1 /*
2 * Copyright 2016 Advanced Micro Devices, Inc.
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 shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Christian König
23 */
24 #ifndef __AMDGPU_SYNC_H__
25 #define __AMDGPU_SYNC_H__
26
27 #include <linux/hashtable.h>
28
29 struct dma_fence;
30 struct dma_resv;
31 struct amdgpu_device;
32 struct amdgpu_ring;
33
34 /*
35 * Container for fences used to sync command submissions.
36 */
37 struct amdgpu_sync {
38 DECLARE_HASHTABLE(fences, 4);
39 struct dma_fence *last_vm_update;
40 };
41
42 void amdgpu_sync_create(struct amdgpu_sync *sync);
43 int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync,
44 struct dma_fence *f, bool explicit);
45 int amdgpu_sync_resv(struct amdgpu_device *adev,
46 struct amdgpu_sync *sync,
47 struct dma_resv *resv,
48 void *owner,
49 bool explicit_sync);
50 struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
51 struct amdgpu_ring *ring);
52 struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync, bool *explicit);
53 int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone);
54 int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr);
55 void amdgpu_sync_free(struct amdgpu_sync *sync);
56 int amdgpu_sync_init(void);
57 void amdgpu_sync_fini(void);
58
59 #endif