From: Anthony Wang <anthony1.w...@amd.com>

[Why]
Underflow observed when disabling PIP overlay in-game when
vsync is disabled, due to OTC master lock not working with
game pipe which is immediate flip.

[How]
When performing a full update, override flip_immediate value
to false for all planes, so that flip occurs on vsync.

Signed-off-by: Anthony Wang <anthony1.w...@amd.com>
Acked-by: Bindu Ramamurthy <bindu...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c 
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index e74027a9354e..497e44ca98c1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2683,6 +2683,10 @@ static void commit_planes_for_stream(struct dc *dc,
                                                plane_state->triplebuffer_flips 
= true;
                                }
                        }
+                       if (update_type == UPDATE_TYPE_FULL) {
+                               /* force vsync flip when reconfiguring pipes to 
prevent underflow */
+                               plane_state->flip_immediate = false;
+                       }
                }
        }
 
-- 
2.25.1

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