# Copyright (c) 2012 ARM Limited
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#
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# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder.  You may use the software subject to the license
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# Authors: Andreas Sandberg

from m5.params import *
from m5.SimObject import SimObject

class ArmISA(SimObject):
    type = 'ArmISA'
    cxx_class = 'ArmISA::ISA'
    cxx_header = "arch/arm/isa.hh"

    # 0x35 Implementor is '5' from "M5"
    # 0x0 Variant
    # 0xf Architecture from CPUID scheme
    # 0xc00 Primary part number ("c" or higher implies ARM v7)
    # 0x0 Revision
    midr = Param.UInt32(0x350fc000, "Main ID Register")

    # See section B4.1.93 - B4.1.94 of the ARM ARM
    #
    # !ThumbEE | !Jazelle | Thumb | ARM
    # Note: ThumbEE is disabled for now since we don't support CP14
    # config registers and jumping to ThumbEE vectors
    id_pfr0 = Param.UInt32(0x00000031, "Processor Feature Register 0")
    # !Timer | !Virti | !M Profile | !TrustZone | ARMv4
    id_pfr1 = Param.UInt32(0x00000001, "Processor Feature Register 1")

    # See section B4.1.89 - B4.1.92 of the ARM ARM
    #  VMSAv7 support
    id_mmfr0 = Param.UInt32(0x00000003, "Memory Model Feature Register 0")
    id_mmfr1 = Param.UInt32(0x00000000, "Memory Model Feature Register 1")
    # no HW access | WFI stalling | ISB and DSB |
    # all TLB maintenance | no Harvard
    id_mmfr2 = Param.UInt32(0x01230000, "Memory Model Feature Register 2")
    # SuperSec | Coherent TLB | Bcast Maint |
    # BP Maint | Cache Maint Set/way | Cache Maint MVA
    id_mmfr3 = Param.UInt32(0xF0102211, "Memory Model Feature Register 3")

    # See section B4.1.84 of ARM ARM
    # All values are latest for ARMv7-A profile
    id_isar0 = Param.UInt32(0x02101111, "Instruction Set Attribute Register 0")
    id_isar1 = Param.UInt32(0x02112111, "Instruction Set Attribute Register 1")
    id_isar2 = Param.UInt32(0x21232141, "Instruction Set Attribute Register 2")
    id_isar3 = Param.UInt32(0x01112131, "Instruction Set Attribute Register 3")
    id_isar4 = Param.UInt32(0x10010142, "Instruction Set Attribute Register 4")
    id_isar5 = Param.UInt32(0x00000000, "Instruction Set Attribute Register 5")


    fpsid = Param.UInt32(0x410430A0, "Floating-point System ID Register")