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| author | Rob Clark <robdclark@chromium.org> | 2020-11-09 11:47:26 -0700 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-11-10 12:25:49 +0000 |
| commit | bffb2eaf0ba2c0bdd7fc2c4e194dab6783f5d8c1 (patch) | |
| tree | 1d43cb88cc0f25f8f946b05ec44e4ee226f7dbab /usr | |
| parent | 5c7469c66f953a2eb223468d7aa40062af9c14ab (diff) | |
| download | linux-stable-bffb2eaf0ba2c0bdd7fc2c4e194dab6783f5d8c1.tar.gz linux-stable-bffb2eaf0ba2c0bdd7fc2c4e194dab6783f5d8c1.tar.bz2 linux-stable-bffb2eaf0ba2c0bdd7fc2c4e194dab6783f5d8c1.zip | |
iommu/arm-smmu: Add a way for implementations to influence SCTLR
For the Adreno GPU's SMMU, we want SCTLR.HUPCF set to ensure that
pending translations are not terminated on iova fault. Otherwise
a terminated CP read could hang the GPU by returning invalid
command-stream data. Add a hook to for the implementation to modify
the sctlr value if it wishes.
Co-developed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Link: https://lore.kernel.org/r/20201109184728.2463097-3-jcrouse@codeaurora.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions