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| author | Gabe Teeger <[email protected]> | 2022-03-14 16:07:14 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2022-03-25 16:40:25 +0000 |
| commit | e5fc78252ccd8dfc260f87d83905e9dffff6d975 (patch) | |
| tree | a84bf29d9e45605c06f2654db54a60382987ce09 /drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | |
| parent | drm/amdgpu/vcn: Fix the register setting for vcn1 (diff) | |
| download | kernel-e5fc78252ccd8dfc260f87d83905e9dffff6d975.tar.gz kernel-e5fc78252ccd8dfc260f87d83905e9dffff6d975.zip | |
drm/amd/display: Add support for zstate during extended vblank
[why]
When we enter FREESYNC_STATE_VIDEO, we want to use the extra vblank
portion to enter zstate if possible.
[how]
When we enter freesync, a full update is triggered and the new vtotal
with extra lines is passed to dml in a stream update. The time gained
from extra vblank lines is calculated in microseconds. We allow zstate
entry if the time gained is greater than 5 ms, which is the current
policy. Furthermore, an optimized value for min_dst_y_next_start is
calculated and written to its register. When exiting freesync, another
full update is triggered and default values are restored.
Reviewed-by: Nicholas Kazlauskas <[email protected]>
Acked-by: Alex Hung <[email protected]>
Signed-off-by: Gabe Teeger <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c')
0 files changed, 0 insertions, 0 deletions