| 1 | /* |
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| 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 | /* |
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| 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 | int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync, |
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| 52 | struct dma_resv *resv, enum amdgpu_sync_mode mode, |
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| 53 | void *owner); |
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| 54 | struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync, |
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| 55 | struct amdgpu_ring *ring); |
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| 56 | struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync); |
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| 57 | int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone); |
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| 58 | int amdgpu_sync_push_to_job(struct amdgpu_sync *sync, struct amdgpu_job *job); |
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| 59 | int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr); |
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| 60 | void amdgpu_sync_free(struct amdgpu_sync *sync); |
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| 61 | int amdgpu_sync_init(void); |
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| 62 | void amdgpu_sync_fini(void); |
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| 63 | |
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| 64 | #endif |
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| 65 | |
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