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| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-11-05 15:33:20 +0100 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2019-11-26 20:33:39 +0100 |
| commit | f5ee2567921dec4f489c16d4fe22c3a7222d0ce6 (patch) | |
| tree | 54a6a21fad933163b9b486439d852c33b9438a1a /arch/xtensa/mm/kasan_init.c | |
| parent | xtensa: mm: fix PMD folding implementation (diff) | |
| download | linux-f5ee2567921dec4f489c16d4fe22c3a7222d0ce6.tar.xz linux-f5ee2567921dec4f489c16d4fe22c3a7222d0ce6.zip | |
xtensa: get rid of __ARCH_USE_5LEVEL_HACK
xtensa has 2-level page tables and already uses pgtable-nopmd for page
table folding.
Add walks of p4d level where appropriate and drop usage of
__ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Message-Id: <1572964400-16542-3-git-send-email-rppt@kernel.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> [fix up
arch/xtensa/include/asm/fixmap.h and
arch/xtensa/mm/tlb.c]
Diffstat (limited to 'arch/xtensa/mm/kasan_init.c')
| -rw-r--r-- | arch/xtensa/mm/kasan_init.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c index ace98bdf5191..9c957791bb33 100644 --- a/arch/xtensa/mm/kasan_init.c +++ b/arch/xtensa/mm/kasan_init.c @@ -20,7 +20,8 @@ void __init kasan_early_init(void) { unsigned long vaddr = KASAN_SHADOW_START; pgd_t *pgd = pgd_offset_k(vaddr); - pud_t *pud = pud_offset(pgd, vaddr); + p4d_t *p4d = p4d_offset(pgd, vaddr); + pud_t *pud = pud_offset(p4d, vaddr); pmd_t *pmd = pmd_offset(pud, vaddr); int i; @@ -43,7 +44,8 @@ static void __init populate(void *start, void *end) unsigned long i, j; unsigned long vaddr = (unsigned long)start; pgd_t *pgd = pgd_offset_k(vaddr); - pud_t *pud = pud_offset(pgd, vaddr); + p4d_t *p4d = p4d_offset(pgd, vaddr); + pud_t *pud = pud_offset(p4d, vaddr); pmd_t *pmd = pmd_offset(pud, vaddr); pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE); |