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| author | Mark Rutland <mark.rutland@arm.com> | 2019-08-14 16:28:48 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2019-08-14 19:06:58 +0300 |
| commit | 77ad4ce69321abbe26ec92b2a2691a66531eb688 (patch) | |
| tree | 22698a3b56a62124fc144dc7424d3050f47b0bc9 /arch/arm64/include/asm/pgtable.h | |
| parent | 233947ef16a18952d22786770dab1ddafa1ac377 (diff) | |
| download | linux-77ad4ce69321abbe26ec92b2a2691a66531eb688.tar.xz | |
arm64: memory: rename VA_START to PAGE_END
Prior to commit:
14c127c957c1c607 ("arm64: mm: Flip kernel VA space")
... VA_START described the start of the TTBR1 address space for a given
VA size described by VA_BITS, where all kernel mappings began.
Since that commit, VA_START described a portion midway through the
address space, where the linear map ends and other kernel mappings
begin.
To avoid confusion, let's rename VA_START to PAGE_END, making it clear
that it's not the start of the TTBR1 address space and implying that
it's related to PAGE_OFFSET. Comments and other mnemonics are updated
accordingly, along with a typo fix in the decription of VMEMMAP_SIZE.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 4a695b9ee0f0..979e24fadf35 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -856,8 +856,8 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #define update_mmu_cache_pmd(vma, address, pmd) do { } while (0) -#define kc_vaddr_to_offset(v) ((v) & ~VA_START) -#define kc_offset_to_vaddr(o) ((o) | VA_START) +#define kc_vaddr_to_offset(v) ((v) & ~PAGE_END) +#define kc_offset_to_vaddr(o) ((o) | PAGE_END) #ifdef CONFIG_ARM64_PA_BITS_52 #define phys_to_ttbr(addr) (((addr) | ((addr) >> 46)) & TTBR_BADDR_MASK_52) |