arm64: Implement coherent DMA API based on swiotlb

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This patch adds support for DMA API cache maintenance on SoCs without
hardware device cache coherency.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Catalin Marinas 2013-05-21 17:35:19 +01:00

parent 3690951fc6

commit 7363590d2c

4 changed files with 253 additions and 1 deletions

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7

arch/arm64/include/asm/cacheflush.h

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7

arch/arm64/include/asm/dma-mapping.h

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78

arch/arm64/mm/cache.S

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162

arch/arm64/mm/dma-mapping.c

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