src/mem/cache/cache_blk.cc

   1 /*
   2  * Copyright (c) 2012-2013 ARM Limited
   3  * All rights reserved
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Copyright (c) 2007 The Regents of The University of Michigan
  15  * All rights reserved.
  16  *
  17  * Redistribution and use in source and binary forms, with or without
  18  * modification, are permitted provided that the following conditions are
  19  * met: redistributions of source code must retain the above copyright
  20  * notice, this list of conditions and the following disclaimer;
  21  * redistributions in binary form must reproduce the above copyright
  22  * notice, this list of conditions and the following disclaimer in the
  23  * documentation and/or other materials provided with the distribution;
  24  * neither the name of the copyright holders nor the names of its
  25  * contributors may be used to endorse or promote products derived from
  26  * this software without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  30  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  31  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  32  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  33  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  34  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  35  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  36  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  37  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  38  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  39  */
  40
  41 #include "mem/cache/cache_blk.hh"
  42
  43 #include "base/cprintf.hh"
  44
  45 void
  46 CacheBlk::insert(const Addr tag, const bool is_secure,
  47                  const int src_master_ID, const uint32_t task_ID)
  48 {
  49     // Make sure that the block has been properly invalidated
  50     assert(status == 0);
  51
  52     // Set block tag
  53     this->tag = tag;
  54
  55     // Set source requestor ID
  56     srcMasterId = src_master_ID;
  57
  58     // Set task ID
  59     task_id = task_ID;
  60
  61     // Set insertion tick as current tick
  62     tickInserted = curTick();
  63
  64     // Insertion counts as a reference to the block
  65     refCount = 1;
  66
  67     // Set secure state
  68     if (is_secure) {
  69         setSecure();
  70     }
  71
  72     // Validate block
  73     setValid();
  74 }
  75
  76 void
  77 CacheBlkPrintWrapper::print(std::ostream &os, int verbosity,
  78                             const std::string &prefix) const
  79 {
  80     ccprintf(os, "%sblk %c%c%c%c\n", prefix,
  81              blk->isValid()    ? 'V' : '-',
  82              blk->isWritable() ? 'E' : '-',
  83              blk->isDirty()    ? 'M' : '-',
  84              blk->isSecure()   ? 'S' : '-');
  85 }
  86