| /* |
| * 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 unsigned long long get_clock (void) |
| { |
| unsigned long long clk; |
| |
| #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) |
| asm volatile("stck %0" : "=Q" (clk) : : "cc"); |
| #else /* __GNUC__ */ |
| asm volatile("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc"); |
| #endif /* __GNUC__ */ |
| return clk; |
| } |
| |
| static inline cycles_t get_cycles(void) |
| { |
| return (cycles_t) get_clock() >> 2; |
| } |
| |
| #endif |
