src/sim/System.py

   1 # Copyright (c) 2005-2007 The Regents of The University of Michigan
   2 # Copyright (c) 2011 Regents of the University of California
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
   7 # met: redistributions of source code must retain the above copyright
   8 # notice, this list of conditions and the following disclaimer;
   9 # redistributions in binary form must reproduce the above copyright
  10 # notice, this list of conditions and the following disclaimer in the
  11 # documentation and/or other materials provided with the distribution;
  12 # neither the name of the copyright holders nor the names of its
  13 # contributors may be used to endorse or promote products derived from
  14 # this software without specific prior written permission.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 #
  28 # Authors: Nathan Binkert
  29 #          Rick Strong
  30
  31 from m5.SimObject import SimObject
  32 from m5.defines import buildEnv
  33 from m5.params import *
  34 from m5.proxy import *
  35
  36 from PhysicalMemory import *
  37
  38 class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing']
  39
  40 class System(SimObject):
  41     type = 'System'
  42
  43     @classmethod
  44     def swig_objdecls(cls, code):
  45         code('%include "python/swig/system.i"')
  46
  47     physmem = Param.PhysicalMemory(Parent.any, "physical memory")
  48     mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in")
  49
  50     work_item_id = Param.Int(-1, "specific work item id")
  51     work_begin_cpu_id_exit = Param.Int(-1,
  52         "work started on specific id, now exit simulation")
  53     work_begin_ckpt_count = Param.Counter(0,
  54         "create checkpoint when work items begin count value is reached")
  55     work_begin_exit_count = Param.Counter(0,
  56         "exit simulation when work items begin count value is reached")
  57     work_end_ckpt_count = Param.Counter(0,
  58         "create checkpoint when work items end count value is reached")
  59     work_end_exit_count = Param.Counter(0,
  60         "exit simulation when work items end count value is reached")
  61     work_cpus_ckpt_count = Param.Counter(0,
  62         "create checkpoint when active cpu count value is reached")
  63
  64     if buildEnv['FULL_SYSTEM']:
  65         abstract = True
  66         boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency,
  67                                              "boot processor frequency")
  68         init_param = Param.UInt64(0, "numerical value to pass into simulator")
  69         boot_osflags = Param.String("a", "boot flags to pass to the kernel")
  70         kernel = Param.String("", "file that contains the kernel code")
  71         readfile = Param.String("", "file to read startup script from")
  72         symbolfile = Param.String("", "file to get the symbols from")
  73         load_addr_mask = Param.UInt64(0xffffffffff,
  74                 "Address to mask loading binaries with");