From: David Francis Date: Thu, 3 Jan 2019 19:38:06 +0000 (-0500) Subject: drm/amd/display: Let updates with no scaling changes be fast X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4ef9f1ec837be562b42a1c0f196c4ef371b2ed84;p=linux.git drm/amd/display: Let updates with no scaling changes be fast [Why] DC was assuming that any surface_update->scaling_info meant the update was at least medium. However, if nothing has changed there is no scaling to program, so there is no problem with the update being fast [How] If every update flag is not set, the update is fast Signed-off-by: David Francis Reviewed-by: Harry Wentland Acked-by: Leo Li Acked-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 56702840710b5..1dabafc12cfe2 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1240,7 +1240,7 @@ static enum surface_update_type get_plane_info_update_type(const struct dc_surfa || update_flags->bits.output_tf_change) return UPDATE_TYPE_FULL; - return UPDATE_TYPE_MED; + return update_flags->raw ? UPDATE_TYPE_MED : UPDATE_TYPE_FAST; } static enum surface_update_type get_scaling_info_update_type(