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| author |   Christoph Hellwig <hch@lst.de> | 2019-08-03 12:42:15 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-08-29 16:43:33 +0200 |
| commit | 8e3a68fb55e00e0760bd8023883e064f1f93c62d (patch) | |
| tree | 534cbf26b705987972b800501afec405b9175533 /arch/arm64/mm | |
| parent | dma-mapping: remove arch_dma_mmap_pgprot (diff) | |
| download | linux-dev-8e3a68fb55e00e0760bd8023883e064f1f93c62d.tar.xz linux-dev-8e3a68fb55e00e0760bd8023883e064f1f93c62d.zip | |
dma-mapping: make dma_atomic_pool_init self-contained
The memory allocated for the atomic pool needs to have the same
mapping attributes that we use for remapping, so use
pgprot_dmacoherent instead of open coding it. Also deduct a
suitable zone to allocate the memory from based on the presence
of the DMA zones.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 676efcda51e6..a1d05f669f67 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -28,12 +28,6 @@ void arch_dma_prep_coherent(struct page *page, size_t size) __dma_flush_area(page_address(page), size); } -static int __init arm64_dma_init(void) -{ - return dma_atomic_pool_init(GFP_DMA32, __pgprot(PROT_NORMAL_NC)); -} -arch_initcall(arm64_dma_init); - #ifdef CONFIG_IOMMU_DMA void arch_teardown_dma_ops(struct device *dev) { |