Benjamin Herrenschmidt 6090912c4a powerpc: Implement dma_mmap_coherent() ...

This is used by Alsa to mmap buffers allocated with dma_alloc_coherent()
into userspace. We need a special variant to handle machines with
non-coherent DMAs as those buffers have "special" virt addresses and
require non-cachable mappings

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2011-03-30 10:44:00 +11:00

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