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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-sparc/] [atops.h] - Diff between revs 1633 and 1765

Rev 1633	Rev 1765
`/* atops.h: Atomic SPARC operations.`	`/* atops.h: Atomic SPARC operations.`
`*`	`*`
`* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)`	`* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)`
`*/`	`*/`
`#ifndef _SPARC_ATOPS_H`	`#ifndef _SPARC_ATOPS_H`
`#define _SPARC_ATOPS_H`	`#define _SPARC_ATOPS_H`

`#ifdef __SMP__`	`#ifdef __SMP__`

`extern __inline volatile unsigned char ldstub(volatile unsigned char *lock)`	`extern __inline volatile unsigned char ldstub(volatile unsigned char *lock)`
`{`	`{`
`volatile unsigned char retval;`	`volatile unsigned char retval;`

`__asm__ __volatile__("ldstub [%1], %0\n\t" :`	`__asm__ __volatile__("ldstub [%1], %0\n\t" :`
`"=&r" (retval) :`	`"=&r" (retval) :`
`"r" (lock));`	`"r" (lock));`
`return retval;`	`return retval;`
`}`	`}`

`#endif`	`#endif`

`#endif`	`#endif`