From dd56fdf23dfa0127d512b73d4238dbd2b5a7c1eb Mon Sep 17 00:00:00 2001 From: "jdl@freescale.com" Date: Wed, 7 Sep 2005 15:59:48 -0500 Subject: [PATCH] powerpc: Merge a few more include files Merge a few asm-ppc and asm-ppc64 header files. Note: the merge of setup.h intentionally does not carry forward the m68k cruft. That means this patch continues to break the already broken amiga on the ppc32. Signed-off-by: Jon Loeliger Signed-off-by: Kumar Gala Signed-off-by: Paul Mackerras --- include/asm-powerpc/timex.h | 49 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 include/asm-powerpc/timex.h (limited to 'include/asm-powerpc/timex.h') diff --git a/include/asm-powerpc/timex.h b/include/asm-powerpc/timex.h new file mode 100644 index 000000000000..51c5b316be55 --- /dev/null +++ b/include/asm-powerpc/timex.h @@ -0,0 +1,49 @@ +#ifndef _ASM_POWERPC_TIMEX_H +#define _ASM_POWERPC_TIMEX_H + +#ifdef __KERNEL__ + +/* + * PowerPC architecture timex specifications + */ + +#include +#include + +#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ + +typedef unsigned long cycles_t; + +static inline cycles_t get_cycles(void) +{ + cycles_t ret; + +#ifdef __powerpc64__ + + __asm__ __volatile__("mftb %0" : "=r" (ret) : ); + +#else + /* + * For the "cycle" counter we use the timebase lower half. + * Currently only used on SMP. + */ + + 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)); +#endif + + return ret; +} + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_TIMEX_H */ -- cgit v1.2.3