diff options
| -rw-r--r-- | common/bouncebuf.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/common/bouncebuf.c b/common/bouncebuf.c index 6d98920de6..93a35668cc 100644 --- a/common/bouncebuf.c +++ b/common/bouncebuf.c @@ -12,6 +12,7 @@ #include <errno.h> #include <bouncebuf.h> #include <asm/cache.h> +#include <linux/dma-mapping.h> static int addr_aligned(struct bounce_buffer *state) { @@ -59,9 +60,9 @@ int bounce_buffer_start_extalign(struct bounce_buffer *state, void *data, * Flush data to RAM so DMA reads can pick it up, * and any CPU writebacks don't race with DMA writes */ - flush_dcache_range((unsigned long)state->bounce_buffer, - (unsigned long)(state->bounce_buffer) + - state->len_aligned); + dma_map_single(state->bounce_buffer, + state->len_aligned, + DMA_BIDIRECTIONAL); return 0; } @@ -78,9 +79,9 @@ int bounce_buffer_stop(struct bounce_buffer *state) { if (state->flags & GEN_BB_WRITE) { /* Invalidate cache so that CPU can see any newly DMA'd data */ - invalidate_dcache_range((unsigned long)state->bounce_buffer, - (unsigned long)(state->bounce_buffer) + - state->len_aligned); + dma_unmap_single((dma_addr_t)state->bounce_buffer, + state->len_aligned, + DMA_BIDIRECTIONAL); } if (state->bounce_buffer == state->user_buffer) |