summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
blob: 52035bf0c1cb3ce896901573491a071c17c8bcea (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
/*
 * Copyright 2014 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.
 *
 */

#ifndef KFD_DEVICE_QUEUE_MANAGER_H_
#define KFD_DEVICE_QUEUE_MANAGER_H_

#include <linux/rwsem.h>
#include <linux/list.h>
#include "kfd_priv.h"
#include "kfd_mqd_manager.h"

#define QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS	(500)
#define QUEUES_PER_PIPE				(8)
#define PIPE_PER_ME_CP_SCHEDULING		(3)
#define CIK_VMID_NUM				(8)
#define KFD_VMID_START_OFFSET			(8)
#define VMID_PER_DEVICE				CIK_VMID_NUM
#define KFD_DQM_FIRST_PIPE			(0)

struct device_process_node {
	struct qcm_process_device *qpd;
	struct list_head list;
};

/**
 * struct device_queue_manager
 *
 * @create_queue: Queue creation routine.
 *
 * @destroy_queue: Queue destruction routine.
 *
 * @update_queue: Queue update routine.
 *
 * @get_mqd_manager: Returns the mqd manager according to the mqd type.
 *
 * @exeute_queues: Dispatches the queues list to the H/W.
 *
 * @register_process: This routine associates a specific process with device.
 *
 * @unregister_process: destroys the associations between process to device.
 *
 * @initialize: Initializes the pipelines and memory module for that device.
 *
 * @start: Initializes the resources/modules the the device needs for queues
 * execution. This function is called on device initialization and after the
 * system woke up after suspension.
 *
 * @stop: This routine stops execution of all the active queue running on the
 * H/W and basically this function called on system suspend.
 *
 * @uninitialize: Destroys all the device queue manager resources allocated in
 * initialize routine.
 *
 * @create_kernel_queue: Creates kernel queue. Used for debug queue.
 *
 * @destroy_kernel_queue: Destroys kernel queue. Used for debug queue.
 *
 * @set_cache_memory_policy: Sets memory policy (cached/ non cached) for the
 * memory apertures.
 *
 * This struct is a base class for the kfd queues scheduler in the
 * device level. The device base class should expose the basic operations
 * for queue creation and queue destruction. This base class hides the
 * scheduling mode of the driver and the specific implementation of the
 * concrete device. This class is the only class in the queues scheduler
 * that configures the H/W.
 */

struct device_queue_manager {
	int	(*create_queue)(struct device_queue_manager *dqm,
				struct queue *q,
				struct qcm_process_device *qpd,
				int *allocate_vmid);
	int	(*destroy_queue)(struct device_queue_manager *dqm,
				struct qcm_process_device *qpd,
				struct queue *q);
	int	(*update_queue)(struct device_queue_manager *dqm,
				struct queue *q);

	struct mqd_manager * (*get_mqd_manager)
					(struct device_queue_manager *dqm,
					enum KFD_MQD_TYPE type);

	int	(*register_process)(struct device_queue_manager *dqm,
					struct qcm_process_device *qpd);
	int	(*unregister_process)(struct device_queue_manager *dqm,
					struct qcm_process_device *qpd);
	int	(*initialize)(struct device_queue_manager *dqm);
	int	(*start)(struct device_queue_manager *dqm);
	int	(*stop)(struct device_queue_manager *dqm);
	void	(*uninitialize)(struct device_queue_manager *dqm);
	int	(*create_kernel_queue)(struct device_queue_manager *dqm,
					struct kernel_queue *kq,
					struct qcm_process_device *qpd);
	void	(*destroy_kernel_queue)(struct device_queue_manager *dqm,
					struct kernel_queue *kq,
					struct qcm_process_device *qpd);
	bool	(*set_cache_memory_policy)(struct device_queue_manager *dqm,
					   struct qcm_process_device *qpd,
					   enum cache_policy default_policy,
					   enum cache_policy alternate_policy,
					   void __user *alternate_aperture_base,
					   uint64_t alternate_aperture_size);


	struct mqd_manager	*mqds[KFD_MQD_TYPE_MAX];
	struct packet_manager	packets;
	struct kfd_dev		*dev;
	struct mutex		lock;
	struct list_head	queues;
	unsigned int		processes_count;
	unsigned int		queue_count;
	unsigned int		total_queue_count;
	unsigned int		next_pipe_to_allocate;
	unsigned int		*allocated_queues;
	unsigned int		vmid_bitmap;
	uint64_t		pipelines_addr;
	struct kfd_mem_obj	*pipeline_mem;
	uint64_t		fence_gpu_addr;
	unsigned int		*fence_addr;
	struct kfd_mem_obj	*fence_mem;
	bool			active_runlist;
};



#endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */
OpenPOWER on IntegriCloud