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| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-12-04 04:09:41 +0100 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-12-17 07:37:12 +0100 |
| commit | 1af1e8a39dc0fab5e50f10462c636da8c1e0cfbb (patch) | |
| tree | 5b0bd8c0077c94c759204fa971f80a9714149b20 /arch/xtensa/include/asm/fixmap.h | |
| parent | xtensa: don't clear swapper_pg_dir in paging_init (diff) | |
| download | linux-1af1e8a39dc0fab5e50f10462c636da8c1e0cfbb.tar.xz linux-1af1e8a39dc0fab5e50f10462c636da8c1e0cfbb.zip | |
xtensa: move fixmap and kmap just above the KSEG
The virtual address space between the page table and the VMALLOC region
is big enough to host KASAN shadow map and there's enough space between
the VMALLOC area and KSEG for the fixmap and kmap.
Move fixmap and kmap to the gap between VMALLOC area and KSEG, just
above the KSEG. Reorder entries in the kernel memory layout printing
code. Drop duplicate PGTABLE_START definition, use
XCHAL_PAGE_TABLE_VADDR instead.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/include/asm/fixmap.h')
| -rw-r--r-- | arch/xtensa/include/asm/fixmap.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/xtensa/include/asm/fixmap.h b/arch/xtensa/include/asm/fixmap.h index 0d30403b6c95..7e25c1b50ac0 100644 --- a/arch/xtensa/include/asm/fixmap.h +++ b/arch/xtensa/include/asm/fixmap.h @@ -44,7 +44,7 @@ enum fixed_addresses { __end_of_fixed_addresses }; -#define FIXADDR_TOP (VMALLOC_START - PAGE_SIZE) +#define FIXADDR_TOP (XCHAL_KSEG_CACHED_VADDR - PAGE_SIZE) #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) #define FIXADDR_START ((FIXADDR_TOP - FIXADDR_SIZE) & PMD_MASK) @@ -63,7 +63,7 @@ static __always_inline unsigned long fix_to_virt(const unsigned int idx) * table. */ BUILD_BUG_ON(FIXADDR_START < - XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE); + TLBTEMP_BASE_1 + TLBTEMP_SIZE); BUILD_BUG_ON(idx >= __end_of_fixed_addresses); return __fix_to_virt(idx); } |