| #ifndef __ASM_SH_CACHEFLUSH_H |
| #define __ASM_SH_CACHEFLUSH_H |
| |
| #ifdef __KERNEL__ |
| |
| #include <linux/mm.h> |
| |
| /* |
| * Cache flushing: |
| * |
| * - flush_cache_all() flushes entire cache |
| * - flush_cache_mm(mm) flushes the specified mm context's cache lines |
| * - flush_cache_dup mm(mm) handles cache flushing when forking |
| * - flush_cache_page(mm, vmaddr, pfn) flushes a single page |
| * - flush_cache_range(vma, start, end) flushes a range of pages |
| * |
| * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache |
| * - flush_icache_range(start, end) flushes(invalidates) a range for icache |
| * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache |
| * - flush_cache_sigtramp(vaddr) flushes the signal trampoline |
| */ |
| extern void (*local_flush_cache_all)(void *args); |
| extern void (*local_flush_cache_mm)(void *args); |
| extern void (*local_flush_cache_dup_mm)(void *args); |
| extern void (*local_flush_cache_page)(void *args); |
| extern void (*local_flush_cache_range)(void *args); |
| extern void (*local_flush_dcache_page)(void *args); |
| extern void (*local_flush_icache_range)(void *args); |
| extern void (*local_flush_icache_page)(void *args); |
| extern void (*local_flush_cache_sigtramp)(void *args); |
| |
| static inline void cache_noop(void *args) { } |
| |
| extern void (*__flush_wback_region)(void *start, int size); |
| extern void (*__flush_purge_region)(void *start, int size); |
| extern void (*__flush_invalidate_region)(void *start, int size); |
| |
| extern void flush_cache_all(void); |
| extern void flush_cache_mm(struct mm_struct *mm); |
| extern void flush_cache_dup_mm(struct mm_struct *mm); |
| extern void flush_cache_page(struct vm_area_struct *vma, |
| unsigned long addr, unsigned long pfn); |
| extern void flush_cache_range(struct vm_area_struct *vma, |
| unsigned long start, unsigned long end); |
| #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 |
| extern void flush_dcache_page(struct page *page); |
| extern void flush_icache_range(unsigned long start, unsigned long end); |
| extern void flush_icache_page(struct vm_area_struct *vma, |
| struct page *page); |
| extern void flush_cache_sigtramp(unsigned long address); |
| |
| struct flusher_data { |
| struct vm_area_struct *vma; |
| unsigned long addr1, addr2; |
| }; |
| |
| #define ARCH_HAS_FLUSH_ANON_PAGE |
| extern void __flush_anon_page(struct page *page, unsigned long); |
| |
| static inline void flush_anon_page(struct vm_area_struct *vma, |
| struct page *page, unsigned long vmaddr) |
| { |
| if (boot_cpu_data.dcache.n_aliases && PageAnon(page)) |
| __flush_anon_page(page, vmaddr); |
| } |
| static inline void flush_kernel_vmap_range(void *addr, int size) |
| { |
| __flush_wback_region(addr, size); |
| } |
| static inline void invalidate_kernel_vmap_range(void *addr, int size) |
| { |
| __flush_invalidate_region(addr, size); |
| } |
| |
| #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE |
| static inline void flush_kernel_dcache_page(struct page *page) |
| { |
| flush_dcache_page(page); |
| } |
| |
| extern void copy_to_user_page(struct vm_area_struct *vma, |
| struct page *page, unsigned long vaddr, void *dst, const void *src, |
| unsigned long len); |
| |
| extern void copy_from_user_page(struct vm_area_struct *vma, |
| struct page *page, unsigned long vaddr, void *dst, const void *src, |
| unsigned long len); |
| |
| #define flush_cache_vmap(start, end) local_flush_cache_all(NULL) |
| #define flush_cache_vunmap(start, end) local_flush_cache_all(NULL) |
| |
| #define flush_dcache_mmap_lock(mapping) do { } while (0) |
| #define flush_dcache_mmap_unlock(mapping) do { } while (0) |
| |
| void kmap_coherent_init(void); |
| void *kmap_coherent(struct page *page, unsigned long addr); |
| void kunmap_coherent(void *kvaddr); |
| |
| #define PG_dcache_clean PG_arch_1 |
| |
| void cpu_cache_init(void); |
| |
| #endif /* __KERNEL__ */ |
| #endif /* __ASM_SH_CACHEFLUSH_H */ |