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| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2021-12-17 09:55:54 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-15 14:33:57 -0400 |
| commit | e7031d8258f1b4d6d50e5e5b5d92ba16f66eb8b4 (patch) | |
| tree | 920301e5e60733424b6a46436943b49c54153f47 /drivers/gpu/drm/amd/display/dc/dcn301 | |
| parent | 65722ff6181aa52c3d5b0929004af22a3a63e148 (diff) | |
| download | lwn-e7031d8258f1b4d6d50e5e5b5d92ba16f66eb8b4.tar.gz lwn-e7031d8258f1b4d6d50e5e5b5d92ba16f66eb8b4.zip | |
drm/amd/display: Add pstate verification and recovery for DCN31
[Why]
To debug when p-state is being blocked and avoid PMFW hangs when
it does occur.
[How]
Re-use the DCN10 hardware sequencer by adding a new interface for
verifying p-state high on the hubbub. The interface is mostly the
same as the DCN10 interface, but the bit definitions have changed for
the debug bus.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn301')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn301/dcn301_hubbub.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_hubbub.c index 1e3bd2e9cdcc..a046664e2031 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_hubbub.c @@ -60,6 +60,7 @@ static const struct hubbub_funcs hubbub301_funcs = { .program_watermarks = hubbub3_program_watermarks, .allow_self_refresh_control = hubbub1_allow_self_refresh_control, .is_allow_self_refresh_enabled = hubbub1_is_allow_self_refresh_enabled, + .verify_allow_pstate_change_high = hubbub1_verify_allow_pstate_change_high, .force_wm_propagate_to_pipes = hubbub3_force_wm_propagate_to_pipes, .force_pstate_change_control = hubbub3_force_pstate_change_control, .hubbub_read_state = hubbub2_read_state, |