MemTest.py

   1 # Copyright (c) 2005-2007 The Regents of The University of Michigan
   2 # All rights reserved.
   3 #
   4 # Redistribution and use in source and binary forms, with or without
   5 # modification, are permitted provided that the following conditions are
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   7 # notice, this list of conditions and the following disclaimer;
   8 # redistributions in binary form must reproduce the above copyright
   9 # notice, this list of conditions and the following disclaimer in the
  10 # documentation and/or other materials provided with the distribution;
  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27 # Authors: Nathan Binkert
  28
  29 from MemObject import MemObject
  30 from m5.params import *
  31 from m5.proxy import *
  32
  33 class MemTest(MemObject):
  34     type = 'MemTest'
  35     max_loads = Param.Counter(0, "number of loads to execute")
  36     atomic = Param.Bool(False, "Execute tester in atomic mode? (or timing)\n")
  37     memory_size = Param.Int(65536, "memory size")
  38     percent_dest_unaligned = Param.Percent(50,
  39         "percent of copy dest address that are unaligned")
  40     percent_reads = Param.Percent(65, "target read percentage")
  41     issue_dmas = Param.Bool(False, "this memtester should issue dma requests")
  42     percent_source_unaligned = Param.Percent(50,
  43         "percent of copy source address that are unaligned")
  44     percent_functional = Param.Percent(50, "percent of access that are functional")
  45     percent_uncacheable = Param.Percent(10,
  46         "target uncacheable percentage")
  47     progress_interval = Param.Counter(1000000,
  48         "progress report interval (in accesses)")
  49     trace_addr = Param.Addr(0, "address to trace")
  50
  51     test = Port("Port to the memory system to test")
  52     functional = Port("Port to the functional memory used for verification")