1 files changed, 82 insertions, 0 deletions
diff --git a/src/mesa/pipe/i915simple/i915_flush.c b/src/mesa/pipe/i915simple/i915_flush.c
new file mode 100644
index 0000000000..1cf945e9a2
--- /dev/null
+++ b/src/mesa/pipe/i915simple/i915_flush.c
@@ -0,0 +1,82 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+/* Author:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+#include "pipe/p_defines.h"
+#include "i915_context.h"
+#include "i915_reg.h"
+#include "i915_batch.h"
+
+/* There will be actual work to do here.  In future we may want a
+ * fence-like interface instead of finish, and perhaps flush will take
+ * flags to indicate what type of flush is required.
+ */
+static void i915_flush( struct pipe_context *pipe,
+			unsigned flags )
+{
+   struct i915_context *i915 = i915_context(pipe);
+
+   /* Do we need to emit an MI_FLUSH command to flush the hardware
+    * caches?
+    */
+   if (flags) {
+      unsigned flush = MI_FLUSH;
+      
+      if (!(flags & PIPE_FLUSH_RENDER_CACHE))
+	 flush |= INHIBIT_FLUSH_RENDER_CACHE;
+
+      if (flags & PIPE_FLUSH_TEXTURE_CACHE)
+	 flush |= FLUSH_MAP_CACHE;
+
+      BEGIN_BATCH( 1, 0 );
+      OUT_BATCH( flush );
+      ADVANCE_BATCH();
+   }
+
+   /* If there are no flags, just flush pending commands to hardware:
+    */
+   FLUSH_BATCH();
+}
+
+static void i915_finish(struct pipe_context *pipe)
+{
+   struct i915_context *i915 = i915_context(pipe);
+
+   i915_flush( pipe, 0 );
+   i915->winsys->batch_wait_idle( i915->winsys );
+}
+
+
+void i915_init_flush_functions( struct i915_context *i915 )
+{
+   i915->pipe.flush = i915_flush;
+   i915->pipe.finish = i915_finish;
+}