diff options
| author | Rob Clark <robdclark@chromium.org> | 2022-05-02 10:29:08 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2022-05-07 09:56:42 -0700 |
| commit | 4a257ca694015f8c10aeb27bc4b32282d136b7d0 (patch) | |
| tree | ff5741087e29a410444142b2ba0d0c75687c6dfa /drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | |
| parent | b9b19980a14fc3c37cd3936ef84a5a47aa891965 (diff) | |
drm/msm: Limit command submission when no IOMMU
Running the GPU without an IOMMU is not really a supported (or sane)
configuration. Yet it can be useful during SoC bringup (ie. if the
iommu driver doesn't work yet).
Lets limit it to users who already have /dev/mem access, to avoid the
chance that a user accidentially configures kernel without IOMMU
support.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220502172908.3569799-1-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c')
0 files changed, 0 insertions, 0 deletions