Merge tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull asm-generic fixes from Arnd Bergmann:
 "There is one build fix for Arm platforms that ended up impacting most
  architectures because of the way the drivers/firmware Kconfig file is
  wired up:

  The CONFIG_QCOM_SCM dependency have caused a number of randconfig
  regressions over time, and some still remain in v5.15-rc4. The fix we
  agreed on in the end is to make this symbol selected by any driver
  using it, and then building it even for non-Arm platforms with
  CONFIG_COMPILE_TEST.

  To make this work on all architectures, the drivers/firmware/Kconfig
  file needs to be included for all architectures to make the symbol
  itself visible.

  In a separate discussion, we found that a sound driver patch that is
  pending for v5.16 needs the same change to include this Kconfig file,
  so the easiest solution seems to have my Kconfig rework included in
  v5.15.

  Finally, the branch also includes a small unrelated build fix for
  NOMMU architectures"

Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/
Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/
Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/
* tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  asm-generic/io.h: give stub iounmap() on !MMU same prototype as elsewhere
  qcom_scm: hide Kconfig symbol
  firmware: include drivers/firmware/Kconfig unconditionally

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fc19642..59baf6c 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1989,8 +1989,6 @@ config ARCH_HIBERNATION_POSSIBLE
 
 endmenu
 
-source "drivers/firmware/Kconfig"
-
 if CRYPTO
 source "arch/arm/crypto/Kconfig"
 endif

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5c7ae4c..fee914c 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1931,8 +1931,6 @@ source "drivers/cpufreq/Kconfig"
 
 endmenu
 
-source "drivers/firmware/Kconfig"
-
 source "drivers/acpi/Kconfig"
 
 source "arch/arm64/kvm/Kconfig"

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 045792c..1e33666 100644 (file)
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -388,8 +388,6 @@ config CRASH_DUMP
          help
            Generate crash dump after being started by kexec.
 
-source "drivers/firmware/Kconfig"
-
 endmenu
 
 menu "Power management and ACPI options"

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 771ca53..6b8f591 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -3316,8 +3316,6 @@ source "drivers/cpuidle/Kconfig"
 
 endmenu
 
-source "drivers/firmware/Kconfig"
-
 source "arch/mips/kvm/Kconfig"
 
 source "arch/mips/vdso/Kconfig"

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 4742b6f..27a8b49 100644 (file)
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -384,6 +384,4 @@ config KEXEC_FILE
 
 endmenu
 
-source "drivers/firmware/Kconfig"
-
 source "drivers/parisc/Kconfig"

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 301a542..6a6fa9e 100644 (file)
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -561,5 +561,3 @@ menu "Power management options"
 source "kernel/power/Kconfig"
 
 endmenu
-
-source "drivers/firmware/Kconfig"

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ab83c22..0c84895 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2832,8 +2832,6 @@ config HAVE_ATOMIC_IOMAP
        def_bool y
        depends on X86_32
 
-source "drivers/firmware/Kconfig"
-
 source "arch/x86/kvm/Kconfig"
 
 source "arch/x86/Kconfig.assembler"

diff --git a/drivers/Kconfig b/drivers/Kconfig
index 30d2db3..0d399dd 100644 (file)
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -17,6 +17,8 @@ source "drivers/bus/Kconfig"
 
 source "drivers/connector/Kconfig"
 
+source "drivers/firmware/Kconfig"
+
 source "drivers/gnss/Kconfig"
 
 source "drivers/mtd/Kconfig"

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 0bebd5a..cda7d71 100644 (file)
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -203,10 +203,7 @@ config INTEL_STRATIX10_RSU
          Say Y here if you want Intel RSU support.
 
 config QCOM_SCM
-       tristate "Qcom SCM driver"
-       depends on ARCH_QCOM || COMPILE_TEST
-       depends on HAVE_ARM_SMCCC
-       select RESET_CONTROLLER
+       tristate
 
 config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
        bool "Qualcomm download mode enabled by default"

diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index e9c6af7..3ddf739 100644 (file)
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -17,7 +17,7 @@ config DRM_MSM
        select DRM_SCHED
        select SHMEM
        select TMPFS
-       select QCOM_SCM if ARCH_QCOM
+       select QCOM_SCM
        select WANT_DEV_COREDUMP
        select SND_SOC_HDMI_CODEC if SND_SOC
        select SYNC_FILE
@@ -55,7 +55,7 @@ config DRM_MSM_GPU_SUDO
 
 config DRM_MSM_HDMI_HDCP
        bool "Enable HDMI HDCP support in MSM DRM driver"
-       depends on DRM_MSM && QCOM_SCM
+       depends on DRM_MSM
        default y
        help
          Choose this option to enable HDCP state machine

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 124c41a..c5c71b7 100644 (file)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -308,7 +308,6 @@ config APPLE_DART
 config ARM_SMMU
        tristate "ARM Ltd. System MMU (SMMU) Support"
        depends on ARM64 || ARM || (COMPILE_TEST && !GENERIC_ATOMIC64)
-       depends on QCOM_SCM || !QCOM_SCM #if QCOM_SCM=m this can't be =y
        select IOMMU_API
        select IOMMU_IO_PGTABLE_LPAE
        select ARM_DMA_USE_IOMMU if ARM
@@ -438,7 +437,7 @@ config QCOM_IOMMU
        # Note: iommu drivers cannot (yet?) be built as modules
        bool "Qualcomm IOMMU Support"
        depends on ARCH_QCOM || (COMPILE_TEST && !GENERIC_ATOMIC64)
-       depends on QCOM_SCM=y
+       select QCOM_SCM
        select IOMMU_API
        select IOMMU_IO_PGTABLE_LPAE
        select ARM_DMA_USE_IOMMU

diff --git a/drivers/iommu/arm/arm-smmu/Makefile b/drivers/iommu/arm/arm-smmu/Makefile
index e240a7b..b0cc01a 100644 (file)
--- a/drivers/iommu/arm/arm-smmu/Makefile
+++ b/drivers/iommu/arm/arm-smmu/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_QCOM_IOMMU) += qcom_iommu.o
 obj-$(CONFIG_ARM_SMMU) += arm_smmu.o
-arm_smmu-objs += arm-smmu.o arm-smmu-impl.o arm-smmu-nvidia.o arm-smmu-qcom.o
+arm_smmu-objs += arm-smmu.o arm-smmu-impl.o arm-smmu-nvidia.o
+arm_smmu-$(CONFIG_ARM_SMMU_QCOM) += arm-smmu-qcom.o

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
index 9f465e1..2c25cce 100644 (file)
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
@@ -215,7 +215,8 @@ struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu)
            of_device_is_compatible(np, "nvidia,tegra186-smmu"))
                return nvidia_smmu_impl_init(smmu);
 
-       smmu = qcom_smmu_impl_init(smmu);
+       if (IS_ENABLED(CONFIG_ARM_SMMU_QCOM))
+               smmu = qcom_smmu_impl_init(smmu);
 
        if (of_device_is_compatible(np, "marvell,ap806-smmu-500"))
                smmu->impl = &mrvl_mmu500_impl;

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 157c924..80321e0 100644 (file)
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -565,7 +565,7 @@ config VIDEO_QCOM_VENUS
        depends on VIDEO_DEV && VIDEO_V4L2 && QCOM_SMEM
        depends on (ARCH_QCOM && IOMMU_DMA) || COMPILE_TEST
        select QCOM_MDT_LOADER if ARCH_QCOM
-       select QCOM_SCM if ARCH_QCOM
+       select QCOM_SCM
        select VIDEOBUF2_DMA_CONTIG
        select V4L2_MEM2MEM_DEV
        help

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 7131396..95b3511 100644 (file)
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -547,7 +547,7 @@ config MMC_SDHCI_MSM
        depends on MMC_SDHCI_PLTFM
        select MMC_SDHCI_IO_ACCESSORS
        select MMC_CQHCI
-       select QCOM_SCM if MMC_CRYPTO && ARCH_QCOM
+       select QCOM_SCM if MMC_CRYPTO
        help
          This selects the Secure Digital Host Controller Interface (SDHCI)
          support present in Qualcomm SOCs. The controller supports

diff --git a/drivers/net/ipa/Kconfig b/drivers/net/ipa/Kconfig
index 8f99cfa..d037682 100644 (file)
--- a/drivers/net/ipa/Kconfig
+++ b/drivers/net/ipa/Kconfig
@@ -4,6 +4,7 @@ config QCOM_IPA
        depends on ARCH_QCOM || COMPILE_TEST
        depends on QCOM_RPROC_COMMON || (QCOM_RPROC_COMMON=n && COMPILE_TEST)
        select QCOM_MDT_LOADER if ARCH_QCOM
+       select QCOM_SCM
        select QCOM_QMI_HELPERS
        help
          Choose Y or M here to include support for the Qualcomm

diff --git a/drivers/net/wireless/ath/ath10k/Kconfig b/drivers/net/wireless/ath/ath10k/Kconfig
index 741289e..ca007b8 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/Kconfig
+++ b/drivers/net/wireless/ath/ath10k/Kconfig
@@ -44,7 +44,7 @@ config ATH10K_SNOC
        tristate "Qualcomm ath10k SNOC support"
        depends on ATH10K
        depends on ARCH_QCOM || COMPILE_TEST
-       depends on QCOM_SCM || !QCOM_SCM #if QCOM_SCM=m this can't be =y
+       select QCOM_SCM
        select QCOM_QMI_HELPERS
        help
          This module adds support for integrated WCN3990 chip connected

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index 32ea2a8..5ff4207 100644 (file)
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -3,7 +3,8 @@ if (ARCH_QCOM || COMPILE_TEST)
 
 config PINCTRL_MSM
        tristate "Qualcomm core pin controller driver"
-       depends on GPIOLIB && (QCOM_SCM || !QCOM_SCM) #if QCOM_SCM=m this can't be =y
+       depends on GPIOLIB
+       select QCOM_SCM
        select PINMUX
        select PINCONF
        select GENERIC_PINCONF

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index cc7338f..7ce93aa 100644 (file)
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -957,7 +957,7 @@ static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
 
 #ifndef iounmap
 #define iounmap iounmap
-static inline void iounmap(void __iomem *addr)
+static inline void iounmap(volatile void __iomem *addr)
 {
 }
 #endif

diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 7d1cabe..63ccb52 100644 (file)
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -321,10 +321,20 @@ asmlinkage unsigned long __arm_smccc_sve_check(unsigned long x0);
  * from register 0 to 3 on return from the SMC instruction.  An optional
  * quirk structure provides vendor specific behavior.
  */
+#ifdef CONFIG_HAVE_ARM_SMCCC
 asmlinkage void __arm_smccc_smc(unsigned long a0, unsigned long a1,
                        unsigned long a2, unsigned long a3, unsigned long a4,
                        unsigned long a5, unsigned long a6, unsigned long a7,
                        struct arm_smccc_res *res, struct arm_smccc_quirk *quirk);
+#else
+static inline void __arm_smccc_smc(unsigned long a0, unsigned long a1,
+                       unsigned long a2, unsigned long a3, unsigned long a4,
+                       unsigned long a5, unsigned long a6, unsigned long a7,
+                       struct arm_smccc_res *res, struct arm_smccc_quirk *quirk)
+{
+       *res = (struct arm_smccc_res){};
+}
+#endif
 
 /**
  * __arm_smccc_hvc() - make HVC calls

diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h
index c0475d1..81cad9e 100644 (file)
--- a/include/linux/qcom_scm.h
+++ b/include/linux/qcom_scm.h
@@ -61,7 +61,6 @@ enum qcom_scm_ice_cipher {
 #define QCOM_SCM_PERM_RW (QCOM_SCM_PERM_READ | QCOM_SCM_PERM_WRITE)
 #define QCOM_SCM_PERM_RWX (QCOM_SCM_PERM_RW | QCOM_SCM_PERM_EXEC)
 
-#if IS_ENABLED(CONFIG_QCOM_SCM)
 extern bool qcom_scm_is_available(void);
 
 extern int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);
@@ -115,74 +114,4 @@ extern int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
 extern int qcom_scm_lmh_profile_change(u32 profile_id);
 extern bool qcom_scm_lmh_dcvsh_available(void);
 
-#else
-
-#include <linux/errno.h>
-
-static inline bool qcom_scm_is_available(void) { return false; }
-
-static inline int qcom_scm_set_cold_boot_addr(void *entry,
-               const cpumask_t *cpus) { return -ENODEV; }
-static inline int qcom_scm_set_warm_boot_addr(void *entry,
-               const cpumask_t *cpus) { return -ENODEV; }
-static inline void qcom_scm_cpu_power_down(u32 flags) {}
-static inline u32 qcom_scm_set_remote_state(u32 state,u32 id)
-               { return -ENODEV; }
-
-static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
-               size_t size) { return -ENODEV; }
-static inline int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
-               phys_addr_t size) { return -ENODEV; }
-static inline int qcom_scm_pas_auth_and_reset(u32 peripheral)
-               { return -ENODEV; }
-static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }
-static inline bool qcom_scm_pas_supported(u32 peripheral) { return false; }
-
-static inline int qcom_scm_io_readl(phys_addr_t addr, unsigned int *val)
-               { return -ENODEV; }
-static inline int qcom_scm_io_writel(phys_addr_t addr, unsigned int val)
-               { return -ENODEV; }
-
-static inline bool qcom_scm_restore_sec_cfg_available(void) { return false; }
-static inline int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare)
-               { return -ENODEV; }
-static inline int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size)
-               { return -ENODEV; }
-static inline int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
-               { return -ENODEV; }
-extern inline int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
-                                                u32 cp_nonpixel_start,
-                                                u32 cp_nonpixel_size)
-               { return -ENODEV; }
-static inline int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
-               unsigned int *src, const struct qcom_scm_vmperm *newvm,
-               unsigned int dest_cnt) { return -ENODEV; }
-
-static inline bool qcom_scm_ocmem_lock_available(void) { return false; }
-static inline int qcom_scm_ocmem_lock(enum qcom_scm_ocmem_client id, u32 offset,
-               u32 size, u32 mode) { return -ENODEV; }
-static inline int qcom_scm_ocmem_unlock(enum qcom_scm_ocmem_client id,
-               u32 offset, u32 size) { return -ENODEV; }
-
-static inline bool qcom_scm_ice_available(void) { return false; }
-static inline int qcom_scm_ice_invalidate_key(u32 index) { return -ENODEV; }
-static inline int qcom_scm_ice_set_key(u32 index, const u8 *key, u32 key_size,
-                                      enum qcom_scm_ice_cipher cipher,
-                                      u32 data_unit_size) { return -ENODEV; }
-
-static inline bool qcom_scm_hdcp_available(void) { return false; }
-static inline int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
-               u32 *resp) { return -ENODEV; }
-
-static inline int qcom_scm_qsmmu500_wait_safe_toggle(bool en)
-               { return -ENODEV; }
-
-static inline int qcom_scm_lmh_dcvsh(u32 payload_fn, u32 payload_reg, u32 payload_val,
-                                    u64 limit_node, u32 node_id, u64 version)
-               { return -ENODEV; }
-
-static inline int qcom_scm_lmh_profile_change(u32 profile_id) { return -ENODEV; }
-
-static inline bool qcom_scm_lmh_dcvsh_available(void) { return -ENODEV; }
-#endif
 #endif