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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-12-16 11:06:33 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-10-18 07:49:36 -0400 |
| commit | 08b0b0059bf1c2e8637f724cc7cc4d29b1e808de (patch) | |
| tree | 795315583bdbd72e41a2509662d48f377d477893 /arch/xtensa | |
| parent | mm: Add folio_raw_mapping() (diff) | |
| download | linux-dev-08b0b0059bf1c2e8637f724cc7cc4d29b1e808de.tar.xz linux-dev-08b0b0059bf1c2e8637f724cc7cc4d29b1e808de.zip | |
mm: Add flush_dcache_folio()
This is a default implementation which calls flush_dcache_page() on
each page in the folio. If architectures can do better, they should
implement their own version of it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/cacheflush.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h index cf907e5bf2f2..a8a041609c5d 100644 --- a/arch/xtensa/include/asm/cacheflush.h +++ b/arch/xtensa/include/asm/cacheflush.h @@ -120,7 +120,8 @@ void flush_cache_page(struct vm_area_struct*, #define flush_cache_vunmap(start,end) flush_cache_all() #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 -extern void flush_dcache_page(struct page*); +void flush_dcache_page(struct page *); +void flush_dcache_folio(struct folio *); void local_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); @@ -137,7 +138,9 @@ void local_flush_cache_page(struct vm_area_struct *vma, #define flush_cache_vunmap(start,end) do { } while (0) #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO #define flush_dcache_page(page) do { } while (0) +static inline void flush_dcache_folio(struct folio *folio) { } #define flush_icache_range local_flush_icache_range #define flush_cache_page(vma, addr, pfn) do { } while (0) |