write_unlock.h

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#ifndef _SPU_WRITE_UNLOCK_H_
#define _SPU_WRITE_UNLOCK_H_

#include "sync_utils.h"
#include "mutex.h"
#include <spu_mfcio.h>

/**
 * write_unlock - release writer lock.
 * @rwlock: handle to effective address of lock variable.
 *
 * Release a single writer lock.
 */
static __inline void _write_unlock(eaddr_t rwlock)
{
    DECL_MUTEX_VARS();

    ea64.ull = ALIGN128_EA(rwlock);
    offset = OFFSET128_EA_U32(rwlock);
    MFC_DMA(buf, ea64, size, tagid, MFC_GETLLAR_CMD);
    spu_readch(MFC_RdAtomicStat);

    buf[offset] = 0;
    MFC_DMA(buf, ea64, size, tagid, MFC_PUTLLUC_CMD);
    spu_readch(MFC_RdAtomicStat);
}


#endif /* _SPU_WRITE_UNLOCK_H_ */