From bb2746ac9143fe57adab57c30d19718dbaed7901 Mon Sep 17 00:00:00 2001 From: Aric Cyr Date: Tue, 3 Sep 2019 18:18:08 -0400 Subject: drm/amd/display: Improve LFC behaviour [Why] There can be some unsynchronized frames when entering/exiting LFC. This may cause tearing or stuttering at such transitions. [How] Add a enter/exit margin to algorithm to smoothly transition into and out of LFC without desynchronizing frames. Signed-off-by: Aric Cyr Reviewed-by: Reza Amini Acked-by: Leo Li Acked-by: Sivapiriyan Kumarasamy Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h') diff --git a/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h b/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h index dc187844d10b..dbe7835aabcf 100644 --- a/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h +++ b/drivers/gpu/drm/amd/display/modules/inc/mod_freesync.h @@ -92,6 +92,7 @@ struct mod_vrr_params_btr { uint32_t inserted_duration_in_us; uint32_t frames_to_insert; uint32_t frame_counter; + uint32_t margin_in_us; }; struct mod_vrr_params_fixed_refresh { -- cgit