error - an interrupt that can't be accounted for above.
- invalid: it's either a wakeup GPE or a GPE/Fixed Event that
+ invalid: it's either a GPE or a Fixed Event that
doesn't have an event handler.
disable: the GPE/Fixed Event is valid but disabled.
and other user space applications so that the machine won't shutdown
when pressing the power button.
# cat ff_pwr_btn
- 0
+ 0 enabled
# press the power button for 3 times;
# cat ff_pwr_btn
- 3
+ 3 enabled
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
- disable
+ 3 disabled
# press the power button for 3 times;
# cat ff_pwr_btn
- disable
+ 3 disabled
# echo enable > ff_pwr_btn
# cat ff_pwr_btn
- 4
+ 4 enabled
/*
* this is because the status bit is set even if the enable bit is cleared,
* and it triggers an ACPI fixed event when the enable bit is set again
*/
# press the power button for 3 times;
# cat ff_pwr_btn
- 7
+ 7 enabled
# echo disable > ff_pwr_btn
# press the power button for 3 times;
# echo clear > ff_pwr_btn /* clear the status bit */
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
- 7
+ 7 enabled
--- /dev/null
+ ACPI Debug Output
+
+
+The ACPI CA, the Linux ACPI core, and some ACPI drivers can generate debug
+output. This document describes how to use this facility.
+
+Compile-time configuration
+--------------------------
+
+ACPI debug output is globally enabled by CONFIG_ACPI_DEBUG. If this config
+option is turned off, the debug messages are not even built into the
+kernel.
+
+Boot- and run-time configuration
+--------------------------------
+
+When CONFIG_ACPI_DEBUG=y, you can select the component and level of messages
+you're interested in. At boot-time, use the acpi.debug_layer and
+acpi.debug_level kernel command line options. After boot, you can use the
+debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
+the debug messages.
+
+debug_layer (component)
+-----------------------
+
+The "debug_layer" is a mask that selects components of interest, e.g., a
+specific driver or part of the ACPI interpreter. To build the debug_layer
+bitmask, look for the "#define _COMPONENT" in an ACPI source file.
+
+You can set the debug_layer mask at boot-time using the acpi.debug_layer
+command line argument, and you can change it after boot by writing values
+to /sys/module/acpi/parameters/debug_layer.
+
+The possible components are defined in include/acpi/acoutput.h and
+include/acpi/acpi_drivers.h. Reading /sys/module/acpi/parameters/debug_layer
+shows the supported mask values, currently these:
+
+ ACPI_UTILITIES 0x00000001
+ ACPI_HARDWARE 0x00000002
+ ACPI_EVENTS 0x00000004
+ ACPI_TABLES 0x00000008
+ ACPI_NAMESPACE 0x00000010
+ ACPI_PARSER 0x00000020
+ ACPI_DISPATCHER 0x00000040
+ ACPI_EXECUTER 0x00000080
+ ACPI_RESOURCES 0x00000100
+ ACPI_CA_DEBUGGER 0x00000200
+ ACPI_OS_SERVICES 0x00000400
+ ACPI_CA_DISASSEMBLER 0x00000800
+ ACPI_COMPILER 0x00001000
+ ACPI_TOOLS 0x00002000
+ ACPI_BUS_COMPONENT 0x00010000
+ ACPI_AC_COMPONENT 0x00020000
+ ACPI_BATTERY_COMPONENT 0x00040000
+ ACPI_BUTTON_COMPONENT 0x00080000
+ ACPI_SBS_COMPONENT 0x00100000
+ ACPI_FAN_COMPONENT 0x00200000
+ ACPI_PCI_COMPONENT 0x00400000
+ ACPI_POWER_COMPONENT 0x00800000
+ ACPI_CONTAINER_COMPONENT 0x01000000
+ ACPI_SYSTEM_COMPONENT 0x02000000
+ ACPI_THERMAL_COMPONENT 0x04000000
+ ACPI_MEMORY_DEVICE_COMPONENT 0x08000000
+ ACPI_VIDEO_COMPONENT 0x10000000
+ ACPI_PROCESSOR_COMPONENT 0x20000000
+
+debug_level
+-----------
+
+The "debug_level" is a mask that selects different types of messages, e.g.,
+those related to initialization, method execution, informational messages, etc.
+To build debug_level, look at the level specified in an ACPI_DEBUG_PRINT()
+statement.
+
+The ACPI interpreter uses several different levels, but the Linux
+ACPI core and ACPI drivers generally only use ACPI_LV_INFO.
+
+You can set the debug_level mask at boot-time using the acpi.debug_level
+command line argument, and you can change it after boot by writing values
+to /sys/module/acpi/parameters/debug_level.
+
+The possible levels are defined in include/acpi/acoutput.h. Reading
+/sys/module/acpi/parameters/debug_level shows the supported mask values,
+currently these:
+
+ ACPI_LV_INIT 0x00000001
+ ACPI_LV_DEBUG_OBJECT 0x00000002
+ ACPI_LV_INFO 0x00000004
+ ACPI_LV_INIT_NAMES 0x00000020
+ ACPI_LV_PARSE 0x00000040
+ ACPI_LV_LOAD 0x00000080
+ ACPI_LV_DISPATCH 0x00000100
+ ACPI_LV_EXEC 0x00000200
+ ACPI_LV_NAMES 0x00000400
+ ACPI_LV_OPREGION 0x00000800
+ ACPI_LV_BFIELD 0x00001000
+ ACPI_LV_TABLES 0x00002000
+ ACPI_LV_VALUES 0x00004000
+ ACPI_LV_OBJECTS 0x00008000
+ ACPI_LV_RESOURCES 0x00010000
+ ACPI_LV_USER_REQUESTS 0x00020000
+ ACPI_LV_PACKAGE 0x00040000
+ ACPI_LV_ALLOCATIONS 0x00100000
+ ACPI_LV_FUNCTIONS 0x00200000
+ ACPI_LV_OPTIMIZATIONS 0x00400000
+ ACPI_LV_MUTEX 0x01000000
+ ACPI_LV_THREADS 0x02000000
+ ACPI_LV_IO 0x04000000
+ ACPI_LV_INTERRUPTS 0x08000000
+ ACPI_LV_AML_DISASSEMBLE 0x10000000
+ ACPI_LV_VERBOSE_INFO 0x20000000
+ ACPI_LV_FULL_TABLES 0x40000000
+ ACPI_LV_EVENTS 0x80000000
+
+Examples
+--------
+
+For example, drivers/acpi/bus.c contains this:
+
+ #define _COMPONENT ACPI_BUS_COMPONENT
+ ...
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n"));
+
+To turn on this message, set the ACPI_BUS_COMPONENT bit in acpi.debug_layer
+and the ACPI_LV_INFO bit in acpi.debug_level. (The ACPI_DEBUG_PRINT
+statement uses ACPI_DB_INFO, which is macro based on the ACPI_LV_INFO
+definition.)
+
+Enable all AML "Debug" output (stores to the Debug object while interpreting
+AML) during boot:
+
+ acpi.debug_layer=0xffffffff acpi.debug_level=0x2
+
+Enable PCI and PCI interrupt routing debug messages:
+
+ acpi.debug_layer=0x400000 acpi.debug_level=0x4
+
+Enable all ACPI hardware-related messages:
+
+ acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
+
+Enable all ACPI_DB_INFO messages after boot:
+
+ # echo 0x4 > /sys/module/acpi/parameters/debug_level
+
+Show all valid component values:
+
+ # cat /sys/module/acpi/parameters/debug_layer
* SA E200
* SA E200i
* SA E500
+ * SA P700m
* SA P212
* SA P410
* SA P410i
* SA P411
* SA P812
+ * SA P712m
+ * SA P711m
Detecting drive failures:
-------------------------
Works. Use "Insert file..." or external editor.
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Gmail (Web GUI)
+
+If you just have to use Gmail to send patches, it CAN be made to work. It
+requires a bit of external help, though.
+
+The first problem is that Gmail converts tabs to spaces. This will
+totally break your patches. To prevent this, you have to use a different
+editor. There is a firefox extension called "ViewSourceWith"
+(https://addons.mozilla.org/en-US/firefox/addon/394) which allows you to
+edit any text box in the editor of your choice. Configure it to launch
+your favorite editor. When you want to send a patch, use this technique.
+Once you have crafted your messsage + patch, save and exit the editor,
+which should reload the Gmail edit box. GMAIL WILL PRESERVE THE TABS.
+Hoorah. Apparently you can cut-n-paste literal tabs, but Gmail will
+convert those to spaces upon sending!
+
+The second problem is that Gmail converts tabs to spaces on replies. If
+you reply to a patch, don't expect to be able to apply it as a patch.
+
+The last problem is that Gmail will base64-encode any message that has a
+non-ASCII character. That includes things like European names. Be aware.
+
+Gmail is not convenient for lkml patches, but CAN be made to work.
+
###
VFAT MOUNT OPTIONS
----------------------------------------------------------------------
+uid=### -- Set the owner of all files on this filesystem.
+ The default is the uid of current process.
+
+gid=### -- Set the group of all files on this filesystem.
+ The default is the gid of current process.
+
umask=### -- The permission mask (for files and directories, see umask(1)).
The default is the umask of current process.
characters on FAT filesystem.
By default, FAT_DEFAULT_CODEPAGE setting is used.
-iocharset=name -- Character set to use for converting between the
+iocharset=<name> -- Character set to use for converting between the
encoding is used for user visible filename and 16 bit
Unicode characters. Long filenames are stored on disk
in Unicode format, but Unix for the most part doesn't
r: relaxed, case insensitive
n: normal, default setting, currently case insensitive
+nocase -- This was deprecated for vfat. Use shortname=win95 instead.
+
shortname=lower|win95|winnt|mixed
-- Shortname display/create setting.
lower: convert to lowercase for display,
tz=UTC -- Interpret timestamps as UTC rather than local time.
This option disables the conversion of timestamps
between local time (as used by Windows on FAT) and UTC
- (which Linux uses internally). This is particuluarly
+ (which Linux uses internally). This is particularly
useful when mounting devices (like digital cameras)
that are set to UTC in order to avoid the pitfalls of
local time.
+showexec -- If set, the execute permission bits of the file will be
+ allowed only if the extension part of the name is .EXE,
+ .COM, or .BAT. Not set by default.
+
+debug -- Can be set, but unused by the current implementation.
+
+sys_immutable -- If set, ATTR_SYS attribute on FAT is handled as
+ IMMUTABLE flag on Linux. Not set by default.
+
+flush -- If set, the filesystem will try to flush to disk more
+ early than normal. Not set by default.
+
+rodir -- FAT has the ATTR_RO (read-only) attribute. But on Windows,
+ the ATTR_RO of the directory will be just ignored actually,
+ and is used by only applications as flag. E.g. it's setted
+ for the customized folder.
+
+ If you want to use ATTR_RO as read-only flag even for
+ the directory, set this option.
+
<bool>: 0,1,yes,no,true,false
TODO
that require a timer override, but don't have
HPET
- acpi.debug_layer= [HW,ACPI]
+ acpi_backlight= [HW,ACPI]
+ acpi_backlight=vendor
+ acpi_backlight=video
+ If set to vendor, prefer vendor specific driver
+ (e.g. thinkpad_acpi, sony_acpi, etc.) instead
+ of the ACPI video.ko driver.
+
+ acpi_display_output= [HW,ACPI]
+ acpi_display_output=vendor
+ acpi_display_output=video
+ See above.
+
+ acpi.debug_layer= [HW,ACPI,ACPI_DEBUG]
+ acpi.debug_level= [HW,ACPI,ACPI_DEBUG]
Format: <int>
- Each bit of the <int> indicates an ACPI debug layer,
- 1: enable, 0: disable. It is useful for boot time
- debugging. After system has booted up, it can be set
- via /sys/module/acpi/parameters/debug_layer.
- CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
- Available bits (add the numbers together) to enable debug output
- for specific parts of the ACPI subsystem:
- 0x01 utilities 0x02 hardware 0x04 events 0x08 tables
- 0x10 namespace 0x20 parser 0x40 dispatcher
- 0x80 executer 0x100 resources 0x200 acpica debugger
- 0x400 os services 0x800 acpica disassembler.
- The number can be in decimal or prefixed with 0x in hex.
- Warning: Many of these options can produce a lot of
- output and make your system unusable. Be very careful.
-
- acpi.debug_level= [HW,ACPI]
- Format: <int>
- Each bit of the <int> indicates an ACPI debug level,
- which corresponds to the level in an ACPI_DEBUG_PRINT
- statement. After system has booted up, this mask
- can be set via /sys/module/acpi/parameters/debug_level.
-
- CONFIG_ACPI_DEBUG must be enabled for this to produce
- any output. The number can be in decimal or prefixed
- with 0x in hex. Some of these options produce so much
- output that the system is unusable.
-
- The following global components are defined by the
- ACPI CA:
- 0x01 error
- 0x02 warn
- 0x04 init
- 0x08 debug object
- 0x10 info
- 0x20 init names
- 0x40 parse
- 0x80 load
- 0x100 dispatch
- 0x200 execute
- 0x400 names
- 0x800 operation region
- 0x1000 bfield
- 0x2000 tables
- 0x4000 values
- 0x8000 objects
- 0x10000 resources
- 0x20000 user requests
- 0x40000 package
- The number can be in decimal or prefixed with 0x in hex.
- Warning: Many of these options can produce a lot of
- output and make your system unusable. Be very careful.
+ CONFIG_ACPI_DEBUG must be enabled to produce any ACPI
+ debug output. Bits in debug_layer correspond to a
+ _COMPONENT in an ACPI source file, e.g.,
+ #define _COMPONENT ACPI_PCI_COMPONENT
+ Bits in debug_level correspond to a level in
+ ACPI_DEBUG_PRINT statements, e.g.,
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, ...
+ See Documentation/acpi/debug.txt for more information
+ about debug layers and levels.
+
+ Enable AML "Debug" output, i.e., stores to the Debug
+ object while interpreting AML:
+ acpi.debug_layer=0xffffffff acpi.debug_level=0x2
+ Enable PCI/PCI interrupt routing info messages:
+ acpi.debug_layer=0x400000 acpi.debug_level=0x4
+ Enable all messages related to ACPI hardware:
+ acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
+
+ Some values produce so much output that the system is
+ unusable. The "log_buf_len" parameter may be useful
+ if you need to capture more output.
acpi.power_nocheck= [HW,ACPI]
Format: 1/0 enable/disable the check of power state.
Format:
<cpu number>,...,<cpu number>
or
- <cpu number>-<cpu number> (must be a positive range in ascending order)
+ <cpu number>-<cpu number>
+ (must be a positive range in ascending order)
or a mixture
<cpu number>,...,<cpu number>-<cpu number>
+
This option can be used to specify one or more CPUs
to isolate from the general SMP balancing and scheduling
- algorithms. The only way to move a process onto or off
- an "isolated" CPU is via the CPU affinity syscalls.
+ algorithms. You can move a process onto or off an
+ "isolated" CPU via the CPU affinity syscalls or cpuset.
<cpu number> begins at 0 and the maximum value is
"number of CPUs in system - 1".
Valid arguments: on, off
Default: on
- noirqbalance [X86-32,SMP,KNL] Disable kernel irq balancing
-
noirqdebug [X86-32] Disables the code which attempts to detect and
disable unhandled interrupt sources.
W: http://xf.iksaif.net/acpi4asus
S: Maintained
-ASYNCHRONOUS TRANSFERS/TRANSFORMS API
+ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API
P: Dan Williams
M: dan.j.williams@intel.com
P: Maciej Sosnowski
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+INTEL MENLOW THERMAL DRIVER
+P: Sujith Thomas
+M: sujith.thomas@intel.com
+L: linux-acpi@vger.kernel.org
+W: http://www.lesswatts.org/projects/acpi/
+S: Supported
+
INTEL IA32 MICROCODE UPDATE SUPPORT
P: Tigran Aivazian
M: tigran@aivazian.fsnet.co.uk
PNP SUPPORT
P: Adam Belay
-M: ambx1@neo.rr.com
+M: abelay@mit.edu
+P: Bjorn Helgaas
+M: bjorn.helgaas@hp.com
S: Maintained
PNXxxxx I2C DRIVER
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 28
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
NAME = Killer Bat of Doom
# *DOCUMENTATION*
Instruction-Based Sampling (IBS) is a new profiling
technique that provides rich, precise program performance
information. IBS is introduced by AMD Family10h processors
- (AMD Opteron Quad-Core processor “Barcelona”) to overcome
+ (AMD Opteron Quad-Core processor "Barcelona") to overcome
the limitations of conventional performance counter
sampling.
* The module space lives between the addresses given by TASK_SIZE
* and PAGE_OFFSET - it must be within 32MB of the kernel text.
*/
-#define MODULE_END (PAGE_OFFSET)
-#define MODULE_START (MODULE_END - 16*1048576)
+#define MODULES_END (PAGE_OFFSET)
+#define MODULES_VADDR (MODULES_END - 16*1048576)
-#if TASK_SIZE > MODULE_START
+#if TASK_SIZE > MODULES_VADDR
#error Top of user space clashes with start of module space
#endif
* Since we use sections to map it, this macro replaces the physical address
* with its virtual address while keeping offset from the base section.
*/
-#define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff))
+#define XIP_VIRT_ADDR(physaddr) (MODULES_VADDR + ((physaddr) & 0x000fffff))
/*
* Allow 16MB-aligned ioremap pages
/*
* The module can be at any place in ram in nommu mode.
*/
-#define MODULE_END (END_MEM)
-#define MODULE_START (PHYS_OFFSET)
+#define MODULES_END (END_MEM)
+#define MODULES_VADDR (PHYS_OFFSET)
#endif /* !CONFIG_MMU */
#define CR_U (1 << 22) /* Unaligned access operation */
#define CR_XP (1 << 23) /* Extended page tables */
#define CR_VE (1 << 24) /* Vectored interrupts */
+#define CR_EE (1 << 25) /* Exception (Big) Endian */
+#define CR_TRE (1 << 28) /* TEX remap enable */
+#define CR_AFE (1 << 29) /* Access flag enable */
+#define CR_TE (1 << 30) /* Thumb exception enable */
/*
* This is used to ensure the compiler did actually allocate the register we
eflags = x->e_flags;
if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN) {
+ unsigned int flt_fmt;
+
/* APCS26 is only allowed if the CPU supports it */
if ((eflags & EF_ARM_APCS_26) && !(elf_hwcap & HWCAP_26BIT))
return 0;
+ flt_fmt = eflags & (EF_ARM_VFP_FLOAT | EF_ARM_SOFT_FLOAT);
+
/* VFP requires the supporting code */
- if ((eflags & EF_ARM_VFP_FLOAT) && !(elf_hwcap & HWCAP_VFP))
+ if (flt_fmt == EF_ARM_VFP_FLOAT && !(elf_hwcap & HWCAP_VFP))
return 0;
}
return 1;
/*
* The XIP kernel text is mapped in the module area for modules and
* some other stuff to work without any indirect relocations.
- * MODULE_START is redefined here and not in asm/memory.h to avoid
+ * MODULES_VADDR is redefined here and not in asm/memory.h to avoid
* recompiling the whole kernel when CONFIG_XIP_KERNEL is turned on/off.
*/
extern void _etext;
-#undef MODULE_START
-#define MODULE_START (((unsigned long)&_etext + ~PGDIR_MASK) & PGDIR_MASK)
+#undef MODULES_VADDR
+#define MODULES_VADDR (((unsigned long)&_etext + ~PGDIR_MASK) & PGDIR_MASK)
#endif
#ifdef CONFIG_MMU
if (!size)
return NULL;
- area = __get_vm_area(size, VM_ALLOC, MODULE_START, MODULE_END);
+ area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
if (!area)
return NULL;
gpmc_l3_clk = clk_get(NULL, ck);
if (IS_ERR(gpmc_l3_clk)) {
printk(KERN_ERR "Could not get GPMC clock %s\n", ck);
- return -ENODEV;
+ BUG();
}
gpmc_base = ioremap(l, SZ_4K);
if (!gpmc_base) {
clk_put(gpmc_l3_clk);
printk(KERN_ERR "Could not get GPMC register memory\n");
- return -ENOMEM;
+ BUG();
}
- BUG_ON(IS_ERR(gpmc_l3_clk));
-
l = gpmc_read_reg(GPMC_REVISION);
printk(KERN_INFO "GPMC revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f);
/* Set smart idle mode and automatic L3 clock gating */
/*
* Clean and invalidate partial last cache line.
*/
- if (end & (CACHE_LINE_SIZE - 1)) {
+ if (start < end && (end & (CACHE_LINE_SIZE - 1))) {
xsc3_l2_clean_pa(end & ~(CACHE_LINE_SIZE - 1));
xsc3_l2_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
end &= ~(CACHE_LINE_SIZE - 1);
/*
* Invalidate all full cache lines between 'start' and 'end'.
*/
- while (start != end) {
+ while (start < end) {
xsc3_l2_inv_pa(start);
start += CACHE_LINE_SIZE;
}
#endif
#define PROT_PTE_DEVICE L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY|L_PTE_WRITE
-#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_XN|PMD_SECT_AP_WRITE
+#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_AP_WRITE
static struct mem_type mem_types[] = {
[MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
L_PTE_SHARED,
.prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_UNCACHED,
+ .prot_sect = PROT_SECT_DEVICE | PMD_SECT_S,
.domain = DOMAIN_IO,
},
[MT_DEVICE_NONSHARED] = { /* ARMv6 non-shared device */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_NONSHARED,
.prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_TEX(2),
+ .prot_sect = PROT_SECT_DEVICE,
.domain = DOMAIN_IO,
},
[MT_DEVICE_CACHED] = { /* ioremap_cached */
[MT_DEVICE_WC] = { /* ioremap_wc */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_WC,
.prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_BUFFERABLE,
+ .prot_sect = PROT_SECT_DEVICE,
.domain = DOMAIN_IO,
},
[MT_CACHECLEAN] = {
#endif
/*
- * On non-Xscale3 ARMv5-and-older systems, use CB=01
- * (Uncached/Buffered) for ioremap_wc() mappings. On XScale3
- * and ARMv6+, use TEXCB=00100 mappings (Inner/Outer Uncacheable
- * in xsc3 parlance, Uncached Normal in ARMv6 parlance).
+ * Strip out features not present on earlier architectures.
+ * Pre-ARMv5 CPUs don't have TEX bits. Pre-ARMv6 CPUs or those
+ * without extended page tables don't have the 'Shared' bit.
*/
- if (cpu_is_xsc3() || cpu_arch >= CPU_ARCH_ARMv6) {
- mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
- mem_types[MT_DEVICE_WC].prot_sect &= ~PMD_SECT_BUFFERABLE;
- }
+ if (cpu_arch < CPU_ARCH_ARMv5)
+ for (i = 0; i < ARRAY_SIZE(mem_types); i++)
+ mem_types[i].prot_sect &= ~PMD_SECT_TEX(7);
+ if ((cpu_arch < CPU_ARCH_ARMv6 || !(cr & CR_XP)) && !cpu_is_xsc3())
+ for (i = 0; i < ARRAY_SIZE(mem_types); i++)
+ mem_types[i].prot_sect &= ~PMD_SECT_S;
/*
- * ARMv5 and lower, bit 4 must be set for page tables.
- * (was: cache "update-able on write" bit on ARM610)
- * However, Xscale cores require this bit to be cleared.
+ * ARMv5 and lower, bit 4 must be set for page tables (was: cache
+ * "update-able on write" bit on ARM610). However, Xscale and
+ * Xscale3 require this bit to be cleared.
*/
- if (cpu_is_xscale()) {
+ if (cpu_is_xscale() || cpu_is_xsc3()) {
for (i = 0; i < ARRAY_SIZE(mem_types); i++) {
mem_types[i].prot_sect &= ~PMD_BIT4;
mem_types[i].prot_l1 &= ~PMD_BIT4;
}
}
+ /*
+ * Mark the device areas according to the CPU/architecture.
+ */
+ if (cpu_is_xsc3() || (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP))) {
+ if (!cpu_is_xsc3()) {
+ /*
+ * Mark device regions on ARMv6+ as execute-never
+ * to prevent speculative instruction fetches.
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_XN;
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_XN;
+ mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_XN;
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_XN;
+ }
+ if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
+ /*
+ * For ARMv7 with TEX remapping,
+ * - shared device is SXCB=1100
+ * - nonshared device is SXCB=0100
+ * - write combine device mem is SXCB=0001
+ * (Uncached Normal memory)
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_TEX(1);
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(1);
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE;
+ } else if (cpu_is_xsc3()) {
+ /*
+ * For Xscale3,
+ * - shared device is TEXCB=00101
+ * - nonshared device is TEXCB=01000
+ * - write combine device mem is TEXCB=00100
+ * (Inner/Outer Uncacheable in xsc3 parlance)
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_TEX(1) | PMD_SECT_BUFFERED;
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(2);
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
+ } else {
+ /*
+ * For ARMv6 and ARMv7 without TEX remapping,
+ * - shared device is TEXCB=00001
+ * - nonshared device is TEXCB=01000
+ * - write combine device mem is TEXCB=00100
+ * (Uncached Normal in ARMv6 parlance).
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(2);
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
+ }
+ } else {
+ /*
+ * On others, write combining is "Uncached/Buffered"
+ */
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE;
+ }
+
+ /*
+ * Now deal with the memory-type mappings
+ */
cp = &cache_policies[cachepolicy];
vecs_pgprot = kern_pgprot = user_pgprot = cp->pte;
* Enable CPU-specific coherency if supported.
* (Only available on XSC3 at the moment.)
*/
- if (arch_is_coherent()) {
- if (cpu_is_xsc3()) {
- mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
- mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
- }
- }
+ if (arch_is_coherent() && cpu_is_xsc3())
+ mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
/*
* ARMv6 and above have extended page tables.
mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
- /*
- * Mark the device area as "shared device"
- */
- mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
-
#ifdef CONFIG_SMP
/*
* Mark memory with the "shared" attribute for SMP systems
mem_types[MT_LOW_VECTORS].prot_pte |= vecs_pgprot;
mem_types[MT_HIGH_VECTORS].prot_pte |= vecs_pgprot;
- if (cpu_arch < CPU_ARCH_ARMv5)
- mem_types[MT_MINICLEAN].prot_sect &= ~PMD_SECT_TEX(1);
-
pgprot_user = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | user_pgprot);
pgprot_kernel = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG |
L_PTE_DIRTY | L_PTE_WRITE |
/*
* Clear out all the mappings below the kernel image.
*/
- for (addr = 0; addr < MODULE_START; addr += PGDIR_SIZE)
+ for (addr = 0; addr < MODULES_VADDR; addr += PGDIR_SIZE)
pmd_clear(pmd_off_k(addr));
#ifdef CONFIG_XIP_KERNEL
*/
#ifdef CONFIG_XIP_KERNEL
map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
- map.virtual = MODULE_START;
+ map.virtual = MODULES_VADDR;
map.length = ((unsigned long)&_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK;
map.type = MT_ROM;
create_mapping(&map);
orr r3, r3, r2
orr r3, r3, #PTE_EXT_AP0 | 2
- tst r2, #1 << 4
+ tst r1, #1 << 4
orrne r3, r3, #PTE_EXT_TEX(1)
tst r1, #L_PTE_WRITE
mov pc, lr @ return to head.S:__ret
ENDPROC(__v7_setup)
- /*
- * V X F I D LR
- * .... ...E PUI. .T.T 4RVI ZFRS BLDP WCAM
- * rrrr rrrx xxx0 0101 xxxx xxxx x111 xxxx < forced
- * 0 110 0011 1.00 .111 1101 < we want
+ /* AT
+ * TFR EV X F I D LR
+ * .EEE ..EE PUI. .T.T 4RVI ZFRS BLDP WCAM
+ * rxxx rrxx xxx0 0101 xxxx xxxx x111 xxxx < forced
+ * 1 0 110 0011 1.00 .111 1101 < we want
*/
.type v7_crval, #object
v7_crval:
if (c->id != 0)
sprintf(p, ":%d", c->id);
d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root);
- if (IS_ERR(d))
- return PTR_ERR(d);
+ if (!d)
+ return -ENOMEM;
c->dent = d;
d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
- if (IS_ERR(d)) {
- err = PTR_ERR(d);
+ if (!d) {
+ err = -ENOMEM;
goto err_out;
}
d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
- if (IS_ERR(d)) {
- err = PTR_ERR(d);
+ if (!d) {
+ err = -ENOMEM;
goto err_out;
}
d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
- if (IS_ERR(d)) {
- err = PTR_ERR(d);
+ if (!d) {
+ err = -ENOMEM;
goto err_out;
}
return 0;
int err;
d = debugfs_create_dir("clock", NULL);
- if (IS_ERR(d))
- return PTR_ERR(d);
+ if (!d)
+ return -ENOMEM;
clk_debugfs_root = d;
list_for_each_entry(c, &clocks, node) {
#include <mach/omap34xx.h>
#endif
-#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* Active interrupt number */
+#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* Active interrupt offset */
+#define ACTIVEIRQ_MASK 0x7f /* Active interrupt bits */
.macro disable_fiq
.endm
cmp \irqnr, #0x0
2222:
ldrne \irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET]
+ and \irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */
.endm
/* External TWL4030 gpio interrupts are optional */
#define TWL4030_GPIO_IRQ_BASE TWL4030_PWR_IRQ_END
-#ifdef CONFIG_TWL4030_GPIO
+#ifdef CONFIG_GPIO_TWL4030
#define TWL4030_GPIO_NR_IRQS 18
#else
#define TWL4030_GPIO_NR_IRQS 0
select ACPI_NUMA
select SWIOTLB
select PCI_MSI
+ select DMAR
help
This selects the system type of your hardware. A "generic" kernel
will run on any supported IA-64 system. However, if you configure
endmenu
-menu "Power management and ACPI"
+menu "Power management and ACPI options"
source "kernel/power/Kconfig"
source "drivers/Kconfig"
+source "arch/ia64/hp/sim/Kconfig"
+
config MSPEC
tristate "Memory special operations driver"
depends on IA64
source "fs/Kconfig"
+source "arch/ia64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
source "arch/ia64/kvm/Kconfig"
source "lib/Kconfig"
config IOMMU_HELPER
def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
-
-source "arch/ia64/hp/sim/Kconfig"
-
-source "arch/ia64/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
*/
#include <linux/device.h>
+#include <linux/swiotlb.h>
#include <asm/machvec.h>
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
-extern ia64_mv_dma_alloc_coherent swiotlb_alloc_coherent;
-extern ia64_mv_dma_free_coherent swiotlb_free_coherent;
-extern ia64_mv_dma_map_single_attrs swiotlb_map_single_attrs;
-extern ia64_mv_dma_unmap_single_attrs swiotlb_unmap_single_attrs;
-extern ia64_mv_dma_map_sg_attrs swiotlb_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs;
-extern ia64_mv_dma_supported swiotlb_dma_supported;
-extern ia64_mv_dma_mapping_error swiotlb_dma_mapping_error;
/* hwiommu declarations & definitions: */
# endif /* __KERNEL__ */
-/*
- * Enabling BIO_VMERGE_BOUNDARY forces us to turn off I/O MMU bypassing. It is said that
- * BIO-level virtual merging can give up to 4% performance boost (not verified for ia64).
- * On the other hand, we know that I/O MMU bypassing gives ~8% performance improvement on
- * SPECweb-like workloads on zx1-based machines. Thus, for now we favor I/O MMU bypassing
- * over BIO-level virtual merging.
- */
-extern unsigned long ia64_max_iommu_merge_mask;
-#if 1
-#define BIO_VMERGE_BOUNDARY 0
-#else
-/*
- * It makes no sense at all to have this BIO_VMERGE_BOUNDARY macro here. Should be
- * replaced by dma_merge_mask() or something of that sort. Note: the only way
- * BIO_VMERGE_BOUNDARY is used is to mask off bits. Effectively, our definition gets
- * expanded into:
- *
- * addr & ((ia64_max_iommu_merge_mask + 1) - 1) == (addr & ia64_max_iommu_vmerge_mask)
- *
- * which is precisely what we want.
- */
-#define BIO_VMERGE_BOUNDARY (ia64_max_iommu_merge_mask + 1)
-#endif
-
#endif /* _ASM_IA64_IO_H */
#define _ASM_IA64_MACHVEC_H
#include <linux/types.h>
+#include <linux/swiotlb.h>
/* forward declarations: */
struct device;
# error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
# endif /* CONFIG_IA64_GENERIC */
-/*
- * Declare default routines which aren't declared anywhere else:
- */
-extern ia64_mv_dma_init swiotlb_init;
-extern ia64_mv_dma_alloc_coherent swiotlb_alloc_coherent;
-extern ia64_mv_dma_free_coherent swiotlb_free_coherent;
-extern ia64_mv_dma_map_single swiotlb_map_single;
-extern ia64_mv_dma_map_single_attrs swiotlb_map_single_attrs;
-extern ia64_mv_dma_unmap_single swiotlb_unmap_single;
-extern ia64_mv_dma_unmap_single_attrs swiotlb_unmap_single_attrs;
-extern ia64_mv_dma_map_sg swiotlb_map_sg;
-extern ia64_mv_dma_map_sg_attrs swiotlb_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg swiotlb_unmap_sg;
-extern ia64_mv_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs;
-extern ia64_mv_dma_sync_single_for_cpu swiotlb_sync_single_for_cpu;
-extern ia64_mv_dma_sync_sg_for_cpu swiotlb_sync_sg_for_cpu;
-extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device;
-extern ia64_mv_dma_sync_sg_for_device swiotlb_sync_sg_for_device;
-extern ia64_mv_dma_mapping_error swiotlb_dma_mapping_error;
-extern ia64_mv_dma_supported swiotlb_dma_supported;
-
/*
* Define default versions so we can extend machvec for new platforms without having
* to update the machvec files for all existing platforms.
*/
#define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1))
#define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
-#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
#ifdef CONFIG_NUMA
extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
#define sal_log_severity_fatal 1
#define sal_log_severity_corrected 2
+/*
+ * Error Recovery Info (ERI) bit decode. From SAL Spec section B.2.2 Table B-3
+ * Error Section Error_Recovery_Info Field Definition.
+ */
+#define ERI_NOT_VALID 0x0 /* Error Recovery Field is not valid */
+#define ERI_NOT_ACCESSIBLE 0x30 /* Resource not accessible */
+#define ERI_CONTAINMENT_WARN 0x22 /* Corrupt data propagated */
+#define ERI_UNCORRECTED_ERROR 0x20 /* Uncorrected error */
+#define ERI_COMPONENT_RESET 0x24 /* Component must be reset */
+#define ERI_CORR_ERROR_LOG 0x21 /* Corrected error, needs logging */
+#define ERI_CORR_ERROR_THRESH 0x29 /* Corrected error threshold exceeded */
+
/* Definition of log section header structures */
typedef struct sal_log_sec_header {
efi_guid_t guid; /* Unique Section ID */
sal_log_revision_t revision; /* Major and Minor revision of Section */
- u16 reserved;
+ u8 error_recovery_info; /* Platform error recovery status */
+ u8 reserved;
u32 len; /* Section length */
} sal_log_section_hdr_t;
#define SN_SAL_SET_CPU_NUMBER 0x02000068
#define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069
+#define SN_SAL_WATCHLIST_ALLOC 0x02000070
+#define SN_SAL_WATCHLIST_FREE 0x02000071
/*
* Service-specific constants
SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
return rv.status;
}
+
+union sn_watchlist_u {
+ u64 val;
+ struct {
+ u64 blade : 16,
+ size : 32,
+ filler : 16;
+ };
+};
+
+static inline int
+sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
+ unsigned long *intr_mmr_offset)
+{
+ struct ia64_sal_retval rv;
+ unsigned long addr;
+ union sn_watchlist_u size_blade;
+ int watchlist;
+
+ addr = (unsigned long)mq;
+ size_blade.size = mq_size;
+ size_blade.blade = blade;
+
+ /*
+ * bios returns watchlist number or negative error number.
+ */
+ ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
+ size_blade.val, (u64)intr_mmr_offset,
+ (u64)&watchlist, 0, 0, 0);
+ if (rv.status < 0)
+ return rv.status;
+
+ return watchlist;
+}
+
+static inline int
+sn_mq_watchlist_free(int blade, int watchlist_num)
+{
+ struct ia64_sal_retval rv;
+ ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
+ watchlist_num, 0, 0, 0, 0, 0);
+ return rv.status;
+}
#endif /* _ASM_IA64_SN_SN_SAL_H */
return 0;
}
+int __init early_acpi_boot_init(void)
+{
+ int ret;
+
+ /*
+ * do a partial walk of MADT to determine how many CPUs
+ * we have including offline CPUs
+ */
+ if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
+ printk(KERN_ERR PREFIX "Can't find MADT\n");
+ return 0;
+ }
+
+ ret = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
+ acpi_parse_lsapic, NR_CPUS);
+ if (ret < 1)
+ printk(KERN_ERR PREFIX
+ "Error parsing MADT - no LAPIC entries\n");
+
+ return 0;
+}
+
+
+
int __init acpi_boot_init(void)
{
printk(KERN_ERR PREFIX
"Error parsing LAPIC address override entry\n");
- if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS)
- < 1)
- printk(KERN_ERR PREFIX
- "Error parsing MADT - no LAPIC entries\n");
-
if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
< 0)
printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
#include <asm/machvec.h>
#include <linux/dma-mapping.h>
-#include <asm/machvec.h>
#include <asm/system.h>
#ifdef CONFIG_DMAR
#include <linux/kernel.h>
-#include <linux/string.h>
#include <asm/page.h>
#include <asm/iommu.h>
}
#endif
-#ifdef CONFIG_CRASH_KERNEL
+#ifdef CONFIG_CRASH_DUMP
if (reserve_elfcorehdr(&rsvd_region[n].start,
&rsvd_region[n].end) == 0)
n++;
#ifdef CONFIG_ACPI
/* Initialize the ACPI boot-time table parser */
acpi_table_init();
+ early_acpi_boot_init();
# ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+ prefill_possible_map();
+#endif
per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
32 : cpus_weight(early_cpu_possible_map)),
additional_cpus > 0 ? additional_cpus : 0);
setup_per_cpu_areas (void)
{
/* start_kernel() requires this... */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
- prefill_possible_map();
-#endif
}
/*
(min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT;
#endif
start = GRANULEROUNDDOWN(start);
- start = ORDERROUNDDOWN(start);
end = GRANULEROUNDUP(end);
mem_data[node].max_pfn = max(mem_data[node].max_pfn,
end >> PAGE_SHIFT);
#ifdef CONFIG_IA64_SGI_UV
int sn_prom_type;
+long sn_partition_id;
+EXPORT_SYMBOL(sn_partition_id);
+long sn_coherency_id;
+EXPORT_SYMBOL_GPL(sn_coherency_id);
+long sn_region_size;
+EXPORT_SYMBOL(sn_region_size);
#endif
struct redir_addr {
#include <linux/kexec.h>
#include <linux/crash_dump.h>
+#include <asm/kexec.h>
#include <asm/reg.h>
#include <asm/io.h>
#include <asm/prom.h>
{
struct pci_controller *phb;
int primary;
- struct pci_bus *b;
primary = list_empty(&hose_list);
phb = pcibios_alloc_controller(dn);
def_bool X86_64
depends on NUMA
-menu "Power management options"
+menu "Power management and ACPI options"
depends on !X86_VOYAGER
config ARCH_HIBERNATION_HEADER
acpi_pci_disabled = 1;
acpi_noirq_set();
}
-extern int acpi_irq_balance_set(char *str);
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
#define LAST_VM86_IRQ 15
#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_IO_APIC) && !defined(CONFIG_X86_VOYAGER)
# if NR_CPUS < MAX_IO_APICS
# define NR_IRQS (NR_VECTORS + (32 * NR_CPUS))
# else
# define NR_IRQS (NR_VECTORS + (32 * MAX_IO_APICS))
# endif
-#elif !defined(CONFIG_X86_VOYAGER)
+#elif defined(CONFIG_X86_VOYAGER)
-# if defined(CONFIG_X86_IO_APIC) || defined(CONFIG_PARAVIRT) || defined(CONFIG_X86_VISWS)
-
-# define NR_IRQS 224
-
-# else /* IO_APIC || PARAVIRT */
-
-# define NR_IRQS 16
-
-# endif
+# define NR_IRQS 224
-#else /* !VISWS && !VOYAGER */
+#else /* IO_APIC || VOYAGER */
-# define NR_IRQS 224
+# define NR_IRQS 16
-#endif /* VISWS */
+#endif
/* Voyager specific defines */
/* These define the CPIs we use in linux */
{
DECLARE_ARGS(val, low, high);
- rdtsc_barrier();
asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
- rdtsc_barrier();
return EAX_EDX_VAL(val, low, high);
}
#endif
-/* sched_domains SD_NODE_INIT for NUMAQ machines */
+/* sched_domains SD_NODE_INIT for NUMA machines */
#define SD_NODE_INIT (struct sched_domain) { \
.min_interval = 8, \
.max_interval = 32, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_EXEC \
| SD_BALANCE_FORK \
- | SD_SERIALIZE \
- | SD_WAKE_BALANCE, \
+ | SD_WAKE_AFFINE \
+ | SD_WAKE_BALANCE \
+ | SD_SERIALIZE, \
.last_balance = jiffies, \
.balance_interval = 1, \
}
static __always_inline cycles_t vget_cycles(void)
{
+ cycles_t cycles;
+
/*
* We only do VDSOs on TSC capable CPUs, so this shouldnt
* access boot_cpu_data (which is not VDSO-safe):
if (!cpu_has_tsc)
return 0;
#endif
- return (cycles_t)__native_read_tsc();
+ rdtsc_barrier();
+ cycles = (cycles_t)__native_read_tsc();
+ rdtsc_barrier();
+
+ return cycles;
}
extern void tsc_init(void);
extern void voyager_cat_power_off(void);
extern void voyager_cat_do_common_interrupt(void);
extern void voyager_handle_nmi(void);
+extern void voyager_smp_intr_init(void);
/* Commands for the following are */
#define VOYAGER_PSI_READ 0
#define VOYAGER_PSI_WRITE 1
error = acpi_parse_madt_ioapic_entries();
if (!error) {
acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
- acpi_irq_balance_set(NULL);
acpi_ioapic = 1;
smp_found_config = 1;
/* returns !0 if the IOMMU is caching non-present entries in its TLB */
static int iommu_has_npcache(struct amd_iommu *iommu)
{
- return iommu->cap & IOMMU_CAP_NPCACHE;
+ return iommu->cap & (1UL << IOMMU_CAP_NPCACHE);
}
/****************************************************************************
{
address >>= PAGE_SHIFT;
iommu_area_free(dom->bitmap, address, pages);
+
+ if (address + pages >= dom->next_bit)
+ dom->need_flush = true;
}
/****************************************************************************
dma_ops_free_addresses(dma_dom, dma_addr, pages);
- if (amd_iommu_unmap_flush)
+ if (amd_iommu_unmap_flush || dma_dom->need_flush) {
iommu_flush_pages(iommu, dma_dom->domain.id, dma_addr, size);
+ dma_dom->need_flush = false;
+ }
}
/*
/* something wrong ? */
if (nr < nr_min)
nr = nr_min;
+ if (WARN_ON(nr > NR_IRQS))
+ nr = NR_IRQS;
return nr;
}
static const struct desc_ptr no_idt = {};
static int reboot_mode;
-/*
- * Keyboard reset and triple fault may result in INIT, not RESET, which
- * doesn't work when we're in vmx root mode. Try ACPI first.
- */
-enum reboot_type reboot_type = BOOT_ACPI;
+enum reboot_type reboot_type = BOOT_KBD;
int reboot_force;
#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
flush_mm = mm;
flush_va = va;
cpus_or(flush_cpumask, cpumask, flush_cpumask);
+
+ /*
+ * Make the above memory operations globally visible before
+ * sending the IPI.
+ */
+ smp_mb();
/*
* We have to send the IPI only to
* CPUs affected.
f->flush_va = va;
cpus_or(f->flush_cpumask, cpumask, f->flush_cpumask);
+ /*
+ * Make the above memory operations globally visible before
+ * sending the IPI.
+ */
+ smp_mb();
/*
* We have to send the IPI only to
* CPUs affected.
rdtscll(this_offset);
/* return the value in ns */
- return cycles_2_ns(this_offset);
+ return __cycles_2_ns(this_offset);
}
/* We need to define a real function for sched_clock, to override the
cpu_khz = calibrate_cpu();
#endif
- lpj = ((u64)tsc_khz * 1000);
- do_div(lpj, HZ);
- lpj_fine = lpj;
-
printk("Detected %lu.%03lu MHz processor.\n",
(unsigned long)cpu_khz / 1000,
(unsigned long)cpu_khz % 1000);
/* now allow native_sched_clock() to use rdtsc */
tsc_disabled = 0;
+ lpj = ((u64)tsc_khz * 1000);
+ do_div(lpj, HZ);
+ lpj_fine = lpj;
+
use_tsc_delay();
/* Check and install the TSC clocksource */
dmi_check_system(bad_tsc_dmi_table);
void __init intr_init_hook(void)
{
#ifdef CONFIG_SMP
- smp_intr_init();
+ voyager_smp_intr_init();
#endif
setup_irq(2, &irq2);
#define QIC_SET_GATE(cpi, vector) \
set_intr_gate((cpi) + QIC_DEFAULT_CPI_BASE, (vector))
-void __init smp_intr_init(void)
+void __init voyager_smp_intr_init(void)
{
int i;
void arch_report_meminfo(struct seq_file *m)
{
- seq_printf(m, "DirectMap4k: %8lu kB\n",
+ seq_printf(m, "DirectMap4k: %8lu kB\n",
direct_pages_count[PG_LEVEL_4K] << 2);
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
- seq_printf(m, "DirectMap2M: %8lu kB\n",
+ seq_printf(m, "DirectMap2M: %8lu kB\n",
direct_pages_count[PG_LEVEL_2M] << 11);
#else
- seq_printf(m, "DirectMap4M: %8lu kB\n",
+ seq_printf(m, "DirectMap4M: %8lu kB\n",
direct_pages_count[PG_LEVEL_2M] << 12);
#endif
#ifdef CONFIG_X86_64
if (direct_gbpages)
- seq_printf(m, "DirectMap1G: %8lu kB\n",
+ seq_printf(m, "DirectMap1G: %8lu kB\n",
direct_pages_count[PG_LEVEL_1G] << 20);
#endif
}
static int counter_width = 32;
#define CTR_IS_RESERVED(msrs, c) (msrs->counters[(c)].addr ? 1 : 0)
-#define CTR_READ(l, h, msrs, c) do {rdmsr(msrs->counters[(c)].addr, (l), (h)); } while (0)
-#define CTR_OVERFLOWED(n) (!((n) & (1U<<(counter_width-1))))
+#define CTR_OVERFLOWED(n) (!((n) & (1ULL<<(counter_width-1))))
#define CTRL_IS_RESERVED(msrs, c) (msrs->controls[(c)].addr ? 1 : 0)
#define CTRL_READ(l, h, msrs, c) do {rdmsr((msrs->controls[(c)].addr), (l), (h)); } while (0)
static int ppro_check_ctrs(struct pt_regs * const regs,
struct op_msrs const * const msrs)
{
- unsigned int low, high;
+ u64 val;
int i;
for (i = 0 ; i < num_counters; ++i) {
if (!reset_value[i])
continue;
- CTR_READ(low, high, msrs, i);
- if (CTR_OVERFLOWED(low)) {
+ rdmsrl(msrs->counters[i].addr, val);
+ if (CTR_OVERFLOWED(val)) {
oprofile_add_sample(regs, i);
wrmsrl(msrs->counters[i].addr, -reset_value[i]);
}
if (PagePinned(virt_to_page(mm->pgd))) {
SetPagePinned(page);
+ vm_unmap_aliases();
if (!PageHighMem(page)) {
make_lowmem_page_readonly(__va(PFN_PHYS((unsigned long)pfn)));
if (level == PT_PTE && USE_SPLIT_PTLOCKS)
pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
- } else
+ } else {
/* make sure there are no stray mappings of
this page */
kmap_flush_unused();
- vm_unmap_aliases();
+ }
}
}
read-only, and can be pinned. */
static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd)
{
+ vm_unmap_aliases();
+
xen_mc_batch();
- if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) {
- /* re-enable interrupts for kmap_flush_unused */
+ if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) {
+ /* re-enable interrupts for flushing */
xen_mc_issue(0);
+
kmap_flush_unused();
- vm_unmap_aliases();
+
xen_mc_batch();
}
#else /* CONFIG_X86_32 */
#ifdef CONFIG_X86_PAE
/* Need to make sure unshared kernel PMD is pinnable */
- xen_pin_page(mm, virt_to_page(pgd_page(pgd[pgd_index(TASK_SIZE)])),
+ xen_pin_page(mm, pgd_page(pgd[pgd_index(TASK_SIZE)]),
PT_PMD);
#endif
xen_do_pin(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(pgd)));
#ifdef CONFIG_X86_PAE
/* Need to make sure unshared kernel PMD is unpinned */
- xen_unpin_page(mm, virt_to_page(pgd_page(pgd[pgd_index(TASK_SIZE)])),
+ xen_unpin_page(mm, pgd_page(pgd[pgd_index(TASK_SIZE)]),
PT_PMD);
#endif
{
struct gendisk *disk = req->rq_disk;
- blk_delete_timer(req);
-
if (blk_rq_tagged(req))
blk_queue_end_tag(req->q, req);
if (unlikely(laptop_mode) && blk_fs_request(req))
laptop_io_completion();
+ blk_delete_timer(req);
+
/*
* Account IO completion. bar_rq isn't accounted as a normal
* IO on queueing nor completion. Accounting the containing
}
EXPORT_SYMBOL(blk_rq_map_sg);
-static inline int ll_new_mergeable(struct request_queue *q,
- struct request *req,
- struct bio *bio)
-{
- int nr_phys_segs = bio_phys_segments(q, bio);
-
- if (req->nr_phys_segments + nr_phys_segs > q->max_phys_segments) {
- req->cmd_flags |= REQ_NOMERGE;
- if (req == q->last_merge)
- q->last_merge = NULL;
- return 0;
- }
-
- /*
- * A hw segment is just getting larger, bump just the phys
- * counter.
- */
- req->nr_phys_segments += nr_phys_segs;
- return 1;
-}
-
static inline int ll_new_hw_segment(struct request_queue *q,
struct request *req,
struct bio *bio)
{
struct request_queue *q = req->q;
- /*
- * Nothing to detach
- */
- if (!q->rq_timed_out_fn || !req->deadline)
- return;
-
list_del_init(&req->timeout_list);
-
if (list_empty(&q->timeout_list))
del_timer(&q->timeout);
}
}
if (next_set && !list_empty(&q->timeout_list))
- mod_timer(&q->timeout, round_jiffies(next));
+ mod_timer(&q->timeout, round_jiffies_up(next));
spin_unlock_irqrestore(q->queue_lock, flags);
}
/*
* If the timer isn't already pending or this timeout is earlier
- * than an existing one, modify the timer. Round to next nearest
+ * than an existing one, modify the timer. Round up to next nearest
* second.
*/
- expiry = round_jiffies(req->deadline);
-
- /*
- * We use ->deadline == 0 to detect whether a timer was added or
- * not, so just increase to next jiffy for that specific case
- */
- if (unlikely(!req->deadline))
- req->deadline = 1;
+ expiry = round_jiffies_up(req->deadline);
if (!timer_pending(&q->timeout) ||
time_before(expiry, q->timeout.expires))
*/
rq->cmd_flags |= REQ_STARTED;
blk_add_trace_rq(q, rq, BLK_TA_ISSUE);
-
- /*
- * We are now handing the request to the hardware,
- * add the timeout handler
- */
- blk_add_timer(rq);
}
if (!q->boundary_rq || q->boundary_rq == rq) {
*/
if (blk_account_rq(rq))
q->in_flight++;
+
+ /*
+ * We are now handing the request to the hardware, add the
+ * timeout handler.
+ */
+ blk_add_timer(rq);
}
EXPORT_SYMBOL(elv_dequeue_request);
bool "Debug Statements"
default n
help
- The ACPI driver can optionally report errors with a great deal
- of verbosity. Saying Y enables these statements. This will increase
- your kernel size by around 50K.
+ The ACPI subsystem can produce debug output. Saying Y enables this
+ output and increases the kernel size by around 50K.
+
+ Use the acpi.debug_layer and acpi.debug_level kernel command-line
+ parameters documented in Documentation/acpi/debug.txt and
+ Documentation/kernel-parameters.txt to control the type and
+ amount of debug output.
config ACPI_DEBUG_FUNC_TRACE
bool "Additionally enable ACPI function tracing"
ACPI Debug Statements slow down ACPI processing. Function trace
is about half of the penalty and is rarely useful.
-config ACPI_EC
- bool
- default y
- help
- This driver is required on some systems for the proper operation of
- the battery and thermal drivers. If you are compiling for a
- mobile system, say Y.
-
config ACPI_PCI_SLOT
tristate "PCI slot detection driver"
default n
help you correlate PCI bus addresses with the physical geography
of your slots. If you are unsure, say N.
-config ACPI_POWER
- bool
- default y
-
config ACPI_SYSTEM
bool
default y
obj-y += bus.o glue.o
obj-y += scan.o
# Keep EC driver first. Initialization of others depend on it.
-obj-$(CONFIG_ACPI_EC) += ec.o
+obj-y += ec.o
obj-$(CONFIG_ACPI_AC) += ac.o
obj-$(CONFIG_ACPI_BATTERY) += battery.o
obj-$(CONFIG_ACPI_BUTTON) += button.o
obj-$(CONFIG_ACPI_FAN) += fan.o
obj-$(CONFIG_ACPI_DOCK) += dock.o
obj-$(CONFIG_ACPI_VIDEO) += video.o
+ifdef CONFIG_ACPI_VIDEO
+obj-y += video_detect.o
+endif
+
obj-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
obj-$(CONFIG_ACPI_PCI_SLOT) += pci_slot.o
obj-$(CONFIG_ACPI_PROCESSOR) += processor.o
obj-$(CONFIG_ACPI_CONTAINER) += container.o
obj-$(CONFIG_ACPI_THERMAL) += thermal.o
-obj-$(CONFIG_ACPI_POWER) += power.o
+obj-y += power.o
obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o
obj-$(CONFIG_ACPI_DEBUG) += debug.o
obj-$(CONFIG_ACPI_NUMA) += numa.o
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_AC_COMPONENT 0x00020000
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_AC_DEVICE_NAME "AC Adapter"
#define ACPI_AC_FILE_STATE "state"
acpi_ac_get_state(ac);
acpi_bus_generate_proc_event(device, event, (u32) ac->state);
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event,
+ dev_name(&device->dev), event,
(u32) ac->state);
#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
#include <linux/memory_hotplug.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_MEMORY_DEVICE_COMPONENT 0x08000000UL
#define ACPI_MEMORY_DEVICE_CLASS "memory"
#define ACPI_MEMORY_DEVICE_HID "PNP0C80"
#define ACPI_MEMORY_DEVICE_NAME "Hotplug Mem Device"
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
-#define ACPI_BATTERY_COMPONENT 0x00040000
#define ACPI_BATTERY_CLASS "battery"
#define ACPI_BATTERY_DEVICE_NAME "Battery"
#define ACPI_BATTERY_NOTIFY_STATUS 0x80
acpi_bus_generate_proc_event(device, event,
acpi_battery_present(battery));
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event,
+ dev_name(&device->dev), event,
acpi_battery_present(battery));
#ifdef CONFIG_ACPI_SYSFS_POWER
/* acpi_batter_update could remove power_supply object */
if (acpi_disabled)
return;
+ /*
+ * ACPI CA initializes acpi_dbg_level to non-zero, which means
+ * we get debug output merely by turning on CONFIG_ACPI_DEBUG.
+ * Turn it off so we don't get output unless the user specifies
+ * acpi.debug_level.
+ */
+ acpi_dbg_level = 0;
+
printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
/* enable workarounds, unless strict ACPI spec. compliance */
"Unable to initialize ACPI OS objects\n");
goto error1;
}
-#ifdef CONFIG_ACPI_EC
+
/*
* ACPI 2.0 requires the EC driver to be loaded and work before
* the EC device is found in the namespace (i.e. before acpi_initialize_objects()
*/
status = acpi_ec_ecdt_probe();
/* Ignore result. Not having an ECDT is not fatal. */
-#endif
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
if (ACPI_FAILURE(status)) {
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_BUTTON_COMPONENT 0x00080000
#define ACPI_BUTTON_CLASS "button"
#define ACPI_BUTTON_FILE_INFO "info"
#define ACPI_BUTTON_FILE_STATE "state"
ACPI_MODULE_NAME("cm_sbs");
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_BATTERY_CLASS "battery"
-#define ACPI_SBS_COMPONENT 0x00080000
#define _COMPONENT ACPI_SBS_COMPONENT
static struct proc_dir_entry *acpi_ac_dir;
static struct proc_dir_entry *acpi_battery_dir;
return;
}
EXPORT_SYMBOL(acpi_unlock_battery_dir);
-
-static int __init acpi_cm_sbs_init(void)
-{
- return 0;
-}
-subsys_initcall(acpi_cm_sbs_init);
#define INSTALL_NOTIFY_HANDLER 1
#define UNINSTALL_NOTIFY_HANDLER 2
-#define ACPI_CONTAINER_COMPONENT 0x01000000
#define _COMPONENT ACPI_CONTAINER_COMPONENT
ACPI_MODULE_NAME("container");
ACPI_DEBUG_INIT(ACPI_CA_DISASSEMBLER),
ACPI_DEBUG_INIT(ACPI_COMPILER),
ACPI_DEBUG_INIT(ACPI_TOOLS),
+
+ ACPI_DEBUG_INIT(ACPI_BUS_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_POWER_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_THERMAL_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_VIDEO_COMPONENT),
+ ACPI_DEBUG_INIT(ACPI_PROCESSOR_COMPONENT),
};
static const struct acpi_dlevel acpi_debug_levels[] = {
ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
{
acpi_status status;
- unsigned long long tmp;
+ unsigned long long tmp = 0;
struct acpi_ec *ec = context;
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
return status;
ec->gpe = tmp;
/* Use the global lock for all EC transactions? */
+ tmp = 0;
acpi_evaluate_integer(handle, "_GLK", NULL, &tmp);
ec->global_lock = tmp;
ec->handle = handle;
*/
status = acpi_hw_low_disable_gpe(gpe_event_info);
return_ACPI_STATUS(status);
-
- return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
if (value)
*event_status |= ACPI_EVENT_FLAG_SET;
+ if (acpi_gbl_fixed_event_handlers[event].handler)
+ *event_status |= ACPI_EVENT_FLAG_HANDLE;
+
return_ACPI_STATUS(status);
}
status = acpi_hw_get_gpe_status(gpe_event_info, event_status);
+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
+ *event_status |= ACPI_EVENT_FLAG_HANDLE;
+
unlock_and_exit:
if (flags & ACPI_NOT_ISR) {
(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_FAN_COMPONENT 0x00200000
#define ACPI_FAN_CLASS "fan"
#define ACPI_FAN_FILE_STATE "state"
EXPORT_SYMBOL(acpi_get_physical_device);
+/* ToDo: When a PCI bridge is found, return the PCI device behind the bridge
+ * This should work in general, but did not on a Lenovo T61 for the
+ * graphics card. But this must be fixed when the PCI device is
+ * bound and the kernel device struct is attached to the acpi device
+ * Note: A success call will increase reference count by one
+ * Do call put_device(dev) on the returned device then
+ */
+struct device *acpi_get_physical_pci_device(acpi_handle handle)
+{
+ struct device *dev;
+ long long device_id;
+ acpi_status status;
+
+ status =
+ acpi_evaluate_integer(handle, "_ADR", NULL, &device_id);
+
+ if (ACPI_FAILURE(status))
+ return NULL;
+
+ /* We need to attempt to determine whether the _ADR refers to a
+ PCI device or not. There's no terribly good way to do this,
+ so the best we can hope for is to assume that there'll never
+ be a device in the host bridge */
+ if (device_id >= 0x10000) {
+ /* It looks like a PCI device. Does it exist? */
+ dev = acpi_get_physical_device(handle);
+ } else {
+ /* It doesn't look like a PCI device. Does its parent
+ exist? */
+ acpi_handle phandle;
+ if (acpi_get_parent(handle, &phandle))
+ return NULL;
+ dev = acpi_get_physical_device(phandle);
+ }
+ if (!dev)
+ return NULL;
+ return dev;
+}
+EXPORT_SYMBOL(acpi_get_physical_pci_device);
+
static int acpi_bind_one(struct device *dev, acpi_handle handle)
{
struct acpi_device *acpi_dev;
return 0;
}
-static int acpi_irq_balance; /* 0: static, 1: balance */
+static int acpi_irq_balance = -1; /* 0: static, 1: balance */
static int acpi_pci_link_allocate(struct acpi_pci_link *link)
{
static int __init acpi_pci_link_init(void)
{
-
if (acpi_noirq)
return 0;
+ if (acpi_irq_balance == -1) {
+ /* no command line switch: enable balancing in IOAPIC mode */
+ if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC)
+ acpi_irq_balance = 1;
+ else
+ acpi_irq_balance = 0;
+ }
+
acpi_link.count = 0;
INIT_LIST_HEAD(&acpi_link.entries);
static int __init acpi_pci_root_init(void)
{
-
if (acpi_pci_disabled)
return 0;
- /* DEBUG:
- acpi_dbg_layer = ACPI_PCI_COMPONENT;
- acpi_dbg_level = 0xFFFFFFFF;
- */
-
if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
return -ENODEV;
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define _COMPONENT ACPI_POWER_COMPONENT
+#define _COMPONENT ACPI_POWER_COMPONENT
ACPI_MODULE_NAME("power");
-#define ACPI_POWER_COMPONENT 0x00800000
#define ACPI_POWER_CLASS "power_resource"
#define ACPI_POWER_DEVICE_NAME "Power Resource"
#define ACPI_POWER_FILE_INFO "info"
ACPI_POWER_RESOURCE_STATE_OFF;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
- acpi_ut_get_node_name(handle), state ? "on" : "off"));
+ acpi_ut_get_node_name(handle),
+ *state ? "on" : "off"));
return 0;
}
cl = &device->power.states[device->power.state].resources;
tl = &device->power.states[state].resources;
- if (!cl->count && !tl->count) {
- result = -ENODEV;
- goto end;
- }
-
/* TBD: Resources must be ordered. */
/*
#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
-#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
#define ACPI_PROCESSOR_FILE_INFO "info"
acpi_bus_generate_proc_event(device, event,
pr->performance_platform_limit);
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event,
+ dev_name(&device->dev), event,
pr->performance_platform_limit);
break;
case ACPI_PROCESSOR_NOTIFY_POWER:
acpi_processor_cst_has_changed(pr);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event, 0);
+ dev_name(&device->dev), event, 0);
break;
case ACPI_PROCESSOR_NOTIFY_THROTTLING:
acpi_processor_tstate_has_changed(pr);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event, 0);
+ dev_name(&device->dev), event, 0);
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Unsupported event [0x%x]\n", event));
#include <acpi/processor.h>
#include <asm/processor.h>
-#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_idle");
#endif
#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
-#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define ACPI_PROCESSOR_FILE_PERFORMANCE "performance"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
#include <acpi/processor.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_thermal");
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
-#define ACPI_PROCESSOR_COMPONENT 0x01000000
#define ACPI_PROCESSOR_CLASS "processor"
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_throttling");
rr = &acpi_gbl_FADT.reset_register;
- /*
- * Is the ACPI reset register supported?
- *
- * According to ACPI 3.0, FADT.flags.RESET_REG_SUP indicates
- * whether the ACPI reset mechanism is supported.
- *
- * However, some boxes have this bit clear, yet a valid
- * ACPI_RESET_REG & RESET_VALUE, and ACPI reboot is the only
- * mechanism that works for them after S3.
- *
- * This suggests that other operating systems may not be checking
- * the RESET_REG_SUP bit, and are using other means to decide
- * whether to use the ACPI reboot mechanism or not.
- *
- * So when acpi reboot is requested,
- * only the reset_register is checked. If the following
- * conditions are met, it indicates that the reset register is supported.
- * a. reset_register is not zero
- * b. the access width is eight
- * c. the bit_offset is zero
- */
- if (!(rr->address) || rr->bit_width != 8 || rr->bit_offset != 0)
+ /* Is the reset register supported? */
+ if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
+ rr->bit_width != 8 || rr->bit_offset != 0)
return;
reset_value = acpi_gbl_FADT.reset_value;
return 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Hot-removing device %s...\n", device->dev.bus_id));
-
+ "Hot-removing device %s...\n", dev_name(&device->dev)));
if (acpi_bus_trim(device, 1)) {
printk(KERN_ERR PREFIX
acpi_device_bus_id->instance_no = 0;
list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list);
}
- sprintf(device->dev.bus_id, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
+ dev_set_name(&device->dev, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
if (device->parent) {
list_add_tail(&device->node, &device->parent->children);
result = acpi_device_setup_files(device);
if(result)
- printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n", device->dev.bus_id);
+ printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n",
+ dev_name(&device->dev));
device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
}
}
-static int
-acpi_video_bus_match(struct acpi_device *device)
-{
- acpi_handle h_dummy;
-
- if (!device)
- return -EINVAL;
-
- /* Since there is no HID, CID for ACPI Video drivers, we have
- * to check well known required nodes for each feature we support.
- */
-
- /* Does this device able to support video switching ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy)))
- return 0;
-
- /* Does this device able to retrieve a video ROM ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy)))
- return 0;
-
- /* Does this device able to configure which video head to be POSTed ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy)))
- return 0;
-
- return -ENODEV;
-}
-
/*
* acpi_bay_match - see if a device is an ejectable driver bay
*
will get autoloaded and the device might still match
against another driver.
*/
- if (ACPI_SUCCESS(acpi_video_bus_match(device)))
+ if (acpi_is_video_device(device))
cid_add = ACPI_VIDEO_HID;
else if (ACPI_SUCCESS(acpi_bay_match(device)))
cid_add = ACPI_BAY_HID;
dev->wakeup.state.enabled ? "enabled" : "disabled");
if (ldev)
seq_printf(seq, "%s:%s",
- ldev->bus ? ldev->bus->name : "no-bus",
- ldev->bus_id);
+ dev_name(ldev) ? ldev->bus->name : "no-bus",
+ dev_name(ldev));
seq_printf(seq, "\n");
put_device(ldev);
container_of(bin_attr, struct acpi_table_attr, attr);
struct acpi_table_header *table_header = NULL;
acpi_status status;
+ char name[ACPI_NAME_SIZE];
+
+ if (strncmp(table_attr->name, "NULL", 4))
+ memcpy(name, table_attr->name, ACPI_NAME_SIZE);
+ else
+ memcpy(name, "\0\0\0\0", 4);
status =
- acpi_get_table(table_attr->name, table_attr->instance,
+ acpi_get_table(name, table_attr->instance,
&table_header);
if (ACPI_FAILURE(status))
return -ENODEV;
struct acpi_table_header *header = NULL;
struct acpi_table_attr *attr = NULL;
- memcpy(table_attr->name, table_header->signature, ACPI_NAME_SIZE);
+ if (table_header->signature[0] != '\0')
+ memcpy(table_attr->name, table_header->signature,
+ ACPI_NAME_SIZE);
+ else
+ memcpy(table_attr->name, "NULL", 4);
list_for_each_entry(attr, &acpi_table_attr_list, node) {
- if (!memcmp(table_header->signature, attr->name,
- ACPI_NAME_SIZE))
+ if (!memcmp(table_attr->name, attr->name, ACPI_NAME_SIZE))
if (table_attr->instance < attr->instance)
table_attr->instance = attr->instance;
}
table_attr->instance++;
if (table_attr->instance > 1 || (table_attr->instance == 1 &&
- !acpi_get_table(table_header->
- signature, 2,
- &header)))
- sprintf(table_attr->name + 4, "%d", table_attr->instance);
+ !acpi_get_table
+ (table_header->signature, 2, &header)))
+ sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
+ table_attr->instance);
table_attr->attr.size = 0;
table_attr->attr.read = acpi_table_show;
#define COUNT_ERROR 2 /* other */
#define NUM_COUNTERS_EXTRA 3
-#define ACPI_EVENT_VALID 0x01
struct event_counter {
u32 count;
u32 flags;
} else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
result = acpi_get_event_status(index - num_gpes, status);
- /*
- * sleep/power button GPE/Fixed Event is enabled after acpi_system_init,
- * check the status at runtime and mark it as valid once it's enabled
- */
- if (!result && (*status & ACPI_EVENT_FLAG_ENABLED))
- all_counters[index].flags |= ACPI_EVENT_VALID;
end:
return result;
}
if (result)
goto end;
- if (!(all_counters[index].flags & ACPI_EVENT_VALID))
- size += sprintf(buf + size, " invalid");
+ if (!(status & ACPI_EVENT_FLAG_HANDLE))
+ size += sprintf(buf + size, " invalid");
else if (status & ACPI_EVENT_FLAG_ENABLED)
- size += sprintf(buf + size, " enable");
+ size += sprintf(buf + size, " enabled");
+ else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
+ size += sprintf(buf + size, " wake_enabled");
else
- size += sprintf(buf + size, " disable");
+ size += sprintf(buf + size, " disabled");
end:
size += sprintf(buf + size, "\n");
if (result)
goto end;
- if (!(all_counters[index].flags & ACPI_EVENT_VALID)) {
+ if (!(status & ACPI_EVENT_FLAG_HANDLE)) {
printk(KERN_WARNING PREFIX
"Can not change Invalid GPE/Fixed Event status\n");
return -EINVAL;
* The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
* offset 45, 55, 95, and the word located at offset 109, 110.
*/
- if (acpi_gbl_FADT.header.revision < 3) {
+ if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
acpi_gbl_FADT.preferred_profile = 0;
acpi_gbl_FADT.pstate_control = 0;
acpi_gbl_FADT.cst_control = 0;
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_THERMAL_COMPONENT 0x04000000
#define ACPI_THERMAL_CLASS "thermal_zone"
#define ACPI_THERMAL_DEVICE_NAME "Thermal Zone"
#define ACPI_THERMAL_FILE_STATE "state"
acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
tz->trips.critical.flags.enabled);
acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
- tz->device->dev.bus_id,
+ dev_name(&tz->device->dev),
ACPI_THERMAL_NOTIFY_CRITICAL,
tz->trips.critical.flags.enabled);
acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
tz->trips.hot.flags.enabled);
acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
- tz->device->dev.bus_id,
+ dev_name(&tz->device->dev),
ACPI_THERMAL_NOTIFY_HOT,
tz->trips.hot.flags.enabled);
acpi_thermal_check(tz);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event, 0);
+ dev_name(&device->dev), event, 0);
break;
case ACPI_THERMAL_NOTIFY_DEVICES:
acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES);
acpi_thermal_check(tz);
acpi_bus_generate_proc_event(device, event, 0);
acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event, 0);
+ dev_name(&device->dev), event, 0);
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#define ACPI_VIDEO_COMPONENT 0x08000000
#define ACPI_VIDEO_CLASS "video"
#define ACPI_VIDEO_BUS_NAME "Video Bus"
#define ACPI_VIDEO_DEVICE_NAME "Video Device"
device->cap._DSS = 1;
}
- max_level = acpi_video_init_brightness(device);
+ if (acpi_video_backlight_support())
+ max_level = acpi_video_init_brightness(device);
if (device->cap._BCL && device->cap._BCM && max_level > 0) {
int result;
printk(KERN_ERR PREFIX "Create sysfs link\n");
}
- if (device->cap._DCS && device->cap._DSS){
- static int count = 0;
- char *name;
- name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
- if (!name)
- return;
- sprintf(name, "acpi_video%d", count++);
- device->output_dev = video_output_register(name,
- NULL, device, &acpi_output_properties);
- kfree(name);
+
+ if (acpi_video_display_switch_support()) {
+
+ if (device->cap._DCS && device->cap._DSS) {
+ static int count;
+ char *name;
+ name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
+ if (!name)
+ return;
+ sprintf(name, "acpi_video%d", count++);
+ device->output_dev = video_output_register(name,
+ NULL, device, &acpi_output_properties);
+ kfree(name);
+ }
}
- return;
}
/*
static int acpi_video_bus_check(struct acpi_video_bus *video)
{
acpi_status status = -ENOENT;
-
+ struct device *dev;
if (!video)
return -EINVAL;
+ dev = acpi_get_physical_pci_device(video->device->handle);
+ if (!dev)
+ return -ENODEV;
+ put_device(dev);
+
/* Since there is no HID, CID and so on for VGA driver, we have
* to check well known required nodes.
*/
{
int result = 0;
-
- /*
- acpi_dbg_level = 0xFFFFFFFF;
- acpi_dbg_layer = 0x08000000;
- */
-
acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
if (!acpi_video_dir)
return -ENODEV;
--- /dev/null
+/*
+ * Copyright (C) 2008 SuSE Linux Products GmbH
+ * Thomas Renninger <trenn@suse.de>
+ *
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ * video_detect.c:
+ * Provides acpi_is_video_device() for early scanning of ACPI devices in scan.c
+ * There a Linux specific (Spec does not provide a HID for video devices) is
+ * assinged
+ *
+ * After PCI devices are glued with ACPI devices
+ * acpi_get_physical_pci_device() can be called to identify ACPI graphics
+ * devices for which a real graphics card is plugged in
+ *
+ * Now acpi_video_get_capabilities() can be called to check which
+ * capabilities the graphics cards plugged in support. The check for general
+ * video capabilities will be triggered by the first caller of
+ * acpi_video_get_capabilities(NULL); which will happen when the first
+ * backlight (or display output) switching supporting driver calls:
+ * acpi_video_backlight_support();
+ *
+ * Depending on whether ACPI graphics extensions (cmp. ACPI spec Appendix B)
+ * are available, video.ko should be used to handle the device.
+ *
+ * Otherwise vendor specific drivers like thinkpad_acpi, asus_acpi,
+ * sony_acpi,... can take care about backlight brightness and display output
+ * switching.
+ *
+ * If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m)
+ * this file will not be compiled, acpi_video_get_capabilities() and
+ * acpi_video_backlight_support() will always return 0 and vendor specific
+ * drivers always can handle backlight.
+ *
+ */
+
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+
+ACPI_MODULE_NAME("video");
+#define _COMPONENT ACPI_VIDEO_COMPONENT
+
+static long acpi_video_support;
+static bool acpi_video_caps_checked;
+
+static acpi_status
+acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,
+ void **retyurn_value)
+{
+ long *cap = context;
+ acpi_handle h_dummy;
+
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_BCM", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(handle, "_BCL", &h_dummy))) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found generic backlight "
+ "support\n"));
+ *cap |= ACPI_VIDEO_BACKLIGHT;
+ /* We have backlight support, no need to scan further */
+ return AE_CTRL_TERMINATE;
+ }
+ return 0;
+}
+
+/* Returns true if the device is a video device which can be handled by
+ * video.ko.
+ * The device will get a Linux specific CID added in scan.c to
+ * identify the device as an ACPI graphics device
+ * Be aware that the graphics device may not be physically present
+ * Use acpi_video_get_capabilities() to detect general ACPI video
+ * capabilities of present cards
+ */
+long acpi_is_video_device(struct acpi_device *device)
+{
+ acpi_handle h_dummy;
+ long video_caps = 0;
+
+ if (!device)
+ return 0;
+
+ /* Does this device able to support video switching ? */
+ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy)))
+ video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING;
+
+ /* Does this device able to retrieve a video ROM ? */
+ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy)))
+ video_caps |= ACPI_VIDEO_ROM_AVAILABLE;
+
+ /* Does this device able to configure which video head to be POSTed ? */
+ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy)))
+ video_caps |= ACPI_VIDEO_DEVICE_POSTING;
+
+ /* Only check for backlight functionality if one of the above hit. */
+ if (video_caps)
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, device->handle,
+ ACPI_UINT32_MAX, acpi_backlight_cap_match,
+ &video_caps, NULL);
+
+ return video_caps;
+}
+EXPORT_SYMBOL(acpi_is_video_device);
+
+static acpi_status
+find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+ long *cap = context;
+ struct device *dev;
+ struct acpi_device *acpi_dev;
+
+ const struct acpi_device_id video_ids[] = {
+ {ACPI_VIDEO_HID, 0},
+ {"", 0},
+ };
+ if (acpi_bus_get_device(handle, &acpi_dev))
+ return AE_OK;
+
+ if (!acpi_match_device_ids(acpi_dev, video_ids)) {
+ dev = acpi_get_physical_pci_device(handle);
+ if (!dev)
+ return AE_OK;
+ put_device(dev);
+ *cap |= acpi_is_video_device(acpi_dev);
+ }
+ return AE_OK;
+}
+
+/*
+ * Returns the video capabilities of a specific ACPI graphics device
+ *
+ * if NULL is passed as argument all ACPI devices are enumerated and
+ * all graphics capabilities of physically present devices are
+ * summerized and returned. This is cached and done only once.
+ */
+long acpi_video_get_capabilities(acpi_handle graphics_handle)
+{
+ long caps = 0;
+ struct acpi_device *tmp_dev;
+ acpi_status status;
+
+ if (acpi_video_caps_checked && graphics_handle == NULL)
+ return acpi_video_support;
+
+ if (!graphics_handle) {
+ /* Only do the global walk through all graphics devices once */
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, find_video,
+ &caps, NULL);
+ /* There might be boot param flags set already... */
+ acpi_video_support |= caps;
+ acpi_video_caps_checked = 1;
+ /* Add blacklists here. Be careful to use the right *DMI* bits
+ * to still be able to override logic via boot params, e.g.:
+ *
+ * if (dmi_name_in_vendors("XY")) {
+ * acpi_video_support |=
+ * ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR;
+ * acpi_video_support |=
+ * ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+ *}
+ */
+ } else {
+ status = acpi_bus_get_device(graphics_handle, &tmp_dev);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Invalid device"));
+ return 0;
+ }
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, graphics_handle,
+ ACPI_UINT32_MAX, find_video,
+ &caps, NULL);
+ }
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "We have 0x%lX video support %s %s\n",
+ graphics_handle ? caps : acpi_video_support,
+ graphics_handle ? "on device " : "in general",
+ graphics_handle ? acpi_device_bid(tmp_dev) : ""));
+ return caps;
+}
+EXPORT_SYMBOL(acpi_video_get_capabilities);
+
+/* Returns true if video.ko can do backlight switching */
+int acpi_video_backlight_support(void)
+{
+ /*
+ * We must check whether the ACPI graphics device is physically plugged
+ * in. Therefore this must be called after binding PCI and ACPI devices
+ */
+ if (!acpi_video_caps_checked)
+ acpi_video_get_capabilities(NULL);
+
+ /* First check for boot param -> highest prio */
+ if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR)
+ return 0;
+ else if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO)
+ return 1;
+
+ /* Then check for DMI blacklist -> second highest prio */
+ if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_DMI_VENDOR)
+ return 0;
+ else if (acpi_video_support & ACPI_VIDEO_BACKLIGHT_DMI_VIDEO)
+ return 1;
+
+ /* Then go the default way */
+ return acpi_video_support & ACPI_VIDEO_BACKLIGHT;
+}
+EXPORT_SYMBOL(acpi_video_backlight_support);
+
+/*
+ * Returns true if video.ko can do display output switching.
+ * This does not work well/at all with binary graphics drivers
+ * which disable system io ranges and do it on their own.
+ */
+int acpi_video_display_switch_support(void)
+{
+ if (!acpi_video_caps_checked)
+ acpi_video_get_capabilities(NULL);
+
+ if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR)
+ return 0;
+ else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO)
+ return 1;
+
+ if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR)
+ return 0;
+ else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO)
+ return 1;
+
+ return acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING;
+}
+EXPORT_SYMBOL(acpi_video_display_switch_support);
+
+/*
+ * Use acpi_display_output=vendor/video or acpi_backlight=vendor/video
+ * To force that backlight or display output switching is processed by vendor
+ * specific acpi drivers or video.ko driver.
+ */
+int __init acpi_backlight(char *str)
+{
+ if (str == NULL || *str == '\0')
+ return 1;
+ else {
+ if (!strcmp("vendor", str))
+ acpi_video_support |=
+ ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR;
+ if (!strcmp("video", str))
+ acpi_video_support |=
+ ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO;
+ }
+ return 1;
+}
+__setup("acpi_backlight=", acpi_backlight);
+
+int __init acpi_display_output(char *str)
+{
+ if (str == NULL || *str == '\0')
+ return 1;
+ else {
+ if (!strcmp("vendor", str))
+ acpi_video_support |=
+ ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR;
+ if (!strcmp("video", str))
+ acpi_video_support |=
+ ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO;
+ }
+ return 1;
+}
+__setup("acpi_display_output=", acpi_display_output);
wblock->handler(event, wblock->handler_data);
acpi_bus_generate_netlink_event(
- device->pnp.device_class, device->dev.bus_id,
+ device->pnp.device_class, dev_name(&device->dev),
event, 0);
break;
}
else
tag = 0;
+ if (test_and_set_bit(tag, &ap->qc_allocated))
+ BUG();
qc = __ata_qc_from_tag(ap, tag);
qc->tag = tag;
/* Weird ATAPI devices */
{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 },
+ { "QUANTUM DAT DAT72-000", NULL, ATA_HORKAGE_ATAPI_MOD16_DMA },
/* Devices we expect to fail diagnostics */
/* Don't allow DMA if it isn't multiple of 16 bytes. Quite a
* few ATAPI devices choke on such DMA requests.
*/
- if (unlikely(qc->nbytes & 15))
+ if (!(qc->dev->horkage & ATA_HORKAGE_ATAPI_MOD16_DMA) &&
+ unlikely(qc->nbytes & 15))
return 1;
if (ap->ops->check_atapi_dma)
#endif /* __BIG_ENDIAN */
}
+/**
+ * ata_qc_new - Request an available ATA command, for queueing
+ * @ap: Port associated with device @dev
+ * @dev: Device from whom we request an available command structure
+ *
+ * LOCKING:
+ * None.
+ */
+
+static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap)
+{
+ struct ata_queued_cmd *qc = NULL;
+ unsigned int i;
+
+ /* no command while frozen */
+ if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
+ return NULL;
+
+ /* the last tag is reserved for internal command. */
+ for (i = 0; i < ATA_MAX_QUEUE - 1; i++)
+ if (!test_and_set_bit(i, &ap->qc_allocated)) {
+ qc = __ata_qc_from_tag(ap, i);
+ break;
+ }
+
+ if (qc)
+ qc->tag = i;
+
+ return qc;
+}
+
/**
* ata_qc_new_init - Request an available ATA command, and initialize it
* @dev: Device from whom we request an available command structure
* None.
*/
-struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag)
+struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev)
{
struct ata_port *ap = dev->link->ap;
struct ata_queued_cmd *qc;
- if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
- return NULL;
-
- qc = __ata_qc_from_tag(ap, tag);
+ qc = ata_qc_new(ap);
if (qc) {
qc->scsicmd = NULL;
qc->ap = ap;
qc->dev = dev;
- qc->tag = tag;
ata_qc_reinit(qc);
}
return qc;
}
+/**
+ * ata_qc_free - free unused ata_queued_cmd
+ * @qc: Command to complete
+ *
+ * Designed to free unused ata_queued_cmd object
+ * in case something prevents using it.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ */
+void ata_qc_free(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ unsigned int tag;
+
+ WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+
+ qc->flags = 0;
+ tag = qc->tag;
+ if (likely(ata_tag_valid(tag))) {
+ qc->tag = ATA_TAG_POISON;
+ clear_bit(tag, &ap->qc_allocated);
+ }
+}
+
void __ata_qc_complete(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
* to us. Restore SControl and disable all existing devices.
*/
__ata_port_for_each_link(link, ap) {
- sata_scr_write(link, SCR_CONTROL, link->saved_scontrol);
+ sata_scr_write(link, SCR_CONTROL, link->saved_scontrol & 0xff0);
ata_link_for_each_dev(dev, link)
ata_dev_disable(dev);
}
struct ata_port *ap;
struct ata_link *link;
struct ata_device *dev;
- unsigned long flags;
+ unsigned long flags, now;
unsigned int uninitialized_var(msecs);
int rc = 0;
}
link = dev->link;
+ now = jiffies;
if (ap->pflags & ATA_PFLAG_EH_IN_PROGRESS &&
link->eh_context.unloaded_mask & (1 << dev->devno) &&
- time_after(dev->unpark_deadline, jiffies))
- msecs = jiffies_to_msecs(dev->unpark_deadline - jiffies);
+ time_after(dev->unpark_deadline, now))
+ msecs = jiffies_to_msecs(dev->unpark_deadline - now);
else
msecs = 0;
{
struct ata_queued_cmd *qc;
- if (cmd->request->tag != -1)
- qc = ata_qc_new_init(dev, cmd->request->tag);
- else
- qc = ata_qc_new_init(dev, 0);
-
+ qc = ata_qc_new_init(dev);
if (qc) {
qc->scsicmd = cmd;
qc->scsidone = done;
depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id));
depth = min(ATA_MAX_QUEUE - 1, depth);
-
- /*
- * If this device is behind a port multiplier, we have
- * to share the tag map between all devices on that PMP.
- * Set up the shared tag map here and we get automatic.
- */
- if (dev->link->ap->pmp_link)
- scsi_init_shared_tag_map(sdev->host, ATA_MAX_QUEUE - 1);
-
- scsi_set_tag_type(sdev, MSG_SIMPLE_TAG);
- scsi_activate_tcq(sdev, depth);
+ scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth);
}
return 0;
hdr[1] |= (1 << 7);
memcpy(rbuf, hdr, sizeof(hdr));
-
- /* if ncq, set tags supported */
- if (ata_id_has_ncq(args->id))
- rbuf[7] |= (1 << 1);
-
memcpy(&rbuf[8], "ATA ", 8);
ata_id_string(args->id, &rbuf[16], ATA_ID_PROD, 16);
ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV, 4);
extern void ata_force_cbl(struct ata_port *ap);
extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf);
-extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag);
+extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
u64 block, u32 n_block, unsigned int tf_flags,
unsigned int tag);
extern int sata_down_spd_limit(struct ata_link *link);
extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
extern void ata_sg_clean(struct ata_queued_cmd *qc);
+extern void ata_qc_free(struct ata_queued_cmd *qc);
extern void ata_qc_issue(struct ata_queued_cmd *qc);
extern void __ata_qc_complete(struct ata_queued_cmd *qc);
extern int atapi_check_dma(struct ata_queued_cmd *qc);
extern void ata_dev_enable_pm(struct ata_device *dev, enum link_pm policy);
extern void ata_lpm_schedule(struct ata_port *ap, enum link_pm);
-/**
- * ata_qc_free - free unused ata_queued_cmd
- * @qc: Command to complete
- *
- * Designed to free unused ata_queued_cmd object
- * in case something prevents using it.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- */
-static inline void ata_qc_free(struct ata_queued_cmd *qc)
-{
- qc->flags = 0;
- qc->tag = ATA_TAG_POISON;
-}
-
/* libata-acpi.c */
#ifdef CONFIG_ATA_ACPI
extern void ata_acpi_associate_sata_port(struct ata_port *ap);
static void nv_nf2_freeze(struct ata_port *ap);
static void nv_nf2_thaw(struct ata_port *ap);
+static int nv_nf2_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
static void nv_ck804_freeze(struct ata_port *ap);
static void nv_ck804_thaw(struct ata_port *ap);
-static int nv_hardreset(struct ata_link *link, unsigned int *class,
- unsigned long deadline);
static int nv_adma_slave_config(struct scsi_device *sdev);
static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc);
static void nv_adma_qc_prep(struct ata_queued_cmd *qc);
.slave_configure = nv_swncq_slave_config,
};
-/* OSDL bz3352 reports that some nv controllers can't determine device
- * signature reliably and nv_hardreset is implemented to work around
- * the problem. This was reported on nf3 and it's unclear whether any
- * other controllers are affected. However, the workaround has been
- * applied to all variants and there isn't much to gain by trying to
- * find out exactly which ones are affected at this point especially
- * because NV has moved over to ahci for newer controllers.
- */
static struct ata_port_operations nv_common_ops = {
.inherits = &ata_bmdma_port_ops,
- .hardreset = nv_hardreset,
.scr_read = nv_scr_read,
.scr_write = nv_scr_write,
};
.hardreset = ATA_OP_NULL,
};
+/* OSDL bz3352 reports that nf2/3 controllers can't determine device
+ * signature reliably. Also, the following thread reports detection
+ * failure on cold boot with the standard debouncing timing.
+ *
+ * http://thread.gmane.org/gmane.linux.ide/34098
+ *
+ * Debounce with hotplug timing and request follow-up SRST.
+ */
static struct ata_port_operations nv_nf2_ops = {
.inherits = &nv_common_ops,
.freeze = nv_nf2_freeze,
.thaw = nv_nf2_thaw,
+ .hardreset = nv_nf2_hardreset,
};
+/* CK804 finally gets hardreset right */
static struct ata_port_operations nv_ck804_ops = {
.inherits = &nv_common_ops,
.freeze = nv_ck804_freeze,
};
static struct ata_port_operations nv_adma_ops = {
- .inherits = &nv_common_ops,
+ .inherits = &nv_ck804_ops,
.check_atapi_dma = nv_adma_check_atapi_dma,
.sff_tf_read = nv_adma_tf_read,
};
static struct ata_port_operations nv_swncq_ops = {
- .inherits = &nv_common_ops,
+ .inherits = &nv_generic_ops,
.qc_defer = ata_std_qc_defer,
.qc_prep = nv_swncq_qc_prep,
iowrite8(mask, scr_addr + NV_INT_ENABLE);
}
+static int nv_nf2_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline)
+{
+ bool online;
+ int rc;
+
+ rc = sata_link_hardreset(link, sata_deb_timing_hotplug, deadline,
+ &online, NULL);
+ return online ? -EAGAIN : rc;
+}
+
static void nv_ck804_freeze(struct ata_port *ap)
{
void __iomem *mmio_base = ap->host->iomap[NV_MMIO_BAR];
ata_sff_thaw(ap);
}
-static int nv_hardreset(struct ata_link *link, unsigned int *class,
- unsigned long deadline)
-{
- int rc;
-
- /* SATA hardreset fails to retrieve proper device signature on
- * some controllers. Request follow up SRST. For more info,
- * see http://bugzilla.kernel.org/show_bug.cgi?id=3352
- */
- rc = sata_sff_hardreset(link, class, deadline);
- if (rc)
- return rc;
- return -EAGAIN;
-}
-
static void nv_adma_error_handler(struct ata_port *ap)
{
struct nv_adma_port_priv *pp = ap->private_data;
static void pdc_sata_freeze(struct ata_port *ap);
static void pdc_thaw(struct ata_port *ap);
static void pdc_sata_thaw(struct ata_port *ap);
+static int pdc_pata_softreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
+static int pdc_sata_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
static void pdc_error_handler(struct ata_port *ap);
static void pdc_post_internal_cmd(struct ata_queued_cmd *qc);
static int pdc_pata_cable_detect(struct ata_port *ap);
.scr_read = pdc_sata_scr_read,
.scr_write = pdc_sata_scr_write,
.port_start = pdc_sata_port_start,
+ .hardreset = pdc_sata_hardreset,
};
/* First-generation chips need a more restrictive ->check_atapi_dma op */
.freeze = pdc_freeze,
.thaw = pdc_thaw,
.port_start = pdc_common_port_start,
+ .softreset = pdc_pata_softreset,
};
static const struct ata_port_info pdc_port_info[] = {
readl(host_mmio + hotplug_offset); /* flush */
}
+static int pdc_pata_softreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline)
+{
+ pdc_reset_port(link->ap);
+ return ata_sff_softreset(link, class, deadline);
+}
+
+static int pdc_sata_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline)
+{
+ pdc_reset_port(link->ap);
+ return sata_sff_hardreset(link, class, deadline);
+}
+
static void pdc_error_handler(struct ata_port *ap)
{
if (!(ap->pflags & ATA_PFLAG_FROZEN))
rc = vt8251_prepare_host(pdev, &host);
break;
default:
- return -EINVAL;
+ rc = -EINVAL;
}
+ if (rc)
+ return rc;
svia_configure(pdev);
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B},
{PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
{0,}
{0x3245103C, "Smart Array P410i", &SA5_access},
{0x3247103C, "Smart Array P411", &SA5_access},
{0x3249103C, "Smart Array P812", &SA5_access},
+ {0x324A103C, "Smart Array P712m", &SA5_access},
+ {0x324B103C, "Smart Array P711m", &SA5_access},
{0xFFFF103C, "Unknown Smart Array", &SA5_access},
};
disk->first_minor = drv_index << NWD_SHIFT;
disk->fops = &cciss_fops;
disk->private_data = &h->drv[drv_index];
+ disk->driverfs_dev = &h->pdev->dev;
/* Set up queue information */
blk_queue_bounce_limit(disk->queue, h->pdev->dma_mask);
int i;
int j = 0;
int rc;
- int dac;
+ int dac, return_code;
+ InquiryData_struct *inq_buff = NULL;
i = alloc_cciss_hba();
if (i < 0)
/* Turn the interrupts on so we can service requests */
hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON);
+ /* Get the firmware version */
+ inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
+ if (inq_buff == NULL) {
+ printk(KERN_ERR "cciss: out of memory\n");
+ goto clean4;
+ }
+
+ return_code = sendcmd_withirq(CISS_INQUIRY, i, inq_buff,
+ sizeof(InquiryData_struct), 0, 0 , 0, TYPE_CMD);
+ if (return_code == IO_OK) {
+ hba[i]->firm_ver[0] = inq_buff->data_byte[32];
+ hba[i]->firm_ver[1] = inq_buff->data_byte[33];
+ hba[i]->firm_ver[2] = inq_buff->data_byte[34];
+ hba[i]->firm_ver[3] = inq_buff->data_byte[35];
+ } else { /* send command failed */
+ printk(KERN_WARNING "cciss: unable to determine firmware"
+ " version of controller\n");
+ }
+
cciss_procinit(i);
hba[i]->cciss_max_sectors = 2048;
return 1;
clean4:
+ kfree(inq_buff);
#ifdef CONFIG_CISS_SCSI_TAPE
kfree(hba[i]->scsi_rejects.complete);
#endif
num_cntlrs_reg++;
}
- return(num_cntlrs_reg);
+ if (num_cntlrs_reg)
+ return 0;
+ else {
+ pci_unregister_driver(&cpqarray_pci_driver);
+ return -ENODEV;
+ }
}
/* Function to find the first free pointer into our hba[] array */
static int sonypi_ec_write(u8 addr, u8 value)
{
-#ifdef CONFIG_ACPI_EC
+#ifdef CONFIG_ACPI
if (SONYPI_ACPI_ACTIVE)
return ec_write(addr, value);
#endif
static int sonypi_ec_read(u8 addr, u8 *value)
{
-#ifdef CONFIG_ACPI_EC
+#ifdef CONFIG_ACPI
if (SONYPI_ACPI_ACTIVE)
return ec_read(addr, value);
#endif
vc->vc_tab_stop[1] =
vc->vc_tab_stop[2] =
vc->vc_tab_stop[3] =
- vc->vc_tab_stop[4] = 0x01010101;
+ vc->vc_tab_stop[4] =
+ vc->vc_tab_stop[5] =
+ vc->vc_tab_stop[6] =
+ vc->vc_tab_stop[7] = 0x01010101;
vc->vc_bell_pitch = DEFAULT_BELL_PITCH;
vc->vc_bell_duration = DEFAULT_BELL_DURATION;
vc->vc_tab_stop[1] =
vc->vc_tab_stop[2] =
vc->vc_tab_stop[3] =
- vc->vc_tab_stop[4] = 0;
+ vc->vc_tab_stop[4] =
+ vc->vc_tab_stop[5] =
+ vc->vc_tab_stop[6] =
+ vc->vc_tab_stop[7] = 0;
}
return;
case 'm':
return;
}
+#if 0
+ /* shows regressions, re-enable for 2.6.29 */
/*
* run any timers that can be run now, at this point
* before calculating the idle duration etc.
*/
hrtimer_peek_ahead_timers();
-
+#endif
/* ask the governor for the next state */
next_state = cpuidle_curr_governor->select(dev);
if (need_resched())
unit->device.bus = &fw_bus_type;
unit->device.type = &fw_unit_type;
unit->device.parent = &device->device;
- snprintf(unit->device.bus_id, sizeof(unit->device.bus_id),
- "%s.%d", device->device.bus_id, i++);
+ dev_set_name(&unit->device, "%s.%d", dev_name(&device->device), i++);
init_fw_attribute_group(&unit->device,
fw_unit_attributes,
device->device.type = &fw_device_type;
device->device.parent = device->card->device;
device->device.devt = MKDEV(fw_cdev_major, minor);
- snprintf(device->device.bus_id, sizeof(device->device.bus_id),
- "fw%d", minor);
+ dev_set_name(&device->device, "fw%d", minor);
init_fw_attribute_group(&device->device,
fw_device_attributes,
if (device->config_rom_retries)
fw_notify("created device %s: GUID %08x%08x, S%d00, "
"%d config ROM retries\n",
- device->device.bus_id,
+ dev_name(&device->device),
device->config_rom[3], device->config_rom[4],
1 << device->max_speed,
device->config_rom_retries);
else
fw_notify("created device %s: GUID %08x%08x, S%d00\n",
- device->device.bus_id,
+ dev_name(&device->device),
device->config_rom[3], device->config_rom[4],
1 << device->max_speed);
device->config_rom_retries = 0;
FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN)
goto gone;
- fw_notify("refreshed device %s\n", device->device.bus_id);
+ fw_notify("refreshed device %s\n", dev_name(&device->device));
device->config_rom_retries = 0;
goto out;
give_up:
- fw_notify("giving up on refresh of device %s\n", device->device.bus_id);
+ fw_notify("giving up on refresh of device %s\n", dev_name(&device->device));
gone:
atomic_set(&device->state, FW_DEVICE_SHUTDOWN);
fw_device_shutdown(work);
goto fail_self_id;
fw_notify("Added fw-ohci device %s, OHCI version %x.%x\n",
- dev->dev.bus_id, version >> 16, version & 0xff);
+ dev_name(&dev->dev), version >> 16, version & 0xff);
return 0;
fail_self_id:
tgt->unit = unit;
kref_init(&tgt->kref);
INIT_LIST_HEAD(&tgt->lu_list);
- tgt->bus_id = unit->device.bus_id;
+ tgt->bus_id = dev_name(&unit->device);
tgt->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
if (fw_device_enable_phys_dma(device) < 0)
const struct dmi_header *dm = (const struct dmi_header *)data;
/*
- * We want to know the total length (formated area and strings)
- * before decoding to make sure we won't run off the table in
- * dmi_decode or dmi_string
+ * We want to know the total length (formatted area and
+ * strings) before decoding to make sure we won't run off the
+ * table in dmi_decode or dmi_string
*/
data += dm->length;
while ((data - buf < len - 1) && (data[0] || data[1]))
/* Set 9: Macbook Pro 3,1 (Santa Rosa) */
{ "TALP", "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P",
"Th0H", "Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
+/* Set 10: iMac 5,1 */
+ { "TA0P", "TC0D", "TC0P", "TG0D", "TH0P", "TO0P", "Tm0P", NULL },
+/* Set 11: Macbook 5,1 */
+ { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0P", "TN0D", "TN0P",
+ "TTF0", "Th0H", "Th1H", "ThFH", "Ts0P", "Ts0S", NULL },
+/* Set 12: Macbook Pro 5,1 */
+ { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0F", "TC0P", "TG0D",
+ "TG0F", "TG0H", "TG0P", "TG0T", "TG1H", "TN0D", "TN0P", "TTF0",
+ "Th2H", "Tm0P", "Ts0P", "Ts0S", NULL },
+/* Set 13: iMac 8,1 */
+ { "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
+ "TL0P", "TO0P", "TW0P", "Tm0P", "Tp0P", NULL },
};
/* List of keys used to read/write fan speeds */
{ .accelerometer = 1, .light = 1, .temperature_set = 8 },
/* MacBook Pro 3: accelerometer, backlight and temperature set 9 */
{ .accelerometer = 1, .light = 1, .temperature_set = 9 },
+/* iMac 5: light sensor only, temperature set 10 */
+ { .accelerometer = 0, .light = 0, .temperature_set = 10 },
+/* MacBook 5: accelerometer, backlight and temperature set 11 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 11 },
+/* MacBook Pro 5: accelerometer, backlight and temperature set 12 */
+ { .accelerometer = 1, .light = 1, .temperature_set = 12 },
+/* iMac 8: light sensor only, temperature set 13 */
+ { .accelerometer = 0, .light = 0, .temperature_set = 13 },
};
/* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") },
&applesmc_dmi_data[7]},
+ { applesmc_dmi_match, "Apple MacBook Pro 5", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5") },
+ &applesmc_dmi_data[12]},
{ applesmc_dmi_match, "Apple MacBook Pro 4", {
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4") },
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") },
&applesmc_dmi_data[6]},
+ { applesmc_dmi_match, "Apple MacBook 5", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5") },
+ &applesmc_dmi_data[11]},
{ applesmc_dmi_match, "Apple MacBook", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") },
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") },
&applesmc_dmi_data[4]},
+ { applesmc_dmi_match, "Apple iMac 8", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") },
+ &applesmc_dmi_data[13]},
+ { applesmc_dmi_match, "Apple iMac 5", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac5") },
+ &applesmc_dmi_data[10]},
{ applesmc_dmi_match, "Apple iMac", {
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
DMI_MATCH(DMI_PRODUCT_NAME,"iMac") },
menu "Memory power savings"
+depends on X86_64
config I7300_IDLE_IOAT_CHANNEL
bool
config I7300_IDLE
tristate "Intel chipset idle memory power saving driver"
select I7300_IDLE_IOAT_CHANNEL
- depends on X86_64 && EXPERIMENTAL
+ depends on EXPERIMENTAL
help
Enable memory power savings when idle with certain Intel server
chipsets. The chipset must have I/O AT support, such as the
struct video_card *video = file_to_video_card(file);
int retval = -EINVAL;
- /* serialize mmap */
- mutex_lock(&video->mtx);
+ /*
+ * We cannot use the blocking variant mutex_lock here because .mmap
+ * is called with mmap_sem held, while .ioctl, .read, .write acquire
+ * video->mtx and subsequently call copy_to/from_user which will
+ * grab mmap_sem in case of a page fault.
+ */
+ if (!mutex_trylock(&video->mtx))
+ return -EAGAIN;
if ( ! video_card_initialized(video) ) {
retval = do_dv1394_init_default(video);
memcpy(&h->device, &nodemgr_dev_template_host, sizeof(h->device));
h->device.parent = dev;
set_dev_node(&h->device, dev_to_node(dev));
- snprintf(h->device.bus_id, BUS_ID_SIZE, "fw-host%d", h->id);
+ dev_set_name(&h->device, "fw-host%d", h->id);
h->host_dev.parent = &h->device;
h->host_dev.class = &hpsb_host_class;
- snprintf(h->host_dev.bus_id, BUS_ID_SIZE, "fw-host%d", h->id);
+ dev_set_name(&h->host_dev, "fw-host%d", h->id);
if (device_register(&h->device))
goto fail;
memcpy(&ne->device, &nodemgr_dev_template_ne,
sizeof(ne->device));
ne->device.parent = &host->device;
- snprintf(ne->device.bus_id, BUS_ID_SIZE, "%016Lx",
- (unsigned long long)(ne->guid));
+ dev_set_name(&ne->device, "%016Lx", (unsigned long long)(ne->guid));
ne->node_dev.parent = &ne->device;
ne->node_dev.class = &nodemgr_ne_class;
- snprintf(ne->node_dev.bus_id, BUS_ID_SIZE, "%016Lx",
- (unsigned long long)(ne->guid));
+ dev_set_name(&ne->node_dev, "%016Lx", (unsigned long long)(ne->guid));
if (device_register(&ne->device))
goto fail_devreg;
ud->device.parent = parent;
- snprintf(ud->device.bus_id, BUS_ID_SIZE, "%s-%u",
- ne->device.bus_id, ud->id);
+ dev_set_name(&ud->device, "%s-%u", dev_name(&ne->device), ud->id);
ud->unit_dev.parent = &ud->device;
ud->unit_dev.class = &nodemgr_ud_class;
- snprintf(ud->unit_dev.bus_id, BUS_ID_SIZE, "%s-%u",
- ne->device.bus_id, ud->id);
+ dev_set_name(&ud->unit_dev, "%s-%u", dev_name(&ne->device), ud->id);
if (device_register(&ud->device))
goto fail_devreg;
fail_classdevreg:
device_unregister(&ud->device);
fail_devreg:
- HPSB_ERR("Failed to create unit %s", ud->device.bus_id);
+ HPSB_ERR("Failed to create unit %s", dev_name(&ud->device));
}
return -EFAULT;
}
- mutex_lock(&fi->state_mutex);
+ if (!mutex_trylock(&fi->state_mutex))
+ return -EAGAIN;
switch (fi->state) {
case opened:
struct file_info *fi = file->private_data;
int ret;
- mutex_lock(&fi->state_mutex);
+ if (!mutex_trylock(&fi->state_mutex))
+ return -EAGAIN;
if (fi->iso_state == RAW1394_ISO_INACTIVE)
ret = -EINVAL;
break;
}
- mutex_lock(&fi->state_mutex);
+ if (!mutex_trylock(&fi->state_mutex))
+ return -EAGAIN;
switch (fi->iso_state) {
case RAW1394_ISO_INACTIVE:
min_sectors = conf->array_sectors;
sector_div(min_sectors, PAGE_SIZE/sizeof(struct dev_info *));
+ if (min_sectors == 0)
+ min_sectors = 1;
/* min_sectors is the minimum spacing that will fit the hash
* table in one PAGE. This may be much smaller than needed.
if (mode == 0) {
mdk_rdev_t *rdev;
struct list_head *tmp;
- struct block_device *bdev;
printk(KERN_INFO "md: %s stopped.\n", mdname(mddev));
mddev->degraded = 0;
mddev->barriers_work = 0;
mddev->safemode = 0;
- bdev = bdget_disk(mddev->gendisk, 0);
- if (bdev) {
- blkdev_ioctl(bdev, 0, BLKRRPART, 0);
- bdput(bdev);
- }
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
} else if (mddev->pers)
if (!enough(conf))
return -EINVAL;
- if (rdev->raid_disk)
+ if (rdev->raid_disk >= 0)
first = last = rdev->raid_disk;
if (rdev->saved_raid_disk >= 0 &&
* Fusion MPT LAN private structures
*/
-struct NAA_Hosed {
- u16 NAA;
- u8 ieee[FC_ALEN];
- struct NAA_Hosed *next;
-};
-
struct BufferControl {
struct sk_buff *skb;
dma_addr_t dma;
static u32 max_buckets_out = 127;
static u32 tx_max_out_p = 127 - 16;
-#ifdef QLOGIC_NAA_WORKAROUND
-static struct NAA_Hosed *mpt_bad_naa = NULL;
-DEFINE_RWLOCK(bad_naa_lock);
-#endif
-
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
* lan_reply - Handle all data sent from the hardware.
// ctx, skb, skb->data));
mac = skb_mac_header(skb);
-#ifdef QLOGIC_NAA_WORKAROUND
-{
- struct NAA_Hosed *nh;
-
- /* Munge the NAA for Tx packets to QLogic boards, which don't follow
- RFC 2625. The longer I look at this, the more my opinion of Qlogic
- drops. */
- read_lock_irq(&bad_naa_lock);
- for (nh = mpt_bad_naa; nh != NULL; nh=nh->next) {
- if ((nh->ieee[0] == mac[0]) &&
- (nh->ieee[1] == mac[1]) &&
- (nh->ieee[2] == mac[2]) &&
- (nh->ieee[3] == mac[3]) &&
- (nh->ieee[4] == mac[4]) &&
- (nh->ieee[5] == mac[5])) {
- cur_naa = nh->NAA;
- dlprintk ((KERN_INFO "mptlan/sdu_send: using NAA value "
- "= %04x.\n", cur_naa));
- break;
- }
- }
- read_unlock_irq(&bad_naa_lock);
-}
-#endif
pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) |
(mac[0] << 8) |
fcllc = (struct fcllc *)skb->data;
-#ifdef QLOGIC_NAA_WORKAROUND
-{
- u16 source_naa = fch->stype, found = 0;
-
- /* Workaround for QLogic not following RFC 2625 in regards to the NAA
- value. */
-
- if ((source_naa & 0xF000) == 0)
- source_naa = swab16(source_naa);
-
- if (fcllc->ethertype == htons(ETH_P_ARP))
- dlprintk ((KERN_INFO "mptlan/type_trans: got arp req/rep w/ naa of "
- "%04x.\n", source_naa));
-
- if ((fcllc->ethertype == htons(ETH_P_ARP)) &&
- ((source_naa >> 12) != MPT_LAN_NAA_RFC2625)){
- struct NAA_Hosed *nh, *prevnh;
- int i;
-
- dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep from "
- "system with non-RFC 2625 NAA value (%04x).\n",
- source_naa));
-
- write_lock_irq(&bad_naa_lock);
- for (prevnh = nh = mpt_bad_naa; nh != NULL;
- prevnh=nh, nh=nh->next) {
- if ((nh->ieee[0] == fch->saddr[0]) &&
- (nh->ieee[1] == fch->saddr[1]) &&
- (nh->ieee[2] == fch->saddr[2]) &&
- (nh->ieee[3] == fch->saddr[3]) &&
- (nh->ieee[4] == fch->saddr[4]) &&
- (nh->ieee[5] == fch->saddr[5])) {
- found = 1;
- dlprintk ((KERN_INFO "mptlan/type_trans: ARP Re"
- "q/Rep w/ bad NAA from system already"
- " in DB.\n"));
- break;
- }
- }
-
- if ((!found) && (nh == NULL)) {
-
- nh = kmalloc(sizeof(struct NAA_Hosed), GFP_KERNEL);
- dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep w/"
- " bad NAA from system not yet in DB.\n"));
-
- if (nh != NULL) {
- nh->next = NULL;
- if (!mpt_bad_naa)
- mpt_bad_naa = nh;
- if (prevnh)
- prevnh->next = nh;
-
- nh->NAA = source_naa; /* Set the S_NAA value. */
- for (i = 0; i < FC_ALEN; i++)
- nh->ieee[i] = fch->saddr[i];
- dlprintk ((KERN_INFO "Got ARP from %02x:%02x:%02x:%02x:"
- "%02x:%02x with non-compliant S_NAA value.\n",
- fch->saddr[0], fch->saddr[1], fch->saddr[2],
- fch->saddr[3], fch->saddr[4],fch->saddr[5]));
- } else {
- printk (KERN_ERR "mptlan/type_trans: Unable to"
- " kmalloc a NAA_Hosed struct.\n");
- }
- } else if (!found) {
- printk (KERN_ERR "mptlan/type_trans: found not"
- " set, but nh isn't null. Evil "
- "funkiness abounds.\n");
- }
- write_unlock_irq(&bad_naa_lock);
- }
-}
-#endif
/* Strip the SNAP header from ARP packets since we don't
* pass them through to the 802.2/SNAP layers.
config MSI_LAPTOP
tristate "MSI Laptop Extras"
depends on X86
- depends on ACPI_EC
+ depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
---help---
This is a driver for laptops built by MSI (MICRO-STAR
config COMPAL_LAPTOP
tristate "Compal Laptop Extras"
depends on X86
- depends on ACPI_EC
+ depends on ACPI
depends on BACKLIGHT_CLASS_DEVICE
---help---
This is a driver for laptops built by Compal:
set_quirks();
+ if (!acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
+ interface->capability &= ~ACER_CAP_BRIGHTNESS;
+ printk(ACER_INFO "Brightness must be controlled by "
+ "generic video driver\n");
+ }
+
if (platform_driver_register(&acer_platform_driver)) {
printk(ACER_ERR "Unable to register platform driver.\n");
goto error_platform_register;
dev = acpi_get_physical_device(hotk->device->handle);
- result = asus_backlight_init(dev);
- if (result)
- goto fail_backlight;
+ if (!acpi_video_backlight_support()) {
+ result = asus_backlight_init(dev);
+ if (result)
+ goto fail_backlight;
+ } else
+ printk(ASUS_INFO "Brightness ignored, must be controlled by "
+ "ACPI video driver\n");
result = asus_led_init(dev);
if (result)
/* Register backlight stuff */
- compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
- &compalbl_ops);
- if (IS_ERR(compalbl_device))
- return PTR_ERR(compalbl_device);
+ if (!acpi_video_backlight_support()) {
+ compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
+ &compalbl_ops);
+ if (IS_ERR(compalbl_device))
+ return PTR_ERR(compalbl_device);
- compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
+ compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
+ }
ret = platform_driver_register(&compal_driver);
if (ret)
return -ENODEV;
}
dev = acpi_get_physical_device(ehotk->device->handle);
- result = eeepc_backlight_init(dev);
- if (result)
- goto fail_backlight;
+
+ if (!acpi_video_backlight_support()) {
+ result = eeepc_backlight_init(dev);
+ if (result)
+ goto fail_backlight;
+ } else
+ printk(EEEPC_INFO "Backlight controlled by ACPI video "
+ "driver\n");
+
result = eeepc_hwmon_init(dev);
if (result)
goto fail_hwmon;
return 0;
}
+static int dmi_check_cb_s6420(const struct dmi_system_id *id)
+{
+ dmi_check_cb_common(id);
+ fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
+ fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
+ return 0;
+}
+
static int dmi_check_cb_p8010(const struct dmi_system_id *id)
{
dmi_check_cb_common(id);
return 0;
}
-static struct dmi_system_id __initdata fujitsu_dmi_table[] = {
+static struct dmi_system_id fujitsu_dmi_table[] = {
{
.ident = "Fujitsu Siemens S6410",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
},
.callback = dmi_check_cb_s6410},
+ {
+ .ident = "Fujitsu Siemens S6420",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
+ },
+ .callback = dmi_check_cb_s6420},
{
.ident = "Fujitsu LifeBook P8010",
.matches = {
/* Register backlight stuff */
- fujitsu->bl_device =
- backlight_device_register("fujitsu-laptop", NULL, NULL,
- &fujitsubl_ops);
- if (IS_ERR(fujitsu->bl_device))
- return PTR_ERR(fujitsu->bl_device);
-
- max_brightness = fujitsu->max_brightness;
-
- fujitsu->bl_device->props.max_brightness = max_brightness - 1;
- fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
+ if (!acpi_video_backlight_support()) {
+ fujitsu->bl_device =
+ backlight_device_register("fujitsu-laptop", NULL, NULL,
+ &fujitsubl_ops);
+ if (IS_ERR(fujitsu->bl_device))
+ return PTR_ERR(fujitsu->bl_device);
+ max_brightness = fujitsu->max_brightness;
+ fujitsu->bl_device->props.max_brightness = max_brightness - 1;
+ fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
+ }
ret = platform_driver_register(&fujitsupf_driver);
if (ret)
fail_backlight:
- backlight_device_unregister(fujitsu->bl_device);
+ if (fujitsu->bl_device)
+ backlight_device_unregister(fujitsu->bl_device);
fail_platform_device2:
&fujitsupf_attribute_group);
platform_device_unregister(fujitsu->pf_device);
platform_driver_unregister(&fujitsupf_driver);
- backlight_device_unregister(fujitsu->bl_device);
+ if (fujitsu->bl_device)
+ backlight_device_unregister(fujitsu->bl_device);
acpi_bus_unregister_driver(&acpi_fujitsu_driver);
#define MEMORY_ARG_CUR_BANDWIDTH 1
#define MEMORY_ARG_MAX_BANDWIDTH 0
+/*
+ * GTHS returning 'n' would mean that [0,n-1] states are supported
+ * In that case max_cstate would be n-1
+ * GTHS returning '0' would mean that no bandwidth control states are supported
+ */
static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
unsigned long *max_state)
{
if (ACPI_FAILURE(status))
return -EFAULT;
+ if (!value)
+ return -EINVAL;
+
*max_state = value - 1;
return 0;
}
if (memory_get_int_max_bandwidth(cdev, &max_state))
return -EFAULT;
- if (max_state < 0 || state > max_state)
+ if (state > max_state)
return -EINVAL;
arg_list.count = 1;
/* Register backlight stuff */
- msibl_device = backlight_device_register("msi-laptop-bl", NULL, NULL,
- &msibl_ops);
- if (IS_ERR(msibl_device))
- return PTR_ERR(msibl_device);
-
- msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
+ if (acpi_video_backlight_support()) {
+ printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
+ "by ACPI video driver\n");
+ } else {
+ msibl_device = backlight_device_register("msi-laptop-bl", NULL,
+ NULL, &msibl_ops);
+ if (IS_ERR(msibl_device))
+ return PTR_ERR(msibl_device);
+ msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
+ }
ret = platform_driver_register(&msipf_driver);
if (ret)
goto outinput;
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
+ if (!acpi_video_backlight_support()) {
+ printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be "
+ "controlled by ACPI video driver\n");
+ } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
+ &handle))) {
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
&sony_backlight_ops);
*/
b = tpacpi_check_std_acpi_brightness_support();
if (b > 0) {
- if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
- printk(TPACPI_NOTICE
- "Lenovo BIOS switched to ACPI backlight "
- "control mode\n");
- }
- if (brightness_enable > 1) {
- printk(TPACPI_NOTICE
- "standard ACPI backlight interface "
- "available, not loading native one...\n");
- return 1;
+
+ if (acpi_video_backlight_support()) {
+ if (brightness_enable > 1) {
+ printk(TPACPI_NOTICE
+ "Standard ACPI backlight interface "
+ "available, not loading native one.\n");
+ return 1;
+ } else if (brightness_enable == 1) {
+ printk(TPACPI_NOTICE
+ "Backlight control force enabled, even if standard "
+ "ACPI backlight interface is available\n");
+ }
+ } else {
+ if (brightness_enable > 1) {
+ printk(TPACPI_NOTICE
+ "Standard ACPI backlight interface not "
+ "available, thinkpad_acpi native "
+ "brightness control enabled\n");
+ }
}
}
int ret;
const char *type;
- snprintf(card->dev.bus_id, sizeof(card->dev.bus_id),
- "%s:%04x", mmc_hostname(card->host), card->rca);
+ dev_set_name(&card->dev, "%s:%04x", mmc_hostname(card->host), card->rca);
switch (card->type) {
case MMC_TYPE_MMC:
(card->host->ios.clock / 1000);
if (data->flags & MMC_DATA_WRITE)
- limit_us = 250000;
+ /*
+ * The limit is really 250 ms, but that is
+ * insufficient for some crappy cards.
+ */
+ limit_us = 300000;
else
limit_us = 100000;
if (err)
goto free;
- snprintf(host->class_dev.bus_id, BUS_ID_SIZE,
- "mmc%d", host->index);
+ dev_set_name(&host->class_dev, "mmc%d", host->index);
host->parent = dev;
host->class_dev.parent = dev;
WARN_ON((host->caps & MMC_CAP_SDIO_IRQ) &&
!host->ops->enable_sdio_irq);
- led_trigger_register_simple(host->class_dev.bus_id, &host->led);
+ led_trigger_register_simple(dev_name(&host->class_dev), &host->led);
err = device_add(&host->class_dev);
if (err)
{
int ret;
- snprintf(func->dev.bus_id, sizeof(func->dev.bus_id),
- "%s:%d", mmc_card_id(func->card), func->num);
+ dev_set_name(&func->dev, "%s:%d", mmc_card_id(func->card), func->num);
ret = device_add(&func->dev);
if (ret == 0)
goto fail_add_host;
dev_info(&spi->dev, "SD/MMC host %s%s%s%s%s\n",
- mmc->class_dev.bus_id,
+ dev_name(&mmc->class_dev),
host->dma_dev ? "" : ", no DMA",
(host->pdata && host->pdata->get_ro)
? "" : ", no WP",
mmc_add_host(mmc);
printk(KERN_INFO "%s: SDHCI controller on %s [%s] using %s%s\n",
- mmc_hostname(mmc), host->hw_name, mmc_dev(mmc)->bus_id,
+ mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)),
(host->flags & SDHCI_USE_ADMA)?"A":"",
(host->flags & SDHCI_USE_DMA)?"DMA":"PIO");
if (host->req) {
printk(KERN_ERR "%s : unfinished request detected\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
mrq->cmd->error = -ETIMEDOUT;
goto err_out;
}
? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE)) {
printk(KERN_ERR "%s : scatterlist map failed\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
mrq->cmd->error = -ENOMEM;
goto err_out;
}
: PCI_DMA_FROMDEVICE);
if (host->sg_len < 1) {
printk(KERN_ERR "%s : scatterlist map failed\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
tifm_unmap_sg(sock, &host->bounce_buf, 1,
r_data->flags & MMC_DATA_WRITE
? PCI_DMA_TODEVICE
if (!mrq) {
printk(KERN_ERR " %s : no request to complete?\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
spin_unlock_irqrestore(&sock->lock, flags);
return;
}
printk(KERN_ERR
"%s : card failed to respond for a long period of time "
"(%x, %x)\n",
- host->dev->dev.bus_id, host->req->cmd->opcode, host->cmd_flags);
+ dev_name(&host->dev->dev), host->req->cmd->opcode, host->cmd_flags);
tifm_eject(host->dev);
}
if (rc) {
printk(KERN_ERR "%s : controller failed to reset\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
return -ENODEV;
}
if (rc) {
printk(KERN_ERR
"%s : card not ready - probe failed on initialization\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
return -ENODEV;
}
if (!(TIFM_SOCK_STATE_OCCUPIED
& readl(sock->addr + SOCK_PRESENT_STATE))) {
printk(KERN_WARNING "%s : card gone, unexpectedly\n",
- sock->dev.bus_id);
+ dev_name(&sock->dev));
return rc;
}
/* Set the default CFI lock/unlock addresses */
cfi->addr_unlock1 = 0x555;
cfi->addr_unlock2 = 0x2aa;
- /* Modify the unlock address if we are in compatibility mode */
- if ( /* x16 in x8 mode */
- ((cfi->device_type == CFI_DEVICETYPE_X8) &&
- (cfi->cfiq->InterfaceDesc ==
- CFI_INTERFACE_X8_BY_X16_ASYNC)) ||
- /* x32 in x16 mode */
- ((cfi->device_type == CFI_DEVICETYPE_X16) &&
- (cfi->cfiq->InterfaceDesc ==
- CFI_INTERFACE_X16_BY_X32_ASYNC)))
- {
- cfi->addr_unlock1 = 0xaaa;
- cfi->addr_unlock2 = 0x555;
- }
} /* CFI mode */
else if (cfi->cfi_mode == CFI_MODE_JEDEC) {
* several first banks can contain 0x7f instead of actual ID
*/
do {
- uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8),
- cfi_interleave(cfi),
- cfi->device_type);
+ uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), map, cfi);
mask = (1 << (cfi->device_type * 8)) - 1;
result = map_read(map, base + ofs);
bank++;
{
map_word result;
unsigned long mask;
- u32 ofs = cfi_build_cmd_addr(1, cfi_interleave(cfi), cfi->device_type);
+ u32 ofs = cfi_build_cmd_addr(1, map, cfi);
mask = (1 << (cfi->device_type * 8)) -1;
result = map_read(map, base + ofs);
return result.x[0] & mask;
}
/* Ensure the unlock addresses we try stay inside the map */
- probe_offset1 = cfi_build_cmd_addr(cfi->addr_unlock1, cfi_interleave(cfi), cfi->device_type);
- probe_offset2 = cfi_build_cmd_addr(cfi->addr_unlock2, cfi_interleave(cfi), cfi->device_type);
+ probe_offset1 = cfi_build_cmd_addr(cfi->addr_unlock1, map, cfi);
+ probe_offset2 = cfi_build_cmd_addr(cfi->addr_unlock2, map, cfi);
if ( ((base + probe_offset1 + map_bankwidth(map)) >= map->size) ||
((base + probe_offset2 + map_bankwidth(map)) >= map->size))
goto retry;
#include <asm/arch/gpmc.h>
#include <asm/arch/onenand.h>
#include <asm/arch/gpio.h>
-#include <asm/arch/gpmc.h>
#include <asm/arch/pm.h>
#include <linux/dma-mapping.h>
If in doubt, say N.
config IGB_DCA
- bool "Enable DCA"
+ bool "Direct Cache Access (DCA) Support"
default y
depends on IGB && DCA && !(IGB=y && DCA=m)
+ ---help---
+ Say Y here if you want to use Direct Cache Access (DCA) in the
+ driver. DCA is a method for warming the CPU cache before data
+ is used, with the intent of lessening the impact of cache misses.
source "drivers/net/ixp2000/Kconfig"
will be called ixgbe.
config IXGBE_DCA
- bool
+ bool "Direct Cache Access (DCA) Support"
default y
depends on IXGBE && DCA && !(IXGBE=y && DCA=m)
+ ---help---
+ Say Y here if you want to use Direct Cache Access (DCA) in the
+ driver. DCA is a method for warming the CPU cache before data
+ is used, with the intent of lessening the impact of cache misses.
config IXGB
tristate "Intel(R) PRO/10GbE support"
will be called myri10ge.
config MYRI10GE_DCA
- bool
+ bool "Direct Cache Access (DCA) Support"
default y
depends on MYRI10GE && DCA && !(MYRI10GE=y && DCA=m)
+ ---help---
+ Say Y here if you want to use Direct Cache Access (DCA) in the
+ driver. DCA is a method for warming the CPU cache before data
+ is used, with the intent of lessening the impact of cache misses.
config NETXEN_NIC
tristate "NetXen Multi port (1/10) Gigabit Ethernet NIC"
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/tcp.h>
-#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/workqueue.h>
static void bnx2x_init_pxp(struct bnx2x *bp)
{
+ u16 devctl;
int r_order, w_order;
u32 val, i;
pci_read_config_word(bp->pdev,
- bp->pcie_cap + PCI_EXP_DEVCTL, (u16 *)&val);
- DP(NETIF_MSG_HW, "read 0x%x from devctl\n", (u16)val);
- w_order = ((val & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
- r_order = ((val & PCI_EXP_DEVCTL_READRQ) >> 12);
+ bp->pcie_cap + PCI_EXP_DEVCTL, &devctl);
+ DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl);
+ w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
+ r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12);
if (r_order > MAX_RD_ORD) {
DP(NETIF_MSG_HW, "read order of %d order adjusted to %d\n",
#include "bnx2x.h"
#include "bnx2x_init.h"
-#define DRV_MODULE_VERSION "1.45.22"
-#define DRV_MODULE_RELDATE "2008/09/09"
+#define DRV_MODULE_VERSION "1.45.23"
+#define DRV_MODULE_RELDATE "2008/11/03"
#define BNX2X_BC_VER 0x040200
/* Time in jiffies before concluding the transmitter is hung */
bnx2x_free_irq(bp);
load_error:
bnx2x_free_mem(bp);
+ bp->port.pmf = 0;
/* TBD we really need to reset the chip
if we want to recover from this */
/* Report UNLOAD_DONE to MCP */
if (!BP_NOMCP(bp))
bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE);
+ bp->port.pmf = 0;
/* Free SKBs, SGEs, TPA pool and driver internals */
bnx2x_free_skbs(bp);
return -ENOMEM;
}
- netif_carrier_off(dev);
-
bp = netdev_priv(dev);
bp->msglevel = debug;
goto init_one_exit;
}
+ netif_carrier_off(dev);
+
bp->common.name = board_info[ent->driver_data].name;
printk(KERN_INFO "%s: %s (%c%d) PCI-E x%d %s found at mem %lx,"
" IRQ %d, ", dev->name, bp->common.name,
ndev->stop = fs_enet_close;
ndev->get_stats = fs_enet_get_stats;
ndev->set_multicast_list = fs_set_multicast_list;
-
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ ndev->poll_controller = fs_enet_netpoll;
+#endif
if (fpi->use_napi)
netif_napi_add(ndev, &fep->napi, fs_enet_rx_napi,
fpi->napi_weight);
static void fs_enet_netpoll(struct net_device *dev)
{
disable_irq(dev->irq);
- fs_enet_interrupt(dev->irq, dev, NULL);
+ fs_enet_interrupt(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
return 0;
}
- if (!wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp),
- msecs_to_jiffies(100)))
- return -ETIMEDOUT;
+ if (!smi_is_done(msp)) {
+ wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp),
+ msecs_to_jiffies(100));
+ if (!smi_is_done(msp))
+ return -ETIMEDOUT;
+ }
return 0;
}
static int __devinit niu_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- unsigned long niureg_base, niureg_len;
union niu_parent_id parent_id;
struct net_device *dev;
struct niu *np;
dev->features |= (NETIF_F_SG | NETIF_F_HW_CSUM);
- niureg_base = pci_resource_start(pdev, 0);
- niureg_len = pci_resource_len(pdev, 0);
-
- np->regs = ioremap_nocache(niureg_base, niureg_len);
+ np->regs = pci_ioremap_bar(pdev, 0);
if (!np->regs) {
dev_err(&pdev->dev, PFX "Cannot map device registers, "
"aborting.\n");
#else
SMC_PUSH_DATA(lp, buf, len);
dev->trans_start = jiffies;
- dev_kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
#endif
if (!lp->tx_throttle) {
netif_wake_queue(dev);
struct net_device *ndev)
{
struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
+ struct smc_local *lp __maybe_unused = netdev_priv(ndev);
if (!res)
return 0;
struct net_device *ndev)
{
struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
+ struct smc_local *lp __maybe_unused = netdev_priv(ndev);
if (res)
release_mem_region(res->start, ATTRIB_SIZE);
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/types.h>
-#include <asm/uaccess.h>
#include "ucc_geth.h"
#include "ucc_geth_mii.h"
sc->opmode != NL80211_IFTYPE_MESH_POINT &&
test_bit(ATH_STAT_PROMISC, sc->status))
rfilt |= AR5K_RX_FILTER_PROM;
- if (sc->opmode == NL80211_IFTYPE_ADHOC)
+ if (sc->opmode == NL80211_IFTYPE_STATION ||
+ sc->opmode == NL80211_IFTYPE_ADHOC) {
rfilt |= AR5K_RX_FILTER_BEACON;
+ }
/* Set filters */
ath5k_hw_set_rx_filter(ah,rfilt);
AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL);
rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE);
- rs->rs_antenna = rx_status->rx_status_0 &
- AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA;
- rs->rs_more = rx_status->rx_status_0 &
- AR5K_5210_RX_DESC_STATUS0_MORE;
+ rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0,
+ AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA);
+ rs->rs_more = !!(rx_status->rx_status_0 &
+ AR5K_5210_RX_DESC_STATUS0_MORE);
/* TODO: this timestamp is 13 bit, later on we assume 15 bit */
rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL);
rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE);
- rs->rs_antenna = rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA;
- rs->rs_more = rx_status->rx_status_0 &
- AR5K_5212_RX_DESC_STATUS0_MORE;
+ rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0,
+ AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA);
+ rs->rs_more = !!(rx_status->rx_status_0 &
+ AR5K_5212_RX_DESC_STATUS0_MORE);
rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
rs->rs_status = 0;
return;
}
- iwl_scan_cancel_timeout(priv, 100);
+ if (iwl_scan_cancel(priv)) {
+ /* cancel scan failed, just live w/ bad key and rely
+ briefly on SW decryption */
+ return;
+ }
key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
return;
done:
+ /* Cannot perform scan. Make sure we clear scanning
+ * bits from status so next scan request can be performed.
+ * If we don't clear scanning status bit here all next scan
+ * will fail
+ */
+ clear_bit(STATUS_SCAN_HW, &priv->status);
+ clear_bit(STATUS_SCANNING, &priv->status);
/* inform mac80211 scan aborted */
queue_work(priv->workqueue, &priv->scan_completed);
mutex_unlock(&priv->mutex);
if (priv->error_recovering)
iwl3945_error_recovery(priv);
- ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
return;
restart:
mutex_lock(&priv->mutex);
iwl3945_alive_start(priv);
mutex_unlock(&priv->mutex);
+ ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
}
static void iwl3945_bg_rf_kill(struct work_struct *work)
n_probes,
(void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
+ if (scan->channel_count == 0) {
+ IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
+ goto done;
+ }
+
cmd.len += le16_to_cpu(scan->tx_cmd.len) +
scan->channel_count * sizeof(struct iwl3945_scan_channel);
cmd.data = scan;
return;
done:
+ /* can not perform scan make sure we clear scanning
+ * bits from status so next scan request can be performed.
+ * if we dont clear scanning status bit here all next scan
+ * will fail
+ */
+ clear_bit(STATUS_SCAN_HW, &priv->status);
+ clear_bit(STATUS_SCANNING, &priv->status);
+
/* inform mac80211 scan aborted */
queue_work(priv->workqueue, &priv->scan_completed);
mutex_unlock(&priv->mutex);
{ USB_DEVICE(0x0105, 0x145f), .driver_info = DEVICE_ZD1211 },
/* ZD1211B */
{ USB_DEVICE(0x0ace, 0x1215), .driver_info = DEVICE_ZD1211B },
+ { USB_DEVICE(0x0ace, 0xb215), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x157e, 0x300d), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x079b, 0x0062), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x1582, 0x6003), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x0cde, 0x001a), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x0586, 0x340a), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x0471, 0x1237), .driver_info = DEVICE_ZD1211B },
+ { USB_DEVICE(0x07fa, 0x1196), .driver_info = DEVICE_ZD1211B },
/* "Driverless" devices that need ejecting */
{ USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER },
{ USB_DEVICE(0x0ace, 0x20ff), .driver_info = DEVICE_INSTALLER },
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (test_and_set_bit(0, &buffer_opened))
+ if (test_and_set_bit_lock(0, &buffer_opened))
return -EBUSY;
/* Register as a user of dcookies
fail:
dcookie_unregister(file->private_data);
out:
- clear_bit(0, &buffer_opened);
+ __clear_bit_unlock(0, &buffer_opened);
return err;
}
dcookie_unregister(file->private_data);
buffer_pos = 0;
atomic_set(&buffer_ready, 0);
- clear_bit(0, &buffer_opened);
+ __clear_bit_unlock(0, &buffer_opened);
return 0;
}
nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
start = vma->vm_pgoff;
- size = pci_resource_len(pdev, resno) >> PAGE_SHIFT;
+ size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1;
if (start < size && size - start >= nr)
return 1;
WARN(1, "process \"%s\" tried to map 0x%08lx-0x%08lx on %s BAR %d (size 0x%08lx)\n",
}
}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
- PCI_DEVICE_ID_NX2_5706,
- quirk_brcm_570x_limit_vpd);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
- PCI_DEVICE_ID_NX2_5706S,
- quirk_brcm_570x_limit_vpd);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
- PCI_DEVICE_ID_NX2_5708,
- quirk_brcm_570x_limit_vpd);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
- PCI_DEVICE_ID_NX2_5708S,
- quirk_brcm_570x_limit_vpd);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
- PCI_DEVICE_ID_NX2_5709,
- quirk_brcm_570x_limit_vpd);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
- PCI_DEVICE_ID_NX2_5709S,
- quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
+ PCI_DEVICE_ID_NX2_5706,
+ quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
+ PCI_DEVICE_ID_NX2_5706S,
+ quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
+ PCI_DEVICE_ID_NX2_5708,
+ quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
+ PCI_DEVICE_ID_NX2_5708S,
+ quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
+ PCI_DEVICE_ID_NX2_5709,
+ quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
+ PCI_DEVICE_ID_NX2_5709S,
+ quirk_brcm_570x_limit_vpd);
#ifdef CONFIG_PCI_MSI
/* Some chipsets do not support MSI. We cannot easily rely on setting
* pci_map_rom - map a PCI ROM to kernel space
* @pdev: pointer to pci device struct
* @size: pointer to receive size of pci window over ROM
- * @return: kernel virtual pointer to image of ROM
+ *
+ * Return: kernel virtual pointer to image of ROM
*
* Map a PCI ROM into kernel space. If ROM is boot video ROM,
* the shadow BIOS copy will be returned instead of the
* pci_map_rom_copy - map a PCI ROM to kernel space, create a copy
* @pdev: pointer to pci device struct
* @size: pointer to receive size of pci window over ROM
- * @return: kernel virtual pointer to image of ROM
+ *
+ * Return: kernel virtual pointer to image of ROM
*
* Map a PCI ROM into kernel space. If ROM is boot video ROM,
* the shadow BIOS copy will be returned instead of the
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/types.h>
-#include <linux/pnp.h>
#include <linux/stat.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
+#include <asm/smp.h>
#include <asm/time.h>
#include <asm/ps3.h>
#include <asm/lv1call.h>
-menu "Voltage and Current regulators"
-
-config REGULATOR
+menuconfig REGULATOR
bool "Voltage and Current Regulator Support"
default n
help
If unsure, say no.
+if REGULATOR
+
config REGULATOR_DEBUG
bool "Regulator debug support"
- depends on REGULATOR
help
Say yes here to enable debugging support.
config REGULATOR_FIXED_VOLTAGE
tristate
default n
- select REGULATOR
config REGULATOR_VIRTUAL_CONSUMER
tristate "Virtual regulator consumer support"
default n
- select REGULATOR
help
This driver provides a virtual consumer for the voltage and
current regulator API which provides sysfs controls for
config REGULATOR_BQ24022
tristate "TI bq24022 Dual Input 1-Cell Li-Ion Charger IC"
default n
- select REGULATOR
help
This driver controls a TI bq24022 Charger attached via
GPIOs. The provided current regulator can enable/disable
config REGULATOR_WM8350
tristate "Wolfson Microelectroncis WM8350 AudioPlus PMIC"
depends on MFD_WM8350
- select REGULATOR
help
This driver provides support for the voltage and current regulators
of the WM8350 AudioPlus PMIC.
config REGULATOR_WM8400
tristate "Wolfson Microelectroncis WM8400 AudioPlus PMIC"
depends on MFD_WM8400
- select REGULATOR
help
This driver provides support for the voltage regulators of the
WM8400 AudioPlus PMIC.
config REGULATOR_DA903X
tristate "Support regulators on Dialog Semiconductor DA9030/DA9034 PMIC"
depends on PMIC_DA903X
- select REGULATOR
help
Say y here to support the BUCKs and LDOs regulators found on
Dialog Semiconductor DA9030/DA9034 PMIC.
-endmenu
+endif
dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year");
do {
alarm->time.tm_year++;
- } while (!rtc_valid_tm(&alarm->time));
+ } while (rtc_valid_tm(&alarm->time) != 0);
break;
default:
goto cleanup2;
}
- pr_info("%s: alarms up to one %s%s, %zd bytes nvram, %s irqs\n",
+ pr_info("%s: alarms up to one %s%s, %zd bytes nvram%s\n",
cmos_rtc.rtc->dev.bus_id,
is_valid_irq(rtc_irq)
? (cmos_rtc.mon_alrm
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/string.h>
-#include <linux/smp_lock.h>
#include <linux/genhd.h>
#include <linux/blkdev.h>
atmel_port->clk = clk_get(&pdev->dev, "usart");
clk_enable(atmel_port->clk);
port->uartclk = clk_get_rate(atmel_port->clk);
+ clk_disable(atmel_port->clk);
+ /* only enable clock when USART is in use */
}
atmel_port->use_dma_rx = data->use_dma_rx;
return -ENODEV;
}
+ clk_enable(atmel_ports[co->index].clk);
+
UART_PUT_IDR(port, -1);
UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN);
.data = &atmel_uart,
};
-#define ATMEL_CONSOLE_DEVICE &atmel_console
+#define ATMEL_CONSOLE_DEVICE (&atmel_console)
/*
* Early console initialization (before VM subsystem initialized).
if (ret)
goto err_add_port;
+ if (atmel_is_console_port(&port->uart)
+ && ATMEL_CONSOLE_DEVICE->flags & CON_ENABLED) {
+ /*
+ * The serial core enabled the clock for us, so undo
+ * the clk_enable() in atmel_console_setup()
+ */
+ clk_disable(port->clk);
+ }
+
device_init_wakeup(&pdev->dev, 1);
platform_set_drvdata(pdev, port);
port->rx_ring.buf = NULL;
err_alloc_ring:
if (!atmel_is_console_port(&port->uart)) {
- clk_disable(port->clk);
clk_put(port->clk);
port->clk = NULL;
}
/* "port" is allocated statically, so we shouldn't free it */
- clk_disable(atmel_port->clk);
clk_put(atmel_port->clk);
return ret;
If in doubt, say N here.
-if STAGING
+
+config STAGING_EXCLUDE_BUILD
+ bool "Exclude Staging drivers from being built" if STAGING
+ default y
+ ---help---
+ Are you sure you really want to build the staging drivers?
+ They taint your kernel, don't live up to the normal Linux
+ kernel quality standards, are a bit crufty around the edges,
+ and might go off and kick your dog when you aren't paying
+ attention.
+
+ Say N here to be able to select and build the Staging drivers.
+ This option is primarily here to prevent them from being built
+ when selecting 'make allyesconfg' and 'make allmodconfig' so
+ don't be all that put off, your dog will be just fine.
+
+if !STAGING_EXCLUDE_BUILD
source "drivers/staging/et131x/Kconfig"
source "drivers/staging/poch/Kconfig"
-endif # STAGING
+endif # !STAGING_EXCLUDE_BUILD
#include <linux/kernel.h> /* We're doing kernel work */
#include <linux/module.h>
-#include <linux/kernel.h>
#include <linux/slab.h>
#include "bit_operations.h"
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/system.h>
-#include <asm/uaccess.h>
/* Include-File for the Meilhaus ME-4000 I/O board */
#include "me4000.h"
config USB_IP_COMMON
tristate "USB IP support (EXPERIMENTAL)"
- depends on USB && EXPERIMENTAL
+ depends on USB && NET && EXPERIMENTAL
default N
---help---
This enables pushing USB packets over IP to allow remote
controller. The pre-release name for this device was 8track
and could also have been called by some vendors as PVI-nnnn.
+config FB_MB862XX
+ tristate "Fujitsu MB862xx GDC support"
+ depends on FB
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ ---help---
+ Frame buffer driver for Fujitsu Carmine/Coral-P(A)/Lime controllers.
+
+config FB_MB862XX_PCI_GDC
+ bool "Carmine/Coral-P(A) GDC"
+ depends on PCI && FB_MB862XX
+ ---help---
+ This enables framebuffer support for Fujitsu Carmine/Coral-P(A)
+ PCI graphics controller devices.
+
+config FB_MB862XX_LIME
+ bool "Lime GDC"
+ depends on FB_MB862XX
+ depends on OF && !FB_MB862XX_PCI_GDC
+ select FB_FOREIGN_ENDIAN
+ select FB_LITTLE_ENDIAN
+ ---help---
+ Framebuffer support for Fujitsu Lime GDC on host CPU bus.
+
+config FB_PRE_INIT_FB
+ bool "Don't reinitialize, use bootloader's GDC/Display configuration"
+ depends on FB_MB862XX_LIME
+ ---help---
+ Select this option if display contents should be inherited as set by
+ the bootloader.
+
source "drivers/video/omap/Kconfig"
source "drivers/video/backlight/Kconfig"
obj-$(CONFIG_FB_OMAP) += omap/
obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
obj-$(CONFIG_FB_CARMINE) += carminefb.o
+obj-$(CONFIG_FB_MB862XX) += mb862xx/
# Platform or fallback drivers go here
obj-$(CONFIG_FB_UVESA) += uvesafb.o
return ret;
}
-static long
-fb_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
+static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- int fbidx = iminor(inode);
- struct fb_info *info;
struct fb_ops *fb;
struct fb_var_screeninfo var;
struct fb_fix_screeninfo fix;
void __user *argp = (void __user *)arg;
long ret = 0;
- info = registered_fb[fbidx];
- mutex_lock(&info->lock);
fb = info->fbops;
-
- if (!fb) {
- mutex_unlock(&info->lock);
+ if (!fb)
return -ENODEV;
- }
+
switch (cmd) {
case FBIOGET_VSCREENINFO:
ret = copy_to_user(argp, &info->var,
else
ret = fb->fb_ioctl(info, cmd, arg);
}
+ return ret;
+}
+
+static long fb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+__acquires(&info->lock)
+__releases(&info->lock)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ int fbidx = iminor(inode);
+ struct fb_info *info;
+ long ret;
+
+ info = registered_fb[fbidx];
+ mutex_lock(&info->lock);
+ ret = do_fb_ioctl(info, cmd, arg);
mutex_unlock(&info->lock);
return ret;
}
compat_caddr_t transp;
};
-static int fb_getput_cmap(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int fb_getput_cmap(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
{
struct fb_cmap_user __user *cmap;
struct fb_cmap32 __user *cmap32;
put_user(compat_ptr(data), &cmap->transp))
return -EFAULT;
- err = fb_ioctl(file, cmd, (unsigned long) cmap);
+ err = do_fb_ioctl(info, cmd, (unsigned long) cmap);
if (!err) {
if (copy_in_user(&cmap32->start,
return err;
}
-static int fb_get_fscreeninfo(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int fb_get_fscreeninfo(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
{
mm_segment_t old_fs;
struct fb_fix_screeninfo fix;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = fb_ioctl(file, cmd, (unsigned long) &fix);
+ err = do_fb_ioctl(info, cmd, (unsigned long) &fix);
set_fs(old_fs);
if (!err)
return err;
}
-static long
-fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long fb_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+__acquires(&info->lock)
+__releases(&info->lock)
{
struct inode *inode = file->f_path.dentry->d_inode;
int fbidx = iminor(inode);
case FBIOPUT_CON2FBMAP:
arg = (unsigned long) compat_ptr(arg);
case FBIOBLANK:
- mutex_unlock(&info->lock);
- return fb_ioctl(file, cmd, arg);
+ ret = do_fb_ioctl(info, cmd, arg);
+ break;
case FBIOGET_FSCREENINFO:
- ret = fb_get_fscreeninfo(inode, file, cmd, arg);
+ ret = fb_get_fscreeninfo(info, cmd, arg);
break;
case FBIOGETCMAP:
case FBIOPUTCMAP:
- ret = fb_getput_cmap(inode, file, cmd, arg);
+ ret = fb_getput_cmap(info, cmd, arg);
break;
default:
static int
fb_mmap(struct file *file, struct vm_area_struct * vma)
+__acquires(&info->lock)
+__releases(&info->lock)
{
int fbidx = iminor(file->f_path.dentry->d_inode);
struct fb_info *info = registered_fb[fbidx];
static int
fb_open(struct inode *inode, struct file *file)
+__acquires(&info->lock)
+__releases(&info->lock)
{
int fbidx = iminor(inode);
struct fb_info *info;
static int
fb_release(struct inode *inode, struct file *file)
+__acquires(&info->lock)
+__releases(&info->lock)
{
struct fb_info * const info = file->private_data;
--- /dev/null
+#
+# Makefile for the MB862xx framebuffer driver
+#
+
+obj-$(CONFIG_FB_MB862XX) := mb862xxfb.o
--- /dev/null
+/*
+ * Fujitsu MB862xx Graphics Controller Registers/Bits
+ */
+
+#ifndef _MB862XX_REG_H
+#define _MB862XX_REG_H
+
+#ifdef MB862XX_MMIO_BOTTOM
+#define MB862XX_MMIO_BASE 0x03fc0000
+#else
+#define MB862XX_MMIO_BASE 0x01fc0000
+#endif
+#define MB862XX_I2C_BASE 0x0000c000
+#define MB862XX_DISP_BASE 0x00010000
+#define MB862XX_CAP_BASE 0x00018000
+#define MB862XX_DRAW_BASE 0x00030000
+#define MB862XX_GEO_BASE 0x00038000
+#define MB862XX_PIO_BASE 0x00038000
+#define MB862XX_MMIO_SIZE 0x40000
+
+/* Host interface/pio registers */
+#define GC_IST 0x00000020
+#define GC_IMASK 0x00000024
+#define GC_SRST 0x0000002c
+#define GC_CCF 0x00000038
+#define GC_CID 0x000000f0
+#define GC_REVISION 0x00000084
+
+#define GC_CCF_CGE_100 0x00000000
+#define GC_CCF_CGE_133 0x00040000
+#define GC_CCF_CGE_166 0x00080000
+#define GC_CCF_COT_100 0x00000000
+#define GC_CCF_COT_133 0x00010000
+#define GC_CID_CNAME_MSK 0x0000ff00
+#define GC_CID_VERSION_MSK 0x000000ff
+
+/* define enabled interrupts hereby */
+#define GC_INT_EN 0x00000000
+
+/* Memory interface mode register */
+#define GC_MMR 0x0000fffc
+
+/* Display Controller registers */
+#define GC_DCM0 0x00000000
+#define GC_HTP 0x00000004
+#define GC_HDB_HDP 0x00000008
+#define GC_VSW_HSW_HSP 0x0000000c
+#define GC_VTR 0x00000010
+#define GC_VDP_VSP 0x00000014
+#define GC_WY_WX 0x00000018
+#define GC_WH_WW 0x0000001c
+#define GC_L0M 0x00000020
+#define GC_L0OA0 0x00000024
+#define GC_L0DA0 0x00000028
+#define GC_L0DY_L0DX 0x0000002c
+#define GC_DCM1 0x00000100
+#define GC_L0EM 0x00000110
+#define GC_L0WY_L0WX 0x00000114
+#define GC_L0WH_L0WW 0x00000118
+#define GC_DCM2 0x00000104
+#define GC_DCM3 0x00000108
+#define GC_CPM_CUTC 0x000000a0
+#define GC_CUOA0 0x000000a4
+#define GC_CUY0_CUX0 0x000000a8
+#define GC_CUOA1 0x000000ac
+#define GC_CUY1_CUX1 0x000000b0
+#define GC_L0PAL0 0x00000400
+
+#define GC_CPM_CEN0 0x00100000
+#define GC_CPM_CEN1 0x00200000
+
+#define GC_DCM01_ESY 0x00000004
+#define GC_DCM01_SC 0x00003f00
+#define GC_DCM01_RESV 0x00004000
+#define GC_DCM01_CKS 0x00008000
+#define GC_DCM01_L0E 0x00010000
+#define GC_DCM01_DEN 0x80000000
+#define GC_L0M_L0C_8 0x00000000
+#define GC_L0M_L0C_16 0x80000000
+#define GC_L0EM_L0EC_24 0x40000000
+#define GC_L0M_L0W_UNIT 64
+
+#define GC_DISP_REFCLK_400 400
+
+/* Carmine specific */
+#define MB86297_DRAW_BASE 0x00020000
+#define MB86297_DISP0_BASE 0x00100000
+#define MB86297_DISP1_BASE 0x00140000
+#define MB86297_WRBACK_BASE 0x00180000
+#define MB86297_CAP0_BASE 0x00200000
+#define MB86297_CAP1_BASE 0x00280000
+#define MB86297_DRAMCTRL_BASE 0x00300000
+#define MB86297_CTRL_BASE 0x00400000
+#define MB86297_I2C_BASE 0x00500000
+
+#define GC_CTRL_STATUS 0x00000000
+#define GC_CTRL_INT_MASK 0x00000004
+#define GC_CTRL_CLK_ENABLE 0x0000000c
+#define GC_CTRL_SOFT_RST 0x00000010
+
+#define GC_CTRL_CLK_EN_DRAM 0x00000001
+#define GC_CTRL_CLK_EN_2D3D 0x00000002
+#define GC_CTRL_CLK_EN_DISP0 0x00000020
+#define GC_CTRL_CLK_EN_DISP1 0x00000040
+
+#define GC_2D3D_REV 0x000004b4
+#define GC_RE_REVISION 0x24240200
+
+/* define enabled interrupts hereby */
+#define GC_CARMINE_INT_EN 0x00000004
+
+/* DRAM controller */
+#define GC_DCTL_MODE_ADD 0x00000000
+#define GC_DCTL_SETTIME1_EMODE 0x00000004
+#define GC_DCTL_REFRESH_SETTIME2 0x00000008
+#define GC_DCTL_RSV0_STATES 0x0000000C
+#define GC_DCTL_RSV2_RSV1 0x00000010
+#define GC_DCTL_DDRIF2_DDRIF1 0x00000014
+#define GC_DCTL_IOCONT1_IOCONT0 0x00000024
+
+#define GC_DCTL_STATES_MSK 0x0000000f
+#define GC_DCTL_INIT_WAIT_CNT 3000
+#define GC_DCTL_INIT_WAIT_INTERVAL 1
+
+/* DRAM ctrl values for Carmine PCI Eval. board */
+#define GC_EVB_DCTL_MODE_ADD 0x012105c3
+#define GC_EVB_DCTL_MODE_ADD_AFT_RST 0x002105c3
+#define GC_EVB_DCTL_SETTIME1_EMODE 0x47498000
+#define GC_EVB_DCTL_REFRESH_SETTIME2 0x00422a22
+#define GC_EVB_DCTL_RSV0_STATES 0x00200003
+#define GC_EVB_DCTL_RSV0_STATES_AFT_RST 0x00200002
+#define GC_EVB_DCTL_RSV2_RSV1 0x0000000f
+#define GC_EVB_DCTL_DDRIF2_DDRIF1 0x00556646
+#define GC_EVB_DCTL_IOCONT1_IOCONT0 0x05550555
+
+#define GC_DISP_REFCLK_533 533
+
+#endif
--- /dev/null
+/*
+ * drivers/mb862xx/mb862xxfb.c
+ *
+ * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver
+ *
+ * (C) 2008 Anatolij Gustschin <agust@denx.de>
+ * DENX Software Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#undef DEBUG
+
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#if defined(CONFIG_PPC_OF)
+#include <linux/of_platform.h>
+#endif
+#include "mb862xxfb.h"
+#include "mb862xx_reg.h"
+
+#define NR_PALETTE 256
+#define MB862XX_MEM_SIZE 0x1000000
+#define CORALP_MEM_SIZE 0x4000000
+#define CARMINE_MEM_SIZE 0x8000000
+#define DRV_NAME "mb862xxfb"
+
+#if defined(CONFIG_LWMON5)
+static struct mb862xx_gc_mode lwmon5_gc_mode = {
+ /* Mode for Sharp LQ104V1DG61 TFT LCD Panel */
+ { "640x480", 60, 640, 480, 40000, 48, 16, 32, 11, 96, 2, 0, 0, 0 },
+ /* 16 bits/pixel, 32MB, 100MHz, SDRAM memory mode value */
+ 16, 0x2000000, GC_CCF_COT_100, 0x414fb7f2
+};
+#endif
+
+#if defined(CONFIG_SOCRATES)
+static struct mb862xx_gc_mode socrates_gc_mode = {
+ /* Mode for Prime View PM070WL4 TFT LCD Panel */
+ { "800x480", 45, 800, 480, 40000, 86, 42, 33, 10, 128, 2, 0, 0, 0 },
+ /* 16 bits/pixel, 16MB, 133MHz, SDRAM memory mode value */
+ 16, 0x1000000, GC_CCF_COT_133, 0x4157ba63
+};
+#endif
+
+/* Helpers */
+static inline int h_total(struct fb_var_screeninfo *var)
+{
+ return var->xres + var->left_margin +
+ var->right_margin + var->hsync_len;
+}
+
+static inline int v_total(struct fb_var_screeninfo *var)
+{
+ return var->yres + var->upper_margin +
+ var->lower_margin + var->vsync_len;
+}
+
+static inline int hsp(struct fb_var_screeninfo *var)
+{
+ return var->xres + var->right_margin - 1;
+}
+
+static inline int vsp(struct fb_var_screeninfo *var)
+{
+ return var->yres + var->lower_margin - 1;
+}
+
+static inline int d_pitch(struct fb_var_screeninfo *var)
+{
+ return var->xres * var->bits_per_pixel / 8;
+}
+
+static inline unsigned int chan_to_field(unsigned int chan,
+ struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int mb862xxfb_setcolreg(unsigned regno,
+ unsigned red, unsigned green, unsigned blue,
+ unsigned transp, struct fb_info *info)
+{
+ struct mb862xxfb_par *par = info->par;
+ unsigned int val;
+
+ switch (info->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ if (regno < 16) {
+ val = chan_to_field(red, &info->var.red);
+ val |= chan_to_field(green, &info->var.green);
+ val |= chan_to_field(blue, &info->var.blue);
+ par->pseudo_palette[regno] = val;
+ }
+ break;
+ case FB_VISUAL_PSEUDOCOLOR:
+ if (regno < 256) {
+ val = (red >> 8) << 16;
+ val |= (green >> 8) << 8;
+ val |= blue >> 8;
+ outreg(disp, GC_L0PAL0 + (regno * 4), val);
+ }
+ break;
+ default:
+ return 1; /* unsupported type */
+ }
+ return 0;
+}
+
+static int mb862xxfb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *fbi)
+{
+ unsigned long tmp;
+
+ if (fbi->dev)
+ dev_dbg(fbi->dev, "%s\n", __func__);
+
+ /* check if these values fit into the registers */
+ if (var->hsync_len > 255 || var->vsync_len > 255)
+ return -EINVAL;
+
+ if ((var->xres + var->right_margin) >= 4096)
+ return -EINVAL;
+
+ if ((var->yres + var->lower_margin) > 4096)
+ return -EINVAL;
+
+ if (h_total(var) > 4096 || v_total(var) > 4096)
+ return -EINVAL;
+
+ if (var->xres_virtual > 4096 || var->yres_virtual > 4096)
+ return -EINVAL;
+
+ if (var->bits_per_pixel <= 8)
+ var->bits_per_pixel = 8;
+ else if (var->bits_per_pixel <= 16)
+ var->bits_per_pixel = 16;
+ else if (var->bits_per_pixel <= 32)
+ var->bits_per_pixel = 32;
+
+ /*
+ * can cope with 8,16 or 24/32bpp if resulting
+ * pitch is divisible by 64 without remainder
+ */
+ if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT) {
+ int r;
+
+ var->bits_per_pixel = 0;
+ do {
+ var->bits_per_pixel += 8;
+ r = d_pitch(&fbi->var) % GC_L0M_L0W_UNIT;
+ } while (r && var->bits_per_pixel <= 32);
+
+ if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT)
+ return -EINVAL;
+ }
+
+ /* line length is going to be 128 bit aligned */
+ tmp = (var->xres * var->bits_per_pixel) / 8;
+ if ((tmp & 15) != 0)
+ return -EINVAL;
+
+ /* set r/g/b positions and validate bpp */
+ switch (var->bits_per_pixel) {
+ case 8:
+ var->red.length = var->bits_per_pixel;
+ var->green.length = var->bits_per_pixel;
+ var->blue.length = var->bits_per_pixel;
+ var->red.offset = 0;
+ var->green.offset = 0;
+ var->blue.offset = 0;
+ var->transp.length = 0;
+ break;
+ case 16:
+ var->red.length = 5;
+ var->green.length = 5;
+ var->blue.length = 5;
+ var->red.offset = 10;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->transp.length = 0;
+ break;
+ case 24:
+ case 32:
+ var->transp.length = 8;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.offset = 24;
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/*
+ * set display parameters
+ */
+static int mb862xxfb_set_par(struct fb_info *fbi)
+{
+ struct mb862xxfb_par *par = fbi->par;
+ unsigned long reg, sc;
+
+ dev_dbg(par->dev, "%s\n", __func__);
+
+ if (par->pre_init)
+ return 0;
+
+ /* disp off */
+ reg = inreg(disp, GC_DCM1);
+ reg &= ~GC_DCM01_DEN;
+ outreg(disp, GC_DCM1, reg);
+
+ /* set display reference clock div. */
+ sc = par->refclk / (1000000 / fbi->var.pixclock) - 1;
+ reg = inreg(disp, GC_DCM1);
+ reg &= ~(GC_DCM01_CKS | GC_DCM01_RESV | GC_DCM01_SC);
+ reg |= sc << 8;
+ outreg(disp, GC_DCM1, reg);
+ dev_dbg(par->dev, "SC 0x%lx\n", sc);
+
+ /* disp dimension, format */
+ reg = pack(d_pitch(&fbi->var) / GC_L0M_L0W_UNIT,
+ (fbi->var.yres - 1));
+ if (fbi->var.bits_per_pixel == 16)
+ reg |= GC_L0M_L0C_16;
+ outreg(disp, GC_L0M, reg);
+
+ if (fbi->var.bits_per_pixel == 32) {
+ reg = inreg(disp, GC_L0EM);
+ outreg(disp, GC_L0EM, reg | GC_L0EM_L0EC_24);
+ }
+ outreg(disp, GC_WY_WX, 0);
+ reg = pack(fbi->var.yres - 1, fbi->var.xres);
+ outreg(disp, GC_WH_WW, reg);
+ outreg(disp, GC_L0OA0, 0);
+ outreg(disp, GC_L0DA0, 0);
+ outreg(disp, GC_L0DY_L0DX, 0);
+ outreg(disp, GC_L0WY_L0WX, 0);
+ outreg(disp, GC_L0WH_L0WW, reg);
+
+ /* both HW-cursors off */
+ reg = inreg(disp, GC_CPM_CUTC);
+ reg &= ~(GC_CPM_CEN0 | GC_CPM_CEN1);
+ outreg(disp, GC_CPM_CUTC, reg);
+
+ /* timings */
+ reg = pack(fbi->var.xres - 1, fbi->var.xres - 1);
+ outreg(disp, GC_HDB_HDP, reg);
+ reg = pack((fbi->var.yres - 1), vsp(&fbi->var));
+ outreg(disp, GC_VDP_VSP, reg);
+ reg = ((fbi->var.vsync_len - 1) << 24) |
+ pack((fbi->var.hsync_len - 1), hsp(&fbi->var));
+ outreg(disp, GC_VSW_HSW_HSP, reg);
+ outreg(disp, GC_HTP, pack(h_total(&fbi->var) - 1, 0));
+ outreg(disp, GC_VTR, pack(v_total(&fbi->var) - 1, 0));
+
+ /* display on */
+ reg = inreg(disp, GC_DCM1);
+ reg |= GC_DCM01_DEN | GC_DCM01_L0E;
+ reg &= ~GC_DCM01_ESY;
+ outreg(disp, GC_DCM1, reg);
+ return 0;
+}
+
+static int mb862xxfb_pan(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct mb862xxfb_par *par = info->par;
+ unsigned long reg;
+
+ reg = pack(var->yoffset, var->xoffset);
+ outreg(disp, GC_L0WY_L0WX, reg);
+
+ reg = pack(var->yres_virtual, var->xres_virtual);
+ outreg(disp, GC_L0WH_L0WW, reg);
+ return 0;
+}
+
+static int mb862xxfb_blank(int mode, struct fb_info *fbi)
+{
+ struct mb862xxfb_par *par = fbi->par;
+ unsigned long reg;
+
+ dev_dbg(fbi->dev, "blank mode=%d\n", mode);
+
+ switch (mode) {
+ case FB_BLANK_POWERDOWN:
+ reg = inreg(disp, GC_DCM1);
+ reg &= ~GC_DCM01_DEN;
+ outreg(disp, GC_DCM1, reg);
+ break;
+ case FB_BLANK_UNBLANK:
+ reg = inreg(disp, GC_DCM1);
+ reg |= GC_DCM01_DEN;
+ outreg(disp, GC_DCM1, reg);
+ break;
+ case FB_BLANK_NORMAL:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ default:
+ return 1;
+ }
+ return 0;
+}
+
+/* framebuffer ops */
+static struct fb_ops mb862xxfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = mb862xxfb_check_var,
+ .fb_set_par = mb862xxfb_set_par,
+ .fb_setcolreg = mb862xxfb_setcolreg,
+ .fb_blank = mb862xxfb_blank,
+ .fb_pan_display = mb862xxfb_pan,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+/* initialize fb_info data */
+static int mb862xxfb_init_fbinfo(struct fb_info *fbi)
+{
+ struct mb862xxfb_par *par = fbi->par;
+ struct mb862xx_gc_mode *mode = par->gc_mode;
+ unsigned long reg;
+
+ fbi->fbops = &mb862xxfb_ops;
+ fbi->pseudo_palette = par->pseudo_palette;
+ fbi->screen_base = par->fb_base;
+ fbi->screen_size = par->mapped_vram;
+
+ strcpy(fbi->fix.id, DRV_NAME);
+ fbi->fix.smem_start = (unsigned long)par->fb_base_phys;
+ fbi->fix.smem_len = par->mapped_vram;
+ fbi->fix.mmio_start = (unsigned long)par->mmio_base_phys;
+ fbi->fix.mmio_len = par->mmio_len;
+ fbi->fix.accel = FB_ACCEL_NONE;
+ fbi->fix.type = FB_TYPE_PACKED_PIXELS;
+ fbi->fix.type_aux = 0;
+ fbi->fix.xpanstep = 1;
+ fbi->fix.ypanstep = 1;
+ fbi->fix.ywrapstep = 0;
+
+ reg = inreg(disp, GC_DCM1);
+ if (reg & GC_DCM01_DEN && reg & GC_DCM01_L0E) {
+ /* get the disp mode from active display cfg */
+ unsigned long sc = ((reg & GC_DCM01_SC) >> 8) + 1;
+ unsigned long hsp, vsp, ht, vt;
+
+ dev_dbg(par->dev, "using bootloader's disp. mode\n");
+ fbi->var.pixclock = (sc * 1000000) / par->refclk;
+ fbi->var.xres = (inreg(disp, GC_HDB_HDP) & 0x0fff) + 1;
+ reg = inreg(disp, GC_VDP_VSP);
+ fbi->var.yres = ((reg >> 16) & 0x0fff) + 1;
+ vsp = (reg & 0x0fff) + 1;
+ fbi->var.xres_virtual = fbi->var.xres;
+ fbi->var.yres_virtual = fbi->var.yres;
+ reg = inreg(disp, GC_L0EM);
+ if (reg & GC_L0EM_L0EC_24) {
+ fbi->var.bits_per_pixel = 32;
+ } else {
+ reg = inreg(disp, GC_L0M);
+ if (reg & GC_L0M_L0C_16)
+ fbi->var.bits_per_pixel = 16;
+ else
+ fbi->var.bits_per_pixel = 8;
+ }
+ reg = inreg(disp, GC_VSW_HSW_HSP);
+ fbi->var.hsync_len = ((reg & 0xff0000) >> 16) + 1;
+ fbi->var.vsync_len = ((reg & 0x3f000000) >> 24) + 1;
+ hsp = (reg & 0xffff) + 1;
+ ht = ((inreg(disp, GC_HTP) & 0xfff0000) >> 16) + 1;
+ fbi->var.right_margin = hsp - fbi->var.xres;
+ fbi->var.left_margin = ht - hsp - fbi->var.hsync_len;
+ vt = ((inreg(disp, GC_VTR) & 0xfff0000) >> 16) + 1;
+ fbi->var.lower_margin = vsp - fbi->var.yres;
+ fbi->var.upper_margin = vt - vsp - fbi->var.vsync_len;
+ } else if (mode) {
+ dev_dbg(par->dev, "using supplied mode\n");
+ fb_videomode_to_var(&fbi->var, (struct fb_videomode *)mode);
+ fbi->var.bits_per_pixel = mode->def_bpp ? mode->def_bpp : 8;
+ } else {
+ int ret;
+
+ ret = fb_find_mode(&fbi->var, fbi, "640x480-16@60",
+ NULL, 0, NULL, 16);
+ if (ret == 0 || ret == 4) {
+ dev_err(par->dev,
+ "failed to get initial mode\n");
+ return -EINVAL;
+ }
+ }
+
+ fbi->var.xoffset = 0;
+ fbi->var.yoffset = 0;
+ fbi->var.grayscale = 0;
+ fbi->var.nonstd = 0;
+ fbi->var.height = -1;
+ fbi->var.width = -1;
+ fbi->var.accel_flags = 0;
+ fbi->var.vmode = FB_VMODE_NONINTERLACED;
+ fbi->var.activate = FB_ACTIVATE_NOW;
+ fbi->flags = FBINFO_DEFAULT |
+#ifdef __BIG_ENDIAN
+ FBINFO_FOREIGN_ENDIAN |
+#endif
+ FBINFO_HWACCEL_XPAN |
+ FBINFO_HWACCEL_YPAN;
+
+ /* check and possibly fix bpp */
+ if ((fbi->fbops->fb_check_var)(&fbi->var, fbi))
+ dev_err(par->dev, "check_var() failed on initial setup?\n");
+
+ fbi->fix.visual = fbi->var.bits_per_pixel == 8 ?
+ FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
+ fbi->fix.line_length = (fbi->var.xres_virtual *
+ fbi->var.bits_per_pixel) / 8;
+ return 0;
+}
+
+/*
+ * show some display controller and cursor registers
+ */
+static ssize_t mb862xxfb_show_dispregs(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fb_info *fbi = dev_get_drvdata(dev);
+ struct mb862xxfb_par *par = fbi->par;
+ char *ptr = buf;
+ unsigned int reg;
+
+ for (reg = GC_DCM0; reg <= GC_L0DY_L0DX; reg += 4)
+ ptr += sprintf(ptr, "%08x = %08x\n",
+ reg, inreg(disp, reg));
+
+ for (reg = GC_CPM_CUTC; reg <= GC_CUY1_CUX1; reg += 4)
+ ptr += sprintf(ptr, "%08x = %08x\n",
+ reg, inreg(disp, reg));
+
+ for (reg = GC_DCM1; reg <= GC_L0WH_L0WW; reg += 4)
+ ptr += sprintf(ptr, "%08x = %08x\n",
+ reg, inreg(disp, reg));
+
+ return ptr - buf;
+}
+
+static DEVICE_ATTR(dispregs, 0444, mb862xxfb_show_dispregs, NULL);
+
+irqreturn_t mb862xx_intr(int irq, void *dev_id)
+{
+ struct mb862xxfb_par *par = (struct mb862xxfb_par *) dev_id;
+ unsigned long reg_ist, mask;
+
+ if (!par)
+ return IRQ_NONE;
+
+ if (par->type == BT_CARMINE) {
+ /* Get Interrupt Status */
+ reg_ist = inreg(ctrl, GC_CTRL_STATUS);
+ mask = inreg(ctrl, GC_CTRL_INT_MASK);
+ if (reg_ist == 0)
+ return IRQ_HANDLED;
+
+ reg_ist &= mask;
+ if (reg_ist == 0)
+ return IRQ_HANDLED;
+
+ /* Clear interrupt status */
+ outreg(ctrl, 0x0, reg_ist);
+ } else {
+ /* Get status */
+ reg_ist = inreg(host, GC_IST);
+ mask = inreg(host, GC_IMASK);
+
+ reg_ist &= mask;
+ if (reg_ist == 0)
+ return IRQ_HANDLED;
+
+ /* Clear status */
+ outreg(host, GC_IST, ~reg_ist);
+ }
+ return IRQ_HANDLED;
+}
+
+#if defined(CONFIG_FB_MB862XX_LIME)
+/*
+ * GDC (Lime, Coral(B/Q), Mint, ...) on host bus
+ */
+static int mb862xx_gdc_init(struct mb862xxfb_par *par)
+{
+ unsigned long ccf, mmr;
+ unsigned long ver, rev;
+
+ if (!par)
+ return -ENODEV;
+
+#if defined(CONFIG_FB_PRE_INIT_FB)
+ par->pre_init = 1;
+#endif
+ par->host = par->mmio_base;
+ par->i2c = par->mmio_base + MB862XX_I2C_BASE;
+ par->disp = par->mmio_base + MB862XX_DISP_BASE;
+ par->cap = par->mmio_base + MB862XX_CAP_BASE;
+ par->draw = par->mmio_base + MB862XX_DRAW_BASE;
+ par->geo = par->mmio_base + MB862XX_GEO_BASE;
+ par->pio = par->mmio_base + MB862XX_PIO_BASE;
+
+ par->refclk = GC_DISP_REFCLK_400;
+
+ ver = inreg(host, GC_CID);
+ rev = inreg(pio, GC_REVISION);
+ if ((ver == 0x303) && (rev & 0xffffff00) == 0x20050100) {
+ dev_info(par->dev, "Fujitsu Lime v1.%d found\n",
+ (int)rev & 0xff);
+ par->type = BT_LIME;
+ ccf = par->gc_mode ? par->gc_mode->ccf : GC_CCF_COT_100;
+ mmr = par->gc_mode ? par->gc_mode->mmr : 0x414fb7f2;
+ } else {
+ dev_info(par->dev, "? GDC, CID/Rev.: 0x%lx/0x%lx \n", ver, rev);
+ return -ENODEV;
+ }
+
+ if (!par->pre_init) {
+ outreg(host, GC_CCF, ccf);
+ udelay(200);
+ outreg(host, GC_MMR, mmr);
+ udelay(10);
+ }
+
+ /* interrupt status */
+ outreg(host, GC_IST, 0);
+ outreg(host, GC_IMASK, GC_INT_EN);
+ return 0;
+}
+
+static int __devinit of_platform_mb862xx_probe(struct of_device *ofdev,
+ const struct of_device_id *id)
+{
+ struct device_node *np = ofdev->node;
+ struct device *dev = &ofdev->dev;
+ struct mb862xxfb_par *par;
+ struct fb_info *info;
+ struct resource res;
+ resource_size_t res_size;
+ unsigned long ret = -ENODEV;
+
+ if (of_address_to_resource(np, 0, &res)) {
+ dev_err(dev, "Invalid address\n");
+ return -ENXIO;
+ }
+
+ info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev);
+ if (info == NULL) {
+ dev_err(dev, "cannot allocate framebuffer\n");
+ return -ENOMEM;
+ }
+
+ par = info->par;
+ par->info = info;
+ par->dev = dev;
+
+ par->irq = irq_of_parse_and_map(np, 0);
+ if (par->irq == NO_IRQ) {
+ dev_err(dev, "failed to map irq\n");
+ ret = -ENODEV;
+ goto fbrel;
+ }
+
+ res_size = 1 + res.end - res.start;
+ par->res = request_mem_region(res.start, res_size, DRV_NAME);
+ if (par->res == NULL) {
+ dev_err(dev, "Cannot claim framebuffer/mmio\n");
+ ret = -ENXIO;
+ goto irqdisp;
+ }
+
+#if defined(CONFIG_LWMON5)
+ par->gc_mode = &lwmon5_gc_mode;
+#endif
+
+#if defined(CONFIG_SOCRATES)
+ par->gc_mode = &socrates_gc_mode;
+#endif
+
+ par->fb_base_phys = res.start;
+ par->mmio_base_phys = res.start + MB862XX_MMIO_BASE;
+ par->mmio_len = MB862XX_MMIO_SIZE;
+ if (par->gc_mode)
+ par->mapped_vram = par->gc_mode->max_vram;
+ else
+ par->mapped_vram = MB862XX_MEM_SIZE;
+
+ par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
+ if (par->fb_base == NULL) {
+ dev_err(dev, "Cannot map framebuffer\n");
+ goto rel_reg;
+ }
+
+ par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len);
+ if (par->mmio_base == NULL) {
+ dev_err(dev, "Cannot map registers\n");
+ goto fb_unmap;
+ }
+
+ dev_dbg(dev, "fb phys 0x%llx 0x%lx\n",
+ (u64)par->fb_base_phys, (ulong)par->mapped_vram);
+ dev_dbg(dev, "mmio phys 0x%llx 0x%lx, (irq = %d)\n",
+ (u64)par->mmio_base_phys, (ulong)par->mmio_len, par->irq);
+
+ if (mb862xx_gdc_init(par))
+ goto io_unmap;
+
+ if (request_irq(par->irq, mb862xx_intr, IRQF_DISABLED,
+ DRV_NAME, (void *)par)) {
+ dev_err(dev, "Cannot request irq\n");
+ goto io_unmap;
+ }
+
+ mb862xxfb_init_fbinfo(info);
+
+ if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) {
+ dev_err(dev, "Could not allocate cmap for fb_info.\n");
+ goto free_irq;
+ }
+
+ if ((info->fbops->fb_set_par)(info))
+ dev_err(dev, "set_var() failed on initial setup?\n");
+
+ if (register_framebuffer(info)) {
+ dev_err(dev, "failed to register framebuffer\n");
+ goto rel_cmap;
+ }
+
+ dev_set_drvdata(dev, info);
+
+ if (device_create_file(dev, &dev_attr_dispregs))
+ dev_err(dev, "Can't create sysfs regdump file\n");
+ return 0;
+
+rel_cmap:
+ fb_dealloc_cmap(&info->cmap);
+free_irq:
+ outreg(host, GC_IMASK, 0);
+ free_irq(par->irq, (void *)par);
+io_unmap:
+ iounmap(par->mmio_base);
+fb_unmap:
+ iounmap(par->fb_base);
+rel_reg:
+ release_mem_region(res.start, res_size);
+irqdisp:
+ irq_dispose_mapping(par->irq);
+fbrel:
+ dev_set_drvdata(dev, NULL);
+ framebuffer_release(info);
+ return ret;
+}
+
+static int __devexit of_platform_mb862xx_remove(struct of_device *ofdev)
+{
+ struct fb_info *fbi = dev_get_drvdata(&ofdev->dev);
+ struct mb862xxfb_par *par = fbi->par;
+ resource_size_t res_size = 1 + par->res->end - par->res->start;
+ unsigned long reg;
+
+ dev_dbg(fbi->dev, "%s release\n", fbi->fix.id);
+
+ /* display off */
+ reg = inreg(disp, GC_DCM1);
+ reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E);
+ outreg(disp, GC_DCM1, reg);
+
+ /* disable interrupts */
+ outreg(host, GC_IMASK, 0);
+
+ free_irq(par->irq, (void *)par);
+ irq_dispose_mapping(par->irq);
+
+ device_remove_file(&ofdev->dev, &dev_attr_dispregs);
+
+ unregister_framebuffer(fbi);
+ fb_dealloc_cmap(&fbi->cmap);
+
+ iounmap(par->mmio_base);
+ iounmap(par->fb_base);
+
+ dev_set_drvdata(&ofdev->dev, NULL);
+ release_mem_region(par->res->start, res_size);
+ framebuffer_release(fbi);
+ return 0;
+}
+
+/*
+ * common types
+ */
+static struct of_device_id __devinitdata of_platform_mb862xx_tbl[] = {
+ { .compatible = "fujitsu,MB86276", },
+ { .compatible = "fujitsu,lime", },
+ { .compatible = "fujitsu,MB86277", },
+ { .compatible = "fujitsu,mint", },
+ { .compatible = "fujitsu,MB86293", },
+ { .compatible = "fujitsu,MB86294", },
+ { .compatible = "fujitsu,coral", },
+ { /* end */ }
+};
+
+static struct of_platform_driver of_platform_mb862xxfb_driver = {
+ .owner = THIS_MODULE,
+ .name = DRV_NAME,
+ .match_table = of_platform_mb862xx_tbl,
+ .probe = of_platform_mb862xx_probe,
+ .remove = __devexit_p(of_platform_mb862xx_remove),
+};
+#endif
+
+#if defined(CONFIG_FB_MB862XX_PCI_GDC)
+static int coralp_init(struct mb862xxfb_par *par)
+{
+ int cn, ver;
+
+ par->host = par->mmio_base;
+ par->i2c = par->mmio_base + MB862XX_I2C_BASE;
+ par->disp = par->mmio_base + MB862XX_DISP_BASE;
+ par->cap = par->mmio_base + MB862XX_CAP_BASE;
+ par->draw = par->mmio_base + MB862XX_DRAW_BASE;
+ par->geo = par->mmio_base + MB862XX_GEO_BASE;
+ par->pio = par->mmio_base + MB862XX_PIO_BASE;
+
+ par->refclk = GC_DISP_REFCLK_400;
+
+ ver = inreg(host, GC_CID);
+ cn = (ver & GC_CID_CNAME_MSK) >> 8;
+ ver = ver & GC_CID_VERSION_MSK;
+ if (cn == 3) {
+ dev_info(par->dev, "Fujitsu Coral-%s GDC Rev.%d found\n",\
+ (ver == 6) ? "P" : (ver == 8) ? "PA" : "?",
+ par->pdev->revision);
+ outreg(host, GC_CCF, GC_CCF_CGE_166 | GC_CCF_COT_133);
+ udelay(200);
+ outreg(host, GC_MMR, GC_MMR_CORALP_EVB_VAL);
+ udelay(10);
+ /* Clear interrupt status */
+ outreg(host, GC_IST, 0);
+ } else {
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static int init_dram_ctrl(struct mb862xxfb_par *par)
+{
+ unsigned long i = 0;
+
+ /*
+ * Set io mode first! Spec. says IC may be destroyed
+ * if not set to SSTL2/LVCMOS before init.
+ */
+ outreg(dram_ctrl, GC_DCTL_IOCONT1_IOCONT0, GC_EVB_DCTL_IOCONT1_IOCONT0);
+
+ /* DRAM init */
+ outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD);
+ outreg(dram_ctrl, GC_DCTL_SETTIME1_EMODE, GC_EVB_DCTL_SETTIME1_EMODE);
+ outreg(dram_ctrl, GC_DCTL_REFRESH_SETTIME2,
+ GC_EVB_DCTL_REFRESH_SETTIME2);
+ outreg(dram_ctrl, GC_DCTL_RSV2_RSV1, GC_EVB_DCTL_RSV2_RSV1);
+ outreg(dram_ctrl, GC_DCTL_DDRIF2_DDRIF1, GC_EVB_DCTL_DDRIF2_DDRIF1);
+ outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES);
+
+ /* DLL reset done? */
+ while ((inreg(dram_ctrl, GC_DCTL_RSV0_STATES) & GC_DCTL_STATES_MSK)) {
+ udelay(GC_DCTL_INIT_WAIT_INTERVAL);
+ if (i++ > GC_DCTL_INIT_WAIT_CNT) {
+ dev_err(par->dev, "VRAM init failed.\n");
+ return -EINVAL;
+ }
+ }
+ outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD_AFT_RST);
+ outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES_AFT_RST);
+ return 0;
+}
+
+static int carmine_init(struct mb862xxfb_par *par)
+{
+ unsigned long reg;
+
+ par->ctrl = par->mmio_base + MB86297_CTRL_BASE;
+ par->i2c = par->mmio_base + MB86297_I2C_BASE;
+ par->disp = par->mmio_base + MB86297_DISP0_BASE;
+ par->disp1 = par->mmio_base + MB86297_DISP1_BASE;
+ par->cap = par->mmio_base + MB86297_CAP0_BASE;
+ par->cap1 = par->mmio_base + MB86297_CAP1_BASE;
+ par->draw = par->mmio_base + MB86297_DRAW_BASE;
+ par->dram_ctrl = par->mmio_base + MB86297_DRAMCTRL_BASE;
+ par->wrback = par->mmio_base + MB86297_WRBACK_BASE;
+
+ par->refclk = GC_DISP_REFCLK_533;
+
+ /* warm up */
+ reg = GC_CTRL_CLK_EN_DRAM | GC_CTRL_CLK_EN_2D3D | GC_CTRL_CLK_EN_DISP0;
+ outreg(ctrl, GC_CTRL_CLK_ENABLE, reg);
+
+ /* check for engine module revision */
+ if (inreg(draw, GC_2D3D_REV) == GC_RE_REVISION)
+ dev_info(par->dev, "Fujitsu Carmine GDC Rev.%d found\n",
+ par->pdev->revision);
+ else
+ goto err_init;
+
+ reg &= ~GC_CTRL_CLK_EN_2D3D;
+ outreg(ctrl, GC_CTRL_CLK_ENABLE, reg);
+
+ /* set up vram */
+ if (init_dram_ctrl(par) < 0)
+ goto err_init;
+
+ outreg(ctrl, GC_CTRL_INT_MASK, 0);
+ return 0;
+
+err_init:
+ outreg(ctrl, GC_CTRL_CLK_ENABLE, 0);
+ return -EINVAL;
+}
+
+static inline int mb862xx_pci_gdc_init(struct mb862xxfb_par *par)
+{
+ switch (par->type) {
+ case BT_CORALP:
+ return coralp_init(par);
+ case BT_CARMINE:
+ return carmine_init(par);
+ default:
+ return -ENODEV;
+ }
+}
+
+#define CHIP_ID(id) \
+ { PCI_DEVICE(PCI_VENDOR_ID_FUJITSU_LIMITED, id) }
+
+static struct pci_device_id mb862xx_pci_tbl[] __devinitdata = {
+ /* MB86295/MB86296 */
+ CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALP),
+ CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALPA),
+ /* MB86297 */
+ CHIP_ID(PCI_DEVICE_ID_FUJITSU_CARMINE),
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mb862xx_pci_tbl);
+
+static int __devinit mb862xx_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct mb862xxfb_par *par;
+ struct fb_info *info;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ ret = pci_enable_device(pdev);
+ if (ret < 0) {
+ dev_err(dev, "Cannot enable PCI device\n");
+ goto out;
+ }
+
+ info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev);
+ if (!info) {
+ dev_err(dev, "framebuffer alloc failed\n");
+ ret = -ENOMEM;
+ goto dis_dev;
+ }
+
+ par = info->par;
+ par->info = info;
+ par->dev = dev;
+ par->pdev = pdev;
+ par->irq = pdev->irq;
+
+ ret = pci_request_regions(pdev, DRV_NAME);
+ if (ret < 0) {
+ dev_err(dev, "Cannot reserve region(s) for PCI device\n");
+ goto rel_fb;
+ }
+
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_FUJITSU_CORALP:
+ case PCI_DEVICE_ID_FUJITSU_CORALPA:
+ par->fb_base_phys = pci_resource_start(par->pdev, 0);
+ par->mapped_vram = CORALP_MEM_SIZE;
+ par->mmio_base_phys = par->fb_base_phys + MB862XX_MMIO_BASE;
+ par->mmio_len = MB862XX_MMIO_SIZE;
+ par->type = BT_CORALP;
+ break;
+ case PCI_DEVICE_ID_FUJITSU_CARMINE:
+ par->fb_base_phys = pci_resource_start(par->pdev, 2);
+ par->mmio_base_phys = pci_resource_start(par->pdev, 3);
+ par->mmio_len = pci_resource_len(par->pdev, 3);
+ par->mapped_vram = CARMINE_MEM_SIZE;
+ par->type = BT_CARMINE;
+ break;
+ default:
+ /* should never occur */
+ goto rel_reg;
+ }
+
+ par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
+ if (par->fb_base == NULL) {
+ dev_err(dev, "Cannot map framebuffer\n");
+ goto rel_reg;
+ }
+
+ par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len);
+ if (par->mmio_base == NULL) {
+ dev_err(dev, "Cannot map registers\n");
+ ret = -EIO;
+ goto fb_unmap;
+ }
+
+ dev_dbg(dev, "fb phys 0x%llx 0x%lx\n",
+ (u64)par->fb_base_phys, (ulong)par->mapped_vram);
+ dev_dbg(dev, "mmio phys 0x%llx 0x%lx\n",
+ (u64)par->mmio_base_phys, (ulong)par->mmio_len);
+
+ if (mb862xx_pci_gdc_init(par))
+ goto io_unmap;
+
+ if (request_irq(par->irq, mb862xx_intr, IRQF_DISABLED | IRQF_SHARED,
+ DRV_NAME, (void *)par)) {
+ dev_err(dev, "Cannot request irq\n");
+ goto io_unmap;
+ }
+
+ mb862xxfb_init_fbinfo(info);
+
+ if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) {
+ dev_err(dev, "Could not allocate cmap for fb_info.\n");
+ ret = -ENOMEM;
+ goto free_irq;
+ }
+
+ if ((info->fbops->fb_set_par)(info))
+ dev_err(dev, "set_var() failed on initial setup?\n");
+
+ ret = register_framebuffer(info);
+ if (ret < 0) {
+ dev_err(dev, "failed to register framebuffer\n");
+ goto rel_cmap;
+ }
+
+ pci_set_drvdata(pdev, info);
+
+ if (device_create_file(dev, &dev_attr_dispregs))
+ dev_err(dev, "Can't create sysfs regdump file\n");
+
+ if (par->type == BT_CARMINE)
+ outreg(ctrl, GC_CTRL_INT_MASK, GC_CARMINE_INT_EN);
+ else
+ outreg(host, GC_IMASK, GC_INT_EN);
+
+ return 0;
+
+rel_cmap:
+ fb_dealloc_cmap(&info->cmap);
+free_irq:
+ free_irq(par->irq, (void *)par);
+io_unmap:
+ iounmap(par->mmio_base);
+fb_unmap:
+ iounmap(par->fb_base);
+rel_reg:
+ pci_release_regions(pdev);
+rel_fb:
+ framebuffer_release(info);
+dis_dev:
+ pci_disable_device(pdev);
+out:
+ return ret;
+}
+
+static void __devexit mb862xx_pci_remove(struct pci_dev *pdev)
+{
+ struct fb_info *fbi = pci_get_drvdata(pdev);
+ struct mb862xxfb_par *par = fbi->par;
+ unsigned long reg;
+
+ dev_dbg(fbi->dev, "%s release\n", fbi->fix.id);
+
+ /* display off */
+ reg = inreg(disp, GC_DCM1);
+ reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E);
+ outreg(disp, GC_DCM1, reg);
+
+ if (par->type == BT_CARMINE) {
+ outreg(ctrl, GC_CTRL_INT_MASK, 0);
+ outreg(ctrl, GC_CTRL_CLK_ENABLE, 0);
+ } else {
+ outreg(host, GC_IMASK, 0);
+ }
+
+ device_remove_file(&pdev->dev, &dev_attr_dispregs);
+
+ pci_set_drvdata(pdev, NULL);
+ unregister_framebuffer(fbi);
+ fb_dealloc_cmap(&fbi->cmap);
+
+ free_irq(par->irq, (void *)par);
+ iounmap(par->mmio_base);
+ iounmap(par->fb_base);
+
+ pci_release_regions(pdev);
+ framebuffer_release(fbi);
+ pci_disable_device(pdev);
+}
+
+static struct pci_driver mb862xxfb_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = mb862xx_pci_tbl,
+ .probe = mb862xx_pci_probe,
+ .remove = __devexit_p(mb862xx_pci_remove),
+};
+#endif
+
+static int __devinit mb862xxfb_init(void)
+{
+ int ret = -ENODEV;
+
+#if defined(CONFIG_FB_MB862XX_LIME)
+ ret = of_register_platform_driver(&of_platform_mb862xxfb_driver);
+#endif
+#if defined(CONFIG_FB_MB862XX_PCI_GDC)
+ ret = pci_register_driver(&mb862xxfb_pci_driver);
+#endif
+ return ret;
+}
+
+static void __exit mb862xxfb_exit(void)
+{
+#if defined(CONFIG_FB_MB862XX_LIME)
+ of_unregister_platform_driver(&of_platform_mb862xxfb_driver);
+#endif
+#if defined(CONFIG_FB_MB862XX_PCI_GDC)
+ pci_unregister_driver(&mb862xxfb_pci_driver);
+#endif
+}
+
+module_init(mb862xxfb_init);
+module_exit(mb862xxfb_exit);
+
+MODULE_DESCRIPTION("Fujitsu MB862xx Framebuffer driver");
+MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+#ifndef __MB862XX_H__
+#define __MB862XX_H__
+
+#define PCI_VENDOR_ID_FUJITSU_LIMITED 0x10cf
+#define PCI_DEVICE_ID_FUJITSU_CORALP 0x2019
+#define PCI_DEVICE_ID_FUJITSU_CORALPA 0x201e
+#define PCI_DEVICE_ID_FUJITSU_CARMINE 0x202b
+
+#define GC_MMR_CORALP_EVB_VAL 0x11d7fa13
+
+enum gdctype {
+ BT_NONE,
+ BT_LIME,
+ BT_MINT,
+ BT_CORAL,
+ BT_CORALP,
+ BT_CARMINE,
+};
+
+struct mb862xx_gc_mode {
+ struct fb_videomode def_mode; /* mode of connected display */
+ unsigned int def_bpp; /* default depth */
+ unsigned long max_vram; /* connected SDRAM size */
+ unsigned long ccf; /* gdc clk */
+ unsigned long mmr; /* memory mode for SDRAM */
+};
+
+/* private data */
+struct mb862xxfb_par {
+ struct fb_info *info; /* fb info head */
+ struct device *dev;
+ struct pci_dev *pdev;
+ struct resource *res; /* framebuffer/mmio resource */
+
+ resource_size_t fb_base_phys; /* fb base, 36-bit PPC440EPx */
+ resource_size_t mmio_base_phys; /* io base addr */
+ void __iomem *fb_base; /* remapped framebuffer */
+ void __iomem *mmio_base; /* remapped registers */
+ size_t mapped_vram; /* length of remapped vram */
+ size_t mmio_len; /* length of register region */
+
+ void __iomem *host; /* relocatable reg. bases */
+ void __iomem *i2c;
+ void __iomem *disp;
+ void __iomem *disp1;
+ void __iomem *cap;
+ void __iomem *cap1;
+ void __iomem *draw;
+ void __iomem *geo;
+ void __iomem *pio;
+ void __iomem *ctrl;
+ void __iomem *dram_ctrl;
+ void __iomem *wrback;
+
+ unsigned int irq;
+ unsigned int type; /* GDC type */
+ unsigned int refclk; /* disp. reference clock */
+ struct mb862xx_gc_mode *gc_mode; /* GDC mode init data */
+ int pre_init; /* don't init display if 1 */
+
+ u32 pseudo_palette[16];
+};
+
+#if defined(CONFIG_FB_MB862XX_LIME) && defined(CONFIG_FB_MB862XX_PCI_GDC)
+#error "Select Lime GDC or CoralP/Carmine support, but not both together"
+#endif
+#if defined(CONFIG_FB_MB862XX_LIME)
+#define gdc_read __raw_readl
+#define gdc_write __raw_writel
+#else
+#define gdc_read readl
+#define gdc_write writel
+#endif
+
+#define inreg(type, off) \
+ gdc_read((par->type + (off)))
+
+#define outreg(type, off, val) \
+ gdc_write((val), (par->type + (off)))
+
+#define pack(a, b) (((a) << 16) | (b))
+
+#endif
system when the timeout is reached.
config AT91SAM9X_WATCHDOG
- tristate "AT91SAM9X watchdog"
- depends on WATCHDOG && (ARCH_AT91SAM9260 || ARCH_AT91SAM9261)
+ tristate "AT91SAM9X / AT91CAP9 watchdog"
+ depends on ARCH_AT91 && !ARCH_AT91RM9200
help
- Watchdog timer embedded into AT91SAM9X chips. This will reboot your
- system when the timeout is reached.
+ Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
+ reboot your system when the timeout is reached.
config 21285_WATCHDOG
tristate "DC21285 watchdog"
#include <linux/bitops.h>
#include <linux/uaccess.h>
-#include <asm/arch/at91_wdt.h>
+#include <mach/at91_wdt.h>
#define DRV_NAME "AT91SAM9 Watchdog"
#include <linux/pagemap.h>
#include <linux/highmem.h>
#include <linux/mutex.h>
-#include <linux/highmem.h>
#include <linux/list.h>
#include <linux/sysdev.h>
obj-$(CONFIG_CODA_FS) += coda/
obj-$(CONFIG_MINIX_FS) += minix/
obj-$(CONFIG_FAT_FS) += fat/
-obj-$(CONFIG_MSDOS_FS) += msdos/
-obj-$(CONFIG_VFAT_FS) += vfat/
obj-$(CONFIG_BFS_FS) += bfs/
obj-$(CONFIG_ISO9660_FS) += isofs/
obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
*/
static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param)
{
- int err = -EINVAL;
+ int err;
- if (check_dev_ioctl_version(cmd, param)) {
+ err = check_dev_ioctl_version(cmd, param);
+ if (err) {
AUTOFS_WARN("invalid device control module version "
"supplied for cmd(0x%08x)", cmd);
goto out;
mntget(mnt);
dget(dentry);
- if (!autofs4_follow_mount(&mnt, &dentry))
+ if (!follow_down(&mnt, &dentry))
goto done;
- /* This is an autofs submount, we can't expire it */
- if (is_autofs4_dentry(dentry))
- goto done;
+ if (is_autofs4_dentry(dentry)) {
+ struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+
+ /* This is an autofs submount, we can't expire it */
+ if (sbi->type == AUTOFS_TYPE_INDIRECT)
+ goto done;
+
+ /*
+ * Otherwise it's an offset mount and we need to check
+ * if we can umount its mount, if there is one.
+ */
+ if (!d_mountpoint(dentry))
+ goto done;
+ }
/* Update the expiry counter if fs is busy */
if (!may_umount_tree(mnt)) {
static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
{
struct gendisk *disk;
- struct hd_struct *part = NULL;
int ret;
int partno;
int perm = 0;
return ret;
}
- ret = -ENXIO;
-
lock_kernel();
+ ret = -ENXIO;
disk = get_gendisk(bdev->bd_dev, &partno);
if (!disk)
goto out_unlock_kernel;
- part = disk_get_part(disk, partno);
- if (!part)
- goto out_unlock_kernel;
mutex_lock_nested(&bdev->bd_mutex, for_part);
if (!bdev->bd_openers) {
bdev->bd_disk = disk;
- bdev->bd_part = part;
bdev->bd_contains = bdev;
if (!partno) {
struct backing_dev_info *bdi;
+
+ ret = -ENXIO;
+ bdev->bd_part = disk_get_part(disk, partno);
+ if (!bdev->bd_part)
+ goto out_clear;
+
if (disk->fops->open) {
ret = disk->fops->open(bdev, mode);
if (ret)
bdev->bd_contains = whole;
bdev->bd_inode->i_data.backing_dev_info =
whole->bd_inode->i_data.backing_dev_info;
+ bdev->bd_part = disk_get_part(disk, partno);
if (!(disk->flags & GENHD_FL_UP) ||
- !part || !part->nr_sects) {
+ !bdev->bd_part || !bdev->bd_part->nr_sects) {
ret = -ENXIO;
goto out_clear;
}
- bd_set_size(bdev, (loff_t)part->nr_sects << 9);
+ bd_set_size(bdev, (loff_t)bdev->bd_part->nr_sects << 9);
}
} else {
- disk_put_part(part);
put_disk(disk);
module_put(disk->fops->owner);
- part = NULL;
disk = NULL;
if (bdev->bd_contains == bdev) {
if (bdev->bd_disk->fops->open) {
return 0;
out_clear:
+ disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info;
out_unlock_kernel:
unlock_kernel();
- disk_put_part(part);
if (disk)
module_put(disk->fops->owner);
put_disk(disk);
(when delete of an open file fails we mark the file as "delete-on-close"
in a way that more servers accept, but only if we can first rename the
file to a temporary name). Add experimental support for more safely
-handling fcntl(F_SETLEASE).
+handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
+sends, and also let tcp autotune the socket send and receive buffers.
+This reduces the number of EAGAIN errors returned by TCP/IP in
+high stress workloads (and the number of retries on socket writes
+when sending large SMBWriteX requests).
Version 1.54
------------
char versionMajor;
char versionMinor;
bool svlocal:1; /* local server or remote */
+ bool noblocksnd; /* use blocking sendmsg */
+ bool noautotune; /* do not autotune send buf sizes */
atomic_t socketUseCount; /* number of open cifs sessions on socket */
atomic_t inFlight; /* number of requests on the wire to server */
#ifdef CONFIG_CIFS_STATS2
extern struct smb_hdr *cifs_small_buf_get(void);
extern void cifs_small_buf_release(void *);
extern int smb_send(struct socket *, struct smb_hdr *,
- unsigned int /* length */ , struct sockaddr *);
+ unsigned int /* length */ , struct sockaddr *, bool);
extern unsigned int _GetXid(void);
extern void _FreeXid(unsigned int);
#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__func__, xid,current->fsuid));
__u32 bytes_sent;
__u16 byte_count;
- /* cFYI(1,("write at %lld %d bytes",offset,count));*/
+ /* cFYI(1, ("write at %lld %d bytes", offset, count));*/
if (tcon->ses == NULL)
return -ECONNABORTED;
bool seal:1; /* request transport encryption on share */
bool nodfs:1; /* Do not request DFS, even if available */
bool local_lease:1; /* check leases only on local system, not remote */
+ bool noblocksnd:1;
+ bool noautotune:1;
unsigned int rsize;
unsigned int wsize;
unsigned int sockopt;
static int ipv4_connect(struct sockaddr_in *psin_server,
struct socket **csocket,
char *netb_name,
- char *server_netb_name);
+ char *server_netb_name,
+ bool noblocksnd,
+ bool nosndbuf); /* ipv6 never set sndbuf size */
static int ipv6_connect(struct sockaddr_in6 *psin_server,
- struct socket **csocket);
+ struct socket **csocket, bool noblocksnd);
/*
try_to_freeze();
if (server->protocolType == IPV6) {
rc = ipv6_connect(&server->addr.sockAddr6,
- &server->ssocket);
+ &server->ssocket, server->noautotune);
} else {
rc = ipv4_connect(&server->addr.sockAddr,
&server->ssocket,
server->workstation_RFC1001_name,
- server->server_RFC1001_name);
+ server->server_RFC1001_name,
+ server->noblocksnd, server->noautotune);
}
if (rc) {
cFYI(1, ("reconnect error %d", rc));
/* ignore */
} else if (strnicmp(data, "rw", 2) == 0) {
vol->rw = true;
+ } else if (strnicmp(data, "noblocksend", 11) == 0) {
+ vol->noblocksnd = 1;
+ } else if (strnicmp(data, "noautotune", 10) == 0) {
+ vol->noautotune = 1;
} else if ((strnicmp(data, "suid", 4) == 0) ||
(strnicmp(data, "nosuid", 6) == 0) ||
(strnicmp(data, "exec", 4) == 0) ||
static int
ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
- char *netbios_name, char *target_name)
+ char *netbios_name, char *target_name,
+ bool noblocksnd, bool noautotune)
{
int rc = 0;
int connected = 0;
(*csocket)->sk->sk_sndbuf,
(*csocket)->sk->sk_rcvbuf, (*csocket)->sk->sk_rcvtimeo));
(*csocket)->sk->sk_rcvtimeo = 7 * HZ;
+ if (!noblocksnd)
+ (*csocket)->sk->sk_sndtimeo = 3 * HZ;
+
/* make the bufsizes depend on wsize/rsize and max requests */
- if ((*csocket)->sk->sk_sndbuf < (200 * 1024))
- (*csocket)->sk->sk_sndbuf = 200 * 1024;
- if ((*csocket)->sk->sk_rcvbuf < (140 * 1024))
- (*csocket)->sk->sk_rcvbuf = 140 * 1024;
+ if (noautotune) {
+ if ((*csocket)->sk->sk_sndbuf < (200 * 1024))
+ (*csocket)->sk->sk_sndbuf = 200 * 1024;
+ if ((*csocket)->sk->sk_rcvbuf < (140 * 1024))
+ (*csocket)->sk->sk_rcvbuf = 140 * 1024;
+ }
/* send RFC1001 sessinit */
if (psin_server->sin_port == htons(RFC1001_PORT)) {
/* sizeof RFC1002_SESSION_REQUEST with no scope */
smb_buf->smb_buf_length = 0x81000044;
rc = smb_send(*csocket, smb_buf, 0x44,
- (struct sockaddr *)psin_server);
+ (struct sockaddr *)psin_server, noblocksnd);
kfree(ses_init_buf);
msleep(1); /* RFC1001 layer in at least one server
requires very short break before negprot
}
static int
-ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
+ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket,
+ bool noblocksnd)
{
int rc = 0;
int connected = 0;
the default. sock_setsockopt not used because it expects
user space buffer */
(*csocket)->sk->sk_rcvtimeo = 7 * HZ;
+ if (!noblocksnd)
+ (*csocket)->sk->sk_sndtimeo = 3 * HZ;
+
return rc;
}
cFYI(1, ("attempting ipv6 connect"));
/* BB should we allow ipv6 on port 139? */
/* other OS never observed in Wild doing 139 with v6 */
- rc = ipv6_connect(&sin_server6, &csocket);
+ rc = ipv6_connect(&sin_server6, &csocket,
+ volume_info.noblocksnd);
} else
rc = ipv4_connect(&sin_server, &csocket,
volume_info.source_rfc1001_name,
- volume_info.target_rfc1001_name);
+ volume_info.target_rfc1001_name,
+ volume_info.noblocksnd,
+ volume_info.noautotune);
if (rc < 0) {
cERROR(1, ("Error connecting to IPv4 socket. "
"Aborting operation"));
sock_release(csocket);
goto out;
} else {
+ srvTcp->noblocksnd = volume_info.noblocksnd;
+ srvTcp->noautotune = volume_info.noautotune;
memcpy(&srvTcp->addr.sockAddr, &sin_server,
sizeof(struct sockaddr_in));
atomic_set(&srvTcp->inFlight, 0);
pTcon = cifs_sb->tcon;
pagevec_init(&lru_pvec, 0);
- cFYI(DBG2, ("rpages: num pages %d", num_pages));
+ cFYI(DBG2, ("rpages: num pages %d", num_pages));
for (i = 0; i < num_pages; ) {
unsigned contig_pages;
struct page *tmp_page;
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (tmprc == 0 && (info_buf_source->UniqueId ==
- info_buf_target->UniqueId))
+ info_buf_target->UniqueId)) {
/* same file, POSIX says that this is a noop */
+ rc = 0;
goto cifs_rename_exit;
+ }
} /* else ... BB we could add the same check for Windows by
checking the UniqueId via FILE_INTERNAL_INFO */
int
smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer,
- unsigned int smb_buf_length, struct sockaddr *sin)
+ unsigned int smb_buf_length, struct sockaddr *sin, bool noblocksnd)
{
int rc = 0;
int i = 0;
smb_msg.msg_namelen = sizeof(struct sockaddr);
smb_msg.msg_control = NULL;
smb_msg.msg_controllen = 0;
- smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL; /* BB add more flags?*/
+ if (noblocksnd)
+ smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL;
+ else
+ smb_msg.msg_flags = MSG_NOSIGNAL;
/* smb header is converted in header_assemble. bcc and rest of SMB word
area, and byte area if necessary, is converted to littleendian in
}
static int
-smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,
- struct sockaddr *sin)
+smb_send2(struct TCP_Server_Info *server, struct kvec *iov, int n_vec,
+ struct sockaddr *sin, bool noblocksnd)
{
int rc = 0;
int i = 0;
unsigned int total_len;
int first_vec = 0;
unsigned int smb_buf_length = smb_buffer->smb_buf_length;
+ struct socket *ssocket = server->ssocket;
if (ssocket == NULL)
return -ENOTSOCK; /* BB eventually add reconnect code here */
smb_msg.msg_namelen = sizeof(struct sockaddr);
smb_msg.msg_control = NULL;
smb_msg.msg_controllen = 0;
- smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL; /* BB add more flags?*/
+ if (noblocksnd)
+ smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL;
+ else
+ smb_msg.msg_flags = MSG_NOSIGNAL;
/* smb header is converted in header_assemble. bcc and rest of SMB word
area, and byte area if necessary, is converted to littleendian in
if (rc < 0)
break;
- if (rc >= total_len) {
- WARN_ON(rc > total_len);
+ if (rc == total_len) {
+ total_len = 0;
+ break;
+ } else if (rc > total_len) {
+ cERROR(1, ("sent %d requested %d", rc, total_len));
break;
}
if (rc == 0) {
i = 0; /* in case we get ENOSPC on the next send */
}
+ if ((total_len > 0) && (total_len != smb_buf_length + 4)) {
+ cFYI(1, ("partial send (%d remaining), terminating session",
+ total_len));
+ /* If we have only sent part of an SMB then the next SMB
+ could be taken as the remainder of this one. We need
+ to kill the socket so the server throws away the partial
+ SMB */
+ server->tcpStatus = CifsNeedReconnect;
+ }
+
if (rc < 0) {
cERROR(1, ("Error %d sending data on socket to server", rc));
} else
#ifdef CONFIG_CIFS_STATS2
atomic_inc(&ses->server->inSend);
#endif
- rc = smb_send2(ses->server->ssocket, iov, n_vec,
- (struct sockaddr *) &(ses->server->addr.sockAddr));
+ rc = smb_send2(ses->server, iov, n_vec,
+ (struct sockaddr *) &(ses->server->addr.sockAddr),
+ ses->server->noblocksnd);
#ifdef CONFIG_CIFS_STATS2
atomic_dec(&ses->server->inSend);
midQ->when_sent = jiffies;
atomic_inc(&ses->server->inSend);
#endif
rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
- (struct sockaddr *) &(ses->server->addr.sockAddr));
+ (struct sockaddr *) &(ses->server->addr.sockAddr),
+ ses->server->noblocksnd);
#ifdef CONFIG_CIFS_STATS2
atomic_dec(&ses->server->inSend);
midQ->when_sent = jiffies;
return rc;
}
rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
- (struct sockaddr *) &(ses->server->addr.sockAddr));
+ (struct sockaddr *) &(ses->server->addr.sockAddr),
+ ses->server->noblocksnd);
up(&ses->server->tcpSem);
return rc;
}
atomic_inc(&ses->server->inSend);
#endif
rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
- (struct sockaddr *) &(ses->server->addr.sockAddr));
+ (struct sockaddr *) &(ses->server->addr.sockAddr),
+ ses->server->noblocksnd);
#ifdef CONFIG_CIFS_STATS2
atomic_dec(&ses->server->inSend);
midQ->when_sent = jiffies;
static int ext3_sync_fs(struct super_block *sb, int wait)
{
- tid_t target;
-
sb->s_dirt = 0;
- if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
- if (wait)
- log_wait_commit(EXT3_SB(sb)->s_journal, target);
- }
+ if (wait)
+ ext3_force_commit(sb);
+ else
+ journal_start_commit(EXT3_SB(sb)->s_journal, NULL);
+
return 0;
}
gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
free = ext4_free_blocks_after_init(sb, group, gdp);
gdp->bg_free_blocks_count = cpu_to_le16(free);
+ gdp->bg_checksum = ext4_group_desc_csum(sbi, group,
+ gdp);
}
spin_unlock(sb_bgl_lock(sbi, group));
unlock_page(page);
return 0;
}
+ /* now mark the buffer_heads as dirty and uptodate */
+ block_commit_write(page, 0, PAGE_CACHE_SIZE);
}
if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
static int ext4_index_trans_blocks(struct inode *inode, int nrblocks, int chunk)
{
if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
- return ext4_indirect_trans_blocks(inode, nrblocks, 0);
- return ext4_ext_index_trans_blocks(inode, nrblocks, 0);
+ return ext4_indirect_trans_blocks(inode, nrblocks, chunk);
+ return ext4_ext_index_trans_blocks(inode, nrblocks, chunk);
}
+
/*
* Account for index blocks, block groups bitmaps and block group
* descriptor blocks if modify datablocks and index blocks
else if (block >= (entry->start_blk + entry->count))
n = &(*n)->rb_right;
else {
+ ext4_unlock_group(sb, group);
ext4_error(sb, __func__,
"Double free of blocks %d (%d %d)\n",
block, entry->start_blk, entry->count);
/* We allocate both existing and potentially added groups */
flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) +
- ((sbi->s_es->s_reserved_gdt_blocks +1 ) <<
- EXT4_DESC_PER_BLOCK_BITS(sb))) /
- groups_per_flex;
+ ((le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) + 1) <<
+ EXT4_DESC_PER_BLOCK_BITS(sb))) / groups_per_flex;
sbi->s_flex_groups = kzalloc(flex_group_count *
sizeof(struct flex_groups), GFP_KERNEL);
if (sbi->s_flex_groups == NULL) {
/*
* Ext4 always journals updates to the superblock itself, so we don't
* have to propagate any other updates to the superblock on disk at this
- * point. Just start an async writeback to get the buffers on their way
- * to the disk.
- *
- * This implicitly triggers the writebehind on sync().
+ * point. (We can probably nuke this function altogether, and remove
+ * any mention to sb->s_dirt in all of fs/ext4; eventual cleanup...)
*/
-
static void ext4_write_super(struct super_block *sb)
{
if (mutex_trylock(&sb->s_lock) != 0)
static int ext4_sync_fs(struct super_block *sb, int wait)
{
- tid_t target;
+ int ret = 0;
trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
sb->s_dirt = 0;
- if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, &target)) {
- if (wait)
- jbd2_log_wait_commit(EXT4_SB(sb)->s_journal, target);
- }
- return 0;
+ if (wait)
+ ret = ext4_force_commit(sb);
+ else
+ jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
+ return ret;
}
/*
#
obj-$(CONFIG_FAT_FS) += fat.o
+obj-$(CONFIG_VFAT_FS) += vfat.o
+obj-$(CONFIG_MSDOS_FS) += msdos.o
-fat-objs := cache.o dir.o fatent.o file.o inode.o misc.o
+fat-y := cache.o dir.o fatent.o file.o inode.o misc.o
+vfat-y := namei_vfat.o
+msdos-y := namei_msdos.o
*/
#include <linux/fs.h>
-#include <linux/msdos_fs.h>
#include <linux/buffer_head.h>
+#include "fat.h"
/* this must be > 0. */
#define FAT_MAX_CACHE 8
}
int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
- unsigned long *mapped_blocks)
+ unsigned long *mapped_blocks, int create)
{
struct super_block *sb = inode->i_sb;
struct msdos_sb_info *sbi = MSDOS_SB(sb);
+ const unsigned long blocksize = sb->s_blocksize;
+ const unsigned char blocksize_bits = sb->s_blocksize_bits;
sector_t last_block;
int cluster, offset;
}
return 0;
}
- last_block = (MSDOS_I(inode)->mmu_private + (sb->s_blocksize - 1))
- >> sb->s_blocksize_bits;
- if (sector >= last_block)
- return 0;
+
+ last_block = (i_size_read(inode) + (blocksize - 1)) >> blocksize_bits;
+ if (sector >= last_block) {
+ if (!create)
+ return 0;
+
+ /*
+ * ->mmu_private can access on only allocation path.
+ * (caller must hold ->i_mutex)
+ */
+ last_block = (MSDOS_I(inode)->mmu_private + (blocksize - 1))
+ >> blocksize_bits;
+ if (sector >= last_block)
+ return 0;
+ }
cluster = sector >> (sbi->cluster_bits - sb->s_blocksize_bits);
offset = sector & (sbi->sec_per_clus - 1);
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/time.h>
-#include <linux/msdos_fs.h>
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/compat.h>
#include <asm/uaccess.h>
+#include "fat.h"
static inline loff_t fat_make_i_pos(struct super_block *sb,
struct buffer_head *bh,
*bh = NULL;
iblock = *pos >> sb->s_blocksize_bits;
- err = fat_bmap(dir, iblock, &phys, &mapped_blocks);
+ err = fat_bmap(dir, iblock, &phys, &mapped_blocks, 0);
if (err || !phys)
return -1; /* beyond EOF or error */
*bh = sb_bread(sb, phys);
if (*bh == NULL) {
printk(KERN_ERR "FAT: Directory bread(block %llu) failed\n",
- (unsigned long long)phys);
+ (llu)phys);
/* skip this block */
*pos = (iblock + 1) << sb->s_blocksize_bits;
goto next;
if (de->attr == ATTR_EXT) {
int status = fat_parse_long(inode, &cpos, &bh, &de,
&unicode, &nr_slots);
- if (status < 0)
- return status;
- else if (status == PARSE_INVALID)
+ if (status < 0) {
+ err = status;
+ goto end_of_dir;
+ } else if (status == PARSE_INVALID)
continue;
else if (status == PARSE_NOT_LONGNAME)
goto parse_record;
#endif /* CONFIG_COMPAT */
const struct file_operations fat_dir_operations = {
+ .llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = fat_readdir,
.ioctl = fat_dir_ioctl,
struct msdos_dir_entry *de;
sector_t blknr;
__le16 date, time;
+ u8 time_cs;
int err, cluster;
err = fat_alloc_clusters(dir, &cluster, 1);
goto error_free;
}
- fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc);
+ fat_time_unix2fat(sbi, ts, &time, &date, &time_cs);
de = (struct msdos_dir_entry *)bhs[0]->b_data;
/* filling the new directory slots ("." and ".." entries) */
de[0].lcase = de[1].lcase = 0;
de[0].time = de[1].time = time;
de[0].date = de[1].date = date;
- de[0].ctime_cs = de[1].ctime_cs = 0;
if (sbi->options.isvfat) {
/* extra timestamps */
de[0].ctime = de[1].ctime = time;
+ de[0].ctime_cs = de[1].ctime_cs = time_cs;
de[0].adate = de[0].cdate = de[1].adate = de[1].cdate = date;
} else {
de[0].ctime = de[1].ctime = 0;
+ de[0].ctime_cs = de[1].ctime_cs = 0;
de[0].adate = de[0].cdate = de[1].adate = de[1].cdate = 0;
}
de[0].start = cpu_to_le16(cluster);
--- /dev/null
+#ifndef _FAT_H
+#define _FAT_H
+
+#include <linux/buffer_head.h>
+#include <linux/string.h>
+#include <linux/nls.h>
+#include <linux/fs.h>
+#include <linux/mutex.h>
+#include <linux/msdos_fs.h>
+
+/*
+ * vfat shortname flags
+ */
+#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */
+#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */
+#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */
+#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */
+#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */
+
+struct fat_mount_options {
+ uid_t fs_uid;
+ gid_t fs_gid;
+ unsigned short fs_fmask;
+ unsigned short fs_dmask;
+ unsigned short codepage; /* Codepage for shortname conversions */
+ char *iocharset; /* Charset used for filename input/display */
+ unsigned short shortname; /* flags for shortname display/create rule */
+ unsigned char name_check; /* r = relaxed, n = normal, s = strict */
+ unsigned short allow_utime;/* permission for setting the [am]time */
+ unsigned quiet:1, /* set = fake successful chmods and chowns */
+ showexec:1, /* set = only set x bit for com/exe/bat */
+ sys_immutable:1, /* set = system files are immutable */
+ dotsOK:1, /* set = hidden and system files are named '.filename' */
+ isvfat:1, /* 0=no vfat long filename support, 1=vfat support */
+ utf8:1, /* Use of UTF-8 character set (Default) */
+ unicode_xlate:1, /* create escape sequences for unhandled Unicode */
+ numtail:1, /* Does first alias have a numeric '~1' type tail? */
+ flush:1, /* write things quickly */
+ nocase:1, /* Does this need case conversion? 0=need case conversion*/
+ usefree:1, /* Use free_clusters for FAT32 */
+ tz_utc:1, /* Filesystem timestamps are in UTC */
+ rodir:1; /* allow ATTR_RO for directory */
+};
+
+#define FAT_HASH_BITS 8
+#define FAT_HASH_SIZE (1UL << FAT_HASH_BITS)
+
+/*
+ * MS-DOS file system in-core superblock data
+ */
+struct msdos_sb_info {
+ unsigned short sec_per_clus; /* sectors/cluster */
+ unsigned short cluster_bits; /* log2(cluster_size) */
+ unsigned int cluster_size; /* cluster size */
+ unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */
+ unsigned short fat_start;
+ unsigned long fat_length; /* FAT start & length (sec.) */
+ unsigned long dir_start;
+ unsigned short dir_entries; /* root dir start & entries */
+ unsigned long data_start; /* first data sector */
+ unsigned long max_cluster; /* maximum cluster number */
+ unsigned long root_cluster; /* first cluster of the root directory */
+ unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */
+ struct mutex fat_lock;
+ unsigned int prev_free; /* previously allocated cluster number */
+ unsigned int free_clusters; /* -1 if undefined */
+ unsigned int free_clus_valid; /* is free_clusters valid? */
+ struct fat_mount_options options;
+ struct nls_table *nls_disk; /* Codepage used on disk */
+ struct nls_table *nls_io; /* Charset used for input and display */
+ const void *dir_ops; /* Opaque; default directory operations */
+ int dir_per_block; /* dir entries per block */
+ int dir_per_block_bits; /* log2(dir_per_block) */
+
+ int fatent_shift;
+ struct fatent_operations *fatent_ops;
+
+ spinlock_t inode_hash_lock;
+ struct hlist_head inode_hashtable[FAT_HASH_SIZE];
+};
+
+#define FAT_CACHE_VALID 0 /* special case for valid cache */
+
+/*
+ * MS-DOS file system inode data in memory
+ */
+struct msdos_inode_info {
+ spinlock_t cache_lru_lock;
+ struct list_head cache_lru;
+ int nr_caches;
+ /* for avoiding the race between fat_free() and fat_get_cluster() */
+ unsigned int cache_valid_id;
+
+ /* NOTE: mmu_private is 64bits, so must hold ->i_mutex to access */
+ loff_t mmu_private; /* physically allocated size */
+
+ int i_start; /* first cluster or 0 */
+ int i_logstart; /* logical first cluster */
+ int i_attrs; /* unused attribute bits */
+ loff_t i_pos; /* on-disk position of directory entry or 0 */
+ struct hlist_node i_fat_hash; /* hash by i_location */
+ struct inode vfs_inode;
+};
+
+struct fat_slot_info {
+ loff_t i_pos; /* on-disk position of directory entry */
+ loff_t slot_off; /* offset for slot or de start */
+ int nr_slots; /* number of slots + 1(de) in filename */
+ struct msdos_dir_entry *de;
+ struct buffer_head *bh;
+};
+
+static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+static inline struct msdos_inode_info *MSDOS_I(struct inode *inode)
+{
+ return container_of(inode, struct msdos_inode_info, vfs_inode);
+}
+
+/*
+ * If ->i_mode can't hold S_IWUGO (i.e. ATTR_RO), we use ->i_attrs to
+ * save ATTR_RO instead of ->i_mode.
+ *
+ * If it's directory and !sbi->options.rodir, ATTR_RO isn't read-only
+ * bit, it's just used as flag for app.
+ */
+static inline int fat_mode_can_hold_ro(struct inode *inode)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
+ mode_t mask;
+
+ if (S_ISDIR(inode->i_mode)) {
+ if (!sbi->options.rodir)
+ return 0;
+ mask = ~sbi->options.fs_dmask;
+ } else
+ mask = ~sbi->options.fs_fmask;
+
+ if (!(mask & S_IWUGO))
+ return 0;
+ return 1;
+}
+
+/* Convert attribute bits and a mask to the UNIX mode. */
+static inline mode_t fat_make_mode(struct msdos_sb_info *sbi,
+ u8 attrs, mode_t mode)
+{
+ if (attrs & ATTR_RO && !((attrs & ATTR_DIR) && !sbi->options.rodir))
+ mode &= ~S_IWUGO;
+
+ if (attrs & ATTR_DIR)
+ return (mode & ~sbi->options.fs_dmask) | S_IFDIR;
+ else
+ return (mode & ~sbi->options.fs_fmask) | S_IFREG;
+}
+
+/* Return the FAT attribute byte for this inode */
+static inline u8 fat_make_attrs(struct inode *inode)
+{
+ u8 attrs = MSDOS_I(inode)->i_attrs;
+ if (S_ISDIR(inode->i_mode))
+ attrs |= ATTR_DIR;
+ if (fat_mode_can_hold_ro(inode) && !(inode->i_mode & S_IWUGO))
+ attrs |= ATTR_RO;
+ return attrs;
+}
+
+static inline void fat_save_attrs(struct inode *inode, u8 attrs)
+{
+ if (fat_mode_can_hold_ro(inode))
+ MSDOS_I(inode)->i_attrs = attrs & ATTR_UNUSED;
+ else
+ MSDOS_I(inode)->i_attrs = attrs & (ATTR_UNUSED | ATTR_RO);
+}
+
+static inline unsigned char fat_checksum(const __u8 *name)
+{
+ unsigned char s = name[0];
+ s = (s<<7) + (s>>1) + name[1]; s = (s<<7) + (s>>1) + name[2];
+ s = (s<<7) + (s>>1) + name[3]; s = (s<<7) + (s>>1) + name[4];
+ s = (s<<7) + (s>>1) + name[5]; s = (s<<7) + (s>>1) + name[6];
+ s = (s<<7) + (s>>1) + name[7]; s = (s<<7) + (s>>1) + name[8];
+ s = (s<<7) + (s>>1) + name[9]; s = (s<<7) + (s>>1) + name[10];
+ return s;
+}
+
+static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus)
+{
+ return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus
+ + sbi->data_start;
+}
+
+static inline void fat16_towchar(wchar_t *dst, const __u8 *src, size_t len)
+{
+#ifdef __BIG_ENDIAN
+ while (len--) {
+ *dst++ = src[0] | (src[1] << 8);
+ src += 2;
+ }
+#else
+ memcpy(dst, src, len * 2);
+#endif
+}
+
+static inline void fatwchar_to16(__u8 *dst, const wchar_t *src, size_t len)
+{
+#ifdef __BIG_ENDIAN
+ while (len--) {
+ dst[0] = *src & 0x00FF;
+ dst[1] = (*src & 0xFF00) >> 8;
+ dst += 2;
+ src++;
+ }
+#else
+ memcpy(dst, src, len * 2);
+#endif
+}
+
+/* fat/cache.c */
+extern void fat_cache_inval_inode(struct inode *inode);
+extern int fat_get_cluster(struct inode *inode, int cluster,
+ int *fclus, int *dclus);
+extern int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
+ unsigned long *mapped_blocks, int create);
+
+/* fat/dir.c */
+extern const struct file_operations fat_dir_operations;
+extern int fat_search_long(struct inode *inode, const unsigned char *name,
+ int name_len, struct fat_slot_info *sinfo);
+extern int fat_dir_empty(struct inode *dir);
+extern int fat_subdirs(struct inode *dir);
+extern int fat_scan(struct inode *dir, const unsigned char *name,
+ struct fat_slot_info *sinfo);
+extern int fat_get_dotdot_entry(struct inode *dir, struct buffer_head **bh,
+ struct msdos_dir_entry **de, loff_t *i_pos);
+extern int fat_alloc_new_dir(struct inode *dir, struct timespec *ts);
+extern int fat_add_entries(struct inode *dir, void *slots, int nr_slots,
+ struct fat_slot_info *sinfo);
+extern int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo);
+
+/* fat/fatent.c */
+struct fat_entry {
+ int entry;
+ union {
+ u8 *ent12_p[2];
+ __le16 *ent16_p;
+ __le32 *ent32_p;
+ } u;
+ int nr_bhs;
+ struct buffer_head *bhs[2];
+};
+
+static inline void fatent_init(struct fat_entry *fatent)
+{
+ fatent->nr_bhs = 0;
+ fatent->entry = 0;
+ fatent->u.ent32_p = NULL;
+ fatent->bhs[0] = fatent->bhs[1] = NULL;
+}
+
+static inline void fatent_set_entry(struct fat_entry *fatent, int entry)
+{
+ fatent->entry = entry;
+ fatent->u.ent32_p = NULL;
+}
+
+static inline void fatent_brelse(struct fat_entry *fatent)
+{
+ int i;
+ fatent->u.ent32_p = NULL;
+ for (i = 0; i < fatent->nr_bhs; i++)
+ brelse(fatent->bhs[i]);
+ fatent->nr_bhs = 0;
+ fatent->bhs[0] = fatent->bhs[1] = NULL;
+}
+
+extern void fat_ent_access_init(struct super_block *sb);
+extern int fat_ent_read(struct inode *inode, struct fat_entry *fatent,
+ int entry);
+extern int fat_ent_write(struct inode *inode, struct fat_entry *fatent,
+ int new, int wait);
+extern int fat_alloc_clusters(struct inode *inode, int *cluster,
+ int nr_cluster);
+extern int fat_free_clusters(struct inode *inode, int cluster);
+extern int fat_count_free_clusters(struct super_block *sb);
+
+/* fat/file.c */
+extern int fat_generic_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern const struct file_operations fat_file_operations;
+extern const struct inode_operations fat_file_inode_operations;
+extern int fat_setattr(struct dentry * dentry, struct iattr * attr);
+extern void fat_truncate(struct inode *inode);
+extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry,
+ struct kstat *stat);
+
+/* fat/inode.c */
+extern void fat_attach(struct inode *inode, loff_t i_pos);
+extern void fat_detach(struct inode *inode);
+extern struct inode *fat_iget(struct super_block *sb, loff_t i_pos);
+extern struct inode *fat_build_inode(struct super_block *sb,
+ struct msdos_dir_entry *de, loff_t i_pos);
+extern int fat_sync_inode(struct inode *inode);
+extern int fat_fill_super(struct super_block *sb, void *data, int silent,
+ const struct inode_operations *fs_dir_inode_ops, int isvfat);
+
+extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
+ struct inode *i2);
+/* fat/misc.c */
+extern void fat_fs_panic(struct super_block *s, const char *fmt, ...)
+ __attribute__ ((format (printf, 2, 3))) __cold;
+extern void fat_clusters_flush(struct super_block *sb);
+extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
+extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts,
+ __le16 __time, __le16 __date, u8 time_cs);
+extern void fat_time_unix2fat(struct msdos_sb_info *sbi, struct timespec *ts,
+ __le16 *time, __le16 *date, u8 *time_cs);
+extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs);
+
+int fat_cache_init(void);
+void fat_cache_destroy(void);
+
+/* helper for printk */
+typedef unsigned long long llu;
+
+#endif /* !_FAT_H */
#include <linux/fs.h>
#include <linux/msdos_fs.h>
#include <linux/blkdev.h>
+#include "fat.h"
struct fatent_operations {
void (*ent_blocknr)(struct super_block *, int, int *, sector_t *);
err_brelse:
brelse(bhs[0]);
err:
- printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n",
- (unsigned long long)blocknr);
+ printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n", (llu)blocknr);
return -EIO;
}
fatent->bhs[0] = sb_bread(sb, blocknr);
if (!fatent->bhs[0]) {
printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n",
- (unsigned long long)blocknr);
+ (llu)blocknr);
return -EIO;
}
fatent->nr_bhs = 1;
/* Is this fatent's blocks including this entry? */
if (!fatent->nr_bhs || bhs[0]->b_blocknr != blocknr)
return 0;
- /* Does this entry need the next block? */
- if (sbi->fat_bits == 12 && (offset + 1) >= sb->s_blocksize) {
- if (fatent->nr_bhs != 2 || bhs[1]->b_blocknr != (blocknr + 1))
- return 0;
+ if (sbi->fat_bits == 12) {
+ if ((offset + 1) < sb->s_blocksize) {
+ /* This entry is on bhs[0]. */
+ if (fatent->nr_bhs == 2) {
+ brelse(bhs[1]);
+ fatent->nr_bhs = 1;
+ }
+ } else {
+ /* This entry needs the next block. */
+ if (fatent->nr_bhs != 2)
+ return 0;
+ if (bhs[1]->b_blocknr != (blocknr + 1))
+ return 0;
+ }
}
ops->ent_set_ptr(fatent, offset);
return 1;
#include <linux/module.h>
#include <linux/mount.h>
#include <linux/time.h>
-#include <linux/msdos_fs.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
#include <linux/backing-dev.h>
#include <linux/blkdev.h>
#include <linux/fsnotify.h>
#include <linux/security.h>
+#include "fat.h"
int fat_generic_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
u32 attr;
- if (inode->i_ino == MSDOS_ROOT_INO)
- attr = ATTR_DIR;
- else
- attr = fat_attr(inode);
+ mutex_lock(&inode->i_mutex);
+ attr = fat_make_attrs(inode);
+ mutex_unlock(&inode->i_mutex);
return put_user(attr, user_attr);
}
/* Merge in ATTR_VOLUME and ATTR_DIR */
attr |= (MSDOS_I(inode)->i_attrs & ATTR_VOLUME) |
(is_dir ? ATTR_DIR : 0);
- oldattr = fat_attr(inode);
+ oldattr = fat_make_attrs(inode);
/* Equivalent to a chmod() */
ia.ia_valid = ATTR_MODE | ATTR_CTIME;
ia.ia_ctime = current_fs_time(inode->i_sb);
- if (is_dir) {
- ia.ia_mode = MSDOS_MKMODE(attr,
- S_IRWXUGO & ~sbi->options.fs_dmask)
- | S_IFDIR;
- } else {
- ia.ia_mode = MSDOS_MKMODE(attr,
- (S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO))
- & ~sbi->options.fs_fmask)
- | S_IFREG;
+ if (is_dir)
+ ia.ia_mode = fat_make_mode(sbi, attr, S_IRWXUGO);
+ else {
+ ia.ia_mode = fat_make_mode(sbi, attr,
+ S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO));
}
/* The root directory has no attributes */
inode->i_flags &= S_IMMUTABLE;
}
- MSDOS_I(inode)->i_attrs = attr & ATTR_UNUSED;
+ fat_save_attrs(inode, attr);
mark_inode_dirty(inode);
up:
mnt_drop_write(filp->f_path.mnt);
/*
* Note, the basic check is already done by a caller of
- * (attr->ia_mode & ~MSDOS_VALID_MODE)
+ * (attr->ia_mode & ~FAT_VALID_MODE)
*/
if (S_ISREG(inode->i_mode))
/*
* Of the r and x bits, all (subject to umask) must be present. Of the
* w bits, either all (subject to umask) or none must be present.
+ *
+ * If fat_mode_can_hold_ro(inode) is false, can't change w bits.
*/
if ((perm & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))
return -EPERM;
- if ((perm & S_IWUGO) && ((perm & S_IWUGO) != (S_IWUGO & ~mask)))
- return -EPERM;
+ if (fat_mode_can_hold_ro(inode)) {
+ if ((perm & S_IWUGO) && ((perm & S_IWUGO) != (S_IWUGO & ~mask)))
+ return -EPERM;
+ } else {
+ if ((perm & S_IWUGO) != (S_IWUGO & ~mask))
+ return -EPERM;
+ }
*mode_ptr &= S_IFMT | perm;
}
#define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
+/* valid file mode bits */
+#define FAT_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXUGO)
int fat_setattr(struct dentry *dentry, struct iattr *attr)
{
struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);
struct inode *inode = dentry->d_inode;
- int error = 0;
unsigned int ia_valid;
+ int error;
/*
* Expand the file. Since inode_setattr() updates ->i_size
((attr->ia_valid & ATTR_GID) &&
(attr->ia_gid != sbi->options.fs_gid)) ||
((attr->ia_valid & ATTR_MODE) &&
- (attr->ia_mode & ~MSDOS_VALID_MODE)))
+ (attr->ia_mode & ~FAT_VALID_MODE)))
error = -EPERM;
if (error) {
attr->ia_valid &= ~ATTR_MODE;
}
- error = inode_setattr(inode, attr);
+ if (attr->ia_valid)
+ error = inode_setattr(inode, attr);
out:
return error;
}
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/seq_file.h>
-#include <linux/msdos_fs.h>
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/buffer_head.h>
#include <linux/uio.h>
#include <linux/writeback.h>
#include <linux/log2.h>
+#include <linux/hash.h>
#include <asm/unaligned.h>
+#include "fat.h"
#ifndef CONFIG_FAT_DEFAULT_IOCHARSET
/* if user don't select VFAT, this is undefined. */
sector_t phys;
int err, offset;
- err = fat_bmap(inode, iblock, &phys, &mapped_blocks);
+ err = fat_bmap(inode, iblock, &phys, &mapped_blocks, create);
if (err)
return err;
if (phys) {
*max_blocks = min(mapped_blocks, *max_blocks);
MSDOS_I(inode)->mmu_private += *max_blocks << sb->s_blocksize_bits;
- err = fat_bmap(inode, iblock, &phys, &mapped_blocks);
+ err = fat_bmap(inode, iblock, &phys, &mapped_blocks, create);
if (err)
return err;
static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
{
- return generic_block_bmap(mapping, block, fat_get_block);
+ sector_t blocknr;
+
+ /* fat_get_cluster() assumes the requested blocknr isn't truncated. */
+ mutex_lock(&mapping->host->i_mutex);
+ blocknr = generic_block_bmap(mapping, block, fat_get_block);
+ mutex_unlock(&mapping->host->i_mutex);
+
+ return blocknr;
}
static const struct address_space_operations fat_aops = {
INIT_HLIST_HEAD(&sbi->inode_hashtable[i]);
}
-static inline unsigned long fat_hash(struct super_block *sb, loff_t i_pos)
+static inline unsigned long fat_hash(loff_t i_pos)
{
- unsigned long tmp = (unsigned long)i_pos | (unsigned long) sb;
- tmp = tmp + (tmp >> FAT_HASH_BITS) + (tmp >> FAT_HASH_BITS * 2);
- return tmp & FAT_HASH_MASK;
+ return hash_32(i_pos, FAT_HASH_BITS);
}
void fat_attach(struct inode *inode, loff_t i_pos)
{
- struct super_block *sb = inode->i_sb;
- struct msdos_sb_info *sbi = MSDOS_SB(sb);
+ struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
+ struct hlist_head *head = sbi->inode_hashtable + fat_hash(i_pos);
spin_lock(&sbi->inode_hash_lock);
MSDOS_I(inode)->i_pos = i_pos;
- hlist_add_head(&MSDOS_I(inode)->i_fat_hash,
- sbi->inode_hashtable + fat_hash(sb, i_pos));
+ hlist_add_head(&MSDOS_I(inode)->i_fat_hash, head);
spin_unlock(&sbi->inode_hash_lock);
}
-
EXPORT_SYMBOL_GPL(fat_attach);
void fat_detach(struct inode *inode)
hlist_del_init(&MSDOS_I(inode)->i_fat_hash);
spin_unlock(&sbi->inode_hash_lock);
}
-
EXPORT_SYMBOL_GPL(fat_detach);
struct inode *fat_iget(struct super_block *sb, loff_t i_pos)
{
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- struct hlist_head *head = sbi->inode_hashtable + fat_hash(sb, i_pos);
+ struct hlist_head *head = sbi->inode_hashtable + fat_hash(i_pos);
struct hlist_node *_p;
struct msdos_inode_info *i;
struct inode *inode = NULL;
if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) {
inode->i_generation &= ~1;
- inode->i_mode = MSDOS_MKMODE(de->attr,
- S_IRWXUGO & ~sbi->options.fs_dmask) | S_IFDIR;
+ inode->i_mode = fat_make_mode(sbi, de->attr, S_IRWXUGO);
inode->i_op = sbi->dir_ops;
inode->i_fop = &fat_dir_operations;
inode->i_nlink = fat_subdirs(inode);
} else { /* not a directory */
inode->i_generation |= 1;
- inode->i_mode = MSDOS_MKMODE(de->attr,
- ((sbi->options.showexec && !is_exec(de->name + 8))
- ? S_IRUGO|S_IWUGO : S_IRWXUGO)
- & ~sbi->options.fs_fmask) | S_IFREG;
+ inode->i_mode = fat_make_mode(sbi, de->attr,
+ ((sbi->options.showexec && !is_exec(de->name + 8))
+ ? S_IRUGO|S_IWUGO : S_IRWXUGO));
MSDOS_I(inode)->i_start = le16_to_cpu(de->start);
if (sbi->fat_bits == 32)
MSDOS_I(inode)->i_start |= (le16_to_cpu(de->starthi) << 16);
if (sbi->options.sys_immutable)
inode->i_flags |= S_IMMUTABLE;
}
- MSDOS_I(inode)->i_attrs = de->attr & ATTR_UNUSED;
+ fat_save_attrs(inode, de->attr);
+
inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1))
& ~((loff_t)sbi->cluster_size - 1)) >> 9;
- inode->i_mtime.tv_sec =
- date_dos2unix(le16_to_cpu(de->time), le16_to_cpu(de->date),
- sbi->options.tz_utc);
- inode->i_mtime.tv_nsec = 0;
+
+ fat_time_fat2unix(sbi, &inode->i_mtime, de->time, de->date, 0);
if (sbi->options.isvfat) {
- int secs = de->ctime_cs / 100;
- int csecs = de->ctime_cs % 100;
- inode->i_ctime.tv_sec =
- date_dos2unix(le16_to_cpu(de->ctime),
- le16_to_cpu(de->cdate),
- sbi->options.tz_utc) + secs;
- inode->i_ctime.tv_nsec = csecs * 10000000;
- inode->i_atime.tv_sec =
- date_dos2unix(0, le16_to_cpu(de->adate),
- sbi->options.tz_utc);
- inode->i_atime.tv_nsec = 0;
+ fat_time_fat2unix(sbi, &inode->i_ctime, de->ctime,
+ de->cdate, de->ctime_cs);
+ fat_time_fat2unix(sbi, &inode->i_atime, 0, de->adate, 0);
} else
inode->i_ctime = inode->i_atime = inode->i_mtime;
static void fat_clear_inode(struct inode *inode)
{
- struct super_block *sb = inode->i_sb;
- struct msdos_sb_info *sbi = MSDOS_SB(sb);
-
- spin_lock(&sbi->inode_hash_lock);
fat_cache_inval_inode(inode);
- hlist_del_init(&MSDOS_I(inode)->i_fat_hash);
- spin_unlock(&sbi->inode_hash_lock);
+ fat_detach(inode);
}
static void fat_write_super(struct super_block *sb)
return 0;
}
+static inline loff_t fat_i_pos_read(struct msdos_sb_info *sbi,
+ struct inode *inode)
+{
+ loff_t i_pos;
+#if BITS_PER_LONG == 32
+ spin_lock(&sbi->inode_hash_lock);
+#endif
+ i_pos = MSDOS_I(inode)->i_pos;
+#if BITS_PER_LONG == 32
+ spin_unlock(&sbi->inode_hash_lock);
+#endif
+ return i_pos;
+}
+
static int fat_write_inode(struct inode *inode, int wait)
{
struct super_block *sb = inode->i_sb;
loff_t i_pos;
int err;
+ if (inode->i_ino == MSDOS_ROOT_INO)
+ return 0;
+
retry:
- i_pos = MSDOS_I(inode)->i_pos;
- if (inode->i_ino == MSDOS_ROOT_INO || !i_pos)
+ i_pos = fat_i_pos_read(sbi, inode);
+ if (!i_pos)
return 0;
bh = sb_bread(sb, i_pos >> sbi->dir_per_block_bits);
raw_entry->size = 0;
else
raw_entry->size = cpu_to_le32(inode->i_size);
- raw_entry->attr = fat_attr(inode);
+ raw_entry->attr = fat_make_attrs(inode);
raw_entry->start = cpu_to_le16(MSDOS_I(inode)->i_logstart);
raw_entry->starthi = cpu_to_le16(MSDOS_I(inode)->i_logstart >> 16);
- fat_date_unix2dos(inode->i_mtime.tv_sec, &raw_entry->time,
- &raw_entry->date, sbi->options.tz_utc);
+ fat_time_unix2fat(sbi, &inode->i_mtime, &raw_entry->time,
+ &raw_entry->date, NULL);
if (sbi->options.isvfat) {
__le16 atime;
- fat_date_unix2dos(inode->i_ctime.tv_sec, &raw_entry->ctime,
- &raw_entry->cdate, sbi->options.tz_utc);
- fat_date_unix2dos(inode->i_atime.tv_sec, &atime,
- &raw_entry->adate, sbi->options.tz_utc);
- raw_entry->ctime_cs = (inode->i_ctime.tv_sec & 1) * 100 +
- inode->i_ctime.tv_nsec / 10000000;
+ fat_time_unix2fat(sbi, &inode->i_ctime, &raw_entry->ctime,
+ &raw_entry->cdate, &raw_entry->ctime_cs);
+ fat_time_unix2fat(sbi, &inode->i_atime, &atime,
+ &raw_entry->adate, NULL);
}
spin_unlock(&sbi->inode_hash_lock);
mark_buffer_dirty(bh);
seq_puts(m, ",uni_xlate");
if (!opts->numtail)
seq_puts(m, ",nonumtail");
+ if (opts->rodir)
+ seq_puts(m, ",rodir");
}
- if (sbi->options.flush)
+ if (opts->flush)
seq_puts(m, ",flush");
if (opts->tz_utc)
seq_puts(m, ",tz=UTC");
Opt_charset, Opt_shortname_lower, Opt_shortname_win95,
Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes,
Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes,
- Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_err,
+ Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err,
};
static const match_table_t fat_tokens = {
{Opt_nonumtail_yes, "nonumtail=yes"},
{Opt_nonumtail_yes, "nonumtail=true"},
{Opt_nonumtail_yes, "nonumtail"},
+ {Opt_rodir, "rodir"},
{Opt_err, NULL}
};
opts->allow_utime = -1;
opts->codepage = fat_default_codepage;
opts->iocharset = fat_default_iocharset;
- if (is_vfat)
+ if (is_vfat) {
opts->shortname = VFAT_SFN_DISPLAY_LOWER|VFAT_SFN_CREATE_WIN95;
- else
+ opts->rodir = 0;
+ } else {
opts->shortname = 0;
+ opts->rodir = 1;
+ }
opts->name_check = 'n';
opts->quiet = opts->showexec = opts->sys_immutable = opts->dotsOK = 0;
opts->utf8 = opts->unicode_xlate = 0;
case Opt_nonumtail_yes: /* empty or 1 or yes or true */
opts->numtail = 0; /* negated option */
break;
+ case Opt_rodir:
+ opts->rodir = 1;
+ break;
/* obsolete mount options */
case Opt_obsolate:
inode->i_gid = sbi->options.fs_gid;
inode->i_version++;
inode->i_generation = 0;
- inode->i_mode = (S_IRWXUGO & ~sbi->options.fs_dmask) | S_IFDIR;
+ inode->i_mode = fat_make_mode(sbi, ATTR_DIR, S_IRWXUGO);
inode->i_op = sbi->dir_ops;
inode->i_fop = &fat_dir_operations;
if (sbi->fat_bits == 32) {
MSDOS_I(inode)->i_logstart = 0;
MSDOS_I(inode)->mmu_private = inode->i_size;
- MSDOS_I(inode)->i_attrs = ATTR_NONE;
+ fat_save_attrs(inode, ATTR_DIR);
inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = 0;
inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = 0;
inode->i_nlink = fat_subdirs(inode)+2;
#include <linux/module.h>
#include <linux/fs.h>
-#include <linux/msdos_fs.h>
#include <linux/buffer_head.h>
+#include "fat.h"
/*
* fat_fs_panic reports a severe file system problem and sets the file system
mark_inode_dirty(inode);
}
if (new_fclus != (inode->i_blocks >> (sbi->cluster_bits - 9))) {
- fat_fs_panic(sb, "clusters badly computed (%d != %lu)",
- new_fclus, inode->i_blocks >> (sbi->cluster_bits - 9));
+ fat_fs_panic(sb, "clusters badly computed (%d != %llu)",
+ new_fclus,
+ (llu)(inode->i_blocks >> (sbi->cluster_bits - 9)));
fat_cache_inval_inode(inode);
}
inode->i_blocks += nr_cluster << (sbi->cluster_bits - 9);
extern struct timezone sys_tz;
+/*
+ * The epoch of FAT timestamp is 1980.
+ * : bits : value
+ * date: 0 - 4: day (1 - 31)
+ * date: 5 - 8: month (1 - 12)
+ * date: 9 - 15: year (0 - 127) from 1980
+ * time: 0 - 4: sec (0 - 29) 2sec counts
+ * time: 5 - 10: min (0 - 59)
+ * time: 11 - 15: hour (0 - 23)
+ */
+#define SECS_PER_MIN 60
+#define SECS_PER_HOUR (60 * 60)
+#define SECS_PER_DAY (SECS_PER_HOUR * 24)
+#define UNIX_SECS_1980 315532800L
+#if BITS_PER_LONG == 64
+#define UNIX_SECS_2108 4354819200L
+#endif
+/* days between 1.1.70 and 1.1.80 (2 leap days) */
+#define DAYS_DELTA (365 * 10 + 2)
+/* 120 (2100 - 1980) isn't leap year */
+#define YEAR_2100 120
+#define IS_LEAP_YEAR(y) (!((y) & 3) && (y) != YEAR_2100)
+
/* Linear day numbers of the respective 1sts in non-leap years. */
-static int day_n[] = {
- /* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */
- 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0
+static time_t days_in_year[] = {
+ /* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */
+ 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0,
};
-/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
-int date_dos2unix(unsigned short time, unsigned short date, int tz_utc)
+/* Convert a FAT time/date pair to a UNIX date (seconds since 1 1 70). */
+void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts,
+ __le16 __time, __le16 __date, u8 time_cs)
{
- int month, year, secs;
+ u16 time = le16_to_cpu(__time), date = le16_to_cpu(__date);
+ time_t second, day, leap_day, month, year;
- /*
- * first subtract and mask after that... Otherwise, if
- * date == 0, bad things happen
- */
- month = ((date >> 5) - 1) & 15;
- year = date >> 9;
- secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400*
- ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 &&
- month < 2 ? 1 : 0)+3653);
- /* days since 1.1.70 plus 80's leap day */
- if (!tz_utc)
- secs += sys_tz.tz_minuteswest*60;
- return secs;
+ year = date >> 9;
+ month = max(1, (date >> 5) & 0xf);
+ day = max(1, date & 0x1f) - 1;
+
+ leap_day = (year + 3) / 4;
+ if (year > YEAR_2100) /* 2100 isn't leap year */
+ leap_day--;
+ if (IS_LEAP_YEAR(year) && month > 2)
+ leap_day++;
+
+ second = (time & 0x1f) << 1;
+ second += ((time >> 5) & 0x3f) * SECS_PER_MIN;
+ second += (time >> 11) * SECS_PER_HOUR;
+ second += (year * 365 + leap_day
+ + days_in_year[month] + day
+ + DAYS_DELTA) * SECS_PER_DAY;
+
+ if (!sbi->options.tz_utc)
+ second += sys_tz.tz_minuteswest * SECS_PER_MIN;
+
+ if (time_cs) {
+ ts->tv_sec = second + (time_cs / 100);
+ ts->tv_nsec = (time_cs % 100) * 10000000;
+ } else {
+ ts->tv_sec = second;
+ ts->tv_nsec = 0;
+ }
}
-/* Convert linear UNIX date to a MS-DOS time/date pair. */
-void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date, int tz_utc)
+/* Convert linear UNIX date to a FAT time/date pair. */
+void fat_time_unix2fat(struct msdos_sb_info *sbi, struct timespec *ts,
+ __le16 *time, __le16 *date, u8 *time_cs)
{
- int day, year, nl_day, month;
+ time_t second = ts->tv_sec;
+ time_t day, leap_day, month, year;
- if (!tz_utc)
- unix_date -= sys_tz.tz_minuteswest*60;
+ if (!sbi->options.tz_utc)
+ second -= sys_tz.tz_minuteswest * SECS_PER_MIN;
/* Jan 1 GMT 00:00:00 1980. But what about another time zone? */
- if (unix_date < 315532800)
- unix_date = 315532800;
-
- *time = cpu_to_le16((unix_date % 60)/2+(((unix_date/60) % 60) << 5)+
- (((unix_date/3600) % 24) << 11));
- day = unix_date/86400-3652;
- year = day/365;
- if ((year+3)/4+365*year > day)
+ if (second < UNIX_SECS_1980) {
+ *time = 0;
+ *date = cpu_to_le16((0 << 9) | (1 << 5) | 1);
+ if (time_cs)
+ *time_cs = 0;
+ return;
+ }
+#if BITS_PER_LONG == 64
+ if (second >= UNIX_SECS_2108) {
+ *time = cpu_to_le16((23 << 11) | (59 << 5) | 29);
+ *date = cpu_to_le16((127 << 9) | (12 << 5) | 31);
+ if (time_cs)
+ *time_cs = 199;
+ return;
+ }
+#endif
+
+ day = second / SECS_PER_DAY - DAYS_DELTA;
+ year = day / 365;
+ leap_day = (year + 3) / 4;
+ if (year > YEAR_2100) /* 2100 isn't leap year */
+ leap_day--;
+ if (year * 365 + leap_day > day)
year--;
- day -= (year+3)/4+365*year;
- if (day == 59 && !(year & 3)) {
- nl_day = day;
+ leap_day = (year + 3) / 4;
+ if (year > YEAR_2100) /* 2100 isn't leap year */
+ leap_day--;
+ day -= year * 365 + leap_day;
+
+ if (IS_LEAP_YEAR(year) && day == days_in_year[3]) {
month = 2;
} else {
- nl_day = (year & 3) || day <= 59 ? day : day-1;
- for (month = 0; month < 12; month++) {
- if (day_n[month] > nl_day)
+ if (IS_LEAP_YEAR(year) && day > days_in_year[3])
+ day--;
+ for (month = 1; month < 12; month++) {
+ if (days_in_year[month + 1] > day)
break;
}
}
- *date = cpu_to_le16(nl_day-day_n[month-1]+1+(month << 5)+(year << 9));
-}
+ day -= days_in_year[month];
-EXPORT_SYMBOL_GPL(fat_date_unix2dos);
+ *time = cpu_to_le16(((second / SECS_PER_HOUR) % 24) << 11
+ | ((second / SECS_PER_MIN) % 60) << 5
+ | (second % SECS_PER_MIN) >> 1);
+ *date = cpu_to_le16((year << 9) | (month << 5) | (day + 1));
+ if (time_cs)
+ *time_cs = (ts->tv_sec & 1) * 100 + ts->tv_nsec / 10000000;
+}
+EXPORT_SYMBOL_GPL(fat_time_unix2fat);
int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs)
{
--- /dev/null
+/*
+ * linux/fs/msdos/namei.c
+ *
+ * Written 1992,1993 by Werner Almesberger
+ * Hidden files 1995 by Albert Cahalan <albert@ccs.neu.edu> <adc@coe.neu.edu>
+ * Rewritten for constant inumbers 1999 by Al Viro
+ */
+
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/buffer_head.h>
+#include <linux/smp_lock.h>
+#include "fat.h"
+
+/* Characters that are undesirable in an MS-DOS file name */
+static unsigned char bad_chars[] = "*?<>|\"";
+static unsigned char bad_if_strict[] = "+=,; ";
+
+/***** Formats an MS-DOS file name. Rejects invalid names. */
+static int msdos_format_name(const unsigned char *name, int len,
+ unsigned char *res, struct fat_mount_options *opts)
+ /*
+ * name is the proposed name, len is its length, res is
+ * the resulting name, opts->name_check is either (r)elaxed,
+ * (n)ormal or (s)trict, opts->dotsOK allows dots at the
+ * beginning of name (for hidden files)
+ */
+{
+ unsigned char *walk;
+ unsigned char c;
+ int space;
+
+ if (name[0] == '.') { /* dotfile because . and .. already done */
+ if (opts->dotsOK) {
+ /* Get rid of dot - test for it elsewhere */
+ name++;
+ len--;
+ } else
+ return -EINVAL;
+ }
+ /*
+ * disallow names that _really_ start with a dot
+ */
+ space = 1;
+ c = 0;
+ for (walk = res; len && walk - res < 8; walk++) {
+ c = *name++;
+ len--;
+ if (opts->name_check != 'r' && strchr(bad_chars, c))
+ return -EINVAL;
+ if (opts->name_check == 's' && strchr(bad_if_strict, c))
+ return -EINVAL;
+ if (c >= 'A' && c <= 'Z' && opts->name_check == 's')
+ return -EINVAL;
+ if (c < ' ' || c == ':' || c == '\\')
+ return -EINVAL;
+ /*
+ * 0xE5 is legal as a first character, but we must substitute
+ * 0x05 because 0xE5 marks deleted files. Yes, DOS really
+ * does this.
+ * It seems that Microsoft hacked DOS to support non-US
+ * characters after the 0xE5 character was already in use to
+ * mark deleted files.
+ */
+ if ((res == walk) && (c == 0xE5))
+ c = 0x05;
+ if (c == '.')
+ break;
+ space = (c == ' ');
+ *walk = (!opts->nocase && c >= 'a' && c <= 'z') ? c - 32 : c;
+ }
+ if (space)
+ return -EINVAL;
+ if (opts->name_check == 's' && len && c != '.') {
+ c = *name++;
+ len--;
+ if (c != '.')
+ return -EINVAL;
+ }
+ while (c != '.' && len--)
+ c = *name++;
+ if (c == '.') {
+ while (walk - res < 8)
+ *walk++ = ' ';
+ while (len > 0 && walk - res < MSDOS_NAME) {
+ c = *name++;
+ len--;
+ if (opts->name_check != 'r' && strchr(bad_chars, c))
+ return -EINVAL;
+ if (opts->name_check == 's' &&
+ strchr(bad_if_strict, c))
+ return -EINVAL;
+ if (c < ' ' || c == ':' || c == '\\')
+ return -EINVAL;
+ if (c == '.') {
+ if (opts->name_check == 's')
+ return -EINVAL;
+ break;
+ }
+ if (c >= 'A' && c <= 'Z' && opts->name_check == 's')
+ return -EINVAL;
+ space = c == ' ';
+ if (!opts->nocase && c >= 'a' && c <= 'z')
+ *walk++ = c - 32;
+ else
+ *walk++ = c;
+ }
+ if (space)
+ return -EINVAL;
+ if (opts->name_check == 's' && len)
+ return -EINVAL;
+ }
+ while (walk - res < MSDOS_NAME)
+ *walk++ = ' ';
+
+ return 0;
+}
+
+/***** Locates a directory entry. Uses unformatted name. */
+static int msdos_find(struct inode *dir, const unsigned char *name, int len,
+ struct fat_slot_info *sinfo)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
+ unsigned char msdos_name[MSDOS_NAME];
+ int err;
+
+ err = msdos_format_name(name, len, msdos_name, &sbi->options);
+ if (err)
+ return -ENOENT;
+
+ err = fat_scan(dir, msdos_name, sinfo);
+ if (!err && sbi->options.dotsOK) {
+ if (name[0] == '.') {
+ if (!(sinfo->de->attr & ATTR_HIDDEN))
+ err = -ENOENT;
+ } else {
+ if (sinfo->de->attr & ATTR_HIDDEN)
+ err = -ENOENT;
+ }
+ if (err)
+ brelse(sinfo->bh);
+ }
+ return err;
+}
+
+/*
+ * Compute the hash for the msdos name corresponding to the dentry.
+ * Note: if the name is invalid, we leave the hash code unchanged so
+ * that the existing dentry can be used. The msdos fs routines will
+ * return ENOENT or EINVAL as appropriate.
+ */
+static int msdos_hash(struct dentry *dentry, struct qstr *qstr)
+{
+ struct fat_mount_options *options = &MSDOS_SB(dentry->d_sb)->options;
+ unsigned char msdos_name[MSDOS_NAME];
+ int error;
+
+ error = msdos_format_name(qstr->name, qstr->len, msdos_name, options);
+ if (!error)
+ qstr->hash = full_name_hash(msdos_name, MSDOS_NAME);
+ return 0;
+}
+
+/*
+ * Compare two msdos names. If either of the names are invalid,
+ * we fall back to doing the standard name comparison.
+ */
+static int msdos_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+ struct fat_mount_options *options = &MSDOS_SB(dentry->d_sb)->options;
+ unsigned char a_msdos_name[MSDOS_NAME], b_msdos_name[MSDOS_NAME];
+ int error;
+
+ error = msdos_format_name(a->name, a->len, a_msdos_name, options);
+ if (error)
+ goto old_compare;
+ error = msdos_format_name(b->name, b->len, b_msdos_name, options);
+ if (error)
+ goto old_compare;
+ error = memcmp(a_msdos_name, b_msdos_name, MSDOS_NAME);
+out:
+ return error;
+
+old_compare:
+ error = 1;
+ if (a->len == b->len)
+ error = memcmp(a->name, b->name, a->len);
+ goto out;
+}
+
+static struct dentry_operations msdos_dentry_operations = {
+ .d_hash = msdos_hash,
+ .d_compare = msdos_cmp,
+};
+
+/*
+ * AV. Wrappers for FAT sb operations. Is it wise?
+ */
+
+/***** Get inode using directory and name */
+static struct dentry *msdos_lookup(struct inode *dir, struct dentry *dentry,
+ struct nameidata *nd)
+{
+ struct super_block *sb = dir->i_sb;
+ struct fat_slot_info sinfo;
+ struct inode *inode;
+ int err;
+
+ lock_super(sb);
+
+ err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
+ if (err) {
+ if (err == -ENOENT) {
+ inode = NULL;
+ goto out;
+ }
+ goto error;
+ }
+
+ inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
+ brelse(sinfo.bh);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto error;
+ }
+out:
+ unlock_super(sb);
+ dentry->d_op = &msdos_dentry_operations;
+ dentry = d_splice_alias(inode, dentry);
+ if (dentry)
+ dentry->d_op = &msdos_dentry_operations;
+ return dentry;
+
+error:
+ unlock_super(sb);
+ return ERR_PTR(err);
+}
+
+/***** Creates a directory entry (name is already formatted). */
+static int msdos_add_entry(struct inode *dir, const unsigned char *name,
+ int is_dir, int is_hid, int cluster,
+ struct timespec *ts, struct fat_slot_info *sinfo)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
+ struct msdos_dir_entry de;
+ __le16 time, date;
+ int err;
+
+ memcpy(de.name, name, MSDOS_NAME);
+ de.attr = is_dir ? ATTR_DIR : ATTR_ARCH;
+ if (is_hid)
+ de.attr |= ATTR_HIDDEN;
+ de.lcase = 0;
+ fat_time_unix2fat(sbi, ts, &time, &date, NULL);
+ de.cdate = de.adate = 0;
+ de.ctime = 0;
+ de.ctime_cs = 0;
+ de.time = time;
+ de.date = date;
+ de.start = cpu_to_le16(cluster);
+ de.starthi = cpu_to_le16(cluster >> 16);
+ de.size = 0;
+
+ err = fat_add_entries(dir, &de, 1, sinfo);
+ if (err)
+ return err;
+
+ dir->i_ctime = dir->i_mtime = *ts;
+ if (IS_DIRSYNC(dir))
+ (void)fat_sync_inode(dir);
+ else
+ mark_inode_dirty(dir);
+
+ return 0;
+}
+
+/***** Create a file */
+static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd)
+{
+ struct super_block *sb = dir->i_sb;
+ struct inode *inode = NULL;
+ struct fat_slot_info sinfo;
+ struct timespec ts;
+ unsigned char msdos_name[MSDOS_NAME];
+ int err, is_hid;
+
+ lock_super(sb);
+
+ err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
+ msdos_name, &MSDOS_SB(sb)->options);
+ if (err)
+ goto out;
+ is_hid = (dentry->d_name.name[0] == '.') && (msdos_name[0] != '.');
+ /* Have to do it due to foo vs. .foo conflicts */
+ if (!fat_scan(dir, msdos_name, &sinfo)) {
+ brelse(sinfo.bh);
+ err = -EINVAL;
+ goto out;
+ }
+
+ ts = CURRENT_TIME_SEC;
+ err = msdos_add_entry(dir, msdos_name, 0, is_hid, 0, &ts, &sinfo);
+ if (err)
+ goto out;
+ inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
+ brelse(sinfo.bh);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
+ inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
+ /* timestamp is already written, so mark_inode_dirty() is unneeded. */
+
+ d_instantiate(dentry, inode);
+out:
+ unlock_super(sb);
+ if (!err)
+ err = fat_flush_inodes(sb, dir, inode);
+ return err;
+}
+
+/***** Remove a directory */
+static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ struct super_block *sb = dir->i_sb;
+ struct inode *inode = dentry->d_inode;
+ struct fat_slot_info sinfo;
+ int err;
+
+ lock_super(sb);
+ /*
+ * Check whether the directory is not in use, then check
+ * whether it is empty.
+ */
+ err = fat_dir_empty(inode);
+ if (err)
+ goto out;
+ err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
+ if (err)
+ goto out;
+
+ err = fat_remove_entries(dir, &sinfo); /* and releases bh */
+ if (err)
+ goto out;
+ drop_nlink(dir);
+
+ clear_nlink(inode);
+ inode->i_ctime = CURRENT_TIME_SEC;
+ fat_detach(inode);
+out:
+ unlock_super(sb);
+ if (!err)
+ err = fat_flush_inodes(sb, dir, inode);
+
+ return err;
+}
+
+/***** Make a directory */
+static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+ struct super_block *sb = dir->i_sb;
+ struct fat_slot_info sinfo;
+ struct inode *inode;
+ unsigned char msdos_name[MSDOS_NAME];
+ struct timespec ts;
+ int err, is_hid, cluster;
+
+ lock_super(sb);
+
+ err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
+ msdos_name, &MSDOS_SB(sb)->options);
+ if (err)
+ goto out;
+ is_hid = (dentry->d_name.name[0] == '.') && (msdos_name[0] != '.');
+ /* foo vs .foo situation */
+ if (!fat_scan(dir, msdos_name, &sinfo)) {
+ brelse(sinfo.bh);
+ err = -EINVAL;
+ goto out;
+ }
+
+ ts = CURRENT_TIME_SEC;
+ cluster = fat_alloc_new_dir(dir, &ts);
+ if (cluster < 0) {
+ err = cluster;
+ goto out;
+ }
+ err = msdos_add_entry(dir, msdos_name, 1, is_hid, cluster, &ts, &sinfo);
+ if (err)
+ goto out_free;
+ inc_nlink(dir);
+
+ inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
+ brelse(sinfo.bh);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ /* the directory was completed, just return a error */
+ goto out;
+ }
+ inode->i_nlink = 2;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
+ /* timestamp is already written, so mark_inode_dirty() is unneeded. */
+
+ d_instantiate(dentry, inode);
+
+ unlock_super(sb);
+ fat_flush_inodes(sb, dir, inode);
+ return 0;
+
+out_free:
+ fat_free_clusters(dir, cluster);
+out:
+ unlock_super(sb);
+ return err;
+}
+
+/***** Unlink a file */
+static int msdos_unlink(struct inode *dir, struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ struct super_block *sb= inode->i_sb;
+ struct fat_slot_info sinfo;
+ int err;
+
+ lock_super(sb);
+ err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
+ if (err)
+ goto out;
+
+ err = fat_remove_entries(dir, &sinfo); /* and releases bh */
+ if (err)
+ goto out;
+ clear_nlink(inode);
+ inode->i_ctime = CURRENT_TIME_SEC;
+ fat_detach(inode);
+out:
+ unlock_super(sb);
+ if (!err)
+ err = fat_flush_inodes(sb, dir, inode);
+
+ return err;
+}
+
+static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
+ struct dentry *old_dentry,
+ struct inode *new_dir, unsigned char *new_name,
+ struct dentry *new_dentry, int is_hid)
+{
+ struct buffer_head *dotdot_bh;
+ struct msdos_dir_entry *dotdot_de;
+ struct inode *old_inode, *new_inode;
+ struct fat_slot_info old_sinfo, sinfo;
+ struct timespec ts;
+ loff_t dotdot_i_pos, new_i_pos;
+ int err, old_attrs, is_dir, update_dotdot, corrupt = 0;
+
+ old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
+ old_inode = old_dentry->d_inode;
+ new_inode = new_dentry->d_inode;
+
+ err = fat_scan(old_dir, old_name, &old_sinfo);
+ if (err) {
+ err = -EIO;
+ goto out;
+ }
+
+ is_dir = S_ISDIR(old_inode->i_mode);
+ update_dotdot = (is_dir && old_dir != new_dir);
+ if (update_dotdot) {
+ if (fat_get_dotdot_entry(old_inode, &dotdot_bh, &dotdot_de,
+ &dotdot_i_pos) < 0) {
+ err = -EIO;
+ goto out;
+ }
+ }
+
+ old_attrs = MSDOS_I(old_inode)->i_attrs;
+ err = fat_scan(new_dir, new_name, &sinfo);
+ if (!err) {
+ if (!new_inode) {
+ /* "foo" -> ".foo" case. just change the ATTR_HIDDEN */
+ if (sinfo.de != old_sinfo.de) {
+ err = -EINVAL;
+ goto out;
+ }
+ if (is_hid)
+ MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
+ else
+ MSDOS_I(old_inode)->i_attrs &= ~ATTR_HIDDEN;
+ if (IS_DIRSYNC(old_dir)) {
+ err = fat_sync_inode(old_inode);
+ if (err) {
+ MSDOS_I(old_inode)->i_attrs = old_attrs;
+ goto out;
+ }
+ } else
+ mark_inode_dirty(old_inode);
+
+ old_dir->i_version++;
+ old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
+ if (IS_DIRSYNC(old_dir))
+ (void)fat_sync_inode(old_dir);
+ else
+ mark_inode_dirty(old_dir);
+ goto out;
+ }
+ }
+
+ ts = CURRENT_TIME_SEC;
+ if (new_inode) {
+ if (err)
+ goto out;
+ if (is_dir) {
+ err = fat_dir_empty(new_inode);
+ if (err)
+ goto out;
+ }
+ new_i_pos = MSDOS_I(new_inode)->i_pos;
+ fat_detach(new_inode);
+ } else {
+ err = msdos_add_entry(new_dir, new_name, is_dir, is_hid, 0,
+ &ts, &sinfo);
+ if (err)
+ goto out;
+ new_i_pos = sinfo.i_pos;
+ }
+ new_dir->i_version++;
+
+ fat_detach(old_inode);
+ fat_attach(old_inode, new_i_pos);
+ if (is_hid)
+ MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
+ else
+ MSDOS_I(old_inode)->i_attrs &= ~ATTR_HIDDEN;
+ if (IS_DIRSYNC(new_dir)) {
+ err = fat_sync_inode(old_inode);
+ if (err)
+ goto error_inode;
+ } else
+ mark_inode_dirty(old_inode);
+
+ if (update_dotdot) {
+ int start = MSDOS_I(new_dir)->i_logstart;
+ dotdot_de->start = cpu_to_le16(start);
+ dotdot_de->starthi = cpu_to_le16(start >> 16);
+ mark_buffer_dirty(dotdot_bh);
+ if (IS_DIRSYNC(new_dir)) {
+ err = sync_dirty_buffer(dotdot_bh);
+ if (err)
+ goto error_dotdot;
+ }
+ drop_nlink(old_dir);
+ if (!new_inode)
+ inc_nlink(new_dir);
+ }
+
+ err = fat_remove_entries(old_dir, &old_sinfo); /* and releases bh */
+ old_sinfo.bh = NULL;
+ if (err)
+ goto error_dotdot;
+ old_dir->i_version++;
+ old_dir->i_ctime = old_dir->i_mtime = ts;
+ if (IS_DIRSYNC(old_dir))
+ (void)fat_sync_inode(old_dir);
+ else
+ mark_inode_dirty(old_dir);
+
+ if (new_inode) {
+ drop_nlink(new_inode);
+ if (is_dir)
+ drop_nlink(new_inode);
+ new_inode->i_ctime = ts;
+ }
+out:
+ brelse(sinfo.bh);
+ brelse(dotdot_bh);
+ brelse(old_sinfo.bh);
+ return err;
+
+error_dotdot:
+ /* data cluster is shared, serious corruption */
+ corrupt = 1;
+
+ if (update_dotdot) {
+ int start = MSDOS_I(old_dir)->i_logstart;
+ dotdot_de->start = cpu_to_le16(start);
+ dotdot_de->starthi = cpu_to_le16(start >> 16);
+ mark_buffer_dirty(dotdot_bh);
+ corrupt |= sync_dirty_buffer(dotdot_bh);
+ }
+error_inode:
+ fat_detach(old_inode);
+ fat_attach(old_inode, old_sinfo.i_pos);
+ MSDOS_I(old_inode)->i_attrs = old_attrs;
+ if (new_inode) {
+ fat_attach(new_inode, new_i_pos);
+ if (corrupt)
+ corrupt |= fat_sync_inode(new_inode);
+ } else {
+ /*
+ * If new entry was not sharing the data cluster, it
+ * shouldn't be serious corruption.
+ */
+ int err2 = fat_remove_entries(new_dir, &sinfo);
+ if (corrupt)
+ corrupt |= err2;
+ sinfo.bh = NULL;
+ }
+ if (corrupt < 0) {
+ fat_fs_panic(new_dir->i_sb,
+ "%s: Filesystem corrupted (i_pos %lld)",
+ __func__, sinfo.i_pos);
+ }
+ goto out;
+}
+
+/***** Rename, a wrapper for rename_same_dir & rename_diff_dir */
+static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ struct super_block *sb = old_dir->i_sb;
+ unsigned char old_msdos_name[MSDOS_NAME], new_msdos_name[MSDOS_NAME];
+ int err, is_hid;
+
+ lock_super(sb);
+
+ err = msdos_format_name(old_dentry->d_name.name,
+ old_dentry->d_name.len, old_msdos_name,
+ &MSDOS_SB(old_dir->i_sb)->options);
+ if (err)
+ goto out;
+ err = msdos_format_name(new_dentry->d_name.name,
+ new_dentry->d_name.len, new_msdos_name,
+ &MSDOS_SB(new_dir->i_sb)->options);
+ if (err)
+ goto out;
+
+ is_hid =
+ (new_dentry->d_name.name[0] == '.') && (new_msdos_name[0] != '.');
+
+ err = do_msdos_rename(old_dir, old_msdos_name, old_dentry,
+ new_dir, new_msdos_name, new_dentry, is_hid);
+out:
+ unlock_super(sb);
+ if (!err)
+ err = fat_flush_inodes(sb, old_dir, new_dir);
+ return err;
+}
+
+static const struct inode_operations msdos_dir_inode_operations = {
+ .create = msdos_create,
+ .lookup = msdos_lookup,
+ .unlink = msdos_unlink,
+ .mkdir = msdos_mkdir,
+ .rmdir = msdos_rmdir,
+ .rename = msdos_rename,
+ .setattr = fat_setattr,
+ .getattr = fat_getattr,
+};
+
+static int msdos_fill_super(struct super_block *sb, void *data, int silent)
+{
+ int res;
+
+ res = fat_fill_super(sb, data, silent, &msdos_dir_inode_operations, 0);
+ if (res)
+ return res;
+
+ sb->s_flags |= MS_NOATIME;
+ sb->s_root->d_op = &msdos_dentry_operations;
+ return 0;
+}
+
+static int msdos_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name,
+ void *data, struct vfsmount *mnt)
+{
+ return get_sb_bdev(fs_type, flags, dev_name, data, msdos_fill_super,
+ mnt);
+}
+
+static struct file_system_type msdos_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "msdos",
+ .get_sb = msdos_get_sb,
+ .kill_sb = kill_block_super,
+ .fs_flags = FS_REQUIRES_DEV,
+};
+
+static int __init init_msdos_fs(void)
+{
+ return register_filesystem(&msdos_fs_type);
+}
+
+static void __exit exit_msdos_fs(void)
+{
+ unregister_filesystem(&msdos_fs_type);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Werner Almesberger");
+MODULE_DESCRIPTION("MS-DOS filesystem support");
+
+module_init(init_msdos_fs)
+module_exit(exit_msdos_fs)
--- /dev/null
+/*
+ * linux/fs/vfat/namei.c
+ *
+ * Written 1992,1993 by Werner Almesberger
+ *
+ * Windows95/Windows NT compatible extended MSDOS filesystem
+ * by Gordon Chaffee Copyright (C) 1995. Send bug reports for the
+ * VFAT filesystem to <chaffee@cs.berkeley.edu>. Specify
+ * what file operation caused you trouble and if you can duplicate
+ * the problem, send a script that demonstrates it.
+ *
+ * Short name translation 1999, 2001 by Wolfram Pienkoss <wp@bszh.de>
+ *
+ * Support Multibyte characters and cleanup by
+ * OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/ctype.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/buffer_head.h>
+#include <linux/namei.h>
+#include "fat.h"
+
+/*
+ * If new entry was created in the parent, it could create the 8.3
+ * alias (the shortname of logname). So, the parent may have the
+ * negative-dentry which matches the created 8.3 alias.
+ *
+ * If it happened, the negative dentry isn't actually negative
+ * anymore. So, drop it.
+ */
+static int vfat_revalidate_shortname(struct dentry *dentry)
+{
+ int ret = 1;
+ spin_lock(&dentry->d_lock);
+ if (dentry->d_time != dentry->d_parent->d_inode->i_version)
+ ret = 0;
+ spin_unlock(&dentry->d_lock);
+ return ret;
+}
+
+static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+ /* This is not negative dentry. Always valid. */
+ if (dentry->d_inode)
+ return 1;
+ return vfat_revalidate_shortname(dentry);
+}
+
+static int vfat_revalidate_ci(struct dentry *dentry, struct nameidata *nd)
+{
+ /*
+ * This is not negative dentry. Always valid.
+ *
+ * Note, rename() to existing directory entry will have ->d_inode,
+ * and will use existing name which isn't specified name by user.
+ *
+ * We may be able to drop this positive dentry here. But dropping
+ * positive dentry isn't good idea. So it's unsupported like
+ * rename("filename", "FILENAME") for now.
+ */
+ if (dentry->d_inode)
+ return 1;
+
+ /*
+ * This may be nfsd (or something), anyway, we can't see the
+ * intent of this. So, since this can be for creation, drop it.
+ */
+ if (!nd)
+ return 0;
+
+ /*
+ * Drop the negative dentry, in order to make sure to use the
+ * case sensitive name which is specified by user if this is
+ * for creation.
+ */
+ if (!(nd->flags & (LOOKUP_CONTINUE | LOOKUP_PARENT))) {
+ if (nd->flags & LOOKUP_CREATE)
+ return 0;
+ }
+
+ return vfat_revalidate_shortname(dentry);
+}
+
+/* returns the length of a struct qstr, ignoring trailing dots */
+static unsigned int vfat_striptail_len(struct qstr *qstr)
+{
+ unsigned int len = qstr->len;
+
+ while (len && qstr->name[len - 1] == '.')
+ len--;
+ return len;
+}
+
+/*
+ * Compute the hash for the vfat name corresponding to the dentry.
+ * Note: if the name is invalid, we leave the hash code unchanged so
+ * that the existing dentry can be used. The vfat fs routines will
+ * return ENOENT or EINVAL as appropriate.
+ */
+static int vfat_hash(struct dentry *dentry, struct qstr *qstr)
+{
+ qstr->hash = full_name_hash(qstr->name, vfat_striptail_len(qstr));
+ return 0;
+}
+
+/*
+ * Compute the hash for the vfat name corresponding to the dentry.
+ * Note: if the name is invalid, we leave the hash code unchanged so
+ * that the existing dentry can be used. The vfat fs routines will
+ * return ENOENT or EINVAL as appropriate.
+ */
+static int vfat_hashi(struct dentry *dentry, struct qstr *qstr)
+{
+ struct nls_table *t = MSDOS_SB(dentry->d_inode->i_sb)->nls_io;
+ const unsigned char *name;
+ unsigned int len;
+ unsigned long hash;
+
+ name = qstr->name;
+ len = vfat_striptail_len(qstr);
+
+ hash = init_name_hash();
+ while (len--)
+ hash = partial_name_hash(nls_tolower(t, *name++), hash);
+ qstr->hash = end_name_hash(hash);
+
+ return 0;
+}
+
+/*
+ * Case insensitive compare of two vfat names.
+ */
+static int vfat_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+ struct nls_table *t = MSDOS_SB(dentry->d_inode->i_sb)->nls_io;
+ unsigned int alen, blen;
+
+ /* A filename cannot end in '.' or we treat it like it has none */
+ alen = vfat_striptail_len(a);
+ blen = vfat_striptail_len(b);
+ if (alen == blen) {
+ if (nls_strnicmp(t, a->name, b->name, alen) == 0)
+ return 0;
+ }
+ return 1;
+}
+
+/*
+ * Case sensitive compare of two vfat names.
+ */
+static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
+{
+ unsigned int alen, blen;
+
+ /* A filename cannot end in '.' or we treat it like it has none */
+ alen = vfat_striptail_len(a);
+ blen = vfat_striptail_len(b);
+ if (alen == blen) {
+ if (strncmp(a->name, b->name, alen) == 0)
+ return 0;
+ }
+ return 1;
+}
+
+static struct dentry_operations vfat_ci_dentry_ops = {
+ .d_revalidate = vfat_revalidate_ci,
+ .d_hash = vfat_hashi,
+ .d_compare = vfat_cmpi,
+};
+
+static struct dentry_operations vfat_dentry_ops = {
+ .d_revalidate = vfat_revalidate,
+ .d_hash = vfat_hash,
+ .d_compare = vfat_cmp,
+};
+
+/* Characters that are undesirable in an MS-DOS file name */
+
+static inline wchar_t vfat_bad_char(wchar_t w)
+{
+ return (w < 0x0020)
+ || (w == '*') || (w == '?') || (w == '<') || (w == '>')
+ || (w == '|') || (w == '"') || (w == ':') || (w == '/')
+ || (w == '\\');
+}
+
+static inline wchar_t vfat_replace_char(wchar_t w)
+{
+ return (w == '[') || (w == ']') || (w == ';') || (w == ',')
+ || (w == '+') || (w == '=');
+}
+
+static wchar_t vfat_skip_char(wchar_t w)
+{
+ return (w == '.') || (w == ' ');
+}
+
+static inline int vfat_is_used_badchars(const wchar_t *s, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ if (vfat_bad_char(s[i]))
+ return -EINVAL;
+
+ if (s[i - 1] == ' ') /* last character cannot be space */
+ return -EINVAL;
+
+ return 0;
+}
+
+static int vfat_find_form(struct inode *dir, unsigned char *name)
+{
+ struct fat_slot_info sinfo;
+ int err = fat_scan(dir, name, &sinfo);
+ if (err)
+ return -ENOENT;
+ brelse(sinfo.bh);
+ return 0;
+}
+
+/*
+ * 1) Valid characters for the 8.3 format alias are any combination of
+ * letters, uppercase alphabets, digits, any of the
+ * following special characters:
+ * $ % ' ` - @ { } ~ ! # ( ) & _ ^
+ * In this case Longfilename is not stored in disk.
+ *
+ * WinNT's Extension:
+ * File name and extension name is contain uppercase/lowercase
+ * only. And it is expressed by CASE_LOWER_BASE and CASE_LOWER_EXT.
+ *
+ * 2) File name is 8.3 format, but it contain the uppercase and
+ * lowercase char, muliti bytes char, etc. In this case numtail is not
+ * added, but Longfilename is stored.
+ *
+ * 3) When the one except for the above, or the following special
+ * character are contained:
+ * . [ ] ; , + =
+ * numtail is added, and Longfilename must be stored in disk .
+ */
+struct shortname_info {
+ unsigned char lower:1,
+ upper:1,
+ valid:1;
+};
+#define INIT_SHORTNAME_INFO(x) do { \
+ (x)->lower = 1; \
+ (x)->upper = 1; \
+ (x)->valid = 1; \
+} while (0)
+
+static inline int to_shortname_char(struct nls_table *nls,
+ unsigned char *buf, int buf_size,
+ wchar_t *src, struct shortname_info *info)
+{
+ int len;
+
+ if (vfat_skip_char(*src)) {
+ info->valid = 0;
+ return 0;
+ }
+ if (vfat_replace_char(*src)) {
+ info->valid = 0;
+ buf[0] = '_';
+ return 1;
+ }
+
+ len = nls->uni2char(*src, buf, buf_size);
+ if (len <= 0) {
+ info->valid = 0;
+ buf[0] = '_';
+ len = 1;
+ } else if (len == 1) {
+ unsigned char prev = buf[0];
+
+ if (buf[0] >= 0x7F) {
+ info->lower = 0;
+ info->upper = 0;
+ }
+
+ buf[0] = nls_toupper(nls, buf[0]);
+ if (isalpha(buf[0])) {
+ if (buf[0] == prev)
+ info->lower = 0;
+ else
+ info->upper = 0;
+ }
+ } else {
+ info->lower = 0;
+ info->upper = 0;
+ }
+
+ return len;
+}
+
+/*
+ * Given a valid longname, create a unique shortname. Make sure the
+ * shortname does not exist
+ * Returns negative number on error, 0 for a normal
+ * return, and 1 for valid shortname
+ */
+static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,
+ wchar_t *uname, int ulen,
+ unsigned char *name_res, unsigned char *lcase)
+{
+ struct fat_mount_options *opts = &MSDOS_SB(dir->i_sb)->options;
+ wchar_t *ip, *ext_start, *end, *name_start;
+ unsigned char base[9], ext[4], buf[8], *p;
+ unsigned char charbuf[NLS_MAX_CHARSET_SIZE];
+ int chl, chi;
+ int sz = 0, extlen, baselen, i, numtail_baselen, numtail2_baselen;
+ int is_shortname;
+ struct shortname_info base_info, ext_info;
+
+ is_shortname = 1;
+ INIT_SHORTNAME_INFO(&base_info);
+ INIT_SHORTNAME_INFO(&ext_info);
+
+ /* Now, we need to create a shortname from the long name */
+ ext_start = end = &uname[ulen];
+ while (--ext_start >= uname) {
+ if (*ext_start == 0x002E) { /* is `.' */
+ if (ext_start == end - 1) {
+ sz = ulen;
+ ext_start = NULL;
+ }
+ break;
+ }
+ }
+
+ if (ext_start == uname - 1) {
+ sz = ulen;
+ ext_start = NULL;
+ } else if (ext_start) {
+ /*
+ * Names which start with a dot could be just
+ * an extension eg. "...test". In this case Win95
+ * uses the extension as the name and sets no extension.
+ */
+ name_start = &uname[0];
+ while (name_start < ext_start) {
+ if (!vfat_skip_char(*name_start))
+ break;
+ name_start++;
+ }
+ if (name_start != ext_start) {
+ sz = ext_start - uname;
+ ext_start++;
+ } else {
+ sz = ulen;
+ ext_start = NULL;
+ }
+ }
+
+ numtail_baselen = 6;
+ numtail2_baselen = 2;
+ for (baselen = i = 0, p = base, ip = uname; i < sz; i++, ip++) {
+ chl = to_shortname_char(nls, charbuf, sizeof(charbuf),
+ ip, &base_info);
+ if (chl == 0)
+ continue;
+
+ if (baselen < 2 && (baselen + chl) > 2)
+ numtail2_baselen = baselen;
+ if (baselen < 6 && (baselen + chl) > 6)
+ numtail_baselen = baselen;
+ for (chi = 0; chi < chl; chi++) {
+ *p++ = charbuf[chi];
+ baselen++;
+ if (baselen >= 8)
+ break;
+ }
+ if (baselen >= 8) {
+ if ((chi < chl - 1) || (ip + 1) - uname < sz)
+ is_shortname = 0;
+ break;
+ }
+ }
+ if (baselen == 0) {
+ return -EINVAL;
+ }
+
+ extlen = 0;
+ if (ext_start) {
+ for (p = ext, ip = ext_start; extlen < 3 && ip < end; ip++) {
+ chl = to_shortname_char(nls, charbuf, sizeof(charbuf),
+ ip, &ext_info);
+ if (chl == 0)
+ continue;
+
+ if ((extlen + chl) > 3) {
+ is_shortname = 0;
+ break;
+ }
+ for (chi = 0; chi < chl; chi++) {
+ *p++ = charbuf[chi];
+ extlen++;
+ }
+ if (extlen >= 3) {
+ if (ip + 1 != end)
+ is_shortname = 0;
+ break;
+ }
+ }
+ }
+ ext[extlen] = '\0';
+ base[baselen] = '\0';
+
+ /* Yes, it can happen. ".\xe5" would do it. */
+ if (base[0] == DELETED_FLAG)
+ base[0] = 0x05;
+
+ /* OK, at this point we know that base is not longer than 8 symbols,
+ * ext is not longer than 3, base is nonempty, both don't contain
+ * any bad symbols (lowercase transformed to uppercase).
+ */
+
+ memset(name_res, ' ', MSDOS_NAME);
+ memcpy(name_res, base, baselen);
+ memcpy(name_res + 8, ext, extlen);
+ *lcase = 0;
+ if (is_shortname && base_info.valid && ext_info.valid) {
+ if (vfat_find_form(dir, name_res) == 0)
+ return -EEXIST;
+
+ if (opts->shortname & VFAT_SFN_CREATE_WIN95) {
+ return (base_info.upper && ext_info.upper);
+ } else if (opts->shortname & VFAT_SFN_CREATE_WINNT) {
+ if ((base_info.upper || base_info.lower) &&
+ (ext_info.upper || ext_info.lower)) {
+ if (!base_info.upper && base_info.lower)
+ *lcase |= CASE_LOWER_BASE;
+ if (!ext_info.upper && ext_info.lower)
+ *lcase |= CASE_LOWER_EXT;
+ return 1;
+ }
+ return 0;
+ } else {
+ BUG();
+ }
+ }
+
+ if (opts->numtail == 0)
+ if (vfat_find_form(dir, name_res) < 0)
+ return 0;
+
+ /*
+ * Try to find a unique extension. This used to
+ * iterate through all possibilities sequentially,
+ * but that gave extremely bad performance. Windows
+ * only tries a few cases before using random
+ * values for part of the base.
+ */
+
+ if (baselen > 6) {
+ baselen = numtail_baselen;
+ name_res[7] = ' ';
+ }
+ name_res[baselen] = '~';
+ for (i = 1; i < 10; i++) {
+ name_res[baselen + 1] = i + '0';
+ if (vfat_find_form(dir, name_res) < 0)
+ return 0;
+ }
+
+ i = jiffies & 0xffff;
+ sz = (jiffies >> 16) & 0x7;
+ if (baselen > 2) {
+ baselen = numtail2_baselen;
+ name_res[7] = ' ';
+ }
+ name_res[baselen + 4] = '~';
+ name_res[baselen + 5] = '1' + sz;
+ while (1) {
+ sprintf(buf, "%04X", i);
+ memcpy(&name_res[baselen], buf, 4);
+ if (vfat_find_form(dir, name_res) < 0)
+ break;
+ i -= 11;
+ }
+ return 0;
+}
+
+/* Translate a string, including coded sequences into Unicode */
+static int
+xlate_to_uni(const unsigned char *name, int len, unsigned char *outname,
+ int *longlen, int *outlen, int escape, int utf8,
+ struct nls_table *nls)
+{
+ const unsigned char *ip;
+ unsigned char nc;
+ unsigned char *op;
+ unsigned int ec;
+ int i, k, fill;
+ int charlen;
+
+ if (utf8) {
+ int name_len = strlen(name);
+
+ *outlen = utf8_mbstowcs((wchar_t *)outname, name, PATH_MAX);
+
+ /*
+ * We stripped '.'s before and set len appropriately,
+ * but utf8_mbstowcs doesn't care about len
+ */
+ *outlen -= (name_len - len);
+
+ if (*outlen > 255)
+ return -ENAMETOOLONG;
+
+ op = &outname[*outlen * sizeof(wchar_t)];
+ } else {
+ if (nls) {
+ for (i = 0, ip = name, op = outname, *outlen = 0;
+ i < len && *outlen <= 255;
+ *outlen += 1)
+ {
+ if (escape && (*ip == ':')) {
+ if (i > len - 5)
+ return -EINVAL;
+ ec = 0;
+ for (k = 1; k < 5; k++) {
+ nc = ip[k];
+ ec <<= 4;
+ if (nc >= '0' && nc <= '9') {
+ ec |= nc - '0';
+ continue;
+ }
+ if (nc >= 'a' && nc <= 'f') {
+ ec |= nc - ('a' - 10);
+ continue;
+ }
+ if (nc >= 'A' && nc <= 'F') {
+ ec |= nc - ('A' - 10);
+ continue;
+ }
+ return -EINVAL;
+ }
+ *op++ = ec & 0xFF;
+ *op++ = ec >> 8;
+ ip += 5;
+ i += 5;
+ } else {
+ if ((charlen = nls->char2uni(ip, len - i, (wchar_t *)op)) < 0)
+ return -EINVAL;
+ ip += charlen;
+ i += charlen;
+ op += 2;
+ }
+ }
+ if (i < len)
+ return -ENAMETOOLONG;
+ } else {
+ for (i = 0, ip = name, op = outname, *outlen = 0;
+ i < len && *outlen <= 255;
+ i++, *outlen += 1)
+ {
+ *op++ = *ip++;
+ *op++ = 0;
+ }
+ if (i < len)
+ return -ENAMETOOLONG;
+ }
+ }
+
+ *longlen = *outlen;
+ if (*outlen % 13) {
+ *op++ = 0;
+ *op++ = 0;
+ *outlen += 1;
+ if (*outlen % 13) {
+ fill = 13 - (*outlen % 13);
+ for (i = 0; i < fill; i++) {
+ *op++ = 0xff;
+ *op++ = 0xff;
+ }
+ *outlen += fill;
+ }
+ }
+
+ return 0;
+}
+
+static int vfat_build_slots(struct inode *dir, const unsigned char *name,
+ int len, int is_dir, int cluster,
+ struct timespec *ts,
+ struct msdos_dir_slot *slots, int *nr_slots)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
+ struct fat_mount_options *opts = &sbi->options;
+ struct msdos_dir_slot *ps;
+ struct msdos_dir_entry *de;
+ unsigned char cksum, lcase;
+ unsigned char msdos_name[MSDOS_NAME];
+ wchar_t *uname;
+ __le16 time, date;
+ u8 time_cs;
+ int err, ulen, usize, i;
+ loff_t offset;
+
+ *nr_slots = 0;
+
+ uname = __getname();
+ if (!uname)
+ return -ENOMEM;
+
+ err = xlate_to_uni(name, len, (unsigned char *)uname, &ulen, &usize,
+ opts->unicode_xlate, opts->utf8, sbi->nls_io);
+ if (err)
+ goto out_free;
+
+ err = vfat_is_used_badchars(uname, ulen);
+ if (err)
+ goto out_free;
+
+ err = vfat_create_shortname(dir, sbi->nls_disk, uname, ulen,
+ msdos_name, &lcase);
+ if (err < 0)
+ goto out_free;
+ else if (err == 1) {
+ de = (struct msdos_dir_entry *)slots;
+ err = 0;
+ goto shortname;
+ }
+
+ /* build the entry of long file name */
+ cksum = fat_checksum(msdos_name);
+
+ *nr_slots = usize / 13;
+ for (ps = slots, i = *nr_slots; i > 0; i--, ps++) {
+ ps->id = i;
+ ps->attr = ATTR_EXT;
+ ps->reserved = 0;
+ ps->alias_checksum = cksum;
+ ps->start = 0;
+ offset = (i - 1) * 13;
+ fatwchar_to16(ps->name0_4, uname + offset, 5);
+ fatwchar_to16(ps->name5_10, uname + offset + 5, 6);
+ fatwchar_to16(ps->name11_12, uname + offset + 11, 2);
+ }
+ slots[0].id |= 0x40;
+ de = (struct msdos_dir_entry *)ps;
+
+shortname:
+ /* build the entry of 8.3 alias name */
+ (*nr_slots)++;
+ memcpy(de->name, msdos_name, MSDOS_NAME);
+ de->attr = is_dir ? ATTR_DIR : ATTR_ARCH;
+ de->lcase = lcase;
+ fat_time_unix2fat(sbi, ts, &time, &date, &time_cs);
+ de->time = de->ctime = time;
+ de->date = de->cdate = de->adate = date;
+ de->ctime_cs = time_cs;
+ de->start = cpu_to_le16(cluster);
+ de->starthi = cpu_to_le16(cluster >> 16);
+ de->size = 0;
+out_free:
+ __putname(uname);
+ return err;
+}
+
+static int vfat_add_entry(struct inode *dir, struct qstr *qname, int is_dir,
+ int cluster, struct timespec *ts,
+ struct fat_slot_info *sinfo)
+{
+ struct msdos_dir_slot *slots;
+ unsigned int len;
+ int err, nr_slots;
+
+ len = vfat_striptail_len(qname);
+ if (len == 0)
+ return -ENOENT;
+
+ slots = kmalloc(sizeof(*slots) * MSDOS_SLOTS, GFP_NOFS);
+ if (slots == NULL)
+ return -ENOMEM;
+
+ err = vfat_build_slots(dir, qname->name, len, is_dir, cluster, ts,
+ slots, &nr_slots);
+ if (err)
+ goto cleanup;
+
+ err = fat_add_entries(dir, slots, nr_slots, sinfo);
+ if (err)
+ goto cleanup;
+
+ /* update timestamp */
+ dir->i_ctime = dir->i_mtime = dir->i_atime = *ts;
+ if (IS_DIRSYNC(dir))
+ (void)fat_sync_inode(dir);
+ else
+ mark_inode_dirty(dir);
+cleanup:
+ kfree(slots);
+ return err;
+}
+
+static int vfat_find(struct inode *dir, struct qstr *qname,
+ struct fat_slot_info *sinfo)
+{
+ unsigned int len = vfat_striptail_len(qname);
+ if (len == 0)
+ return -ENOENT;
+ return fat_search_long(dir, qname->name, len, sinfo);
+}
+
+static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
+ struct nameidata *nd)
+{
+ struct super_block *sb = dir->i_sb;
+ struct fat_slot_info sinfo;
+ struct inode *inode;
+ struct dentry *alias;
+ int err;
+
+ lock_super(sb);
+
+ err = vfat_find(dir, &dentry->d_name, &sinfo);
+ if (err) {
+ if (err == -ENOENT) {
+ inode = NULL;
+ goto out;
+ }
+ goto error;
+ }
+
+ inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
+ brelse(sinfo.bh);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto error;
+ }
+
+ alias = d_find_alias(inode);
+ if (alias && !(alias->d_flags & DCACHE_DISCONNECTED)) {
+ /*
+ * This inode has non DCACHE_DISCONNECTED dentry. This
+ * means, the user did ->lookup() by an another name
+ * (longname vs 8.3 alias of it) in past.
+ *
+ * Switch to new one for reason of locality if possible.
+ */
+ BUG_ON(d_unhashed(alias));
+ if (!S_ISDIR(inode->i_mode))
+ d_move(alias, dentry);
+ iput(inode);
+ unlock_super(sb);
+ return alias;
+ }
+out:
+ unlock_super(sb);
+ dentry->d_op = sb->s_root->d_op;
+ dentry->d_time = dentry->d_parent->d_inode->i_version;
+ dentry = d_splice_alias(inode, dentry);
+ if (dentry) {
+ dentry->d_op = sb->s_root->d_op;
+ dentry->d_time = dentry->d_parent->d_inode->i_version;
+ }
+ return dentry;
+
+error:
+ unlock_super(sb);
+ return ERR_PTR(err);
+}
+
+static int vfat_create(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd)
+{
+ struct super_block *sb = dir->i_sb;
+ struct inode *inode;
+ struct fat_slot_info sinfo;
+ struct timespec ts;
+ int err;
+
+ lock_super(sb);
+
+ ts = CURRENT_TIME_SEC;
+ err = vfat_add_entry(dir, &dentry->d_name, 0, 0, &ts, &sinfo);
+ if (err)
+ goto out;
+ dir->i_version++;
+
+ inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
+ brelse(sinfo.bh);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
+ inode->i_version++;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
+ /* timestamp is already written, so mark_inode_dirty() is unneeded. */
+
+ dentry->d_time = dentry->d_parent->d_inode->i_version;
+ d_instantiate(dentry, inode);
+out:
+ unlock_super(sb);
+ return err;
+}
+
+static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ struct super_block *sb = dir->i_sb;
+ struct fat_slot_info sinfo;
+ int err;
+
+ lock_super(sb);
+
+ err = fat_dir_empty(inode);
+ if (err)
+ goto out;
+ err = vfat_find(dir, &dentry->d_name, &sinfo);
+ if (err)
+ goto out;
+
+ err = fat_remove_entries(dir, &sinfo); /* and releases bh */
+ if (err)
+ goto out;
+ drop_nlink(dir);
+
+ clear_nlink(inode);
+ inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
+ fat_detach(inode);
+out:
+ unlock_super(sb);
+
+ return err;
+}
+
+static int vfat_unlink(struct inode *dir, struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ struct super_block *sb = dir->i_sb;
+ struct fat_slot_info sinfo;
+ int err;
+
+ lock_super(sb);
+
+ err = vfat_find(dir, &dentry->d_name, &sinfo);
+ if (err)
+ goto out;
+
+ err = fat_remove_entries(dir, &sinfo); /* and releases bh */
+ if (err)
+ goto out;
+ clear_nlink(inode);
+ inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
+ fat_detach(inode);
+out:
+ unlock_super(sb);
+
+ return err;
+}
+
+static int vfat_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+ struct super_block *sb = dir->i_sb;
+ struct inode *inode;
+ struct fat_slot_info sinfo;
+ struct timespec ts;
+ int err, cluster;
+
+ lock_super(sb);
+
+ ts = CURRENT_TIME_SEC;
+ cluster = fat_alloc_new_dir(dir, &ts);
+ if (cluster < 0) {
+ err = cluster;
+ goto out;
+ }
+ err = vfat_add_entry(dir, &dentry->d_name, 1, cluster, &ts, &sinfo);
+ if (err)
+ goto out_free;
+ dir->i_version++;
+ inc_nlink(dir);
+
+ inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
+ brelse(sinfo.bh);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ /* the directory was completed, just return a error */
+ goto out;
+ }
+ inode->i_version++;
+ inode->i_nlink = 2;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
+ /* timestamp is already written, so mark_inode_dirty() is unneeded. */
+
+ dentry->d_time = dentry->d_parent->d_inode->i_version;
+ d_instantiate(dentry, inode);
+
+ unlock_super(sb);
+ return 0;
+
+out_free:
+ fat_free_clusters(dir, cluster);
+out:
+ unlock_super(sb);
+ return err;
+}
+
+static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ struct buffer_head *dotdot_bh;
+ struct msdos_dir_entry *dotdot_de;
+ struct inode *old_inode, *new_inode;
+ struct fat_slot_info old_sinfo, sinfo;
+ struct timespec ts;
+ loff_t dotdot_i_pos, new_i_pos;
+ int err, is_dir, update_dotdot, corrupt = 0;
+ struct super_block *sb = old_dir->i_sb;
+
+ old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
+ old_inode = old_dentry->d_inode;
+ new_inode = new_dentry->d_inode;
+ lock_super(sb);
+ err = vfat_find(old_dir, &old_dentry->d_name, &old_sinfo);
+ if (err)
+ goto out;
+
+ is_dir = S_ISDIR(old_inode->i_mode);
+ update_dotdot = (is_dir && old_dir != new_dir);
+ if (update_dotdot) {
+ if (fat_get_dotdot_entry(old_inode, &dotdot_bh, &dotdot_de,
+ &dotdot_i_pos) < 0) {
+ err = -EIO;
+ goto out;
+ }
+ }
+
+ ts = CURRENT_TIME_SEC;
+ if (new_inode) {
+ if (is_dir) {
+ err = fat_dir_empty(new_inode);
+ if (err)
+ goto out;
+ }
+ new_i_pos = MSDOS_I(new_inode)->i_pos;
+ fat_detach(new_inode);
+ } else {
+ err = vfat_add_entry(new_dir, &new_dentry->d_name, is_dir, 0,
+ &ts, &sinfo);
+ if (err)
+ goto out;
+ new_i_pos = sinfo.i_pos;
+ }
+ new_dir->i_version++;
+
+ fat_detach(old_inode);
+ fat_attach(old_inode, new_i_pos);
+ if (IS_DIRSYNC(new_dir)) {
+ err = fat_sync_inode(old_inode);
+ if (err)
+ goto error_inode;
+ } else
+ mark_inode_dirty(old_inode);
+
+ if (update_dotdot) {
+ int start = MSDOS_I(new_dir)->i_logstart;
+ dotdot_de->start = cpu_to_le16(start);
+ dotdot_de->starthi = cpu_to_le16(start >> 16);
+ mark_buffer_dirty(dotdot_bh);
+ if (IS_DIRSYNC(new_dir)) {
+ err = sync_dirty_buffer(dotdot_bh);
+ if (err)
+ goto error_dotdot;
+ }
+ drop_nlink(old_dir);
+ if (!new_inode)
+ inc_nlink(new_dir);
+ }
+
+ err = fat_remove_entries(old_dir, &old_sinfo); /* and releases bh */
+ old_sinfo.bh = NULL;
+ if (err)
+ goto error_dotdot;
+ old_dir->i_version++;
+ old_dir->i_ctime = old_dir->i_mtime = ts;
+ if (IS_DIRSYNC(old_dir))
+ (void)fat_sync_inode(old_dir);
+ else
+ mark_inode_dirty(old_dir);
+
+ if (new_inode) {
+ drop_nlink(new_inode);
+ if (is_dir)
+ drop_nlink(new_inode);
+ new_inode->i_ctime = ts;
+ }
+out:
+ brelse(sinfo.bh);
+ brelse(dotdot_bh);
+ brelse(old_sinfo.bh);
+ unlock_super(sb);
+
+ return err;
+
+error_dotdot:
+ /* data cluster is shared, serious corruption */
+ corrupt = 1;
+
+ if (update_dotdot) {
+ int start = MSDOS_I(old_dir)->i_logstart;
+ dotdot_de->start = cpu_to_le16(start);
+ dotdot_de->starthi = cpu_to_le16(start >> 16);
+ mark_buffer_dirty(dotdot_bh);
+ corrupt |= sync_dirty_buffer(dotdot_bh);
+ }
+error_inode:
+ fat_detach(old_inode);
+ fat_attach(old_inode, old_sinfo.i_pos);
+ if (new_inode) {
+ fat_attach(new_inode, new_i_pos);
+ if (corrupt)
+ corrupt |= fat_sync_inode(new_inode);
+ } else {
+ /*
+ * If new entry was not sharing the data cluster, it
+ * shouldn't be serious corruption.
+ */
+ int err2 = fat_remove_entries(new_dir, &sinfo);
+ if (corrupt)
+ corrupt |= err2;
+ sinfo.bh = NULL;
+ }
+ if (corrupt < 0) {
+ fat_fs_panic(new_dir->i_sb,
+ "%s: Filesystem corrupted (i_pos %lld)",
+ __func__, sinfo.i_pos);
+ }
+ goto out;
+}
+
+static const struct inode_operations vfat_dir_inode_operations = {
+ .create = vfat_create,
+ .lookup = vfat_lookup,
+ .unlink = vfat_unlink,
+ .mkdir = vfat_mkdir,
+ .rmdir = vfat_rmdir,
+ .rename = vfat_rename,
+ .setattr = fat_setattr,
+ .getattr = fat_getattr,
+};
+
+static int vfat_fill_super(struct super_block *sb, void *data, int silent)
+{
+ int res;
+
+ res = fat_fill_super(sb, data, silent, &vfat_dir_inode_operations, 1);
+ if (res)
+ return res;
+
+ if (MSDOS_SB(sb)->options.name_check != 's')
+ sb->s_root->d_op = &vfat_ci_dentry_ops;
+ else
+ sb->s_root->d_op = &vfat_dentry_ops;
+
+ return 0;
+}
+
+static int vfat_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name,
+ void *data, struct vfsmount *mnt)
+{
+ return get_sb_bdev(fs_type, flags, dev_name, data, vfat_fill_super,
+ mnt);
+}
+
+static struct file_system_type vfat_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "vfat",
+ .get_sb = vfat_get_sb,
+ .kill_sb = kill_block_super,
+ .fs_flags = FS_REQUIRES_DEV,
+};
+
+static int __init init_vfat_fs(void)
+{
+ return register_filesystem(&vfat_fs_type);
+}
+
+static void __exit exit_vfat_fs(void)
+{
+ unregister_filesystem(&vfat_fs_type);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("VFAT filesystem support");
+MODULE_AUTHOR("Gordon Chaffee");
+
+module_init(init_vfat_fs)
+module_exit(exit_vfat_fs)
*/
void __log_wait_for_space(journal_t *journal)
{
- int nblocks;
+ int nblocks, space_left;
assert_spin_locked(&journal->j_state_lock);
nblocks = jbd_space_needed(journal);
/*
* Test again, another process may have checkpointed while we
* were waiting for the checkpoint lock. If there are no
- * outstanding transactions there is nothing to checkpoint and
- * we can't make progress. Abort the journal in this case.
+ * transactions ready to be checkpointed, try to recover
+ * journal space by calling cleanup_journal_tail(), and if
+ * that doesn't work, by waiting for the currently committing
+ * transaction to complete. If there is absolutely no way
+ * to make progress, this is either a BUG or corrupted
+ * filesystem, so abort the journal and leave a stack
+ * trace for forensic evidence.
*/
spin_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
nblocks = jbd_space_needed(journal);
- if (__log_space_left(journal) < nblocks) {
+ space_left = __log_space_left(journal);
+ if (space_left < nblocks) {
int chkpt = journal->j_checkpoint_transactions != NULL;
+ tid_t tid = 0;
+ if (journal->j_committing_transaction)
+ tid = journal->j_committing_transaction->t_tid;
spin_unlock(&journal->j_list_lock);
spin_unlock(&journal->j_state_lock);
if (chkpt) {
log_do_checkpoint(journal);
+ } else if (cleanup_journal_tail(journal) == 0) {
+ /* We were able to recover space; yay! */
+ ;
+ } else if (tid) {
+ log_wait_commit(journal, tid);
} else {
- printk(KERN_ERR "%s: no transactions\n",
- __func__);
+ printk(KERN_ERR "%s: needed %d blocks and "
+ "only had %d space available\n",
+ __func__, nblocks, space_left);
+ printk(KERN_ERR "%s: no way to get more "
+ "journal space\n", __func__);
+ WARN_ON(1);
journal_abort(journal, 0);
}
-
spin_lock(&journal->j_state_lock);
} else {
spin_unlock(&journal->j_list_lock);
*/
void __jbd2_log_wait_for_space(journal_t *journal)
{
- int nblocks;
+ int nblocks, space_left;
assert_spin_locked(&journal->j_state_lock);
nblocks = jbd_space_needed(journal);
/*
* Test again, another process may have checkpointed while we
* were waiting for the checkpoint lock. If there are no
- * outstanding transactions there is nothing to checkpoint and
- * we can't make progress. Abort the journal in this case.
+ * transactions ready to be checkpointed, try to recover
+ * journal space by calling cleanup_journal_tail(), and if
+ * that doesn't work, by waiting for the currently committing
+ * transaction to complete. If there is absolutely no way
+ * to make progress, this is either a BUG or corrupted
+ * filesystem, so abort the journal and leave a stack
+ * trace for forensic evidence.
*/
spin_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
nblocks = jbd_space_needed(journal);
- if (__jbd2_log_space_left(journal) < nblocks) {
+ space_left = __jbd2_log_space_left(journal);
+ if (space_left < nblocks) {
int chkpt = journal->j_checkpoint_transactions != NULL;
+ tid_t tid = 0;
+ if (journal->j_committing_transaction)
+ tid = journal->j_committing_transaction->t_tid;
spin_unlock(&journal->j_list_lock);
spin_unlock(&journal->j_state_lock);
if (chkpt) {
jbd2_log_do_checkpoint(journal);
+ } else if (jbd2_cleanup_journal_tail(journal) == 0) {
+ /* We were able to recover space; yay! */
+ ;
+ } else if (tid) {
+ jbd2_log_wait_commit(journal, tid);
} else {
- printk(KERN_ERR "%s: no transactions\n",
- __func__);
+ printk(KERN_ERR "%s: needed %d blocks and "
+ "only had %d space available\n",
+ __func__, nblocks, space_left);
+ printk(KERN_ERR "%s: no way to get more "
+ "journal space in %s\n", __func__,
+ journal->j_devname);
+ WARN_ON(1);
jbd2_journal_abort(journal, 0);
}
-
spin_lock(&journal->j_state_lock);
} else {
spin_unlock(&journal->j_list_lock);
if (!journal->j_wbuf) {
printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
__func__);
+ jbd2_stats_proc_exit(journal);
kfree(journal);
return NULL;
}
if (err) {
printk(KERN_ERR "%s: Cannnot locate journal superblock\n",
__func__);
+ jbd2_stats_proc_exit(journal);
kfree(journal);
return NULL;
}
for (;;) {
allow_signal(SIGHUP);
again:
+ spin_lock(&c->erase_completion_lock);
if (!jffs2_thread_should_wake(c)) {
set_current_state (TASK_INTERRUPTIBLE);
+ spin_unlock(&c->erase_completion_lock);
D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread sleeping...\n"));
- /* Yes, there's a race here; we checked jffs2_thread_should_wake()
- before setting current->state to TASK_INTERRUPTIBLE. But it doesn't
- matter - We don't care if we miss a wakeup, because the GC thread
- is only an optimisation anyway. */
schedule();
- }
+ } else
+ spin_unlock(&c->erase_completion_lock);
+
/* This thread is purely an optimisation. But if it runs when
other things could be running, it actually makes things a
static void *lzo_mem;
static void *lzo_compress_buf;
-static DEFINE_MUTEX(deflate_mutex);
+static DEFINE_MUTEX(deflate_mutex); /* for lzo_mem and lzo_compress_buf */
static void free_workspace(void)
{
mutex_lock(&deflate_mutex);
ret = lzo1x_1_compress(data_in, *sourcelen, lzo_compress_buf, &compress_size, lzo_mem);
- mutex_unlock(&deflate_mutex);
-
if (ret != LZO_E_OK)
- return -1;
+ goto fail;
if (compress_size > *dstlen)
- return -1;
+ goto fail;
memcpy(cpage_out, lzo_compress_buf, compress_size);
- *dstlen = compress_size;
+ mutex_unlock(&deflate_mutex);
+ *dstlen = compress_size;
return 0;
+
+ fail:
+ mutex_unlock(&deflate_mutex);
+ return -1;
}
static int jffs2_lzo_decompress(unsigned char *data_in, unsigned char *cpage_out,
jffs2_sum_reset_collected(c->summary); /* reset collected summary */
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
/* adjust write buffer offset, else we get a non contiguous write bug */
if (!(c->wbuf_ofs % c->sector_size) && !c->wbuf_len)
c->wbuf_ofs = 0xffffffff;
+#endif
D1(printk(KERN_DEBUG "jffs2_find_nextblock(): new nextblock = 0x%08x\n", c->nextblock->offset));
+++ /dev/null
-#
-# Makefile for the Linux msdos filesystem routines.
-#
-
-obj-$(CONFIG_MSDOS_FS) += msdos.o
-
-msdos-y := namei.o
+++ /dev/null
-/*
- * linux/fs/msdos/namei.c
- *
- * Written 1992,1993 by Werner Almesberger
- * Hidden files 1995 by Albert Cahalan <albert@ccs.neu.edu> <adc@coe.neu.edu>
- * Rewritten for constant inumbers 1999 by Al Viro
- */
-
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/buffer_head.h>
-#include <linux/msdos_fs.h>
-#include <linux/smp_lock.h>
-
-/* Characters that are undesirable in an MS-DOS file name */
-static unsigned char bad_chars[] = "*?<>|\"";
-static unsigned char bad_if_strict[] = "+=,; ";
-
-/***** Formats an MS-DOS file name. Rejects invalid names. */
-static int msdos_format_name(const unsigned char *name, int len,
- unsigned char *res, struct fat_mount_options *opts)
- /*
- * name is the proposed name, len is its length, res is
- * the resulting name, opts->name_check is either (r)elaxed,
- * (n)ormal or (s)trict, opts->dotsOK allows dots at the
- * beginning of name (for hidden files)
- */
-{
- unsigned char *walk;
- unsigned char c;
- int space;
-
- if (name[0] == '.') { /* dotfile because . and .. already done */
- if (opts->dotsOK) {
- /* Get rid of dot - test for it elsewhere */
- name++;
- len--;
- } else
- return -EINVAL;
- }
- /*
- * disallow names that _really_ start with a dot
- */
- space = 1;
- c = 0;
- for (walk = res; len && walk - res < 8; walk++) {
- c = *name++;
- len--;
- if (opts->name_check != 'r' && strchr(bad_chars, c))
- return -EINVAL;
- if (opts->name_check == 's' && strchr(bad_if_strict, c))
- return -EINVAL;
- if (c >= 'A' && c <= 'Z' && opts->name_check == 's')
- return -EINVAL;
- if (c < ' ' || c == ':' || c == '\\')
- return -EINVAL;
- /*
- * 0xE5 is legal as a first character, but we must substitute
- * 0x05 because 0xE5 marks deleted files. Yes, DOS really
- * does this.
- * It seems that Microsoft hacked DOS to support non-US
- * characters after the 0xE5 character was already in use to
- * mark deleted files.
- */
- if ((res == walk) && (c == 0xE5))
- c = 0x05;
- if (c == '.')
- break;
- space = (c == ' ');
- *walk = (!opts->nocase && c >= 'a' && c <= 'z') ? c - 32 : c;
- }
- if (space)
- return -EINVAL;
- if (opts->name_check == 's' && len && c != '.') {
- c = *name++;
- len--;
- if (c != '.')
- return -EINVAL;
- }
- while (c != '.' && len--)
- c = *name++;
- if (c == '.') {
- while (walk - res < 8)
- *walk++ = ' ';
- while (len > 0 && walk - res < MSDOS_NAME) {
- c = *name++;
- len--;
- if (opts->name_check != 'r' && strchr(bad_chars, c))
- return -EINVAL;
- if (opts->name_check == 's' &&
- strchr(bad_if_strict, c))
- return -EINVAL;
- if (c < ' ' || c == ':' || c == '\\')
- return -EINVAL;
- if (c == '.') {
- if (opts->name_check == 's')
- return -EINVAL;
- break;
- }
- if (c >= 'A' && c <= 'Z' && opts->name_check == 's')
- return -EINVAL;
- space = c == ' ';
- if (!opts->nocase && c >= 'a' && c <= 'z')
- *walk++ = c - 32;
- else
- *walk++ = c;
- }
- if (space)
- return -EINVAL;
- if (opts->name_check == 's' && len)
- return -EINVAL;
- }
- while (walk - res < MSDOS_NAME)
- *walk++ = ' ';
-
- return 0;
-}
-
-/***** Locates a directory entry. Uses unformatted name. */
-static int msdos_find(struct inode *dir, const unsigned char *name, int len,
- struct fat_slot_info *sinfo)
-{
- struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
- unsigned char msdos_name[MSDOS_NAME];
- int err;
-
- err = msdos_format_name(name, len, msdos_name, &sbi->options);
- if (err)
- return -ENOENT;
-
- err = fat_scan(dir, msdos_name, sinfo);
- if (!err && sbi->options.dotsOK) {
- if (name[0] == '.') {
- if (!(sinfo->de->attr & ATTR_HIDDEN))
- err = -ENOENT;
- } else {
- if (sinfo->de->attr & ATTR_HIDDEN)
- err = -ENOENT;
- }
- if (err)
- brelse(sinfo->bh);
- }
- return err;
-}
-
-/*
- * Compute the hash for the msdos name corresponding to the dentry.
- * Note: if the name is invalid, we leave the hash code unchanged so
- * that the existing dentry can be used. The msdos fs routines will
- * return ENOENT or EINVAL as appropriate.
- */
-static int msdos_hash(struct dentry *dentry, struct qstr *qstr)
-{
- struct fat_mount_options *options = &MSDOS_SB(dentry->d_sb)->options;
- unsigned char msdos_name[MSDOS_NAME];
- int error;
-
- error = msdos_format_name(qstr->name, qstr->len, msdos_name, options);
- if (!error)
- qstr->hash = full_name_hash(msdos_name, MSDOS_NAME);
- return 0;
-}
-
-/*
- * Compare two msdos names. If either of the names are invalid,
- * we fall back to doing the standard name comparison.
- */
-static int msdos_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
-{
- struct fat_mount_options *options = &MSDOS_SB(dentry->d_sb)->options;
- unsigned char a_msdos_name[MSDOS_NAME], b_msdos_name[MSDOS_NAME];
- int error;
-
- error = msdos_format_name(a->name, a->len, a_msdos_name, options);
- if (error)
- goto old_compare;
- error = msdos_format_name(b->name, b->len, b_msdos_name, options);
- if (error)
- goto old_compare;
- error = memcmp(a_msdos_name, b_msdos_name, MSDOS_NAME);
-out:
- return error;
-
-old_compare:
- error = 1;
- if (a->len == b->len)
- error = memcmp(a->name, b->name, a->len);
- goto out;
-}
-
-static struct dentry_operations msdos_dentry_operations = {
- .d_hash = msdos_hash,
- .d_compare = msdos_cmp,
-};
-
-/*
- * AV. Wrappers for FAT sb operations. Is it wise?
- */
-
-/***** Get inode using directory and name */
-static struct dentry *msdos_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
-{
- struct super_block *sb = dir->i_sb;
- struct fat_slot_info sinfo;
- struct inode *inode = NULL;
- int res;
-
- dentry->d_op = &msdos_dentry_operations;
-
- lock_super(sb);
- res = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
- if (res == -ENOENT)
- goto add;
- if (res < 0)
- goto out;
- inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
- brelse(sinfo.bh);
- if (IS_ERR(inode)) {
- res = PTR_ERR(inode);
- goto out;
- }
-add:
- res = 0;
- dentry = d_splice_alias(inode, dentry);
- if (dentry)
- dentry->d_op = &msdos_dentry_operations;
-out:
- unlock_super(sb);
- if (!res)
- return dentry;
- return ERR_PTR(res);
-}
-
-/***** Creates a directory entry (name is already formatted). */
-static int msdos_add_entry(struct inode *dir, const unsigned char *name,
- int is_dir, int is_hid, int cluster,
- struct timespec *ts, struct fat_slot_info *sinfo)
-{
- struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
- struct msdos_dir_entry de;
- __le16 time, date;
- int err;
-
- memcpy(de.name, name, MSDOS_NAME);
- de.attr = is_dir ? ATTR_DIR : ATTR_ARCH;
- if (is_hid)
- de.attr |= ATTR_HIDDEN;
- de.lcase = 0;
- fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc);
- de.cdate = de.adate = 0;
- de.ctime = 0;
- de.ctime_cs = 0;
- de.time = time;
- de.date = date;
- de.start = cpu_to_le16(cluster);
- de.starthi = cpu_to_le16(cluster >> 16);
- de.size = 0;
-
- err = fat_add_entries(dir, &de, 1, sinfo);
- if (err)
- return err;
-
- dir->i_ctime = dir->i_mtime = *ts;
- if (IS_DIRSYNC(dir))
- (void)fat_sync_inode(dir);
- else
- mark_inode_dirty(dir);
-
- return 0;
-}
-
-/***** Create a file */
-static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *nd)
-{
- struct super_block *sb = dir->i_sb;
- struct inode *inode = NULL;
- struct fat_slot_info sinfo;
- struct timespec ts;
- unsigned char msdos_name[MSDOS_NAME];
- int err, is_hid;
-
- lock_super(sb);
-
- err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
- msdos_name, &MSDOS_SB(sb)->options);
- if (err)
- goto out;
- is_hid = (dentry->d_name.name[0] == '.') && (msdos_name[0] != '.');
- /* Have to do it due to foo vs. .foo conflicts */
- if (!fat_scan(dir, msdos_name, &sinfo)) {
- brelse(sinfo.bh);
- err = -EINVAL;
- goto out;
- }
-
- ts = CURRENT_TIME_SEC;
- err = msdos_add_entry(dir, msdos_name, 0, is_hid, 0, &ts, &sinfo);
- if (err)
- goto out;
- inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
- brelse(sinfo.bh);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- goto out;
- }
- inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
- /* timestamp is already written, so mark_inode_dirty() is unneeded. */
-
- d_instantiate(dentry, inode);
-out:
- unlock_super(sb);
- if (!err)
- err = fat_flush_inodes(sb, dir, inode);
- return err;
-}
-
-/***** Remove a directory */
-static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
-{
- struct super_block *sb = dir->i_sb;
- struct inode *inode = dentry->d_inode;
- struct fat_slot_info sinfo;
- int err;
-
- lock_super(sb);
- /*
- * Check whether the directory is not in use, then check
- * whether it is empty.
- */
- err = fat_dir_empty(inode);
- if (err)
- goto out;
- err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
- if (err)
- goto out;
-
- err = fat_remove_entries(dir, &sinfo); /* and releases bh */
- if (err)
- goto out;
- drop_nlink(dir);
-
- clear_nlink(inode);
- inode->i_ctime = CURRENT_TIME_SEC;
- fat_detach(inode);
-out:
- unlock_super(sb);
- if (!err)
- err = fat_flush_inodes(sb, dir, inode);
-
- return err;
-}
-
-/***** Make a directory */
-static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- struct super_block *sb = dir->i_sb;
- struct fat_slot_info sinfo;
- struct inode *inode;
- unsigned char msdos_name[MSDOS_NAME];
- struct timespec ts;
- int err, is_hid, cluster;
-
- lock_super(sb);
-
- err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
- msdos_name, &MSDOS_SB(sb)->options);
- if (err)
- goto out;
- is_hid = (dentry->d_name.name[0] == '.') && (msdos_name[0] != '.');
- /* foo vs .foo situation */
- if (!fat_scan(dir, msdos_name, &sinfo)) {
- brelse(sinfo.bh);
- err = -EINVAL;
- goto out;
- }
-
- ts = CURRENT_TIME_SEC;
- cluster = fat_alloc_new_dir(dir, &ts);
- if (cluster < 0) {
- err = cluster;
- goto out;
- }
- err = msdos_add_entry(dir, msdos_name, 1, is_hid, cluster, &ts, &sinfo);
- if (err)
- goto out_free;
- inc_nlink(dir);
-
- inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
- brelse(sinfo.bh);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- /* the directory was completed, just return a error */
- goto out;
- }
- inode->i_nlink = 2;
- inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
- /* timestamp is already written, so mark_inode_dirty() is unneeded. */
-
- d_instantiate(dentry, inode);
-
- unlock_super(sb);
- fat_flush_inodes(sb, dir, inode);
- return 0;
-
-out_free:
- fat_free_clusters(dir, cluster);
-out:
- unlock_super(sb);
- return err;
-}
-
-/***** Unlink a file */
-static int msdos_unlink(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
- struct super_block *sb= inode->i_sb;
- struct fat_slot_info sinfo;
- int err;
-
- lock_super(sb);
- err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
- if (err)
- goto out;
-
- err = fat_remove_entries(dir, &sinfo); /* and releases bh */
- if (err)
- goto out;
- clear_nlink(inode);
- inode->i_ctime = CURRENT_TIME_SEC;
- fat_detach(inode);
-out:
- unlock_super(sb);
- if (!err)
- err = fat_flush_inodes(sb, dir, inode);
-
- return err;
-}
-
-static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
- struct dentry *old_dentry,
- struct inode *new_dir, unsigned char *new_name,
- struct dentry *new_dentry, int is_hid)
-{
- struct buffer_head *dotdot_bh;
- struct msdos_dir_entry *dotdot_de;
- struct inode *old_inode, *new_inode;
- struct fat_slot_info old_sinfo, sinfo;
- struct timespec ts;
- loff_t dotdot_i_pos, new_i_pos;
- int err, old_attrs, is_dir, update_dotdot, corrupt = 0;
-
- old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
- old_inode = old_dentry->d_inode;
- new_inode = new_dentry->d_inode;
-
- err = fat_scan(old_dir, old_name, &old_sinfo);
- if (err) {
- err = -EIO;
- goto out;
- }
-
- is_dir = S_ISDIR(old_inode->i_mode);
- update_dotdot = (is_dir && old_dir != new_dir);
- if (update_dotdot) {
- if (fat_get_dotdot_entry(old_inode, &dotdot_bh, &dotdot_de,
- &dotdot_i_pos) < 0) {
- err = -EIO;
- goto out;
- }
- }
-
- old_attrs = MSDOS_I(old_inode)->i_attrs;
- err = fat_scan(new_dir, new_name, &sinfo);
- if (!err) {
- if (!new_inode) {
- /* "foo" -> ".foo" case. just change the ATTR_HIDDEN */
- if (sinfo.de != old_sinfo.de) {
- err = -EINVAL;
- goto out;
- }
- if (is_hid)
- MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
- else
- MSDOS_I(old_inode)->i_attrs &= ~ATTR_HIDDEN;
- if (IS_DIRSYNC(old_dir)) {
- err = fat_sync_inode(old_inode);
- if (err) {
- MSDOS_I(old_inode)->i_attrs = old_attrs;
- goto out;
- }
- } else
- mark_inode_dirty(old_inode);
-
- old_dir->i_version++;
- old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
- if (IS_DIRSYNC(old_dir))
- (void)fat_sync_inode(old_dir);
- else
- mark_inode_dirty(old_dir);
- goto out;
- }
- }
-
- ts = CURRENT_TIME_SEC;
- if (new_inode) {
- if (err)
- goto out;
- if (is_dir) {
- err = fat_dir_empty(new_inode);
- if (err)
- goto out;
- }
- new_i_pos = MSDOS_I(new_inode)->i_pos;
- fat_detach(new_inode);
- } else {
- err = msdos_add_entry(new_dir, new_name, is_dir, is_hid, 0,
- &ts, &sinfo);
- if (err)
- goto out;
- new_i_pos = sinfo.i_pos;
- }
- new_dir->i_version++;
-
- fat_detach(old_inode);
- fat_attach(old_inode, new_i_pos);
- if (is_hid)
- MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
- else
- MSDOS_I(old_inode)->i_attrs &= ~ATTR_HIDDEN;
- if (IS_DIRSYNC(new_dir)) {
- err = fat_sync_inode(old_inode);
- if (err)
- goto error_inode;
- } else
- mark_inode_dirty(old_inode);
-
- if (update_dotdot) {
- int start = MSDOS_I(new_dir)->i_logstart;
- dotdot_de->start = cpu_to_le16(start);
- dotdot_de->starthi = cpu_to_le16(start >> 16);
- mark_buffer_dirty(dotdot_bh);
- if (IS_DIRSYNC(new_dir)) {
- err = sync_dirty_buffer(dotdot_bh);
- if (err)
- goto error_dotdot;
- }
- drop_nlink(old_dir);
- if (!new_inode)
- inc_nlink(new_dir);
- }
-
- err = fat_remove_entries(old_dir, &old_sinfo); /* and releases bh */
- old_sinfo.bh = NULL;
- if (err)
- goto error_dotdot;
- old_dir->i_version++;
- old_dir->i_ctime = old_dir->i_mtime = ts;
- if (IS_DIRSYNC(old_dir))
- (void)fat_sync_inode(old_dir);
- else
- mark_inode_dirty(old_dir);
-
- if (new_inode) {
- drop_nlink(new_inode);
- if (is_dir)
- drop_nlink(new_inode);
- new_inode->i_ctime = ts;
- }
-out:
- brelse(sinfo.bh);
- brelse(dotdot_bh);
- brelse(old_sinfo.bh);
- return err;
-
-error_dotdot:
- /* data cluster is shared, serious corruption */
- corrupt = 1;
-
- if (update_dotdot) {
- int start = MSDOS_I(old_dir)->i_logstart;
- dotdot_de->start = cpu_to_le16(start);
- dotdot_de->starthi = cpu_to_le16(start >> 16);
- mark_buffer_dirty(dotdot_bh);
- corrupt |= sync_dirty_buffer(dotdot_bh);
- }
-error_inode:
- fat_detach(old_inode);
- fat_attach(old_inode, old_sinfo.i_pos);
- MSDOS_I(old_inode)->i_attrs = old_attrs;
- if (new_inode) {
- fat_attach(new_inode, new_i_pos);
- if (corrupt)
- corrupt |= fat_sync_inode(new_inode);
- } else {
- /*
- * If new entry was not sharing the data cluster, it
- * shouldn't be serious corruption.
- */
- int err2 = fat_remove_entries(new_dir, &sinfo);
- if (corrupt)
- corrupt |= err2;
- sinfo.bh = NULL;
- }
- if (corrupt < 0) {
- fat_fs_panic(new_dir->i_sb,
- "%s: Filesystem corrupted (i_pos %lld)",
- __func__, sinfo.i_pos);
- }
- goto out;
-}
-
-/***** Rename, a wrapper for rename_same_dir & rename_diff_dir */
-static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-{
- struct super_block *sb = old_dir->i_sb;
- unsigned char old_msdos_name[MSDOS_NAME], new_msdos_name[MSDOS_NAME];
- int err, is_hid;
-
- lock_super(sb);
-
- err = msdos_format_name(old_dentry->d_name.name,
- old_dentry->d_name.len, old_msdos_name,
- &MSDOS_SB(old_dir->i_sb)->options);
- if (err)
- goto out;
- err = msdos_format_name(new_dentry->d_name.name,
- new_dentry->d_name.len, new_msdos_name,
- &MSDOS_SB(new_dir->i_sb)->options);
- if (err)
- goto out;
-
- is_hid =
- (new_dentry->d_name.name[0] == '.') && (new_msdos_name[0] != '.');
-
- err = do_msdos_rename(old_dir, old_msdos_name, old_dentry,
- new_dir, new_msdos_name, new_dentry, is_hid);
-out:
- unlock_super(sb);
- if (!err)
- err = fat_flush_inodes(sb, old_dir, new_dir);
- return err;
-}
-
-static const struct inode_operations msdos_dir_inode_operations = {
- .create = msdos_create,
- .lookup = msdos_lookup,
- .unlink = msdos_unlink,
- .mkdir = msdos_mkdir,
- .rmdir = msdos_rmdir,
- .rename = msdos_rename,
- .setattr = fat_setattr,
- .getattr = fat_getattr,
-};
-
-static int msdos_fill_super(struct super_block *sb, void *data, int silent)
-{
- int res;
-
- res = fat_fill_super(sb, data, silent, &msdos_dir_inode_operations, 0);
- if (res)
- return res;
-
- sb->s_flags |= MS_NOATIME;
- sb->s_root->d_op = &msdos_dentry_operations;
- return 0;
-}
-
-static int msdos_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
-{
- return get_sb_bdev(fs_type, flags, dev_name, data, msdos_fill_super,
- mnt);
-}
-
-static struct file_system_type msdos_fs_type = {
- .owner = THIS_MODULE,
- .name = "msdos",
- .get_sb = msdos_get_sb,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-
-static int __init init_msdos_fs(void)
-{
- return register_filesystem(&msdos_fs_type);
-}
-
-static void __exit exit_msdos_fs(void)
-{
- unregister_filesystem(&msdos_fs_type);
-}
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Werner Almesberger");
-MODULE_DESCRIPTION("MS-DOS filesystem support");
-
-module_init(init_msdos_fs)
-module_exit(exit_msdos_fs)
return -ENOMEM;
offset = *offsetp;
- cdp->err = nfserr_eof; /* will be cleared on successful read */
while (1) {
unsigned int reclen;
+ cdp->err = nfserr_eof; /* will be cleared on successful read */
buf.used = 0;
buf.full = 0;
de = (struct buffered_dirent *)((char *)de + reclen);
}
offset = vfs_llseek(file, 0, SEEK_CUR);
- cdp->err = nfserr_eof;
- if (!buf.full)
- break;
}
done:
+++ /dev/null
-#
-# Makefile for the linux vfat-filesystem routines.
-#
-
-obj-$(CONFIG_VFAT_FS) += vfat.o
-
-vfat-y := namei.o
+++ /dev/null
-/*
- * linux/fs/vfat/namei.c
- *
- * Written 1992,1993 by Werner Almesberger
- *
- * Windows95/Windows NT compatible extended MSDOS filesystem
- * by Gordon Chaffee Copyright (C) 1995. Send bug reports for the
- * VFAT filesystem to <chaffee@cs.berkeley.edu>. Specify
- * what file operation caused you trouble and if you can duplicate
- * the problem, send a script that demonstrates it.
- *
- * Short name translation 1999, 2001 by Wolfram Pienkoss <wp@bszh.de>
- *
- * Support Multibyte characters and cleanup by
- * OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
- */
-
-#include <linux/module.h>
-
-#include <linux/jiffies.h>
-#include <linux/msdos_fs.h>
-#include <linux/ctype.h>
-#include <linux/slab.h>
-#include <linux/smp_lock.h>
-#include <linux/buffer_head.h>
-#include <linux/namei.h>
-
-static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd)
-{
- int ret = 1;
-
- if (!dentry->d_inode &&
- nd && !(nd->flags & LOOKUP_CONTINUE) && (nd->flags & LOOKUP_CREATE))
- /*
- * negative dentry is dropped, in order to make sure
- * to use the name which a user desires if this is
- * create path.
- */
- ret = 0;
- else {
- spin_lock(&dentry->d_lock);
- if (dentry->d_time != dentry->d_parent->d_inode->i_version)
- ret = 0;
- spin_unlock(&dentry->d_lock);
- }
- return ret;
-}
-
-/* returns the length of a struct qstr, ignoring trailing dots */
-static unsigned int vfat_striptail_len(struct qstr *qstr)
-{
- unsigned int len = qstr->len;
-
- while (len && qstr->name[len - 1] == '.')
- len--;
- return len;
-}
-
-/*
- * Compute the hash for the vfat name corresponding to the dentry.
- * Note: if the name is invalid, we leave the hash code unchanged so
- * that the existing dentry can be used. The vfat fs routines will
- * return ENOENT or EINVAL as appropriate.
- */
-static int vfat_hash(struct dentry *dentry, struct qstr *qstr)
-{
- qstr->hash = full_name_hash(qstr->name, vfat_striptail_len(qstr));
- return 0;
-}
-
-/*
- * Compute the hash for the vfat name corresponding to the dentry.
- * Note: if the name is invalid, we leave the hash code unchanged so
- * that the existing dentry can be used. The vfat fs routines will
- * return ENOENT or EINVAL as appropriate.
- */
-static int vfat_hashi(struct dentry *dentry, struct qstr *qstr)
-{
- struct nls_table *t = MSDOS_SB(dentry->d_inode->i_sb)->nls_io;
- const unsigned char *name;
- unsigned int len;
- unsigned long hash;
-
- name = qstr->name;
- len = vfat_striptail_len(qstr);
-
- hash = init_name_hash();
- while (len--)
- hash = partial_name_hash(nls_tolower(t, *name++), hash);
- qstr->hash = end_name_hash(hash);
-
- return 0;
-}
-
-/*
- * Case insensitive compare of two vfat names.
- */
-static int vfat_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b)
-{
- struct nls_table *t = MSDOS_SB(dentry->d_inode->i_sb)->nls_io;
- unsigned int alen, blen;
-
- /* A filename cannot end in '.' or we treat it like it has none */
- alen = vfat_striptail_len(a);
- blen = vfat_striptail_len(b);
- if (alen == blen) {
- if (nls_strnicmp(t, a->name, b->name, alen) == 0)
- return 0;
- }
- return 1;
-}
-
-/*
- * Case sensitive compare of two vfat names.
- */
-static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b)
-{
- unsigned int alen, blen;
-
- /* A filename cannot end in '.' or we treat it like it has none */
- alen = vfat_striptail_len(a);
- blen = vfat_striptail_len(b);
- if (alen == blen) {
- if (strncmp(a->name, b->name, alen) == 0)
- return 0;
- }
- return 1;
-}
-
-static struct dentry_operations vfat_dentry_ops[4] = {
- {
- .d_hash = vfat_hashi,
- .d_compare = vfat_cmpi,
- },
- {
- .d_revalidate = vfat_revalidate,
- .d_hash = vfat_hashi,
- .d_compare = vfat_cmpi,
- },
- {
- .d_hash = vfat_hash,
- .d_compare = vfat_cmp,
- },
- {
- .d_revalidate = vfat_revalidate,
- .d_hash = vfat_hash,
- .d_compare = vfat_cmp,
- }
-};
-
-/* Characters that are undesirable in an MS-DOS file name */
-
-static inline wchar_t vfat_bad_char(wchar_t w)
-{
- return (w < 0x0020)
- || (w == '*') || (w == '?') || (w == '<') || (w == '>')
- || (w == '|') || (w == '"') || (w == ':') || (w == '/')
- || (w == '\\');
-}
-
-static inline wchar_t vfat_replace_char(wchar_t w)
-{
- return (w == '[') || (w == ']') || (w == ';') || (w == ',')
- || (w == '+') || (w == '=');
-}
-
-static wchar_t vfat_skip_char(wchar_t w)
-{
- return (w == '.') || (w == ' ');
-}
-
-static inline int vfat_is_used_badchars(const wchar_t *s, int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- if (vfat_bad_char(s[i]))
- return -EINVAL;
-
- if (s[i - 1] == ' ') /* last character cannot be space */
- return -EINVAL;
-
- return 0;
-}
-
-static int vfat_find_form(struct inode *dir, unsigned char *name)
-{
- struct fat_slot_info sinfo;
- int err = fat_scan(dir, name, &sinfo);
- if (err)
- return -ENOENT;
- brelse(sinfo.bh);
- return 0;
-}
-
-/*
- * 1) Valid characters for the 8.3 format alias are any combination of
- * letters, uppercase alphabets, digits, any of the
- * following special characters:
- * $ % ' ` - @ { } ~ ! # ( ) & _ ^
- * In this case Longfilename is not stored in disk.
- *
- * WinNT's Extension:
- * File name and extension name is contain uppercase/lowercase
- * only. And it is expressed by CASE_LOWER_BASE and CASE_LOWER_EXT.
- *
- * 2) File name is 8.3 format, but it contain the uppercase and
- * lowercase char, muliti bytes char, etc. In this case numtail is not
- * added, but Longfilename is stored.
- *
- * 3) When the one except for the above, or the following special
- * character are contained:
- * . [ ] ; , + =
- * numtail is added, and Longfilename must be stored in disk .
- */
-struct shortname_info {
- unsigned char lower:1,
- upper:1,
- valid:1;
-};
-#define INIT_SHORTNAME_INFO(x) do { \
- (x)->lower = 1; \
- (x)->upper = 1; \
- (x)->valid = 1; \
-} while (0)
-
-static inline int to_shortname_char(struct nls_table *nls,
- unsigned char *buf, int buf_size,
- wchar_t *src, struct shortname_info *info)
-{
- int len;
-
- if (vfat_skip_char(*src)) {
- info->valid = 0;
- return 0;
- }
- if (vfat_replace_char(*src)) {
- info->valid = 0;
- buf[0] = '_';
- return 1;
- }
-
- len = nls->uni2char(*src, buf, buf_size);
- if (len <= 0) {
- info->valid = 0;
- buf[0] = '_';
- len = 1;
- } else if (len == 1) {
- unsigned char prev = buf[0];
-
- if (buf[0] >= 0x7F) {
- info->lower = 0;
- info->upper = 0;
- }
-
- buf[0] = nls_toupper(nls, buf[0]);
- if (isalpha(buf[0])) {
- if (buf[0] == prev)
- info->lower = 0;
- else
- info->upper = 0;
- }
- } else {
- info->lower = 0;
- info->upper = 0;
- }
-
- return len;
-}
-
-/*
- * Given a valid longname, create a unique shortname. Make sure the
- * shortname does not exist
- * Returns negative number on error, 0 for a normal
- * return, and 1 for valid shortname
- */
-static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,
- wchar_t *uname, int ulen,
- unsigned char *name_res, unsigned char *lcase)
-{
- struct fat_mount_options *opts = &MSDOS_SB(dir->i_sb)->options;
- wchar_t *ip, *ext_start, *end, *name_start;
- unsigned char base[9], ext[4], buf[8], *p;
- unsigned char charbuf[NLS_MAX_CHARSET_SIZE];
- int chl, chi;
- int sz = 0, extlen, baselen, i, numtail_baselen, numtail2_baselen;
- int is_shortname;
- struct shortname_info base_info, ext_info;
-
- is_shortname = 1;
- INIT_SHORTNAME_INFO(&base_info);
- INIT_SHORTNAME_INFO(&ext_info);
-
- /* Now, we need to create a shortname from the long name */
- ext_start = end = &uname[ulen];
- while (--ext_start >= uname) {
- if (*ext_start == 0x002E) { /* is `.' */
- if (ext_start == end - 1) {
- sz = ulen;
- ext_start = NULL;
- }
- break;
- }
- }
-
- if (ext_start == uname - 1) {
- sz = ulen;
- ext_start = NULL;
- } else if (ext_start) {
- /*
- * Names which start with a dot could be just
- * an extension eg. "...test". In this case Win95
- * uses the extension as the name and sets no extension.
- */
- name_start = &uname[0];
- while (name_start < ext_start) {
- if (!vfat_skip_char(*name_start))
- break;
- name_start++;
- }
- if (name_start != ext_start) {
- sz = ext_start - uname;
- ext_start++;
- } else {
- sz = ulen;
- ext_start = NULL;
- }
- }
-
- numtail_baselen = 6;
- numtail2_baselen = 2;
- for (baselen = i = 0, p = base, ip = uname; i < sz; i++, ip++) {
- chl = to_shortname_char(nls, charbuf, sizeof(charbuf),
- ip, &base_info);
- if (chl == 0)
- continue;
-
- if (baselen < 2 && (baselen + chl) > 2)
- numtail2_baselen = baselen;
- if (baselen < 6 && (baselen + chl) > 6)
- numtail_baselen = baselen;
- for (chi = 0; chi < chl; chi++) {
- *p++ = charbuf[chi];
- baselen++;
- if (baselen >= 8)
- break;
- }
- if (baselen >= 8) {
- if ((chi < chl - 1) || (ip + 1) - uname < sz)
- is_shortname = 0;
- break;
- }
- }
- if (baselen == 0) {
- return -EINVAL;
- }
-
- extlen = 0;
- if (ext_start) {
- for (p = ext, ip = ext_start; extlen < 3 && ip < end; ip++) {
- chl = to_shortname_char(nls, charbuf, sizeof(charbuf),
- ip, &ext_info);
- if (chl == 0)
- continue;
-
- if ((extlen + chl) > 3) {
- is_shortname = 0;
- break;
- }
- for (chi = 0; chi < chl; chi++) {
- *p++ = charbuf[chi];
- extlen++;
- }
- if (extlen >= 3) {
- if (ip + 1 != end)
- is_shortname = 0;
- break;
- }
- }
- }
- ext[extlen] = '\0';
- base[baselen] = '\0';
-
- /* Yes, it can happen. ".\xe5" would do it. */
- if (base[0] == DELETED_FLAG)
- base[0] = 0x05;
-
- /* OK, at this point we know that base is not longer than 8 symbols,
- * ext is not longer than 3, base is nonempty, both don't contain
- * any bad symbols (lowercase transformed to uppercase).
- */
-
- memset(name_res, ' ', MSDOS_NAME);
- memcpy(name_res, base, baselen);
- memcpy(name_res + 8, ext, extlen);
- *lcase = 0;
- if (is_shortname && base_info.valid && ext_info.valid) {
- if (vfat_find_form(dir, name_res) == 0)
- return -EEXIST;
-
- if (opts->shortname & VFAT_SFN_CREATE_WIN95) {
- return (base_info.upper && ext_info.upper);
- } else if (opts->shortname & VFAT_SFN_CREATE_WINNT) {
- if ((base_info.upper || base_info.lower) &&
- (ext_info.upper || ext_info.lower)) {
- if (!base_info.upper && base_info.lower)
- *lcase |= CASE_LOWER_BASE;
- if (!ext_info.upper && ext_info.lower)
- *lcase |= CASE_LOWER_EXT;
- return 1;
- }
- return 0;
- } else {
- BUG();
- }
- }
-
- if (opts->numtail == 0)
- if (vfat_find_form(dir, name_res) < 0)
- return 0;
-
- /*
- * Try to find a unique extension. This used to
- * iterate through all possibilities sequentially,
- * but that gave extremely bad performance. Windows
- * only tries a few cases before using random
- * values for part of the base.
- */
-
- if (baselen > 6) {
- baselen = numtail_baselen;
- name_res[7] = ' ';
- }
- name_res[baselen] = '~';
- for (i = 1; i < 10; i++) {
- name_res[baselen + 1] = i + '0';
- if (vfat_find_form(dir, name_res) < 0)
- return 0;
- }
-
- i = jiffies & 0xffff;
- sz = (jiffies >> 16) & 0x7;
- if (baselen > 2) {
- baselen = numtail2_baselen;
- name_res[7] = ' ';
- }
- name_res[baselen + 4] = '~';
- name_res[baselen + 5] = '1' + sz;
- while (1) {
- sprintf(buf, "%04X", i);
- memcpy(&name_res[baselen], buf, 4);
- if (vfat_find_form(dir, name_res) < 0)
- break;
- i -= 11;
- }
- return 0;
-}
-
-/* Translate a string, including coded sequences into Unicode */
-static int
-xlate_to_uni(const unsigned char *name, int len, unsigned char *outname,
- int *longlen, int *outlen, int escape, int utf8,
- struct nls_table *nls)
-{
- const unsigned char *ip;
- unsigned char nc;
- unsigned char *op;
- unsigned int ec;
- int i, k, fill;
- int charlen;
-
- if (utf8) {
- int name_len = strlen(name);
-
- *outlen = utf8_mbstowcs((wchar_t *)outname, name, PATH_MAX);
-
- /*
- * We stripped '.'s before and set len appropriately,
- * but utf8_mbstowcs doesn't care about len
- */
- *outlen -= (name_len - len);
-
- if (*outlen > 255)
- return -ENAMETOOLONG;
-
- op = &outname[*outlen * sizeof(wchar_t)];
- } else {
- if (nls) {
- for (i = 0, ip = name, op = outname, *outlen = 0;
- i < len && *outlen <= 255;
- *outlen += 1)
- {
- if (escape && (*ip == ':')) {
- if (i > len - 5)
- return -EINVAL;
- ec = 0;
- for (k = 1; k < 5; k++) {
- nc = ip[k];
- ec <<= 4;
- if (nc >= '0' && nc <= '9') {
- ec |= nc - '0';
- continue;
- }
- if (nc >= 'a' && nc <= 'f') {
- ec |= nc - ('a' - 10);
- continue;
- }
- if (nc >= 'A' && nc <= 'F') {
- ec |= nc - ('A' - 10);
- continue;
- }
- return -EINVAL;
- }
- *op++ = ec & 0xFF;
- *op++ = ec >> 8;
- ip += 5;
- i += 5;
- } else {
- if ((charlen = nls->char2uni(ip, len - i, (wchar_t *)op)) < 0)
- return -EINVAL;
- ip += charlen;
- i += charlen;
- op += 2;
- }
- }
- if (i < len)
- return -ENAMETOOLONG;
- } else {
- for (i = 0, ip = name, op = outname, *outlen = 0;
- i < len && *outlen <= 255;
- i++, *outlen += 1)
- {
- *op++ = *ip++;
- *op++ = 0;
- }
- if (i < len)
- return -ENAMETOOLONG;
- }
- }
-
- *longlen = *outlen;
- if (*outlen % 13) {
- *op++ = 0;
- *op++ = 0;
- *outlen += 1;
- if (*outlen % 13) {
- fill = 13 - (*outlen % 13);
- for (i = 0; i < fill; i++) {
- *op++ = 0xff;
- *op++ = 0xff;
- }
- *outlen += fill;
- }
- }
-
- return 0;
-}
-
-static int vfat_build_slots(struct inode *dir, const unsigned char *name,
- int len, int is_dir, int cluster,
- struct timespec *ts,
- struct msdos_dir_slot *slots, int *nr_slots)
-{
- struct msdos_sb_info *sbi = MSDOS_SB(dir->i_sb);
- struct fat_mount_options *opts = &sbi->options;
- struct msdos_dir_slot *ps;
- struct msdos_dir_entry *de;
- unsigned char cksum, lcase;
- unsigned char msdos_name[MSDOS_NAME];
- wchar_t *uname;
- __le16 time, date;
- int err, ulen, usize, i;
- loff_t offset;
-
- *nr_slots = 0;
-
- uname = __getname();
- if (!uname)
- return -ENOMEM;
-
- err = xlate_to_uni(name, len, (unsigned char *)uname, &ulen, &usize,
- opts->unicode_xlate, opts->utf8, sbi->nls_io);
- if (err)
- goto out_free;
-
- err = vfat_is_used_badchars(uname, ulen);
- if (err)
- goto out_free;
-
- err = vfat_create_shortname(dir, sbi->nls_disk, uname, ulen,
- msdos_name, &lcase);
- if (err < 0)
- goto out_free;
- else if (err == 1) {
- de = (struct msdos_dir_entry *)slots;
- err = 0;
- goto shortname;
- }
-
- /* build the entry of long file name */
- cksum = fat_checksum(msdos_name);
-
- *nr_slots = usize / 13;
- for (ps = slots, i = *nr_slots; i > 0; i--, ps++) {
- ps->id = i;
- ps->attr = ATTR_EXT;
- ps->reserved = 0;
- ps->alias_checksum = cksum;
- ps->start = 0;
- offset = (i - 1) * 13;
- fatwchar_to16(ps->name0_4, uname + offset, 5);
- fatwchar_to16(ps->name5_10, uname + offset + 5, 6);
- fatwchar_to16(ps->name11_12, uname + offset + 11, 2);
- }
- slots[0].id |= 0x40;
- de = (struct msdos_dir_entry *)ps;
-
-shortname:
- /* build the entry of 8.3 alias name */
- (*nr_slots)++;
- memcpy(de->name, msdos_name, MSDOS_NAME);
- de->attr = is_dir ? ATTR_DIR : ATTR_ARCH;
- de->lcase = lcase;
- fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc);
- de->time = de->ctime = time;
- de->date = de->cdate = de->adate = date;
- de->ctime_cs = 0;
- de->start = cpu_to_le16(cluster);
- de->starthi = cpu_to_le16(cluster >> 16);
- de->size = 0;
-out_free:
- __putname(uname);
- return err;
-}
-
-static int vfat_add_entry(struct inode *dir, struct qstr *qname, int is_dir,
- int cluster, struct timespec *ts,
- struct fat_slot_info *sinfo)
-{
- struct msdos_dir_slot *slots;
- unsigned int len;
- int err, nr_slots;
-
- len = vfat_striptail_len(qname);
- if (len == 0)
- return -ENOENT;
-
- slots = kmalloc(sizeof(*slots) * MSDOS_SLOTS, GFP_NOFS);
- if (slots == NULL)
- return -ENOMEM;
-
- err = vfat_build_slots(dir, qname->name, len, is_dir, cluster, ts,
- slots, &nr_slots);
- if (err)
- goto cleanup;
-
- err = fat_add_entries(dir, slots, nr_slots, sinfo);
- if (err)
- goto cleanup;
-
- /* update timestamp */
- dir->i_ctime = dir->i_mtime = dir->i_atime = *ts;
- if (IS_DIRSYNC(dir))
- (void)fat_sync_inode(dir);
- else
- mark_inode_dirty(dir);
-cleanup:
- kfree(slots);
- return err;
-}
-
-static int vfat_find(struct inode *dir, struct qstr *qname,
- struct fat_slot_info *sinfo)
-{
- unsigned int len = vfat_striptail_len(qname);
- if (len == 0)
- return -ENOENT;
- return fat_search_long(dir, qname->name, len, sinfo);
-}
-
-static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
-{
- struct super_block *sb = dir->i_sb;
- struct fat_slot_info sinfo;
- struct inode *inode = NULL;
- struct dentry *alias;
- int err, table;
-
- lock_super(sb);
- table = (MSDOS_SB(sb)->options.name_check == 's') ? 2 : 0;
- dentry->d_op = &vfat_dentry_ops[table];
-
- err = vfat_find(dir, &dentry->d_name, &sinfo);
- if (err) {
- table++;
- goto error;
- }
- inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
- brelse(sinfo.bh);
- if (IS_ERR(inode)) {
- unlock_super(sb);
- return ERR_CAST(inode);
- }
- alias = d_find_alias(inode);
- if (alias) {
- if (d_invalidate(alias) == 0)
- dput(alias);
- else {
- iput(inode);
- unlock_super(sb);
- return alias;
- }
-
- }
-error:
- unlock_super(sb);
- dentry->d_op = &vfat_dentry_ops[table];
- dentry->d_time = dentry->d_parent->d_inode->i_version;
- dentry = d_splice_alias(inode, dentry);
- if (dentry) {
- dentry->d_op = &vfat_dentry_ops[table];
- dentry->d_time = dentry->d_parent->d_inode->i_version;
- }
- return dentry;
-}
-
-static int vfat_create(struct inode *dir, struct dentry *dentry, int mode,
- struct nameidata *nd)
-{
- struct super_block *sb = dir->i_sb;
- struct inode *inode;
- struct fat_slot_info sinfo;
- struct timespec ts;
- int err;
-
- lock_super(sb);
-
- ts = CURRENT_TIME_SEC;
- err = vfat_add_entry(dir, &dentry->d_name, 0, 0, &ts, &sinfo);
- if (err)
- goto out;
- dir->i_version++;
-
- inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
- brelse(sinfo.bh);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- goto out;
- }
- inode->i_version++;
- inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
- /* timestamp is already written, so mark_inode_dirty() is unneeded. */
-
- dentry->d_time = dentry->d_parent->d_inode->i_version;
- d_instantiate(dentry, inode);
-out:
- unlock_super(sb);
- return err;
-}
-
-static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
- struct super_block *sb = dir->i_sb;
- struct fat_slot_info sinfo;
- int err;
-
- lock_super(sb);
-
- err = fat_dir_empty(inode);
- if (err)
- goto out;
- err = vfat_find(dir, &dentry->d_name, &sinfo);
- if (err)
- goto out;
-
- err = fat_remove_entries(dir, &sinfo); /* and releases bh */
- if (err)
- goto out;
- drop_nlink(dir);
-
- clear_nlink(inode);
- inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
- fat_detach(inode);
-out:
- unlock_super(sb);
-
- return err;
-}
-
-static int vfat_unlink(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
- struct super_block *sb = dir->i_sb;
- struct fat_slot_info sinfo;
- int err;
-
- lock_super(sb);
-
- err = vfat_find(dir, &dentry->d_name, &sinfo);
- if (err)
- goto out;
-
- err = fat_remove_entries(dir, &sinfo); /* and releases bh */
- if (err)
- goto out;
- clear_nlink(inode);
- inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
- fat_detach(inode);
-out:
- unlock_super(sb);
-
- return err;
-}
-
-static int vfat_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- struct super_block *sb = dir->i_sb;
- struct inode *inode;
- struct fat_slot_info sinfo;
- struct timespec ts;
- int err, cluster;
-
- lock_super(sb);
-
- ts = CURRENT_TIME_SEC;
- cluster = fat_alloc_new_dir(dir, &ts);
- if (cluster < 0) {
- err = cluster;
- goto out;
- }
- err = vfat_add_entry(dir, &dentry->d_name, 1, cluster, &ts, &sinfo);
- if (err)
- goto out_free;
- dir->i_version++;
- inc_nlink(dir);
-
- inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
- brelse(sinfo.bh);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
- /* the directory was completed, just return a error */
- goto out;
- }
- inode->i_version++;
- inode->i_nlink = 2;
- inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
- /* timestamp is already written, so mark_inode_dirty() is unneeded. */
-
- dentry->d_time = dentry->d_parent->d_inode->i_version;
- d_instantiate(dentry, inode);
-
- unlock_super(sb);
- return 0;
-
-out_free:
- fat_free_clusters(dir, cluster);
-out:
- unlock_super(sb);
- return err;
-}
-
-static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-{
- struct buffer_head *dotdot_bh;
- struct msdos_dir_entry *dotdot_de;
- struct inode *old_inode, *new_inode;
- struct fat_slot_info old_sinfo, sinfo;
- struct timespec ts;
- loff_t dotdot_i_pos, new_i_pos;
- int err, is_dir, update_dotdot, corrupt = 0;
- struct super_block *sb = old_dir->i_sb;
-
- old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
- old_inode = old_dentry->d_inode;
- new_inode = new_dentry->d_inode;
- lock_super(sb);
- err = vfat_find(old_dir, &old_dentry->d_name, &old_sinfo);
- if (err)
- goto out;
-
- is_dir = S_ISDIR(old_inode->i_mode);
- update_dotdot = (is_dir && old_dir != new_dir);
- if (update_dotdot) {
- if (fat_get_dotdot_entry(old_inode, &dotdot_bh, &dotdot_de,
- &dotdot_i_pos) < 0) {
- err = -EIO;
- goto out;
- }
- }
-
- ts = CURRENT_TIME_SEC;
- if (new_inode) {
- if (is_dir) {
- err = fat_dir_empty(new_inode);
- if (err)
- goto out;
- }
- new_i_pos = MSDOS_I(new_inode)->i_pos;
- fat_detach(new_inode);
- } else {
- err = vfat_add_entry(new_dir, &new_dentry->d_name, is_dir, 0,
- &ts, &sinfo);
- if (err)
- goto out;
- new_i_pos = sinfo.i_pos;
- }
- new_dir->i_version++;
-
- fat_detach(old_inode);
- fat_attach(old_inode, new_i_pos);
- if (IS_DIRSYNC(new_dir)) {
- err = fat_sync_inode(old_inode);
- if (err)
- goto error_inode;
- } else
- mark_inode_dirty(old_inode);
-
- if (update_dotdot) {
- int start = MSDOS_I(new_dir)->i_logstart;
- dotdot_de->start = cpu_to_le16(start);
- dotdot_de->starthi = cpu_to_le16(start >> 16);
- mark_buffer_dirty(dotdot_bh);
- if (IS_DIRSYNC(new_dir)) {
- err = sync_dirty_buffer(dotdot_bh);
- if (err)
- goto error_dotdot;
- }
- drop_nlink(old_dir);
- if (!new_inode)
- inc_nlink(new_dir);
- }
-
- err = fat_remove_entries(old_dir, &old_sinfo); /* and releases bh */
- old_sinfo.bh = NULL;
- if (err)
- goto error_dotdot;
- old_dir->i_version++;
- old_dir->i_ctime = old_dir->i_mtime = ts;
- if (IS_DIRSYNC(old_dir))
- (void)fat_sync_inode(old_dir);
- else
- mark_inode_dirty(old_dir);
-
- if (new_inode) {
- drop_nlink(new_inode);
- if (is_dir)
- drop_nlink(new_inode);
- new_inode->i_ctime = ts;
- }
-out:
- brelse(sinfo.bh);
- brelse(dotdot_bh);
- brelse(old_sinfo.bh);
- unlock_super(sb);
-
- return err;
-
-error_dotdot:
- /* data cluster is shared, serious corruption */
- corrupt = 1;
-
- if (update_dotdot) {
- int start = MSDOS_I(old_dir)->i_logstart;
- dotdot_de->start = cpu_to_le16(start);
- dotdot_de->starthi = cpu_to_le16(start >> 16);
- mark_buffer_dirty(dotdot_bh);
- corrupt |= sync_dirty_buffer(dotdot_bh);
- }
-error_inode:
- fat_detach(old_inode);
- fat_attach(old_inode, old_sinfo.i_pos);
- if (new_inode) {
- fat_attach(new_inode, new_i_pos);
- if (corrupt)
- corrupt |= fat_sync_inode(new_inode);
- } else {
- /*
- * If new entry was not sharing the data cluster, it
- * shouldn't be serious corruption.
- */
- int err2 = fat_remove_entries(new_dir, &sinfo);
- if (corrupt)
- corrupt |= err2;
- sinfo.bh = NULL;
- }
- if (corrupt < 0) {
- fat_fs_panic(new_dir->i_sb,
- "%s: Filesystem corrupted (i_pos %lld)",
- __func__, sinfo.i_pos);
- }
- goto out;
-}
-
-static const struct inode_operations vfat_dir_inode_operations = {
- .create = vfat_create,
- .lookup = vfat_lookup,
- .unlink = vfat_unlink,
- .mkdir = vfat_mkdir,
- .rmdir = vfat_rmdir,
- .rename = vfat_rename,
- .setattr = fat_setattr,
- .getattr = fat_getattr,
-};
-
-static int vfat_fill_super(struct super_block *sb, void *data, int silent)
-{
- int res;
-
- res = fat_fill_super(sb, data, silent, &vfat_dir_inode_operations, 1);
- if (res)
- return res;
-
- if (MSDOS_SB(sb)->options.name_check != 's')
- sb->s_root->d_op = &vfat_dentry_ops[0];
- else
- sb->s_root->d_op = &vfat_dentry_ops[2];
-
- return 0;
-}
-
-static int vfat_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
-{
- return get_sb_bdev(fs_type, flags, dev_name, data, vfat_fill_super,
- mnt);
-}
-
-static struct file_system_type vfat_fs_type = {
- .owner = THIS_MODULE,
- .name = "vfat",
- .get_sb = vfat_get_sb,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-
-static int __init init_vfat_fs(void)
-{
- return register_filesystem(&vfat_fs_type);
-}
-
-static void __exit exit_vfat_fs(void)
-{
- unregister_filesystem(&vfat_fs_type);
-}
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("VFAT filesystem support");
-MODULE_AUTHOR("Gordon Chaffee");
-
-module_init(init_vfat_fs)
-module_exit(exit_vfat_fs)
int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct device *acpi_get_physical_device(acpi_handle);
+struct device *acpi_get_physical_pci_device(acpi_handle);
+
/* helper */
acpi_handle acpi_get_child(acpi_handle, acpi_integer);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
#define ACPI_MAX_STRING 80
+/*
+ * Please update drivers/acpi/debug.c and Documentation/acpi/debug.txt
+ * if you add to this list.
+ */
#define ACPI_BUS_COMPONENT 0x00010000
+#define ACPI_AC_COMPONENT 0x00020000
+#define ACPI_BATTERY_COMPONENT 0x00040000
+#define ACPI_BUTTON_COMPONENT 0x00080000
+#define ACPI_SBS_COMPONENT 0x00100000
+#define ACPI_FAN_COMPONENT 0x00200000
+#define ACPI_PCI_COMPONENT 0x00400000
+#define ACPI_POWER_COMPONENT 0x00800000
+#define ACPI_CONTAINER_COMPONENT 0x01000000
#define ACPI_SYSTEM_COMPONENT 0x02000000
+#define ACPI_THERMAL_COMPONENT 0x04000000
+#define ACPI_MEMORY_DEVICE_COMPONENT 0x08000000
+#define ACPI_VIDEO_COMPONENT 0x10000000
+#define ACPI_PROCESSOR_COMPONENT 0x20000000
/*
* _HID definitions
PCI
-------------------------------------------------------------------------- */
-#define ACPI_PCI_COMPONENT 0x00400000
/* ACPI PCI Interrupt Link (pci_link.c) */
Power Resource
-------------------------------------------------------------------------- */
-#ifdef CONFIG_ACPI_POWER
int acpi_device_sleep_wake(struct acpi_device *dev,
int enable, int sleep_state, int dev_state);
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state);
int acpi_power_get_inferred_state(struct acpi_device *device);
int acpi_power_transition(struct acpi_device *device, int state);
extern int acpi_power_nocheck;
-#endif
/* --------------------------------------------------------------------------
Embedded Controller
-------------------------------------------------------------------------- */
-#ifdef CONFIG_ACPI_EC
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);
-#endif
/* --------------------------------------------------------------------------
Processor
#define ACPI_EVENT_FLAG_ENABLED (acpi_event_status) 0x01
#define ACPI_EVENT_FLAG_WAKE_ENABLED (acpi_event_status) 0x02
#define ACPI_EVENT_FLAG_SET (acpi_event_status) 0x04
+#define ACPI_EVENT_FLAG_HANDLE (acpi_event_status) 0x08
/*
* General Purpose Events (GPE)
#define __pfn_to_page(pfn) \
({ unsigned long __pfn = (pfn); \
- unsigned long __nid = arch_pfn_to_nid(pfn); \
+ unsigned long __nid = arch_pfn_to_nid(__pfn); \
NODE_DATA(__nid)->node_mem_map + arch_local_page_offset(__pfn, __nid);\
})
int acpi_pci_register_driver(struct acpi_pci_driver *driver);
void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
-#ifdef CONFIG_ACPI_EC
-
extern int ec_read(u8 addr, u8 *val);
extern int ec_write(u8 addr, u8 val);
extern int ec_transaction(u8 command,
u8 *rdata, unsigned rdata_len,
int force_poll);
-#endif /*CONFIG_ACPI_EC*/
-
#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
typedef void (*wmi_notify_handler) (u32 value, void *context);
#endif /* CONFIG_ACPI_WMI */
+#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
+#define ACPI_VIDEO_DEVICE_POSTING 0x0002
+#define ACPI_VIDEO_ROM_AVAILABLE 0x0004
+#define ACPI_VIDEO_BACKLIGHT 0x0008
+#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
+#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
+#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
+#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
+#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
+#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
+#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
+#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
+
+#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
+
+extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
+extern long acpi_is_video_device(struct acpi_device *device);
+extern int acpi_video_backlight_support(void);
+extern int acpi_video_display_switch_support(void);
+
+#else
+
+static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
+{
+ return 0;
+}
+
+static inline long acpi_is_video_device(struct acpi_device *device)
+{
+ return 0;
+}
+
+static inline int acpi_video_backlight_support(void)
+{
+ return 0;
+}
+
+static inline int acpi_video_display_switch_support(void)
+{
+ return 0;
+}
+
+#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
+
extern int acpi_blacklisted(void);
#ifdef CONFIG_DMI
extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
#define __BVEC_END(bio) bio_iovec_idx((bio), (bio)->bi_vcnt - 1)
#define __BVEC_START(bio) bio_iovec_idx((bio), (bio)->bi_idx)
+/* Default implementation of BIOVEC_PHYS_MERGEABLE */
+#define __BIOVEC_PHYS_MERGEABLE(vec1, vec2) \
+ ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
+
/*
* allow arch override, for eg virtualized architectures (put in asm/io.h)
*/
#ifndef BIOVEC_PHYS_MERGEABLE
#define BIOVEC_PHYS_MERGEABLE(vec1, vec2) \
- ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
+ __BIOVEC_PHYS_MERGEABLE(vec1, vec2)
#endif
#define __BIO_SEG_BOUNDARY(addr1, addr2, mask) \
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm/byteorder.h>
+#include <asm/system.h>
/* this is used only to give gcc a clue about good code generation */
union cnt32_to_63 {
* needed increment. And any race in updating the value in memory is harmless
* as the same value would simply be stored more than once.
*
- * The only restriction for the algorithm to work properly is that this
- * code must be executed at least once per each half period of the 32-bit
- * counter to properly update the state bit in memory. This is usually not a
- * problem in practice, but if it is then a kernel timer could be scheduled
- * to manage for this code to be executed often enough.
+ * The restrictions for the algorithm to work properly are:
+ *
+ * 1) this code must be called at least once per each half period of the
+ * 32-bit counter;
+ *
+ * 2) this code must not be preempted for a duration longer than the
+ * 32-bit counter half period minus the longest period between two
+ * calls to this code.
+ *
+ * Those requirements ensure proper update to the state bit in memory.
+ * This is usually not a problem in practice, but if it is then a kernel
+ * timer should be scheduled to manage for this code to be executed often
+ * enough.
*
* Note that the top bit (bit 63) in the returned value should be considered
* as garbage. It is not cleared here because callers are likely to use a
*/
#define cnt32_to_63(cnt_lo) \
({ \
- static volatile u32 __m_cnt_hi; \
+ static u32 __m_cnt_hi; \
union cnt32_to_63 __x; \
__x.hi = __m_cnt_hi; \
+ smp_rmb(); \
__x.lo = (cnt_lo); \
if (unlikely((s32)(__x.hi ^ __x.lo) < 0)) \
__m_cnt_hi = __x.hi = (__x.hi ^ 0x80000000) + (__x.hi >> 31); \
* Cpumasks provide a bitmap suitable for representing the
* set of CPU's in a system, one bit position per CPU number.
*
+ * The new cpumask_ ops take a "struct cpumask *"; the old ones
+ * use cpumask_t.
+ *
* See detailed comments in the file linux/bitmap.h describing the
* data type on which these cpumasks are based.
*
* will span the entire range of NR_CPUS.
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
*
- * The available cpumask operations are:
+ * The obsolescent cpumask operations are:
*
* void cpu_set(cpu, mask) turn on bit 'cpu' in mask
* void cpu_clear(cpu, mask) turn off bit 'cpu' in mask
#include <linux/threads.h>
#include <linux/bitmap.h>
-typedef struct { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
+typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
extern cpumask_t _unused_cpumask_arg_;
#define cpu_set(cpu, dst) __cpu_set((cpu), &(dst))
#define for_each_online_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_online_map)
#define for_each_present_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_present_map)
+/* These are the new versions of the cpumask operators: passed by pointer.
+ * The older versions will be implemented in terms of these, then deleted. */
+#define cpumask_bits(maskp) ((maskp)->bits)
+
+#if NR_CPUS <= BITS_PER_LONG
+#define CPU_BITS_ALL \
+{ \
+ [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
+}
+
+/* This produces more efficient code. */
+#define nr_cpumask_bits NR_CPUS
+
+#else /* NR_CPUS > BITS_PER_LONG */
+
+#define CPU_BITS_ALL \
+{ \
+ [0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL, \
+ [BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD \
+}
+
+#define nr_cpumask_bits nr_cpu_ids
+#endif /* NR_CPUS > BITS_PER_LONG */
+
+/* verify cpu argument to cpumask_* operators */
+static inline unsigned int cpumask_check(unsigned int cpu)
+{
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+ WARN_ON_ONCE(cpu >= nr_cpumask_bits);
+#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
+ return cpu;
+}
+
+#if NR_CPUS == 1
+/* Uniprocessor. Assume all masks are "1". */
+static inline unsigned int cpumask_first(const struct cpumask *srcp)
+{
+ return 0;
+}
+
+/* Valid inputs for n are -1 and 0. */
+static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+{
+ return n+1;
+}
+
+static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+{
+ return n+1;
+}
+
+static inline unsigned int cpumask_next_and(int n,
+ const struct cpumask *srcp,
+ const struct cpumask *andp)
+{
+ return n+1;
+}
+
+/* cpu must be a valid cpu, ie 0, so there's no other choice. */
+static inline unsigned int cpumask_any_but(const struct cpumask *mask,
+ unsigned int cpu)
+{
+ return 1;
+}
+
+#define for_each_cpu(cpu, mask) \
+ for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
+#define for_each_cpu_and(cpu, mask, and) \
+ for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
+#else
+/**
+ * cpumask_first - get the first cpu in a cpumask
+ * @srcp: the cpumask pointer
+ *
+ * Returns >= nr_cpu_ids if no cpus set.
+ */
+static inline unsigned int cpumask_first(const struct cpumask *srcp)
+{
+ return find_first_bit(cpumask_bits(srcp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_next - get the next cpu in a cpumask
+ * @n: the cpu prior to the place to search (ie. return will be > @n)
+ * @srcp: the cpumask pointer
+ *
+ * Returns >= nr_cpu_ids if no further cpus set.
+ */
+static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+{
+ /* -1 is a legal arg here. */
+ if (n != -1)
+ cpumask_check(n);
+ return find_next_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
+}
+
+/**
+ * cpumask_next_zero - get the next unset cpu in a cpumask
+ * @n: the cpu prior to the place to search (ie. return will be > @n)
+ * @srcp: the cpumask pointer
+ *
+ * Returns >= nr_cpu_ids if no further cpus unset.
+ */
+static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+{
+ /* -1 is a legal arg here. */
+ if (n != -1)
+ cpumask_check(n);
+ return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
+}
+
+int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
+int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
+
+/**
+ * for_each_cpu - iterate over every cpu in a mask
+ * @cpu: the (optionally unsigned) integer iterator
+ * @mask: the cpumask pointer
+ *
+ * After the loop, cpu is >= nr_cpu_ids.
+ */
+#define for_each_cpu(cpu, mask) \
+ for ((cpu) = -1; \
+ (cpu) = cpumask_next((cpu), (mask)), \
+ (cpu) < nr_cpu_ids;)
+
+/**
+ * for_each_cpu_and - iterate over every cpu in both masks
+ * @cpu: the (optionally unsigned) integer iterator
+ * @mask: the first cpumask pointer
+ * @and: the second cpumask pointer
+ *
+ * This saves a temporary CPU mask in many places. It is equivalent to:
+ * struct cpumask tmp;
+ * cpumask_and(&tmp, &mask, &and);
+ * for_each_cpu(cpu, &tmp)
+ * ...
+ *
+ * After the loop, cpu is >= nr_cpu_ids.
+ */
+#define for_each_cpu_and(cpu, mask, and) \
+ for ((cpu) = -1; \
+ (cpu) = cpumask_next_and((cpu), (mask), (and)), \
+ (cpu) < nr_cpu_ids;)
+#endif /* SMP */
+
+#define CPU_BITS_NONE \
+{ \
+ [0 ... BITS_TO_LONGS(NR_CPUS)-1] = 0UL \
+}
+
+#define CPU_BITS_CPU0 \
+{ \
+ [0] = 1UL \
+}
+
+/**
+ * cpumask_set_cpu - set a cpu in a cpumask
+ * @cpu: cpu number (< nr_cpu_ids)
+ * @dstp: the cpumask pointer
+ */
+static inline void cpumask_set_cpu(unsigned int cpu, struct cpumask *dstp)
+{
+ set_bit(cpumask_check(cpu), cpumask_bits(dstp));
+}
+
+/**
+ * cpumask_clear_cpu - clear a cpu in a cpumask
+ * @cpu: cpu number (< nr_cpu_ids)
+ * @dstp: the cpumask pointer
+ */
+static inline void cpumask_clear_cpu(int cpu, struct cpumask *dstp)
+{
+ clear_bit(cpumask_check(cpu), cpumask_bits(dstp));
+}
+
+/**
+ * cpumask_test_cpu - test for a cpu in a cpumask
+ * @cpu: cpu number (< nr_cpu_ids)
+ * @cpumask: the cpumask pointer
+ *
+ * No static inline type checking - see Subtlety (1) above.
+ */
+#define cpumask_test_cpu(cpu, cpumask) \
+ test_bit(cpumask_check(cpu), (cpumask)->bits)
+
+/**
+ * cpumask_test_and_set_cpu - atomically test and set a cpu in a cpumask
+ * @cpu: cpu number (< nr_cpu_ids)
+ * @cpumask: the cpumask pointer
+ *
+ * test_and_set_bit wrapper for cpumasks.
+ */
+static inline int cpumask_test_and_set_cpu(int cpu, struct cpumask *cpumask)
+{
+ return test_and_set_bit(cpumask_check(cpu), cpumask_bits(cpumask));
+}
+
+/**
+ * cpumask_setall - set all cpus (< nr_cpu_ids) in a cpumask
+ * @dstp: the cpumask pointer
+ */
+static inline void cpumask_setall(struct cpumask *dstp)
+{
+ bitmap_fill(cpumask_bits(dstp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_clear - clear all cpus (< nr_cpu_ids) in a cpumask
+ * @dstp: the cpumask pointer
+ */
+static inline void cpumask_clear(struct cpumask *dstp)
+{
+ bitmap_zero(cpumask_bits(dstp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_and - *dstp = *src1p & *src2p
+ * @dstp: the cpumask result
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline void cpumask_and(struct cpumask *dstp,
+ const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ bitmap_and(cpumask_bits(dstp), cpumask_bits(src1p),
+ cpumask_bits(src2p), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_or - *dstp = *src1p | *src2p
+ * @dstp: the cpumask result
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline void cpumask_or(struct cpumask *dstp, const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ bitmap_or(cpumask_bits(dstp), cpumask_bits(src1p),
+ cpumask_bits(src2p), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_xor - *dstp = *src1p ^ *src2p
+ * @dstp: the cpumask result
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline void cpumask_xor(struct cpumask *dstp,
+ const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ bitmap_xor(cpumask_bits(dstp), cpumask_bits(src1p),
+ cpumask_bits(src2p), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_andnot - *dstp = *src1p & ~*src2p
+ * @dstp: the cpumask result
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline void cpumask_andnot(struct cpumask *dstp,
+ const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ bitmap_andnot(cpumask_bits(dstp), cpumask_bits(src1p),
+ cpumask_bits(src2p), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_complement - *dstp = ~*srcp
+ * @dstp: the cpumask result
+ * @srcp: the input to invert
+ */
+static inline void cpumask_complement(struct cpumask *dstp,
+ const struct cpumask *srcp)
+{
+ bitmap_complement(cpumask_bits(dstp), cpumask_bits(srcp),
+ nr_cpumask_bits);
+}
+
+/**
+ * cpumask_equal - *src1p == *src2p
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline bool cpumask_equal(const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ return bitmap_equal(cpumask_bits(src1p), cpumask_bits(src2p),
+ nr_cpumask_bits);
+}
+
+/**
+ * cpumask_intersects - (*src1p & *src2p) != 0
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline bool cpumask_intersects(const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ return bitmap_intersects(cpumask_bits(src1p), cpumask_bits(src2p),
+ nr_cpumask_bits);
+}
+
+/**
+ * cpumask_subset - (*src1p & ~*src2p) == 0
+ * @src1p: the first input
+ * @src2p: the second input
+ */
+static inline int cpumask_subset(const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ return bitmap_subset(cpumask_bits(src1p), cpumask_bits(src2p),
+ nr_cpumask_bits);
+}
+
+/**
+ * cpumask_empty - *srcp == 0
+ * @srcp: the cpumask to that all cpus < nr_cpu_ids are clear.
+ */
+static inline bool cpumask_empty(const struct cpumask *srcp)
+{
+ return bitmap_empty(cpumask_bits(srcp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_full - *srcp == 0xFFFFFFFF...
+ * @srcp: the cpumask to that all cpus < nr_cpu_ids are set.
+ */
+static inline bool cpumask_full(const struct cpumask *srcp)
+{
+ return bitmap_full(cpumask_bits(srcp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_weight - Count of bits in *srcp
+ * @srcp: the cpumask to count bits (< nr_cpu_ids) in.
+ */
+static inline unsigned int cpumask_weight(const struct cpumask *srcp)
+{
+ return bitmap_weight(cpumask_bits(srcp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_shift_right - *dstp = *srcp >> n
+ * @dstp: the cpumask result
+ * @srcp: the input to shift
+ * @n: the number of bits to shift by
+ */
+static inline void cpumask_shift_right(struct cpumask *dstp,
+ const struct cpumask *srcp, int n)
+{
+ bitmap_shift_right(cpumask_bits(dstp), cpumask_bits(srcp), n,
+ nr_cpumask_bits);
+}
+
+/**
+ * cpumask_shift_left - *dstp = *srcp << n
+ * @dstp: the cpumask result
+ * @srcp: the input to shift
+ * @n: the number of bits to shift by
+ */
+static inline void cpumask_shift_left(struct cpumask *dstp,
+ const struct cpumask *srcp, int n)
+{
+ bitmap_shift_left(cpumask_bits(dstp), cpumask_bits(srcp), n,
+ nr_cpumask_bits);
+}
+
+/**
+ * cpumask_copy - *dstp = *srcp
+ * @dstp: the result
+ * @srcp: the input cpumask
+ */
+static inline void cpumask_copy(struct cpumask *dstp,
+ const struct cpumask *srcp)
+{
+ bitmap_copy(cpumask_bits(dstp), cpumask_bits(srcp), nr_cpumask_bits);
+}
+
+/**
+ * cpumask_any - pick a "random" cpu from *srcp
+ * @srcp: the input cpumask
+ *
+ * Returns >= nr_cpu_ids if no cpus set.
+ */
+#define cpumask_any(srcp) cpumask_first(srcp)
+
+/**
+ * cpumask_first_and - return the first cpu from *srcp1 & *srcp2
+ * @src1p: the first input
+ * @src2p: the second input
+ *
+ * Returns >= nr_cpu_ids if no cpus set in both. See also cpumask_next_and().
+ */
+#define cpumask_first_and(src1p, src2p) cpumask_next_and(-1, (src1p), (src2p))
+
+/**
+ * cpumask_any_and - pick a "random" cpu from *mask1 & *mask2
+ * @mask1: the first input cpumask
+ * @mask2: the second input cpumask
+ *
+ * Returns >= nr_cpu_ids if no cpus set.
+ */
+#define cpumask_any_and(mask1, mask2) cpumask_first_and((mask1), (mask2))
+
+/**
+ * cpumask_of - the cpumask containing just a given cpu
+ * @cpu: the cpu (<= nr_cpu_ids)
+ */
+#define cpumask_of(cpu) (get_cpu_mask(cpu))
+
+/**
+ * to_cpumask - convert an NR_CPUS bitmap to a struct cpumask *
+ * @bitmap: the bitmap
+ *
+ * There are a few places where cpumask_var_t isn't appropriate and
+ * static cpumasks must be used (eg. very early boot), yet we don't
+ * expose the definition of 'struct cpumask'.
+ *
+ * This does the conversion, and can be used as a constant initializer.
+ */
+#define to_cpumask(bitmap) \
+ ((struct cpumask *)(1 ? (bitmap) \
+ : (void *)sizeof(__check_is_bitmap(bitmap))))
+
+static inline int __check_is_bitmap(const unsigned long *bitmap)
+{
+ return 1;
+}
+
+/**
+ * cpumask_size - size to allocate for a 'struct cpumask' in bytes
+ *
+ * This will eventually be a runtime variable, depending on nr_cpu_ids.
+ */
+static inline size_t cpumask_size(void)
+{
+ /* FIXME: Once all cpumask assignments are eliminated, this
+ * can be nr_cpumask_bits */
+ return BITS_TO_LONGS(NR_CPUS) * sizeof(long);
+}
+
+/*
+ * cpumask_var_t: struct cpumask for stack usage.
+ *
+ * Oh, the wicked games we play! In order to make kernel coding a
+ * little more difficult, we typedef cpumask_var_t to an array or a
+ * pointer: doing &mask on an array is a noop, so it still works.
+ *
+ * ie.
+ * cpumask_var_t tmpmask;
+ * if (!alloc_cpumask_var(&tmpmask, GFP_KERNEL))
+ * return -ENOMEM;
+ *
+ * ... use 'tmpmask' like a normal struct cpumask * ...
+ *
+ * free_cpumask_var(tmpmask);
+ */
+#ifdef CONFIG_CPUMASK_OFFSTACK
+typedef struct cpumask *cpumask_var_t;
+
+bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags);
+void alloc_bootmem_cpumask_var(cpumask_var_t *mask);
+void free_cpumask_var(cpumask_var_t mask);
+void free_bootmem_cpumask_var(cpumask_var_t mask);
+
+#else
+typedef struct cpumask cpumask_var_t[1];
+
+static inline bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
+{
+ return true;
+}
+
+static inline void alloc_bootmem_cpumask_var(cpumask_var_t *mask)
+{
+}
+
+static inline void free_cpumask_var(cpumask_var_t mask)
+{
+}
+
+static inline void free_bootmem_cpumask_var(cpumask_var_t mask)
+{
+}
+#endif /* CONFIG_CPUMASK_OFFSTACK */
+
+/* The pointer versions of the maps, these will become the primary versions. */
+#define cpu_possible_mask ((const struct cpumask *)&cpu_possible_map)
+#define cpu_online_mask ((const struct cpumask *)&cpu_online_map)
+#define cpu_present_mask ((const struct cpumask *)&cpu_present_map)
+#define cpu_active_mask ((const struct cpumask *)&cpu_active_map)
+
+/* It's common to want to use cpu_all_mask in struct member initializers,
+ * so it has to refer to an address rather than a pointer. */
+extern const DECLARE_BITMAP(cpu_all_bits, NR_CPUS);
+#define cpu_all_mask to_cpumask(cpu_all_bits)
+
+/* First bits of cpu_bit_bitmap are in fact unset. */
+#define cpu_none_mask to_cpumask(cpu_bit_bitmap[0])
+
+/* Wrappers for arch boot code to manipulate normally-constant masks */
+static inline void set_cpu_possible(unsigned int cpu, bool possible)
+{
+ if (possible)
+ cpumask_set_cpu(cpu, &cpu_possible_map);
+ else
+ cpumask_clear_cpu(cpu, &cpu_possible_map);
+}
+
+static inline void set_cpu_present(unsigned int cpu, bool present)
+{
+ if (present)
+ cpumask_set_cpu(cpu, &cpu_present_map);
+ else
+ cpumask_clear_cpu(cpu, &cpu_present_map);
+}
+
+static inline void set_cpu_online(unsigned int cpu, bool online)
+{
+ if (online)
+ cpumask_set_cpu(cpu, &cpu_online_map);
+ else
+ cpumask_clear_cpu(cpu, &cpu_online_map);
+}
+
+static inline void set_cpu_active(unsigned int cpu, bool active)
+{
+ if (active)
+ cpumask_set_cpu(cpu, &cpu_active_map);
+ else
+ cpumask_clear_cpu(cpu, &cpu_active_map);
+}
+
+static inline void init_cpu_present(const struct cpumask *src)
+{
+ cpumask_copy(&cpu_present_map, src);
+}
+
+static inline void init_cpu_possible(const struct cpumask *src)
+{
+ cpumask_copy(&cpu_possible_map, src);
+}
+
+static inline void init_cpu_online(const struct cpumask *src)
+{
+ cpumask_copy(&cpu_online_map, src);
+}
#endif /* __LINUX_CPUMASK_H */
timer->_softexpires = ktime_add_safe(timer->_softexpires, time);
}
-static inline void hrtimer_add_expires_ns(struct hrtimer *timer, unsigned long ns)
+static inline void hrtimer_add_expires_ns(struct hrtimer *timer, u64 ns)
{
timer->_expires = ktime_add_ns(timer->_expires, ns);
timer->_softexpires = ktime_add_ns(timer->_softexpires, ns);
extern int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
u16 vlan_tci, int polling);
+extern int vlan_hwaccel_do_receive(struct sk_buff *skb);
+
#else
static inline struct net_device *vlan_dev_real_dev(const struct net_device *dev)
{
BUG();
return NET_XMIT_SUCCESS;
}
+
+static inline int vlan_hwaccel_do_receive(struct sk_buff *skb)
+{
+ return 0;
+}
#endif
/**
ATA_HORKAGE_IVB = (1 << 8), /* cbl det validity bit bugs */
ATA_HORKAGE_STUCK_ERR = (1 << 9), /* stuck ERR on next PACKET */
ATA_HORKAGE_BRIDGE_OK = (1 << 10), /* no bridge limits */
+ ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands
+ not multiple of 16 bytes */
/* DMA mask for user DMA control: User visible values; DO NOT
renumber */
unsigned int cbl; /* cable type; ATA_CBL_xxx */
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
+ unsigned long qc_allocated;
unsigned int qc_active;
int nr_active_links; /* #links with active qcs */
#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
#define mmc_card_name(c) ((c)->cid.prod_name)
-#define mmc_card_id(c) ((c)->dev.bus_id)
+#define mmc_card_id(c) (dev_name(&(c)->dev))
#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
#define mmc_dev(x) ((x)->parent)
#define mmc_classdev(x) (&(x)->class_dev)
-#define mmc_hostname(x) ((x)->class_dev.bus_id)
+#define mmc_hostname(x) (dev_name(&(x)->class_dev))
extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
extern int mmc_resume_host(struct mmc_host *);
#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)
-#define sdio_func_id(f) ((f)->dev.bus_id)
+#define sdio_func_id(f) (dev_name(&(f)->dev))
#define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev)
#define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d)
#define DELETED_FLAG 0xe5 /* marks file as deleted when in name[0] */
#define IS_FREE(n) (!*(n) || *(n) == DELETED_FLAG)
-/* valid file mode bits */
-#define MSDOS_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO)
-/* Convert attribute bits and a mask to the UNIX mode. */
-#define MSDOS_MKMODE(a, m) (m & (a & ATTR_RO ? S_IRUGO|S_IXUGO : S_IRWXUGO))
-
#define MSDOS_NAME 11 /* maximum name length */
#define MSDOS_LONGNAME 256 /* maximum name length */
#define MSDOS_SLOTS 21 /* max # of slots for short and long names */
};
#ifdef __KERNEL__
-
-#include <linux/buffer_head.h>
-#include <linux/string.h>
-#include <linux/nls.h>
-#include <linux/fs.h>
-#include <linux/mutex.h>
-
-/*
- * vfat shortname flags
- */
-#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */
-#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */
-#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */
-#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */
-#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */
-
-struct fat_mount_options {
- uid_t fs_uid;
- gid_t fs_gid;
- unsigned short fs_fmask;
- unsigned short fs_dmask;
- unsigned short codepage; /* Codepage for shortname conversions */
- char *iocharset; /* Charset used for filename input/display */
- unsigned short shortname; /* flags for shortname display/create rule */
- unsigned char name_check; /* r = relaxed, n = normal, s = strict */
- unsigned short allow_utime;/* permission for setting the [am]time */
- unsigned quiet:1, /* set = fake successful chmods and chowns */
- showexec:1, /* set = only set x bit for com/exe/bat */
- sys_immutable:1, /* set = system files are immutable */
- dotsOK:1, /* set = hidden and system files are named '.filename' */
- isvfat:1, /* 0=no vfat long filename support, 1=vfat support */
- utf8:1, /* Use of UTF-8 character set (Default) */
- unicode_xlate:1, /* create escape sequences for unhandled Unicode */
- numtail:1, /* Does first alias have a numeric '~1' type tail? */
- flush:1, /* write things quickly */
- nocase:1, /* Does this need case conversion? 0=need case conversion*/
- usefree:1, /* Use free_clusters for FAT32 */
- tz_utc:1; /* Filesystem timestamps are in UTC */
-};
-
-#define FAT_HASH_BITS 8
-#define FAT_HASH_SIZE (1UL << FAT_HASH_BITS)
-#define FAT_HASH_MASK (FAT_HASH_SIZE-1)
-
-/*
- * MS-DOS file system in-core superblock data
- */
-struct msdos_sb_info {
- unsigned short sec_per_clus; /* sectors/cluster */
- unsigned short cluster_bits; /* log2(cluster_size) */
- unsigned int cluster_size; /* cluster size */
- unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */
- unsigned short fat_start;
- unsigned long fat_length; /* FAT start & length (sec.) */
- unsigned long dir_start;
- unsigned short dir_entries; /* root dir start & entries */
- unsigned long data_start; /* first data sector */
- unsigned long max_cluster; /* maximum cluster number */
- unsigned long root_cluster; /* first cluster of the root directory */
- unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */
- struct mutex fat_lock;
- unsigned int prev_free; /* previously allocated cluster number */
- unsigned int free_clusters; /* -1 if undefined */
- unsigned int free_clus_valid; /* is free_clusters valid? */
- struct fat_mount_options options;
- struct nls_table *nls_disk; /* Codepage used on disk */
- struct nls_table *nls_io; /* Charset used for input and display */
- const void *dir_ops; /* Opaque; default directory operations */
- int dir_per_block; /* dir entries per block */
- int dir_per_block_bits; /* log2(dir_per_block) */
-
- int fatent_shift;
- struct fatent_operations *fatent_ops;
-
- spinlock_t inode_hash_lock;
- struct hlist_head inode_hashtable[FAT_HASH_SIZE];
-};
-
-#define FAT_CACHE_VALID 0 /* special case for valid cache */
-
-/*
- * MS-DOS file system inode data in memory
- */
-struct msdos_inode_info {
- spinlock_t cache_lru_lock;
- struct list_head cache_lru;
- int nr_caches;
- /* for avoiding the race between fat_free() and fat_get_cluster() */
- unsigned int cache_valid_id;
-
- loff_t mmu_private;
- int i_start; /* first cluster or 0 */
- int i_logstart; /* logical first cluster */
- int i_attrs; /* unused attribute bits */
- loff_t i_pos; /* on-disk position of directory entry or 0 */
- struct hlist_node i_fat_hash; /* hash by i_location */
- struct inode vfs_inode;
-};
-
-struct fat_slot_info {
- loff_t i_pos; /* on-disk position of directory entry */
- loff_t slot_off; /* offset for slot or de start */
- int nr_slots; /* number of slots + 1(de) in filename */
- struct msdos_dir_entry *de;
- struct buffer_head *bh;
-};
-
-static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb)
-{
- return sb->s_fs_info;
-}
-
-static inline struct msdos_inode_info *MSDOS_I(struct inode *inode)
-{
- return container_of(inode, struct msdos_inode_info, vfs_inode);
-}
-
-/* Return the FAT attribute byte for this inode */
-static inline u8 fat_attr(struct inode *inode)
-{
- return ((inode->i_mode & S_IWUGO) ? ATTR_NONE : ATTR_RO) |
- (S_ISDIR(inode->i_mode) ? ATTR_DIR : ATTR_NONE) |
- MSDOS_I(inode)->i_attrs;
-}
-
-static inline unsigned char fat_checksum(const __u8 *name)
-{
- unsigned char s = name[0];
- s = (s<<7) + (s>>1) + name[1]; s = (s<<7) + (s>>1) + name[2];
- s = (s<<7) + (s>>1) + name[3]; s = (s<<7) + (s>>1) + name[4];
- s = (s<<7) + (s>>1) + name[5]; s = (s<<7) + (s>>1) + name[6];
- s = (s<<7) + (s>>1) + name[7]; s = (s<<7) + (s>>1) + name[8];
- s = (s<<7) + (s>>1) + name[9]; s = (s<<7) + (s>>1) + name[10];
- return s;
-}
-
-static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus)
-{
- return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus
- + sbi->data_start;
-}
-
-static inline void fat16_towchar(wchar_t *dst, const __u8 *src, size_t len)
-{
-#ifdef __BIG_ENDIAN
- while (len--) {
- *dst++ = src[0] | (src[1] << 8);
- src += 2;
- }
-#else
- memcpy(dst, src, len * 2);
-#endif
-}
-
-static inline void fatwchar_to16(__u8 *dst, const wchar_t *src, size_t len)
-{
-#ifdef __BIG_ENDIAN
- while (len--) {
- dst[0] = *src & 0x00FF;
- dst[1] = (*src & 0xFF00) >> 8;
- dst += 2;
- src++;
- }
-#else
- memcpy(dst, src, len * 2);
-#endif
-}
-
/* media of boot sector */
static inline int fat_valid_media(u8 media)
{
return 0xf8 <= media || media == 0xf0;
}
-
-/* fat/cache.c */
-extern void fat_cache_inval_inode(struct inode *inode);
-extern int fat_get_cluster(struct inode *inode, int cluster,
- int *fclus, int *dclus);
-extern int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
- unsigned long *mapped_blocks);
-
-/* fat/dir.c */
-extern const struct file_operations fat_dir_operations;
-extern int fat_search_long(struct inode *inode, const unsigned char *name,
- int name_len, struct fat_slot_info *sinfo);
-extern int fat_dir_empty(struct inode *dir);
-extern int fat_subdirs(struct inode *dir);
-extern int fat_scan(struct inode *dir, const unsigned char *name,
- struct fat_slot_info *sinfo);
-extern int fat_get_dotdot_entry(struct inode *dir, struct buffer_head **bh,
- struct msdos_dir_entry **de, loff_t *i_pos);
-extern int fat_alloc_new_dir(struct inode *dir, struct timespec *ts);
-extern int fat_add_entries(struct inode *dir, void *slots, int nr_slots,
- struct fat_slot_info *sinfo);
-extern int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo);
-
-/* fat/fatent.c */
-struct fat_entry {
- int entry;
- union {
- u8 *ent12_p[2];
- __le16 *ent16_p;
- __le32 *ent32_p;
- } u;
- int nr_bhs;
- struct buffer_head *bhs[2];
-};
-
-static inline void fatent_init(struct fat_entry *fatent)
-{
- fatent->nr_bhs = 0;
- fatent->entry = 0;
- fatent->u.ent32_p = NULL;
- fatent->bhs[0] = fatent->bhs[1] = NULL;
-}
-
-static inline void fatent_set_entry(struct fat_entry *fatent, int entry)
-{
- fatent->entry = entry;
- fatent->u.ent32_p = NULL;
-}
-
-static inline void fatent_brelse(struct fat_entry *fatent)
-{
- int i;
- fatent->u.ent32_p = NULL;
- for (i = 0; i < fatent->nr_bhs; i++)
- brelse(fatent->bhs[i]);
- fatent->nr_bhs = 0;
- fatent->bhs[0] = fatent->bhs[1] = NULL;
-}
-
-extern void fat_ent_access_init(struct super_block *sb);
-extern int fat_ent_read(struct inode *inode, struct fat_entry *fatent,
- int entry);
-extern int fat_ent_write(struct inode *inode, struct fat_entry *fatent,
- int new, int wait);
-extern int fat_alloc_clusters(struct inode *inode, int *cluster,
- int nr_cluster);
-extern int fat_free_clusters(struct inode *inode, int cluster);
-extern int fat_count_free_clusters(struct super_block *sb);
-
-/* fat/file.c */
-extern int fat_generic_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg);
-extern const struct file_operations fat_file_operations;
-extern const struct inode_operations fat_file_inode_operations;
-extern int fat_setattr(struct dentry * dentry, struct iattr * attr);
-extern void fat_truncate(struct inode *inode);
-extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
-
-/* fat/inode.c */
-extern void fat_attach(struct inode *inode, loff_t i_pos);
-extern void fat_detach(struct inode *inode);
-extern struct inode *fat_iget(struct super_block *sb, loff_t i_pos);
-extern struct inode *fat_build_inode(struct super_block *sb,
- struct msdos_dir_entry *de, loff_t i_pos);
-extern int fat_sync_inode(struct inode *inode);
-extern int fat_fill_super(struct super_block *sb, void *data, int silent,
- const struct inode_operations *fs_dir_inode_ops, int isvfat);
-
-extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
- struct inode *i2);
-/* fat/misc.c */
-extern void fat_fs_panic(struct super_block *s, const char *fmt, ...);
-extern void fat_clusters_flush(struct super_block *sb);
-extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
-extern int date_dos2unix(unsigned short time, unsigned short date, int tz_utc);
-extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date,
- int tz_utc);
-extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs);
-
-int fat_cache_init(void);
-void fat_cache_destroy(void);
-
-#endif /* __KERNEL__ */
-
-#endif
+#endif /* !__KERNEL__ */
+#endif /* !_LINUX_MSDOS_FS_H */
/*
* Returns the command address according to the given geometry.
*/
-static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, int interleave, int type)
+static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs,
+ struct map_info *map, struct cfi_private *cfi)
{
- return (cmd_ofs * type) * interleave;
+ unsigned bankwidth = map_bankwidth(map);
+ unsigned interleave = cfi_interleave(cfi);
+ unsigned type = cfi->device_type;
+ uint32_t addr;
+
+ addr = (cmd_ofs * type) * interleave;
+
+ /* Modify the unlock address if we are in compatiblity mode.
+ * For 16bit devices on 8 bit busses
+ * and 32bit devices on 16 bit busses
+ * set the low bit of the alternating bit sequence of the address.
+ */
+ if (((type * interleave) > bankwidth) && ((uint8_t)cmd_ofs == 0xaa))
+ addr |= (type >> 1)*interleave;
+
+ return addr;
}
/*
int type, map_word *prev_val)
{
map_word val;
- uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, cfi_interleave(cfi), type);
+ uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, map, cfi);
val = cfi_build_cmd(cmd, map, cfi);
if (prev_val)
#endif
#ifdef CONFIG_HAS_IOMEM
-static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar)
+static inline void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar)
{
/*
* Make sure the BAR is actually a memory resource, not an IO resource
*/
unsigned long timer_slack_ns;
unsigned long default_timer_slack_ns;
+
+ struct list_head *scm_work_list;
};
/*
* Call a function on all other processors
*/
int smp_call_function(void(*func)(void *info), void *info, int wait);
+/* Deprecated: use smp_call_function_many() which uses a cpumask ptr. */
int smp_call_function_mask(cpumask_t mask, void(*func)(void *info), void *info,
int wait);
+
+static inline void smp_call_function_many(const struct cpumask *mask,
+ void (*func)(void *info), void *info,
+ int wait)
+{
+ smp_call_function_mask(*mask, func, info, wait);
+}
+
int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
int wait);
void __smp_call_function_single(int cpuid, struct call_single_data *data);
unsigned long round_jiffies(unsigned long j);
unsigned long round_jiffies_relative(unsigned long j);
+unsigned long __round_jiffies_up(unsigned long j, int cpu);
+unsigned long __round_jiffies_up_relative(unsigned long j, int cpu);
+unsigned long round_jiffies_up(unsigned long j);
+unsigned long round_jiffies_up_relative(unsigned long j);
+
#endif
| SD_BALANCE_FORK \
| SD_BALANCE_EXEC \
| SD_WAKE_AFFINE \
- | SD_WAKE_IDLE \
+ | SD_WAKE_BALANCE \
| SD_SHARE_CPUPOWER, \
.last_balance = jiffies, \
.balance_interval = 1, \
.wake_idx = 1, \
.forkexec_idx = 1, \
.flags = SD_LOAD_BALANCE \
- | SD_BALANCE_NEWIDLE \
| SD_BALANCE_FORK \
| SD_BALANCE_EXEC \
| SD_WAKE_AFFINE \
+ | SD_WAKE_BALANCE \
| SD_SHARE_PKG_RESOURCES\
| BALANCE_FOR_MC_POWER, \
.last_balance = jiffies, \
.wake_idx = 1, \
.forkexec_idx = 1, \
.flags = SD_LOAD_BALANCE \
- | SD_BALANCE_NEWIDLE \
- | SD_BALANCE_FORK \
| SD_BALANCE_EXEC \
+ | SD_BALANCE_FORK \
| SD_WAKE_AFFINE \
+ | SD_WAKE_BALANCE \
| BALANCE_FOR_PKG_POWER,\
.last_balance = jiffies, \
.balance_interval = 1, \
cancel_delayed_work_sync(work);
}
+#ifndef CONFIG_SMP
+static inline long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg)
+{
+ return fn(arg);
+}
+#else
+long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg);
+#endif /* CONFIG_SMP */
#endif
atomic_long_t inflight;
spinlock_t lock;
unsigned int gc_candidate : 1;
+ unsigned int gc_maybe_cycle : 1;
wait_queue_head_t peer_wait;
};
#define unix_sk(__sk) ((struct unix_sock *)__sk)
struct scm_fp_list
{
- int count;
- struct file *fp[SCM_MAX_FD];
+ struct list_head list;
+ int count;
+ struct file *fp[SCM_MAX_FD];
};
struct scm_cookie
#else /* !CONFIG_SND_DEBUG */
-#define snd_printd(fmt, args...) /* nothing */
-#define snd_BUG() /* nothing */
-#define snd_BUG_ON(cond) ({/*(void)(cond);*/ 0;}) /* always false */
+#define snd_printd(fmt, args...) do { } while (0)
+#define snd_BUG() do { } while (0)
+static inline int __snd_bug_on(void)
+{
+ return 0;
+}
+#define snd_BUG_ON(cond) __snd_bug_on() /* always false */
#endif /* CONFIG_SND_DEBUG */
list_del(&cgrp->sibling);
spin_lock(&cgrp->dentry->d_lock);
d = dget(cgrp->dentry);
- cgrp->dentry = NULL;
spin_unlock(&d->d_lock);
cgroup_d_remove_dir(d);
#endif
};
EXPORT_SYMBOL_GPL(cpu_bit_bitmap);
+
+const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL;
+EXPORT_SYMBOL(cpu_all_bits);
* 'curr' points to currently running entity on this cfs_rq.
* It is set to NULL otherwise (i.e when none are currently running).
*/
- struct sched_entity *curr, *next;
+ struct sched_entity *curr, *next, *last;
unsigned long nr_spread_over;
/*
* Buddy candidates are cache hot:
*/
- if (sched_feat(CACHE_HOT_BUDDY) && (&p->se == cfs_rq_of(&p->se)->next))
+ if (sched_feat(CACHE_HOT_BUDDY) &&
+ (&p->se == cfs_rq_of(&p->se)->next ||
+ &p->se == cfs_rq_of(&p->se)->last))
return 1;
if (p->sched_class != &fair_sched_class)
struct sched_domain *tmp;
/* Remove the sched domains which do not contribute to scheduling. */
- for (tmp = sd; tmp; tmp = tmp->parent) {
+ for (tmp = sd; tmp; ) {
struct sched_domain *parent = tmp->parent;
if (!parent)
break;
+
if (sd_parent_degenerate(tmp, parent)) {
tmp->parent = parent->parent;
if (parent->parent)
parent->parent->child = tmp;
- }
+ } else
+ tmp = tmp->parent;
}
if (sd && sd_degenerate(sd)) {
error:
free_sched_groups(cpu_map, tmpmask);
SCHED_CPUMASK_FREE((void *)allmasks);
+ kfree(rd);
return -ENOMEM;
#endif
}
cfs_rq->rb_leftmost = next_node;
}
- if (cfs_rq->next == se)
- cfs_rq->next = NULL;
-
rb_erase(&se->run_node, &cfs_rq->tasks_timeline);
}
-static inline struct rb_node *first_fair(struct cfs_rq *cfs_rq)
-{
- return cfs_rq->rb_leftmost;
-}
-
static struct sched_entity *__pick_next_entity(struct cfs_rq *cfs_rq)
{
- return rb_entry(first_fair(cfs_rq), struct sched_entity, run_node);
+ struct rb_node *left = cfs_rq->rb_leftmost;
+
+ if (!left)
+ return NULL;
+
+ return rb_entry(left, struct sched_entity, run_node);
}
-static inline struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
+static struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
{
struct rb_node *last = rb_last(&cfs_rq->tasks_timeline);
#endif
}
+ if (cfs_rq->last == se)
+ cfs_rq->last = NULL;
+
+ if (cfs_rq->next == se)
+ cfs_rq->next = NULL;
+
if (se != cfs_rq->curr)
__dequeue_entity(cfs_rq, se);
account_entity_dequeue(cfs_rq, se);
static int
wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se);
-static struct sched_entity *
-pick_next(struct cfs_rq *cfs_rq, struct sched_entity *se)
-{
- if (!cfs_rq->next || wakeup_preempt_entity(cfs_rq->next, se) == 1)
- return se;
-
- return cfs_rq->next;
-}
-
static struct sched_entity *pick_next_entity(struct cfs_rq *cfs_rq)
{
- struct sched_entity *se = NULL;
+ struct sched_entity *se = __pick_next_entity(cfs_rq);
- if (first_fair(cfs_rq)) {
- se = __pick_next_entity(cfs_rq);
- se = pick_next(cfs_rq, se);
- set_next_entity(cfs_rq, se);
- }
+ if (cfs_rq->next && wakeup_preempt_entity(cfs_rq->next, se) < 1)
+ return cfs_rq->next;
+
+ if (cfs_rq->last && wakeup_preempt_entity(cfs_rq->last, se) < 1)
+ return cfs_rq->last;
return se;
}
return 0;
}
+static void set_last_buddy(struct sched_entity *se)
+{
+ for_each_sched_entity(se)
+ cfs_rq_of(se)->last = se;
+}
+
+static void set_next_buddy(struct sched_entity *se)
+{
+ for_each_sched_entity(se)
+ cfs_rq_of(se)->next = se;
+}
+
/*
* Preempt the current task with a newly woken task if needed:
*/
static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int sync)
{
struct task_struct *curr = rq->curr;
- struct cfs_rq *cfs_rq = task_cfs_rq(curr);
struct sched_entity *se = &curr->se, *pse = &p->se;
if (unlikely(rt_prio(p->prio))) {
+ struct cfs_rq *cfs_rq = task_cfs_rq(curr);
+
update_rq_clock(rq);
update_curr(cfs_rq);
resched_task(curr);
return;
}
+ if (unlikely(p->sched_class != &fair_sched_class))
+ return;
+
if (unlikely(se == pse))
return;
- cfs_rq_of(pse)->next = pse;
+ /*
+ * Only set the backward buddy when the current task is still on the
+ * rq. This can happen when a wakeup gets interleaved with schedule on
+ * the ->pre_schedule() or idle_balance() point, either of which can
+ * drop the rq lock.
+ *
+ * Also, during early boot the idle thread is in the fair class, for
+ * obvious reasons its a bad idea to schedule back to the idle thread.
+ */
+ if (sched_feat(LAST_BUDDY) && likely(se->on_rq && curr != rq->idle))
+ set_last_buddy(se);
+ set_next_buddy(pse);
/*
* We can come here with TIF_NEED_RESCHED already set from new task
do {
se = pick_next_entity(cfs_rq);
+ set_next_entity(cfs_rq, se);
cfs_rq = group_cfs_rq(se);
} while (cfs_rq);
SCHED_FEAT(LB_WAKEUP_UPDATE, 1)
SCHED_FEAT(ASYM_EFF_LOAD, 1)
SCHED_FEAT(WAKEUP_OVERLAP, 0)
+SCHED_FEAT(LAST_BUDDY, 1)
{
/* Wait for response */
do {
- /*
- * We need to see the flags store in the IPI handler
- */
- smp_mb();
if (!(data->flags & CSD_FLAG_WAIT))
break;
cpu_relax();
list_add_tail(&data->list, &dst->list);
spin_unlock_irqrestore(&dst->lock, flags);
+ /*
+ * Make the list addition visible before sending the ipi.
+ */
+ smp_mb();
+
if (ipi)
arch_send_call_function_single_ipi(cpu);
* Need to see other stores to list head for checking whether
* list is empty without holding q->lock
*/
- smp_mb();
+ smp_read_barrier_depends();
while (!list_empty(&q->list)) {
unsigned int data_flags;
/*
* See comment on outer loop
*/
- smp_mb();
+ smp_read_barrier_depends();
}
}
list_add_tail_rcu(&data->csd.list, &call_function_queue);
spin_unlock_irqrestore(&call_function_lock, flags);
+ /*
+ * Make the list addition visible before sending the ipi.
+ */
+ smp_mb();
+
/* Send a message to all CPUs in the map */
arch_send_call_function_ipi(mask);
tbase_get_deferrable(timer->base));
}
-/**
- * __round_jiffies - function to round jiffies to a full second
- * @j: the time in (absolute) jiffies that should be rounded
- * @cpu: the processor number on which the timeout will happen
- *
- * __round_jiffies() rounds an absolute time in the future (in jiffies)
- * up or down to (approximately) full seconds. This is useful for timers
- * for which the exact time they fire does not matter too much, as long as
- * they fire approximately every X seconds.
- *
- * By rounding these timers to whole seconds, all such timers will fire
- * at the same time, rather than at various times spread out. The goal
- * of this is to have the CPU wake up less, which saves power.
- *
- * The exact rounding is skewed for each processor to avoid all
- * processors firing at the exact same time, which could lead
- * to lock contention or spurious cache line bouncing.
- *
- * The return value is the rounded version of the @j parameter.
- */
-unsigned long __round_jiffies(unsigned long j, int cpu)
+static unsigned long round_jiffies_common(unsigned long j, int cpu,
+ bool force_up)
{
int rem;
unsigned long original = j;
* due to delays of the timer irq, long irq off times etc etc) then
* we should round down to the whole second, not up. Use 1/4th second
* as cutoff for this rounding as an extreme upper bound for this.
+ * But never round down if @force_up is set.
*/
- if (rem < HZ/4) /* round down */
+ if (rem < HZ/4 && !force_up) /* round down */
j = j - rem;
else /* round up */
j = j - rem + HZ;
return original;
return j;
}
+
+/**
+ * __round_jiffies - function to round jiffies to a full second
+ * @j: the time in (absolute) jiffies that should be rounded
+ * @cpu: the processor number on which the timeout will happen
+ *
+ * __round_jiffies() rounds an absolute time in the future (in jiffies)
+ * up or down to (approximately) full seconds. This is useful for timers
+ * for which the exact time they fire does not matter too much, as long as
+ * they fire approximately every X seconds.
+ *
+ * By rounding these timers to whole seconds, all such timers will fire
+ * at the same time, rather than at various times spread out. The goal
+ * of this is to have the CPU wake up less, which saves power.
+ *
+ * The exact rounding is skewed for each processor to avoid all
+ * processors firing at the exact same time, which could lead
+ * to lock contention or spurious cache line bouncing.
+ *
+ * The return value is the rounded version of the @j parameter.
+ */
+unsigned long __round_jiffies(unsigned long j, int cpu)
+{
+ return round_jiffies_common(j, cpu, false);
+}
EXPORT_SYMBOL_GPL(__round_jiffies);
/**
*/
unsigned long __round_jiffies_relative(unsigned long j, int cpu)
{
- /*
- * In theory the following code can skip a jiffy in case jiffies
- * increments right between the addition and the later subtraction.
- * However since the entire point of this function is to use approximate
- * timeouts, it's entirely ok to not handle that.
- */
- return __round_jiffies(j + jiffies, cpu) - jiffies;
+ unsigned long j0 = jiffies;
+
+ /* Use j0 because jiffies might change while we run */
+ return round_jiffies_common(j + j0, cpu, false) - j0;
}
EXPORT_SYMBOL_GPL(__round_jiffies_relative);
*/
unsigned long round_jiffies(unsigned long j)
{
- return __round_jiffies(j, raw_smp_processor_id());
+ return round_jiffies_common(j, raw_smp_processor_id(), false);
}
EXPORT_SYMBOL_GPL(round_jiffies);
}
EXPORT_SYMBOL_GPL(round_jiffies_relative);
+/**
+ * __round_jiffies_up - function to round jiffies up to a full second
+ * @j: the time in (absolute) jiffies that should be rounded
+ * @cpu: the processor number on which the timeout will happen
+ *
+ * This is the same as __round_jiffies() except that it will never
+ * round down. This is useful for timeouts for which the exact time
+ * of firing does not matter too much, as long as they don't fire too
+ * early.
+ */
+unsigned long __round_jiffies_up(unsigned long j, int cpu)
+{
+ return round_jiffies_common(j, cpu, true);
+}
+EXPORT_SYMBOL_GPL(__round_jiffies_up);
+
+/**
+ * __round_jiffies_up_relative - function to round jiffies up to a full second
+ * @j: the time in (relative) jiffies that should be rounded
+ * @cpu: the processor number on which the timeout will happen
+ *
+ * This is the same as __round_jiffies_relative() except that it will never
+ * round down. This is useful for timeouts for which the exact time
+ * of firing does not matter too much, as long as they don't fire too
+ * early.
+ */
+unsigned long __round_jiffies_up_relative(unsigned long j, int cpu)
+{
+ unsigned long j0 = jiffies;
+
+ /* Use j0 because jiffies might change while we run */
+ return round_jiffies_common(j + j0, cpu, true) - j0;
+}
+EXPORT_SYMBOL_GPL(__round_jiffies_up_relative);
+
+/**
+ * round_jiffies_up - function to round jiffies up to a full second
+ * @j: the time in (absolute) jiffies that should be rounded
+ *
+ * This is the same as round_jiffies() except that it will never
+ * round down. This is useful for timeouts for which the exact time
+ * of firing does not matter too much, as long as they don't fire too
+ * early.
+ */
+unsigned long round_jiffies_up(unsigned long j)
+{
+ return round_jiffies_common(j, raw_smp_processor_id(), true);
+}
+EXPORT_SYMBOL_GPL(round_jiffies_up);
+
+/**
+ * round_jiffies_up_relative - function to round jiffies up to a full second
+ * @j: the time in (relative) jiffies that should be rounded
+ *
+ * This is the same as round_jiffies_relative() except that it will never
+ * round down. This is useful for timeouts for which the exact time
+ * of firing does not matter too much, as long as they don't fire too
+ * early.
+ */
+unsigned long round_jiffies_up_relative(unsigned long j)
+{
+ return __round_jiffies_up_relative(j, raw_smp_processor_id());
+}
+EXPORT_SYMBOL_GPL(round_jiffies_up_relative);
+
static inline void set_running_timer(struct tvec_base *base,
struct timer_list *timer)
return ret;
}
+#ifdef CONFIG_SMP
+struct work_for_cpu {
+ struct work_struct work;
+ long (*fn)(void *);
+ void *arg;
+ long ret;
+};
+
+static void do_work_for_cpu(struct work_struct *w)
+{
+ struct work_for_cpu *wfc = container_of(w, struct work_for_cpu, work);
+
+ wfc->ret = wfc->fn(wfc->arg);
+}
+
+/**
+ * work_on_cpu - run a function in user context on a particular cpu
+ * @cpu: the cpu to run on
+ * @fn: the function to run
+ * @arg: the function arg
+ *
+ * This will return -EINVAL in the cpu is not online, or the return value
+ * of @fn otherwise.
+ */
+long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg)
+{
+ struct work_for_cpu wfc;
+
+ INIT_WORK(&wfc.work, do_work_for_cpu);
+ wfc.fn = fn;
+ wfc.arg = arg;
+ get_online_cpus();
+ if (unlikely(!cpu_online(cpu)))
+ wfc.ret = -EINVAL;
+ else {
+ schedule_work_on(cpu, &wfc.work);
+ flush_work(&wfc.work);
+ }
+ put_online_cpus();
+
+ return wfc.ret;
+}
+EXPORT_SYMBOL_GPL(work_on_cpu);
+#endif /* CONFIG_SMP */
+
void __init init_workqueues(void)
{
cpu_populated_map = cpu_online_map;
#include <linux/bitops.h>
#include <linux/cpumask.h>
#include <linux/module.h>
+#include <linux/bootmem.h>
int __first_cpu(const cpumask_t *srcp)
{
return cpu;
}
EXPORT_SYMBOL(__any_online_cpu);
+
+/**
+ * cpumask_next_and - get the next cpu in *src1p & *src2p
+ * @n: the cpu prior to the place to search (ie. return will be > @n)
+ * @src1p: the first cpumask pointer
+ * @src2p: the second cpumask pointer
+ *
+ * Returns >= nr_cpu_ids if no further cpus set in both.
+ */
+int cpumask_next_and(int n, const struct cpumask *src1p,
+ const struct cpumask *src2p)
+{
+ while ((n = cpumask_next(n, src1p)) < nr_cpu_ids)
+ if (cpumask_test_cpu(n, src2p))
+ break;
+ return n;
+}
+EXPORT_SYMBOL(cpumask_next_and);
+
+/**
+ * cpumask_any_but - return a "random" in a cpumask, but not this one.
+ * @mask: the cpumask to search
+ * @cpu: the cpu to ignore.
+ *
+ * Often used to find any cpu but smp_processor_id() in a mask.
+ * Returns >= nr_cpu_ids if no cpus set.
+ */
+int cpumask_any_but(const struct cpumask *mask, unsigned int cpu)
+{
+ unsigned int i;
+
+ cpumask_check(cpu);
+ for_each_cpu(i, mask)
+ if (i != cpu)
+ break;
+ return i;
+}
+
+/* These are not inline because of header tangles. */
+#ifdef CONFIG_CPUMASK_OFFSTACK
+bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
+{
+ if (likely(slab_is_available()))
+ *mask = kmalloc(cpumask_size(), flags);
+ else {
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+ printk(KERN_ERR
+ "=> alloc_cpumask_var: kmalloc not available!\n");
+ dump_stack();
+#endif
+ *mask = NULL;
+ }
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+ if (!*mask) {
+ printk(KERN_ERR "=> alloc_cpumask_var: failed!\n");
+ dump_stack();
+ }
+#endif
+ return *mask != NULL;
+}
+EXPORT_SYMBOL(alloc_cpumask_var);
+
+void __init alloc_bootmem_cpumask_var(cpumask_var_t *mask)
+{
+ *mask = alloc_bootmem(cpumask_size());
+}
+
+void free_cpumask_var(cpumask_var_t mask)
+{
+ kfree(mask);
+}
+EXPORT_SYMBOL(free_cpumask_var);
+
+void __init free_bootmem_cpumask_var(cpumask_var_t mask)
+{
+ free_bootmem((unsigned long)mask, cpumask_size());
+}
+#endif
return 0;
}
+static void clear_gigantic_page(struct page *page,
+ unsigned long addr, unsigned long sz)
+{
+ int i;
+ struct page *p = page;
+
+ might_sleep();
+ for (i = 0; i < sz/PAGE_SIZE; i++, p = mem_map_next(p, page, i)) {
+ cond_resched();
+ clear_user_highpage(p, addr + i * PAGE_SIZE);
+ }
+}
static void clear_huge_page(struct page *page,
unsigned long addr, unsigned long sz)
{
int i;
+ if (unlikely(sz > MAX_ORDER_NR_PAGES))
+ return clear_gigantic_page(page, addr, sz);
+
might_sleep();
for (i = 0; i < sz/PAGE_SIZE; i++) {
cond_resched();
}
}
+static void copy_gigantic_page(struct page *dst, struct page *src,
+ unsigned long addr, struct vm_area_struct *vma)
+{
+ int i;
+ struct hstate *h = hstate_vma(vma);
+ struct page *dst_base = dst;
+ struct page *src_base = src;
+ might_sleep();
+ for (i = 0; i < pages_per_huge_page(h); ) {
+ cond_resched();
+ copy_user_highpage(dst, src, addr + i*PAGE_SIZE, vma);
+
+ i++;
+ dst = mem_map_next(dst, dst_base, i);
+ src = mem_map_next(src, src_base, i);
+ }
+}
static void copy_huge_page(struct page *dst, struct page *src,
unsigned long addr, struct vm_area_struct *vma)
{
int i;
struct hstate *h = hstate_vma(vma);
+ if (unlikely(pages_per_huge_page(h) > MAX_ORDER_NR_PAGES))
+ return copy_gigantic_page(dst, src, addr, vma);
+
might_sleep();
for (i = 0; i < pages_per_huge_page(h); i++) {
cond_resched();
{
int i;
+ VM_BUG_ON(h->order >= MAX_ORDER);
+
h->nr_huge_pages--;
h->nr_huge_pages_node[page_to_nid(page)]--;
for (i = 0; i < pages_per_huge_page(h); i++) {
return 1;
}
+static void prep_compound_huge_page(struct page *page, int order)
+{
+ if (unlikely(order > (MAX_ORDER - 1)))
+ prep_compound_gigantic_page(page, order);
+ else
+ prep_compound_page(page, order);
+}
+
/* Put bootmem huge pages into the standard lists after mem_map is up */
static void __init gather_bootmem_prealloc(void)
{
struct hstate *h = m->hstate;
__ClearPageReserved(page);
WARN_ON(page_count(page) != 1);
- prep_compound_page(page, h->order);
+ prep_compound_huge_page(page, h->order);
prep_new_huge_page(h, page, page_to_nid(page));
}
}
if (zeropage_ok)
pages[i] = ZERO_PAGE(0);
else
- pages[i] = page + pfn_offset;
+ pages[i] = mem_map_offset(page, pfn_offset);
get_page(pages[i]);
}
unsigned long floor, unsigned long ceiling);
extern void prep_compound_page(struct page *page, unsigned long order);
+extern void prep_compound_gigantic_page(struct page *page, unsigned long order);
static inline void set_page_count(struct page *page, int v)
{
#endif /* CONFIG_UNEVICTABLE_LRU */
+/*
+ * Return the mem_map entry representing the 'offset' subpage within
+ * the maximally aligned gigantic page 'base'. Handle any discontiguity
+ * in the mem_map at MAX_ORDER_NR_PAGES boundaries.
+ */
+static inline struct page *mem_map_offset(struct page *base, int offset)
+{
+ if (unlikely(offset >= MAX_ORDER_NR_PAGES))
+ return pfn_to_page(page_to_pfn(base) + offset);
+ return base + offset;
+}
+
+/*
+ * Iterator over all subpages withing the maximally aligned gigantic
+ * page 'base'. Handle any discontiguity in the mem_map.
+ */
+static inline struct page *mem_map_next(struct page *iter,
+ struct page *base, int offset)
+{
+ if (unlikely((offset & (MAX_ORDER_NR_PAGES - 1)) == 0)) {
+ unsigned long pfn = page_to_pfn(base) + offset;
+ if (!pfn_valid(pfn))
+ return NULL;
+ return pfn_to_page(pfn);
+ }
+ return iter + 1;
+}
+
/*
* FLATMEM and DISCONTIGMEM configurations use alloc_bootmem_node,
* so all functions starting at paging_init should be marked __init
int err;
struct vm_area_struct *first, *vma, *prev;
- if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) {
-
- err = migrate_prep();
- if (err)
- return ERR_PTR(err);
- }
first = find_vma(mm, start);
if (!first)
const nodemask_t *from_nodes, const nodemask_t *to_nodes, int flags)
{
int busy = 0;
- int err = 0;
+ int err;
nodemask_t tmp;
+ err = migrate_prep();
+ if (err)
+ return err;
+
down_read(&mm->mmap_sem);
err = migrate_vmas(mm, from_nodes, to_nodes, flags);
start, start + len, mode, mode_flags,
nmask ? nodes_addr(*nmask)[0] : -1);
+ if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) {
+
+ err = migrate_prep();
+ if (err)
+ return err;
+ }
down_write(&mm->mmap_sem);
vma = check_range(mm, start, end, nmask,
flags | MPOL_MF_INVERT, &pagelist);
struct page_to_node *pp;
LIST_HEAD(pagelist);
+ migrate_prep();
down_read(&mm->mmap_sem);
/*
* Build a list of pages to migrate
*/
- migrate_prep();
for (pp = pm; pp->node != MAX_NUMNODES; pp++) {
struct vm_area_struct *vma;
struct page *page;
* badness - calculate a numeric value for how bad this task has been
* @p: task struct of which task we should calculate
* @uptime: current uptime in seconds
- * @mem: target memory controller
*
* The formula used is relatively simple and documented inline in the
* function. The main rationale is that we want to select a good task
continue;
if (mem && !task_in_mem_cgroup(p, mem))
continue;
+ if (!thread_group_leader(p))
+ continue;
task_lock(p);
printk(KERN_INFO "[%5d] %5d %5d %8lu %8lu %3d %3d %s\n",
}
void prep_compound_page(struct page *page, unsigned long order)
+{
+ int i;
+ int nr_pages = 1 << order;
+
+ set_compound_page_dtor(page, free_compound_page);
+ set_compound_order(page, order);
+ __SetPageHead(page);
+ for (i = 1; i < nr_pages; i++) {
+ struct page *p = page + i;
+
+ __SetPageTail(p);
+ p->first_page = page;
+ }
+}
+
+#ifdef CONFIG_HUGETLBFS
+void prep_compound_gigantic_page(struct page *page, unsigned long order)
{
int i;
int nr_pages = 1 << order;
set_compound_page_dtor(page, free_compound_page);
set_compound_order(page, order);
__SetPageHead(page);
- for (i = 1; i < nr_pages; i++, p++) {
- if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0))
- p = pfn_to_page(page_to_pfn(page) + i);
+ for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
__SetPageTail(p);
p->first_page = page;
}
}
+#endif
static void destroy_compound_page(struct page *page, unsigned long order)
{
int i;
int nr_pages = 1 << order;
- struct page *p = page + 1;
if (unlikely(compound_order(page) != order))
bad_page(page);
if (unlikely(!PageHead(page)))
bad_page(page);
__ClearPageHead(page);
- for (i = 1; i < nr_pages; i++, p++) {
- if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0))
- p = pfn_to_page(page_to_pfn(page) + i);
+ for (i = 1; i < nr_pages; i++) {
+ struct page *p = page + i;
if (unlikely(!PageTail(p) |
(p->first_page != page)))
if (page && get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
break;
}
- if (pfn < end_pfn)
+ page = __first_valid_page(start_pfn, end_pfn - start_pfn);
+ if ((pfn < end_pfn) || !page)
return -EBUSY;
/* Check all pages are free or Marked as ISOLATED */
- zone = page_zone(pfn_to_page(pfn));
+ zone = page_zone(page);
spin_lock_irqsave(&zone->lock, flags);
ret = __test_page_isolated_in_pageblock(start_pfn, end_pfn);
spin_unlock_irqrestore(&zone->lock, flags);
unsigned long pfn = pte_pfn(*pte);
int actual_node = early_pfn_to_nid(pfn);
- if (actual_node != node)
+ if (node_distance(actual_node, node) > LOCAL_DISTANCE)
printk(KERN_WARNING "[%lx-%lx] potential offnode "
"page_structs\n", start, end - 1);
}
static inline int is_vmalloc_or_module_addr(const void *x)
{
/*
- * x86-64 and sparc64 put modules in a special place,
+ * ARM, x86-64 and sparc64 put modules in a special place,
* and fall back on vmalloc() if that fails. Others
* just put it in the vmalloc space.
*/
#define VMAP_BLOCK_SIZE (VMAP_BBMAP_BITS * PAGE_SIZE)
+static bool vmap_initialized __read_mostly = false;
+
struct vmap_block_queue {
spinlock_t lock;
struct list_head free;
int cpu;
int flush = 0;
+ if (unlikely(!vmap_initialized))
+ return;
+
for_each_possible_cpu(cpu) {
struct vmap_block_queue *vbq = &per_cpu(vmap_block_queue, cpu);
struct vmap_block *vb;
INIT_LIST_HEAD(&vbq->dirty);
vbq->nr_dirty = 0;
}
+
+ vmap_initialized = true;
}
void unmap_kernel_range(unsigned long addr, unsigned long size)
#include <linux/if_vlan.h>
#include "vlan.h"
+struct vlan_hwaccel_cb {
+ struct net_device *dev;
+};
+
+static inline struct vlan_hwaccel_cb *vlan_hwaccel_cb(struct sk_buff *skb)
+{
+ return (struct vlan_hwaccel_cb *)skb->cb;
+}
+
/* VLAN rx hw acceleration helper. This acts like netif_{rx,receive_skb}(). */
int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
u16 vlan_tci, int polling)
{
- struct net_device_stats *stats;
+ struct vlan_hwaccel_cb *cb = vlan_hwaccel_cb(skb);
if (skb_bond_should_drop(skb)) {
dev_kfree_skb_any(skb);
}
skb->vlan_tci = vlan_tci;
+ cb->dev = vlan_group_get_device(grp, vlan_tci & VLAN_VID_MASK);
+
+ return (polling ? netif_receive_skb(skb) : netif_rx(skb));
+}
+EXPORT_SYMBOL(__vlan_hwaccel_rx);
+
+int vlan_hwaccel_do_receive(struct sk_buff *skb)
+{
+ struct vlan_hwaccel_cb *cb = vlan_hwaccel_cb(skb);
+ struct net_device *dev = cb->dev;
+ struct net_device_stats *stats;
+
netif_nit_deliver(skb);
- skb->dev = vlan_group_get_device(grp, vlan_tci & VLAN_VID_MASK);
- if (skb->dev == NULL) {
- dev_kfree_skb_any(skb);
- /* Not NET_RX_DROP, this is not being dropped
- * due to congestion. */
- return NET_RX_SUCCESS;
+ if (dev == NULL) {
+ kfree_skb(skb);
+ return -1;
}
- skb->dev->last_rx = jiffies;
+
+ skb->dev = dev;
+ skb->priority = vlan_get_ingress_priority(dev, skb->vlan_tci);
skb->vlan_tci = 0;
- stats = &skb->dev->stats;
+ dev->last_rx = jiffies;
+
+ stats = &dev->stats;
stats->rx_packets++;
stats->rx_bytes += skb->len;
- skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci);
switch (skb->pkt_type) {
case PACKET_BROADCAST:
break;
* This allows the VLAN to have a different MAC than the
* underlying device, and still route correctly. */
if (!compare_ether_addr(eth_hdr(skb)->h_dest,
- skb->dev->dev_addr))
+ dev->dev_addr))
skb->pkt_type = PACKET_HOST;
break;
};
- return (polling ? netif_receive_skb(skb) : netif_rx(skb));
+ return 0;
}
-EXPORT_SYMBOL(__vlan_hwaccel_rx);
struct net_device *vlan_dev_real_dev(const struct net_device *dev)
{
printk(KERN_ERR "Couldn't grow tag array\n");
kfree(req->tc);
kfree(req->rc);
+ kfree(req->wq);
+ req->tc = req->rc = NULL;
+ req->wq = NULL;
return ERR_PTR(-ENOMEM);
}
req->tc->sdata = (char *) req->tc + sizeof(struct p9_fcall);
r->status = REQ_STATUS_IDLE;
if (tag != P9_NOTAG && p9_idpool_check(tag, c->tagpool))
p9_idpool_put(tag, c->tagpool);
-
- /* if this was a flush request we have to free response fcall */
- if (r->rc->id == P9_RFLUSH) {
- kfree(r->tc);
- kfree(r->rc);
- }
}
/**
static struct p9_fid *p9_fid_create(struct p9_client *clnt)
{
- int err;
+ int ret;
struct p9_fid *fid;
+ unsigned long flags;
P9_DPRINTK(P9_DEBUG_FID, "clnt %p\n", clnt);
fid = kmalloc(sizeof(struct p9_fid), GFP_KERNEL);
if (!fid)
return ERR_PTR(-ENOMEM);
- fid->fid = p9_idpool_get(clnt->fidpool);
+ ret = p9_idpool_get(clnt->fidpool);
if (fid->fid < 0) {
- err = -ENOSPC;
+ ret = -ENOSPC;
goto error;
}
+ fid->fid = ret;
memset(&fid->qid, 0, sizeof(struct p9_qid));
fid->mode = -1;
fid->clnt = clnt;
fid->aux = NULL;
- spin_lock(&clnt->lock);
+ spin_lock_irqsave(&clnt->lock, flags);
list_add(&fid->flist, &clnt->fidlist);
- spin_unlock(&clnt->lock);
+ spin_unlock_irqrestore(&clnt->lock, flags);
return fid;
error:
kfree(fid);
- return ERR_PTR(err);
+ return ERR_PTR(ret);
}
static void p9_fid_destroy(struct p9_fid *fid)
{
struct p9_client *clnt;
+ unsigned long flags;
P9_DPRINTK(P9_DEBUG_FID, "fid %d\n", fid->fid);
clnt = fid->clnt;
p9_idpool_put(fid->fid, clnt->fidpool);
- spin_lock(&clnt->lock);
+ spin_lock_irqsave(&clnt->lock, flags);
list_del(&fid->flist);
- spin_unlock(&clnt->lock);
+ spin_unlock_irqrestore(&clnt->lock, flags);
kfree(fid);
}
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RATTACH qid %x.%llx.%x\n",
- qid.type, qid.path, qid.version);
+ qid.type,
+ (unsigned long long)qid.path,
+ qid.version);
memmove(&fid->qid, &qid, sizeof(struct p9_qid));
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RAUTH qid %x.%llx.%x\n",
- qid.type, qid.path, qid.version);
+ qid.type,
+ (unsigned long long)qid.path,
+ qid.version);
memmove(&afid->qid, &qid, sizeof(struct p9_qid));
p9_free_req(clnt, req);
for (count = 0; count < nwqids; count++)
P9_DPRINTK(P9_DEBUG_9P, "<<< [%d] %x.%llx.%x\n",
- count, wqids[count].type, wqids[count].path,
+ count, wqids[count].type,
+ (unsigned long long)wqids[count].path,
wqids[count].version);
if (nwname)
}
P9_DPRINTK(P9_DEBUG_9P, "<<< ROPEN qid %x.%llx.%x iounit %x\n",
- qid.type, qid.path, qid.version, iounit);
+ qid.type,
+ (unsigned long long)qid.path,
+ qid.version, iounit);
fid->mode = mode;
fid->iounit = iounit;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RCREATE qid %x.%llx.%x iounit %x\n",
- qid.type, qid.path, qid.version, iounit);
+ qid.type,
+ (unsigned long long)qid.path,
+ qid.version, iounit);
fid->mode = mode;
fid->iounit = iounit;
"<<< name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
"<<< uid=%d gid=%d n_muid=%d\n",
ret->size, ret->type, ret->dev, ret->qid.type,
- ret->qid.path, ret->qid.version, ret->mode,
- ret->atime, ret->mtime, ret->length, ret->name,
- ret->uid, ret->gid, ret->muid, ret->extension,
+ (unsigned long long)ret->qid.path, ret->qid.version, ret->mode,
+ ret->atime, ret->mtime, (unsigned long long)ret->length,
+ ret->name, ret->uid, ret->gid, ret->muid, ret->extension,
ret->n_uid, ret->n_gid, ret->n_muid);
free_and_error:
" name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
" uid=%d gid=%d n_muid=%d\n",
wst->size, wst->type, wst->dev, wst->qid.type,
- wst->qid.path, wst->qid.version, wst->mode,
- wst->atime, wst->mtime, wst->length, wst->name,
- wst->uid, wst->gid, wst->muid, wst->extension,
+ (unsigned long long)wst->qid.path, wst->qid.version, wst->mode,
+ wst->atime, wst->mtime, (unsigned long long)wst->length,
+ wst->name, wst->uid, wst->gid, wst->muid, wst->extension,
wst->n_uid, wst->n_gid, wst->n_muid);
err = 0;
clnt = fid->clnt;
#include <net/9p/transport.h>
#include <rdma/ib_verbs.h>
#include <rdma/rdma_cm.h>
-#include <rdma/ib_verbs.h>
#define P9_PORT 5640
#define P9_RDMA_SQ_DEPTH 32
if (IS_ERR(rdma->cm_id))
goto error;
+ /* Associate the client with the transport */
+ client->trans = rdma;
+
/* Resolve the server's address */
rdma->addr.sin_family = AF_INET;
rdma->addr.sin_addr.s_addr = in_aton(addr);
if (err || (rdma->state != P9_RDMA_CONNECTED))
goto error;
- client->trans = rdma;
client->status = Connected;
return 0;
int ret = NET_RX_DROP;
__be16 type;
+ if (skb->vlan_tci && vlan_hwaccel_do_receive(skb))
+ return NET_RX_SUCCESS;
+
/* if we've gotten here through NAPI, check netpoll */
if (netpoll_receive_skb(skb))
return NET_RX_DROP;
if (!fpl)
return -ENOMEM;
*fplp = fpl;
+ INIT_LIST_HEAD(&fpl->list);
fpl->count = 0;
}
fpp = &fpl->fp[fpl->count];
if (fpl) {
scm->fp = NULL;
- for (i=fpl->count-1; i>=0; i--)
- fput(fpl->fp[i]);
- kfree(fpl);
+ if (current->scm_work_list) {
+ list_add_tail(&fpl->list, current->scm_work_list);
+ } else {
+ LIST_HEAD(work_list);
+
+ current->scm_work_list = &work_list;
+
+ list_add(&fpl->list, &work_list);
+ while (!list_empty(&work_list)) {
+ fpl = list_first_entry(&work_list, struct scm_fp_list, list);
+
+ list_del(&fpl->list);
+ for (i=fpl->count-1; i>=0; i--)
+ fput(fpl->fp[i]);
+ kfree(fpl);
+ }
+
+ current->scm_work_list = NULL;
+ }
}
}
new_fpl = kmalloc(sizeof(*fpl), GFP_KERNEL);
if (new_fpl) {
+ INIT_LIST_HEAD(&new_fpl->list);
for (i=fpl->count-1; i>=0; i--)
get_file(fpl->fp[i]);
memcpy(new_fpl, fpl, sizeof(*fpl));
sk->sk_state == TCP_CLOSE ||
(sk->sk_shutdown & RCV_SHUTDOWN) ||
!timeo ||
- signal_pending(current) ||
- (flags & MSG_PEEK))
+ signal_pending(current))
break;
} else {
if (sock_flag(sk, SOCK_DONE))
x->sel.dport_mask = htons(0xffff);
x->sel.sport = xfrm_flowi_sport(fl);
x->sel.sport_mask = htons(0xffff);
+ x->sel.family = AF_INET;
x->sel.prefixlen_d = 32;
x->sel.prefixlen_s = 32;
x->sel.proto = fl->proto;
if (!idev && dev->mtu >= IPV6_MIN_MTU)
idev = ipv6_add_dev(dev);
- if (idev)
+ if (idev) {
idev->if_flags |= IF_READY;
+ run_pending = 1;
+ }
} else {
if (!addrconf_qdisc_ok(dev)) {
/* device is still not ready. */
int peeked;
int err;
int is_udplite = IS_UDPLITE(sk);
+ int is_udp4;
if (addr_len)
*addr_len=sizeof(struct sockaddr_in6);
else if (copied < ulen)
msg->msg_flags |= MSG_TRUNC;
+ is_udp4 = (skb->protocol == htons(ETH_P_IP));
+
/*
* If checksum is needed at all, try to do it while copying the
* data. If the data is truncated, or if we only want a partial
if (err)
goto out_free;
- if (!peeked)
- UDP6_INC_STATS_USER(sock_net(sk),
- UDP_MIB_INDATAGRAMS, is_udplite);
+ if (!peeked) {
+ if (is_udp4)
+ UDP_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_INDATAGRAMS, is_udplite);
+ else
+ UDP6_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_INDATAGRAMS, is_udplite);
+ }
sock_recv_timestamp(msg, sk, skb);
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
- if (skb->protocol == htons(ETH_P_IP))
+ if (is_udp4)
ipv6_addr_set(&sin6->sin6_addr, 0, 0,
htonl(0xffff), ip_hdr(skb)->saddr);
else {
}
}
- if (skb->protocol == htons(ETH_P_IP)) {
+ if (is_udp4) {
if (inet->cmsg_flags)
ip_cmsg_recv(msg, skb);
} else {
csum_copy_err:
lock_sock(sk);
- if (!skb_kill_datagram(sk, skb, flags))
- UDP6_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
+ if (!skb_kill_datagram(sk, skb, flags)) {
+ if (is_udp4)
+ UDP_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_INERRORS, is_udplite);
+ else
+ UDP6_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_INERRORS, is_udplite);
+ }
release_sock(sk);
if (flags & MSG_DONTWAIT)
x->sel.dport_mask = htons(0xffff);
x->sel.sport = xfrm_flowi_sport(fl);
x->sel.sport_mask = htons(0xffff);
+ x->sel.family = AF_INET6;
x->sel.prefixlen_d = 128;
x->sel.prefixlen_s = 128;
x->sel.proto = fl->proto;
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/rculist.h>
+#include <linux/rtnetlink.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_l3proto.h>
*/
synchronize_rcu();
+ rtnl_lock();
spin_lock_bh(&nf_conntrack_lock);
for_each_net(net)
__nf_conntrack_helper_unregister(me, net);
spin_unlock_bh(&nf_conntrack_lock);
+ rtnl_unlock();
}
EXPORT_SYMBOL_GPL(nf_conntrack_helper_unregister);
#include <linux/notifier.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_l3proto.h>
synchronize_rcu();
/* Remove all contrack entries for this protocol */
+ rtnl_lock();
for_each_net(net)
nf_ct_iterate_cleanup(net, kill_l3proto, proto);
+ rtnl_unlock();
}
EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister);
synchronize_rcu();
/* Remove all contrack entries for this protocol */
+ rtnl_lock();
for_each_net(net)
nf_ct_iterate_cleanup(net, kill_l4proto, l4proto);
+ rtnl_unlock();
}
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister);
}
/* 0: first switch of its kind */
- return test_bit(rfkill->type, seen);
+ return (test_bit(rfkill->type, seen)) ? 1 : 0;
}
static int rfkill_add_switch(struct rfkill *rfkill)
sock_wfree(skb);
}
-static void unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
+static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
{
int i;
+
+ /*
+ * Need to duplicate file references for the sake of garbage
+ * collection. Otherwise a socket in the fps might become a
+ * candidate for GC while the skb is not yet queued.
+ */
+ UNIXCB(skb).fp = scm_fp_dup(scm->fp);
+ if (!UNIXCB(skb).fp)
+ return -ENOMEM;
+
for (i=scm->fp->count-1; i>=0; i--)
unix_inflight(scm->fp->fp[i]);
- UNIXCB(skb).fp = scm->fp;
skb->destructor = unix_destruct_fds;
- scm->fp = NULL;
+ return 0;
}
/*
goto out;
memcpy(UNIXCREDS(skb), &siocb->scm->creds, sizeof(struct ucred));
- if (siocb->scm->fp)
- unix_attach_fds(siocb->scm, skb);
+ if (siocb->scm->fp) {
+ err = unix_attach_fds(siocb->scm, skb);
+ if (err)
+ goto out_free;
+ }
unix_get_secdata(siocb->scm, skb);
skb_reset_transport_header(skb);
size = min_t(int, size, skb_tailroom(skb));
memcpy(UNIXCREDS(skb), &siocb->scm->creds, sizeof(struct ucred));
- if (siocb->scm->fp)
- unix_attach_fds(siocb->scm, skb);
+ if (siocb->scm->fp) {
+ err = unix_attach_fds(siocb->scm, skb);
+ if (err) {
+ kfree_skb(skb);
+ goto out_err;
+ }
+ }
if ((err = memcpy_fromiovec(skb_put(skb,size), msg->msg_iov, size)) != 0) {
kfree_skb(skb);
*/
struct sock *sk = unix_get_socket(*fp++);
if (sk) {
- hit = true;
- func(unix_sk(sk));
+ struct unix_sock *u = unix_sk(sk);
+
+ /*
+ * Ignore non-candidates, they could
+ * have been added to the queues after
+ * starting the garbage collection
+ */
+ if (u->gc_candidate) {
+ hit = true;
+ func(u);
+ }
}
}
if (hit && hitlist != NULL) {
{
atomic_long_inc(&u->inflight);
/*
- * If this is still a candidate, move it to the end of the
- * list, so that it's checked even if it was already passed
- * over
+ * If this still might be part of a cycle, move it to the end
+ * of the list, so that it's checked even if it was already
+ * passed over
*/
- if (u->gc_candidate)
+ if (u->gc_maybe_cycle)
list_move_tail(&u->link, &gc_candidates);
}
struct unix_sock *next;
struct sk_buff_head hitlist;
struct list_head cursor;
+ LIST_HEAD(not_cycle_list);
spin_lock(&unix_gc_lock);
*
* Holding unix_gc_lock will protect these candidates from
* being detached, and hence from gaining an external
- * reference. This also means, that since there are no
- * possible receivers, the receive queues of these sockets are
- * static during the GC, even though the dequeue is done
- * before the detach without atomicity guarantees.
+ * reference. Since there are no possible receivers, all
+ * buffers currently on the candidates' queues stay there
+ * during the garbage collection.
+ *
+ * We also know that no new candidate can be added onto the
+ * receive queues. Other, non candidate sockets _can_ be
+ * added to queue, so we must make sure only to touch
+ * candidates.
*/
list_for_each_entry_safe(u, next, &gc_inflight_list, link) {
long total_refs;
if (total_refs == inflight_refs) {
list_move_tail(&u->link, &gc_candidates);
u->gc_candidate = 1;
+ u->gc_maybe_cycle = 1;
}
}
list_move(&cursor, &u->link);
if (atomic_long_read(&u->inflight) > 0) {
- list_move_tail(&u->link, &gc_inflight_list);
- u->gc_candidate = 0;
+ list_move_tail(&u->link, ¬_cycle_list);
+ u->gc_maybe_cycle = 0;
scan_children(&u->sk, inc_inflight_move_tail, NULL);
}
}
list_del(&cursor);
+ /*
+ * not_cycle_list contains those sockets which do not make up a
+ * cycle. Restore these to the inflight list.
+ */
+ while (!list_empty(¬_cycle_list)) {
+ u = list_entry(not_cycle_list.next, struct unix_sock, link);
+ u->gc_candidate = 0;
+ list_move_tail(&u->link, &gc_inflight_list);
+ }
+
/*
* Now gc_candidates contains only garbage. Restore original
* inflight counters for these as well, and remove the skbuffs
return;
}
- spin_lock(&xfrm_policy_gc_lock);
+ spin_lock_bh(&xfrm_policy_gc_lock);
hlist_add_head(&policy->bydst, &xfrm_policy_gc_list);
- spin_unlock(&xfrm_policy_gc_lock);
+ spin_unlock_bh(&xfrm_policy_gc_lock);
schedule_work(&xfrm_policy_gc_work);
}
uk.family = k->family;
uk.reserved = k->reserved;
memcpy(&uk.local, &k->local, sizeof(uk.local));
- memcpy(&uk.remote, &k->local, sizeof(uk.remote));
+ memcpy(&uk.remote, &k->remote, sizeof(uk.remote));
return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk);
}
version=$KERNELRELEASE
revision=`cat .version`
tmpdir="$objtree/debian/tmp"
+fwdir="$objtree/debian/fwtmp"
packagename=linux-$version
+fwpackagename=linux-firmware-image
if [ "$ARCH" == "um" ] ; then
packagename=user-mode-linux-$version
fi
# Setup the directory structure
-rm -rf "$tmpdir"
+rm -rf "$tmpdir" "$fwdir"
mkdir -p "$tmpdir/DEBIAN" "$tmpdir/lib" "$tmpdir/boot"
+mkdir -p "$fwdir/DEBIAN" "$fwdir/lib"
if [ "$ARCH" == "um" ] ; then
mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/share/doc/$packagename" "$tmpdir/usr/bin"
fi
Package: $packagename
Provides: kernel-image-$version, linux-image-$version
+Suggests: $fwpackagename
Architecture: any
Description: Linux kernel, version $version
This package contains the Linux kernel, modules and corresponding other
chown -R root:root "$tmpdir"
chmod -R go-w "$tmpdir"
+# Do we have firmware? Move it out of the way and build it into a package.
+if [ -e "$tmpdir/lib/firmware" ]; then
+ mv "$tmpdir/lib/firmware" "$fwdir/lib/"
+
+ cat <<EOF >> debian/control
+
+Package: $fwpackagename
+Architecture: all
+Description: Linux kernel firmware, version $version
+ This package contains firmware from the Linux kernel, version $version
+EOF
+
+ dpkg-gencontrol -isp -p$fwpackagename -P"$fwdir"
+ dpkg --build "$fwdir" ..
+fi
+
# Perform the final magic
-dpkg-gencontrol -isp
+dpkg-gencontrol -isp -p$packagename
dpkg --build "$tmpdir" ..
exit 0
config SND_GUSEXTREME
tristate "Gravis UltraSound Extreme"
- select SND_HWDEP
+ select SND_OPL3_LIB
select SND_MPU401_UART
select SND_PCM
help
(gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
(gpio & AC_GPIO_WAKE) ? 1 : 0);
max = gpio & AC_GPIO_IO_COUNT;
+ if (!max || max > 8)
+ return;
enable = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_GPIO_MASK, 0);
direction = snd_hda_codec_read(codec, nid, 0,
static struct snd_pci_quirk ad1884a_cfg_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x3030, "HP", AD1884A_MOBILE),
SND_PCI_QUIRK(0x103c, 0x3056, "HP", AD1884A_MOBILE),
+ SND_PCI_QUIRK(0x103c, 0x30e7, "HP EliteBook 8530p", AD1884A_LAPTOP),
+ SND_PCI_QUIRK(0x103c, 0x3614, "HP 6730s", AD1884A_LAPTOP),
SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X300", AD1884A_THINKPAD),
{}
};
SND_PCI_QUIRK(0x17aa, 0x3bfd, "Lenovo NB0763", ALC883_LENOVO_NB0763),
SND_PCI_QUIRK(0x17aa, 0x101d, "Lenovo Sky", ALC888_LENOVO_SKY),
SND_PCI_QUIRK(0x17c0, 0x4071, "MEDION MD2", ALC883_MEDION_MD2),
+ SND_PCI_QUIRK(0x17c0, 0x4085, "MEDION MD96630", ALC888_LENOVO_MS7195_DIG),
SND_PCI_QUIRK(0x17f2, 0x5000, "Albatron KI690-AM2", ALC883_6ST_DIG),
SND_PCI_QUIRK(0x1991, 0x5625, "Haier W66", ALC883_HAIER_W66),
SND_PCI_QUIRK(0x8086, 0x0001, "DG33BUC", ALC883_3ST_6ch_INTEL),
{
struct hdsp *hdsp = (struct hdsp *)hw->private_data;
void __user *argp = (void __user *)arg;
+ int err;
switch (cmd) {
case SNDRV_HDSP_IOCTL_GET_PEAK_RMS: {
struct hdsp_peak_rms __user *peak_rms = (struct hdsp_peak_rms __user *)arg;
+ err = hdsp_check_for_iobox(hdsp);
+ if (err < 0)
+ return err;
+
+ err = hdsp_check_for_firmware(hdsp, 1);
+ if (err < 0)
+ return err;
+
if (!(hdsp->state & HDSP_FirmwareLoaded)) {
snd_printk(KERN_ERR "Hammerfall-DSP: firmware needs to be uploaded to the card.\n");
return -EINVAL;
unsigned long flags;
int i;
- if (!(hdsp->state & HDSP_FirmwareLoaded)) {
- snd_printk(KERN_ERR "Hammerfall-DSP: Firmware needs to be uploaded to the card.\n");
- return -EINVAL;
- }
+ err = hdsp_check_for_iobox(hdsp);
+ if (err < 0)
+ return err;
+
+ err = hdsp_check_for_firmware(hdsp, 1);
+ if (err < 0)
+ return err;
+
spin_lock_irqsave(&hdsp->lock, flags);
info.pref_sync_ref = (unsigned char)hdsp_pref_sync_ref(hdsp);
info.wordclock_sync_check = (unsigned char)hdsp_wc_sync_check(hdsp);
/* we wait 2 seconds to let freshly inserted cardbus cards do their hardware init */
ssleep(2);
+ err = hdsp_check_for_iobox(hdsp);
+ if (err < 0)
+ return err;
+
if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
#ifdef HDSP_FW_LOADER
if ((err = hdsp_request_fw_loader(hdsp)) < 0)
/* init is complete, we return */
return 0;
#endif
- /* no iobox connected, we defer initialization */
+ /* we defer initialization */
snd_printk(KERN_INFO "Hammerfall-DSP: card initialization pending : waiting for firmware\n");
if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
return err;
projects / platform / kernel / linux-rpi.git / commitdiff