diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2020-01-31 13:45:34 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2020-02-10 10:57:48 +0100 |
| commit | 13076a29d52e91d29ab6b13e7279c9eacd0b6dbb (patch) | |
| tree | 0f570e991c449c46f76d9868e3c79c4a38912967 /arch/m68k/include/asm/motorola_pgalloc.h | |
| parent | fd1aa6303c4d6f3c1489eadc5cc37e581c3b41ea (diff) | |
m68k: mm: Unify Motorola MMU page setup
Seeing how there are 5 copies of this magic code, one of which is
unexplainably different, unify and document things.
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Greg Ungerer <gerg@linux-m68k.org>
Link: https://lore.kernel.org/r/20200131125403.597688427@infradead.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/include/asm/motorola_pgalloc.h')
| -rw-r--r-- | arch/m68k/include/asm/motorola_pgalloc.h | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h index ff9cc401ffd1..85af0c602e9f 100644 --- a/arch/m68k/include/asm/motorola_pgalloc.h +++ b/arch/m68k/include/asm/motorola_pgalloc.h @@ -5,6 +5,9 @@ #include <asm/tlb.h> #include <asm/tlbflush.h> +extern void mmu_page_ctor(void *page); +extern void mmu_page_dtor(void *page); + extern pmd_t *get_pointer_table(void); extern int free_pointer_table(pmd_t *); @@ -13,25 +16,21 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) pte_t *pte; pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO); - if (pte) { - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } + if (pte) + mmu_page_ctor(pte); return pte; } static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - cache_page(pte); + mmu_page_dtor(pte); free_page((unsigned long) pte); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { struct page *page; - pte_t *pte; page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0); if(!page) @@ -41,18 +40,16 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm) return NULL; } - pte = kmap(page); - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); + mmu_page_ctor(kmap(page)); kunmap(page); + return page; } static inline void pte_free(struct mm_struct *mm, pgtable_t page) { pgtable_pte_page_dtor(page); - cache_page(kmap(page)); + mmu_page_dtor(kmap(page)); kunmap(page); __free_page(page); } @@ -61,7 +58,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page, unsigned long address) { pgtable_pte_page_dtor(page); - cache_page(kmap(page)); + mmu_page_dtor(kmap(page)); kunmap(page); __free_page(page); } |