aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/time.h
blob: 3e724eef7ac468f118bb8c7c95edac31577cc739 (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
#ifndef ASM_X86__TIME_H
#define ASM_X86__TIME_H

extern void hpet_time_init(void);

#include <asm/mc146818rtc.h>
#ifdef CONFIG_X86_32
#include <linux/efi.h>

static inline unsigned long native_get_wallclock(void)
{
	unsigned long retval;

	if (efi_enabled)
		retval = efi_get_time();
	else
		retval = mach_get_cmos_time();

	return retval;
}

static inline int native_set_wallclock(unsigned long nowtime)
{
	int retval;

	if (efi_enabled)
		retval = efi_set_rtc_mmss(nowtime);
	else
		retval = mach_set_rtc_mmss(nowtime);

	return retval;
}

#else
extern void native_time_init_hook(void);

static inline unsigned long native_get_wallclock(void)
{
	return mach_get_cmos_time();
}

static inline int native_set_wallclock(unsigned long nowtime)
{
	return mach_set_rtc_mmss(nowtime);
}

#endif

extern void time_init(void);

#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */

#define get_wallclock() native_get_wallclock()
#define set_wallclock(x) native_set_wallclock(x)
#define choose_time_init() hpet_time_init

#endif /* CONFIG_PARAVIRT */

extern unsigned long __init calibrate_cpu(void);

#endif /* ASM_X86__TIME_H */