Support v-impls which issue vconfig to backend

chipsalliance · Mar 20, 2024 · 0b2d940 · 0b2d940
1 parent 527560a
commit 0b2d940
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/src/main/scala/rocket/RocketCore.scala b/src/main/scala/rocket/RocketCore.scala
@@ -1087,7 +1087,7 @@ class Rocket(tile: RocketTile)(implicit p: Parameters) extends CoreModule()(p)
   io.fpu.v_sew := csr.io.vector.map(_.vconfig.vtype.vsew).getOrElse(0.U)
 
   io.vector.foreach { v =>
-    v.ex.valid := ex_reg_valid && ex_ctrl.vec && !ctrl_killx
+    v.ex.valid := ex_reg_valid && (ex_ctrl.vec || rocketParams.vector.get.issueVConfig.B && ex_reg_set_vconfig) && !ctrl_killx
     v.ex.inst := ex_reg_inst
     v.ex.vconfig := csr.io.vector.get.vconfig
     v.ex.vstart := Mux(mem_reg_valid && mem_ctrl.vec || wb_reg_valid && wb_ctrl.vec, 0.U, csr.io.vector.get.vstart)

diff --git a/src/main/scala/rocket/VectorUnit.scala b/src/main/scala/rocket/VectorUnit.scala
@@ -12,7 +12,8 @@ case class RocketCoreVectorParams(
   vLen: Int,
   vMemDataBits: Int,
   decoder: Parameters => RocketVectorDecoder,
-  useDCache: Boolean
+  useDCache: Boolean,
+  issueVConfig: Boolean
 )
 
 class VectorCoreIO(implicit p: Parameters) extends CoreBundle()(p) {