diff options
Diffstat (limited to 'arch/arm64/include/asm/cacheflush.h')
| -rw-r--r-- | arch/arm64/include/asm/cacheflush.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h index 3300cbd18a89..a5176cf32dad 100644 --- a/arch/arm64/include/asm/cacheflush.h +++ b/arch/arm64/include/asm/cacheflush.h @@ -85,6 +85,13 @@ static inline void flush_cache_page(struct vm_area_struct *vma, } /* + * 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 * space" model to handle this. @@ -116,6 +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) \ @@ -123,9 +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(). @@ -145,7 +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) |