Remove fences from the i915simple winsys interface.

Fences will be part of the pipe winsys interface, so remove this to avoid
merge conflicts later on.

This reverts commit ca7f68a7cf25a51f382bba8c42d8c6ab7db57b5d.
This reverts commit dec60d33b2570cf2bdce72a00a1539ee93133f91.
This reverts commit 90dd0cb822f2fe14258c786e5c37da69472b7d17.

5 files changed, 8 insertions, 35 deletions

diff --git a/src/mesa/pipe/i915simple/i915_batch.h b/src/mesa/pipe/i915simple/i915_batch.h
index 603d193f626..fb88cd6db0d 100644
--- a/src/mesa/pipe/i915simple/i915_batch.h
+++ b/src/mesa/pipe/i915simple/i915_batch.h
@@ -44,11 +44,11 @@
 
 #define ADVANCE_BATCH()
 
-#define FLUSH_BATCH() do { 						\
-   if (0) i915_dump_batchbuffer( i915 );				\
-   i915->winsys->batch_flush( i915->winsys, &i915->last_fence );	\
-   i915->batch_start = NULL;						\
-   i915->hardware_dirty = ~0;						\
+#define FLUSH_BATCH() do { 				\
+   if (0) i915_dump_batchbuffer( i915 );		\
+   i915->winsys->batch_flush( i915->winsys );		\
+   i915->batch_start = NULL;				\
+   i915->hardware_dirty = ~0;				\
 } while (0)
 
 #endif 
diff --git a/src/mesa/pipe/i915simple/i915_context.c b/src/mesa/pipe/i915simple/i915_context.c
index f5d770ce0df..e43274dc667 100644
--- a/src/mesa/pipe/i915simple/i915_context.c
+++ b/src/mesa/pipe/i915simple/i915_context.c
@@ -175,8 +175,6 @@ static void i915_destroy( struct pipe_context *pipe )
 
    draw_destroy( i915->draw );
 
-   i915->winsys->fence_reference( i915->winsys, &i915->last_fence, NULL );
-   
    free( i915 );
 }
 
diff --git a/src/mesa/pipe/i915simple/i915_context.h b/src/mesa/pipe/i915simple/i915_context.h
index 488682f852e..ee430ebc902 100644
--- a/src/mesa/pipe/i915simple/i915_context.h
+++ b/src/mesa/pipe/i915simple/i915_context.h
@@ -80,7 +80,6 @@
 
 
 
-struct pipe_fence;
 struct i915_cache_context;
 
 /* Use to calculate differences between state emitted to hardware and
@@ -185,8 +184,6 @@ struct i915_context
    unsigned dirty;
 
    unsigned *batch_start;
-   
-   struct pipe_fence *last_fence;
 
    /** Vertex buffer */
    struct pipe_buffer_handle *vbo;
diff --git a/src/mesa/pipe/i915simple/i915_flush.c b/src/mesa/pipe/i915simple/i915_flush.c
index 1044cb1bdbd..3c2069b8273 100644
--- a/src/mesa/pipe/i915simple/i915_flush.c
+++ b/src/mesa/pipe/i915simple/i915_flush.c
@@ -69,8 +69,7 @@ static void i915_flush( struct pipe_context *pipe,
    FLUSH_BATCH();
 
    if (flags & PIPE_FLUSH_WAIT) {
-      if( i915->last_fence )
-	 i915->winsys->fence_wait(i915->winsys, i915->last_fence);
+      i915->winsys->batch_finish(i915->winsys);
    }
 }
 
diff --git a/src/mesa/pipe/i915simple/i915_winsys.h b/src/mesa/pipe/i915simple/i915_winsys.h
index 386ed745d37..2c0f335d346 100644
--- a/src/mesa/pipe/i915simple/i915_winsys.h
+++ b/src/mesa/pipe/i915simple/i915_winsys.h
@@ -52,7 +52,6 @@
 
 struct pipe_buffer_handle;
 struct pipe_winsys;
-struct pipe_fence;
 
 
 /**
@@ -98,28 +97,8 @@ struct i915_winsys {
 			unsigned access_flags,
 			unsigned delta );
    
-   /**
-    * Flush the batch buffer.
-    * 
-    * Fence argument must point to NULL or to a previous fence, and the caller 
-    * must call fence_reference when done with the fence.
-    */
-   void (*batch_flush)( struct i915_winsys *sws,
-                        struct pipe_fence **fence );
-
-
-   /* Fence 
-    */
-   void (*fence_reference)( struct i915_winsys *sws, 
-                            struct pipe_fence **dst_fence,
-                            struct pipe_fence *src_fence );
-
-   int (*fence_is_signalled)( struct i915_winsys *sws,
-                              struct pipe_fence *fence );
-   
-   int (*fence_wait)( struct i915_winsys *sws,
-                      struct pipe_fence *fence );
-
+   void (*batch_flush)( struct i915_winsys *sws );
+   void (*batch_finish)( struct i915_winsys *sws );
 };
 
 #define I915_BUFFER_ACCESS_WRITE   0x1