2f5262eb67
Continue along the same line as the recent patch that made the Ruby-related config scripts Python packages and make also the configs/common directory a package. All affected config scripts are updated (hopefully). Note that this change makes it apparent that the current organisation and naming of the config directory and its subdirectories is rather chaotic. We mix scripts that are directly invoked with scripts that merely contain convenience functions. While it is not addressed in this patch we should follow up with a re-organisation of the config structure, and renaming of some of the packages.
128 lines
4.1 KiB
Python
128 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2015 Jason Power
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Jason Power
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""" Caches with options for a simple gem5 configuration script
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This file contains L1 I/D and L2 caches to be used in the simple
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gem5 configuration script. It uses the SimpleOpts wrapper to set up command
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line options from each individual class.
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"""
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from m5.objects import Cache
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from common import SimpleOpts
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# Some specific options for caches
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# For all options see src/mem/cache/BaseCache.py
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class L1Cache(Cache):
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"""Simple L1 Cache with default values"""
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assoc = 2
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hit_latency = 2
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response_latency = 2
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mshrs = 4
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tgts_per_mshr = 20
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def __init__(self, options=None):
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super(L1Cache, self).__init__()
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pass
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def connectBus(self, bus):
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"""Connect this cache to a memory-side bus"""
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self.mem_side = bus.slave
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def connectCPU(self, cpu):
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"""Connect this cache's port to a CPU-side port
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This must be defined in a subclass"""
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raise NotImplementedError
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class L1ICache(L1Cache):
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"""Simple L1 instruction cache with default values"""
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# Set the default size
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size = '16kB'
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SimpleOpts.add_option('--l1i_size',
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help="L1 instruction cache size. Default: %s" % size)
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def __init__(self, opts=None):
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super(L1ICache, self).__init__(opts)
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if not opts or not opts.l1i_size:
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return
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self.size = opts.l1i_size
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def connectCPU(self, cpu):
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"""Connect this cache's port to a CPU icache port"""
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self.cpu_side = cpu.icache_port
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class L1DCache(L1Cache):
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"""Simple L1 data cache with default values"""
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# Set the default size
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size = '64kB'
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SimpleOpts.add_option('--l1d_size',
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help="L1 data cache size. Default: %s" % size)
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def __init__(self, opts=None):
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super(L1DCache, self).__init__(opts)
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if not opts or not opts.l1d_size:
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return
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self.size = opts.l1d_size
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def connectCPU(self, cpu):
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"""Connect this cache's port to a CPU dcache port"""
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self.cpu_side = cpu.dcache_port
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class L2Cache(Cache):
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"""Simple L2 Cache with default values"""
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# Default parameters
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size = '256kB'
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assoc = 8
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hit_latency = 20
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response_latency = 20
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mshrs = 20
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tgts_per_mshr = 12
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SimpleOpts.add_option('--l2_size', help="L2 cache size. Default: %s" % size)
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def __init__(self, opts=None):
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super(L2Cache, self).__init__()
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if not opts or not opts.l2_size:
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return
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self.size = opts.l2_size
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def connectCPUSideBus(self, bus):
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self.cpu_side = bus.master
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def connectMemSideBus(self, bus):
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self.mem_side = bus.slave
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