diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2022-03-18 18:10:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-20 10:34:03 +0300 |
| commit | 8e663865f5284124196bc04e010e7344d8a278f3 (patch) | |
| tree | fd84d417e6b2fb3eb66f2bce8a42d2ae60d628fa /drivers/gpu | |
| parent | 685a19fa6ae99dc7a18a9af2a7626162e1db7aff (diff) | |
| download | linux-8e663865f5284124196bc04e010e7344d8a278f3.tar.xz | |
drm/amd/display: Fix p-state allow debug index on dcn31
commit 3107e1a7ae088ee94323fe9ab05dbefd65b3077f upstream.
[Why]
It changed since dcn30 but the hubbub31 constructor hasn't been
modified to reflect this.
[How]
Update the value in the constructor to 0x6 so we're checking the right
bits for p-state allow.
It worked before by accident, but can falsely assert 0 depending on HW
state transitions. The most frequent of which appears to be when
all pipes turn off during IGT tests.
Cc: Harry Wentland <harry.wentland@amd.com>
Fixes: e7031d8258f1b4 ("drm/amd/display: Add pstate verification and recovery for DCN31")
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c index f8bc2a5f5bae..208d2dc8b1d1 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c @@ -1043,5 +1043,7 @@ void hubbub31_construct(struct dcn20_hubbub *hubbub31, hubbub31->detile_buf_size = det_size_kb * 1024; hubbub31->pixel_chunk_size = pixel_chunk_size_kb * 1024; hubbub31->crb_size_segs = config_return_buffer_size_kb / DCN31_CRB_SEGMENT_SIZE_KB; + + hubbub31->debug_test_index_pstate = 0x6; } |