1*b843c749SSergey Zigachev /* 2*b843c749SSergey Zigachev * Copyright 2016 Advanced Micro Devices, Inc. 3*b843c749SSergey Zigachev * 4*b843c749SSergey Zigachev * Permission is hereby granted, free of charge, to any person obtaining a 5*b843c749SSergey Zigachev * copy of this software and associated documentation files (the "Software"), 6*b843c749SSergey Zigachev * to deal in the Software without restriction, including without limitation 7*b843c749SSergey Zigachev * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8*b843c749SSergey Zigachev * and/or sell copies of the Software, and to permit persons to whom the 9*b843c749SSergey Zigachev * Software is furnished to do so, subject to the following conditions: 10*b843c749SSergey Zigachev * 11*b843c749SSergey Zigachev * The above copyright notice and this permission notice shall be included in 12*b843c749SSergey Zigachev * all copies or substantial portions of the Software. 13*b843c749SSergey Zigachev * 14*b843c749SSergey Zigachev * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15*b843c749SSergey Zigachev * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16*b843c749SSergey Zigachev * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17*b843c749SSergey Zigachev * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18*b843c749SSergey Zigachev * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19*b843c749SSergey Zigachev * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20*b843c749SSergey Zigachev * OTHER DEALINGS IN THE SOFTWARE. 21*b843c749SSergey Zigachev * 22*b843c749SSergey Zigachev * Authors: Christian König 23*b843c749SSergey Zigachev */ 24*b843c749SSergey Zigachev #ifndef __AMDGPU_SYNC_H__ 25*b843c749SSergey Zigachev #define __AMDGPU_SYNC_H__ 26*b843c749SSergey Zigachev 27*b843c749SSergey Zigachev #include <linux/hashtable.h> 28*b843c749SSergey Zigachev 29*b843c749SSergey Zigachev struct dma_fence; 30*b843c749SSergey Zigachev struct reservation_object; 31*b843c749SSergey Zigachev struct amdgpu_device; 32*b843c749SSergey Zigachev struct amdgpu_ring; 33*b843c749SSergey Zigachev 34*b843c749SSergey Zigachev /* 35*b843c749SSergey Zigachev * Container for fences used to sync command submissions. 36*b843c749SSergey Zigachev */ 37*b843c749SSergey Zigachev struct amdgpu_sync { 38*b843c749SSergey Zigachev DECLARE_HASHTABLE(fences, 4); 39*b843c749SSergey Zigachev struct dma_fence *last_vm_update; 40*b843c749SSergey Zigachev }; 41*b843c749SSergey Zigachev 42*b843c749SSergey Zigachev void amdgpu_sync_create(struct amdgpu_sync *sync); 43*b843c749SSergey Zigachev int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync, 44*b843c749SSergey Zigachev struct dma_fence *f, bool explicit); 45*b843c749SSergey Zigachev int amdgpu_sync_resv(struct amdgpu_device *adev, 46*b843c749SSergey Zigachev struct amdgpu_sync *sync, 47*b843c749SSergey Zigachev struct reservation_object *resv, 48*b843c749SSergey Zigachev void *owner, 49*b843c749SSergey Zigachev bool explicit_sync); 50*b843c749SSergey Zigachev struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync, 51*b843c749SSergey Zigachev struct amdgpu_ring *ring); 52*b843c749SSergey Zigachev struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync, bool *explicit); 53*b843c749SSergey Zigachev int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone); 54*b843c749SSergey Zigachev int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr); 55*b843c749SSergey Zigachev void amdgpu_sync_free(struct amdgpu_sync *sync); 56*b843c749SSergey Zigachev int amdgpu_sync_init(void); 57*b843c749SSergey Zigachev void amdgpu_sync_fini(void); 58*b843c749SSergey Zigachev 59*b843c749SSergey Zigachev #endif 60