iommupt: Use the incoherent start/stop functions for PT_FEAT_DMA_INCOHERENT

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This is the first step to supporting an incoherent walker, start and stop
the incoherence around the allocation and frees of the page table memory.

The iommu_pages API maps this to dma_map/unmap_single(), or arch cache
flushing calls.

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

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Jason Gunthorpe 2025-10-23 15:22:31 -03:00 • committed by Joerg Roedel

parent bcc64b57b4

commit aefd967dab

5 changed files with 88 additions and 20 deletions

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89

drivers/iommu/generic_pt/iommu_pt.h

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1

drivers/iommu/generic_pt/kunit_iommu.h

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5

drivers/iommu/generic_pt/pt_defs.h

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6

include/linux/generic_pt/common.h

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7

include/linux/generic_pt/iommu.h

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