powerpc/dma: split the two __dma_alloc_coherent implementations

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The implemementation for the CONFIG_NOT_COHERENT_CACHE case doesn't share
any code with the one for systems with coherent caches.  Split it off
and merge it with the helpers in dma-noncoherent.c that have no other
callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Christoph Hellwig 2018-12-16 18:19:50 +01:00 • committed by Michael Ellerman

parent 9c15a87cfc

commit 44a0337b32

4 changed files with 10 additions and 26 deletions

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5

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

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14

arch/powerpc/kernel/dma.c

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15

arch/powerpc/mm/dma-noncoherent.c

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2

arch/powerpc/platforms/44x/warp.c

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