swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing

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Propagate the swiotlb_force into io_tlb_default_mem->force_bounce and
use it to determine whether to bounce the data or not. This will be
useful later to allow for different pools.

Signed-off-by: Claire Chang <tientzu@chromium.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Stefano Stabellini <sstabellini@kernel.org>
Tested-by: Will Deacon <will@kernel.org>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

[v2: Includes Will's fix]

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This commit is contained in:

Claire Chang 2021-06-24 23:55:20 +08:00 • committed by Konrad Rzeszutek Wilk

parent 6f2beb268a

commit 903cd0f315

5 changed files with 20 additions and 3 deletions

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2

drivers/xen/swiotlb-xen.c

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13

include/linux/swiotlb.h

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2

kernel/dma/direct.c

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2

kernel/dma/direct.h

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4

kernel/dma/swiotlb.c

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