diff options
| author | Mark Rutland | 2019-08-14 14:28:48 +0100 |
|---|---|---|
| committer | Will Deacon | 2019-08-14 17:06:58 +0100 |
| commit | 77ad4ce69321abbe26ec92b2a2691a66531eb688 (patch) | |
| tree | 22698a3b56a62124fc144dc7424d3050f47b0bc9 /arch/arm64/mm/mmu.c | |
| parent | 233947ef16a18952d22786770dab1ddafa1ac377 (diff) | |
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/mm/mmu.c')
| -rw-r--r-- | arch/arm64/mm/mmu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 0c8f7e55f859..8e4b7eaff8ce 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -399,7 +399,7 @@ static phys_addr_t pgd_pgtable_alloc(int shift) static void __init create_mapping_noalloc(phys_addr_t phys, unsigned long virt, phys_addr_t size, pgprot_t prot) { - if ((virt >= VA_START) && (virt < VMALLOC_START)) { + if ((virt >= PAGE_END) && (virt < VMALLOC_START)) { pr_warn("BUG: not creating mapping for %pa at 0x%016lx - outside kernel range\n", &phys, virt); return; @@ -426,7 +426,7 @@ void __init create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys, static void update_mapping_prot(phys_addr_t phys, unsigned long virt, phys_addr_t size, pgprot_t prot) { - if ((virt >= VA_START) && (virt < VMALLOC_START)) { + if ((virt >= PAGE_END) && (virt < VMALLOC_START)) { pr_warn("BUG: not updating mapping for %pa at 0x%016lx - outside kernel range\n", &phys, virt); return; |