llvmpipe: added lp_rast_fence() bin function

1 files changed, 25 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c
index 6b7aa8d729..3e7b3d7ab4 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast.c
@@ -32,6 +32,7 @@
 
 #include "lp_bin_queue.h"
 #include "lp_debug.h"
+#include "lp_fence.h"
 #include "lp_state.h"
 #include "lp_rast.h"
 #include "lp_rast_priv.h"
@@ -506,6 +507,30 @@ lp_rast_end_tile( struct lp_rasterizer *rast,
 
 
 /**
+ * Signal on a fence.  This is called during bin execution/rasterization.
+ * Called per thread.
+ */
+void lp_rast_fence( struct lp_rasterizer *rast,
+                    unsigned thread_index,
+                    const union lp_rast_cmd_arg arg )
+{
+   struct lp_fence *fence = arg.fence;
+
+   pipe_mutex_lock( fence->mutex );
+
+   fence->count++;
+   assert(fence->count <= fence->rank);
+
+   LP_DBG(DEBUG_RAST, "%s count=%u rank=%u\n", __FUNCTION__,
+          fence->count, fence->rank);
+
+   pipe_condvar_signal( fence->signalled );
+
+   pipe_mutex_unlock( fence->mutex );
+}
+
+
+/**
  * When all the threads are done rasterizing a bin, one thread will
  * call this function to reset the bin and put it onto the empty queue.
  */