1# Copyright (c) 2005-2007 The Regents of The University of Michigan
2# Copyright (c) 2010 Advanced Micro Devices, Inc.
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
30from m5.SimObject import SimObject
31from m5.defines import buildEnv
32from m5.params import *
33from m5.util import fatal
34
35class Root(SimObject):
36
37 _the_instance = None
38
39 def __new__(cls, **kwargs):
40 if Root._the_instance:
41 fatal("Attempt to allocate multiple instances of Root.")
42 return None
43
44 # first call: allocate the unique instance
45 #
46 # If SimObject ever implements __new__, we may want to pass
47 # kwargs here, but for now this goes straight to
48 # object.__new__ which prints an ugly warning if you pass it
49 # args. Seems like a bad design but that's the way it is.
50 Root._the_instance = SimObject.__new__(cls)
51 return Root._the_instance
52
53 @classmethod
54 def getInstance(cls):
55 return Root._the_instance
56
57 def path(self):
58 return 'root'
59
60 type = 'Root'
| 1# Copyright (c) 2005-2007 The Regents of The University of Michigan
2# Copyright (c) 2010 Advanced Micro Devices, Inc.
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
30from m5.SimObject import SimObject
31from m5.defines import buildEnv
32from m5.params import *
33from m5.util import fatal
34
35class Root(SimObject):
36
37 _the_instance = None
38
39 def __new__(cls, **kwargs):
40 if Root._the_instance:
41 fatal("Attempt to allocate multiple instances of Root.")
42 return None
43
44 # first call: allocate the unique instance
45 #
46 # If SimObject ever implements __new__, we may want to pass
47 # kwargs here, but for now this goes straight to
48 # object.__new__ which prints an ugly warning if you pass it
49 # args. Seems like a bad design but that's the way it is.
50 Root._the_instance = SimObject.__new__(cls)
51 return Root._the_instance
52
53 @classmethod
54 def getInstance(cls):
55 return Root._the_instance
56
57 def path(self):
58 return 'root'
59
60 type = 'Root'
|
61
62 full_system = Param.Bool("if this is a full system simulation")
63
64 # Time syncing prevents the simulation from running faster than real time.
65 time_sync_enable = Param.Bool(False, "whether time syncing is enabled")
66 time_sync_period = Param.Clock("100ms", "how often to sync with real time")
67 time_sync_spin_threshold = \
68 Param.Clock("100us", "when less than this much time is left, spin")
| 62
63 full_system = Param.Bool("if this is a full system simulation")
64
65 # Time syncing prevents the simulation from running faster than real time.
66 time_sync_enable = Param.Bool(False, "whether time syncing is enabled")
67 time_sync_period = Param.Clock("100ms", "how often to sync with real time")
68 time_sync_spin_threshold = \
69 Param.Clock("100us", "when less than this much time is left, spin")
|