diff options
Diffstat (limited to 'arch/arm64/include/asm/cacheflush.h')
| -rw-r--r-- | arch/arm64/include/asm/cacheflush.h | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h index aa3132ab7f2..a5176cf32da 100644 --- a/arch/arm64/include/asm/cacheflush.h +++ b/arch/arm64/include/asm/cacheflush.h @@ -70,13 +70,27 @@ * - size - region size */ extern void flush_cache_all(void); -extern void flush_cache_mm(struct mm_struct *mm); extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); -extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn); extern void flush_icache_range(unsigned long start, unsigned long end); extern void __flush_dcache_area(void *addr, size_t len); extern void __flush_cache_user_range(unsigned long start, unsigned long end); +static inline void flush_cache_mm(struct mm_struct *mm) +{ +} + +static inline void flush_cache_page(struct vm_area_struct *vma, + unsigned long user_addr, unsigned long pfn) +{ +} + +/* + * Cache maintenance functions used by the DMA API. No to be used directly. + */ +extern void __dma_map_area(const void *, size_t, int); +extern void __dma_unmap_area(const void *, size_t, int); +extern void __dma_flush_range(const void *, const void *); + /* * Copy user data from/to a page which is mapped into a different * processes address space. Really, we want to allow our "user @@ -109,6 +123,7 @@ extern void flush_dcache_page(struct page *); static inline void __flush_icache_all(void) { asm("ic ialluis"); + dsb(ish); } #define flush_dcache_mmap_lock(mapping) \ @@ -116,9 +131,6 @@ static inline void __flush_icache_all(void) #define flush_dcache_mmap_unlock(mapping) \ spin_unlock_irq(&(mapping)->tree_lock) -#define flush_icache_user_range(vma,page,addr,len) \ - flush_dcache_page(page) - /* * We don't appear to need to do anything here. In fact, if we did, we'd * duplicate cache flushing elsewhere performed by flush_dcache_page(). @@ -138,7 +150,7 @@ static inline void flush_cache_vmap(unsigned long start, unsigned long end) * set_pte_at() called from vmap_pte_range() does not * have a DSB after cleaning the cache line. */ - dsb(); + dsb(ish); } static inline void flush_cache_vunmap(unsigned long start, unsigned long end) |