mirror of https://gitee.com/openkylin/linux.git
35 lines
670 B
C
35 lines
670 B
C
|
/*
|
||
|
|
* include/asm-s390/timex.h
|
||
|
|
*
|
||
|
|
* S390 version
|
||
|
|
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
|
||
|
|
*
|
||
|
|
* Derived from "include/asm-i386/timex.h"
|
||
|
|
* Copyright (C) 1992, Linus Torvalds
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _ASM_S390_TIMEX_H
|
||
|
|
#define _ASM_S390_TIMEX_H
|
||
|
|
|
||
|
|
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
|
||
|
|
|
||
|
|
typedef unsigned long long cycles_t;
|
||
|
|
|
||
|
|
static inline cycles_t get_cycles(void)
|
||
|
|
{
|
||
|
|
cycles_t cycles;
|
||
|
|
|
||
|
|
__asm__("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc");
|
||
|
|
return cycles >> 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned long long get_clock (void)
|
||
|
|
{
|
||
|
|
unsigned long long clk;
|
||
|
|
|
||
|
|
__asm__("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
|
||
|
|
return clk;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|