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-rw-r--r--src/cpu/pred/btb.hh7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/cpu/pred/btb.hh b/src/cpu/pred/btb.hh
index 3a773e40d..209bbdb49 100644
--- a/src/cpu/pred/btb.hh
+++ b/src/cpu/pred/btb.hh
@@ -66,7 +66,7 @@ class DefaultBTB
* @param instShiftAmt Offset amount for instructions to ignore alignment.
*/
DefaultBTB(unsigned numEntries, unsigned tagBits,
- unsigned instShiftAmt);
+ unsigned instShiftAmt, unsigned numThreads);
void reset();
@@ -97,7 +97,7 @@ class DefaultBTB
* @param inst_PC The branch to look up.
* @return Returns the index into the BTB.
*/
- inline unsigned getIndex(Addr instPC);
+ inline unsigned getIndex(Addr instPC, ThreadID tid);
/** Returns the tag bits of a given address.
* @param inst_PC The branch's address.
@@ -125,6 +125,9 @@ class DefaultBTB
/** Number of bits to shift PC when calculating tag. */
unsigned tagShiftAmt;
+
+ /** Log2 NumThreads used for hashing threadid */
+ unsigned log2NumThreads;
};
#endif // __CPU_PRED_BTB_HH__