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| author | Eric Yang <Eric.Yang2@amd.com> | 2021-06-23 15:48:02 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-21 13:39:25 -0400 |
| commit | 46ddb8965882fcff2d36d84ed12629435f3879c1 (patch) | |
| tree | 9e6f4d90203d37e632c4d7d52b9a81ad04838057 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | drm/amd/display: log additional register state for debug (diff) | |
| download | linux-46ddb8965882fcff2d36d84ed12629435f3879c1.tar.gz linux-46ddb8965882fcff2d36d84ed12629435f3879c1.zip | |
drm/amd/display: implement workaround for riommu related hang
[Why]
During S4/S5/reboot, sometimes riommu invalidation request arrive too
early, DCN may be unable to respond to the invalidation request
resulting in pstate hang.
[How]
VBIOS will force allow pstate for riommu invalidation and driver will
clear it after powering down display pipes.
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions