blob: d3a424432556ef345233ada1ba8a76cda08219b2 (
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
|
/* Copyright (c) 2016-2018, Linaro Limited
* Copyright (c) 2021, Nokia
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef ODP_ARCH_CPU_INLINES_H_
#define ODP_ARCH_CPU_INLINES_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
static inline void _odp_cpu_pause(void)
{
__asm__ __volatile__ ("nop");
__asm__ __volatile__ ("nop");
__asm__ __volatile__ ("nop");
__asm__ __volatile__ ("nop");
}
uint64_t _odp_cpu_cycles(void)
{
#define CVMX_TMP_STR(x) CVMX_TMP_STR2(x)
#define CVMX_TMP_STR2(x) #x
uint64_t cycle;
__asm__ __volatile__ ("rdhwr %[rt],$" CVMX_TMP_STR(31) :
[rt] "=d" (cycle) : : "memory");
return cycle;
}
uint64_t _odp_cpu_cycles_max(void)
{
return UINT64_MAX;
}
uint64_t _odp_cpu_cycles_resolution(void)
{
return 1;
}
int _odp_cpu_cycles_init_global(void)
{
return 0;
}
#ifdef __cplusplus
}
#endif
#endif
|