tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*
2 * include/asm-s390/timex.h
3 *
4 * S390 version
5 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
6 *
7 * Derived from "include/asm-i386/timex.h"
8 * Copyright (C) 1992, Linus Torvalds
9 */
10
11#ifndef _ASM_S390_TIMEX_H
12#define _ASM_S390_TIMEX_H
13
14#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
15
16typedef unsigned long long cycles_t;
17
18static inline cycles_t get_cycles(void)
19{
20 cycles_t cycles;
21
22 __asm__("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc");
23 return cycles >> 2;
24}
25
26static inline unsigned long long get_clock (void)
27{
28 unsigned long long clk;
29
30 __asm__("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
31 return clk;
32}
33
34#endif