iommu/amd: Do not Invalidate IRT when IRTE caching is disabled

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With the Interrupt Remapping Table cache disabled, there is no need to
issue invalidate IRT and wait for its completion. Therefore, add logic
to bypass the operation.

Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Suggested-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20230530141137.14376-5-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Suravee Suthikulpanit 2023-05-30 10:11:36 -04:00 • committed by Joerg Roedel

parent 66419036f6

commit 98aeb4ea55

1 changed files with 15 additions and 6 deletions

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drivers/iommu/amd/iommu.c

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