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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
* Copyright (C) 2010-2011 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "mali_kernel_common.h"
#include "mali_osk.h"
#include "mali_osk_mali.h"
#include "mali_ukk.h"
#include "mali_timestamp.h"
#define MALI_PROFILING_MAX_BUFFER_ENTRIES 1048576
typedef struct mali_profiling_entry
{
u64 timestamp;
u32 event_id;
u32 data[5];
} mali_profiling_entry;
typedef enum mali_profiling_state
{
MALI_PROFILING_STATE_UNINITIALIZED,
MALI_PROFILING_STATE_IDLE,
MALI_PROFILING_STATE_RUNNING,
MALI_PROFILING_STATE_RETURN,
} mali_profiling_state;
static _mali_osk_lock_t *lock = NULL;
static mali_profiling_state prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
static mali_profiling_entry* profile_entries = NULL;
static u32 profile_entry_count = 0;
static _mali_osk_atomic_t profile_insert_index;
static _mali_osk_atomic_t profile_entries_written;
_mali_osk_errcode_t _mali_profiling_init(void)
{
profile_entries = NULL;
profile_entry_count = 0;
_mali_osk_atomic_init(&profile_insert_index, 0);
_mali_osk_atomic_init(&profile_entries_written, 0);
lock = _mali_osk_lock_init( _MALI_OSK_LOCKFLAG_SPINLOCK | _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE, 0, 0 );
if (NULL == lock)
{
return _MALI_OSK_ERR_FAULT;
}
prof_state = MALI_PROFILING_STATE_IDLE;
return _MALI_OSK_ERR_OK;
}
void _mali_profiling_term(void)
{
prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
/* wait for all elements to be completely inserted into array */
while (_mali_osk_atomic_read(&profile_insert_index) != _mali_osk_atomic_read(&profile_entries_written))
{
/* do nothing */;
}
if (NULL != profile_entries)
{
_mali_osk_free(profile_entries);
profile_entries = NULL;
}
if (NULL != lock)
{
_mali_osk_lock_term(lock);
lock = NULL;
}
}
inline _mali_osk_errcode_t _mali_profiling_add_event(u32 event_id, u32 data0, u32 data1, u32 data2, u32 data3, u32 data4)
{
u32 cur_index = _mali_osk_atomic_inc_return(&profile_insert_index) - 1;
if (prof_state != MALI_PROFILING_STATE_RUNNING || cur_index >= profile_entry_count)
{
/*
* Not in recording mode, or buffer is full
* Decrement index again, and early out
*/
_mali_osk_atomic_dec(&profile_insert_index);
return _MALI_OSK_ERR_FAULT;
}
profile_entries[cur_index].timestamp = _mali_timestamp_get();
profile_entries[cur_index].event_id = event_id;
profile_entries[cur_index].data[0] = data0;
profile_entries[cur_index].data[1] = data1;
profile_entries[cur_index].data[2] = data2;
profile_entries[cur_index].data[3] = data3;
profile_entries[cur_index].data[4] = data4;
_mali_osk_atomic_inc(&profile_entries_written);
return _MALI_OSK_ERR_OK;
}
_mali_osk_errcode_t _mali_ukk_profiling_start(_mali_uk_profiling_start_s *args)
{
_mali_osk_errcode_t ret;
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (prof_state != MALI_PROFILING_STATE_IDLE)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
if (args->limit > MALI_PROFILING_MAX_BUFFER_ENTRIES)
{
args->limit = MALI_PROFILING_MAX_BUFFER_ENTRIES;
}
profile_entries = _mali_osk_malloc(args->limit * sizeof(mali_profiling_entry));
profile_entry_count = args->limit;
if (NULL == profile_entries)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_NOMEM;
}
ret = _mali_timestamp_reset();
if (ret == _MALI_OSK_ERR_OK)
{
prof_state = MALI_PROFILING_STATE_RUNNING;
}
else
{
_mali_osk_free(profile_entries);
profile_entries = NULL;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return ret;
}
_mali_osk_errcode_t _mali_ukk_profiling_add_event(_mali_uk_profiling_add_event_s *args)
{
/* Always add process and thread identificator in the first two data elements for events from user space */
return _mali_profiling_add_event(args->event_id, _mali_osk_get_pid(), _mali_osk_get_tid(), args->data[2], args->data[3], args->data[4]);
}
_mali_osk_errcode_t _mali_ukk_profiling_stop(_mali_uk_profiling_stop_s *args)
{
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (prof_state != MALI_PROFILING_STATE_RUNNING)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
/* go into return state (user to retreive events), no more events will be added after this */
prof_state = MALI_PROFILING_STATE_RETURN;
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
/* wait for all elements to be completely inserted into array */
while (_mali_osk_atomic_read(&profile_insert_index) != _mali_osk_atomic_read(&profile_entries_written))
{
/* do nothing */;
}
args->count = _mali_osk_atomic_read(&profile_insert_index);
return _MALI_OSK_ERR_OK;
}
_mali_osk_errcode_t _mali_ukk_profiling_get_event(_mali_uk_profiling_get_event_s *args)
{
u32 index = args->index;
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (prof_state != MALI_PROFILING_STATE_RETURN)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
if (index >= _mali_osk_atomic_read(&profile_entries_written))
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_FAULT;
}
args->timestamp = profile_entries[index].timestamp;
args->event_id = profile_entries[index].event_id;
args->data[0] = profile_entries[index].data[0];
args->data[1] = profile_entries[index].data[1];
args->data[2] = profile_entries[index].data[2];
args->data[3] = profile_entries[index].data[3];
args->data[4] = profile_entries[index].data[4];
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_OK;
}
_mali_osk_errcode_t _mali_ukk_profiling_clear(_mali_uk_profiling_clear_s *args)
{
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (prof_state != MALI_PROFILING_STATE_RETURN)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
prof_state = MALI_PROFILING_STATE_IDLE;
profile_entry_count = 0;
_mali_osk_atomic_init(&profile_insert_index, 0);
_mali_osk_atomic_init(&profile_entries_written, 0);
if (NULL != profile_entries)
{
_mali_osk_free(profile_entries);
profile_entries = NULL;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_OK;
}
|
