System.py revision 9524
1# Copyright (c) 2005-2007 The Regents of The University of Michigan 2# Copyright (c) 2011 Regents of the University of California 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer; 9# redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution; 12# neither the name of the copyright holders nor the names of its 13# contributors may be used to endorse or promote products derived from 14# this software without specific prior written permission. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27# 28# Authors: Nathan Binkert 29# Rick Strong 30 31from m5.SimObject import SimObject 32from m5.defines import buildEnv 33from m5.params import * 34from m5.proxy import * 35 36from SimpleMemory import * 37 38class MemoryMode(Enum): vals = ['invalid', 'atomic', 'timing', 39 'atomic_noncaching'] 40 41class System(MemObject): 42 type = 'System' 43 cxx_header = "sim/system.hh" 44 system_port = MasterPort("System port") 45 46 # Override the clock from the ClockedObject which looks at the 47 # parent clock by default. The 1 GHz default system clock serves 48 # as a start for the modules that rely on the parent to provide 49 # the clock. 50 clock = '1GHz' 51 52 @classmethod 53 def export_method_cxx_predecls(cls, code): 54 code('#include "sim/system.hh"') 55 56 @classmethod 57 def export_methods(cls, code): 58 code(''' 59 Enums::MemoryMode getMemoryMode() const; 60 void setMemoryMode(Enums::MemoryMode mode); 61''') 62 63 memories = VectorParam.AbstractMemory(Self.all, 64 "All memories in the system") 65 mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in") 66 67 # The memory ranges are to be populated when creating the system 68 # such that these can be passed from the I/O subsystem through an 69 # I/O bridge or cache 70 mem_ranges = VectorParam.AddrRange([], "Ranges that constitute main memory") 71 72 work_item_id = Param.Int(-1, "specific work item id") 73 num_work_ids = Param.Int(16, "Number of distinct work item types") 74 work_begin_cpu_id_exit = Param.Int(-1, 75 "work started on specific id, now exit simulation") 76 work_begin_ckpt_count = Param.Counter(0, 77 "create checkpoint when work items begin count value is reached") 78 work_begin_exit_count = Param.Counter(0, 79 "exit simulation when work items begin count value is reached") 80 work_end_ckpt_count = Param.Counter(0, 81 "create checkpoint when work items end count value is reached") 82 work_end_exit_count = Param.Counter(0, 83 "exit simulation when work items end count value is reached") 84 work_cpus_ckpt_count = Param.Counter(0, 85 "create checkpoint when active cpu count value is reached") 86 87 init_param = Param.UInt64(0, "numerical value to pass into simulator") 88 boot_osflags = Param.String("a", "boot flags to pass to the kernel") 89 kernel = Param.String("", "file that contains the kernel code") 90 readfile = Param.String("", "file to read startup script from") 91 symbolfile = Param.String("", "file to get the symbols from") 92 load_addr_mask = Param.UInt64(0xffffffffff, 93 "Address to mask loading binaries with"); 94