ruby: banked cache array resource model

This patch models a cache as separate tag and data arrays.  The patch exposes
the banked array as another resource that is checked by SLICC before a
transition is allowed to execute.  This is similar to how TBE entries and slots
in output ports are modeled.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mem/ruby/system/Cache.py b/src/mem/ruby/system/Cache.py
index 79ab9b070..2b4daa68b 100644
--- a/src/mem/ruby/system/Cache.py
+++ b/src/mem/ruby/system/Cache.py
@@ -40,3 +40,9 @@ class RubyCache(SimObject):
     replacement_policy = Param.String("PSEUDO_LRU", "");
     start_index_bit = Param.Int(6, "index start, default 6 for 64-byte line");
     is_icache = Param.Bool(False, "is instruction only cache");
+
+    dataArrayBanks = Param.Int(1, "Number of banks for the data array")
+    tagArrayBanks = Param.Int(1, "Number of banks for the tag array")
+    dataAccessLatency = Param.Int(1, "Gem5 cycles for the data array")
+    tagAccessLatency = Param.Int(1, "Gem5 cycles for the tag array")
+    resourceStalls = Param.Bool(False, "stall if there is a resource failure")