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| author | Catalin Marinas <catalin.marinas@arm.com> | 2014-07-15 19:35:38 +0400 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-07-23 18:27:51 +0400 |
| commit | 6b4fee241dd7c4b11cae4432bfa899a386d71f26 (patch) | |
| tree | 6f49796ecbc00a9a25bd53b1885eeecd1dd6e730 /arch/arm64/include/asm/pgtable-hwdef.h | |
| parent | abe669d7e1a8f9163eb7e8e153e7257d38c1ba3e (diff) | |
| download | linux-6b4fee241dd7c4b11cae4432bfa899a386d71f26.tar.xz | |
arm64: Remove asm/pgtable-*level-hwdef.h files
The macros in these files can easily be computed based on PAGE_SHIFT and
VA_BITS, so just remove them and add the corresponding macros to
asm/pgtable-hwdef.h
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Jungseok Lee <jungseoklee85@gmail.com>
Diffstat (limited to 'arch/arm64/include/asm/pgtable-hwdef.h')
| -rw-r--r-- | arch/arm64/include/asm/pgtable-hwdef.h | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index d453e8bfef06..88174e0bfafe 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -16,15 +16,45 @@ #ifndef __ASM_PGTABLE_HWDEF_H #define __ASM_PGTABLE_HWDEF_H -#if CONFIG_ARM64_PGTABLE_LEVELS == 2 -#include <asm/pgtable-2level-hwdef.h> -#elif CONFIG_ARM64_PGTABLE_LEVELS == 3 -#include <asm/pgtable-3level-hwdef.h> -#else -#include <asm/pgtable-4level-hwdef.h> +#define PTRS_PER_PTE (1 << (PAGE_SHIFT - 3)) + +/* + * PMD_SHIFT determines the size a level 2 page table entry can map. + */ +#if CONFIG_ARM64_PGTABLE_LEVELS > 2 +#define PMD_SHIFT ((PAGE_SHIFT - 3) * 2 + 3) +#define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE-1)) +#define PTRS_PER_PMD PTRS_PER_PTE +#endif + +/* + * PUD_SHIFT determines the size a level 1 page table entry can map. + */ +#if CONFIG_ARM64_PGTABLE_LEVELS > 3 +#define PUD_SHIFT ((PAGE_SHIFT - 3) * 3 + 3) +#define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) +#define PUD_MASK (~(PUD_SIZE-1)) +#define PTRS_PER_PUD PTRS_PER_PTE #endif /* + * PGDIR_SHIFT determines the size a top-level page table entry can map + * (depending on the configuration, this level can be 0, 1 or 2). + */ +#define PGDIR_SHIFT ((PAGE_SHIFT - 3) * CONFIG_ARM64_PGTABLE_LEVELS + 3) +#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) +#define PGDIR_MASK (~(PGDIR_SIZE-1)) +#define PTRS_PER_PGD (1 << (VA_BITS - PGDIR_SHIFT)) + +/* + * Section address mask and size definitions. + */ +#define SECTION_SHIFT PMD_SHIFT +#define SECTION_SIZE (_AC(1, UL) << SECTION_SHIFT) +#define SECTION_MASK (~(SECTION_SIZE-1)) + +/* * Hardware page table definitions. * * Level 1 descriptor (PUD). |