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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2023-09-25 21:31:20 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-10-19 09:12:44 +0300 |
| commit | da9554e0fe3c7b46912a361a803b50f2655ff30f (patch) | |
| tree | af25724a05e90df6fff859521faaf1c92b61a61f /arch/powerpc/include/asm/book3s | |
| parent | 93f81f6eea10f497e892c52998a2194b4e16c91d (diff) | |
| download | linux-da9554e0fe3c7b46912a361a803b50f2655ff30f.tar.xz | |
powerpc: Refactor update_mmu_cache_range()
On nohash, this function voids except for E500 with hugepages.
On book3s, this function is for hash MMUs only.
Combine those tests and rename E500 update_mmu_cache_range()
as __update_mmu_cache() which gets called by
update_mmu_cache_range().
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/b029842cb6783cbeb43d202e69a90341d65295a4.1695659959.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/book3s')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/pgtable.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/powerpc/include/asm/book3s/pgtable.h b/arch/powerpc/include/asm/book3s/pgtable.h index 6f4578daea6c..f42d68c6b314 100644 --- a/arch/powerpc/include/asm/book3s/pgtable.h +++ b/arch/powerpc/include/asm/book3s/pgtable.h @@ -8,28 +8,4 @@ #include <asm/book3s/32/pgtable.h> #endif -#ifndef __ASSEMBLY__ -void __update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep); - -/* - * This gets called at the end of handling a page fault, when - * the kernel has put a new PTE into the page table for the process. - * We use it to ensure coherency between the i-cache and d-cache - * for the page which has just been mapped in. - * On machines which use an MMU hash table, we use this to put a - * corresponding HPTE into the hash table ahead of time, instead of - * waiting for the inevitable extra hash-table miss exception. - */ -static inline void update_mmu_cache_range(struct vm_fault *vmf, - struct vm_area_struct *vma, unsigned long address, - pte_t *ptep, unsigned int nr) -{ - if (IS_ENABLED(CONFIG_PPC32) && !mmu_has_feature(MMU_FTR_HPTE_TABLE)) - return; - if (radix_enabled()) - return; - __update_mmu_cache(vma, address, ptep); -} - -#endif /* __ASSEMBLY__ */ #endif |