diff options
| author | Aric Cyr <aric.cyr@amd.com> | 2020-10-29 17:40:51 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-11-10 14:25:20 -0500 |
| commit | e9917ef822bdfa9b881c87934f160a3e48125f00 (patch) | |
| tree | 2860bc0f344507f451b6744b903f53168e4dd693 /drivers/gpu/drm/amd/display | |
| parent | 06d55ffaeaea9badfee7376100759f1f86397e94 (diff) | |
drm/amd/display: Only wait for flip pending on immediate flips
[Why]
We want to make sure all immediate flips are completed before locking
the pipes, but not pipes that are not flip immediate as they will be
locked by the OTG
[How]
Skip non flip immediate pipes when checking for flip pending.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index d8d45d860cb7..e65ec2a20fa2 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -1165,27 +1165,28 @@ void dcn20_pipe_control_lock( temp_pipe = pipe->bottom_pipe; while (!flip_immediate && temp_pipe) { - if (temp_pipe->plane_state != NULL) - flip_immediate = temp_pipe->plane_state->flip_immediate; - temp_pipe = temp_pipe->bottom_pipe; + if (temp_pipe->plane_state != NULL) + flip_immediate = temp_pipe->plane_state->flip_immediate; + temp_pipe = temp_pipe->bottom_pipe; } if (flip_immediate && lock) { const int TIMEOUT_FOR_FLIP_PENDING = 100000; int i; - for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) { - if (!pipe->plane_res.hubp->funcs->hubp_is_flip_pending(pipe->plane_res.hubp)) - break; - udelay(1); - } - - if (pipe->bottom_pipe != NULL) { - for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) { - if (!pipe->bottom_pipe->plane_res.hubp->funcs->hubp_is_flip_pending(pipe->bottom_pipe->plane_res.hubp)) - break; - udelay(1); + temp_pipe = pipe; + while (temp_pipe) { + if (temp_pipe->plane_state && temp_pipe->plane_state->flip_immediate) { + for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) { + if (!temp_pipe->plane_res.hubp->funcs->hubp_is_flip_pending(temp_pipe->plane_res.hubp)) + break; + udelay(1); + } + + /* no reason it should take this long for immediate flips */ + ASSERT(i != TIMEOUT_FOR_FLIP_PENDING); } + temp_pipe = temp_pipe->bottom_pipe; } } |