diff options
Diffstat (limited to 'include/asm-mips/cacheflush.h')
| -rw-r--r-- | include/asm-mips/cacheflush.h | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h index 635f1bfb403..a18ba2edc0b 100644 --- a/include/asm-mips/cacheflush.h +++ b/include/asm-mips/cacheflush.h @@ -49,17 +49,29 @@ static inline void flush_dcache_page(struct page *page) extern void (*flush_icache_page)(struct vm_area_struct *vma, struct page *page); -extern void (*flush_icache_range)(unsigned long start, unsigned long end); +extern void (*flush_icache_range)(unsigned long __user start, + unsigned long __user end); #define flush_cache_vmap(start, end) flush_cache_all() #define flush_cache_vunmap(start, end) flush_cache_all() -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { \ - memcpy(dst, (void *) src, len); \ - flush_icache_page(vma, page); \ -} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +static inline void copy_to_user_page(struct vm_area_struct *vma, + struct page *page, unsigned long vaddr, void *dst, const void *src, + unsigned long len) +{ + if (cpu_has_dc_aliases) + flush_cache_page(vma, vaddr, page_to_pfn(page)); + memcpy(dst, src, len); + flush_icache_page(vma, page); +} + +static inline void copy_from_user_page(struct vm_area_struct *vma, + struct page *page, unsigned long vaddr, void *dst, const void *src, + unsigned long len) +{ + if (cpu_has_dc_aliases) + flush_cache_page(vma, vaddr, page_to_pfn(page)); + memcpy(dst, src, len); +} extern void (*flush_cache_sigtramp)(unsigned long addr); extern void (*flush_icache_all)(void); @@ -78,4 +90,7 @@ extern void (*flush_data_cache_page)(unsigned long addr); #define ClearPageDcacheDirty(page) \ clear_bit(PG_dcache_dirty, &(page)->flags) +/* Run kernel code uncached, useful for cache probing functions. */ +unsigned long __init run_uncached(void *func); + #endif /* _ASM_CACHEFLUSH_H */ |