intmath.hh File Reference

#include <cassert>
#include <cstdint>
#include <type_traits>
#include "base/logging.hh"
#include "base/types.hh"

Go to the source code of this file.

Functions
uint64_t	power (uint32_t n, uint32_t e)
template<class T >
std::enable_if< std::is_integral< T >::value, int >::type	floorLog2 (T x)
template<class T >
int	ceilLog2 (const T &n)
template<class T >
bool	isPowerOf2 (const T &n)
template<class T , class U >
T	divCeil (const T &a, const U &b)
template<class T , class U >
T	roundUp (const T &val, const U &align)
	This function is used to align addresses in memory. More...
template<class T , class U >
T	roundDown (const T &val, const U &align)
	This function is used to align addresses in memory. More...

Function Documentation

ceilLog2()

template<class T >

int ceilLog2 ( const T &  n )

inline

Definition at line 79 of file intmath.hh.

References floorLog2().

Referenced by DRAMCtrl::addToReadQueue(), DRAMCtrl::addToWriteQueue(), DRAMCtrl::DRAMCtrl(), TimingExprUn::eval(), DRAMCtrl::DRAMStats::regStats(), and TEST().

divCeil()

template<class T , class U >

T divCeil ( const T &  a, const U &  b  )

inline

Definition at line 99 of file intmath.hh.

References ArmISA::b.

Referenced by DRAMCtrl::activateBank(), Process::allocateMem(), BaseXBar::calcPacketTiming(), DRAMCtrl::doDRAMAccess(), QoS::MemCtrl::escalateQueues(), DRAMCtrl::Rank::flushCmdList(), DRAMPower::getDataRate(), DRAMPower::getTimingParams(), Gicv3Distributor::Gicv3Distributor(), TrafficGen::parseConfig(), DRAMCtrl::Rank::powerDownSleep(), DRAMCtrl::prechargeBank(), QoS::MemSinkCtrl::processNextReqEvent(), DRAMCtrl::Rank::processRefreshEvent(), DRAMSim2::readComplete(), SerialLink::SerialLinkSlavePort::recvTimingReq(), QoS::MemSinkCtrl::recvTimingReq(), DRAMCtrl::recvTimingReq(), SerialLink::SerialLinkMasterPort::recvTimingResp(), Clocked::resetClock(), DRAMCtrl::Rank::resetStats(), DRAMCtrl::Rank::scheduleWakeUpEvent(), DRAMCtrl::startup(), ComputeUnit::startWavefront(), TEST(), AtomicSimpleCPU::tick(), Clocked::ticksToCycles(), SerialLink::SerialLinkSlavePort::trySendTiming(), SerialLink::SerialLinkMasterPort::trySendTiming(), Clocked::update(), DRAMCtrl::Rank::updatePowerStats(), GpuDispatcher::write(), and DRAMSim2::writeComplete().

floorLog2()

template<class T >

std::enable_if<std::is_integral<T>::value, int>::type floorLog2 ( T  x )

inline

Definition at line 57 of file intmath.hh.

References ArmISA::ts, type, ULL, and MipsISA::ux.

Referenced by Histogram::add(), CheckTable::addCheck(), BankedArray::BankedArray(), ceilLog2(), DefaultBTB::DefaultBTB(), DirectoryMemory::DirectoryMemory(), SimpleIndirectPredictor::getSetIndex(), Gicv2m::Gicv2m(), StackDistProbe::handleRequest(), Prefetcher::BOP::hash(), CacheMemory::init(), RubySystem::RubySystem(), Prefetcher::Base::setCache(), and TEST().

isPowerOf2()

template<class T >

bool isPowerOf2 ( const T &  n )

inline

Definition at line 90 of file intmath.hh.

Referenced by Prefetcher::AccessMapPatternMatching::AccessMapPatternMatching(), AssociativeSet< Prefetcher::IrregularStreamBuffer::AddressMappingEntry >::AssociativeSet(), BaseIndexingPolicy::BaseIndexingPolicy(), BaseSetAssoc::BaseSetAssoc(), BiModeBP::BiModeBP(), Prefetcher::BOP::BOP(), ChunkGenerator::ChunkGenerator(), ComputeUnit::ComputeUnit(), DefaultBTB::DefaultBTB(), DRAMCtrl::DRAMCtrl(), EmulationPageTable::EmulationPageTable(), FALRU::FALRU(), Gicv2m::Gicv2m(), StatisticalCorrector::SCThreadHistory::initLocalHistory(), Prefetcher::IrregularStreamBuffer::IrregularStreamBuffer(), LocalBP::LocalBP(), MemFootprintProbe::MemFootprintProbe(), PciDevice::PciDevice(), roundDown(), roundUp(), RubySystem::RubySystem(), SectorTags::SectorTags(), SimpleIndirectPredictor::SimpleIndirectPredictor(), Prefetcher::STeMS::STeMS(), StoreSet::StoreSet(), TEST(), TournamentBP::TournamentBP(), TreePLRURP::TreePLRURP(), and StackDistCalc::updateTree().

power()

uint64_t power ( uint32_t  n, uint32_t  e  )

inline

Definition at line 40 of file intmath.hh.

References ArmISA::n, type, and warn_if.

Referenced by PowerModel::getDynamicPower(), ThermalDomain::getEquation(), PowerModel::getStaticPower(), Sp804::Timer::read(), CpuLocalTimer::Timer::read(), Sp804::Timer::restartCounter(), CpuLocalTimer::Timer::restartTimerCounter(), CpuLocalTimer::Timer::restartWatchdogCounter(), and TEST().

roundDown()

template<class T , class U >

T roundDown ( const T &  val, const U &  align  )

inline

This function is used to align addresses in memory.

Parameters

val	is the address to be aligned.
align	is the alignment. Can only be a power of 2.

Returns

The aligned address. The biggest number divisible by

Parameters

align	which is less than or equal to
val.

Definition at line 131 of file intmath.hh.

References isPowerOf2(), and ArmISA::mask.

Referenced by AtomicSimpleCPU::amoMem(), RiscvProcess::argsInit(), MipsProcess::argsInit(), PowerProcess::argsInit(), SparcProcess::argsInit(), ArmProcess::argsInit(), X86ISA::X86Process::argsInit(), TLBCoalescer::canCoalesce(), Shader::doFunctionalAccess(), SETranslatingPortProxy::fixupAddr(), MemState::fixupFault(), X86ISA::GpuTLB::handleFuncTranslationReturn(), StackDistProbe::handleRequest(), FetchUnit::initiateFetch(), TimingSimpleCPU::initiateMemAMO(), TimingSimpleCPU::initiateMemRead(), Gcn3ISA::Inst_SMEM::initMemRead(), Gcn3ISA::Inst_SMEM::initMemWrite(), X86ISA::GpuTLB::issueTLBLookup(), BaseCPU::mwaitAtomic(), Prefetcher::Base::pageAddress(), TLBCoalescer::processProbeTLBEvent(), TLBCoalescer::CpuSidePort::recvFunctional(), X86ISA::GpuTLB::CpuSidePort::recvFunctional(), X86ISA::GpuTLB::MemSidePort::recvTimingResp(), ComputeUnit::DTLBPort::recvTimingResp(), Prefetcher::Base::samePage(), TEST(), ComputeUnit::updatePageDivergenceDist(), TLBCoalescer::updatePhysAddresses(), and TimingSimpleCPU::writeMem().

roundUp()

template<class T , class U >

T roundUp ( const T &  val, const U &  align  )

inline

This function is used to align addresses in memory.

Parameters

val	is the address to be aligned.
align	is the alignment. Can only be a power of 2.

Returns

The aligned address. The smallest number divisible by

Parameters

align	which is greater than or equal to
val.

Definition at line 114 of file intmath.hh.

References isPowerOf2(), and ArmISA::mask.

Referenced by StorageSpace::addSymbol(), MipsProcess::argsInit(), RiscvProcess::argsInit(), PowerProcess::argsInit(), SparcProcess::argsInit(), ArmProcess::argsInit(), X86ISA::X86Process::argsInit(), ArmProcess32::ArmProcess32(), ArmProcess64::ArmProcess64(), ChunkGenerator::ChunkGenerator(), HsailCode::generateHsaKernelInfo(), GuestABI::Argument< Aapcs32, Composite, typename std::enable_if< IsAapcs32Composite< Composite >::value >::type >::get(), X86ISA::I386Process::I386Process(), X86ISA::FsWorkload::initState(), GuestABI::Aapcs32ArgumentBase::loadFromStack(), MipsProcess::MipsProcess(), Shader::mmap(), mmapFunc(), mremapFunc(), munmapFunc(), PowerProcess::PowerProcess(), RiscvProcess32::RiscvProcess32(), RiscvProcess64::RiscvProcess64(), Sparc32Process::Sparc32Process(), Sparc64Process::Sparc64Process(), TEST(), Process::updateBias(), MemState::updateBrkRegion(), and X86ISA::X86_64Process::X86_64Process().