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Subject[PATCH] acpi, apei, arm64: APEI initial support for aarch64.
Date
From: Tomasz Nowicki <tomasz.nowicki@linaro.org>

This commit provides APEI arch-specific bits for aarch64

Changelog:
Fu Wei:
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>
Signed-off-by: Fu Wei <fu.wei@linaro.org>
---
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/acpi.h | 11 +++++++++++
arch/arm64/kernel/acpi.c | 4 ++++
3 files changed, 16 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 318175f..6144c9d 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 a17b623..ced6e25 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -22,6 +22,7 @@
#ifdef CONFIG_ACPI_APEI
#include <linux/efi.h>
#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
#endif

/* Macros for consistency checks of the GICC subtable of MADT */
@@ -52,6 +53,9 @@ 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)
{
@@ -89,6 +93,13 @@ static inline bool acpi_has_cpu_in_madt(void)
static inline void arch_fix_phys_package_id(int num, u32 slot) { }
void __init acpi_init_cpus(void);

+#ifdef CONFIG_ACPI_APEI
+static inline void arch_apei_flush_tlb_one(unsigned long addr)
+{
+ flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
+}
+#endif
+
#else
static inline void acpi_init_cpus(void) { }
#endif /* CONFIG_ACPI */
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index 19de753..bd1be9a 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -36,6 +36,10 @@ 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;

--
1.9.1


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