util: move pipe_barrier into src/util and rename to util_barrier

The #if guard is probably not 100% equivalent to the previous PIPE_OS
check, but if anything it should be an over-approximation (are there
pthread implementations without barriers?), so people will get either
a good implementation or compile errors that are easy to fix.

Reviewed-by: Marek Olšák <[email protected]>

2 files changed, 7 insertions, 6 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c
index 0050655d9e3..9e2780ca1d7 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast.c
@@ -32,6 +32,7 @@
 #include "util/u_surface.h"
 #include "util/u_pack_color.h"
 #include "util/u_string.h"
+#include "util/u_thread.h"
 
 #include "os/os_time.h"
 
@@ -822,7 +823,7 @@ thread_function(void *init_data)
       /* Wait for all threads to get here so that threads[1+] don't
        * get a null rast->curr_scene pointer.
        */
-      pipe_barrier_wait( &rast->barrier );
+      util_barrier_wait( &rast->barrier );
 
       /* do work */
       if (debug)
@@ -832,7 +833,7 @@ thread_function(void *init_data)
                       rast->curr_scene);
       
       /* wait for all threads to finish with this scene */
-      pipe_barrier_wait( &rast->barrier );
+      util_barrier_wait( &rast->barrier );
 
       /* XXX: shouldn't be necessary:
        */
@@ -914,7 +915,7 @@ lp_rast_create( unsigned num_threads )
 
    /* for synchronizing rasterization threads */
    if (rast->num_threads > 0) {
-      pipe_barrier_init( &rast->barrier, rast->num_threads );
+      util_barrier_init( &rast->barrier, rast->num_threads );
    }
 
    memset(lp_dummy_tile, 0, sizeof lp_dummy_tile);
@@ -973,7 +974,7 @@ void lp_rast_destroy( struct lp_rasterizer *rast )
 
    /* for synchronizing rasterization threads */
    if (rast->num_threads > 0) {
-      pipe_barrier_destroy( &rast->barrier );
+      util_barrier_destroy( &rast->barrier );
    }
 
    lp_scene_queue_destroy(rast->full_scenes);
diff --git a/src/gallium/drivers/llvmpipe/lp_rast_priv.h b/src/gallium/drivers/llvmpipe/lp_rast_priv.h
index 3cc52b8d4fd..fe078d5b869 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast_priv.h
+++ b/src/gallium/drivers/llvmpipe/lp_rast_priv.h
@@ -28,8 +28,8 @@
 #ifndef LP_RAST_PRIV_H
 #define LP_RAST_PRIV_H
 
-#include "os/os_thread.h"
 #include "util/u_format.h"
+#include "util/u_thread.h"
 #include "gallivm/lp_bld_debug.h"
 #include "lp_memory.h"
 #include "lp_rast.h"
@@ -130,7 +130,7 @@ struct lp_rasterizer
    thrd_t threads[LP_MAX_THREADS];
 
    /** For synchronizing the rasterization threads */
-   pipe_barrier barrier;
+   util_barrier barrier;
 };