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drm/amd/display: add pipe lock during stream update

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[why]
Stream update will adjust both info packets and stream params,
need to make sure all things are applied togather.

[how]
add pipe lock during stream 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 2019-02-20 14:00:55 -05:00 committed by Alex Deucher
parent 3af91bb150
commit e6bddf6c67
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -1672,6 +1672,7 @@ static void commit_planes_do_stream_update(struct dc *dc,
continue;
if (stream_update->dpms_off) {
dc->hwss.pipe_control_lock(dc, pipe_ctx, true);
if (*stream_update->dpms_off) {
core_link_disable_stream(pipe_ctx, KEEP_ACQUIRED_RESOURCE);
dc->hwss.optimize_bandwidth(dc, dc->current_state);
@ -1679,6 +1680,7 @@ static void commit_planes_do_stream_update(struct dc *dc,
dc->hwss.prepare_bandwidth(dc, dc->current_state);
core_link_enable_stream(dc->current_state, pipe_ctx);
}
dc->hwss.pipe_control_lock(dc, pipe_ctx, false);
}
if (stream_update->abm_level && pipe_ctx->stream_res.abm) {