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File: [Development] / linux-2.6-xfs / include / asm-cris / arch-v32 / delay.h (download)

Revision 1.3, Tue Feb 26 16:44:40 2008 UTC (9 years, 7 months ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.2: +10 -0 lines 

Merge up to 2.6.25-rc3
Merge of 2.6.x-xfs-melb:linux:30555a by kenmcd.

#ifndef _ASM_CRIS_ARCH_DELAY_H
#define _ASM_CRIS_ARCH_DELAY_H

extern void cris_delay10ns(u32 n10ns);
#define udelay(u) cris_delay10ns((u)*100)
#define ndelay(n) cris_delay10ns(((n)+9)/10)

/*
 * Not used anymore for udelay or ndelay.  Referenced by
 * e.g. init/calibrate.c.  All other references are likely bugs;
 * should be replaced by mdelay, udelay or ndelay.
 */

static inline void
__delay(int loops)
{
	__asm__ __volatile__ (
		"move.d %0, $r9\n\t"
		"beq 2f\n\t"
		"subq 1, $r9\n\t"
		"1:\n\t"
		"bne 1b\n\t"
		"subq 1, $r9\n"
		"2:"
		: : "g" (loops) : "r9");
}

#endif /* _ASM_CRIS_ARCH_DELAY_H */