r600g,radeonsi: add debug option which forces DMA for copy_region and blit

1 files changed, 11 insertions, 7 deletions

diff --git a/src/gallium/drivers/r600/r600_blit.c b/src/gallium/drivers/r600/r600_blit.c
index f766e37f2b2..1e18d87e6ff 100644
--- a/src/gallium/drivers/r600/r600_blit.c
+++ b/src/gallium/drivers/r600/r600_blit.c
@@ -565,13 +565,13 @@ static void r600_clear_buffer(struct pipe_context *ctx, struct pipe_resource *ds
 	}
 }
 
-static void r600_resource_copy_region(struct pipe_context *ctx,
-				      struct pipe_resource *dst,
-				      unsigned dst_level,
-				      unsigned dstx, unsigned dsty, unsigned dstz,
-				      struct pipe_resource *src,
-				      unsigned src_level,
-				      const struct pipe_box *src_box)
+void r600_resource_copy_region(struct pipe_context *ctx,
+			       struct pipe_resource *dst,
+			       unsigned dst_level,
+			       unsigned dstx, unsigned dsty, unsigned dstz,
+			       struct pipe_resource *src,
+			       unsigned src_level,
+			       const struct pipe_box *src_box)
 {
 	struct r600_context *rctx = (struct r600_context *)ctx;
 	struct pipe_surface *dst_view, dst_templ;
@@ -815,6 +815,10 @@ static void r600_blit(struct pipe_context *ctx,
 		return; /* error */
 	}
 
+	if (rctx->screen->b.debug_flags & DBG_FORCE_DMA &&
+	    util_try_blit_via_copy_region(ctx, info))
+		return;
+
 	r600_blitter_begin(ctx, R600_BLIT |
 			   (info->render_condition_enable ? 0 : R600_DISABLE_RENDER_COND));
 	util_blitter_blit(rctx->blitter, info);