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# Authors: Andreas Sandberg

from abc import ABCMeta, abstractmethod
import m5
from m5.objects import *
from m5.proxy import *
m5.util.addToPath('../configs/')
from common import FSConfig, SysPaths
from common.Caches import *
from base_config import *

class LinuxAlphaSystemBuilder(object):
    """Mix-in that implements create_system.

    This mix-in is intended as a convenient way of adding an
    Alpha-specific create_system method to a class deriving from one of
    the generic base systems.
    """
    def __init__(self):
        """
        Arguments:
          machine_type -- String describing the platform to simulate
        """
        pass

    def create_system(self):
        system = FSConfig.makeLinuxAlphaSystem(self.mem_mode)
        system.kernel = SysPaths.binary('vmlinux')
        self.init_system(system)
        return system

class LinuxAlphaFSSystem(LinuxAlphaSystemBuilder,
                         BaseFSSystem):
    """Basic Alpha full system builder."""

    def __init__(self, **kwargs):
        """Initialize an Alpha system that supports full system simulation.

        Note: Keyword arguments that are not listed below will be
        passed to the BaseFSSystem.

        Keyword Arguments:
          -
        """
        BaseSystem.__init__(self, **kwargs)
        LinuxAlphaSystemBuilder.__init__(self)

class LinuxAlphaFSSystemUniprocessor(LinuxAlphaSystemBuilder,
                                     BaseFSSystemUniprocessor):
    """Basic Alpha full system builder for uniprocessor systems.

    Note: This class is a specialization of the AlphaFSSystem and is
    only really needed to provide backwards compatibility for existing
    test cases.
    """

    def __init__(self, **kwargs):
        BaseFSSystemUniprocessor.__init__(self, **kwargs)
        LinuxAlphaSystemBuilder.__init__(self)

class LinuxAlphaFSSwitcheroo(LinuxAlphaSystemBuilder, BaseFSSwitcheroo):
    """Uniprocessor Alpha system prepared for CPU switching"""

    def __init__(self, **kwargs):
        BaseFSSwitcheroo.__init__(self, **kwargs)
        LinuxAlphaSystemBuilder.__init__(self)