diff options
Diffstat (limited to 'arch/arm/mm/consistent.c')
-rw-r--r-- | arch/arm/mm/consistent.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c index 6a9c362fef5e..1f9f94f9af4b 100644 --- a/arch/arm/mm/consistent.c +++ b/arch/arm/mm/consistent.c | |||
@@ -205,9 +205,10 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, | |||
205 | * kernel direct-mapped region for device DMA. | 205 | * kernel direct-mapped region for device DMA. |
206 | */ | 206 | */ |
207 | { | 207 | { |
208 | unsigned long kaddr = (unsigned long)page_address(page); | 208 | void *ptr = page_address(page); |
209 | memset(page_address(page), 0, size); | 209 | memset(ptr, 0, size); |
210 | dmac_flush_range(kaddr, kaddr + size); | 210 | dmac_flush_range(ptr, ptr + size); |
211 | outer_flush_range(__pa(ptr), __pa(ptr) + size); | ||
211 | } | 212 | } |
212 | 213 | ||
213 | /* | 214 | /* |
@@ -480,20 +481,24 @@ core_initcall(consistent_init); | |||
480 | * platforms with CONFIG_DMABOUNCE. | 481 | * platforms with CONFIG_DMABOUNCE. |
481 | * Use the driver DMA support - see dma-mapping.h (dma_sync_*) | 482 | * Use the driver DMA support - see dma-mapping.h (dma_sync_*) |
482 | */ | 483 | */ |
483 | void consistent_sync(void *vaddr, size_t size, int direction) | 484 | void consistent_sync(const void *start, size_t size, int direction) |
484 | { | 485 | { |
485 | unsigned long start = (unsigned long)vaddr; | 486 | const void *end = start + size; |
486 | unsigned long end = start + size; | 487 | |
488 | BUG_ON(!virt_addr_valid(start) || !virt_addr_valid(end - 1)); | ||
487 | 489 | ||
488 | switch (direction) { | 490 | switch (direction) { |
489 | case DMA_FROM_DEVICE: /* invalidate only */ | 491 | case DMA_FROM_DEVICE: /* invalidate only */ |
490 | dmac_inv_range(start, end); | 492 | dmac_inv_range(start, end); |
493 | outer_inv_range(__pa(start), __pa(end)); | ||
491 | break; | 494 | break; |
492 | case DMA_TO_DEVICE: /* writeback only */ | 495 | case DMA_TO_DEVICE: /* writeback only */ |
493 | dmac_clean_range(start, end); | 496 | dmac_clean_range(start, end); |
497 | outer_clean_range(__pa(start), __pa(end)); | ||
494 | break; | 498 | break; |
495 | case DMA_BIDIRECTIONAL: /* writeback and invalidate */ | 499 | case DMA_BIDIRECTIONAL: /* writeback and invalidate */ |
496 | dmac_flush_range(start, end); | 500 | dmac_flush_range(start, end); |
501 | outer_flush_range(__pa(start), __pa(end)); | ||
497 | break; | 502 | break; |
498 | default: | 503 | default: |
499 | BUG(); | 504 | BUG(); |