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1/*2 * Copyright 2016 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Christian König23 */24#ifndef __AMDGPU_SYNC_H__25#define __AMDGPU_SYNC_H__26 27#include <linux/hashtable.h>28 29struct dma_fence;30struct dma_resv;31struct amdgpu_device;32struct amdgpu_ring;33struct amdgpu_job;34 35enum amdgpu_sync_mode {36 AMDGPU_SYNC_ALWAYS,37 AMDGPU_SYNC_NE_OWNER,38 AMDGPU_SYNC_EQ_OWNER,39 AMDGPU_SYNC_EXPLICIT40};41 42/*43 * Container for fences used to sync command submissions.44 */45struct amdgpu_sync {46 DECLARE_HASHTABLE(fences, 4);47};48 49void amdgpu_sync_create(struct amdgpu_sync *sync);50int amdgpu_sync_fence(struct amdgpu_sync *sync, struct dma_fence *f);51int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,52 struct dma_resv *resv, enum amdgpu_sync_mode mode,53 void *owner);54int amdgpu_sync_kfd(struct amdgpu_sync *sync, struct dma_resv *resv);55struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,56 struct amdgpu_ring *ring);57struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);58int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone);59int amdgpu_sync_push_to_job(struct amdgpu_sync *sync, struct amdgpu_job *job);60int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr);61void amdgpu_sync_free(struct amdgpu_sync *sync);62int amdgpu_sync_init(void);63void amdgpu_sync_fini(void);64 65#endif66