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| author | Nicholas Kazlauskas <[email protected]> | 2020-06-29 17:03:52 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2020-07-02 16:02:56 +0000 |
| commit | 33d63b1f4d3a47f4697f86ab83b1c7221da4236e (patch) | |
| tree | be9d0f94e051ba211e110002bb9f3269e2831536 /drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | |
| parent | drm/amd/display: Create plane rotation property (diff) | |
| download | kernel-33d63b1f4d3a47f4697f86ab83b1c7221da4236e.tar.gz kernel-33d63b1f4d3a47f4697f86ab83b1c7221da4236e.zip | |
drm/amd/display: Only revalidate bandwidth on medium and fast updates
[Why]
Changes that are fast don't require updating DLG parameters making
this call unnecessary. Considering this is an expensive call it should
not be done on every flip.
DML touches clocks, p-state support, DLG params and a few other DC
internal flags and these aren't expected during fast. A hang has been
reported with this change when called on every flip which suggests that
modifying these fields is not recommended behavior on fast updates.
[How]
Guard the validation to only happen if update type isn't FAST.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1191
Fixes: a24eaa5c51255b ("drm/amd/display: Revalidate bandwidth before commiting DC updates")
Signed-off-by: Nicholas Kazlauskas <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Reviewed-by: Roman Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c')
0 files changed, 0 insertions, 0 deletions