X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-s390%2Ftimex.h;h=d744c3d62de58dc7d31de475507f6775689d5f3d;hb=13c48c490208d9e70d8d66d56f96c5054db69af7;hp=4df4a41029a32d22bb5c5ce618c8743637f2db77;hpb=5a3e3b2230980cf2ce6e5e56b816dde19b993939;p=linux-2.6 diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h index 4df4a41029..d744c3d62d 100644 --- a/include/asm-s390/timex.h +++ b/include/asm-s390/timex.h @@ -11,6 +11,41 @@ #ifndef _ASM_S390_TIMEX_H #define _ASM_S390_TIMEX_H +/* Inline functions for clock register access. */ +static inline int set_clock(__u64 time) +{ + int cc; + + asm volatile( + " sck 0(%2)\n" + " ipm %0\n" + " srl %0,28\n" + : "=d" (cc) : "m" (time), "a" (&time) : "cc"); + return cc; +} + +static inline int store_clock(__u64 *time) +{ + int cc; + + asm volatile( + " stck 0(%2)\n" + " ipm %0\n" + " srl %0,28\n" + : "=d" (cc), "=m" (*time) : "a" (time) : "cc"); + return cc; +} + +static inline void set_clock_comparator(__u64 time) +{ + asm volatile("sckc 0(%1)" : : "m" (time), "a" (&time)); +} + +static inline void store_clock_comparator(__u64 *time) +{ + asm volatile("stckc 0(%1)" : "=m" (*time) : "a" (time)); +} + #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ typedef unsigned long long cycles_t; @@ -27,9 +62,27 @@ static inline unsigned long long get_clock (void) return clk; } +static inline unsigned long long get_clock_xt(void) +{ + unsigned char clk[16]; + +#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) + asm volatile("stcke %0" : "=Q" (clk) : : "cc"); +#else /* __GNUC__ */ + asm volatile("stcke 0(%1)" : "=m" (clk) + : "a" (clk) : "cc"); +#endif /* __GNUC__ */ + + return *((unsigned long long *)&clk[1]); +} + static inline cycles_t get_cycles(void) { return (cycles_t) get_clock() >> 2; } +int get_sync_clock(unsigned long long *clock); +void init_cpu_timer(void); +unsigned long long monotonic_clock(void); + #endif