1# Copyright (c) 2012 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
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35#
36# Authors: Andreas Sandberg
37
38from abc import ABCMeta, abstractmethod
39import m5
40from m5.objects import *
41from m5.proxy import *
42m5.util.addToPath('../configs/')
43from common.Benchmarks import SysConfig
44from common import FSConfig, SysPaths
45from common.Caches import *
46from base_config import *
47
48class LinuxX86SystemBuilder(object):
49    """Mix-in that implements create_system.
50
51    This mix-in is intended as a convenient way of adding an
52    X86-specific create_system method to a class deriving from one of
53    the generic base systems.
54    """
55    def __init__(self):
56        pass
57
58    def create_system(self):
59        mdesc = SysConfig(disk = 'linux-x86.img')
60        system = FSConfig.makeLinuxX86System(self.mem_mode,
61                                             numCPUs=self.num_cpus,
62                                             mdesc=mdesc)
63        system.kernel = SysPaths.binary('x86_64-vmlinux-2.6.22.9')
64
65        self.init_system(system)
66        return system
67
68class LinuxX86FSSystem(LinuxX86SystemBuilder,
69                       BaseFSSystem):
70    """Basic X86 full system builder."""
71
72    def __init__(self, **kwargs):
73        """Initialize an X86 system that supports full system simulation.
74
75        Note: Keyword arguments that are not listed below will be
76        passed to the BaseFSSystem.
77
78        Keyword Arguments:
79          machine_type -- String describing the platform to simulate
80        """
81        BaseSystem.__init__(self, **kwargs)
82        LinuxX86SystemBuilder.__init__(self)
83
84    def create_caches_private(self, cpu):
85        cpu.addPrivateSplitL1Caches(L1_ICache(size='32kB', assoc=1),
86                                    L1_DCache(size='32kB', assoc=4),
87                                    PageTableWalkerCache(),
88                                    PageTableWalkerCache())
89
90class LinuxX86FSSystemUniprocessor(LinuxX86SystemBuilder,
91                                   BaseFSSystemUniprocessor):
92    """Basic X86 full system builder for uniprocessor systems.
93
94    Note: This class is a specialization of the X86FSSystem and is
95    only really needed to provide backwards compatibility for existing
96    test cases.
97    """
98
99    def __init__(self, **kwargs):
100        BaseFSSystemUniprocessor.__init__(self, **kwargs)
101        LinuxX86SystemBuilder.__init__(self)
102
103    def create_caches_private(self, cpu):
104        cpu.addTwoLevelCacheHierarchy(L1_ICache(size='32kB', assoc=1),
105                                      L1_DCache(size='32kB', assoc=4),
106                                      L2Cache(size='4MB', assoc=8),
107                                      PageTableWalkerCache(),
108                                      PageTableWalkerCache())
109
110
111class LinuxX86FSSwitcheroo(LinuxX86SystemBuilder, BaseFSSwitcheroo):
112    """Uniprocessor X86 system prepared for CPU switching"""
113
114    def __init__(self, **kwargs):
115        BaseFSSwitcheroo.__init__(self, **kwargs)
116        LinuxX86SystemBuilder.__init__(self)
117