1 files changed, 58 insertions, 0 deletions
diff --git a/src/gallium/drivers/iris/iris_binder.c b/src/gallium/drivers/iris/iris_binder.c
new file mode 100644
index 00000000000..5c54c0a13d9
--- /dev/null
+++ b/src/gallium/drivers/iris/iris_binder.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * 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
+ * on 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
+ * THE AUTHOR(S) AND/OR THEIR 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.
+ */
+
+#include <stdlib.h>
+#include "util/u_math.h"
+#include "iris_binder.h"
+#include "iris_bufmgr.h"
+
+/* 64kb */
+#define BINDER_SIZE (64 * 1024)
+
+void *
+iris_binder_reserve(struct iris_binder *binder, unsigned size,
+                    uint32_t *out_offset)
+{
+   /* XXX: Implement a real ringbuffer, for now just croak if run out */
+   assert(size > 0);
+   assert(binder->insert_point + size <= BINDER_SIZE);
+
+   binder->insert_point = align(binder->insert_point + size, 64);
+
+   return binder->map + *out_offset;
+}
+
+void
+iris_init_binder(struct iris_binder *binder, struct iris_bufmgr *bufmgr)
+{
+   binder->bo =
+      iris_bo_alloc(bufmgr, "binder", BINDER_SIZE, IRIS_MEMZONE_BINDER);
+   binder->map = iris_bo_map(NULL, binder->bo, MAP_WRITE);
+}
+
+void
+iris_destroy_binder(struct iris_binder *binder)
+{
+   iris_bo_unreference(binder->bo);
+   free(binder);
+}