From 4ed4c1d9210b11ce6faea81455c21531904ea45b Mon Sep 17 00:00:00 2001 From: Vinson Lee Date: Wed, 10 Feb 2016 16:42:19 -0800 Subject: [PATCH] llvmpipe: Do not use barriers if not using threads. Cc: mesa-stable@lists.freedesktop.org Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94088 Signed-off-by: Vinson Lee Reviewed-by: Roland Scheidegger --- src/gallium/drivers/llvmpipe/lp_rast.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c index d22e507..9e56c96 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast.c +++ b/src/gallium/drivers/llvmpipe/lp_rast.c @@ -910,7 +910,9 @@ lp_rast_create( unsigned num_threads ) create_rast_threads(rast); /* for synchronizing rasterization threads */ - pipe_barrier_init( &rast->barrier, rast->num_threads ); + if (rast->num_threads > 0) { + pipe_barrier_init( &rast->barrier, rast->num_threads ); + } memset(lp_dummy_tile, 0, sizeof lp_dummy_tile); @@ -967,7 +969,9 @@ void lp_rast_destroy( struct lp_rasterizer *rast ) } /* for synchronizing rasterization threads */ - pipe_barrier_destroy( &rast->barrier ); + if (rast->num_threads > 0) { + pipe_barrier_destroy( &rast->barrier ); + } lp_scene_queue_destroy(rast->full_scenes); -- 2.5.0