QoSPolicy.py revision 12968
112966SMatteo.Andreozzi@arm.com# Copyright (c) 2018 ARM Limited 212966SMatteo.Andreozzi@arm.com# All rights reserved. 312966SMatteo.Andreozzi@arm.com# 412966SMatteo.Andreozzi@arm.com# The license below extends only to copyright in the software and shall 512966SMatteo.Andreozzi@arm.com# not be construed as granting a license to any other intellectual 612966SMatteo.Andreozzi@arm.com# property including but not limited to intellectual property relating 712966SMatteo.Andreozzi@arm.com# to a hardware implementation of the functionality of the software 812966SMatteo.Andreozzi@arm.com# licensed hereunder. You may use the software subject to the license 912966SMatteo.Andreozzi@arm.com# terms below provided that you ensure that this notice is replicated 1012966SMatteo.Andreozzi@arm.com# unmodified and in its entirety in all distributions of the software, 1112966SMatteo.Andreozzi@arm.com# modified or unmodified, in source code or in binary form. 1212966SMatteo.Andreozzi@arm.com# 1312966SMatteo.Andreozzi@arm.com# Redistribution and use in source and binary forms, with or without 1412966SMatteo.Andreozzi@arm.com# modification, are permitted provided that the following conditions are 1512966SMatteo.Andreozzi@arm.com# met: redistributions of source code must retain the above copyright 1612966SMatteo.Andreozzi@arm.com# notice, this list of conditions and the following disclaimer; 1712966SMatteo.Andreozzi@arm.com# redistributions in binary form must reproduce the above copyright 1812966SMatteo.Andreozzi@arm.com# notice, this list of conditions and the following disclaimer in the 1912966SMatteo.Andreozzi@arm.com# documentation and/or other materials provided with the distribution; 2012966SMatteo.Andreozzi@arm.com# neither the name of the copyright holders nor the names of its 2112966SMatteo.Andreozzi@arm.com# contributors may be used to endorse or promote products derived from 2212966SMatteo.Andreozzi@arm.com# this software without specific prior written permission. 2312966SMatteo.Andreozzi@arm.com# 2412966SMatteo.Andreozzi@arm.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2512966SMatteo.Andreozzi@arm.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2612966SMatteo.Andreozzi@arm.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2712966SMatteo.Andreozzi@arm.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2812966SMatteo.Andreozzi@arm.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2912966SMatteo.Andreozzi@arm.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3012966SMatteo.Andreozzi@arm.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3112966SMatteo.Andreozzi@arm.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3212966SMatteo.Andreozzi@arm.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3312966SMatteo.Andreozzi@arm.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3412966SMatteo.Andreozzi@arm.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3512966SMatteo.Andreozzi@arm.com# 3612966SMatteo.Andreozzi@arm.com# Authors: Giacomo Travaglini 3712966SMatteo.Andreozzi@arm.com 3812966SMatteo.Andreozzi@arm.comfrom m5.SimObject import * 3912968Sgiacomo.travaglini@arm.comfrom m5.params import * 4012966SMatteo.Andreozzi@arm.com 4112966SMatteo.Andreozzi@arm.com# QoS scheduler policy used to serve incoming transaction 4212966SMatteo.Andreozzi@arm.comclass QoSPolicy(SimObject): 4312966SMatteo.Andreozzi@arm.com type = 'QoSPolicy' 4412966SMatteo.Andreozzi@arm.com abstract = True 4512966SMatteo.Andreozzi@arm.com cxx_header = "mem/qos/policy.hh" 4612966SMatteo.Andreozzi@arm.com cxx_class = 'QoS::Policy' 4712968Sgiacomo.travaglini@arm.com 4812968Sgiacomo.travaglini@arm.comclass QoSFixedPriorityPolicy(QoSPolicy): 4912968Sgiacomo.travaglini@arm.com type = 'QoSFixedPriorityPolicy' 5012968Sgiacomo.travaglini@arm.com cxx_header = "mem/qos/policy_fixed_prio.hh" 5112968Sgiacomo.travaglini@arm.com cxx_class = 'QoS::FixedPriorityPolicy' 5212968Sgiacomo.travaglini@arm.com 5312968Sgiacomo.travaglini@arm.com cxx_exports = [ 5412968Sgiacomo.travaglini@arm.com PyBindMethod('initMasterName'), 5512968Sgiacomo.travaglini@arm.com PyBindMethod('initMasterObj'), 5612968Sgiacomo.travaglini@arm.com ] 5712968Sgiacomo.travaglini@arm.com 5812968Sgiacomo.travaglini@arm.com _mpriorities = None 5912968Sgiacomo.travaglini@arm.com 6012968Sgiacomo.travaglini@arm.com def setMasterPriority(self, master, priority): 6112968Sgiacomo.travaglini@arm.com if not self._mpriorities: 6212968Sgiacomo.travaglini@arm.com self._mpriorities = [] 6312968Sgiacomo.travaglini@arm.com 6412968Sgiacomo.travaglini@arm.com self._mpriorities.append([master, priority]) 6512968Sgiacomo.travaglini@arm.com 6612968Sgiacomo.travaglini@arm.com def init(self): 6712968Sgiacomo.travaglini@arm.com if not self._mpriorities: 6812968Sgiacomo.travaglini@arm.com print("Error, use setMasterPriority to init masters/priorities\n"); 6912968Sgiacomo.travaglini@arm.com exit(1) 7012968Sgiacomo.travaglini@arm.com else: 7112968Sgiacomo.travaglini@arm.com for mprio in self._mpriorities: 7212968Sgiacomo.travaglini@arm.com master = mprio[0] 7312968Sgiacomo.travaglini@arm.com priority = mprio[1] 7412968Sgiacomo.travaglini@arm.com if isinstance(master, basestring): 7512968Sgiacomo.travaglini@arm.com self.getCCObject().initMasterName( 7612968Sgiacomo.travaglini@arm.com master, int(priority)) 7712968Sgiacomo.travaglini@arm.com else: 7812968Sgiacomo.travaglini@arm.com self.getCCObject().initMasterObj( 7912968Sgiacomo.travaglini@arm.com master.getCCObject(), priority) 8012968Sgiacomo.travaglini@arm.com 8112968Sgiacomo.travaglini@arm.com # default fixed priority value for non-listed Masters 8212968Sgiacomo.travaglini@arm.com qos_fixed_prio_default_prio = Param.UInt8(0, 8312968Sgiacomo.travaglini@arm.com "Default priority for non-listed Masters") 84