powerpc/pseries/dma: Allow SWIOTLB

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The commit 8617a5c5bc ("powerpc/dma: handle iommu bypass in
dma_iommu_ops") merged direct DMA ops into the IOMMU DMA ops allowing
SWIOTLB as well but only for mapping; the unmapping and bouncing parts
were left unmodified.

This adds missing direct unmapping calls to .unmap_page() and
.unmap_sg().

This adds missing sync callbacks and directs them to the direct DMA
hooks.

Fixes: 8617a5c5bc ("powerpc/dma: handle iommu bypass in dma_iommu_ops")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

...

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Alexey Kardashevskiy 2019-05-07 16:25:58 +10:00 • committed by Michael Ellerman

parent 24911acd64

commit efd176a04b

1 changed files with 36 additions and 0 deletions

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arch/powerpc/kernel/dma-iommu.c

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