diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-02 16:13:46 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-24 16:20:22 -0700 |
| commit | 994209410919f2b84b7e4ab2e78785d9715308ad (patch) | |
| tree | a2e076e426d95ae5375b1756629b0aa0f40affba /arch/nios2/include/asm/pgtable.h | |
| parent | 15fa3e8e32692a423209a1808ef098f7ec3174f5 (diff) | |
nios2: implement the new page table range API
Add set_ptes(), update_mmu_cache_range(), flush_icache_pages() and
flush_dcache_folio(). Change the PG_arch_1 (aka PG_dcache_dirty) flag
from being per-page to per-folio.
Link: https://lkml.kernel.org/r/20230802151406.3735276-19-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/nios2/include/asm/pgtable.h')
| -rw-r--r-- | arch/nios2/include/asm/pgtable.h | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/arch/nios2/include/asm/pgtable.h b/arch/nios2/include/asm/pgtable.h index 0f5c2564e9f5..be6bf3e0bd7a 100644 --- a/arch/nios2/include/asm/pgtable.h +++ b/arch/nios2/include/asm/pgtable.h @@ -178,14 +178,21 @@ static inline void set_pte(pte_t *ptep, pte_t pteval) *ptep = pteval; } -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pteval) +static inline void set_ptes(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr) { - unsigned long paddr = (unsigned long)page_to_virt(pte_page(pteval)); - - flush_dcache_range(paddr, paddr + PAGE_SIZE); - set_pte(ptep, pteval); + unsigned long paddr = (unsigned long)page_to_virt(pte_page(pte)); + + flush_dcache_range(paddr, paddr + nr * PAGE_SIZE); + for (;;) { + set_pte(ptep, pte); + if (--nr == 0) + break; + ptep++; + pte_val(pte) += 1; + } } +#define set_ptes set_ptes static inline int pmd_none(pmd_t pmd) { @@ -202,7 +209,7 @@ static inline void pte_clear(struct mm_struct *mm, pte_val(null) = (addr >> PAGE_SHIFT) & 0xf; - set_pte_at(mm, addr, ptep, null); + set_pte(ptep, null); } /* @@ -273,7 +280,10 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) extern void __init paging_init(void); extern void __init mmu_init(void); -extern void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t *pte); +void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma, + unsigned long address, pte_t *ptep, unsigned int nr); + +#define update_mmu_cache(vma, addr, ptep) \ + update_mmu_cache_range(NULL, vma, addr, ptep, 1) #endif /* _ASM_NIOS2_PGTABLE_H */ |