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17 May 2024, 11:00:25 UTC
Revision f56df2f4db6e4af87fb8e941cff69f4501a111df authored by Linus Torvalds on 31 January 2007, 03:42:57 UTC, committed by Linus Torvalds on 31 January 2007, 03:42:57 UTC 
Linux 2.6.20-rc7
 
Ok, so I said there wouldn't be another -rc.

I lied.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 4222721
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Tip revision: f56df2f4db6e4af87fb8e941cff69f4501a111df authored by Linus Torvalds on 31 January 2007, 03:42:57 UTC
Linux 2.6.20-rc7
Tip revision: f56df2f
timex.h 
#ifndef _ASM_POWERPC_TIMEX_H
#define _ASM_POWERPC_TIMEX_H

#ifdef __KERNEL__

/*
 * PowerPC architecture timex specifications
 */

#include <asm/cputable.h>
#include <asm/reg.h>

#define CLOCK_TICK_RATE	1024000 /* Underlying HZ */

typedef unsigned long cycles_t;

static inline cycles_t get_cycles(void)
{
#ifdef __powerpc64__
	return mftb();
#else
	cycles_t ret;

	/*
	 * For the "cycle" counter we use the timebase lower half.
	 * Currently only used on SMP.
	 */

	ret = 0;

	__asm__ __volatile__(
		"97:	mftb %0\n"
		"99:\n"
		".section __ftr_fixup,\"a\"\n"
		".align 2\n"
		"98:\n"
		"	.long %1\n"
		"	.long 0\n"
		"	.long 97b-98b\n"
		"	.long 99b-98b\n"
		".previous"
		: "=r" (ret) : "i" (CPU_FTR_601));
	return ret;
#endif
}

#endif	/* __KERNEL__ */
#endif	/* _ASM_POWERPC_TIMEX_H */
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