On Wed, Jul 01, 2026 at 11:19:18AM +0530, Aneesh Kumar K.V (Arm) wrote:

Fold encrypted/decrypted pgprot selection into dma_pgprot() so callers
do not need to adjust the page protection separately.

Update dma_pgprot() to apply pgprot_decrypted() when DMA_ATTR_CC_SHARED or
__DMA_ATTR_ALLOC_CC_SHARED is set and pgprot_encrypted() otherwise Convert
the dma-direct mmap paths to pass DMA_ATTR_CC_SHARED instead of open-coding
force_dma_unencrypted() handling around dma_pgprot().

Tested-by: Jiri Pirko <redacted>
Tested-by: Michael Kelley <redacted>
Tested-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
---
 kernel/dma/direct.c  |  8 +++-----
 kernel/dma/mapping.c | 16 ++++++++++++----
 2 files changed, 15 insertions(+), 9 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason