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1/*
2 * Copyright 2014 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 */
23
24#ifndef KFD_DEVICE_QUEUE_MANAGER_H_
25#define KFD_DEVICE_QUEUE_MANAGER_H_
26
27#include <linux/rwsem.h>
28#include <linux/list.h>
29#include <linux/mutex.h>
30#include <linux/sched/mm.h>
31#include "kfd_priv.h"
32#include "kfd_mqd_manager.h"
33
34
35#define VMID_NUM 16
36
37struct device_process_node {
38 struct qcm_process_device *qpd;
39 struct list_head list;
40};
41
42/**
43 * struct device_queue_manager_ops
44 *
45 * @create_queue: Queue creation routine.
46 *
47 * @destroy_queue: Queue destruction routine.
48 *
49 * @update_queue: Queue update routine.
50 *
51 * @exeute_queues: Dispatches the queues list to the H/W.
52 *
53 * @register_process: This routine associates a specific process with device.
54 *
55 * @unregister_process: destroys the associations between process to device.
56 *
57 * @initialize: Initializes the pipelines and memory module for that device.
58 *
59 * @start: Initializes the resources/modules the the device needs for queues
60 * execution. This function is called on device initialization and after the
61 * system woke up after suspension.
62 *
63 * @stop: This routine stops execution of all the active queue running on the
64 * H/W and basically this function called on system suspend.
65 *
66 * @uninitialize: Destroys all the device queue manager resources allocated in
67 * initialize routine.
68 *
69 * @create_kernel_queue: Creates kernel queue. Used for debug queue.
70 *
71 * @destroy_kernel_queue: Destroys kernel queue. Used for debug queue.
72 *
73 * @set_cache_memory_policy: Sets memory policy (cached/ non cached) for the
74 * memory apertures.
75 *
76 * @process_termination: Clears all process queues belongs to that device.
77 *
78 * @evict_process_queues: Evict all active queues of a process
79 *
80 * @restore_process_queues: Restore all evicted queues queues of a process
81 *
82 * @get_wave_state: Retrieves context save state and optionally copies the
83 * control stack, if kept in the MQD, to the given userspace address.
84 */
85
86struct device_queue_manager_ops {
87 int (*create_queue)(struct device_queue_manager *dqm,
88 struct queue *q,
89 struct qcm_process_device *qpd);
90
91 int (*destroy_queue)(struct device_queue_manager *dqm,
92 struct qcm_process_device *qpd,
93 struct queue *q);
94
95 int (*update_queue)(struct device_queue_manager *dqm,
96 struct queue *q);
97
98 int (*register_process)(struct device_queue_manager *dqm,
99 struct qcm_process_device *qpd);
100
101 int (*unregister_process)(struct device_queue_manager *dqm,
102 struct qcm_process_device *qpd);
103
104 int (*initialize)(struct device_queue_manager *dqm);
105 int (*start)(struct device_queue_manager *dqm);
106 int (*stop)(struct device_queue_manager *dqm);
107 void (*pre_reset)(struct device_queue_manager *dqm);
108 void (*uninitialize)(struct device_queue_manager *dqm);
109 int (*create_kernel_queue)(struct device_queue_manager *dqm,
110 struct kernel_queue *kq,
111 struct qcm_process_device *qpd);
112
113 void (*destroy_kernel_queue)(struct device_queue_manager *dqm,
114 struct kernel_queue *kq,
115 struct qcm_process_device *qpd);
116
117 bool (*set_cache_memory_policy)(struct device_queue_manager *dqm,
118 struct qcm_process_device *qpd,
119 enum cache_policy default_policy,
120 enum cache_policy alternate_policy,
121 void __user *alternate_aperture_base,
122 uint64_t alternate_aperture_size);
123
124 int (*set_trap_handler)(struct device_queue_manager *dqm,
125 struct qcm_process_device *qpd,
126 uint64_t tba_addr,
127 uint64_t tma_addr);
128
129 int (*process_termination)(struct device_queue_manager *dqm,
130 struct qcm_process_device *qpd);
131
132 int (*evict_process_queues)(struct device_queue_manager *dqm,
133 struct qcm_process_device *qpd);
134 int (*restore_process_queues)(struct device_queue_manager *dqm,
135 struct qcm_process_device *qpd);
136
137 int (*get_wave_state)(struct device_queue_manager *dqm,
138 struct queue *q,
139 void __user *ctl_stack,
140 u32 *ctl_stack_used_size,
141 u32 *save_area_used_size);
142};
143
144struct device_queue_manager_asic_ops {
145 int (*update_qpd)(struct device_queue_manager *dqm,
146 struct qcm_process_device *qpd);
147 bool (*set_cache_memory_policy)(struct device_queue_manager *dqm,
148 struct qcm_process_device *qpd,
149 enum cache_policy default_policy,
150 enum cache_policy alternate_policy,
151 void __user *alternate_aperture_base,
152 uint64_t alternate_aperture_size);
153 void (*init_sdma_vm)(struct device_queue_manager *dqm,
154 struct queue *q,
155 struct qcm_process_device *qpd);
156 struct mqd_manager * (*mqd_manager_init)(enum KFD_MQD_TYPE type,
157 struct kfd_dev *dev);
158};
159
160/**
161 * struct device_queue_manager
162 *
163 * This struct is a base class for the kfd queues scheduler in the
164 * device level. The device base class should expose the basic operations
165 * for queue creation and queue destruction. This base class hides the
166 * scheduling mode of the driver and the specific implementation of the
167 * concrete device. This class is the only class in the queues scheduler
168 * that configures the H/W.
169 *
170 */
171
172struct device_queue_manager {
173 struct device_queue_manager_ops ops;
174 struct device_queue_manager_asic_ops asic_ops;
175
176 struct mqd_manager *mqd_mgrs[KFD_MQD_TYPE_MAX];
177 struct packet_manager packets;
178 struct kfd_dev *dev;
179 struct mutex lock_hidden; /* use dqm_lock/unlock(dqm) */
180 struct list_head queues;
181 unsigned int saved_flags;
182 unsigned int processes_count;
183 unsigned int active_queue_count;
184 unsigned int active_cp_queue_count;
185 unsigned int gws_queue_count;
186 unsigned int total_queue_count;
187 unsigned int next_pipe_to_allocate;
188 unsigned int *allocated_queues;
189 uint64_t sdma_bitmap;
190 uint64_t xgmi_sdma_bitmap;
191 /* the pasid mapping for each kfd vmid */
192 uint16_t vmid_pasid[VMID_NUM];
193 uint64_t pipelines_addr;
194 uint64_t fence_gpu_addr;
195 unsigned int *fence_addr;
196 struct kfd_mem_obj *fence_mem;
197 bool active_runlist;
198 int sched_policy;
199
200 /* hw exception */
201 bool is_hws_hang;
202 bool is_resetting;
203 struct work_struct hw_exception_work;
204 struct kfd_mem_obj hiq_sdma_mqd;
205 bool sched_running;
206};
207
208void device_queue_manager_init_cik(
209 struct device_queue_manager_asic_ops *asic_ops);
210void device_queue_manager_init_cik_hawaii(
211 struct device_queue_manager_asic_ops *asic_ops);
212void device_queue_manager_init_vi(
213 struct device_queue_manager_asic_ops *asic_ops);
214void device_queue_manager_init_vi_tonga(
215 struct device_queue_manager_asic_ops *asic_ops);
216void device_queue_manager_init_v9(
217 struct device_queue_manager_asic_ops *asic_ops);
218void device_queue_manager_init_v10_navi10(
219 struct device_queue_manager_asic_ops *asic_ops);
220void program_sh_mem_settings(struct device_queue_manager *dqm,
221 struct qcm_process_device *qpd);
222unsigned int get_cp_queues_num(struct device_queue_manager *dqm);
223unsigned int get_queues_per_pipe(struct device_queue_manager *dqm);
224unsigned int get_pipes_per_mec(struct device_queue_manager *dqm);
225unsigned int get_num_sdma_queues(struct device_queue_manager *dqm);
226unsigned int get_num_xgmi_sdma_queues(struct device_queue_manager *dqm);
227
228static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd)
229{
230 return (pdd->lds_base >> 16) & 0xFF;
231}
232
233static inline unsigned int
234get_sh_mem_bases_nybble_64(struct kfd_process_device *pdd)
235{
236 return (pdd->lds_base >> 60) & 0x0E;
237}
238
239/* The DQM lock can be taken in MMU notifiers. Make sure no reclaim-FS
240 * happens while holding this lock anywhere to prevent deadlocks when
241 * an MMU notifier runs in reclaim-FS context.
242 */
243static inline void dqm_lock(struct device_queue_manager *dqm)
244{
245 mutex_lock(&dqm->lock_hidden);
246 dqm->saved_flags = memalloc_nofs_save();
247}
248static inline void dqm_unlock(struct device_queue_manager *dqm)
249{
250 memalloc_nofs_restore(dqm->saved_flags);
251 mutex_unlock(&dqm->lock_hidden);
252}
253
254int read_sdma_queue_counter(uint64_t q_rptr, uint64_t *val);
255#endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */
1/*
2 * Copyright 2014 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 */
23
24#ifndef KFD_DEVICE_QUEUE_MANAGER_H_
25#define KFD_DEVICE_QUEUE_MANAGER_H_
26
27#include <linux/rwsem.h>
28#include <linux/list.h>
29#include "kfd_priv.h"
30#include "kfd_mqd_manager.h"
31
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)
42
43struct device_process_node {
44 struct qcm_process_device *qpd;
45 struct list_head list;
46};
47
48/**
49 * struct device_queue_manager_ops
50 *
51 * @create_queue: Queue creation routine.
52 *
53 * @destroy_queue: Queue destruction routine.
54 *
55 * @update_queue: Queue update routine.
56 *
57 * @get_mqd_manager: Returns the mqd manager according to the mqd type.
58 *
59 * @exeute_queues: Dispatches the queues list to the H/W.
60 *
61 * @register_process: This routine associates a specific process with device.
62 *
63 * @unregister_process: destroys the associations between process to device.
64 *
65 * @initialize: Initializes the pipelines and memory module for that device.
66 *
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.
70 *
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.
73 *
74 * @uninitialize: Destroys all the device queue manager resources allocated in
75 * initialize routine.
76 *
77 * @create_kernel_queue: Creates kernel queue. Used for debug queue.
78 *
79 * @destroy_kernel_queue: Destroys kernel queue. Used for debug queue.
80 *
81 * @set_cache_memory_policy: Sets memory policy (cached/ non cached) for the
82 * memory apertures.
83 *
84 */
85
86struct device_queue_manager_ops {
87 int (*create_queue)(struct device_queue_manager *dqm,
88 struct queue *q,
89 struct qcm_process_device *qpd,
90 int *allocate_vmid);
91
92 int (*destroy_queue)(struct device_queue_manager *dqm,
93 struct qcm_process_device *qpd,
94 struct queue *q);
95
96 int (*update_queue)(struct device_queue_manager *dqm,
97 struct queue *q);
98
99 struct mqd_manager * (*get_mqd_manager)
100 (struct device_queue_manager *dqm,
101 enum KFD_MQD_TYPE type);
102
103 int (*register_process)(struct device_queue_manager *dqm,
104 struct qcm_process_device *qpd);
105
106 int (*unregister_process)(struct device_queue_manager *dqm,
107 struct qcm_process_device *qpd);
108
109 int (*initialize)(struct device_queue_manager *dqm);
110 int (*start)(struct device_queue_manager *dqm);
111 int (*stop)(struct device_queue_manager *dqm);
112 void (*uninitialize)(struct device_queue_manager *dqm);
113 int (*create_kernel_queue)(struct device_queue_manager *dqm,
114 struct kernel_queue *kq,
115 struct qcm_process_device *qpd);
116
117 void (*destroy_kernel_queue)(struct device_queue_manager *dqm,
118 struct kernel_queue *kq,
119 struct qcm_process_device *qpd);
120
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);
127};
128
129struct device_queue_manager_asic_ops {
130 int (*register_process)(struct device_queue_manager *dqm,
131 struct qcm_process_device *qpd);
132 int (*initialize)(struct device_queue_manager *dqm);
133 bool (*set_cache_memory_policy)(struct device_queue_manager *dqm,
134 struct qcm_process_device *qpd,
135 enum cache_policy default_policy,
136 enum cache_policy alternate_policy,
137 void __user *alternate_aperture_base,
138 uint64_t alternate_aperture_size);
139 void (*init_sdma_vm)(struct device_queue_manager *dqm,
140 struct queue *q,
141 struct qcm_process_device *qpd);
142};
143
144/**
145 * struct device_queue_manager
146 *
147 * This struct is a base class for the kfd queues scheduler in the
148 * device level. The device base class should expose the basic operations
149 * for queue creation and queue destruction. This base class hides the
150 * scheduling mode of the driver and the specific implementation of the
151 * concrete device. This class is the only class in the queues scheduler
152 * that configures the H/W.
153 *
154 */
155
156struct device_queue_manager {
157 struct device_queue_manager_ops ops;
158 struct device_queue_manager_asic_ops ops_asic_specific;
159
160 struct mqd_manager *mqds[KFD_MQD_TYPE_MAX];
161 struct packet_manager packets;
162 struct kfd_dev *dev;
163 struct mutex lock;
164 struct list_head queues;
165 unsigned int processes_count;
166 unsigned int queue_count;
167 unsigned int sdma_queue_count;
168 unsigned int total_queue_count;
169 unsigned int next_pipe_to_allocate;
170 unsigned int *allocated_queues;
171 unsigned int sdma_bitmap;
172 unsigned int vmid_bitmap;
173 uint64_t pipelines_addr;
174 struct kfd_mem_obj *pipeline_mem;
175 uint64_t fence_gpu_addr;
176 unsigned int *fence_addr;
177 struct kfd_mem_obj *fence_mem;
178 bool active_runlist;
179};
180
181void device_queue_manager_init_cik(struct device_queue_manager_asic_ops *ops);
182void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops);
183void program_sh_mem_settings(struct device_queue_manager *dqm,
184 struct qcm_process_device *qpd);
185int init_pipelines(struct device_queue_manager *dqm,
186 unsigned int pipes_num, unsigned int first_pipe);
187unsigned int get_first_pipe(struct device_queue_manager *dqm);
188unsigned int get_pipes_num(struct device_queue_manager *dqm);
189
190static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd)
191{
192 return (pdd->lds_base >> 16) & 0xFF;
193}
194
195static inline unsigned int
196get_sh_mem_bases_nybble_64(struct kfd_process_device *pdd)
197{
198 return (pdd->lds_base >> 60) & 0x0E;
199}
200
201#endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */