2 * Copyright 2014 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
24 #ifndef KFD_DEVICE_QUEUE_MANAGER_H_
25 #define KFD_DEVICE_QUEUE_MANAGER_H_
27 #include <linux/rwsem.h>
28 #include <linux/list.h>
30 #include "kfd_mqd_manager.h"
32 #define QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS (500)
33 #define QUEUES_PER_PIPE (8)
34 #define PIPE_PER_ME_CP_SCHEDULING (3)
35 #define CIK_VMID_NUM (8)
36 #define KFD_VMID_START_OFFSET (8)
37 #define VMID_PER_DEVICE CIK_VMID_NUM
38 #define KFD_DQM_FIRST_PIPE (0)
39 #define CIK_SDMA_QUEUES (4)
40 #define CIK_SDMA_QUEUES_PER_ENGINE (2)
41 #define CIK_SDMA_ENGINE_NUM (2)
43 struct device_process_node
{
44 struct qcm_process_device
*qpd
;
45 struct list_head list
;
49 * struct device_queue_manager
51 * @create_queue: Queue creation routine.
53 * @destroy_queue: Queue destruction routine.
55 * @update_queue: Queue update routine.
57 * @get_mqd_manager: Returns the mqd manager according to the mqd type.
59 * @exeute_queues: Dispatches the queues list to the H/W.
61 * @register_process: This routine associates a specific process with device.
63 * @unregister_process: destroys the associations between process to device.
65 * @initialize: Initializes the pipelines and memory module for that device.
67 * @start: Initializes the resources/modules the the device needs for queues
68 * execution. This function is called on device initialization and after the
69 * system woke up after suspension.
71 * @stop: This routine stops execution of all the active queue running on the
72 * H/W and basically this function called on system suspend.
74 * @uninitialize: Destroys all the device queue manager resources allocated in
77 * @create_kernel_queue: Creates kernel queue. Used for debug queue.
79 * @destroy_kernel_queue: Destroys kernel queue. Used for debug queue.
81 * @set_cache_memory_policy: Sets memory policy (cached/ non cached) for the
84 * This struct is a base class for the kfd queues scheduler in the
85 * device level. The device base class should expose the basic operations
86 * for queue creation and queue destruction. This base class hides the
87 * scheduling mode of the driver and the specific implementation of the
88 * concrete device. This class is the only class in the queues scheduler
89 * that configures the H/W.
92 struct device_queue_manager
{
93 int (*create_queue
)(struct device_queue_manager
*dqm
,
95 struct qcm_process_device
*qpd
,
97 int (*destroy_queue
)(struct device_queue_manager
*dqm
,
98 struct qcm_process_device
*qpd
,
100 int (*update_queue
)(struct device_queue_manager
*dqm
,
103 struct mqd_manager
* (*get_mqd_manager
)
104 (struct device_queue_manager
*dqm
,
105 enum KFD_MQD_TYPE type
);
107 int (*register_process
)(struct device_queue_manager
*dqm
,
108 struct qcm_process_device
*qpd
);
109 int (*unregister_process
)(struct device_queue_manager
*dqm
,
110 struct qcm_process_device
*qpd
);
111 int (*initialize
)(struct device_queue_manager
*dqm
);
112 int (*start
)(struct device_queue_manager
*dqm
);
113 int (*stop
)(struct device_queue_manager
*dqm
);
114 void (*uninitialize
)(struct device_queue_manager
*dqm
);
115 int (*create_kernel_queue
)(struct device_queue_manager
*dqm
,
116 struct kernel_queue
*kq
,
117 struct qcm_process_device
*qpd
);
118 void (*destroy_kernel_queue
)(struct device_queue_manager
*dqm
,
119 struct kernel_queue
*kq
,
120 struct qcm_process_device
*qpd
);
121 bool (*set_cache_memory_policy
)(struct device_queue_manager
*dqm
,
122 struct qcm_process_device
*qpd
,
123 enum cache_policy default_policy
,
124 enum cache_policy alternate_policy
,
125 void __user
*alternate_aperture_base
,
126 uint64_t alternate_aperture_size
);
129 struct mqd_manager
*mqds
[KFD_MQD_TYPE_MAX
];
130 struct packet_manager packets
;
133 struct list_head queues
;
134 unsigned int processes_count
;
135 unsigned int queue_count
;
136 unsigned int sdma_queue_count
;
137 unsigned int next_pipe_to_allocate
;
138 unsigned int *allocated_queues
;
139 unsigned int sdma_bitmap
;
140 unsigned int vmid_bitmap
;
141 uint64_t pipelines_addr
;
142 struct kfd_mem_obj
*pipeline_mem
;
143 uint64_t fence_gpu_addr
;
144 unsigned int *fence_addr
;
145 struct kfd_mem_obj
*fence_mem
;
151 #endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */