| 1# Copyright (c) 2013 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license --- 25 unchanged lines hidden (view full) --- 34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35# 36# Authors: Andreas Sandberg 37# Andreas Hansson 38 39import m5.objects 40import inspect 41import sys |
| 42import HMC |
| 43from textwrap import TextWrapper 44 45# Dictionary of mapping names of real memory controller models to 46# classes. 47_mem_classes = {} 48 49def is_mem_class(cls): 50 """Determine if a class is a memory controller that can be instantiated""" --- 96 unchanged lines hidden (view full) --- 147 148 If requested, we make a multi-channel configuration of the 149 selected memory controller class by creating multiple instances of 150 the specific class. The individual controllers have their 151 parameters set such that the address range is interleaved between 152 them. 153 """ 154 |
| 155 if ( options.mem_type == "HMC_2500_x32"): 156 HMC.config_hmc(options, system) 157 subsystem = system.hmc 158 xbar = system.hmc.xbar 159 else: 160 subsystem = system 161 xbar = system.membus 162 |
| 163 if options.tlm_memory: 164 system.external_memory = m5.objects.ExternalSlave( 165 port_type="tlm", 166 port_data=options.tlm_memory, 167 port=system.membus.master, 168 addr_ranges=system.mem_ranges) 169 system.kernel_addr_check = False 170 return 171 172 if options.external_memory_system: |
| 173 subsystem.external_memory = m5.objects.ExternalSlave( |
| 174 port_type=options.external_memory_system, |
| 175 port_data="init_mem0", port=xbar.master, |
| 176 addr_ranges=system.mem_ranges) |
| 177 subsystem.kernel_addr_check = False |
| 178 return 179 180 nbr_mem_ctrls = options.mem_channels 181 import math 182 from m5.util import fatal 183 intlv_bits = int(math.log(nbr_mem_ctrls, 2)) 184 if 2 ** intlv_bits != nbr_mem_ctrls: 185 fatal("Number of memory channels must be a power of 2") --- 17 unchanged lines hidden (view full) --- 203 # Set the number of ranks based on the command-line 204 # options if it was explicitly set 205 if issubclass(cls, m5.objects.DRAMCtrl) and \ 206 options.mem_ranks: 207 mem_ctrl.ranks_per_channel = options.mem_ranks 208 209 mem_ctrls.append(mem_ctrl) 210 |
| 211 subsystem.mem_ctrls = mem_ctrls |
| 212 213 # Connect the controllers to the membus |
| 214 for i in xrange(len(subsystem.mem_ctrls)): 215 subsystem.mem_ctrls[i].port = xbar.master |