android_kernel_xiaomi_sm8350/include/asm-ppc/timex.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

41 lines
691 B
C

/*
* include/asm-ppc/timex.h
*
* ppc architecture timex specifications
*/
#ifdef __KERNEL__
#ifndef _ASMppc_TIMEX_H
#define _ASMppc_TIMEX_H
#include <linux/config.h>
#include <asm/cputable.h>
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
typedef unsigned long cycles_t;
/*
* For the "cycle" counter we use the timebase lower half.
* Currently only used on SMP.
*/
static inline cycles_t get_cycles(void)
{
cycles_t ret = 0;
__asm__ __volatile__(
"98: mftb %0\n"
"99:\n"
".section __ftr_fixup,\"a\"\n"
" .long %1\n"
" .long 0\n"
" .long 98b\n"
" .long 99b\n"
".previous"
: "=r" (ret) : "i" (CPU_FTR_601));
return ret;
}
#endif
#endif /* __KERNEL__ */