/* * 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 dma_resv;struct amdgpu_device;struct amdgpu_ring;struct amdgpu_job; enum amdgpu_sync_mode {	AMDGPU_SYNC_ALWAYS,	AMDGPU_SYNC_NE_OWNER,	AMDGPU_SYNC_EQ_OWNER,	AMDGPU_SYNC_EXPLICIT}; /* * Container for fences used to sync command submissions. */struct amdgpu_sync {	DECLARE_HASHTABLE(fences, 4);}; void amdgpu_sync_create(struct amdgpu_sync *sync);int amdgpu_sync_fence(struct amdgpu_sync *sync, struct dma_fence *f,		      gfp_t flags);int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,		     struct dma_resv *resv, enum amdgpu_sync_mode mode,		     void *owner);int amdgpu_sync_kfd(struct amdgpu_sync *sync, struct dma_resv *resv);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_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone);void amdgpu_sync_move(struct amdgpu_sync *src, struct amdgpu_sync *dst);int amdgpu_sync_push_to_job(struct amdgpu_sync *sync, struct amdgpu_job *job);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