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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-sparc/] [delay.h] - Diff between revs 1765 and 1782

Rev 1765	Rev 1782
`/* $Id: delay.h,v 1.1 2005-12-20 11:32:11 jcastillo Exp $`	`/* $Id: delay.h,v 1.1 2005-12-20 11:32:11 jcastillo Exp $`
`* delay.h: Linux delay routines on the Sparc.`	`* delay.h: Linux delay routines on the Sparc.`
`*`	`*`
`* Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu).`	`* Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu).`
`*/`	`*/`

`#ifndef __SPARC_DELAY_H`	`#ifndef __SPARC_DELAY_H`
`#define __SPARC_DELAY_H`	`#define __SPARC_DELAY_H`

`extern unsigned long loops_per_sec;`	`extern unsigned long loops_per_sec;`

`extern __inline__ void __delay(unsigned long loops)`	`extern __inline__ void __delay(unsigned long loops)`
`{`	`{`
`__asm__ __volatile__("cmp %0, 0\n\t"`	`__asm__ __volatile__("cmp %0, 0\n\t"`
`"1: bne 1b\n\t"`	`"1: bne 1b\n\t"`
`"subcc %0, 1, %0\n" :`	`"subcc %0, 1, %0\n" :`
`"=&r" (loops) :`	`"=&r" (loops) :`
`"0" (loops));`	`"0" (loops));`
`}`	`}`

`/* This is too messy with inline asm on the Sparc. */`	`/* This is too messy with inline asm on the Sparc. */`
`extern void udelay(unsigned long usecs);`	`extern void udelay(unsigned long usecs);`

`/* calibrate_delay() wants this... */`	`/* calibrate_delay() wants this... */`
`#define muldiv(a, b, c) (((a)*(b))/(c))`	`#define muldiv(a, b, c) (((a)*(b))/(c))`

`#endif /* defined(__SPARC_DELAY_H) */`	`#endif /* defined(__SPARC_DELAY_H) */`