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arm64: memory: rename VA_START to PAGE_END

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Prior to commit:

  14c127c957 ("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>
This commit is contained in:
Mark Rutland
2019-08-14 14:28:48 +01:00
committed by Will Deacon
parent 233947ef16
commit 77ad4ce693
6 changed files with 19 additions and 19 deletions
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2
arch/arm64/kernel/hibernate.c
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@ -496,7 +496,7 @@ int swsusp_arch_resume(void)
rc = -ENOMEM;
goto out;
}
rc = copy_page_tables(tmp_pg_dir, PAGE_OFFSET, VA_START);
rc = copy_page_tables(tmp_pg_dir, PAGE_OFFSET, PAGE_END);
if (rc)
goto out;