i965/blorp: Add more destination flushing

Right now we just always flush the destination for render and aren't
particularly careful about depth or stencil.  Soon, flush_for_render
isn't going to do the same thing as flush_for_depth and we may be doing
a good deal less depth flushing so we should be a bit more precise.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/genX_blorp_exec.c b/src/mesa/drivers/dri/i965/genX_blorp_exec.c
index 2616f75..8411753 100644 (file)
--- a/src/mesa/drivers/dri/i965/genX_blorp_exec.c
+++ b/src/mesa/drivers/dri/i965/genX_blorp_exec.c
@@ -226,7 +226,12 @@ genX(blorp_exec)(struct blorp_batch *batch,
     */
    if (params->src.enabled)
       brw_cache_flush_for_read(brw, params->src.addr.buffer);
-   brw_cache_flush_for_render(brw, params->dst.addr.buffer);
+   if (params->dst.enabled)
+      brw_cache_flush_for_render(brw, params->dst.addr.buffer);
+   if (params->depth.enabled)
+      brw_cache_flush_for_depth(brw, params->depth.addr.buffer);
+   if (params->stencil.enabled)
+      brw_cache_flush_for_depth(brw, params->stencil.addr.buffer);
    brw_render_cache_set_check_flush(brw, params->dst.addr.buffer);
 
    brw_select_pipeline(brw, BRW_RENDER_PIPELINE);