freedreno/a3xx: support for hw binning pass

The binning pass sorts vertices into which bins/tiles they apply to.
The visibility information generated during the binning pass can be
used to speed up the rendering pass by filtering out vertices which
do not apply to the current tile.  See:

 https://github.com/freedreno/freedreno/wiki/Adreno-tiling#optimized-approach

This brings a significant fps boost.  A rough assortment of tests
(supertuxkart, etracer, tremulous, glmark2 'build' test, etc) seems
to yield a ~35-45% fps improvement.

For now, to be conservative, the binning pass is not enabled yet by
default.  To enable it use:

  FD_MESA_DEBUG=binning

So far I haven't found anything that breaks with binning enabled,
but I'd like a bit more testing before I enable it as default.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gallium/drivers/freedreno/a3xx/fd3_program.h b/src/gallium/drivers/freedreno/a3xx/fd3_program.h
index 85c22a54cf7..bd6483ff42c 100644
--- a/src/gallium/drivers/freedreno/a3xx/fd3_program.h
+++ b/src/gallium/drivers/freedreno/a3xx/fd3_program.h
@@ -117,7 +117,7 @@ struct fd3_shader_stateobj {
 };
 
 void fd3_program_emit(struct fd_ringbuffer *ring,
-		struct fd_program_stateobj *prog);
+		struct fd_program_stateobj *prog, bool binning);
 
 void fd3_prog_init(struct pipe_context *pctx);
 void fd3_prog_fini(struct pipe_context *pctx);