Integrate rerocc

build.sbt

@@ -254,7 +254,7 @@ lazy val caliptra_aes = (project in file("generators/caliptra-aes-acc"))
   .settings(commonSettings)
 
 lazy val rerocc = (project in file("generators/rerocc"))
-  .dependsOn(rocketchip)
+  .dependsOn(rocketchip, constellation, boom)
   .settings(libraryDependencies ++= rocketLibDeps.value)
   .settings(commonSettings)
 

generators/chipyard/src/main/scala/DigitalTop.scala

@@ -39,6 +39,7 @@ class DigitalTop(implicit p: Parameters) extends ChipyardSystem
   with chipyard.clocking.CanHaveClockTap // Enables optionally adding a clock tap output port
   with fftgenerator.CanHavePeripheryFFT // Enables optionally having an MMIO-based FFT block
   with constellation.soc.CanHaveGlobalNoC // Support instantiating a global NoC interconnect
+  with rerocc.CanHaveReRoCCTiles // Support tiles that instantiate rerocc-attached accelerators
 {
   override lazy val module = new DigitalTopModule(this)
 }

generators/chipyard/src/main/scala/config/RoCCAcceleratorConfigs.scala

@@ -48,3 +48,22 @@ class AES256ECBRocketConfig extends Config(
   new freechips.rocketchip.subsystem.WithNBigCores(1) ++
   new chipyard.config.WithSystemBusWidth(256) ++
   new chipyard.config.AbstractConfig)
+
+class ReRoCCTestConfig extends Config(
+  new rerocc.WithReRoCC ++
+  new chipyard.config.WithCharacterCountRoCC ++                // rerocc tile4 is charcnt
+  new chipyard.config.WithAccumulatorRoCC ++                   // rerocc tile3 is accum
+  new chipyard.config.WithAccumulatorRoCC ++                   // rerocc tile2 is accum
+  new chipyard.config.WithAccumulatorRoCC ++                   // rerocc tile1 is accum
+  new chipyard.config.WithAccumulatorRoCC ++                   // rerocc tile0 is accum
+  new freechips.rocketchip.subsystem.WithNBigCores(1) ++
+  new chipyard.config.AbstractConfig)
+
+class ReRoCCManyGemminiConfig extends Config(
+  new rerocc.WithReRoCC ++
+  new gemmini.LeanGemminiConfig ++                              // rerocc tile3 is gemmini
+  new gemmini.LeanGemminiConfig ++                              // rerocc tile2 is gemmini
+  new gemmini.LeanGemminiConfig ++                              // rerocc tile1 is gemmini
+  new gemmini.LeanGemminiConfig ++                              // rerocc tile0 is gemmini
+  new freechips.rocketchip.subsystem.WithNBigCores(4) ++        // 4 rocket cores
+  new chipyard.config.AbstractConfig)

generators/chipyard/src/main/scala/config/fragments/RoCCFragments.scala

@@ -43,3 +43,17 @@ class WithMultiRoCCGemmini[T <: Data : Arithmetic, U <: Data, V <: Data](
     }))
   }
 })
+
+class WithAccumulatorRoCC(op: OpcodeSet = OpcodeSet.custom1) extends Config((site, here, up) => {
+  case BuildRoCC => up(BuildRoCC) ++ Seq((p: Parameters) => {
+    val accumulator = LazyModule(new AccumulatorExample(op, n = 4)(p))
+    accumulator
+  })
+})
+
+class WithCharacterCountRoCC(op: OpcodeSet = OpcodeSet.custom2) extends Config((site, here, up) => {
+  case BuildRoCC => up(BuildRoCC) ++ Seq((p: Parameters) => {
+    val counter = LazyModule(new CharacterCountExample(op)(p))
+    counter
+  })
+})