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(MemObject):
  41     type = 'System'
  42     system_port = Port("System port")
  43
  44     @classmethod
  45     def export_method_cxx_predecls(cls, code):
  46         code('#include "sim/system.hh"')
  47
  48     @classmethod
  49     def export_methods(cls, code):
  50         code('''
  51       Enums::MemoryMode getMemoryMode();
  52       void setMemoryMode(Enums::MemoryMode mode);
  53 ''')
  54
  55     physmem = Param.PhysicalMemory("Physical Memory")
  56     mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in")
  57     memories = VectorParam.PhysicalMemory(Self.all, "All memories is the system")
  58     work_item_id = Param.Int(-1, "specific work item id")
  59     num_work_ids = Param.Int(16, "Number of distinct work item types")
  60     work_begin_cpu_id_exit = Param.Int(-1,
  61         "work started on specific id, now exit simulation")
  62     work_begin_ckpt_count = Param.Counter(0,
  63         "create checkpoint when work items begin count value is reached")
  64     work_begin_exit_count = Param.Counter(0,
  65         "exit simulation when work items begin count value is reached")
  66     work_end_ckpt_count = Param.Counter(0,
  67         "create checkpoint when work items end count value is reached")
  68     work_end_exit_count = Param.Counter(0,
  69         "exit simulation when work items end count value is reached")
  70     work_cpus_ckpt_count = Param.Counter(0,
  71         "create checkpoint when active cpu count value is reached")
  72
  73     if buildEnv['FULL_SYSTEM']:
  74         abstract = True
  75         boot_cpu_frequency = Param.Frequency(Self.cpu[0].clock.frequency,
  76                                              "boot processor frequency")
  77         init_param = Param.UInt64(0, "numerical value to pass into simulator")
  78         boot_osflags = Param.String("a", "boot flags to pass to the kernel")
  79         kernel = Param.String("", "file that contains the kernel code")
  80         readfile = Param.String("", "file to read startup script from")
  81         symbolfile = Param.String("", "file to get the symbols from")
  82         load_addr_mask = Param.UInt64(0xffffffffff,
  83                 "Address to mask loading binaries with");