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From 703e452cf5b938813f55edc78a2c446f918333ac Mon Sep 17 00:00:00 2001
From: Wenjing Liu <Wenjing.Liu@amd.com>
Date: Wed, 20 Feb 2019 14:00:55 -0500
Subject: [PATCH 1589/2940] drm/amd/display: add pipe lock during stream update
[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>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 20b0f03151d1..19aea68c9d67 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1681,6 +1681,7 @@ 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);
@@ -1688,6 +1689,7 @@ 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) {
--
2.17.1
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