1 /*
   2  * Copyright 2003-2004 Sun Microsystems, Inc.  All Rights Reserved.
   3  * Copyright 2007, 2009 Red Hat, Inc.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  21  * CA 95054 USA or visit www.sun.com if you need additional information or
  22  * have any questions.
  23  *
  24  */
  25 
  26 // Interface for updating the instruction cache.  Whenever the VM
  27 // modifies code, part of the processor instruction cache potentially
  28 // has to be flushed.  This implementation is empty: Zero never deals
  29 // with code, and LLVM handles cache flushing for Shark.
  30 
  31 class ICache : public AbstractICache {
  32  public:
  33   static void initialize() {}
  34   static void invalidate_word(address addr) {}
  35   static void invalidate_range(address start, int nbytes) {}
  36 };