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/cache/base.cc b/src/mem/cache/base.cc
index 1d0b9a3dd..e58d5f6b9 100644
--- a/src/mem/cache/base.cc
+++ b/src/mem/cache/base.cc
@@ -783,12 +783,12 @@ BaseCache::drain(DrainManager *dm)
 
     // Set status
     if (count != 0) {
-        setDrainState(Drainable::Draining);
+        setDrainState(DrainState::Draining);
         DPRINTF(Drain, "Cache not drained\n");
         return count;
     }
 
-    setDrainState(Drainable::Drained);
+    setDrainState(DrainState::Drained);
     return 0;
 }