[rtl] Only need to detect raw when reading.

chipsalliance · May 15, 2024 · d09c4d6 · d09c4d6
1 parent caa3471
commit d09c4d6
Showing 1 changed file with 1 addition and 10 deletions.
diff --git a/t1/src/vrf/ChainingCheck.scala b/t1/src/vrf/ChainingCheck.scala
@@ -48,14 +48,5 @@ class ChainingCheck(val parameter: VRFParam) extends Module {
   val vdGroup: UInt = readRecord.vd.bits(4, 3)
 
   val raw: Bool = record.bits.vd.valid && (read.vs(4, 3) === record.bits.vd.bits(4, 3)) && hitElement
-  val waw: Bool = readRecord.vd.valid && record.bits.vd.valid &&
-    readRecord.vd.bits(4, 3) === record.bits.vd.bits(4, 3) &&
-    writeHitElement
-  val warSource1: Bool = (vdGroup === record.bits.vs1.bits(4, 3)) && record.bits.vs1.valid
-  // Only index type will read vs2
-  val warSource2: Bool = vdGroup === record.bits.vs2(4, 3) && (!record.bits.ls || record.bits.indexType)
-  // store or ma need read vd
-  val warVD: Bool = (vdGroup === record.bits.vd.bits(4, 3)) && (record.bits.ma || record.bits.st)
-  val war: Bool = readRecord.vd.valid && (warSource1 || warSource2 || warVD) && writeHitElement
-  checkResult := !((!older && (waw || raw || war)) && !sameInst && recordValid)
+  checkResult := !(!older && raw && !sameInst && recordValid)
 }