iommu/vt-d: Add __iommu_flush_iotlb_psi()

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Add __iommu_flush_iotlb_psi() to do the psi iotlb flush with a DID input
rather than calculating it within the helper.

This is useful when flushing cache for parent domain which reuses DIDs of
its nested domains.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240208082307.15759-3-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Yi Liu 2024-02-19 19:15:53 +08:00 • committed by Joerg Roedel

parent 85ce8e1d6d

commit 0455d317f5

1 changed files with 43 additions and 35 deletions

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drivers/iommu/intel/iommu.c

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