sim: Make the drain state a global typed enum

The drain state enum is currently a part of the Drainable
interface. The same state machine will be used by the DrainManager to
identify the global state of the simulator. Make the drain state a
global typed enum to better cater for this usage scenario.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mem/simple_mem.cc b/src/mem/simple_mem.cc
index 180339459..f36301809 100644
--- a/src/mem/simple_mem.cc
+++ b/src/mem/simple_mem.cc
@@ -246,9 +246,9 @@ SimpleMemory::drain(DrainManager *dm)
      }
 
     if (count)
-        setDrainState(Drainable::Draining);
+        setDrainState(DrainState::Draining);
     else
-        setDrainState(Drainable::Drained);
+        setDrainState(DrainState::Drained);
     return count;
 }