drm/amd/display: Loosen plane_info and scaling_info checks

Make it so that differing dcc and plane size fields don't necessarily
result in a full update, along with upscaling modes. This allows us to
save some unnecessary full updates.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 5745304..4c078c2 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1169,9 +1169,7 @@ static enum surface_update_type get_plane_info_update_type(
        /* Full update parameters */
        temp_plane_info.color_space = u->surface->color_space;
        temp_plane_info.input_tf = u->surface->input_tf;
-       temp_plane_info.dcc = u->surface->dcc;
        temp_plane_info.horizontal_mirror = u->surface->horizontal_mirror;
-       temp_plane_info.plane_size = u->surface->plane_size;
        temp_plane_info.rotation = u->surface->rotation;
        temp_plane_info.stereo_format = u->surface->stereo_format;
 
@@ -1214,14 +1212,23 @@ static enum surface_update_type  get_scaling_info_update_type(
        if (!u->scaling_info)
                return UPDATE_TYPE_FAST;
 
-       if (u->scaling_info->src_rect.width != u->surface->src_rect.width
-                       || u->scaling_info->src_rect.height != u->surface->src_rect.height
-                       || u->scaling_info->clip_rect.width != u->surface->clip_rect.width
+       if (u->scaling_info->clip_rect.width != u->surface->clip_rect.width
                        || u->scaling_info->clip_rect.height != u->surface->clip_rect.height
                        || u->scaling_info->dst_rect.width != u->surface->dst_rect.width
                        || u->scaling_info->dst_rect.height != u->surface->dst_rect.height)
                return UPDATE_TYPE_FULL;
 
+       if (u->scaling_info->src_rect.width != u->surface->src_rect.width
+               || u->scaling_info->src_rect.height != u->surface->src_rect.height) {
+
+               if (u->scaling_info->src_rect.width > u->surface->src_rect.width
+                               && u->scaling_info->src_rect.height > u->surface->src_rect.height)
+                       return UPDATE_TYPE_FULL;
+
+               /* Upscaling does not require a full update */
+               return UPDATE_TYPE_MED;
+       }
+
        if (u->scaling_info->src_rect.x != u->surface->src_rect.x
                        || u->scaling_info->src_rect.y != u->surface->src_rect.y
                        || u->scaling_info->clip_rect.x != u->surface->clip_rect.x