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iommu/amd: Prepare for multiple DMA domain types

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The DMA ops reset/setup can simply be unconditional, since
iommu-dma already knows only to touch DMA domains.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/6450b4f39a5a086d505297b4a53ff1e4a7a0fe7c.1628682049.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Robin Murphy 2021-08-11 13:21:31 +01:00 committed by Joerg Roedel
parent bf3aed4660
commit 6d59603939
1 changed files with 2 additions and 7 deletions
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9
drivers/iommu/amd/iommu.c
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@ -1707,14 +1707,9 @@ static struct iommu_device *amd_iommu_probe_device(struct device *dev)
static void amd_iommu_probe_finalize(struct device *dev)
{
struct iommu_domain *domain;
/* Domains are initialized for this device - have a look what we ended up with */
domain = iommu_get_domain_for_dev(dev);
if (domain->type == IOMMU_DOMAIN_DMA)
iommu_setup_dma_ops(dev, 0, U64_MAX);
else
set_dma_ops(dev, NULL);
set_dma_ops(dev, NULL);
iommu_setup_dma_ops(dev, 0, U64_MAX);
}
static void amd_iommu_release_device(struct device *dev)