gem5/tests/configs/simple-timing.py
Ali Saidi a432d8e085 Mem: Fix issue with dirty block being lost when entire block transferred to non-cache.
This change fixes the problem for all the cases we actively use. If you want to try
more creative I/O device attachments (E.g. sharing an L2), this won't work. You
would need another level of caching between the I/O device and the cache
(which you actually need anyway with our current code to make sure writes
propagate). This is required so that you can mark the cache in between as
top level and it won't try to send ownership of a block to the I/O device.
Asserts have been added that should catch any issues.
2011-03-17 19:20:19 -05:00

53 lines
2.2 KiB
Python

# Copyright (c) 2006-2007 The Regents of The University of Michigan
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# Authors: Steve Reinhardt
import m5
from m5.objects import *
class MyCache(BaseCache):
assoc = 2
block_size = 64
latency = '1ns'
mshrs = 10
tgts_per_mshr = 5
class MyL1Cache(MyCache):
is_top_level = True
cpu = TimingSimpleCPU(cpu_id=0)
cpu.addTwoLevelCacheHierarchy(MyL1Cache(size = '128kB'),
MyL1Cache(size = '256kB'),
MyCache(size = '2MB', latency='10ns'))
system = System(cpu = cpu,
physmem = PhysicalMemory(),
membus = Bus())
system.physmem.port = system.membus.port
cpu.connectAllPorts(system.membus)
cpu.clock = '2GHz'
root = Root(system = system)