dma-direct: use __DMA_ATTR_ALLOC_CC_SHARED in alloc/free paths

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Propagate force_dma_unencrypted() into __DMA_ATTR_ALLOC_CC_SHARED in the
dma-direct allocation path and use the attribute to drive the related
decisions.

This updates dma_direct_alloc(), dma_direct_free(), and
dma_direct_alloc_pages() to fold the forced unencrypted case into attrs.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Jiri Pirko <jiri@nvidia.com>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Tested-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Petr Tesarik <ptesarik@suse.com>
Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
Link: https://lore.kernel.org/r/20260717180442.110954-11-aneesh.kumar@kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

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Aneesh Kumar K.V (Arm) 2026-07-17 23:34:28 +05:30 • committed by Marek Szyprowski

parent a6e40900f0

commit b5ef0dd28e

2 changed files with 42 additions and 9 deletions

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42

kernel/dma/direct.c

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9

kernel/dma/mapping.c

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