AMD platform device acp3x_rv_i2s created by parent PCI device driver. Pass struct device of the parent to snd_pcm_lib_preallocate_pages() so dma_alloc_coherent() can use correct dma_ops. Otherwise, it will use default dma_ops which is nommu_dma_ops on x86_64 even when IOMMU is enabled and set to non passthrough mode.
Signed-off-by: Vijendar Mukunda vijendar.mukunda@amd.com --- sound/soc/amd/raven/acp3x-pcm-dma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index a4ade6b..905ed2f 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -385,9 +385,11 @@ static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_pcm_substream *substream)
static int acp3x_dma_new(struct snd_soc_pcm_runtime *rtd) { + struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, + DRV_NAME); + struct device *parent = component->dev->parent; snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV, - rtd->pcm->card->dev, - MIN_BUFFER, MAX_BUFFER); + parent, MIN_BUFFER, MAX_BUFFER); return 0; }