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/* PROLOG END TAG zYx                                              */
#ifndef _SPU_ATOMIC_SET_H_
#define _SPU_ATOMIC_SET_H_

#include <sync_utils.h>
#include <atomic.h>

/**
 * atomic_set - atomically set a counter in system memory.
 * @v: handle to effective address of counter.
 * 
 * Atomically set a counter to a given value. The only 
 * restriction is that @v must be word aligned.
 *
 * This routine implements the "fetch and store" 
 * primitive that is described in "Book I PowerPC User 
 * Instruction Set Architecture", but uses MFC lock line
 * reservation operations instead of lwarx/stwcx. 
 *
 * Returns the previous value from system memory.
 */
static __inline void _atomic_set(atomic_ea_t v, int val)
{
    int ret_val;
    ATOMIC_OP(v, val, 1, ret_val);
}


#endif /* _SPU_ATOMIC_SET_H_ */