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| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-10-03 13:52:36 -0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-10-05 12:58:56 +0200 |
| commit | 0f6a90436a5771fc9f6ca0d1e64f7549219e6c3c (patch) | |
| tree | 817d4de9650217a5c0a2a9792fa728b199eb2d04 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | ccb76c5751634541bfd2222374f46e1dea83d525 (diff) | |
iommu: Do not use IOMMU_DOMAIN_DMA if CONFIG_IOMMU_DMA is not enabled
msm_iommu platforms do not select either CONFIG_IOMMU_DMA or
CONFIG_ARM_DMA_USE_IOMMU so they create a IOMMU_DOMAIN_DMA domain by
default and never populate it. This acts like a BLOCKED domain and breaks
the GPU driver on the platform.
Detect this and force use of IDENTITY instead.
Fixes: 98ac73f99bc4 ("iommu: Require a default_domain for all iommu drivers")
Reported-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/linux-iommu/CAA8EJprz7VVmBG68U9zLuqPd0UdSRHYoLDJSP6tCj6H6qanuTQ@mail.gmail.com/
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/0-v1-20700abdf239+19c-iommu_no_dma_iommu_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions