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| author | Gabe Teeger <gabe.teeger@amd.com> | 2022-03-14 19:07:14 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-25 19:40:25 +0300 |
| commit | e5fc78252ccd8dfc260f87d83905e9dffff6d975 (patch) | |
| tree | a84bf29d9e45605c06f2654db54a60382987ce09 /drivers/gpu/drm/amd/display/dc/dc_stream.h | |
| parent | 02fc996d5098f4c3f65bdf6cdb6b28e3f29ba789 (diff) | |
| download | linux-e5fc78252ccd8dfc260f87d83905e9dffff6d975.tar.xz | |
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 <Nicholas.Kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_stream.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_stream.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index 99a750f561f8..c4168c11257c 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -131,6 +131,7 @@ union stream_update_flags { uint32_t wb_update:1; uint32_t dsc_changed : 1; uint32_t mst_bw : 1; + uint32_t crtc_timing_adjust : 1; } bits; uint32_t raw; @@ -289,6 +290,7 @@ struct dc_stream_update { struct dc_3dlut *lut3d_func; struct test_pattern *pending_test_pattern; + struct dc_crtc_timing_adjust *crtc_timing_adjust; }; bool dc_is_stream_unchanged( |