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
|
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gem-objects.h"
/* /sys/kernel/debug/dri/0/i915_gem_objects:
* 46 objects, 20107264 bytes
* 42 [42] objects, 15863808 [15863808] bytes in gtt
* 0 [0] active objects, 0 [0] bytes
* 42 [42] inactive objects, 15863808 [15863808] bytes
* 0 unbound objects, 0 bytes
* 3 purgeable objects, 4456448 bytes
* 30 pinned mappable objects, 3821568 bytes
* 1 fault mappable objects, 3145728 bytes
* 2145386496 [536870912] gtt total
*
* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound)
*/
int gem_objects_init(struct gem_objects *obj)
{
char buf[8192], *b;
int fd, len;
memset(obj, 0, sizeof(*obj));
fd = open("/sys/kernel/debug/dri/0/i915_gem_objects", 0);
if (fd < 0)
return errno;
len = read(fd, buf, sizeof(buf)-1);
close(fd);
if (len < 0)
return EIO;
b = strstr(buf, "gtt total");
if (b == NULL)
return EIO;
while (*b != '\n')
b--;
sscanf(b, "%ld [%ld]",
&obj->max_gtt, &obj->max_aperture);
return 0;
}
static void insert_sorted(struct gem_objects *obj,
struct gem_objects_comm *comm)
{
struct gem_objects_comm *next, **prev;
for (prev = &obj->comm; (next = *prev) != NULL; prev = &next->next)
if (comm->bytes > next->bytes)
break;
comm->next = *prev;
*prev = comm;
}
int gem_objects_update(struct gem_objects *obj)
{
char buf[8192], *b;
struct gem_objects_comm *comm;
struct gem_objects_comm *freed;
int fd, len, ret;
freed = obj->comm;
obj->comm = NULL;
fd = open("/sys/kernel/debug/dri/0/i915_gem_objects", 0);
if (fd < 0) {
ret = errno;
goto done;
}
len = read(fd, buf, sizeof(buf)-1);
close(fd);
if (len < 0) {
ret = EIO;
goto done;
}
buf[len] = '\0';
while (buf[--len] == '\n')
buf[len] = '\0';
b = buf;
sscanf(b, "%d objects, %ld bytes",
&obj->total_count, &obj->total_bytes);
b = strchr(b, '\n');
sscanf(b, "%*d [%*d] objects, %ld [%ld] bytes in gtt",
&obj->total_gtt, &obj->total_aperture);
ret = 0;
b = strchr(b, ':');
if (b == NULL)
goto done;
while (*b != '\n')
b--;
do {
comm = freed;
if (comm)
freed = comm->next;
else
comm = malloc(sizeof(*comm));
if (comm == NULL)
break;
/* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound) */
sscanf(++b, "%256s %u objects, %lu bytes",
comm->name, &comm->count, &comm->bytes);
insert_sorted(obj, comm);
} while ((b = strchr(b, '\n')) != NULL);
done:
while (freed) {
comm = freed;
freed = comm->next;
free(comm);
}
return ret;
}
|
