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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-19 13:27:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-19 13:27:23 -0700 |
| commit | 671df189537883f36cf9c7d4f9495bfac0f86627 (patch) | |
| tree | 22e5f598ed1f5d9b2218d85d4426140f804d61e6 /sound | |
| parent | c9fe5630dae1df2328d82042602e2c4d1add8d57 (diff) | |
| parent | c7d9eccb3c1e802c5cbb2a764eb0eb9807d9f12e (diff) | |
| download | linux-671df189537883f36cf9c7d4f9495bfac0f86627.tar.gz linux-671df189537883f36cf9c7d4f9495bfac0f86627.tar.bz2 linux-671df189537883f36cf9c7d4f9495bfac0f86627.zip | |
Merge tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- add dma-mapping and block layer helpers to take care of IOMMU merging
for mmc plus subsequent fixups (Yoshihiro Shimoda)
- rework handling of the pgprot bits for remapping (me)
- take care of the dma direct infrastructure for swiotlb-xen (me)
- improve the dma noncoherent remapping infrastructure (me)
- better defaults for ->mmap, ->get_sgtable and ->get_required_mask
(me)
- cleanup mmaping of coherent DMA allocations (me)
- various misc cleanups (Andy Shevchenko, me)
* tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping: (41 commits)
mmc: renesas_sdhi_internal_dmac: Add MMC_CAP2_MERGE_CAPABLE
mmc: queue: Fix bigger segments usage
arm64: use asm-generic/dma-mapping.h
swiotlb-xen: merge xen_unmap_single into xen_swiotlb_unmap_page
swiotlb-xen: simplify cache maintainance
swiotlb-xen: use the same foreign page check everywhere
swiotlb-xen: remove xen_swiotlb_dma_mmap and xen_swiotlb_dma_get_sgtable
xen: remove the exports for xen_{create,destroy}_contiguous_region
xen/arm: remove xen_dma_ops
xen/arm: simplify dma_cache_maint
xen/arm: use dev_is_dma_coherent
xen/arm: consolidate page-coherent.h
xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainance
arm: remove wrappers for the generic dma remap helpers
dma-mapping: introduce a dma_common_find_pages helper
dma-mapping: always use VM_DMA_COHERENT for generic DMA remap
vmalloc: lift the arm flag for coherent mappings to common code
dma-mapping: provide a better default ->get_required_mask
dma-mapping: remove the dma_declare_coherent_memory export
remoteproc: don't allow modular build
...
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/pcm_native.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 11e653c8aa0e..91c6ad58729f 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -220,13 +220,12 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream) { if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP)) return false; - /* architecture supports dma_mmap_coherent()? */ -#if defined(CONFIG_ARCH_NO_COHERENT_DMA_MMAP) || !defined(CONFIG_HAS_DMA) - if (!substream->ops->mmap && - substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) - return false; -#endif - return true; + + if (substream->ops->mmap || + substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_DEV) + return true; + + return dma_can_mmap(substream->dma_buffer.dev.dev); } static int constrain_mask_params(struct snd_pcm_substream *substream, |