1# Copyright (c) 2007 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
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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: Nathan Binkert
28
29from __future__ import print_function
30
31import sys
32from m5.util import warn
33
34# fix the global frequency
35def fixGlobalFrequency():
36 import _m5.core
37 _m5.core.fixClockFrequency()
38
39def setGlobalFrequency(ticksPerSecond):
40 from m5.util import convert
41 import _m5.core
42
43 if isinstance(ticksPerSecond, (int, long)):
44 tps = ticksPerSecond
45 elif isinstance(ticksPerSecond, float):
46 tps = ticksPerSecond
47 elif isinstance(ticksPerSecond, str):
48 tps = round(convert.anyToFrequency(ticksPerSecond))
49 else:
| 1# Copyright (c) 2007 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
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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: Nathan Binkert
28
29from __future__ import print_function
30
31import sys
32from m5.util import warn
33
34# fix the global frequency
35def fixGlobalFrequency():
36 import _m5.core
37 _m5.core.fixClockFrequency()
38
39def setGlobalFrequency(ticksPerSecond):
40 from m5.util import convert
41 import _m5.core
42
43 if isinstance(ticksPerSecond, (int, long)):
44 tps = ticksPerSecond
45 elif isinstance(ticksPerSecond, float):
46 tps = ticksPerSecond
47 elif isinstance(ticksPerSecond, str):
48 tps = round(convert.anyToFrequency(ticksPerSecond))
49 else:
|
50 raise TypeError, \
51 "wrong type '%s' for ticksPerSecond" % type(ticksPerSecond)
| 50 raise TypeError(
51 "wrong type '%s' for ticksPerSecond" % type(ticksPerSecond))
|
52 _m5.core.setClockFrequency(int(tps))
53
54# how big does a rounding error need to be before we warn about it?
55frequency_tolerance = 0.001 # 0.1%
56
57def fromSeconds(value):
58 import _m5.core
59
60 if not isinstance(value, float):
| 52 _m5.core.setClockFrequency(int(tps))
53
54# how big does a rounding error need to be before we warn about it?
55frequency_tolerance = 0.001 # 0.1%
56
57def fromSeconds(value):
58 import _m5.core
59
60 if not isinstance(value, float):
|
61 raise TypeError, "can't convert '%s' to type tick" % type(value)
| 61 raise TypeError("can't convert '%s' to type tick" % type(value))
|
62
63 # once someone needs to convert to seconds, the global frequency
64 # had better be fixed
65 if not _m5.core.clockFrequencyFixed():
| 62
63 # once someone needs to convert to seconds, the global frequency
64 # had better be fixed
65 if not _m5.core.clockFrequencyFixed():
|
66 raise AttributeError, \
67 "In order to do conversions, the global frequency must be fixed"
| 66 raise AttributeError(
67 "In order to do conversions, the global frequency must be fixed")
|
68
69 if value == 0:
70 return 0
71
72 # convert the value from time to ticks
73 value *= _m5.core.getClockFrequency()
74
75 int_value = int(round(value))
76 err = (value - int_value) / value
77 if err > frequency_tolerance:
78 warn("rounding error > tolerance\n %f rounded to %d", value,
79 int_value)
80 return int_value
81
82__all__ = [ 'setGlobalFrequency', 'fixGlobalFrequency', 'fromSeconds',
83 'frequency_tolerance' ]
| 68
69 if value == 0:
70 return 0
71
72 # convert the value from time to ticks
73 value *= _m5.core.getClockFrequency()
74
75 int_value = int(round(value))
76 err = (value - int_value) / value
77 if err > frequency_tolerance:
78 warn("rounding error > tolerance\n %f rounded to %d", value,
79 int_value)
80 return int_value
81
82__all__ = [ 'setGlobalFrequency', 'fixGlobalFrequency', 'fromSeconds',
83 'frequency_tolerance' ]
|