diff options
Diffstat (limited to 'sound/core/memalloc.c')
| -rw-r--r-- | sound/core/memalloc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 58bab2cfdb87..084b2600a423 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -407,6 +407,10 @@ static void snd_dma_dev_free(struct snd_dma_buffer *dmab) static int snd_dma_dev_mmap(struct snd_dma_buffer *dmab, struct vm_area_struct *area) { +#ifdef CONFIG_X86 + if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_WC) + area->vm_page_prot = pgprot_writecombine(area->vm_page_prot); +#endif return dma_mmap_coherent(dmab->dev.dev, area, dmab->area, dmab->addr, dmab->bytes); } |