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Linux Cross Reference
Linux/include/asm-sparc64/timex.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  1 /*
  2  * linux/include/asm-sparc64/timex.h
  3  *
  4  * sparc64 architecture timex specifications
  5  */
  6 #ifndef _ASMsparc64_TIMEX_H
  7 #define _ASMsparc64_TIMEX_H
  8 
  9 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
 10 #define CLOCK_TICK_FACTOR       20      /* Factor of both 1000000 and CLOCK_TICK_RATE */
 11 #define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \
 12         (1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \
 13                 << (SHIFT_SCALE-SHIFT_HZ)) / HZ)
 14 
 15 /* Getting on the cycle counter on sparc64. */
 16 typedef unsigned long cycles_t;
 17 extern cycles_t cacheflush_time;
 18 #define get_cycles() \
 19 ({      cycles_t ret; \
 20         __asm__("rd     %%tick, %0" : "=r" (ret)); \
 21         ret; \
 22 })
 23 
 24 #endif
 25
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