realview-simple-timing.py revision 9288:3d6da8559605 
1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# All rights reserved.
3#
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5# modification, are permitted provided that the following conditions are
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7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
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11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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26#
27# Authors: Steve Reinhardt
28
29import m5
30from m5.objects import *
31m5.util.addToPath('../configs/common')
32import FSConfig
33
34
35# --------------------
36# Base L1 Cache
37# ====================
38
39class L1(BaseCache):
40    hit_latency = 2
41    response_latency = 2
42    block_size = 64
43    mshrs = 4
44    tgts_per_mshr = 8
45    is_top_level = True
46
47# ----------------------
48# Base L2 Cache
49# ----------------------
50
51class L2(BaseCache):
52    block_size = 64
53    hit_latency = 20
54    response_latency = 20
55    mshrs = 92
56    tgts_per_mshr = 16
57    write_buffers = 8
58
59# ---------------------
60# I/O Cache
61# ---------------------
62class IOCache(BaseCache):
63    assoc = 8
64    block_size = 64
65    hit_latency = 50
66    response_latency = 50
67    mshrs = 20
68    size = '1kB'
69    tgts_per_mshr = 12
70    addr_ranges = [AddrRange(0, size='256MB')]
71    forward_snoops = False
72
73#cpu
74cpu = TimingSimpleCPU(cpu_id=0)
75#the system
76system = FSConfig.makeArmSystem('timing', "RealView_PBX", None, False)
77
78system.cpu = cpu
79
80#create the iocache
81system.iocache = IOCache(clock = '1GHz')
82system.iocache.cpu_side = system.iobus.master
83system.iocache.mem_side = system.membus.slave
84
85#connect up the cpu and caches
86cpu.addTwoLevelCacheHierarchy(L1(size = '32kB', assoc = 1),
87                              L1(size = '32kB', assoc = 4),
88                              L2(size = '4MB', assoc = 8))
89# create the interrupt controller
90cpu.createInterruptController()
91# connect cpu and caches to the rest of the system
92cpu.connectAllPorts(system.membus)
93# set the cpu clock along with the caches and l1-l2 bus
94cpu.clock = '2GHz'
95
96root = Root(full_system=True, system=system)
97m5.ticks.setGlobalFrequency('1THz')
98
99