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/* PROLOG END TAG zYx                                              */
/*
 * sync_utils.h - SPU sync-library internal utilities.
 *
 * These utilities are used internally by the SPU sync library.
 */
#ifndef __SPU_SYNC_UTILS_H__
#define __SPU_SYNC_UTILS_H__

#include <spu_intrinsics.h>

typedef unsigned int u32;
typedef signed int s32;
typedef unsigned long long u64;
typedef unsigned long long eaddr_t;


typedef union {
    u64 ull;  
    u32 ui[2];
} addr64;

#ifndef likely
#define likely(_c)     \
    __builtin_expect((_c), 1)
#define unlikely(_c)    \
    __builtin_expect((_c), 0)
#endif

#define ALLOCA(_nbytes, _size)    \
    alloca((_nbytes) + (_size)-1)

#define ALIGN(_ptr, _size)       \
    ((((u32) _ptr) + (_size)-1) & ~((_size)-1))

#define ALIGN128_EA(_ull)	\
    ((_ull) & ~(127ULL))
/*
#define OFFSET128_EA(_ull, _type) \
    (((_ull) & 127ULL) / sizeof(_type))
    */

#define OFFSET128_EA_U32(_ull) \
    (((_ull) & 127ULL) >> 2)

#define OFFSET128_EA_U16(_ull) \
    (((_ull) & 127ULL) >> 1)

#define MFC_DMA(_ls, _ea, _sz, _tg, _cmd) \
    spu_mfcdma64(_ls, _ea.ui[0], _ea.ui[1], _sz, _tg, _cmd)

#define MFC_SYNC() {				\
    u32 _tagid = 0;				\
    spu_writech(mfc_tag_id, _tagid);		\
    spu_writech(mfc_cmd_queue, MFC_SYNC_CMD);	\
}

#define MFC_EIEIO() {				\
    u32 _tagid = 0;				\
    spu_writech(mfc_tag_id, _tagid);		\
    spu_writech(mfc_cmd_queue, MFC_EIEIO_CMD);	\
}

#endif /* __SPU_SYNC_UTILS_H__ */