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MIPS: DMA: Implement platform hook to perform post-DMA cache flushes.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2015-03-27 15:10:30 +01:00
parent 2530738013
commit 0acbfc66d0
9 changed files with 35 additions and 1 deletions
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4
arch/mips/mm/dma-default.c
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@@ -258,7 +258,7 @@ static void mips_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
if (cpu_needs_post_dma_flush(dev))
__dma_sync(dma_addr_to_page(dev, dma_addr),
dma_addr & ~PAGE_MASK, size, direction);
plat_post_dma_flush(dev);
plat_unmap_dma_mem(dev, dma_addr, size, direction);
}
@@ -312,6 +312,7 @@ static void mips_dma_sync_single_for_cpu(struct device *dev,
if (cpu_needs_post_dma_flush(dev))
__dma_sync(dma_addr_to_page(dev, dma_handle),
dma_handle & ~PAGE_MASK, size, direction);
plat_post_dma_flush(dev);
}
static void mips_dma_sync_single_for_device(struct device *dev,
@@ -331,6 +332,7 @@ static void mips_dma_sync_sg_for_cpu(struct device *dev,
for (i = 0; i < nelems; i++, sg++)
__dma_sync(sg_page(sg), sg->offset, sg->length,
direction);
plat_post_dma_flush(dev);
}
static void mips_dma_sync_sg_for_device(struct device *dev,