1 files changed, 66 insertions, 0 deletions
diff --git a/linux-core/i915_buffer.c b/linux-core/i915_buffer.c
new file mode 100644
index 00000000..c3e54468
--- /dev/null
+++ b/linux-core/i915_buffer.c
@@ -0,0 +1,66 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include "drmP.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+
+
+drm_ttm_backend_t *i915_create_ttm_backend_entry(drm_device_t * dev)
+{
+	return drm_agp_init_ttm(dev, NULL);
+}
+
+int i915_fence_types(uint32_t buffer_flags, uint32_t * class, uint32_t * type)
+{
+	*class = 0;
+	if (buffer_flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
+		*type = 3;
+	else
+		*type = 1;
+	return 0;
+}
+
+int i915_invalidate_caches(drm_device_t * dev, uint32_t flags)
+{
+	/*
+	 * FIXME: Only emit once per batchbuffer submission.
+	 */
+
+	uint32_t flush_cmd = MI_NO_WRITE_FLUSH;
+
+	if (flags & DRM_BO_FLAG_READ)
+		flush_cmd |= MI_READ_FLUSH;
+	if (flags & DRM_BO_FLAG_EXE)
+		flush_cmd |= MI_EXE_FLUSH;
+
+	return i915_emit_mi_flush(dev, flush_cmd);
+}