diff options
| 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/dcn10/dcn10_hw_sequencer.h | |
| parent | drm/amd/display: Fix assert being hit with GAMCOR memory shut down (diff) | |
| download | wireguard-linux-985faf2c4ecb606552293a5af1f0b5f99b7b1a3d.tar.xz wireguard-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/dcn10/dcn10_hw_sequencer.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h index dee8ad1ebaa4..89e6dfb63da0 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h @@ -204,5 +204,8 @@ void dcn10_wait_for_pending_cleared(struct dc *dc, struct dc_state *context); void dcn10_set_hdr_multiplier(struct pipe_ctx *pipe_ctx); void dcn10_verify_allow_pstate_change_high(struct dc *dc); +void dcn10_set_hubp_blank(const struct dc *dc, + struct pipe_ctx *pipe_ctx, + bool blank_enable); #endif /* __DC_HWSS_DCN10_H__ */ |