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.

9 files changed, 31 insertions, 105 deletions

diff --git a/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.c b/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.c
index ed223977e2..49e04d81ec 100644
--- a/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.c
@@ -307,6 +307,20 @@ intel_batchbuffer_flush(struct intel_batchbuffer *batch)
 }
 
 
+void
+intel_batchbuffer_finish(struct intel_batchbuffer *batch)
+{
+   struct _DriFenceObject *fence = intel_batchbuffer_flush(batch);
+   if (fence) {
+      driFenceReference(fence);
+      driFenceFinish(fence,
+                     DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW,
+                     GL_FALSE);
+      driFenceUnReference(fence);
+   }
+}
+
+
 /*  This is the only way buffers get added to the validate list.
  */
 boolean
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.h b/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.h
index 2c943e68e5..82feafa21f 100644
--- a/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.h
+++ b/src/mesa/drivers/dri/intel_winsys/intel_batchbuffer.h
@@ -72,6 +72,8 @@ struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_context *intel);
 void intel_batchbuffer_free(struct intel_batchbuffer *batch);
 
 
+void intel_batchbuffer_finish(struct intel_batchbuffer *batch);
+
 struct _DriFenceObject *intel_batchbuffer_flush(struct intel_batchbuffer
                                                 *batch);
 
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_winsys.h b/src/mesa/drivers/dri/intel_winsys/intel_winsys.h
index f944cd23c3..89e63e0a79 100644
--- a/src/mesa/drivers/dri/intel_winsys/intel_winsys.h
+++ b/src/mesa/drivers/dri/intel_winsys/intel_winsys.h
@@ -32,9 +32,7 @@ struct intel_context;
 struct pipe_context;
 struct pipe_winsys;
 struct pipe_buffer_handle;
-struct pipe_fence;
 struct _DriBufferObject;
-struct _DriFenceObject;
 
 struct pipe_winsys *
 intel_create_pipe_winsys( int fd );
@@ -68,20 +66,5 @@ pipe_bo( struct _DriBufferObject *bo )
 }
 
 
-/* Turn the pipe opaque buffer pointer into a dri_bufmgr opaque
- * buffer pointer...
- */
-static INLINE struct _DriFenceObject *
-dri_fo( struct pipe_fence *bo )
-{
-   return (struct _DriFenceObject *)bo;
-}
-
-static INLINE struct pipe_fence *
-pipe_fo( struct _DriFenceObject *bo )
-{
-   return (struct pipe_fence *)bo;
-}
-
 
 #endif
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_winsys_i915.c b/src/mesa/drivers/dri/intel_winsys/intel_winsys_i915.c
index d73b309fd4..8e0eea4392 100644
--- a/src/mesa/drivers/dri/intel_winsys/intel_winsys_i915.c
+++ b/src/mesa/drivers/dri/intel_winsys/intel_winsys_i915.c
@@ -111,62 +111,19 @@ static void intel_i915_batch_reloc( struct i915_winsys *sws,
 
 
 
-static void
-intel_i915_batch_flush( struct i915_winsys *sws, 
-                        struct pipe_fence **fence )
+static void intel_i915_batch_flush( struct i915_winsys *sws )
 {
    struct intel_context *intel = intel_i915_winsys(sws)->intel;
-   struct pipe_fence *tmp_fence;
-   
-   tmp_fence = pipe_fo(intel_batchbuffer_flush( intel->batch ));
-   
-   /* this also increases the fence reference count, which is not done inside
-    * intel_batchbuffer_flush call above
-    */
-   sws->fence_reference(sws, fence, tmp_fence);
-}
 
-
-static void 
-intel_i915_fence_reference( struct i915_winsys *sws, 
-                            struct pipe_fence **dst_fence,
-                            struct pipe_fence *src_fence )
-{
-   struct _DriFenceObject **dri_dst_fence = (struct _DriFenceObject **)dst_fence;
-   struct _DriFenceObject *dri_src_fence = (struct _DriFenceObject *)src_fence;
-   
-   if(dri_src_fence)
-      driFenceReference(dri_src_fence);
-   
-   if(*dri_dst_fence)
-      driFenceUnReference(*dri_dst_fence);
-   
-   *dri_dst_fence = dri_src_fence;
+   intel_batchbuffer_flush( intel->batch );
+//   if (0) intel_i915_batch_wait_idle( sws );
 }
 
 
-static int 
-intel_i915_fence_is_signalled( struct i915_winsys *sws,
-                               struct pipe_fence *fence )
+static void intel_i915_batch_finish( struct i915_winsys *sws )
 {
-   struct _DriFenceObject *dri_fence = dri_fo(fence);
-   if (fence)
-      return driFenceSignaled(dri_fence,
-                       DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW);
-   return 1;
-}
-
-
-static int 
-intel_i915_fence_wait( struct i915_winsys *sws,
-                       struct pipe_fence *fence )
-{
-   struct _DriFenceObject *dri_fence = dri_fo(fence);
-   if (fence)
-      driFenceFinish(dri_fence,
-                     DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW,
-                     GL_FALSE);
-   return 1;
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   intel_batchbuffer_finish( intel->batch );
 }
 
 
@@ -186,10 +143,7 @@ intel_create_i915simple( struct intel_context *intel,
    iws->winsys.batch_dword = intel_i915_batch_dword;
    iws->winsys.batch_reloc = intel_i915_batch_reloc;
    iws->winsys.batch_flush = intel_i915_batch_flush;
-   iws->winsys.fence_reference = intel_i915_fence_reference;
-   iws->winsys.fence_is_signalled = intel_i915_fence_is_signalled;
-   iws->winsys.fence_wait = intel_i915_fence_wait;
-   
+   iws->winsys.batch_finish = intel_i915_batch_finish;
    iws->intel = intel;
 
    /* Create the i915simple context:
diff --git a/src/mesa/pipe/i915simple/i915_batch.h b/src/mesa/pipe/i915simple/i915_batch.h
index 603d193f62..fb88cd6db0 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 f5d770ce0d..e43274dc66 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 488682f852..ee430ebc90 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 1044cb1bdb..3c2069b827 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 386ed745d3..2c0f335d34 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