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| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-09-13 15:43:35 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-09-25 11:40:52 +0200 |
| commit | 1c68cbc64fe6ac01dc242ba562344303031a76fb (patch) | |
| tree | 87579f79b71ba87fe65ce42bb03c6bf29669eea9 /arch/powerpc/kernel/iommu.c | |
| parent | iommu: Add iommu_ops->identity_domain (diff) | |
| download | linux-1c68cbc64fe6ac01dc242ba562344303031a76fb.tar.xz linux-1c68cbc64fe6ac01dc242ba562344303031a76fb.zip | |
iommu: Add IOMMU_DOMAIN_PLATFORM
This is used when the iommu driver is taking control of the dma_ops,
currently only on S390 and power spapr. It is designed to preserve the
original ops->detach_dev() semantic that these S390 was built around.
Provide an opaque domain type and a 'default_domain' ops value that allows
the driver to trivially force any single domain as the default domain.
Update iommufd selftest to use this instead of set_platform_dma_ops
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v8-81230027b2fa+9d-iommu_all_defdom_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'arch/powerpc/kernel/iommu.c')
0 files changed, 0 insertions, 0 deletions