1 /* $NetBSD: amdgpu_sync.h,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */ 2 3 /* 4 * Copyright 2016 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Christian König 25 */ 26 #ifndef __AMDGPU_SYNC_H__ 27 #define __AMDGPU_SYNC_H__ 28 29 #include <linux/hashtable.h> 30 31 struct dma_fence; 32 struct dma_resv; 33 struct amdgpu_device; 34 struct amdgpu_ring; 35 36 /* 37 * Container for fences used to sync command submissions. 38 */ 39 struct amdgpu_sync { 40 DECLARE_HASHTABLE(fences, 4); 41 struct dma_fence *last_vm_update; 42 }; 43 44 void amdgpu_sync_create(struct amdgpu_sync *sync); 45 int amdgpu_sync_fence(struct amdgpu_sync *sync, struct dma_fence *f, 46 bool explicit); 47 int amdgpu_sync_vm_fence(struct amdgpu_sync *sync, struct dma_fence *fence); 48 int amdgpu_sync_resv(struct amdgpu_device *adev, 49 struct amdgpu_sync *sync, 50 struct dma_resv *resv, 51 void *owner, 52 bool explicit_sync); 53 struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync, 54 struct amdgpu_ring *ring); 55 struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync, 56 bool *explicit); 57 int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone); 58 int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr); 59 void amdgpu_sync_free(struct amdgpu_sync *sync); 60 int amdgpu_sync_init(void); 61 void amdgpu_sync_fini(void); 62 63 #endif 64