Compiling the kernel
--------------------
- - Make sure you have at least gcc 4.9 available.
+ - Make sure you have at least gcc 5.1 available.
For more information, refer to :ref:`Documentation/process/changes.rst <changes>`.
Please note that you can still run a.out user programs with this kernel.
case the Linux IRQ numbers cannot be dynamically assigned and the legacy
mapping should be used.
-As the name implies, the *_legacy() functions are deprecated and only
+As the name implies, the \*_legacy() functions are deprecated and only
exist to ease the support of ancient platforms. No new users should be
-added.
+added. Same goes for the \*_simple() functions when their use results
+in the legacy behaviour.
The legacy map assumes a contiguous range of IRQ numbers has already
been allocated for the controller and that the IRQ number can be
- const: toradex,apalis_t30
- const: nvidia,tegra30
- items:
- - const: toradex,apalis_t30-eval-v1.1
+ - const: toradex,apalis_t30-v1.1-eval
- const: toradex,apalis_t30-eval
- const: toradex,apalis_t30-v1.1
- const: toradex,apalis_t30
All DISP device tree nodes must be siblings to the central MMSYS_CONFIG node.
For a description of the MMSYS_CONFIG binding, see
-Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt.
+Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml.
DISP function blocks
====================
- const: allwinner,sun8i-v3s-emac
- const: allwinner,sun50i-a64-emac
- items:
- - const: allwinner,sun50i-h6-emac
+ - enum:
+ - allwinner,sun20i-d1-emac
+ - allwinner,sun50i-h6-emac
- const: allwinner,sun50i-a64-emac
reg:
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ufs/samsung,exynos-ufs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SoC series UFS host controller Device Tree Bindings
+
+maintainers:
+ - Alim Akhtar <alim.akhtar@samsung.com>
+
+description: |
+ Each Samsung UFS host controller instance should have its own node.
+ This binding define Samsung specific binding other then what is used
+ in the common ufshcd bindings
+ [1] Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+
+properties:
+
+ compatible:
+ enum:
+ - samsung,exynos7-ufs
+
+ reg:
+ items:
+ - description: HCI register
+ - description: vendor specific register
+ - description: unipro register
+ - description: UFS protector register
+
+ reg-names:
+ items:
+ - const: hci
+ - const: vs_hci
+ - const: unipro
+ - const: ufsp
+
+ clocks:
+ items:
+ - description: ufs link core clock
+ - description: unipro main clock
+
+ clock-names:
+ items:
+ - const: core_clk
+ - const: sclk_unipro_main
+
+ interrupts:
+ maxItems: 1
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: ufs-phy
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - phys
+ - phy-names
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/exynos7-clk.h>
+
+ ufs: ufs@15570000 {
+ compatible = "samsung,exynos7-ufs";
+ reg = <0x15570000 0x100>,
+ <0x15570100 0x100>,
+ <0x15571000 0x200>,
+ <0x15572000 0x300>;
+ reg-names = "hci", "vs_hci", "unipro", "ufsp";
+ interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clock_fsys1 ACLK_UFS20_LINK>,
+ <&clock_fsys1 SCLK_UFSUNIPRO20_USER>;
+ clock-names = "core_clk", "sclk_unipro_main";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ufs_rst_n &ufs_refclk_out>;
+ phys = <&ufs_phy>;
+ phy-names = "ufs-phy";
+ };
+...
- 0x88A8 traffic will not be received unless VLAN stripping is disabled with
the following command::
- # ethool -K <ethX> rxvlan off
+ # ethtool -K <ethX> rxvlan off
- 0x88A8/0x8100 double VLANs cannot be used with 0x8100 or 0x8100/0x8100 VLANS
configured on the same port. 0x88a8/0x8100 traffic will not be received if
Device Tree bindings and board design
=====================================
-This section references ``Documentation/devicetree/bindings/net/dsa/sja1105.txt``
+This section references ``Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml``
and aims to showcase some potential switch caveats.
RMII PHY role and out-of-band signaling
====================== =============== ========================================
Program Minimal version Command to check the version
====================== =============== ========================================
-GNU C 4.9 gcc --version
+GNU C 5.1 gcc --version
Clang/LLVM (optional) 10.0.1 clang --version
GNU make 3.81 make --version
binutils 2.23 ld -v
编译内核
---------
- - 确保您至少有gcc 4.9可用。
+ - 确保您至少有gcc 5.1可用。
有关更多信息，请参阅 :ref:`Documentation/process/changes.rst <changes>` 。
请注意，您仍然可以使用此内核运行a.out用户程序。
編譯內核
---------
- - 確保您至少有gcc 4.9可用。
+ - 確保您至少有gcc 5.1可用。
有關更多信息，請參閱 :ref:`Documentation/process/changes.rst <changes>` 。
請注意，您仍然可以使用此內核運行a.out用戶程序。
S: Maintained
F: drivers/platform/x86/amd-pmc.*
-AMD POWERPLAY
+AMD POWERPLAY AND SWSMU
M: Evan Quan <evan.quan@amd.com>
L: amd-gfx@lists.freedesktop.org
S: Supported
T: git https://gitlab.freedesktop.org/agd5f/linux.git
-F: drivers/gpu/drm/amd/pm/powerplay/
+F: drivers/gpu/drm/amd/pm/
AMD PTDMA DRIVER
M: Sanjay R Mehta <sanju.mehta@amd.com>
F: arch/arm/mach-pxa/vpac270.c
ARM/VT8500 ARM ARCHITECTURE
-M: Tony Prisk <linux@prisktech.co.nz>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
+S: Orphan
F: Documentation/devicetree/bindings/i2c/i2c-wmt.txt
F: arch/arm/mach-vt8500/
F: drivers/clocksource/timer-vt8500.c
F: drivers/scsi/nsp32*
NIOS2 ARCHITECTURE
-M: Ley Foon Tan <ley.foon.tan@intel.com>
+M: Dinh Nguyen <dinguyen@kernel.org>
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
F: arch/nios2/
NITRO ENCLAVES (NE)
F: drivers/pci/controller/pci-ixp4xx.c
PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
-M: Jonathan Derrick <jonathan.derrick@intel.com>
+M: Nirmal Patel <nirmal.patel@linux.intel.com>
+R: Jonathan Derrick <jonathan.derrick@linux.dev>
L: linux-pci@vger.kernel.org
S: Supported
F: drivers/pci/controller/vmd.c
S: Supported
F: drivers/char/pcmcia/scr24x_cs.c
-SCSI CDROM DRIVER
-M: Jens Axboe <axboe@kernel.dk>
-L: linux-scsi@vger.kernel.org
-S: Maintained
-W: http://www.kernel.dk
-F: drivers/scsi/sr*
-
SCSI RDMA PROTOCOL (SRP) INITIATOR
M: Bart Van Assche <bvanassche@acm.org>
L: linux-rdma@vger.kernel.org
SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
M: Karsten Graul <kgraul@linux.ibm.com>
-M: Guvenc Gulce <guvenc@linux.ibm.com>
L: linux-s390@vger.kernel.org
S: Supported
W: http://www.ibm.com/developerworks/linux/linux390/
F: arch/x86/boot/video*
SWIOTLB SUBSYSTEM
-M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+M: Christoph Hellwig <hch@infradead.org>
L: iommu@lists.linux-foundation.org
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb.git
+W: http://git.infradead.org/users/hch/dma-mapping.git
+T: git git://git.infradead.org/users/hch/dma-mapping.git
F: arch/*/kernel/pci-swiotlb.c
F: include/linux/swiotlb.h
F: kernel/dma/swiotlb.c
F: drivers/usb/misc/chaoskey.c
USB CYPRESS C67X00 DRIVER
-M: Peter Korsgaard <jacmet@sunsite.dk>
L: linux-usb@vger.kernel.org
-S: Maintained
+S: Orphan
F: drivers/usb/c67x00/
USB DAVICOM DM9601 DRIVER
-M: Peter Korsgaard <jacmet@sunsite.dk>
+M: Peter Korsgaard <peter@korsgaard.com>
L: netdev@vger.kernel.org
S: Maintained
W: http://www.linux-usb.org/usbnet
F: tools/lib/bpf/xsk*
XEN BLOCK SUBSYSTEM
-M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
M: Roger Pau Monné <roger.pau@citrix.com>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
S: Supported
F: drivers/net/xen-netback/*
XEN PCI SUBSYSTEM
-M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+M: Juergen Gross <jgross@suse.com>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
S: Supported
F: arch/x86/pci/*xen*
F: sound/xen/*
XEN SWIOTLB SUBSYSTEM
-M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+M: Juergen Gross <jgross@suse.com>
+M: Stefano Stabellini <sstabellini@kernel.org>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
L: iommu@lists.linux-foundation.org
S: Supported
VERSION = 5
PATCHLEVEL = 15
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc3
NAME = Opossums on Parade
# *DOCUMENTATION*
DEBUG_CFLAGS :=
-# Workaround for GCC versions < 5.0
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801
-ifdef CONFIG_CC_IS_GCC
-DEBUG_CFLAGS += $(call cc-ifversion, -lt, 0500, $(call cc-option, -fno-var-tracking-assignments))
-endif
-
ifdef CONFIG_DEBUG_INFO
ifdef CONFIG_DEBUG_INFO_SPLIT
select NEED_SG_DMA_LENGTH
select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
- select GENERIC_PCI_IOMAP if PCI
+ select GENERIC_PCI_IOMAP
select AUTO_IRQ_AFFINITY if SMP
select GENERIC_IRQ_SHOW
select ARCH_WANT_IPC_PARSE_VERSION
config ALPHA_JENSEN
bool "Jensen"
- depends on BROKEN
select HAVE_EISA
help
DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
extern void __remlu(void);
extern void __divqu(void);
extern void __remqu(void);
+extern unsigned long __udiv_qrnnd(unsigned long *, unsigned long, unsigned long , unsigned long);
* Change virtual addresses to physical addresses and vv.
*/
#ifdef USE_48_BIT_KSEG
-static inline unsigned long virt_to_phys(void *address)
+static inline unsigned long virt_to_phys(volatile void *address)
{
return (unsigned long)address - IDENT_ADDR;
}
return (void *) (address + IDENT_ADDR);
}
#else
-static inline unsigned long virt_to_phys(void *address)
+static inline unsigned long virt_to_phys(volatile void *address)
{
unsigned long phys = (unsigned long)address;
extern unsigned long __direct_map_base;
extern unsigned long __direct_map_size;
-static inline unsigned long __deprecated virt_to_bus(void *address)
+static inline unsigned long __deprecated virt_to_bus(volatile void *address)
{
unsigned long phys = virt_to_phys(address);
unsigned long bus = phys + __direct_map_base;
* convinced that I need one of the newer machines.
*/
-static inline unsigned int jensen_local_inb(unsigned long addr)
+__EXTERN_INLINE unsigned int jensen_local_inb(unsigned long addr)
{
return 0xff & *(vuip)((addr << 9) + EISA_VL82C106);
}
-static inline void jensen_local_outb(u8 b, unsigned long addr)
+__EXTERN_INLINE void jensen_local_outb(u8 b, unsigned long addr)
{
*(vuip)((addr << 9) + EISA_VL82C106) = b;
mb();
}
-static inline unsigned int jensen_bus_inb(unsigned long addr)
+__EXTERN_INLINE unsigned int jensen_bus_inb(unsigned long addr)
{
long result;
return __kernel_extbl(result, addr & 3);
}
-static inline void jensen_bus_outb(u8 b, unsigned long addr)
+__EXTERN_INLINE void jensen_bus_outb(u8 b, unsigned long addr)
{
jensen_set_hae(0);
*(vuip)((addr << 7) + EISA_IO + 0x00) = b * 0x01010101;
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ALPHA_SETUP_H
+#define __ALPHA_SETUP_H
+
+#include <uapi/asm/setup.h>
+
+/*
+ * We leave one page for the initial stack page, and one page for
+ * the initial process structure. Also, the console eats 3 MB for
+ * the initial bootloader (one of which we can reclaim later).
+ */
+#define BOOT_PCB 0x20000000
+#define BOOT_ADDR 0x20000000
+/* Remove when official MILO sources have ELF support: */
+#define BOOT_SIZE (16*1024)
+
+#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
+#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */
+#else
+#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */
+#endif
+
+#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS)
+#define SWAPPER_PGD KERNEL_START
+#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
+#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
+#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
+#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
+
+#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
+
+/*
+ * This is setup by the secondary bootstrap loader. Because
+ * the zero page is zeroed out as soon as the vm system is
+ * initialized, we need to copy things out into a more permanent
+ * place.
+ */
+#define PARAM ZERO_PGE
+#define COMMAND_LINE ((char *)(absolute_pointer(PARAM + 0x0000)))
+#define INITRD_START (*(unsigned long *) (PARAM+0x100))
+#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108))
+
+#endif
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef __ALPHA_SETUP_H
-#define __ALPHA_SETUP_H
+#ifndef _UAPI__ALPHA_SETUP_H
+#define _UAPI__ALPHA_SETUP_H
#define COMMAND_LINE_SIZE 256
-/*
- * We leave one page for the initial stack page, and one page for
- * the initial process structure. Also, the console eats 3 MB for
- * the initial bootloader (one of which we can reclaim later).
- */
-#define BOOT_PCB 0x20000000
-#define BOOT_ADDR 0x20000000
-/* Remove when official MILO sources have ELF support: */
-#define BOOT_SIZE (16*1024)
-
-#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
-#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */
-#else
-#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */
-#endif
-
-#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS)
-#define SWAPPER_PGD KERNEL_START
-#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
-#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
-#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
-#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
-
-#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
-
-/*
- * This is setup by the secondary bootstrap loader. Because
- * the zero page is zeroed out as soon as the vm system is
- * initialized, we need to copy things out into a more permanent
- * place.
- */
-#define PARAM ZERO_PGE
-#define COMMAND_LINE ((char*)(PARAM + 0x0000))
-#define INITRD_START (*(unsigned long *) (PARAM+0x100))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108))
-
-#endif
+#endif /* _UAPI__ALPHA_SETUP_H */
*
* Code supporting the Jensen.
*/
+#define __EXTERN_INLINE
+#include <asm/io.h>
+#include <asm/jensen.h>
+#undef __EXTERN_INLINE
+
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <asm/ptrace.h>
-#define __EXTERN_INLINE inline
-#include <asm/io.h>
-#include <asm/jensen.h>
-#undef __EXTERN_INLINE
-
#include <asm/dma.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
ev67-$(CONFIG_ALPHA_EV67) := ev67-
lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
+ udiv-qrnnd.o \
udelay.o \
$(ev6-y)memset.o \
$(ev6-y)memcpy.o \
# along with GCC; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
# MA 02111-1307, USA.
+#include <asm/export.h>
.set noreorder
.set noat
ret $31,($26),1
.end __udiv_qrnnd
+EXPORT_SYMBOL(__udiv_qrnnd)
obj-$(CONFIG_MATHEMU) += math-emu.o
-math-emu-objs := math.o qrnnd.o
+math-emu-objs := math.o
egress:
return si_code;
}
-
-EXPORT_SYMBOL(__udiv_qrnnd);
uprobe_notify_resume(regs);
} else {
tracehook_notify_resume(regs);
- rseq_handle_notify_resume(NULL, regs);
}
}
local_irq_disable();
select ARCH_SUPPORTS_LTO_CLANG_THIN
select ARCH_SUPPORTS_CFI_CLANG
select ARCH_SUPPORTS_ATOMIC_RMW
- select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG)
+ select ARCH_SUPPORTS_INT128 if CC_HAS_INT128
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION if COMPAT
select ARCH_WANT_DEFAULT_BPF_JIT
interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
phys = <&qusb_phy_0>, <&usb0_ssphy>;
phy-names = "usb2-phy", "usb3-phy";
- tx-fifo-resize;
snps,is-utmi-l1-suspend;
snps,hird-threshold = /bits/ 8 <0x0>;
snps,dis_u2_susphy_quirk;
interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
phys = <&qusb_phy_1>, <&usb1_ssphy>;
phy-names = "usb2-phy", "usb3-phy";
- tx-fifo-resize;
snps,is-utmi-l1-suspend;
snps,hird-threshold = /bits/ 8 <0x0>;
snps,dis_u2_susphy_quirk;
void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
#define acpi_os_ioremap acpi_os_ioremap
-void __iomem *acpi_os_memmap(acpi_physical_address phys, acpi_size size);
-#define acpi_os_memmap acpi_os_memmap
-
typedef u64 phys_cpuid_t;
#define PHYS_CPUID_INVALID INVALID_HWID
#define EXPORT_SYMBOL_NOKASAN(name) EXPORT_SYMBOL(name)
#endif
+#ifdef CONFIG_KASAN_HW_TAGS
+#define EXPORT_SYMBOL_NOHWKASAN(name)
+#else
+#define EXPORT_SYMBOL_NOHWKASAN(name) EXPORT_SYMBOL_NOKASAN(name)
+#endif
/*
* Emit a 64-bit absolute little endian symbol reference in a way that
* ensures that it will be resolved at build time, even when building a
static inline void mte_check_tfsr_entry(void)
{
+ if (!system_supports_mte())
+ return;
+
mte_check_tfsr_el1();
}
static inline void mte_check_tfsr_exit(void)
{
+ if (!system_supports_mte())
+ return;
+
/*
* The asynchronous faults are sync'ed automatically with
* TFSR_EL1 on kernel entry but for exit an explicit dsb()
#define __HAVE_ARCH_STRCHR
extern char *strchr(const char *, int c);
+#ifndef CONFIG_KASAN_HW_TAGS
#define __HAVE_ARCH_STRCMP
extern int strcmp(const char *, const char *);
#define __HAVE_ARCH_STRNCMP
extern int strncmp(const char *, const char *, __kernel_size_t);
+#endif
#define __HAVE_ARCH_STRLEN
extern __kernel_size_t strlen(const char *);
return __pgprot(PROT_DEVICE_nGnRnE);
}
-static void __iomem *__acpi_os_ioremap(acpi_physical_address phys,
- acpi_size size, bool memory)
+void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
{
efi_memory_desc_t *md, *region = NULL;
pgprot_t prot;
* It is fine for AML to remap regions that are not represented in the
* EFI memory map at all, as it only describes normal memory, and MMIO
* regions that require a virtual mapping to make them accessible to
- * the EFI runtime services. Determine the region default
- * attributes by checking the requested memory semantics.
+ * the EFI runtime services.
*/
- prot = memory ? __pgprot(PROT_NORMAL_NC) :
- __pgprot(PROT_DEVICE_nGnRnE);
+ prot = __pgprot(PROT_DEVICE_nGnRnE);
if (region) {
switch (region->type) {
case EFI_LOADER_CODE:
return __ioremap(phys, size, prot);
}
-void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
-{
- return __acpi_os_ioremap(phys, size, false);
-}
-
-void __iomem *acpi_os_memmap(acpi_physical_address phys, acpi_size size)
-{
- return __acpi_os_ioremap(phys, size, true);
-}
-
/*
* Claim Synchronous External Aborts as a firmware first notification.
*
/*
* For reasons that aren't entirely clear, enabling KPTI on Cavium
* ThunderX leads to apparent I-cache corruption of kernel text, which
- * ends as well as you might imagine. Don't even try.
+ * ends as well as you might imagine. Don't even try. We cannot rely
+ * on the cpus_have_*cap() helpers here to detect the CPU erratum
+ * because cpucap detection order may change. However, since we know
+ * affected CPUs are always in a homogeneous configuration, it is
+ * safe to rely on this_cpu_has_cap() here.
*/
- if (cpus_have_const_cap(ARM64_WORKAROUND_CAVIUM_27456)) {
+ if (this_cpu_has_cap(ARM64_WORKAROUND_CAVIUM_27456)) {
str = "ARM64_WORKAROUND_CAVIUM_27456";
__kpti_forced = -1;
}
void sve_alloc(struct task_struct *task)
{
if (task->thread.sve_state) {
- memset(task->thread.sve_state, 0, sve_state_size(current));
+ memset(task->thread.sve_state, 0, sve_state_size(task));
return;
}
#ifdef CONFIG_KASAN_HW_TAGS
void mte_check_tfsr_el1(void)
{
- u64 tfsr_el1;
-
- if (!system_supports_mte())
- return;
-
- tfsr_el1 = read_sysreg_s(SYS_TFSR_EL1);
+ u64 tfsr_el1 = read_sysreg_s(SYS_TFSR_EL1);
if (unlikely(tfsr_el1 & SYS_TFSR_EL1_TF1)) {
/*
void mte_thread_switch(struct task_struct *next)
{
+ if (!system_supports_mte())
+ return;
+
mte_update_sctlr_user(next);
/*
#include <linux/mman.h>
#include <linux/mm.h>
#include <linux/nospec.h>
-#include <linux/sched.h>
#include <linux/stddef.h>
#include <linux/sysctl.h>
#include <linux/unistd.h>
#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_STACKPROTECTOR_PER_TASK)
#include <linux/stackprotector.h>
-unsigned long __stack_chk_guard __read_mostly;
+unsigned long __stack_chk_guard __ro_after_init;
EXPORT_SYMBOL(__stack_chk_guard);
#endif
if (thread_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
do_signal(regs);
- if (thread_flags & _TIF_NOTIFY_RESUME) {
+ if (thread_flags & _TIF_NOTIFY_RESUME)
tracehook_notify_resume(regs);
- rseq_handle_notify_resume(NULL, regs);
- }
if (thread_flags & _TIF_FOREIGN_FPSTATE)
fpsimd_restore_current_state();
# runtime. Because the hypervisor is part of the kernel binary, relocations
# produce a kernel VA. We enumerate relocations targeting hyp at build time
# and convert the kernel VAs at those positions to hyp VAs.
-$(obj)/hyp-reloc.S: $(obj)/kvm_nvhe.tmp.o $(obj)/gen-hyprel
+$(obj)/hyp-reloc.S: $(obj)/kvm_nvhe.tmp.o $(obj)/gen-hyprel FORCE
$(call if_changed,hyprel)
# 5) Compile hyp-reloc.S and link it into the existing partially linked object.
int kvm_perf_init(void)
{
- if (kvm_pmu_probe_pmuver() != ID_AA64DFR0_PMUVER_IMP_DEF && !is_protected_kvm_enabled())
- static_branch_enable(&kvm_arm_pmu_available);
-
return perf_register_guest_info_callbacks(&kvm_guest_cbs);
}
kvm_pmu_create_perf_event(vcpu, select_idx);
}
-int kvm_pmu_probe_pmuver(void)
+void kvm_host_pmu_init(struct arm_pmu *pmu)
+{
+ if (pmu->pmuver != 0 && pmu->pmuver != ID_AA64DFR0_PMUVER_IMP_DEF &&
+ !kvm_arm_support_pmu_v3() && !is_protected_kvm_enabled())
+ static_branch_enable(&kvm_arm_pmu_available);
+}
+
+static int kvm_pmu_probe_pmuver(void)
{
struct perf_event_attr attr = { };
struct perf_event *event;
ret
SYM_FUNC_END_PI(strcmp)
-EXPORT_SYMBOL_NOKASAN(strcmp)
+EXPORT_SYMBOL_NOHWKASAN(strcmp)
ret
SYM_FUNC_END_PI(strncmp)
-EXPORT_SYMBOL_NOKASAN(strncmp)
+EXPORT_SYMBOL_NOHWKASAN(strncmp)
if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
do_signal(regs);
- if (thread_info_flags & _TIF_NOTIFY_RESUME) {
+ if (thread_info_flags & _TIF_NOTIFY_RESUME)
tracehook_notify_resume(regs);
- rseq_handle_notify_resume(NULL, regs);
- }
}
if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
do_signal(regs);
- if (thread_info_flags & _TIF_NOTIFY_RESUME) {
+ if (thread_info_flags & _TIF_NOTIFY_RESUME)
tracehook_notify_resume(regs);
- rseq_handle_notify_resume(NULL, regs);
- }
user_enter();
}
config EARLY_PRINTK
bool "Activate early kernel debugging"
default y
+ depends on TTY
select SERIAL_CORE_CONSOLE
help
- Enable early printk on console
+ Enable early printk on console.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized.
You should normally say N here, unless you want to debug such a crash.
void __init setup_arch(char **cmdline_p)
{
- int dram_start;
-
console_verbose();
memory_start = memblock_start_of_DRAM();
#include <asm-generic/getorder.h>
#include <asm/pdc.h>
-#define PAGE0 ((struct zeropage *)__PAGE_OFFSET)
+#define PAGE0 ((struct zeropage *)absolute_pointer(__PAGE_OFFSET))
/* DEFINITION OF THE ZERO-PAGE (PAG0) */
/* based on work by Jason Eckhardt (jason@equator.com) */
}
}
+#ifdef CONFIG_PCI
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
if (!INDIRECT_ADDR(addr)) {
iounmap(addr);
}
}
+EXPORT_SYMBOL(pci_iounmap);
+#endif
EXPORT_SYMBOL(ioread8);
EXPORT_SYMBOL(ioread16);
EXPORT_SYMBOL(iowrite32_rep);
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
-EXPORT_SYMBOL(pci_iounmap);
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
-pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
- -include $(srctree)/include/linux/compiler_attributes.h \
$(LINUXINCLUDE)
ifdef CONFIG_PPC64_BOOT_WRAPPER
BOOTCFLAGS += -fno-stack-protector
endif
+BOOTCFLAGS += -include $(srctree)/include/linux/compiler_attributes.h
BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj)
DTC_FLAGS ?= -p 1024
# define ASM_CONST(x) __ASM_CONST(x)
#endif
-/*
- * Inline assembly memory constraint
- *
- * GCC 4.9 doesn't properly handle pre update memory constraint "m<>"
- *
- */
-#if defined(GCC_VERSION) && GCC_VERSION < 50000
-#define UPD_CONSTR ""
-#else
#define UPD_CONSTR "<>"
-#endif
#endif /* _ASM_POWERPC_ASM_CONST_H */
#include <asm/switch_to.h>
#include <asm/syscall.h>
#include <asm/time.h>
+#include <asm/tm.h>
#include <asm/unistd.h>
#if defined(CONFIG_PPC_ADV_DEBUG_REGS) && defined(CONFIG_PPC32)
*/
irq_soft_mask_regs_set_state(regs, IRQS_ENABLED);
+ /*
+ * If system call is called with TM active, set _TIF_RESTOREALL to
+ * prevent RFSCV being used to return to userspace, because POWER9
+ * TM implementation has problems with this instruction returning to
+ * transactional state. Final register values are not relevant because
+ * the transaction will be aborted upon return anyway. Or in the case
+ * of unsupported_scv SIGILL fault, the return state does not much
+ * matter because it's an edge case.
+ */
+ if (IS_ENABLED(CONFIG_PPC_TRANSACTIONAL_MEM) &&
+ unlikely(MSR_TM_TRANSACTIONAL(regs->msr)))
+ current_thread_info()->flags |= _TIF_RESTOREALL;
+
+ /*
+ * If the system call was made with a transaction active, doom it and
+ * return without performing the system call. Unless it was an
+ * unsupported scv vector, in which case it's treated like an illegal
+ * instruction.
+ */
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ if (unlikely(MSR_TM_TRANSACTIONAL(regs->msr)) &&
+ !trap_is_unsupported_scv(regs)) {
+ /* Enable TM in the kernel, and disable EE (for scv) */
+ hard_irq_disable();
+ mtmsr(mfmsr() | MSR_TM);
+
+ /* tabort, this dooms the transaction, nothing else */
+ asm volatile(".long 0x7c00071d | ((%0) << 16)"
+ :: "r"(TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT));
+
+ /*
+ * Userspace will never see the return value. Execution will
+ * resume after the tbegin. of the aborted transaction with the
+ * checkpointed register state. A context switch could occur
+ * or signal delivered to the process before resuming the
+ * doomed transaction context, but that should all be handled
+ * as expected.
+ */
+ return -ENOSYS;
+ }
+#endif // CONFIG_PPC_TRANSACTIONAL_MEM
+
local_irq_enable();
if (unlikely(current_thread_info()->flags & _TIF_SYSCALL_DOTRACE)) {
#include <asm/mmu.h>
#include <asm/ppc_asm.h>
#include <asm/ptrace.h>
-#include <asm/tm.h>
.section ".toc","aw"
SYS_CALL_TABLE:
.globl system_call_vectored_\name
system_call_vectored_\name:
_ASM_NOKPROBE_SYMBOL(system_call_vectored_\name)
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-BEGIN_FTR_SECTION
- extrdi. r10, r12, 1, (63-MSR_TS_T_LG) /* transaction active? */
- bne tabort_syscall
-END_FTR_SECTION_IFSET(CPU_FTR_TM)
-#endif
SCV_INTERRUPT_TO_KERNEL
mr r10,r1
ld r1,PACAKSAVE(r13)
.globl system_call_common
system_call_common:
_ASM_NOKPROBE_SYMBOL(system_call_common)
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-BEGIN_FTR_SECTION
- extrdi. r10, r12, 1, (63-MSR_TS_T_LG) /* transaction active? */
- bne tabort_syscall
-END_FTR_SECTION_IFSET(CPU_FTR_TM)
-#endif
mr r10,r1
ld r1,PACAKSAVE(r13)
std r10,0(r1)
RESTART_TABLE(.Lsyscall_rst_start, .Lsyscall_rst_end, syscall_restart)
#endif
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-tabort_syscall:
-_ASM_NOKPROBE_SYMBOL(tabort_syscall)
- /* Firstly we need to enable TM in the kernel */
- mfmsr r10
- li r9, 1
- rldimi r10, r9, MSR_TM_LG, 63-MSR_TM_LG
- mtmsrd r10, 0
-
- /* tabort, this dooms the transaction, nothing else */
- li r9, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
- TABORT(R9)
-
- /*
- * Return directly to userspace. We have corrupted user register state,
- * but userspace will never see that register state. Execution will
- * resume after the tbegin of the aborted transaction with the
- * checkpointed register state.
- */
- li r9, MSR_RI
- andc r10, r10, r9
- mtmsrd r10, 1
- mtspr SPRN_SRR0, r11
- mtspr SPRN_SRR1, r12
- RFI_TO_USER
- b . /* prevent speculative execution */
-#endif
-
/*
* If MSR EE/RI was never enabled, IRQs not reconciled, NVGPRs not
* touched, no exit work created, then this can be used.
{
int index;
struct machine_check_event evt;
+ unsigned long msr;
if (!get_mce_event(&evt, MCE_EVENT_RELEASE))
return;
memcpy(&local_paca->mce_info->mce_event_queue[index],
&evt, sizeof(evt));
- /* Queue irq work to process this event later. */
- irq_work_queue(&mce_event_process_work);
+ /*
+ * Queue irq work to process this event later. Before
+ * queuing the work enable translation for non radix LPAR,
+ * as irq_work_queue may try to access memory outside RMO
+ * region.
+ */
+ if (!radix_enabled() && firmware_has_feature(FW_FEATURE_LPAR)) {
+ msr = mfmsr();
+ mtmsr(msr | MSR_IR | MSR_DR);
+ irq_work_queue(&mce_event_process_work);
+ mtmsr(msr);
+ } else {
+ irq_work_queue(&mce_event_process_work);
+ }
}
void mce_common_process_ue(struct pt_regs *regs,
do_signal(current);
}
- if (thread_info_flags & _TIF_NOTIFY_RESUME) {
+ if (thread_info_flags & _TIF_NOTIFY_RESUME)
tracehook_notify_resume(regs);
- rseq_handle_notify_resume(NULL, regs);
- }
}
static unsigned long get_tm_stackpointer(struct task_struct *tsk)
/* The following code handles the fake_suspend = 1 case */
mflr r0
std r0, PPC_LR_STKOFF(r1)
- stdu r1, -PPC_MIN_STKFRM(r1)
+ stdu r1, -TM_FRAME_SIZE(r1)
/* Turn on TM. */
mfmsr r8
END_FTR_SECTION_IFSET(CPU_FTR_P9_TM_XER_SO_BUG)
nop
+ /*
+ * It's possible that treclaim. may modify registers, if we have lost
+ * track of fake-suspend state in the guest due to it using rfscv.
+ * Save and restore registers in case this occurs.
+ */
+ mfspr r3, SPRN_DSCR
+ mfspr r4, SPRN_XER
+ mfspr r5, SPRN_AMR
+ /* SPRN_TAR would need to be saved here if the kernel ever used it */
+ mfcr r12
+ SAVE_NVGPRS(r1)
+ SAVE_GPR(2, r1)
+ SAVE_GPR(3, r1)
+ SAVE_GPR(4, r1)
+ SAVE_GPR(5, r1)
+ stw r12, 8(r1)
+ std r1, HSTATE_HOST_R1(r13)
+
/* We have to treclaim here because that's the only way to do S->N */
li r3, TM_CAUSE_KVM_RESCHED
TRECLAIM(R3)
+ GET_PACA(r13)
+ ld r1, HSTATE_HOST_R1(r13)
+ REST_GPR(2, r1)
+ REST_GPR(3, r1)
+ REST_GPR(4, r1)
+ REST_GPR(5, r1)
+ lwz r12, 8(r1)
+ REST_NVGPRS(r1)
+ mtspr SPRN_DSCR, r3
+ mtspr SPRN_XER, r4
+ mtspr SPRN_AMR, r5
+ mtcr r12
+ HMT_MEDIUM
+
/*
* We were in fake suspend, so we are not going to save the
* register state as the guest checkpointed state (since
std r5, VCPU_TFHAR(r9)
std r6, VCPU_TFIAR(r9)
- addi r1, r1, PPC_MIN_STKFRM
+ addi r1, r1, TM_FRAME_SIZE
ld r0, PPC_LR_STKOFF(r1)
mtlr r0
blr
if (xics_ics->check(xics_ics, hwirq))
return -EINVAL;
- /* No chip data for the XICS domain */
+ /* Let the ICS be the chip data for the XICS domain. For ICS native */
irq_domain_set_info(domain, virq, hwirq, xics_ics->chip,
- NULL, handle_fasteoi_irq, NULL, NULL);
+ xics_ics, handle_fasteoi_irq, NULL, NULL);
return 0;
}
config ARCH_RV64I
bool "RV64I"
select 64BIT
- select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && GCC_VERSION >= 50000
+ select ARCH_SUPPORTS_INT128 if CC_HAS_INT128
select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && $(cc-option,-fpatchable-function-entry=8)
select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
The minimum size for the stack guard should be 256 for 31 bit and
512 for 64 bit.
-config WARN_DYNAMIC_STACK
- def_bool n
- prompt "Emit compiler warnings for function with dynamic stack usage"
- help
- This option enables the compiler option -mwarn-dynamicstack. If the
- compiler supports this options generates warnings for functions
- that dynamically allocate stack space using alloca.
-
- Say N if you are unsure.
-
endmenu
menu "I/O subsystem"
endif
endif
-ifdef CONFIG_WARN_DYNAMIC_STACK
- ifneq ($(call cc-option,-mwarn-dynamicstack),)
- KBUILD_CFLAGS += -mwarn-dynamicstack
- KBUILD_CFLAGS_DECOMPRESSOR += -mwarn-dynamicstack
- endif
-endif
-
ifdef CONFIG_EXPOLINE
ifneq ($(call cc-option,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),)
CC_FLAGS_EXPOLINE := -mindirect-branch=thunk
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_LSM=y
CONFIG_PREEMPT=y
+CONFIG_SCHED_CORE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
+# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_MLX4_EN=m
CONFIG_MLX5_CORE=m
CONFIG_NFSD_V4=y
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_CIFS=m
-CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_DMA_API_DEBUG=y
-CONFIG_STRING_SELFTEST=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
CONFIG_LKDTM=m
CONFIG_TEST_MIN_HEAP=y
-CONFIG_TEST_SORT=y
CONFIG_KPROBES_SANITY_TEST=y
CONFIG_RBTREE_TEST=y
CONFIG_INTERVAL_TREE_TEST=m
CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=y
+CONFIG_STRING_SELFTEST=y
CONFIG_TEST_BITOPS=m
CONFIG_TEST_BPF=m
CONFIG_TEST_LIVEPATCH=m
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_LSM=y
+CONFIG_SCHED_CORE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
+# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_MLX4_EN=m
CONFIG_MLX5_CORE=m
CONFIG_NFSD_V4=y
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_CIFS=m
-CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
int num_devices, const char *buf);
extern int ccwgroup_set_online(struct ccwgroup_device *gdev);
-extern int ccwgroup_set_offline(struct ccwgroup_device *gdev);
+int ccwgroup_set_offline(struct ccwgroup_device *gdev, bool call_gdrv);
extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
static void __set_cpu_idle(struct kvm_vcpu *vcpu)
{
kvm_s390_set_cpuflags(vcpu, CPUSTAT_WAIT);
- set_bit(kvm_vcpu_get_idx(vcpu), vcpu->kvm->arch.idle_mask);
+ set_bit(vcpu->vcpu_idx, vcpu->kvm->arch.idle_mask);
}
static void __unset_cpu_idle(struct kvm_vcpu *vcpu)
{
kvm_s390_clear_cpuflags(vcpu, CPUSTAT_WAIT);
- clear_bit(kvm_vcpu_get_idx(vcpu), vcpu->kvm->arch.idle_mask);
+ clear_bit(vcpu->vcpu_idx, vcpu->kvm->arch.idle_mask);
}
static void __reset_intercept_indicators(struct kvm_vcpu *vcpu)
kvm_s390_patch_guest_per_regs(vcpu);
}
- clear_bit(kvm_vcpu_get_idx(vcpu), vcpu->kvm->arch.gisa_int.kicked_mask);
+ clear_bit(vcpu->vcpu_idx, vcpu->kvm->arch.gisa_int.kicked_mask);
vcpu->arch.sie_block->icptcode = 0;
cpuflags = atomic_read(&vcpu->arch.sie_block->cpuflags);
static inline int is_vcpu_idle(struct kvm_vcpu *vcpu)
{
- return test_bit(kvm_vcpu_get_idx(vcpu), vcpu->kvm->arch.idle_mask);
+ return test_bit(vcpu->vcpu_idx, vcpu->kvm->arch.idle_mask);
}
static inline int kvm_is_ucontrol(struct kvm *kvm)
#define EMIT6_PCREL(op1, op2, b1, b2, i, off, mask) \
({ \
- /* Branch instruction needs 6 bytes */ \
- int rel = (addrs[(i) + (off) + 1] - (addrs[(i) + 1] - 6)) / 2;\
+ int rel = (addrs[(i) + (off) + 1] - jit->prg) / 2; \
_EMIT6((op1) | reg(b1, b2) << 16 | (rel & 0xffff), (op2) | (mask));\
REG_SET_SEEN(b1); \
REG_SET_SEEN(b2); \
EMIT4(0xb9080000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_ADD | BPF_K: /* dst = (u32) dst + (u32) imm */
- if (!imm)
- break;
- /* alfi %dst,imm */
- EMIT6_IMM(0xc20b0000, dst_reg, imm);
+ if (imm != 0) {
+ /* alfi %dst,imm */
+ EMIT6_IMM(0xc20b0000, dst_reg, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_ADD | BPF_K: /* dst = dst + imm */
EMIT4(0xb9090000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_SUB | BPF_K: /* dst = (u32) dst - (u32) imm */
- if (!imm)
- break;
- /* alfi %dst,-imm */
- EMIT6_IMM(0xc20b0000, dst_reg, -imm);
+ if (imm != 0) {
+ /* alfi %dst,-imm */
+ EMIT6_IMM(0xc20b0000, dst_reg, -imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_SUB | BPF_K: /* dst = dst - imm */
if (!imm)
break;
- /* agfi %dst,-imm */
- EMIT6_IMM(0xc2080000, dst_reg, -imm);
+ if (imm == -0x80000000) {
+ /* algfi %dst,0x80000000 */
+ EMIT6_IMM(0xc20a0000, dst_reg, 0x80000000);
+ } else {
+ /* agfi %dst,-imm */
+ EMIT6_IMM(0xc2080000, dst_reg, -imm);
+ }
break;
/*
* BPF_MUL
EMIT4(0xb90c0000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_MUL | BPF_K: /* dst = (u32) dst * (u32) imm */
- if (imm == 1)
- break;
- /* msfi %r5,imm */
- EMIT6_IMM(0xc2010000, dst_reg, imm);
+ if (imm != 1) {
+ /* msfi %r5,imm */
+ EMIT6_IMM(0xc2010000, dst_reg, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_MUL | BPF_K: /* dst = dst * imm */
if (BPF_OP(insn->code) == BPF_MOD)
/* lhgi %dst,0 */
EMIT4_IMM(0xa7090000, dst_reg, 0);
+ else
+ EMIT_ZERO(dst_reg);
break;
}
/* lhi %w0,0 */
EMIT4(0xb9820000, dst_reg, src_reg);
break;
case BPF_ALU | BPF_XOR | BPF_K: /* dst = (u32) dst ^ (u32) imm */
- if (!imm)
- break;
- /* xilf %dst,imm */
- EMIT6_IMM(0xc0070000, dst_reg, imm);
+ if (imm != 0) {
+ /* xilf %dst,imm */
+ EMIT6_IMM(0xc0070000, dst_reg, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_XOR | BPF_K: /* dst = dst ^ imm */
EMIT6_DISP_LH(0xeb000000, 0x000d, dst_reg, dst_reg, src_reg, 0);
break;
case BPF_ALU | BPF_LSH | BPF_K: /* dst = (u32) dst << (u32) imm */
- if (imm == 0)
- break;
- /* sll %dst,imm(%r0) */
- EMIT4_DISP(0x89000000, dst_reg, REG_0, imm);
+ if (imm != 0) {
+ /* sll %dst,imm(%r0) */
+ EMIT4_DISP(0x89000000, dst_reg, REG_0, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_LSH | BPF_K: /* dst = dst << imm */
EMIT6_DISP_LH(0xeb000000, 0x000c, dst_reg, dst_reg, src_reg, 0);
break;
case BPF_ALU | BPF_RSH | BPF_K: /* dst = (u32) dst >> (u32) imm */
- if (imm == 0)
- break;
- /* srl %dst,imm(%r0) */
- EMIT4_DISP(0x88000000, dst_reg, REG_0, imm);
+ if (imm != 0) {
+ /* srl %dst,imm(%r0) */
+ EMIT4_DISP(0x88000000, dst_reg, REG_0, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_RSH | BPF_K: /* dst = dst >> imm */
EMIT6_DISP_LH(0xeb000000, 0x000a, dst_reg, dst_reg, src_reg, 0);
break;
case BPF_ALU | BPF_ARSH | BPF_K: /* ((s32) dst >> imm */
- if (imm == 0)
- break;
- /* sra %dst,imm(%r0) */
- EMIT4_DISP(0x8a000000, dst_reg, REG_0, imm);
+ if (imm != 0) {
+ /* sra %dst,imm(%r0) */
+ EMIT4_DISP(0x8a000000, dst_reg, REG_0, imm);
+ }
EMIT_ZERO(dst_reg);
break;
case BPF_ALU64 | BPF_ARSH | BPF_K: /* ((s64) dst) >>= imm */
mmap_read_lock(current->mm);
ret = -EINVAL;
- vma = find_vma(current->mm, mmio_addr);
+ vma = vma_lookup(current->mm, mmio_addr);
if (!vma)
goto out_unlock_mmap;
if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))
mmap_read_lock(current->mm);
ret = -EINVAL;
- vma = find_vma(current->mm, mmio_addr);
+ vma = vma_lookup(current->mm, mmio_addr);
if (!vma)
goto out_unlock_mmap;
if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))
$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
$(call if_changed,lzo)
-$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2
+$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2 FORCE
$(call if_changed,uimage,bzip2)
-$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz
+$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,uimage,gzip)
-$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma
+$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma FORCE
$(call if_changed,uimage,lzma)
-$(obj)/uImage.xz: $(obj)/vmlinux.bin.xz
+$(obj)/uImage.xz: $(obj)/vmlinux.bin.xz FORCE
$(call if_changed,uimage,xz)
-$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo
+$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo FORCE
$(call if_changed,uimage,lzo)
-$(obj)/uImage.bin: $(obj)/vmlinux.bin
+$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE
$(call if_changed,uimage,none)
OBJCOPYFLAGS_vmlinux.srec := -I binary -O srec
-$(obj)/vmlinux.srec: $(obj)/compressed/vmlinux
+$(obj)/vmlinux.srec: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
OBJCOPYFLAGS_uImage.srec := -I binary -O srec
-$(obj)/uImage.srec: $(obj)/uImage
+$(obj)/uImage.srec: $(obj)/uImage FORCE
$(call if_changed,objcopy)
$(obj)/uImage: $(obj)/uImage.$(suffix-y)
static inline pmd_t *pud_pgtable(pud_t pud)
{
- return (pmd_t *)pud_val(pud);
+ return (pmd_t *)(unsigned long)pud_val(pud);
}
/* only used by the stubbed out hugetlb gup code, should never be called */
void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
- if (!sparc_dma_free_resource(cpu_addr, PAGE_ALIGN(size)))
+ size = PAGE_ALIGN(size);
+
+ if (!sparc_dma_free_resource(cpu_addr, size))
return;
dma_make_coherent(dma_addr, size);
u32 node_sz; /* node block size */
u32 name_sz; /* name block size */
u32 data_sz; /* data block size */
+ char data[];
} __attribute__((aligned(16)));
struct mdesc_elem {
static struct mdesc_elem *node_block(struct mdesc_hdr *mdesc)
{
- return (struct mdesc_elem *) (mdesc + 1);
+ return (struct mdesc_elem *) mdesc->data;
}
static void *name_block(struct mdesc_hdr *mdesc)
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
+#ifdef CONFIG_PCI
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
/* nothing to do */
}
EXPORT_SYMBOL(pci_iounmap);
+#endif
config ARCH_HIBERNATION_POSSIBLE
def_bool y
+config ARCH_NR_GPIO
+ int
+ default 1024 if X86_64
+ default 512
+
config ARCH_SUSPEND_POSSIBLE
def_bool y
config PCI_XEN
def_bool y
depends on PCI && XEN
- select SWIOTLB_XEN
config MMCONF_FAM10H
def_bool y
tune = $(call cc-option,-mtune=$(1),$(2))
+ifdef CONFIG_CC_IS_CLANG
+align := -falign-functions=0 $(call cc-option,-falign-jumps=0) $(call cc-option,-falign-loops=0)
+else
+align := -falign-functions=0 -falign-jumps=0 -falign-loops=0
+endif
+
cflags-$(CONFIG_M486SX) += -march=i486
cflags-$(CONFIG_M486) += -march=i486
cflags-$(CONFIG_M586) += -march=i586
# They make zero difference whatsosever to performance at this time.
cflags-$(CONFIG_MK7) += -march=athlon
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,-march=athlon)
-cflags-$(CONFIG_MCRUSOE) += -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
-cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) -falign-functions=0 -falign-jumps=0 -falign-loops=0
+cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)
+cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) $(align)
cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) -falign-functions=0 -falign-jumps=0 -falign-loops=0
+cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)
cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686)
cflags-$(CONFIG_MVIAC7) += -march=i686
cflags-$(CONFIG_MCORE2) += -march=i686 $(call tune,core2)
/*
* IPI implementation on Hyper-V.
*/
-static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector)
+static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector,
+ bool exclude_self)
{
struct hv_send_ipi_ex **arg;
struct hv_send_ipi_ex *ipi_arg;
if (!cpumask_equal(mask, cpu_present_mask)) {
ipi_arg->vp_set.format = HV_GENERIC_SET_SPARSE_4K;
- nr_bank = cpumask_to_vpset(&(ipi_arg->vp_set), mask);
+ if (exclude_self)
+ nr_bank = cpumask_to_vpset_noself(&(ipi_arg->vp_set), mask);
+ else
+ nr_bank = cpumask_to_vpset(&(ipi_arg->vp_set), mask);
}
if (nr_bank < 0)
goto ipi_mask_ex_done;
return hv_result_success(status);
}
-static bool __send_ipi_mask(const struct cpumask *mask, int vector)
+static bool __send_ipi_mask(const struct cpumask *mask, int vector,
+ bool exclude_self)
{
- int cur_cpu, vcpu;
+ int cur_cpu, vcpu, this_cpu = smp_processor_id();
struct hv_send_ipi ipi_arg;
u64 status;
+ unsigned int weight;
trace_hyperv_send_ipi_mask(mask, vector);
- if (cpumask_empty(mask))
+ weight = cpumask_weight(mask);
+
+ /*
+ * Do nothing if
+ * 1. the mask is empty
+ * 2. the mask only contains self when exclude_self is true
+ */
+ if (weight == 0 ||
+ (exclude_self && weight == 1 && cpumask_test_cpu(this_cpu, mask)))
return true;
if (!hv_hypercall_pg)
ipi_arg.cpu_mask = 0;
for_each_cpu(cur_cpu, mask) {
+ if (exclude_self && cur_cpu == this_cpu)
+ continue;
vcpu = hv_cpu_number_to_vp_number(cur_cpu);
if (vcpu == VP_INVAL)
return false;
return hv_result_success(status);
do_ex_hypercall:
- return __send_ipi_mask_ex(mask, vector);
+ return __send_ipi_mask_ex(mask, vector, exclude_self);
}
static bool __send_ipi_one(int cpu, int vector)
return false;
if (vp >= 64)
- return __send_ipi_mask_ex(cpumask_of(cpu), vector);
+ return __send_ipi_mask_ex(cpumask_of(cpu), vector, false);
status = hv_do_fast_hypercall16(HVCALL_SEND_IPI, vector, BIT_ULL(vp));
return hv_result_success(status);
static void hv_send_ipi_mask(const struct cpumask *mask, int vector)
{
- if (!__send_ipi_mask(mask, vector))
+ if (!__send_ipi_mask(mask, vector, false))
orig_apic.send_IPI_mask(mask, vector);
}
static void hv_send_ipi_mask_allbutself(const struct cpumask *mask, int vector)
{
- unsigned int this_cpu = smp_processor_id();
- struct cpumask new_mask;
- const struct cpumask *local_mask;
-
- cpumask_copy(&new_mask, mask);
- cpumask_clear_cpu(this_cpu, &new_mask);
- local_mask = &new_mask;
- if (!__send_ipi_mask(local_mask, vector))
+ if (!__send_ipi_mask(mask, vector, true))
orig_apic.send_IPI_mask_allbutself(mask, vector);
}
static void hv_send_ipi_all(int vector)
{
- if (!__send_ipi_mask(cpu_online_mask, vector))
+ if (!__send_ipi_mask(cpu_online_mask, vector, false))
orig_apic.send_IPI_all(vector);
}
struct kvm_page_track_notifier_node *node);
};
-void kvm_page_track_init(struct kvm *kvm);
+int kvm_page_track_init(struct kvm *kvm);
void kvm_page_track_cleanup(struct kvm *kvm);
void kvm_page_track_free_memslot(struct kvm_memory_slot *slot);
#ifndef _ASM_X86_PKEYS_H
#define _ASM_X86_PKEYS_H
-#define ARCH_DEFAULT_PKEY 0
-
/*
* If more than 16 keys are ever supported, a thorough audit
* will be necessary to ensure that the types that store key
{
const struct { char _[64]; } *__src = src;
struct { char _[64]; } __iomem *__dst = dst;
- int zf;
+ bool zf;
/*
* ENQCMDS %(rdx), rax
unsigned int __gu_low, __gu_high; \
const unsigned int __user *__gu_ptr; \
__gu_ptr = (const void __user *)(ptr); \
- __get_user_asm(__gu_low, ptr, "l", "=r", label); \
- __get_user_asm(__gu_high, ptr+1, "l", "=r", label); \
+ __get_user_asm(__gu_low, __gu_ptr, "l", "=r", label); \
+ __get_user_asm(__gu_high, __gu_ptr+1, "l", "=r", label); \
(x) = ((unsigned long long)__gu_high << 32) | __gu_low; \
} while (0)
#else
#define _ASM_X86_SWIOTLB_XEN_H
#ifdef CONFIG_SWIOTLB_XEN
-extern int xen_swiotlb;
extern int __init pci_xen_swiotlb_detect(void);
-extern void __init pci_xen_swiotlb_init(void);
extern int pci_xen_swiotlb_init_late(void);
#else
-#define xen_swiotlb (0)
-static inline int __init pci_xen_swiotlb_detect(void) { return 0; }
-static inline void __init pci_xen_swiotlb_init(void) { }
+#define pci_xen_swiotlb_detect NULL
static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; }
#endif
static void kill_me_now(struct callback_head *ch)
{
+ struct task_struct *p = container_of(ch, struct task_struct, mce_kill_me);
+
+ p->mce_count = 0;
force_sig(SIGBUS);
}
int flags = MF_ACTION_REQUIRED;
int ret;
+ p->mce_count = 0;
pr_err("Uncorrected hardware memory error in user-access at %llx", p->mce_addr);
if (!p->mce_ripv)
}
}
-static void queue_task_work(struct mce *m, int kill_current_task)
+static void queue_task_work(struct mce *m, char *msg, int kill_current_task)
{
- current->mce_addr = m->addr;
- current->mce_kflags = m->kflags;
- current->mce_ripv = !!(m->mcgstatus & MCG_STATUS_RIPV);
- current->mce_whole_page = whole_page(m);
+ int count = ++current->mce_count;
- if (kill_current_task)
- current->mce_kill_me.func = kill_me_now;
- else
- current->mce_kill_me.func = kill_me_maybe;
+ /* First call, save all the details */
+ if (count == 1) {
+ current->mce_addr = m->addr;
+ current->mce_kflags = m->kflags;
+ current->mce_ripv = !!(m->mcgstatus & MCG_STATUS_RIPV);
+ current->mce_whole_page = whole_page(m);
+
+ if (kill_current_task)
+ current->mce_kill_me.func = kill_me_now;
+ else
+ current->mce_kill_me.func = kill_me_maybe;
+ }
+
+ /* Ten is likely overkill. Don't expect more than two faults before task_work() */
+ if (count > 10)
+ mce_panic("Too many consecutive machine checks while accessing user data", m, msg);
+
+ /* Second or later call, make sure page address matches the one from first call */
+ if (count > 1 && (current->mce_addr >> PAGE_SHIFT) != (m->addr >> PAGE_SHIFT))
+ mce_panic("Consecutive machine checks to different user pages", m, msg);
+
+ /* Do not call task_work_add() more than once */
+ if (count > 1)
+ return;
task_work_add(current, ¤t->mce_kill_me, TWA_RESUME);
}
/* If this triggers there is no way to recover. Die hard. */
BUG_ON(!on_thread_stack() || !user_mode(regs));
- queue_task_work(&m, kill_current_task);
+ queue_task_work(&m, msg, kill_current_task);
} else {
/*
}
if (m.kflags & MCE_IN_KERNEL_COPYIN)
- queue_task_work(&m, kill_current_task);
+ queue_task_work(&m, msg, kill_current_task);
}
out:
mce_wrmsrl(MSR_IA32_MCG_STATUS, 0);
x86_init.oem.arch_setup();
+ /*
+ * Do some memory reservations *before* memory is added to memblock, so
+ * memblock allocations won't overwrite it.
+ *
+ * After this point, everything still needed from the boot loader or
+ * firmware or kernel text should be early reserved or marked not RAM in
+ * e820. All other memory is free game.
+ *
+ * This call needs to happen before e820__memory_setup() which calls the
+ * xen_memory_setup() on Xen dom0 which relies on the fact that those
+ * early reservations have happened already.
+ */
+ early_reserve_memory();
+
iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1;
e820__memory_setup();
parse_setup_data();
parse_early_param();
- /*
- * Do some memory reservations *before* memory is added to
- * memblock, so memblock allocations won't overwrite it.
- * Do it after early param, so we could get (unlikely) panic from
- * serial.
- *
- * After this point everything still needed from the boot loader or
- * firmware or kernel text should be early reserved or marked not
- * RAM in e820. All other memory is free game.
- */
- early_reserve_memory();
-
#ifdef CONFIG_MEMORY_HOTPLUG
/*
* Memory used by the kernel cannot be hot-removed because Linux
static void __init pcpu_fc_free(void *ptr, size_t size)
{
- memblock_free(__pa(ptr), size);
+ memblock_free_ptr(ptr, size);
}
static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
u64 cr4 = ctxt->ops->get_cr(ctxt, 4);
if (cr4 & X86_CR4_TSD && ctxt->ops->cpl(ctxt))
- return emulate_ud(ctxt);
+ return emulate_gp(ctxt, 0);
return X86EMUL_CONTINUE;
}
for (i = 0; i < ARRAY_SIZE(hv_vcpu->stimer); i++)
stimer_init(&hv_vcpu->stimer[i], i);
- hv_vcpu->vp_index = kvm_vcpu_get_idx(vcpu);
+ hv_vcpu->vp_index = vcpu->vcpu_idx;
return 0;
}
switch (msr) {
case HV_X64_MSR_VP_INDEX: {
struct kvm_hv *hv = to_kvm_hv(vcpu->kvm);
- int vcpu_idx = kvm_vcpu_get_idx(vcpu);
u32 new_vp_index = (u32)data;
if (!host || new_vp_index >= KVM_MAX_VCPUS)
* VP index is changing, adjust num_mismatched_vp_indexes if
* it now matches or no longer matches vcpu_idx.
*/
- if (hv_vcpu->vp_index == vcpu_idx)
+ if (hv_vcpu->vp_index == vcpu->vcpu_idx)
atomic_inc(&hv->num_mismatched_vp_indexes);
- else if (new_vp_index == vcpu_idx)
+ else if (new_vp_index == vcpu->vcpu_idx)
atomic_dec(&hv->num_mismatched_vp_indexes);
hv_vcpu->vp_index = new_vp_index;
{
struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu);
- return hv_vcpu ? hv_vcpu->vp_index : kvm_vcpu_get_idx(vcpu);
+ return hv_vcpu ? hv_vcpu->vp_index : vcpu->vcpu_idx;
}
int kvm_hv_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host);
unsigned index;
bool mask_before, mask_after;
union kvm_ioapic_redirect_entry *e;
- unsigned long vcpu_bitmap;
int old_remote_irr, old_delivery_status, old_dest_id, old_dest_mode;
+ DECLARE_BITMAP(vcpu_bitmap, KVM_MAX_VCPUS);
switch (ioapic->ioregsel) {
case IOAPIC_REG_VERSION:
irq.shorthand = APIC_DEST_NOSHORT;
irq.dest_id = e->fields.dest_id;
irq.msi_redir_hint = false;
- bitmap_zero(&vcpu_bitmap, 16);
+ bitmap_zero(vcpu_bitmap, KVM_MAX_VCPUS);
kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq,
- &vcpu_bitmap);
+ vcpu_bitmap);
if (old_dest_mode != e->fields.dest_mode ||
old_dest_id != e->fields.dest_id) {
/*
kvm_lapic_irq_dest_mode(
!!e->fields.dest_mode);
kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq,
- &vcpu_bitmap);
+ vcpu_bitmap);
}
kvm_make_scan_ioapic_request_mask(ioapic->kvm,
- &vcpu_bitmap);
+ vcpu_bitmap);
} else {
kvm_make_scan_ioapic_request(ioapic->kvm);
}
} while (!sp->unsync_children);
}
-static void mmu_sync_children(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *parent)
+static int mmu_sync_children(struct kvm_vcpu *vcpu,
+ struct kvm_mmu_page *parent, bool can_yield)
{
int i;
struct kvm_mmu_page *sp;
}
if (need_resched() || rwlock_needbreak(&vcpu->kvm->mmu_lock)) {
kvm_mmu_flush_or_zap(vcpu, &invalid_list, false, flush);
+ if (!can_yield) {
+ kvm_make_request(KVM_REQ_MMU_SYNC, vcpu);
+ return -EINTR;
+ }
+
cond_resched_rwlock_write(&vcpu->kvm->mmu_lock);
flush = false;
}
}
kvm_mmu_flush_or_zap(vcpu, &invalid_list, false, flush);
+ return 0;
}
static void __clear_sp_write_flooding_count(struct kvm_mmu_page *sp)
kvm_make_request(KVM_REQ_TLB_FLUSH_CURRENT, vcpu);
}
- if (sp->unsync_children)
- kvm_make_request(KVM_REQ_MMU_SYNC, vcpu);
-
__clear_sp_write_flooding_count(sp);
trace_get_page:
write_lock(&vcpu->kvm->mmu_lock);
kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
- mmu_sync_children(vcpu, sp);
+ mmu_sync_children(vcpu, sp, true);
kvm_mmu_audit(vcpu, AUDIT_POST_SYNC);
write_unlock(&vcpu->kvm->mmu_lock);
if (IS_VALID_PAE_ROOT(root)) {
root &= PT64_BASE_ADDR_MASK;
sp = to_shadow_page(root);
- mmu_sync_children(vcpu, sp);
+ mmu_sync_children(vcpu, sp, true);
}
}
cleanup_srcu_struct(&head->track_srcu);
}
-void kvm_page_track_init(struct kvm *kvm)
+int kvm_page_track_init(struct kvm *kvm)
{
struct kvm_page_track_notifier_head *head;
head = &kvm->arch.track_notifier_head;
- init_srcu_struct(&head->track_srcu);
INIT_HLIST_HEAD(&head->track_notifier_list);
+ return init_srcu_struct(&head->track_srcu);
}
/*
if (!is_shadow_present_pte(*it.sptep)) {
table_gfn = gw->table_gfn[it.level - 2];
access = gw->pt_access[it.level - 2];
- sp = kvm_mmu_get_page(vcpu, table_gfn, addr, it.level-1,
- false, access);
+ sp = kvm_mmu_get_page(vcpu, table_gfn, addr,
+ it.level-1, false, access);
+ /*
+ * We must synchronize the pagetable before linking it
+ * because the guest doesn't need to flush tlb when
+ * the gpte is changed from non-present to present.
+ * Otherwise, the guest may use the wrong mapping.
+ *
+ * For PG_LEVEL_4K, kvm_mmu_get_page() has already
+ * synchronized it transiently via kvm_sync_page().
+ *
+ * For higher level pagetable, we synchronize it via
+ * the slower mmu_sync_children(). If it needs to
+ * break, some progress has been made; return
+ * RET_PF_RETRY and retry on the next #PF.
+ * KVM_REQ_MMU_SYNC is not necessary but it
+ * expedites the process.
+ */
+ if (sp->unsync_children &&
+ mmu_sync_children(vcpu, sp, false))
+ return RET_PF_RETRY;
}
/*
* Using the cached information from sp->gfns is safe because:
* - The spte has a reference to the struct page, so the pfn for a given gfn
* can't change unless all sptes pointing to it are nuked first.
- *
- * Note:
- * We should flush all tlbs if spte is dropped even though guest is
- * responsible for it. Since if we don't, kvm_mmu_notifier_invalidate_page
- * and kvm_mmu_notifier_invalidate_range_start detect the mapping page isn't
- * used by guest then tlbs are not flushed, so guest is allowed to access the
- * freed pages.
- * And we increase kvm->tlbs_dirty to delay tlbs flush in this case.
*/
static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
{
return 0;
if (FNAME(prefetch_invalid_gpte)(vcpu, sp, &sp->spt[i], gpte)) {
- /*
- * Update spte before increasing tlbs_dirty to make
- * sure no tlb flush is lost after spte is zapped; see
- * the comments in kvm_flush_remote_tlbs().
- */
- smp_wmb();
- vcpu->kvm->tlbs_dirty++;
+ set_spte_ret |= SET_SPTE_NEED_REMOTE_TLB_FLUSH;
continue;
}
if (gfn != sp->gfns[i]) {
drop_spte(vcpu->kvm, &sp->spt[i]);
- /*
- * The same as above where we are doing
- * prefetch_invalid_gpte().
- */
- smp_wmb();
- vcpu->kvm->tlbs_dirty++;
+ set_spte_ret |= SET_SPTE_NEED_REMOTE_TLB_FLUSH;
continue;
}
(svm->nested.ctl.int_ctl & int_ctl_vmcb12_bits) |
(svm->vmcb01.ptr->control.int_ctl & int_ctl_vmcb01_bits);
- svm->vmcb->control.virt_ext = svm->nested.ctl.virt_ext;
svm->vmcb->control.int_vector = svm->nested.ctl.int_vector;
svm->vmcb->control.int_state = svm->nested.ctl.int_state;
svm->vmcb->control.event_inj = svm->nested.ctl.event_inj;
}
int enter_svm_guest_mode(struct kvm_vcpu *vcpu, u64 vmcb12_gpa,
- struct vmcb *vmcb12)
+ struct vmcb *vmcb12, bool from_vmrun)
{
struct vcpu_svm *svm = to_svm(vcpu);
int ret;
nested_vmcb02_prepare_save(svm, vmcb12);
ret = nested_svm_load_cr3(&svm->vcpu, vmcb12->save.cr3,
- nested_npt_enabled(svm), true);
+ nested_npt_enabled(svm), from_vmrun);
if (ret)
return ret;
if (!npt_enabled)
vcpu->arch.mmu->inject_page_fault = svm_inject_page_fault_nested;
+ if (!from_vmrun)
+ kvm_make_request(KVM_REQ_GET_NESTED_STATE_PAGES, vcpu);
+
svm_set_gif(svm, true);
return 0;
svm->nested.nested_run_pending = 1;
- if (enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12))
+ if (enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12, true))
goto out_exit_err;
if (nested_svm_vmrun_msrpm(svm))
return 0;
}
-static int sev_launch_update_vmsa(struct kvm *kvm, struct kvm_sev_cmd *argp)
+static int __sev_launch_update_vmsa(struct kvm *kvm, struct kvm_vcpu *vcpu,
+ int *error)
{
- struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
struct sev_data_launch_update_vmsa vmsa;
+ struct vcpu_svm *svm = to_svm(vcpu);
+ int ret;
+
+ /* Perform some pre-encryption checks against the VMSA */
+ ret = sev_es_sync_vmsa(svm);
+ if (ret)
+ return ret;
+
+ /*
+ * The LAUNCH_UPDATE_VMSA command will perform in-place encryption of
+ * the VMSA memory content (i.e it will write the same memory region
+ * with the guest's key), so invalidate it first.
+ */
+ clflush_cache_range(svm->vmsa, PAGE_SIZE);
+
+ vmsa.reserved = 0;
+ vmsa.handle = to_kvm_svm(kvm)->sev_info.handle;
+ vmsa.address = __sme_pa(svm->vmsa);
+ vmsa.len = PAGE_SIZE;
+ return sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_VMSA, &vmsa, error);
+}
+
+static int sev_launch_update_vmsa(struct kvm *kvm, struct kvm_sev_cmd *argp)
+{
struct kvm_vcpu *vcpu;
int i, ret;
if (!sev_es_guest(kvm))
return -ENOTTY;
- vmsa.reserved = 0;
-
kvm_for_each_vcpu(i, vcpu, kvm) {
- struct vcpu_svm *svm = to_svm(vcpu);
-
- /* Perform some pre-encryption checks against the VMSA */
- ret = sev_es_sync_vmsa(svm);
+ ret = mutex_lock_killable(&vcpu->mutex);
if (ret)
return ret;
- /*
- * The LAUNCH_UPDATE_VMSA command will perform in-place
- * encryption of the VMSA memory content (i.e it will write
- * the same memory region with the guest's key), so invalidate
- * it first.
- */
- clflush_cache_range(svm->vmsa, PAGE_SIZE);
+ ret = __sev_launch_update_vmsa(kvm, vcpu, &argp->error);
- vmsa.handle = sev->handle;
- vmsa.address = __sme_pa(svm->vmsa);
- vmsa.len = PAGE_SIZE;
- ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_VMSA, &vmsa,
- &argp->error);
+ mutex_unlock(&vcpu->mutex);
if (ret)
return ret;
-
- svm->vcpu.arch.guest_state_protected = true;
}
return 0;
/* Bind ASID to this guest */
ret = sev_bind_asid(kvm, start.handle, error);
- if (ret)
+ if (ret) {
+ sev_decommission(start.handle);
goto e_free_session;
+ }
params.handle = start.handle;
if (copy_to_user((void __user *)(uintptr_t)argp->data,
/* Pin guest memory */
guest_page = sev_pin_memory(kvm, params.guest_uaddr & PAGE_MASK,
- PAGE_SIZE, &n, 0);
+ PAGE_SIZE, &n, 1);
if (IS_ERR(guest_page)) {
ret = PTR_ERR(guest_page);
goto e_free_trans;
return sev_issue_cmd(kvm, SEV_CMD_RECEIVE_FINISH, &data, &argp->error);
}
+static bool cmd_allowed_from_miror(u32 cmd_id)
+{
+ /*
+ * Allow mirrors VM to call KVM_SEV_LAUNCH_UPDATE_VMSA to enable SEV-ES
+ * active mirror VMs. Also allow the debugging and status commands.
+ */
+ if (cmd_id == KVM_SEV_LAUNCH_UPDATE_VMSA ||
+ cmd_id == KVM_SEV_GUEST_STATUS || cmd_id == KVM_SEV_DBG_DECRYPT ||
+ cmd_id == KVM_SEV_DBG_ENCRYPT)
+ return true;
+
+ return false;
+}
+
int svm_mem_enc_op(struct kvm *kvm, void __user *argp)
{
struct kvm_sev_cmd sev_cmd;
mutex_lock(&kvm->lock);
- /* enc_context_owner handles all memory enc operations */
- if (is_mirroring_enc_context(kvm)) {
+ /* Only the enc_context_owner handles some memory enc operations. */
+ if (is_mirroring_enc_context(kvm) &&
+ !cmd_allowed_from_miror(sev_cmd.id)) {
r = -EINVAL;
goto out;
}
{
struct file *source_kvm_file;
struct kvm *source_kvm;
- struct kvm_sev_info *mirror_sev;
- unsigned int asid;
+ struct kvm_sev_info source_sev, *mirror_sev;
int ret;
source_kvm_file = fget(source_fd);
goto e_source_unlock;
}
- asid = to_kvm_svm(source_kvm)->sev_info.asid;
+ memcpy(&source_sev, &to_kvm_svm(source_kvm)->sev_info,
+ sizeof(source_sev));
/*
* The mirror kvm holds an enc_context_owner ref so its asid can't
/* Set enc_context_owner and copy its encryption context over */
mirror_sev = &to_kvm_svm(kvm)->sev_info;
mirror_sev->enc_context_owner = source_kvm;
- mirror_sev->asid = asid;
mirror_sev->active = true;
+ mirror_sev->asid = source_sev.asid;
+ mirror_sev->fd = source_sev.fd;
+ mirror_sev->es_active = source_sev.es_active;
+ mirror_sev->handle = source_sev.handle;
+ /*
+ * Do not copy ap_jump_table. Since the mirror does not share the same
+ * KVM contexts as the original, and they may have different
+ * memory-views.
+ */
mutex_unlock(&kvm->lock);
return 0;
svm->vmcb->control.int_ctl |= svm->nested.ctl.int_ctl &
V_IRQ_INJECTION_BITS_MASK;
+
+ svm->vmcb->control.int_vector = svm->nested.ctl.int_vector;
}
vmcb_mark_dirty(svm->vmcb, VMCB_INTR);
if (error_code)
goto reinject;
+ /* All SVM instructions expect page aligned RAX */
+ if (svm->vmcb->save.rax & ~PAGE_MASK)
+ goto reinject;
+
/* Decode the instruction for usage later */
if (x86_decode_emulated_instruction(vcpu, 0, NULL, 0) != EMULATION_OK)
goto reinject;
struct kvm_host_map map_save;
int ret;
- if (is_guest_mode(vcpu)) {
- /* FED8h - SVM Guest */
- put_smstate(u64, smstate, 0x7ed8, 1);
- /* FEE0h - SVM Guest VMCB Physical Address */
- put_smstate(u64, smstate, 0x7ee0, svm->nested.vmcb12_gpa);
+ if (!is_guest_mode(vcpu))
+ return 0;
- svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX];
- svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
- svm->vmcb->save.rip = vcpu->arch.regs[VCPU_REGS_RIP];
+ /* FED8h - SVM Guest */
+ put_smstate(u64, smstate, 0x7ed8, 1);
+ /* FEE0h - SVM Guest VMCB Physical Address */
+ put_smstate(u64, smstate, 0x7ee0, svm->nested.vmcb12_gpa);
- ret = nested_svm_vmexit(svm);
- if (ret)
- return ret;
+ svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX];
+ svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
+ svm->vmcb->save.rip = vcpu->arch.regs[VCPU_REGS_RIP];
- /*
- * KVM uses VMCB01 to store L1 host state while L2 runs but
- * VMCB01 is going to be used during SMM and thus the state will
- * be lost. Temporary save non-VMLOAD/VMSAVE state to the host save
- * area pointed to by MSR_VM_HSAVE_PA. APM guarantees that the
- * format of the area is identical to guest save area offsetted
- * by 0x400 (matches the offset of 'struct vmcb_save_area'
- * within 'struct vmcb'). Note: HSAVE area may also be used by
- * L1 hypervisor to save additional host context (e.g. KVM does
- * that, see svm_prepare_guest_switch()) which must be
- * preserved.
- */
- if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr),
- &map_save) == -EINVAL)
- return 1;
+ ret = nested_svm_vmexit(svm);
+ if (ret)
+ return ret;
- BUILD_BUG_ON(offsetof(struct vmcb, save) != 0x400);
+ /*
+ * KVM uses VMCB01 to store L1 host state while L2 runs but
+ * VMCB01 is going to be used during SMM and thus the state will
+ * be lost. Temporary save non-VMLOAD/VMSAVE state to the host save
+ * area pointed to by MSR_VM_HSAVE_PA. APM guarantees that the
+ * format of the area is identical to guest save area offsetted
+ * by 0x400 (matches the offset of 'struct vmcb_save_area'
+ * within 'struct vmcb'). Note: HSAVE area may also be used by
+ * L1 hypervisor to save additional host context (e.g. KVM does
+ * that, see svm_prepare_guest_switch()) which must be
+ * preserved.
+ */
+ if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr),
+ &map_save) == -EINVAL)
+ return 1;
- svm_copy_vmrun_state(map_save.hva + 0x400,
- &svm->vmcb01.ptr->save);
+ BUILD_BUG_ON(offsetof(struct vmcb, save) != 0x400);
- kvm_vcpu_unmap(vcpu, &map_save, true);
- }
+ svm_copy_vmrun_state(map_save.hva + 0x400,
+ &svm->vmcb01.ptr->save);
+
+ kvm_vcpu_unmap(vcpu, &map_save, true);
return 0;
}
{
struct vcpu_svm *svm = to_svm(vcpu);
struct kvm_host_map map, map_save;
- int ret = 0;
+ u64 saved_efer, vmcb12_gpa;
+ struct vmcb *vmcb12;
+ int ret;
- if (guest_cpuid_has(vcpu, X86_FEATURE_LM)) {
- u64 saved_efer = GET_SMSTATE(u64, smstate, 0x7ed0);
- u64 guest = GET_SMSTATE(u64, smstate, 0x7ed8);
- u64 vmcb12_gpa = GET_SMSTATE(u64, smstate, 0x7ee0);
- struct vmcb *vmcb12;
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_LM))
+ return 0;
- if (guest) {
- if (!guest_cpuid_has(vcpu, X86_FEATURE_SVM))
- return 1;
+ /* Non-zero if SMI arrived while vCPU was in guest mode. */
+ if (!GET_SMSTATE(u64, smstate, 0x7ed8))
+ return 0;
- if (!(saved_efer & EFER_SVME))
- return 1;
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_SVM))
+ return 1;
- if (kvm_vcpu_map(vcpu,
- gpa_to_gfn(vmcb12_gpa), &map) == -EINVAL)
- return 1;
+ saved_efer = GET_SMSTATE(u64, smstate, 0x7ed0);
+ if (!(saved_efer & EFER_SVME))
+ return 1;
- if (svm_allocate_nested(svm))
- return 1;
+ vmcb12_gpa = GET_SMSTATE(u64, smstate, 0x7ee0);
+ if (kvm_vcpu_map(vcpu, gpa_to_gfn(vmcb12_gpa), &map) == -EINVAL)
+ return 1;
- vmcb12 = map.hva;
+ ret = 1;
+ if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), &map_save) == -EINVAL)
+ goto unmap_map;
- nested_load_control_from_vmcb12(svm, &vmcb12->control);
+ if (svm_allocate_nested(svm))
+ goto unmap_save;
- ret = enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12);
- kvm_vcpu_unmap(vcpu, &map, true);
+ /*
+ * Restore L1 host state from L1 HSAVE area as VMCB01 was
+ * used during SMM (see svm_enter_smm())
+ */
- /*
- * Restore L1 host state from L1 HSAVE area as VMCB01 was
- * used during SMM (see svm_enter_smm())
- */
- if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr),
- &map_save) == -EINVAL)
- return 1;
+ svm_copy_vmrun_state(&svm->vmcb01.ptr->save, map_save.hva + 0x400);
- svm_copy_vmrun_state(&svm->vmcb01.ptr->save,
- map_save.hva + 0x400);
+ /*
+ * Enter the nested guest now
+ */
- kvm_vcpu_unmap(vcpu, &map_save, true);
- }
- }
+ vmcb12 = map.hva;
+ nested_load_control_from_vmcb12(svm, &vmcb12->control);
+ ret = enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12, false);
+unmap_save:
+ kvm_vcpu_unmap(vcpu, &map_save, true);
+unmap_map:
+ kvm_vcpu_unmap(vcpu, &map, true);
return ret;
}
return vmcb_is_intercept(&svm->nested.ctl, INTERCEPT_NMI);
}
-int enter_svm_guest_mode(struct kvm_vcpu *vcpu, u64 vmcb_gpa, struct vmcb *vmcb12);
+int enter_svm_guest_mode(struct kvm_vcpu *vcpu,
+ u64 vmcb_gpa, struct vmcb *vmcb12, bool from_vmrun);
void svm_leave_nested(struct vcpu_svm *svm);
void svm_free_nested(struct vcpu_svm *svm);
int svm_allocate_nested(struct vcpu_svm *svm);
switch (msr_index) {
case MSR_IA32_VMX_EXIT_CTLS:
case MSR_IA32_VMX_TRUE_EXIT_CTLS:
- ctl_high &= ~VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL;
+ ctl_high &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
break;
case MSR_IA32_VMX_ENTRY_CTLS:
case MSR_IA32_VMX_TRUE_ENTRY_CTLS:
- ctl_high &= ~VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL;
+ ctl_high &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
break;
case MSR_IA32_VMX_PROCBASED_CTLS2:
- ctl_high &= ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+ ctl_high &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
+ break;
+ case MSR_IA32_VMX_PINBASED_CTLS:
+ ctl_high &= ~EVMCS1_UNSUPPORTED_PINCTRL;
+ break;
+ case MSR_IA32_VMX_VMFUNC:
+ ctl_low &= ~EVMCS1_UNSUPPORTED_VMFUNC;
break;
}
* Guest state is invalid and unrestricted guest is disabled,
* which means L1 attempted VMEntry to L2 with invalid state.
* Fail the VMEntry.
+ *
+ * However when force loading the guest state (SMM exit or
+ * loading nested state after migration, it is possible to
+ * have invalid guest state now, which will be later fixed by
+ * restoring L2 register state
*/
- if (CC(!vmx_guest_state_valid(vcpu))) {
+ if (CC(from_vmentry && !vmx_guest_state_valid(vcpu))) {
*entry_failure_code = ENTRY_FAIL_DEFAULT;
return -EINVAL;
}
if (nested_vmx_load_msr(vcpu, vmcs12->vm_exit_msr_load_addr,
vmcs12->vm_exit_msr_load_count))
nested_vmx_abort(vcpu, VMX_ABORT_LOAD_HOST_MSR_FAIL);
+
+ to_vmx(vcpu)->emulation_required = vmx_emulation_required(vcpu);
}
static inline u64 nested_vmx_get_vmcs01_guest_efer(struct vcpu_vmx *vmx)
return -ENOMEM;
}
-/*
- * Emulate the VMXON instruction.
- * Currently, we just remember that VMX is active, and do not save or even
- * inspect the argument to VMXON (the so-called "VMXON pointer") because we
- * do not currently need to store anything in that guest-allocated memory
- * region. Consequently, VMCLEAR and VMPTRLD also do not verify that the their
- * argument is different from the VMXON pointer (which the spec says they do).
- */
+/* Emulate the VMXON instruction. */
static int handle_vmon(struct kvm_vcpu *vcpu)
{
int ret;
case EXIT_REASON_VMFUNC:
/* VM functions are emulated through L2->L0 vmexits. */
return true;
+ case EXIT_REASON_BUS_LOCK:
+ /*
+ * At present, bus lock VM exit is never exposed to L1.
+ * Handle L2's bus locks in L0 directly.
+ */
+ return true;
default:
break;
}
vmx_prepare_switch_to_host(to_vmx(vcpu));
}
-static bool emulation_required(struct kvm_vcpu *vcpu)
+bool vmx_emulation_required(struct kvm_vcpu *vcpu)
{
return emulate_invalid_guest_state && !vmx_guest_state_valid(vcpu);
}
vmcs_writel(GUEST_RFLAGS, rflags);
if ((old_rflags ^ vmx->rflags) & X86_EFLAGS_VM)
- vmx->emulation_required = emulation_required(vcpu);
+ vmx->emulation_required = vmx_emulation_required(vcpu);
}
u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
&msr_info->data))
return 1;
/*
- * Enlightened VMCS v1 doesn't have certain fields, but buggy
- * Hyper-V versions are still trying to use corresponding
- * features when they are exposed. Filter out the essential
- * minimum.
+ * Enlightened VMCS v1 doesn't have certain VMCS fields but
+ * instead of just ignoring the features, different Hyper-V
+ * versions are either trying to use them and fail or do some
+ * sanity checking and refuse to boot. Filter all unsupported
+ * features out.
*/
if (!msr_info->host_initiated &&
vmx->nested.enlightened_vmcs_enabled)
}
/* depends on vcpu->arch.cr0 to be set to a new value */
- vmx->emulation_required = emulation_required(vcpu);
+ vmx->emulation_required = vmx_emulation_required(vcpu);
}
static int vmx_get_max_tdp_level(void)
{
__vmx_set_segment(vcpu, var, seg);
- to_vmx(vcpu)->emulation_required = emulation_required(vcpu);
+ to_vmx(vcpu)->emulation_required = vmx_emulation_required(vcpu);
}
static void vmx_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
vmx->loaded_vmcs->soft_vnmi_blocked))
vmx->loaded_vmcs->entry_time = ktime_get();
- /* Don't enter VMX if guest state is invalid, let the exit handler
- start emulation until we arrive back to a valid state */
- if (vmx->emulation_required)
+ /*
+ * Don't enter VMX if guest state is invalid, let the exit handler
+ * start emulation until we arrive back to a valid state. Synthesize a
+ * consistency check VM-Exit due to invalid guest state and bail.
+ */
+ if (unlikely(vmx->emulation_required)) {
+
+ /* We don't emulate invalid state of a nested guest */
+ vmx->fail = is_guest_mode(vcpu);
+
+ vmx->exit_reason.full = EXIT_REASON_INVALID_STATE;
+ vmx->exit_reason.failed_vmentry = 1;
+ kvm_register_mark_available(vcpu, VCPU_EXREG_EXIT_INFO_1);
+ vmx->exit_qualification = ENTRY_FAIL_DEFAULT;
+ kvm_register_mark_available(vcpu, VCPU_EXREG_EXIT_INFO_2);
+ vmx->exit_intr_info = 0;
return EXIT_FASTPATH_NONE;
+ }
trace_kvm_entry(vcpu);
* only loaded into hardware when necessary, e.g. SYSCALL #UDs outside
* of 64-bit mode or if EFER.SCE=1, thus the SYSCALL MSRs don't need to
* be loaded into hardware if those conditions aren't met.
- * nr_active_uret_msrs tracks the number of MSRs that need to be loaded
- * into hardware when running the guest. guest_uret_msrs[] is resorted
- * whenever the number of "active" uret MSRs is modified.
*/
struct vmx_uret_msr guest_uret_msrs[MAX_NR_USER_RETURN_MSRS];
- int nr_active_uret_msrs;
bool guest_uret_msrs_loaded;
#ifdef CONFIG_X86_64
u64 msr_host_kernel_gs_base;
void vmx_set_host_fs_gs(struct vmcs_host_state *host, u16 fs_sel, u16 gs_sel,
unsigned long fs_base, unsigned long gs_base);
int vmx_get_cpl(struct kvm_vcpu *vcpu);
+bool vmx_emulation_required(struct kvm_vcpu *vcpu);
unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu);
void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu);
MSR_ARCH_PERFMON_EVENTSEL0 + 12, MSR_ARCH_PERFMON_EVENTSEL0 + 13,
MSR_ARCH_PERFMON_EVENTSEL0 + 14, MSR_ARCH_PERFMON_EVENTSEL0 + 15,
MSR_ARCH_PERFMON_EVENTSEL0 + 16, MSR_ARCH_PERFMON_EVENTSEL0 + 17,
+
+ MSR_K7_EVNTSEL0, MSR_K7_EVNTSEL1, MSR_K7_EVNTSEL2, MSR_K7_EVNTSEL3,
+ MSR_K7_PERFCTR0, MSR_K7_PERFCTR1, MSR_K7_PERFCTR2, MSR_K7_PERFCTR3,
+ MSR_F15H_PERF_CTL0, MSR_F15H_PERF_CTL1, MSR_F15H_PERF_CTL2,
+ MSR_F15H_PERF_CTL3, MSR_F15H_PERF_CTL4, MSR_F15H_PERF_CTL5,
+ MSR_F15H_PERF_CTR0, MSR_F15H_PERF_CTR1, MSR_F15H_PERF_CTR2,
+ MSR_F15H_PERF_CTR3, MSR_F15H_PERF_CTR4, MSR_F15H_PERF_CTR5,
};
static u32 msrs_to_save[ARRAY_SIZE(msrs_to_save_all)];
offsetof(struct compat_vcpu_info, time));
if (vcpu->xen.vcpu_time_info_set)
kvm_setup_pvclock_page(v, &vcpu->xen.vcpu_time_info_cache, 0);
- if (v == kvm_get_vcpu(v->kvm, 0))
+ if (!v->vcpu_idx)
kvm_hv_setup_tsc_page(v->kvm, &vcpu->hv_clock);
return 0;
}
/* Process a latched INIT or SMI, if any. */
kvm_make_request(KVM_REQ_EVENT, vcpu);
+
+ /*
+ * Even if KVM_SET_SREGS2 loaded PDPTRs out of band,
+ * on SMM exit we still need to reload them from
+ * guest memory
+ */
+ vcpu->arch.pdptrs_from_userspace = false;
}
kvm_mmu_reset_context(vcpu);
int r;
vcpu->arch.last_vmentry_cpu = -1;
+ vcpu->arch.regs_avail = ~0;
+ vcpu->arch.regs_dirty = ~0;
if (!irqchip_in_kernel(vcpu->kvm) || kvm_vcpu_is_reset_bsp(vcpu))
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
kvm_set_rflags(vcpu, X86_EFLAGS_FIXED);
kvm_rip_write(vcpu, 0xfff0);
+ vcpu->arch.cr3 = 0;
+ kvm_register_mark_dirty(vcpu, VCPU_EXREG_CR3);
+
/*
* CR0.CD/NW are set on RESET, preserved on INIT. Note, some versions
* of Intel's SDM list CD/NW as being set on INIT, but they contradict
int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
{
+ int ret;
+
if (type)
return -EINVAL;
+ ret = kvm_page_track_init(kvm);
+ if (ret)
+ return ret;
+
INIT_HLIST_HEAD(&kvm->arch.mask_notifier_list);
INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
INIT_LIST_HEAD(&kvm->arch.zapped_obsolete_pages);
kvm_apicv_init(kvm);
kvm_hv_init_vm(kvm);
- kvm_page_track_init(kvm);
kvm_mmu_init_vm(kvm);
kvm_xen_init_vm(kvm);
((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr)
#define __get_next(t, insn) \
- ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); leXX_to_cpu(t, r); })
+ ({ t r; memcpy(&r, insn->next_byte, sizeof(t)); insn->next_byte += sizeof(t); leXX_to_cpu(t, r); })
#define __peek_nbyte_next(t, insn, n) \
- ({ t r = *(t*)((insn)->next_byte + n); leXX_to_cpu(t, r); })
+ ({ t r; memcpy(&r, (insn)->next_byte + n, sizeof(t)); leXX_to_cpu(t, r); })
#define get_next(t, insn) \
({ if (unlikely(!validate_next(t, insn, 0))) goto err_out; __get_next(t, insn); })
static noinline void
kernelmode_fixup_or_oops(struct pt_regs *regs, unsigned long error_code,
- unsigned long address, int signal, int si_code)
+ unsigned long address, int signal, int si_code,
+ u32 pkey)
{
WARN_ON_ONCE(user_mode(regs));
set_signal_archinfo(address, error_code);
- /* XXX: hwpoison faults will set the wrong code. */
- force_sig_fault(signal, si_code, (void __user *)address);
+ if (si_code == SEGV_PKUERR) {
+ force_sig_pkuerr((void __user *)address, pkey);
+ } else {
+ /* XXX: hwpoison faults will set the wrong code. */
+ force_sig_fault(signal, si_code, (void __user *)address);
+ }
}
/*
struct task_struct *tsk = current;
if (!user_mode(regs)) {
- kernelmode_fixup_or_oops(regs, error_code, address, pkey, si_code);
+ kernelmode_fixup_or_oops(regs, error_code, address,
+ SIGSEGV, si_code, pkey);
return;
}
{
/* Kernel mode? Handle exceptions or die: */
if (!user_mode(regs)) {
- kernelmode_fixup_or_oops(regs, error_code, address, SIGBUS, BUS_ADRERR);
+ kernelmode_fixup_or_oops(regs, error_code, address,
+ SIGBUS, BUS_ADRERR, ARCH_DEFAULT_PKEY);
return;
}
*/
if (!user_mode(regs))
kernelmode_fixup_or_oops(regs, error_code, address,
- SIGBUS, BUS_ADRERR);
+ SIGBUS, BUS_ADRERR,
+ ARCH_DEFAULT_PKEY);
return;
}
return;
if (fatal_signal_pending(current) && !user_mode(regs)) {
- kernelmode_fixup_or_oops(regs, error_code, address, 0, 0);
+ kernelmode_fixup_or_oops(regs, error_code, address,
+ 0, 0, ARCH_DEFAULT_PKEY);
return;
}
/* Kernel mode? Handle exceptions or die: */
if (!user_mode(regs)) {
kernelmode_fixup_or_oops(regs, error_code, address,
- SIGSEGV, SEGV_MAPERR);
+ SIGSEGV, SEGV_MAPERR,
+ ARCH_DEFAULT_PKEY);
return;
}
return 0;
p4d = p4d_offset(pgd, addr);
- if (p4d_none(*p4d))
+ if (!p4d_present(*p4d))
return 0;
pud = pud_offset(p4d, addr);
- if (pud_none(*pud))
+ if (!pud_present(*pud))
return 0;
if (pud_large(*pud))
return pfn_valid(pud_pfn(*pud));
pmd = pmd_offset(pud, addr);
- if (pmd_none(*pmd))
+ if (!pmd_present(*pmd))
return 0;
if (pmd_large(*pmd))
p = early_alloc(PMD_SIZE, nid, false);
if (p && pmd_set_huge(pmd, __pa(p), PAGE_KERNEL))
return;
- else if (p)
- memblock_free(__pa(p), PMD_SIZE);
+ memblock_free_ptr(p, PMD_SIZE);
}
p = early_alloc(PAGE_SIZE, nid, true);
p = early_alloc(PUD_SIZE, nid, false);
if (p && pud_set_huge(pud, __pa(p), PAGE_KERNEL))
return;
- else if (p)
- memblock_free(__pa(p), PUD_SIZE);
+ memblock_free_ptr(p, PUD_SIZE);
}
p = early_alloc(PAGE_SIZE, nid, true);
/* numa_distance could be 1LU marking allocation failure, test cnt */
if (numa_distance_cnt)
- memblock_free(__pa(numa_distance), size);
+ memblock_free_ptr(numa_distance, size);
numa_distance_cnt = 0;
numa_distance = NULL; /* enable table creation */
}
}
/* free the copied physical distance table */
- if (phys_dist)
- memblock_free(__pa(phys_dist), phys_size);
+ memblock_free_ptr(phys_dist, phys_size);
return;
no_emu:
int err = 0;
start = sanitize_phys(start);
- end = sanitize_phys(end);
+
+ /*
+ * The end address passed into this function is exclusive, but
+ * sanitize_phys() expects an inclusive address.
+ */
+ end = sanitize_phys(end - 1) + 1;
if (start >= end) {
WARN(1, "%s failed: [mem %#010Lx-%#010Lx], req %s\n", __func__,
start, end - 1, cattr_name(req_type));
preempt_enable();
}
-static void xen_convert_trap_info(const struct desc_ptr *desc,
- struct trap_info *traps)
+static unsigned xen_convert_trap_info(const struct desc_ptr *desc,
+ struct trap_info *traps, bool full)
{
unsigned in, out, count;
for (in = out = 0; in < count; in++) {
gate_desc *entry = (gate_desc *)(desc->address) + in;
- if (cvt_gate_to_trap(in, entry, &traps[out]))
+ if (cvt_gate_to_trap(in, entry, &traps[out]) || full)
out++;
}
- traps[out].address = 0;
+
+ return out;
}
void xen_copy_trap_info(struct trap_info *traps)
{
const struct desc_ptr *desc = this_cpu_ptr(&idt_desc);
- xen_convert_trap_info(desc, traps);
+ xen_convert_trap_info(desc, traps, true);
}
/* Load a new IDT into Xen. In principle this can be per-CPU, so we
{
static DEFINE_SPINLOCK(lock);
static struct trap_info traps[257];
+ unsigned out;
trace_xen_cpu_load_idt(desc);
memcpy(this_cpu_ptr(&idt_desc), desc, sizeof(idt_desc));
- xen_convert_trap_info(desc, traps);
+ out = xen_convert_trap_info(desc, traps, false);
+ memset(&traps[out], 0, sizeof(traps[0]));
xen_mc_flush();
if (HYPERVISOR_set_trap_table(traps))
x86_platform.legacy.rtc = 1;
}
+static void __init xen_domu_set_legacy_features(void)
+{
+ x86_platform.legacy.rtc = 0;
+}
+
/* First C function to be called on Xen boot */
asmlinkage __visible void __init xen_start_kernel(void)
{
add_preferred_console("xenboot", 0, NULL);
if (pci_xen)
x86_init.pci.arch_init = pci_xen_init;
+ x86_platform.set_legacy_features =
+ xen_domu_set_legacy_features;
} else {
const struct dom0_vga_console_info *info =
(void *)((char *)xen_start_info +
if (pinned) {
struct page *page = pfn_to_page(pfn);
- if (static_branch_likely(&xen_struct_pages_ready))
+ pinned = false;
+ if (static_branch_likely(&xen_struct_pages_ready)) {
+ pinned = PagePinned(page);
SetPagePinned(page);
+ }
xen_mc_batch();
__set_pfn_prot(pfn, PAGE_KERNEL_RO);
- if (level == PT_PTE && USE_SPLIT_PTE_PTLOCKS)
+ if (level == PT_PTE && USE_SPLIT_PTE_PTLOCKS && !pinned)
__pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
xen_mc_issue(PARAVIRT_LAZY_MMU);
#endif
#include <linux/export.h>
-int xen_swiotlb __read_mostly;
+static int xen_swiotlb __read_mostly;
/*
* pci_xen_swiotlb_detect - set xen_swiotlb to 1 if necessary
return xen_swiotlb;
}
-void __init pci_xen_swiotlb_init(void)
+static void __init pci_xen_swiotlb_init(void)
{
if (xen_swiotlb) {
xen_swiotlb_init_early();
gdt = get_cpu_gdt_rw(cpu);
- memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
-
/*
* Bring up the CPU in cpu_bringup_and_idle() with the stack
* pointing just below where pt_regs would be if it were a normal
xen_copy_trap_info(ctxt->trap_ctxt);
- ctxt->ldt_ents = 0;
-
BUG_ON((unsigned long)gdt & ~PAGE_MASK);
gdt_mfn = arbitrary_virt_to_mfn(gdt);
if (!bio_integrity_endio(bio))
return;
- if (bio->bi_bdev)
+ if (bio->bi_bdev && bio_flagged(bio, BIO_TRACKED))
rq_qos_done_bio(bio->bi_bdev->bd_disk->queue, bio);
if (bio->bi_bdev && bio_flagged(bio, BIO_TRACE_COMPLETION)) {
if (preloaded)
radix_tree_preload_end();
- ret = blk_iolatency_init(q);
- if (ret)
- goto err_destroy_all;
-
ret = blk_ioprio_init(q);
if (ret)
goto err_destroy_all;
if (ret)
goto err_destroy_all;
+ ret = blk_iolatency_init(q);
+ if (ret) {
+ blk_throtl_exit(q);
+ goto err_destroy_all;
+ }
+
return 0;
err_destroy_all:
/* alloc failed, nothing's initialized yet, free everything */
spin_lock_irq(&q->queue_lock);
list_for_each_entry(blkg, &q->blkg_list, q_node) {
+ struct blkcg *blkcg = blkg->blkcg;
+
+ spin_lock(&blkcg->lock);
if (blkg->pd[pol->plid]) {
pol->pd_free_fn(blkg->pd[pol->plid]);
blkg->pd[pol->plid] = NULL;
}
+ spin_unlock(&blkcg->lock);
}
spin_unlock_irq(&q->queue_lock);
ret = -ENOMEM;
__clear_bit(pol->plid, q->blkcg_pols);
list_for_each_entry(blkg, &q->blkg_list, q_node) {
+ struct blkcg *blkcg = blkg->blkcg;
+
+ spin_lock(&blkcg->lock);
if (blkg->pd[pol->plid]) {
if (pol->pd_offline_fn)
pol->pd_offline_fn(blkg->pd[pol->plid]);
pol->pd_free_fn(blkg->pd[pol->plid]);
blkg->pd[pol->plid] = NULL;
}
+ spin_unlock(&blkcg->lock);
}
spin_unlock_irq(&q->queue_lock);
*/
void blk_integrity_unregister(struct gendisk *disk)
{
+ struct blk_integrity *bi = &disk->queue->integrity;
+
+ if (!bi->profile)
+ return;
+
+ /* ensure all bios are off the integrity workqueue */
+ blk_flush_integrity();
blk_queue_flag_clear(QUEUE_FLAG_STABLE_WRITES, disk->queue);
- memset(&disk->queue->integrity, 0, sizeof(struct blk_integrity));
+ memset(bi, 0, sizeof(*bi));
}
EXPORT_SYMBOL(blk_integrity_unregister);
spin_lock_irqsave(&tags->lock, flags);
rq = tags->rqs[bitnr];
- if (!rq || !refcount_inc_not_zero(&rq->ref))
+ if (!rq || rq->tag != bitnr || !refcount_inc_not_zero(&rq->ref))
rq = NULL;
spin_unlock_irqrestore(&tags->lock, flags);
return rq;
.llseek = default_llseek,
};
+static void bsg_device_release(struct device *dev)
+{
+ struct bsg_device *bd = container_of(dev, struct bsg_device, device);
+
+ ida_simple_remove(&bsg_minor_ida, MINOR(bd->device.devt));
+ kfree(bd);
+}
+
void bsg_unregister_queue(struct bsg_device *bd)
{
if (bd->queue->kobj.sd)
sysfs_remove_link(&bd->queue->kobj, "bsg");
cdev_device_del(&bd->cdev, &bd->device);
- ida_simple_remove(&bsg_minor_ida, MINOR(bd->device.devt));
- kfree(bd);
+ put_device(&bd->device);
}
EXPORT_SYMBOL_GPL(bsg_unregister_queue);
if (ret < 0) {
if (ret == -ENOSPC)
dev_err(parent, "bsg: too many bsg devices\n");
- goto out_kfree;
+ kfree(bd);
+ return ERR_PTR(ret);
}
bd->device.devt = MKDEV(bsg_major, ret);
bd->device.class = bsg_class;
bd->device.parent = parent;
+ bd->device.release = bsg_device_release;
dev_set_name(&bd->device, "%s", name);
device_initialize(&bd->device);
bd->cdev.owner = THIS_MODULE;
ret = cdev_device_add(&bd->cdev, &bd->device);
if (ret)
- goto out_ida_remove;
+ goto out_put_device;
if (q->kobj.sd) {
ret = sysfs_create_link(&q->kobj, &bd->device.kobj, "bsg");
out_device_del:
cdev_device_del(&bd->cdev, &bd->device);
-out_ida_remove:
- ida_simple_remove(&bsg_minor_ida, MINOR(bd->device.devt));
-out_kfree:
- kfree(bd);
+out_put_device:
+ put_device(&bd->device);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(bsg_register_queue);
#include <linux/task_io_accounting_ops.h>
#include <linux/falloc.h>
#include <linux/suspend.h>
+#include <linux/fs.h>
#include "blk.h"
static struct inode *bdev_file_inode(struct file *file)
static long blkdev_fallocate(struct file *file, int mode, loff_t start,
loff_t len)
{
- struct block_device *bdev = I_BDEV(bdev_file_inode(file));
+ struct inode *inode = bdev_file_inode(file);
+ struct block_device *bdev = I_BDEV(inode);
loff_t end = start + len - 1;
loff_t isize;
int error;
if ((start | len) & (bdev_logical_block_size(bdev) - 1))
return -EINVAL;
+ filemap_invalidate_lock(inode->i_mapping);
+
/* Invalidate the page cache, including dirty pages. */
error = truncate_bdev_range(bdev, file->f_mode, start, end);
if (error)
- return error;
+ goto fail;
switch (mode) {
case FALLOC_FL_ZERO_RANGE:
GFP_KERNEL, 0);
break;
default:
- return -EOPNOTSUPP;
+ error = -EOPNOTSUPP;
}
- if (error)
- return error;
- /*
- * Invalidate the page cache again; if someone wandered in and dirtied
- * a page, we just discard it - userspace has no way of knowing whether
- * the write happened before or after discard completing...
- */
- return truncate_bdev_range(bdev, file->f_mode, start, end);
+ fail:
+ filemap_invalidate_unlock(inode->i_mapping);
+ return error;
}
const struct file_operations def_blk_fops = {
#define should_use_kmap(pfn) page_is_ram(pfn)
#endif
-static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz,
- bool memory)
+static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz)
{
unsigned long pfn;
return NULL;
return (void __iomem __force *)kmap(pfn_to_page(pfn));
} else
- return memory ? acpi_os_memmap(pg_off, pg_sz) :
- acpi_os_ioremap(pg_off, pg_sz);
+ return acpi_os_ioremap(pg_off, pg_sz);
}
static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
}
/**
- * __acpi_os_map_iomem - Get a virtual address for a given physical address range.
+ * acpi_os_map_iomem - Get a virtual address for a given physical address range.
* @phys: Start of the physical address range to map.
* @size: Size of the physical address range to map.
- * @memory: true if remapping memory, false if IO
*
* Look up the given physical address range in the list of existing ACPI memory
* mappings. If found, get a reference to it and return a pointer to it (its
* During early init (when acpi_permanent_mmap has not been set yet) this
* routine simply calls __acpi_map_table() to get the job done.
*/
-static void __iomem __ref
-*__acpi_os_map_iomem(acpi_physical_address phys, acpi_size size, bool memory)
+void __iomem __ref
+*acpi_os_map_iomem(acpi_physical_address phys, acpi_size size)
{
struct acpi_ioremap *map;
void __iomem *virt;
pg_off = round_down(phys, PAGE_SIZE);
pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off;
- virt = acpi_map(phys, size, memory);
+ virt = acpi_map(phys, size);
if (!virt) {
mutex_unlock(&acpi_ioremap_lock);
kfree(map);
mutex_unlock(&acpi_ioremap_lock);
return map->virt + (phys - map->phys);
}
-
-void __iomem *__ref
-acpi_os_map_iomem(acpi_physical_address phys, acpi_size size)
-{
- return __acpi_os_map_iomem(phys, size, false);
-}
EXPORT_SYMBOL_GPL(acpi_os_map_iomem);
void *__ref acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
{
- return (void *)__acpi_os_map_iomem(phys, size, true);
+ return (void *)acpi_os_map_iomem(phys, size);
}
EXPORT_SYMBOL_GPL(acpi_os_map_memory);
}
static void binder_transaction_buffer_release(struct binder_proc *proc,
+ struct binder_thread *thread,
struct binder_buffer *buffer,
binder_size_t failed_at,
bool is_failure)
&proc->alloc, &fd, buffer,
offset, sizeof(fd));
WARN_ON(err);
- if (!err)
+ if (!err) {
binder_deferred_fd_close(fd);
+ /*
+ * Need to make sure the thread goes
+ * back to userspace to complete the
+ * deferred close
+ */
+ if (thread)
+ thread->looper_need_return = true;
+ }
}
} break;
default:
if (reply) {
binder_enqueue_thread_work(thread, tcomplete);
binder_inner_proc_lock(target_proc);
- if (target_thread->is_dead || target_proc->is_frozen) {
- return_error = target_thread->is_dead ?
- BR_DEAD_REPLY : BR_FROZEN_REPLY;
+ if (target_thread->is_dead) {
+ return_error = BR_DEAD_REPLY;
binder_inner_proc_unlock(target_proc);
goto err_dead_proc_or_thread;
}
err_copy_data_failed:
binder_free_txn_fixups(t);
trace_binder_transaction_failed_buffer_release(t->buffer);
- binder_transaction_buffer_release(target_proc, t->buffer,
+ binder_transaction_buffer_release(target_proc, NULL, t->buffer,
buffer_offset, true);
if (target_node)
binder_dec_node_tmpref(target_node);
* Cleanup buffer and free it.
*/
static void
-binder_free_buf(struct binder_proc *proc, struct binder_buffer *buffer)
+binder_free_buf(struct binder_proc *proc,
+ struct binder_thread *thread,
+ struct binder_buffer *buffer)
{
binder_inner_proc_lock(proc);
if (buffer->transaction) {
binder_node_inner_unlock(buf_node);
}
trace_binder_transaction_buffer_release(buffer);
- binder_transaction_buffer_release(proc, buffer, 0, false);
+ binder_transaction_buffer_release(proc, thread, buffer, 0, false);
binder_alloc_free_buf(&proc->alloc, buffer);
}
proc->pid, thread->pid, (u64)data_ptr,
buffer->debug_id,
buffer->transaction ? "active" : "finished");
- binder_free_buf(proc, buffer);
+ binder_free_buf(proc, thread, buffer);
break;
}
buffer->transaction = NULL;
binder_cleanup_transaction(t, "fd fixups failed",
BR_FAILED_REPLY);
- binder_free_buf(proc, buffer);
+ binder_free_buf(proc, thread, buffer);
binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
"%d:%d %stransaction %d fd fixups failed %d/%d, line %d\n",
proc->pid, thread->pid,
return 0;
}
+static bool binder_txns_pending_ilocked(struct binder_proc *proc)
+{
+ struct rb_node *n;
+ struct binder_thread *thread;
+
+ if (proc->outstanding_txns > 0)
+ return true;
+
+ for (n = rb_first(&proc->threads); n; n = rb_next(n)) {
+ thread = rb_entry(n, struct binder_thread, rb_node);
+ if (thread->transaction_stack)
+ return true;
+ }
+ return false;
+}
+
static int binder_ioctl_freeze(struct binder_freeze_info *info,
struct binder_proc *target_proc)
{
(!target_proc->outstanding_txns),
msecs_to_jiffies(info->timeout_ms));
- if (!ret && target_proc->outstanding_txns)
- ret = -EAGAIN;
+ /* Check pending transactions that wait for reply */
+ if (ret >= 0) {
+ binder_inner_proc_lock(target_proc);
+ if (binder_txns_pending_ilocked(target_proc))
+ ret = -EAGAIN;
+ binder_inner_proc_unlock(target_proc);
+ }
if (ret < 0) {
binder_inner_proc_lock(target_proc);
{
struct binder_proc *target_proc;
bool found = false;
+ __u32 txns_pending;
info->sync_recv = 0;
info->async_recv = 0;
if (target_proc->pid == info->pid) {
found = true;
binder_inner_proc_lock(target_proc);
- info->sync_recv |= target_proc->sync_recv;
+ txns_pending = binder_txns_pending_ilocked(target_proc);
+ info->sync_recv |= target_proc->sync_recv |
+ (txns_pending << 1);
info->async_recv |= target_proc->async_recv;
binder_inner_proc_unlock(target_proc);
}
* binder transactions
* (protected by @inner_lock)
* @sync_recv: process received sync transactions since last frozen
+ * bit 0: received sync transaction after being frozen
+ * bit 1: new pending sync transaction during freezing
* (protected by @inner_lock)
* @async_recv: process received async transactions since last frozen
* (protected by @inner_lock)
size = numa_distance_cnt * numa_distance_cnt *
sizeof(numa_distance[0]);
- memblock_free(__pa(numa_distance), size);
+ memblock_free_ptr(numa_distance, size);
numa_distance_cnt = 0;
numa_distance = NULL;
}
#include <linux/export.h>
#include <linux/rtc.h>
#include <linux/suspend.h>
+#include <linux/init.h>
#include <linux/mc146818rtc.h>
const char *file = *(const char **)(tracedata + 2);
unsigned int user_hash_value, file_hash_value;
+ if (!x86_platform.legacy.rtc)
+ return;
+
user_hash_value = user % USERHASH;
file_hash_value = hash_string(lineno, file, FILEHASH);
set_magic_time(user_hash_value, file_hash_value, dev_hash_value);
static int __init early_resume_init(void)
{
+ if (!x86_platform.legacy.rtc)
+ return 0;
+
hash_value_early_read = read_magic_time();
register_pm_notifier(&pm_trace_nb);
return 0;
unsigned int val = hash_value_early_read;
unsigned int user, file, dev;
+ if (!x86_platform.legacy.rtc)
+ return 0;
+
user = val % USERHASH;
val = val / USERHASH;
file = val % FILEHASH;
to_swnode(fwnode)->managed = true;
set_secondary_fwnode(dev, fwnode);
+ if (device_is_registered(dev))
+ software_node_notify(dev);
+
return 0;
}
EXPORT_SYMBOL_GPL(device_create_managed_software_node);
mutex_lock(&dev->mutex);
rc = do_insnlist_ioctl(dev, insns, insnlist32.n_insns, file);
mutex_unlock(&dev->mutex);
+ kfree(insns);
return rc;
}
if (count)
return count;
- kobject_put(&attr_set->kobj);
mutex_destroy(&attr_set->update_lock);
+ kobject_put(&attr_set->kobj);
return 0;
}
EXPORT_SYMBOL_GPL(gov_attr_set_put);
if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
return -ENODEV;
- if (no_load)
- return -ENODEV;
-
id = x86_match_cpu(hwp_support_ids);
if (id) {
+ bool hwp_forced = intel_pstate_hwp_is_enabled();
+
+ if (hwp_forced)
+ pr_info("HWP enabled by BIOS\n");
+ else if (no_load)
+ return -ENODEV;
+
copy_cpu_funcs(&core_funcs);
/*
* Avoid enabling HWP for processors without EPP support,
* If HWP is enabled already, though, there is no choice but to
* deal with it.
*/
- if ((!no_hwp && boot_cpu_has(X86_FEATURE_HWP_EPP)) ||
- intel_pstate_hwp_is_enabled()) {
+ if ((!no_hwp && boot_cpu_has(X86_FEATURE_HWP_EPP)) || hwp_forced) {
hwp_active++;
hwp_mode_bdw = id->driver_data;
intel_pstate.attr = hwp_cpufreq_attrs;
goto hwp_cpu_matched;
}
+ pr_info("HWP not enabled\n");
} else {
+ if (no_load)
+ return -ENODEV;
+
id = x86_match_cpu(intel_pstate_cpu_ids);
if (!id) {
pr_info("CPU model not supported\n");
else if (!strcmp(str, "passive"))
default_driver = &intel_cpufreq;
- if (!strcmp(str, "no_hwp")) {
- pr_info("HWP disabled\n");
+ if (!strcmp(str, "no_hwp"))
no_hwp = 1;
- }
+
if (!strcmp(str, "force"))
force_load = 1;
if (!strcmp(str, "hwp_only"))
static int ve_spc_cpufreq_exit(struct cpufreq_policy *policy)
{
struct device *cpu_dev;
- int cur_cluster = cpu_to_cluster(policy->cpu);
cpu_dev = get_cpu_device(policy->cpu);
if (!cpu_dev) {
dimm->grain = pvt->mem_width_in_bytes;
dimm->dtype = dt;
dimm->mtype = mt;
- dimm->edac_mode = EDAC_FLAG_SECDED;
+ dimm->edac_mode = EDAC_SECDED;
dimm->nr_pages = pages_per_rank / csi->nr_channels;
}
}
for (j = 0; j < csi->nr_channels; j++) {
dimm = csi->channels[j]->dimm;
- dimm->edac_mode = EDAC_FLAG_SECDED;
+ dimm->edac_mode = EDAC_SECDED;
dimm->mtype = p_data->get_mtype(priv->baseaddr);
dimm->nr_pages = (size >> PAGE_SHIFT) / csi->nr_channels;
dimm->grain = SYNPS_EDAC_ERR_GRAIN;
{
unsigned int irq_base, nr_irqs;
struct dfl_feature_info *finfo;
+ u8 revision = 0;
int ret;
- u8 revision;
u64 v;
- v = readq(binfo->ioaddr + ofst);
- revision = FIELD_GET(DFH_REVISION, v);
+ if (fid != FEATURE_ID_AFU) {
+ v = readq(binfo->ioaddr + ofst);
+ revision = FIELD_GET(DFH_REVISION, v);
- /* read feature size and id if inputs are invalid */
- size = size ? size : feature_size(v);
- fid = fid ? fid : feature_id(v);
+ /* read feature size and id if inputs are invalid */
+ size = size ? size : feature_size(v);
+ fid = fid ? fid : feature_id(v);
+ }
if (binfo->len - ofst < size)
return -EINVAL;
goto fail;
get_status(spi, &status);
- if (test_bit(FAIL, &status))
+ if (test_bit(FAIL, &status)) {
+ ret = -EINVAL;
goto fail;
+ }
dump_status_reg(&status);
spi_message_init(&msg);
dump_status_reg(&status);
if (!test_bit(DONE, &status)) {
machxo2_cleanup(mgr);
+ ret = -EINVAL;
goto fail;
}
break;
if (++refreshloop == MACHXO2_MAX_REFRESH_LOOP) {
machxo2_cleanup(mgr);
+ ret = -EINVAL;
goto fail;
}
} while (1);
reg = ioread32(bank_reg(data, bank, reg_irq_status));
for_each_set_bit(p, ®, 32)
- generic_handle_domain_irq(gc->irq.domain, i * 32 + p);
+ generic_handle_domain_irq(gc->irq.domain, i * 32 + p * 2);
}
chained_irq_exit(ic, desc);
u32 data;
data = rockchip_gpio_readl_bit(bank, offset, bank->gpio_regs->port_ddr);
- if (data & BIT(offset))
+ if (data)
return GPIO_LINE_DIRECTION_OUT;
return GPIO_LINE_DIRECTION_IN;
unsigned int cur_div_reg;
u64 div;
- if (!IS_ERR(bank->db_clk)) {
+ if (bank->gpio_type == GPIO_TYPE_V2 && !IS_ERR(bank->db_clk)) {
div_debounce_support = true;
freq = clk_get_rate(bank->db_clk);
max_debounce = (GENMASK(23, 0) + 1) * 2 * 1000000 / freq;
uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, 0);
- return irq_chip_mask_parent(data);
+ irq_chip_mask_parent(data);
}
static void uniphier_gpio_irq_unmask(struct irq_data *data)
uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, mask);
- return irq_chip_unmask_parent(data);
+ irq_chip_unmask_parent(data);
}
static int uniphier_gpio_irq_set_type(struct irq_data *data, unsigned int type)
ret = gpio_set_debounce_timeout(desc, agpio->debounce_timeout);
if (ret)
- gpiochip_free_own_desc(desc);
+ dev_warn(chip->parent,
+ "Failed to set debounce-timeout for pin 0x%04X, err %d\n",
+ pin, ret);
- return ret ? ERR_PTR(ret) : desc;
+ return desc;
}
static bool acpi_gpio_in_ignore_list(const char *controller_in, int pin_in)
MAX_HWIP
};
-#define HWIP_MAX_INSTANCE 8
+#define HWIP_MAX_INSTANCE 10
struct amd_powerplay {
void *pp_handle;
kgd2kfd_suspend(adev->kfd.dev, run_pm);
}
+int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev)
+{
+ int r = 0;
+
+ if (adev->kfd.dev)
+ r = kgd2kfd_resume_iommu(adev->kfd.dev);
+
+ return r;
+}
+
int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
{
int r = 0;
void amdgpu_amdkfd_fini(void);
void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm);
+int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev);
int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm);
void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
const void *ih_ring_entry);
const struct kgd2kfd_shared_resources *gpu_resources);
void kgd2kfd_device_exit(struct kfd_dev *kfd);
void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm);
+int kgd2kfd_resume_iommu(struct kfd_dev *kfd);
int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm);
int kgd2kfd_pre_reset(struct kfd_dev *kfd);
int kgd2kfd_post_reset(struct kfd_dev *kfd);
{
}
+static int __maybe_unused kgd2kfd_resume_iommu(struct kfd_dev *kfd)
+{
+ return 0;
+}
+
static inline int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
{
return 0;
struct dentry *ent;
int r, i;
-
-
ent = debugfs_create_file("amdgpu_preempt_ib", 0600, root, adev,
&fops_ib_preempt);
- if (!ent) {
+ if (IS_ERR(ent)) {
DRM_ERROR("unable to create amdgpu_preempt_ib debugsfs file\n");
- return -EIO;
+ return PTR_ERR(ent);
}
ent = debugfs_create_file("amdgpu_force_sclk", 0200, root, adev,
&fops_sclk_set);
- if (!ent) {
+ if (IS_ERR(ent)) {
DRM_ERROR("unable to create amdgpu_set_sclk debugsfs file\n");
- return -EIO;
+ return PTR_ERR(ent);
}
/* Register debugfs entries for amdgpu_ttm */
if (r)
goto init_failed;
+ r = amdgpu_amdkfd_resume_iommu(adev);
+ if (r)
+ goto init_failed;
+
r = amdgpu_device_ip_hw_init_phase1(adev);
if (r)
goto init_failed;
{
int r;
+ r = amdgpu_amdkfd_resume_iommu(adev);
+ if (r)
+ return r;
+
r = amdgpu_device_ip_resume_phase1(adev);
if (r)
return r;
dev_warn(tmp_adev->dev, "asic atom init failed!");
} else {
dev_info(tmp_adev->dev, "GPU reset succeeded, trying to resume\n");
+ r = amdgpu_amdkfd_resume_iommu(tmp_adev);
+ if (r)
+ goto out;
+
r = amdgpu_device_ip_resume_phase1(tmp_adev);
if (r)
goto out;
break;
default:
adev->gmc.tmz_enabled = false;
- dev_warn(adev->dev,
+ dev_info(adev->dev,
"Trusted Memory Zone (TMZ) feature not supported\n");
break;
}
return res;
}
-inline uint32_t amdgpu_ras_eeprom_max_record_count(void)
+uint32_t amdgpu_ras_eeprom_max_record_count(void)
{
return RAS_MAX_RECORD_COUNT;
}
int amdgpu_ras_eeprom_append(struct amdgpu_ras_eeprom_control *control,
struct eeprom_table_record *records, const u32 num);
-inline uint32_t amdgpu_ras_eeprom_max_record_count(void);
+uint32_t amdgpu_ras_eeprom_max_record_count(void);
void amdgpu_ras_debugfs_set_ret_size(struct amdgpu_ras_eeprom_control *control);
ent = debugfs_create_file(name,
S_IFREG | S_IRUGO, root,
ring, &amdgpu_debugfs_ring_fops);
- if (!ent)
- return -ENOMEM;
+ if (IS_ERR(ent))
+ return PTR_ERR(ent);
i_size_write(ent->d_inode, ring->ring_size + 12);
ring->ent = ent;
goto out;
}
+ if (bo->type == ttm_bo_type_device &&
+ new_mem->mem_type == TTM_PL_VRAM &&
+ old_mem->mem_type != TTM_PL_VRAM) {
+ /* amdgpu_bo_fault_reserve_notify will re-set this if the CPU
+ * accesses the BO after it's moved.
+ */
+ abo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
+ }
+
if (adev->mman.buffer_funcs_enabled) {
if (((old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_VRAM) ||
return r;
}
- if (bo->type == ttm_bo_type_device &&
- new_mem->mem_type == TTM_PL_VRAM &&
- old_mem->mem_type != TTM_PL_VRAM) {
- /* amdgpu_bo_fault_reserve_notify will re-set this if the CPU
- * accesses the BO after it's moved.
- */
- abo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
- }
-
out:
/* update statistics */
atomic64_add(bo->base.size, &adev->num_bytes_moved);
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 145,
.num_sdma_engines = 2,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 145,
.num_sdma_engines = 2,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 145,
.num_sdma_engines = 2,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 92,
.num_sdma_engines = 4,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 92,
.num_sdma_engines = 2,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.mqd_size_aligned = MQD_SIZE_ALIGNED,
.needs_iommu_device = false,
.supports_cwsr = true,
- .needs_pci_atomics = false,
+ .needs_pci_atomics = true,
+ .no_atomic_fw_version = 92,
.num_sdma_engines = 1,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 2,
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 92,
.num_sdma_engines = 2,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.needs_iommu_device = false,
.supports_cwsr = true,
.needs_pci_atomics = true,
+ .no_atomic_fw_version = 92,
.num_sdma_engines = 1,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 8,
.mqd_size_aligned = MQD_SIZE_ALIGNED,
.needs_iommu_device = false,
.supports_cwsr = true,
- .needs_pci_atomics = false,
+ .needs_pci_atomics = true,
+ .no_atomic_fw_version = 92,
.num_sdma_engines = 1,
.num_xgmi_sdma_engines = 0,
.num_sdma_queues_per_engine = 2,
if (!kfd)
return NULL;
- /* Allow BIF to recode atomics to PCIe 3.0 AtomicOps.
- * 32 and 64-bit requests are possible and must be
- * supported.
- */
- kfd->pci_atomic_requested = amdgpu_amdkfd_have_atomics_support(kgd);
- if (device_info->needs_pci_atomics &&
- !kfd->pci_atomic_requested) {
- dev_info(kfd_device,
- "skipped device %x:%x, PCI rejects atomics\n",
- pdev->vendor, pdev->device);
- kfree(kfd);
- return NULL;
- }
-
kfd->kgd = kgd;
kfd->device_info = device_info;
kfd->pdev = pdev;
kfd->vm_info.vmid_num_kfd = kfd->vm_info.last_vmid_kfd
- kfd->vm_info.first_vmid_kfd + 1;
+ /* Allow BIF to recode atomics to PCIe 3.0 AtomicOps.
+ * 32 and 64-bit requests are possible and must be
+ * supported.
+ */
+ kfd->pci_atomic_requested = amdgpu_amdkfd_have_atomics_support(kfd->kgd);
+ if (!kfd->pci_atomic_requested &&
+ kfd->device_info->needs_pci_atomics &&
+ (!kfd->device_info->no_atomic_fw_version ||
+ kfd->mec_fw_version < kfd->device_info->no_atomic_fw_version)) {
+ dev_info(kfd_device,
+ "skipped device %x:%x, PCI rejects atomics %d<%d\n",
+ kfd->pdev->vendor, kfd->pdev->device,
+ kfd->mec_fw_version,
+ kfd->device_info->no_atomic_fw_version);
+ return false;
+ }
+
/* Verify module parameters regarding mapped process number*/
if ((hws_max_conc_proc < 0)
|| (hws_max_conc_proc > kfd->vm_info.vmid_num_kfd)) {
void kgd2kfd_device_exit(struct kfd_dev *kfd)
{
if (kfd->init_complete) {
- svm_migrate_fini((struct amdgpu_device *)kfd->kgd);
device_queue_manager_uninit(kfd->dqm);
kfd_interrupt_exit(kfd);
kfd_topology_remove_device(kfd);
return ret;
}
-static int kfd_resume(struct kfd_dev *kfd)
+int kgd2kfd_resume_iommu(struct kfd_dev *kfd)
{
int err = 0;
err = kfd_iommu_resume(kfd);
- if (err) {
+ if (err)
dev_err(kfd_device,
"Failed to resume IOMMU for device %x:%x\n",
kfd->pdev->vendor, kfd->pdev->device);
- return err;
- }
+ return err;
+}
+
+static int kfd_resume(struct kfd_dev *kfd)
+{
+ int err = 0;
err = kfd->dqm->ops.start(kfd->dqm);
if (err) {
pgmap->ops = &svm_migrate_pgmap_ops;
pgmap->owner = SVM_ADEV_PGMAP_OWNER(adev);
pgmap->flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE;
+
+ /* Device manager releases device-specific resources, memory region and
+ * pgmap when driver disconnects from device.
+ */
r = devm_memremap_pages(adev->dev, pgmap);
if (IS_ERR(r)) {
pr_err("failed to register HMM device memory\n");
+
+ /* Disable SVM support capability */
+ pgmap->type = 0;
devm_release_mem_region(adev->dev, res->start,
res->end - res->start + 1);
return PTR_ERR(r);
return 0;
}
-
-void svm_migrate_fini(struct amdgpu_device *adev)
-{
- struct dev_pagemap *pgmap = &adev->kfd.dev->pgmap;
-
- devm_memunmap_pages(adev->dev, pgmap);
- devm_release_mem_region(adev->dev, pgmap->range.start,
- pgmap->range.end - pgmap->range.start + 1);
-}
svm_migrate_addr_to_pfn(struct amdgpu_device *adev, unsigned long addr);
int svm_migrate_init(struct amdgpu_device *adev);
-void svm_migrate_fini(struct amdgpu_device *adev);
#else
{
return 0;
}
-static inline void svm_migrate_fini(struct amdgpu_device *adev)
-{
- /* empty */
-}
#endif /* IS_ENABLED(CONFIG_HSA_AMD_SVM) */
bool supports_cwsr;
bool needs_iommu_device;
bool needs_pci_atomics;
+ uint32_t no_atomic_fw_version;
unsigned int num_sdma_engines;
unsigned int num_xgmi_sdma_engines;
unsigned int num_sdma_queues_per_engine;
mmu_interval_notifier_remove(&prange->notifier);
}
+static bool
+svm_is_valid_dma_mapping_addr(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr && !dma_mapping_error(dev, dma_addr) &&
+ !(dma_addr & SVM_RANGE_VRAM_DOMAIN);
+}
+
static int
svm_range_dma_map_dev(struct amdgpu_device *adev, struct svm_range *prange,
unsigned long offset, unsigned long npages,
addr += offset;
for (i = 0; i < npages; i++) {
- if (WARN_ONCE(addr[i] && !dma_mapping_error(dev, addr[i]),
- "leaking dma mapping\n"))
+ if (svm_is_valid_dma_mapping_addr(dev, addr[i]))
dma_unmap_page(dev, addr[i], PAGE_SIZE, dir);
page = hmm_pfn_to_page(hmm_pfns[i]);
return;
for (i = offset; i < offset + npages; i++) {
- if (!dma_addr[i] || dma_mapping_error(dev, dma_addr[i]))
+ if (!svm_is_valid_dma_mapping_addr(dev, dma_addr[i]))
continue;
pr_debug("dma unmapping 0x%llx\n", dma_addr[i] >> PAGE_SHIFT);
dma_unmap_page(dev, dma_addr[i], PAGE_SIZE, dir);
unsigned long last_start;
int last_domain;
int r = 0;
- int64_t i;
+ int64_t i, j;
last_start = prange->start + offset;
for (i = offset; i < offset + npages; i++) {
last_domain = dma_addr[i] & SVM_RANGE_VRAM_DOMAIN;
dma_addr[i] &= ~SVM_RANGE_VRAM_DOMAIN;
- if ((prange->start + i) < prange->last &&
+
+ /* Collect all pages in the same address range and memory domain
+ * that can be mapped with a single call to update mapping.
+ */
+ if (i < offset + npages - 1 &&
last_domain == (dma_addr[i + 1] & SVM_RANGE_VRAM_DOMAIN))
continue;
NULL, dma_addr,
&vm->last_update,
&table_freed);
+
+ for (j = last_start - prange->start; j <= i; j++)
+ dma_addr[j] |= last_domain;
+
if (r) {
pr_debug("failed %d to map to gpu 0x%lx\n", r, prange->start);
goto out;
uint32_t agp_base, agp_bot, agp_top;
PHYSICAL_ADDRESS_LOC page_table_start, page_table_end, page_table_base;
+ memset(pa_config, 0, sizeof(*pa_config));
+
logical_addr_low = min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18;
pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
return 0;
#if defined(CONFIG_DRM_AMD_DC_DCN)
- work = kzalloc(sizeof(*work), GFP_ATOMIC);
- if (!work)
- return -ENOMEM;
+ if (dm->vblank_control_workqueue) {
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return -ENOMEM;
- INIT_WORK(&work->work, vblank_control_worker);
- work->dm = dm;
- work->acrtc = acrtc;
- work->enable = enable;
+ INIT_WORK(&work->work, vblank_control_worker);
+ work->dm = dm;
+ work->acrtc = acrtc;
+ work->enable = enable;
- if (acrtc_state->stream) {
- dc_stream_retain(acrtc_state->stream);
- work->stream = acrtc_state->stream;
- }
+ if (acrtc_state->stream) {
+ dc_stream_retain(acrtc_state->stream);
+ work->stream = acrtc_state->stream;
+ }
- queue_work(dm->vblank_control_workqueue, &work->work);
+ queue_work(dm->vblank_control_workqueue, &work->work);
+ }
#endif
return 0;
#if defined(CONFIG_DRM_AMD_DC_DCN)
static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
- struct dc_state *dc_state)
+ struct dc_state *dc_state,
+ struct dsc_mst_fairness_vars *vars)
{
struct dc_stream_state *stream = NULL;
struct drm_connector *connector;
struct drm_connector_state *new_con_state;
struct amdgpu_dm_connector *aconnector;
struct dm_connector_state *dm_conn_state;
- int i, j, clock, bpp;
+ int i, j, clock;
int vcpi, pbn_div, pbn = 0;
for_each_new_connector_in_state(state, connector, new_con_state, i) {
}
pbn_div = dm_mst_get_pbn_divider(stream->link);
- bpp = stream->timing.dsc_cfg.bits_per_pixel;
clock = stream->timing.pix_clk_100hz / 10;
- pbn = drm_dp_calc_pbn_mode(clock, bpp, true);
+ /* pbn is calculated by compute_mst_dsc_configs_for_state*/
+ for (j = 0; j < dc_state->stream_count; j++) {
+ if (vars[j].aconnector == aconnector) {
+ pbn = vars[j].pbn;
+ break;
+ }
+ }
+
vcpi = drm_dp_mst_atomic_enable_dsc(state,
aconnector->port,
pbn, pbn_div,
}
}
+static void amdgpu_set_panel_orientation(struct drm_connector *connector)
+{
+ struct drm_encoder *encoder;
+ struct amdgpu_encoder *amdgpu_encoder;
+ const struct drm_display_mode *native_mode;
+
+ if (connector->connector_type != DRM_MODE_CONNECTOR_eDP &&
+ connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
+ return;
+
+ encoder = amdgpu_dm_connector_to_encoder(connector);
+ if (!encoder)
+ return;
+
+ amdgpu_encoder = to_amdgpu_encoder(encoder);
+
+ native_mode = &amdgpu_encoder->native_mode;
+ if (native_mode->hdisplay == 0 || native_mode->vdisplay == 0)
+ return;
+
+ drm_connector_set_panel_orientation_with_quirk(connector,
+ DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
+ native_mode->hdisplay,
+ native_mode->vdisplay);
+}
+
static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
struct edid *edid)
{
* restored here.
*/
amdgpu_dm_update_freesync_caps(connector, edid);
+
+ amdgpu_set_panel_orientation(connector);
} else {
amdgpu_dm_connector->num_modes = 0;
}
state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
- /* Check if something is connected/enabled, otherwise we start hdcp but nothing is connected/enabled
- * hot-plug, headless s3, dpms
+ /* Stream removed and re-enabled
+ *
+ * Can sometimes overlap with the HPD case,
+ * thus set update_hdcp to false to avoid
+ * setting HDCP multiple times.
+ *
+ * Handles: DESIRED -> DESIRED (Special case)
+ */
+ if (!(old_state->crtc && old_state->crtc->enabled) &&
+ state->crtc && state->crtc->enabled &&
+ connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+ dm_con_state->update_hdcp = false;
+ return true;
+ }
+
+ /* Hot-plug, headless s3, dpms
+ *
+ * Only start HDCP if the display is connected/enabled.
+ * update_hdcp flag will be set to false until the next
+ * HPD comes in.
*
* Handles: DESIRED -> DESIRED (Special case)
*/
* If PSR or idle optimizations are enabled then flush out
* any pending work before hardware programming.
*/
- flush_workqueue(dm->vblank_control_workqueue);
+ if (dm->vblank_control_workqueue)
+ flush_workqueue(dm->vblank_control_workqueue);
#endif
bundle->stream_update.stream = acrtc_state->stream;
/* if there mode set or reset, disable eDP PSR */
if (mode_set_reset_required) {
#if defined(CONFIG_DRM_AMD_DC_DCN)
- flush_workqueue(dm->vblank_control_workqueue);
+ if (dm->vblank_control_workqueue)
+ flush_workqueue(dm->vblank_control_workqueue);
#endif
amdgpu_dm_psr_disable_all(dm);
}
int ret, i;
bool lock_and_validation_needed = false;
struct dm_crtc_state *dm_old_crtc_state;
+#if defined(CONFIG_DRM_AMD_DC_DCN)
+ struct dsc_mst_fairness_vars vars[MAX_PIPES];
+#endif
trace_amdgpu_dm_atomic_check_begin(state);
goto fail;
#if defined(CONFIG_DRM_AMD_DC_DCN)
- if (!compute_mst_dsc_configs_for_state(state, dm_state->context))
+ if (!compute_mst_dsc_configs_for_state(state, dm_state->context, vars))
goto fail;
- ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context);
+ ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context, vars);
if (ret)
goto fail;
#endif
goto fail;
status = dc_validate_global_state(dc, dm_state->context, false);
if (status != DC_OK) {
- DC_LOG_WARNING("DC global validation failure: %s (%d)",
+ drm_dbg_atomic(dev,
+ "DC global validation failure: %s (%d)",
dc_status_to_str(status), status);
ret = -EINVAL;
goto fail;
uint32_t num_slices_h;
uint32_t num_slices_v;
uint32_t bpp_overwrite;
-};
-
-struct dsc_mst_fairness_vars {
- int pbn;
- bool dsc_enabled;
- int bpp_x16;
+ struct amdgpu_dm_connector *aconnector;
};
static int kbps_to_peak_pbn(int kbps)
static bool compute_mst_dsc_configs_for_link(struct drm_atomic_state *state,
struct dc_state *dc_state,
- struct dc_link *dc_link)
+ struct dc_link *dc_link,
+ struct dsc_mst_fairness_vars *vars)
{
int i;
struct dc_stream_state *stream;
struct dsc_mst_fairness_params params[MAX_PIPES];
- struct dsc_mst_fairness_vars vars[MAX_PIPES];
struct amdgpu_dm_connector *aconnector;
int count = 0;
bool debugfs_overwrite = false;
params[count].timing = &stream->timing;
params[count].sink = stream->sink;
aconnector = (struct amdgpu_dm_connector *)stream->dm_stream_context;
+ params[count].aconnector = aconnector;
params[count].port = aconnector->port;
params[count].clock_force_enable = aconnector->dsc_settings.dsc_force_enable;
if (params[count].clock_force_enable == DSC_CLK_FORCE_ENABLE)
}
/* Try no compression */
for (i = 0; i < count; i++) {
+ vars[i].aconnector = params[i].aconnector;
vars[i].pbn = kbps_to_peak_pbn(params[i].bw_range.stream_kbps);
vars[i].dsc_enabled = false;
vars[i].bpp_x16 = 0;
}
bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
- struct dc_state *dc_state)
+ struct dc_state *dc_state,
+ struct dsc_mst_fairness_vars *vars)
{
int i, j;
struct dc_stream_state *stream;
return false;
mutex_lock(&aconnector->mst_mgr.lock);
- if (!compute_mst_dsc_configs_for_link(state, dc_state, stream->link)) {
+ if (!compute_mst_dsc_configs_for_link(state, dc_state, stream->link, vars)) {
mutex_unlock(&aconnector->mst_mgr.lock);
return false;
}
dm_dp_create_fake_mst_encoders(struct amdgpu_device *adev);
#if defined(CONFIG_DRM_AMD_DC_DCN)
+
+struct dsc_mst_fairness_vars {
+ int pbn;
+ bool dsc_enabled;
+ int bpp_x16;
+ struct amdgpu_dm_connector *aconnector;
+};
+
bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state,
- struct dc_state *dc_state);
+ struct dc_state *dc_state,
+ struct dsc_mst_fairness_vars *vars);
#endif
#endif
depth = *pcpu;
put_cpu_ptr(&fpu_recursion_depth);
- ASSERT(depth > 1);
+ ASSERT(depth >= 1);
}
/**
int dc_link_get_backlight_level(const struct dc_link *link)
{
-
struct abm *abm = get_abm_from_stream_res(link);
+ struct panel_cntl *panel_cntl = link->panel_cntl;
+ struct dc *dc = link->ctx->dc;
+ struct dmcu *dmcu = dc->res_pool->dmcu;
+ bool fw_set_brightness = true;
- if (abm == NULL || abm->funcs->get_current_backlight == NULL)
- return DC_ERROR_UNEXPECTED;
+ if (dmcu)
+ fw_set_brightness = dmcu->funcs->is_dmcu_initialized(dmcu);
- return (int) abm->funcs->get_current_backlight(abm);
+ if (!fw_set_brightness && panel_cntl->funcs->get_current_backlight)
+ return panel_cntl->funcs->get_current_backlight(panel_cntl);
+ else if (abm != NULL && abm->funcs->get_current_backlight != NULL)
+ return (int) abm->funcs->get_current_backlight(abm);
+ else
+ return DC_ERROR_UNEXPECTED;
}
int dc_link_get_target_backlight_pwm(const struct dc_link *link)
-/* Copyright 2015 Advanced Micro Devices, Inc. */
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ */
#include "dm_services.h"
#include "dc.h"
#include "dc_link_dp.h"
dp_disable_link_phy(link, signal);
/* Abort link training if failure due to sink being unplugged. */
- if (status == LINK_TRAINING_ABORT)
- break;
- else if (do_fallback) {
+ if (status == LINK_TRAINING_ABORT) {
+ enum dc_connection_type type = dc_connection_none;
+
+ dc_link_detect_sink(link, &type);
+ if (type == dc_connection_none)
+ break;
+ } else if (do_fallback) {
decide_fallback_link_setting(*link_setting, ¤t_setting, status);
/* Fail link training if reduced link bandwidth no longer meets
* stream requirements.
#define DC_LOGGER \
engine->ctx->logger
-#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+#define DC_TRACE_LEVEL_MESSAGE(...) do { } while (0)
#define IS_DC_I2CAUX_LOGGING_ENABLED() (false)
#define LOG_FLAG_Error_I2cAux LOG_ERROR
#define LOG_FLAG_I2cAux_DceAux LOG_I2C_AUX
#define DEFAULT_AUX_ENGINE_MULT 0
#define DEFAULT_AUX_ENGINE_LENGTH 69
-#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+#define DC_TRACE_LEVEL_MESSAGE(...) do { } while (0)
static void release_engine(
struct dce_aux *engine)
static unsigned int dce_get_16_bit_backlight_from_pwm(struct panel_cntl *panel_cntl)
{
uint64_t current_backlight;
- uint32_t round_result;
uint32_t bl_period, bl_int_count;
uint32_t bl_pwm, fractional_duty_cycle_en;
uint32_t bl_period_mask, bl_pwm_mask;
current_backlight = div_u64(current_backlight, bl_period);
current_backlight = (current_backlight + 1) >> 1;
- current_backlight = (uint64_t)(current_backlight) * bl_period;
-
- round_result = (uint32_t)(current_backlight & 0xFFFFFFFF);
-
- round_result = (round_result >> (bl_int_count-1)) & 1;
-
- current_backlight >>= bl_int_count;
- current_backlight += round_result;
-
return (uint32_t)(current_backlight);
}
#define TABLE_PMSTATUSLOG 3 // Called by Tools for Agm logging
#define TABLE_DPMCLOCKS 4 // Called by Driver; defined here, but not used, for backward compatible
#define TABLE_MOMENTARY_PM 5 // Called by Tools; defined here, but not used, for backward compatible
-#define TABLE_COUNT 6
+#define TABLE_SMU_METRICS 6 // Called by Driver
+#define TABLE_COUNT 7
-#define NUM_DSPCLK_LEVELS 8
-#define NUM_SOCCLK_DPM_LEVELS 8
-#define NUM_DCEFCLK_DPM_LEVELS 4
-#define NUM_FCLK_DPM_LEVELS 4
-#define NUM_MEMCLK_DPM_LEVELS 4
+typedef struct SmuMetricsTable_t {
+ //CPU status
+ uint16_t CoreFrequency[6]; //[MHz]
+ uint32_t CorePower[6]; //[mW]
+ uint16_t CoreTemperature[6]; //[centi-Celsius]
+ uint16_t L3Frequency[2]; //[MHz]
+ uint16_t L3Temperature[2]; //[centi-Celsius]
+ uint16_t C0Residency[6]; //Percentage
-#define NUMBER_OF_PSTATES 8
-#define NUMBER_OF_CORES 8
+ // GFX status
+ uint16_t GfxclkFrequency; //[MHz]
+ uint16_t GfxTemperature; //[centi-Celsius]
-typedef enum {
- S3_TYPE_ENTRY,
- S5_TYPE_ENTRY,
-} Sleep_Type_e;
+ // SOC IP info
+ uint16_t SocclkFrequency; //[MHz]
+ uint16_t VclkFrequency; //[MHz]
+ uint16_t DclkFrequency; //[MHz]
+ uint16_t MemclkFrequency; //[MHz]
-typedef enum {
- GFX_OFF = 0,
- GFX_ON = 1,
-} GFX_Mode_e;
+ // power, VF info for CPU/GFX telemetry rails, and then socket power total
+ uint32_t Voltage[2]; //[mV] indices: VDDCR_VDD, VDDCR_GFX
+ uint32_t Current[2]; //[mA] indices: VDDCR_VDD, VDDCR_GFX
+ uint32_t Power[2]; //[mW] indices: VDDCR_VDD, VDDCR_GFX
+ uint32_t CurrentSocketPower; //[mW]
-typedef enum {
- CPU_P0 = 0,
- CPU_P1,
- CPU_P2,
- CPU_P3,
- CPU_P4,
- CPU_P5,
- CPU_P6,
- CPU_P7
-} CPU_PState_e;
+ uint16_t SocTemperature; //[centi-Celsius]
+ uint16_t EdgeTemperature;
+ uint16_t ThrottlerStatus;
+ uint16_t Spare;
-typedef enum {
- CPU_CORE0 = 0,
- CPU_CORE1,
- CPU_CORE2,
- CPU_CORE3,
- CPU_CORE4,
- CPU_CORE5,
- CPU_CORE6,
- CPU_CORE7
-} CORE_ID_e;
+} SmuMetricsTable_t;
-typedef enum {
- DF_DPM0 = 0,
- DF_DPM1,
- DF_DPM2,
- DF_DPM3,
- DF_PState_Count
-} DF_PState_e;
-
-typedef enum {
- GFX_DPM0 = 0,
- GFX_DPM1,
- GFX_DPM2,
- GFX_DPM3,
- GFX_PState_Count
-} GFX_PState_e;
+typedef struct SmuMetrics_t {
+ SmuMetricsTable_t Current;
+ SmuMetricsTable_t Average;
+ uint32_t SampleStartTime;
+ uint32_t SampleStopTime;
+ uint32_t Accnt;
+} SmuMetrics_t;
#endif
__SMU_DUMMY_MAP(SetUclkDpmMode), \
__SMU_DUMMY_MAP(LightSBR), \
__SMU_DUMMY_MAP(GfxDriverResetRecovery), \
- __SMU_DUMMY_MAP(BoardPowerCalibration),
+ __SMU_DUMMY_MAP(BoardPowerCalibration), \
+ __SMU_DUMMY_MAP(RequestGfxclk), \
+ __SMU_DUMMY_MAP(ForceGfxVid), \
+ __SMU_DUMMY_MAP(UnforceGfxVid),
#undef __SMU_DUMMY_MAP
#define __SMU_DUMMY_MAP(type) SMU_MSG_##type
#define PPSMC_MSG_SetDriverTableVMID 0x34
#define PPSMC_MSG_SetSoftMinCclk 0x35
#define PPSMC_MSG_SetSoftMaxCclk 0x36
-#define PPSMC_Message_Count 0x37
+#define PPSMC_MSG_GetGfxFrequency 0x37
+#define PPSMC_MSG_GetGfxVid 0x38
+#define PPSMC_MSG_ForceGfxFreq 0x39
+#define PPSMC_MSG_UnForceGfxFreq 0x3A
+#define PPSMC_MSG_ForceGfxVid 0x3B
+#define PPSMC_MSG_UnforceGfxVid 0x3C
+#define PPSMC_MSG_GetEnabledSmuFeatures 0x3D
+#define PPSMC_Message_Count 0x3E
#endif
si_enable_auto_throttle_source(adev, AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
si_thermal_start_thermal_controller(adev);
+ ni_update_current_ps(adev, boot_ps);
+
return 0;
}
*/
if (smu->uploading_custom_pp_table &&
(adev->asic_type >= CHIP_NAVI10) &&
- (adev->asic_type <= CHIP_DIMGREY_CAVEFISH))
+ (adev->asic_type <= CHIP_BEIGE_GOBY))
return smu_disable_all_features_with_exception(smu,
true,
SMU_FEATURE_COUNT);
struct smu_11_0_dpm_context *dpm_context = NULL;
uint32_t gen_speed, lane_width;
- if (amdgpu_ras_intr_triggered())
- return sysfs_emit(buf, "unavailable\n");
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
+ if (amdgpu_ras_intr_triggered()) {
+ size += sysfs_emit_at(buf, size, "unavailable\n");
+ return size;
+ }
dpm_context = smu_dpm->dpm_context;
#undef pr_info
#undef pr_debug
+/* unit: MHz */
+#define CYAN_SKILLFISH_SCLK_MIN 1000
+#define CYAN_SKILLFISH_SCLK_MAX 2000
+#define CYAN_SKILLFISH_SCLK_DEFAULT 1800
+
+/* unit: mV */
+#define CYAN_SKILLFISH_VDDC_MIN 700
+#define CYAN_SKILLFISH_VDDC_MAX 1129
+#define CYAN_SKILLFISH_VDDC_MAGIC 5118 // 0x13fe
+
+static struct gfx_user_settings {
+ uint32_t sclk;
+ uint32_t vddc;
+} cyan_skillfish_user_settings;
+
+#define FEATURE_MASK(feature) (1ULL << feature)
+#define SMC_DPM_FEATURE ( \
+ FEATURE_MASK(FEATURE_FCLK_DPM_BIT) | \
+ FEATURE_MASK(FEATURE_SOC_DPM_BIT) | \
+ FEATURE_MASK(FEATURE_GFX_DPM_BIT))
+
static struct cmn2asic_msg_mapping cyan_skillfish_message_map[SMU_MSG_MAX_COUNT] = {
MSG_MAP(TestMessage, PPSMC_MSG_TestMessage, 0),
MSG_MAP(GetSmuVersion, PPSMC_MSG_GetSmuVersion, 0),
MSG_MAP(SetDriverDramAddrLow, PPSMC_MSG_SetDriverTableDramAddrLow, 0),
MSG_MAP(TransferTableSmu2Dram, PPSMC_MSG_TransferTableSmu2Dram, 0),
MSG_MAP(TransferTableDram2Smu, PPSMC_MSG_TransferTableDram2Smu, 0),
+ MSG_MAP(GetEnabledSmuFeatures, PPSMC_MSG_GetEnabledSmuFeatures, 0),
+ MSG_MAP(RequestGfxclk, PPSMC_MSG_RequestGfxclk, 0),
+ MSG_MAP(ForceGfxVid, PPSMC_MSG_ForceGfxVid, 0),
+ MSG_MAP(UnforceGfxVid, PPSMC_MSG_UnforceGfxVid, 0),
+};
+
+static struct cmn2asic_mapping cyan_skillfish_table_map[SMU_TABLE_COUNT] = {
+ TAB_MAP_VALID(SMU_METRICS),
};
+static int cyan_skillfish_tables_init(struct smu_context *smu)
+{
+ struct smu_table_context *smu_table = &smu->smu_table;
+ struct smu_table *tables = smu_table->tables;
+
+ SMU_TABLE_INIT(tables, SMU_TABLE_SMU_METRICS,
+ sizeof(SmuMetrics_t),
+ PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_VRAM);
+
+ smu_table->metrics_table = kzalloc(sizeof(SmuMetrics_t), GFP_KERNEL);
+ if (!smu_table->metrics_table)
+ goto err0_out;
+
+ smu_table->gpu_metrics_table_size = sizeof(struct gpu_metrics_v2_2);
+ smu_table->gpu_metrics_table = kzalloc(smu_table->gpu_metrics_table_size, GFP_KERNEL);
+ if (!smu_table->gpu_metrics_table)
+ goto err1_out;
+
+ smu_table->metrics_time = 0;
+
+ return 0;
+
+err1_out:
+ smu_table->gpu_metrics_table_size = 0;
+ kfree(smu_table->metrics_table);
+err0_out:
+ return -ENOMEM;
+}
+
+static int cyan_skillfish_init_smc_tables(struct smu_context *smu)
+{
+ int ret = 0;
+
+ ret = cyan_skillfish_tables_init(smu);
+ if (ret)
+ return ret;
+
+ return smu_v11_0_init_smc_tables(smu);
+}
+
+static int cyan_skillfish_finit_smc_tables(struct smu_context *smu)
+{
+ struct smu_table_context *smu_table = &smu->smu_table;
+
+ kfree(smu_table->metrics_table);
+ smu_table->metrics_table = NULL;
+
+ kfree(smu_table->gpu_metrics_table);
+ smu_table->gpu_metrics_table = NULL;
+ smu_table->gpu_metrics_table_size = 0;
+
+ smu_table->metrics_time = 0;
+
+ return 0;
+}
+
+static int
+cyan_skillfish_get_smu_metrics_data(struct smu_context *smu,
+ MetricsMember_t member,
+ uint32_t *value)
+{
+ struct smu_table_context *smu_table = &smu->smu_table;
+ SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table;
+ int ret = 0;
+
+ mutex_lock(&smu->metrics_lock);
+
+ ret = smu_cmn_get_metrics_table_locked(smu, NULL, false);
+ if (ret) {
+ mutex_unlock(&smu->metrics_lock);
+ return ret;
+ }
+
+ switch (member) {
+ case METRICS_CURR_GFXCLK:
+ *value = metrics->Current.GfxclkFrequency;
+ break;
+ case METRICS_CURR_SOCCLK:
+ *value = metrics->Current.SocclkFrequency;
+ break;
+ case METRICS_CURR_VCLK:
+ *value = metrics->Current.VclkFrequency;
+ break;
+ case METRICS_CURR_DCLK:
+ *value = metrics->Current.DclkFrequency;
+ break;
+ case METRICS_CURR_UCLK:
+ *value = metrics->Current.MemclkFrequency;
+ break;
+ case METRICS_AVERAGE_SOCKETPOWER:
+ *value = (metrics->Current.CurrentSocketPower << 8) /
+ 1000;
+ break;
+ case METRICS_TEMPERATURE_EDGE:
+ *value = metrics->Current.GfxTemperature / 100 *
+ SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
+ break;
+ case METRICS_TEMPERATURE_HOTSPOT:
+ *value = metrics->Current.SocTemperature / 100 *
+ SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
+ break;
+ case METRICS_VOLTAGE_VDDSOC:
+ *value = metrics->Current.Voltage[0];
+ break;
+ case METRICS_VOLTAGE_VDDGFX:
+ *value = metrics->Current.Voltage[1];
+ break;
+ case METRICS_THROTTLER_STATUS:
+ *value = metrics->Current.ThrottlerStatus;
+ break;
+ default:
+ *value = UINT_MAX;
+ break;
+ }
+
+ mutex_unlock(&smu->metrics_lock);
+
+ return ret;
+}
+
+static int cyan_skillfish_read_sensor(struct smu_context *smu,
+ enum amd_pp_sensors sensor,
+ void *data,
+ uint32_t *size)
+{
+ int ret = 0;
+
+ if (!data || !size)
+ return -EINVAL;
+
+ mutex_lock(&smu->sensor_lock);
+
+ switch (sensor) {
+ case AMDGPU_PP_SENSOR_GFX_SCLK:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_CURR_GFXCLK,
+ (uint32_t *)data);
+ *(uint32_t *)data *= 100;
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_GFX_MCLK:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_CURR_UCLK,
+ (uint32_t *)data);
+ *(uint32_t *)data *= 100;
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_GPU_POWER:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_AVERAGE_SOCKETPOWER,
+ (uint32_t *)data);
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_HOTSPOT_TEMP:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_TEMPERATURE_HOTSPOT,
+ (uint32_t *)data);
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_EDGE_TEMP:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_TEMPERATURE_EDGE,
+ (uint32_t *)data);
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_VDDNB:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_VOLTAGE_VDDSOC,
+ (uint32_t *)data);
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_VDDGFX:
+ ret = cyan_skillfish_get_smu_metrics_data(smu,
+ METRICS_VOLTAGE_VDDGFX,
+ (uint32_t *)data);
+ *size = 4;
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+ mutex_unlock(&smu->sensor_lock);
+
+ return ret;
+}
+
+static int cyan_skillfish_get_current_clk_freq(struct smu_context *smu,
+ enum smu_clk_type clk_type,
+ uint32_t *value)
+{
+ MetricsMember_t member_type;
+
+ switch (clk_type) {
+ case SMU_GFXCLK:
+ case SMU_SCLK:
+ member_type = METRICS_CURR_GFXCLK;
+ break;
+ case SMU_FCLK:
+ case SMU_MCLK:
+ member_type = METRICS_CURR_UCLK;
+ break;
+ case SMU_SOCCLK:
+ member_type = METRICS_CURR_SOCCLK;
+ break;
+ case SMU_VCLK:
+ member_type = METRICS_CURR_VCLK;
+ break;
+ case SMU_DCLK:
+ member_type = METRICS_CURR_DCLK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return cyan_skillfish_get_smu_metrics_data(smu, member_type, value);
+}
+
+static int cyan_skillfish_print_clk_levels(struct smu_context *smu,
+ enum smu_clk_type clk_type,
+ char *buf)
+{
+ int ret = 0, size = 0;
+ uint32_t cur_value = 0;
+
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
+ switch (clk_type) {
+ case SMU_OD_SCLK:
+ ret = cyan_skillfish_get_smu_metrics_data(smu, METRICS_CURR_GFXCLK, &cur_value);
+ if (ret)
+ return ret;
+ size += sysfs_emit_at(buf, size,"%s:\n", "OD_SCLK");
+ size += sysfs_emit_at(buf, size, "0: %uMhz *\n", cur_value);
+ break;
+ case SMU_OD_VDDC_CURVE:
+ ret = cyan_skillfish_get_smu_metrics_data(smu, METRICS_VOLTAGE_VDDGFX, &cur_value);
+ if (ret)
+ return ret;
+ size += sysfs_emit_at(buf, size,"%s:\n", "OD_VDDC");
+ size += sysfs_emit_at(buf, size, "0: %umV *\n", cur_value);
+ break;
+ case SMU_OD_RANGE:
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+ size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n",
+ CYAN_SKILLFISH_SCLK_MIN, CYAN_SKILLFISH_SCLK_MAX);
+ size += sysfs_emit_at(buf, size, "VDDC: %7umV %10umV\n",
+ CYAN_SKILLFISH_VDDC_MIN, CYAN_SKILLFISH_VDDC_MAX);
+ break;
+ case SMU_GFXCLK:
+ case SMU_SCLK:
+ case SMU_FCLK:
+ case SMU_MCLK:
+ case SMU_SOCCLK:
+ case SMU_VCLK:
+ case SMU_DCLK:
+ ret = cyan_skillfish_get_current_clk_freq(smu, clk_type, &cur_value);
+ if (ret)
+ return ret;
+ size += sysfs_emit_at(buf, size, "0: %uMhz *\n", cur_value);
+ break;
+ default:
+ dev_warn(smu->adev->dev, "Unsupported clock type\n");
+ return ret;
+ }
+
+ return size;
+}
+
+static bool cyan_skillfish_is_dpm_running(struct smu_context *smu)
+{
+ struct amdgpu_device *adev = smu->adev;
+ int ret = 0;
+ uint32_t feature_mask[2];
+ uint64_t feature_enabled;
+
+ /* we need to re-init after suspend so return false */
+ if (adev->in_suspend)
+ return false;
+
+ ret = smu_cmn_get_enabled_32_bits_mask(smu, feature_mask, 2);
+
+ if (ret)
+ return false;
+
+ feature_enabled = (uint64_t)feature_mask[0] |
+ ((uint64_t)feature_mask[1] << 32);
+
+ return !!(feature_enabled & SMC_DPM_FEATURE);
+}
+
+static ssize_t cyan_skillfish_get_gpu_metrics(struct smu_context *smu,
+ void **table)
+{
+ struct smu_table_context *smu_table = &smu->smu_table;
+ struct gpu_metrics_v2_2 *gpu_metrics =
+ (struct gpu_metrics_v2_2 *)smu_table->gpu_metrics_table;
+ SmuMetrics_t metrics;
+ int i, ret = 0;
+
+ ret = smu_cmn_get_metrics_table(smu, &metrics, true);
+ if (ret)
+ return ret;
+
+ smu_cmn_init_soft_gpu_metrics(gpu_metrics, 2, 2);
+
+ gpu_metrics->temperature_gfx = metrics.Current.GfxTemperature;
+ gpu_metrics->temperature_soc = metrics.Current.SocTemperature;
+
+ gpu_metrics->average_socket_power = metrics.Current.CurrentSocketPower;
+ gpu_metrics->average_soc_power = metrics.Current.Power[0];
+ gpu_metrics->average_gfx_power = metrics.Current.Power[1];
+
+ gpu_metrics->average_gfxclk_frequency = metrics.Average.GfxclkFrequency;
+ gpu_metrics->average_socclk_frequency = metrics.Average.SocclkFrequency;
+ gpu_metrics->average_uclk_frequency = metrics.Average.MemclkFrequency;
+ gpu_metrics->average_fclk_frequency = metrics.Average.MemclkFrequency;
+ gpu_metrics->average_vclk_frequency = metrics.Average.VclkFrequency;
+ gpu_metrics->average_dclk_frequency = metrics.Average.DclkFrequency;
+
+ gpu_metrics->current_gfxclk = metrics.Current.GfxclkFrequency;
+ gpu_metrics->current_socclk = metrics.Current.SocclkFrequency;
+ gpu_metrics->current_uclk = metrics.Current.MemclkFrequency;
+ gpu_metrics->current_fclk = metrics.Current.MemclkFrequency;
+ gpu_metrics->current_vclk = metrics.Current.VclkFrequency;
+ gpu_metrics->current_dclk = metrics.Current.DclkFrequency;
+
+ for (i = 0; i < 6; i++) {
+ gpu_metrics->temperature_core[i] = metrics.Current.CoreTemperature[i];
+ gpu_metrics->average_core_power[i] = metrics.Average.CorePower[i];
+ gpu_metrics->current_coreclk[i] = metrics.Current.CoreFrequency[i];
+ }
+
+ for (i = 0; i < 2; i++) {
+ gpu_metrics->temperature_l3[i] = metrics.Current.L3Temperature[i];
+ gpu_metrics->current_l3clk[i] = metrics.Current.L3Frequency[i];
+ }
+
+ gpu_metrics->throttle_status = metrics.Current.ThrottlerStatus;
+ gpu_metrics->system_clock_counter = ktime_get_boottime_ns();
+
+ *table = (void *)gpu_metrics;
+
+ return sizeof(struct gpu_metrics_v2_2);
+}
+
+static int cyan_skillfish_od_edit_dpm_table(struct smu_context *smu,
+ enum PP_OD_DPM_TABLE_COMMAND type,
+ long input[], uint32_t size)
+{
+ int ret = 0;
+ uint32_t vid;
+
+ switch (type) {
+ case PP_OD_EDIT_VDDC_CURVE:
+ if (size != 3 || input[0] != 0) {
+ dev_err(smu->adev->dev, "Invalid parameter!\n");
+ return -EINVAL;
+ }
+
+ if (input[1] <= CYAN_SKILLFISH_SCLK_MIN ||
+ input[1] > CYAN_SKILLFISH_SCLK_MAX) {
+ dev_err(smu->adev->dev, "Invalid sclk! Valid sclk range: %uMHz - %uMhz\n",
+ CYAN_SKILLFISH_SCLK_MIN, CYAN_SKILLFISH_SCLK_MAX);
+ return -EINVAL;
+ }
+
+ if (input[2] <= CYAN_SKILLFISH_VDDC_MIN ||
+ input[2] > CYAN_SKILLFISH_VDDC_MAX) {
+ dev_err(smu->adev->dev, "Invalid vddc! Valid vddc range: %umV - %umV\n",
+ CYAN_SKILLFISH_VDDC_MIN, CYAN_SKILLFISH_VDDC_MAX);
+ return -EINVAL;
+ }
+
+ cyan_skillfish_user_settings.sclk = input[1];
+ cyan_skillfish_user_settings.vddc = input[2];
+
+ break;
+ case PP_OD_RESTORE_DEFAULT_TABLE:
+ if (size != 0) {
+ dev_err(smu->adev->dev, "Invalid parameter!\n");
+ return -EINVAL;
+ }
+
+ cyan_skillfish_user_settings.sclk = CYAN_SKILLFISH_SCLK_DEFAULT;
+ cyan_skillfish_user_settings.vddc = CYAN_SKILLFISH_VDDC_MAGIC;
+
+ break;
+ case PP_OD_COMMIT_DPM_TABLE:
+ if (size != 0) {
+ dev_err(smu->adev->dev, "Invalid parameter!\n");
+ return -EINVAL;
+ }
+
+ if (cyan_skillfish_user_settings.sclk < CYAN_SKILLFISH_SCLK_MIN ||
+ cyan_skillfish_user_settings.sclk > CYAN_SKILLFISH_SCLK_MAX) {
+ dev_err(smu->adev->dev, "Invalid sclk! Valid sclk range: %uMHz - %uMhz\n",
+ CYAN_SKILLFISH_SCLK_MIN, CYAN_SKILLFISH_SCLK_MAX);
+ return -EINVAL;
+ }
+
+ if ((cyan_skillfish_user_settings.vddc != CYAN_SKILLFISH_VDDC_MAGIC) &&
+ (cyan_skillfish_user_settings.vddc < CYAN_SKILLFISH_VDDC_MIN ||
+ cyan_skillfish_user_settings.vddc > CYAN_SKILLFISH_VDDC_MAX)) {
+ dev_err(smu->adev->dev, "Invalid vddc! Valid vddc range: %umV - %umV\n",
+ CYAN_SKILLFISH_VDDC_MIN, CYAN_SKILLFISH_VDDC_MAX);
+ return -EINVAL;
+ }
+
+ ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_RequestGfxclk,
+ cyan_skillfish_user_settings.sclk, NULL);
+ if (ret) {
+ dev_err(smu->adev->dev, "Set sclk failed!\n");
+ return ret;
+ }
+
+ if (cyan_skillfish_user_settings.vddc == CYAN_SKILLFISH_VDDC_MAGIC) {
+ ret = smu_cmn_send_smc_msg(smu, SMU_MSG_UnforceGfxVid, NULL);
+ if (ret) {
+ dev_err(smu->adev->dev, "Unforce vddc failed!\n");
+ return ret;
+ }
+ } else {
+ /*
+ * PMFW accepts SVI2 VID code, convert voltage to VID:
+ * vid = (uint32_t)((1.55 - voltage) * 160.0 + 0.00001)
+ */
+ vid = (1550 - cyan_skillfish_user_settings.vddc) * 160 / 1000;
+ ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_ForceGfxVid, vid, NULL);
+ if (ret) {
+ dev_err(smu->adev->dev, "Force vddc failed!\n");
+ return ret;
+ }
+ }
+
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
static const struct pptable_funcs cyan_skillfish_ppt_funcs = {
.check_fw_status = smu_v11_0_check_fw_status,
.check_fw_version = smu_v11_0_check_fw_version,
.init_power = smu_v11_0_init_power,
.fini_power = smu_v11_0_fini_power,
+ .init_smc_tables = cyan_skillfish_init_smc_tables,
+ .fini_smc_tables = cyan_skillfish_finit_smc_tables,
+ .read_sensor = cyan_skillfish_read_sensor,
+ .print_clk_levels = cyan_skillfish_print_clk_levels,
+ .is_dpm_running = cyan_skillfish_is_dpm_running,
+ .get_gpu_metrics = cyan_skillfish_get_gpu_metrics,
+ .od_edit_dpm_table = cyan_skillfish_od_edit_dpm_table,
.register_irq_handler = smu_v11_0_register_irq_handler,
.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
.send_smc_msg_with_param = smu_cmn_send_smc_msg_with_param,
{
smu->ppt_funcs = &cyan_skillfish_ppt_funcs;
smu->message_map = cyan_skillfish_message_map;
+ smu->table_map = cyan_skillfish_table_map;
smu->is_apu = true;
}
struct smu_11_0_overdrive_table *od_settings = smu->od_settings;
uint32_t min_value, max_value;
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
switch (clk_type) {
case SMU_GFXCLK:
case SMU_SCLK:
case SMU_OD_RANGE:
if (!smu->od_enabled || !od_table || !od_settings)
break;
- size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
if (navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_GFXCLK_LIMITS)) {
navi10_od_setting_get_range(od_settings, SMU_11_0_ODSETTING_GFXCLKFMIN,
{
struct amdgpu_device *adev = smu->adev;
- if (adev->in_runpm)
+ /*
+ * This aims the case below:
+ * amdgpu driver loaded -> runpm suspend kicked -> sound driver loaded
+ *
+ * For NAVI10 and later ASICs, we rely on PMFW to handle the runpm. To
+ * make that possible, PMFW needs to acknowledge the dstate transition
+ * process for both gfx(function 0) and audio(function 1) function of
+ * the ASIC.
+ *
+ * The PCI device's initial runpm status is RUNPM_SUSPENDED. So as the
+ * device representing the audio function of the ASIC. And that means
+ * even if the sound driver(snd_hda_intel) was not loaded yet, it's still
+ * possible runpm suspend kicked on the ASIC. However without the dstate
+ * transition notification from audio function, pmfw cannot handle the
+ * BACO in/exit correctly. And that will cause driver hang on runpm
+ * resuming.
+ *
+ * To address this, we revert to legacy message way(driver masters the
+ * timing for BACO in/exit) on sound driver missing.
+ */
+ if (adev->in_runpm && smu_cmn_is_audio_func_enabled(adev))
return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_BACO);
else
return smu_v11_0_baco_enter(smu);
{
struct amdgpu_device *adev = smu->adev;
- if (adev->in_runpm) {
+ if (adev->in_runpm && smu_cmn_is_audio_func_enabled(adev)) {
/* Wait for PMFW handling for the Dstate change */
msleep(10);
return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_ULPS);
uint32_t min_value, max_value;
uint32_t smu_version;
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
switch (clk_type) {
case SMU_GFXCLK:
case SMU_SCLK:
if (!smu->od_enabled || !od_table || !od_settings)
break;
- size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
if (sienna_cichlid_is_od_feature_supported(od_settings, SMU_11_0_7_ODCAP_GFXCLK_LIMITS)) {
sienna_cichlid_get_od_setting_range(od_settings, SMU_11_0_7_ODSETTING_GFXCLKFMIN,
{
struct amdgpu_device *adev = smu->adev;
- if (adev->in_runpm)
+ if (adev->in_runpm && smu_cmn_is_audio_func_enabled(adev))
return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_BACO);
else
return smu_v11_0_baco_enter(smu);
{
struct amdgpu_device *adev = smu->adev;
- if (adev->in_runpm) {
+ if (adev->in_runpm && smu_cmn_is_audio_func_enabled(adev)) {
/* Wait for PMFW handling for the Dstate change */
msleep(10);
return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_ULPS);
if (ret)
return ret;
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
switch (clk_type) {
case SMU_OD_SCLK:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
- size = sysfs_emit(buf, "%s:\n", "OD_SCLK");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_SCLK");
size += sysfs_emit_at(buf, size, "0: %10uMhz\n",
(smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq);
size += sysfs_emit_at(buf, size, "1: %10uMhz\n",
break;
case SMU_OD_CCLK:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
- size = sysfs_emit(buf, "CCLK_RANGE in Core%d:\n", smu->cpu_core_id_select);
+ size += sysfs_emit_at(buf, size, "CCLK_RANGE in Core%d:\n", smu->cpu_core_id_select);
size += sysfs_emit_at(buf, size, "0: %10uMhz\n",
(smu->cpu_actual_soft_min_freq > 0) ? smu->cpu_actual_soft_min_freq : smu->cpu_default_soft_min_freq);
size += sysfs_emit_at(buf, size, "1: %10uMhz\n",
break;
case SMU_OD_RANGE:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
- size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n",
smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq);
size += sysfs_emit_at(buf, size, "CCLK: %7uMhz %10uMhz\n",
if (ret)
return ret;
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
switch (clk_type) {
case SMU_OD_SCLK:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
- size = sysfs_emit(buf, "%s:\n", "OD_SCLK");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_SCLK");
size += sysfs_emit_at(buf, size, "0: %10uMhz\n",
(smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq);
size += sysfs_emit_at(buf, size, "1: %10uMhz\n",
break;
case SMU_OD_CCLK:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
- size = sysfs_emit(buf, "CCLK_RANGE in Core%d:\n", smu->cpu_core_id_select);
+ size += sysfs_emit_at(buf, size, "CCLK_RANGE in Core%d:\n", smu->cpu_core_id_select);
size += sysfs_emit_at(buf, size, "0: %10uMhz\n",
(smu->cpu_actual_soft_min_freq > 0) ? smu->cpu_actual_soft_min_freq : smu->cpu_default_soft_min_freq);
size += sysfs_emit_at(buf, size, "1: %10uMhz\n",
break;
case SMU_OD_RANGE:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
- size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n",
smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq);
size += sysfs_emit_at(buf, size, "CCLK: %7uMhz %10uMhz\n",
if (ret)
return ret;
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
switch (clk_type) {
case SMU_OD_RANGE:
if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) {
uint32_t freq_values[3] = {0};
uint32_t min_clk, max_clk;
- if (amdgpu_ras_intr_triggered())
- return sysfs_emit(buf, "unavailable\n");
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
+ if (amdgpu_ras_intr_triggered()) {
+ size += sysfs_emit_at(buf, size, "unavailable\n");
+ return size;
+ }
dpm_context = smu_dpm->dpm_context;
switch (type) {
case SMU_OD_SCLK:
- size = sysfs_emit(buf, "%s:\n", "GFXCLK");
+ size += sysfs_emit_at(buf, size, "%s:\n", "GFXCLK");
fallthrough;
case SMU_SCLK:
ret = aldebaran_get_current_clk_freq_by_table(smu, SMU_GFXCLK, &now);
break;
case SMU_OD_MCLK:
- size = sysfs_emit(buf, "%s:\n", "MCLK");
+ size += sysfs_emit_at(buf, size, "%s:\n", "MCLK");
fallthrough;
case SMU_MCLK:
ret = aldebaran_get_current_clk_freq_by_table(smu, SMU_UCLK, &now);
int i, size = 0, ret = 0;
uint32_t cur_value = 0, value = 0, count = 0;
+ smu_cmn_get_sysfs_buf(&buf, &size);
+
switch (clk_type) {
case SMU_OD_SCLK:
- size = sysfs_emit(buf, "%s:\n", "OD_SCLK");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_SCLK");
size += sysfs_emit_at(buf, size, "0: %10uMhz\n",
(smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq);
size += sysfs_emit_at(buf, size, "1: %10uMhz\n",
(smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq);
break;
case SMU_OD_RANGE:
- size = sysfs_emit(buf, "%s:\n", "OD_RANGE");
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n",
smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq);
break;
return ret;
}
+
+bool smu_cmn_is_audio_func_enabled(struct amdgpu_device *adev)
+{
+ struct pci_dev *p = NULL;
+ bool snd_driver_loaded;
+
+ /*
+ * If the ASIC comes with no audio function, we always assume
+ * it is "enabled".
+ */
+ p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+ adev->pdev->bus->number, 1);
+ if (!p)
+ return true;
+
+ snd_driver_loaded = pci_is_enabled(p) ? true : false;
+
+ pci_dev_put(p);
+
+ return snd_driver_loaded;
+}
int smu_cmn_set_mp1_state(struct smu_context *smu,
enum pp_mp1_state mp1_state);
+/*
+ * Helper function to make sysfs_emit_at() happy. Align buf to
+ * the current page boundary and record the offset.
+ */
+static inline void smu_cmn_get_sysfs_buf(char **buf, int *offset)
+{
+ if (!*buf || !offset)
+ return;
+
+ *offset = offset_in_page(*buf);
+ *buf -= *offset;
+}
+
+bool smu_cmn_is_audio_func_enabled(struct amdgpu_device *adev);
+
#endif
#endif
if (switch_mmu_context) {
struct etnaviv_iommu_context *old_context = gpu->mmu_context;
- etnaviv_iommu_context_get(mmu_context);
- gpu->mmu_context = mmu_context;
+ gpu->mmu_context = etnaviv_iommu_context_get(mmu_context);
etnaviv_iommu_context_put(old_context);
}
list_del(&mapping->obj_node);
}
- etnaviv_iommu_context_get(mmu_context);
- mapping->context = mmu_context;
+ mapping->context = etnaviv_iommu_context_get(mmu_context);
mapping->use = 1;
ret = etnaviv_iommu_map_gem(mmu_context, etnaviv_obj,
goto err_submit_objects;
submit->ctx = file->driver_priv;
- etnaviv_iommu_context_get(submit->ctx->mmu);
- submit->mmu_context = submit->ctx->mmu;
+ submit->mmu_context = etnaviv_iommu_context_get(submit->ctx->mmu);
submit->exec_state = args->exec_state;
submit->flags = args->flags;
/* We rely on the GPU running, so program the clock */
etnaviv_gpu_update_clock(gpu);
+ gpu->fe_running = false;
+ gpu->exec_state = -1;
+ if (gpu->mmu_context)
+ etnaviv_iommu_context_put(gpu->mmu_context);
+ gpu->mmu_context = NULL;
+
return 0;
}
VIVS_MMUv2_SEC_COMMAND_CONTROL_ENABLE |
VIVS_MMUv2_SEC_COMMAND_CONTROL_PREFETCH(prefetch));
}
+
+ gpu->fe_running = true;
}
-static void etnaviv_gpu_start_fe_idleloop(struct etnaviv_gpu *gpu)
+static void etnaviv_gpu_start_fe_idleloop(struct etnaviv_gpu *gpu,
+ struct etnaviv_iommu_context *context)
{
- u32 address = etnaviv_cmdbuf_get_va(&gpu->buffer,
- &gpu->mmu_context->cmdbuf_mapping);
u16 prefetch;
+ u32 address;
/* setup the MMU */
- etnaviv_iommu_restore(gpu, gpu->mmu_context);
+ etnaviv_iommu_restore(gpu, context);
/* Start command processor */
prefetch = etnaviv_buffer_init(gpu);
+ address = etnaviv_cmdbuf_get_va(&gpu->buffer,
+ &gpu->mmu_context->cmdbuf_mapping);
etnaviv_gpu_start_fe(gpu, address, prefetch);
}
/* Now program the hardware */
mutex_lock(&gpu->lock);
etnaviv_gpu_hw_init(gpu);
- gpu->exec_state = -1;
mutex_unlock(&gpu->lock);
pm_runtime_mark_last_busy(gpu->dev);
spin_unlock(&gpu->event_spinlock);
etnaviv_gpu_hw_init(gpu);
- gpu->exec_state = -1;
- gpu->mmu_context = NULL;
mutex_unlock(&gpu->lock);
pm_runtime_mark_last_busy(gpu->dev);
goto out_unlock;
}
- if (!gpu->mmu_context) {
- etnaviv_iommu_context_get(submit->mmu_context);
- gpu->mmu_context = submit->mmu_context;
- etnaviv_gpu_start_fe_idleloop(gpu);
- } else {
- etnaviv_iommu_context_get(gpu->mmu_context);
- submit->prev_mmu_context = gpu->mmu_context;
- }
+ if (!gpu->fe_running)
+ etnaviv_gpu_start_fe_idleloop(gpu, submit->mmu_context);
+
+ if (submit->prev_mmu_context)
+ etnaviv_iommu_context_put(submit->prev_mmu_context);
+ submit->prev_mmu_context = etnaviv_iommu_context_get(gpu->mmu_context);
if (submit->nr_pmrs) {
gpu->event[event[1]].sync_point = &sync_point_perfmon_sample_pre;
static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu)
{
- if (gpu->initialized && gpu->mmu_context) {
+ if (gpu->initialized && gpu->fe_running) {
/* Replace the last WAIT with END */
mutex_lock(&gpu->lock);
etnaviv_buffer_end(gpu);
*/
etnaviv_gpu_wait_idle(gpu, 100);
- etnaviv_iommu_context_put(gpu->mmu_context);
- gpu->mmu_context = NULL;
+ gpu->fe_running = false;
}
gpu->exec_state = -1;
etnaviv_gpu_hw_suspend(gpu);
#endif
+ if (gpu->mmu_context)
+ etnaviv_iommu_context_put(gpu->mmu_context);
+
if (gpu->initialized) {
etnaviv_cmdbuf_free(&gpu->buffer);
etnaviv_iommu_global_fini(gpu);
struct workqueue_struct *wq;
struct drm_gpu_scheduler sched;
bool initialized;
+ bool fe_running;
/* 'ring'-buffer: */
struct etnaviv_cmdbuf buffer;
struct etnaviv_iommuv1_context *v1_context = to_v1_context(context);
u32 pgtable;
+ if (gpu->mmu_context)
+ etnaviv_iommu_context_put(gpu->mmu_context);
+ gpu->mmu_context = etnaviv_iommu_context_get(context);
+
/* set base addresses */
gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_RA, context->global->memory_base);
gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_FE, context->global->memory_base);
if (gpu_read(gpu, VIVS_MMUv2_CONTROL) & VIVS_MMUv2_CONTROL_ENABLE)
return;
+ if (gpu->mmu_context)
+ etnaviv_iommu_context_put(gpu->mmu_context);
+ gpu->mmu_context = etnaviv_iommu_context_get(context);
+
prefetch = etnaviv_buffer_config_mmuv2(gpu,
(u32)v2_context->mtlb_dma,
(u32)context->global->bad_page_dma);
if (gpu_read(gpu, VIVS_MMUv2_SEC_CONTROL) & VIVS_MMUv2_SEC_CONTROL_ENABLE)
return;
+ if (gpu->mmu_context)
+ etnaviv_iommu_context_put(gpu->mmu_context);
+ gpu->mmu_context = etnaviv_iommu_context_get(context);
+
gpu_write(gpu, VIVS_MMUv2_PTA_ADDRESS_LOW,
lower_32_bits(context->global->v2.pta_dma));
gpu_write(gpu, VIVS_MMUv2_PTA_ADDRESS_HIGH,
*/
list_for_each_entry_safe(m, n, &list, scan_node) {
etnaviv_iommu_remove_mapping(context, m);
+ etnaviv_iommu_context_put(m->context);
m->context = NULL;
list_del_init(&m->mmu_node);
list_del_init(&m->scan_node);
struct etnaviv_iommu_context *
etnaviv_iommu_context_init(struct etnaviv_iommu_global *global,
struct etnaviv_cmdbuf_suballoc *suballoc);
-static inline void etnaviv_iommu_context_get(struct etnaviv_iommu_context *ctx)
+static inline struct etnaviv_iommu_context *
+etnaviv_iommu_context_get(struct etnaviv_iommu_context *ctx)
{
kref_get(&ctx->refcount);
+ return ctx;
}
void etnaviv_iommu_context_put(struct etnaviv_iommu_context *ctx);
void etnaviv_iommu_restore(struct etnaviv_gpu *gpu,
subdir-ccflags-y += $(call cc-disable-warning, unused-but-set-variable)
# clang warnings
subdir-ccflags-y += $(call cc-disable-warning, sign-compare)
-subdir-ccflags-y += $(call cc-disable-warning, sometimes-uninitialized)
subdir-ccflags-y += $(call cc-disable-warning, initializer-overrides)
subdir-ccflags-y += $(call cc-disable-warning, frame-address)
subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
struct intel_sa_info {
u16 displayrtids;
- u8 deburst, deprogbwlimit;
+ u8 deburst, deprogbwlimit, derating;
};
static const struct intel_sa_info icl_sa_info = {
.deburst = 8,
.deprogbwlimit = 25, /* GB/s */
.displayrtids = 128,
+ .derating = 10,
};
static const struct intel_sa_info tgl_sa_info = {
.deburst = 16,
.deprogbwlimit = 34, /* GB/s */
.displayrtids = 256,
+ .derating = 10,
};
static const struct intel_sa_info rkl_sa_info = {
.deburst = 16,
.deprogbwlimit = 20, /* GB/s */
.displayrtids = 128,
+ .derating = 10,
};
static const struct intel_sa_info adls_sa_info = {
.deburst = 16,
.deprogbwlimit = 38, /* GB/s */
.displayrtids = 256,
+ .derating = 10,
+};
+
+static const struct intel_sa_info adlp_sa_info = {
+ .deburst = 16,
+ .deprogbwlimit = 38, /* GB/s */
+ .displayrtids = 256,
+ .derating = 20,
};
static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa)
bw = icl_calc_bw(sp->dclk, clpchgroup * 32 * num_channels, ct);
bi->deratedbw[j] = min(maxdebw,
- bw * 9 / 10); /* 90% */
+ bw * (100 - sa->derating) / 100);
drm_dbg_kms(&dev_priv->drm,
"BW%d / QGV %d: num_planes=%d deratedbw=%u\n",
if (IS_DG2(dev_priv))
dg2_get_bw_info(dev_priv);
- else if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv))
+ else if (IS_ALDERLAKE_P(dev_priv))
+ icl_get_bw_info(dev_priv, &adlp_sa_info);
+ else if (IS_ALDERLAKE_S(dev_priv))
icl_get_bw_info(dev_priv, &adls_sa_info);
else if (IS_ROCKETLAKE(dev_priv))
icl_get_bw_info(dev_priv, &rkl_sa_info);
*/
void intel_dmc_ucode_fini(struct drm_i915_private *dev_priv)
{
+ int id;
+
if (!HAS_DMC(dev_priv))
return;
intel_dmc_ucode_suspend(dev_priv);
drm_WARN_ON(&dev_priv->drm, dev_priv->dmc.wakeref);
- kfree(dev_priv->dmc.dmc_info[DMC_FW_MAIN].payload);
+ for (id = 0; id < DMC_FW_MAX; id++)
+ kfree(dev_priv->dmc.dmc_info[id].payload);
}
*/
if (drm_dp_dpcd_read(&intel_dp->aux, DP_EDP_DPCD_REV,
intel_dp->edp_dpcd, sizeof(intel_dp->edp_dpcd)) ==
- sizeof(intel_dp->edp_dpcd))
+ sizeof(intel_dp->edp_dpcd)) {
drm_dbg_kms(&dev_priv->drm, "eDP DPCD: %*ph\n",
(int)sizeof(intel_dp->edp_dpcd),
intel_dp->edp_dpcd);
+ intel_dp->use_max_params = intel_dp->edp_dpcd[0] < DP_EDP_14;
+ }
+
/*
* This has to be called after intel_dp->edp_dpcd is filled, PSR checks
* for SET_POWER_CAPABLE bit in intel_dp->edp_dpcd[1]
}
if (ret)
- intel_dp_link_train_phy(intel_dp, crtc_state, DP_PHY_DPRX);
+ ret = intel_dp_link_train_phy(intel_dp, crtc_state, DP_PHY_DPRX);
if (intel_dp->set_idle_link_train)
intel_dp->set_idle_link_train(intel_dp, crtc_state);
trace_i915_context_free(ctx);
GEM_BUG_ON(!i915_gem_context_is_closed(ctx));
+ if (ctx->syncobj)
+ drm_syncobj_put(ctx->syncobj);
+
mutex_destroy(&ctx->engines_mutex);
mutex_destroy(&ctx->lut_mutex);
if (vm)
i915_vm_close(vm);
- if (ctx->syncobj)
- drm_syncobj_put(ctx->syncobj);
-
ctx->file_priv = ERR_PTR(-EBADF);
/*
{
struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo);
- if (likely(obj)) {
- /* This releases all gem object bindings to the backend. */
+ if (likely(obj))
i915_ttm_free_cached_io_st(obj);
- __i915_gem_free_object(obj);
- }
}
static struct intel_memory_region *
{
struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo);
+ /* This releases all gem object bindings to the backend. */
+ __i915_gem_free_object(obj);
+
i915_gem_object_release_memory_region(obj);
mutex_destroy(&obj->ttm.get_io_page.lock);
+
if (obj->ttm.created)
call_rcu(&obj->rcu, __i915_gem_free_object_rcu);
}
err = PTR_ERR(import);
goto out_dmabuf;
}
+ import_obj = to_intel_bo(import);
if (import != &obj->base) {
pr_err("i915_gem_prime_import created a new object!\n");
err = -EINVAL;
goto out_import;
}
- import_obj = to_intel_bo(import);
i915_gem_object_lock(import_obj, NULL);
err = __i915_gem_object_get_pages(import_obj);
pr_err("i915_gem_prime_import failed with the wrong err=%ld\n",
PTR_ERR(import));
err = PTR_ERR(import);
+ } else {
+ err = 0;
}
dma_buf_put(dmabuf);
err = PTR_ERR(import);
goto out_dmabuf;
}
+ import_obj = to_intel_bo(import);
if (import == &obj->base) {
pr_err("i915_gem_prime_import reused gem object!\n");
goto out_import;
}
- import_obj = to_intel_bo(import);
-
i915_gem_object_lock(import_obj, NULL);
err = __i915_gem_object_get_pages(import_obj);
if (err) {
return I915_MMAP_TYPE_GTT;
}
+static struct drm_i915_gem_object *
+create_sys_or_internal(struct drm_i915_private *i915,
+ unsigned long size)
+{
+ if (HAS_LMEM(i915)) {
+ struct intel_memory_region *sys_region =
+ i915->mm.regions[INTEL_REGION_SMEM];
+
+ return __i915_gem_object_create_user(i915, size, &sys_region, 1);
+ }
+
+ return i915_gem_object_create_internal(i915, size);
+}
+
static bool assert_mmap_offset(struct drm_i915_private *i915,
unsigned long size,
int expected)
u64 offset;
int ret;
- obj = i915_gem_object_create_internal(i915, size);
+ obj = create_sys_or_internal(i915, size);
if (IS_ERR(obj))
return expected && expected == PTR_ERR(obj);
struct drm_mm_node *hole, *next;
int loop, err = 0;
u64 offset;
+ int enospc = HAS_LMEM(i915) ? -ENXIO : -ENOSPC;
/* Disable background reaper */
disable_retire_worker(i915);
}
/* Too large */
- if (!assert_mmap_offset(i915, 2 * PAGE_SIZE, -ENOSPC)) {
+ if (!assert_mmap_offset(i915, 2 * PAGE_SIZE, enospc)) {
pr_err("Unexpectedly succeeded in inserting too large object into single page hole\n");
err = -EINVAL;
goto out;
}
/* Fill the hole, further allocation attempts should then fail */
- obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
+ obj = create_sys_or_internal(i915, PAGE_SIZE);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
pr_err("Unable to create object for reclaimed hole\n");
goto err_obj;
}
- if (!assert_mmap_offset(i915, PAGE_SIZE, -ENOSPC)) {
+ if (!assert_mmap_offset(i915, PAGE_SIZE, enospc)) {
pr_err("Unexpectedly succeeded in inserting object into no holes!\n");
err = -EINVAL;
goto err_obj;
static bool can_mmap(struct drm_i915_gem_object *obj, enum i915_mmap_type type)
{
- struct drm_i915_private *i915 = to_i915(obj->base.dev);
bool no_map;
- if (HAS_LMEM(i915))
+ if (obj->ops->mmap_offset)
return type == I915_MMAP_TYPE_FIXED;
else if (type == I915_MMAP_TYPE_FIXED)
return false;
u32 intel_rps_read_punit_req(struct intel_rps *rps)
{
struct intel_uncore *uncore = rps_to_uncore(rps);
+ struct intel_runtime_pm *rpm = rps_to_uncore(rps)->rpm;
+ intel_wakeref_t wakeref;
+ u32 freq = 0;
- return intel_uncore_read(uncore, GEN6_RPNSWREQ);
+ with_intel_runtime_pm_if_in_use(rpm, wakeref)
+ freq = intel_uncore_read(uncore, GEN6_RPNSWREQ);
+
+ return freq;
}
static u32 intel_rps_get_req(u32 pureq)
__uc_free_load_err_log(uc);
}
-static inline bool guc_communication_enabled(struct intel_guc *guc)
-{
- return intel_guc_ct_enabled(&guc->ct);
-}
-
/*
* Events triggered while CT buffers are disabled are logged in the SCRATCH_15
* register using the same bits used in the CT message payload. Since our
static void guc_handle_mmio_msg(struct intel_guc *guc)
{
/* we need communication to be enabled to reply to GuC */
- GEM_BUG_ON(!guc_communication_enabled(guc));
+ GEM_BUG_ON(!intel_guc_ct_enabled(&guc->ct));
spin_lock_irq(&guc->irq_lock);
if (guc->mmio_msg) {
struct drm_i915_private *i915 = gt->i915;
int ret;
- GEM_BUG_ON(guc_communication_enabled(guc));
+ GEM_BUG_ON(intel_guc_ct_enabled(&guc->ct));
ret = i915_inject_probe_error(i915, -ENXIO);
if (ret)
return 0;
/* Make sure we enable communication if and only if it's disabled */
- GEM_BUG_ON(enable_communication == guc_communication_enabled(guc));
+ GEM_BUG_ON(enable_communication == intel_guc_ct_enabled(&guc->ct));
if (enable_communication)
guc_enable_communication(guc);
args->v0.count = 0;
args->v0.ustate_ac = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
args->v0.ustate_dc = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
- args->v0.pwrsrc = -ENOSYS;
+ args->v0.pwrsrc = -ENODEV;
args->v0.pstate = NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_UNKNOWN;
}
#endif
if (pci_find_capability(pdev, PCI_CAP_ID_AGP))
- rdev->agp = radeon_agp_head_init(rdev->ddev);
+ rdev->agp = radeon_agp_head_init(dev);
if (rdev->agp) {
rdev->agp->agp_mtrr = arch_phys_wc_add(
rdev->agp->agp_info.aper_base,
return ret;
}
-static int cdn_dp_resume(struct device *dev)
+static __maybe_unused int cdn_dp_resume(struct device *dev)
{
struct cdn_dp_device *dp = dev_get_drvdata(dev);
else
gfp_flags |= GFP_HIGHUSER;
- for (order = min(MAX_ORDER - 1UL, __fls(num_pages)); num_pages;
+ for (order = min_t(unsigned int, MAX_ORDER - 1, __fls(num_pages));
+ num_pages;
order = min_t(unsigned int, order, __fls(num_pages))) {
bool apply_caching = false;
struct ttm_pool_type *pt;
struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector);
bool connected = false;
- WARN_ON(pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev));
-
if (vc4_hdmi->hpd_gpio &&
gpiod_get_value_cansleep(vc4_hdmi->hpd_gpio)) {
connected = true;
}
}
- pm_runtime_put(&vc4_hdmi->pdev->dev);
return connector_status_connected;
}
cec_phys_addr_invalidate(vc4_hdmi->cec_adap);
- pm_runtime_put(&vc4_hdmi->pdev->dev);
return connector_status_disconnected;
}
struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder);
struct drm_connector *connector = &vc4_hdmi->connector;
struct drm_connector_state *cstate = connector->state;
- struct drm_crtc *crtc = cstate->crtc;
+ struct drm_crtc *crtc = encoder->crtc;
const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
union hdmi_infoframe frame;
int ret;
static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)
{
+ struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
- struct drm_connector *connector = &vc4_hdmi->connector;
- struct drm_connector_state *cstate = connector->state;
- struct drm_crtc *crtc = cstate->crtc;
- struct drm_display_mode *mode = &crtc->state->adjusted_mode;
if (!vc4_hdmi_supports_scrambling(encoder, mode))
return;
static void vc4_hdmi_disable_scrambling(struct drm_encoder *encoder)
{
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
- struct drm_connector *connector = &vc4_hdmi->connector;
- struct drm_connector_state *cstate = connector->state;
+ struct drm_crtc *crtc = encoder->crtc;
/*
- * At boot, connector->state will be NULL. Since we don't know the
+ * At boot, encoder->crtc will be NULL. Since we don't know the
* state of the scrambler and in order to avoid any
* inconsistency, let's disable it all the time.
*/
- if (cstate && !vc4_hdmi_supports_scrambling(encoder, &cstate->crtc->mode))
+ if (crtc && !vc4_hdmi_supports_scrambling(encoder, &crtc->mode))
return;
- if (cstate && !vc4_hdmi_mode_needs_scrambling(&cstate->crtc->mode))
+ if (crtc && !vc4_hdmi_mode_needs_scrambling(&crtc->mode))
return;
if (delayed_work_pending(&vc4_hdmi->scrambling_work))
vc4_hdmi->variant->phy_disable(vc4_hdmi);
clk_disable_unprepare(vc4_hdmi->pixel_bvb_clock);
+ clk_disable_unprepare(vc4_hdmi->hsm_clock);
clk_disable_unprepare(vc4_hdmi->pixel_clock);
ret = pm_runtime_put(&vc4_hdmi->pdev->dev);
vc4_hdmi_encoder_get_connector_state(encoder, state);
struct vc4_hdmi_connector_state *vc4_conn_state =
conn_state_to_vc4_hdmi_conn_state(conn_state);
- struct drm_crtc_state *crtc_state =
- drm_atomic_get_new_crtc_state(state, conn_state->crtc);
- struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
unsigned long bvb_rate, pixel_rate, hsm_rate;
int ret;
return;
}
+ ret = clk_prepare_enable(vc4_hdmi->hsm_clock);
+ if (ret) {
+ DRM_ERROR("Failed to turn on HSM clock: %d\n", ret);
+ clk_disable_unprepare(vc4_hdmi->pixel_clock);
+ return;
+ }
+
vc4_hdmi_cec_update_clk_div(vc4_hdmi);
if (pixel_rate > 297000000)
ret = clk_set_min_rate(vc4_hdmi->pixel_bvb_clock, bvb_rate);
if (ret) {
DRM_ERROR("Failed to set pixel bvb clock rate: %d\n", ret);
+ clk_disable_unprepare(vc4_hdmi->hsm_clock);
clk_disable_unprepare(vc4_hdmi->pixel_clock);
return;
}
ret = clk_prepare_enable(vc4_hdmi->pixel_bvb_clock);
if (ret) {
DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret);
+ clk_disable_unprepare(vc4_hdmi->hsm_clock);
clk_disable_unprepare(vc4_hdmi->pixel_clock);
return;
}
static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder,
struct drm_atomic_state *state)
{
- struct drm_connector_state *conn_state =
- vc4_hdmi_encoder_get_connector_state(encoder, state);
- struct drm_crtc_state *crtc_state =
- drm_atomic_get_new_crtc_state(state, conn_state->crtc);
- struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder);
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder,
struct drm_atomic_state *state)
{
- struct drm_connector_state *conn_state =
- vc4_hdmi_encoder_get_connector_state(encoder, state);
- struct drm_crtc_state *crtc_state =
- drm_atomic_get_new_crtc_state(state, conn_state->crtc);
- struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder);
bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
static void vc4_hdmi_set_n_cts(struct vc4_hdmi *vc4_hdmi, unsigned int samplerate)
{
- struct drm_connector *connector = &vc4_hdmi->connector;
- struct drm_crtc *crtc = connector->state->crtc;
+ struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
+ struct drm_crtc *crtc = encoder->crtc;
const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
u32 n, cts;
u64 tmp;
static int vc4_hdmi_audio_startup(struct device *dev, void *data)
{
struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
- struct drm_connector *connector = &vc4_hdmi->connector;
+ struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
/*
* If the HDMI encoder hasn't probed, or the encoder is
* currently in DVI mode, treat the codec dai as missing.
*/
- if (!connector->state || !(HDMI_READ(HDMI_RAM_PACKET_CONFIG) &
+ if (!encoder->crtc || !(HDMI_READ(HDMI_RAM_PACKET_CONFIG) &
VC4_HDMI_RAM_PACKET_ENABLE))
return -ENODEV;
return 0;
}
-#ifdef CONFIG_PM
-static int vc4_hdmi_runtime_suspend(struct device *dev)
-{
- struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
-
- clk_disable_unprepare(vc4_hdmi->hsm_clock);
-
- return 0;
-}
-
-static int vc4_hdmi_runtime_resume(struct device *dev)
-{
- struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
- int ret;
-
- ret = clk_prepare_enable(vc4_hdmi->hsm_clock);
- if (ret)
- return ret;
-
- return 0;
-}
-#endif
-
static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
{
const struct vc4_hdmi_variant *variant = of_device_get_match_data(dev);
{}
};
-static const struct dev_pm_ops vc4_hdmi_pm_ops = {
- SET_RUNTIME_PM_OPS(vc4_hdmi_runtime_suspend,
- vc4_hdmi_runtime_resume,
- NULL)
-};
-
struct platform_driver vc4_hdmi_driver = {
.probe = vc4_hdmi_dev_probe,
.remove = vc4_hdmi_dev_remove,
.driver = {
.name = "vc4_hdmi",
.of_match_table = vc4_hdmi_dt_match,
- .pm = &vc4_hdmi_pm_ops,
},
};
if (!privdata->cl_data)
return -ENOMEM;
- rc = devm_add_action_or_reset(&pdev->dev, amd_mp2_pci_remove, privdata);
+ mp2_select_ops(privdata);
+
+ rc = amd_sfh_hid_client_init(privdata);
if (rc)
return rc;
- mp2_select_ops(privdata);
-
- return amd_sfh_hid_client_init(privdata);
+ return devm_add_action_or_reset(&pdev->dev, amd_mp2_pci_remove, privdata);
}
static int __maybe_unused amd_mp2_pci_resume(struct device *dev)
/*
* MacBook JIS keyboard has wrong logical maximum
+ * Magic Keyboard JIS has wrong logical maximum
*/
static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
+ if(*rsize >=71 && rdesc[70] == 0x65 && rdesc[64] == 0x65) {
+ hid_info(hdev,
+ "fixing up Magic Keyboard JIS report descriptor\n");
+ rdesc[64] = rdesc[70] = 0xe7;
+ }
+
if ((asc->quirks & APPLE_RDESC_JIS) && *rsize >= 60 &&
rdesc[53] == 0x65 && rdesc[59] == 0x65) {
hid_info(hdev,
{
struct betopff_device *betopff;
struct hid_report *report;
- struct hid_input *hidinput =
- list_first_entry(&hid->inputs, struct hid_input, list);
+ struct hid_input *hidinput;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
- struct input_dev *dev = hidinput->input;
+ struct input_dev *dev;
int field_count = 0;
int error;
int i, j;
+ if (list_empty(&hid->inputs)) {
+ hid_err(hid, "no inputs found\n");
+ return -ENODEV;
+ }
+
+ hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
+ dev = hidinput->input;
+
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
ret = u2fzero_recv(dev, &req, &resp);
- if (ret < 0)
+
+ /* ignore errors or packets without data */
+ if (ret < offsetof(struct u2f_hid_msg, init.data))
return 0;
/* only take the minimum amount of data it is safe to take */
{ "Wacom Intuos Pro S", 31920, 19950, 8191, 63,
INTUOSP2S_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7,
.touch_max = 10 };
+static const struct wacom_features wacom_features_0x3c6 =
+ { "Wacom Intuos BT S", 15200, 9500, 4095, 63,
+ INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
+static const struct wacom_features wacom_features_0x3c8 =
+ { "Wacom Intuos BT M", 21600, 13500, 4095, 63,
+ INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
static const struct wacom_features wacom_features_HID_ANY_ID =
{ "Wacom HID", .type = HID_GENERIC, .oVid = HID_ANY_ID, .oPid = HID_ANY_ID };
{ USB_DEVICE_WACOM(0x37A) },
{ USB_DEVICE_WACOM(0x37B) },
{ BT_DEVICE_WACOM(0x393) },
+ { BT_DEVICE_WACOM(0x3c6) },
+ { BT_DEVICE_WACOM(0x3c8) },
{ USB_DEVICE_WACOM(0x4001) },
{ USB_DEVICE_WACOM(0x4004) },
{ USB_DEVICE_WACOM(0x5000) },
mutex_unlock(&ring_info->ring_buffer_mutex);
kfree(ring_info->pkt_buffer);
+ ring_info->pkt_buffer = NULL;
ring_info->pkt_buffer_size = 0;
}
*/
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include "coresight-config.h"
#include "coresight-etm-perf.h"
config GOLDFISH_PIC
bool "Goldfish programmable interrupt controller"
depends on MIPS && (GOLDFISH || COMPILE_TEST)
+ select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
help
Say yes here to enable Goldfish interrupt controller driver used
ARMADA_370_XP_SW_TRIG_INT_OFFS);
}
-static void armada_370_xp_ipi_eoi(struct irq_data *d)
+static void armada_370_xp_ipi_ack(struct irq_data *d)
{
writel(~BIT(d->hwirq), per_cpu_int_base + ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS);
}
static struct irq_chip ipi_irqchip = {
.name = "IPI",
+ .irq_ack = armada_370_xp_ipi_ack,
.irq_mask = armada_370_xp_ipi_mask,
.irq_unmask = armada_370_xp_ipi_unmask,
- .irq_eoi = armada_370_xp_ipi_eoi,
.ipi_send_mask = armada_370_xp_ipi_send_mask,
};
if (err) {
if (i > 0)
- its_vpe_irq_domain_free(domain, virq, i - 1);
+ its_vpe_irq_domain_free(domain, virq, i);
its_lpi_free(bitmap, base, nr_ids);
its_free_prop_table(vprop_page);
#endif
+static DEFINE_STATIC_KEY_FALSE(needs_rmw_access);
+
/*
* The GIC mapping of CPU interfaces does not necessarily match
* the logical CPU numbering. Let's use a mapping as returned
#endif
#ifdef CONFIG_SMP
+static void rmw_writeb(u8 bval, void __iomem *addr)
+{
+ static DEFINE_RAW_SPINLOCK(rmw_lock);
+ unsigned long offset = (unsigned long)addr & 3UL;
+ unsigned long shift = offset * 8;
+ unsigned long flags;
+ u32 val;
+
+ raw_spin_lock_irqsave(&rmw_lock, flags);
+
+ addr -= offset;
+ val = readl_relaxed(addr);
+ val &= ~GENMASK(shift + 7, shift);
+ val |= bval << shift;
+ writel_relaxed(val, addr);
+
+ raw_spin_unlock_irqrestore(&rmw_lock, flags);
+}
+
static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
bool force)
{
if (cpu >= NR_GIC_CPU_IF || cpu >= nr_cpu_ids)
return -EINVAL;
- writeb_relaxed(gic_cpu_map[cpu], reg);
+ if (static_branch_unlikely(&needs_rmw_access))
+ rmw_writeb(gic_cpu_map[cpu], reg);
+ else
+ writeb_relaxed(gic_cpu_map[cpu], reg);
irq_data_update_effective_affinity(d, cpumask_of(cpu));
return IRQ_SET_MASK_OK_DONE;
return true;
}
+static bool gic_enable_rmw_access(void *data)
+{
+ /*
+ * The EMEV2 class of machines has a broken interconnect, and
+ * locks up on accesses that are less than 32bit. So far, only
+ * the affinity setting requires it.
+ */
+ if (of_machine_is_compatible("renesas,emev2")) {
+ static_branch_enable(&needs_rmw_access);
+ return true;
+ }
+
+ return false;
+}
+
+static const struct gic_quirk gic_quirks[] = {
+ {
+ .desc = "broken byte access",
+ .compatible = "arm,pl390",
+ .init = gic_enable_rmw_access,
+ },
+ { },
+};
+
static int gic_of_setup(struct gic_chip_data *gic, struct device_node *node)
{
if (!gic || !node)
if (of_property_read_u32(node, "cpu-offset", &gic->percpu_offset))
gic->percpu_offset = 0;
+ gic_enable_of_quirks(node, gic_quirks, gic);
+
return 0;
error:
/* The maximum IRQ pin number of mbigen chip(start from 0) */
#define MAXIMUM_IRQ_PIN_NUM 1407
-/**
+/*
* In mbigen vector register
* bit[21:12]: event id value
* bit[11:0]: device id
/* offset of vector register in mbigen node */
#define REG_MBIGEN_VEC_OFFSET 0x200
-/**
+/*
* offset of clear register in mbigen node
* This register is used to clear the status
* of interrupt
*/
#define REG_MBIGEN_CLEAR_OFFSET 0xa000
-/**
+/*
* offset of interrupt type register
* This register is used to configure interrupt
* trigger type
goto out_put_node;
}
- priv->chip.name = "rza1-irqc",
- priv->chip.irq_mask = irq_chip_mask_parent,
- priv->chip.irq_unmask = irq_chip_unmask_parent,
- priv->chip.irq_eoi = rza1_irqc_eoi,
- priv->chip.irq_retrigger = irq_chip_retrigger_hierarchy,
- priv->chip.irq_set_type = rza1_irqc_set_type,
+ priv->chip.name = "rza1-irqc";
+ priv->chip.irq_mask = irq_chip_mask_parent;
+ priv->chip.irq_unmask = irq_chip_unmask_parent;
+ priv->chip.irq_eoi = rza1_irqc_eoi;
+ priv->chip.irq_retrigger = irq_chip_retrigger_hierarchy;
+ priv->chip.irq_set_type = rza1_irqc_set_type;
priv->chip.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE;
priv->irq_domain = irq_domain_add_hierarchy(parent, 0, IRQC_NUM_IRQ,
fail_db_node:
of_node_put(smu->db_node);
fail_bootmem:
- memblock_free(__pa(smu), sizeof(struct smu_device));
+ memblock_free_ptr(smu, sizeof(struct smu_device));
smu = NULL;
fail_np:
of_node_put(np);
bus_nr = ida_simple_get(&mcb_ida, 0, 0, GFP_KERNEL);
if (bus_nr < 0) {
- rc = bus_nr;
- goto err_free;
+ kfree(bus);
+ return ERR_PTR(bus_nr);
}
bus->bus_nr = bus_nr;
dev_set_name(&bus->dev, "mcb:%d", bus_nr);
rc = device_add(&bus->dev);
if (rc)
- goto err_free;
+ goto err_put;
return bus;
-err_free:
- put_device(carrier);
- kfree(bus);
+
+err_put:
+ put_device(&bus->dev);
return ERR_PTR(rc);
}
EXPORT_SYMBOL_NS_GPL(mcb_alloc_bus, MCB);
disk->flags |= GENHD_FL_EXT_DEVT;
disk->events |= DISK_EVENT_MEDIA_CHANGE;
mddev->gendisk = disk;
- /* As soon as we call add_disk(), another thread could get
- * through to md_open, so make sure it doesn't get too far
- */
- mutex_lock(&mddev->open_mutex);
add_disk(disk);
error = kobject_add(&mddev->kobj, &disk_to_dev(disk)->kobj, "%s", "md");
if (mddev->kobj.sd &&
sysfs_create_group(&mddev->kobj, &md_bitmap_group))
pr_debug("pointless warning\n");
- mutex_unlock(&mddev->open_mutex);
abort:
mutex_unlock(&disks_mutex);
if (!error && mddev->kobj.sd) {
continue;
length = 0;
switch (c) {
- /* SOF0: baseline JPEG */
- case SOF0:
+ /* JPEG_MARKER_SOF0: baseline JPEG */
+ case JPEG_MARKER_SOF0:
if (get_word_be(&jpeg_buffer, &word))
break;
length = (long)word - 2;
notfound = 0;
break;
- case DQT:
+ case JPEG_MARKER_DQT:
if (get_word_be(&jpeg_buffer, &word))
break;
length = (long)word - 2;
skip(&jpeg_buffer, length);
break;
- case DHT:
+ case JPEG_MARKER_DHT:
if (get_word_be(&jpeg_buffer, &word))
break;
length = (long)word - 2;
skip(&jpeg_buffer, length);
break;
- case SOS:
+ case JPEG_MARKER_SOS:
sos = jpeg_buffer.curr - 2; /* 0xffda */
break;
/* skip payload-less markers */
- case RST ... RST + 7:
- case SOI:
- case EOI:
- case TEM:
+ case JPEG_MARKER_RST ... JPEG_MARKER_RST + 7:
+ case JPEG_MARKER_SOI:
+ case JPEG_MARKER_EOI:
+ case JPEG_MARKER_TEM:
break;
/* skip uninteresting payload markers */
#define EXYNOS3250_IRQ_TIMEOUT 0x10000000
/* a selection of JPEG markers */
-#define TEM 0x01
-#define SOF0 0xc0
-#define DHT 0xc4
-#define RST 0xd0
-#define SOI 0xd8
-#define EOI 0xd9
-#define SOS 0xda
-#define DQT 0xdb
-#define DHP 0xde
+#define JPEG_MARKER_TEM 0x01
+#define JPEG_MARKER_SOF0 0xc0
+#define JPEG_MARKER_DHT 0xc4
+#define JPEG_MARKER_RST 0xd0
+#define JPEG_MARKER_SOI 0xd8
+#define JPEG_MARKER_EOI 0xd9
+#define JPEG_MARKER_SOS 0xda
+#define JPEG_MARKER_DQT 0xdb
+#define JPEG_MARKER_DHP 0xde
/* Flags that indicate a format can be used for capture/output */
#define SJPEG_FMT_FLAG_ENC_CAPTURE (1 << 0)
* @fmt: driver-specific format of this queue
* @w: image width
* @h: image height
- * @sos: SOS marker's position relative to the buffer beginning
- * @dht: DHT markers' positions relative to the buffer beginning
- * @dqt: DQT markers' positions relative to the buffer beginning
- * @sof: SOF0 marker's position relative to the buffer beginning
- * @sof_len: SOF0 marker's payload length (without length field itself)
+ * @sos: JPEG_MARKER_SOS's position relative to the buffer beginning
+ * @dht: JPEG_MARKER_DHT' positions relative to the buffer beginning
+ * @dqt: JPEG_MARKER_DQT' positions relative to the buffer beginning
+ * @sof: JPEG_MARKER_SOF0's position relative to the buffer beginning
+ * @sof_len: JPEG_MARKER_SOF0's payload length (without length field itself)
* @size: image buffer size in bytes
*/
struct s5p_jpeg_q_data {
// End transmit and repeat reset command so we exit sump mode
static const u8 COMMAND_RESET[] = { 0xff, 0xff, 0, 0, 0, 0, 0 };
static const u8 COMMAND_SMODE_ENTER[] = { 's' };
+static const u8 COMMAND_SMODE_EXIT[] = { 0 };
static const u8 COMMAND_TXSTART[] = { 0x26, 0x24, 0x25, 0x03 };
#define REPLY_XMITCOUNT 't'
buf[i] = cpu_to_be16(v);
}
- buf[count] = cpu_to_be16(0xffff);
+ buf[count] = 0xffff;
irtoy->tx_buf = buf;
irtoy->tx_len = size;
irtoy->emitted = 0;
+ // There is an issue where if the unit is receiving IR while the
+ // first TXSTART command is sent, the device might end up hanging
+ // with its led on. It does not respond to any command when this
+ // happens. To work around this, re-enter sample mode.
+ err = irtoy_command(irtoy, COMMAND_SMODE_EXIT,
+ sizeof(COMMAND_SMODE_EXIT), STATE_RESET);
+ if (err) {
+ dev_err(irtoy->dev, "exit sample mode: %d\n", err);
+ return err;
+ }
+
+ err = irtoy_command(irtoy, COMMAND_SMODE_ENTER,
+ sizeof(COMMAND_SMODE_ENTER), STATE_COMMAND);
+ if (err) {
+ dev_err(irtoy->dev, "enter sample mode: %d\n", err);
+ return err;
+ }
+
err = irtoy_command(irtoy, COMMAND_TXSTART, sizeof(COMMAND_TXSTART),
STATE_TX);
kfree(buf);
struct device *tty_dev;
tty_port_init(&vk->tty[i].port);
- tty_dev = tty_port_register_device(&vk->tty[i].port, tty_drv,
- i, dev);
+ tty_dev = tty_port_register_device_attr(&vk->tty[i].port,
+ tty_drv, i, dev, vk,
+ NULL);
if (IS_ERR(tty_dev)) {
err = PTR_ERR(tty_dev);
goto unwind;
}
- dev_set_drvdata(tty_dev, vk);
vk->tty[i].is_opened = false;
}
/* check for 64-bit DMA address supported (DAC) */
/* check for 32-bit DMA address supported (SAC) */
- if (dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(64)) ||
+ if (dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(64)) &&
dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(32))) {
dev_err(&pci_dev->dev,
"err: neither DMA32 nor DMA64 supported\n");
static void cs_handle_tdr(struct hl_device *hdev, struct hl_cs *cs)
{
bool next_entry_found = false;
- struct hl_cs *next;
+ struct hl_cs *next, *first_cs;
if (!cs_needs_timeout(cs))
return;
/* We need to handle tdr only once for the complete staged submission.
* Hence, we choose the CS that reaches this function first which is
* the CS marked as 'staged_last'.
+ * In case single staged cs was submitted which has both first and last
+ * indications, then "cs_find_first" below will return NULL, since we
+ * removed the cs node from the list before getting here,
+ * in such cases just continue with the cs to cancel it's TDR work.
*/
- if (cs->staged_cs && cs->staged_last)
- cs = hl_staged_cs_find_first(hdev, cs->staged_sequence);
+ if (cs->staged_cs && cs->staged_last) {
+ first_cs = hl_staged_cs_find_first(hdev, cs->staged_sequence);
+ if (first_cs)
+ cs = first_cs;
+ }
spin_unlock(&hdev->cs_mirror_lock);
if (rc)
goto free_cs_object;
+ /* If this is a staged submission we must return the staged sequence
+ * rather than the internal CS sequence
+ */
+ if (cs->staged_cs)
+ *cs_seq = cs->staged_sequence;
+
/* Validate ALL the CS chunks before submitting the CS */
for (i = 0 ; i < num_chunks ; i++) {
struct hl_cs_chunk *chunk = &cs_chunk_array[i];
goto free_cs_chunk_array;
}
+ if (!hdev->nic_ports_mask) {
+ atomic64_inc(&ctx->cs_counters.validation_drop_cnt);
+ atomic64_inc(&cntr->validation_drop_cnt);
+ dev_err(hdev->dev,
+ "Collective operations not supported when NIC ports are disabled");
+ rc = -EINVAL;
+ goto free_cs_chunk_array;
+ }
+
collective_engine_id = chunk->collective_engine_id;
}
spin_unlock(&ctx->sig_mgr.lock);
if (!handle_found) {
- dev_err(hdev->dev, "Cannot find encapsulated signals handle for seq 0x%llx\n",
+ /* treat as signal CS already finished */
+ dev_dbg(hdev->dev, "Cannot find encapsulated signals handle for seq 0x%llx\n",
signal_seq);
- rc = -EINVAL;
+ rc = 0;
goto free_cs_chunk_array;
}
* completed after the poll function.
*/
if (!mcs_data.completion_bitmap) {
- dev_err(hdev->dev, "Multi-CS got completion on wait but no CS completed\n");
+ dev_warn_ratelimited(hdev->dev,
+ "Multi-CS got completion on wait but no CS completed\n");
rc = -EFAULT;
}
}
else
interrupt = &hdev->user_interrupt[interrupt_offset];
+ /* Add pending user interrupt to relevant list for the interrupt
+ * handler to monitor
+ */
+ spin_lock_irqsave(&interrupt->wait_list_lock, flags);
+ list_add_tail(&pend->wait_list_node, &interrupt->wait_list_head);
+ spin_unlock_irqrestore(&interrupt->wait_list_lock, flags);
+
+ /* We check for completion value as interrupt could have been received
+ * before we added the node to the wait list
+ */
if (copy_from_user(&completion_value, u64_to_user_ptr(user_address), 4)) {
dev_err(hdev->dev, "Failed to copy completion value from user\n");
rc = -EFAULT;
- goto free_fence;
+ goto remove_pending_user_interrupt;
}
if (completion_value >= target_value)
*status = CS_WAIT_STATUS_BUSY;
if (!timeout_us || (*status == CS_WAIT_STATUS_COMPLETED))
- goto free_fence;
-
- /* Add pending user interrupt to relevant list for the interrupt
- * handler to monitor
- */
- spin_lock_irqsave(&interrupt->wait_list_lock, flags);
- list_add_tail(&pend->wait_list_node, &interrupt->wait_list_head);
- spin_unlock_irqrestore(&interrupt->wait_list_lock, flags);
+ goto remove_pending_user_interrupt;
wait_again:
/* Wait for interrupt handler to signal completion */
* If comparison fails, keep waiting until timeout expires
*/
if (completion_rc > 0) {
+ spin_lock_irqsave(&interrupt->wait_list_lock, flags);
+ /* reinit_completion must be called before we check for user
+ * completion value, otherwise, if interrupt is received after
+ * the comparison and before the next wait_for_completion,
+ * we will reach timeout and fail
+ */
+ reinit_completion(&pend->fence.completion);
+ spin_unlock_irqrestore(&interrupt->wait_list_lock, flags);
+
if (copy_from_user(&completion_value, u64_to_user_ptr(user_address), 4)) {
dev_err(hdev->dev, "Failed to copy completion value from user\n");
rc = -EFAULT;
if (completion_value >= target_value) {
*status = CS_WAIT_STATUS_COMPLETED;
} else {
- spin_lock_irqsave(&interrupt->wait_list_lock, flags);
- reinit_completion(&pend->fence.completion);
timeout = completion_rc;
-
- spin_unlock_irqrestore(&interrupt->wait_list_lock, flags);
goto wait_again;
}
} else if (completion_rc == -ERESTARTSYS) {
list_del(&pend->wait_list_node);
spin_unlock_irqrestore(&interrupt->wait_list_lock, flags);
-free_fence:
kfree(pend);
hl_ctx_put(ctx);
struct hl_cs_compl *cs_cmpl)
{
struct hl_cs_encaps_sig_handle *handle = cs->encaps_sig_hdl;
+ u32 offset = 0;
cs_cmpl->hw_sob = handle->hw_sob;
* set offset 1 for example he mean to wait only for the first
* signal only, which will be pre_sob_val, and if he set offset 2
* then the value required is (pre_sob_val + 1) and so on...
+ * if user set wait offset to 0, then treat it as legacy wait cs,
+ * wait for the next signal.
*/
- cs_cmpl->sob_val = handle->pre_sob_val +
- (job->encaps_sig_wait_offset - 1);
+ if (job->encaps_sig_wait_offset)
+ offset = job->encaps_sig_wait_offset - 1;
+
+ cs_cmpl->sob_val = handle->pre_sob_val + offset;
}
static int init_wait_cs(struct hl_device *hdev, struct hl_cs *cs,
static struct hl_hw_obj_name_entry gaudi_monitor_id_to_str[] = {
{ .id = 200, .name = "MON_OBJ_DMA_DOWN_FEEDBACK_RESET" },
- { .id = 201, .name = "MON_OBJ_DMA_UP_FEADBACK_RESET" },
+ { .id = 201, .name = "MON_OBJ_DMA_UP_FEEDBACK_RESET" },
{ .id = 203, .name = "MON_OBJ_DRAM_TO_SRAM_QUEUE_FENCE" },
{ .id = 204, .name = "MON_OBJ_TPC_0_CLK_GATE" },
{ .id = 205, .name = "MON_OBJ_TPC_1_CLK_GATE" },
{
struct gaudi_device *gaudi = hdev->asic_specific;
struct packet_msg_prot *cq_pkt;
+ u64 msi_addr;
u32 tmp;
cq_pkt = kernel_address + len - (sizeof(struct packet_msg_prot) * 2);
cq_pkt->ctl = cpu_to_le32(tmp);
cq_pkt->value = cpu_to_le32(1);
- if (!gaudi->multi_msi_mode)
- msi_vec = 0;
+ if (gaudi->multi_msi_mode)
+ msi_addr = mmPCIE_MSI_INTR_0 + msi_vec * 4;
+ else
+ msi_addr = mmPCIE_CORE_MSI_REQ;
- cq_pkt->addr = cpu_to_le64(CFG_BASE + mmPCIE_MSI_INTR_0 + msi_vec * 4);
+ cq_pkt->addr = cpu_to_le64(CFG_BASE + msi_addr);
}
static void gaudi_update_eq_ci(struct hl_device *hdev, u32 val)
#include "gaudiP.h"
#include "../include/gaudi/asic_reg/gaudi_regs.h"
-#define GAUDI_NUMBER_OF_RR_REGS 24
-#define GAUDI_NUMBER_OF_LBW_RANGES 12
+#define GAUDI_NUMBER_OF_LBW_RR_REGS 28
+#define GAUDI_NUMBER_OF_HBW_RR_REGS 24
+#define GAUDI_NUMBER_OF_LBW_RANGES 10
-static u64 gaudi_rr_lbw_hit_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_hit_aw_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+ mmDMA_IF_W_S_SOB_HIT_WPROT,
mmDMA_IF_W_S_DMA0_HIT_WPROT,
mmDMA_IF_W_S_DMA1_HIT_WPROT,
+ mmDMA_IF_E_S_SOB_HIT_WPROT,
mmDMA_IF_E_S_DMA0_HIT_WPROT,
mmDMA_IF_E_S_DMA1_HIT_WPROT,
+ mmDMA_IF_W_N_SOB_HIT_WPROT,
mmDMA_IF_W_N_DMA0_HIT_WPROT,
mmDMA_IF_W_N_DMA1_HIT_WPROT,
+ mmDMA_IF_E_N_SOB_HIT_WPROT,
mmDMA_IF_E_N_DMA0_HIT_WPROT,
mmDMA_IF_E_N_DMA1_HIT_WPROT,
mmSIF_RTR_0_LBW_RANGE_PROT_HIT_AW,
mmNIF_RTR_7_LBW_RANGE_PROT_HIT_AW,
};
-static u64 gaudi_rr_lbw_hit_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_hit_ar_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+ mmDMA_IF_W_S_SOB_HIT_RPROT,
mmDMA_IF_W_S_DMA0_HIT_RPROT,
mmDMA_IF_W_S_DMA1_HIT_RPROT,
+ mmDMA_IF_E_S_SOB_HIT_RPROT,
mmDMA_IF_E_S_DMA0_HIT_RPROT,
mmDMA_IF_E_S_DMA1_HIT_RPROT,
+ mmDMA_IF_W_N_SOB_HIT_RPROT,
mmDMA_IF_W_N_DMA0_HIT_RPROT,
mmDMA_IF_W_N_DMA1_HIT_RPROT,
+ mmDMA_IF_E_N_SOB_HIT_RPROT,
mmDMA_IF_E_N_DMA0_HIT_RPROT,
mmDMA_IF_E_N_DMA1_HIT_RPROT,
mmSIF_RTR_0_LBW_RANGE_PROT_HIT_AR,
mmNIF_RTR_7_LBW_RANGE_PROT_HIT_AR,
};
-static u64 gaudi_rr_lbw_min_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_min_aw_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+ mmDMA_IF_W_S_SOB_MIN_WPROT_0,
mmDMA_IF_W_S_DMA0_MIN_WPROT_0,
mmDMA_IF_W_S_DMA1_MIN_WPROT_0,
+ mmDMA_IF_E_S_SOB_MIN_WPROT_0,
mmDMA_IF_E_S_DMA0_MIN_WPROT_0,
mmDMA_IF_E_S_DMA1_MIN_WPROT_0,
+ mmDMA_IF_W_N_SOB_MIN_WPROT_0,
mmDMA_IF_W_N_DMA0_MIN_WPROT_0,
mmDMA_IF_W_N_DMA1_MIN_WPROT_0,
+ mmDMA_IF_E_N_SOB_MIN_WPROT_0,
mmDMA_IF_E_N_DMA0_MIN_WPROT_0,
mmDMA_IF_E_N_DMA1_MIN_WPROT_0,
mmSIF_RTR_0_LBW_RANGE_PROT_MIN_AW_0,
mmNIF_RTR_7_LBW_RANGE_PROT_MIN_AW_0,
};
-static u64 gaudi_rr_lbw_max_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_max_aw_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+ mmDMA_IF_W_S_SOB_MAX_WPROT_0,
mmDMA_IF_W_S_DMA0_MAX_WPROT_0,
mmDMA_IF_W_S_DMA1_MAX_WPROT_0,
+ mmDMA_IF_E_S_SOB_MAX_WPROT_0,
mmDMA_IF_E_S_DMA0_MAX_WPROT_0,
mmDMA_IF_E_S_DMA1_MAX_WPROT_0,
+ mmDMA_IF_W_N_SOB_MAX_WPROT_0,
mmDMA_IF_W_N_DMA0_MAX_WPROT_0,
mmDMA_IF_W_N_DMA1_MAX_WPROT_0,
+ mmDMA_IF_E_N_SOB_MAX_WPROT_0,
mmDMA_IF_E_N_DMA0_MAX_WPROT_0,
mmDMA_IF_E_N_DMA1_MAX_WPROT_0,
mmSIF_RTR_0_LBW_RANGE_PROT_MAX_AW_0,
mmNIF_RTR_7_LBW_RANGE_PROT_MAX_AW_0,
};
-static u64 gaudi_rr_lbw_min_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_min_ar_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+ mmDMA_IF_W_S_SOB_MIN_RPROT_0,
mmDMA_IF_W_S_DMA0_MIN_RPROT_0,
mmDMA_IF_W_S_DMA1_MIN_RPROT_0,
+ mmDMA_IF_E_S_SOB_MIN_RPROT_0,
mmDMA_IF_E_S_DMA0_MIN_RPROT_0,
mmDMA_IF_E_S_DMA1_MIN_RPROT_0,
+ mmDMA_IF_W_N_SOB_MIN_RPROT_0,
mmDMA_IF_W_N_DMA0_MIN_RPROT_0,
mmDMA_IF_W_N_DMA1_MIN_RPROT_0,
+ mmDMA_IF_E_N_SOB_MIN_RPROT_0,
mmDMA_IF_E_N_DMA0_MIN_RPROT_0,
mmDMA_IF_E_N_DMA1_MIN_RPROT_0,
mmSIF_RTR_0_LBW_RANGE_PROT_MIN_AR_0,
mmNIF_RTR_7_LBW_RANGE_PROT_MIN_AR_0,
};
-static u64 gaudi_rr_lbw_max_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_max_ar_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+ mmDMA_IF_W_S_SOB_MAX_RPROT_0,
mmDMA_IF_W_S_DMA0_MAX_RPROT_0,
mmDMA_IF_W_S_DMA1_MAX_RPROT_0,
+ mmDMA_IF_E_S_SOB_MAX_RPROT_0,
mmDMA_IF_E_S_DMA0_MAX_RPROT_0,
mmDMA_IF_E_S_DMA1_MAX_RPROT_0,
+ mmDMA_IF_W_N_SOB_MAX_RPROT_0,
mmDMA_IF_W_N_DMA0_MAX_RPROT_0,
mmDMA_IF_W_N_DMA1_MAX_RPROT_0,
+ mmDMA_IF_E_N_SOB_MAX_RPROT_0,
mmDMA_IF_E_N_DMA0_MAX_RPROT_0,
mmDMA_IF_E_N_DMA1_MAX_RPROT_0,
mmSIF_RTR_0_LBW_RANGE_PROT_MAX_AR_0,
mmNIF_RTR_7_LBW_RANGE_PROT_MAX_AR_0,
};
-static u64 gaudi_rr_hbw_hit_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_hit_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_HIT_AW,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_HIT_AW,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_HIT_AW,
mmNIF_RTR_CTRL_7_RANGE_SEC_HIT_AW
};
-static u64 gaudi_rr_hbw_hit_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_hit_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_HIT_AR,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_HIT_AR,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_HIT_AR,
mmNIF_RTR_CTRL_7_RANGE_SEC_HIT_AR
};
-static u64 gaudi_rr_hbw_base_low_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_low_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AW_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_LOW_AW_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AW_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_LOW_AW_0
};
-static u64 gaudi_rr_hbw_base_high_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_high_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AW_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_HIGH_AW_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AW_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_HIGH_AW_0
};
-static u64 gaudi_rr_hbw_mask_low_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_low_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AW_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_LOW_AW_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AW_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_MASK_LOW_AW_0
};
-static u64 gaudi_rr_hbw_mask_high_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_high_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AW_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_HIGH_AW_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AW_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_MASK_HIGH_AW_0
};
-static u64 gaudi_rr_hbw_base_low_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_low_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AR_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_LOW_AR_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AR_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_LOW_AR_0
};
-static u64 gaudi_rr_hbw_base_high_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_high_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AR_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_HIGH_AR_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AR_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_HIGH_AR_0
};
-static u64 gaudi_rr_hbw_mask_low_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_low_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AR_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_LOW_AR_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AR_0,
mmNIF_RTR_CTRL_7_RANGE_SEC_MASK_LOW_AR_0
};
-static u64 gaudi_rr_hbw_mask_high_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_high_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AR_0,
mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_HIGH_AR_0,
mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AR_0,
u32 lbw_rng_end[GAUDI_NUMBER_OF_LBW_RANGES];
int i, j;
- lbw_rng_start[0] = (0xFBFE0000 & 0x3FFFFFF) - 1;
- lbw_rng_end[0] = (0xFBFFF000 & 0x3FFFFFF) + 1;
+ lbw_rng_start[0] = (0xFC0E8000 & 0x3FFFFFF) - 1; /* 0x000E7FFF */
+ lbw_rng_end[0] = (0xFC11FFFF & 0x3FFFFFF) + 1; /* 0x00120000 */
- lbw_rng_start[1] = (0xFC0E8000 & 0x3FFFFFF) - 1;
- lbw_rng_end[1] = (0xFC120000 & 0x3FFFFFF) + 1;
+ lbw_rng_start[1] = (0xFC1E8000 & 0x3FFFFFF) - 1; /* 0x001E7FFF */
+ lbw_rng_end[1] = (0xFC48FFFF & 0x3FFFFFF) + 1; /* 0x00490000 */
- lbw_rng_start[2] = (0xFC1E8000 & 0x3FFFFFF) - 1;
- lbw_rng_end[2] = (0xFC48FFFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[2] = (0xFC600000 & 0x3FFFFFF) - 1; /* 0x005FFFFF */
+ lbw_rng_end[2] = (0xFCC48FFF & 0x3FFFFFF) + 1; /* 0x00C49000 */
- lbw_rng_start[3] = (0xFC600000 & 0x3FFFFFF) - 1;
- lbw_rng_end[3] = (0xFCC48FFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[3] = (0xFCC4A000 & 0x3FFFFFF) - 1; /* 0x00C49FFF */
+ lbw_rng_end[3] = (0xFCCDFFFF & 0x3FFFFFF) + 1; /* 0x00CE0000 */
- lbw_rng_start[4] = (0xFCC4A000 & 0x3FFFFFF) - 1;
- lbw_rng_end[4] = (0xFCCDFFFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[4] = (0xFCCE4000 & 0x3FFFFFF) - 1; /* 0x00CE3FFF */
+ lbw_rng_end[4] = (0xFCD1FFFF & 0x3FFFFFF) + 1; /* 0x00D20000 */
- lbw_rng_start[5] = (0xFCCE4000 & 0x3FFFFFF) - 1;
- lbw_rng_end[5] = (0xFCD1FFFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[5] = (0xFCD24000 & 0x3FFFFFF) - 1; /* 0x00D23FFF */
+ lbw_rng_end[5] = (0xFCD5FFFF & 0x3FFFFFF) + 1; /* 0x00D60000 */
- lbw_rng_start[6] = (0xFCD24000 & 0x3FFFFFF) - 1;
- lbw_rng_end[6] = (0xFCD5FFFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[6] = (0xFCD64000 & 0x3FFFFFF) - 1; /* 0x00D63FFF */
+ lbw_rng_end[6] = (0xFCD9FFFF & 0x3FFFFFF) + 1; /* 0x00DA0000 */
- lbw_rng_start[7] = (0xFCD64000 & 0x3FFFFFF) - 1;
- lbw_rng_end[7] = (0xFCD9FFFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[7] = (0xFCDA4000 & 0x3FFFFFF) - 1; /* 0x00DA3FFF */
+ lbw_rng_end[7] = (0xFCDDFFFF & 0x3FFFFFF) + 1; /* 0x00DE0000 */
- lbw_rng_start[8] = (0xFCDA4000 & 0x3FFFFFF) - 1;
- lbw_rng_end[8] = (0xFCDDFFFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[8] = (0xFCDE4000 & 0x3FFFFFF) - 1; /* 0x00DE3FFF */
+ lbw_rng_end[8] = (0xFCE05FFF & 0x3FFFFFF) + 1; /* 0x00E06000 */
- lbw_rng_start[9] = (0xFCDE4000 & 0x3FFFFFF) - 1;
- lbw_rng_end[9] = (0xFCE05FFF & 0x3FFFFFF) + 1;
+ lbw_rng_start[9] = (0xFCFC9000 & 0x3FFFFFF) - 1; /* 0x00FC8FFF */
+ lbw_rng_end[9] = (0xFFFFFFFE & 0x3FFFFFF) + 1; /* 0x03FFFFFF */
- lbw_rng_start[10] = (0xFEC43000 & 0x3FFFFFF) - 1;
- lbw_rng_end[10] = (0xFEC43FFF & 0x3FFFFFF) + 1;
-
- lbw_rng_start[11] = (0xFE484000 & 0x3FFFFFF) - 1;
- lbw_rng_end[11] = (0xFE484FFF & 0x3FFFFFF) + 1;
-
- for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++) {
+ for (i = 0 ; i < GAUDI_NUMBER_OF_LBW_RR_REGS ; i++) {
WREG32(gaudi_rr_lbw_hit_aw_regs[i],
(1 << GAUDI_NUMBER_OF_LBW_RANGES) - 1);
WREG32(gaudi_rr_lbw_hit_ar_regs[i],
(1 << GAUDI_NUMBER_OF_LBW_RANGES) - 1);
}
- for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++)
+ for (i = 0 ; i < GAUDI_NUMBER_OF_LBW_RR_REGS ; i++)
for (j = 0 ; j < GAUDI_NUMBER_OF_LBW_RANGES ; j++) {
WREG32(gaudi_rr_lbw_min_aw_regs[i] + (j << 2),
lbw_rng_start[j]);
* 6th range is the host
*/
- for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++) {
+ for (i = 0 ; i < GAUDI_NUMBER_OF_HBW_RR_REGS ; i++) {
WREG32(gaudi_rr_hbw_hit_aw_regs[i], 0x1F);
WREG32(gaudi_rr_hbw_hit_ar_regs[i], 0x1D);
}
- for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++) {
+ for (i = 0 ; i < GAUDI_NUMBER_OF_HBW_RR_REGS ; i++) {
WREG32(gaudi_rr_hbw_base_low_aw_regs[i], dram_addr_lo);
WREG32(gaudi_rr_hbw_base_low_ar_regs[i], dram_addr_lo);
#define mmPCIE_AUX_FLR_CTRL 0xC07394
#define mmPCIE_AUX_DBI 0xC07490
+#define mmPCIE_CORE_MSI_REQ 0xC04100
+
#define mmPSOC_PCI_PLL_NR 0xC72100
#define mmSRAM_W_PLL_NR 0x4C8100
#define mmPSOC_HBM_PLL_NR 0xC74100
spin_lock_irqsave(&host->irq_lock, flags);
- if (!host->data_status)
+ /*
+ * Only inject an error if we haven't already got an error or data over
+ * interrupt.
+ */
+ if (!host->data_status) {
host->data_status = SDMMC_INT_DCRC;
- set_bit(EVENT_DATA_ERROR, &host->pending_events);
- tasklet_schedule(&host->tasklet);
+ set_bit(EVENT_DATA_ERROR, &host->pending_events);
+ tasklet_schedule(&host->tasklet);
+ }
spin_unlock_irqrestore(&host->irq_lock, flags);
}
if (pending & DW_MCI_DATA_ERROR_FLAGS) {
+ spin_lock(&host->irq_lock);
+
/* if there is an error report DATA_ERROR */
mci_writel(host, RINTSTS, DW_MCI_DATA_ERROR_FLAGS);
host->data_status = pending;
smp_wmb(); /* drain writebuffer */
set_bit(EVENT_DATA_ERROR, &host->pending_events);
tasklet_schedule(&host->tasklet);
+
+ spin_unlock(&host->irq_lock);
}
if (pending & SDMMC_INT_DATA_OVER) {
/* Unknown why but without polling reset status, it will hang */
read_poll_timeout(reset_control_status, ret, ret == 0, 1, 100,
false, priv->rstc);
+ /* At least SDHI_VER_GEN2_SDR50 needs manual release of reset */
+ sd_ctrl_write16(host, CTL_RESET_SD, 0x0001);
priv->needs_adjust_hs400 = false;
renesas_sdhi_set_clock(host, host->clk_cache);
} else if (priv->scc_ctl) {
static void b53_mdio_remove(struct mdio_device *mdiodev)
{
struct b53_device *dev = dev_get_drvdata(&mdiodev->dev);
- struct dsa_switch *ds = dev->ds;
- dsa_unregister_switch(ds);
+ if (!dev)
+ return;
+
+ b53_switch_remove(dev);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void b53_mdio_shutdown(struct mdio_device *mdiodev)
+{
+ struct b53_device *dev = dev_get_drvdata(&mdiodev->dev);
+
+ if (!dev)
+ return;
+
+ b53_switch_shutdown(dev);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static const struct of_device_id b53_of_match[] = {
static struct mdio_driver b53_mdio_driver = {
.probe = b53_mdio_probe,
.remove = b53_mdio_remove,
+ .shutdown = b53_mdio_shutdown,
.mdiodrv.driver = {
.name = "bcm53xx",
.of_match_table = b53_of_match,
if (dev)
b53_switch_remove(dev);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
+static void b53_mmap_shutdown(struct platform_device *pdev)
+{
+ struct b53_device *dev = platform_get_drvdata(pdev);
+
+ if (dev)
+ b53_switch_shutdown(dev);
+
+ platform_set_drvdata(pdev, NULL);
+}
+
static const struct of_device_id b53_mmap_of_table[] = {
{ .compatible = "brcm,bcm3384-switch" },
{ .compatible = "brcm,bcm6328-switch" },
static struct platform_driver b53_mmap_driver = {
.probe = b53_mmap_probe,
.remove = b53_mmap_remove,
+ .shutdown = b53_mmap_shutdown,
.driver = {
.name = "b53-switch",
.of_match_table = b53_mmap_of_table,
dsa_unregister_switch(dev->ds);
}
+static inline void b53_switch_shutdown(struct b53_device *dev)
+{
+ dsa_switch_shutdown(dev->ds);
+}
+
#define b53_build_op(type_op_size, val_type) \
static inline int b53_##type_op_size(struct b53_device *dev, u8 page, \
u8 reg, val_type val) \
if (dev)
b53_switch_remove(dev);
+ spi_set_drvdata(spi, NULL);
+
return 0;
}
+static void b53_spi_shutdown(struct spi_device *spi)
+{
+ struct b53_device *dev = spi_get_drvdata(spi);
+
+ if (dev)
+ b53_switch_shutdown(dev);
+
+ spi_set_drvdata(spi, NULL);
+}
+
static const struct of_device_id b53_spi_of_match[] = {
{ .compatible = "brcm,bcm5325" },
{ .compatible = "brcm,bcm5365" },
},
.probe = b53_spi_probe,
.remove = b53_spi_remove,
+ .shutdown = b53_spi_shutdown,
};
module_spi_driver(b53_spi_driver);
static int b53_srab_remove(struct platform_device *pdev)
{
struct b53_device *dev = platform_get_drvdata(pdev);
- struct b53_srab_priv *priv = dev->priv;
- b53_srab_intr_set(priv, false);
+ if (!dev)
+ return 0;
+
+ b53_srab_intr_set(dev->priv, false);
b53_switch_remove(dev);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
+static void b53_srab_shutdown(struct platform_device *pdev)
+{
+ struct b53_device *dev = platform_get_drvdata(pdev);
+
+ if (!dev)
+ return;
+
+ b53_switch_shutdown(dev);
+
+ platform_set_drvdata(pdev, NULL);
+}
+
static struct platform_driver b53_srab_driver = {
.probe = b53_srab_probe,
.remove = b53_srab_remove,
+ .shutdown = b53_srab_shutdown,
.driver = {
.name = "b53-srab-switch",
.of_match_table = b53_srab_of_match,
struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
unsigned int port, count = 0;
- for (port = 0; port < ARRAY_SIZE(priv->port_sts); port++) {
+ for (port = 0; port < ds->num_ports; port++) {
if (dsa_is_cpu_port(ds, port))
continue;
if (priv->port_sts[port].enabled)
{
struct bcm_sf2_priv *priv = platform_get_drvdata(pdev);
+ if (!priv)
+ return 0;
+
priv->wol_ports_mask = 0;
/* Disable interrupts */
bcm_sf2_intr_disable(priv);
if (priv->type == BCM7278_DEVICE_ID)
reset_control_assert(priv->rcdev);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
{
struct bcm_sf2_priv *priv = platform_get_drvdata(pdev);
+ if (!priv)
+ return;
+
/* For a kernel about to be kexec'd we want to keep the GPHY on for a
* successful MDIO bus scan to occur. If we did turn off the GPHY
* before (e.g: port_disable), this will also power it back on.
*/
if (priv->hw_params.num_gphy == 1)
bcm_sf2_gphy_enable_set(priv->dev->ds, true);
+
+ dsa_switch_shutdown(priv->dev->ds);
+
+ platform_set_drvdata(pdev, NULL);
}
#ifdef CONFIG_PM_SLEEP
static void dsa_loop_drv_remove(struct mdio_device *mdiodev)
{
struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
- struct dsa_loop_priv *ps = ds->priv;
+ struct dsa_loop_priv *ps;
+
+ if (!ds)
+ return;
+
+ ps = ds->priv;
dsa_unregister_switch(ds);
dev_put(ps->netdev);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void dsa_loop_drv_shutdown(struct mdio_device *mdiodev)
+{
+ struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
+
+ if (!ds)
+ return;
+
+ dsa_switch_shutdown(ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static struct mdio_driver dsa_loop_drv = {
},
.probe = dsa_loop_drv_probe,
.remove = dsa_loop_drv_remove,
+ .shutdown = dsa_loop_drv_shutdown,
};
#define NUM_FIXED_PHYS (DSA_LOOP_NUM_PORTS - 2)
{
struct hellcreek *hellcreek = platform_get_drvdata(pdev);
+ if (!hellcreek)
+ return 0;
+
hellcreek_hwtstamp_free(hellcreek);
hellcreek_ptp_free(hellcreek);
dsa_unregister_switch(hellcreek->ds);
return 0;
}
+static void hellcreek_shutdown(struct platform_device *pdev)
+{
+ struct hellcreek *hellcreek = platform_get_drvdata(pdev);
+
+ if (!hellcreek)
+ return;
+
+ dsa_switch_shutdown(hellcreek->ds);
+
+ platform_set_drvdata(pdev, NULL);
+}
+
static const struct hellcreek_platform_data de1soc_r1_pdata = {
.name = "r4c30",
.num_ports = 4,
static struct platform_driver hellcreek_driver = {
.probe = hellcreek_probe,
.remove = hellcreek_remove,
+ .shutdown = hellcreek_shutdown,
.driver = {
.name = "hellcreek",
.of_match_table = hellcreek_of_match,
}
EXPORT_SYMBOL(lan9303_remove);
+void lan9303_shutdown(struct lan9303 *chip)
+{
+ dsa_switch_shutdown(chip->ds);
+}
+EXPORT_SYMBOL(lan9303_shutdown);
+
MODULE_AUTHOR("Juergen Borleis <kernel@pengutronix.de>");
MODULE_DESCRIPTION("Core driver for SMSC/Microchip LAN9303 three port ethernet switch");
MODULE_LICENSE("GPL v2");
int lan9303_probe(struct lan9303 *chip, struct device_node *np);
int lan9303_remove(struct lan9303 *chip);
+void lan9303_shutdown(struct lan9303 *chip);
static int lan9303_i2c_remove(struct i2c_client *client)
{
- struct lan9303_i2c *sw_dev;
+ struct lan9303_i2c *sw_dev = i2c_get_clientdata(client);
- sw_dev = i2c_get_clientdata(client);
if (!sw_dev)
- return -ENODEV;
+ return 0;
+
+ lan9303_remove(&sw_dev->chip);
+
+ i2c_set_clientdata(client, NULL);
+
+ return 0;
+}
+
+static void lan9303_i2c_shutdown(struct i2c_client *client)
+{
+ struct lan9303_i2c *sw_dev = i2c_get_clientdata(client);
+
+ if (!sw_dev)
+ return;
+
+ lan9303_shutdown(&sw_dev->chip);
- return lan9303_remove(&sw_dev->chip);
+ i2c_set_clientdata(client, NULL);
}
/*-------------------------------------------------------------------------*/
},
.probe = lan9303_i2c_probe,
.remove = lan9303_i2c_remove,
+ .shutdown = lan9303_i2c_shutdown,
.id_table = lan9303_i2c_id,
};
module_i2c_driver(lan9303_i2c_driver);
return;
lan9303_remove(&sw_dev->chip);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void lan9303_mdio_shutdown(struct mdio_device *mdiodev)
+{
+ struct lan9303_mdio *sw_dev = dev_get_drvdata(&mdiodev->dev);
+
+ if (!sw_dev)
+ return;
+
+ lan9303_shutdown(&sw_dev->chip);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
/*-------------------------------------------------------------------------*/
},
.probe = lan9303_mdio_probe,
.remove = lan9303_mdio_remove,
+ .shutdown = lan9303_mdio_shutdown,
};
mdio_module_driver(lan9303_mdio_driver);
reset_control_assert(gphy_fw->reset);
+ /* The vendor BSP uses a 200ms delay after asserting the reset line.
+ * Without this some users are observing that the PHY is not coming up
+ * on the MDIO bus.
+ */
+ msleep(200);
+
ret = request_firmware(&fw, gphy_fw->fw_name, dev);
if (ret) {
dev_err(dev, "failed to load firmware: %s, error: %i\n",
struct gswip_priv *priv = platform_get_drvdata(pdev);
int i;
+ if (!priv)
+ return 0;
+
/* disable the switch */
gswip_mdio_mask(priv, GSWIP_MDIO_GLOB_ENABLE, 0, GSWIP_MDIO_GLOB);
for (i = 0; i < priv->num_gphy_fw; i++)
gswip_gphy_fw_remove(priv, &priv->gphy_fw[i]);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
+static void gswip_shutdown(struct platform_device *pdev)
+{
+ struct gswip_priv *priv = platform_get_drvdata(pdev);
+
+ if (!priv)
+ return;
+
+ dsa_switch_shutdown(priv->ds);
+
+ platform_set_drvdata(pdev, NULL);
+}
+
static const struct gswip_hw_info gswip_xrx200 = {
.max_ports = 7,
.cpu_port = 6,
static struct platform_driver gswip_driver = {
.probe = gswip_probe,
.remove = gswip_remove,
+ .shutdown = gswip_shutdown,
.driver = {
.name = "gswip",
.of_match_table = gswip_of_match,
if (dev)
ksz_switch_remove(dev);
+ spi_set_drvdata(spi, NULL);
+
return 0;
}
{
struct ksz_device *dev = spi_get_drvdata(spi);
- if (dev && dev->dev_ops->shutdown)
+ if (!dev)
+ return;
+
+ if (dev->dev_ops->shutdown)
dev->dev_ops->shutdown(dev);
+
+ dsa_switch_shutdown(dev->ds);
+
+ spi_set_drvdata(spi, NULL);
}
static const struct of_device_id ksz8795_dt_ids[] = {
if (dev)
ksz_switch_remove(dev);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void ksz8863_smi_shutdown(struct mdio_device *mdiodev)
+{
+ struct ksz_device *dev = dev_get_drvdata(&mdiodev->dev);
+
+ if (dev)
+ dsa_switch_shutdown(dev->ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static const struct of_device_id ksz8863_dt_ids[] = {
static struct mdio_driver ksz8863_driver = {
.probe = ksz8863_smi_probe,
.remove = ksz8863_smi_remove,
+ .shutdown = ksz8863_smi_shutdown,
.mdiodrv.driver = {
.name = "ksz8863-switch",
.of_match_table = ksz8863_dt_ids,
{
struct ksz_device *dev = i2c_get_clientdata(i2c);
- ksz_switch_remove(dev);
+ if (dev)
+ ksz_switch_remove(dev);
+
+ i2c_set_clientdata(i2c, NULL);
return 0;
}
{
struct ksz_device *dev = i2c_get_clientdata(i2c);
- if (dev && dev->dev_ops->shutdown)
+ if (!dev)
+ return;
+
+ if (dev->dev_ops->shutdown)
dev->dev_ops->shutdown(dev);
+
+ dsa_switch_shutdown(dev->ds);
+
+ i2c_set_clientdata(i2c, NULL);
}
static const struct i2c_device_id ksz9477_i2c_id[] = {
if (dev)
ksz_switch_remove(dev);
+ spi_set_drvdata(spi, NULL);
+
return 0;
}
{
struct ksz_device *dev = spi_get_drvdata(spi);
- if (dev && dev->dev_ops->shutdown)
- dev->dev_ops->shutdown(dev);
+ if (dev)
+ dsa_switch_shutdown(dev->ds);
+
+ spi_set_drvdata(spi, NULL);
}
static const struct of_device_id ksz9477_dt_ids[] = {
struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
int ret = 0;
+ if (!priv)
+ return;
+
ret = regulator_disable(priv->core_pwr);
if (ret < 0)
dev_err(priv->dev,
dsa_unregister_switch(priv->ds);
mutex_destroy(&priv->reg_mutex);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void mt7530_shutdown(struct mdio_device *mdiodev)
+{
+ struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
+
+ if (!priv)
+ return;
+
+ dsa_switch_shutdown(priv->ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static struct mdio_driver mt7530_mdio_driver = {
.probe = mt7530_probe,
.remove = mt7530_remove,
+ .shutdown = mt7530_shutdown,
.mdiodrv.driver = {
.name = "mt7530",
.of_match_table = mt7530_of_match,
{
struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
+ if (!ds)
+ return;
+
dsa_unregister_switch(ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void mv88e6060_shutdown(struct mdio_device *mdiodev)
+{
+ struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
+
+ if (!ds)
+ return;
+
+ dsa_switch_shutdown(ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static const struct of_device_id mv88e6060_of_match[] = {
static struct mdio_driver mv88e6060_driver = {
.probe = mv88e6060_probe,
.remove = mv88e6060_remove,
+ .shutdown = mv88e6060_shutdown,
.mdiodrv.driver = {
.name = "mv88e6060",
.of_match_table = mv88e6060_of_match,
{
mv88e6xxx_teardown_devlink_params(ds);
dsa_devlink_resources_unregister(ds);
- mv88e6xxx_teardown_devlink_regions(ds);
+ mv88e6xxx_teardown_devlink_regions_global(ds);
}
static int mv88e6xxx_setup(struct dsa_switch *ds)
if (err)
goto out_resources;
- err = mv88e6xxx_setup_devlink_regions(ds);
+ err = mv88e6xxx_setup_devlink_regions_global(ds);
if (err)
goto out_params;
return err;
}
+static int mv88e6xxx_port_setup(struct dsa_switch *ds, int port)
+{
+ return mv88e6xxx_setup_devlink_regions_port(ds, port);
+}
+
+static void mv88e6xxx_port_teardown(struct dsa_switch *ds, int port)
+{
+ mv88e6xxx_teardown_devlink_regions_port(ds, port);
+}
+
/* prod_id for switch families which do not have a PHY model number */
static const u16 family_prod_id_table[] = {
[MV88E6XXX_FAMILY_6341] = MV88E6XXX_PORT_SWITCH_ID_PROD_6341,
.change_tag_protocol = mv88e6xxx_change_tag_protocol,
.setup = mv88e6xxx_setup,
.teardown = mv88e6xxx_teardown,
+ .port_setup = mv88e6xxx_port_setup,
+ .port_teardown = mv88e6xxx_port_teardown,
.phylink_validate = mv88e6xxx_validate,
.phylink_mac_link_state = mv88e6xxx_serdes_pcs_get_state,
.phylink_mac_config = mv88e6xxx_mac_config,
static void mv88e6xxx_remove(struct mdio_device *mdiodev)
{
struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
- struct mv88e6xxx_chip *chip = ds->priv;
+ struct mv88e6xxx_chip *chip;
+
+ if (!ds)
+ return;
+
+ chip = ds->priv;
if (chip->info->ptp_support) {
mv88e6xxx_hwtstamp_free(chip);
mv88e6xxx_g1_irq_free(chip);
else
mv88e6xxx_irq_poll_free(chip);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void mv88e6xxx_shutdown(struct mdio_device *mdiodev)
+{
+ struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
+
+ if (!ds)
+ return;
+
+ dsa_switch_shutdown(ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static const struct of_device_id mv88e6xxx_of_match[] = {
static struct mdio_driver mv88e6xxx_driver = {
.probe = mv88e6xxx_probe,
.remove = mv88e6xxx_remove,
+ .shutdown = mv88e6xxx_shutdown,
.mdiodrv.driver = {
.name = "mv88e6085",
.of_match_table = mv88e6xxx_of_match,
},
};
-static void
-mv88e6xxx_teardown_devlink_regions_global(struct mv88e6xxx_chip *chip)
+void mv88e6xxx_teardown_devlink_regions_global(struct dsa_switch *ds)
{
+ struct mv88e6xxx_chip *chip = ds->priv;
int i;
for (i = 0; i < ARRAY_SIZE(mv88e6xxx_regions); i++)
dsa_devlink_region_destroy(chip->regions[i]);
}
-static void
-mv88e6xxx_teardown_devlink_regions_port(struct mv88e6xxx_chip *chip,
- int port)
+void mv88e6xxx_teardown_devlink_regions_port(struct dsa_switch *ds, int port)
{
+ struct mv88e6xxx_chip *chip = ds->priv;
+
dsa_devlink_region_destroy(chip->ports[port].region);
}
-static int mv88e6xxx_setup_devlink_regions_port(struct dsa_switch *ds,
- struct mv88e6xxx_chip *chip,
- int port)
+int mv88e6xxx_setup_devlink_regions_port(struct dsa_switch *ds, int port)
{
+ struct mv88e6xxx_chip *chip = ds->priv;
struct devlink_region *region;
region = dsa_devlink_port_region_create(ds,
return 0;
}
-static void
-mv88e6xxx_teardown_devlink_regions_ports(struct mv88e6xxx_chip *chip)
-{
- int port;
-
- for (port = 0; port < mv88e6xxx_num_ports(chip); port++)
- mv88e6xxx_teardown_devlink_regions_port(chip, port);
-}
-
-static int mv88e6xxx_setup_devlink_regions_ports(struct dsa_switch *ds,
- struct mv88e6xxx_chip *chip)
-{
- int port;
- int err;
-
- for (port = 0; port < mv88e6xxx_num_ports(chip); port++) {
- err = mv88e6xxx_setup_devlink_regions_port(ds, chip, port);
- if (err)
- goto out;
- }
-
- return 0;
-
-out:
- while (port-- > 0)
- mv88e6xxx_teardown_devlink_regions_port(chip, port);
-
- return err;
-}
-
-static int mv88e6xxx_setup_devlink_regions_global(struct dsa_switch *ds,
- struct mv88e6xxx_chip *chip)
+int mv88e6xxx_setup_devlink_regions_global(struct dsa_switch *ds)
{
bool (*cond)(struct mv88e6xxx_chip *chip);
+ struct mv88e6xxx_chip *chip = ds->priv;
struct devlink_region_ops *ops;
struct devlink_region *region;
u64 size;
return PTR_ERR(region);
}
-int mv88e6xxx_setup_devlink_regions(struct dsa_switch *ds)
-{
- struct mv88e6xxx_chip *chip = ds->priv;
- int err;
-
- err = mv88e6xxx_setup_devlink_regions_global(ds, chip);
- if (err)
- return err;
-
- err = mv88e6xxx_setup_devlink_regions_ports(ds, chip);
- if (err)
- mv88e6xxx_teardown_devlink_regions_global(chip);
-
- return err;
-}
-
-void mv88e6xxx_teardown_devlink_regions(struct dsa_switch *ds)
-{
- struct mv88e6xxx_chip *chip = ds->priv;
-
- mv88e6xxx_teardown_devlink_regions_ports(chip);
- mv88e6xxx_teardown_devlink_regions_global(chip);
-}
-
int mv88e6xxx_devlink_info_get(struct dsa_switch *ds,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
struct devlink_param_gset_ctx *ctx);
int mv88e6xxx_devlink_param_set(struct dsa_switch *ds, u32 id,
struct devlink_param_gset_ctx *ctx);
-int mv88e6xxx_setup_devlink_regions(struct dsa_switch *ds);
-void mv88e6xxx_teardown_devlink_regions(struct dsa_switch *ds);
+int mv88e6xxx_setup_devlink_regions_global(struct dsa_switch *ds);
+void mv88e6xxx_teardown_devlink_regions_global(struct dsa_switch *ds);
+int mv88e6xxx_setup_devlink_regions_port(struct dsa_switch *ds, int port);
+void mv88e6xxx_teardown_devlink_regions_port(struct dsa_switch *ds, int port);
int mv88e6xxx_devlink_info_get(struct dsa_switch *ds,
struct devlink_info_req *req,
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2019-2021 NXP Semiconductors
+/* Copyright 2019-2021 NXP
*
* This is an umbrella module for all network switches that are
* register-compatible with Ocelot and that perform I/O to their host CPU
/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright 2019 NXP Semiconductors
+/* Copyright 2019 NXP
*/
#ifndef _MSCC_FELIX_H
#define _MSCC_FELIX_H
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Copyright 2017 Microsemi Corporation
- * Copyright 2018-2019 NXP Semiconductors
+ * Copyright 2018-2019 NXP
*/
#include <linux/fsl/enetc_mdio.h>
#include <soc/mscc/ocelot_qsys.h>
static void felix_pci_remove(struct pci_dev *pdev)
{
- struct felix *felix;
+ struct felix *felix = pci_get_drvdata(pdev);
- felix = pci_get_drvdata(pdev);
+ if (!felix)
+ return;
dsa_unregister_switch(felix->ds);
kfree(felix);
pci_disable_device(pdev);
+
+ pci_set_drvdata(pdev, NULL);
+}
+
+static void felix_pci_shutdown(struct pci_dev *pdev)
+{
+ struct felix *felix = pci_get_drvdata(pdev);
+
+ if (!felix)
+ return;
+
+ dsa_switch_shutdown(felix->ds);
+
+ pci_set_drvdata(pdev, NULL);
}
static struct pci_device_id felix_ids[] = {
.id_table = felix_ids,
.probe = felix_pci_probe,
.remove = felix_pci_remove,
+ .shutdown = felix_pci_shutdown,
};
module_pci_driver(felix_vsc9959_pci_driver);
static int seville_remove(struct platform_device *pdev)
{
- struct felix *felix;
+ struct felix *felix = platform_get_drvdata(pdev);
- felix = platform_get_drvdata(pdev);
+ if (!felix)
+ return 0;
dsa_unregister_switch(felix->ds);
kfree(felix->ds);
kfree(felix);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
+static void seville_shutdown(struct platform_device *pdev)
+{
+ struct felix *felix = platform_get_drvdata(pdev);
+
+ if (!felix)
+ return;
+
+ dsa_switch_shutdown(felix->ds);
+
+ platform_set_drvdata(pdev, NULL);
+}
+
static const struct of_device_id seville_of_match[] = {
{ .compatible = "mscc,vsc9953-switch" },
{ },
static struct platform_driver seville_vsc9953_driver = {
.probe = seville_probe,
.remove = seville_remove,
+ .shutdown = seville_shutdown,
.driver = {
.name = "mscc_seville",
.of_match_table = of_match_ptr(seville_of_match),
struct ar9331_sw_priv *priv = dev_get_drvdata(&mdiodev->dev);
unsigned int i;
+ if (!priv)
+ return;
+
for (i = 0; i < ARRAY_SIZE(priv->port); i++) {
struct ar9331_sw_port *port = &priv->port[i];
dsa_unregister_switch(&priv->ds);
reset_control_assert(priv->sw_reset);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void ar9331_sw_shutdown(struct mdio_device *mdiodev)
+{
+ struct ar9331_sw_priv *priv = dev_get_drvdata(&mdiodev->dev);
+
+ if (!priv)
+ return;
+
+ dsa_switch_shutdown(&priv->ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static const struct of_device_id ar9331_sw_of_match[] = {
static struct mdio_driver ar9331_sw_mdio_driver = {
.probe = ar9331_sw_probe,
.remove = ar9331_sw_remove,
+ .shutdown = ar9331_sw_shutdown,
.mdiodrv.driver = {
.name = AR9331_SW_NAME,
.of_match_table = ar9331_sw_of_match,
}
static int
-qca8k_mdio_write(struct mii_bus *salve_bus, int phy, int regnum, u16 data)
+qca8k_mdio_write(struct mii_bus *bus, int phy, int regnum, u16 data)
{
- struct qca8k_priv *priv = salve_bus->priv;
- struct mii_bus *bus = priv->bus;
u16 r1, r2, page;
u32 val;
int ret;
}
static int
-qca8k_mdio_read(struct mii_bus *salve_bus, int phy, int regnum)
+qca8k_mdio_read(struct mii_bus *bus, int phy, int regnum)
{
- struct qca8k_priv *priv = salve_bus->priv;
- struct mii_bus *bus = priv->bus;
u16 r1, r2, page;
u32 val;
int ret;
}
static int
+qca8k_internal_mdio_write(struct mii_bus *slave_bus, int phy, int regnum, u16 data)
+{
+ struct qca8k_priv *priv = slave_bus->priv;
+ struct mii_bus *bus = priv->bus;
+
+ return qca8k_mdio_write(bus, phy, regnum, data);
+}
+
+static int
+qca8k_internal_mdio_read(struct mii_bus *slave_bus, int phy, int regnum)
+{
+ struct qca8k_priv *priv = slave_bus->priv;
+ struct mii_bus *bus = priv->bus;
+
+ return qca8k_mdio_read(bus, phy, regnum);
+}
+
+static int
qca8k_phy_write(struct dsa_switch *ds, int port, int regnum, u16 data)
{
struct qca8k_priv *priv = ds->priv;
bus->priv = (void *)priv;
bus->name = "qca8k slave mii";
- bus->read = qca8k_mdio_read;
- bus->write = qca8k_mdio_write;
+ bus->read = qca8k_internal_mdio_read;
+ bus->write = qca8k_internal_mdio_write;
snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d",
ds->index);
struct qca8k_priv *priv = dev_get_drvdata(&mdiodev->dev);
int i;
+ if (!priv)
+ return;
+
for (i = 0; i < QCA8K_NUM_PORTS; i++)
qca8k_port_set_status(priv, i, 0);
dsa_unregister_switch(priv->ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void qca8k_sw_shutdown(struct mdio_device *mdiodev)
+{
+ struct qca8k_priv *priv = dev_get_drvdata(&mdiodev->dev);
+
+ if (!priv)
+ return;
+
+ dsa_switch_shutdown(priv->ds);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
#ifdef CONFIG_PM_SLEEP
static struct mdio_driver qca8kmdio_driver = {
.probe = qca8k_sw_probe,
.remove = qca8k_sw_remove,
+ .shutdown = qca8k_sw_shutdown,
.mdiodrv.driver = {
.name = "qca8k",
.of_match_table = qca8k_of_match,
smi->slave_mii_bus->parent = smi->dev;
smi->ds->slave_mii_bus = smi->slave_mii_bus;
- ret = of_mdiobus_register(smi->slave_mii_bus, mdio_np);
+ ret = devm_of_mdiobus_register(smi->dev, smi->slave_mii_bus, mdio_np);
if (ret) {
dev_err(smi->dev, "unable to register MDIO bus %s\n",
smi->slave_mii_bus->id);
static int realtek_smi_remove(struct platform_device *pdev)
{
- struct realtek_smi *smi = dev_get_drvdata(&pdev->dev);
+ struct realtek_smi *smi = platform_get_drvdata(pdev);
+
+ if (!smi)
+ return 0;
dsa_unregister_switch(smi->ds);
if (smi->slave_mii_bus)
of_node_put(smi->slave_mii_bus->dev.of_node);
gpiod_set_value(smi->reset, 1);
+ platform_set_drvdata(pdev, NULL);
+
return 0;
}
+static void realtek_smi_shutdown(struct platform_device *pdev)
+{
+ struct realtek_smi *smi = platform_get_drvdata(pdev);
+
+ if (!smi)
+ return;
+
+ dsa_switch_shutdown(smi->ds);
+
+ platform_set_drvdata(pdev, NULL);
+}
+
static const struct of_device_id realtek_smi_of_match[] = {
{
.compatible = "realtek,rtl8366rb",
},
.probe = realtek_smi_probe,
.remove = realtek_smi_remove,
+ .shutdown = realtek_smi_shutdown,
};
module_platform_driver(realtek_smi_driver);
// SPDX-License-Identifier: BSD-3-Clause
-/* Copyright (c) 2016-2018, NXP Semiconductors
+/* Copyright 2016-2018 NXP
* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
#include <linux/packing.h>
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
- * Copyright 2020 NXP Semiconductors
+ * Copyright 2020 NXP
*/
#include "sja1105.h"
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2020, NXP Semiconductors
+/* Copyright 2020 NXP
*/
#include "sja1105.h"
#include "sja1105_vl.h"
static int sja1105_remove(struct spi_device *spi)
{
struct sja1105_private *priv = spi_get_drvdata(spi);
- struct dsa_switch *ds = priv->ds;
- dsa_unregister_switch(ds);
+ if (!priv)
+ return 0;
+
+ dsa_unregister_switch(priv->ds);
+
+ spi_set_drvdata(spi, NULL);
return 0;
}
+static void sja1105_shutdown(struct spi_device *spi)
+{
+ struct sja1105_private *priv = spi_get_drvdata(spi);
+
+ if (!priv)
+ return;
+
+ dsa_switch_shutdown(priv->ds);
+
+ spi_set_drvdata(spi, NULL);
+}
+
static const struct of_device_id sja1105_dt_ids[] = {
{ .compatible = "nxp,sja1105e", .data = &sja1105e_info },
{ .compatible = "nxp,sja1105t", .data = &sja1105t_info },
},
.probe = sja1105_probe,
.remove = sja1105_remove,
+ .shutdown = sja1105_shutdown,
};
module_spi_driver(sja1105_driver);
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2021, NXP Semiconductors
+/* Copyright 2021 NXP
*/
#include <linux/pcs/pcs-xpcs.h>
#include <linux/of_mdio.h>
// SPDX-License-Identifier: BSD-3-Clause
-/* Copyright (c) 2016-2018, NXP Semiconductors
+/* Copyright 2016-2018 NXP
* Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
// SPDX-License-Identifier: BSD-3-Clause
-/* Copyright (c) 2016-2018, NXP Semiconductors
+/* Copyright 2016-2018 NXP
* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
#include "sja1105_static_config.h"
/* SPDX-License-Identifier: BSD-3-Clause */
-/* Copyright (c) 2016-2018, NXP Semiconductors
+/* Copyright 2016-2018 NXP
* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
#ifndef _SJA1105_STATIC_CONFIG_H
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2020, NXP Semiconductors
+/* Copyright 2020 NXP
*/
#include <net/tc_act/tc_gate.h>
#include <linux/dsa/8021q.h>
/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright 2020, NXP Semiconductors
+/* Copyright 2020 NXP
*/
#ifndef _SJA1105_VL_H
#define _SJA1105_VL_H
}
EXPORT_SYMBOL(vsc73xx_remove);
+void vsc73xx_shutdown(struct vsc73xx *vsc)
+{
+ dsa_switch_shutdown(vsc->ds);
+}
+EXPORT_SYMBOL(vsc73xx_shutdown);
+
MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
MODULE_DESCRIPTION("Vitesse VSC7385/7388/7395/7398 driver");
MODULE_LICENSE("GPL v2");
{
struct vsc73xx_platform *vsc_platform = platform_get_drvdata(pdev);
- return vsc73xx_remove(&vsc_platform->vsc);
+ if (!vsc_platform)
+ return 0;
+
+ vsc73xx_remove(&vsc_platform->vsc);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static void vsc73xx_platform_shutdown(struct platform_device *pdev)
+{
+ struct vsc73xx_platform *vsc_platform = platform_get_drvdata(pdev);
+
+ if (!vsc_platform)
+ return;
+
+ vsc73xx_shutdown(&vsc_platform->vsc);
+
+ platform_set_drvdata(pdev, NULL);
}
static const struct vsc73xx_ops vsc73xx_platform_ops = {
static struct platform_driver vsc73xx_platform_driver = {
.probe = vsc73xx_platform_probe,
.remove = vsc73xx_platform_remove,
+ .shutdown = vsc73xx_platform_shutdown,
.driver = {
.name = "vsc73xx-platform",
.of_match_table = vsc73xx_of_match,
{
struct vsc73xx_spi *vsc_spi = spi_get_drvdata(spi);
- return vsc73xx_remove(&vsc_spi->vsc);
+ if (!vsc_spi)
+ return 0;
+
+ vsc73xx_remove(&vsc_spi->vsc);
+
+ spi_set_drvdata(spi, NULL);
+
+ return 0;
+}
+
+static void vsc73xx_spi_shutdown(struct spi_device *spi)
+{
+ struct vsc73xx_spi *vsc_spi = spi_get_drvdata(spi);
+
+ if (!vsc_spi)
+ return;
+
+ vsc73xx_shutdown(&vsc_spi->vsc);
+
+ spi_set_drvdata(spi, NULL);
}
static const struct vsc73xx_ops vsc73xx_spi_ops = {
static struct spi_driver vsc73xx_spi_driver = {
.probe = vsc73xx_spi_probe,
.remove = vsc73xx_spi_remove,
+ .shutdown = vsc73xx_spi_shutdown,
.driver = {
.name = "vsc73xx-spi",
.of_match_table = vsc73xx_of_match,
int vsc73xx_is_addr_valid(u8 block, u8 subblock);
int vsc73xx_probe(struct vsc73xx *vsc);
int vsc73xx_remove(struct vsc73xx *vsc);
+void vsc73xx_shutdown(struct vsc73xx *vsc);
}
EXPORT_SYMBOL(xrs700x_switch_remove);
+void xrs700x_switch_shutdown(struct xrs700x *priv)
+{
+ dsa_switch_shutdown(priv->ds);
+}
+EXPORT_SYMBOL(xrs700x_switch_shutdown);
+
MODULE_AUTHOR("George McCollister <george.mccollister@gmail.com>");
MODULE_DESCRIPTION("Arrow SpeedChips XRS700x DSA driver");
MODULE_LICENSE("GPL v2");
struct xrs700x *xrs700x_switch_alloc(struct device *base, void *devpriv);
int xrs700x_switch_register(struct xrs700x *priv);
void xrs700x_switch_remove(struct xrs700x *priv);
+void xrs700x_switch_shutdown(struct xrs700x *priv);
{
struct xrs700x *priv = i2c_get_clientdata(i2c);
+ if (!priv)
+ return 0;
+
xrs700x_switch_remove(priv);
+ i2c_set_clientdata(i2c, NULL);
+
return 0;
}
+static void xrs700x_i2c_shutdown(struct i2c_client *i2c)
+{
+ struct xrs700x *priv = i2c_get_clientdata(i2c);
+
+ if (!priv)
+ return;
+
+ xrs700x_switch_shutdown(priv);
+
+ i2c_set_clientdata(i2c, NULL);
+}
+
static const struct i2c_device_id xrs700x_i2c_id[] = {
{ "xrs700x-switch", 0 },
{},
},
.probe = xrs700x_i2c_probe,
.remove = xrs700x_i2c_remove,
+ .shutdown = xrs700x_i2c_shutdown,
.id_table = xrs700x_i2c_id,
};
{
struct xrs700x *priv = dev_get_drvdata(&mdiodev->dev);
+ if (!priv)
+ return;
+
xrs700x_switch_remove(priv);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
+}
+
+static void xrs700x_mdio_shutdown(struct mdio_device *mdiodev)
+{
+ struct xrs700x *priv = dev_get_drvdata(&mdiodev->dev);
+
+ if (!priv)
+ return;
+
+ xrs700x_switch_shutdown(priv);
+
+ dev_set_drvdata(&mdiodev->dev, NULL);
}
static const struct of_device_id __maybe_unused xrs700x_mdio_dt_ids[] = {
},
.probe = xrs700x_mdio_probe,
.remove = xrs700x_mdio_remove,
+ .shutdown = xrs700x_mdio_shutdown,
};
mdio_module_driver(xrs700x_mdio_driver);
#ifdef VORTEX_BUS_MASTER
if (vp->bus_master) {
/* Set the bus-master controller to transfer the packet. */
- outl((int) (skb->data), ioaddr + Wn7_MasterAddr);
+ outl(isa_virt_to_bus(skb->data), ioaddr + Wn7_MasterAddr);
outw((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen);
vp->tx_skb = skb;
outw(StartDMADown, ioaddr + EL3_CMD);
}
}
-#ifdef MODULE
static int __init ne_init(void)
{
int retval;
- ne_add_devices();
+
+ if (IS_MODULE(CONFIG_NE2000))
+ ne_add_devices();
+
retval = platform_driver_probe(&ne_driver, ne_drv_probe);
- if (retval) {
+
+ if (IS_MODULE(CONFIG_NE2000) && retval) {
if (io[0] == 0)
pr_notice("ne.c: You must supply \"io=0xNNN\""
" value(s) for ISA cards.\n");
return retval;
}
module_init(ne_init);
-#else /* MODULE */
-static int __init ne_init(void)
-{
- int retval = platform_driver_probe(&ne_driver, ne_drv_probe);
-
- /* Unregister unused platform_devices. */
- ne_loop_rm_unreg(0);
- return retval;
-}
-module_init(ne_init);
-#ifdef CONFIG_NETDEV_LEGACY_INIT
+#if !defined(MODULE) && defined(CONFIG_NETDEV_LEGACY_INIT)
struct net_device * __init ne_probe(int unit)
{
int this_dev;
return ERR_PTR(-ENODEV);
}
#endif
-#endif /* MODULE */
static void __exit ne_exit(void)
{
#ifdef XMT_VIA_SKB
skb_save[i] = p->tmd_skb[i];
#endif
- buffer[i] = (u32) isa_bus_to_virt(tmdp->u.buffer);
+ buffer[i] = (unsigned long)isa_bus_to_virt(tmdp->u.buffer);
blen[i] = tmdp->blen;
tmdp->u.s.status = 0x0;
}
if (deep) {
/* Reinitialize Nic/Vecs objects */
aq_nic_deinit(nic, !nic->aq_hw->aq_nic_cfg->wol);
+ }
+ if (netif_running(nic->ndev)) {
ret = aq_nic_init(nic);
if (ret)
goto err_exit;
- }
- if (netif_running(nic->ndev)) {
ret = aq_nic_start(nic);
if (ret)
goto err_exit;
bcma_set_drvdata(core, bgmac);
err = of_get_mac_address(bgmac->dev->of_node, bgmac->net_dev->dev_addr);
+ if (err == -EPROBE_DEFER)
+ return err;
/* If no MAC address assigned via device tree, check SPROM */
if (err) {
/* SR-IOV capability was enabled but there are no VFs*/
if (iov->total == 0) {
- err = -EINVAL;
+ err = 0;
goto failed;
}
* netif_tx_queue_stopped().
*/
smp_mb();
- if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh) {
+ if (bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh) {
netif_tx_wake_queue(txq);
return false;
}
smp_mb();
if (unlikely(netif_tx_queue_stopped(txq)) &&
- bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh &&
+ bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh &&
READ_ONCE(txr->dev_state) != BNXT_DEV_STATE_CLOSING)
netif_tx_wake_queue(txq);
}
DIV_ROUND_UP(fw_health->polling_dsecs * HZ,
bp->current_interval * 10);
fw_health->tmr_counter = fw_health->tmr_multiplier;
- if (!fw_health->enabled) {
+ if (!fw_health->enabled)
fw_health->last_fw_heartbeat =
bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
- fw_health->last_fw_reset_cnt =
- bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
- }
+ fw_health->last_fw_reset_cnt =
+ bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
netif_info(bp, drv, bp->dev,
"Error recovery info: error recovery[1], master[%d], reset count[%u], health status: 0x%x\n",
fw_health->master, fw_health->last_fw_reset_cnt,
if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
tx_pkts++;
/* return full budget so NAPI will complete. */
- if (unlikely(tx_pkts > bp->tx_wake_thresh)) {
+ if (unlikely(tx_pkts >= bp->tx_wake_thresh)) {
rx_pkts = budget;
raw_cons = NEXT_RAW_CMP(raw_cons);
if (budget)
struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
int j;
+ if (!txr->tx_buf_ring)
+ continue;
+
for (j = 0; j < max_idx;) {
struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
struct sk_buff *skb;
}
skip_rx_tpa_free:
+ if (!rxr->rx_buf_ring)
+ goto skip_rx_buf_free;
+
for (i = 0; i < max_idx; i++) {
struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[i];
dma_addr_t mapping = rx_buf->mapping;
kfree(data);
}
}
+
+skip_rx_buf_free:
+ if (!rxr->rx_agg_ring)
+ goto skip_rx_agg_free;
+
for (i = 0; i < max_agg_idx; i++) {
struct bnxt_sw_rx_agg_bd *rx_agg_buf = &rxr->rx_agg_ring[i];
struct page *page = rx_agg_buf->page;
__free_page(page);
}
+
+skip_rx_agg_free:
if (rxr->rx_page) {
__free_page(rxr->rx_page);
rxr->rx_page = NULL;
struct pci_dev *pdev = bp->pdev;
int i;
+ if (!rmem->pg_arr)
+ goto skip_pages;
+
for (i = 0; i < rmem->nr_pages; i++) {
if (!rmem->pg_arr[i])
continue;
rmem->pg_arr[i] = NULL;
}
+skip_pages:
if (rmem->pg_tbl) {
size_t pg_tbl_size = rmem->nr_pages * 8;
static void bnxt_free_cp_arrays(struct bnxt_cp_ring_info *cpr)
{
+ struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
+
kfree(cpr->cp_desc_ring);
cpr->cp_desc_ring = NULL;
+ ring->ring_mem.pg_arr = NULL;
kfree(cpr->cp_desc_mapping);
cpr->cp_desc_mapping = NULL;
+ ring->ring_mem.dma_arr = NULL;
}
static int bnxt_alloc_cp_arrays(struct bnxt_cp_ring_info *cpr, int n)
u16 i;
bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2,
- MAX_SKB_FRAGS + 1);
+ BNXT_MIN_TX_DESC_CNT);
for (i = 0; i < bp->tx_nr_rings; i++) {
struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
return;
}
+ if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) &&
+ bp->fw_health->enabled) {
+ bp->fw_health->last_fw_reset_cnt =
+ bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
+ }
bp->fw_reset_state = 0;
/* Make sure fw_reset_state is 0 before clearing the flag */
smp_mb__before_atomic();
#define BNXT_MAX_RX_JUM_DESC_CNT (RX_DESC_CNT * MAX_RX_AGG_PAGES - 1)
#define BNXT_MAX_TX_DESC_CNT (TX_DESC_CNT * MAX_TX_PAGES - 1)
+/* Minimum TX BDs for a TX packet with MAX_SKB_FRAGS + 1. We need one extra
+ * BD because the first TX BD is always a long BD.
+ */
+#define BNXT_MIN_TX_DESC_CNT (MAX_SKB_FRAGS + 2)
+
#define RX_RING(x) (((x) & ~(RX_DESC_CNT - 1)) >> (BNXT_PAGE_SHIFT - 4))
#define RX_IDX(x) ((x) & (RX_DESC_CNT - 1))
if ((ering->rx_pending > BNXT_MAX_RX_DESC_CNT) ||
(ering->tx_pending > BNXT_MAX_TX_DESC_CNT) ||
- (ering->tx_pending <= MAX_SKB_FRAGS))
+ (ering->tx_pending < BNXT_MIN_TX_DESC_CNT))
return -EINVAL;
if (netif_running(dev))
{
struct bnxt_flower_indr_block_cb_priv *cb_priv;
- /* All callback list access should be protected by RTNL. */
- ASSERT_RTNL();
-
list_for_each_entry(cb_priv, &bp->tc_indr_block_list, list)
if (cb_priv->tunnel_netdev == netdev)
return cb_priv;
struct platform_device *plat_dev = pci_get_drvdata(pdev);
struct macb_platform_data *plat_data = dev_get_platdata(&plat_dev->dev);
- platform_device_unregister(plat_dev);
clk_unregister(plat_data->pclk);
clk_unregister(plat_data->hclk);
+ platform_device_unregister(plat_dev);
}
static const struct pci_device_id dev_id_table[] = {
static void enetc_rx_net_dim(struct enetc_int_vector *v)
{
- struct dim_sample dim_sample;
+ struct dim_sample dim_sample = {};
v->comp_cnt++;
static int enetc_setup_irqs(struct enetc_ndev_priv *priv)
{
struct pci_dev *pdev = priv->si->pdev;
- cpumask_t cpu_mask;
int i, j, err;
for (i = 0; i < priv->bdr_int_num; i++) {
enetc_wr(hw, ENETC_SIMSITRV(idx), entry);
}
- cpumask_clear(&cpu_mask);
- cpumask_set_cpu(i % num_online_cpus(), &cpu_mask);
- irq_set_affinity_hint(irq, &cpu_mask);
+ irq_set_affinity_hint(irq, get_cpu_mask(i % num_online_cpus()));
}
return 0;
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-/* Copyright 2021 NXP Semiconductors
+/* Copyright 2021 NXP
*
* The Integrated Endpoint Register Block (IERB) is configured by pre-boot
* software and is supposed to be to ENETC what a NVRAM is to a 'real' PCIe
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
-/* Copyright 2021 NXP Semiconductors */
+/* Copyright 2021 NXP */
#include <linux/pci.h>
#include <linux/platform_device.h>
module_platform_driver(fec_driver);
-MODULE_ALIAS("platform:"DRIVER_NAME);
MODULE_LICENSE("GPL");
module_param(tx_sgl, uint, 0600);
MODULE_PARM_DESC(tx_sgl, "Minimum number of frags when using dma_map_sg() to optimize the IOMMU mapping");
+static bool page_pool_enabled = true;
+module_param(page_pool_enabled, bool, 0400);
+
#define HNS3_SGL_SIZE(nfrag) (sizeof(struct scatterlist) * (nfrag) + \
sizeof(struct sg_table))
#define HNS3_MAX_SGL_SIZE ALIGN(HNS3_SGL_SIZE(HNS3_MAX_TSO_BD_NUM), \
#define HNS3_OUTER_VLAN_TAG 2
#define HNS3_MIN_TX_LEN 33U
+#define HNS3_MIN_TUN_PKT_LEN 65U
/* hns3_pci_tbl - PCI Device ID Table
*
l4.tcp->doff);
break;
case IPPROTO_UDP:
- if (hns3_tunnel_csum_bug(skb))
- return skb_checksum_help(skb);
+ if (hns3_tunnel_csum_bug(skb)) {
+ int ret = skb_put_padto(skb, HNS3_MIN_TUN_PKT_LEN);
+
+ return ret ? ret : skb_checksum_help(skb);
+ }
hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
hns3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4T_S,
goto out_with_desc_cb;
if (!HNAE3_IS_TX_RING(ring)) {
- hns3_alloc_page_pool(ring);
+ if (page_pool_enabled)
+ hns3_alloc_page_pool(ring);
ret = hns3_alloc_ring_buffers(ring);
if (ret)
}
bd_num = le32_to_cpu(req->bd_num);
+ if (!bd_num) {
+ dev_err(&hdev->pdev->dev, "imp statistics bd number is 0!\n");
+ return -EINVAL;
+ }
desc_src = kcalloc(bd_num, sizeof(struct hclge_desc), GFP_KERNEL);
if (!desc_src)
return;
}
- dev_err(dev, "PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found, vf_id(%u), queue_id(%u)\n",
+ dev_err(dev, "PPU_PF_ABNORMAL_INT_ST over_8bd_no_fe found, vport(%u), queue_id(%u)\n",
vf_id, q_id);
if (vf_id) {
if (vf_id >= hdev->num_alloc_vport) {
- dev_err(dev, "invalid vf id(%u)\n", vf_id);
+ dev_err(dev, "invalid vport(%u)\n", vf_id);
return;
}
ret = hclge_inform_reset_assert_to_vf(&hdev->vport[vf_id]);
if (ret)
- dev_err(dev, "inform reset to vf(%u) failed %d!\n",
- hdev->vport->vport_id, ret);
+ dev_err(dev, "inform reset to vport(%u) failed %d!\n",
+ vf_id, ret);
} else {
set_bit(HNAE3_FUNC_RESET, reset_requests);
}
static int hclge_configure(struct hclge_dev *hdev)
{
struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev);
+ const struct cpumask *cpumask = cpu_online_mask;
struct hclge_cfg cfg;
unsigned int i;
- int ret;
+ int node, ret;
ret = hclge_get_cfg(hdev, &cfg);
if (ret)
hclge_init_kdump_kernel_config(hdev);
- /* Set the init affinity based on pci func number */
- i = cpumask_weight(cpumask_of_node(dev_to_node(&hdev->pdev->dev)));
- i = i ? PCI_FUNC(hdev->pdev->devfn) % i : 0;
- cpumask_set_cpu(cpumask_local_spread(i, dev_to_node(&hdev->pdev->dev)),
- &hdev->affinity_mask);
+ /* Set the affinity based on numa node */
+ node = dev_to_node(&hdev->pdev->dev);
+ if (node != NUMA_NO_NODE)
+ cpumask = cpumask_of_node(node);
+
+ cpumask_copy(&hdev->affinity_mask, cpumask);
return ret;
}
if (ret) {
dev_err(&hdev->pdev->dev,
"set vf(%u) rst failed %d!\n",
- vport->vport_id, ret);
+ vport->vport_id - HCLGE_VF_VPORT_START_NUM,
+ ret);
return ret;
}
if (ret)
dev_warn(&hdev->pdev->dev,
"inform reset to vf(%u) failed %d!\n",
- vport->vport_id, ret);
+ vport->vport_id - HCLGE_VF_VPORT_START_NUM,
+ ret);
}
return 0;
return 0;
}
+static int hclge_parse_rss_hfunc(struct hclge_vport *vport, const u8 hfunc,
+ u8 *hash_algo)
+{
+ switch (hfunc) {
+ case ETH_RSS_HASH_TOP:
+ *hash_algo = HCLGE_RSS_HASH_ALGO_TOEPLITZ;
+ return 0;
+ case ETH_RSS_HASH_XOR:
+ *hash_algo = HCLGE_RSS_HASH_ALGO_SIMPLE;
+ return 0;
+ case ETH_RSS_HASH_NO_CHANGE:
+ *hash_algo = vport->rss_algo;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
static int hclge_set_rss(struct hnae3_handle *handle, const u32 *indir,
const u8 *key, const u8 hfunc)
{
u8 hash_algo;
int ret, i;
+ ret = hclge_parse_rss_hfunc(vport, hfunc, &hash_algo);
+ if (ret) {
+ dev_err(&hdev->pdev->dev, "invalid hfunc type %u\n", hfunc);
+ return ret;
+ }
+
/* Set the RSS Hash Key if specififed by the user */
if (key) {
- switch (hfunc) {
- case ETH_RSS_HASH_TOP:
- hash_algo = HCLGE_RSS_HASH_ALGO_TOEPLITZ;
- break;
- case ETH_RSS_HASH_XOR:
- hash_algo = HCLGE_RSS_HASH_ALGO_SIMPLE;
- break;
- case ETH_RSS_HASH_NO_CHANGE:
- hash_algo = vport->rss_algo;
- break;
- default:
- return -EINVAL;
- }
-
ret = hclge_set_rss_algo_key(hdev, hash_algo, key);
if (ret)
return ret;
/* Update the shadow RSS key with user specified qids */
memcpy(vport->rss_hash_key, key, HCLGE_RSS_KEY_SIZE);
- vport->rss_algo = hash_algo;
+ } else {
+ ret = hclge_set_rss_algo_key(hdev, hash_algo,
+ vport->rss_hash_key);
+ if (ret)
+ return ret;
}
+ vport->rss_algo = hash_algo;
/* Update the shadow RSS table with user specified qids */
for (i = 0; i < ae_dev->dev_specs.rss_ind_tbl_size; i++)
u8 vf = ethtool_get_flow_spec_ring_vf(ring_cookie);
u16 tqps;
+ /* To keep consistent with user's configuration, minus 1 when
+ * printing 'vf', because vf id from ethtool is added 1 for vf.
+ */
if (vf > hdev->num_req_vfs) {
dev_err(&hdev->pdev->dev,
- "Error: vf id (%u) > max vf num (%u)\n",
- vf, hdev->num_req_vfs);
+ "Error: vf id (%u) should be less than %u\n",
+ vf - 1, hdev->num_req_vfs);
return -EINVAL;
}
hclge_clear_arfs_rules(hdev);
spin_unlock_bh(&hdev->fd_rule_lock);
- /* If it is not PF reset, the firmware will disable the MAC,
+ /* If it is not PF reset or FLR, the firmware will disable the MAC,
* so it only need to stop phy here.
*/
if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state) &&
- hdev->reset_type != HNAE3_FUNC_RESET) {
+ hdev->reset_type != HNAE3_FUNC_RESET &&
+ hdev->reset_type != HNAE3_FLR_RESET) {
hclge_mac_stop_phy(hdev);
hclge_update_link_status(hdev);
return;
if (is_kill && !vlan_id)
return 0;
+ if (vlan_id >= VLAN_N_VID)
+ return -EINVAL;
+
ret = hclge_set_vf_vlan_common(hdev, vport_id, is_kill, vlan_id);
if (ret) {
dev_err(&hdev->pdev->dev,
return 0;
}
-static int hclge_get_reset_status(struct hclge_dev *hdev, u16 queue_id)
+static int hclge_get_reset_status(struct hclge_dev *hdev, u16 queue_id,
+ u8 *reset_status)
{
struct hclge_reset_tqp_queue_cmd *req;
struct hclge_desc desc;
return ret;
}
- return hnae3_get_bit(req->ready_to_reset, HCLGE_TQP_RESET_B);
+ *reset_status = hnae3_get_bit(req->ready_to_reset, HCLGE_TQP_RESET_B);
+
+ return 0;
}
u16 hclge_covert_handle_qid_global(struct hnae3_handle *handle, u16 queue_id)
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;
u16 reset_try_times = 0;
- int reset_status;
+ u8 reset_status;
u16 queue_gid;
int ret;
u16 i;
}
while (reset_try_times++ < HCLGE_TQP_RESET_TRY_TIMES) {
- reset_status = hclge_get_reset_status(hdev, queue_gid);
+ ret = hclge_get_reset_status(hdev, queue_gid,
+ &reset_status);
+ if (ret)
+ return ret;
+
if (reset_status)
break;
struct hclge_vport *vport = &hdev->vport[i];
int ret;
- /* Send cmd to clear VF's FUNC_RST_ING */
+ /* Send cmd to clear vport's FUNC_RST_ING */
ret = hclge_set_vf_rst(hdev, vport->vport_id, false);
if (ret)
dev_warn(&hdev->pdev->dev,
- "clear vf(%u) rst failed %d!\n",
+ "clear vport(%u) rst failed %d!\n",
vport->vport_id, ret);
}
}
struct hclge_dev *hdev = vport->back;
dev_warn(&hdev->pdev->dev, "PF received VF reset request from VF %u!",
- vport->vport_id);
+ vport->vport_id - HCLGE_VF_VPORT_START_NUM);
return hclge_func_reset_cmd(hdev, vport->vport_id);
}
struct hclge_mbx_vf_to_pf_cmd *mbx_req,
struct hclge_respond_to_vf_msg *resp_msg)
{
+ struct hnae3_handle *handle = &vport->nic;
+ struct hclge_dev *hdev = vport->back;
u16 queue_id, qid_in_pf;
memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id));
+ if (queue_id >= handle->kinfo.num_tqps) {
+ dev_err(&hdev->pdev->dev, "Invalid queue id(%u) from VF %u\n",
+ queue_id, mbx_req->mbx_src_vfid);
+ return;
+ }
+
qid_in_pf = hclge_covert_handle_qid_global(&vport->nic, queue_id);
memcpy(resp_msg->data, &qid_in_pf, sizeof(qid_in_pf));
resp_msg->len = sizeof(qid_in_pf);
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
if (ret) {
dev_err(&hdev->pdev->dev,
- "vf%u, qs%u failed to set tx_rate:%d, ret=%d\n",
+ "vport%u, qs%u failed to set tx_rate:%d, ret=%d\n",
vport->vport_id, shap_cfg_cmd->qs_id,
max_tx_rate, ret);
return ret;
return 0;
}
+static int hclgevf_parse_rss_hfunc(struct hclgevf_dev *hdev, const u8 hfunc,
+ u8 *hash_algo)
+{
+ switch (hfunc) {
+ case ETH_RSS_HASH_TOP:
+ *hash_algo = HCLGEVF_RSS_HASH_ALGO_TOEPLITZ;
+ return 0;
+ case ETH_RSS_HASH_XOR:
+ *hash_algo = HCLGEVF_RSS_HASH_ALGO_SIMPLE;
+ return 0;
+ case ETH_RSS_HASH_NO_CHANGE:
+ *hash_algo = hdev->rss_cfg.hash_algo;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
static int hclgevf_set_rss(struct hnae3_handle *handle, const u32 *indir,
const u8 *key, const u8 hfunc)
{
struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
+ u8 hash_algo;
int ret, i;
if (hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V2) {
+ ret = hclgevf_parse_rss_hfunc(hdev, hfunc, &hash_algo);
+ if (ret)
+ return ret;
+
/* Set the RSS Hash Key if specififed by the user */
if (key) {
- switch (hfunc) {
- case ETH_RSS_HASH_TOP:
- rss_cfg->hash_algo =
- HCLGEVF_RSS_HASH_ALGO_TOEPLITZ;
- break;
- case ETH_RSS_HASH_XOR:
- rss_cfg->hash_algo =
- HCLGEVF_RSS_HASH_ALGO_SIMPLE;
- break;
- case ETH_RSS_HASH_NO_CHANGE:
- break;
- default:
- return -EINVAL;
- }
-
- ret = hclgevf_set_rss_algo_key(hdev, rss_cfg->hash_algo,
- key);
- if (ret)
+ ret = hclgevf_set_rss_algo_key(hdev, hash_algo, key);
+ if (ret) {
+ dev_err(&hdev->pdev->dev,
+ "invalid hfunc type %u\n", hfunc);
return ret;
+ }
/* Update the shadow RSS key with user specified qids */
memcpy(rss_cfg->rss_hash_key, key,
HCLGEVF_RSS_KEY_SIZE);
+ } else {
+ ret = hclgevf_set_rss_algo_key(hdev, hash_algo,
+ rss_cfg->rss_hash_key);
+ if (ret)
+ return ret;
}
+ rss_cfg->hash_algo = hash_algo;
}
/* update the shadow RSS table with user specified qids */
hclgevf_enable_vector(&hdev->misc_vector, false);
event_cause = hclgevf_check_evt_cause(hdev, &clearval);
+ if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER)
+ hclgevf_clear_event_cause(hdev, clearval);
switch (event_cause) {
case HCLGEVF_VECTOR0_EVENT_RST:
break;
}
- if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER) {
- hclgevf_clear_event_cause(hdev, clearval);
+ if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER)
hclgevf_enable_vector(&hdev->misc_vector, true);
- }
return IRQ_HANDLED;
}
err = -ENODEV;
goto out;
}
- memcpy(eth_addr, (void *) 0xfffc1f2c, ETH_ALEN); /* YUCK! Get addr from NOVRAM */
+ memcpy(eth_addr, absolute_pointer(0xfffc1f2c), ETH_ALEN); /* YUCK! Get addr from NOVRAM */
dev->base_addr = MVME_I596_BASE;
dev->irq = (unsigned) MVME16x_IRQ_I596;
goto found;
return 0;
}
+ if (adapter->failover_pending) {
+ adapter->init_done_rc = -EAGAIN;
+ netdev_dbg(netdev, "Failover pending, ignoring login response\n");
+ complete(&adapter->init_done);
+ /* login response buffer will be released on reset */
+ return 0;
+ }
+
+ if (adapter->failover_pending) {
+ adapter->init_done_rc = -EAGAIN;
+ netdev_dbg(netdev, "Failover pending, ignoring login response\n");
+ complete(&adapter->init_done);
+ /* login response buffer will be released on reset */
+ return 0;
+ }
+
netdev->mtu = adapter->req_mtu - ETH_HLEN;
netdev_dbg(adapter->netdev, "Login Response Buffer:\n");
tristate "Intel(R) Ethernet Controller I225-LM/I225-V support"
default n
depends on PCI
+ depends on PTP_1588_CLOCK_OPTIONAL
help
This driver supports Intel(R) Ethernet Controller I225-LM/I225-V
family of adapters.
{
if (pf->hw.func_caps.common_cap.rdma && pf->num_rdma_msix) {
set_bit(ICE_FLAG_RDMA_ENA, pf->flags);
+ set_bit(ICE_FLAG_AUX_ENA, pf->flags);
ice_plug_aux_dev(pf);
}
}
{
ice_unplug_aux_dev(pf);
clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);
+ clear_bit(ICE_FLAG_AUX_ENA, pf->flags);
}
#endif /* _ICE_H_ */
struct auxiliary_device *adev;
int ret;
+ /* if this PF doesn't support a technology that requires auxiliary
+ * devices, then gracefully exit
+ */
+ if (!ice_is_aux_ena(pf))
+ return 0;
+
iadev = kzalloc(sizeof(*iadev), GFP_KERNEL);
if (!iadev)
return -ENOMEM;
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
- netdev->vlan_features |= netdev->features;
+ netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
+ netdev->mpls_features |= NETIF_F_HW_CSUM;
+ netdev->hw_enc_features |= netdev->vlan_features;
/* MTU range: 68 - 9216 */
netdev->min_mtu = ETH_MIN_MTU;
int hash;
int i;
+ if (rhashtable_lookup(ð->flow_table, &f->cookie, mtk_flow_ht_params))
+ return -EEXIST;
+
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_META)) {
struct flow_match_meta match;
int nhoff = skb_network_offset(skb);
int ret = 0;
+ if (skb->encapsulation)
+ return -EPROTONOSUPPORT;
+
if (skb->protocol != htons(ETH_P_IP))
return -EPROTONOSUPPORT;
if (!netif_carrier_ok(dev)) {
if (!mlx4_en_QUERY_PORT(mdev, priv->port)) {
if (priv->port_state.link_state) {
- priv->last_link_state = MLX4_DEV_EVENT_PORT_UP;
netif_carrier_on(dev);
en_dbg(LINK, priv, "Link Up\n");
}
mutex_unlock(&mdev->state_lock);
}
-static void mlx4_en_linkstate(struct work_struct *work)
+static void mlx4_en_linkstate(struct mlx4_en_priv *priv)
+{
+ struct mlx4_en_port_state *port_state = &priv->port_state;
+ struct mlx4_en_dev *mdev = priv->mdev;
+ struct net_device *dev = priv->dev;
+ bool up;
+
+ if (mlx4_en_QUERY_PORT(mdev, priv->port))
+ port_state->link_state = MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN;
+
+ up = port_state->link_state == MLX4_PORT_STATE_DEV_EVENT_PORT_UP;
+ if (up == netif_carrier_ok(dev))
+ netif_carrier_event(dev);
+ if (!up) {
+ en_info(priv, "Link Down\n");
+ netif_carrier_off(dev);
+ } else {
+ en_info(priv, "Link Up\n");
+ netif_carrier_on(dev);
+ }
+}
+
+static void mlx4_en_linkstate_work(struct work_struct *work)
{
struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv,
linkstate_task);
struct mlx4_en_dev *mdev = priv->mdev;
- int linkstate = priv->link_state;
mutex_lock(&mdev->state_lock);
- /* If observable port state changed set carrier state and
- * report to system log */
- if (priv->last_link_state != linkstate) {
- if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) {
- en_info(priv, "Link Down\n");
- netif_carrier_off(priv->dev);
- } else {
- en_info(priv, "Link Up\n");
- netif_carrier_on(priv->dev);
- }
- }
- priv->last_link_state = linkstate;
+ mlx4_en_linkstate(priv);
mutex_unlock(&mdev->state_lock);
}
mlx4_en_clear_stats(dev);
err = mlx4_en_start_port(dev);
- if (err)
+ if (err) {
en_err(priv, "Failed starting port:%d\n", priv->port);
-
+ goto out;
+ }
+ mlx4_en_linkstate(priv);
out:
mutex_unlock(&mdev->state_lock);
return err;
spin_lock_init(&priv->stats_lock);
INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode);
INIT_WORK(&priv->restart_task, mlx4_en_restart);
- INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate);
+ INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate_work);
INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats);
INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task);
#ifdef CONFIG_RFS_ACCEL
struct mlx4_hwq_resources res;
int link_state;
- int last_link_state;
bool port_up;
int port;
int registered;
static int mlx5_devlink_rdma_param_register(struct devlink *devlink)
{
- struct mlx5_core_dev *dev = devlink_priv(devlink);
union devlink_param_value value;
int err;
- if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND) || MLX5_ESWITCH_MANAGER(dev))
+ if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
return 0;
err = devlink_param_register(devlink, &enable_rdma_param);
static void mlx5_devlink_rdma_param_unregister(struct devlink *devlink)
{
- struct mlx5_core_dev *dev = devlink_priv(devlink);
-
- if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND) || MLX5_ESWITCH_MANAGER(dev))
+ if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
return;
devlink_param_unpublish(devlink, &enable_rdma_param);
err = mlx5_core_alloc_pd(dev, &tracer->buff.pdn);
if (err) {
mlx5_core_warn(dev, "FWTracer: Failed to allocate PD %d\n", err);
- return err;
+ goto err_cancel_work;
}
err = mlx5_fw_tracer_create_mkey(tracer);
mlx5_core_destroy_mkey(dev, &tracer->buff.mkey);
err_dealloc_pd:
mlx5_core_dealloc_pd(dev, tracer->buff.pdn);
+err_cancel_work:
cancel_work_sync(&tracer->read_fw_strings_work);
return err;
}
int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr);
int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr);
-int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val);
+int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val, bool rx_filter);
int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
u16 vid);
u16 vport_num, esw_owner_vhca_id;
struct netlink_ext_ack *extack;
int ifindex = upper->ifindex;
- int err;
+ int err = 0;
if (!netif_is_bridge_master(upper))
return 0;
struct netlink_ext_ack *extack = switchdev_notifier_info_to_extack(&port_attr_info->info);
const struct switchdev_attr *attr = port_attr_info->attr;
u16 vport_num, esw_owner_vhca_id;
- int err;
+ int err = 0;
if (!mlx5_esw_bridge_lower_rep_vport_num_vhca_id_get(dev, br_offloads->esw, &vport_num,
&esw_owner_vhca_id))
{
struct mlx5e_rep_indr_block_priv *cb_priv;
- /* All callback list access should be protected by RTNL. */
- ASSERT_RTNL();
-
list_for_each_entry(cb_priv,
&rpriv->uplink_priv.tc_indr_block_priv_list,
list)
if (res->features & MLX5E_RX_RES_FEATURE_PTP) {
u32 rqn;
- if (mlx5e_channels_get_ptp_rqn(chs, &rqn))
+ if (!mlx5e_channels_get_ptp_rqn(chs, &rqn))
rqn = res->drop_rqn;
err = mlx5e_rqt_redirect_direct(&res->ptp.rqt, rqn);
return set_pflag_cqe_based_moder(netdev, enable, true);
}
-int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val)
+int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val, bool rx_filter)
{
bool curr_val = MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS);
struct mlx5e_params new_params;
if (curr_val == new_val)
return 0;
- if (new_val && !priv->profile->rx_ptp_support &&
- priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE) {
+ if (new_val && !priv->profile->rx_ptp_support && rx_filter) {
netdev_err(priv->netdev,
"Profile doesn't support enabling of CQE compression while hardware time-stamping is enabled.\n");
return -EINVAL;
new_params = priv->channels.params;
MLX5E_SET_PFLAG(&new_params, MLX5E_PFLAG_RX_CQE_COMPRESS, new_val);
- if (priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE)
+ if (rx_filter)
new_params.ptp_rx = new_val;
if (new_params.ptp_rx == priv->channels.params.ptp_rx)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5_core_dev *mdev = priv->mdev;
+ bool rx_filter;
int err;
if (!MLX5_CAP_GEN(mdev, cqe_compression))
return -EOPNOTSUPP;
- err = mlx5e_modify_rx_cqe_compression_locked(priv, enable);
+ rx_filter = priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE;
+ err = mlx5e_modify_rx_cqe_compression_locked(priv, enable, rx_filter);
if (err)
return err;
if (!rx_filter)
/* Reset CQE compression to Admin default */
- return mlx5e_modify_rx_cqe_compression_locked(priv, rx_cqe_compress_def);
+ return mlx5e_modify_rx_cqe_compression_locked(priv, rx_cqe_compress_def, false);
if (!MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS))
return 0;
/* Disable CQE compression */
netdev_warn(priv->netdev, "Disabling RX cqe compression\n");
- err = mlx5e_modify_rx_cqe_compression_locked(priv, false);
+ err = mlx5e_modify_rx_cqe_compression_locked(priv, false, true);
if (err)
netdev_err(priv->netdev, "Failed disabling cqe compression err=%d\n", err);
curr_match = kmalloc(sizeof(*curr_match), GFP_ATOMIC);
if (!curr_match) {
+ rcu_read_unlock();
free_match_list(match_head, ft_locked);
- err = -ENOMEM;
- goto out;
+ return -ENOMEM;
}
curr_match->g = g;
list_add_tail(&curr_match->list, &match_head->list);
}
-out:
rcu_read_unlock();
return err;
}
struct mlx5_core_dev *dev1;
struct mlx5_lag *ldev;
+ ldev = mlx5_lag_dev(dev);
+ if (!ldev)
+ return;
+
mlx5_dev_list_lock();
- ldev = mlx5_lag_dev(dev);
dev0 = ldev->pf[MLX5_LAG_P1].dev;
dev1 = ldev->pf[MLX5_LAG_P2].dev;
{
struct mlx5_lag *ldev;
- mlx5_dev_list_lock();
ldev = mlx5_lag_dev(dev);
+ if (!ldev)
+ return;
+
+ mlx5_dev_list_lock();
ldev->mode_changes_in_progress--;
mlx5_dev_list_unlock();
mlx5_queue_bond_work(ldev, 0);
err = mlxbf_gige_clean_port(priv);
if (err)
goto free_irqs;
+
+ /* Clear driver's valid_polarity to match hardware,
+ * since the above call to clean_port() resets the
+ * receive polarity used by hardware.
+ */
+ priv->valid_polarity = 0;
+
err = mlxbf_gige_rx_init(priv);
if (err)
goto free_irqs;
int err;
u16 i;
- dma_buf = kzalloc(sizeof(*dma_buf) +
- q_depth * sizeof(struct hwc_work_request),
- GFP_KERNEL);
+ dma_buf = kzalloc(struct_size(dma_buf, reqs, q_depth), GFP_KERNEL);
if (!dma_buf)
return -ENOMEM;
ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA |
DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG);
- /* Take MAC, Port, Phy (intern) and PCS (SGMII/Serdes) clock out of
- * reset
- */
- ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(speed),
- DEV_CLOCK_CFG);
-
- /* No PFC */
- ocelot_write_gix(ocelot, ANA_PFC_PFC_CFG_FC_LINK_SPEED(speed),
- ANA_PFC_PFC_CFG, port);
-
/* Core: Enable port for frame transfer */
ocelot_fields_write(ocelot, port,
QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
return mask;
}
-static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot,
+static u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot, int src_port,
struct net_device *bridge)
{
+ struct ocelot_port *ocelot_port = ocelot->ports[src_port];
u32 mask = 0;
int port;
+ if (!ocelot_port || ocelot_port->bridge != bridge ||
+ ocelot_port->stp_state != BR_STATE_FORWARDING)
+ return 0;
+
for (port = 0; port < ocelot->num_phys_ports; port++) {
- struct ocelot_port *ocelot_port = ocelot->ports[port];
+ ocelot_port = ocelot->ports[port];
if (!ocelot_port)
continue;
struct net_device *bridge = ocelot_port->bridge;
struct net_device *bond = ocelot_port->bond;
- mask = ocelot_get_bridge_fwd_mask(ocelot, bridge);
+ mask = ocelot_get_bridge_fwd_mask(ocelot, port, bridge);
mask |= cpu_fwd_mask;
mask &= ~BIT(port);
if (bond) {
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
-/* Copyright 2020-2021 NXP Semiconductors
+/* Copyright 2020-2021 NXP
*/
#include <net/devlink.h>
#include "ocelot.h"
/* Microsemi Ocelot Switch driver
*
* Copyright (c) 2017, 2019 Microsemi Corporation
- * Copyright 2020-2021 NXP Semiconductors
+ * Copyright 2020-2021 NXP
*/
#include <linux/if_bridge.h>
* mscc_ocelot_switch_lib.
*
* Copyright (c) 2017, 2019 Microsemi Corporation
- * Copyright 2020-2021 NXP Semiconductors
+ * Copyright 2020-2021 NXP
*/
#include <linux/if_bridge.h>
struct nfp_flower_indr_block_cb_priv *cb_priv;
struct nfp_flower_priv *priv = app->priv;
- /* All callback list access should be protected by RTNL. */
- ASSERT_RTNL();
-
list_for_each_entry(cb_priv, &priv->indr_block_cb_priv, list)
if (cb_priv->netdev == netdev)
return cb_priv;
prev_weight = weight;
while (weight) {
+ /* If the HW device is during recovery, all resources are
+ * immediately reset without receiving a per-cid indication
+ * from HW. In this case we don't expect the cid_map to be
+ * cleared.
+ */
+ if (p_hwfn->cdev->recov_in_prog)
+ return 0;
+
msleep(QED_IWARP_MAX_CID_CLEAN_TIME);
weight = bitmap_weight(bmap->bitmap, bmap->max_count);
struct qed_nvm_image_att *p_image_att)
{
enum nvm_image_type type;
+ int rc;
u32 i;
/* Translate image_id into MFW definitions */
return -EINVAL;
}
- qed_mcp_nvm_info_populate(p_hwfn);
+ rc = qed_mcp_nvm_info_populate(p_hwfn);
+ if (rc)
+ return rc;
+
for (i = 0; i < p_hwfn->nvm_info.num_images; i++)
if (type == p_hwfn->nvm_info.image_att[i].image_type)
break;
* Beyond the added delay we clear the bitmap anyway.
*/
while (bitmap_weight(rcid_map->bitmap, rcid_map->max_count)) {
+ /* If the HW device is during recovery, all resources are
+ * immediately reset without receiving a per-cid indication
+ * from HW. In this case we don't expect the cid bitmap to be
+ * cleared.
+ */
+ if (p_hwfn->cdev->recov_in_prog)
+ return;
+
msleep(100);
if (wait_count++ > 20) {
DP_NOTICE(p_hwfn, "cid bitmap wait timed out\n");
struct qlc_83xx_fw_info *fw_info = adapter->ahw->fw_info;
const struct firmware *fw = fw_info->fw;
u32 dest, *p_cache, *temp;
- int i, ret = -EIO;
__le32 *temp_le;
u8 data[16];
size_t size;
+ int i, ret;
u64 addr;
temp = vzalloc(fw->size);
#define PHY_ST 0x8A /* PHY status register */
#define MAC_SM 0xAC /* MAC status machine */
#define MAC_SM_RST 0x0002 /* MAC status machine reset */
+#define MD_CSC 0xb6 /* MDC speed control register */
+#define MD_CSC_DEFAULT 0x0030
#define MAC_ID 0xBE /* Identifier register */
#define TX_DCNT 0x80 /* TX descriptor count */
{
void __iomem *ioaddr = lp->base;
int limit = MAC_DEF_TIMEOUT;
- u16 cmd;
+ u16 cmd, md_csc;
+ md_csc = ioread16(ioaddr + MD_CSC);
iowrite16(MAC_RST, ioaddr + MCR1);
while (limit--) {
cmd = ioread16(ioaddr + MCR1);
iowrite16(MAC_SM_RST, ioaddr + MAC_SM);
iowrite16(0, ioaddr + MAC_SM);
mdelay(5);
+
+ /* Restore MDIO clock frequency */
+ if (md_csc != MD_CSC_DEFAULT)
+ iowrite16(md_csc, ioaddr + MD_CSC);
}
static void r6040_init_mac_regs(struct net_device *dev)
* We need a channel per event queue, plus a VI per tx queue.
* This may be more pessimistic than it needs to be.
*/
- if (n_channels + n_xdp_ev > max_channels) {
- netif_err(efx, drv, efx->net_dev,
- "Insufficient resources for %d XDP event queues (%d other channels, max %d)\n",
- n_xdp_ev, n_channels, max_channels);
- netif_err(efx, drv, efx->net_dev,
- "XDP_TX and XDP_REDIRECT will not work on this interface");
- efx->n_xdp_channels = 0;
- efx->xdp_tx_per_channel = 0;
- efx->xdp_tx_queue_count = 0;
+ if (n_channels >= max_channels) {
+ efx->xdp_txq_queues_mode = EFX_XDP_TX_QUEUES_BORROWED;
+ netif_warn(efx, drv, efx->net_dev,
+ "Insufficient resources for %d XDP event queues (%d other channels, max %d)\n",
+ n_xdp_ev, n_channels, max_channels);
+ netif_warn(efx, drv, efx->net_dev,
+ "XDP_TX and XDP_REDIRECT might decrease device's performance\n");
} else if (n_channels + n_xdp_tx > efx->max_vis) {
- netif_err(efx, drv, efx->net_dev,
- "Insufficient resources for %d XDP TX queues (%d other channels, max VIs %d)\n",
- n_xdp_tx, n_channels, efx->max_vis);
- netif_err(efx, drv, efx->net_dev,
- "XDP_TX and XDP_REDIRECT will not work on this interface");
- efx->n_xdp_channels = 0;
- efx->xdp_tx_per_channel = 0;
- efx->xdp_tx_queue_count = 0;
+ efx->xdp_txq_queues_mode = EFX_XDP_TX_QUEUES_BORROWED;
+ netif_warn(efx, drv, efx->net_dev,
+ "Insufficient resources for %d XDP TX queues (%d other channels, max VIs %d)\n",
+ n_xdp_tx, n_channels, efx->max_vis);
+ netif_warn(efx, drv, efx->net_dev,
+ "XDP_TX and XDP_REDIRECT might decrease device's performance\n");
+ } else if (n_channels + n_xdp_ev > max_channels) {
+ efx->xdp_txq_queues_mode = EFX_XDP_TX_QUEUES_SHARED;
+ netif_warn(efx, drv, efx->net_dev,
+ "Insufficient resources for %d XDP event queues (%d other channels, max %d)\n",
+ n_xdp_ev, n_channels, max_channels);
+
+ n_xdp_ev = max_channels - n_channels;
+ netif_warn(efx, drv, efx->net_dev,
+ "XDP_TX and XDP_REDIRECT will work with reduced performance (%d cpus/tx_queue)\n",
+ DIV_ROUND_UP(n_xdp_tx, tx_per_ev * n_xdp_ev));
} else {
+ efx->xdp_txq_queues_mode = EFX_XDP_TX_QUEUES_DEDICATED;
+ }
+
+ if (efx->xdp_txq_queues_mode != EFX_XDP_TX_QUEUES_BORROWED) {
efx->n_xdp_channels = n_xdp_ev;
efx->xdp_tx_per_channel = tx_per_ev;
efx->xdp_tx_queue_count = n_xdp_tx;
n_channels += n_xdp_ev;
netif_dbg(efx, drv, efx->net_dev,
"Allocating %d TX and %d event queues for XDP\n",
- n_xdp_tx, n_xdp_ev);
+ n_xdp_ev * tx_per_ev, n_xdp_ev);
+ } else {
+ efx->n_xdp_channels = 0;
+ efx->xdp_tx_per_channel = 0;
+ efx->xdp_tx_queue_count = n_xdp_tx;
}
if (vec_count < n_channels) {
goto out;
}
+static inline int
+efx_set_xdp_tx_queue(struct efx_nic *efx, int xdp_queue_number,
+ struct efx_tx_queue *tx_queue)
+{
+ if (xdp_queue_number >= efx->xdp_tx_queue_count)
+ return -EINVAL;
+
+ netif_dbg(efx, drv, efx->net_dev, "Channel %u TXQ %u is XDP %u, HW %u\n",
+ tx_queue->channel->channel, tx_queue->label,
+ xdp_queue_number, tx_queue->queue);
+ efx->xdp_tx_queues[xdp_queue_number] = tx_queue;
+ return 0;
+}
+
int efx_set_channels(struct efx_nic *efx)
{
struct efx_tx_queue *tx_queue;
if (efx_channel_is_xdp_tx(channel)) {
efx_for_each_channel_tx_queue(tx_queue, channel) {
tx_queue->queue = next_queue++;
-
- /* We may have a few left-over XDP TX
- * queues owing to xdp_tx_queue_count
- * not dividing evenly by EFX_MAX_TXQ_PER_CHANNEL.
- * We still allocate and probe those
- * TXQs, but never use them.
- */
- if (xdp_queue_number < efx->xdp_tx_queue_count) {
- netif_dbg(efx, drv, efx->net_dev, "Channel %u TXQ %u is XDP %u, HW %u\n",
- channel->channel, tx_queue->label,
- xdp_queue_number, tx_queue->queue);
- efx->xdp_tx_queues[xdp_queue_number] = tx_queue;
+ rc = efx_set_xdp_tx_queue(efx, xdp_queue_number, tx_queue);
+ if (rc == 0)
xdp_queue_number++;
- }
}
} else {
efx_for_each_channel_tx_queue(tx_queue, channel) {
channel->channel, tx_queue->label,
tx_queue->queue);
}
+
+ /* If XDP is borrowing queues from net stack, it must use the queue
+ * with no csum offload, which is the first one of the channel
+ * (note: channel->tx_queue_by_type is not initialized yet)
+ */
+ if (efx->xdp_txq_queues_mode == EFX_XDP_TX_QUEUES_BORROWED) {
+ tx_queue = &channel->tx_queue[0];
+ rc = efx_set_xdp_tx_queue(efx, xdp_queue_number, tx_queue);
+ if (rc == 0)
+ xdp_queue_number++;
+ }
}
}
}
- WARN_ON(xdp_queue_number != efx->xdp_tx_queue_count);
+ WARN_ON(efx->xdp_txq_queues_mode == EFX_XDP_TX_QUEUES_DEDICATED &&
+ xdp_queue_number != efx->xdp_tx_queue_count);
+ WARN_ON(efx->xdp_txq_queues_mode != EFX_XDP_TX_QUEUES_DEDICATED &&
+ xdp_queue_number > efx->xdp_tx_queue_count);
+
+ /* If we have more CPUs than assigned XDP TX queues, assign the already
+ * existing queues to the exceeding CPUs
+ */
+ next_queue = 0;
+ while (xdp_queue_number < efx->xdp_tx_queue_count) {
+ tx_queue = efx->xdp_tx_queues[next_queue++];
+ rc = efx_set_xdp_tx_queue(efx, xdp_queue_number, tx_queue);
+ if (rc == 0)
+ xdp_queue_number++;
+ }
rc = netif_set_real_num_tx_queues(efx->net_dev, efx->n_tx_channels);
if (rc)
#define EFX_RPS_MAX_IN_FLIGHT 8
#endif /* CONFIG_RFS_ACCEL */
+enum efx_xdp_tx_queues_mode {
+ EFX_XDP_TX_QUEUES_DEDICATED, /* one queue per core, locking not needed */
+ EFX_XDP_TX_QUEUES_SHARED, /* each queue used by more than 1 core */
+ EFX_XDP_TX_QUEUES_BORROWED /* queues borrowed from net stack */
+};
+
/**
* struct efx_nic - an Efx NIC
* @name: Device name (net device name or bus id before net device registered)
* should be allocated for this NIC
* @xdp_tx_queue_count: Number of entries in %xdp_tx_queues.
* @xdp_tx_queues: Array of pointers to tx queues used for XDP transmit.
+ * @xdp_txq_queues_mode: XDP TX queues sharing strategy.
* @rxq_entries: Size of receive queues requested by user.
* @txq_entries: Size of transmit queues requested by user.
* @txq_stop_thresh: TX queue fill level at or above which we stop it.
unsigned int xdp_tx_queue_count;
struct efx_tx_queue **xdp_tx_queues;
+ enum efx_xdp_tx_queues_mode xdp_txq_queues_mode;
unsigned rxq_entries;
unsigned txq_entries;
unsigned int len;
int space;
int cpu;
- int i;
+ int i = 0;
- cpu = raw_smp_processor_id();
+ if (unlikely(n && !xdpfs))
+ return -EINVAL;
+ if (unlikely(!n))
+ return 0;
- if (!efx->xdp_tx_queue_count ||
- unlikely(cpu >= efx->xdp_tx_queue_count))
+ cpu = raw_smp_processor_id();
+ if (unlikely(cpu >= efx->xdp_tx_queue_count))
return -EINVAL;
tx_queue = efx->xdp_tx_queues[cpu];
if (unlikely(!tx_queue))
return -EINVAL;
- if (unlikely(n && !xdpfs))
- return -EINVAL;
+ if (efx->xdp_txq_queues_mode != EFX_XDP_TX_QUEUES_DEDICATED)
+ HARD_TX_LOCK(efx->net_dev, tx_queue->core_txq, cpu);
- if (!n)
- return 0;
+ /* If we're borrowing net stack queues we have to handle stop-restart
+ * or we might block the queue and it will be considered as frozen
+ */
+ if (efx->xdp_txq_queues_mode == EFX_XDP_TX_QUEUES_BORROWED) {
+ if (netif_tx_queue_stopped(tx_queue->core_txq))
+ goto unlock;
+ efx_tx_maybe_stop_queue(tx_queue);
+ }
/* Check for available space. We should never need multiple
* descriptors per frame.
if (flush && i > 0)
efx_nic_push_buffers(tx_queue);
+unlock:
+ if (efx->xdp_txq_queues_mode != EFX_XDP_TX_QUEUES_DEDICATED)
+ HARD_TX_UNLOCK(efx->net_dev, tx_queue->core_txq);
+
return i == 0 ? -EIO : i;
}
priv->clk_csr = STMMAC_CSR_100_150M;
else if ((clk_rate >= CSR_F_150M) && (clk_rate < CSR_F_250M))
priv->clk_csr = STMMAC_CSR_150_250M;
- else if ((clk_rate >= CSR_F_250M) && (clk_rate < CSR_F_300M))
+ else if ((clk_rate >= CSR_F_250M) && (clk_rate <= CSR_F_300M))
priv->clk_csr = STMMAC_CSR_250_300M;
}
struct net_device *ndev = dev_get_drvdata(dev);
struct stmmac_priv *priv = netdev_priv(ndev);
u32 chan;
- int ret;
if (!ndev || !netif_running(ndev))
return 0;
} else {
stmmac_mac_set(priv, priv->ioaddr, false);
pinctrl_pm_select_sleep_state(priv->device);
- /* Disable clock in case of PWM is off */
- clk_disable_unprepare(priv->plat->clk_ptp_ref);
- ret = pm_runtime_force_suspend(dev);
- if (ret) {
- mutex_unlock(&priv->lock);
- return ret;
- }
}
mutex_unlock(&priv->lock);
priv->irq_wake = 0;
} else {
pinctrl_pm_select_default_state(priv->device);
- /* enable the clk previously disabled */
- ret = pm_runtime_force_resume(dev);
- if (ret)
- return ret;
- if (priv->plat->clk_ptp_ref)
- clk_prepare_enable(priv->plat->clk_ptp_ref);
/* reset the phy so that it's ready */
if (priv->mii)
stmmac_mdio_reset(priv->mii);
*******************************************************************************/
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/of.h>
return stmmac_bus_clks_config(priv, true);
}
+static int __maybe_unused stmmac_pltfr_noirq_suspend(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct stmmac_priv *priv = netdev_priv(ndev);
+ int ret;
+
+ if (!netif_running(ndev))
+ return 0;
+
+ if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+ /* Disable clock in case of PWM is off */
+ clk_disable_unprepare(priv->plat->clk_ptp_ref);
+
+ ret = pm_runtime_force_suspend(dev);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused stmmac_pltfr_noirq_resume(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+ struct stmmac_priv *priv = netdev_priv(ndev);
+ int ret;
+
+ if (!netif_running(ndev))
+ return 0;
+
+ if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+ /* enable the clk previously disabled */
+ ret = pm_runtime_force_resume(dev);
+ if (ret)
+ return ret;
+
+ clk_prepare_enable(priv->plat->clk_ptp_ref);
+ }
+
+ return 0;
+}
+
const struct dev_pm_ops stmmac_pltfr_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_suspend, stmmac_pltfr_resume)
SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_noirq_suspend, stmmac_pltfr_noirq_resume)
};
EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
#define SIXP_DAMA_OFF 0
/* default level 2 parameters */
-#define SIXP_TXDELAY (HZ/4) /* in 1 s */
+#define SIXP_TXDELAY 25 /* 250 ms */
#define SIXP_PERSIST 50 /* in 256ths */
-#define SIXP_SLOTTIME (HZ/10) /* in 1 s */
+#define SIXP_SLOTTIME 10 /* 100 ms */
#define SIXP_INIT_RESYNC_TIMEOUT (3*HZ/2) /* in 1 s */
#define SIXP_RESYNC_TIMEOUT 5*HZ /* in 1 s */
flags = claim_dma_lock();
set_dma_mode(priv->param.dma, DMA_MODE_WRITE);
set_dma_addr(priv->param.dma,
- (int) priv->tx_buf[priv->tx_tail] + n);
+ virt_to_bus(priv->tx_buf[priv->tx_tail]) + n);
set_dma_count(priv->param.dma,
priv->tx_len[priv->tx_tail] - n);
release_dma_lock(flags);
flags = claim_dma_lock();
set_dma_mode(priv->param.dma, DMA_MODE_READ);
set_dma_addr(priv->param.dma,
- (int) priv->rx_buf[priv->rx_head]);
+ virt_to_bus(priv->rx_buf[priv->rx_head]));
set_dma_count(priv->param.dma, BUF_SIZE);
release_dma_lock(flags);
enable_dma(priv->param.dma);
if (priv->param.dma >= 0) {
flags = claim_dma_lock();
set_dma_addr(priv->param.dma,
- (int) priv->rx_buf[priv->rx_head]);
+ virt_to_bus(priv->rx_buf[priv->rx_head]));
set_dma_count(priv->param.dma, BUF_SIZE);
release_dma_lock(flags);
} else {
* table region determines the number of entries it has.
*/
if (filter) {
- count = hweight32(ipa->filter_map);
+ /* Include one extra "slot" to hold the filter map itself */
+ count = 1 + hweight32(ipa->filter_map);
hash_count = hash_mem->size ? count : 0;
} else {
count = mem->size / sizeof(__le64);
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2021 NXP Semiconductors
+/* Copyright 2021 NXP
*/
#include <linux/pcs/pcs-xpcs.h>
#include "pcs-xpcs.h"
#ifndef HAVE_DP83640_REGISTERS
#define HAVE_DP83640_REGISTERS
-#define PAGE0 0x0000
+/* #define PAGE0 0x0000 */
#define PHYCR2 0x001c /* PHY Control Register 2 */
#define PAGE4 0x0004
return 0;
}
+static void mdio_shutdown(struct device *dev)
+{
+ struct mdio_device *mdiodev = to_mdio_device(dev);
+ struct device_driver *drv = mdiodev->dev.driver;
+ struct mdio_driver *mdiodrv = to_mdio_driver(drv);
+
+ if (mdiodrv->shutdown)
+ mdiodrv->shutdown(mdiodev);
+}
+
/**
* mdio_driver_register - register an mdio_driver with the MDIO layer
* @drv: new mdio_driver to register
mdiodrv->driver.bus = &mdio_bus_type;
mdiodrv->driver.probe = mdio_probe;
mdiodrv->driver.remove = mdio_remove;
+ mdiodrv->driver.shutdown = mdio_shutdown;
retval = driver_register(&mdiodrv->driver);
if (retval) {
static bool mdio_bus_phy_may_suspend(struct phy_device *phydev)
{
+ struct device_driver *drv = phydev->mdio.dev.driver;
+ struct phy_driver *phydrv = to_phy_driver(drv);
struct net_device *netdev = phydev->attached_dev;
- if (!phydev->drv->suspend)
+ if (!drv || !phydrv->suspend)
return false;
/* PHY not attached? May suspend if the PHY has not already been
if (config.an_enabled && phylink_is_empty_linkmode(config.advertising))
return -EINVAL;
+ /* If this link is with an SFP, ensure that changes to advertised modes
+ * also cause the associated interface to be selected such that the
+ * link can be configured correctly.
+ */
+ if (pl->sfp_port && pl->sfp_bus) {
+ config.interface = sfp_select_interface(pl->sfp_bus,
+ config.advertising);
+ if (config.interface == PHY_INTERFACE_MODE_NA) {
+ phylink_err(pl,
+ "selection of interface failed, advertisement %*pb\n",
+ __ETHTOOL_LINK_MODE_MASK_NBITS,
+ config.advertising);
+ return -EINVAL;
+ }
+
+ /* Revalidate with the selected interface */
+ linkmode_copy(support, pl->supported);
+ if (phylink_validate(pl, support, &config)) {
+ phylink_err(pl, "validation of %s/%s with support %*pb failed\n",
+ phylink_an_mode_str(pl->cur_link_an_mode),
+ phy_modes(config.interface),
+ __ETHTOOL_LINK_MODE_MASK_NBITS, support);
+ return -EINVAL;
+ }
+ }
+
mutex_lock(&pl->state_mutex);
pl->link_config.speed = config.speed;
pl->link_config.duplex = config.duplex;
if (phy_interface_mode_is_8023z(iface) && pl->phydev)
return -EINVAL;
- changed = !linkmode_equal(pl->supported, support);
+ changed = !linkmode_equal(pl->supported, support) ||
+ !linkmode_equal(pl->link_config.advertising,
+ config.advertising);
if (changed) {
linkmode_copy(pl->supported, support);
linkmode_copy(pl->link_config.advertising, config.advertising);
serial = kzalloc(sizeof(*serial), GFP_KERNEL);
if (!serial)
- goto exit;
+ goto err_free_dev;
hso_dev->port_data.dev_serial = serial;
serial->parent = hso_dev;
if (hso_serial_common_create
(serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE))
- goto exit;
+ goto err_free_serial;
serial->tx_data_length--;
serial->write_data = hso_mux_serial_write_data;
/* done, return it */
return hso_dev;
-exit:
- if (serial) {
- tty_unregister_device(tty_drv, serial->minor);
- kfree(serial);
- }
+err_free_serial:
+ kfree(serial);
+err_free_dev:
kfree(hso_dev);
return NULL;
skb_reserve(skb, p - buf);
skb_put(skb, len);
+
+ page = (struct page *)page->private;
+ if (page)
+ give_pages(rq, page);
goto ok;
}
LIST_HEAD(list);
unsigned int h;
- rtnl_lock();
list_for_each_entry(net, net_list, exit_list) {
struct vxlan_net *vn = net_generic(net, vxlan_net_id);
unregister_nexthop_notifier(net, &vn->nexthop_notifier_block);
}
+ rtnl_lock();
list_for_each_entry(net, net_list, exit_list)
vxlan_destroy_tunnels(net, &list);
clean-files := wanxlfw.inc
$(obj)/wanxl.o: $(obj)/wanxlfw.inc
+CROSS_COMPILE_M68K = m68k-linux-gnu-
+
ifeq ($(CONFIG_WANXL_BUILD_FIRMWARE),y)
ifeq ($(ARCH),m68k)
M68KCC = $(CC)
* the header's copy failed, and they are
* sharing a slot, send an error
*/
- if (i == 0 && sharedslot)
+ if (i == 0 && !first_shinfo && sharedslot)
xenvif_idx_release(queue, pending_idx,
XEN_NETIF_RSP_ERROR);
else
static struct spi_device_id st_nci_spi_id_table[] = {
{ST_NCI_SPI_DRIVER_NAME, 0},
+ {"st21nfcb-spi", 0},
{}
};
MODULE_DEVICE_TABLE(spi, st_nci_spi_id_table);
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/backing-dev.h>
-#include <linux/list_sort.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/pr.h>
lockdep_assert_held(&subsys->lock);
list_for_each_entry(h, &subsys->nsheads, entry) {
- if (h->ns_id == nsid && nvme_tryget_ns_head(h))
+ if (h->ns_id != nsid)
+ continue;
+ if (!list_empty(&h->list) && nvme_tryget_ns_head(h))
return h;
}
return ret;
}
-static int ns_cmp(void *priv, const struct list_head *a,
- const struct list_head *b)
-{
- struct nvme_ns *nsa = container_of(a, struct nvme_ns, list);
- struct nvme_ns *nsb = container_of(b, struct nvme_ns, list);
-
- return nsa->head->ns_id - nsb->head->ns_id;
-}
-
struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid)
{
struct nvme_ns *ns, *ret = NULL;
}
EXPORT_SYMBOL_NS_GPL(nvme_find_get_ns, NVME_TARGET_PASSTHRU);
+/*
+ * Add the namespace to the controller list while keeping the list ordered.
+ */
+static void nvme_ns_add_to_ctrl_list(struct nvme_ns *ns)
+{
+ struct nvme_ns *tmp;
+
+ list_for_each_entry_reverse(tmp, &ns->ctrl->namespaces, list) {
+ if (tmp->head->ns_id < ns->head->ns_id) {
+ list_add(&ns->list, &tmp->list);
+ return;
+ }
+ }
+ list_add(&ns->list, &ns->ctrl->namespaces);
+}
+
static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
struct nvme_ns_ids *ids)
{
goto out_unlink_ns;
down_write(&ctrl->namespaces_rwsem);
- list_add_tail(&ns->list, &ctrl->namespaces);
+ nvme_ns_add_to_ctrl_list(ns);
up_write(&ctrl->namespaces_rwsem);
-
nvme_get_ctrl(ctrl);
if (device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups))
mutex_lock(&ns->ctrl->subsys->lock);
list_del_rcu(&ns->siblings);
+ if (list_empty(&ns->head->list)) {
+ list_del_init(&ns->head->entry);
+ last_path = true;
+ }
mutex_unlock(&ns->ctrl->subsys->lock);
/* guarantee not available in head->list */
nvme_cdev_del(&ns->cdev, &ns->cdev_device);
del_gendisk(ns->disk);
blk_cleanup_queue(ns->queue);
- if (blk_get_integrity(ns->disk))
- blk_integrity_unregister(ns->disk);
down_write(&ns->ctrl->namespaces_rwsem);
list_del_init(&ns->list);
up_write(&ns->ctrl->namespaces_rwsem);
- /* Synchronize with nvme_init_ns_head() */
- mutex_lock(&ns->head->subsys->lock);
- if (list_empty(&ns->head->list)) {
- list_del_init(&ns->head->entry);
- last_path = true;
- }
- mutex_unlock(&ns->head->subsys->lock);
if (last_path)
nvme_mpath_shutdown_disk(ns->head);
nvme_put_ns(ns);
if (nvme_scan_ns_list(ctrl) != 0)
nvme_scan_ns_sequential(ctrl);
mutex_unlock(&ctrl->scan_lock);
-
- down_write(&ctrl->namespaces_rwsem);
- list_sort(NULL, &ctrl->namespaces, ns_cmp);
- up_write(&ctrl->namespaces_rwsem);
}
/*
*/
if (ctrl->ctrl.queue_count > 1) {
nvme_stop_queues(&ctrl->ctrl);
+ nvme_sync_io_queues(&ctrl->ctrl);
blk_mq_tagset_busy_iter(&ctrl->tag_set,
nvme_fc_terminate_exchange, &ctrl->ctrl);
blk_mq_tagset_wait_completed_request(&ctrl->tag_set);
* clean up the admin queue. Same thing as above.
*/
blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
+ blk_sync_queue(ctrl->ctrl.admin_q);
blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
nvme_fc_terminate_exchange, &ctrl->ctrl);
blk_mq_tagset_wait_completed_request(&ctrl->admin_tag_set);
if (ctrl->ctrl.queue_count == 1)
return 0;
+ if (prior_ioq_cnt != nr_io_queues) {
+ dev_info(ctrl->ctrl.device,
+ "reconnect: revising io queue count from %d to %d\n",
+ prior_ioq_cnt, nr_io_queues);
+ blk_mq_update_nr_hw_queues(&ctrl->tag_set, nr_io_queues);
+ }
+
ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
if (ret)
goto out_free_io_queues;
if (ret)
goto out_delete_hw_queues;
- if (prior_ioq_cnt != nr_io_queues) {
- dev_info(ctrl->ctrl.device,
- "reconnect: revising io queue count from %d to %d\n",
- prior_ioq_cnt, nr_io_queues);
- nvme_wait_freeze(&ctrl->ctrl);
- blk_mq_update_nr_hw_queues(&ctrl->tag_set, nr_io_queues);
- nvme_unfreeze(&ctrl->ctrl);
- }
-
return 0;
out_delete_hw_queues:
down_read(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list) {
- unsigned nsid = le32_to_cpu(desc->nsids[n]);
-
+ unsigned nsid;
+again:
+ nsid = le32_to_cpu(desc->nsids[n]);
if (ns->head->ns_id < nsid)
continue;
if (ns->head->ns_id == nsid)
nvme_update_ns_ana_state(desc, ns);
if (++n == nr_nsids)
break;
+ if (ns->head->ns_id > nsid)
+ goto again;
}
up_read(&ctrl->namespaces_rwsem);
return 0;
if (!test_and_clear_bit(NVME_RDMA_Q_ALLOCATED, &queue->flags))
return;
- nvme_rdma_destroy_queue_ib(queue);
rdma_destroy_id(queue->cm_id);
+ nvme_rdma_destroy_queue_ib(queue);
mutex_destroy(&queue->queue_lock);
}
for (i = 0; i < queue->queue_size; i++) {
ret = nvme_rdma_post_recv(queue, &queue->rsp_ring[i]);
if (ret)
- goto out_destroy_queue_ib;
+ return ret;
}
return 0;
-
-out_destroy_queue_ib:
- nvme_rdma_destroy_queue_ib(queue);
- return ret;
}
static int nvme_rdma_conn_rejected(struct nvme_rdma_queue *queue,
if (ret) {
dev_err(ctrl->ctrl.device,
"rdma_connect_locked failed (%d).\n", ret);
- goto out_destroy_queue_ib;
+ return ret;
}
return 0;
-
-out_destroy_queue_ib:
- nvme_rdma_destroy_queue_ib(queue);
- return ret;
}
static int nvme_rdma_cm_handler(struct rdma_cm_id *cm_id,
case RDMA_CM_EVENT_ROUTE_ERROR:
case RDMA_CM_EVENT_CONNECT_ERROR:
case RDMA_CM_EVENT_UNREACHABLE:
- nvme_rdma_destroy_queue_ib(queue);
- fallthrough;
case RDMA_CM_EVENT_ADDR_ERROR:
dev_dbg(queue->ctrl->ctrl.device,
"CM error event %d\n", ev->event);
} while (ret > 0);
}
+static inline bool nvme_tcp_queue_more(struct nvme_tcp_queue *queue)
+{
+ return !list_empty(&queue->send_list) ||
+ !llist_empty(&queue->req_list) || queue->more_requests;
+}
+
static inline void nvme_tcp_queue_request(struct nvme_tcp_request *req,
bool sync, bool last)
{
nvme_tcp_send_all(queue);
queue->more_requests = false;
mutex_unlock(&queue->send_mutex);
- } else if (last) {
- queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work);
}
+
+ if (last && nvme_tcp_queue_more(queue))
+ queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work);
}
static void nvme_tcp_process_req_list(struct nvme_tcp_queue *queue)
cpu_to_le32(data->hdr.hlen + hdgst + req->pdu_len + ddgst);
data->ttag = pdu->ttag;
data->command_id = nvme_cid(rq);
- data->data_offset = cpu_to_le32(req->data_sent);
+ data->data_offset = pdu->r2t_offset;
data->data_length = cpu_to_le32(req->pdu_len);
return 0;
}
read_unlock_bh(&sk->sk_callback_lock);
}
-static inline bool nvme_tcp_queue_more(struct nvme_tcp_queue *queue)
-{
- return !list_empty(&queue->send_list) ||
- !llist_empty(&queue->req_list) || queue->more_requests;
-}
-
static inline void nvme_tcp_done_send_req(struct nvme_tcp_queue *queue)
{
queue->request = NULL;
nvme_tcp_ddgst_update(queue->snd_hash, page,
offset, ret);
- /* fully successful last write*/
+ /*
+ * update the request iterator except for the last payload send
+ * in the request where we don't want to modify it as we may
+ * compete with the RX path completing the request.
+ */
+ if (req->data_sent + ret < req->data_len)
+ nvme_tcp_advance_req(req, ret);
+
+ /* fully successful last send in current PDU */
if (last && ret == len) {
if (queue->data_digest) {
nvme_tcp_ddgst_final(queue->snd_hash,
}
return 1;
}
- nvme_tcp_advance_req(req, ret);
}
return -EAGAIN;
}
pending = true;
else if (unlikely(result < 0))
break;
- } else
- pending = !llist_empty(&queue->req_list);
+ }
result = nvme_tcp_try_recv(queue);
if (result > 0)
{
struct nvmet_subsys *subsys = to_subsys(item);
- return snprintf(page, PAGE_SIZE, "%*s\n",
+ return snprintf(page, PAGE_SIZE, "%.*s\n",
NVMET_SN_MAX_SIZE, subsys->serial);
}
config NVMEM_NINTENDO_OTP
tristate "Nintendo Wii and Wii U OTP Support"
+ depends on WII || COMPILE_TEST
help
This is a driver exposing the OTP of a Nintendo Wii or Wii U console.
break;
}
- if (i != count && of_reserved_mem_device_init_by_idx(dev, of_node, i))
+ /*
+ * Attempt to initialize a restricted-dma-pool region if one was found.
+ * Note that count can hold a negative error code.
+ */
+ if (i < count && of_reserved_mem_device_init_by_idx(dev, of_node, i))
dev_warn(dev, "failed to initialise \"restricted-dma-pool\" memory node\n");
}
DEFINE_SIMPLE_PROP(resets, "resets", "#reset-cells")
DEFINE_SIMPLE_PROP(leds, "leds", NULL)
DEFINE_SIMPLE_PROP(backlight, "backlight", NULL)
-DEFINE_SIMPLE_PROP(phy_handle, "phy-handle", NULL)
DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
{ .parse_prop = parse_resets, },
{ .parse_prop = parse_leds, },
{ .parse_prop = parse_backlight, },
- { .parse_prop = parse_phy_handle, },
{ .parse_prop = parse_gpio_compat, },
{ .parse_prop = parse_interrupts, },
{ .parse_prop = parse_regulators, },
config XEN_PCIDEV_FRONTEND
tristate "Xen PCI Frontend"
- depends on X86 && XEN
+ depends on XEN_PV
select PCI_XEN
select XEN_XENBUS_FRONTEND
default y
void pci_set_acpi_fwnode(struct pci_dev *dev)
{
- if (!ACPI_COMPANION(&dev->dev) && !pci_dev_is_added(dev))
+ if (!dev_fwnode(&dev->dev) && !pci_dev_is_added(dev))
ACPI_COMPANION_SET(&dev->dev,
acpi_pci_find_companion(&dev->dev));
}
PCI_CLASS_MULTIMEDIA_HD_AUDIO, 8, quirk_gpu_hda);
/*
- * Create device link for NVIDIA GPU with integrated USB xHCI Host
+ * Create device link for GPUs with integrated USB xHCI Host
* controller to VGA.
*/
static void quirk_gpu_usb(struct pci_dev *usb)
}
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
PCI_CLASS_SERIAL_USB, 8, quirk_gpu_usb);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
+ PCI_CLASS_SERIAL_USB, 8, quirk_gpu_usb);
/*
- * Create device link for NVIDIA GPU with integrated Type-C UCSI controller
+ * Create device link for GPUs with integrated Type-C UCSI controller
* to VGA. Currently there is no class code defined for UCSI device over PCI
* so using UNKNOWN class for now and it will be updated when UCSI
* over PCI gets a class code.
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
PCI_CLASS_SERIAL_UNKNOWN, 8,
quirk_gpu_usb_typec_ucsi);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
+ PCI_CLASS_SERIAL_UNKNOWN, 8,
+ quirk_gpu_usb_typec_ucsi);
/*
* Enable the NVIDIA GPU integrated HDA controller if the BIOS left it
return off ?: PCI_VPD_SZ_INVALID;
}
+static bool pci_vpd_available(struct pci_dev *dev)
+{
+ struct pci_vpd *vpd = &dev->vpd;
+
+ if (!vpd->cap)
+ return false;
+
+ if (vpd->len == 0) {
+ vpd->len = pci_vpd_size(dev);
+ if (vpd->len == PCI_VPD_SZ_INVALID) {
+ vpd->cap = 0;
+ return false;
+ }
+ }
+
+ return true;
+}
+
/*
* Wait for last operation to complete.
* This code has to spin since there is no other notification from the PCI
loff_t end = pos + count;
u8 *buf = arg;
- if (!vpd->cap)
+ if (!pci_vpd_available(dev))
return -ENODEV;
if (pos < 0)
loff_t end = pos + count;
int ret = 0;
- if (!vpd->cap)
+ if (!pci_vpd_available(dev))
return -ENODEV;
if (pos < 0 || (pos & 3) || (count & 3))
void pci_vpd_init(struct pci_dev *dev)
{
+ if (dev->vpd.len == PCI_VPD_SZ_INVALID)
+ return;
+
dev->vpd.cap = pci_find_capability(dev, PCI_CAP_ID_VPD);
mutex_init(&dev->vpd.lock);
-
- if (!dev->vpd.len)
- dev->vpd.len = pci_vpd_size(dev);
-
- if (dev->vpd.len == PCI_VPD_SZ_INVALID)
- dev->vpd.cap = 0;
}
static ssize_t vpd_read(struct file *filp, struct kobject *kobj,
void *pci_vpd_alloc(struct pci_dev *dev, unsigned int *size)
{
- unsigned int len = dev->vpd.len;
+ unsigned int len;
void *buf;
int cnt;
- if (!dev->vpd.cap)
+ if (!pci_vpd_available(dev))
return ERR_PTR(-ENODEV);
+ len = dev->vpd.len;
buf = kmalloc(len, GFP_KERNEL);
if (!buf)
return ERR_PTR(-ENOMEM);
pmu->name, pmu->num_events,
has_nmi ? ", using NMIs" : "");
+ kvm_host_pmu_init(pmu);
+
return 0;
out_destroy:
#define AMD_CPU_ID_YC 0x14B5
#define PMC_MSG_DELAY_MIN_US 100
-#define RESPONSE_REGISTER_LOOP_MAX 200
+#define RESPONSE_REGISTER_LOOP_MAX 20000
#define SOC_SUBSYSTEM_IP_MAX 12
#define DELAY_MIN_US 2000
config DELL_WMI_PRIVACY
bool "Dell WMI Hardware Privacy Support"
- depends on DELL_WMI
- depends on LEDS_TRIGGER_AUDIO
+ depends on LEDS_TRIGGER_AUDIO = y || DELL_WMI = LEDS_TRIGGER_AUDIO
help
This option adds integration with the "Dell Hardware Privacy"
feature of Dell laptops to the dell-wmi driver.
DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550 AORUS ELITE"),
DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550 AORUS ELITE V2"),
DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550 GAMING X V2"),
+ DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550I AORUS PRO AX"),
DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550M AORUS PRO-P"),
DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550M DS3H"),
DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("Z390 I AORUS PRO WIFI-CF"),
{ }
};
+/*
+ * Some devices, even non convertible ones, can send incorrect SW_TABLET_MODE
+ * reports. Accept such reports only from devices in this list.
+ */
+static const struct dmi_system_id dmi_auto_add_switch[] = {
+ {
+ .matches = {
+ DMI_EXACT_MATCH(DMI_CHASSIS_TYPE, "31" /* Convertible */),
+ },
+ },
+ {
+ .matches = {
+ DMI_EXACT_MATCH(DMI_CHASSIS_TYPE, "32" /* Detachable */),
+ },
+ },
+ {} /* Array terminator */
+};
+
struct intel_hid_priv {
struct input_dev *input_dev;
struct input_dev *array;
struct input_dev *switches;
bool wakeup_mode;
- bool dual_accel;
+ bool auto_add_switch;
};
#define HID_EVENT_FILTER_UUID "eeec56b3-4442-408f-a792-4edd4d758054"
* Some convertible have unreliable VGBS return which could cause incorrect
* SW_TABLET_MODE report, in these cases we enable support when receiving
* the first event instead of during driver setup.
- *
- * See dual_accel_detect.h for more info on the dual_accel check.
*/
- if (!priv->switches && !priv->dual_accel && (event == 0xcc || event == 0xcd)) {
+ if (!priv->switches && priv->auto_add_switch && (event == 0xcc || event == 0xcd)) {
dev_info(&device->dev, "switch event received, enable switches supports\n");
err = intel_hid_switches_setup(device);
if (err)
return -ENOMEM;
dev_set_drvdata(&device->dev, priv);
- priv->dual_accel = dual_accel_detect();
+ /* See dual_accel_detect.h for more info on the dual_accel check. */
+ priv->auto_add_switch = dmi_check_system(dmi_auto_add_switch) && !dual_accel_detect();
err = intel_hid_input_setup(device);
if (err) {
* which provide mailbox interface for power management usage.
*/
-#include <linux/acpi.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/device.h>
.remove = intel_punit_ipc_remove,
.driver = {
.name = "intel_punit_ipc",
- .acpi_match_table = ACPI_PTR(punit_ipc_acpi_ids),
+ .acpi_match_table = punit_ipc_acpi_ids,
},
};
goto out_platform_registered;
}
product = dmi_get_system_info(DMI_PRODUCT_NAME);
- if (strlen(product) > 4)
+ if (product && strlen(product) > 4)
switch (product[4]) {
case '5':
case '6':
};
static const struct property_entry chuwi_hi10_plus_props[] = {
- PROPERTY_ENTRY_U32("touchscreen-min-x", 0),
- PROPERTY_ENTRY_U32("touchscreen-min-y", 5),
- PROPERTY_ENTRY_U32("touchscreen-size-x", 1914),
- PROPERTY_ENTRY_U32("touchscreen-size-y", 1283),
+ PROPERTY_ENTRY_U32("touchscreen-min-x", 12),
+ PROPERTY_ENTRY_U32("touchscreen-min-y", 10),
+ PROPERTY_ENTRY_U32("touchscreen-size-x", 1908),
+ PROPERTY_ENTRY_U32("touchscreen-size-y", 1270),
PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi10plus.fw"),
PROPERTY_ENTRY_U32("silead,max-fingers", 10),
PROPERTY_ENTRY_BOOL("silead,home-button"),
};
static const struct ts_dmi_data chuwi_hi10_plus_data = {
+ .embedded_fw = {
+ .name = "silead/gsl1680-chuwi-hi10plus.fw",
+ .prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
+ .length = 34056,
+ .sha256 = { 0xfd, 0x0a, 0x08, 0x08, 0x3c, 0xa6, 0x34, 0x4e,
+ 0x2c, 0x49, 0x9c, 0xcd, 0x7d, 0x44, 0x9d, 0x38,
+ 0x10, 0x68, 0xb5, 0xbd, 0xb7, 0x2a, 0x63, 0xb5,
+ 0x67, 0x0b, 0x96, 0xbd, 0x89, 0x67, 0x85, 0x09 },
+ },
.acpi_name = "MSSL0017:00",
.properties = chuwi_hi10_plus_props,
};
.properties = chuwi_hi10_pro_props,
};
+static const struct property_entry chuwi_hibook_props[] = {
+ PROPERTY_ENTRY_U32("touchscreen-min-x", 30),
+ PROPERTY_ENTRY_U32("touchscreen-min-y", 4),
+ PROPERTY_ENTRY_U32("touchscreen-size-x", 1892),
+ PROPERTY_ENTRY_U32("touchscreen-size-y", 1276),
+ PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
+ PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+ PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hibook.fw"),
+ PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+ PROPERTY_ENTRY_BOOL("silead,home-button"),
+ { }
+};
+
+static const struct ts_dmi_data chuwi_hibook_data = {
+ .embedded_fw = {
+ .name = "silead/gsl1680-chuwi-hibook.fw",
+ .prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
+ .length = 40392,
+ .sha256 = { 0xf7, 0xc0, 0xe8, 0x5a, 0x6c, 0xf2, 0xeb, 0x8d,
+ 0x12, 0xc4, 0x45, 0xbf, 0x55, 0x13, 0x4c, 0x1a,
+ 0x13, 0x04, 0x31, 0x08, 0x65, 0x73, 0xf7, 0xa8,
+ 0x1b, 0x7d, 0x59, 0xc9, 0xe6, 0x97, 0xf7, 0x38 },
+ },
+ .acpi_name = "MSSL0017:00",
+ .properties = chuwi_hibook_props,
+};
+
static const struct property_entry chuwi_vi8_props[] = {
PROPERTY_ENTRY_U32("touchscreen-min-x", 4),
PROPERTY_ENTRY_U32("touchscreen-min-y", 6),
},
},
{
+ /* Chuwi HiBook (CWI514) */
+ .driver_data = (void *)&chuwi_hibook_data,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
+ DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+ /* Above matches are too generic, add bios-date match */
+ DMI_MATCH(DMI_BIOS_DATE, "05/07/2016"),
+ },
+ },
+ {
/* Chuwi Vi8 (CWI506) */
.driver_data = (void *)&chuwi_vi8_data,
.matches = {
depends on I2C && MTD
depends on SERIAL_8250
depends on !S390
+ depends on COMMON_CLK
select NET_DEVLINK
help
This driver adds support for an OpenCompute time card.
MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
MODULE_DESCRIPTION("Maxim 14577/77836 regulator driver");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:max14577-regulator");
-MODULE_ALIAS("platform:max77836-regulator");
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6"),
- RPMH_VREG("ldo7", "ldo%s6", &pmic5_pldo_lv, "vdd-l7"),
+ RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo_lv, "vdd-l7"),
{}
};
* ACK the rtc irq here
*/
if (t_now >= cmos->alarm_expires && cmos_use_acpi_alarm()) {
+ local_irq_disable();
cmos_interrupt(0, (void *)cmos->rtc);
+ local_irq_enable();
return;
}
sclp.has_gisaf = !!(sccb->fac118 & 0x08);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
sclp.has_kss = !!(sccb->fac98 & 0x01);
- sclp.has_sipl = !!(sccb->cbl & 0x4000);
if (sccb->fac85 & 0x02)
S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
if (sccb->fac91 & 0x40)
S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_GUEST;
if (sccb->cpuoff > 134)
sclp.has_diag318 = !!(sccb->byte_134 & 0x80);
+ if (sccb->cpuoff > 137)
+ sclp.has_sipl = !!(sccb->cbl & 0x4000);
sclp.rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
sclp.rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
sclp.rzm <<= 20;
/**
* ccwgroup_set_offline() - disable a ccwgroup device
* @gdev: target ccwgroup device
+ * @call_gdrv: Call the registered gdrv set_offline function
*
* This function attempts to put the ccwgroup device into the offline state.
* Returns:
* %0 on success and a negative error value on failure.
*/
-int ccwgroup_set_offline(struct ccwgroup_device *gdev)
+int ccwgroup_set_offline(struct ccwgroup_device *gdev, bool call_gdrv)
{
struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
int ret = -EINVAL;
return -EAGAIN;
if (gdev->state == CCWGROUP_OFFLINE)
goto out;
+ if (!call_gdrv) {
+ ret = 0;
+ goto offline;
+ }
if (gdrv->set_offline)
ret = gdrv->set_offline(gdev);
if (ret)
goto out;
+offline:
gdev->state = CCWGROUP_OFFLINE;
out:
atomic_set(&gdev->onoff, 0);
if (value == 1)
ret = ccwgroup_set_online(gdev);
else if (value == 0)
- ret = ccwgroup_set_offline(gdev);
+ ret = ccwgroup_set_offline(gdev, true);
else
ret = -EINVAL;
out:
* ap_init_qci_info(): Allocate and query qci config info.
* Does also update the static variables ap_max_domain_id
* and ap_max_adapter_id if this info is available.
-
*/
static void __init ap_init_qci_info(void)
{
/**
* ap_interrupt_handler() - Schedule ap_tasklet on interrupt
* @airq: pointer to adapter interrupt descriptor
+ * @floating: ignored
*/
static void ap_interrupt_handler(struct airq_struct *airq, bool floating)
{
/**
* ap_scan_bus(): Scan the AP bus for new devices
* Runs periodically, workqueue timer (ap_config_time)
+ * @unused: Unused pointer.
*/
static void ap_scan_bus(struct work_struct *unused)
{
/**
* ap_queue_enable_irq(): Enable interrupt support on this AP queue.
- * @qid: The AP queue number
+ * @aq: The AP queue
* @ind: the notification indicator byte
*
* Enables interruption on AP queue via ap_aqic(). Based on the return
/**
* ap_sm_reset(): Reset an AP queue.
- * @qid: The AP queue number
+ * @aq: The AP queue
*
* Submit the Reset command to an AP queue.
*/
struct napi_struct napi;
struct qeth_rx rx;
struct delayed_work buffer_reclaim_work;
- struct work_struct close_dev_work;
};
static inline bool qeth_card_hw_is_reachable(struct qeth_card *card)
static int qeth_qdio_establish(struct qeth_card *);
static void qeth_free_qdio_queues(struct qeth_card *card);
-static void qeth_close_dev_handler(struct work_struct *work)
-{
- struct qeth_card *card;
-
- card = container_of(work, struct qeth_card, close_dev_work);
- QETH_CARD_TEXT(card, 2, "cldevhdl");
- ccwgroup_set_offline(card->gdev);
-}
-
static const char *qeth_get_cardname(struct qeth_card *card)
{
if (IS_VM_NIC(card)) {
&card->qdio.in_buf_pool.entry_list, list)
list_del(&pool_entry->list);
+ if (!queue)
+ return;
+
for (i = 0; i < ARRAY_SIZE(queue->bufs); i++)
queue->bufs[i].pool_entry = NULL;
}
case IPA_CMD_STOPLAN:
if (cmd->hdr.return_code == IPA_RC_VEPA_TO_VEB_TRANSITION) {
dev_err(&card->gdev->dev,
- "Interface %s is down because the adjacent port is no longer in reflective relay mode\n",
+ "Adjacent port of interface %s is no longer in reflective relay mode, trigger recovery\n",
netdev_name(card->dev));
- schedule_work(&card->close_dev_work);
+ /* Set offline, then probably fail to set online: */
+ qeth_schedule_recovery(card);
} else {
+ /* stay online for subsequent STARTLAN */
dev_warn(&card->gdev->dev,
"The link for interface %s on CHPID 0x%X failed\n",
netdev_name(card->dev), card->info.chpid);
INIT_LIST_HEAD(&card->ipato.entries);
qeth_init_qdio_info(card);
INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
- INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
hash_init(card->rx_mode_addrs);
hash_init(card->local_addrs4);
hash_init(card->local_addrs6);
dev_info(&card->gdev->dev,
"Device successfully recovered!\n");
} else {
- ccwgroup_set_offline(card->gdev);
+ qeth_set_offline(card, disc, true);
+ ccwgroup_set_offline(card->gdev, false);
dev_warn(&card->gdev->dev,
"The qeth device driver failed to recover an error on the device\n");
}
if (gdev->state == CCWGROUP_ONLINE)
qeth_set_offline(card, card->discipline, false);
- cancel_work_sync(&card->close_dev_work);
if (card->dev->reg_state == NETREG_REGISTERED) {
priv = netdev_priv(card->dev);
if (priv->brport_features & BR_LEARNING_SYNC) {
if (cgdev->state == CCWGROUP_ONLINE)
qeth_set_offline(card, card->discipline, false);
- cancel_work_sync(&card->close_dev_work);
if (card->dev->reg_state == NETREG_REGISTERED)
unregister_netdev(card->dev);
This enables support for the Acorn SCSI card (aka30). If you have an
Acorn system with one of these, say Y. If unsure, say N.
-config SCSI_ACORNSCSI_TAGGED_QUEUE
- bool "Support SCSI 2 Tagged queueing"
- depends on SCSI_ACORNSCSI_3
- help
- Say Y here to enable tagged queuing support on the Acorn SCSI card.
-
- This is a feature of SCSI-2 which improves performance: the host
- adapter can send several SCSI commands to a device's queue even if
- previous commands haven't finished yet. Some SCSI devices don't
- implement this properly, so the safe answer is N.
-
config SCSI_ACORNSCSI_SYNC
bool "Support SCSI 2 Synchronous Transfers"
depends on SCSI_ACORNSCSI_3
* You can tell if you have a device that supports tagged queueing my
* cating (eg) /proc/scsi/acornscsi/0 and see if the SCSI revision is reported
* as '2 TAG'.
- *
- * Also note that CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE is normally set in the config
- * scripts, but disabled here. Once debugged, remove the #undef, otherwise to debug,
- * comment out the undef.
*/
-#undef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
+
/*
* SCSI-II Synchronous transfer support.
*
unsigned int result);
static int acornscsi_reconnect_finish(AS_Host *host);
static void acornscsi_dma_cleanup(AS_Host *host);
-static void acornscsi_abortcmd(AS_Host *host, unsigned char tag);
+static void acornscsi_abortcmd(AS_Host *host);
/* ====================================================================================
* Miscellaneous
#endif
if (from_queue) {
-#ifdef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
- /*
- * tagged queueing - allocate a new tag to this command
- */
- if (SCpnt->device->simple_tags) {
- SCpnt->device->current_tag += 1;
- if (SCpnt->device->current_tag == 0)
- SCpnt->device->current_tag = 1;
- SCpnt->tag = SCpnt->device->current_tag;
- } else
-#endif
set_bit(SCpnt->device->id * 8 +
(u8)(SCpnt->device->lun & 0x07), host->busyluns);
* the device recognises the attention.
*/
if (dmac_read(host, DMAC_STATUS) & STATUS_RQ0) {
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
dmac_write(host, DMAC_TXCNTLO, 0);
dmac_write(host, DMAC_TXCNTHI, 0);
acornscsi_sbic_issuecmd(host, CMND_ASSERTATN);
switch (host->scsi.last_message) {
-#ifdef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
- case HEAD_OF_QUEUE_TAG:
- case ORDERED_QUEUE_TAG:
- case SIMPLE_QUEUE_TAG:
- /*
- * ANSI standard says: (Section SCSI-2 Rev. 10c Sect 5.6.17)
- * If a target does not implement tagged queuing and a queue tag
- * message is received, it shall respond with a MESSAGE REJECT
- * message and accept the I/O process as if it were untagged.
- */
- printk(KERN_NOTICE "scsi%d.%c: disabling tagged queueing\n",
- host->host->host_no, acornscsi_target(host));
- host->SCpnt->device->simple_tags = 0;
- set_bit(host->SCpnt->device->id * 8 +
- (u8)(host->SCpnt->device->lun & 0x7), host->busyluns);
- break;
-#endif
case EXTENDED_MESSAGE | (EXTENDED_SDTR << 8):
/*
* Target can't handle synchronous transfers
#if 0
/* does the device need the current command aborted */
if (cmd_aborted) {
- acornscsi_abortcmd(host->SCpnt->tag);
+ acornscsi_abortcmd(host);
return;
}
#endif
-#ifdef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
- if (host->SCpnt->tag) {
- unsigned int tag_type;
-
- if (host->SCpnt->cmnd[0] == REQUEST_SENSE ||
- host->SCpnt->cmnd[0] == TEST_UNIT_READY ||
- host->SCpnt->cmnd[0] == INQUIRY)
- tag_type = HEAD_OF_QUEUE_TAG;
- else
- tag_type = SIMPLE_QUEUE_TAG;
- msgqueue_addmsg(&host->scsi.msgs, 2, tag_type, host->SCpnt->tag);
- }
-#endif
#ifdef CONFIG_SCSI_ACORNSCSI_SYNC
if (host->device[host->SCpnt->device->id].sync_state == SYNC_NEGOCIATE) {
"to reconnect with\n",
host->host->host_no, '0' + target);
acornscsi_dumplog(host, target);
- acornscsi_abortcmd(host, 0);
+ acornscsi_abortcmd(host);
if (host->SCpnt) {
queue_add_cmd_tail(&host->queues.disconnected, host->SCpnt);
host->SCpnt = NULL;
host->scsi.disconnectable = 0;
if (host->SCpnt->device->id == host->scsi.reconnected.target &&
host->SCpnt->device->lun == host->scsi.reconnected.lun &&
- host->SCpnt->tag == host->scsi.reconnected.tag) {
+ scsi_cmd_to_tag(host->SCpnt) == host->scsi.reconnected.tag) {
#if (DEBUG & (DEBUG_QUEUES|DEBUG_DISCON))
DBG(host->SCpnt, printk("scsi%d.%c: reconnected",
host->host->host_no, acornscsi_target(host)));
}
if (!host->SCpnt)
- acornscsi_abortcmd(host, host->scsi.reconnected.tag);
+ acornscsi_abortcmd(host);
else {
/*
* Restore data pointer from SAVED pointers.
* Function: void acornscsi_abortcmd(AS_host *host, unsigned char tag)
* Purpose : abort a currently executing command
* Params : host - host with connected command to abort
- * tag - tag to abort
*/
static
-void acornscsi_abortcmd(AS_Host *host, unsigned char tag)
+void acornscsi_abortcmd(AS_Host *host)
{
host->scsi.phase = PHASE_ABORTED;
sbic_arm_write(host, SBIC_CMND, CMND_ASSERTATN);
msgqueue_flush(&host->scsi.msgs);
-#ifdef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
- if (tag)
- msgqueue_addmsg(&host->scsi.msgs, 2, ABORT_TAG, tag);
- else
-#endif
- msgqueue_addmsg(&host->scsi.msgs, 1, ABORT);
+ msgqueue_addmsg(&host->scsi.msgs, 1, ABORT);
}
/* ==========================================================================================
printk(KERN_ERR "scsi%d.%c: PHASE_CONNECTING, SSR %02X?\n",
host->host->host_no, acornscsi_target(host), ssr);
acornscsi_dumplog(host, host->SCpnt ? host->SCpnt->device->id : 8);
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
}
return INTR_PROCESSING;
printk(KERN_ERR "scsi%d.%c: PHASE_CONNECTED, SSR %02X?\n",
host->host->host_no, acornscsi_target(host), ssr);
acornscsi_dumplog(host, host->SCpnt ? host->SCpnt->device->id : 8);
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
}
return INTR_PROCESSING;
case 0x18: /* -> PHASE_DATAOUT */
/* COMMAND -> DATA OUT */
if (host->scsi.SCp.sent_command != host->SCpnt->cmd_len)
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
acornscsi_dma_setup(host, DMA_OUT);
if (!acornscsi_starttransfer(host))
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
host->scsi.phase = PHASE_DATAOUT;
return INTR_IDLE;
case 0x19: /* -> PHASE_DATAIN */
/* COMMAND -> DATA IN */
if (host->scsi.SCp.sent_command != host->SCpnt->cmd_len)
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
acornscsi_dma_setup(host, DMA_IN);
if (!acornscsi_starttransfer(host))
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
host->scsi.phase = PHASE_DATAIN;
return INTR_IDLE;
/* MESSAGE IN -> DATA OUT */
acornscsi_dma_setup(host, DMA_OUT);
if (!acornscsi_starttransfer(host))
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
host->scsi.phase = PHASE_DATAOUT;
return INTR_IDLE;
/* MESSAGE IN -> DATA IN */
acornscsi_dma_setup(host, DMA_IN);
if (!acornscsi_starttransfer(host))
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
host->scsi.phase = PHASE_DATAIN;
return INTR_IDLE;
switch (ssr) {
case 0x19: /* -> PHASE_DATAIN */
case 0x89: /* -> PHASE_DATAIN */
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
return INTR_IDLE;
case 0x1b: /* -> PHASE_STATUSIN */
switch (ssr) {
case 0x18: /* -> PHASE_DATAOUT */
case 0x88: /* -> PHASE_DATAOUT */
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
return INTR_IDLE;
case 0x1b: /* -> PHASE_STATUSIN */
SCpnt->scsi_done = done;
SCpnt->host_scribble = NULL;
SCpnt->result = 0;
- SCpnt->tag = 0;
SCpnt->SCp.phase = (int)acornscsi_datadirection(SCpnt->cmnd[0]);
SCpnt->SCp.sent_command = 0;
SCpnt->SCp.scsi_xferred = 0;
break;
default:
- acornscsi_abortcmd(host, host->SCpnt->tag);
+ acornscsi_abortcmd(host);
res = res_snooze;
}
local_irq_restore(flags);
#ifdef CONFIG_SCSI_ACORNSCSI_SYNC
" SYNC"
#endif
-#ifdef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
- " TAG"
-#endif
#if (DEBUG & DEBUG_NO_WRITE)
" NOWRITE (" __stringify(NO_WRITE) ")"
#endif
#ifdef CONFIG_SCSI_ACORNSCSI_SYNC
" SYNC"
#endif
-#ifdef CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
- " TAG"
-#endif
#if (DEBUG & DEBUG_NO_WRITE)
" NOWRITE (" __stringify(NO_WRITE) ")"
#endif
seq_printf(m, "Device/Lun TaggedQ Sync\n");
seq_printf(m, " %d/%llu ", scd->id, scd->lun);
if (scd->tagged_supported)
- seq_printf(m, "%3sabled(%3d) ",
- scd->simple_tags ? "en" : "dis",
- scd->current_tag);
+ seq_printf(m, "%3sabled ",
+ scd->simple_tags ? "en" : "dis");
else
seq_printf(m, "unsupported ");
* I was thinking that this was a good chip until I found this restriction ;(
*/
#define SCSI2_SYNC
-#undef SCSI2_TAG
#undef DEBUG_CONNECT
#undef DEBUG_MESSAGES
info->scsi.disconnectable = 0;
if (info->SCpnt->device->id == target &&
info->SCpnt->device->lun == lun &&
- info->SCpnt->tag == tag) {
+ scsi_cmd_to_rq(info->SCpnt)->tag == tag) {
fas216_log(info, LOG_CONNECT, "reconnected previously executing command");
} else {
queue_add_cmd_tail(&info->queues.disconnected, info->SCpnt);
/*
* add tag message if required
*/
- if (SCpnt->tag)
- msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG, SCpnt->tag);
+ if (SCpnt->device->simple_tags)
+ msgqueue_addmsg(&info->scsi.msgs, 2, SIMPLE_QUEUE_TAG,
+ scsi_cmd_to_rq(SCpnt)->tag);
do {
#ifdef SCSI2_SYNC
static void fas216_allocate_tag(FAS216_Info *info, struct scsi_cmnd *SCpnt)
{
-#ifdef SCSI2_TAG
- /*
- * tagged queuing - allocate a new tag to this command
- */
- if (SCpnt->device->simple_tags && SCpnt->cmnd[0] != REQUEST_SENSE &&
- SCpnt->cmnd[0] != INQUIRY) {
- SCpnt->device->current_tag += 1;
- if (SCpnt->device->current_tag == 0)
- SCpnt->device->current_tag = 1;
- SCpnt->tag = SCpnt->device->current_tag;
- } else
-#endif
- set_bit(SCpnt->device->id * 8 +
- (u8)(SCpnt->device->lun & 0x7), info->busyluns);
+ set_bit(SCpnt->device->id * 8 +
+ (u8)(SCpnt->device->lun & 0x7), info->busyluns);
info->stats.removes += 1;
switch (SCpnt->cmnd[0]) {
init_SCp(SCpnt);
SCpnt->SCp.Message = 0;
SCpnt->SCp.Status = 0;
- SCpnt->tag = 0;
SCpnt->host_scribble = (void *)fas216_rq_sns_done;
/*
init_SCp(SCpnt);
info->stats.queues += 1;
- SCpnt->tag = 0;
spin_lock(&info->host_lock);
dev = &info->device[scd->id];
seq_printf(m, " %d/%llu ", scd->id, scd->lun);
if (scd->tagged_supported)
- seq_printf(m, "%3sabled(%3d) ",
- scd->simple_tags ? "en" : "dis",
- scd->current_tag);
+ seq_printf(m, "%3sabled ",
+ scd->simple_tags ? "en" : "dis");
else
seq_puts(m, "unsupported ");
list_for_each(l, &queue->head) {
QE_t *q = list_entry(l, QE_t, list);
if (q->SCpnt->device->id == target && q->SCpnt->device->lun == lun &&
- q->SCpnt->tag == tag) {
+ scsi_cmd_to_rq(q->SCpnt)->tag == tag) {
SCpnt = __queue_remove(queue, l);
break;
}
struct efct *efct = lio_vport->efct;
unsigned long flags = 0;
- spin_lock_irqsave(&efct->tgt_efct.efct_lio_lock, flags);
-
if (lio_vport->fc_vport)
fc_vport_terminate(lio_vport->fc_vport);
+ spin_lock_irqsave(&efct->tgt_efct.efct_lio_lock, flags);
+
list_for_each_entry_safe(vport, next_vport, &efct->tgt_efct.vport_list,
list_entry) {
if (vport->lio_vport == lio_vport) {
break;
case EFC_EVT_NPORT_TOPOLOGY_NOTIFY: {
- enum efc_nport_topology topology =
- (enum efc_nport_topology)arg;
+ enum efc_nport_topology *topology = arg;
WARN_ON(node->nport->domain->attached);
WARN_ON(node->send_ls_acc != EFC_NODE_SEND_LS_ACC_PLOGI);
node_printf(node, "topology notification, topology=%d\n",
- topology);
+ *topology);
/* At the time the PLOGI was received, the topology was unknown,
* so we didn't know which node would perform the domain attach:
* 1. The node from which the PLOGI was sent (p2p) or
* 2. The node to which the FLOGI was sent (fabric).
*/
- if (topology == EFC_NPORT_TOPO_P2P) {
+ if (*topology == EFC_NPORT_TOPO_P2P) {
/* if this is p2p, need to attach to the domain using
* the d_id from the PLOGI received
*/
efc_fabric_notify_topology(struct efc_node *node)
{
struct efc_node *tmp_node;
- enum efc_nport_topology topology = node->nport->topology;
unsigned long index;
/*
if (tmp_node != node) {
efc_node_post_event(tmp_node,
EFC_EVT_NPORT_TOPOLOGY_NOTIFY,
- (void *)topology);
+ &node->nport->topology);
}
}
}
"6312 Catching potential buffer "
"overflow > PAGE_SIZE = %lu bytes\n",
PAGE_SIZE);
- strscpy(buf + PAGE_SIZE - 1 -
- strnlen(LPFC_INFO_MORE_STR, PAGE_SIZE - 1),
- LPFC_INFO_MORE_STR,
- strnlen(LPFC_INFO_MORE_STR, PAGE_SIZE - 1)
- + 1);
+ strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
+ LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1);
}
return len;
}
len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n",
phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
- len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n",
+ len += scnprintf(buf + len, PAGE_SIZE - len,
+ "Cfg: %d SCSI: %d NVME: %d\n",
phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
phba->cfg_nvme_seg_cnt);
return len;
be32_to_cpu(pcgd->desc_tag),
be32_to_cpu(pcgd->desc_len),
be32_to_cpu(pcgd->xmt_signal_capability),
- be32_to_cpu(pcgd->xmt_signal_frequency.count),
- be32_to_cpu(pcgd->xmt_signal_frequency.units),
+ be16_to_cpu(pcgd->xmt_signal_frequency.count),
+ be16_to_cpu(pcgd->xmt_signal_frequency.units),
be32_to_cpu(pcgd->rcv_signal_capability),
- be32_to_cpu(pcgd->rcv_signal_frequency.count),
- be32_to_cpu(pcgd->rcv_signal_frequency.units));
+ be16_to_cpu(pcgd->rcv_signal_frequency.count),
+ be16_to_cpu(pcgd->rcv_signal_frequency.units));
/* Compare driver and Fport capabilities and choose
* least common.
/* Extract the next WWPN from the payload */
wwn = *wwnlist++;
wwpn = be64_to_cpu(wwn);
- len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ,
+ len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len,
" %016llx", wwpn);
/* Log a message if we are on the last WWPN
#define lpfc_mbx_rd_object_rlen_MASK 0x00FFFFFF
#define lpfc_mbx_rd_object_rlen_WORD word0
uint32_t rd_object_offset;
- uint32_t rd_object_name[LPFC_MBX_OBJECT_NAME_LEN_DW];
+ __le32 rd_object_name[LPFC_MBX_OBJECT_NAME_LEN_DW];
#define LPFC_OBJ_NAME_SZ 104 /* 26 x sizeof(uint32_t) is 104. */
uint32_t rd_object_cnt;
struct lpfc_mbx_host_buf rd_object_hbuf[4];
if (phba->cgn_fpin_frequency &&
phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
- cp->cgn_stat_npm = cpu_to_le32(value);
+ cp->cgn_stat_npm = value;
}
value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
LPFC_CGN_CRC32_SEED);
uint32_t mbps;
uint32_t dvalue, wvalue, lvalue, avalue;
uint64_t latsum;
- uint16_t *ptr;
- uint32_t *lptr;
- uint16_t *mptr;
+ __le16 *ptr;
+ __le32 *lptr;
+ __le16 *mptr;
/* Make sure we have a congestion info buffer */
if (!phba->cgn_i)
if (phba->cgn_fpin_frequency &&
phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
- cp->cgn_stat_npm = cpu_to_le32(value);
+ cp->cgn_stat_npm = value;
}
/* Read and clear the latency counters for this minute */
dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
- mbps += le32_to_cpu(cp->cgn_bw_hr[i]);
+ mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
}
if (lvalue) /* Avg of latency averages */
return 0;
out_free_hba_hdwq_info:
- free_percpu(phba->sli4_hba.c_stat);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ free_percpu(phba->sli4_hba.c_stat);
out_free_hba_idle_stat:
- kfree(phba->sli4_hba.idle_stat);
#endif
+ kfree(phba->sli4_hba.idle_stat);
out_free_hba_eq_info:
free_percpu(phba->sli4_hba.eq_info);
out_free_hba_cpu_map:
/* last used Index initialized to 0xff already */
- cp->cgn_warn_freq = LPFC_FPIN_INIT_FREQ;
- cp->cgn_alarm_freq = LPFC_FPIN_INIT_FREQ;
+ cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
+ cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(crc);
struct lpfc_nvme_qhandle *lpfc_queue_info;
struct lpfc_nvme_fcpreq_priv *freqpriv;
struct nvme_common_command *sqe;
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint64_t start = 0;
-#endif
/* Validate pointers. LLDD fault handling with transport does
* have timing races.
lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc,
uint8_t *txop, uint8_t *rxop)
{
- uint8_t ret = 0;
if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) {
switch (scsi_get_prot_op(sc)) {
}
}
- return ret;
+ return 0;
}
#endif
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
int err, idx;
u8 *uuid = NULL;
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
- uint64_t start = 0L;
+ uint64_t start;
- if (phba->ktime_on)
- start = ktime_get_ns();
-#endif
start = ktime_get_ns();
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
struct lpfc_dmabuf *pcmd;
+ u32 rd_object_name[LPFC_MBX_OBJECT_NAME_LEN_DW] = {0};
/* sanity check on queue memory */
if (!datap)
memset((void *)read_object->u.request.rd_object_name, 0,
LPFC_OBJ_NAME_SZ);
- sprintf((uint8_t *)read_object->u.request.rd_object_name, rdobject);
+ scnprintf((char *)rd_object_name, sizeof(rd_object_name), rdobject);
for (j = 0; j < strlen(rdobject); j++)
read_object->u.request.rd_object_name[j] =
- cpu_to_le32(read_object->u.request.rd_object_name[j]);
+ cpu_to_le32(rd_object_name[j]);
pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL);
if (pcmd)
raid = MR_LdRaidGet(ld, local_map_ptr);
if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER)
- blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
+ blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
mr_device_priv_data->is_tm_capable =
raid->capability.tmCapable;
if (instance->adapter_type != MFI_SERIES) {
megasas_release_fusion(instance);
- pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
+ pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
(sizeof(struct MR_PD_CFG_SEQ) *
(MAX_PHYSICAL_DEVICES - 1));
for (i = 0; i < 2 ; i++) {
if (event_type & SCAN_VD_CHANNEL) {
if (!instance->requestorId ||
- (instance->requestorId &&
- megasas_get_ld_vf_affiliation(instance, 0))) {
+ megasas_get_ld_vf_affiliation(instance, 0)) {
dcmd_ret = megasas_ld_list_query(instance,
MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);
if (dcmd_ret != DCMD_SUCCESS)
* wait for current poll to complete.
*/
for (qid = 0; qid < iopoll_q_count; qid++) {
- while (atomic_read(&ioc->io_uring_poll_queues[qid].busy))
+ while (atomic_read(&ioc->io_uring_poll_queues[qid].busy)) {
+ cpu_relax();
udelay(500);
+ }
}
}
mpt3sas_check_cmd_timeout(ioc,
ioc->ctl_cmds.status, mpi_request,
sizeof(Mpi2DiagReleaseRequest_t)/4, reset_needed);
- *issue_reset = reset_needed;
+ *issue_reset = reset_needed;
rc = -EFAULT;
goto out;
}
case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST:
_scsih_pcie_topology_change_event(ioc, fw_event);
ioc->current_event = NULL;
- return;
- break;
+ return;
}
out:
fw_event_work_put(fw_event);
static void ncr_put_start_queue(struct ncb *np, struct ccb *cp);
static void insert_into_waiting_list(struct ncb *np, struct scsi_cmnd *cmd);
-static struct scsi_cmnd *retrieve_from_waiting_list(int to_remove, struct ncb *np, struct scsi_cmnd *cmd);
static void process_waiting_list(struct ncb *np, int sts);
-#define remove_from_waiting_list(np, cmd) \
- retrieve_from_waiting_list(1, (np), (cmd))
#define requeue_waiting_list(np) process_waiting_list((np), DID_OK)
#define reset_waiting_list(np) process_waiting_list((np), DID_RESET)
}
}
-static struct scsi_cmnd *retrieve_from_waiting_list(int to_remove, struct ncb *np, struct scsi_cmnd *cmd)
-{
- struct scsi_cmnd **pcmd = &np->waiting_list;
-
- while (*pcmd) {
- if (cmd == *pcmd) {
- if (to_remove) {
- *pcmd = (struct scsi_cmnd *) cmd->next_wcmd;
- cmd->next_wcmd = NULL;
- }
-#ifdef DEBUG_WAITING_LIST
- printk("%s: cmd %lx retrieved from waiting list\n", ncr_name(np), (u_long) cmd);
-#endif
- return cmd;
- }
- pcmd = (struct scsi_cmnd **) &(*pcmd)->next_wcmd;
- }
- return NULL;
-}
-
static void process_waiting_list(struct ncb *np, int sts)
{
struct scsi_cmnd *waiting_list, *wcmd;
return 0;
break;
case QLA2XXX_INI_MODE_DUAL:
- if (!qla_dual_mode_enabled(vha))
+ if (!qla_dual_mode_enabled(vha) &&
+ !qla_ini_mode_enabled(vha))
return 0;
break;
case QLA2XXX_INI_MODE_ENABLED:
struct iscsi_transport *t = iface->transport;
int param = -1;
- if (attr == &dev_attr_iface_enabled.attr)
- param = ISCSI_NET_PARAM_IFACE_ENABLE;
- else if (attr == &dev_attr_iface_def_taskmgmt_tmo.attr)
+ if (attr == &dev_attr_iface_def_taskmgmt_tmo.attr)
param = ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO;
else if (attr == &dev_attr_iface_header_digest.attr)
param = ISCSI_IFACE_PARAM_HDRDGST_EN;
if (param != -1)
return t->attr_is_visible(ISCSI_IFACE_PARAM, param);
- if (attr == &dev_attr_iface_vlan_id.attr)
+ if (attr == &dev_attr_iface_enabled.attr)
+ param = ISCSI_NET_PARAM_IFACE_ENABLE;
+ else if (attr == &dev_attr_iface_vlan_id.attr)
param = ISCSI_NET_PARAM_VLAN_ID;
else if (attr == &dev_attr_iface_vlan_priority.attr)
param = ISCSI_NET_PARAM_VLAN_PRIORITY;
retries = 0;
do {
+ bool media_was_present = sdkp->media_present;
+
cmd[0] = TEST_UNIT_READY;
memset((void *) &cmd[1], 0, 9);
* with any more polling.
*/
if (media_not_present(sdkp, &sshdr)) {
- sd_printk(KERN_NOTICE, sdkp, "Media removed, stopped polling\n");
+ if (media_was_present)
+ sd_printk(KERN_NOTICE, sdkp, "Media removed, stopped polling\n");
return;
}
}
device_initialize(&sdkp->dev);
- sdkp->dev.parent = dev;
+ sdkp->dev.parent = get_device(dev);
sdkp->dev.class = &sd_disk_class;
dev_set_name(&sdkp->dev, "%s", dev_name(dev));
error = device_add(&sdkp->dev);
- if (error)
- goto out_free_index;
+ if (error) {
+ put_device(&sdkp->dev);
+ goto out;
+ }
- get_device(dev);
dev_set_drvdata(dev, sdkp);
gd->major = sd_major((index & 0xf0) >> 4);
/*
* Report zone buffer size should be at most 64B times the number of
- * zones requested plus the 64B reply header, but should be at least
- * SECTOR_SIZE for ATA devices.
+ * zones requested plus the 64B reply header, but should be aligned
+ * to SECTOR_SIZE for ATA devices.
* Make sure that this size does not exceed the hardware capabilities.
* Furthermore, since the report zone command cannot be split, make
* sure that the allocated buffer can always be mapped by limiting the
*buflen = bufsize;
return buf;
}
- bufsize >>= 1;
+ bufsize = rounddown(bufsize >> 1, SECTOR_SIZE);
}
return NULL;
{
struct scsi_disk *sdkp;
unsigned long flags;
- unsigned int zno;
+ sector_t zno;
int ret;
sdkp = container_of(work, struct scsi_disk, zone_wp_offset_work);
0
};
unsigned char recv_page_code;
+ unsigned int retries = SES_RETRIES;
+ struct scsi_sense_hdr sshdr;
+
+ do {
+ ret = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
+ &sshdr, SES_TIMEOUT, 1, NULL);
+ } while (ret > 0 && --retries && scsi_sense_valid(&sshdr) &&
+ (sshdr.sense_key == NOT_READY ||
+ (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
- ret = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
- NULL, SES_TIMEOUT, SES_RETRIES, NULL);
if (unlikely(ret))
return ret;
bufflen & 0xff,
0
};
+ struct scsi_sense_hdr sshdr;
+ unsigned int retries = SES_RETRIES;
+
+ do {
+ result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen,
+ &sshdr, SES_TIMEOUT, 1, NULL);
+ } while (result > 0 && --retries && scsi_sense_valid(&sshdr) &&
+ (sshdr.sense_key == NOT_READY ||
+ (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
- result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen,
- NULL, SES_TIMEOUT, SES_RETRIES, NULL);
if (result)
sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n",
result);
return rc;
cd->readcd_known = 0;
sr_printk(KERN_INFO, cd,
- "CDROM does'nt support READ CD (0xbe) command\n");
+ "CDROM doesn't support READ CD (0xbe) command\n");
/* fall & retry the other way */
}
/* ... if this fails, we switch the blocksize using MODE SELECT */
case CDROM_SEND_PACKET:
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
+ break;
default:
break;
}
return err;
}
+static int ufs_intel_set_lanes(struct ufs_hba *hba, u32 lanes)
+{
+ struct ufs_pa_layer_attr pwr_info = hba->pwr_info;
+ int ret;
+
+ pwr_info.lane_rx = lanes;
+ pwr_info.lane_tx = lanes;
+ ret = ufshcd_config_pwr_mode(hba, &pwr_info);
+ if (ret)
+ dev_err(hba->dev, "%s: Setting %u lanes, err = %d\n",
+ __func__, lanes, ret);
+ return ret;
+}
+
+static int ufs_intel_lkf_pwr_change_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status,
+ struct ufs_pa_layer_attr *dev_max_params,
+ struct ufs_pa_layer_attr *dev_req_params)
+{
+ int err = 0;
+
+ switch (status) {
+ case PRE_CHANGE:
+ if (ufshcd_is_hs_mode(dev_max_params) &&
+ (hba->pwr_info.lane_rx != 2 || hba->pwr_info.lane_tx != 2))
+ ufs_intel_set_lanes(hba, 2);
+ memcpy(dev_req_params, dev_max_params, sizeof(*dev_req_params));
+ break;
+ case POST_CHANGE:
+ if (ufshcd_is_hs_mode(dev_req_params)) {
+ u32 peer_granularity;
+
+ usleep_range(1000, 1250);
+ err = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY),
+ &peer_granularity);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return err;
+}
+
+static int ufs_intel_lkf_apply_dev_quirks(struct ufs_hba *hba)
+{
+ u32 granularity, peer_granularity;
+ u32 pa_tactivate, peer_pa_tactivate;
+ int ret;
+
+ ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_GRANULARITY), &granularity);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY), &peer_granularity);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &pa_tactivate);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &peer_pa_tactivate);
+ if (ret)
+ goto out;
+
+ if (granularity == peer_granularity) {
+ u32 new_peer_pa_tactivate = pa_tactivate + 2;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(PA_TACTIVATE), new_peer_pa_tactivate);
+ }
+out:
+ return ret;
+}
+
#define INTEL_ACTIVELTR 0x804
#define INTEL_IDLELTR 0x808
struct ufs_host *ufs_host;
int err;
+ hba->nop_out_timeout = 200;
hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8;
hba->caps |= UFSHCD_CAP_CRYPTO;
err = ufs_intel_common_init(hba);
.exit = ufs_intel_common_exit,
.hce_enable_notify = ufs_intel_hce_enable_notify,
.link_startup_notify = ufs_intel_link_startup_notify,
+ .pwr_change_notify = ufs_intel_lkf_pwr_change_notify,
+ .apply_dev_quirks = ufs_intel_lkf_apply_dev_quirks,
.resume = ufs_intel_resume,
.device_reset = ufs_intel_device_reset,
};
#include <linux/blk-pm.h>
#include <linux/blkdev.h>
#include <scsi/scsi_driver.h>
-#include <scsi/scsi_transport.h>
-#include "../scsi_transport_api.h"
#include "ufshcd.h"
#include "ufs_quirks.h"
#include "unipro.h"
static irqreturn_t ufshcd_intr(int irq, void *__hba);
static int ufshcd_change_power_mode(struct ufs_hba *hba,
struct ufs_pa_layer_attr *pwr_mode);
+static void ufshcd_schedule_eh_work(struct ufs_hba *hba);
static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on);
static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on);
static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
out:
up_read(&hba->clk_scaling_lock);
- if (ufs_trigger_eh())
- scsi_schedule_eh(hba->host);
+ if (ufs_trigger_eh()) {
+ unsigned long flags;
+
+ spin_lock_irqsave(hba->host->host_lock, flags);
+ ufshcd_schedule_eh_work(hba);
+ spin_unlock_irqrestore(hba->host->host_lock, flags);
+ }
return err;
}
}
EXPORT_SYMBOL_GPL(ufshcd_dme_get_attr);
-static inline bool ufshcd_is_saved_err_fatal(struct ufs_hba *hba)
-{
- lockdep_assert_held(hba->host->host_lock);
-
- return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) ||
- (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK));
-}
-
-static void ufshcd_schedule_eh(struct ufs_hba *hba)
-{
- bool schedule_eh = false;
- unsigned long flags;
-
- spin_lock_irqsave(hba->host->host_lock, flags);
- /* handle fatal errors only when link is not in error state */
- if (hba->ufshcd_state != UFSHCD_STATE_ERROR) {
- if (hba->force_reset || ufshcd_is_link_broken(hba) ||
- ufshcd_is_saved_err_fatal(hba))
- hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL;
- else
- hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL;
- schedule_eh = true;
- }
- spin_unlock_irqrestore(hba->host->host_lock, flags);
-
- if (schedule_eh)
- scsi_schedule_eh(hba->host);
-}
-
/**
* ufshcd_uic_pwr_ctrl - executes UIC commands (which affects the link power
* state) and waits for it to take effect.
{
DECLARE_COMPLETION_ONSTACK(uic_async_done);
unsigned long flags;
- bool schedule_eh = false;
u8 status;
int ret;
bool reenable_intr = false;
ufshcd_enable_intr(hba, UIC_COMMAND_COMPL);
if (ret) {
ufshcd_set_link_broken(hba);
- schedule_eh = true;
+ ufshcd_schedule_eh_work(hba);
}
-
out_unlock:
spin_unlock_irqrestore(hba->host->host_lock, flags);
-
- if (schedule_eh)
- ufshcd_schedule_eh(hba);
mutex_unlock(&hba->uic_cmd_mutex);
return ret;
mutex_lock(&hba->dev_cmd.lock);
for (retries = NOP_OUT_RETRIES; retries > 0; retries--) {
err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_NOP,
- NOP_OUT_TIMEOUT);
+ hba->nop_out_timeout);
if (!err || err == -ETIMEDOUT)
break;
return err_handling;
}
+/* host lock must be held before calling this func */
+static inline bool ufshcd_is_saved_err_fatal(struct ufs_hba *hba)
+{
+ return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) ||
+ (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK));
+}
+
+/* host lock must be held before calling this func */
+static inline void ufshcd_schedule_eh_work(struct ufs_hba *hba)
+{
+ /* handle fatal errors only when link is not in error state */
+ if (hba->ufshcd_state != UFSHCD_STATE_ERROR) {
+ if (hba->force_reset || ufshcd_is_link_broken(hba) ||
+ ufshcd_is_saved_err_fatal(hba))
+ hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL;
+ else
+ hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL;
+ queue_work(hba->eh_wq, &hba->eh_work);
+ }
+}
+
static void ufshcd_clk_scaling_allow(struct ufs_hba *hba, bool allow)
{
down_write(&hba->clk_scaling_lock);
/**
* ufshcd_err_handler - handle UFS errors that require s/w attention
- * @host: SCSI host pointer
+ * @work: pointer to work structure
*/
-static void ufshcd_err_handler(struct Scsi_Host *host)
+static void ufshcd_err_handler(struct work_struct *work)
{
- struct ufs_hba *hba = shost_priv(host);
+ struct ufs_hba *hba;
unsigned long flags;
bool err_xfer = false;
bool err_tm = false;
int tag;
bool needs_reset = false, needs_restore = false;
+ hba = container_of(work, struct ufs_hba, eh_work);
+
down(&hba->host_sem);
spin_lock_irqsave(hba->host->host_lock, flags);
- hba->host->host_eh_scheduled = 0;
if (ufshcd_err_handling_should_stop(hba)) {
if (hba->ufshcd_state != UFSHCD_STATE_ERROR)
hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL;
"host_regs: ");
ufshcd_print_pwr_info(hba);
}
+ ufshcd_schedule_eh_work(hba);
retval |= IRQ_HANDLED;
}
/*
hba->errors = 0;
hba->uic_error = 0;
spin_unlock(hba->host->host_lock);
-
- if (queue_eh_work)
- ufshcd_schedule_eh(hba);
-
return retval;
}
err = ufshcd_clear_cmd(hba, pos);
if (err)
break;
- __ufshcd_transfer_req_compl(hba, pos, /*retry_requests=*/true);
+ __ufshcd_transfer_req_compl(hba, 1U << pos, false);
}
}
* will be to send LU reset which, again, is a spec violation.
* To avoid these unnecessary/illegal steps, first we clean up
* the lrb taken by this cmd and re-set it in outstanding_reqs,
- * then queue the error handler and bail.
+ * then queue the eh_work and bail.
*/
if (lrbp->lun == UFS_UPIU_UFS_DEVICE_WLUN) {
ufshcd_update_evt_hist(hba, UFS_EVT_ABORT, lrbp->lun);
spin_lock_irqsave(host->host_lock, flags);
hba->force_reset = true;
+ ufshcd_schedule_eh_work(hba);
spin_unlock_irqrestore(host->host_lock, flags);
-
- ufshcd_schedule_eh(hba);
-
goto release;
}
spin_lock_irqsave(hba->host->host_lock, flags);
hba->force_reset = true;
+ ufshcd_schedule_eh_work(hba);
dev_err(hba->dev, "%s: reset in progress - 1\n", __func__);
spin_unlock_irqrestore(hba->host->host_lock, flags);
- ufshcd_err_handler(hba->host);
+ flush_work(&hba->eh_work);
spin_lock_irqsave(hba->host->host_lock, flags);
if (hba->ufshcd_state == UFSHCD_STATE_ERROR)
if (hba->is_powered) {
ufshcd_exit_clk_scaling(hba);
ufshcd_exit_clk_gating(hba);
+ if (hba->eh_wq)
+ destroy_workqueue(hba->eh_wq);
ufs_debugfs_hba_exit(hba);
ufshcd_variant_hba_exit(hba);
ufshcd_setup_vreg(hba, false);
return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32));
}
-static struct scsi_transport_template ufshcd_transport_template = {
- .eh_strategy_handler = ufshcd_err_handler,
-};
-
/**
* ufshcd_alloc_host - allocate Host Bus Adapter (HBA)
* @dev: pointer to device handle
err = -ENOMEM;
goto out_error;
}
- host->transportt = &ufshcd_transport_template;
hba = shost_priv(host);
hba->host = host;
hba->dev = dev;
hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL;
+ hba->nop_out_timeout = NOP_OUT_TIMEOUT;
INIT_LIST_HEAD(&hba->clk_list_head);
spin_lock_init(&hba->outstanding_lock);
int err;
struct Scsi_Host *host = hba->host;
struct device *dev = hba->dev;
+ char eh_wq_name[sizeof("ufs_eh_wq_00")];
if (!mmio_base) {
dev_err(hba->dev,
hba->max_pwr_info.is_valid = false;
+ /* Initialize work queues */
+ snprintf(eh_wq_name, sizeof(eh_wq_name), "ufs_eh_wq_%d",
+ hba->host->host_no);
+ hba->eh_wq = create_singlethread_workqueue(eh_wq_name);
+ if (!hba->eh_wq) {
+ dev_err(hba->dev, "%s: failed to create eh workqueue\n",
+ __func__);
+ err = -ENOMEM;
+ goto out_disable;
+ }
+ INIT_WORK(&hba->eh_work, ufshcd_err_handler);
INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler);
sema_init(&hba->host_sem, 1);
* @is_powered: flag to check if HBA is powered
* @shutting_down: flag to check if shutdown has been invoked
* @host_sem: semaphore used to serialize concurrent contexts
+ * @eh_wq: Workqueue that eh_work works on
+ * @eh_work: Worker to handle UFS errors that require s/w attention
* @eeh_work: Worker to handle exception events
* @errors: HBA errors
* @uic_error: UFS interconnect layer error status
struct semaphore host_sem;
/* Work Queues */
+ struct workqueue_struct *eh_wq;
+ struct work_struct eh_work;
struct work_struct eeh_work;
/* HBA Errors */
/* Device management request data */
struct ufs_dev_cmd dev_cmd;
ktime_t last_dme_cmd_tstamp;
+ int nop_out_timeout;
/* Keeps information of the UFS device connected to this host */
struct ufs_dev_info dev_info;
}
static void
-ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshpb_lu *hpb,
- struct ufshcd_lrb *lrbp, u32 lpn, __be64 ppn,
- u8 transfer_len, int read_id)
+ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
+ __be64 ppn, u8 transfer_len, int read_id)
{
unsigned char *cdb = lrbp->cmd->cmnd;
__be64 ppn_tmp = ppn;
}
}
- ufshpb_set_hpb_read_to_upiu(hba, hpb, lrbp, lpn, ppn, transfer_len,
- read_id);
+ ufshpb_set_hpb_read_to_upiu(hba, lrbp, ppn, transfer_len, read_id);
hpb->stats.hit_cnt++;
return 0;
int ret;
bool use_dma;
+ /* Zero length transfers won't trigger an interrupt on completion */
+ if (!xfer->len) {
+ spi_finalize_current_transfer(ctlr);
+ return 1;
+ }
+
WARN_ON(readl_relaxed(rs->regs + ROCKCHIP_SPI_SSIENR) &&
(readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_BUSY));
struct dma_async_tx_descriptor *tx_dma_desc;
};
-static int tegra_slink_runtime_suspend(struct device *dev);
-static int tegra_slink_runtime_resume(struct device *dev);
-
static inline u32 tegra_slink_readl(struct tegra_slink_data *tspi,
unsigned long reg)
{
}
#endif
+#ifdef CONFIG_PM
static int tegra_slink_runtime_suspend(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
}
return 0;
}
+#endif /* CONFIG_PM */
static const struct dev_pm_ops slink_pm_ops = {
SET_RUNTIME_PM_OPS(tegra_slink_runtime_suspend,
const struct spi_device *spi = to_spi_device(dev);
int len;
- len = of_device_modalias(dev, buf, PAGE_SIZE);
- if (len != -ENODEV)
- return len;
-
len = acpi_device_modalias(dev, buf, PAGE_SIZE - 1);
if (len != -ENODEV)
return len;
const struct spi_device *spi = to_spi_device(dev);
int rc;
- rc = of_device_uevent_modalias(dev, env);
- if (rc != -ENODEV)
- return rc;
-
rc = acpi_device_uevent_modalias(dev, env);
if (rc != -ENODEV)
return rc;
gbphy_runtime_put_autosuspend(gb_tty->gbphy_dev);
}
+static void gb_tty_port_destruct(struct tty_port *port)
+{
+ struct gb_tty *gb_tty = container_of(port, struct gb_tty, port);
+
+ if (gb_tty->minor != GB_NUM_MINORS)
+ release_minor(gb_tty);
+ kfifo_free(&gb_tty->write_fifo);
+ kfree(gb_tty->buffer);
+ kfree(gb_tty);
+}
+
static const struct tty_operations gb_ops = {
.install = gb_tty_install,
.open = gb_tty_open,
.dtr_rts = gb_tty_dtr_rts,
.activate = gb_tty_port_activate,
.shutdown = gb_tty_port_shutdown,
+ .destruct = gb_tty_port_destruct,
};
static int gb_uart_probe(struct gbphy_device *gbphy_dev,
int retval;
int minor;
- gb_tty = kzalloc(sizeof(*gb_tty), GFP_KERNEL);
- if (!gb_tty)
- return -ENOMEM;
-
connection = gb_connection_create(gbphy_dev->bundle,
le16_to_cpu(gbphy_dev->cport_desc->id),
gb_uart_request_handler);
- if (IS_ERR(connection)) {
- retval = PTR_ERR(connection);
- goto exit_tty_free;
- }
+ if (IS_ERR(connection))
+ return PTR_ERR(connection);
max_payload = gb_operation_get_payload_size_max(connection);
if (max_payload < sizeof(struct gb_uart_send_data_request)) {
goto exit_connection_destroy;
}
+ gb_tty = kzalloc(sizeof(*gb_tty), GFP_KERNEL);
+ if (!gb_tty) {
+ retval = -ENOMEM;
+ goto exit_connection_destroy;
+ }
+
+ tty_port_init(&gb_tty->port);
+ gb_tty->port.ops = &gb_port_ops;
+ gb_tty->minor = GB_NUM_MINORS;
+
gb_tty->buffer_payload_max = max_payload -
sizeof(struct gb_uart_send_data_request);
gb_tty->buffer = kzalloc(gb_tty->buffer_payload_max, GFP_KERNEL);
if (!gb_tty->buffer) {
retval = -ENOMEM;
- goto exit_connection_destroy;
+ goto exit_put_port;
}
INIT_WORK(&gb_tty->tx_work, gb_uart_tx_write_work);
retval = kfifo_alloc(&gb_tty->write_fifo, GB_UART_WRITE_FIFO_SIZE,
GFP_KERNEL);
if (retval)
- goto exit_buf_free;
+ goto exit_put_port;
gb_tty->credits = GB_UART_FIRMWARE_CREDITS;
init_completion(&gb_tty->credits_complete);
} else {
retval = minor;
}
- goto exit_kfifo_free;
+ goto exit_put_port;
}
gb_tty->minor = minor;
init_waitqueue_head(&gb_tty->wioctl);
mutex_init(&gb_tty->mutex);
- tty_port_init(&gb_tty->port);
- gb_tty->port.ops = &gb_port_ops;
-
gb_tty->connection = connection;
gb_tty->gbphy_dev = gbphy_dev;
gb_connection_set_data(connection, gb_tty);
retval = gb_connection_enable_tx(connection);
if (retval)
- goto exit_release_minor;
+ goto exit_put_port;
send_control(gb_tty, gb_tty->ctrlout);
exit_connection_disable:
gb_connection_disable(connection);
-exit_release_minor:
- release_minor(gb_tty);
-exit_kfifo_free:
- kfifo_free(&gb_tty->write_fifo);
-exit_buf_free:
- kfree(gb_tty->buffer);
+exit_put_port:
+ tty_port_put(&gb_tty->port);
exit_connection_destroy:
gb_connection_destroy(connection);
-exit_tty_free:
- kfree(gb_tty);
return retval;
}
gb_connection_disable_rx(connection);
tty_unregister_device(gb_tty_driver, gb_tty->minor);
- /* FIXME - free transmit / receive buffers */
-
gb_connection_disable(connection);
- tty_port_destroy(&gb_tty->port);
gb_connection_destroy(connection);
- release_minor(gb_tty);
- kfifo_free(&gb_tty->write_fifo);
- kfree(gb_tty->buffer);
- kfree(gb_tty);
+
+ tty_port_put(&gb_tty->port);
}
static int gb_tty_init(void)
if (!vpu->variant->irqs[i].handler)
continue;
- if (vpu->variant->num_clocks > 1) {
+ if (vpu->variant->num_irqs > 1) {
irq_name = vpu->variant->irqs[i].name;
irq = platform_get_irq_byname(vpu->pdev, irq_name);
} else {
sizeimage = bytesperline * height;
/* Chroma plane size. */
- sizeimage += bytesperline * height / 2;
+ sizeimage += bytesperline * ALIGN(height, 64) / 2;
break;
pnext++;
if (*pnext != '\0') {
- strtout = simple_strtoul(pnext, &ptmp, 16);
- sprintf(extra, "%s %d", extra, strtout);
+ strtout = simple_strtoul(pnext, &ptmp, 16);
+ sprintf(extra + strlen(extra), " %d", strtout);
} else {
break;
}
pnext++;
if (*pnext != '\0') {
strtout = simple_strtoul(pnext, &ptmp, 16);
- sprintf(extra, "%s %d", extra, strtout);
+ sprintf(extra + strlen(extra), " %d", strtout);
} else {
break;
}
pnext++;
if (*pnext != '\0') {
strtou = simple_strtoul(pnext, &ptmp, 16);
- sprintf(extra, "%s %d", extra, strtou);
+ sprintf(extra + strlen(extra), " %d", strtou);
} else {
break;
}
{
struct se_dev_attrib *da = to_attrib(item);
struct se_device *dev = da->da_dev;
- bool flag;
+ bool flag, oldflag;
int ret;
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ oldflag = !(dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA);
+ if (flag == oldflag)
+ return count;
+
if (!(dev->transport->transport_flags_changeable &
TRANSPORT_FLAG_PASSTHROUGH_ALUA)) {
pr_err("dev[%p]: Unable to change SE Device alua_support:"
" alua_support has fixed value\n", dev);
- return -EINVAL;
+ return -ENOSYS;
}
- ret = strtobool(page, &flag);
- if (ret < 0)
- return ret;
-
if (flag)
dev->transport_flags &= ~TRANSPORT_FLAG_PASSTHROUGH_ALUA;
else
{
struct se_dev_attrib *da = to_attrib(item);
struct se_device *dev = da->da_dev;
- bool flag;
+ bool flag, oldflag;
int ret;
+ ret = strtobool(page, &flag);
+ if (ret < 0)
+ return ret;
+
+ oldflag = !(dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR);
+ if (flag == oldflag)
+ return count;
+
if (!(dev->transport->transport_flags_changeable &
TRANSPORT_FLAG_PASSTHROUGH_PGR)) {
pr_err("dev[%p]: Unable to change SE Device pgr_support:"
" pgr_support has fixed value\n", dev);
- return -EINVAL;
+ return -ENOSYS;
}
- ret = strtobool(page, &flag);
- if (ret < 0)
- return ret;
-
if (flag)
dev->transport_flags &= ~TRANSPORT_FLAG_PASSTHROUGH_PGR;
else
spin_lock(&dev->dev_reservation_lock);
if (dev->reservation_holder &&
dev->reservation_holder->se_node_acl != sess->se_node_acl) {
- pr_err("SCSI-2 RESERVATION CONFLIFT for %s fabric\n",
+ pr_err("SCSI-2 RESERVATION CONFLICT for %s fabric\n",
tpg->se_tpg_tfo->fabric_name);
pr_err("Original reserver LUN: %llu %s\n",
cmd->se_lun->unpacked_lun,
return 0;
}
-static unsigned int tcc_offset_save;
+static int tcc_offset_save = -1;
static ssize_t tcc_offset_degree_celsius_store(struct device *dev,
struct device_attribute *attr, const char *buf,
proc_dev = dev_get_drvdata(dev);
proc_thermal_read_ppcc(proc_dev);
- tcc_offset_update(tcc_offset_save);
+ if (tcc_offset_save >= 0)
+ tcc_offset_update(tcc_offset_save);
return 0;
}
const struct tsens_sensor *s = &priv->sensor[i];
u32 hw_id = s->hw_id;
- if (IS_ERR(s->tzd))
+ if (!s->tzd)
continue;
if (!tsens_threshold_violated(priv, hw_id, &d))
continue;
const struct tsens_sensor *s = &priv->sensor[i];
u32 hw_id = s->hw_id;
- if (IS_ERR(s->tzd))
+ if (!s->tzd)
continue;
if (!tsens_threshold_violated(priv, hw_id, &d))
continue;
{
struct thermal_governor *pos;
ssize_t count = 0;
- ssize_t size = PAGE_SIZE;
mutex_lock(&thermal_governor_lock);
list_for_each_entry(pos, &thermal_governor_list, governor_list) {
- size = PAGE_SIZE - count;
- count += scnprintf(buf + count, size, "%s ", pos->name);
+ count += scnprintf(buf + count, PAGE_SIZE - count, "%s ",
+ pos->name);
}
- count += scnprintf(buf + count, size, "\n");
+ count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
mutex_unlock(&thermal_governor_lock);
#define UART_OMAP_EFR2_TIMEOUT_BEHAVE BIT(6)
/* RX FIFO occupancy indicator */
-#define UART_OMAP_RX_LVL 0x64
+#define UART_OMAP_RX_LVL 0x19
struct omap8250_priv {
int line;
st = readl(port->membase + UART_STAT);
spin_unlock_irqrestore(&port->lock, flags);
- return (st & STAT_TX_FIFO_EMP) ? TIOCSER_TEMT : 0;
+ return (st & STAT_TX_EMP) ? TIOCSER_TEMT : 0;
}
static unsigned int mvebu_uart_get_mctrl(struct uart_port *port)
static void tdma_reset(struct slgt_info *info);
static bool tx_load(struct slgt_info *info, const char *buf, unsigned int count);
-static void get_signals(struct slgt_info *info);
-static void set_signals(struct slgt_info *info);
+static void get_gtsignals(struct slgt_info *info);
+static void set_gtsignals(struct slgt_info *info);
static void set_rate(struct slgt_info *info, u32 data_rate);
static void bh_transmit(struct slgt_info *info);
if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) {
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
if (!C_CRTSCTS(tty) || !tty_throttled(tty))
info->signals |= SerialSignal_RTS;
spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
/* output current serial signal states */
spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
stat_buf[0] = 0;
if (C_CRTSCTS(tty)) {
spin_lock_irqsave(&info->lock,flags);
info->signals &= ~SerialSignal_RTS;
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
}
if (C_CRTSCTS(tty)) {
spin_lock_irqsave(&info->lock,flags);
info->signals |= SerialSignal_RTS;
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
}
/* inform generic HDLC layer of current DCD status */
spin_lock_irqsave(&info->lock, flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock, flags);
if (info->signals & SerialSignal_DCD)
netif_carrier_on(dev);
if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) {
info->signals &= ~SerialSignal_RTS;
info->drop_rts_on_tx_done = false;
- set_signals(info);
+ set_gtsignals(info);
}
#if SYNCLINK_GENERIC_HDLC
if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
- set_signals(info);
+ set_gtsignals(info);
}
flush_cond_wait(&info->gpio_wait_q);
else
async_mode(info);
- set_signals(info);
+ set_gtsignals(info);
info->dcd_chkcount = 0;
info->cts_chkcount = 0;
info->dsr_chkcount = 0;
slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI);
- get_signals(info);
+ get_gtsignals(info);
if (info->netcount ||
(info->port.tty && info->port.tty->termios.c_cflag & CREAD))
spin_lock_irqsave(&info->lock,flags);
/* return immediately if state matches requested events */
- get_signals(info);
+ get_gtsignals(info);
s = info->signals;
events = mask &
unsigned long flags;
spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
info->signals &= ~SerialSignal_DTR;
spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
return 0;
}
struct slgt_info *info = container_of(port, struct slgt_info, port);
spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
+ get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
return (info->signals & SerialSignal_DCD) ? 1 : 0;
}
info->signals |= SerialSignal_RTS | SerialSignal_DTR;
else
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
- set_signals(info);
+ set_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
if (info->params.mode != MGSL_MODE_ASYNC) {
if (info->params.flags & HDLC_FLAG_AUTO_RTS) {
- get_signals(info);
+ get_gtsignals(info);
if (!(info->signals & SerialSignal_RTS)) {
info->signals |= SerialSignal_RTS;
- set_signals(info);
+ set_gtsignals(info);
info->drop_rts_on_tx_done = true;
}
}
rx_stop(info);
info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
- set_signals(info);
+ set_gtsignals(info);
slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
}
/*
* get state of V24 status (input) signals
*/
-static void get_signals(struct slgt_info *info)
+static void get_gtsignals(struct slgt_info *info)
{
unsigned short status = rd_reg16(info, SSR);
/*
* set state of V24 control (output) signals
*/
-static void set_signals(struct slgt_info *info)
+static void set_gtsignals(struct slgt_info *info)
{
unsigned char val = rd_reg8(info, VCR);
if (info->signals & SerialSignal_DTR)
tty_ldisc_debug(tty, "released\n");
}
-EXPORT_SYMBOL_GPL(tty_ldisc_release);
/**
* tty_ldisc_init - ldisc setup for new tty
return 0;
}
+static void cdns3_rearm_drdy_if_needed(struct cdns3_endpoint *priv_ep)
+{
+ struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
+
+ if (priv_dev->dev_ver < DEV_VER_V3)
+ return;
+
+ if (readl(&priv_dev->regs->ep_sts) & EP_STS_TRBERR) {
+ writel(EP_STS_TRBERR, &priv_dev->regs->ep_sts);
+ writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd);
+ }
+}
+
/**
* cdns3_ep_run_transfer - start transfer on no-default endpoint hardware
* @priv_ep: endpoint object
/*clearing TRBERR and EP_STS_DESCMIS before seting DRDY*/
writel(EP_STS_TRBERR | EP_STS_DESCMIS, &priv_dev->regs->ep_sts);
writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd);
+ cdns3_rearm_drdy_if_needed(priv_ep);
trace_cdns3_doorbell_epx(priv_ep->name,
readl(&priv_dev->regs->ep_traddr));
}
{
struct acm *acm = container_of(port, struct acm, port);
- acm_release_minor(acm);
+ if (acm->minor != ACM_MINOR_INVALID)
+ acm_release_minor(acm);
usb_put_intf(acm->control);
kfree(acm->country_codes);
kfree(acm);
usb_get_intf(acm->control); /* undone in destruct() */
minor = acm_alloc_minor(acm);
- if (minor < 0)
+ if (minor < 0) {
+ acm->minor = ACM_MINOR_INVALID;
goto err_put_port;
+ }
acm->minor = minor;
acm->dev = usb_dev;
#define ACM_TTY_MAJOR 166
#define ACM_TTY_MINORS 256
+#define ACM_MINOR_INVALID ACM_TTY_MINORS
+
/*
* Requests.
*/
}
/**
+ * usb_stop_hcd - Halt the HCD
+ * @hcd: the usb_hcd that has to be halted
+ *
+ * Stop the root-hub polling timer and invoke the HCD's ->stop callback.
+ */
+static void usb_stop_hcd(struct usb_hcd *hcd)
+{
+ hcd->rh_pollable = 0;
+ clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+ del_timer_sync(&hcd->rh_timer);
+
+ hcd->driver->stop(hcd);
+ hcd->state = HC_STATE_HALT;
+
+ /* In case the HCD restarted the timer, stop it again. */
+ clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+ del_timer_sync(&hcd->rh_timer);
+}
+
+/**
* usb_add_hcd - finish generic HCD structure initialization and register
* @hcd: the usb_hcd structure to initialize
* @irqnum: Interrupt line to allocate
{
int retval;
struct usb_device *rhdev;
+ struct usb_hcd *shared_hcd;
if (!hcd->skip_phy_initialization && usb_hcd_is_primary_hcd(hcd)) {
hcd->phy_roothub = usb_phy_roothub_alloc(hcd->self.sysdev);
goto err_hcd_driver_start;
}
+ /* starting here, usbcore will pay attention to the shared HCD roothub */
+ shared_hcd = hcd->shared_hcd;
+ if (!usb_hcd_is_primary_hcd(hcd) && shared_hcd && HCD_DEFER_RH_REGISTER(shared_hcd)) {
+ retval = register_root_hub(shared_hcd);
+ if (retval != 0)
+ goto err_register_root_hub;
+
+ if (shared_hcd->uses_new_polling && HCD_POLL_RH(shared_hcd))
+ usb_hcd_poll_rh_status(shared_hcd);
+ }
+
/* starting here, usbcore will pay attention to this root hub */
- retval = register_root_hub(hcd);
- if (retval != 0)
- goto err_register_root_hub;
+ if (!HCD_DEFER_RH_REGISTER(hcd)) {
+ retval = register_root_hub(hcd);
+ if (retval != 0)
+ goto err_register_root_hub;
- if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
- usb_hcd_poll_rh_status(hcd);
+ if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
+ usb_hcd_poll_rh_status(hcd);
+ }
return retval;
err_register_root_hub:
- hcd->rh_pollable = 0;
- clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
- del_timer_sync(&hcd->rh_timer);
- hcd->driver->stop(hcd);
- hcd->state = HC_STATE_HALT;
- clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
- del_timer_sync(&hcd->rh_timer);
+ usb_stop_hcd(hcd);
err_hcd_driver_start:
if (usb_hcd_is_primary_hcd(hcd) && hcd->irq > 0)
free_irq(irqnum, hcd);
void usb_remove_hcd(struct usb_hcd *hcd)
{
struct usb_device *rhdev = hcd->self.root_hub;
+ bool rh_registered;
dev_info(hcd->self.controller, "remove, state %x\n", hcd->state);
dev_dbg(hcd->self.controller, "roothub graceful disconnect\n");
spin_lock_irq (&hcd_root_hub_lock);
+ rh_registered = hcd->rh_registered;
hcd->rh_registered = 0;
spin_unlock_irq (&hcd_root_hub_lock);
cancel_work_sync(&hcd->died_work);
mutex_lock(&usb_bus_idr_lock);
- usb_disconnect(&rhdev); /* Sets rhdev to NULL */
+ if (rh_registered)
+ usb_disconnect(&rhdev); /* Sets rhdev to NULL */
mutex_unlock(&usb_bus_idr_lock);
/*
* interrupt occurs), but usb_hcd_poll_rh_status() won't invoke
* the hub_status_data() callback.
*/
- hcd->rh_pollable = 0;
- clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
- del_timer_sync(&hcd->rh_timer);
-
- hcd->driver->stop(hcd);
- hcd->state = HC_STATE_HALT;
-
- /* In case the HCD restarted the timer, stop it again. */
- clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
- del_timer_sync(&hcd->rh_timer);
+ usb_stop_hcd(hcd);
if (usb_hcd_is_primary_hcd(hcd)) {
if (hcd->irq > 0)
*/
static inline void dwc2_gadget_incr_frame_num(struct dwc2_hsotg_ep *hs_ep)
{
+ struct dwc2_hsotg *hsotg = hs_ep->parent;
+ u16 limit = DSTS_SOFFN_LIMIT;
+
+ if (hsotg->gadget.speed != USB_SPEED_HIGH)
+ limit >>= 3;
+
hs_ep->target_frame += hs_ep->interval;
- if (hs_ep->target_frame > DSTS_SOFFN_LIMIT) {
+ if (hs_ep->target_frame > limit) {
hs_ep->frame_overrun = true;
- hs_ep->target_frame &= DSTS_SOFFN_LIMIT;
+ hs_ep->target_frame &= limit;
} else {
hs_ep->frame_overrun = false;
}
*/
static inline void dwc2_gadget_dec_frame_num_by_one(struct dwc2_hsotg_ep *hs_ep)
{
+ struct dwc2_hsotg *hsotg = hs_ep->parent;
+ u16 limit = DSTS_SOFFN_LIMIT;
+
+ if (hsotg->gadget.speed != USB_SPEED_HIGH)
+ limit >>= 3;
+
if (hs_ep->target_frame)
hs_ep->target_frame -= 1;
else
- hs_ep->target_frame = DSTS_SOFFN_LIMIT;
+ hs_ep->target_frame = limit;
}
/**
dwc2_writel(hsotg, ctrl, depctl);
}
+static bool dwc2_gadget_target_frame_elapsed(struct dwc2_hsotg_ep *hs_ep);
+static void dwc2_hsotg_complete_request(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
+ struct dwc2_hsotg_req *hs_req,
+ int result);
+
/**
* dwc2_hsotg_start_req - start a USB request from an endpoint's queue
* @hsotg: The controller state.
}
}
- if (hs_ep->isochronous && hs_ep->interval == 1) {
- hs_ep->target_frame = dwc2_hsotg_read_frameno(hsotg);
- dwc2_gadget_incr_frame_num(hs_ep);
-
- if (hs_ep->target_frame & 0x1)
- ctrl |= DXEPCTL_SETODDFR;
- else
- ctrl |= DXEPCTL_SETEVENFR;
+ if (hs_ep->isochronous) {
+ if (!dwc2_gadget_target_frame_elapsed(hs_ep)) {
+ if (hs_ep->interval == 1) {
+ if (hs_ep->target_frame & 0x1)
+ ctrl |= DXEPCTL_SETODDFR;
+ else
+ ctrl |= DXEPCTL_SETEVENFR;
+ }
+ ctrl |= DXEPCTL_CNAK;
+ } else {
+ dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, -ENODATA);
+ return;
+ }
}
ctrl |= DXEPCTL_EPENA; /* ensure ep enabled */
u32 target_frame = hs_ep->target_frame;
u32 current_frame = hsotg->frame_number;
bool frame_overrun = hs_ep->frame_overrun;
+ u16 limit = DSTS_SOFFN_LIMIT;
+
+ if (hsotg->gadget.speed != USB_SPEED_HIGH)
+ limit >>= 3;
if (!frame_overrun && current_frame >= target_frame)
return true;
if (frame_overrun && current_frame >= target_frame &&
- ((current_frame - target_frame) < DSTS_SOFFN_LIMIT / 2))
+ ((current_frame - target_frame) < limit / 2))
return true;
return false;
*/
static void dwc2_gadget_start_next_request(struct dwc2_hsotg_ep *hs_ep)
{
- u32 mask;
struct dwc2_hsotg *hsotg = hs_ep->parent;
int dir_in = hs_ep->dir_in;
struct dwc2_hsotg_req *hs_req;
- u32 epmsk_reg = dir_in ? DIEPMSK : DOEPMSK;
if (!list_empty(&hs_ep->queue)) {
hs_req = get_ep_head(hs_ep);
} else {
dev_dbg(hsotg->dev, "%s: No more ISOC-OUT requests\n",
__func__);
- mask = dwc2_readl(hsotg, epmsk_reg);
- mask |= DOEPMSK_OUTTKNEPDISMSK;
- dwc2_writel(hsotg, mask, epmsk_reg);
}
}
dwc2_hsotg_program_zlp(hsotg, hsotg->eps_out[0]);
}
-static void dwc2_hsotg_change_ep_iso_parity(struct dwc2_hsotg *hsotg,
- u32 epctl_reg)
-{
- u32 ctrl;
-
- ctrl = dwc2_readl(hsotg, epctl_reg);
- if (ctrl & DXEPCTL_EOFRNUM)
- ctrl |= DXEPCTL_SETEVENFR;
- else
- ctrl |= DXEPCTL_SETODDFR;
- dwc2_writel(hsotg, ctrl, epctl_reg);
-}
-
/*
* dwc2_gadget_get_xfersize_ddma - get transferred bytes amount from desc
* @hs_ep - The endpoint on which transfer went
dwc2_hsotg_ep0_zlp(hsotg, true);
}
- /*
- * Slave mode OUT transfers do not go through XferComplete so
- * adjust the ISOC parity here.
- */
- if (!using_dma(hsotg)) {
- if (hs_ep->isochronous && hs_ep->interval == 1)
- dwc2_hsotg_change_ep_iso_parity(hsotg, DOEPCTL(epnum));
- else if (hs_ep->isochronous && hs_ep->interval > 1)
- dwc2_gadget_incr_frame_num(hs_ep);
- }
-
/* Set actual frame number for completed transfers */
- if (!using_desc_dma(hsotg) && hs_ep->isochronous)
- req->frame_number = hsotg->frame_number;
+ if (!using_desc_dma(hsotg) && hs_ep->isochronous) {
+ req->frame_number = hs_ep->target_frame;
+ dwc2_gadget_incr_frame_num(hs_ep);
+ }
dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, result);
}
return;
}
+ /* Set actual frame number for completed transfers */
+ if (!using_desc_dma(hsotg) && hs_ep->isochronous) {
+ hs_req->req.frame_number = hs_ep->target_frame;
+ dwc2_gadget_incr_frame_num(hs_ep);
+ }
+
dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
}
dwc2_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index);
- if (hs_ep->isochronous) {
- dwc2_hsotg_complete_in(hsotg, hs_ep);
- return;
- }
-
if ((epctl & DXEPCTL_STALL) && (epctl & DXEPCTL_EPTYPE_BULK)) {
int dctl = dwc2_readl(hsotg, DCTL);
dctl |= DCTL_CGNPINNAK;
dwc2_writel(hsotg, dctl, DCTL);
}
- return;
- }
+ } else {
- if (dctl & DCTL_GOUTNAKSTS) {
- dctl |= DCTL_CGOUTNAK;
- dwc2_writel(hsotg, dctl, DCTL);
+ if (dctl & DCTL_GOUTNAKSTS) {
+ dctl |= DCTL_CGOUTNAK;
+ dwc2_writel(hsotg, dctl, DCTL);
+ }
}
if (!hs_ep->isochronous)
/* Update current frame number value. */
hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);
} while (dwc2_gadget_target_frame_elapsed(hs_ep));
-
- dwc2_gadget_start_next_request(hs_ep);
}
/**
static void dwc2_gadget_handle_out_token_ep_disabled(struct dwc2_hsotg_ep *ep)
{
struct dwc2_hsotg *hsotg = ep->parent;
+ struct dwc2_hsotg_req *hs_req;
int dir_in = ep->dir_in;
- u32 doepmsk;
if (dir_in || !ep->isochronous)
return;
return;
}
- if (ep->interval > 1 &&
- ep->target_frame == TARGET_FRAME_INITIAL) {
+ if (ep->target_frame == TARGET_FRAME_INITIAL) {
u32 ctrl;
ep->target_frame = hsotg->frame_number;
- dwc2_gadget_incr_frame_num(ep);
+ if (ep->interval > 1) {
+ ctrl = dwc2_readl(hsotg, DOEPCTL(ep->index));
+ if (ep->target_frame & 0x1)
+ ctrl |= DXEPCTL_SETODDFR;
+ else
+ ctrl |= DXEPCTL_SETEVENFR;
- ctrl = dwc2_readl(hsotg, DOEPCTL(ep->index));
- if (ep->target_frame & 0x1)
- ctrl |= DXEPCTL_SETODDFR;
- else
- ctrl |= DXEPCTL_SETEVENFR;
+ dwc2_writel(hsotg, ctrl, DOEPCTL(ep->index));
+ }
+ }
+
+ while (dwc2_gadget_target_frame_elapsed(ep)) {
+ hs_req = get_ep_head(ep);
+ if (hs_req)
+ dwc2_hsotg_complete_request(hsotg, ep, hs_req, -ENODATA);
- dwc2_writel(hsotg, ctrl, DOEPCTL(ep->index));
+ dwc2_gadget_incr_frame_num(ep);
+ /* Update current frame number value. */
+ hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);
}
- dwc2_gadget_start_next_request(ep);
- doepmsk = dwc2_readl(hsotg, DOEPMSK);
- doepmsk &= ~DOEPMSK_OUTTKNEPDISMSK;
- dwc2_writel(hsotg, doepmsk, DOEPMSK);
+ if (!ep->req)
+ dwc2_gadget_start_next_request(ep);
+
}
+static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep);
+
/**
* dwc2_gadget_handle_nak - handle NAK interrupt
* @hs_ep: The endpoint on which interrupt is asserted.
static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep)
{
struct dwc2_hsotg *hsotg = hs_ep->parent;
+ struct dwc2_hsotg_req *hs_req;
int dir_in = hs_ep->dir_in;
+ u32 ctrl;
if (!dir_in || !hs_ep->isochronous)
return;
dwc2_writel(hsotg, ctrl, DIEPCTL(hs_ep->index));
}
-
- dwc2_hsotg_complete_request(hsotg, hs_ep,
- get_ep_head(hs_ep), 0);
}
- if (!using_desc_dma(hsotg))
+ if (using_desc_dma(hsotg))
+ return;
+
+ ctrl = dwc2_readl(hsotg, DIEPCTL(hs_ep->index));
+ if (ctrl & DXEPCTL_EPENA)
+ dwc2_hsotg_ep_stop_xfr(hsotg, hs_ep);
+ else
+ dwc2_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index);
+
+ while (dwc2_gadget_target_frame_elapsed(hs_ep)) {
+ hs_req = get_ep_head(hs_ep);
+ if (hs_req)
+ dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, -ENODATA);
+
dwc2_gadget_incr_frame_num(hs_ep);
+ /* Update current frame number value. */
+ hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);
+ }
+
+ if (!hs_ep->req)
+ dwc2_gadget_start_next_request(hs_ep);
}
/**
/* In DDMA handle isochronous requests separately */
if (using_desc_dma(hsotg) && hs_ep->isochronous) {
- /* XferCompl set along with BNA */
- if (!(ints & DXEPINT_BNAINTR))
- dwc2_gadget_complete_isoc_request_ddma(hs_ep);
+ dwc2_gadget_complete_isoc_request_ddma(hs_ep);
} else if (dir_in) {
/*
* We get OutDone from the FIFO, so we only
* need to look at completing IN requests here
* if operating slave mode
*/
- if (hs_ep->isochronous && hs_ep->interval > 1)
- dwc2_gadget_incr_frame_num(hs_ep);
-
- dwc2_hsotg_complete_in(hsotg, hs_ep);
- if (ints & DXEPINT_NAKINTRPT)
- ints &= ~DXEPINT_NAKINTRPT;
+ if (!hs_ep->isochronous || !(ints & DXEPINT_NAKINTRPT))
+ dwc2_hsotg_complete_in(hsotg, hs_ep);
if (idx == 0 && !hs_ep->req)
dwc2_hsotg_enqueue_setup(hsotg);
* We're using DMA, we need to fire an OutDone here
* as we ignore the RXFIFO.
*/
- if (hs_ep->isochronous && hs_ep->interval > 1)
- dwc2_gadget_incr_frame_num(hs_ep);
-
- dwc2_hsotg_handle_outdone(hsotg, idx);
+ if (!hs_ep->isochronous || !(ints & DXEPINT_OUTTKNEPDIS))
+ dwc2_hsotg_handle_outdone(hsotg, idx);
}
}
mask |= DIEPMSK_NAKMSK;
dwc2_writel(hsotg, mask, DIEPMSK);
} else {
+ epctrl |= DXEPCTL_SNAK;
mask = dwc2_readl(hsotg, DOEPMSK);
mask |= DOEPMSK_OUTTKNEPDISMSK;
dwc2_writel(hsotg, mask, DOEPMSK);
hcd->has_tt = 1;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ retval = -EINVAL;
+ goto error1;
+ }
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
{
u32 reg;
int retries = 1000;
- int ret;
-
- usb_phy_init(dwc->usb2_phy);
- usb_phy_init(dwc->usb3_phy);
- ret = phy_init(dwc->usb2_generic_phy);
- if (ret < 0)
- return ret;
-
- ret = phy_init(dwc->usb3_generic_phy);
- if (ret < 0) {
- phy_exit(dwc->usb2_generic_phy);
- return ret;
- }
/*
* We're resetting only the device side because, if we're in host mode,
udelay(1);
} while (--retries);
- phy_exit(dwc->usb3_generic_phy);
- phy_exit(dwc->usb2_generic_phy);
-
return -ETIMEDOUT;
done:
dwc->phys_ready = true;
}
+ usb_phy_init(dwc->usb2_phy);
+ usb_phy_init(dwc->usb3_phy);
+ ret = phy_init(dwc->usb2_generic_phy);
+ if (ret < 0)
+ goto err0a;
+
+ ret = phy_init(dwc->usb3_generic_phy);
+ if (ret < 0) {
+ phy_exit(dwc->usb2_generic_phy);
+ goto err0a;
+ }
+
ret = dwc3_core_soft_reset(dwc);
if (ret)
- goto err0a;
+ goto err1;
if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD &&
!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) {
.bInterval = 4,
};
+static struct usb_ss_ep_comp_descriptor ss_epin_fback_desc_comp = {
+ .bLength = sizeof(ss_epin_fback_desc_comp),
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+ .bMaxBurst = 0,
+ .bmAttributes = 0,
+ .wBytesPerInterval = cpu_to_le16(4),
+};
+
/* Audio Streaming IN Interface - Alt0 */
static struct usb_interface_descriptor std_as_in_if0_desc = {
(struct usb_descriptor_header *)&ss_epout_desc_comp,
(struct usb_descriptor_header *)&as_iso_out_desc,
(struct usb_descriptor_header *)&ss_epin_fback_desc,
+ (struct usb_descriptor_header *)&ss_epin_fback_desc_comp,
(struct usb_descriptor_header *)&std_as_in_if0_desc,
(struct usb_descriptor_header *)&std_as_in_if1_desc,
{
struct usb_ss_ep_comp_descriptor *epout_desc_comp = NULL;
struct usb_ss_ep_comp_descriptor *epin_desc_comp = NULL;
+ struct usb_ss_ep_comp_descriptor *epin_fback_desc_comp = NULL;
struct usb_endpoint_descriptor *epout_desc;
struct usb_endpoint_descriptor *epin_desc;
struct usb_endpoint_descriptor *epin_fback_desc;
epout_desc_comp = &ss_epout_desc_comp;
epin_desc_comp = &ss_epin_desc_comp;
epin_fback_desc = &ss_epin_fback_desc;
+ epin_fback_desc_comp = &ss_epin_fback_desc_comp;
ep_int_desc = &ss_ep_int_desc;
}
headers[i++] = USBDHDR(&as_iso_out_desc);
- if (EPOUT_FBACK_IN_EN(opts))
+ if (EPOUT_FBACK_IN_EN(opts)) {
headers[i++] = USBDHDR(epin_fback_desc);
+ if (epin_fback_desc_comp)
+ headers[i++] = USBDHDR(epin_fback_desc_comp);
+ }
}
if (EPIN_EN(opts)) {
agdev->out_ep_maxpsize = max_t(u16, agdev->out_ep_maxpsize,
le16_to_cpu(ss_epout_desc.wMaxPacketSize));
+ ss_epin_desc_comp.wBytesPerInterval = ss_epin_desc.wMaxPacketSize;
+ ss_epout_desc_comp.wBytesPerInterval = ss_epout_desc.wMaxPacketSize;
+
// HS and SS endpoint addresses are copied from autoconfigured FS descriptors
hs_ep_int_desc.bEndpointAddress = fs_ep_int_desc.bEndpointAddress;
hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
};
static void u_audio_set_fback_frequency(enum usb_device_speed speed,
+ struct usb_ep *out_ep,
unsigned long long freq,
unsigned int pitch,
void *buf)
{
u32 ff = 0;
+ const struct usb_endpoint_descriptor *ep_desc;
/*
* Because the pitch base is 1000000, the final divider here
* byte fromat (that is Q16.16)
*
* ff = (freq << 16) / 8000
+ *
+ * Win10 and OSX UAC2 drivers require number of samples per packet
+ * in order to honor the feedback value.
+ * Linux snd-usb-audio detects the applied bit-shift automatically.
*/
- freq <<= 4;
+ ep_desc = out_ep->desc;
+ freq <<= 4 + (ep_desc->bInterval - 1);
}
ff = DIV_ROUND_CLOSEST_ULL((freq * pitch), 1953125);
pr_debug("%s: iso_complete status(%d) %d/%d\n",
__func__, status, req->actual, req->length);
- u_audio_set_fback_frequency(audio_dev->gadget->speed,
+ u_audio_set_fback_frequency(audio_dev->gadget->speed, audio_dev->out_ep,
params->c_srate, prm->pitch,
req->buf);
* be meauserd at start of playback
*/
prm->pitch = 1000000;
- u_audio_set_fback_frequency(audio_dev->gadget->speed,
+ u_audio_set_fback_frequency(audio_dev->gadget->speed, ep,
params->c_srate, prm->pitch,
req_fback->buf);
do {
tmp = r8a66597_read(r8a66597, INTSTS0) & CTSQ;
udelay(1);
- } while (tmp != CS_IDST || timeout-- > 0);
+ } while (tmp != CS_IDST && timeout-- > 0);
if (tmp == CS_IDST)
r8a66597_bset(r8a66597,
return -ENOMEM;
usb_dev->core = core;
- if (core->dev.of_node) {
+ if (core->dev.of_node)
usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc",
GPIOD_OUT_HIGH);
- if (IS_ERR(usb_dev->gpio_desc))
- return PTR_ERR(usb_dev->gpio_desc);
- }
switch (core->id.id) {
case BCMA_CORE_USB20_HOST:
#include <linux/moduleparam.h>
#include <linux/dma-mapping.h>
#include <linux/debugfs.h>
+#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#ifdef CONFIG_USB_EHCI_SH
#include "ehci-sh.c"
-#define PLATFORM_DRIVER ehci_hcd_sh_driver
#endif
#ifdef CONFIG_PPC_PS3
#include "ehci-ps3.c"
-#define PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver
#endif
#ifdef CONFIG_USB_EHCI_HCD_PPC_OF
#include "ehci-ppc-of.c"
-#define OF_PLATFORM_DRIVER ehci_hcd_ppc_of_driver
#endif
#ifdef CONFIG_XPS_USB_HCD_XILINX
#include "ehci-xilinx-of.c"
-#define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver
#endif
#ifdef CONFIG_SPARC_LEON
#include "ehci-grlib.c"
-#define PLATFORM_DRIVER ehci_grlib_driver
#endif
+static struct platform_driver * const platform_drivers[] = {
+#ifdef CONFIG_USB_EHCI_SH
+ &ehci_hcd_sh_driver,
+#endif
+#ifdef CONFIG_USB_EHCI_HCD_PPC_OF
+ &ehci_hcd_ppc_of_driver,
+#endif
+#ifdef CONFIG_XPS_USB_HCD_XILINX
+ &ehci_hcd_xilinx_of_driver,
+#endif
+#ifdef CONFIG_SPARC_LEON
+ &ehci_grlib_driver,
+#endif
+};
+
static int __init ehci_hcd_init(void)
{
int retval = 0;
ehci_debug_root = debugfs_create_dir("ehci", usb_debug_root);
#endif
-#ifdef PLATFORM_DRIVER
- retval = platform_driver_register(&PLATFORM_DRIVER);
+ retval = platform_register_drivers(platform_drivers, ARRAY_SIZE(platform_drivers));
if (retval < 0)
goto clean0;
-#endif
-
-#ifdef PS3_SYSTEM_BUS_DRIVER
- retval = ps3_ehci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
- if (retval < 0)
- goto clean2;
-#endif
-#ifdef OF_PLATFORM_DRIVER
- retval = platform_driver_register(&OF_PLATFORM_DRIVER);
+#ifdef CONFIG_PPC_PS3
+ retval = ps3_ehci_driver_register(&ps3_ehci_driver);
if (retval < 0)
- goto clean3;
+ goto clean1;
#endif
-#ifdef XILINX_OF_PLATFORM_DRIVER
- retval = platform_driver_register(&XILINX_OF_PLATFORM_DRIVER);
- if (retval < 0)
- goto clean4;
-#endif
- return retval;
+ return 0;
-#ifdef XILINX_OF_PLATFORM_DRIVER
- /* platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER); */
-clean4:
-#endif
-#ifdef OF_PLATFORM_DRIVER
- platform_driver_unregister(&OF_PLATFORM_DRIVER);
-clean3:
-#endif
-#ifdef PS3_SYSTEM_BUS_DRIVER
- ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
-clean2:
+#ifdef CONFIG_PPC_PS3
+clean1:
#endif
-#ifdef PLATFORM_DRIVER
- platform_driver_unregister(&PLATFORM_DRIVER);
+ platform_unregister_drivers(platform_drivers, ARRAY_SIZE(platform_drivers));
clean0:
-#endif
#ifdef CONFIG_DYNAMIC_DEBUG
debugfs_remove(ehci_debug_root);
ehci_debug_root = NULL;
static void __exit ehci_hcd_cleanup(void)
{
-#ifdef XILINX_OF_PLATFORM_DRIVER
- platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
-#endif
-#ifdef OF_PLATFORM_DRIVER
- platform_driver_unregister(&OF_PLATFORM_DRIVER);
-#endif
-#ifdef PLATFORM_DRIVER
- platform_driver_unregister(&PLATFORM_DRIVER);
-#endif
-#ifdef PS3_SYSTEM_BUS_DRIVER
- ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+#ifdef CONFIG_PPC_PS3
+ ps3_ehci_driver_unregister(&ps3_ehci_driver);
#endif
+ platform_unregister_drivers(platform_drivers, ARRAY_SIZE(platform_drivers));
#ifdef CONFIG_DYNAMIC_DEBUG
debugfs_remove(ehci_debug_root);
#endif
if (ret)
xhci_free_command(xhci, command);
}
+ set_bit(HCD_FLAG_DEFER_RH_REGISTER, &hcd->flags);
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"Finished xhci_run for USB2 roothub");
}
if (len > 0) {
/* Write the rest 1 - 3 bytes to FIFO */
+ val = 0;
memcpy(&val, buf, len);
musb_writel(fifo, 0, val);
}
{ USB_DEVICE(0x1FB9, 0x0602) }, /* Lake Shore Model 648 Magnet Power Supply */
{ USB_DEVICE(0x1FB9, 0x0700) }, /* Lake Shore Model 737 VSM Controller */
{ USB_DEVICE(0x1FB9, 0x0701) }, /* Lake Shore Model 776 Hall Matrix */
+ { USB_DEVICE(0x2184, 0x0030) }, /* GW Instek GDM-834x Digital Multimeter */
{ USB_DEVICE(0x2626, 0xEA60) }, /* Aruba Networks 7xxx USB Serial Console */
{ USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
{ USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
speed_t max_speed;
bool use_actual_rate;
bool no_flow_control;
+ bool no_event_mode;
};
enum cp210x_event_state {
static void cp210x_enable_event_mode(struct usb_serial_port *port)
{
+ struct cp210x_serial_private *priv = usb_get_serial_data(port->serial);
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
int ret;
if (port_priv->event_mode)
return;
+ if (priv->no_event_mode)
+ return;
+
port_priv->event_state = ES_DATA;
port_priv->event_mode = true;
priv->use_actual_rate = use_actual_rate;
}
+static void cp2102_determine_quirks(struct usb_serial *serial)
+{
+ struct cp210x_serial_private *priv = usb_get_serial_data(serial);
+ u8 *buf;
+ int ret;
+
+ buf = kmalloc(2, GFP_KERNEL);
+ if (!buf)
+ return;
+ /*
+ * Some (possibly counterfeit) CP2102 do not support event-insertion
+ * mode and respond differently to malformed vendor requests.
+ * Specifically, they return one instead of two bytes when sent a
+ * two-byte part-number request.
+ */
+ ret = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ CP210X_VENDOR_SPECIFIC, REQTYPE_DEVICE_TO_HOST,
+ CP210X_GET_PARTNUM, 0, buf, 2, USB_CTRL_GET_TIMEOUT);
+ if (ret == 1) {
+ dev_dbg(&serial->interface->dev,
+ "device does not support event-insertion mode\n");
+ priv->no_event_mode = true;
+ }
+
+ kfree(buf);
+}
+
static int cp210x_get_fw_version(struct usb_serial *serial, u16 value)
{
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
return;
}
+ dev_dbg(&serial->interface->dev, "partnum = 0x%02x\n", priv->partnum);
+
switch (priv->partnum) {
+ case CP210X_PARTNUM_CP2102:
+ cp2102_determine_quirks(serial);
+ break;
case CP210X_PARTNUM_CP2105:
case CP210X_PARTNUM_CP2108:
cp210x_get_fw_version(serial, CP210X_GET_FW_VER);
#define BANDB_DEVICE_ID_USOPTL4_2P 0xBC02
#define BANDB_DEVICE_ID_USOPTL4_4 0xAC44
#define BANDB_DEVICE_ID_USOPTL4_4P 0xBC03
-#define BANDB_DEVICE_ID_USOPTL2_4 0xAC24
/* Interrupt Routine Defines */
{ USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P) },
{ USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4) },
{ USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P) },
- { USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4) },
{} /* terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
.driver_info = NCTRL(0) | RSVD(1) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1056, 0xff), /* Telit FD980 */
.driver_info = NCTRL(2) | RSVD(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1060, 0xff), /* Telit LN920 (rmnet) */
+ .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1061, 0xff), /* Telit LN920 (MBIM) */
+ .driver_info = NCTRL(0) | RSVD(1) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1062, 0xff), /* Telit LN920 (RNDIS) */
+ .driver_info = NCTRL(2) | RSVD(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1063, 0xff), /* Telit LN920 (ECM) */
+ .driver_info = NCTRL(0) | RSVD(1) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
.driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0060, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0070, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0094, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0130, 0xff, 0xff, 0xff),
.driver_info = RSVD(1) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0133, 0xff, 0xff, 0xff),
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(0x0489, 0xe0b5), /* Foxconn T77W968 ESIM */
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
+ { USB_DEVICE_INTERFACE_CLASS(0x0489, 0xe0db, 0xff), /* Foxconn T99W265 MBIM */
+ .driver_info = RSVD(3) },
{ USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 (IOT version) */
.driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
{ USB_DEVICE(0x2cb7, 0x0104), /* Fibocom NL678 series */
USB_SC_UFI, USB_PR_DEVICE, NULL, US_FL_FIX_INQUIRY | US_FL_SINGLE_LUN),
/*
- * Reported by Ondrej Zary <linux@rainbow-software.org>
+ * Reported by Ondrej Zary <linux@zary.sk>
* The device reports one sector more and breaks when that sector is accessed
+ * Firmwares older than 2.6c (the latest one and the only that claims Linux
+ * support) have also broken tag handling
*/
+UNUSUAL_DEV( 0x04ce, 0x0002, 0x0000, 0x026b,
+ "ScanLogic",
+ "SL11R-IDE",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_FIX_CAPACITY | US_FL_BULK_IGNORE_TAG),
UNUSUAL_DEV( 0x04ce, 0x0002, 0x026c, 0x026c,
"ScanLogic",
"SL11R-IDE",
"LaCie",
"Rugged USB3-FW",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
- US_FL_IGNORE_UAS),
+ US_FL_NO_REPORT_OPCODES | US_FL_NO_SAME),
/*
* Apricorn USB3 dongle sometimes returns "USBSUSBSUSBS" in response to SCSI
struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
struct mlx5_vdpa_virtqueue *mvq;
+ if (!mvdev->actual_features)
+ return;
+
if (!is_index_valid(mvdev, idx))
return;
for (i = 0; i < ndev->mvdev.max_vqs; i++)
ndev->vqs[i].ready = false;
+
+ ndev->mvdev.cvq.ready = false;
}
static void mlx5_vdpa_set_status(struct vdpa_device *vdev, u8 status)
static int vduse_vdpa_reset(struct vdpa_device *vdpa)
{
struct vduse_dev *dev = vdpa_to_vduse(vdpa);
-
- if (vduse_dev_set_status(dev, 0))
- return -EIO;
+ int ret = vduse_dev_set_status(dev, 0);
vduse_dev_reset(dev);
- return 0;
+ return ret;
}
static u32 vduse_vdpa_get_generation(struct vdpa_device *vdpa)
vduse_irq_wq = alloc_workqueue("vduse-irq",
WQ_HIGHPRI | WQ_SYSFS | WQ_UNBOUND, 0);
- if (!vduse_irq_wq)
+ if (!vduse_irq_wq) {
+ ret = -ENOMEM;
goto err_wq;
+ }
ret = vduse_domain_init();
if (ret)
.num = nvq->batched_xdp,
.ptr = nvq->xdp,
};
- int err;
+ int i, err;
if (nvq->batched_xdp == 0)
goto signal_used;
err = sock->ops->sendmsg(sock, msghdr, 0);
if (unlikely(err < 0)) {
vq_err(&nvq->vq, "Fail to batch sending packets\n");
+
+ /* free pages owned by XDP; since this is an unlikely error path,
+ * keep it simple and avoid more complex bulk update for the
+ * used pages
+ */
+ for (i = 0; i < nvq->batched_xdp; ++i)
+ put_page(virt_to_head_page(nvq->xdp[i].data));
+ nvq->batched_xdp = 0;
+ nvq->done_idx = 0;
return;
}
u64 offset, map_size, map_iova = iova;
struct vdpa_map_file *map_file;
struct vm_area_struct *vma;
- int ret;
+ int ret = 0;
mmap_read_lock(dev->mm);
config FB_TGA
tristate "TGA/SFB+ framebuffer support"
- depends on FB && (ALPHA || TC)
+ depends on FB
+ depends on PCI || TC
+ depends on ALPHA || TC
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
ret = snprintf(compat, sizeof(compat), "virtio,device%x", dev->id.device);
BUG_ON(ret >= sizeof(compat));
+ /*
+ * On powerpc/pseries virtio devices are PCI devices so PCI
+ * vendor/device ids play the role of the "compatible" property.
+ * Simply don't init of_node in this case.
+ */
if (!of_device_is_compatible(np, compat)) {
- ret = -EINVAL;
+ ret = 0;
goto out;
}
config SIBYTE_WDOG
tristate "Sibyte SoC hardware watchdog"
- depends on CPU_SB1 || (MIPS && COMPILE_TEST)
+ depends on CPU_SB1
help
Watchdog driver for the built in watchdog hardware in Sibyte
SoC processors. There are apparently two watchdog timers
config SWIOTLB_XEN
def_bool y
+ depends on XEN_PV || ARM || ARM64
select DMA_OPS
select SWIOTLB
implements them.
config XEN_PVCALLS_BACKEND
- bool "XEN PV Calls backend driver"
+ tristate "XEN PV Calls backend driver"
depends on INET && XEN && XEN_BACKEND
help
Experimental backend for the Xen PV Calls protocol
#include <linux/sched.h>
#include <linux/cred.h>
#include <linux/errno.h>
+#include <linux/freezer.h>
+#include <linux/kthread.h>
#include <linux/mm.h>
#include <linux/memblock.h>
#include <linux/pagemap.h>
#define EXTENT_ORDER (fls(XEN_PFN_PER_PAGE) - 1)
/*
- * balloon_process() state:
+ * balloon_thread() state:
*
* BP_DONE: done or nothing to do,
* BP_WAIT: wait to be rescheduled,
BP_ECANCELED
};
+/* Main waiting point for xen-balloon thread. */
+static DECLARE_WAIT_QUEUE_HEAD(balloon_thread_wq);
static DEFINE_MUTEX(balloon_mutex);
static LIST_HEAD(ballooned_pages);
static DECLARE_WAIT_QUEUE_HEAD(balloon_wq);
-/* Main work function, always executed in process context. */
-static void balloon_process(struct work_struct *work);
-static DECLARE_DELAYED_WORK(balloon_worker, balloon_process);
-
/* When ballooning out (allocating memory to return to Xen) we don't really
want the kernel to try too hard since that can trigger the oom killer. */
#define GFP_BALLOON \
static int xen_memory_notifier(struct notifier_block *nb, unsigned long val, void *v)
{
if (val == MEM_ONLINE)
- schedule_delayed_work(&balloon_worker, 0);
+ wake_up(&balloon_thread_wq);
return NOTIFY_OK;
}
}
/*
- * As this is a work item it is guaranteed to run as a single instance only.
+ * Stop waiting if either state is not BP_EAGAIN and ballooning action is
+ * needed, or if the credit has changed while state is BP_EAGAIN.
+ */
+static bool balloon_thread_cond(enum bp_state state, long credit)
+{
+ if (state != BP_EAGAIN)
+ credit = 0;
+
+ return current_credit() != credit || kthread_should_stop();
+}
+
+/*
+ * As this is a kthread it is guaranteed to run as a single instance only.
* We may of course race updates of the target counts (which are protected
* by the balloon lock), or with changes to the Xen hard limit, but we will
* recover from these in time.
*/
-static void balloon_process(struct work_struct *work)
+static int balloon_thread(void *unused)
{
enum bp_state state = BP_DONE;
long credit;
+ unsigned long timeout;
+
+ set_freezable();
+ for (;;) {
+ if (state == BP_EAGAIN)
+ timeout = balloon_stats.schedule_delay * HZ;
+ else
+ timeout = 3600 * HZ;
+ credit = current_credit();
+ wait_event_freezable_timeout(balloon_thread_wq,
+ balloon_thread_cond(state, credit), timeout);
+
+ if (kthread_should_stop())
+ return 0;
- do {
mutex_lock(&balloon_mutex);
credit = current_credit();
mutex_unlock(&balloon_mutex);
cond_resched();
-
- } while (credit && state == BP_DONE);
-
- /* Schedule more work if there is some still to be done. */
- if (state == BP_EAGAIN)
- schedule_delayed_work(&balloon_worker, balloon_stats.schedule_delay * HZ);
+ }
}
/* Resets the Xen limit, sets new target, and kicks off processing. */
{
/* No need for lock. Not read-modify-write updates. */
balloon_stats.target_pages = target;
- schedule_delayed_work(&balloon_worker, 0);
+ wake_up(&balloon_thread_wq);
}
EXPORT_SYMBOL_GPL(balloon_set_new_target);
/* The balloon may be too large now. Shrink it if needed. */
if (current_credit())
- schedule_delayed_work(&balloon_worker, 0);
+ wake_up(&balloon_thread_wq);
mutex_unlock(&balloon_mutex);
}
static int __init balloon_init(void)
{
+ struct task_struct *task;
+
if (!xen_domain())
return -ENODEV;
}
#endif
+ task = kthread_run(balloon_thread, NULL, "xen-balloon");
+ if (IS_ERR(task)) {
+ pr_err("xen-balloon thread could not be started, ballooning will not work!\n");
+ return PTR_ERR(task);
+ }
+
/* Init the xen-balloon driver. */
xen_balloon_init();
map->unmap_ops[offset+i].handle,
map->unmap_ops[offset+i].status);
map->unmap_ops[offset+i].handle = INVALID_GRANT_HANDLE;
+ if (use_ptemod) {
+ if (map->kunmap_ops[offset+i].status)
+ err = -EINVAL;
+ pr_debug("kunmap handle=%u st=%d\n",
+ map->kunmap_ops[offset+i].handle,
+ map->kunmap_ops[offset+i].status);
+ map->kunmap_ops[offset+i].handle = INVALID_GRANT_HANDLE;
+ }
}
return err;
}
static int xen_swiotlb_fixup(void *buf, unsigned long nslabs)
{
- int i, rc;
- int dma_bits;
+ int rc;
+ unsigned int order = get_order(IO_TLB_SEGSIZE << IO_TLB_SHIFT);
+ unsigned int i, dma_bits = order + PAGE_SHIFT;
dma_addr_t dma_handle;
phys_addr_t p = virt_to_phys(buf);
- dma_bits = get_order(IO_TLB_SEGSIZE << IO_TLB_SHIFT) + PAGE_SHIFT;
+ BUILD_BUG_ON(IO_TLB_SEGSIZE & (IO_TLB_SEGSIZE - 1));
+ BUG_ON(nslabs % IO_TLB_SEGSIZE);
i = 0;
do {
- int slabs = min(nslabs - i, (unsigned long)IO_TLB_SEGSIZE);
-
do {
rc = xen_create_contiguous_region(
- p + (i << IO_TLB_SHIFT),
- get_order(slabs << IO_TLB_SHIFT),
+ p + (i << IO_TLB_SHIFT), order,
dma_bits, &dma_handle);
} while (rc && dma_bits++ < MAX_DMA_BITS);
if (rc)
return rc;
- i += slabs;
+ i += IO_TLB_SEGSIZE;
} while (i < nslabs);
return 0;
}
return "";
}
-#define DEFAULT_NSLABS ALIGN(SZ_64M >> IO_TLB_SHIFT, IO_TLB_SEGSIZE)
-
-int __ref xen_swiotlb_init(void)
+int xen_swiotlb_init(void)
{
enum xen_swiotlb_err m_ret = XEN_SWIOTLB_UNKNOWN;
unsigned long bytes = swiotlb_size_or_default();
order--;
}
if (!start)
- goto error;
+ goto exit;
if (order != get_order(bytes)) {
pr_warn("Warning: only able to allocate %ld MB for software IO TLB\n",
(PAGE_SIZE << order) >> 20);
swiotlb_set_max_segment(PAGE_SIZE);
return 0;
error:
- if (repeat--) {
+ if (nslabs > 1024 && repeat--) {
/* Min is 2MB */
- nslabs = max(1024UL, (nslabs >> 1));
- pr_info("Lowering to %luMB\n",
- (nslabs << IO_TLB_SHIFT) >> 20);
+ nslabs = max(1024UL, ALIGN(nslabs >> 1, IO_TLB_SEGSIZE));
+ bytes = nslabs << IO_TLB_SHIFT;
+ pr_info("Lowering to %luMB\n", bytes >> 20);
goto retry;
}
+exit:
pr_err("%s (rc:%d)\n", xen_swiotlb_error(m_ret), rc);
- free_pages((unsigned long)start, order);
return rc;
}
/*
* Get IO TLB memory from any location.
*/
- start = memblock_alloc(PAGE_ALIGN(bytes), PAGE_SIZE);
+ start = memblock_alloc(PAGE_ALIGN(bytes),
+ IO_TLB_SEGSIZE << IO_TLB_SHIFT);
if (!start)
- panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
- __func__, PAGE_ALIGN(bytes), PAGE_SIZE);
+ panic("%s: Failed to allocate %lu bytes\n",
+ __func__, PAGE_ALIGN(bytes));
/*
* And replace that memory with pages under 4GB.
rc = xen_swiotlb_fixup(start, nslabs);
if (rc) {
memblock_free(__pa(start), PAGE_ALIGN(bytes));
- if (repeat--) {
+ if (nslabs > 1024 && repeat--) {
/* Min is 2MB */
- nslabs = max(1024UL, (nslabs >> 1));
+ nslabs = max(1024UL, ALIGN(nslabs >> 1, IO_TLB_SEGSIZE));
bytes = nslabs << IO_TLB_SHIFT;
pr_info("Lowering to %luMB\n", bytes >> 20);
goto retry;
panic("%s (rc:%d)", xen_swiotlb_error(XEN_SWIOTLB_EFIXUP), rc);
}
- if (swiotlb_init_with_tbl(start, nslabs, false))
+ if (swiotlb_init_with_tbl(start, nslabs, true))
panic("Cannot allocate SWIOTLB buffer");
swiotlb_set_max_segment(PAGE_SIZE);
}
#include "internal.h"
/*
+ * Handle invalidation of an mmap'd file. We invalidate all the PTEs referring
+ * to the pages in this file's pagecache, forcing the kernel to go through
+ * ->fault() or ->page_mkwrite() - at which point we can handle invalidation
+ * more fully.
+ */
+void afs_invalidate_mmap_work(struct work_struct *work)
+{
+ struct afs_vnode *vnode = container_of(work, struct afs_vnode, cb_work);
+
+ unmap_mapping_pages(vnode->vfs_inode.i_mapping, 0, 0, false);
+}
+
+void afs_server_init_callback_work(struct work_struct *work)
+{
+ struct afs_server *server = container_of(work, struct afs_server, initcb_work);
+ struct afs_vnode *vnode;
+ struct afs_cell *cell = server->cell;
+
+ down_read(&cell->fs_open_mmaps_lock);
+
+ list_for_each_entry(vnode, &cell->fs_open_mmaps, cb_mmap_link) {
+ if (vnode->cb_server == server) {
+ clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
+ queue_work(system_unbound_wq, &vnode->cb_work);
+ }
+ }
+
+ up_read(&cell->fs_open_mmaps_lock);
+}
+
+/*
* Allow the fileserver to request callback state (re-)initialisation.
* Unfortunately, UUIDs are not guaranteed unique.
*/
rcu_read_lock();
do {
server->cb_s_break++;
- server = rcu_dereference(server->uuid_next);
- } while (0);
+ atomic_inc(&server->cell->fs_s_break);
+ if (!list_empty(&server->cell->fs_open_mmaps))
+ queue_work(system_unbound_wq, &server->initcb_work);
+
+ } while ((server = rcu_dereference(server->uuid_next)));
rcu_read_unlock();
}
clear_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags);
if (test_and_clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags)) {
vnode->cb_break++;
+ vnode->cb_v_break = vnode->volume->cb_v_break;
afs_clear_permits(vnode);
if (vnode->lock_state == AFS_VNODE_LOCK_WAITING_FOR_CB)
afs_lock_may_be_available(vnode);
+ if (reason != afs_cb_break_for_deleted &&
+ vnode->status.type == AFS_FTYPE_FILE &&
+ atomic_read(&vnode->cb_nr_mmap))
+ queue_work(system_unbound_wq, &vnode->cb_work);
+
trace_afs_cb_break(&vnode->fid, vnode->cb_break, reason, true);
} else {
trace_afs_cb_break(&vnode->fid, vnode->cb_break, reason, false);
seqlock_init(&cell->volume_lock);
cell->fs_servers = RB_ROOT;
seqlock_init(&cell->fs_lock);
+ INIT_LIST_HEAD(&cell->fs_open_mmaps);
+ init_rwsem(&cell->fs_open_mmaps_lock);
rwlock_init(&cell->vl_servers_lock);
cell->flags = (1 << AFS_CELL_FL_CHECK_ALIAS);
*/
static int afs_d_revalidate_rcu(struct dentry *dentry)
{
- struct afs_vnode *dvnode, *vnode;
+ struct afs_vnode *dvnode;
struct dentry *parent;
- struct inode *dir, *inode;
+ struct inode *dir;
long dir_version, de_version;
_enter("%p", dentry);
return -ECHILD;
}
- /* Check to see if the vnode referred to by the dentry still
- * has a callback.
- */
- if (d_really_is_positive(dentry)) {
- inode = d_inode_rcu(dentry);
- if (inode) {
- vnode = AFS_FS_I(inode);
- if (!afs_check_validity(vnode))
- return -ECHILD;
- }
- }
-
return 1; /* Still valid */
}
if (IS_ERR(key))
key = NULL;
- if (d_really_is_positive(dentry)) {
- inode = d_inode(dentry);
- if (inode) {
- vnode = AFS_FS_I(inode);
- afs_validate(vnode, key);
- if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
- goto out_bad;
- }
- }
-
- /* lock down the parent dentry so we can peer at it */
+ /* Hold the parent dentry so we can peer at it */
parent = dget_parent(dentry);
dir = AFS_FS_I(d_inode(parent));
if (test_bit(AFS_VNODE_DELETED, &dir->flags)) {
_debug("%pd: parent dir deleted", dentry);
- goto out_bad_parent;
+ goto not_found;
}
/* We only need to invalidate a dentry if the server's copy changed
case 0:
/* the filename maps to something */
if (d_really_is_negative(dentry))
- goto out_bad_parent;
+ goto not_found;
inode = d_inode(dentry);
if (is_bad_inode(inode)) {
printk("kAFS: afs_d_revalidate: %pd2 has bad inode\n",
dentry);
- goto out_bad_parent;
+ goto not_found;
}
vnode = AFS_FS_I(inode);
dentry, fid.unique,
vnode->fid.unique,
vnode->vfs_inode.i_generation);
- write_seqlock(&vnode->cb_lock);
- set_bit(AFS_VNODE_DELETED, &vnode->flags);
- write_sequnlock(&vnode->cb_lock);
goto not_found;
}
goto out_valid;
default:
_debug("failed to iterate dir %pd: %d",
parent, ret);
- goto out_bad_parent;
+ goto not_found;
}
out_valid:
_leave(" = 1 [valid]");
return 1;
- /* the dirent, if it exists, now points to a different vnode */
not_found:
- spin_lock(&dentry->d_lock);
- dentry->d_flags |= DCACHE_NFSFS_RENAMED;
- spin_unlock(&dentry->d_lock);
-
-out_bad_parent:
_debug("dropping dentry %pd2", dentry);
dput(parent);
-out_bad:
key_put(key);
_leave(" = 0 [bad]");
goto error;
}
+ ret = afs_validate(vnode, op->key);
+ if (ret < 0)
+ goto error_op;
+
afs_op_set_vnode(op, 0, dvnode);
afs_op_set_vnode(op, 1, vnode);
op->file[0].dv_delta = 1;
op->create.reason = afs_edit_dir_for_link;
return afs_do_sync_operation(op);
+error_op:
+ afs_put_operation(op);
error:
d_drop(dentry);
_leave(" = %d", ret);
if (IS_ERR(op))
return PTR_ERR(op);
+ ret = afs_validate(vnode, op->key);
+ op->error = ret;
+ if (ret < 0)
+ goto error;
+
afs_op_set_vnode(op, 0, orig_dvnode);
afs_op_set_vnode(op, 1, new_dvnode); /* May be same as orig_dvnode */
op->file[0].dv_delta = 1;
if (b == nr_blocks) {
_debug("init %u", b);
afs_edit_init_block(meta, block, b);
- i_size_write(&vnode->vfs_inode, (b + 1) * AFS_DIR_BLOCK_SIZE);
+ afs_set_i_size(vnode, (b + 1) * AFS_DIR_BLOCK_SIZE);
}
/* Only lower dir pages have a counter in the header. */
new_directory:
afs_edit_init_block(meta, meta, 0);
i_size = AFS_DIR_BLOCK_SIZE;
- i_size_write(&vnode->vfs_inode, i_size);
+ afs_set_i_size(vnode, i_size);
slot = AFS_DIR_RESV_BLOCKS0;
page = page0;
block = meta;
static int afs_releasepage(struct page *page, gfp_t gfp_flags);
static void afs_readahead(struct readahead_control *ractl);
+static ssize_t afs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter);
+static void afs_vm_open(struct vm_area_struct *area);
+static void afs_vm_close(struct vm_area_struct *area);
+static vm_fault_t afs_vm_map_pages(struct vm_fault *vmf, pgoff_t start_pgoff, pgoff_t end_pgoff);
const struct file_operations afs_file_operations = {
.open = afs_open,
.release = afs_release,
.llseek = generic_file_llseek,
- .read_iter = generic_file_read_iter,
+ .read_iter = afs_file_read_iter,
.write_iter = afs_file_write,
.mmap = afs_file_mmap,
.splice_read = generic_file_splice_read,
};
static const struct vm_operations_struct afs_vm_ops = {
+ .open = afs_vm_open,
+ .close = afs_vm_close,
.fault = filemap_fault,
- .map_pages = filemap_map_pages,
+ .map_pages = afs_vm_map_pages,
.page_mkwrite = afs_page_mkwrite,
};
fsreq->subreq = subreq;
fsreq->pos = subreq->start + subreq->transferred;
fsreq->len = subreq->len - subreq->transferred;
- fsreq->key = subreq->rreq->netfs_priv;
+ fsreq->key = key_get(subreq->rreq->netfs_priv);
fsreq->vnode = vnode;
fsreq->iter = &fsreq->def_iter;
fsreq->pos, fsreq->len);
afs_fetch_data(fsreq->vnode, fsreq);
+ afs_put_read(fsreq);
}
static int afs_symlink_readpage(struct page *page)
return 1;
}
+static void afs_add_open_mmap(struct afs_vnode *vnode)
+{
+ if (atomic_inc_return(&vnode->cb_nr_mmap) == 1) {
+ down_write(&vnode->volume->cell->fs_open_mmaps_lock);
+
+ list_add_tail(&vnode->cb_mmap_link,
+ &vnode->volume->cell->fs_open_mmaps);
+
+ up_write(&vnode->volume->cell->fs_open_mmaps_lock);
+ }
+}
+
+static void afs_drop_open_mmap(struct afs_vnode *vnode)
+{
+ if (!atomic_dec_and_test(&vnode->cb_nr_mmap))
+ return;
+
+ down_write(&vnode->volume->cell->fs_open_mmaps_lock);
+
+ if (atomic_read(&vnode->cb_nr_mmap) == 0)
+ list_del_init(&vnode->cb_mmap_link);
+
+ up_write(&vnode->volume->cell->fs_open_mmaps_lock);
+ flush_work(&vnode->cb_work);
+}
+
/*
* Handle setting up a memory mapping on an AFS file.
*/
static int afs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
+ struct afs_vnode *vnode = AFS_FS_I(file_inode(file));
int ret;
+ afs_add_open_mmap(vnode);
+
ret = generic_file_mmap(file, vma);
if (ret == 0)
vma->vm_ops = &afs_vm_ops;
+ else
+ afs_drop_open_mmap(vnode);
return ret;
}
+
+static void afs_vm_open(struct vm_area_struct *vma)
+{
+ afs_add_open_mmap(AFS_FS_I(file_inode(vma->vm_file)));
+}
+
+static void afs_vm_close(struct vm_area_struct *vma)
+{
+ afs_drop_open_mmap(AFS_FS_I(file_inode(vma->vm_file)));
+}
+
+static vm_fault_t afs_vm_map_pages(struct vm_fault *vmf, pgoff_t start_pgoff, pgoff_t end_pgoff)
+{
+ struct afs_vnode *vnode = AFS_FS_I(file_inode(vmf->vma->vm_file));
+ struct afs_file *af = vmf->vma->vm_file->private_data;
+
+ switch (afs_validate(vnode, af->key)) {
+ case 0:
+ return filemap_map_pages(vmf, start_pgoff, end_pgoff);
+ case -ENOMEM:
+ return VM_FAULT_OOM;
+ case -EINTR:
+ case -ERESTARTSYS:
+ return VM_FAULT_RETRY;
+ case -ESTALE:
+ default:
+ return VM_FAULT_SIGBUS;
+ }
+}
+
+static ssize_t afs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+{
+ struct afs_vnode *vnode = AFS_FS_I(file_inode(iocb->ki_filp));
+ struct afs_file *af = iocb->ki_filp->private_data;
+ int ret;
+
+ ret = afs_validate(vnode, af->key);
+ if (ret < 0)
+ return ret;
+
+ return generic_file_read_iter(iocb, iter);
+}
#include <linux/slab.h>
#include "afs_fs.h"
#include "internal.h"
+#include "protocol_afs.h"
#include "protocol_yfs.h"
static unsigned int afs_fs_probe_fast_poll_interval = 30 * HZ;
struct afs_addr_list *alist = call->alist;
struct afs_server *server = call->server;
unsigned int index = call->addr_ix;
- unsigned int rtt_us = 0;
+ unsigned int rtt_us = 0, cap0;
int ret = call->error;
_enter("%pU,%u", &server->uuid, index);
clear_bit(AFS_SERVER_FL_IS_YFS, &server->flags);
alist->addrs[index].srx_service = call->service_id;
}
+ cap0 = ntohl(call->tmp);
+ if (cap0 & AFS3_VICED_CAPABILITY_64BITFILES)
+ set_bit(AFS_SERVER_FL_HAS_FS64, &server->flags);
+ else
+ clear_bit(AFS_SERVER_FL_HAS_FS64, &server->flags);
}
if (rxrpc_kernel_get_srtt(call->net->socket, call->rxcall, &rtt_us) &&
struct afs_read *req = op->fetch.req;
__be32 *bp;
- if (upper_32_bits(req->pos) ||
- upper_32_bits(req->len) ||
- upper_32_bits(req->pos + req->len))
+ if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags))
return afs_fs_fetch_data64(op);
_enter("");
(unsigned long long)op->store.pos,
(unsigned long long)op->store.i_size);
- if (upper_32_bits(op->store.pos) ||
- upper_32_bits(op->store.size) ||
- upper_32_bits(op->store.i_size))
+ if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags))
return afs_fs_store_data64(op);
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData,
key_serial(op->key), vp->fid.vid, vp->fid.vnode);
ASSERT(attr->ia_valid & ATTR_SIZE);
- if (upper_32_bits(attr->ia_size))
+ if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags))
return afs_fs_setattr_size64(op);
call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData_as_Status,
return ret;
count = ntohl(call->tmp);
-
call->count = count;
call->count2 = count;
- afs_extract_discard(call, count * sizeof(__be32));
+ if (count == 0) {
+ call->unmarshall = 4;
+ call->tmp = 0;
+ break;
+ }
+
+ /* Extract the first word of the capabilities to call->tmp */
+ afs_extract_to_tmp(call);
call->unmarshall++;
fallthrough;
- /* Extract capabilities words */
case 2:
ret = afs_extract_data(call, false);
if (ret < 0)
return ret;
- /* TODO: Examine capabilities */
+ afs_extract_discard(call, (count - 1) * sizeof(__be32));
+ call->unmarshall++;
+ fallthrough;
+
+ /* Extract remaining capabilities words */
+ case 3:
+ ret = afs_extract_data(call, false);
+ if (ret < 0)
+ return ret;
call->unmarshall++;
break;
}
/*
- * Set the file size and block count. Estimate the number of 512 bytes blocks
- * used, rounded up to nearest 1K for consistency with other AFS clients.
- */
-static void afs_set_i_size(struct afs_vnode *vnode, u64 size)
-{
- i_size_write(&vnode->vfs_inode, size);
- vnode->vfs_inode.i_blocks = ((size + 1023) >> 10) << 1;
-}
-
-/*
* Initialise an inode from the vnode status.
*/
static int afs_inode_init_from_status(struct afs_operation *op,
}
/*
- * Get the server reinit counter for a vnode's current server.
+ * Check to see if we have a server currently serving this volume and that it
+ * hasn't been reinitialised or dropped from the list.
*/
-static bool afs_get_s_break_rcu(struct afs_vnode *vnode, unsigned int *_s_break)
+static bool afs_check_server_good(struct afs_vnode *vnode)
{
- struct afs_server_list *slist = rcu_dereference(vnode->volume->servers);
+ struct afs_server_list *slist;
struct afs_server *server;
+ bool good;
int i;
+ if (vnode->cb_fs_s_break == atomic_read(&vnode->volume->cell->fs_s_break))
+ return true;
+
+ rcu_read_lock();
+
+ slist = rcu_dereference(vnode->volume->servers);
for (i = 0; i < slist->nr_servers; i++) {
server = slist->servers[i].server;
if (server == vnode->cb_server) {
- *_s_break = READ_ONCE(server->cb_s_break);
- return true;
+ good = (vnode->cb_s_break == server->cb_s_break);
+ rcu_read_unlock();
+ return good;
}
}
+ rcu_read_unlock();
return false;
}
*/
bool afs_check_validity(struct afs_vnode *vnode)
{
- struct afs_volume *volume = vnode->volume;
enum afs_cb_break_reason need_clear = afs_cb_break_no_break;
time64_t now = ktime_get_real_seconds();
- bool valid;
- unsigned int cb_break, cb_s_break, cb_v_break;
+ unsigned int cb_break;
int seq = 0;
do {
read_seqbegin_or_lock(&vnode->cb_lock, &seq);
- cb_v_break = READ_ONCE(volume->cb_v_break);
cb_break = vnode->cb_break;
- if (test_bit(AFS_VNODE_CB_PROMISED, &vnode->flags) &&
- afs_get_s_break_rcu(vnode, &cb_s_break)) {
- if (vnode->cb_s_break != cb_s_break ||
- vnode->cb_v_break != cb_v_break) {
- vnode->cb_s_break = cb_s_break;
- vnode->cb_v_break = cb_v_break;
- need_clear = afs_cb_break_for_vsbreak;
- valid = false;
- } else if (test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags)) {
+ if (test_bit(AFS_VNODE_CB_PROMISED, &vnode->flags)) {
+ if (vnode->cb_v_break != vnode->volume->cb_v_break)
+ need_clear = afs_cb_break_for_v_break;
+ else if (!afs_check_server_good(vnode))
+ need_clear = afs_cb_break_for_s_reinit;
+ else if (test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags))
need_clear = afs_cb_break_for_zap;
- valid = false;
- } else if (vnode->cb_expires_at - 10 <= now) {
+ else if (vnode->cb_expires_at - 10 <= now)
need_clear = afs_cb_break_for_lapsed;
- valid = false;
- } else {
- valid = true;
- }
} else if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
- valid = true;
+ ;
} else {
- vnode->cb_v_break = cb_v_break;
- valid = false;
+ need_clear = afs_cb_break_no_promise;
}
} while (need_seqretry(&vnode->cb_lock, seq));
done_seqretry(&vnode->cb_lock, seq);
- if (need_clear != afs_cb_break_no_break) {
- write_seqlock(&vnode->cb_lock);
- if (cb_break == vnode->cb_break)
- __afs_break_callback(vnode, need_clear);
- else
- trace_afs_cb_miss(&vnode->fid, need_clear);
- write_sequnlock(&vnode->cb_lock);
- valid = false;
- }
+ if (need_clear == afs_cb_break_no_break)
+ return true;
- return valid;
+ write_seqlock(&vnode->cb_lock);
+ if (need_clear == afs_cb_break_no_promise)
+ vnode->cb_v_break = vnode->volume->cb_v_break;
+ else if (cb_break == vnode->cb_break)
+ __afs_break_callback(vnode, need_clear);
+ else
+ trace_afs_cb_miss(&vnode->fid, need_clear);
+ write_sequnlock(&vnode->cb_lock);
+ return false;
}
/*
*/
int afs_validate(struct afs_vnode *vnode, struct key *key)
{
- bool valid;
int ret;
_enter("{v={%llx:%llu} fl=%lx},%x",
vnode->fid.vid, vnode->fid.vnode, vnode->flags,
key_serial(key));
- rcu_read_lock();
- valid = afs_check_validity(vnode);
- rcu_read_unlock();
-
- if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
- clear_nlink(&vnode->vfs_inode);
+ if (unlikely(test_bit(AFS_VNODE_DELETED, &vnode->flags))) {
+ if (vnode->vfs_inode.i_nlink)
+ clear_nlink(&vnode->vfs_inode);
+ goto valid;
+ }
- if (valid)
+ if (test_bit(AFS_VNODE_CB_PROMISED, &vnode->flags) &&
+ afs_check_validity(vnode))
goto valid;
down_write(&vnode->validate_lock);
/* Active fileserver interaction state. */
struct rb_root fs_servers; /* afs_server (by server UUID) */
seqlock_t fs_lock; /* For fs_servers */
+ struct rw_semaphore fs_open_mmaps_lock;
+ struct list_head fs_open_mmaps; /* List of vnodes that are mmapped */
+ atomic_t fs_s_break; /* Counter of CB.InitCallBackState messages */
/* VL server list. */
rwlock_t vl_servers_lock; /* Lock on vl_servers */
struct hlist_node addr4_link; /* Link in net->fs_addresses4 */
struct hlist_node addr6_link; /* Link in net->fs_addresses6 */
struct hlist_node proc_link; /* Link in net->fs_proc */
+ struct work_struct initcb_work; /* Work for CB.InitCallBackState* */
struct afs_server *gc_next; /* Next server in manager's list */
time64_t unuse_time; /* Time at which last unused */
unsigned long flags;
#define AFS_SERVER_FL_IS_YFS 16 /* Server is YFS not AFS */
#define AFS_SERVER_FL_NO_IBULK 17 /* Fileserver doesn't support FS.InlineBulkStatus */
#define AFS_SERVER_FL_NO_RM2 18 /* Fileserver doesn't support YFS.RemoveFile2 */
+#define AFS_SERVER_FL_HAS_FS64 19 /* Fileserver supports FS.{Fetch,Store}Data64 */
atomic_t ref; /* Object refcount */
atomic_t active; /* Active user count */
u32 addr_version; /* Address list version */
afs_lock_type_t lock_type : 8;
/* outstanding callback notification on this file */
+ struct work_struct cb_work; /* Work for mmap'd files */
+ struct list_head cb_mmap_link; /* Link in cell->fs_open_mmaps */
void *cb_server; /* Server with callback/filelock */
+ atomic_t cb_nr_mmap; /* Number of mmaps */
+ unsigned int cb_fs_s_break; /* Mass server break counter (cell->fs_s_break) */
unsigned int cb_s_break; /* Mass break counter on ->server */
unsigned int cb_v_break; /* Mass break counter on ->volume */
unsigned int cb_break; /* Break counter on vnode */
/*
* callback.c
*/
+extern void afs_invalidate_mmap_work(struct work_struct *);
+extern void afs_server_init_callback_work(struct work_struct *work);
extern void afs_init_callback_state(struct afs_server *);
extern void __afs_break_callback(struct afs_vnode *, enum afs_cb_break_reason);
extern void afs_break_callback(struct afs_vnode *, enum afs_cb_break_reason);
}
/*
+ * Set the file size and block count. Estimate the number of 512 bytes blocks
+ * used, rounded up to nearest 1K for consistency with other AFS clients.
+ */
+static inline void afs_set_i_size(struct afs_vnode *vnode, u64 size)
+{
+ i_size_write(&vnode->vfs_inode, size);
+ vnode->vfs_inode.i_blocks = ((size + 1023) >> 10) << 1;
+}
+
+/*
* Check for a conflicting operation on a directory that we just unlinked from.
* If someone managed to sneak a link or an unlink in on the file we just
* unlinked, we won't be able to trust nlink on an AFS file (but not YFS).
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* AFS protocol bits
+ *
+ * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+
+#define AFSCAPABILITIESMAX 196 /* Maximum number of words in a capability set */
+
+/* AFS3 Fileserver capabilities word 0 */
+#define AFS3_VICED_CAPABILITY_ERRORTRANS 0x0001 /* Uses UAE errors */
+#define AFS3_VICED_CAPABILITY_64BITFILES 0x0002 /* FetchData64 & StoreData64 supported */
+#define AFS3_VICED_CAPABILITY_WRITELOCKACL 0x0004 /* Can lock a file even without lock perm */
+#define AFS3_VICED_CAPABILITY_SANEACLS 0x0008 /* ACLs reviewed for sanity - don't use */
yfs_LockMandatoryWrite = 0x101,
yfs_LockMandatoryExtend = 0x102,
};
+
+/* RXYFS Viced Capability Flags */
+#define YFS_VICED_CAPABILITY_ERRORTRANS 0x0001 /* Deprecated v0.195 */
+#define YFS_VICED_CAPABILITY_64BITFILES 0x0002 /* Deprecated v0.195 */
+#define YFS_VICED_CAPABILITY_WRITELOCKACL 0x0004 /* Can lock a file even without lock perm */
+#define YFS_VICED_CAPABILITY_SANEACLS 0x0008 /* Deprecated v0.195 */
if (vnode->cb_server != server) {
vnode->cb_server = server;
vnode->cb_s_break = server->cb_s_break;
+ vnode->cb_fs_s_break = atomic_read(&server->cell->fs_s_break);
vnode->cb_v_break = vnode->volume->cb_v_break;
clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
}
server->addr_version = alist->version;
server->uuid = *uuid;
rwlock_init(&server->fs_lock);
+ INIT_WORK(&server->initcb_work, afs_server_init_callback_work);
init_waitqueue_head(&server->probe_wq);
INIT_LIST_HEAD(&server->probe_link);
spin_lock_init(&server->probe_lock);
if (test_bit(AFS_SERVER_FL_MAY_HAVE_CB, &server->flags))
afs_give_up_callbacks(net, server);
+ flush_work(&server->initcb_work);
afs_put_server(net, server, afs_server_trace_destroy);
}
vnode->lock_state = AFS_VNODE_LOCK_NONE;
init_rwsem(&vnode->rmdir_lock);
+ INIT_WORK(&vnode->cb_work, afs_invalidate_mmap_work);
_leave(" = %p", &vnode->vfs_inode);
return &vnode->vfs_inode;
write_seqlock(&vnode->cb_lock);
i_size = i_size_read(&vnode->vfs_inode);
if (maybe_i_size > i_size)
- i_size_write(&vnode->vfs_inode, maybe_i_size);
+ afs_set_i_size(vnode, maybe_i_size);
write_sequnlock(&vnode->cb_lock);
}
}
/* Has the page moved or been split? */
- if (unlikely(page != xas_reload(&xas)))
+ if (unlikely(page != xas_reload(&xas))) {
+ put_page(page);
break;
+ }
- if (!trylock_page(page))
+ if (!trylock_page(page)) {
+ put_page(page);
break;
+ }
if (!PageDirty(page) || PageWriteback(page)) {
unlock_page(page);
+ put_page(page);
break;
}
t = afs_page_dirty_to(page, priv);
if (f != 0 && !new_content) {
unlock_page(page);
+ put_page(page);
break;
}
ssize_t afs_file_write(struct kiocb *iocb, struct iov_iter *from)
{
struct afs_vnode *vnode = AFS_FS_I(file_inode(iocb->ki_filp));
+ struct afs_file *af = iocb->ki_filp->private_data;
ssize_t result;
size_t count = iov_iter_count(from);
if (!count)
return 0;
+ result = afs_validate(vnode, af->key);
+ if (result < 0)
+ return result;
+
result = generic_file_write_iter(iocb, from);
_leave(" = %zd", result);
*/
int afs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
- struct inode *inode = file_inode(file);
- struct afs_vnode *vnode = AFS_FS_I(inode);
+ struct afs_vnode *vnode = AFS_FS_I(file_inode(file));
+ struct afs_file *af = file->private_data;
+ int ret;
_enter("{%llx:%llu},{n=%pD},%d",
vnode->fid.vid, vnode->fid.vnode, file,
datasync);
+ ret = afs_validate(vnode, af->key);
+ if (ret < 0)
+ return ret;
+
return file_write_and_wait_range(file, start, end);
}
struct file *file = vmf->vma->vm_file;
struct inode *inode = file_inode(file);
struct afs_vnode *vnode = AFS_FS_I(inode);
+ struct afs_file *af = file->private_data;
unsigned long priv;
vm_fault_t ret = VM_FAULT_RETRY;
_enter("{{%llx:%llu}},{%lx}", vnode->fid.vid, vnode->fid.vnode, page->index);
+ afs_validate(vnode, af->key);
+
sb_start_pagefault(inode->i_sb);
/* Wait for the page to be written to the cache before we allow it to
if (!ordered) {
ordered = btrfs_lookup_ordered_extent(inode, offset);
- BUG_ON(!ordered); /* Logic error */
+ /*
+ * The bio range is not covered by any ordered extent,
+ * must be a code logic error.
+ */
+ if (unlikely(!ordered)) {
+ WARN(1, KERN_WARNING
+ "no ordered extent for root %llu ino %llu offset %llu\n",
+ inode->root->root_key.objectid,
+ btrfs_ino(inode), offset);
+ kvfree(sums);
+ return BLK_STS_IOERR;
+ }
}
nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info,
{
lockdep_assert_held(&info->lock);
- btrfs_info(fs_info, "space_info %llu has %llu free, is %sfull",
+ /* The free space could be negative in case of overcommit */
+ btrfs_info(fs_info, "space_info %llu has %lld free, is %sfull",
info->flags,
- info->total_bytes - btrfs_space_info_used(info, true),
+ (s64)(info->total_bytes - btrfs_space_info_used(info, true)),
info->full ? "" : "not ");
btrfs_info(fs_info,
"space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu zone_unusable=%llu",
*/
static int rollback_verity(struct btrfs_inode *inode)
{
- struct btrfs_trans_handle *trans;
+ struct btrfs_trans_handle *trans = NULL;
struct btrfs_root *root = inode->root;
int ret;
trans = btrfs_start_transaction(root, 2);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
+ trans = NULL;
btrfs_handle_fs_error(root->fs_info, ret,
"failed to start transaction in verity rollback %llu",
(u64)inode->vfs_inode.i_ino);
btrfs_abort_transaction(trans, ret);
goto out;
}
- btrfs_end_transaction(trans);
out:
+ if (trans)
+ btrfs_end_transaction(trans);
return ret;
}
atomic_set(&device->dev_stats_ccnt, 0);
extent_io_tree_release(&device->alloc_state);
+ /*
+ * Reset the flush error record. We might have a transient flush error
+ * in this mount, and if so we aborted the current transaction and set
+ * the fs to an error state, guaranteeing no super blocks can be further
+ * committed. However that error might be transient and if we unmount the
+ * filesystem and mount it again, we should allow the mount to succeed
+ * (btrfs_check_rw_degradable() should not fail) - if after mounting the
+ * filesystem again we still get flush errors, then we will again abort
+ * any transaction and set the error state, guaranteeing no commits of
+ * unsafe super blocks.
+ */
+ device->last_flush_error = 0;
+
/* Verify the device is back in a pristine state */
ASSERT(!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state));
ASSERT(!test_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state));
}
EXPORT_SYMBOL_GPL(invalidate_bh_lrus);
-void invalidate_bh_lrus_cpu(int cpu)
+/*
+ * It's called from workqueue context so we need a bh_lru_lock to close
+ * the race with preemption/irq.
+ */
+void invalidate_bh_lrus_cpu(void)
{
struct bh_lru *b;
bh_lru_lock();
- b = per_cpu_ptr(&bh_lrus, cpu);
+ b = this_cpu_ptr(&bh_lrus);
__invalidate_bh_lrus(b);
bh_lru_unlock();
}
list_for_each_entry(req, &ci->i_unsafe_dirops,
r_unsafe_dir_item) {
s = req->r_session;
- if (unlikely(s->s_mds > max)) {
+ if (unlikely(s->s_mds >= max)) {
spin_unlock(&ci->i_unsafe_lock);
goto retry;
}
list_for_each_entry(req, &ci->i_unsafe_iops,
r_unsafe_target_item) {
s = req->r_session;
- if (unlikely(s->s_mds > max)) {
+ if (unlikely(s->s_mds >= max)) {
spin_unlock(&ci->i_unsafe_lock);
goto retry;
}
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/cache.c - CIFS filesystem cache index structure definitions
+ * CIFS filesystem cache index structure definitions
*
* Copyright (c) 2010 Novell, Inc.
* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * fs/cifs_debug.c
*
* Copyright (C) International Business Machines Corp., 2000,2005
*
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifs_fs_sb.h
*
* Copyright (c) International Business Machines Corp., 2002,2004
* Author(s): Steve French (sfrench@us.ibm.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifs_ioctl.h
*
* Structure definitions for io control for cifs/smb3
*
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/cifs_spnego.c -- SPNEGO upcall management for CIFS
+ * SPNEGO upcall management for CIFS
*
* Copyright (c) 2007 Red Hat, Inc.
* Author(s): Jeff Layton (jlayton@redhat.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifs_spnego.h -- SPNEGO upcall management for CIFS
+ * SPNEGO upcall management for CIFS
*
* Copyright (c) 2007 Red Hat, Inc.
* Author(s): Jeff Layton (jlayton@redhat.com)
// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * fs/cifs/cifs_unicode.c
*
* Copyright (c) International Business Machines Corp., 2000,2009
* Modified by Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/cifsacl.c
*
* Copyright (C) International Business Machines Corp., 2007,2008
* Author(s): Steve French (sfrench@us.ibm.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifsacl.h
*
* Copyright (c) International Business Machines Corp., 2007
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/cifsencrypt.c
*
* Encryption and hashing operations relating to NTLM, NTLMv2. See MS-NLMP
* for more detailed information
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/cifsfs.c
*
* Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifsfs.h
*
* Copyright (c) International Business Machines Corp., 2002, 2007
* Author(s): Steve French (sfrench@us.ibm.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifsglob.h
*
* Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
#define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */
#define CIFS_INO_LOCK (5) /* lock bit for synchronization */
#define CIFS_INO_MODIFIED_ATTR (6) /* Indicate change in mtime/ctime */
+#define CIFS_INO_CLOSE_ON_LOCK (7) /* Not to defer the close when lock is set */
unsigned long flags;
spinlock_t writers_lock;
unsigned int writers; /* Number of writers on this inode */
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifspdu.h
*
* Copyright (c) International Business Machines Corp., 2002,2009
* Author(s): Steve French (sfrench@us.ibm.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/cifsproto.h
*
* Copyright (c) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
+extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
+ const char *path);
+
extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb3_fs_context *ctx);
extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
int from_reconnect);
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/cifssmb.c
*
* Copyright (C) International Business Machines Corp., 2002,2010
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/connect.c
*
* Copyright (C) International Business Machines Corp., 2002,2011
* Author(s): Steve French (sfrench@us.ibm.com)
module_put_and_exit(0);
}
-/**
+/*
* Returns true if srcaddr isn't specified and rhs isn't specified, or
* if srcaddr is specified and matches the IP address of the rhs argument
*/
/**
* cifs_setup_ipc - helper to setup the IPC tcon for the session
+ * @ses: smb session to issue the request on
+ * @ctx: the superblock configuration context to use for building the
+ * new tree connection for the IPC (interprocess communication RPC)
*
* A new IPC connection is made and stored in the session
* tcon_ipc. The IPC tcon has the same lifetime as the session.
/**
* cifs_free_ipc - helper to release the session IPC tcon
+ * @ses: smb session to unmount the IPC from
*
* Needs to be called everytime a session is destroyed.
*
/**
* cifs_get_smb_ses - get a session matching @ctx data from @server
+ * @server: server to setup the session to
+ * @ctx: superblock configuration context to use to setup the session
*
* This function assumes it is being called from cifs_mount() where we
* already got a server reference (server refcount +1). See
/**
* cifs_get_tcon - get a tcon matching @ctx data from @ses
+ * @ses: smb session to issue the request on
+ * @ctx: the superblock configuration context to use for building the
*
* - tcon refcount is the number of mount points using the tcon.
* - ses refcount is the number of tcon using the session.
spin_lock(&cifs_tcp_ses_lock);
cifs_sb = CIFS_SB(sb);
tlink = cifs_get_tlink(cifs_sb_master_tlink(cifs_sb));
- if (IS_ERR(tlink)) {
+ if (tlink == NULL) {
+ /* can not match superblock if tlink were ever null */
spin_unlock(&cifs_tcp_ses_lock);
- return rc;
+ return 0;
}
tcon = tlink_tcon(tlink);
ses = tcon->ses;
return full_path;
}
-/**
+/*
* expand_dfs_referral - Perform a dfs referral query and update the cifs_sb
*
* If a referral is found, cifs_sb->ctx->mount_options will be (re-)allocated
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/dir.c
*
* vfs operations that deal with dentries
*
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/dns_resolve.c
*
* Copyright (c) 2007 Igor Mammedov
* Author(s): Igor Mammedov (niallain@gmail.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS
- * Handles host name to IP address resolution
+ * DNS Resolver upcall management for CIFS DFS
+ * Handles host name to IP address resolution
*
* Copyright (c) International Business Machines Corp., 2008
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/export.c
*
* Copyright (C) International Business Machines Corp., 2007
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/file.c
*
* vfs operations that deal with files
*
dclose = kmalloc(sizeof(struct cifs_deferred_close), GFP_KERNEL);
if ((cinode->oplock == CIFS_CACHE_RHW_FLG) &&
cinode->lease_granted &&
+ !test_bit(CIFS_INO_CLOSE_ON_LOCK, &cinode->flags) &&
dclose) {
- if (test_bit(CIFS_INO_MODIFIED_ATTR, &cinode->flags)) {
+ if (test_and_clear_bit(CIFS_INO_MODIFIED_ATTR, &cinode->flags)) {
inode->i_ctime = inode->i_mtime = current_time(inode);
cifs_fscache_update_inode_cookie(inode);
}
cifs_read_flock(flock, &type, &lock, &unlock, &wait_flag,
tcon->ses->server);
cifs_sb = CIFS_FILE_SB(file);
+ set_bit(CIFS_INO_CLOSE_ON_LOCK, &CIFS_I(d_inode(cfile->dentry))->flags);
if (cap_unix(tcon->ses) &&
(CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
struct cifs_tcon *tcon;
struct cifs_sb_info *cifs_sb;
struct dentry *dentry = ctx->cfile->dentry;
- int rc;
+ ssize_t rc;
tcon = tlink_tcon(ctx->cfile->tlink);
cifs_sb = CIFS_SB(dentry->d_sb);
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/fscache.c - CIFS filesystem cache interface
+ * CIFS filesystem cache interface
*
* Copyright (c) 2010 Novell, Inc.
* Author(s): Suresh Jayaraman <sjayaraman@suse.de>
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/fscache.h - CIFS filesystem cache interface definitions
+ * CIFS filesystem cache interface definitions
*
* Copyright (c) 2010 Novell, Inc.
* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/inode.c
*
* Copyright (C) International Business Machines Corp., 2002,2010
* Author(s): Steve French (sfrench@us.ibm.com)
goto unlink_out;
}
- cifs_close_deferred_file(CIFS_I(inode));
+ cifs_close_deferred_file_under_dentry(tcon, full_path);
if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
rc = CIFSPOSIXDelFile(xid, tcon, full_path,
goto cifs_rename_exit;
}
- cifs_close_deferred_file(CIFS_I(d_inode(source_dentry)));
+ cifs_close_deferred_file_under_dentry(tcon, from_name);
if (d_inode(target_dentry) != NULL)
- cifs_close_deferred_file(CIFS_I(d_inode(target_dentry)));
+ cifs_close_deferred_file_under_dentry(tcon, to_name);
rc = cifs_do_rename(xid, source_dentry, from_name, target_dentry,
to_name);
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/ioctl.c
*
* vfs operations that deal with io control
*
if (pSMBFile == NULL)
break;
tcon = tlink_tcon(pSMBFile->tlink);
- caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
+ /* caps = le64_to_cpu(tcon->fsUnixInfo.Capability); */
if (get_user(ExtAttrBits, (int __user *)arg)) {
rc = -EFAULT;
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/link.c
*
* Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/misc.c
*
* Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
/* Uid is not converted */
buffer->Uid = treeCon->ses->Suid;
- buffer->Mid = get_next_mid(treeCon->ses->server);
+ if (treeCon->ses->server)
+ buffer->Mid = get_next_mid(treeCon->ses->server);
}
if (treeCon->Flags & SMB_SHARE_IS_IN_DFS)
buffer->Flags2 |= SMBFLG2_DFS;
/**
* cifs_queue_oplock_break - queue the oplock break handler for cfile
+ * @cfile: The file to break the oplock on
*
* This function is called from the demultiplex thread when it
* receives an oplock break for @cfile.
if (cancel_delayed_work(&cfile->deferred)) {
tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC);
if (tmp_list == NULL)
- continue;
+ break;
tmp_list->cfile = cfile;
list_add_tail(&tmp_list->list, &file_head);
}
if (cancel_delayed_work(&cfile->deferred)) {
tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC);
if (tmp_list == NULL)
- continue;
+ break;
tmp_list->cfile = cfile;
list_add_tail(&tmp_list->list, &file_head);
}
kfree(tmp_list);
}
}
+void
+cifs_close_deferred_file_under_dentry(struct cifs_tcon *tcon, const char *path)
+{
+ struct cifsFileInfo *cfile;
+ struct list_head *tmp;
+ struct file_list *tmp_list, *tmp_next_list;
+ struct list_head file_head;
+ void *page;
+ const char *full_path;
+
+ INIT_LIST_HEAD(&file_head);
+ page = alloc_dentry_path();
+ spin_lock(&tcon->open_file_lock);
+ list_for_each(tmp, &tcon->openFileList) {
+ cfile = list_entry(tmp, struct cifsFileInfo, tlist);
+ full_path = build_path_from_dentry(cfile->dentry, page);
+ if (strstr(full_path, path)) {
+ if (delayed_work_pending(&cfile->deferred)) {
+ if (cancel_delayed_work(&cfile->deferred)) {
+ tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC);
+ if (tmp_list == NULL)
+ break;
+ tmp_list->cfile = cfile;
+ list_add_tail(&tmp_list->list, &file_head);
+ }
+ }
+ }
+ }
+ spin_unlock(&tcon->open_file_lock);
+
+ list_for_each_entry_safe(tmp_list, tmp_next_list, &file_head, list) {
+ _cifsFileInfo_put(tmp_list->cfile, true, false);
+ list_del(&tmp_list->list);
+ kfree(tmp_list);
+ }
+ free_dentry_path(page);
+}
/* parses DFS refferal V3 structure
* caller is responsible for freeing target_nodes
/**
* cifs_alloc_hash - allocate hash and hash context together
+ * @name: The name of the crypto hash algo
+ * @shash: Where to put the pointer to the hash algo
+ * @sdesc: Where to put the pointer to the hash descriptor
*
* The caller has to make sure @sdesc is initialized to either NULL or
* a valid context. Both can be freed via cifs_free_hash().
/**
* cifs_free_hash - free hash and hash context together
+ * @shash: Where to find the pointer to the hash algo
+ * @sdesc: Where to find the pointer to the hash descriptor
*
* Freeing a NULL hash or context is safe.
*/
/**
* rqst_page_get_length - obtain the length and offset for a page in smb_rqst
- * Input: rqst - a smb_rqst, page - a page index for rqst
- * Output: *len - the length for this page, *offset - the offset for this page
+ * @rqst: The request descriptor
+ * @page: The index of the page to query
+ * @len: Where to store the length for this page:
+ * @offset: Where to store the offset for this page
*/
void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
unsigned int *len, unsigned int *offset)
/**
* copy_path_name - copy src path to dst, possibly truncating
+ * @dst: The destination buffer
+ * @src: The source name
*
* returns number of bytes written (including trailing nul)
*/
// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * fs/cifs/netmisc.c
*
* Copyright (c) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/ntlmssp.h
*
* Copyright (c) International Business Machines Corp., 2002,2007
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/readdir.c
*
* Directory search handling
*
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/rfc1002pdu.h
*
* Protocol Data Unit definitions for RFC 1001/1002 support
*
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/sess.c
*
* SMB/CIFS session setup handling routines
*
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/smb2file.c
*
* Copyright (C) International Business Machines Corp., 2002, 2011
* Author(s): Steve French (sfrench@us.ibm.com),
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/smb2glob.h
*
* Definitions for various global variables and structures
*
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/smb2inode.c
*
* Copyright (C) International Business Machines Corp., 2002, 2011
* Etersoft, 2012
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/smb2misc.c
*
* Copyright (C) International Business Machines Corp., 2002,2011
* Etersoft, 2012
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/smb2pdu.c
*
* Copyright (C) International Business Machines Corp., 2009, 2013
* Etersoft, 2012
buf->sd.OffsetDacl = cpu_to_le32(ptr - (__u8 *)&buf->sd);
/* Ship the ACL for now. we will copy it into buf later. */
aclptr = ptr;
- ptr += sizeof(struct cifs_acl);
+ ptr += sizeof(struct smb3_acl);
/* create one ACE to hold the mode embedded in reserved special SID */
acelen = setup_special_mode_ACE((struct cifs_ace *)ptr, (__u64)mode);
acl.AclRevision = ACL_REVISION; /* See 2.4.4.1 of MS-DTYP */
acl.AclSize = cpu_to_le16(acl_size);
acl.AceCount = cpu_to_le16(ace_count);
- memcpy(aclptr, &acl, sizeof(struct cifs_acl));
+ memcpy(aclptr, &acl, sizeof(struct smb3_acl));
buf->ccontext.DataLength = cpu_to_le32(ptr - (__u8 *)&buf->sd);
*len = roundup(ptr - (__u8 *)buf, 8);
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/smb2pdu.h
*
* Copyright (c) International Business Machines Corp., 2009, 2013
* Etersoft, 2012
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/smb2proto.h
*
* Copyright (c) International Business Machines Corp., 2002, 2011
* Etersoft, 2012
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/smb2status.h
*
* SMB2 Status code (network error) definitions
* Definitions are from MS-ERREF
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/smb2transport.c
*
* Copyright (C) International Business Machines Corp., 2002, 2011
* Etersoft, 2012
/* SPDX-License-Identifier: LGPL-2.1 */
/*
- * fs/cifs/smberr.h
*
* Copyright (c) International Business Machines Corp., 2002,2004
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/transport.c
*
* Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * fs/cifs/winucase.c
*
* Copyright (c) Jeffrey Layton <jlayton@redhat.com>, 2013
*
// SPDX-License-Identifier: LGPL-2.1
/*
- * fs/cifs/xattr.c
*
* Copyright (c) International Business Machines Corp., 2003, 2007
* Author(s): Steve French (sfrench@us.ibm.com)
}
if (vi->datalayout == EROFS_INODE_CHUNK_BASED) {
- if (!(vi->chunkformat & EROFS_CHUNK_FORMAT_ALL)) {
+ if (vi->chunkformat & ~EROFS_CHUNK_FORMAT_ALL) {
erofs_err(inode->i_sb,
"unsupported chunk format %x of nid %llu",
vi->chunkformat, vi->nid);
if (compacted_4b_initial == 32 / 4)
compacted_4b_initial = 0;
- if (vi->z_advise & Z_EROFS_ADVISE_COMPACTED_2B)
+ if ((vi->z_advise & Z_EROFS_ADVISE_COMPACTED_2B) &&
+ compacted_4b_initial < totalidx)
compacted_2b = rounddown(totalidx - compacted_4b_initial, 16);
else
compacted_2b = 0;
struct ext2_sb_info *sbi = EXT2_SB(sb);
if (block_group >= sbi->s_groups_count) {
- ext2_error (sb, "ext2_get_group_desc",
- "block_group >= groups_count - "
- "block_group = %d, groups_count = %lu",
- block_group, sbi->s_groups_count);
+ WARN(1, "block_group >= groups_count - "
+ "block_group = %d, groups_count = %lu",
+ block_group, sbi->s_groups_count);
return NULL;
}
group_desc = block_group >> EXT2_DESC_PER_BLOCK_BITS(sb);
offset = block_group & (EXT2_DESC_PER_BLOCK(sb) - 1);
if (!sbi->s_group_desc[group_desc]) {
- ext2_error (sb, "ext2_get_group_desc",
- "Group descriptor not loaded - "
- "block_group = %d, group_desc = %lu, desc = %lu",
- block_group, group_desc, offset);
+ WARN(1, "Group descriptor not loaded - "
+ "block_group = %d, group_desc = %lu, desc = %lu",
+ block_group, group_desc, offset);
return NULL;
}
mapping_set_gfp_mask(mapping, GFP_HIGHUSER_MOVABLE);
mapping->private_data = NULL;
mapping->writeback_index = 0;
- __init_rwsem(&mapping->invalidate_lock, "mapping.invalidate_lock",
- &sb->s_type->invalidate_lock_key);
+ init_rwsem(&mapping->invalidate_lock);
+ lockdep_set_class_and_name(&mapping->invalidate_lock,
+ &sb->s_type->invalidate_lock_key,
+ "mapping.invalidate_lock");
inode->i_private = NULL;
inode->i_mapping = mapping;
INIT_HLIST_HEAD(&inode->i_dentry); /* buggered by rcu freeing */
#include <linux/rculist_nulls.h>
#include <linux/cpu.h>
#include <linux/tracehook.h>
+#include <uapi/linux/io_uring.h>
#include "io-wq.h"
static void io_worker_exit(struct io_worker *worker)
{
struct io_wqe *wqe = worker->wqe;
- struct io_wqe_acct *acct = io_wqe_get_acct(worker);
if (refcount_dec_and_test(&worker->ref))
complete(&worker->ref_done);
if (worker->flags & IO_WORKER_F_FREE)
hlist_nulls_del_rcu(&worker->nulls_node);
list_del_rcu(&worker->all_list);
- acct->nr_workers--;
preempt_disable();
io_wqe_dec_running(worker);
worker->flags = 0;
*/
static bool io_wqe_create_worker(struct io_wqe *wqe, struct io_wqe_acct *acct)
{
- bool do_create = false;
-
/*
* Most likely an attempt to queue unbounded work on an io_wq that
* wasn't setup with any unbounded workers.
pr_warn_once("io-wq is not configured for unbound workers");
raw_spin_lock(&wqe->lock);
- if (acct->nr_workers < acct->max_workers) {
- acct->nr_workers++;
- do_create = true;
+ if (acct->nr_workers == acct->max_workers) {
+ raw_spin_unlock(&wqe->lock);
+ return true;
}
+ acct->nr_workers++;
raw_spin_unlock(&wqe->lock);
- if (do_create) {
- atomic_inc(&acct->nr_running);
- atomic_inc(&wqe->wq->worker_refs);
- return create_io_worker(wqe->wq, wqe, acct->index);
- }
-
- return true;
+ atomic_inc(&acct->nr_running);
+ atomic_inc(&wqe->wq->worker_refs);
+ return create_io_worker(wqe->wq, wqe, acct->index);
}
static void io_wqe_inc_running(struct io_worker *worker)
}
/* timed out, exit unless we're the last worker */
if (last_timeout && acct->nr_workers > 1) {
+ acct->nr_workers--;
raw_spin_unlock(&wqe->lock);
__set_current_state(TASK_RUNNING);
break;
if (!get_signal(&ksig))
continue;
- if (fatal_signal_pending(current))
+ if (fatal_signal_pending(current) ||
+ signal_group_exit(current->signal))
break;
continue;
}
{
int i, node, prev = 0;
+ BUILD_BUG_ON((int) IO_WQ_ACCT_BOUND != (int) IO_WQ_BOUND);
+ BUILD_BUG_ON((int) IO_WQ_ACCT_UNBOUND != (int) IO_WQ_UNBOUND);
+ BUILD_BUG_ON((int) IO_WQ_ACCT_NR != 2);
+
for (i = 0; i < 2; i++) {
if (new_count[i] > task_rlimit(current, RLIMIT_NPROC))
new_count[i] = task_rlimit(current, RLIMIT_NPROC);
struct io_close {
struct file *file;
int fd;
+ u32 file_slot;
};
struct io_timeout_data {
struct iovec fast_iov[UIO_FASTIOV];
const struct iovec *free_iovec;
struct iov_iter iter;
+ struct iov_iter_state iter_state;
size_t bytes_done;
struct wait_page_queue wpq;
};
REQ_F_BUFFER_SELECTED_BIT,
REQ_F_COMPLETE_INLINE_BIT,
REQ_F_REISSUE_BIT,
- REQ_F_DONT_REISSUE_BIT,
REQ_F_CREDS_BIT,
REQ_F_REFCOUNT_BIT,
REQ_F_ARM_LTIMEOUT_BIT,
REQ_F_COMPLETE_INLINE = BIT(REQ_F_COMPLETE_INLINE_BIT),
/* caller should reissue async */
REQ_F_REISSUE = BIT(REQ_F_REISSUE_BIT),
- /* don't attempt request reissue, see io_rw_reissue() */
- REQ_F_DONT_REISSUE = BIT(REQ_F_DONT_REISSUE_BIT),
/* supports async reads */
REQ_F_NOWAIT_READ = BIT(REQ_F_NOWAIT_READ_BIT),
/* supports async writes */
static int io_install_fixed_file(struct io_kiocb *req, struct file *file,
unsigned int issue_flags, u32 slot_index);
+static int io_close_fixed(struct io_kiocb *req, unsigned int issue_flags);
+
static enum hrtimer_restart io_link_timeout_fn(struct hrtimer *timer);
static struct kmem_cache *req_cachep;
req = list_first_entry(done, struct io_kiocb, inflight_entry);
list_del(&req->inflight_entry);
- if (READ_ONCE(req->result) == -EAGAIN &&
- !(req->flags & REQ_F_DONT_REISSUE)) {
- req->iopoll_completed = 0;
- io_req_task_queue_reissue(req);
- continue;
- }
-
__io_cqring_fill_event(ctx, req->user_data, req->result,
io_put_rw_kbuf(req));
(*nr_events)++;
if (!rw)
return !io_req_prep_async(req);
- /* may have left rw->iter inconsistent on -EIOCBQUEUED */
- iov_iter_revert(&rw->iter, req->result - iov_iter_count(&rw->iter));
+ iov_iter_restore(&rw->iter, &rw->iter_state);
return true;
}
if (kiocb->ki_flags & IOCB_WRITE)
kiocb_end_write(req);
if (unlikely(res != req->result)) {
- if (!(res == -EAGAIN && io_rw_should_reissue(req) &&
- io_resubmit_prep(req))) {
- req_set_fail(req);
- req->flags |= REQ_F_DONT_REISSUE;
+ if (res == -EAGAIN && io_rw_should_reissue(req)) {
+ req->flags |= REQ_F_REISSUE;
+ return;
}
}
return __io_file_supports_nowait(req->file, rw);
}
-static int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe)
+static int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe,
+ int rw)
{
struct io_ring_ctx *ctx = req->ctx;
struct kiocb *kiocb = &req->rw.kiocb;
if (unlikely(ret))
return ret;
- /* don't allow async punt for O_NONBLOCK or RWF_NOWAIT */
- if ((kiocb->ki_flags & IOCB_NOWAIT) || (file->f_flags & O_NONBLOCK))
+ /*
+ * If the file is marked O_NONBLOCK, still allow retry for it if it
+ * supports async. Otherwise it's impossible to use O_NONBLOCK files
+ * reliably. If not, or it IOCB_NOWAIT is set, don't retry.
+ */
+ if ((kiocb->ki_flags & IOCB_NOWAIT) ||
+ ((file->f_flags & O_NONBLOCK) && !io_file_supports_nowait(req, rw)))
req->flags |= REQ_F_NOWAIT;
ioprio = READ_ONCE(sqe->ioprio);
{
struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
struct io_async_rw *io = req->async_data;
- bool check_reissue = kiocb->ki_complete == io_complete_rw;
/* add previously done IO, if any */
if (io && io->bytes_done > 0) {
if (req->flags & REQ_F_CUR_POS)
req->file->f_pos = kiocb->ki_pos;
- if (ret >= 0 && check_reissue)
+ if (ret >= 0 && (kiocb->ki_complete == io_complete_rw))
__io_complete_rw(req, ret, 0, issue_flags);
else
io_rw_done(kiocb, ret);
- if (check_reissue && (req->flags & REQ_F_REISSUE)) {
+ if (req->flags & REQ_F_REISSUE) {
req->flags &= ~REQ_F_REISSUE;
if (io_resubmit_prep(req)) {
io_req_task_queue_reissue(req);
} else {
+ unsigned int cflags = io_put_rw_kbuf(req);
+ struct io_ring_ctx *ctx = req->ctx;
+
req_set_fail(req);
- __io_req_complete(req, issue_flags, ret,
- io_put_rw_kbuf(req));
+ if (issue_flags & IO_URING_F_NONBLOCK) {
+ mutex_lock(&ctx->uring_lock);
+ __io_req_complete(req, issue_flags, ret, cflags);
+ mutex_unlock(&ctx->uring_lock);
+ } else {
+ __io_req_complete(req, issue_flags, ret, cflags);
+ }
}
}
}
ret = nr;
break;
}
+ if (!iov_iter_is_bvec(iter)) {
+ iov_iter_advance(iter, nr);
+ } else {
+ req->rw.len -= nr;
+ req->rw.addr += nr;
+ }
ret += nr;
if (nr != iovec.iov_len)
break;
- req->rw.len -= nr;
- req->rw.addr += nr;
- iov_iter_advance(iter, nr);
}
return ret;
if (!force && !io_op_defs[req->opcode].needs_async_setup)
return 0;
if (!req->async_data) {
+ struct io_async_rw *iorw;
+
if (io_alloc_async_data(req)) {
kfree(iovec);
return -ENOMEM;
}
io_req_map_rw(req, iovec, fast_iov, iter);
+ iorw = req->async_data;
+ /* we've copied and mapped the iter, ensure state is saved */
+ iov_iter_save_state(&iorw->iter, &iorw->iter_state);
}
return 0;
}
iorw->free_iovec = iov;
if (iov)
req->flags |= REQ_F_NEED_CLEANUP;
+ iov_iter_save_state(&iorw->iter, &iorw->iter_state);
return 0;
}
{
if (unlikely(!(req->file->f_mode & FMODE_READ)))
return -EBADF;
- return io_prep_rw(req, sqe);
+ return io_prep_rw(req, sqe, READ);
}
/*
struct kiocb *kiocb = &req->rw.kiocb;
struct iov_iter __iter, *iter = &__iter;
struct io_async_rw *rw = req->async_data;
- ssize_t io_size, ret, ret2;
bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
+ struct iov_iter_state __state, *state;
+ ssize_t ret, ret2;
if (rw) {
iter = &rw->iter;
+ state = &rw->iter_state;
+ /*
+ * We come here from an earlier attempt, restore our state to
+ * match in case it doesn't. It's cheap enough that we don't
+ * need to make this conditional.
+ */
+ iov_iter_restore(iter, state);
iovec = NULL;
} else {
ret = io_import_iovec(READ, req, &iovec, iter, !force_nonblock);
if (ret < 0)
return ret;
+ state = &__state;
+ iov_iter_save_state(iter, state);
}
- io_size = iov_iter_count(iter);
- req->result = io_size;
+ req->result = iov_iter_count(iter);
/* Ensure we clear previously set non-block flag */
if (!force_nonblock)
return ret ?: -EAGAIN;
}
- ret = rw_verify_area(READ, req->file, io_kiocb_ppos(kiocb), io_size);
+ ret = rw_verify_area(READ, req->file, io_kiocb_ppos(kiocb), req->result);
if (unlikely(ret)) {
kfree(iovec);
return ret;
/* no retry on NONBLOCK nor RWF_NOWAIT */
if (req->flags & REQ_F_NOWAIT)
goto done;
- /* some cases will consume bytes even on error returns */
- iov_iter_reexpand(iter, iter->count + iter->truncated);
- iov_iter_revert(iter, io_size - iov_iter_count(iter));
ret = 0;
} else if (ret == -EIOCBQUEUED) {
goto out_free;
- } else if (ret <= 0 || ret == io_size || !force_nonblock ||
+ } else if (ret <= 0 || ret == req->result || !force_nonblock ||
(req->flags & REQ_F_NOWAIT) || !need_read_all(req)) {
/* read all, failed, already did sync or don't want to retry */
goto done;
}
+ /*
+ * Don't depend on the iter state matching what was consumed, or being
+ * untouched in case of error. Restore it and we'll advance it
+ * manually if we need to.
+ */
+ iov_iter_restore(iter, state);
+
ret2 = io_setup_async_rw(req, iovec, inline_vecs, iter, true);
if (ret2)
return ret2;
iovec = NULL;
rw = req->async_data;
- /* now use our persistent iterator, if we aren't already */
- iter = &rw->iter;
+ /*
+ * Now use our persistent iterator and state, if we aren't already.
+ * We've restored and mapped the iter to match.
+ */
+ if (iter != &rw->iter) {
+ iter = &rw->iter;
+ state = &rw->iter_state;
+ }
do {
- io_size -= ret;
+ /*
+ * We end up here because of a partial read, either from
+ * above or inside this loop. Advance the iter by the bytes
+ * that were consumed.
+ */
+ iov_iter_advance(iter, ret);
+ if (!iov_iter_count(iter))
+ break;
rw->bytes_done += ret;
+ iov_iter_save_state(iter, state);
+
/* if we can retry, do so with the callbacks armed */
if (!io_rw_should_retry(req)) {
kiocb->ki_flags &= ~IOCB_WAITQ;
return 0;
/* we got some bytes, but not all. retry. */
kiocb->ki_flags &= ~IOCB_WAITQ;
- } while (ret > 0 && ret < io_size);
+ iov_iter_restore(iter, state);
+ } while (ret > 0);
done:
kiocb_done(kiocb, ret, issue_flags);
out_free:
{
if (unlikely(!(req->file->f_mode & FMODE_WRITE)))
return -EBADF;
- return io_prep_rw(req, sqe);
+ return io_prep_rw(req, sqe, WRITE);
}
static int io_write(struct io_kiocb *req, unsigned int issue_flags)
struct kiocb *kiocb = &req->rw.kiocb;
struct iov_iter __iter, *iter = &__iter;
struct io_async_rw *rw = req->async_data;
- ssize_t ret, ret2, io_size;
bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
+ struct iov_iter_state __state, *state;
+ ssize_t ret, ret2;
if (rw) {
iter = &rw->iter;
+ state = &rw->iter_state;
+ iov_iter_restore(iter, state);
iovec = NULL;
} else {
ret = io_import_iovec(WRITE, req, &iovec, iter, !force_nonblock);
if (ret < 0)
return ret;
+ state = &__state;
+ iov_iter_save_state(iter, state);
}
- io_size = iov_iter_count(iter);
- req->result = io_size;
+ req->result = iov_iter_count(iter);
/* Ensure we clear previously set non-block flag */
if (!force_nonblock)
(req->flags & REQ_F_ISREG))
goto copy_iov;
- ret = rw_verify_area(WRITE, req->file, io_kiocb_ppos(kiocb), io_size);
+ ret = rw_verify_area(WRITE, req->file, io_kiocb_ppos(kiocb), req->result);
if (unlikely(ret))
goto out_free;
kiocb_done(kiocb, ret2, issue_flags);
} else {
copy_iov:
- /* some cases will consume bytes even on error returns */
- iov_iter_reexpand(iter, iter->count + iter->truncated);
- iov_iter_revert(iter, io_size - iov_iter_count(iter));
+ iov_iter_restore(iter, state);
ret = io_setup_async_rw(req, iovec, inline_vecs, iter, false);
return ret ?: -EAGAIN;
}
int i, bid = pbuf->bid;
for (i = 0; i < pbuf->nbufs; i++) {
- buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+ buf = kmalloc(sizeof(*buf), GFP_KERNEL_ACCOUNT);
if (!buf)
break;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
if (sqe->ioprio || sqe->off || sqe->addr || sqe->len ||
- sqe->rw_flags || sqe->buf_index || sqe->splice_fd_in)
+ sqe->rw_flags || sqe->buf_index)
return -EINVAL;
if (req->flags & REQ_F_FIXED_FILE)
return -EBADF;
req->close.fd = READ_ONCE(sqe->fd);
+ req->close.file_slot = READ_ONCE(sqe->file_index);
+ if (req->close.file_slot && req->close.fd)
+ return -EINVAL;
+
return 0;
}
struct file *file = NULL;
int ret = -EBADF;
+ if (req->close.file_slot) {
+ ret = io_close_fixed(req, issue_flags);
+ goto err;
+ }
+
spin_lock(&files->file_lock);
fdt = files_fdtable(files);
if (close->fd >= fdt->max_fds) {
if (req->poll.events & EPOLLONESHOT)
flags = 0;
if (!io_cqring_fill_event(ctx, req->user_data, error, flags)) {
- req->poll.done = true;
+ req->poll.events |= EPOLLONESHOT;
flags = 0;
}
if (flags & IORING_CQE_F_MORE)
} else {
bool done;
+ if (req->poll.done) {
+ spin_unlock(&ctx->completion_lock);
+ return;
+ }
done = __io_poll_complete(req, req->result);
if (done) {
io_poll_remove_double(req);
hash_del(&req->hash_node);
+ req->poll.done = true;
} else {
req->result = 0;
add_wait_queue(req->poll.head, &req->poll.wait);
hash_del(&req->hash_node);
io_poll_remove_double(req);
+ apoll->poll.done = true;
spin_unlock(&ctx->completion_lock);
if (!READ_ONCE(apoll->poll.canceled))
struct io_ring_ctx *ctx = req->ctx;
struct io_poll_table ipt;
__poll_t mask;
+ bool done;
ipt.pt._qproc = io_poll_queue_proc;
if (mask) { /* no async, we'd stolen it */
ipt.error = 0;
- io_poll_complete(req, mask);
+ done = io_poll_complete(req, mask);
}
spin_unlock(&ctx->completion_lock);
if (mask) {
io_cqring_ev_posted(ctx);
- if (poll->events & EPOLLONESHOT)
+ if (done)
io_put_req(req);
}
return ipt.error;
struct io_uring_rsrc_update2 up;
int ret;
- if (issue_flags & IO_URING_F_NONBLOCK)
- return -EAGAIN;
-
up.offset = req->rsrc_update.offset;
up.data = req->rsrc_update.arg;
up.nr = 0;
up.tags = 0;
up.resv = 0;
- mutex_lock(&ctx->uring_lock);
+ io_ring_submit_lock(ctx, !(issue_flags & IO_URING_F_NONBLOCK));
ret = __io_register_rsrc_update(ctx, IORING_RSRC_FILE,
&up, req->rsrc_update.nr_args);
- mutex_unlock(&ctx->uring_lock);
+ io_ring_submit_unlock(ctx, !(issue_flags & IO_URING_F_NONBLOCK));
if (ret < 0)
req_set_fail(req);
break;
} while (1);
+ if (uts) {
+ struct timespec64 ts;
+
+ if (get_timespec64(&ts, uts))
+ return -EFAULT;
+ timeout = timespec64_to_jiffies(&ts);
+ }
+
if (sig) {
#ifdef CONFIG_COMPAT
if (in_compat_syscall())
return ret;
}
- if (uts) {
- struct timespec64 ts;
-
- if (get_timespec64(&ts, uts))
- return -EFAULT;
- timeout = timespec64_to_jiffies(&ts);
- }
-
init_waitqueue_func_entry(&iowq.wq, io_wake_function);
iowq.wq.private = current;
INIT_LIST_HEAD(&iowq.wq.entry);
#endif
}
+static int io_queue_rsrc_removal(struct io_rsrc_data *data, unsigned idx,
+ struct io_rsrc_node *node, void *rsrc)
+{
+ struct io_rsrc_put *prsrc;
+
+ prsrc = kzalloc(sizeof(*prsrc), GFP_KERNEL);
+ if (!prsrc)
+ return -ENOMEM;
+
+ prsrc->tag = *io_get_tag_slot(data, idx);
+ prsrc->rsrc = rsrc;
+ list_add(&prsrc->list, &node->rsrc_list);
+ return 0;
+}
+
static int io_install_fixed_file(struct io_kiocb *req, struct file *file,
unsigned int issue_flags, u32 slot_index)
{
struct io_ring_ctx *ctx = req->ctx;
bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
+ bool needs_switch = false;
struct io_fixed_file *file_slot;
int ret = -EBADF;
slot_index = array_index_nospec(slot_index, ctx->nr_user_files);
file_slot = io_fixed_file_slot(&ctx->file_table, slot_index);
- ret = -EBADF;
- if (file_slot->file_ptr)
- goto err;
+
+ if (file_slot->file_ptr) {
+ struct file *old_file;
+
+ ret = io_rsrc_node_switch_start(ctx);
+ if (ret)
+ goto err;
+
+ old_file = (struct file *)(file_slot->file_ptr & FFS_MASK);
+ ret = io_queue_rsrc_removal(ctx->file_data, slot_index,
+ ctx->rsrc_node, old_file);
+ if (ret)
+ goto err;
+ file_slot->file_ptr = 0;
+ needs_switch = true;
+ }
*io_get_tag_slot(ctx->file_data, slot_index) = 0;
io_fixed_file_set(file_slot, file);
ret = 0;
err:
+ if (needs_switch)
+ io_rsrc_node_switch(ctx, ctx->file_data);
io_ring_submit_unlock(ctx, !force_nonblock);
if (ret)
fput(file);
return ret;
}
-static int io_queue_rsrc_removal(struct io_rsrc_data *data, unsigned idx,
- struct io_rsrc_node *node, void *rsrc)
+static int io_close_fixed(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_rsrc_put *prsrc;
+ unsigned int offset = req->close.file_slot - 1;
+ struct io_ring_ctx *ctx = req->ctx;
+ struct io_fixed_file *file_slot;
+ struct file *file;
+ int ret, i;
- prsrc = kzalloc(sizeof(*prsrc), GFP_KERNEL);
- if (!prsrc)
- return -ENOMEM;
+ io_ring_submit_lock(ctx, !(issue_flags & IO_URING_F_NONBLOCK));
+ ret = -ENXIO;
+ if (unlikely(!ctx->file_data))
+ goto out;
+ ret = -EINVAL;
+ if (offset >= ctx->nr_user_files)
+ goto out;
+ ret = io_rsrc_node_switch_start(ctx);
+ if (ret)
+ goto out;
- prsrc->tag = *io_get_tag_slot(data, idx);
- prsrc->rsrc = rsrc;
- list_add(&prsrc->list, &node->rsrc_list);
- return 0;
+ i = array_index_nospec(offset, ctx->nr_user_files);
+ file_slot = io_fixed_file_slot(&ctx->file_table, i);
+ ret = -EBADF;
+ if (!file_slot->file_ptr)
+ goto out;
+
+ file = (struct file *)(file_slot->file_ptr & FFS_MASK);
+ ret = io_queue_rsrc_removal(ctx->file_data, offset, ctx->rsrc_node, file);
+ if (ret)
+ goto out;
+
+ file_slot->file_ptr = 0;
+ io_rsrc_node_switch(ctx, ctx->file_data);
+ ret = 0;
+out:
+ io_ring_submit_unlock(ctx, !(issue_flags & IO_URING_F_NONBLOCK));
+ return ret;
}
static int __io_sqe_files_update(struct io_ring_ctx *ctx,
struct io_buffer *buf;
unsigned long index;
- xa_for_each(&ctx->io_buffers, index, buf)
+ xa_for_each(&ctx->io_buffers, index, buf) {
__io_remove_buffers(ctx, buf, index, -1U);
+ cond_resched();
+ }
}
static void io_req_cache_free(struct list_head *list)
struct io_tctx_node *node;
unsigned long index;
- xa_for_each(&tctx->xa, index, node)
+ xa_for_each(&tctx->xa, index, node) {
io_uring_del_tctx_node(index);
+ cond_resched();
+ }
if (wq) {
/*
* Must be after io_uring_del_task_file() (removes nodes under
* ordering. Fine to drop uring_lock here, we hold
* a ref to the ctx.
*/
+ refcount_inc(&sqd->refs);
mutex_unlock(&ctx->uring_lock);
mutex_lock(&sqd->lock);
mutex_lock(&ctx->uring_lock);
- tctx = sqd->thread->io_uring;
+ if (sqd->thread)
+ tctx = sqd->thread->io_uring;
}
} else {
tctx = current->io_uring;
if (ret)
goto err;
- if (sqd)
+ if (sqd) {
mutex_unlock(&sqd->lock);
+ io_put_sq_data(sqd);
+ }
if (copy_to_user(arg, new_count, sizeof(new_count)))
return -EFAULT;
return 0;
err:
- if (sqd)
+ if (sqd) {
mutex_unlock(&sqd->lock);
+ io_put_sq_data(sqd);
+ }
return ret;
}
* Return : windows path string or error
*/
-char *convert_to_nt_pathname(char *filename, char *sharepath)
+char *convert_to_nt_pathname(char *filename)
{
char *ab_pathname;
- int len, name_len;
- name_len = strlen(filename);
- ab_pathname = kmalloc(name_len, GFP_KERNEL);
- if (!ab_pathname)
- return NULL;
-
- ab_pathname[0] = '\\';
- ab_pathname[1] = '\0';
+ if (strlen(filename) == 0) {
+ ab_pathname = kmalloc(2, GFP_KERNEL);
+ ab_pathname[0] = '\\';
+ ab_pathname[1] = '\0';
+ } else {
+ ab_pathname = kstrdup(filename, GFP_KERNEL);
+ if (!ab_pathname)
+ return NULL;
- len = strlen(sharepath);
- if (!strncmp(filename, sharepath, len) && name_len != len) {
- strscpy(ab_pathname, &filename[len], name_len);
ksmbd_conv_path_to_windows(ab_pathname);
}
-
return ab_pathname;
}
*
* Return: converted name on success, otherwise NULL
*/
-char *convert_to_unix_name(struct ksmbd_share_config *share, char *name)
+char *convert_to_unix_name(struct ksmbd_share_config *share, const char *name)
{
int no_slash = 0, name_len, path_len;
char *new_name;
int match_pattern(const char *str, size_t len, const char *pattern);
int ksmbd_validate_filename(char *filename);
int parse_stream_name(char *filename, char **stream_name, int *s_type);
-char *convert_to_nt_pathname(char *filename, char *sharepath);
+char *convert_to_nt_pathname(char *filename);
int get_nlink(struct kstat *st);
void ksmbd_conv_path_to_unix(char *path);
void ksmbd_strip_last_slash(char *path);
void ksmbd_conv_path_to_windows(char *path);
char *ksmbd_extract_sharename(char *treename);
-char *convert_to_unix_name(struct ksmbd_share_config *share, char *name);
+char *convert_to_unix_name(struct ksmbd_share_config *share, const char *name);
#define KSMBD_DIR_INFO_ALIGNMENT 8
struct ksmbd_dir_info;
ret = ksmbd_workqueue_init();
if (ret)
goto err_crypto_destroy;
+
+ pr_warn_once("The ksmbd server is experimental, use at your own risk.\n");
+
return 0;
err_crypto_destroy:
work->compound_pfid = KSMBD_NO_FID;
}
memset((char *)rsp_hdr + 4, 0, sizeof(struct smb2_hdr) + 2);
- rsp_hdr->ProtocolId = rcv_hdr->ProtocolId;
+ rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
rsp_hdr->Command = rcv_hdr->Command;
smb2_get_name(struct ksmbd_share_config *share, const char *src,
const int maxlen, struct nls_table *local_nls)
{
- char *name, *unixname;
+ char *name;
name = smb_strndup_from_utf16(src, maxlen, 1, local_nls);
if (IS_ERR(name)) {
return name;
}
- /* change it to absolute unix name */
ksmbd_conv_path_to_unix(name);
ksmbd_strip_last_slash(name);
-
- unixname = convert_to_unix_name(share, name);
- kfree(name);
- if (!unixname) {
- pr_err("can not convert absolute name\n");
- return ERR_PTR(-ENOMEM);
- }
-
- ksmbd_debug(SMB, "absolute name = %s\n", unixname);
- return unixname;
+ return name;
}
int setup_async_work(struct ksmbd_work *work, void (*fn)(void **), void **arg)
return rc;
}
- rc = ksmbd_vfs_kern_path(name, 0, path, 0);
+ rc = ksmbd_vfs_kern_path(work, name, 0, path, 0);
if (rc) {
pr_err("cannot get linux path (%s), err = %d\n",
name, rc);
struct oplock_info *opinfo;
__le32 *next_ptr = NULL;
int req_op_level = 0, open_flags = 0, may_flags = 0, file_info = 0;
- int rc = 0, len = 0;
+ int rc = 0;
int contxt_cnt = 0, query_disk_id = 0;
int maximal_access_ctxt = 0, posix_ctxt = 0;
int s_type = 0;
goto err_out1;
}
} else {
- len = strlen(share->path);
- ksmbd_debug(SMB, "share path len %d\n", len);
- name = kmalloc(len + 1, GFP_KERNEL);
+ name = kstrdup("", GFP_KERNEL);
if (!name) {
- rsp->hdr.Status = STATUS_NO_MEMORY;
rc = -ENOMEM;
goto err_out1;
}
-
- memcpy(name, share->path, len);
- *(name + len) = '\0';
}
req_op_level = req->RequestedOplockLevel;
goto err_out1;
}
- if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) {
- /*
- * On delete request, instead of following up, need to
- * look the current entity
- */
- rc = ksmbd_vfs_kern_path(name, 0, &path, 1);
- if (!rc) {
+ rc = ksmbd_vfs_kern_path(work, name, LOOKUP_NO_SYMLINKS, &path, 1);
+ if (!rc) {
+ if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) {
/*
* If file exists with under flags, return access
* denied error.
path_put(&path);
goto err_out;
}
- }
- } else {
- if (test_share_config_flag(work->tcon->share_conf,
- KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS)) {
- /*
- * Use LOOKUP_FOLLOW to follow the path of
- * symlink in path buildup
- */
- rc = ksmbd_vfs_kern_path(name, LOOKUP_FOLLOW, &path, 1);
- if (rc) { /* Case for broken link ?*/
- rc = ksmbd_vfs_kern_path(name, 0, &path, 1);
- }
- } else {
- rc = ksmbd_vfs_kern_path(name, 0, &path, 1);
- if (!rc && d_is_symlink(path.dentry)) {
- rc = -EACCES;
- path_put(&path);
- goto err_out;
- }
+ } else if (d_is_symlink(path.dentry)) {
+ rc = -EACCES;
+ path_put(&path);
+ goto err_out;
}
}
if (rc) {
- if (rc == -EACCES) {
- ksmbd_debug(SMB,
- "User does not have right permission\n");
+ if (rc != -ENOENT)
goto err_out;
- }
ksmbd_debug(SMB, "can not get linux path for %s, rc = %d\n",
name, rc);
rc = 0;
rsp->hdr.Status = STATUS_INVALID_PARAMETER;
else if (rc == -EOPNOTSUPP)
rsp->hdr.Status = STATUS_NOT_SUPPORTED;
- else if (rc == -EACCES || rc == -ESTALE)
+ else if (rc == -EACCES || rc == -ESTALE || rc == -EXDEV)
rsp->hdr.Status = STATUS_ACCESS_DENIED;
else if (rc == -ENOENT)
rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID;
path = &fp->filp->f_path;
/* single EA entry is requested with given user.* name */
if (req->InputBufferLength) {
+ if (le32_to_cpu(req->InputBufferLength) <
+ sizeof(struct smb2_ea_info_req))
+ return -EINVAL;
+
ea_req = (struct smb2_ea_info_req *)req->Buffer;
} else {
/* need to send all EAs, if no specific EA is requested*/
return -EACCES;
}
- filename = convert_to_nt_pathname(fp->filename,
- work->tcon->share_conf->path);
+ filename = convert_to_nt_pathname(fp->filename);
if (!filename)
return -ENOMEM;
file_info->NextEntryOffset = cpu_to_le32(next);
}
- if (nbytes) {
+ if (!S_ISDIR(stat.mode)) {
file_info = (struct smb2_file_stream_info *)
&rsp->Buffer[nbytes];
streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName,
"::$DATA", 7, conn->local_nls, 0);
streamlen *= 2;
file_info->StreamNameLength = cpu_to_le32(streamlen);
- file_info->StreamSize = S_ISDIR(stat.mode) ? 0 :
- cpu_to_le64(stat.size);
- file_info->StreamAllocationSize = S_ISDIR(stat.mode) ? 0 :
- cpu_to_le64(stat.size);
+ file_info->StreamSize = 0;
+ file_info->StreamAllocationSize = 0;
nbytes += sizeof(struct smb2_file_stream_info) + streamlen;
}
struct path path;
int rc = 0, len;
int fs_infoclass_size = 0;
- int lookup_flags = 0;
-
- if (test_share_config_flag(share, KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS))
- lookup_flags = LOOKUP_FOLLOW;
- rc = ksmbd_vfs_kern_path(share->path, lookup_flags, &path, 0);
+ rc = kern_path(share->path, LOOKUP_NO_SYMLINKS, &path);
if (rc) {
pr_err("cannot create vfs path\n");
return -EIO;
goto out;
len = strlen(new_name);
- if (new_name[len - 1] != '/') {
+ if (len > 0 && new_name[len - 1] != '/') {
pr_err("not allow base filename in rename\n");
rc = -ESHARE;
goto out;
}
ksmbd_debug(SMB, "new name %s\n", new_name);
- rc = ksmbd_vfs_kern_path(new_name, 0, &path, 1);
- if (rc)
+ rc = ksmbd_vfs_kern_path(work, new_name, LOOKUP_NO_SYMLINKS, &path, 1);
+ if (rc) {
+ if (rc != -ENOENT)
+ goto out;
file_present = false;
- else
+ } else {
path_put(&path);
+ }
if (ksmbd_share_veto_filename(share, new_name)) {
rc = -ENOENT;
}
ksmbd_debug(SMB, "target name is %s\n", target_name);
- rc = ksmbd_vfs_kern_path(link_name, 0, &path, 0);
- if (rc)
+ rc = ksmbd_vfs_kern_path(work, link_name, LOOKUP_NO_SYMLINKS, &path, 0);
+ if (rc) {
+ if (rc != -ENOENT)
+ goto out;
file_present = false;
- else
+ } else {
path_put(&path);
+ }
if (file_info->ReplaceIfExists) {
if (file_present) {
* inode size is retained by backup inode size.
*/
size = i_size_read(inode);
- rc = ksmbd_vfs_truncate(work, NULL, fp, alloc_blks * 512);
+ rc = ksmbd_vfs_truncate(work, fp, alloc_blks * 512);
if (rc) {
pr_err("truncate failed! filename : %s, err %d\n",
fp->filename, rc);
if (inode->i_sb->s_magic != MSDOS_SUPER_MAGIC) {
ksmbd_debug(SMB, "filename : %s truncated to newsize %lld\n",
fp->filename, newsize);
- rc = ksmbd_vfs_truncate(work, NULL, fp, newsize);
+ rc = ksmbd_vfs_truncate(work, fp, newsize);
if (rc) {
ksmbd_debug(SMB, "truncate failed! filename : %s err %d\n",
fp->filename, rc);
return 0;
err_out:
- if (rc == -EACCES || rc == -EPERM)
+ if (rc == -EACCES || rc == -EPERM || rc == -EXDEV)
rsp->hdr.Status = STATUS_ACCESS_DENIED;
else if (rc == -EINVAL)
rsp->hdr.Status = STATUS_INVALID_PARAMETER;
*
* check for valid smb signature and packet direction(request/response)
*
- * Return: 0 on success, otherwise 1
+ * Return: 0 on success, otherwise -EINVAL
*/
int ksmbd_verify_smb_message(struct ksmbd_work *work)
{
- struct smb2_hdr *smb2_hdr = work->request_buf;
+ struct smb2_hdr *smb2_hdr = work->request_buf + work->next_smb2_rcv_hdr_off;
+ struct smb_hdr *hdr;
if (smb2_hdr->ProtocolId == SMB2_PROTO_NUMBER)
return ksmbd_smb2_check_message(work);
- return 0;
+ hdr = work->request_buf;
+ if (*(__le32 *)hdr->Protocol == SMB1_PROTO_NUMBER &&
+ hdr->Command == SMB_COM_NEGOTIATE)
+ return 0;
+
+ return -EINVAL;
}
/**
return BAD_PROT_ID;
}
-#define SMB_COM_NEGOTIATE 0x72
int ksmbd_init_smb_server(struct ksmbd_work *work)
{
struct ksmbd_conn *conn = work->conn;
FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES)
#define SMB1_PROTO_NUMBER cpu_to_le32(0x424d53ff)
+#define SMB_COM_NEGOTIATE 0x72
#define SMB1_CLIENT_GUID_SIZE (16)
struct smb_hdr {
#define SUBMOD_NAME "smb_direct"
#include <linux/kthread.h>
-#include <linux/rwlock.h>
#include <linux/list.h>
#include <linux/mempool.h>
#include <linux/highmem.h>
#include <linux/sched/xacct.h>
#include <linux/crc32c.h>
+#include "../internal.h" /* for vfs_path_lookup */
+
#include "glob.h"
#include "oplock.h"
#include "connection.h"
p++;
} else {
p = NULL;
- pr_err("Invalid path %s\n", path);
}
return p;
}
/**
* ksmbd_vfs_create() - vfs helper for smb create file
* @work: work
- * @name: file name
+ * @name: file name that is relative to share
* @mode: file create mode
*
* Return: 0 on success, otherwise error
struct dentry *dentry;
int err;
- dentry = kern_path_create(AT_FDCWD, name, &path, 0);
+ dentry = ksmbd_vfs_kern_path_create(work, name,
+ LOOKUP_NO_SYMLINKS, &path);
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);
if (err != -ENOENT)
/**
* ksmbd_vfs_mkdir() - vfs helper for smb create directory
* @work: work
- * @name: directory name
+ * @name: directory name that is relative to share
* @mode: directory create mode
*
* Return: 0 on success, otherwise error
struct dentry *dentry;
int err;
- dentry = kern_path_create(AT_FDCWD, name, &path, LOOKUP_DIRECTORY);
+ dentry = ksmbd_vfs_kern_path_create(work, name,
+ LOOKUP_NO_SYMLINKS | LOOKUP_DIRECTORY,
+ &path);
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);
if (err != -EEXIST)
/**
* ksmbd_vfs_remove_file() - vfs helper for smb rmdir or unlink
- * @name: absolute directory or file name
+ * @name: directory or file name that is relative to share
*
* Return: 0 on success, otherwise error
*/
struct path path;
struct dentry *parent;
int err;
- int flags = 0;
if (ksmbd_override_fsids(work))
return -ENOMEM;
- if (test_share_config_flag(work->tcon->share_conf,
- KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS))
- flags = LOOKUP_FOLLOW;
-
- err = kern_path(name, flags, &path);
+ err = ksmbd_vfs_kern_path(work, name, LOOKUP_NO_SYMLINKS, &path, false);
if (err) {
ksmbd_debug(VFS, "can't get %s, err %d\n", name, err);
ksmbd_revert_fsids(work);
/**
* ksmbd_vfs_link() - vfs helper for creating smb hardlink
* @oldname: source file name
- * @newname: hardlink name
+ * @newname: hardlink name that is relative to share
*
* Return: 0 on success, otherwise error
*/
struct path oldpath, newpath;
struct dentry *dentry;
int err;
- int flags = 0;
if (ksmbd_override_fsids(work))
return -ENOMEM;
- if (test_share_config_flag(work->tcon->share_conf,
- KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS))
- flags = LOOKUP_FOLLOW;
-
- err = kern_path(oldname, flags, &oldpath);
+ err = kern_path(oldname, LOOKUP_NO_SYMLINKS, &oldpath);
if (err) {
pr_err("cannot get linux path for %s, err = %d\n",
oldname, err);
goto out1;
}
- dentry = kern_path_create(AT_FDCWD, newname, &newpath,
- flags | LOOKUP_REVAL);
+ dentry = ksmbd_vfs_kern_path_create(work, newname,
+ LOOKUP_NO_SYMLINKS | LOOKUP_REVAL,
+ &newpath);
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);
pr_err("path create err for %s, err %d\n", newname, err);
struct dentry *src_dent, *trap_dent, *src_child;
char *dst_name;
int err;
- int flags;
dst_name = extract_last_component(newname);
- if (!dst_name)
- return -EINVAL;
+ if (!dst_name) {
+ dst_name = newname;
+ newname = "";
+ }
src_dent_parent = dget_parent(fp->filp->f_path.dentry);
src_dent = fp->filp->f_path.dentry;
- flags = LOOKUP_DIRECTORY;
- if (test_share_config_flag(work->tcon->share_conf,
- KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS))
- flags |= LOOKUP_FOLLOW;
-
- err = kern_path(newname, flags, &dst_path);
+ err = ksmbd_vfs_kern_path(work, newname,
+ LOOKUP_NO_SYMLINKS | LOOKUP_DIRECTORY,
+ &dst_path, false);
if (err) {
ksmbd_debug(VFS, "Cannot get path for %s [%d]\n", newname, err);
goto out;
/**
* ksmbd_vfs_truncate() - vfs helper for smb file truncate
* @work: work
- * @name: old filename
* @fid: file id of old file
* @size: truncate to given size
*
* Return: 0 on success, otherwise error
*/
-int ksmbd_vfs_truncate(struct ksmbd_work *work, const char *name,
+int ksmbd_vfs_truncate(struct ksmbd_work *work,
struct ksmbd_file *fp, loff_t size)
{
- struct path path;
int err = 0;
+ struct file *filp;
- if (name) {
- err = kern_path(name, 0, &path);
- if (err) {
- pr_err("cannot get linux path for %s, err %d\n",
- name, err);
- return err;
- }
- err = vfs_truncate(&path, size);
- if (err)
- pr_err("truncate failed for %s err %d\n",
- name, err);
- path_put(&path);
- } else {
- struct file *filp;
-
- filp = fp->filp;
-
- /* Do we need to break any of a levelII oplock? */
- smb_break_all_levII_oplock(work, fp, 1);
+ filp = fp->filp;
- if (!work->tcon->posix_extensions) {
- struct inode *inode = file_inode(filp);
+ /* Do we need to break any of a levelII oplock? */
+ smb_break_all_levII_oplock(work, fp, 1);
- if (size < inode->i_size) {
- err = check_lock_range(filp, size,
- inode->i_size - 1, WRITE);
- } else {
- err = check_lock_range(filp, inode->i_size,
- size - 1, WRITE);
- }
+ if (!work->tcon->posix_extensions) {
+ struct inode *inode = file_inode(filp);
- if (err) {
- pr_err("failed due to lock\n");
- return -EAGAIN;
- }
+ if (size < inode->i_size) {
+ err = check_lock_range(filp, size,
+ inode->i_size - 1, WRITE);
+ } else {
+ err = check_lock_range(filp, inode->i_size,
+ size - 1, WRITE);
}
- err = vfs_truncate(&filp->f_path, size);
- if (err)
- pr_err("truncate failed for filename : %s err %d\n",
- fp->filename, err);
+ if (err) {
+ pr_err("failed due to lock\n");
+ return -EAGAIN;
+ }
}
+ err = vfs_truncate(&filp->f_path, size);
+ if (err)
+ pr_err("truncate failed for filename : %s err %d\n",
+ fp->filename, err);
return err;
}
/**
* ksmbd_vfs_kern_path() - lookup a file and get path info
- * @name: name of file for lookup
+ * @name: file path that is relative to share
* @flags: lookup flags
* @path: if lookup succeed, return path info
* @caseless: caseless filename lookup
*
* Return: 0 on success, otherwise error
*/
-int ksmbd_vfs_kern_path(char *name, unsigned int flags, struct path *path,
- bool caseless)
+int ksmbd_vfs_kern_path(struct ksmbd_work *work, char *name,
+ unsigned int flags, struct path *path, bool caseless)
{
+ struct ksmbd_share_config *share_conf = work->tcon->share_conf;
int err;
- if (name[0] != '/')
- return -EINVAL;
-
- err = kern_path(name, flags, path);
+ flags |= LOOKUP_BENEATH;
+ err = vfs_path_lookup(share_conf->vfs_path.dentry,
+ share_conf->vfs_path.mnt,
+ name,
+ flags,
+ path);
if (!err)
return 0;
return -ENOMEM;
path_len = strlen(filepath);
- remain_len = path_len - 1;
+ remain_len = path_len;
- err = kern_path("/", flags, &parent);
- if (err)
- goto out;
+ parent = share_conf->vfs_path;
+ path_get(&parent);
while (d_can_lookup(parent.dentry)) {
char *filename = filepath + path_len - remain_len;
err = ksmbd_vfs_lookup_in_dir(&parent, filename,
filename_len);
- if (err) {
- path_put(&parent);
+ path_put(&parent);
+ if (err)
goto out;
- }
- path_put(&parent);
next[0] = '\0';
- err = kern_path(filepath, flags, &parent);
+ err = vfs_path_lookup(share_conf->vfs_path.dentry,
+ share_conf->vfs_path.mnt,
+ filepath,
+ flags,
+ &parent);
if (err)
goto out;
-
- if (is_last) {
- path->mnt = parent.mnt;
- path->dentry = parent.dentry;
+ else if (is_last) {
+ *path = parent;
goto out;
}
return err;
}
+struct dentry *ksmbd_vfs_kern_path_create(struct ksmbd_work *work,
+ const char *name,
+ unsigned int flags,
+ struct path *path)
+{
+ char *abs_name;
+ struct dentry *dent;
+
+ abs_name = convert_to_unix_name(work->tcon->share_conf, name);
+ if (!abs_name)
+ return ERR_PTR(-ENOMEM);
+
+ dent = kern_path_create(AT_FDCWD, abs_name, path, flags);
+ kfree(abs_name);
+ return dent;
+}
+
int ksmbd_vfs_remove_acl_xattrs(struct user_namespace *user_ns,
struct dentry *dentry)
{
int ksmbd_vfs_getattr(struct path *path, struct kstat *stat);
int ksmbd_vfs_fp_rename(struct ksmbd_work *work, struct ksmbd_file *fp,
char *newname);
-int ksmbd_vfs_truncate(struct ksmbd_work *work, const char *name,
+int ksmbd_vfs_truncate(struct ksmbd_work *work,
struct ksmbd_file *fp, loff_t size);
struct srv_copychunk;
int ksmbd_vfs_copy_file_ranges(struct ksmbd_work *work,
size_t *xattr_stream_name_size, int s_type);
int ksmbd_vfs_remove_xattr(struct user_namespace *user_ns,
struct dentry *dentry, char *attr_name);
-int ksmbd_vfs_kern_path(char *name, unsigned int flags, struct path *path,
+int ksmbd_vfs_kern_path(struct ksmbd_work *work,
+ char *name, unsigned int flags, struct path *path,
bool caseless);
+struct dentry *ksmbd_vfs_kern_path_create(struct ksmbd_work *work,
+ const char *name,
+ unsigned int flags,
+ struct path *path);
int ksmbd_vfs_empty_dir(struct ksmbd_file *fp);
void ksmbd_vfs_set_fadvise(struct file *filp, __le32 option);
int ksmbd_vfs_zero_data(struct ksmbd_work *work, struct ksmbd_file *fp,
static inline bool
svcxdr_encode_owner(struct xdr_stream *xdr, const struct xdr_netobj *obj)
{
- unsigned int quadlen = XDR_QUADLEN(obj->len);
- __be32 *p;
-
- if (xdr_stream_encode_u32(xdr, obj->len) < 0)
- return false;
- p = xdr_reserve_space(xdr, obj->len);
- if (!p)
+ if (obj->len > XDR_MAX_NETOBJ)
return false;
- p[quadlen - 1] = 0; /* XDR pad */
- memcpy(p, obj->data, obj->len);
-
- return true;
+ return xdr_stream_encode_opaque(xdr, obj->data, obj->len) > 0;
}
#endif /* _LOCKD_SVCXDR_H_ */
}
static __be32 nfsd4_match_existing_connection(struct svc_rqst *rqst,
- struct nfsd4_session *session, u32 req)
+ struct nfsd4_session *session, u32 req, struct nfsd4_conn **conn)
{
struct nfs4_client *clp = session->se_client;
struct svc_xprt *xpt = rqst->rq_xprt;
else
status = nfserr_inval;
spin_unlock(&clp->cl_lock);
+ if (status == nfs_ok && conn)
+ *conn = c;
return status;
}
status = nfserr_wrong_cred;
if (!nfsd4_mach_creds_match(session->se_client, rqstp))
goto out;
- status = nfsd4_match_existing_connection(rqstp, session, bcts->dir);
- if (status == nfs_ok || status == nfserr_inval)
+ status = nfsd4_match_existing_connection(rqstp, session,
+ bcts->dir, &conn);
+ if (status == nfs_ok) {
+ if (bcts->dir == NFS4_CDFC4_FORE_OR_BOTH ||
+ bcts->dir == NFS4_CDFC4_BACK)
+ conn->cn_flags |= NFS4_CDFC4_BACK;
+ nfsd4_probe_callback(session->se_client);
+ goto out;
+ }
+ if (status == nfserr_inval)
goto out;
status = nfsd4_map_bcts_dir(&bcts->dir);
if (status)
oi = OCFS2_I(inode);
oi->ip_dir_lock_gen++;
mlog(0, "generation: %u\n", oi->ip_dir_lock_gen);
- goto out;
+ goto out_forget;
}
if (!S_ISREG(inode->i_mode))
filemap_fdatawait(mapping);
}
+out_forget:
forget_all_cached_acls(inode);
out:
#include <linux/buffer_head.h>
#include "qnx4.h"
+/*
+ * A qnx4 directory entry is an inode entry or link info
+ * depending on the status field in the last byte. The
+ * first byte is where the name start either way, and a
+ * zero means it's empty.
+ *
+ * Also, due to a bug in gcc, we don't want to use the
+ * real (differently sized) name arrays in the inode and
+ * link entries, but always the 'de_name[]' one in the
+ * fake struct entry.
+ *
+ * See
+ *
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c6
+ *
+ * for details, but basically gcc will take the size of the
+ * 'name' array from one of the used union entries randomly.
+ *
+ * This use of 'de_name[]' (48 bytes) avoids the false positive
+ * warnings that would happen if gcc decides to use 'inode.di_name'
+ * (16 bytes) even when the pointer and size were to come from
+ * 'link.dl_name' (48 bytes).
+ *
+ * In all cases the actual name pointer itself is the same, it's
+ * only the gcc internal 'what is the size of this field' logic
+ * that can get confused.
+ */
+union qnx4_directory_entry {
+ struct {
+ const char de_name[48];
+ u8 de_pad[15];
+ u8 de_status;
+ };
+ struct qnx4_inode_entry inode;
+ struct qnx4_link_info link;
+};
+
static int qnx4_readdir(struct file *file, struct dir_context *ctx)
{
struct inode *inode = file_inode(file);
unsigned int offset;
struct buffer_head *bh;
- struct qnx4_inode_entry *de;
- struct qnx4_link_info *le;
unsigned long blknum;
int ix, ino;
int size;
}
ix = (ctx->pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
for (; ix < QNX4_INODES_PER_BLOCK; ix++, ctx->pos += QNX4_DIR_ENTRY_SIZE) {
+ union qnx4_directory_entry *de;
+
offset = ix * QNX4_DIR_ENTRY_SIZE;
- de = (struct qnx4_inode_entry *) (bh->b_data + offset);
- if (!de->di_fname[0])
+ de = (union qnx4_directory_entry *) (bh->b_data + offset);
+
+ if (!de->de_name[0])
continue;
- if (!(de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK)))
+ if (!(de->de_status & (QNX4_FILE_USED|QNX4_FILE_LINK)))
continue;
- if (!(de->di_status & QNX4_FILE_LINK))
- size = QNX4_SHORT_NAME_MAX;
- else
- size = QNX4_NAME_MAX;
- size = strnlen(de->di_fname, size);
- QNX4DEBUG((KERN_INFO "qnx4_readdir:%.*s\n", size, de->di_fname));
- if (!(de->di_status & QNX4_FILE_LINK))
+ if (!(de->de_status & QNX4_FILE_LINK)) {
+ size = sizeof(de->inode.di_fname);
ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
- else {
- le = (struct qnx4_link_info*)de;
- ino = ( le32_to_cpu(le->dl_inode_blk) - 1 ) *
+ } else {
+ size = sizeof(de->link.dl_fname);
+ ino = ( le32_to_cpu(de->link.dl_inode_blk) - 1 ) *
QNX4_INODES_PER_BLOCK +
- le->dl_inode_ndx;
+ de->link.dl_inode_ndx;
}
- if (!dir_emit(ctx, de->di_fname, size, ino, DT_UNKNOWN)) {
+ size = strnlen(de->de_name, size);
+ QNX4DEBUG((KERN_INFO "qnx4_readdir:%.*s\n", size, name));
+ if (!dir_emit(ctx, de->de_name, size, ino, DT_UNKNOWN)) {
brelse(bh);
return 0;
}
/* SPDX-License-Identifier: LGPL-2.1+ */
/*
- * fs/cifs/smbfsctl.h: SMB, CIFS, SMB2 FSCTL definitions
+ * SMB, CIFS, SMB2 FSCTL definitions
*
* Copyright (c) International Business Machines Corp., 2002,2013
* Author(s): Steve French (sfrench@us.ibm.com)
#define VBOXSF_SUPER_MAGIC 0x786f4256 /* 'VBox' little endian */
-#define VBSF_MOUNT_SIGNATURE_BYTE_0 ('\000')
-#define VBSF_MOUNT_SIGNATURE_BYTE_1 ('\377')
-#define VBSF_MOUNT_SIGNATURE_BYTE_2 ('\376')
-#define VBSF_MOUNT_SIGNATURE_BYTE_3 ('\375')
+static const unsigned char VBSF_MOUNT_SIGNATURE[4] = "\000\377\376\375";
static int follow_symlinks;
module_param(follow_symlinks, int, 0444);
static int vboxsf_parse_monolithic(struct fs_context *fc, void *data)
{
- unsigned char *options = data;
-
- if (options && options[0] == VBSF_MOUNT_SIGNATURE_BYTE_0 &&
- options[1] == VBSF_MOUNT_SIGNATURE_BYTE_1 &&
- options[2] == VBSF_MOUNT_SIGNATURE_BYTE_2 &&
- options[3] == VBSF_MOUNT_SIGNATURE_BYTE_3) {
+ if (data && !memcmp(data, VBSF_MOUNT_SIGNATURE, 4)) {
vbg_err("vboxsf: Old binary mount data not supported, remove obsolete mount.vboxsf and/or update your VBoxService.\n");
return -EINVAL;
}
* (level 0) and ascending to the root node (level 'num_levels - 1').
* Then at the end (level 'num_levels'), calculate the root hash.
*/
- blocks = (inode->i_size + params->block_size - 1) >>
+ blocks = ((u64)inode->i_size + params->block_size - 1) >>
params->log_blocksize;
for (level = 0; level <= params->num_levels; level++) {
err = build_merkle_tree_level(filp, level, blocks, params,
*/
/* Compute number of levels and the number of blocks in each level */
- blocks = (inode->i_size + params->block_size - 1) >> log_blocksize;
+ blocks = ((u64)inode->i_size + params->block_size - 1) >> log_blocksize;
pr_debug("Data is %lld bytes (%llu blocks)\n", inode->i_size, blocks);
while (blocks > 1) {
if (params->num_levels >= FS_VERITY_MAX_LEVELS) {
}
#endif
-#ifndef acpi_os_memmap
-static inline void __iomem *acpi_os_memmap(acpi_physical_address phys,
- acpi_size size)
-{
- return ioremap_cache(phys, size);
-}
-#endif
-
extern bool acpi_permanent_mmap;
void __iomem __ref
port &= IO_SPACE_LIMIT;
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
}
-#define __pci_ioport_unmap __pci_ioport_unmap
-static inline void __pci_ioport_unmap(void __iomem *p)
-{
- uintptr_t start = (uintptr_t) PCI_IOBASE;
- uintptr_t addr = (uintptr_t) p;
-
- if (addr >= start && addr < start + IO_SPACE_LIMIT)
- return;
- iounmap(p);
-}
+#define ARCH_HAS_GENERIC_IOPORT_MAP
#endif
#ifndef ioport_unmap
#endif /* CONFIG_HAS_IOPORT_MAP */
#ifndef CONFIG_GENERIC_IOMAP
-struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
-
-#ifndef __pci_ioport_unmap
-static inline void __pci_ioport_unmap(void __iomem *p) {}
-#endif
-
#ifndef pci_iounmap
-#define pci_iounmap pci_iounmap
-static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
-{
- __pci_ioport_unmap(p);
-}
+#define ARCH_WANTS_GENERIC_PCI_IOUNMAP
+#endif
#endif
-#endif /* CONFIG_GENERIC_IOMAP */
#ifndef xlate_dev_mem_ptr
#define xlate_dev_mem_ptr xlate_dev_mem_ptr
}
#endif
-#ifdef CONFIG_PCI
-/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
-struct pci_dev;
-extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
-#elif defined(CONFIG_GENERIC_IOMAP)
-struct pci_dev;
-static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{ }
-#endif
-
#include <asm-generic/pci_iomap.h>
#endif
return hv_vp_index[cpu_number];
}
-static inline int cpumask_to_vpset(struct hv_vpset *vpset,
- const struct cpumask *cpus)
+static inline int __cpumask_to_vpset(struct hv_vpset *vpset,
+ const struct cpumask *cpus,
+ bool exclude_self)
{
int cpu, vcpu, vcpu_bank, vcpu_offset, nr_bank = 1;
+ int this_cpu = smp_processor_id();
/* valid_bank_mask can represent up to 64 banks */
if (hv_max_vp_index / 64 >= 64)
* Some banks may end up being empty but this is acceptable.
*/
for_each_cpu(cpu, cpus) {
+ if (exclude_self && cpu == this_cpu)
+ continue;
vcpu = hv_cpu_number_to_vp_number(cpu);
if (vcpu == VP_INVAL)
return -1;
return nr_bank;
}
+static inline int cpumask_to_vpset(struct hv_vpset *vpset,
+ const struct cpumask *cpus)
+{
+ return __cpumask_to_vpset(vpset, cpus, false);
+}
+
+static inline int cpumask_to_vpset_noself(struct hv_vpset *vpset,
+ const struct cpumask *cpus)
+{
+ WARN_ON_ONCE(preemptible());
+ return __cpumask_to_vpset(vpset, cpus, true);
+}
+
void hyperv_report_panic(struct pt_regs *regs, long err, bool in_die);
bool hv_is_hyperv_initialized(void);
bool hv_is_hibernation_supported(void);
extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar,
unsigned long offset,
unsigned long maxlen);
+extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
/* Create a virtual mapping cookie for a port on a given PCI device.
* Do not call this directly, it exists to make it easier for architectures
* to override */
{
return NULL;
}
+static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{ }
#endif
#endif /* __ASM_GENERIC_PCI_IOMAP_H */
* GCC 4.5 and later have a 32 bytes section alignment for structures.
* Except GCC 4.9, that feels the need to align on 64 bytes.
*/
-#if __GNUC__ == 4 && __GNUC_MINOR__ == 9
-#define STRUCT_ALIGNMENT 64
-#else
#define STRUCT_ALIGNMENT 32
-#endif
#define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT)
/*
int kvm_arm_pmu_v3_has_attr(struct kvm_vcpu *vcpu,
struct kvm_device_attr *attr);
int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu);
-int kvm_pmu_probe_pmuver(void);
#else
struct kvm_pmu {
};
return 0;
}
-static inline int kvm_pmu_probe_pmuver(void) { return 0xf; }
-
#endif
#endif
struct buffer_head *__bread_gfp(struct block_device *,
sector_t block, unsigned size, gfp_t gfp);
void invalidate_bh_lrus(void);
-void invalidate_bh_lrus_cpu(int cpu);
+void invalidate_bh_lrus_cpu(void);
bool has_bh_in_lru(int cpu, void *dummy);
struct buffer_head *alloc_buffer_head(gfp_t gfp_flags);
void free_buffer_head(struct buffer_head * bh);
static inline void invalidate_inode_buffers(struct inode *inode) {}
static inline int remove_inode_buffers(struct inode *inode) { return 1; }
static inline int sync_mapping_buffers(struct address_space *mapping) { return 0; }
-static inline void invalidate_bh_lrus_cpu(int cpu) {}
+static inline void invalidate_bh_lrus_cpu(void) {}
static inline bool has_bh_in_lru(int cpu, void *dummy) { return false; }
#define buffer_heads_over_limit 0
* sock_cgroup_data is embedded at sock->sk_cgrp_data and contains
* per-socket cgroup information except for memcg association.
*
- * On legacy hierarchies, net_prio and net_cls controllers directly set
- * attributes on each sock which can then be tested by the network layer.
- * On the default hierarchy, each sock is associated with the cgroup it was
- * created in and the networking layer can match the cgroup directly.
- *
- * To avoid carrying all three cgroup related fields separately in sock,
- * sock_cgroup_data overloads (prioidx, classid) and the cgroup pointer.
- * On boot, sock_cgroup_data records the cgroup that the sock was created
- * in so that cgroup2 matches can be made; however, once either net_prio or
- * net_cls starts being used, the area is overridden to carry prioidx and/or
- * classid. The two modes are distinguished by whether the lowest bit is
- * set. Clear bit indicates cgroup pointer while set bit prioidx and
- * classid.
- *
- * While userland may start using net_prio or net_cls at any time, once
- * either is used, cgroup2 matching no longer works. There is no reason to
- * mix the two and this is in line with how legacy and v2 compatibility is
- * handled. On mode switch, cgroup references which are already being
- * pointed to by socks may be leaked. While this can be remedied by adding
- * synchronization around sock_cgroup_data, given that the number of leaked
- * cgroups is bound and highly unlikely to be high, this seems to be the
- * better trade-off.
+ * On legacy hierarchies, net_prio and net_cls controllers directly
+ * set attributes on each sock which can then be tested by the network
+ * layer. On the default hierarchy, each sock is associated with the
+ * cgroup it was created in and the networking layer can match the
+ * cgroup directly.
*/
struct sock_cgroup_data {
- union {
-#ifdef __LITTLE_ENDIAN
- struct {
- u8 is_data : 1;
- u8 no_refcnt : 1;
- u8 unused : 6;
- u8 padding;
- u16 prioidx;
- u32 classid;
- } __packed;
-#else
- struct {
- u32 classid;
- u16 prioidx;
- u8 padding;
- u8 unused : 6;
- u8 no_refcnt : 1;
- u8 is_data : 1;
- } __packed;
+ struct cgroup *cgroup; /* v2 */
+#ifdef CONFIG_CGROUP_NET_CLASSID
+ u32 classid; /* v1 */
+#endif
+#ifdef CONFIG_CGROUP_NET_PRIO
+ u16 prioidx; /* v1 */
#endif
- u64 val;
- };
};
-/*
- * There's a theoretical window where the following accessors race with
- * updaters and return part of the previous pointer as the prioidx or
- * classid. Such races are short-lived and the result isn't critical.
- */
static inline u16 sock_cgroup_prioidx(const struct sock_cgroup_data *skcd)
{
- /* fallback to 1 which is always the ID of the root cgroup */
- return (skcd->is_data & 1) ? skcd->prioidx : 1;
+#ifdef CONFIG_CGROUP_NET_PRIO
+ return READ_ONCE(skcd->prioidx);
+#else
+ return 1;
+#endif
}
static inline u32 sock_cgroup_classid(const struct sock_cgroup_data *skcd)
{
- /* fallback to 0 which is the unconfigured default classid */
- return (skcd->is_data & 1) ? skcd->classid : 0;
+#ifdef CONFIG_CGROUP_NET_CLASSID
+ return READ_ONCE(skcd->classid);
+#else
+ return 0;
+#endif
}
-/*
- * If invoked concurrently, the updaters may clobber each other. The
- * caller is responsible for synchronization.
- */
static inline void sock_cgroup_set_prioidx(struct sock_cgroup_data *skcd,
u16 prioidx)
{
- struct sock_cgroup_data skcd_buf = {{ .val = READ_ONCE(skcd->val) }};
-
- if (sock_cgroup_prioidx(&skcd_buf) == prioidx)
- return;
-
- if (!(skcd_buf.is_data & 1)) {
- skcd_buf.val = 0;
- skcd_buf.is_data = 1;
- }
-
- skcd_buf.prioidx = prioidx;
- WRITE_ONCE(skcd->val, skcd_buf.val); /* see sock_cgroup_ptr() */
+#ifdef CONFIG_CGROUP_NET_PRIO
+ WRITE_ONCE(skcd->prioidx, prioidx);
+#endif
}
static inline void sock_cgroup_set_classid(struct sock_cgroup_data *skcd,
u32 classid)
{
- struct sock_cgroup_data skcd_buf = {{ .val = READ_ONCE(skcd->val) }};
-
- if (sock_cgroup_classid(&skcd_buf) == classid)
- return;
-
- if (!(skcd_buf.is_data & 1)) {
- skcd_buf.val = 0;
- skcd_buf.is_data = 1;
- }
-
- skcd_buf.classid = classid;
- WRITE_ONCE(skcd->val, skcd_buf.val); /* see sock_cgroup_ptr() */
+#ifdef CONFIG_CGROUP_NET_CLASSID
+ WRITE_ONCE(skcd->classid, classid);
+#endif
}
#else /* CONFIG_SOCK_CGROUP_DATA */
*/
#ifdef CONFIG_SOCK_CGROUP_DATA
-#if defined(CONFIG_CGROUP_NET_PRIO) || defined(CONFIG_CGROUP_NET_CLASSID)
-extern spinlock_t cgroup_sk_update_lock;
-#endif
-
-void cgroup_sk_alloc_disable(void);
void cgroup_sk_alloc(struct sock_cgroup_data *skcd);
void cgroup_sk_clone(struct sock_cgroup_data *skcd);
void cgroup_sk_free(struct sock_cgroup_data *skcd);
static inline struct cgroup *sock_cgroup_ptr(struct sock_cgroup_data *skcd)
{
-#if defined(CONFIG_CGROUP_NET_PRIO) || defined(CONFIG_CGROUP_NET_CLASSID)
- unsigned long v;
-
- /*
- * @skcd->val is 64bit but the following is safe on 32bit too as we
- * just need the lower ulong to be written and read atomically.
- */
- v = READ_ONCE(skcd->val);
-
- if (v & 3)
- return &cgrp_dfl_root.cgrp;
-
- return (struct cgroup *)(unsigned long)v ?: &cgrp_dfl_root.cgrp;
-#else
- return (struct cgroup *)(unsigned long)skcd->val;
-#endif
+ return skcd->cgroup;
}
#else /* CONFIG_CGROUP_DATA */
#define __no_sanitize_coverage
#endif
-/*
- * Not all versions of clang implement the type-generic versions
- * of the builtin overflow checkers. Fortunately, clang implements
- * __has_builtin allowing us to avoid awkward version
- * checks. Unfortunately, we don't know which version of gcc clang
- * pretends to be, so the macro may or may not be defined.
- */
-#if __has_builtin(__builtin_mul_overflow) && \
- __has_builtin(__builtin_add_overflow) && \
- __has_builtin(__builtin_sub_overflow)
-#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
-#endif
-
#if __has_feature(shadow_call_stack)
# define __noscs __attribute__((__no_sanitize__("shadow-call-stack")))
#endif
#if GCC_VERSION >= 70000
#define KASAN_ABI_VERSION 5
-#elif GCC_VERSION >= 50000
+#else
#define KASAN_ABI_VERSION 4
-#elif GCC_VERSION >= 40902
-#define KASAN_ABI_VERSION 3
#endif
#if __has_attribute(__no_sanitize_address__)
#define __no_sanitize_coverage
#endif
-#if GCC_VERSION >= 50100
-#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
-#endif
-
/*
* Turn individual warnings and errors on and off locally, depending
* on version.
(typeof(ptr)) (__ptr + (off)); })
#endif
+#define absolute_pointer(val) RELOC_HIDE((void *)(val), 0)
+
#ifndef OPTIMIZER_HIDE_VAR
/* Make the optimizer believe the variable can be manipulated arbitrarily. */
#define OPTIMIZER_HIDE_VAR(var) \
*/
/*
- * __has_attribute is supported on gcc >= 5, clang >= 2.9 and icc >= 17.
- * In the meantime, to support gcc < 5, we implement __has_attribute
- * by hand.
- */
-#ifndef __has_attribute
-# define __has_attribute(x) __GCC4_has_attribute_##x
-# define __GCC4_has_attribute___assume_aligned__ 1
-# define __GCC4_has_attribute___copy__ 0
-# define __GCC4_has_attribute___designated_init__ 0
-# define __GCC4_has_attribute___error__ 1
-# define __GCC4_has_attribute___externally_visible__ 1
-# define __GCC4_has_attribute___no_caller_saved_registers__ 0
-# define __GCC4_has_attribute___noclone__ 1
-# define __GCC4_has_attribute___no_profile_instrument_function__ 0
-# define __GCC4_has_attribute___nonstring__ 0
-# define __GCC4_has_attribute___no_sanitize_address__ 1
-# define __GCC4_has_attribute___no_sanitize_undefined__ 1
-# define __GCC4_has_attribute___no_sanitize_coverage__ 0
-# define __GCC4_has_attribute___fallthrough__ 0
-# define __GCC4_has_attribute___warning__ 1
-#endif
-
-/*
* gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alias-function-attribute
*/
#define __alias(symbol) __attribute__((__alias__(#symbol)))
* compiler should see some alignment anyway, when the return value is
* massaged by 'flags = ptr & 3; ptr &= ~3;').
*
- * Optional: only supported since gcc >= 4.9
* Optional: not supported by icc
*
* gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-assume_005faligned-function-attribute
/* SPDX-License-Identifier: GPL-2.0
- * Copyright 2019-2021 NXP Semiconductors
+ * Copyright 2019-2021 NXP
*/
#ifndef _NET_DSA_TAG_OCELOT_H
}
void irq_domain_free_fwnode(struct fwnode_handle *fwnode);
-struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
+struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, unsigned int size,
irq_hw_number_t hwirq_max, int direct_max,
const struct irq_domain_ops *ops,
void *host_data);
unsigned long mmu_notifier_range_start;
unsigned long mmu_notifier_range_end;
#endif
- long tlbs_dirty;
struct list_head devices;
u64 manual_dirty_log_protect;
struct dentry *debugfs_dentry;
return NULL;
}
-static inline int kvm_vcpu_get_idx(struct kvm_vcpu *vcpu)
-{
- return vcpu->vcpu_idx;
-}
-
#define kvm_for_each_memslot(memslot, slots) \
for (memslot = &slots->memslots[0]; \
memslot < slots->memslots + slots->used_slots; memslot++) \
/* Clears up any memory if needed */
void (*remove)(struct mdio_device *mdiodev);
+
+ /* Quiesces the device on system shutdown, turns off interrupts etc */
+ void (*shutdown)(struct mdio_device *mdiodev);
};
static inline struct mdio_driver *
int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
void memblock_free_all(void);
+void memblock_free_ptr(void *ptr, size_t size);
void reset_node_managed_pages(pg_data_t *pgdat);
void reset_all_zones_managed_pages(void);
*/
#define MIGRATEPAGE_SUCCESS 0
+/*
+ * Keep sync with:
+ * - macro MIGRATE_REASON in include/trace/events/migrate.h
+ * - migrate_reason_names[MR_TYPES] in mm/debug.c
+ */
enum migrate_reason {
MR_COMPACTION,
MR_MEMORY_FAILURE,
MR_TYPES
};
-/* In mm/debug.c; also keep sync with include/trace/events/migrate.h */
extern const char *migrate_reason_names[MR_TYPES];
#ifdef CONFIG_MIGRATION
up_read(&mm->mmap_lock);
}
-static inline bool mmap_read_trylock_non_owner(struct mm_struct *mm)
-{
- if (mmap_read_trylock(mm)) {
- rwsem_release(&mm->mmap_lock.dep_map, _RET_IP_);
- return true;
- }
- return false;
-}
-
static inline void mmap_read_unlock_non_owner(struct mm_struct *mm)
{
__mmap_lock_trace_released(mm, false);
return -EOPNOTSUPP;
}
+static inline int nvmem_cell_read_variable_le_u32(struct device *dev,
+ const char *cell_id,
+ u32 *val)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int nvmem_cell_read_variable_le_u64(struct device *dev,
+ const char *cell_id,
+ u64 *val)
+{
+ return -EOPNOTSUPP;
+}
+
static inline struct nvmem_device *nvmem_device_get(struct device *dev,
const char *name)
{
#include <linux/limits.h>
/*
- * In the fallback code below, we need to compute the minimum and
- * maximum values representable in a given type. These macros may also
- * be useful elsewhere, so we provide them outside the
- * COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW block.
- *
- * It would seem more obvious to do something like
+ * We need to compute the minimum and maximum values representable in a given
+ * type. These macros may also be useful elsewhere. It would seem more obvious
+ * to do something like:
*
* #define type_min(T) (T)(is_signed_type(T) ? (T)1 << (8*sizeof(T)-1) : 0)
* #define type_max(T) (T)(is_signed_type(T) ? ((T)1 << (8*sizeof(T)-1)) - 1 : ~(T)0)
return unlikely(overflow);
}
-#ifdef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW
/*
* For simplicity and code hygiene, the fallback code below insists on
* a, b and *d having the same type (similar to the min() and max()
__builtin_mul_overflow(__a, __b, __d); \
}))
-#else
-
-
-/* Checking for unsigned overflow is relatively easy without causing UB. */
-#define __unsigned_add_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = __a + __b; \
- *__d < __a; \
-})
-#define __unsigned_sub_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = __a - __b; \
- __a < __b; \
-})
-/*
- * If one of a or b is a compile-time constant, this avoids a division.
- */
-#define __unsigned_mul_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = __a * __b; \
- __builtin_constant_p(__b) ? \
- __b > 0 && __a > type_max(typeof(__a)) / __b : \
- __a > 0 && __b > type_max(typeof(__b)) / __a; \
-})
-
-/*
- * For signed types, detecting overflow is much harder, especially if
- * we want to avoid UB. But the interface of these macros is such that
- * we must provide a result in *d, and in fact we must produce the
- * result promised by gcc's builtins, which is simply the possibly
- * wrapped-around value. Fortunately, we can just formally do the
- * operations in the widest relevant unsigned type (u64) and then
- * truncate the result - gcc is smart enough to generate the same code
- * with and without the (u64) casts.
- */
-
-/*
- * Adding two signed integers can overflow only if they have the same
- * sign, and overflow has happened iff the result has the opposite
- * sign.
- */
-#define __signed_add_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = (u64)__a + (u64)__b; \
- (((~(__a ^ __b)) & (*__d ^ __a)) \
- & type_min(typeof(__a))) != 0; \
-})
-
-/*
- * Subtraction is similar, except that overflow can now happen only
- * when the signs are opposite. In this case, overflow has happened if
- * the result has the opposite sign of a.
- */
-#define __signed_sub_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = (u64)__a - (u64)__b; \
- ((((__a ^ __b)) & (*__d ^ __a)) \
- & type_min(typeof(__a))) != 0; \
-})
-
-/*
- * Signed multiplication is rather hard. gcc always follows C99, so
- * division is truncated towards 0. This means that we can write the
- * overflow check like this:
- *
- * (a > 0 && (b > MAX/a || b < MIN/a)) ||
- * (a < -1 && (b > MIN/a || b < MAX/a) ||
- * (a == -1 && b == MIN)
- *
- * The redundant casts of -1 are to silence an annoying -Wtype-limits
- * (included in -Wextra) warning: When the type is u8 or u16, the
- * __b_c_e in check_mul_overflow obviously selects
- * __unsigned_mul_overflow, but unfortunately gcc still parses this
- * code and warns about the limited range of __b.
- */
-
-#define __signed_mul_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- typeof(a) __tmax = type_max(typeof(a)); \
- typeof(a) __tmin = type_min(typeof(a)); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = (u64)__a * (u64)__b; \
- (__b > 0 && (__a > __tmax/__b || __a < __tmin/__b)) || \
- (__b < (typeof(__b))-1 && (__a > __tmin/__b || __a < __tmax/__b)) || \
- (__b == (typeof(__b))-1 && __a == __tmin); \
-})
-
-
-#define check_add_overflow(a, b, d) __must_check_overflow( \
- __builtin_choose_expr(is_signed_type(typeof(a)), \
- __signed_add_overflow(a, b, d), \
- __unsigned_add_overflow(a, b, d)))
-
-#define check_sub_overflow(a, b, d) __must_check_overflow( \
- __builtin_choose_expr(is_signed_type(typeof(a)), \
- __signed_sub_overflow(a, b, d), \
- __unsigned_sub_overflow(a, b, d)))
-
-#define check_mul_overflow(a, b, d) __must_check_overflow( \
- __builtin_choose_expr(is_signed_type(typeof(a)), \
- __signed_mul_overflow(a, b, d), \
- __unsigned_mul_overflow(a, b, d)))
-
-#endif /* COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW */
-
/** check_shl_overflow() - Calculate a left-shifted value and check overflow
*
* @a: Value to be shifted
/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright (c) 2016-2018, NXP Semiconductors
+ * Copyright 2016-2018 NXP
* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
#ifndef _LINUX_PACKING_H
static inline int arm_pmu_acpi_probe(armpmu_init_fn init_fn) { return 0; }
#endif
+#ifdef CONFIG_KVM
+void kvm_host_pmu_init(struct arm_pmu *pmu);
+#else
+#define kvm_host_pmu_init(x) do { } while(0)
+#endif
+
/* Internal functions only for core arm_pmu code */
struct arm_pmu *armpmu_alloc(void);
struct arm_pmu *armpmu_alloc_atomic(void);
#include <linux/mm.h>
+#define ARCH_DEFAULT_PKEY 0
+
#ifdef CONFIG_ARCH_HAS_PKEYS
#include <asm/pkeys.h>
#else /* ! CONFIG_ARCH_HAS_PKEYS */
mce_whole_page : 1,
__mce_reserved : 62;
struct callback_head mce_kill_me;
+ int mce_count;
#endif
#ifdef CONFIG_KRETPROBES
WRITE_ONCE(newsk->prev, prev);
WRITE_ONCE(next->prev, newsk);
WRITE_ONCE(prev->next, newsk);
- list->qlen++;
+ WRITE_ONCE(list->qlen, list->qlen + 1);
}
static inline void __skb_queue_splice(const struct sk_buff_head *list,
mem_cgroup_handle_over_high();
blkcg_maybe_throttle_current();
+
+ rseq_handle_notify_resume(NULL, regs);
}
/*
ITER_DISCARD,
};
+struct iov_iter_state {
+ size_t iov_offset;
+ size_t count;
+ unsigned long nr_segs;
+};
+
struct iov_iter {
u8 iter_type;
bool data_source;
};
loff_t xarray_start;
};
- size_t truncated;
};
static inline enum iter_type iov_iter_type(const struct iov_iter *i)
return i->iter_type;
}
+static inline void iov_iter_save_state(struct iov_iter *iter,
+ struct iov_iter_state *state)
+{
+ state->iov_offset = iter->iov_offset;
+ state->count = iter->count;
+ state->nr_segs = iter->nr_segs;
+}
+
static inline bool iter_is_iovec(const struct iov_iter *i)
{
return iov_iter_type(i) == ITER_IOVEC;
ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages,
size_t maxsize, size_t *start);
int iov_iter_npages(const struct iov_iter *i, int maxpages);
+void iov_iter_restore(struct iov_iter *i, struct iov_iter_state *state);
const void *dup_iter(struct iov_iter *new, struct iov_iter *old, gfp_t flags);
* conversion in assignement is by definition greater than all
* values of size_t, including old i->count.
*/
- if (i->count > count) {
- i->truncated += i->count - count;
+ if (i->count > count)
i->count = count;
- }
}
/*
*/
static inline void iov_iter_reexpand(struct iov_iter *i, size_t count)
{
- i->truncated -= count - i->count;
i->count = count;
}
#define HCD_FLAG_RH_RUNNING 5 /* root hub is running? */
#define HCD_FLAG_DEAD 6 /* controller has died? */
#define HCD_FLAG_INTF_AUTHORIZED 7 /* authorize interfaces? */
+#define HCD_FLAG_DEFER_RH_REGISTER 8 /* Defer roothub registration */
/* The flags can be tested using these macros; they are likely to
* be slightly faster than test_bit().
#define HCD_WAKEUP_PENDING(hcd) ((hcd)->flags & (1U << HCD_FLAG_WAKEUP_PENDING))
#define HCD_RH_RUNNING(hcd) ((hcd)->flags & (1U << HCD_FLAG_RH_RUNNING))
#define HCD_DEAD(hcd) ((hcd)->flags & (1U << HCD_FLAG_DEAD))
+#define HCD_DEFER_RH_REGISTER(hcd) ((hcd)->flags & (1U << HCD_FLAG_DEFER_RH_REGISTER))
/*
* Specifies if interfaces are authorized by default
return dp->type == DSA_PORT_TYPE_USER;
}
+static inline bool dsa_port_is_unused(struct dsa_port *dp)
+{
+ return dp->type == DSA_PORT_TYPE_UNUSED;
+}
+
static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p)
{
return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED;
int (*change_tag_protocol)(struct dsa_switch *ds, int port,
enum dsa_tag_protocol proto);
+ /* Optional switch-wide initialization and destruction methods */
int (*setup)(struct dsa_switch *ds);
void (*teardown)(struct dsa_switch *ds);
+
+ /* Per-port initialization and destruction methods. Mandatory if the
+ * driver registers devlink port regions, optional otherwise.
+ */
+ int (*port_setup)(struct dsa_switch *ds, int port);
+ void (*port_teardown)(struct dsa_switch *ds, int port);
+
u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
/*
void dsa_unregister_switch(struct dsa_switch *ds);
int dsa_register_switch(struct dsa_switch *ds);
+void dsa_switch_shutdown(struct dsa_switch *ds);
struct dsa_switch *dsa_switch_find(int tree_index, int sw_index);
#ifdef CONFIG_PM_SLEEP
int dsa_switch_suspend(struct dsa_switch *ds);
release_sock(sk);
__release(&sk->sk_lock.slock);
} else {
+ mutex_release(&sk->sk_lock.dep_map, _RET_IP_);
spin_unlock_bh(&sk->sk_lock.slock);
}
}
struct scsi_vpd __rcu *vpd_pg83;
struct scsi_vpd __rcu *vpd_pg80;
struct scsi_vpd __rcu *vpd_pg89;
- unsigned char current_tag; /* current tag */
struct scsi_target *sdev_target;
blist_flags_t sdev_bflags; /* black/white flags as also found in
enum afs_cb_break_reason {
afs_cb_break_no_break,
+ afs_cb_break_no_promise,
afs_cb_break_for_callback,
afs_cb_break_for_deleted,
afs_cb_break_for_lapsed,
+ afs_cb_break_for_s_reinit,
afs_cb_break_for_unlink,
- afs_cb_break_for_vsbreak,
+ afs_cb_break_for_v_break,
afs_cb_break_for_volume_callback,
afs_cb_break_for_zap,
};
#define afs_cb_break_reasons \
EM(afs_cb_break_no_break, "no-break") \
+ EM(afs_cb_break_no_promise, "no-promise") \
EM(afs_cb_break_for_callback, "break-cb") \
EM(afs_cb_break_for_deleted, "break-del") \
EM(afs_cb_break_for_lapsed, "break-lapsed") \
+ EM(afs_cb_break_for_s_reinit, "s-reinit") \
EM(afs_cb_break_for_unlink, "break-unlink") \
- EM(afs_cb_break_for_vsbreak, "break-vs") \
+ EM(afs_cb_break_for_v_break, "break-v") \
EM(afs_cb_break_for_volume_callback, "break-v-cb") \
E_(afs_cb_break_for_zap, "break-zap")
TP_STRUCT__entry(
__field(dev_t, dev )
__field(erofs_nid_t, nid )
- __field(const char *, name )
+ __string(name, dentry->d_name.name )
__field(unsigned int, flags )
),
TP_fast_assign(
__entry->dev = dir->i_sb->s_dev;
__entry->nid = EROFS_I(dir)->nid;
- __entry->name = dentry->d_name.name;
+ __assign_str(name, dentry->d_name.name);
__entry->flags = flags;
),
TP_printk("dev = (%d,%d), pnid = %llu, name:%s, flags:%x",
show_dev_nid(__entry),
- __entry->name,
+ __get_str(name),
__entry->flags)
);
struct binder_frozen_status_info {
__u32 pid;
+
+ /* process received sync transactions since last frozen
+ * bit 0: received sync transaction after being frozen
+ * bit 1: new pending sync transaction during freezing
+ */
__u32 sync_recv;
+
+ /* process received async transactions since last frozen */
__u32 async_recv;
};
/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
/*
- * include/uapi/linux/cifs/cifs_mount.h
*
* Author(s): Scott Lovenberg (scott.lovenberg@gmail.com)
*
IORING_REGISTER_IOWQ_AFF = 17,
IORING_UNREGISTER_IOWQ_AFF = 18,
- /* set/get max number of workers */
+ /* set/get max number of io-wq workers */
IORING_REGISTER_IOWQ_MAX_WORKERS = 19,
/* this goes last */
IORING_REGISTER_LAST
};
+/* io-wq worker categories */
+enum {
+ IO_WQ_BOUND,
+ IO_WQ_UNBOUND,
+};
+
/* deprecated, see struct io_uring_rsrc_update */
struct io_uring_files_update {
__u32 offset;
int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
unsigned int address_bits,
dma_addr_t *dma_handle);
-
void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
-#else
-static inline int xen_create_contiguous_region(phys_addr_t pstart,
- unsigned int order,
- unsigned int address_bits,
- dma_addr_t *dma_handle)
-{
- return 0;
-}
-
-static inline void xen_destroy_contiguous_region(phys_addr_t pstart,
- unsigned int order) { }
#endif
#if defined(CONFIG_XEN_PV)
__setup("rootfstype=", fs_names_setup);
__setup("rootdelay=", root_delay_setup);
-static int __init split_fs_names(char *page, char *names)
+/* This can return zero length strings. Caller should check */
+static int __init split_fs_names(char *page, size_t size, char *names)
{
- int count = 0;
+ int count = 1;
char *p = page;
- strcpy(p, root_fs_names);
+ strlcpy(p, root_fs_names, size);
while (*p++) {
- if (p[-1] == ',')
+ if (p[-1] == ',') {
p[-1] = '\0';
+ count++;
+ }
}
- *p = '\0';
-
- for (p = page; *p; p += strlen(p)+1)
- count++;
return count;
}
scnprintf(b, BDEVNAME_SIZE, "unknown-block(%u,%u)",
MAJOR(ROOT_DEV), MINOR(ROOT_DEV));
if (root_fs_names)
- num_fs = split_fs_names(fs_names, root_fs_names);
+ num_fs = split_fs_names(fs_names, PAGE_SIZE, root_fs_names);
else
num_fs = list_bdev_fs_names(fs_names, PAGE_SIZE);
retry:
for (i = 0, p = fs_names; i < num_fs; i++, p += strlen(p)+1) {
- int err = do_mount_root(name, p, flags, root_mount_data);
+ int err;
+
+ if (!*p)
+ continue;
+ err = do_mount_root(name, p, flags, root_mount_data);
switch (err) {
case 0:
goto out;
fs_names = (void *)__get_free_page(GFP_KERNEL);
if (!fs_names)
return -EINVAL;
- num_fs = split_fs_names(fs_names, root_fs_names);
+ num_fs = split_fs_names(fs_names, PAGE_SIZE, root_fs_names);
for (i = 0, fstype = fs_names; i < num_fs;
i++, fstype += strlen(fstype) + 1) {
+ if (!*fstype)
+ continue;
if (!fs_is_nodev(fstype))
continue;
err = do_mount_root(root_device_name, fstype, root_mountflags,
root_mount_data);
if (!err)
break;
- if (err != -EACCES && err != -EINVAL)
- panic("VFS: Unable to mount root \"%s\" (%s), err=%d\n",
- root_device_name, fstype, err);
}
free_page((unsigned long)fs_names);
end += sprintf(end, " %s", *p);
pr_notice("Unknown command line parameters:%s\n", unknown_options);
- memblock_free(__pa(unknown_options), len);
+ memblock_free_ptr(unknown_options, len);
}
asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
{
ktime_t *calltime = (ktime_t *)data;
- printk(KERN_DEBUG "calling %pS @ %i irqs_disabled() %d\n", fn, task_pid_nr(current), irqs_disabled());
+ printk(KERN_DEBUG "calling %pS @ %i\n", fn, task_pid_nr(current));
*calltime = ktime_get();
}
rettime = ktime_get();
delta = ktime_sub(rettime, *calltime);
duration = (unsigned long long) ktime_to_ns(delta) >> 10;
- printk(KERN_DEBUG "initcall %pS returned %d after %lld usecs, irqs_disabled() %d\n",
- fn, ret, duration, irqs_disabled());
+ printk(KERN_DEBUG "initcall %pS returned %d after %lld usecs\n",
+ fn, ret, duration);
}
static ktime_t initcall_calltime;
return -EINVAL;
if (nsops > SEMOPM_FAST) {
- sops = kvmalloc_array(nsops, sizeof(*sops), GFP_KERNEL_ACCOUNT);
+ sops = kvmalloc_array(nsops, sizeof(*sops), GFP_KERNEL);
if (sops == NULL)
return -ENOMEM;
}
-// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
* Copyright (c) 2016 Facebook
*/
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
* Copyright (c) 2016 Facebook
*/
* with build_id.
*/
if (!user || !current || !current->mm || irq_work_busy ||
- !mmap_read_trylock_non_owner(current->mm)) {
+ !mmap_read_trylock(current->mm)) {
/* cannot access current->mm, fall back to ips */
for (i = 0; i < trace_nr; i++) {
id_offs[i].status = BPF_STACK_BUILD_ID_IP;
}
if (!work) {
- mmap_read_unlock_non_owner(current->mm);
+ mmap_read_unlock(current->mm);
} else {
work->mm = current->mm;
+
+ /* The lock will be released once we're out of interrupt
+ * context. Tell lockdep that we've released it now so
+ * it doesn't complain that we forgot to release it.
+ */
+ rwsem_release(¤t->mm->mmap_lock.dep_map, _RET_IP_);
irq_work_queue(&work->irq_work);
}
}
nr_linfo = attr->line_info_cnt;
if (!nr_linfo)
return 0;
+ if (nr_linfo > INT_MAX / sizeof(struct bpf_line_info))
+ return -EINVAL;
rec_size = attr->line_info_rec_size;
if (rec_size < MIN_BPF_LINEINFO_SIZE ||
*/
#ifdef CONFIG_SOCK_CGROUP_DATA
-#if defined(CONFIG_CGROUP_NET_PRIO) || defined(CONFIG_CGROUP_NET_CLASSID)
-
-DEFINE_SPINLOCK(cgroup_sk_update_lock);
-static bool cgroup_sk_alloc_disabled __read_mostly;
-
-void cgroup_sk_alloc_disable(void)
-{
- if (cgroup_sk_alloc_disabled)
- return;
- pr_info("cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation\n");
- cgroup_sk_alloc_disabled = true;
-}
-
-#else
-
-#define cgroup_sk_alloc_disabled false
-
-#endif
-
void cgroup_sk_alloc(struct sock_cgroup_data *skcd)
{
- if (cgroup_sk_alloc_disabled) {
- skcd->no_refcnt = 1;
- return;
- }
-
/* Don't associate the sock with unrelated interrupted task's cgroup. */
if (in_interrupt())
return;
rcu_read_lock();
-
while (true) {
struct css_set *cset;
cset = task_css_set(current);
if (likely(cgroup_tryget(cset->dfl_cgrp))) {
- skcd->val = (unsigned long)cset->dfl_cgrp;
+ skcd->cgroup = cset->dfl_cgrp;
cgroup_bpf_get(cset->dfl_cgrp);
break;
}
cpu_relax();
}
-
rcu_read_unlock();
}
void cgroup_sk_clone(struct sock_cgroup_data *skcd)
{
- if (skcd->val) {
- if (skcd->no_refcnt)
- return;
- /*
- * We might be cloning a socket which is left in an empty
- * cgroup and the cgroup might have already been rmdir'd.
- * Don't use cgroup_get_live().
- */
- cgroup_get(sock_cgroup_ptr(skcd));
- cgroup_bpf_get(sock_cgroup_ptr(skcd));
- }
+ struct cgroup *cgrp = sock_cgroup_ptr(skcd);
+
+ /*
+ * We might be cloning a socket which is left in an empty
+ * cgroup and the cgroup might have already been rmdir'd.
+ * Don't use cgroup_get_live().
+ */
+ cgroup_get(cgrp);
+ cgroup_bpf_get(cgrp);
}
void cgroup_sk_free(struct sock_cgroup_data *skcd)
{
struct cgroup *cgrp = sock_cgroup_ptr(skcd);
- if (skcd->no_refcnt)
- return;
cgroup_bpf_put(cgrp);
cgroup_put(cgrp);
}
pr_err("cacheline tracking ENOMEM, dma-debug disabled\n");
global_disable = true;
} else if (rc == -EEXIST) {
- pr_err("cacheline tracking EEXIST, overlapping mappings aren't supported\n");
+ err_printk(entry->dev, entry,
+ "cacheline tracking EEXIST, overlapping mappings aren't supported\n");
}
}
/**
* dma_map_sg_attrs - Map the given buffer for DMA
* @dev: The device for which to perform the DMA operation
- * @sg: The sg_table object describing the buffer
+ * @sg: The sg_table object describing the buffer
+ * @nents: Number of entries to map
* @dir: DMA direction
* @attrs: Optional DMA attributes for the map operation
*
if (ti_work & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
handle_signal_work(regs, ti_work);
- if (ti_work & _TIF_NOTIFY_RESUME) {
+ if (ti_work & _TIF_NOTIFY_RESUME)
tracehook_notify_resume(regs);
- rseq_handle_notify_resume(NULL, regs);
- }
/* Architecture specific TIF work */
arch_exit_to_user_mode_work(regs, ti_work);
return;
if (ifh->nr_file_filters) {
- mm = get_task_mm(event->ctx->task);
+ mm = get_task_mm(task);
if (!mm)
goto restart;
* Allocates and initializes an irq_domain structure.
* Returns pointer to IRQ domain, or NULL on failure.
*/
-struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
+struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, unsigned int size,
irq_hw_number_t hwirq_max, int direct_max,
const struct irq_domain_ops *ops,
void *host_data)
* The risk of writer starvation is there, but the pathological use cases
* which trigger it are not necessarily the typical RT workloads.
*
+ * Fast-path orderings:
+ * The lock/unlock of readers can run in fast paths: lock and unlock are only
+ * atomic ops, and there is no inner lock to provide ACQUIRE and RELEASE
+ * semantics of rwbase_rt. Atomic ops should thus provide _acquire()
+ * and _release() (or stronger).
+ *
* Common code shared between RT rw_semaphore and rwlock
*/
* set.
*/
for (r = atomic_read(&rwb->readers); r < 0;) {
+ /* Fully-ordered if cmpxchg() succeeds, provides ACQUIRE */
if (likely(atomic_try_cmpxchg(&rwb->readers, &r, r + 1)))
return 1;
}
/*
* rwb->readers can only hit 0 when a writer is waiting for the
* active readers to leave the critical section.
+ *
+ * dec_and_test() is fully ordered, provides RELEASE.
*/
if (unlikely(atomic_dec_and_test(&rwb->readers)))
__rwbase_read_unlock(rwb, state);
{
struct rt_mutex_base *rtm = &rwb->rtmutex;
- atomic_add(READER_BIAS - bias, &rwb->readers);
+ /*
+ * _release() is needed in case that reader is in fast path, pairing
+ * with atomic_try_cmpxchg() in rwbase_read_trylock(), provides RELEASE
+ */
+ (void)atomic_add_return_release(READER_BIAS - bias, &rwb->readers);
raw_spin_unlock_irqrestore(&rtm->wait_lock, flags);
rwbase_rtmutex_unlock(rtm);
}
__rwbase_write_unlock(rwb, WRITER_BIAS - 1, flags);
}
+static inline bool __rwbase_write_trylock(struct rwbase_rt *rwb)
+{
+ /* Can do without CAS because we're serialized by wait_lock. */
+ lockdep_assert_held(&rwb->rtmutex.wait_lock);
+
+ /*
+ * _acquire is needed in case the reader is in the fast path, pairing
+ * with rwbase_read_unlock(), provides ACQUIRE.
+ */
+ if (!atomic_read_acquire(&rwb->readers)) {
+ atomic_set(&rwb->readers, WRITER_BIAS);
+ return 1;
+ }
+
+ return 0;
+}
+
static int __sched rwbase_write_lock(struct rwbase_rt *rwb,
unsigned int state)
{
atomic_sub(READER_BIAS, &rwb->readers);
raw_spin_lock_irqsave(&rtm->wait_lock, flags);
- /*
- * set_current_state() for rw_semaphore
- * current_save_and_set_rtlock_wait_state() for rwlock
- */
- rwbase_set_and_save_current_state(state);
+ if (__rwbase_write_trylock(rwb))
+ goto out_unlock;
- /* Block until all readers have left the critical section. */
- for (; atomic_read(&rwb->readers);) {
+ rwbase_set_and_save_current_state(state);
+ for (;;) {
/* Optimized out for rwlocks */
if (rwbase_signal_pending_state(state, current)) {
- __set_current_state(TASK_RUNNING);
+ rwbase_restore_current_state();
__rwbase_write_unlock(rwb, 0, flags);
return -EINTR;
}
+
+ if (__rwbase_write_trylock(rwb))
+ break;
+
raw_spin_unlock_irqrestore(&rtm->wait_lock, flags);
+ rwbase_schedule();
+ raw_spin_lock_irqsave(&rtm->wait_lock, flags);
- /*
- * Schedule and wait for the readers to leave the critical
- * section. The last reader leaving it wakes the waiter.
- */
- if (atomic_read(&rwb->readers) != 0)
- rwbase_schedule();
set_current_state(state);
- raw_spin_lock_irqsave(&rtm->wait_lock, flags);
}
-
- atomic_set(&rwb->readers, WRITER_BIAS);
rwbase_restore_current_state();
+
+out_unlock:
raw_spin_unlock_irqrestore(&rtm->wait_lock, flags);
return 0;
}
atomic_sub(READER_BIAS, &rwb->readers);
raw_spin_lock_irqsave(&rtm->wait_lock, flags);
- if (!atomic_read(&rwb->readers)) {
- atomic_set(&rwb->readers, WRITER_BIAS);
+ if (__rwbase_write_trylock(rwb)) {
raw_spin_unlock_irqrestore(&rtm->wait_lock, flags);
return 1;
}
return;
err_free_descs:
- memblock_free(__pa(new_descs), new_descs_size);
+ memblock_free_ptr(new_descs, new_descs_size);
err_free_log_buf:
- memblock_free(__pa(new_log_buf), new_log_buf_len);
+ memblock_free_ptr(new_log_buf, new_log_buf_len);
}
static bool __read_mostly ignore_loglevel;
if (unlikely(t->flags & PF_EXITING))
return;
- ret = rseq_ip_fixup(regs);
- if (unlikely(ret < 0))
- goto error;
+
+ /*
+ * regs is NULL if and only if the caller is in a syscall path. Skip
+ * fixup and leave rseq_cs as is so that rseq_sycall() will detect and
+ * kill a misbehaving userspace on debug kernels.
+ */
+ if (regs) {
+ ret = rseq_ip_fixup(regs);
+ if (unlikely(ret < 0))
+ goto error;
+ }
if (unlikely(rseq_update_cpu_id(t)))
goto error;
return;
}
}
- *newval += now;
+ if (*newval)
+ *newval += now;
}
/*
if (bt == NULL)
return -EINVAL;
+ if (bt->trace_state == Blktrace_running) {
+ bt->trace_state = Blktrace_stopped;
+ spin_lock_irq(&running_trace_lock);
+ list_del_init(&bt->running_list);
+ spin_unlock_irq(&running_trace_lock);
+ relay_flush(bt->rchan);
+ }
+
put_probe_ref();
synchronize_rcu();
blk_trace_free(bt);
config DEBUG_INFO_DWARF5
bool "Generate DWARF Version 5 debuginfo"
- depends on GCC_VERSION >= 50000 || (CC_IS_CLANG && (AS_IS_LLVM || (AS_IS_GNU && AS_VERSION >= 23502)))
+ depends on !CC_IS_CLANG || (CC_IS_CLANG && (AS_IS_LLVM || (AS_IS_GNU && AS_VERSION >= 23502)))
depends on !DEBUG_INFO_BTF
help
Generate DWARF v5 debug info. Requires binutils 2.35.2, gcc 5.0+ (gcc
int "Warn for stack frames larger than"
range 0 8192
default 2048 if GCC_PLUGIN_LATENT_ENTROPY
- default 1536 if (!64BIT && PARISC)
+ default 1536 if (!64BIT && (PARISC || XTENSA))
default 1024 if (!64BIT && !PARISC)
default 2048 if 64BIT
help
config KASAN_GENERIC
bool "Generic mode"
depends on HAVE_ARCH_KASAN && CC_HAS_KASAN_GENERIC
+ depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS
select SLUB_DEBUG if SLUB
select CONSTRUCTORS
help
config KASAN_SW_TAGS
bool "Software tag-based mode"
depends on HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS
+ depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS
select SLUB_DEBUG if SLUB
select CONSTRUCTORS
help
xbc_data = NULL;
xbc_data_size = 0;
xbc_node_num = 0;
- memblock_free(__pa(xbc_nodes), sizeof(struct xbc_node) * XBC_NODE_MAX);
+ memblock_free_ptr(xbc_nodes, sizeof(struct xbc_node) * XBC_NODE_MAX);
xbc_nodes = NULL;
brace_index = 0;
}
return 0;
}
EXPORT_SYMBOL(import_single_range);
+
+/**
+ * iov_iter_restore() - Restore a &struct iov_iter to the same state as when
+ * iov_iter_save_state() was called.
+ *
+ * @i: &struct iov_iter to restore
+ * @state: state to restore from
+ *
+ * Used after iov_iter_save_state() to bring restore @i, if operations may
+ * have advanced it.
+ *
+ * Note: only works on ITER_IOVEC, ITER_BVEC, and ITER_KVEC
+ */
+void iov_iter_restore(struct iov_iter *i, struct iov_iter_state *state)
+{
+ if (WARN_ON_ONCE(!iov_iter_is_bvec(i) && !iter_is_iovec(i)) &&
+ !iov_iter_is_kvec(i))
+ return;
+ i->iov_offset = state->iov_offset;
+ i->count = state->count;
+ /*
+ * For the *vec iters, nr_segs + iov is constant - if we increment
+ * the vec, then we also decrement the nr_segs count. Hence we don't
+ * need to track both of these, just one is enough and we can deduct
+ * the other from that. ITER_KVEC and ITER_IOVEC are the same struct
+ * size, so we can just increment the iov pointer as they are unionzed.
+ * ITER_BVEC _may_ be the same size on some archs, but on others it is
+ * not. Be safe and handle it separately.
+ */
+ BUILD_BUG_ON(sizeof(struct iovec) != sizeof(struct kvec));
+ if (iov_iter_is_bvec(i))
+ i->bvec -= state->nr_segs - i->nr_segs;
+ else
+ i->iov -= state->nr_segs - i->nr_segs;
+ i->nr_segs = state->nr_segs;
+}
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
-/* Copyright (c) 2016-2018, NXP Semiconductors
+/* Copyright 2016-2018 NXP
* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
*/
#include <linux/packing.h>
return pci_iomap_wc_range(dev, bar, 0, maxlen);
}
EXPORT_SYMBOL_GPL(pci_iomap_wc);
+
+/*
+ * pci_iounmap() somewhat illogically comes from lib/iomap.c for the
+ * CONFIG_GENERIC_IOMAP case, because that's the code that knows about
+ * the different IOMAP ranges.
+ *
+ * But if the architecture does not use the generic iomap code, and if
+ * it has _not_ defined it's own private pci_iounmap function, we define
+ * it here.
+ *
+ * NOTE! This default implementation assumes that if the architecture
+ * support ioport mapping (HAS_IOPORT_MAP), the ioport mapping will
+ * be fixed to the range [ PCI_IOBASE, PCI_IOBASE+IO_SPACE_LIMIT [,
+ * and does not need unmapping with 'ioport_unmap()'.
+ *
+ * If you have different rules for your architecture, you need to
+ * implement your own pci_iounmap() that knows the rules for where
+ * and how IO vs MEM get mapped.
+ *
+ * This code is odd, and the ARCH_HAS/ARCH_WANTS #define logic comes
+ * from legacy <asm-generic/io.h> header file behavior. In particular,
+ * it would seem to make sense to do the iounmap(p) for the non-IO-space
+ * case here regardless, but that's not what the old header file code
+ * did. Probably incorrectly, but this is meant to be bug-for-bug
+ * compatible.
+ */
+#if defined(ARCH_WANTS_GENERIC_PCI_IOUNMAP)
+
+void pci_iounmap(struct pci_dev *dev, void __iomem *p)
+{
+#ifdef ARCH_HAS_GENERIC_IOPORT_MAP
+ uintptr_t start = (uintptr_t) PCI_IOBASE;
+ uintptr_t addr = (uintptr_t) p;
+
+ if (addr >= start && addr < start + IO_SPACE_LIMIT)
+ return;
+ iounmap(p);
+#endif
+}
+EXPORT_SYMBOL(pci_iounmap);
+
+#endif /* ARCH_WANTS_GENERIC_PCI_IOUNMAP */
+
#endif /* CONFIG_PCI */
sfrom = (unsigned short *)(from);
loops = len >> 1;
- do
-#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- *sout++ = *sfrom++;
-#else
- *sout++ = get_unaligned16(sfrom++);
-#endif
- while (--loops);
+ do {
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS))
+ *sout++ = *sfrom++;
+ else
+ *sout++ = get_unaligned16(sfrom++);
+ } while (--loops);
out = (unsigned char *)sout;
from = (unsigned char *)sfrom;
} else { /* dist == 1 or dist == 2 */
ssize_t nr_integers = 0, i;
question = "123";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
kfree(answers);
question = "123abc";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
kfree(answers);
question = "a123";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
kfree(answers);
question = "12 35";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
for (i = 0; i < nr_integers; i++)
kfree(answers);
question = "12 35 46";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)3, nr_integers);
for (i = 0; i < nr_integers; i++)
kfree(answers);
question = "12 35 abc 46";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
for (i = 0; i < 2; i++)
kfree(answers);
question = "";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
kfree(answers);
question = "\n";
- answers = str_to_target_ids(question, strnlen(question, 128),
+ answers = str_to_target_ids(question, strlen(question),
&nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
kfree(answers);
"syscall_or_cpuset",
"mempolicy_mbind",
"numa_misplaced",
- "cma",
+ "contig_range",
+ "longterm_pin",
+ "demotion",
};
const struct trace_print_flags pageflag_names[] = {
* from &migrate_nodes. This will verify that future list.h changes
* don't break STABLE_NODE_DUP_HEAD. Only recent gcc can handle it.
*/
-#if defined(GCC_VERSION) && GCC_VERSION >= 40903
BUILD_BUG_ON(STABLE_NODE_DUP_HEAD <= &migrate_nodes);
BUILD_BUG_ON(STABLE_NODE_DUP_HEAD >= &migrate_nodes + 1);
-#endif
if (stable_node->head == &migrate_nodes)
list_del(&stable_node->list);
kfree(old_array);
else if (old_array != memblock_memory_init_regions &&
old_array != memblock_reserved_init_regions)
- memblock_free(__pa(old_array), old_alloc_size);
+ memblock_free_ptr(old_array, old_alloc_size);
/*
* Reserve the new array if that comes from the memblock. Otherwise, we
}
/**
+ * memblock_free_ptr - free boot memory allocation
+ * @ptr: starting address of the boot memory allocation
+ * @size: size of the boot memory block in bytes
+ *
+ * Free boot memory block previously allocated by memblock_alloc_xx() API.
+ * The freeing memory will not be released to the buddy allocator.
+ */
+void __init_memblock memblock_free_ptr(void *ptr, size_t size)
+{
+ if (ptr)
+ memblock_free(__pa(ptr), size);
+}
+
+/**
* memblock_free - free boot memory block
* @base: phys starting address of the boot memory block
* @size: size of the boot memory block in bytes
/* memcg and lruvec stats flushing */
static void flush_memcg_stats_dwork(struct work_struct *w);
static DECLARE_DEFERRABLE_WORK(stats_flush_dwork, flush_memcg_stats_dwork);
-static void flush_memcg_stats_work(struct work_struct *w);
-static DECLARE_WORK(stats_flush_work, flush_memcg_stats_work);
-static DEFINE_PER_CPU(unsigned int, stats_flush_threshold);
static DEFINE_SPINLOCK(stats_flush_lock);
#define THRESHOLDS_EVENTS_TARGET 128
/* Update lruvec */
__this_cpu_add(pn->lruvec_stats_percpu->state[idx], val);
- if (!(__this_cpu_inc_return(stats_flush_threshold) % MEMCG_CHARGE_BATCH))
- queue_work(system_unbound_wq, &stats_flush_work);
}
/**
queue_delayed_work(system_unbound_wq, &stats_flush_dwork, 2UL*HZ);
}
-static void flush_memcg_stats_work(struct work_struct *w)
-{
- mem_cgroup_flush_stats();
-}
-
static void mem_cgroup_css_rstat_flush(struct cgroup_subsys_state *css, int cpu)
{
struct mem_cgroup *memcg = mem_cgroup_from_css(css);
struct vm_area_struct *vma)
{
unsigned long address = vma_address(page, vma);
+ unsigned long ret = 0;
pgd_t *pgd;
p4d_t *p4d;
pud_t *pud;
if (pmd_devmap(*pmd))
return PMD_SHIFT;
pte = pte_offset_map(pmd, address);
- if (!pte_present(*pte))
- return 0;
- if (pte_devmap(*pte))
- return PAGE_SHIFT;
- return 0;
+ if (pte_present(*pte) && pte_devmap(*pte))
+ ret = PAGE_SHIFT;
+ pte_unmap(pte);
+ return ret;
}
/*
*/
static inline bool HWPoisonHandlable(struct page *page)
{
- return PageLRU(page) || __PageMovable(page);
+ return PageLRU(page) || __PageMovable(page) || is_free_buddy_page(page);
}
static int __get_hwpoison_page(struct page *page)
unmap_mapping_range_tree(&mapping->i_mmap, &details);
i_mmap_unlock_write(mapping);
}
+EXPORT_SYMBOL_GPL(unmap_mapping_pages);
/**
* unmap_mapping_range - unmap the portion of all mmaps in the specified
case SHMEM_HUGE_ALWAYS:
return true;
case SHMEM_HUGE_WITHIN_SIZE:
- index = round_up(index, HPAGE_PMD_NR);
+ index = round_up(index + 1, HPAGE_PMD_NR);
i_size = round_up(i_size_read(inode), PAGE_SIZE);
- if (i_size >= HPAGE_PMD_SIZE && (i_size >> PAGE_SHIFT) >= index)
+ if (i_size >> PAGE_SHIFT >= index)
return true;
fallthrough;
case SHMEM_HUGE_ADVISE:
pagevec_lru_move_fn(pvec, lru_lazyfree_fn);
activate_page_drain(cpu);
- invalidate_bh_lrus_cpu(cpu);
}
/**
local_unlock(&lru_pvecs.lock);
}
+/*
+ * It's called from per-cpu workqueue context in SMP case so
+ * lru_add_drain_cpu and invalidate_bh_lrus_cpu should run on
+ * the same cpu. It shouldn't be a problem in !SMP case since
+ * the core is only one and the locks will disable preemption.
+ */
+static void lru_add_and_bh_lrus_drain(void)
+{
+ local_lock(&lru_pvecs.lock);
+ lru_add_drain_cpu(smp_processor_id());
+ local_unlock(&lru_pvecs.lock);
+ invalidate_bh_lrus_cpu();
+}
+
void lru_add_drain_cpu_zone(struct zone *zone)
{
local_lock(&lru_pvecs.lock);
static void lru_add_drain_per_cpu(struct work_struct *dummy)
{
- lru_add_drain();
+ lru_add_and_bh_lrus_drain();
}
/*
*/
__lru_add_drain_all(true);
#else
- lru_add_drain();
+ lru_add_and_bh_lrus_drain();
#endif
}
size_t *lenp, loff_t *ppos)
{
struct ctl_table t;
- int new_policy;
+ int new_policy = -1;
int ret;
/*
t = *table;
t.data = &new_policy;
ret = proc_dointvec_minmax(&t, write, buffer, lenp, ppos);
- if (ret)
+ if (ret || new_policy == -1)
return ret;
mm_compute_batch(new_policy);
inc_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file);
+ mem_cgroup_flush_stats();
/*
* Compare the distance to the existing workingset size. We
* don't activate pages that couldn't stay resident even if
enum caif_states state;
};
-static void robust_list_del(struct list_head *delete_node)
-{
- struct list_head *list_node;
- struct list_head *n;
- ASSERT_RTNL();
- list_for_each_safe(list_node, n, &chnl_net_list) {
- if (list_node == delete_node) {
- list_del(list_node);
- return;
- }
- }
- WARN_ON(1);
-}
-
static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt)
{
struct sk_buff *skb;
ASSERT_RTNL();
priv = netdev_priv(dev);
strncpy(priv->name, dev->name, sizeof(priv->name));
+ INIT_LIST_HEAD(&priv->list_field);
return 0;
}
struct chnl_net *priv;
ASSERT_RTNL();
priv = netdev_priv(dev);
- robust_list_del(&priv->list_field);
+ list_del_init(&priv->list_field);
}
static const struct net_device_ops netdev_ops = {
rtnl_lock();
list_for_each_safe(list_node, _tmp, &chnl_net_list) {
dev = list_entry(list_node, struct chnl_net, list_field);
- list_del(list_node);
+ list_del_init(list_node);
delete_device(dev);
}
rtnl_unlock();
*/
void napi_enable(struct napi_struct *n)
{
- BUG_ON(!test_bit(NAPI_STATE_SCHED, &n->state));
- smp_mb__before_atomic();
- clear_bit(NAPI_STATE_SCHED, &n->state);
- clear_bit(NAPI_STATE_NPSVC, &n->state);
- if (n->dev->threaded && n->thread)
- set_bit(NAPI_STATE_THREADED, &n->state);
+ unsigned long val, new;
+
+ do {
+ val = READ_ONCE(n->state);
+ BUG_ON(!test_bit(NAPI_STATE_SCHED, &val));
+
+ new = val & ~(NAPIF_STATE_SCHED | NAPIF_STATE_NPSVC);
+ if (n->dev->threaded && n->thread)
+ new |= NAPIF_STATE_THREADED;
+ } while (cmpxchg(&n->state, val, new) != val);
}
EXPORT_SYMBOL(napi_enable);
struct update_classid_context *ctx = (void *)v;
struct socket *sock = sock_from_file(file);
- if (sock) {
- spin_lock(&cgroup_sk_update_lock);
+ if (sock)
sock_cgroup_set_classid(&sock->sk->sk_cgrp_data, ctx->classid);
- spin_unlock(&cgroup_sk_update_lock);
- }
if (--ctx->batch == 0) {
ctx->batch = UPDATE_CLASSID_BATCH;
return n + 1;
struct css_task_iter it;
struct task_struct *p;
- cgroup_sk_alloc_disable();
-
cs->classid = (u32)value;
css_task_iter_start(css, 0, &it);
if (!dev)
return -ENODEV;
- cgroup_sk_alloc_disable();
-
rtnl_lock();
ret = netprio_set_prio(of_css(of), dev, prio);
static int update_netprio(const void *v, struct file *file, unsigned n)
{
struct socket *sock = sock_from_file(file);
- if (sock) {
- spin_lock(&cgroup_sk_update_lock);
+
+ if (sock)
sock_cgroup_set_prioidx(&sock->sk->sk_cgrp_data,
(unsigned long)v);
- spin_unlock(&cgroup_sk_update_lock);
- }
return 0;
}
struct task_struct *p;
struct cgroup_subsys_state *css;
- cgroup_sk_alloc_disable();
-
cgroup_taskset_for_each(p, css, tset) {
void *v = (void *)(unsigned long)css->id;
void lock_sock_nested(struct sock *sk, int subclass)
{
+ /* The sk_lock has mutex_lock() semantics here. */
+ mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_);
+
might_sleep();
spin_lock_bh(&sk->sk_lock.slock);
if (sk->sk_lock.owned)
__lock_sock(sk);
sk->sk_lock.owned = 1;
- spin_unlock(&sk->sk_lock.slock);
- /*
- * The sk_lock has mutex_lock() semantics here:
- */
- mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_);
- local_bh_enable();
+ spin_unlock_bh(&sk->sk_lock.slock);
}
EXPORT_SYMBOL(lock_sock_nested);
*/
bool lock_sock_fast(struct sock *sk) __acquires(&sk->sk_lock.slock)
{
+ /* The sk_lock has mutex_lock() semantics here. */
+ mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_);
+
might_sleep();
spin_lock_bh(&sk->sk_lock.slock);
- if (!sk->sk_lock.owned)
+ if (!sk->sk_lock.owned) {
/*
- * Note : We must disable BH
+ * Fast path return with bottom halves disabled and
+ * sock::sk_lock.slock held.
+ *
+ * The 'mutex' is not contended and holding
+ * sock::sk_lock.slock prevents all other lockers to
+ * proceed so the corresponding unlock_sock_fast() can
+ * avoid the slow path of release_sock() completely and
+ * just release slock.
+ *
+ * From a semantical POV this is equivalent to 'acquiring'
+ * the 'mutex', hence the corresponding lockdep
+ * mutex_release() has to happen in the fast path of
+ * unlock_sock_fast().
*/
return false;
+ }
__lock_sock(sk);
sk->sk_lock.owned = 1;
- spin_unlock(&sk->sk_lock.slock);
- /*
- * The sk_lock has mutex_lock() semantics here:
- */
- mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_);
__acquire(&sk->sk_lock.slock);
- local_bh_enable();
+ spin_unlock_bh(&sk->sk_lock.slock);
return true;
}
EXPORT_SYMBOL(lock_sock_fast);
newdp->dccps_role = DCCP_ROLE_SERVER;
newdp->dccps_hc_rx_ackvec = NULL;
newdp->dccps_service_list = NULL;
+ newdp->dccps_hc_rx_ccid = NULL;
+ newdp->dccps_hc_tx_ccid = NULL;
newdp->dccps_service = dreq->dreq_service;
newdp->dccps_timestamp_echo = dreq->dreq_timestamp_echo;
newdp->dccps_timestamp_time = dreq->dreq_timestamp_time;
return queue_work(dsa_owq, work);
}
+void dsa_flush_workqueue(void)
+{
+ flush_workqueue(dsa_owq);
+}
+
int dsa_devlink_param_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
{
struct devlink_port *dlp = &dp->devlink_port;
bool dsa_port_link_registered = false;
+ struct dsa_switch *ds = dp->ds;
bool dsa_port_enabled = false;
int err = 0;
INIT_LIST_HEAD(&dp->fdbs);
INIT_LIST_HEAD(&dp->mdbs);
+ if (ds->ops->port_setup) {
+ err = ds->ops->port_setup(ds, dp->index);
+ if (err)
+ return err;
+ }
+
switch (dp->type) {
case DSA_PORT_TYPE_UNUSED:
dsa_port_disable(dp);
dsa_port_disable(dp);
if (err && dsa_port_link_registered)
dsa_port_link_unregister_of(dp);
- if (err)
+ if (err) {
+ if (ds->ops->port_teardown)
+ ds->ops->port_teardown(ds, dp->index);
return err;
+ }
dp->setup = true;
static void dsa_port_teardown(struct dsa_port *dp)
{
struct devlink_port *dlp = &dp->devlink_port;
+ struct dsa_switch *ds = dp->ds;
struct dsa_mac_addr *a, *tmp;
if (!dp->setup)
return;
+ if (ds->ops->port_teardown)
+ ds->ops->port_teardown(ds, dp->index);
+
devlink_port_type_clear(dlp);
switch (dp->type) {
dp->devlink_port_setup = false;
}
+/* Destroy the current devlink port, and create a new one which has the UNUSED
+ * flavour. At this point, any call to ds->ops->port_setup has been already
+ * balanced out by a call to ds->ops->port_teardown, so we know that any
+ * devlink port regions the driver had are now unregistered. We then call its
+ * ds->ops->port_setup again, in order for the driver to re-create them on the
+ * new devlink port.
+ */
+static int dsa_port_reinit_as_unused(struct dsa_port *dp)
+{
+ struct dsa_switch *ds = dp->ds;
+ int err;
+
+ dsa_port_devlink_teardown(dp);
+ dp->type = DSA_PORT_TYPE_UNUSED;
+ err = dsa_port_devlink_setup(dp);
+ if (err)
+ return err;
+
+ if (ds->ops->port_setup) {
+ /* On error, leave the devlink port registered,
+ * dsa_switch_teardown will clean it up later.
+ */
+ err = ds->ops->port_setup(ds, dp->index);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
static int dsa_devlink_info_get(struct devlink *dl,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
devlink_params_publish(ds->devlink);
if (!ds->slave_mii_bus && ds->ops->phy_read) {
- ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
+ ds->slave_mii_bus = mdiobus_alloc();
if (!ds->slave_mii_bus) {
err = -ENOMEM;
goto teardown;
err = mdiobus_register(ds->slave_mii_bus);
if (err < 0)
- goto teardown;
+ goto free_slave_mii_bus;
}
ds->setup = true;
return 0;
+free_slave_mii_bus:
+ if (ds->slave_mii_bus && ds->ops->phy_read)
+ mdiobus_free(ds->slave_mii_bus);
teardown:
if (ds->ops->teardown)
ds->ops->teardown(ds);
if (!ds->setup)
return;
- if (ds->slave_mii_bus && ds->ops->phy_read)
+ if (ds->slave_mii_bus && ds->ops->phy_read) {
mdiobus_unregister(ds->slave_mii_bus);
+ mdiobus_free(ds->slave_mii_bus);
+ ds->slave_mii_bus = NULL;
+ }
dsa_switch_unregister_notifier(ds);
ds->setup = false;
}
+/* First tear down the non-shared, then the shared ports. This ensures that
+ * all work items scheduled by our switchdev handlers for user ports have
+ * completed before we destroy the refcounting kept on the shared ports.
+ */
+static void dsa_tree_teardown_ports(struct dsa_switch_tree *dst)
+{
+ struct dsa_port *dp;
+
+ list_for_each_entry(dp, &dst->ports, list)
+ if (dsa_port_is_user(dp) || dsa_port_is_unused(dp))
+ dsa_port_teardown(dp);
+
+ dsa_flush_workqueue();
+
+ list_for_each_entry(dp, &dst->ports, list)
+ if (dsa_port_is_dsa(dp) || dsa_port_is_cpu(dp))
+ dsa_port_teardown(dp);
+}
+
+static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)
+{
+ struct dsa_port *dp;
+
+ list_for_each_entry(dp, &dst->ports, list)
+ dsa_switch_teardown(dp->ds);
+}
+
static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
{
struct dsa_port *dp;
list_for_each_entry(dp, &dst->ports, list) {
err = dsa_port_setup(dp);
if (err) {
- dsa_port_devlink_teardown(dp);
- dp->type = DSA_PORT_TYPE_UNUSED;
- err = dsa_port_devlink_setup(dp);
+ err = dsa_port_reinit_as_unused(dp);
if (err)
goto teardown;
- continue;
}
}
return 0;
teardown:
- list_for_each_entry(dp, &dst->ports, list)
- dsa_port_teardown(dp);
+ dsa_tree_teardown_ports(dst);
- list_for_each_entry(dp, &dst->ports, list)
- dsa_switch_teardown(dp->ds);
+ dsa_tree_teardown_switches(dst);
return err;
}
-static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)
-{
- struct dsa_port *dp;
-
- list_for_each_entry(dp, &dst->ports, list)
- dsa_port_teardown(dp);
-
- list_for_each_entry(dp, &dst->ports, list)
- dsa_switch_teardown(dp->ds);
-}
-
static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
{
struct dsa_port *dp;
teardown_master:
dsa_tree_teardown_master(dst);
teardown_switches:
+ dsa_tree_teardown_ports(dst);
dsa_tree_teardown_switches(dst);
teardown_cpu_ports:
dsa_tree_teardown_cpu_ports(dst);
dsa_tree_teardown_master(dst);
+ dsa_tree_teardown_ports(dst);
+
dsa_tree_teardown_switches(dst);
dsa_tree_teardown_cpu_ports(dst);
mutex_unlock(&dsa2_mutex);
}
EXPORT_SYMBOL_GPL(dsa_unregister_switch);
+
+/* If the DSA master chooses to unregister its net_device on .shutdown, DSA is
+ * blocking that operation from completion, due to the dev_hold taken inside
+ * netdev_upper_dev_link. Unlink the DSA slave interfaces from being uppers of
+ * the DSA master, so that the system can reboot successfully.
+ */
+void dsa_switch_shutdown(struct dsa_switch *ds)
+{
+ struct net_device *master, *slave_dev;
+ LIST_HEAD(unregister_list);
+ struct dsa_port *dp;
+
+ mutex_lock(&dsa2_mutex);
+ rtnl_lock();
+
+ list_for_each_entry(dp, &ds->dst->ports, list) {
+ if (dp->ds != ds)
+ continue;
+
+ if (!dsa_port_is_user(dp))
+ continue;
+
+ master = dp->cpu_dp->master;
+ slave_dev = dp->slave;
+
+ netdev_upper_dev_unlink(master, slave_dev);
+ /* Just unlinking ourselves as uppers of the master is not
+ * sufficient. When the master net device unregisters, that will
+ * also call dev_close, which we will catch as NETDEV_GOING_DOWN
+ * and trigger a dev_close on our own devices (dsa_slave_close).
+ * In turn, that will call dev_mc_unsync on the master's net
+ * device. If the master is also a DSA switch port, this will
+ * trigger dsa_slave_set_rx_mode which will call dev_mc_sync on
+ * its own master. Lockdep will complain about the fact that
+ * all cascaded masters have the same dsa_master_addr_list_lock_key,
+ * which it normally would not do if the cascaded masters would
+ * be in a proper upper/lower relationship, which we've just
+ * destroyed.
+ * To suppress the lockdep warnings, let's actually unregister
+ * the DSA slave interfaces too, to avoid the nonsensical
+ * multicast address list synchronization on shutdown.
+ */
+ unregister_netdevice_queue(slave_dev, &unregister_list);
+ }
+ unregister_netdevice_many(&unregister_list);
+
+ rtnl_unlock();
+ mutex_unlock(&dsa2_mutex);
+}
+EXPORT_SYMBOL_GPL(dsa_switch_shutdown);
const struct dsa_device_ops *dsa_find_tagger_by_name(const char *buf);
bool dsa_schedule_work(struct work_struct *work);
+void dsa_flush_workqueue(void);
const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
static inline int dsa_tag_protocol_overhead(const struct dsa_device_ops *ops)
* use the switch internal MDIO bus instead
*/
ret = dsa_slave_phy_connect(slave_dev, dp->index, phy_flags);
- if (ret) {
- netdev_err(slave_dev,
- "failed to connect to port %d: %d\n",
- dp->index, ret);
- phylink_destroy(dp->pl);
- return ret;
- }
+ }
+ if (ret) {
+ netdev_err(slave_dev, "failed to connect to PHY: %pe\n",
+ ERR_PTR(ret));
+ phylink_destroy(dp->pl);
}
return ret;
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2019 NXP Semiconductors
+/* Copyright 2019 NXP
*/
#include <linux/dsa/ocelot.h>
#include <soc/mscc/ocelot.h>
// SPDX-License-Identifier: GPL-2.0
-/* Copyright 2020-2021 NXP Semiconductors
+/* Copyright 2020-2021 NXP
*
* An implementation of the software-defined tag_8021q.c tagger format, which
* also preserves full functionality under a vlan_filtering bridge. It does
rcu_assign_pointer(old->nh_grp, newg);
if (newg->resilient) {
+ /* Make sure concurrent readers are not using 'oldg' anymore. */
+ synchronize_net();
rcu_assign_pointer(oldg->res_table, tmp_table);
rcu_assign_pointer(oldg->spare->res_table, tmp_table);
}
};
static int nexthops_dump(struct net *net, struct notifier_block *nb,
+ enum nexthop_event_type event_type,
struct netlink_ext_ack *extack)
{
struct rb_root *root = &net->nexthop.rb_root;
struct nexthop *nh;
nh = rb_entry(node, struct nexthop, rb_node);
- err = call_nexthop_notifier(nb, net, NEXTHOP_EVENT_REPLACE, nh,
- extack);
+ err = call_nexthop_notifier(nb, net, event_type, nh, extack);
if (err)
break;
}
int err;
rtnl_lock();
- err = nexthops_dump(net, nb, extack);
+ err = nexthops_dump(net, nb, NEXTHOP_EVENT_REPLACE, extack);
if (err)
goto unlock;
err = blocking_notifier_chain_register(&net->nexthop.notifier_chain,
int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb)
{
- return blocking_notifier_chain_unregister(&net->nexthop.notifier_chain,
- nb);
+ int err;
+
+ rtnl_lock();
+ err = blocking_notifier_chain_unregister(&net->nexthop.notifier_chain,
+ nb);
+ if (err)
+ goto unlock;
+ nexthops_dump(net, nb, NEXTHOP_EVENT_DEL, NULL);
+unlock:
+ rtnl_unlock();
+ return err;
}
EXPORT_SYMBOL(unregister_nexthop_notifier);
if (dup_sack && (sacked & TCPCB_RETRANS)) {
if (tp->undo_marker && tp->undo_retrans > 0 &&
after(end_seq, tp->undo_marker))
- tp->undo_retrans--;
+ tp->undo_retrans = max_t(int, 0, tp->undo_retrans - pcount);
if ((sacked & TCPCB_SACKED_ACKED) &&
before(start_seq, state->reord))
state->reord = start_seq;
{
int err;
- udp_tunnel_nic_workqueue = alloc_workqueue("udp_tunnel_nic", 0, 0);
+ udp_tunnel_nic_workqueue = alloc_ordered_workqueue("udp_tunnel_nic", 0);
if (!udp_tunnel_nic_workqueue)
return -ENOMEM;
int err = -ENOMEM;
int allow_create = 1;
int replace_required = 0;
- int sernum = fib6_new_sernum(info->nl_net);
if (info->nlh) {
if (!(info->nlh->nlmsg_flags & NLM_F_CREATE))
if (!err) {
if (rt->nh)
list_add(&rt->nh_list, &rt->nh->f6i_list);
- __fib6_update_sernum_upto_root(rt, sernum);
+ __fib6_update_sernum_upto_root(rt, fib6_new_sernum(info->nl_net));
fib6_start_gc(info->nl_net, rt);
}
}
if (tunnel->version == L2TP_HDR_VER_3 &&
- l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr))
+ l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr)) {
+ l2tp_session_dec_refcount(session);
goto invalid;
+ }
l2tp_recv_common(session, skb, ptr, optr, hdrflags, length);
l2tp_session_dec_refcount(session);
{
struct mctp_route *rt;
+ rcu_read_lock();
list_for_each_entry_rcu(rt, &net->mctp.routes, list)
mctp_route_release(rt);
+ rcu_read_unlock();
}
static struct pernet_operations mctp_net_ops = {
goto alloc_skb;
}
- must_collapse = (info->size_goal - skb->len > 0) &&
+ must_collapse = (info->size_goal > skb->len) &&
(skb_shinfo(skb)->nr_frags < sysctl_max_skb_frags);
if (must_collapse) {
size_bias = skb->len;
}
alloc_skb:
- if (!must_collapse && !ssk->sk_tx_skb_cache &&
+ if (!must_collapse &&
!mptcp_alloc_tx_skb(sk, ssk, info->data_lock_held))
return 0;
* Copyright (C) 2011, <lokec@ccs.neu.edu>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/ethtool.h>
#include <linux/types.h>
#include <linux/mm.h>
goto out_rel;
}
/* get address to which the internal TCP socket is bound */
- kernel_getsockname(clcsock, (struct sockaddr *)&addrs);
+ if (kernel_getsockname(clcsock, (struct sockaddr *)&addrs) < 0)
+ goto out_rel;
/* analyze IP specific data of net_device belonging to TCP socket */
addr6 = (struct sockaddr_in6 *)&addrs;
rcu_read_lock();
abort_work);
struct smc_sock *smc = container_of(conn, struct smc_sock, conn);
+ lock_sock(&smc->sk);
smc_conn_kill(conn, true);
+ release_sock(&smc->sk);
sock_put(&smc->sk); /* sock_hold done by schedulers of abort_work */
}
static void tipc_sk_enqueue(struct sk_buff_head *inputq, struct sock *sk,
u32 dport, struct sk_buff_head *xmitq)
{
- unsigned long time_limit = jiffies + 2;
+ unsigned long time_limit = jiffies + usecs_to_jiffies(20000);
struct sk_buff *skb;
unsigned int lim;
atomic_t *dcnt;
other = unix_peer(sk);
if (other && unix_peer(other) != sk &&
- unix_recvq_full(other) &&
+ unix_recvq_full_lockless(other) &&
unix_dgram_peer_wake_me(sk, other))
writable = 0;
else
CLANG_FLAGS += -fintegrated-as
endif
+# By default, clang only warns when it encounters an unknown warning flag or
+# certain optimization flags it knows it has not implemented.
+# Make it behave more like gcc by erroring when these flags are encountered
+# so they can be implemented or wrapped in cc-option.
CLANG_FLAGS += -Werror=unknown-warning-option
+CLANG_FLAGS += -Werror=ignored-optimization-argument
KBUILD_CFLAGS += $(CLANG_FLAGS)
KBUILD_AFLAGS += $(CLANG_FLAGS)
export CLANG_FLAGS
CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
$(call cc-param,asan-globals=1) \
$(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
- $(call cc-param,asan-stack=$(stack_enable)) \
$(call cc-param,asan-instrument-allocas=1)
endif
+CFLAGS_KASAN += $(call cc-param,asan-stack=$(stack_enable))
+
endif # CONFIG_KASAN_GENERIC
ifdef CONFIG_KASAN_SW_TAGS
# Stage 2 is handled by this file and does the following
# 1) Find all modules listed in modules.order
# 2) modpost is then used to
-# 3) create one <module>.mod.c file pr. module
+# 3) create one <module>.mod.c file per module
# 4) create one Module.symvers file with CRC for all exported symbols
# Step 3 is used to place certain information in the module's ELF
REGEX_KCONFIG_DEF = re.compile(DEF)
REGEX_KCONFIG_EXPR = re.compile(EXPR)
REGEX_KCONFIG_STMT = re.compile(STMT)
-REGEX_KCONFIG_HELP = re.compile(r"^\s+help\s*$")
REGEX_FILTER_SYMBOLS = re.compile(r"[A-Za-z0-9]$")
REGEX_NUMERIC = re.compile(r"0[xX][0-9a-fA-F]+|[0-9]+")
REGEX_QUOTES = re.compile("(\"(.*?)\")")
"continue.")
if args.commit:
+ if args.commit.startswith('HEAD'):
+ sys.exit("The --commit option can't use the HEAD ref")
+
args.find = False
if args.ignore:
lines = []
defined = []
references = []
- skip = False
if not os.path.exists(kfile):
return defined, references
if REGEX_KCONFIG_DEF.match(line):
symbol_def = REGEX_KCONFIG_DEF.findall(line)
defined.append(symbol_def[0])
- skip = False
- elif REGEX_KCONFIG_HELP.match(line):
- skip = True
- elif skip:
- # ignore content of help messages
- pass
elif REGEX_KCONFIG_STMT.match(line):
line = REGEX_QUOTES.sub("", line)
symbols = get_symbols_in_line(line)
import os
import re
import subprocess
+import sys
_DEFAULT_OUTPUT = 'compile_commands.json'
_DEFAULT_LOG_LEVEL = 'WARNING'
echo 2.23.0
;;
gcc)
- # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
- # https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
- if [ "$SRCARCH" = arm64 ]; then
- echo 5.1.0
- else
- echo 4.9.0
- fi
+ echo 5.1.0
;;
icc)
# temporary
#define EM_ARCV2 195
#endif
+#ifndef EM_RISCV
+#define EM_RISCV 243
+#endif
+
static uint32_t (*r)(const uint32_t *);
static uint16_t (*r2)(const uint16_t *);
static uint64_t (*r8)(const uint64_t *);
static int selinux_ptrace_traceme(struct task_struct *parent)
{
return avc_has_perm(&selinux_state,
- task_sid_subj(parent), task_sid_obj(current),
+ task_sid_obj(parent), task_sid_obj(current),
SECCLASS_PROCESS, PROCESS__PTRACE, NULL);
}
struct ipc_security_struct *isec;
struct msg_security_struct *msec;
struct common_audit_data ad;
- u32 sid = task_sid_subj(target);
+ u32 sid = task_sid_obj(target);
int rc;
isec = selinux_ipc(msq);
const char *caller)
{
struct smk_audit_info ad;
- struct smack_known *skp = smk_of_task_struct_subj(p);
+ struct smack_known *skp = smk_of_task_struct_obj(p);
int rc;
smk_ad_init(&ad, caller, LSM_AUDIT_DATA_TASK);
*/
static int smack_getprocattr(struct task_struct *p, char *name, char **value)
{
- struct smack_known *skp = smk_of_task_struct_subj(p);
+ struct smack_known *skp = smk_of_task_struct_obj(p);
char *cp;
int slen;
/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __NR_userfaultfd
-#define __NR_userfaultfd 282
-#endif
#ifndef __NR_perf_event_open
# define __NR_perf_event_open 298
#endif
((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr)
#define __get_next(t, insn) \
- ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); leXX_to_cpu(t, r); })
+ ({ t r; memcpy(&r, insn->next_byte, sizeof(t)); insn->next_byte += sizeof(t); leXX_to_cpu(t, r); })
#define __peek_nbyte_next(t, insn, n) \
- ({ t r = *(t*)((insn)->next_byte + n); leXX_to_cpu(t, r); })
+ ({ t r; memcpy(&r, (insn)->next_byte + n, sizeof(t)); leXX_to_cpu(t, r); })
#define get_next(t, insn) \
({ if (unlikely(!validate_next(t, insn, 0))) goto err_out; __get_next(t, insn); })
#include <stdlib.h>
-#define __pa(addr) (addr)
#define SMP_CACHE_BYTES 0
#define memblock_alloc(size, align) malloc(size)
-#define memblock_free(paddr, size) free(paddr)
+#define memblock_free_ptr(paddr, size) free(paddr)
#endif
# define __fallthrough __attribute__ ((fallthrough))
#endif
-#if GCC_VERSION >= 40300
+#if __has_attribute(__error__)
# define __compiletime_error(message) __attribute__((error(message)))
-#endif /* GCC_VERSION >= 40300 */
+#endif
/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
#endif
#define __printf(a, b) __attribute__((format(printf, a, b)))
#define __scanf(a, b) __attribute__((format(scanf, a, b)))
-
-#if GCC_VERSION >= 50100
-#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
-#endif
#include <linux/compiler.h>
/*
- * In the fallback code below, we need to compute the minimum and
- * maximum values representable in a given type. These macros may also
- * be useful elsewhere, so we provide them outside the
- * COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW block.
- *
- * It would seem more obvious to do something like
+ * We need to compute the minimum and maximum values representable in a given
+ * type. These macros may also be useful elsewhere. It would seem more obvious
+ * to do something like:
*
* #define type_min(T) (T)(is_signed_type(T) ? (T)1 << (8*sizeof(T)-1) : 0)
* #define type_max(T) (T)(is_signed_type(T) ? ((T)1 << (8*sizeof(T)-1)) - 1 : ~(T)0)
#define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T)))
#define type_min(T) ((T)((T)-type_max(T)-(T)1))
-
-#ifdef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW
/*
* For simplicity and code hygiene, the fallback code below insists on
* a, b and *d having the same type (similar to the min() and max()
__builtin_mul_overflow(__a, __b, __d); \
})
-#else
-
-
-/* Checking for unsigned overflow is relatively easy without causing UB. */
-#define __unsigned_add_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = __a + __b; \
- *__d < __a; \
-})
-#define __unsigned_sub_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = __a - __b; \
- __a < __b; \
-})
-/*
- * If one of a or b is a compile-time constant, this avoids a division.
- */
-#define __unsigned_mul_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = __a * __b; \
- __builtin_constant_p(__b) ? \
- __b > 0 && __a > type_max(typeof(__a)) / __b : \
- __a > 0 && __b > type_max(typeof(__b)) / __a; \
-})
-
-/*
- * For signed types, detecting overflow is much harder, especially if
- * we want to avoid UB. But the interface of these macros is such that
- * we must provide a result in *d, and in fact we must produce the
- * result promised by gcc's builtins, which is simply the possibly
- * wrapped-around value. Fortunately, we can just formally do the
- * operations in the widest relevant unsigned type (u64) and then
- * truncate the result - gcc is smart enough to generate the same code
- * with and without the (u64) casts.
- */
-
-/*
- * Adding two signed integers can overflow only if they have the same
- * sign, and overflow has happened iff the result has the opposite
- * sign.
- */
-#define __signed_add_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = (u64)__a + (u64)__b; \
- (((~(__a ^ __b)) & (*__d ^ __a)) \
- & type_min(typeof(__a))) != 0; \
-})
-
-/*
- * Subtraction is similar, except that overflow can now happen only
- * when the signs are opposite. In this case, overflow has happened if
- * the result has the opposite sign of a.
- */
-#define __signed_sub_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = (u64)__a - (u64)__b; \
- ((((__a ^ __b)) & (*__d ^ __a)) \
- & type_min(typeof(__a))) != 0; \
-})
-
-/*
- * Signed multiplication is rather hard. gcc always follows C99, so
- * division is truncated towards 0. This means that we can write the
- * overflow check like this:
- *
- * (a > 0 && (b > MAX/a || b < MIN/a)) ||
- * (a < -1 && (b > MIN/a || b < MAX/a) ||
- * (a == -1 && b == MIN)
- *
- * The redundant casts of -1 are to silence an annoying -Wtype-limits
- * (included in -Wextra) warning: When the type is u8 or u16, the
- * __b_c_e in check_mul_overflow obviously selects
- * __unsigned_mul_overflow, but unfortunately gcc still parses this
- * code and warns about the limited range of __b.
- */
-
-#define __signed_mul_overflow(a, b, d) ({ \
- typeof(a) __a = (a); \
- typeof(b) __b = (b); \
- typeof(d) __d = (d); \
- typeof(a) __tmax = type_max(typeof(a)); \
- typeof(a) __tmin = type_min(typeof(a)); \
- (void) (&__a == &__b); \
- (void) (&__a == __d); \
- *__d = (u64)__a * (u64)__b; \
- (__b > 0 && (__a > __tmax/__b || __a < __tmin/__b)) || \
- (__b < (typeof(__b))-1 && (__a > __tmin/__b || __a < __tmax/__b)) || \
- (__b == (typeof(__b))-1 && __a == __tmin); \
-})
-
-
-#define check_add_overflow(a, b, d) \
- __builtin_choose_expr(is_signed_type(typeof(a)), \
- __signed_add_overflow(a, b, d), \
- __unsigned_add_overflow(a, b, d))
-
-#define check_sub_overflow(a, b, d) \
- __builtin_choose_expr(is_signed_type(typeof(a)), \
- __signed_sub_overflow(a, b, d), \
- __unsigned_sub_overflow(a, b, d))
-
-#define check_mul_overflow(a, b, d) \
- __builtin_choose_expr(is_signed_type(typeof(a)), \
- __signed_mul_overflow(a, b, d), \
- __unsigned_mul_overflow(a, b, d))
-
-
-#endif /* COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW */
-
/**
* array_size() - Calculate size of 2-dimensional array.
*
free(evsel);
}
-#define FD(e, x, y) (*(int *) xyarray__entry(e->fd, x, y))
+#define FD(e, x, y) ((int *) xyarray__entry(e->fd, x, y))
#define MMAP(e, x, y) (e->mmap ? ((struct perf_mmap *) xyarray__entry(e->mmap, x, y)) : NULL)
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
int cpu, thread;
for (cpu = 0; cpu < ncpus; cpu++) {
for (thread = 0; thread < nthreads; thread++) {
- FD(evsel, cpu, thread) = -1;
+ int *fd = FD(evsel, cpu, thread);
+
+ if (fd)
+ *fd = -1;
}
}
}
static int get_group_fd(struct perf_evsel *evsel, int cpu, int thread, int *group_fd)
{
struct perf_evsel *leader = evsel->leader;
- int fd;
+ int *fd;
if (evsel == leader) {
*group_fd = -1;
return -ENOTCONN;
fd = FD(leader, cpu, thread);
- if (fd == -1)
+ if (fd == NULL || *fd == -1)
return -EBADF;
- *group_fd = fd;
+ *group_fd = *fd;
return 0;
}
for (cpu = 0; cpu < cpus->nr; cpu++) {
for (thread = 0; thread < threads->nr; thread++) {
- int fd, group_fd;
+ int fd, group_fd, *evsel_fd;
+
+ evsel_fd = FD(evsel, cpu, thread);
+ if (evsel_fd == NULL)
+ return -EINVAL;
err = get_group_fd(evsel, cpu, thread, &group_fd);
if (err < 0)
if (fd < 0)
return -errno;
- FD(evsel, cpu, thread) = fd;
+ *evsel_fd = fd;
}
}
int thread;
for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
- if (FD(evsel, cpu, thread) >= 0)
- close(FD(evsel, cpu, thread));
- FD(evsel, cpu, thread) = -1;
+ int *fd = FD(evsel, cpu, thread);
+
+ if (fd && *fd >= 0) {
+ close(*fd);
+ *fd = -1;
+ }
}
}
for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) {
for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
- int fd = FD(evsel, cpu, thread);
- struct perf_mmap *map = MMAP(evsel, cpu, thread);
+ int *fd = FD(evsel, cpu, thread);
- if (fd < 0)
+ if (fd == NULL || *fd < 0)
continue;
- perf_mmap__munmap(map);
+ perf_mmap__munmap(MMAP(evsel, cpu, thread));
}
}
for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) {
for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
- int fd = FD(evsel, cpu, thread);
- struct perf_mmap *map = MMAP(evsel, cpu, thread);
+ int *fd = FD(evsel, cpu, thread);
+ struct perf_mmap *map;
- if (fd < 0)
+ if (fd == NULL || *fd < 0)
continue;
+ map = MMAP(evsel, cpu, thread);
perf_mmap__init(map, NULL, false, NULL);
- ret = perf_mmap__mmap(map, &mp, fd, cpu);
+ ret = perf_mmap__mmap(map, &mp, *fd, cpu);
if (ret) {
perf_evsel__munmap(evsel);
return ret;
void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu, int thread)
{
- if (FD(evsel, cpu, thread) < 0 || MMAP(evsel, cpu, thread) == NULL)
+ int *fd = FD(evsel, cpu, thread);
+
+ if (fd == NULL || *fd < 0 || MMAP(evsel, cpu, thread) == NULL)
return NULL;
return MMAP(evsel, cpu, thread)->base;
struct perf_counts_values *count)
{
size_t size = perf_evsel__read_size(evsel);
+ int *fd = FD(evsel, cpu, thread);
memset(count, 0, sizeof(*count));
- if (FD(evsel, cpu, thread) < 0)
+ if (fd == NULL || *fd < 0)
return -EINVAL;
if (MMAP(evsel, cpu, thread) &&
!perf_mmap__read_self(MMAP(evsel, cpu, thread), count))
return 0;
- if (readn(FD(evsel, cpu, thread), count->values, size) <= 0)
+ if (readn(*fd, count->values, size) <= 0)
return -errno;
return 0;
int thread;
for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
- int fd = FD(evsel, cpu, thread),
- err = ioctl(fd, ioc, arg);
+ int err;
+ int *fd = FD(evsel, cpu, thread);
+
+ if (fd == NULL || *fd < 0)
+ return -1;
+
+ err = ioctl(*fd, ioc, arg);
if (err)
return err;
The EH Frame header follows the Linux Standard Base (LSB) specification as described in the document at https://refspecs.linuxfoundation.org/LSB_1.3.0/gLSB/gLSB/ehframehdr.html
-The EH Frame follows the LSB specicfication as described in the document at https://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/ehframechpt.html
+The EH Frame follows the LSB specification as described in the document at https://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/ehframechpt.html
NOTE: The mapped_size is generally either the same as unwind_data_size (if the unwinding data was mapped in memory by the running process) or zero (if the unwinding data is not mapped by the process). If the unwinding data was not mapped, then only the EH Frame Header will be read, which can be used to specify FP based unwinding for a function which does not have unwinding information.
User can specify how to sort offsets for cacheline.
Following fields are available and governs the final
-output fields set for caheline offsets output:
+output fields set for cacheline offsets output:
tid - coalesced by process TIDs
pid - coalesced by process PIDs
"Transactions" events correspond to the start or end of transactions. The
'flags' field can be used in perf script to determine whether the event is a
-tranasaction start, commit or abort.
+transaction start, commit or abort.
Note that "instructions", "branches" and "transactions" events depend on code
flow packets which can be disabled by using the config term "branch=0". Refer
-f::
--force::
- Don't complan, do it.
+ Don't complain, do it.
REPORT OPTIONS
--------------
Traces meant to be processed using a script should be recorded with
the above option: -a to enable system-wide collection.
-The format file for the sched_wakep event defines the following fields
+The format file for the sched_wakeup event defines the following fields
(see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format):
----
Traces meant to be processed using a script should be recorded with
the above option: -a to enable system-wide collection.
-The format file for the sched_wakep event defines the following fields
+The format file for the sched_wakeup event defines the following fields
(see /sys/kernel/debug/tracing/events/sched/sched_wakeup/format):
----
Print metrics or metricgroups specified in a comma separated list.
For a group all metrics from the group are added.
The events from the metrics are automatically measured.
-See perf list output for the possble metrics and metricgroups.
+See perf list output for the possible metrics and metricgroups.
-A::
--no-aggr::
-----------------------------------
Intel CPUs (since Sandy Bridge and Silvermont) support a TopDown
-methology to break down CPU pipeline execution into 4 bottlenecks:
+methodology to break down CPU pipeline execution into 4 bottlenecks:
frontend bound, backend bound, bad speculation, retiring.
For more details on Topdown see [1][5]
#include <linux/coresight-pmu.h>
#include <linux/zalloc.h>
-#include "../../util/auxtrace.h"
-#include "../../util/debug.h"
-#include "../../util/evlist.h"
-#include "../../util/pmu.h"
+#include "../../../util/auxtrace.h"
+#include "../../../util/debug.h"
+#include "../../../util/evlist.h"
+#include "../../../util/pmu.h"
#include "cs-etm.h"
#include "arm-spe.h"
#include <linux/zalloc.h>
#include "cs-etm.h"
-#include "../../util/debug.h"
-#include "../../util/record.h"
-#include "../../util/auxtrace.h"
-#include "../../util/cpumap.h"
-#include "../../util/event.h"
-#include "../../util/evlist.h"
-#include "../../util/evsel.h"
-#include "../../util/perf_api_probe.h"
-#include "../../util/evsel_config.h"
-#include "../../util/pmu.h"
-#include "../../util/cs-etm.h"
+#include "../../../util/debug.h"
+#include "../../../util/record.h"
+#include "../../../util/auxtrace.h"
+#include "../../../util/cpumap.h"
+#include "../../../util/event.h"
+#include "../../../util/evlist.h"
+#include "../../../util/evsel.h"
+#include "../../../util/perf_api_probe.h"
+#include "../../../util/evsel_config.h"
+#include "../../../util/pmu.h"
+#include "../../../util/cs-etm.h"
#include <internal/lib.h> // page_size
-#include "../../util/session.h"
+#include "../../../util/session.h"
#include <errno.h>
#include <stdlib.h>
// SPDX-License-Identifier: GPL-2.0
-#include "../../util/perf_regs.h"
+#include "../../../util/perf_regs.h"
const struct sample_reg sample_reg_masks[] = {
SMPL_REG_END
#include <linux/string.h>
#include "arm-spe.h"
-#include "../../util/pmu.h"
+#include "../../../util/pmu.h"
struct perf_event_attr
*perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
// SPDX-License-Identifier: GPL-2.0
#include <elfutils/libdwfl.h>
-#include "../../util/unwind-libdw.h"
-#include "../../util/perf_regs.h"
-#include "../../util/event.h"
+#include "../../../util/unwind-libdw.h"
+#include "../../../util/perf_regs.h"
+#include "../../../util/event.h"
bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
{
#include <errno.h>
#include <libunwind.h>
#include "perf_regs.h"
-#include "../../util/unwind.h"
-#include "../../util/debug.h"
+#include "../../../util/unwind.h"
+#include "../../../util/debug.h"
int libunwind__arch_reg_id(int regnum)
{
u8 die = ((struct iio_root_port *)evsel->priv)->die;
struct perf_counts_values *count = perf_counts(evsel->counts, die, 0);
- if (count->run && count->ena) {
+ if (count && count->run && count->ena) {
if (evsel->prev_raw_counts && !out->force_header) {
struct perf_counts_values *prev_count =
perf_counts(evsel->prev_raw_counts, die, 0);
return OUTPUT_TYPE_OTHER;
}
-static inline unsigned int attr_type(unsigned int type)
-{
- switch (type) {
- case OUTPUT_TYPE_SYNTH:
- return PERF_TYPE_SYNTH;
- default:
- return type;
- }
-}
-
static bool output_set_by_user(void)
{
int j;
output[type].print_ip_opts |= EVSEL__PRINT_SRCLINE;
}
+static struct evsel *find_first_output_type(struct evlist *evlist,
+ unsigned int type)
+{
+ struct evsel *evsel;
+
+ evlist__for_each_entry(evlist, evsel) {
+ if (output_type(evsel->core.attr.type) == (int)type)
+ return evsel;
+ }
+ return NULL;
+}
+
/*
* verify all user requested events exist and the samples
* have the expected data
struct evsel *evsel;
for (j = 0; j < OUTPUT_TYPE_MAX; ++j) {
- evsel = perf_session__find_first_evtype(session, attr_type(j));
+ evsel = find_first_output_type(session->evlist, j);
/*
* even if fields is set to 0 (ie., show nothing) event must
goto out;
} else if (verbose)
iostat_list(evsel_list, &stat_config);
+ if (iostat_mode == IOSTAT_RUN && !target__has_cpu(&target))
+ target.system_wide = true;
}
if (add_default_attributes())
{
"EventCode": "0x4e010",
"EventName": "PM_GCT_NOSLOT_IC_L3MISS",
- "BriefDescription": "Gct empty for this thread due to icach l3 miss",
+ "BriefDescription": "Gct empty for this thread due to icache l3 miss",
"PublicDescription": ""
},
{
struct thread *thread, struct state *state)
{
struct addr_location al;
- unsigned char buf1[BUFSZ];
- unsigned char buf2[BUFSZ];
+ unsigned char buf1[BUFSZ] = {0};
+ unsigned char buf2[BUFSZ] = {0};
size_t ret_len;
u64 objdump_addr;
const char *objdump_name;
/* For bsearch. We try to unwind functions in shared object. */
#include <stdlib.h>
+/*
+ * The test will assert frames are on the stack but tail call optimizations lose
+ * the frame of the caller. Clang can disable this optimization on a called
+ * function but GCC currently (11/2020) lacks this attribute. The barrier is
+ * used to inhibit tail calls in these cases.
+ */
+#ifdef __has_attribute
+#if __has_attribute(disable_tail_calls)
+#define NO_TAIL_CALL_ATTRIBUTE __attribute__((disable_tail_calls))
+#define NO_TAIL_CALL_BARRIER
+#endif
+#endif
+#ifndef NO_TAIL_CALL_ATTRIBUTE
+#define NO_TAIL_CALL_ATTRIBUTE
+#define NO_TAIL_CALL_BARRIER __asm__ __volatile__("" : : : "memory");
+#endif
+
static int mmap_handler(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample,
return strcmp((const char *) symbol, funcs[idx]);
}
-noinline int test_dwarf_unwind__thread(struct thread *thread)
+NO_TAIL_CALL_ATTRIBUTE noinline int test_dwarf_unwind__thread(struct thread *thread)
{
struct perf_sample sample;
unsigned long cnt = 0;
static int global_unwind_retval = -INT_MAX;
-noinline int test_dwarf_unwind__compare(void *p1, void *p2)
+NO_TAIL_CALL_ATTRIBUTE noinline int test_dwarf_unwind__compare(void *p1, void *p2)
{
/* Any possible value should be 'thread' */
struct thread *thread = *(struct thread **)p1;
return p1 - p2;
}
-noinline int test_dwarf_unwind__krava_3(struct thread *thread)
+NO_TAIL_CALL_ATTRIBUTE noinline int test_dwarf_unwind__krava_3(struct thread *thread)
{
struct thread *array[2] = {thread, thread};
void *fp = &bsearch;
return global_unwind_retval;
}
-noinline int test_dwarf_unwind__krava_2(struct thread *thread)
+NO_TAIL_CALL_ATTRIBUTE noinline int test_dwarf_unwind__krava_2(struct thread *thread)
{
- return test_dwarf_unwind__krava_3(thread);
+ int ret;
+
+ ret = test_dwarf_unwind__krava_3(thread);
+ NO_TAIL_CALL_BARRIER;
+ return ret;
}
-noinline int test_dwarf_unwind__krava_1(struct thread *thread)
+NO_TAIL_CALL_ATTRIBUTE noinline int test_dwarf_unwind__krava_1(struct thread *thread)
{
- return test_dwarf_unwind__krava_2(thread);
+ int ret;
+
+ ret = test_dwarf_unwind__krava_2(thread);
+ NO_TAIL_CALL_BARRIER;
+ return ret;
}
int test__dwarf_unwind(struct test *test __maybe_unused, int subtest __maybe_unused)
}
void ui_browser__mark_fused(struct ui_browser *browser, unsigned int column,
- unsigned int row, bool arrow_down)
+ unsigned int row, int diff, bool arrow_down)
{
- unsigned int end_row;
+ int end_row;
- if (row >= browser->top_idx)
- end_row = row - browser->top_idx;
- else
+ if (diff <= 0)
return;
SLsmg_set_char_set(1);
if (arrow_down) {
+ if (row + diff <= browser->top_idx)
+ return;
+
+ end_row = row + diff - browser->top_idx;
ui_browser__gotorc(browser, end_row, column - 1);
- SLsmg_write_char(SLSMG_ULCORN_CHAR);
- ui_browser__gotorc(browser, end_row, column);
- SLsmg_draw_hline(2);
- ui_browser__gotorc(browser, end_row + 1, column - 1);
SLsmg_write_char(SLSMG_LTEE_CHAR);
+
+ while (--end_row >= 0 && end_row > (int)(row - browser->top_idx)) {
+ ui_browser__gotorc(browser, end_row, column - 1);
+ SLsmg_draw_vline(1);
+ }
+
+ end_row = (int)(row - browser->top_idx);
+ if (end_row >= 0) {
+ ui_browser__gotorc(browser, end_row, column - 1);
+ SLsmg_write_char(SLSMG_ULCORN_CHAR);
+ ui_browser__gotorc(browser, end_row, column);
+ SLsmg_draw_hline(2);
+ }
} else {
+ if (row < browser->top_idx)
+ return;
+
+ end_row = row - browser->top_idx;
ui_browser__gotorc(browser, end_row, column - 1);
SLsmg_write_char(SLSMG_LTEE_CHAR);
ui_browser__gotorc(browser, end_row, column);
void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
u64 start, u64 end);
void ui_browser__mark_fused(struct ui_browser *browser, unsigned int column,
- unsigned int row, bool arrow_down);
+ unsigned int row, int diff, bool arrow_down);
void __ui_browser__show_title(struct ui_browser *browser, const char *title);
void ui_browser__show_title(struct ui_browser *browser, const char *title);
int ui_browser__show(struct ui_browser *browser, const char *title,
ab->selection = al;
}
-static bool is_fused(struct annotate_browser *ab, struct disasm_line *cursor)
+static int is_fused(struct annotate_browser *ab, struct disasm_line *cursor)
{
struct disasm_line *pos = list_prev_entry(cursor, al.node);
const char *name;
+ int diff = 1;
+
+ while (pos && pos->al.offset == -1) {
+ pos = list_prev_entry(pos, al.node);
+ if (!ab->opts->hide_src_code)
+ diff++;
+ }
if (!pos)
- return false;
+ return 0;
if (ins__is_lock(&pos->ins))
name = pos->ops.locked.ins.name;
name = pos->ins.name;
if (!name || !cursor->ins.name)
- return false;
+ return 0;
- return ins__is_fused(ab->arch, name, cursor->ins.name);
+ if (ins__is_fused(ab->arch, name, cursor->ins.name))
+ return diff;
+ return 0;
}
static void annotate_browser__draw_current_jump(struct ui_browser *browser)
struct annotation *notes = symbol__annotation(sym);
u8 pcnt_width = annotation__pcnt_width(notes);
int width;
+ int diff = 0;
/* PLT symbols contain external offsets */
if (strstr(sym->name, "@plt"))
pcnt_width + 2 + notes->widths.addr + width,
from, to);
- if (is_fused(ab, cursor)) {
+ diff = is_fused(ab, cursor);
+ if (diff > 0) {
ui_browser__mark_fused(browser,
pcnt_width + 3 + notes->widths.addr + width,
- from - 1,
- to > from);
+ from - diff, diff, to > from);
}
}
struct btf * __weak btf__load_from_kernel_by_id(__u32 id)
{
struct btf *btf;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
int err = btf__get_from_id(id, &btf);
+#pragma GCC diagnostic pop
return err ? ERR_PTR(err) : btf;
}
section->name, item->name);
ret = fn(key, value, data);
if (ret < 0) {
- pr_err("Error: wrong config key-value pair %s=%s\n",
+ pr_err("Error in the given config file: wrong config key-value pair %s=%s\n",
key, value);
/*
* Can't be just a 'break', as perf_config_set__for_each_entry()
al.filtered = 0;
al.sym = NULL;
+ al.srcline = NULL;
if (!cpumode) {
thread__find_cpumode_addr_location(thread, ip, &al);
} else {
td->feats_supported |= FEAT_SSBS;
if (getauxval(AT_HWCAP) & HWCAP_SVE)
td->feats_supported |= FEAT_SVE;
- if (feats_ok(td))
+ if (feats_ok(td)) {
fprintf(stderr,
"Required Features: [%s] supported\n",
feats_to_string(td->feats_required &
td->feats_supported));
- else
+ } else {
fprintf(stderr,
"Required Features: [%s] NOT supported\n",
feats_to_string(td->feats_required &
~td->feats_supported));
+ td->result = KSFT_SKIP;
+ return 0;
+ }
}
/* Perform test specific additional initialization */
#include <unistd.h>
#include <ftw.h>
-
#include "cgroup_helpers.h"
/*
* To avoid relying on the system setup, when setup_cgroup_env is called
- * we create a new mount namespace, and cgroup namespace. The cgroup2
- * root is mounted at CGROUP_MOUNT_PATH
- *
- * Unfortunately, most people don't have cgroupv2 enabled at this point in time.
- * It's easier to create our own mount namespace and manage it ourselves.
+ * we create a new mount namespace, and cgroup namespace. The cgroupv2
+ * root is mounted at CGROUP_MOUNT_PATH. Unfortunately, most people don't
+ * have cgroupv2 enabled at this point in time. It's easier to create our
+ * own mount namespace and manage it ourselves. We assume /mnt exists.
*
- * We assume /mnt exists.
+ * Related cgroupv1 helpers are named *classid*(), since we only use the
+ * net_cls controller for tagging net_cls.classid. We assume the default
+ * mount under /sys/fs/cgroup/net_cls, which should be the case for the
+ * vast majority of users.
*/
#define WALK_FD_LIMIT 16
+
#define CGROUP_MOUNT_PATH "/mnt"
+#define CGROUP_MOUNT_DFLT "/sys/fs/cgroup"
+#define NETCLS_MOUNT_PATH CGROUP_MOUNT_DFLT "/net_cls"
#define CGROUP_WORK_DIR "/cgroup-test-work-dir"
+
#define format_cgroup_path(buf, path) \
snprintf(buf, sizeof(buf), "%s%s%s", CGROUP_MOUNT_PATH, \
CGROUP_WORK_DIR, path)
+#define format_classid_path(buf) \
+ snprintf(buf, sizeof(buf), "%s%s", NETCLS_MOUNT_PATH, \
+ CGROUP_WORK_DIR)
+
/**
* enable_all_controllers() - Enable all available cgroup v2 controllers
*
return 0;
}
-
-static int join_cgroup_from_top(char *cgroup_path)
+static int join_cgroup_from_top(const char *cgroup_path)
{
char cgroup_procs_path[PATH_MAX + 1];
pid_t pid = getpid();
}
return cg_fd;
}
+
+/**
+ * setup_classid_environment() - Setup the cgroupv1 net_cls environment
+ *
+ * After calling this function, cleanup_classid_environment should be called
+ * once testing is complete.
+ *
+ * This function will print an error to stderr and return 1 if it is unable
+ * to setup the cgroup environment. If setup is successful, 0 is returned.
+ */
+int setup_classid_environment(void)
+{
+ char cgroup_workdir[PATH_MAX + 1];
+
+ format_classid_path(cgroup_workdir);
+
+ if (mount("tmpfs", CGROUP_MOUNT_DFLT, "tmpfs", 0, NULL) &&
+ errno != EBUSY) {
+ log_err("mount cgroup base");
+ return 1;
+ }
+
+ if (mkdir(NETCLS_MOUNT_PATH, 0777) && errno != EEXIST) {
+ log_err("mkdir cgroup net_cls");
+ return 1;
+ }
+
+ if (mount("net_cls", NETCLS_MOUNT_PATH, "cgroup", 0, "net_cls") &&
+ errno != EBUSY) {
+ log_err("mount cgroup net_cls");
+ return 1;
+ }
+
+ cleanup_classid_environment();
+
+ if (mkdir(cgroup_workdir, 0777) && errno != EEXIST) {
+ log_err("mkdir cgroup work dir");
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * set_classid() - Set a cgroupv1 net_cls classid
+ * @id: the numeric classid
+ *
+ * Writes the passed classid into the cgroup work dir's net_cls.classid
+ * file in order to later on trigger socket tagging.
+ *
+ * On success, it returns 0, otherwise on failure it returns 1. If there
+ * is a failure, it prints the error to stderr.
+ */
+int set_classid(unsigned int id)
+{
+ char cgroup_workdir[PATH_MAX - 42];
+ char cgroup_classid_path[PATH_MAX + 1];
+ int fd, rc = 0;
+
+ format_classid_path(cgroup_workdir);
+ snprintf(cgroup_classid_path, sizeof(cgroup_classid_path),
+ "%s/net_cls.classid", cgroup_workdir);
+
+ fd = open(cgroup_classid_path, O_WRONLY);
+ if (fd < 0) {
+ log_err("Opening cgroup classid: %s", cgroup_classid_path);
+ return 1;
+ }
+
+ if (dprintf(fd, "%u\n", id) < 0) {
+ log_err("Setting cgroup classid");
+ rc = 1;
+ }
+
+ close(fd);
+ return rc;
+}
+
+/**
+ * join_classid() - Join a cgroupv1 net_cls classid
+ *
+ * This function expects the cgroup work dir to be already created, as we
+ * join it here. This causes the process sockets to be tagged with the given
+ * net_cls classid.
+ *
+ * On success, it returns 0, otherwise on failure it returns 1.
+ */
+int join_classid(void)
+{
+ char cgroup_workdir[PATH_MAX + 1];
+
+ format_classid_path(cgroup_workdir);
+ return join_cgroup_from_top(cgroup_workdir);
+}
+
+/**
+ * cleanup_classid_environment() - Cleanup the cgroupv1 net_cls environment
+ *
+ * At call time, it moves the calling process to the root cgroup, and then
+ * runs the deletion process.
+ *
+ * On failure, it will print an error to stderr, and try to continue.
+ */
+void cleanup_classid_environment(void)
+{
+ char cgroup_workdir[PATH_MAX + 1];
+
+ format_classid_path(cgroup_workdir);
+ join_cgroup_from_top(NETCLS_MOUNT_PATH);
+ nftw(cgroup_workdir, nftwfunc, WALK_FD_LIMIT, FTW_DEPTH | FTW_MOUNT);
+}
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __CGROUP_HELPERS_H
#define __CGROUP_HELPERS_H
+
#include <errno.h>
#include <string.h>
#define log_err(MSG, ...) fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \
__FILE__, __LINE__, clean_errno(), ##__VA_ARGS__)
-
+/* cgroupv2 related */
int cgroup_setup_and_join(const char *path);
int create_and_get_cgroup(const char *path);
+unsigned long long get_cgroup_id(const char *path);
+
int join_cgroup(const char *path);
+
int setup_cgroup_environment(void);
void cleanup_cgroup_environment(void);
-unsigned long long get_cgroup_id(const char *path);
-#endif
+/* cgroupv1 related */
+int set_classid(unsigned int id);
+int join_classid(void);
+
+int setup_classid_environment(void);
+void cleanup_classid_environment(void);
+
+#endif /* __CGROUP_HELPERS_H */
static int connect_fd_to_addr(int fd,
const struct sockaddr_storage *addr,
- socklen_t addrlen)
+ socklen_t addrlen, const bool must_fail)
{
- if (connect(fd, (const struct sockaddr *)addr, addrlen)) {
- log_err("Failed to connect to server");
- return -1;
+ int ret;
+
+ errno = 0;
+ ret = connect(fd, (const struct sockaddr *)addr, addrlen);
+ if (must_fail) {
+ if (!ret) {
+ log_err("Unexpected success to connect to server");
+ return -1;
+ }
+ if (errno != EPERM) {
+ log_err("Unexpected error from connect to server");
+ return -1;
+ }
+ } else {
+ if (ret) {
+ log_err("Failed to connect to server");
+ return -1;
+ }
}
return 0;
strlen(opts->cc) + 1))
goto error_close;
- if (connect_fd_to_addr(fd, &addr, addrlen))
+ if (connect_fd_to_addr(fd, &addr, addrlen, opts->must_fail))
goto error_close;
return fd;
return -1;
}
- if (connect_fd_to_addr(client_fd, &addr, len))
+ if (connect_fd_to_addr(client_fd, &addr, len, false))
return -1;
return 0;
struct network_helper_opts {
const char *cc;
int timeout_ms;
+ bool must_fail;
};
/* ipv4 test vector */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "connect4_dropper.skel.h"
+
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+static int run_test(int cgroup_fd, int server_fd, bool classid)
+{
+ struct network_helper_opts opts = {
+ .must_fail = true,
+ };
+ struct connect4_dropper *skel;
+ int fd, err = 0;
+
+ skel = connect4_dropper__open_and_load();
+ if (!ASSERT_OK_PTR(skel, "skel_open"))
+ return -1;
+
+ skel->links.connect_v4_dropper =
+ bpf_program__attach_cgroup(skel->progs.connect_v4_dropper,
+ cgroup_fd);
+ if (!ASSERT_OK_PTR(skel->links.connect_v4_dropper, "prog_attach")) {
+ err = -1;
+ goto out;
+ }
+
+ if (classid && !ASSERT_OK(join_classid(), "join_classid")) {
+ err = -1;
+ goto out;
+ }
+
+ fd = connect_to_fd_opts(server_fd, &opts);
+ if (fd < 0)
+ err = -1;
+ else
+ close(fd);
+out:
+ connect4_dropper__destroy(skel);
+ return err;
+}
+
+void test_cgroup_v1v2(void)
+{
+ struct network_helper_opts opts = {};
+ int server_fd, client_fd, cgroup_fd;
+ static const int port = 60123;
+
+ /* Step 1: Check base connectivity works without any BPF. */
+ server_fd = start_server(AF_INET, SOCK_STREAM, NULL, port, 0);
+ if (!ASSERT_GE(server_fd, 0, "server_fd"))
+ return;
+ client_fd = connect_to_fd_opts(server_fd, &opts);
+ if (!ASSERT_GE(client_fd, 0, "client_fd")) {
+ close(server_fd);
+ return;
+ }
+ close(client_fd);
+ close(server_fd);
+
+ /* Step 2: Check BPF policy prog attached to cgroups drops connectivity. */
+ cgroup_fd = test__join_cgroup("/connect_dropper");
+ if (!ASSERT_GE(cgroup_fd, 0, "cgroup_fd"))
+ return;
+ server_fd = start_server(AF_INET, SOCK_STREAM, NULL, port, 0);
+ if (!ASSERT_GE(server_fd, 0, "server_fd")) {
+ close(cgroup_fd);
+ return;
+ }
+ ASSERT_OK(run_test(cgroup_fd, server_fd, false), "cgroup-v2-only");
+ setup_classid_environment();
+ set_classid(42);
+ ASSERT_OK(run_test(cgroup_fd, server_fd, true), "cgroup-v1v2");
+ cleanup_classid_environment();
+ close(server_fd);
+ close(cgroup_fd);
+}
// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#include <test_progs.h>
-#include <linux/ptrace.h>
#include "test_task_pt_regs.skel.h"
void test_task_pt_regs(void)
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define VERDICT_REJECT 0
+#define VERDICT_PROCEED 1
+
+SEC("cgroup/connect4")
+int connect_v4_dropper(struct bpf_sock_addr *ctx)
+{
+ if (ctx->type != SOCK_STREAM)
+ return VERDICT_PROCEED;
+ if (ctx->user_port == bpf_htons(60123))
+ return VERDICT_REJECT;
+ return VERDICT_PROCEED;
+}
+
+char _license[] SEC("license") = "GPL";
// SPDX-License-Identifier: GPL-2.0
-#include <linux/ptrace.h>
-#include <linux/bpf.h>
+#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
-struct pt_regs current_regs = {};
-struct pt_regs ctx_regs = {};
+#define PT_REGS_SIZE sizeof(struct pt_regs)
+
+/*
+ * The kernel struct pt_regs isn't exported in its entirety to userspace.
+ * Pass it as an array to task_pt_regs.c
+ */
+char current_regs[PT_REGS_SIZE] = {};
+char ctx_regs[PT_REGS_SIZE] = {};
int uprobe_res = 0;
SEC("uprobe/trigger_func")
current = bpf_get_current_task_btf();
regs = (struct pt_regs *) bpf_task_pt_regs(current);
- __builtin_memcpy(¤t_regs, regs, sizeof(*regs));
- __builtin_memcpy(&ctx_regs, ctx, sizeof(*ctx));
+ if (bpf_probe_read_kernel(current_regs, PT_REGS_SIZE, regs))
+ return 0;
+ if (bpf_probe_read_kernel(ctx_regs, PT_REGS_SIZE, ctx))
+ return 0;
/* Prove that uprobe was run */
uprobe_res = 1;
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
-# Copyright 2020 NXP Semiconductors
+# Copyright 2020 NXP
WAIT_TIME=1
NUM_NETIFS=4
/x86_64/smm_test
/x86_64/state_test
/x86_64/svm_vmcall_test
+/x86_64/svm_int_ctl_test
/x86_64/sync_regs_test
/x86_64/tsc_msrs_test
/x86_64/userspace_msr_exit_test
/kvm_page_table_test
/memslot_modification_stress_test
/memslot_perf_test
+/rseq_test
/set_memory_region_test
/steal_time
/kvm_binary_stats_test
TEST_GEN_PROGS_x86_64 += x86_64/state_test
TEST_GEN_PROGS_x86_64 += x86_64/vmx_preemption_timer_test
TEST_GEN_PROGS_x86_64 += x86_64/svm_vmcall_test
+TEST_GEN_PROGS_x86_64 += x86_64/svm_int_ctl_test
TEST_GEN_PROGS_x86_64 += x86_64/sync_regs_test
TEST_GEN_PROGS_x86_64 += x86_64/userspace_msr_exit_test
TEST_GEN_PROGS_x86_64 += x86_64/vmx_apic_access_test
TEST_GEN_PROGS_x86_64 += kvm_page_table_test
TEST_GEN_PROGS_x86_64 += memslot_modification_stress_test
TEST_GEN_PROGS_x86_64 += memslot_perf_test
+TEST_GEN_PROGS_x86_64 += rseq_test
TEST_GEN_PROGS_x86_64 += set_memory_region_test
TEST_GEN_PROGS_x86_64 += steal_time
TEST_GEN_PROGS_x86_64 += kvm_binary_stats_test
TEST_GEN_PROGS_aarch64 += dirty_log_perf_test
TEST_GEN_PROGS_aarch64 += kvm_create_max_vcpus
TEST_GEN_PROGS_aarch64 += kvm_page_table_test
+TEST_GEN_PROGS_aarch64 += rseq_test
TEST_GEN_PROGS_aarch64 += set_memory_region_test
TEST_GEN_PROGS_aarch64 += steal_time
TEST_GEN_PROGS_aarch64 += kvm_binary_stats_test
TEST_GEN_PROGS_s390x += dirty_log_test
TEST_GEN_PROGS_s390x += kvm_create_max_vcpus
TEST_GEN_PROGS_s390x += kvm_page_table_test
+TEST_GEN_PROGS_s390x += rseq_test
TEST_GEN_PROGS_s390x += set_memory_region_test
TEST_GEN_PROGS_s390x += kvm_binary_stats_test
printf(" -v: specify the number of vCPUs to run.\n");
printf(" -o: Overlap guest memory accesses instead of partitioning\n"
" them into a separate region of memory for each vCPU.\n");
- printf(" -s: specify the type of memory that should be used to\n"
- " back the guest data region.\n\n");
- backing_src_help();
+ backing_src_help("-s");
puts("");
exit(0);
}
int main(int argc, char *argv[])
{
struct test_params params = {
- .backing_src = VM_MEM_SRC_ANONYMOUS,
+ .backing_src = DEFAULT_VM_MEM_SRC,
.vcpu_memory_bytes = DEFAULT_PER_VCPU_MEM_SIZE,
.vcpus = 1,
};
return NULL;
}
- if (!pollfd[0].revents & POLLIN)
+ if (!(pollfd[0].revents & POLLIN))
continue;
r = read(uffd, &msg, sizeof(msg));
{
puts("");
printf("usage: %s [-h] [-m vm_mode] [-u uffd_mode] [-d uffd_delay_usec]\n"
- " [-b memory] [-t type] [-v vcpus] [-o]\n", name);
+ " [-b memory] [-s type] [-v vcpus] [-o]\n", name);
guest_modes_help();
printf(" -u: use userfaultfd to handle vCPU page faults. Mode is a\n"
" UFFD registration mode: 'MISSING' or 'MINOR'.\n");
printf(" -b: specify the size of the memory region which should be\n"
" demand paged by each vCPU. e.g. 10M or 3G.\n"
" Default: 1G\n");
- printf(" -t: The type of backing memory to use. Default: anonymous\n");
- backing_src_help();
+ backing_src_help("-s");
printf(" -v: specify the number of vCPUs to run.\n");
printf(" -o: Overlap guest memory accesses instead of partitioning\n"
" them into a separate region of memory for each vCPU.\n");
{
int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
struct test_params p = {
- .src_type = VM_MEM_SRC_ANONYMOUS,
+ .src_type = DEFAULT_VM_MEM_SRC,
.partition_vcpu_memory_access = true,
};
int opt;
guest_modes_append_default();
- while ((opt = getopt(argc, argv, "hm:u:d:b:t:v:o")) != -1) {
+ while ((opt = getopt(argc, argv, "hm:u:d:b:s:v:o")) != -1) {
switch (opt) {
case 'm':
guest_modes_cmdline(optarg);
case 'b':
guest_percpu_mem_size = parse_size(optarg);
break;
- case 't':
+ case 's':
p.src_type = parse_backing_src_type(optarg);
break;
case 'v':
if (p.uffd_mode == UFFDIO_REGISTER_MODE_MINOR &&
!backing_src_is_shared(p.src_type)) {
- TEST_FAIL("userfaultfd MINOR mode requires shared memory; pick a different -t");
+ TEST_FAIL("userfaultfd MINOR mode requires shared memory; pick a different -s");
}
for_each_guest_mode(run_test, &p);
toggle_dirty_logging(vm, slots, false);
}
-static void get_dirty_log(struct kvm_vm *vm, int slots, unsigned long *bitmap,
- uint64_t nr_pages)
+static void get_dirty_log(struct kvm_vm *vm, unsigned long *bitmaps[], int slots)
{
- uint64_t slot_pages = nr_pages / slots;
int i;
for (i = 0; i < slots; i++) {
int slot = PERF_TEST_MEM_SLOT_INDEX + i;
- unsigned long *slot_bitmap = bitmap + i * slot_pages;
- kvm_vm_get_dirty_log(vm, slot, slot_bitmap);
+ kvm_vm_get_dirty_log(vm, slot, bitmaps[i]);
}
}
-static void clear_dirty_log(struct kvm_vm *vm, int slots, unsigned long *bitmap,
- uint64_t nr_pages)
+static void clear_dirty_log(struct kvm_vm *vm, unsigned long *bitmaps[],
+ int slots, uint64_t pages_per_slot)
{
- uint64_t slot_pages = nr_pages / slots;
int i;
for (i = 0; i < slots; i++) {
int slot = PERF_TEST_MEM_SLOT_INDEX + i;
- unsigned long *slot_bitmap = bitmap + i * slot_pages;
- kvm_vm_clear_dirty_log(vm, slot, slot_bitmap, 0, slot_pages);
+ kvm_vm_clear_dirty_log(vm, slot, bitmaps[i], 0, pages_per_slot);
}
}
+static unsigned long **alloc_bitmaps(int slots, uint64_t pages_per_slot)
+{
+ unsigned long **bitmaps;
+ int i;
+
+ bitmaps = malloc(slots * sizeof(bitmaps[0]));
+ TEST_ASSERT(bitmaps, "Failed to allocate bitmaps array.");
+
+ for (i = 0; i < slots; i++) {
+ bitmaps[i] = bitmap_zalloc(pages_per_slot);
+ TEST_ASSERT(bitmaps[i], "Failed to allocate slot bitmap.");
+ }
+
+ return bitmaps;
+}
+
+static void free_bitmaps(unsigned long *bitmaps[], int slots)
+{
+ int i;
+
+ for (i = 0; i < slots; i++)
+ free(bitmaps[i]);
+
+ free(bitmaps);
+}
+
static void run_test(enum vm_guest_mode mode, void *arg)
{
struct test_params *p = arg;
pthread_t *vcpu_threads;
struct kvm_vm *vm;
- unsigned long *bmap;
+ unsigned long **bitmaps;
uint64_t guest_num_pages;
uint64_t host_num_pages;
+ uint64_t pages_per_slot;
int vcpu_id;
struct timespec start;
struct timespec ts_diff;
guest_num_pages = (nr_vcpus * guest_percpu_mem_size) >> vm_get_page_shift(vm);
guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages);
host_num_pages = vm_num_host_pages(mode, guest_num_pages);
- bmap = bitmap_zalloc(host_num_pages);
+ pages_per_slot = host_num_pages / p->slots;
+
+ bitmaps = alloc_bitmaps(p->slots, pages_per_slot);
if (dirty_log_manual_caps) {
cap.cap = KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2;
iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
clock_gettime(CLOCK_MONOTONIC, &start);
- get_dirty_log(vm, p->slots, bmap, host_num_pages);
+ get_dirty_log(vm, bitmaps, p->slots);
ts_diff = timespec_elapsed(start);
get_dirty_log_total = timespec_add(get_dirty_log_total,
ts_diff);
if (dirty_log_manual_caps) {
clock_gettime(CLOCK_MONOTONIC, &start);
- clear_dirty_log(vm, p->slots, bmap, host_num_pages);
+ clear_dirty_log(vm, bitmaps, p->slots, pages_per_slot);
ts_diff = timespec_elapsed(start);
clear_dirty_log_total = timespec_add(clear_dirty_log_total,
ts_diff);
clear_dirty_log_total.tv_nsec, avg.tv_sec, avg.tv_nsec);
}
- free(bmap);
+ free_bitmaps(bitmaps, p->slots);
free(vcpu_threads);
perf_test_destroy_vm(vm);
}
printf(" -v: specify the number of vCPUs to run.\n");
printf(" -o: Overlap guest memory accesses instead of partitioning\n"
" them into a separate region of memory for each vCPU.\n");
- printf(" -s: specify the type of memory that should be used to\n"
- " back the guest data region.\n\n");
+ backing_src_help("-s");
printf(" -x: Split the memory region into this number of memslots.\n"
- " (default: 1)");
- backing_src_help();
+ " (default: 1)\n");
puts("");
exit(0);
}
.iterations = TEST_HOST_LOOP_N,
.wr_fract = 1,
.partition_vcpu_memory_access = true,
- .backing_src = VM_MEM_SRC_ANONYMOUS,
+ .backing_src = DEFAULT_VM_MEM_SRC,
.slots = 1,
};
int opt;
NUM_SRC_TYPES,
};
+#define DEFAULT_VM_MEM_SRC VM_MEM_SRC_ANONYMOUS
+
struct vm_mem_backing_src_alias {
const char *name;
uint32_t flag;
};
+#define MIN_RUN_DELAY_NS 200000UL
+
bool thp_configured(void);
size_t get_trans_hugepagesz(void);
size_t get_def_hugetlb_pagesz(void);
const struct vm_mem_backing_src_alias *vm_mem_backing_src_alias(uint32_t i);
size_t get_backing_src_pagesz(uint32_t i);
-void backing_src_help(void);
+void backing_src_help(const char *flag);
enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name);
+long get_run_delay(void);
/*
* Whether or not the given source type is shared memory (as opposed to
}
}
-typedef unsigned long v1di __attribute__ ((vector_size (8)));
+#define GET_XMM(__xmm) \
+({ \
+ unsigned long __val; \
+ asm volatile("movq %%"#__xmm", %0" : "=r"(__val) : : #__xmm); \
+ __val; \
+})
+
static inline unsigned long get_xmm(int n)
{
assert(n >= 0 && n <= 7);
- register v1di xmm0 __asm__("%xmm0");
- register v1di xmm1 __asm__("%xmm1");
- register v1di xmm2 __asm__("%xmm2");
- register v1di xmm3 __asm__("%xmm3");
- register v1di xmm4 __asm__("%xmm4");
- register v1di xmm5 __asm__("%xmm5");
- register v1di xmm6 __asm__("%xmm6");
- register v1di xmm7 __asm__("%xmm7");
switch (n) {
case 0:
- return (unsigned long)xmm0;
+ return GET_XMM(xmm0);
case 1:
- return (unsigned long)xmm1;
+ return GET_XMM(xmm1);
case 2:
- return (unsigned long)xmm2;
+ return GET_XMM(xmm2);
case 3:
- return (unsigned long)xmm3;
+ return GET_XMM(xmm3);
case 4:
- return (unsigned long)xmm4;
+ return GET_XMM(xmm4);
case 5:
- return (unsigned long)xmm5;
+ return GET_XMM(xmm5);
case 6:
- return (unsigned long)xmm6;
+ return GET_XMM(xmm6);
case 7:
- return (unsigned long)xmm7;
+ return GET_XMM(xmm7);
}
+
+ /* never reached */
return 0;
}
" (default: 1G)\n");
printf(" -v: specify the number of vCPUs to run\n"
" (default: 1)\n");
- printf(" -s: specify the type of memory that should be used to\n"
- " back the guest data region.\n"
- " (default: anonymous)\n\n");
- backing_src_help();
+ backing_src_help("-s");
puts("");
}
int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
struct test_params p = {
.test_mem_size = DEFAULT_TEST_MEM_SIZE,
- .src_type = VM_MEM_SRC_ANONYMOUS,
+ .src_type = DEFAULT_VM_MEM_SRC,
};
int opt;
#include <stdlib.h>
#include <time.h>
#include <sys/stat.h>
+#include <sys/syscall.h>
#include <linux/mman.h>
#include "linux/kernel.h"
{
size_t size;
FILE *f;
+ int ret;
TEST_ASSERT(thp_configured(), "THP is not configured in host kernel");
f = fopen("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size", "r");
TEST_ASSERT(f != NULL, "Error in opening transparent_hugepage/hpage_pmd_size");
- fscanf(f, "%ld", &size);
+ ret = fscanf(f, "%ld", &size);
+ ret = fscanf(f, "%ld", &size);
+ TEST_ASSERT(ret < 1, "Error reading transparent_hugepage/hpage_pmd_size");
fclose(f);
return size;
}
}
-void backing_src_help(void)
+static void print_available_backing_src_types(const char *prefix)
{
int i;
- printf("Available backing src types:\n");
+ printf("%sAvailable backing src types:\n", prefix);
+
for (i = 0; i < NUM_SRC_TYPES; i++)
- printf("\t%s\n", vm_mem_backing_src_alias(i)->name);
+ printf("%s %s\n", prefix, vm_mem_backing_src_alias(i)->name);
+}
+
+void backing_src_help(const char *flag)
+{
+ printf(" %s: specify the type of memory that should be used to\n"
+ " back the guest data region. (default: %s)\n",
+ flag, vm_mem_backing_src_alias(DEFAULT_VM_MEM_SRC)->name);
+ print_available_backing_src_types(" ");
}
enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name)
if (!strcmp(type_name, vm_mem_backing_src_alias(i)->name))
return i;
- backing_src_help();
+ print_available_backing_src_types("");
TEST_FAIL("Unknown backing src type: %s", type_name);
return -1;
}
+
+long get_run_delay(void)
+{
+ char path[64];
+ long val[2];
+ FILE *fp;
+
+ sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid));
+ fp = fopen(path, "r");
+ /* Return MIN_RUN_DELAY_NS upon failure just to be safe */
+ if (fscanf(fp, "%ld %ld ", &val[0], &val[1]) < 2)
+ val[1] = MIN_RUN_DELAY_NS;
+ fclose(fp);
+
+ return val[1];
+}
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+#define _GNU_SOURCE /* for program_invocation_short_name */
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <syscall.h>
+#include <sys/ioctl.h>
+#include <asm/barrier.h>
+#include <linux/atomic.h>
+#include <linux/rseq.h>
+#include <linux/unistd.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+
+#define VCPU_ID 0
+
+static __thread volatile struct rseq __rseq = {
+ .cpu_id = RSEQ_CPU_ID_UNINITIALIZED,
+};
+
+/*
+ * Use an arbitrary, bogus signature for configuring rseq, this test does not
+ * actually enter an rseq critical section.
+ */
+#define RSEQ_SIG 0xdeadbeef
+
+/*
+ * Any bug related to task migration is likely to be timing-dependent; perform
+ * a large number of migrations to reduce the odds of a false negative.
+ */
+#define NR_TASK_MIGRATIONS 100000
+
+static pthread_t migration_thread;
+static cpu_set_t possible_mask;
+static bool done;
+
+static atomic_t seq_cnt;
+
+static void guest_code(void)
+{
+ for (;;)
+ GUEST_SYNC(0);
+}
+
+static void sys_rseq(int flags)
+{
+ int r;
+
+ r = syscall(__NR_rseq, &__rseq, sizeof(__rseq), flags, RSEQ_SIG);
+ TEST_ASSERT(!r, "rseq failed, errno = %d (%s)", errno, strerror(errno));
+}
+
+static void *migration_worker(void *ign)
+{
+ cpu_set_t allowed_mask;
+ int r, i, nr_cpus, cpu;
+
+ CPU_ZERO(&allowed_mask);
+
+ nr_cpus = CPU_COUNT(&possible_mask);
+
+ for (i = 0; i < NR_TASK_MIGRATIONS; i++) {
+ cpu = i % nr_cpus;
+ if (!CPU_ISSET(cpu, &possible_mask))
+ continue;
+
+ CPU_SET(cpu, &allowed_mask);
+
+ /*
+ * Bump the sequence count twice to allow the reader to detect
+ * that a migration may have occurred in between rseq and sched
+ * CPU ID reads. An odd sequence count indicates a migration
+ * is in-progress, while a completely different count indicates
+ * a migration occurred since the count was last read.
+ */
+ atomic_inc(&seq_cnt);
+
+ /*
+ * Ensure the odd count is visible while sched_getcpu() isn't
+ * stable, i.e. while changing affinity is in-progress.
+ */
+ smp_wmb();
+ r = sched_setaffinity(0, sizeof(allowed_mask), &allowed_mask);
+ TEST_ASSERT(!r, "sched_setaffinity failed, errno = %d (%s)",
+ errno, strerror(errno));
+ smp_wmb();
+ atomic_inc(&seq_cnt);
+
+ CPU_CLR(cpu, &allowed_mask);
+
+ /*
+ * Wait 1-10us before proceeding to the next iteration and more
+ * specifically, before bumping seq_cnt again. A delay is
+ * needed on three fronts:
+ *
+ * 1. To allow sched_setaffinity() to prompt migration before
+ * ioctl(KVM_RUN) enters the guest so that TIF_NOTIFY_RESUME
+ * (or TIF_NEED_RESCHED, which indirectly leads to handling
+ * NOTIFY_RESUME) is handled in KVM context.
+ *
+ * If NOTIFY_RESUME/NEED_RESCHED is set after KVM enters
+ * the guest, the guest will trigger a IO/MMIO exit all the
+ * way to userspace and the TIF flags will be handled by
+ * the generic "exit to userspace" logic, not by KVM. The
+ * exit to userspace is necessary to give the test a chance
+ * to check the rseq CPU ID (see #2).
+ *
+ * Alternatively, guest_code() could include an instruction
+ * to trigger an exit that is handled by KVM, but any such
+ * exit requires architecture specific code.
+ *
+ * 2. To let ioctl(KVM_RUN) make its way back to the test
+ * before the next round of migration. The test's check on
+ * the rseq CPU ID must wait for migration to complete in
+ * order to avoid false positive, thus any kernel rseq bug
+ * will be missed if the next migration starts before the
+ * check completes.
+ *
+ * 3. To ensure the read-side makes efficient forward progress,
+ * e.g. if sched_getcpu() involves a syscall. Stalling the
+ * read-side means the test will spend more time waiting for
+ * sched_getcpu() to stabilize and less time trying to hit
+ * the timing-dependent bug.
+ *
+ * Because any bug in this area is likely to be timing-dependent,
+ * run with a range of delays at 1us intervals from 1us to 10us
+ * as a best effort to avoid tuning the test to the point where
+ * it can hit _only_ the original bug and not detect future
+ * regressions.
+ *
+ * The original bug can reproduce with a delay up to ~500us on
+ * x86-64, but starts to require more iterations to reproduce
+ * as the delay creeps above ~10us, and the average runtime of
+ * each iteration obviously increases as well. Cap the delay
+ * at 10us to keep test runtime reasonable while minimizing
+ * potential coverage loss.
+ *
+ * The lower bound for reproducing the bug is likely below 1us,
+ * e.g. failures occur on x86-64 with nanosleep(0), but at that
+ * point the overhead of the syscall likely dominates the delay.
+ * Use usleep() for simplicity and to avoid unnecessary kernel
+ * dependencies.
+ */
+ usleep((i % 10) + 1);
+ }
+ done = true;
+ return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+ int r, i, snapshot;
+ struct kvm_vm *vm;
+ u32 cpu, rseq_cpu;
+
+ /* Tell stdout not to buffer its content */
+ setbuf(stdout, NULL);
+
+ r = sched_getaffinity(0, sizeof(possible_mask), &possible_mask);
+ TEST_ASSERT(!r, "sched_getaffinity failed, errno = %d (%s)", errno,
+ strerror(errno));
+
+ if (CPU_COUNT(&possible_mask) < 2) {
+ print_skip("Only one CPU, task migration not possible\n");
+ exit(KSFT_SKIP);
+ }
+
+ sys_rseq(0);
+
+ /*
+ * Create and run a dummy VM that immediately exits to userspace via
+ * GUEST_SYNC, while concurrently migrating the process by setting its
+ * CPU affinity.
+ */
+ vm = vm_create_default(VCPU_ID, 0, guest_code);
+ ucall_init(vm, NULL);
+
+ pthread_create(&migration_thread, NULL, migration_worker, 0);
+
+ for (i = 0; !done; i++) {
+ vcpu_run(vm, VCPU_ID);
+ TEST_ASSERT(get_ucall(vm, VCPU_ID, NULL) == UCALL_SYNC,
+ "Guest failed?");
+
+ /*
+ * Verify rseq's CPU matches sched's CPU. Ensure migration
+ * doesn't occur between sched_getcpu() and reading the rseq
+ * cpu_id by rereading both if the sequence count changes, or
+ * if the count is odd (migration in-progress).
+ */
+ do {
+ /*
+ * Drop bit 0 to force a mismatch if the count is odd,
+ * i.e. if a migration is in-progress.
+ */
+ snapshot = atomic_read(&seq_cnt) & ~1;
+
+ /*
+ * Ensure reading sched_getcpu() and rseq.cpu_id
+ * complete in a single "no migration" window, i.e. are
+ * not reordered across the seq_cnt reads.
+ */
+ smp_rmb();
+ cpu = sched_getcpu();
+ rseq_cpu = READ_ONCE(__rseq.cpu_id);
+ smp_rmb();
+ } while (snapshot != atomic_read(&seq_cnt));
+
+ TEST_ASSERT(rseq_cpu == cpu,
+ "rseq CPU = %d, sched CPU = %d\n", rseq_cpu, cpu);
+ }
+
+ /*
+ * Sanity check that the test was able to enter the guest a reasonable
+ * number of times, e.g. didn't get stalled too often/long waiting for
+ * sched_getcpu() to stabilize. A 2:1 migration:KVM_RUN ratio is a
+ * fairly conservative ratio on x86-64, which can do _more_ KVM_RUNs
+ * than migrations given the 1us+ delay in the migration task.
+ */
+ TEST_ASSERT(i > (NR_TASK_MIGRATIONS / 2),
+ "Only performed %d KVM_RUNs, task stalled too much?\n", i);
+
+ pthread_join(migration_thread, NULL);
+
+ kvm_vm_free(vm);
+
+ sys_rseq(RSEQ_FLAG_UNREGISTER);
+
+ return 0;
+}
#include <sched.h>
#include <pthread.h>
#include <linux/kernel.h>
-#include <sys/syscall.h>
#include <asm/kvm.h>
#include <asm/kvm_para.h>
#define NR_VCPUS 4
#define ST_GPA_BASE (1 << 30)
-#define MIN_RUN_DELAY_NS 200000UL
static void *st_gva[NR_VCPUS];
static uint64_t guest_stolen_time[NR_VCPUS];
uint64_t st_time;
};
-static int64_t smccc(uint32_t func, uint32_t arg)
+static int64_t smccc(uint32_t func, uint64_t arg)
{
unsigned long ret;
asm volatile(
- "mov x0, %1\n"
+ "mov w0, %w1\n"
"mov x1, %2\n"
"hvc #0\n"
"mov %0, x0\n"
#endif
-static long get_run_delay(void)
-{
- char path[64];
- long val[2];
- FILE *fp;
-
- sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid));
- fp = fopen(path, "r");
- fscanf(fp, "%ld %ld ", &val[0], &val[1]);
- fclose(fp);
-
- return val[1];
-}
-
static void *do_steal_time(void *arg)
{
struct timespec ts, stop;
FILE *f;
f = popen("dmesg | grep \"WARNING:\" | wc -l", "r");
- fscanf(f, "%d", &warnings);
+ if (fscanf(f, "%d", &warnings) < 1)
+ warnings = 0;
fclose(f);
return warnings;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * svm_int_ctl_test
+ *
+ * Copyright (C) 2021, Red Hat, Inc.
+ *
+ * Nested SVM testing: test simultaneous use of V_IRQ from L1 and L0.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "apic.h"
+
+#define VCPU_ID 0
+
+static struct kvm_vm *vm;
+
+bool vintr_irq_called;
+bool intr_irq_called;
+
+#define VINTR_IRQ_NUMBER 0x20
+#define INTR_IRQ_NUMBER 0x30
+
+static void vintr_irq_handler(struct ex_regs *regs)
+{
+ vintr_irq_called = true;
+}
+
+static void intr_irq_handler(struct ex_regs *regs)
+{
+ x2apic_write_reg(APIC_EOI, 0x00);
+ intr_irq_called = true;
+}
+
+static void l2_guest_code(struct svm_test_data *svm)
+{
+ /* This code raises interrupt INTR_IRQ_NUMBER in the L1's LAPIC,
+ * and since L1 didn't enable virtual interrupt masking,
+ * L2 should receive it and not L1.
+ *
+ * L2 also has virtual interrupt 'VINTR_IRQ_NUMBER' pending in V_IRQ
+ * so it should also receive it after the following 'sti'.
+ */
+ x2apic_write_reg(APIC_ICR,
+ APIC_DEST_SELF | APIC_INT_ASSERT | INTR_IRQ_NUMBER);
+
+ __asm__ __volatile__(
+ "sti\n"
+ "nop\n"
+ );
+
+ GUEST_ASSERT(vintr_irq_called);
+ GUEST_ASSERT(intr_irq_called);
+
+ __asm__ __volatile__(
+ "vmcall\n"
+ );
+}
+
+static void l1_guest_code(struct svm_test_data *svm)
+{
+ #define L2_GUEST_STACK_SIZE 64
+ unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+ struct vmcb *vmcb = svm->vmcb;
+
+ x2apic_enable();
+
+ /* Prepare for L2 execution. */
+ generic_svm_setup(svm, l2_guest_code,
+ &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+ /* No virtual interrupt masking */
+ vmcb->control.int_ctl &= ~V_INTR_MASKING_MASK;
+
+ /* No intercepts for real and virtual interrupts */
+ vmcb->control.intercept &= ~(1ULL << INTERCEPT_INTR | INTERCEPT_VINTR);
+
+ /* Make a virtual interrupt VINTR_IRQ_NUMBER pending */
+ vmcb->control.int_ctl |= V_IRQ_MASK | (0x1 << V_INTR_PRIO_SHIFT);
+ vmcb->control.int_vector = VINTR_IRQ_NUMBER;
+
+ run_guest(vmcb, svm->vmcb_gpa);
+ GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+ GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+ vm_vaddr_t svm_gva;
+
+ nested_svm_check_supported();
+
+ vm = vm_create_default(VCPU_ID, 0, (void *) l1_guest_code);
+
+ vm_init_descriptor_tables(vm);
+ vcpu_init_descriptor_tables(vm, VCPU_ID);
+
+ vm_install_exception_handler(vm, VINTR_IRQ_NUMBER, vintr_irq_handler);
+ vm_install_exception_handler(vm, INTR_IRQ_NUMBER, intr_irq_handler);
+
+ vcpu_alloc_svm(vm, &svm_gva);
+ vcpu_args_set(vm, VCPU_ID, 1, svm_gva);
+
+ struct kvm_run *run = vcpu_state(vm, VCPU_ID);
+ struct ucall uc;
+
+ vcpu_run(vm, VCPU_ID);
+ TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
+ "Got exit_reason other than KVM_EXIT_IO: %u (%s)\n",
+ run->exit_reason,
+ exit_reason_str(run->exit_reason));
+
+ switch (get_ucall(vm, VCPU_ID, &uc)) {
+ case UCALL_ABORT:
+ TEST_FAIL("%s", (const char *)uc.args[0]);
+ break;
+ /* NOT REACHED */
+ case UCALL_DONE:
+ goto done;
+ default:
+ TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+ }
+done:
+ kvm_vm_free(vm);
+ return 0;
+}
#include <stdint.h>
#include <time.h>
#include <sched.h>
-#include <sys/syscall.h>
#define VCPU_ID 5
GUEST_DONE();
}
-static long get_run_delay(void)
-{
- char path[64];
- long val[2];
- FILE *fp;
-
- sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid));
- fp = fopen(path, "r");
- fscanf(fp, "%ld %ld ", &val[0], &val[1]);
- fclose(fp);
-
- return val[1];
-}
-
static int cmp_timespec(struct timespec *a, struct timespec *b)
{
if (a->tv_sec > b->tv_sec)
# When local build is done, headers are installed in the default
# INSTALL_HDR_PATH usr/include.
.PHONY: khdr
+.NOTPARALLEL:
khdr:
ifndef KSFT_KHDR_INSTALL_DONE
ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
const __u8 *rsp, __u32 rsp_len)
{
char buf[256];
- unsigned int len;
+ int len;
send(nfc_sock, &cmd[3], cmd_len - 3, 0);
len = read(virtual_fd, buf, cmd_len);
-##TEST_GEN_FILES := test_unix_oob
-TEST_PROGS := test_unix_oob
+TEST_GEN_PROGS := test_unix_oob
include ../../lib.mk
-
-all: $(TEST_PROGS)
read_oob(pfd, &oob);
if (!signal_recvd || len != 127 || oob != '%' || atmark != 1) {
- fprintf(stderr, "Test 3 failed, sigurg %d len %d OOB %c ",
- "atmark %d\n", signal_recvd, len, oob, atmark);
+ fprintf(stderr,
+ "Test 3 failed, sigurg %d len %d OOB %c atmark %d\n",
+ signal_recvd, len, oob, atmark);
die(1);
}
check_err $? "Got unexpected long alternative name from link show JSON"
ip link property del $DUMMY_DEV altname $SHORT_NAME
- check_err $? "Failed to add short alternative name"
+ check_err $? "Failed to delete short alternative name"
ip -j -p link show $SHORT_NAME &>/dev/null
check_fail $? "Unexpected success while trying to do link show with deleted short alternative name"
/* SPDX-License-Identifier: GPL-2.0 */
-#include <ppc-asm.h>
+#include <basic_asm.h>
#include <asm/unistd.h>
.text
1:
li r3, -1
blr
+
+
+.macro scv level
+ .long (0x44000001 | (\level) << 5)
+.endm
+
+FUNC_START(getppid_scv_tm_active)
+ PUSH_BASIC_STACK(0)
+ tbegin.
+ beq 1f
+ li r0, __NR_getppid
+ scv 0
+ tend.
+ POP_BASIC_STACK(0)
+ blr
+1:
+ li r3, -1
+ POP_BASIC_STACK(0)
+ blr
+
+FUNC_START(getppid_scv_tm_suspended)
+ PUSH_BASIC_STACK(0)
+ tbegin.
+ beq 1f
+ li r0, __NR_getppid
+ tsuspend.
+ scv 0
+ tresume.
+ tend.
+ POP_BASIC_STACK(0)
+ blr
+1:
+ li r3, -1
+ POP_BASIC_STACK(0)
+ blr
#include "utils.h"
#include "tm.h"
+#ifndef PPC_FEATURE2_SCV
+#define PPC_FEATURE2_SCV 0x00100000 /* scv syscall */
+#endif
+
extern int getppid_tm_active(void);
extern int getppid_tm_suspended(void);
+extern int getppid_scv_tm_active(void);
+extern int getppid_scv_tm_suspended(void);
unsigned retries = 0;
#define TEST_DURATION 10 /* seconds */
-pid_t getppid_tm(bool suspend)
+pid_t getppid_tm(bool scv, bool suspend)
{
int i;
pid_t pid;
for (i = 0; i < TM_RETRIES; i++) {
- if (suspend)
- pid = getppid_tm_suspended();
- else
- pid = getppid_tm_active();
+ if (suspend) {
+ if (scv)
+ pid = getppid_scv_tm_suspended();
+ else
+ pid = getppid_tm_suspended();
+ } else {
+ if (scv)
+ pid = getppid_scv_tm_active();
+ else
+ pid = getppid_tm_active();
+ }
if (pid >= 0)
return pid;
* Test a syscall within a suspended transaction and verify
* that it succeeds.
*/
- FAIL_IF(getppid_tm(true) == -1); /* Should succeed. */
+ FAIL_IF(getppid_tm(false, true) == -1); /* Should succeed. */
/*
* Test a syscall within an active transaction and verify that
* it fails with the correct failure code.
*/
- FAIL_IF(getppid_tm(false) != -1); /* Should fail... */
+ FAIL_IF(getppid_tm(false, false) != -1); /* Should fail... */
FAIL_IF(!failure_is_persistent()); /* ...persistently... */
FAIL_IF(!failure_is_syscall()); /* ...with code syscall. */
+
+ /* Now do it all again with scv if it is available. */
+ if (have_hwcap2(PPC_FEATURE2_SCV)) {
+ FAIL_IF(getppid_tm(true, true) == -1); /* Should succeed. */
+ FAIL_IF(getppid_tm(true, false) != -1); /* Should fail... */
+ FAIL_IF(!failure_is_persistent()); /* ...persistently... */
+ FAIL_IF(!failure_is_syscall()); /* ...with code syscall. */
+ }
+
gettimeofday(&now, 0);
}
}
entry->ifnum = ifnum;
-
- /* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */
-
- fprintf(stderr, "%s speed\t%s\t%u\n",
- speed(entry->speed), entry->name, entry->ifnum);
-
entry->next = testdevs;
testdevs = entry;
return 0;
return 0;
}
+ status = ioctl(fd, USBDEVFS_GET_SPEED, NULL);
+ if (status < 0)
+ fprintf(stderr, "USBDEVFS_GET_SPEED failed %d\n", status);
+ else
+ dev->speed = status;
+ fprintf(stderr, "%s speed\t%s\t%u\n",
+ speed(dev->speed), dev->name, dev->ifnum);
+
restart:
for (i = 0; i < TEST_CASES; i++) {
if (dev->test != -1 && dev->test != i)
if (opt_list && opt_list_mapcnt)
kpagecount_fd = checked_open(PROC_KPAGECOUNT, O_RDONLY);
- if (opt_mark_idle && opt_file)
+ if (opt_mark_idle)
page_idle_fd = checked_open(SYS_KERNEL_MM_PAGE_IDLE, O_RDWR);
if (opt_list && opt_pid)
{
}
-static inline bool kvm_kick_many_cpus(const struct cpumask *cpus, bool wait)
+static inline bool kvm_kick_many_cpus(cpumask_var_t tmp, bool wait)
{
- if (unlikely(!cpus))
+ const struct cpumask *cpus;
+
+ if (likely(cpumask_available(tmp)))
+ cpus = tmp;
+ else
cpus = cpu_online_mask;
if (cpumask_empty(cpus))
continue;
kvm_make_request(req, vcpu);
- cpu = vcpu->cpu;
if (!(req & KVM_REQUEST_NO_WAKEUP) && kvm_vcpu_wake_up(vcpu))
continue;
- if (tmp != NULL && cpu != -1 && cpu != me &&
- kvm_request_needs_ipi(vcpu, req))
- __cpumask_set_cpu(cpu, tmp);
+ /*
+ * tmp can be "unavailable" if cpumasks are allocated off stack
+ * as allocation of the mask is deliberately not fatal and is
+ * handled by falling back to kicking all online CPUs.
+ */
+ if (!cpumask_available(tmp))
+ continue;
+
+ /*
+ * Note, the vCPU could get migrated to a different pCPU at any
+ * point after kvm_request_needs_ipi(), which could result in
+ * sending an IPI to the previous pCPU. But, that's ok because
+ * the purpose of the IPI is to ensure the vCPU returns to
+ * OUTSIDE_GUEST_MODE, which is satisfied if the vCPU migrates.
+ * Entering READING_SHADOW_PAGE_TABLES after this point is also
+ * ok, as the requirement is only that KVM wait for vCPUs that
+ * were reading SPTEs _before_ any changes were finalized. See
+ * kvm_vcpu_kick() for more details on handling requests.
+ */
+ if (kvm_request_needs_ipi(vcpu, req)) {
+ cpu = READ_ONCE(vcpu->cpu);
+ if (cpu != -1 && cpu != me)
+ __cpumask_set_cpu(cpu, tmp);
+ }
}
called = kvm_kick_many_cpus(tmp, !!(req & KVM_REQUEST_WAIT));
#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL
void kvm_flush_remote_tlbs(struct kvm *kvm)
{
- /*
- * Read tlbs_dirty before setting KVM_REQ_TLB_FLUSH in
- * kvm_make_all_cpus_request.
- */
- long dirty_count = smp_load_acquire(&kvm->tlbs_dirty);
-
++kvm->stat.generic.remote_tlb_flush_requests;
+
/*
* We want to publish modifications to the page tables before reading
* mode. Pairs with a memory barrier in arch-specific code.
if (!kvm_arch_flush_remote_tlb(kvm)
|| kvm_make_all_cpus_request(kvm, KVM_REQ_TLB_FLUSH))
++kvm->stat.generic.remote_tlb_flush;
- cmpxchg(&kvm->tlbs_dirty, dirty_count, 0);
}
EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs);
#endif
}
}
- if (range->flush_on_ret && (ret || kvm->tlbs_dirty))
+ if (range->flush_on_ret && ret)
kvm_flush_remote_tlbs(kvm);
if (locked)
static void shrink_halt_poll_ns(struct kvm_vcpu *vcpu)
{
- unsigned int old, val, shrink;
+ unsigned int old, val, shrink, grow_start;
old = val = vcpu->halt_poll_ns;
shrink = READ_ONCE(halt_poll_ns_shrink);
+ grow_start = READ_ONCE(halt_poll_ns_grow_start);
if (shrink == 0)
val = 0;
else
val /= shrink;
+ if (val < grow_start)
+ val = 0;
+
vcpu->halt_poll_ns = val;
trace_kvm_halt_poll_ns_shrink(vcpu->vcpu_id, val, old);
}
*/
void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
{
- int me;
- int cpu = vcpu->cpu;
+ int me, cpu;
if (kvm_vcpu_wake_up(vcpu))
return;
+ /*
+ * Note, the vCPU could get migrated to a different pCPU at any point
+ * after kvm_arch_vcpu_should_kick(), which could result in sending an
+ * IPI to the previous pCPU. But, that's ok because the purpose of the
+ * IPI is to force the vCPU to leave IN_GUEST_MODE, and migrating the
+ * vCPU also requires it to leave IN_GUEST_MODE.
+ */
me = get_cpu();
- if (cpu != me && (unsigned)cpu < nr_cpu_ids && cpu_online(cpu))
- if (kvm_arch_vcpu_should_kick(vcpu))
+ if (kvm_arch_vcpu_should_kick(vcpu)) {
+ cpu = READ_ONCE(vcpu->cpu);
+ if (cpu != me && (unsigned)cpu < nr_cpu_ids && cpu_online(cpu))
smp_send_reschedule(cpu);
+ }
put_cpu();
}
EXPORT_SYMBOL_GPL(kvm_vcpu_kick);
projects / platform / kernel / linux-rpi.git / commitdiff