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| author |   Mike Rapoport <rppt@linux.ibm.com> | 2019-11-21 18:21:33 +0200 |
|---|---|---|
| committer |   Paul Burton <paulburton@kernel.org> | 2019-11-22 10:51:22 -0800 |
| commit | 2bee1b58484f036e3e2dc657e524d095d0d332b3 (patch) | |
| tree | e3ee8827fbfbafa8f3a8a3b82c7e46b5de6048a7 /arch/mips/mm/tlb-r4k.c | |
| parent | mips: drop __pXd_offset() macros that duplicate pXd_index() ones (diff) | |
| download | linux-dev-2bee1b58484f036e3e2dc657e524d095d0d332b3.tar.xz linux-dev-2bee1b58484f036e3e2dc657e524d095d0d332b3.zip | |
mips: add support for folded p4d page tables
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5leve-fixup.h with pgtable-nop4d.h and
drop usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: Mike Rapoport <rppt@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/mips/mm/tlb-r4k.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 83b450ddbbc2..d7a9d5f211f0 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -295,6 +295,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte) { unsigned long flags; pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -320,7 +321,8 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte) mtc0_tlbw_hazard(); tlb_probe(); tlb_probe_hazard(); - pudp = pud_offset(pgdp, address); + p4dp = p4d_offset(pgdp, address); + pudp = pud_offset(p4dp, address); pmdp = pmd_offset(pudp, address); idx = read_c0_index(); #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT |