iommu/dma: Always allow DMA-FQ when iommupt provides the iommu_domain

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iommupt always supports the semantics required for DMA-FQ, when drivers
are converted to use it they automatically get support.

Detect iommpt directly instead of using IOMMU_CAP_DEFERRED_FLUSH and
remove IOMMU_CAP_DEFERRED_FLUSH from converted drivers.

This will also enable DMA-FQ on RISC-V.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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Jason Gunthorpe 2026-03-26 16:30:32 -03:00 • committed by Joerg Roedel

parent a11661a58c

commit 1c18a1212c

3 changed files with 12 additions and 5 deletions

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2

drivers/iommu/amd/iommu.c

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13

drivers/iommu/dma-iommu.c

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2

drivers/iommu/intel/iommu.c

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