m68k: Implement arch_dma_prep_coherent()
When we remap memory as non-cached, to be used as a DMA coherent buffer, we should writeback all cache and invalidate the cache lines so that we make sure we have a clean slate. Implement this using the cache_push() helper. Signed-off-by:Christoph Hellwig <hch@lst.de> Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org>
parent
34dc63a5
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