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-rw-r--r--src/cpu/o3/lsq_unit.hh13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/cpu/o3/lsq_unit.hh b/src/cpu/o3/lsq_unit.hh
index 693bee82c..af926759c 100644
--- a/src/cpu/o3/lsq_unit.hh
+++ b/src/cpu/o3/lsq_unit.hh
@@ -115,12 +115,20 @@ class LSQUnit {
/** Inserts a store instruction. */
void insertStore(DynInstPtr &store_inst);
- /** Check for ordering violations in the LSQ
+ /** Check for ordering violations in the LSQ. For a store squash if we
+ * ever find a conflicting load. For a load, only squash if we
+ * an external snoop invalidate has been seen for that load address
* @param load_idx index to start checking at
* @param inst the instruction to check
*/
Fault checkViolations(int load_idx, DynInstPtr &inst);
+ /** Check if an incoming invalidate hits in the lsq on a load
+ * that might have issued out of order wrt another load beacuse
+ * of the intermediate invalidate.
+ */
+ void checkSnoop(PacketPtr pkt);
+
/** Executes a load instruction. */
Fault executeLoad(DynInstPtr &inst);
@@ -417,6 +425,9 @@ class LSQUnit {
//list<InstSeqNum> mshrSeqNums;
+ /** Address Mask for a cache block (e.g. ~(cache_block_size-1)) */
+ Addr cacheBlockMask;
+
/** Wire to read information from the issue stage time queue. */
typename TimeBuffer<IssueStruct>::wire fromIssue;