[PATCH v2 5/5] ACPI: ARM64: support for ACPI_TABLE_UPGRADE
From: catalin.marinas@arm.com (Catalin Marinas)
Date: 2016-05-27 17:14:39
Also in:
linux-acpi, lkml
On Thu, May 19, 2016 at 07:15:16PM +0300, Aleksey Makarov wrote:
quoted hunk ↗ jump to hunk
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index aee323b..d75f6c7 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h@@ -113,4 +113,6 @@ static inline const char *acpi_get_enable_method(int cpu) pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr); #endif +#define ACPI_TABLE_UPGRADE_MAX_PHYS PFN_PHYS(max_pfn) + #endif /*_ASM_ACPI_H*/diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index feab2ee..4bce811 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c@@ -261,11 +261,13 @@ void __init setup_arch(char **cmdline_p) efi_init(); arm64_memblock_init(); + paging_init(); + + acpi_table_upgrade(); + /* Parse the ACPI tables for possible boot-time configuration */ acpi_boot_table_init(); - paging_init(); - if (acpi_disabled) unflatten_device_tree();
So ACPI_TABLE_UPGRADE_MAX_PHYS is defined in terms of max_pfn and presumably used by acpi_table_upgrade(). max_pfn is only initialised in the arm64 bootmem_init() called just below the last line of context in the hunk above. -- Catalin