diff options
Diffstat (limited to 'arch/arm64/include/asm/acpi.h')
| -rw-r--r-- | arch/arm64/include/asm/acpi.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 0291f6e67028..c5832e452b16 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -19,6 +19,12 @@ #include <asm/psci.h> #include <asm/smp_plat.h> +#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 */ #define ACPI_MADT_GICC_LENGTH \ (acpi_gbl_FADT.header.revision < 6 ? 76 : 80) @@ -47,6 +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 extern u64 spcr_serial_addr; extern int acpi_setup_spcr(void); @@ -92,6 +101,13 @@ static inline void arch_fix_phys_package_id(int num, u32 slot) { } void __init acpi_init_cpus(void); extern phys_addr_t arm64_cpu_parking_addr[]; +#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 */ @@ -100,4 +116,26 @@ static inline const char *acpi_get_enable_method(int cpu) { return acpi_psci_present() ? "psci" : "parking-protocol"; } + +#ifdef CONFIG_ACPI_APEI +/* + * According to "Table 8 Map: EFI memory types to AArch64 memory types" + * of UEFI 2.5 section 2.3.6.1, each EFI memory type is mapped to + * corresponding MAIR attribute encoding. + */ +static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) +{ + u64 attr; + + attr = efi_mem_attributes(addr); + if (attr & EFI_MEMORY_UC) + return __pgprot(PROT_DEVICE_nGnRnE); + if (attr & EFI_MEMORY_WC) + return __pgprot(PROT_NORMAL_NC); + if (attr & EFI_MEMORY_WT) + return __pgprot(PROT_NORMAL_WT); + return __pgprot(PAGE_KERNEL); +} +#endif + #endif /*_ASM_ACPI_H*/ |