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/* atops.h: Atomic SPARC operations.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef _SPARC_ATOPS_H
#define _SPARC_ATOPS_H
#include <linux/config.h>
#ifdef CONFIG_SMP
extern __inline__ __volatile__ unsigned char ldstub(volatile unsigned char *lock)
{
volatile unsigned char retval;
__asm__ __volatile__("ldstub [%1], %0\n\t" :
"=&r" (retval) :
"r" (lock));
return retval;
}
#endif
#endif
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