dma-direct: select DMA address encoding from __DMA_ATTR_ALLOC_CC_SHARED

Make the dma-direct helpers derive the DMA address encoding from
__DMA_ATTR_ALLOC_CC_SHARED instead of implicitly relying on
force_dma_unencrypted() inside phys_to_dma_direct()

Pass an explicit unencrypted/decrypted state into phys_to_dma_direct(),
make the alloc paths return DMA addresses that match the requested buffer
encryption state. Also only call dma_set_decrypted() when
__DMA_ATTR_ALLOC_CC_SHARED is actually set.

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>
Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Link: https://lore.kernel.org/r/20260717180442.110954-20-aneesh.kumar@kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

0 files changed, 0 insertions, 0 deletions