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-rw-r--r--sound/core/pcm_native.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index a68d4c6d702c..01a5e05ede95 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2428,6 +2428,7 @@ static int snd_pcm_hwsync(struct snd_pcm_substream *substream)
case SNDRV_PCM_STATE_DRAINING:
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
goto __badfd;
+ /* Fall through */
case SNDRV_PCM_STATE_RUNNING:
if ((err = snd_pcm_update_hw_ptr(substream)) < 0)
break;
@@ -2460,6 +2461,7 @@ static int snd_pcm_delay(struct snd_pcm_substream *substream,
case SNDRV_PCM_STATE_DRAINING:
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
goto __badfd;
+ /* Fall through */
case SNDRV_PCM_STATE_RUNNING:
if ((err = snd_pcm_update_hw_ptr(substream)) < 0)
break;
@@ -3199,6 +3201,14 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *area)
{
area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+#ifdef CONFIG_GENERIC_ALLOCATOR
+ if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_IRAM) {
+ area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
+ return remap_pfn_range(area, area->vm_start,
+ substream->dma_buffer.addr >> PAGE_SHIFT,
+ area->vm_end - area->vm_start, area->vm_page_prot);
+ }
+#endif /* CONFIG_GENERIC_ALLOCATOR */
#ifdef ARCH_HAS_DMA_MMAP_COHERENT
if (!substream->ops->page &&
substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)