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/ruby/system/DMASequencer.cc b/src/mem/ruby/system/DMASequencer.cc
index 43ef37f08..b10538024 100644
--- a/src/mem/ruby/system/DMASequencer.cc
+++ b/src/mem/ruby/system/DMASequencer.cc
@@ -192,12 +192,12 @@ DMASequencer::drain(DrainManager *dm)
         drainManager = dm;
 
         DPRINTF(Drain, "DMASequencer not drained\n");
-        setDrainState(Drainable::Draining);
+        setDrainState(DrainState::Draining);
         return child_drain_count + 1;
     }
 
     drainManager = NULL;
-    setDrainState(Drainable::Drained);
+    setDrainState(DrainState::Drained);
     return child_drain_count;
 }