e73655d038
This patch has been generated by applying flynt to the gem5 repo (ext has been excluded) JIRA: https://gem5.atlassian.net/browse/GEM5-831 Change-Id: I0935db6223d5426b99515959bde78e374cbadb04 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/68957 Maintainer: Bobby Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
# Copyright (c) 2007 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import decimal
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import sys
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from m5.util import warn
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# fix the global frequency
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def fixGlobalFrequency():
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import _m5.core
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_m5.core.fixClockFrequency()
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def setGlobalFrequency(ticksPerSecond):
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from m5.util import convert
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import _m5.core
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if isinstance(ticksPerSecond, int):
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tps = ticksPerSecond
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elif isinstance(ticksPerSecond, float):
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tps = ticksPerSecond
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elif isinstance(ticksPerSecond, str):
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tps = round(convert.anyToFrequency(ticksPerSecond))
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else:
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raise TypeError(
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f"wrong type '{type(ticksPerSecond)}' for ticksPerSecond"
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)
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_m5.core.setClockFrequency(int(tps))
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# how big does a rounding error need to be before we warn about it?
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frequency_tolerance = 0.001 # 0.1%
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def fromSeconds(value):
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import _m5.core
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if not isinstance(value, float):
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raise TypeError(f"can't convert '{type(value)}' to type tick")
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# once someone needs to convert to seconds, the global frequency
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# had better be fixed
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if not _m5.core.clockFrequencyFixed():
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raise AttributeError(
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"In order to do conversions, the global frequency must be fixed"
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)
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if value == 0:
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return 0
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# convert the value from time to ticks
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value *= _m5.core.getClockFrequency()
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int_value = int(
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decimal.Decimal(value).to_integral_value(decimal.ROUND_HALF_UP)
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)
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err = (value - int_value) / value
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if err > frequency_tolerance:
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warn(
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"rounding error > tolerance\n %f rounded to %d",
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value,
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int_value,
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)
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return int_value
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__all__ = [
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"setGlobalFrequency",
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"fixGlobalFrequency",
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"fromSeconds",
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"frequency_tolerance",
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]
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