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drm/amd/display: wait for the whole frame after global unlock

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[why]
The current code will not wait for the entire frame
 after global unlock.
This causes dsc dynamic target bpp update corruption when
there is a surface update immediately happens after this.

[how]
Wait for the entire whole frame after unlock before continuing
the rest of stream and surface update.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2019-06-11 18:18:36 -04:00 • committed by Alex Deucher
parent 7f6964c5a0
commit dd5d9348da
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
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@ -1242,6 +1242,8 @@ void dcn20_pipe_control_lock_global(
CRTC_STATE_VACTIVE);
pipe->stream_res.tg->funcs->wait_for_state(pipe->stream_res.tg,
CRTC_STATE_VBLANK);
pipe->stream_res.tg->funcs->wait_for_state(pipe->stream_res.tg,
CRTC_STATE_VACTIVE);
pipe->stream_res.tg->funcs->lock_doublebuffer_disable(
pipe->stream_res.tg);
}