blob: e8298887938233e1fb44b36b389dfb8f92dad4c5 (
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
|
#include <string.h>
#include <stdbool.h>
#include "compel-cpu.h"
#include "common/bitops.h"
#include "log.h"
#undef LOG_PREFIX
#define LOG_PREFIX "cpu: "
static compel_cpuinfo_t rt_info;
static bool rt_info_done = false;
void compel_set_cpu_cap(compel_cpuinfo_t *info, unsigned int feature) { }
void compel_clear_cpu_cap(compel_cpuinfo_t *info, unsigned int feature) { }
int compel_test_cpu_cap(compel_cpuinfo_t *info, unsigned int feature) { return 0; }
int compel_test_fpu_cap(compel_cpuinfo_t *info, unsigned int feature) { return 0; }
int compel_cpuid(compel_cpuinfo_t *info) { return 0; }
bool compel_cpu_has_feature(unsigned int feature)
{
if (!rt_info_done) {
compel_cpuid(&rt_info);
rt_info_done = true;
}
return compel_test_cpu_cap(&rt_info, feature);
}
bool compel_fpu_has_feature(unsigned int feature)
{
if (!rt_info_done) {
compel_cpuid(&rt_info);
rt_info_done = true;
}
return compel_test_fpu_cap(&rt_info, feature);
}
uint32_t compel_fpu_feature_size(unsigned int feature)
{
if (!rt_info_done) {
compel_cpuid(&rt_info);
rt_info_done = true;
}
return 0;
}
void compel_cpu_clear_feature(unsigned int feature)
{
if (!rt_info_done) {
compel_cpuid(&rt_info);
rt_info_done = true;
}
return compel_clear_cpu_cap(&rt_info, feature);
}
void compel_cpu_copy_cpuinfo(compel_cpuinfo_t *c)
{
if (!rt_info_done) {
compel_cpuid(&rt_info);
rt_info_done = true;
}
memcpy(c, &rt_info, sizeof(rt_info));
}
|