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| author | Wesley Chalmers <Wesley.Chalmers@amd.com> | 2020-12-07 11:53:46 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-13 23:44:22 -0500 |
| commit | 985faf2c4ecb606552293a5af1f0b5f99b7b1a3d (patch) | |
| tree | c1154cba67a3e0e24a9d5b87e6f75b7f6d4789d1 /drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h | |
| parent | 36ec5b16619e65aea5b35c028369381494838a89 (diff) | |
| download | linux-985faf2c4ecb606552293a5af1f0b5f99b7b1a3d.tar.gz linux-985faf2c4ecb606552293a5af1f0b5f99b7b1a3d.tar.bz2 linux-985faf2c4ecb606552293a5af1f0b5f99b7b1a3d.zip | |
drm/amd/display: New sequence for HUBP blank
[WHY]
DCN30 has a bug where blanking HUBP blocks pstate allow unless
HUBP_DISABLE is toggled afterwards.
[HOW]
Create a HW sequence for blanking HUBP.
1. Wait for enter VBLANK
2. Set HUBP_BLANK
3. Make sure HUBP_IN_BLANK = 1
4. Toggle HUBP_DISABLE on and off to perform soft reset
All existing calls to hubp->funcs->set_blank should be replaced with
this new sequence.
In wait_for_mpcc_disconnect, only blank the pipe being disconnected, and
leave all other pipes unmodified.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h index 7a19ff5d4214..48378beb71c0 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h @@ -230,6 +230,10 @@ struct hw_sequencer_funcs { enum dc_color_depth color_depth, const struct tg_color *solid_color, int width, int height, int offset); + + void (*set_hubp_blank)(const struct dc *dc, + struct pipe_ctx *pipe_ctx, + bool blank_enable); }; void color_space_to_black_color( |