drm/amd/display: stereo support

Frame sequential, top-bottom and side-by-side support.

Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 61ca1e2..8f53d7a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -422,6 +422,11 @@ static void calculate_viewport(struct pipe_ctx *pipe_ctx)
        bool sec_split = pipe_ctx->top_pipe &&
                        pipe_ctx->top_pipe->surface == pipe_ctx->surface;
 
+       if (stream->timing.timing_3d_format == TIMING_3D_FORMAT_SIDE_BY_SIDE ||
+               stream->timing.timing_3d_format == TIMING_3D_FORMAT_TOP_AND_BOTTOM) {
+               pri_split = false;
+               sec_split = false;
+       }
        /* The actual clip is an intersection between stream
         * source and surface clip
         */
@@ -532,14 +537,27 @@ static void calculate_recout(struct pipe_ctx *pipe_ctx, struct view *recout_skip
                        stream->public.dst.y + stream->public.dst.height
                                                - pipe_ctx->scl_data.recout.y;
 
-       /* Handle hsplit */
-       if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->surface == pipe_ctx->surface) {
-               pipe_ctx->scl_data.recout.width /= 2;
-               pipe_ctx->scl_data.recout.x += pipe_ctx->scl_data.recout.width;
-               /* Floor primary pipe, ceil 2ndary pipe */
-               pipe_ctx->scl_data.recout.width += pipe_ctx->scl_data.recout.width % 2;
-       } else if (pipe_ctx->bottom_pipe && pipe_ctx->bottom_pipe->surface == pipe_ctx->surface) {
-               pipe_ctx->scl_data.recout.width /= 2;
+       /* Handle h & vsplit */
+       if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->surface ==
+               pipe_ctx->surface) {
+               if (stream->public.timing.timing_3d_format ==
+                       TIMING_3D_FORMAT_TOP_AND_BOTTOM) {
+                       pipe_ctx->scl_data.recout.height /= 2;
+                       pipe_ctx->scl_data.recout.y += pipe_ctx->scl_data.recout.height;
+                       /* Floor primary pipe, ceil 2ndary pipe */
+                       pipe_ctx->scl_data.recout.height += pipe_ctx->scl_data.recout.height % 2;
+               } else {
+                       pipe_ctx->scl_data.recout.width /= 2;
+                       pipe_ctx->scl_data.recout.x += pipe_ctx->scl_data.recout.width;
+                       pipe_ctx->scl_data.recout.width += pipe_ctx->scl_data.recout.width % 2;
+               }
+       } else if (pipe_ctx->bottom_pipe &&
+                          pipe_ctx->bottom_pipe->surface == pipe_ctx->surface) {
+               if (stream->public.timing.timing_3d_format ==
+                       TIMING_3D_FORMAT_TOP_AND_BOTTOM)
+                       pipe_ctx->scl_data.recout.height /= 2;
+               else
+                       pipe_ctx->scl_data.recout.width /= 2;
        }
 
        /* Unclipped recout offset = stream dst offset + ((surf dst offset - stream src offset)