Messages in this thread Patch in this message | | | From | fu.wei@linaro ... | Subject | [PATCH v2] acpi, apei, arm64: APEI initial support for aarch64. | Date | Wed, 2 Dec 2015 22:59:05 +0800 |
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From: Tomasz Nowicki <tomasz.nowicki@linaro.org>
This commit provides APEI arch-specific bits for aarch64
Changelog: v2: Rebase to latest kernel version(4.4-rc3). Move arch_apei_flush_tlb_one() to arch/arm64/kernel/acpi.c
v1: https://lkml.org/lkml/2015/8/14/199 Move arch_apei_flush_tlb_one() to arch/arm64/include/asm/apci.h. Delete arch/arm64/kernel/apei.c. Add "#ifdef CONFIG_ACPI_APEI" for "acpi_disable_cmcff".
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Tested-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Signed-off-by: Fu Wei <fu.wei@linaro.org> --- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/acpi.h | 4 ++++ arch/arm64/kernel/acpi.c | 10 ++++++++++ 3 files changed, 15 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 871f217..58c8992 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -3,6 +3,7 @@ config ARM64 select ACPI_CCA_REQUIRED if ACPI select ACPI_GENERIC_GSI if ACPI select ACPI_REDUCED_HARDWARE_ONLY if ACPI + select HAVE_ACPI_APEI if ACPI select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_GCOV_PROFILE_ALL diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index caafd63..0d70c74 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -46,6 +46,9 @@ typedef u64 phys_cpuid_t; extern int acpi_disabled; extern int acpi_noirq; extern int acpi_pci_disabled; +#ifdef CONFIG_ACPI_APEI +extern int acpi_disable_cmcff; +#endif static inline void disable_acpi(void) { @@ -94,6 +97,7 @@ static inline const char *acpi_get_enable_method(int cpu) #ifdef CONFIG_ACPI_APEI pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr); +void arch_apei_flush_tlb_one(unsigned long addr); #endif #endif /*_ASM_ACPI_H*/ diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index d1ce8e2..811fea2 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -32,6 +32,7 @@ #ifdef CONFIG_ACPI_APEI # include <linux/efi.h> # include <asm/pgtable.h> +# include <asm/tlbflush.h> #endif int acpi_noirq = 1; /* skip ACPI IRQ initialization */ @@ -41,6 +42,10 @@ EXPORT_SYMBOL(acpi_disabled); int acpi_pci_disabled = 1; /* skip ACPI PCI scan and IRQ initialization */ EXPORT_SYMBOL(acpi_pci_disabled); +#ifdef CONFIG_ACPI_APEI +int acpi_disable_cmcff; +#endif + static bool param_acpi_off __initdata; static bool param_acpi_force __initdata; @@ -233,4 +238,9 @@ pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) return __pgprot(PROT_NORMAL_NC); return __pgprot(PROT_DEVICE_nGnRnE); } + +void arch_apei_flush_tlb_one(unsigned long addr) +{ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE); +} #endif -- 2.5.0
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