From: Andrey Grodzovsky <Andrey.Grodzovsky@xxxxxxx> Problem : A race between two adjecent page flips makes the earlier one to release an alocated frame buffer for the subsequent one - since there are 2 frambuffer swapped back and forth between flips, the 'new' fb of the later flip is actually the 'previous' fb for the earlier flip. Fix: Don't set fb->address = 0 in cleanup hook, this is unnecessery and erases the newly cached adress that was set in prepare_fb of the second flip. Change-Id: I852ad2ee5122222e49dfc9c05e7488843d6a8915 Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky at amd.com> Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky at amd.com> Acked-by: Harry Wentland <Harry.Wentland at amd.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c index 6fddf31cc4e4..8aeb10786b94 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c @@ -1795,9 +1795,7 @@ static void dm_plane_helper_cleanup_fb( amdgpu_bo_unpin(rbo); amdgpu_bo_unreserve(rbo); amdgpu_bo_unref(&rbo); - } - - afb->address = 0; + }; } int dm_create_validation_set_for_connector(struct drm_connector *connector, -- 2.11.0
