b2669a7875
The MOESI_hammer directory assumes a contiguous address space, but X86 has an IO gap from 3-4GB. This patch allows the directory to work with more than 3GB of memory on X86. Assumptions: the physical address space (range of possible physical addresses) is 0-XGB when X <= 3GB, and 0-(X+1)GB when X > 3GB. If there is no IO gap this patch should still work. Change-Id: I5453a09e953643cada2c096a91d339a3676f55ee Reviewed-on: https://gem5-review.googlesource.com/2169 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
44 lines
2.1 KiB
Python
44 lines
2.1 KiB
Python
# Copyright (c) 2009 Advanced Micro Devices, Inc.
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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: Steve Reinhardt
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# Brad Beckmann
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from m5.params import *
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from m5.proxy import *
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from m5.SimObject import SimObject
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class RubyDirectoryMemory(SimObject):
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type = 'RubyDirectoryMemory'
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cxx_class = 'DirectoryMemory'
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cxx_header = "mem/ruby/structures/DirectoryMemory.hh"
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version = Param.Int(0, "")
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size = Param.MemorySize("1GB", "capacity in bytes")
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# the default value of the numa high bit is specified in the command line
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# option and must be passed into the directory memory sim object
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numa_high_bit = Param.Int("numa high bit")
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system = Param.System(Parent.any, "system object")
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