[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_sync.h

/*
 * 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);
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
Commit	Line	Data
56113504 CK	1	/*
	2	* Copyright 2016 Advanced Micro Devices, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* 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 OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Christian König
	23	*/
	24	#ifndef __AMDGPU_SYNC_H__
	25	#define __AMDGPU_SYNC_H__
	26
	27	#include <linux/hashtable.h>
	28
220196b3	29	struct dma_fence;
56113504 CK	30	struct reservation_object;
	31	struct amdgpu_device;
	32	struct amdgpu_ring;
	33
	34	/*
	35	* Container for fences used to sync command submissions.
	36	*/
	37	struct amdgpu_sync {
	38	DECLARE_HASHTABLE(fences, 4);
220196b3	39	struct dma_fence *last_vm_update;
56113504 CK	40	};
	41
	42	void amdgpu_sync_create(struct amdgpu_sync *sync);
	43	int amdgpu_sync_fence(struct amdgpu_device adev, struct amdgpu_sync sync,
220196b3	44	struct dma_fence *f);
56113504 CK	45	int amdgpu_sync_resv(struct amdgpu_device *adev,
	46	struct amdgpu_sync *sync,
	47	struct reservation_object *resv,
	48	void *owner);
220196b3	49	struct dma_fence amdgpu_sync_peek_fence(struct amdgpu_sync sync,
56113504	50	struct amdgpu_ring *ring);
220196b3	51	struct dma_fence amdgpu_sync_get_fence(struct amdgpu_sync sync);
a6583af4	52	int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr);
56113504 CK	53	void amdgpu_sync_free(struct amdgpu_sync *sync);
	54	int amdgpu_sync_init(void);
	55	void amdgpu_sync_fini(void);
	56
	57	#endif