1 /* 2 * Copyright © 2017 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 */ 24 25 #ifndef __I915_SYNCMAP_H__ 26 #define __I915_SYNCMAP_H__ 27 28 #include <linux/types.h> 29 30 struct i915_syncmap; 31 #define KSYNCMAP 16 /* radix of the tree, how many slots in each layer */ 32 33 void i915_syncmap_init(struct i915_syncmap **root); 34 int i915_syncmap_set(struct i915_syncmap **root, u64 id, u32 seqno); 35 bool i915_syncmap_is_later(struct i915_syncmap **root, u64 id, u32 seqno); 36 void i915_syncmap_free(struct i915_syncmap **root); 37 38 #endif /* __I915_SYNCMAP_H__ */ 39