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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: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jake Wang 2021-05-14 15:41:39 -04:00 committed by Alex Deucher
parent e1944deba1
commit 6c475bdbec
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/amd/display/dc/core/dc.c
View File

@ -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) !=