Files
linux/drivers/gpu/drm
Nicholas Kazlauskas 2276ee6d1b drm/amd/display: Reset link encoder assignments for GPU reset
[Why]
A warning appears in the log on GPU reset for
link_enc_cfg_link_encs_assign for the following condition:

ASSERT(state->res_ctx.link_enc_cfg_ctx.link_enc_assignments[i].valid == false);

This is not expected behavior and may result in link encoders being
incorrectly assigned.

[How]
The dc->current_state is backed up into dm->cached_dc_state before
we commit 0 streams.

DC will clear link encoder assignments on the real state but the
changes won't propagate over to the copy we made before the
0 streams commit.

DC expects that link encoder assignments are *not* valid
when committing a state, so as a workaround it needs to be cleared
before passing it back into DC.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-11-24 15:06:21 -05:00
..
2021-10-04 12:06:14 +02:00
2021-08-10 20:14:01 +02:00
2021-11-05 11:15:14 +01:00
2021-08-12 21:41:10 +02:00
2021-08-10 20:14:01 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-10-28 17:20:45 +10:00
2021-08-02 10:19:43 +02:00
2021-08-28 19:00:20 +02:00
2021-08-10 20:14:01 +02:00
2021-10-01 15:55:47 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-19 09:02:55 +09:00
2021-08-02 10:19:43 +02:00
2021-08-02 10:19:43 +02:00
2021-08-10 20:14:01 +02:00
2021-08-02 10:19:43 +02:00