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| author | Christoph Hellwig <hch@lst.de> | 2019-06-14 15:59:14 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-06-25 14:27:58 +0200 |
| commit | c2f2124e0d447ad02a41a92361b3734366797680 (patch) | |
| tree | 01b1d3e6e2d3f0f93e01b15ce1fac97aed58e841 /kernel/dma | |
| parent | dma-mapping: add a dma_alloc_need_uncached helper (diff) | |
| download | linux-c2f2124e0d447ad02a41a92361b3734366797680.tar.xz linux-c2f2124e0d447ad02a41a92361b3734366797680.zip | |
dma-direct: handle DMA_ATTR_NON_CONSISTENT in common code
Only call into arch_dma_alloc if we require an uncached mapping,
and remove the parisc code manually doing normal cached
DMA_ATTR_NON_CONSISTENT allocations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/direct.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index c2893713bf80..fc354f4f490b 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -191,7 +191,7 @@ void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) { if (!IS_ENABLED(CONFIG_ARCH_HAS_UNCACHED_SEGMENT) && - !dev_is_dma_coherent(dev)) + dma_alloc_need_uncached(dev, attrs)) return arch_dma_alloc(dev, size, dma_handle, gfp, attrs); return dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs); } @@ -200,7 +200,7 @@ void dma_direct_free(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr, unsigned long attrs) { if (!IS_ENABLED(CONFIG_ARCH_HAS_UNCACHED_SEGMENT) && - !dev_is_dma_coherent(dev)) + dma_alloc_need_uncached(dev, attrs)) arch_dma_free(dev, size, cpu_addr, dma_addr, attrs); else dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs); |