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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-02 16:13:39 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-24 16:20:20 -0700 |
| commit | e724e7aaf9ca794670a4d4931af7a7e24e37fec3 (patch) | |
| tree | 5ca7a1d16815af39263ddb30a51ae70a4308110b /arch/csky/include | |
| parent | 4a169d61c2ede9fdf27103e1f454d4a0401d9025 (diff) | |
| download | linux-e724e7aaf9ca794670a4d4931af7a7e24e37fec3.tar.gz linux-e724e7aaf9ca794670a4d4931af7a7e24e37fec3.tar.bz2 linux-e724e7aaf9ca794670a4d4931af7a7e24e37fec3.zip | |
csky: implement the new page table range API
Add PFN_PTE_SHIFT, update_mmu_cache_range() and flush_dcache_folio().
Change the PG_dcache_clean flag from being per-page to per-folio.
Link: https://lkml.kernel.org/r/20230802151406.3735276-12-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Guo Ren <guoren@kernel.org>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/csky/include')
| -rw-r--r-- | arch/csky/include/asm/pgtable.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/csky/include/asm/pgtable.h b/arch/csky/include/asm/pgtable.h index d4042495febc..42405037c871 100644 --- a/arch/csky/include/asm/pgtable.h +++ b/arch/csky/include/asm/pgtable.h @@ -28,6 +28,7 @@ #define pgd_ERROR(e) \ pr_err("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) +#define PFN_PTE_SHIFT PAGE_SHIFT #define pmd_pfn(pmd) (pmd_phys(pmd) >> PAGE_SHIFT) #define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT)) #define pte_clear(mm, addr, ptep) set_pte((ptep), \ @@ -90,7 +91,6 @@ static inline void set_pte(pte_t *p, pte_t pte) /* prevent out of order excution */ smp_mb(); } -#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) static inline pte_t *pmd_page_vaddr(pmd_t pmd) { @@ -263,8 +263,10 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init(void); -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 *pte, unsigned int nr); +#define update_mmu_cache(vma, addr, ptep) \ + update_mmu_cache_range(NULL, vma, addr, ptep, 1) #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ remap_pfn_range(vma, vaddr, pfn, size, prot) |