Commit 56d63782 authored Mar 31, 2021 by Anthony Wang Committed by Alex Deucher Apr 15, 2021

drm/amd/display: Force vsync flip when reconfiguring MPCC



[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.wang@amd.com>
Acked-by: Bindu Ramamurthy <bindur12@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent fab85801

drivers/gpu/drm/amd/display/dc/core/dc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}
		}
		}