diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-10-08 08:28:26 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-10-08 08:28:26 -0300 |
| commit | f19866e5cb04f8f007cb422132ea4611cdacc8e3 (patch) | |
| tree | ee8d9b12a8ec6335ed76b3c58ba0f3e1fea7616e /arch/arm64/include/asm/memory.h | |
| parent | a700f2d8e79ff80041078f160fe1edccf89b0c66 (diff) | |
Linux-libre 4.2.3-gnupck-4.2.3-gnu
Diffstat (limited to 'arch/arm64/include/asm/memory.h')
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index f800d45ea..44a59c20e 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -114,6 +114,14 @@ extern phys_addr_t memstart_addr; #define PHYS_OFFSET ({ memstart_addr; }) /* + * The maximum physical address that the linear direct mapping + * of system RAM can cover. (PAGE_OFFSET can be interpreted as + * a 2's complement signed quantity and negated to derive the + * maximum size of the linear mapping.) + */ +#define MAX_MEMBLOCK_ADDR ({ memstart_addr - PAGE_OFFSET - 1; }) + +/* * PFNs are used to describe any physical page; this means * PFN 0 == physical address 0. * |