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from __future__ import print_function
from __future__ import absolute_import

import inspect
import m5
from m5.objects import *
from m5.options import *

from common.ObjectList import ObjectList
from common.SysPaths import binary, disk

class ArmBaremetal(ArmFsWorkload):
    """ Baremetal workload """
    atags_addr = 0

    def __init__(self, obj, system, **kwargs):
        super(ArmBaremetal, self).__init__(**kwargs)

        self.object_file = obj

class ArmTrustedFirmware(ArmFsWorkload):
    """
    Arm Trusted Firmware (TFA) workload.

    It models the firmware design described at:

    https://trustedfirmware-a.readthedocs.io/en/latest/design/firmware-design.html

    The Workload is expecting to find a set of firmare images under
    the M5_PATH/binaries path. Those images are:
        * bl1.bin (BL1 = Stage 1 Bootloader)
        * fip.bin (FIP = Firmware Image Package):
            BL2, BL31, BL33 binaries compiled under a singe package

    These are the results of the compilation of Arm Trusted Firmware.
    https://github.com/ARM-software/arm-trusted-firmware

    """
    atags_addr = 0

    def __init__(self, obj, system, **kwargs):
        super(ArmTrustedFirmware, self).__init__(**kwargs)

        self.extras = [ binary('bl1.bin'), binary('fip.bin'), ]
        self.extras_addrs = [
            system.realview.bootmem.range.start,
            system.realview.flash0.range.start
        ]

        # Arm Trusted Firmware will provide a PSCI implementation
        system._have_psci = True

class _WorkloadList(ObjectList):
    def _add_objects(self):
        """Add all sub-classes of the base class in the object hierarchy."""
        modname = sys.modules[__name__]
        for name, cls in inspect.getmembers(modname, self._is_obj_class):
            self._sub_classes[name] = cls

workload_list = _WorkloadList(getattr(m5.objects, 'ArmFsWorkload', None))