From 8b4796a367ec21d294f7318343e5bb9d7e07a53e Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 26 Feb 2008 23:38:51 -0500
Subject: TLB: Make a TLB base class and put a virtual demapPage function in
 it.

--HG--
extra : convert_revision : cc0e62a5a337fd5bf332ad33bed61c0d505a936f
---
 src/sim/tlb.cc |  6 ++++++
 src/sim/tlb.hh | 16 ++++++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

(limited to 'src/sim')

diff --git a/src/sim/tlb.cc b/src/sim/tlb.cc
index de6779839..7292a69e0 100644
--- a/src/sim/tlb.cc
+++ b/src/sim/tlb.cc
@@ -48,3 +48,9 @@ GenericTLB::translate(RequestPtr req, ThreadContext * tc, bool)
         return NoFault;
 #endif
 }
+
+void
+GenericTLB::demapPage(Addr vaddr, uint64_t asn)
+{
+    warn("Demapping pages in the generic TLB is unnecessary.\n");
+}
diff --git a/src/sim/tlb.hh b/src/sim/tlb.hh
index b5e341185..011cc1144 100644
--- a/src/sim/tlb.hh
+++ b/src/sim/tlb.hh
@@ -39,13 +39,25 @@
 class ThreadContext;
 class Packet;
 
-class GenericTLB : public SimObject
+class BaseTLB : public SimObject
 {
   protected:
-    GenericTLB(const Params *p) : SimObject(p)
+    BaseTLB(const Params *p) : SimObject(p)
     {}
 
   public:
+    virtual void demapPage(Addr vaddr, uint64_t asn) = 0;
+};
+
+class GenericTLB : public BaseTLB
+{
+  protected:
+    GenericTLB(const Params *p) : BaseTLB(p)
+    {}
+
+  public:
+    void demapPage(Addr vaddr, uint64_t asn);
+
     Fault translate(RequestPtr req, ThreadContext *tc, bool=false);
 };
 
-- 
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