System.py revision 8703:f2ac0bca75df 
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
31from m5.SimObject import SimObject
32from m5.defines import buildEnv
33from m5.params import *
34from m5.proxy import *
35
36from PhysicalMemory import *
37
38class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing']
39
40class 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");
84