system.cc revision 8806
12689Sktlim@umich.edu/*
28703Sandreas.hansson@arm.com * Copyright (c) 2011-2012 ARM Limited
38666SPrakash.Ramrakhyani@arm.com * All rights reserved
48666SPrakash.Ramrakhyani@arm.com *
58666SPrakash.Ramrakhyani@arm.com * The license below extends only to copyright in the software and shall
68666SPrakash.Ramrakhyani@arm.com * not be construed as granting a license to any other intellectual
78666SPrakash.Ramrakhyani@arm.com * property including but not limited to intellectual property relating
88666SPrakash.Ramrakhyani@arm.com * to a hardware implementation of the functionality of the software
98666SPrakash.Ramrakhyani@arm.com * licensed hereunder.  You may use the software subject to the license
108666SPrakash.Ramrakhyani@arm.com * terms below provided that you ensure that this notice is replicated
118666SPrakash.Ramrakhyani@arm.com * unmodified and in its entirety in all distributions of the software,
128666SPrakash.Ramrakhyani@arm.com * modified or unmodified, in source code or in binary form.
138666SPrakash.Ramrakhyani@arm.com *
142689Sktlim@umich.edu * Copyright (c) 2003-2006 The Regents of The University of Michigan
157897Shestness@cs.utexas.edu * Copyright (c) 2011 Regents of the University of California
162689Sktlim@umich.edu * All rights reserved.
172689Sktlim@umich.edu *
182689Sktlim@umich.edu * Redistribution and use in source and binary forms, with or without
192689Sktlim@umich.edu * modification, are permitted provided that the following conditions are
202689Sktlim@umich.edu * met: redistributions of source code must retain the above copyright
212689Sktlim@umich.edu * notice, this list of conditions and the following disclaimer;
222689Sktlim@umich.edu * redistributions in binary form must reproduce the above copyright
232689Sktlim@umich.edu * notice, this list of conditions and the following disclaimer in the
242689Sktlim@umich.edu * documentation and/or other materials provided with the distribution;
252689Sktlim@umich.edu * neither the name of the copyright holders nor the names of its
262689Sktlim@umich.edu * contributors may be used to endorse or promote products derived from
272689Sktlim@umich.edu * this software without specific prior written permission.
282689Sktlim@umich.edu *
292689Sktlim@umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
302689Sktlim@umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
312689Sktlim@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
322689Sktlim@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
332689Sktlim@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
342689Sktlim@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
352689Sktlim@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
362689Sktlim@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
372689Sktlim@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
382689Sktlim@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
392689Sktlim@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
402689Sktlim@umich.edu *
412689Sktlim@umich.edu * Authors: Steve Reinhardt
422689Sktlim@umich.edu *          Lisa Hsu
432689Sktlim@umich.edu *          Nathan Binkert
442689Sktlim@umich.edu *          Ali Saidi
457897Shestness@cs.utexas.edu *          Rick Strong
462689Sktlim@umich.edu */
472689Sktlim@umich.edu
482521SN/A#include "arch/isa_traits.hh"
493960Sgblack@eecs.umich.edu#include "arch/remote_gdb.hh"
504194Ssaidi@eecs.umich.edu#include "arch/utility.hh"
518769Sgblack@eecs.umich.edu#include "arch/vtophys.hh"
521070SN/A#include "base/loader/object_file.hh"
531070SN/A#include "base/loader/symtab.hh"
542521SN/A#include "base/trace.hh"
556658Snate@binkert.org#include "config/the_isa.hh"
568229Snate@binkert.org#include "cpu/thread_context.hh"
578232Snate@binkert.org#include "debug/Loader.hh"
588666SPrakash.Ramrakhyani@arm.com#include "debug/WorkItems.hh"
598769Sgblack@eecs.umich.edu#include "kern/kernel_stats.hh"
608799Sgblack@eecs.umich.edu#include "mem/fs_translating_port_proxy.hh"
612521SN/A#include "mem/mem_object.hh"
622522SN/A#include "mem/physical.hh"
638769Sgblack@eecs.umich.edu#include "params/System.hh"
642037SN/A#include "sim/byteswap.hh"
658229Snate@binkert.org#include "sim/debug.hh"
668769Sgblack@eecs.umich.edu#include "sim/full_system.hh"
6756SN/A#include "sim/system.hh"
686658Snate@binkert.org
692SN/Ausing namespace std;
702107SN/Ausing namespace TheISA;
712SN/A
722SN/Avector<System *> System::systemList;
732SN/A
742SN/Aint System::numSystemsRunning = 0;
752SN/A
761070SN/ASystem::System(Params *p)
778703Sandreas.hansson@arm.com    : MemObject(p), _systemPort("system_port", this),
788703Sandreas.hansson@arm.com      physmem(p->physmem),
798703Sandreas.hansson@arm.com      _numContexts(0),
802521SN/A      init_param(p->init_param),
817580SAli.Saidi@arm.com      loadAddrMask(p->load_addr_mask),
827770SAli.Saidi@ARM.com      nextPID(0),
837914SBrad.Beckmann@amd.com      memoryMode(p->mem_mode),
847914SBrad.Beckmann@amd.com      workItemsBegin(0),
857914SBrad.Beckmann@amd.com      workItemsEnd(0),
868666SPrakash.Ramrakhyani@arm.com      numWorkIds(p->num_work_ids),
877914SBrad.Beckmann@amd.com      _params(p),
888666SPrakash.Ramrakhyani@arm.com      totalNumInsts(0),
897897Shestness@cs.utexas.edu      instEventQueue("system instruction-based event queue")
902SN/A{
911070SN/A    // add self to global system list
921070SN/A    systemList.push_back(this);
931070SN/A
948460SAli.Saidi@ARM.com    /** Keep track of all memories we can execute code out of
958460SAli.Saidi@ARM.com     * in our system
968460SAli.Saidi@ARM.com     */
978460SAli.Saidi@ARM.com    for (int x = 0; x < p->memories.size(); x++) {
988460SAli.Saidi@ARM.com        if (!p->memories[x])
998460SAli.Saidi@ARM.com            continue;
1008460SAli.Saidi@ARM.com        memRanges.push_back(RangeSize(p->memories[x]->start(),
1018460SAli.Saidi@ARM.com                                      p->memories[x]->size()));
1028460SAli.Saidi@ARM.com    }
1038460SAli.Saidi@ARM.com
1048769Sgblack@eecs.umich.edu    if (FullSystem) {
1058769Sgblack@eecs.umich.edu        kernelSymtab = new SymbolTable;
1068769Sgblack@eecs.umich.edu        if (!debugSymbolTable)
1078769Sgblack@eecs.umich.edu            debugSymbolTable = new SymbolTable;
1081070SN/A
1098769Sgblack@eecs.umich.edu        /**
1108799Sgblack@eecs.umich.edu         * Get a port proxy to memory
1118769Sgblack@eecs.umich.edu         */
1128799Sgblack@eecs.umich.edu        physProxy = new PortProxy(*getSystemPort());
1138799Sgblack@eecs.umich.edu        virtProxy = new FSTranslatingPortProxy(*getSystemPort());
1148666SPrakash.Ramrakhyani@arm.com    }
1152SN/A}
1162SN/A
1172SN/ASystem::~System()
1182SN/A{
1191070SN/A    delete kernelSymtab;
1201070SN/A    delete kernel;
1218666SPrakash.Ramrakhyani@arm.com
1228666SPrakash.Ramrakhyani@arm.com    for (uint32_t j = 0; j < numWorkIds; j++)
1238666SPrakash.Ramrakhyani@arm.com        delete workItemStats[j];
1242SN/A}
1252SN/A
1268706Sandreas.hansson@arm.comvoid
1278706Sandreas.hansson@arm.comSystem::init()
1288706Sandreas.hansson@arm.com{
1298706Sandreas.hansson@arm.com    // check that the system port is connected
1308706Sandreas.hansson@arm.com    if (!_systemPort.isConnected())
1318706Sandreas.hansson@arm.com        panic("System port on %s is not connected.\n", name());
1328706Sandreas.hansson@arm.com}
1338706Sandreas.hansson@arm.com
1348703Sandreas.hansson@arm.comPort*
1358703Sandreas.hansson@arm.comSystem::getPort(const std::string &if_name, int idx)
1368703Sandreas.hansson@arm.com{
1378703Sandreas.hansson@arm.com    // no need to distinguish at the moment (besides checking)
1388703Sandreas.hansson@arm.com    return &_systemPort;
1398703Sandreas.hansson@arm.com}
1408703Sandreas.hansson@arm.com
1412901Ssaidi@eecs.umich.eduvoid
1424762Snate@binkert.orgSystem::setMemoryMode(Enums::MemoryMode mode)
1432901Ssaidi@eecs.umich.edu{
1442901Ssaidi@eecs.umich.edu    assert(getState() == Drained);
1452901Ssaidi@eecs.umich.edu    memoryMode = mode;
1462901Ssaidi@eecs.umich.edu}
1472901Ssaidi@eecs.umich.edu
1483960Sgblack@eecs.umich.edubool System::breakpoint()
1493960Sgblack@eecs.umich.edu{
1504095Sbinkertn@umich.edu    if (remoteGDB.size())
1514095Sbinkertn@umich.edu        return remoteGDB[0]->breakpoint();
1524095Sbinkertn@umich.edu    return false;
1533960Sgblack@eecs.umich.edu}
1543960Sgblack@eecs.umich.edu
1557445Ssteve.reinhardt@amd.com/**
1567445Ssteve.reinhardt@amd.com * Setting rgdb_wait to a positive integer waits for a remote debugger to
1577445Ssteve.reinhardt@amd.com * connect to that context ID before continuing.  This should really
1587445Ssteve.reinhardt@amd.com   be a parameter on the CPU object or something...
1597445Ssteve.reinhardt@amd.com */
1607445Ssteve.reinhardt@amd.comint rgdb_wait = -1;
1617445Ssteve.reinhardt@amd.com
162180SN/Aint
1635718Shsul@eecs.umich.eduSystem::registerThreadContext(ThreadContext *tc, int assigned)
1642SN/A{
1655712Shsul@eecs.umich.edu    int id;
1665718Shsul@eecs.umich.edu    if (assigned == -1) {
1675718Shsul@eecs.umich.edu        for (id = 0; id < threadContexts.size(); id++) {
1685718Shsul@eecs.umich.edu            if (!threadContexts[id])
1695718Shsul@eecs.umich.edu                break;
1705718Shsul@eecs.umich.edu        }
1715718Shsul@eecs.umich.edu
1725718Shsul@eecs.umich.edu        if (threadContexts.size() <= id)
1735718Shsul@eecs.umich.edu            threadContexts.resize(id + 1);
1745718Shsul@eecs.umich.edu    } else {
1755718Shsul@eecs.umich.edu        if (threadContexts.size() <= assigned)
1765718Shsul@eecs.umich.edu            threadContexts.resize(assigned + 1);
1775718Shsul@eecs.umich.edu        id = assigned;
1781806SN/A    }
1791806SN/A
1802680Sktlim@umich.edu    if (threadContexts[id])
1815823Ssaidi@eecs.umich.edu        fatal("Cannot have two CPUs with the same id (%d)\n", id);
1821806SN/A
1832680Sktlim@umich.edu    threadContexts[id] = tc;
1845714Shsul@eecs.umich.edu    _numContexts++;
1851070SN/A
1865512SMichael.Adler@intel.com    int port = getRemoteGDBPort();
1877445Ssteve.reinhardt@amd.com    if (port) {
1884095Sbinkertn@umich.edu        RemoteGDB *rgdb = new RemoteGDB(this, tc);
1895512SMichael.Adler@intel.com        GDBListener *gdbl = new GDBListener(rgdb, port + id);
1904095Sbinkertn@umich.edu        gdbl->listen();
1917445Ssteve.reinhardt@amd.com
1924095Sbinkertn@umich.edu        if (rgdb_wait != -1 && rgdb_wait == id)
1934095Sbinkertn@umich.edu            gdbl->accept();
1941070SN/A
1954095Sbinkertn@umich.edu        if (remoteGDB.size() <= id) {
1964095Sbinkertn@umich.edu            remoteGDB.resize(id + 1);
1974095Sbinkertn@umich.edu        }
1984095Sbinkertn@umich.edu
1994095Sbinkertn@umich.edu        remoteGDB[id] = rgdb;
2001070SN/A    }
2011070SN/A
2027914SBrad.Beckmann@amd.com    activeCpus.push_back(false);
2037914SBrad.Beckmann@amd.com
2041806SN/A    return id;
205180SN/A}
20675SN/A
2076029Ssteve.reinhardt@amd.comint
2086029Ssteve.reinhardt@amd.comSystem::numRunningContexts()
2096029Ssteve.reinhardt@amd.com{
2106029Ssteve.reinhardt@amd.com    int running = 0;
2116029Ssteve.reinhardt@amd.com    for (int i = 0; i < _numContexts; ++i) {
2126029Ssteve.reinhardt@amd.com        if (threadContexts[i]->status() != ThreadContext::Halted)
2136029Ssteve.reinhardt@amd.com            ++running;
2146029Ssteve.reinhardt@amd.com    }
2156029Ssteve.reinhardt@amd.com    return running;
2166029Ssteve.reinhardt@amd.com}
2176029Ssteve.reinhardt@amd.com
218180SN/Avoid
2197733SAli.Saidi@ARM.comSystem::initState()
2201129SN/A{
2218806Sgblack@eecs.umich.edu    int i;
2228769Sgblack@eecs.umich.edu    if (FullSystem) {
2238769Sgblack@eecs.umich.edu        for (i = 0; i < threadContexts.size(); i++)
2248769Sgblack@eecs.umich.edu            TheISA::startupCPU(threadContexts[i], i);
2258799Sgblack@eecs.umich.edu        // Moved from the constructor to here since it relies on the
2268799Sgblack@eecs.umich.edu        // address map being resolved in the interconnect
2278799Sgblack@eecs.umich.edu        /**
2288799Sgblack@eecs.umich.edu         * Load the kernel code into memory
2298799Sgblack@eecs.umich.edu         */
2308799Sgblack@eecs.umich.edu        if (params()->kernel == "") {
2318799Sgblack@eecs.umich.edu            inform("No kernel set for full system simulation. "
2328799Sgblack@eecs.umich.edu                    "Assuming you know what you're doing...\n");
2338799Sgblack@eecs.umich.edu        } else {
2348799Sgblack@eecs.umich.edu            // Load kernel code
2358799Sgblack@eecs.umich.edu            kernel = createObjectFile(params()->kernel);
2368799Sgblack@eecs.umich.edu            inform("kernel located at: %s", params()->kernel);
2378706Sandreas.hansson@arm.com
2388799Sgblack@eecs.umich.edu            if (kernel == NULL)
2398799Sgblack@eecs.umich.edu                fatal("Could not load kernel file %s", params()->kernel);
2408706Sandreas.hansson@arm.com
2418799Sgblack@eecs.umich.edu            // Load program sections into memory
2428799Sgblack@eecs.umich.edu            kernel->loadSections(physProxy, loadAddrMask);
2438706Sandreas.hansson@arm.com
2448799Sgblack@eecs.umich.edu            // setup entry points
2458799Sgblack@eecs.umich.edu            kernelStart = kernel->textBase();
2468799Sgblack@eecs.umich.edu            kernelEnd = kernel->bssBase() + kernel->bssSize();
2478799Sgblack@eecs.umich.edu            kernelEntry = kernel->entryPoint();
2488706Sandreas.hansson@arm.com
2498799Sgblack@eecs.umich.edu            // load symbols
2508799Sgblack@eecs.umich.edu            if (!kernel->loadGlobalSymbols(kernelSymtab))
2518799Sgblack@eecs.umich.edu                fatal("could not load kernel symbols\n");
2528706Sandreas.hansson@arm.com
2538799Sgblack@eecs.umich.edu            if (!kernel->loadLocalSymbols(kernelSymtab))
2548799Sgblack@eecs.umich.edu                fatal("could not load kernel local symbols\n");
2558706Sandreas.hansson@arm.com
2568799Sgblack@eecs.umich.edu            if (!kernel->loadGlobalSymbols(debugSymbolTable))
2578799Sgblack@eecs.umich.edu                fatal("could not load kernel symbols\n");
2588706Sandreas.hansson@arm.com
2598799Sgblack@eecs.umich.edu            if (!kernel->loadLocalSymbols(debugSymbolTable))
2608799Sgblack@eecs.umich.edu                fatal("could not load kernel local symbols\n");
2618706Sandreas.hansson@arm.com
2628799Sgblack@eecs.umich.edu            DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
2638799Sgblack@eecs.umich.edu            DPRINTF(Loader, "Kernel end   = %#x\n", kernelEnd);
2648799Sgblack@eecs.umich.edu            DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry);
2658799Sgblack@eecs.umich.edu            DPRINTF(Loader, "Kernel loaded...\n");
2668799Sgblack@eecs.umich.edu        }
2678706Sandreas.hansson@arm.com    }
2688706Sandreas.hansson@arm.com
2698706Sandreas.hansson@arm.com    // increment the number of running systms
2708706Sandreas.hansson@arm.com    numSystemsRunning++;
2718706Sandreas.hansson@arm.com
2728706Sandreas.hansson@arm.com    activeCpus.clear();
2738706Sandreas.hansson@arm.com
2748806Sgblack@eecs.umich.edu    if (!FullSystem)
2758806Sgblack@eecs.umich.edu        return;
2768806Sgblack@eecs.umich.edu
2778806Sgblack@eecs.umich.edu    for (i = 0; i < threadContexts.size(); i++)
2788806Sgblack@eecs.umich.edu        TheISA::startupCPU(threadContexts[i], i);
2791129SN/A}
2801129SN/A
2811129SN/Avoid
2825713Shsul@eecs.umich.eduSystem::replaceThreadContext(ThreadContext *tc, int context_id)
283180SN/A{
2845713Shsul@eecs.umich.edu    if (context_id >= threadContexts.size()) {
2852680Sktlim@umich.edu        panic("replaceThreadContext: bad id, %d >= %d\n",
2865713Shsul@eecs.umich.edu              context_id, threadContexts.size());
287180SN/A    }
288180SN/A
2895713Shsul@eecs.umich.edu    threadContexts[context_id] = tc;
2905713Shsul@eecs.umich.edu    if (context_id < remoteGDB.size())
2915713Shsul@eecs.umich.edu        remoteGDB[context_id]->replaceThreadContext(tc);
2922SN/A}
2932SN/A
2942378SN/AAddr
2958601Ssteve.reinhardt@amd.comSystem::allocPhysPages(int npages)
2962378SN/A{
2977770SAli.Saidi@ARM.com    Addr return_addr = pagePtr << LogVMPageSize;
2988601Ssteve.reinhardt@amd.com    pagePtr += npages;
2993162Ssaidi@eecs.umich.edu    if (return_addr >= physmem->size())
3003162Ssaidi@eecs.umich.edu        fatal("Out of memory, please increase size of physical memory.");
3012378SN/A    return return_addr;
3022378SN/A}
3035795Ssaidi@eecs.umich.edu
3045795Ssaidi@eecs.umich.eduAddr
3055795Ssaidi@eecs.umich.eduSystem::memSize()
3065795Ssaidi@eecs.umich.edu{
3075795Ssaidi@eecs.umich.edu    return physmem->size();
3085795Ssaidi@eecs.umich.edu}
3095795Ssaidi@eecs.umich.edu
3105795Ssaidi@eecs.umich.eduAddr
3115795Ssaidi@eecs.umich.eduSystem::freeMemSize()
3125795Ssaidi@eecs.umich.edu{
3137770SAli.Saidi@ARM.com   return physmem->size() - (pagePtr << LogVMPageSize);
3145795Ssaidi@eecs.umich.edu}
3155795Ssaidi@eecs.umich.edu
3168460SAli.Saidi@ARM.combool
3178460SAli.Saidi@ARM.comSystem::isMemory(const Addr addr) const
3188460SAli.Saidi@ARM.com{
3198460SAli.Saidi@ARM.com    std::list<Range<Addr> >::const_iterator i;
3208460SAli.Saidi@ARM.com    for (i = memRanges.begin(); i != memRanges.end(); i++) {
3218460SAli.Saidi@ARM.com        if (*i == addr)
3228460SAli.Saidi@ARM.com            return true;
3238460SAli.Saidi@ARM.com    }
3248460SAli.Saidi@ARM.com    return false;
3258460SAli.Saidi@ARM.com}
3268460SAli.Saidi@ARM.com
3271070SN/Avoid
3287897Shestness@cs.utexas.eduSystem::resume()
3297897Shestness@cs.utexas.edu{
3307897Shestness@cs.utexas.edu    SimObject::resume();
3317897Shestness@cs.utexas.edu    totalNumInsts = 0;
3327897Shestness@cs.utexas.edu}
3337897Shestness@cs.utexas.edu
3347897Shestness@cs.utexas.eduvoid
3351070SN/ASystem::serialize(ostream &os)
3361070SN/A{
3378769Sgblack@eecs.umich.edu    if (FullSystem)
3388769Sgblack@eecs.umich.edu        kernelSymtab->serialize("kernel_symtab", os);
3397770SAli.Saidi@ARM.com    SERIALIZE_SCALAR(pagePtr);
3407770SAli.Saidi@ARM.com    SERIALIZE_SCALAR(nextPID);
3411070SN/A}
3421070SN/A
3431070SN/A
3441070SN/Avoid
3451070SN/ASystem::unserialize(Checkpoint *cp, const string &section)
3461070SN/A{
3478769Sgblack@eecs.umich.edu    if (FullSystem)
3488769Sgblack@eecs.umich.edu        kernelSymtab->unserialize("kernel_symtab", cp, section);
3497770SAli.Saidi@ARM.com    UNSERIALIZE_SCALAR(pagePtr);
3507770SAli.Saidi@ARM.com    UNSERIALIZE_SCALAR(nextPID);
3511070SN/A}
3522SN/A
3532SN/Avoid
3548666SPrakash.Ramrakhyani@arm.comSystem::regStats()
3558666SPrakash.Ramrakhyani@arm.com{
3568666SPrakash.Ramrakhyani@arm.com    for (uint32_t j = 0; j < numWorkIds ; j++) {
3578666SPrakash.Ramrakhyani@arm.com        workItemStats[j] = new Stats::Histogram();
3588666SPrakash.Ramrakhyani@arm.com        stringstream namestr;
3598666SPrakash.Ramrakhyani@arm.com        ccprintf(namestr, "work_item_type%d", j);
3608666SPrakash.Ramrakhyani@arm.com        workItemStats[j]->init(20)
3618666SPrakash.Ramrakhyani@arm.com                         .name(name() + "." + namestr.str())
3628666SPrakash.Ramrakhyani@arm.com                         .desc("Run time stat for" + namestr.str())
3638666SPrakash.Ramrakhyani@arm.com                         .prereq(*workItemStats[j]);
3648666SPrakash.Ramrakhyani@arm.com    }
3658666SPrakash.Ramrakhyani@arm.com}
3668666SPrakash.Ramrakhyani@arm.com
3678666SPrakash.Ramrakhyani@arm.comvoid
3688666SPrakash.Ramrakhyani@arm.comSystem::workItemEnd(uint32_t tid, uint32_t workid)
3698666SPrakash.Ramrakhyani@arm.com{
3708666SPrakash.Ramrakhyani@arm.com    std::pair<uint32_t,uint32_t> p(tid, workid);
3718666SPrakash.Ramrakhyani@arm.com    if (!lastWorkItemStarted.count(p))
3728666SPrakash.Ramrakhyani@arm.com        return;
3738666SPrakash.Ramrakhyani@arm.com
3748666SPrakash.Ramrakhyani@arm.com    Tick samp = curTick() - lastWorkItemStarted[p];
3758666SPrakash.Ramrakhyani@arm.com    DPRINTF(WorkItems, "Work item end: %d\t%d\t%lld\n", tid, workid, samp);
3768666SPrakash.Ramrakhyani@arm.com
3778666SPrakash.Ramrakhyani@arm.com    if (workid >= numWorkIds)
3788666SPrakash.Ramrakhyani@arm.com        fatal("Got workid greater than specified in system configuration\n");
3798666SPrakash.Ramrakhyani@arm.com
3808666SPrakash.Ramrakhyani@arm.com    workItemStats[workid]->sample(samp);
3818666SPrakash.Ramrakhyani@arm.com    lastWorkItemStarted.erase(p);
3828666SPrakash.Ramrakhyani@arm.com}
3838666SPrakash.Ramrakhyani@arm.com
3848666SPrakash.Ramrakhyani@arm.comvoid
3852SN/ASystem::printSystems()
3862SN/A{
3872SN/A    vector<System *>::iterator i = systemList.begin();
3882SN/A    vector<System *>::iterator end = systemList.end();
3892SN/A    for (; i != end; ++i) {
3902SN/A        System *sys = *i;
3912SN/A        cerr << "System " << sys->name() << ": " << hex << sys << endl;
3922SN/A    }
3932SN/A}
3942SN/A
3952SN/Avoid
3962SN/AprintSystems()
3972SN/A{
3982SN/A    System::printSystems();
3992SN/A}
4002SN/A
4012902Ssaidi@eecs.umich.educonst char *System::MemoryModeStrings[3] = {"invalid", "atomic",
4022902Ssaidi@eecs.umich.edu    "timing"};
4032902Ssaidi@eecs.umich.edu
4044762Snate@binkert.orgSystem *
4054762Snate@binkert.orgSystemParams::create()
4062424SN/A{
4075530Snate@binkert.org    return new System(this);
4082424SN/A}
409