aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/timex.h
blob: 6047402b0a4dbbf0e2f4710eca5eeca4915a9ad2 (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
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_TIMEX_H
#define _ASM_POWERPC_TIMEX_H

#ifdef __KERNEL__

/*
 * PowerPC architecture timex specifications
 */

#include <asm/cputable.h>
#include <asm/reg.h>

#define CLOCK_TICK_RATE	1024000 /* Underlying HZ */

typedef unsigned long cycles_t;

static inline cycles_t get_cycles(void)
{
	if (IS_ENABLED(CONFIG_PPC_BOOK3S_601))
		return 0;

	return mftb();
}

#endif	/* __KERNEL__ */
#endif	/* _ASM_POWERPC_TIMEX_H */