1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
# Copyright (c) 2008 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Gabe Black
from m5.params import *
from m5.proxy import *
from Cmos import Cmos
from I8042 import I8042
from I82094AA import I82094AA
from I8237 import I8237
from I8254 import I8254
from I8259 import I8259
from Ide import IdeController
from PcSpeaker import PcSpeaker
from X86IntPin import X86IntLine
from m5.SimObject import SimObject
def x86IOAddress(port):
IO_address_space_base = 0x8000000000000000
return IO_address_space_base + port;
class SouthBridge(SimObject):
type = 'SouthBridge'
pio_latency = Param.Latency('1ns', "Programmed IO latency in simticks")
platform = Param.Platform(Parent.any, "Platform this device is part of")
_pic1 = I8259(pio_addr=x86IOAddress(0x20), mode='I8259Master')
_pic2 = I8259(pio_addr=x86IOAddress(0xA0), mode='I8259Slave')
_cmos = Cmos(pio_addr=x86IOAddress(0x70))
_dma1 = I8237(pio_addr=x86IOAddress(0x0))
_keyboard = I8042(data_port=x86IOAddress(0x60), \
command_port=x86IOAddress(0x64))
_pit = I8254(pio_addr=x86IOAddress(0x40))
_speaker = PcSpeaker(pio_addr=x86IOAddress(0x61))
_io_apic = I82094AA(pio_addr=0xFEC00000)
pic1 = Param.I8259(_pic1, "Master PIC")
pic2 = Param.I8259(_pic2, "Slave PIC")
cmos = Param.Cmos(_cmos, "CMOS memory and real time clock device")
dma1 = Param.I8237(_dma1, "The first dma controller")
keyboard = Param.I8042(_keyboard, "The keyboard controller")
pit = Param.I8254(_pit, "Programmable interval timer")
speaker = Param.PcSpeaker(_speaker, "PC speaker")
io_apic = Param.I82094AA(_io_apic, "I/O APIC")
# IDE controller
ide = IdeController(disks=[], pci_func=0, pci_dev=4, pci_bus=0)
ide.BAR0 = 0x1f0
ide.BAR0LegacyIO = True
ide.BAR1 = 0x3f4
ide.BAR1Size = '3B'
ide.BAR1LegacyIO = True
ide.BAR2 = 0x170
ide.BAR2LegacyIO = True
ide.BAR3 = 0x374
ide.BAR3Size = '3B'
ide.BAR3LegacyIO = True
ide.BAR4 = 1
ide.Command = 0
ide.ProgIF = 0x80
ide.InterruptLine = 14
ide.InterruptPin = 1
def attachIO(self, bus):
# Route interupt signals
self.int_lines = \
[X86IntLine(source=self.pic1.output, sink=self.io_apic.pin(0)),
X86IntLine(source=self.pic2.output, sink=self.pic1.pin(2)),
X86IntLine(source=self.cmos.int_pin, sink=self.pic2.pin(0)),
X86IntLine(source=self.pit.int_pin, sink=self.pic1.pin(0)),
X86IntLine(source=self.pit.int_pin, sink=self.io_apic.pin(2)),
X86IntLine(source=self.keyboard.keyboard_int_pin,
sink=self.io_apic.pin(1)),
X86IntLine(source=self.keyboard.mouse_int_pin,
sink=self.io_apic.pin(12))]
# Tell the devices about each other
self.pic1.slave = self.pic2
self.speaker.i8254 = self.pit
self.io_apic.external_int_pic = self.pic1
# Connect to the bus
self.cmos.pio = bus.master
self.dma1.pio = bus.master
self.ide.pio = bus.master
self.ide.config = bus.master
self.ide.dma = bus.slave
self.keyboard.pio = bus.master
self.pic1.pio = bus.master
self.pic2.pio = bus.master
self.pit.pio = bus.master
self.speaker.pio = bus.master
self.io_apic.pio = bus.master
self.io_apic.int_master = bus.slave
|
