/* * Copyright 2016 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Christian König */#ifndef __AMDGPU_SYNC_H__#define __AMDGPU_SYNC_H__ #include <linux/hashtable.h> struct dma_fence;struct reservation_object;struct amdgpu_device;struct amdgpu_ring; /* * Container for fences used to sync command submissions. */struct amdgpu_sync {	DECLARE_HASHTABLE(fences, 4);	struct dma_fence	*last_vm_update;}; void amdgpu_sync_create(struct amdgpu_sync *sync);int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync,		      struct dma_fence *f);int amdgpu_sync_resv(struct amdgpu_device *adev,		     struct amdgpu_sync *sync,		     struct reservation_object *resv,		     void *owner,		     bool explicit_sync);struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,				     struct amdgpu_ring *ring);struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr);void amdgpu_sync_free(struct amdgpu_sync *sync);int amdgpu_sync_init(void);void amdgpu_sync_fini(void); #endif