Commit 6c475bdb authored by Jake Wang's avatar Jake Wang Committed by Alex Deucher
Browse files

drm/amd/display: Trigger full update after DCC on/off 



[Why]
During DCC on/off, stutter period is calculated before DCC has fully transitioned.
This results in incorrect stutter period calculation.

[How]
Trigger a full update when DCC changes between on/off.

Signed-off-by: default avatarJake Wang <haonan.wang2@amd.com>
Reviewed-by: default avatarAric Cyr <Aric.Cyr@amd.com>
Acked-by: default avatarStylon Wang <stylon.wang@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e1944deb

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

+6 −1
Original line number Diff line number Diff line
@@ -1927,8 +1927,13 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa 
	if (u->plane_info->dcc.enable != u->surface->dcc.enable

			|| u->plane_info->dcc.independent_64b_blks != u->surface->dcc.independent_64b_blks

			|| u->plane_info->dcc.meta_pitch != u->surface->dcc.meta_pitch) {

		/* During DCC on/off, stutter period is calculated before

		 * DCC has fully transitioned. This results in incorrect

		 * stutter period calculation. Triggering a full update will

		 * recalculate stutter period.

		 */

		update_flags->bits.dcc_change = 1;

		elevate_update_type(&update_type, UPDATE_TYPE_MED);

		elevate_update_type(&update_type, UPDATE_TYPE_FULL);

	}



	if (resource_pixel_format_to_bpp(u->plane_info->format) !=