Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 16 | typedef unsigned long long cycles_t; |
| 17 | |
| 18 | static 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 | |
| 26 | static 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 |