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[debian/gnuradio] / gcell / ibm / sync / spu_source / cond_broadcast.h
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41 #ifndef _SPU_COND_BROADCAST_H_
42 #define _SPU_COND_BROADCAST_H_
43
44 #include "sync_utils.h"
45 #include "cond.h"
46 #include <spu_mfcio.h>
47
48 /**
49  * cond_broadcast - indicate that a condition is true.
50  * @cond: handle to effective address of condition variable.
51  */
52 static __inline void _cond_broadcast(cond_ea_t cond)
53 {
54     char _tmp[256];                                     
55     char *tmp = (char *) ALIGN(_tmp, 128);              
56     volatile unsigned short *buf = (volatile unsigned short *) &tmp[0];       
57     unsigned int size = 128, tagid = 0;                          
58     u32 offset;                                         
59     addr64 ea64;          
60
61     ea64.ull = ALIGN128_EA(cond);
62     offset = OFFSET128_EA_U16(cond);
63     MFC_DMA(buf, ea64, size, tagid, MFC_GETLLAR_CMD);
64     spu_readch(MFC_RdAtomicStat);
65
66     /* set the condition variable to the count. So that
67      * all the threads  */
68     buf[offset] = buf[offset + 1];
69     MFC_DMA(buf, ea64, size, tagid, MFC_PUTLLUC_CMD);
70     spu_readch(MFC_RdAtomicStat);
71 }
72
73 #endif /* _SPU_COND_BROADCAST_H_ */