| 1 | |
| 2 | * Copyright 2016 Advanced Micro Devices, Inc.
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| 3 | *
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 5 | * copy of this software and associated documentation files (the "Software"),
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| 6 | * to deal in the Software without restriction, including without limitation
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the
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| 9 | * Software is furnished to do so, subject to the following conditions:
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| 10 | *
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| 11 | * The above copyright notice and this permission notice shall be included in
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| 12 | * all copies or substantial portions of the Software.
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| 13 | *
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| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 20 | * OTHER DEALINGS IN THE SOFTWARE.
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| 21 | *
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| 22 | * Authors: Christian König
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| 23 |
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| 24 | #ifndef __AMDGPU_SYNC_H__
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| 25 | #define __AMDGPU_SYNC_H__
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| 26 |
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| 27 | #include <linux/hashtable.h>
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| 28 |
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| 29 | struct dma_fence;
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| 30 | struct dma_resv;
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| 31 | struct amdgpu_device;
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| 32 | struct amdgpu_ring;
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| 33 | struct amdgpu_job;
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| 34 |
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| 35 | enum amdgpu_sync_mode {
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| 36 | AMDGPU_SYNC_ALWAYS,
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| 37 | AMDGPU_SYNC_NE_OWNER,
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| 38 | AMDGPU_SYNC_EQ_OWNER,
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| 39 | AMDGPU_SYNC_EXPLICIT
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| 40 | };
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| 41 |
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| 42 | |
| 43 | * Container for fences used to sync command submissions.
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| 44 |
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| 45 | struct amdgpu_sync {
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| 46 | DECLARE_HASHTABLE(fences, 4);
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| 47 | };
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| 48 |
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| 49 | void amdgpu_sync_create(struct amdgpu_sync *sync);
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| 50 | int amdgpu_sync_fence(struct amdgpu_sync *sync, struct dma_fence *f,
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| 51 | gfp_t flags);
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| 52 | int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,
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| 53 | struct dma_resv *resv, enum amdgpu_sync_mode mode,
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| 54 | void *owner);
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| 55 | int amdgpu_sync_kfd(struct amdgpu_sync *sync, struct dma_resv *resv);
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| 56 | struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
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| 57 | struct amdgpu_ring *ring);
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| 58 | struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);
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| 59 | int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone);
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| 60 | void amdgpu_sync_move(struct amdgpu_sync *src, struct amdgpu_sync *dst);
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| 61 | int amdgpu_sync_push_to_job(struct amdgpu_sync *sync, struct amdgpu_job *job);
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| 62 | int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr);
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| 63 | void amdgpu_sync_free(struct amdgpu_sync *sync);
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| 64 | int amdgpu_sync_init(void);
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| 65 | void amdgpu_sync_fini(void);
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| 66 |
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| 67 | #endif
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