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| author | Lang Yu <lang.yu@amd.com> | 2021-12-09 15:10:32 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-13 16:33:16 -0500 |
| commit | 34f3a4a98bd388ad6298c42dc9b00c72d3398330 (patch) | |
| tree | f690ee30a63e7e3a94e4c8bce3dcfdd8c79bb3df /drivers/gpu/drm/amd/pm/inc | |
| parent | cace4bff750ff4f55b16c3aa90aa9376d7488929 (diff) | |
| download | linux-34f3a4a98bd388ad6298c42dc9b00c72d3398330.tar.bz2 | |
drm/amdgpu: introduce a kind of halt state for amdgpu device
It is useful to maintain error context when debugging
SW/FW issues. Introduce amdgpu_device_halt() for this
purpose. It will bring hardware to a kind of halt state,
so that no one can touch it any more.
Compare to a simple hang, the system will keep stable
at least for SSH access. Then it should be trivial to
inspect the hardware state and see what's going on.
v2:
- Set adev->no_hw_access earlier to avoid potential crashes.(Christian)
Suggested-by: Christian Koenig <christian.koenig@amd.com>
Suggested-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.co>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/inc')
0 files changed, 0 insertions, 0 deletions