X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmem%2Fpage_table.hh;h=fce063280ff98c9e9c49ba630c02ee891b3b9dd9;hb=bc732b59fd82689490306090974f1f4c06741b0a;hp=f7212d42311a1616e8e5f90bb8d6d88b9bf0320b;hpb=984c2a4ff677803ff7687a178f1dceb1f0204c30;p=gem5.git

diff --git a/src/mem/page_table.hh b/src/mem/page_table.hh
index f7212d423..fce063280 100644
--- a/src/mem/page_table.hh
+++ b/src/mem/page_table.hh
@@ -37,9 +37,10 @@
 #define __PAGE_TABLE__
 
 #include <string>
-#include <map>
 
+#include "sim/faults.hh"
 #include "arch/isa_traits.hh"
+#include "base/hashmap.hh"
 #include "base/trace.hh"
 #include "mem/request.hh"
 #include "mem/packet.hh"
@@ -48,12 +49,19 @@
 class System;
 
 /**
- * Page Table Decleration.
+ * Page Table Declaration.
  */
 class PageTable
 {
   protected:
-    std::map<Addr,Addr> pTable;
+    m5::hash_map<Addr,Addr> pTable;
+
+    struct cacheElement {
+        Addr paddr;
+        Addr vaddr;
+    } ;
+
+    struct cacheElement pTableCache[3];
 
     const Addr pageSize;
     const Addr offsetMask;
@@ -69,9 +77,9 @@ class PageTable
     Addr pageAlign(Addr a)  { return (a & ~offsetMask); }
     Addr pageOffset(Addr a) { return (a &  offsetMask); }
 
-    Fault page_check(Addr addr, int size) const;
+    Fault page_check(Addr addr, int64_t size) const;
 
-    void allocate(Addr vaddr, int size);
+    void allocate(Addr vaddr, int64_t size);
 
     /**
      * Translate function