1# Copyright (c) 2006 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

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22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Lisa Hsu
28
29from os import getcwd
30import m5
31from m5.objects import *
32m5.AddToPath('../common')
33from Caches import L1Cache
34
35def setCPUClass(options):
36
37 atomic = False

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144 cpts.sort(lambda a,b: cmp(long(a), long(b)))
145
146 cpt_num = options.checkpoint_restore
147
148 if cpt_num > len(cpts):
149 m5.panic('Checkpoint %d not found' % cpt_num)
150
151 m5.restoreCheckpoint(root,
152 "/".join([cptdir, "cpt.%s" % cpts[cpt_num - 1]]))
153
154 if options.standard_switch or cpu_class:
155 exit_event = m5.simulate(10000)
156
157 ## when you change to Timing (or Atomic), you halt the system given
158 ## as argument. When you are finished with the system changes
159 ## (including switchCpus), you must resume the system manually.
160 ## You DON'T need to resume after just switching CPUs if you haven't

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179 when = int(when)
180 period = int(period)
181
182 exit_event = m5.simulate(when)
183 while exit_event.getCause() == "checkpoint":
184 exit_event = m5.simulate(when - m5.curTick())
185
186 if exit_event.getCause() == "simulate() limit reached":
187 m5.checkpoint(root, "/".join([cptdir,"cpt.%d"]))
188 num_checkpoints += 1
189
190 sim_ticks = when
191 exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
192 while num_checkpoints < max_checkpoints:
193 if (sim_ticks + period) > maxtick and maxtick != -1:
194 exit_event = m5.simulate(maxtick - sim_ticks)
195 exit_cause = exit_event.getCause()
196 break
197 else:
198 exit_event = m5.simulate(period)
199 sim_ticks += period
200 while exit_event.getCause() == "checkpoint":
201 exit_event = m5.simulate(sim_ticks - m5.curTick())
202 if exit_event.getCause() == "simulate() limit reached":
203 m5.checkpoint(root, "/".join([cptdir,"cpt.%d"]))
204 num_checkpoints += 1
205
206 else: #no checkpoints being taken via this script
207 exit_event = m5.simulate(maxtick)
208
209 while exit_event.getCause() == "checkpoint":
210 m5.checkpoint(root, "/".join([cptdir,"cpt.%d"]))
211 num_checkpoints += 1
212 if num_checkpoints == max_checkpoints:
213 exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
214 break
215
216 if maxtick == -1:
217 exit_event = m5.simulate(maxtick)
218 else:
219 exit_event = m5.simulate(maxtick - m5.curTick())
220
221 exit_cause = exit_event.getCause()
222
223 if exit_cause == '':
224 exit_cause = exit_event.getCause()
225 print 'Exiting @ cycle', m5.curTick(), 'because ', exit_cause
226