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| author | Wesley Chalmers <[email protected]> | 2020-12-07 11:53:46 -0500 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-01-13 23:44:22 -0500 |
| commit | 985faf2c4ecb606552293a5af1f0b5f99b7b1a3d (patch) | |
| tree | c1154cba67a3e0e24a9d5b87e6f75b7f6d4789d1 /tools/perf/scripts/python | |
| parent | 36ec5b16619e65aea5b35c028369381494838a89 (diff) | |
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 <[email protected]>
Signed-off-by: Wesley Chalmers <[email protected]>
Reviewed-by: Jun Lei <[email protected]>
Acked-by: Rodrigo Siqueira <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions