integrating external spad feature into gemmini

ucb-bar · Jul 12, 2024 · 13810df · 13810df
1 parent e7700a3
commit 13810df
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Showing 3 changed files with 9 additions and 1 deletion.
diff --git a/src/main/scala/gemmini/ConfigsFP.scala b/src/main/scala/gemmini/ConfigsFP.scala
@@ -167,7 +167,11 @@ object GemminiFPConfigs {
     max_in_flight_mem_reqs = 16,
     //headerFileName = "gemmini_params_fp16.h",
     num_counter = 0,
-    clock_gate = true 
+    clock_gate = true,
+    use_tl_ext_mem = true,
+    use_shared_ext_mem = true,
+    tl_ext_mem_base = 0x00,
+    sp_banks = 2,
   )
 
 }

diff --git a/src/main/scala/gemmini/Controller.scala b/src/main/scala/gemmini/Controller.scala
@@ -86,6 +86,9 @@ class Gemmini[T <: Data : Arithmetic, U <: Data, V <: Data](val config: GemminiA
   //   TLMasterPortParameters.v1(Seq(TLMasterParameters.v1(name = s"acc_write_node_$i", sourceId = IdRange(0, numIDs))))
   // }) else TLIdentityNode()
 
+  spad.xbar_node :=* TLBuffer() :=* spad_read_nodes
+  spad.xbar_node :=* TLBuffer() :=* spad_write_nodes
+
   override lazy val module = new GemminiModule(this)
   override val tlNode = if (config.use_dedicated_tl_port) spad.id_node else TLIdentityNode()
   override val atlNode = if (config.use_dedicated_tl_port) TLIdentityNode() else spad.id_node

diff --git a/src/main/scala/gemmini/Scratchpad.scala b/src/main/scala/gemmini/Scratchpad.scala
@@ -217,6 +217,7 @@ class Scratchpad[T <: Data, U <: Data, V <: Data](config: GemminiArrayConfig[T,
 
   xbar_node := TLBuffer() := reader.node // TODO
   xbar_node := TLBuffer() := writer.node
+  xbar_node := TLBuffer() := spad_writer.node
   id_node := TLWidthWidget(config.dma_buswidth/8) := TLBuffer() := xbar_node
 
   lazy val module = new Impl