pseudo_inst.cc revision 5529
1298SN/A/*
22188SN/A * Copyright (c) 2003-2006 The Regents of The University of Michigan
3298SN/A * All rights reserved.
4298SN/A *
5298SN/A * Redistribution and use in source and binary forms, with or without
6298SN/A * modification, are permitted provided that the following conditions are
7298SN/A * met: redistributions of source code must retain the above copyright
8298SN/A * notice, this list of conditions and the following disclaimer;
9298SN/A * redistributions in binary form must reproduce the above copyright
10298SN/A * notice, this list of conditions and the following disclaimer in the
11298SN/A * documentation and/or other materials provided with the distribution;
12298SN/A * neither the name of the copyright holders nor the names of its
13298SN/A * contributors may be used to endorse or promote products derived from
14298SN/A * this software without specific prior written permission.
15298SN/A *
16298SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17298SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18298SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19298SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20298SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21298SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22298SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23298SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24298SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25298SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26298SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
272665Ssaidi@eecs.umich.edu *
282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert
29298SN/A */
30298SN/A
311642SN/A#include <errno.h>
32954SN/A#include <fcntl.h>
33956SN/A#include <unistd.h>
34956SN/A
354078Sbinkertn@umich.edu#include <fstream>
36299SN/A#include <string>
37299SN/A
385529Snate@binkert.org#include "arch/kernel_stats.hh"
392170SN/A#include "arch/vtophys.hh"
403089Ssaidi@eecs.umich.edu#include "base/annotate.hh"
411717SN/A#include "cpu/base.hh"
422680Sktlim@umich.edu#include "cpu/thread_context.hh"
432313SN/A#include "cpu/quiesce_event.hh"
445529Snate@binkert.org#include "params/BaseCPU.hh"
453565Sgblack@eecs.umich.edu#include "sim/pseudo_inst.hh"
46298SN/A#include "sim/serialize.hh"
47298SN/A#include "sim/sim_exit.hh"
48695SN/A#include "sim/stat_control.hh"
49695SN/A#include "sim/stats.hh"
50954SN/A#include "sim/system.hh"
511052SN/A#include "sim/debug.hh"
522080SN/A#include "sim/vptr.hh"
53298SN/A
54299SN/Ausing namespace std;
551052SN/A
56729SN/Ausing namespace Stats;
572107SN/Ausing namespace TheISA;
58298SN/A
595504Snate@binkert.orgnamespace PseudoInst {
605504Snate@binkert.org
615504Snate@binkert.orgvoid
625504Snate@binkert.orgarm(ThreadContext *tc)
63298SN/A{
645504Snate@binkert.org    if (tc->getKernelStats())
655504Snate@binkert.org        tc->getKernelStats()->arm();
665504Snate@binkert.org}
675504Snate@binkert.org
685504Snate@binkert.orgvoid
695504Snate@binkert.orgquiesce(ThreadContext *tc)
705504Snate@binkert.org{
715529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_quiesce)
725504Snate@binkert.org        return;
735504Snate@binkert.org
745504Snate@binkert.org    DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name());
755504Snate@binkert.org
765504Snate@binkert.org    tc->suspend();
775504Snate@binkert.org    if (tc->getKernelStats())
785504Snate@binkert.org        tc->getKernelStats()->quiesce();
795504Snate@binkert.org}
805504Snate@binkert.org
815504Snate@binkert.orgvoid
825504Snate@binkert.orgquiesceNs(ThreadContext *tc, uint64_t ns)
835504Snate@binkert.org{
845529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_quiesce || ns == 0)
855504Snate@binkert.org        return;
865504Snate@binkert.org
875504Snate@binkert.org    EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
885504Snate@binkert.org
895504Snate@binkert.org    Tick resume = curTick + Clock::Int::ns * ns;
905504Snate@binkert.org
915504Snate@binkert.org    quiesceEvent->reschedule(resume, true);
925504Snate@binkert.org
935504Snate@binkert.org    DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n",
945504Snate@binkert.org            tc->getCpuPtr()->name(), ns, resume);
955504Snate@binkert.org
965504Snate@binkert.org    tc->suspend();
975504Snate@binkert.org    if (tc->getKernelStats())
985504Snate@binkert.org        tc->getKernelStats()->quiesce();
995504Snate@binkert.org}
1005504Snate@binkert.org
1015504Snate@binkert.orgvoid
1025504Snate@binkert.orgquiesceCycles(ThreadContext *tc, uint64_t cycles)
1035504Snate@binkert.org{
1045529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_quiesce || cycles == 0)
1055504Snate@binkert.org        return;
1065504Snate@binkert.org
1075504Snate@binkert.org    EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
1085504Snate@binkert.org
1095504Snate@binkert.org    Tick resume = curTick + tc->getCpuPtr()->ticks(cycles);
1105504Snate@binkert.org
1115504Snate@binkert.org    quiesceEvent->reschedule(resume, true);
1125504Snate@binkert.org
1135504Snate@binkert.org    DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n",
1145504Snate@binkert.org            tc->getCpuPtr()->name(), cycles, resume);
1155504Snate@binkert.org
1165504Snate@binkert.org    tc->suspend();
1175504Snate@binkert.org    if (tc->getKernelStats())
1185504Snate@binkert.org        tc->getKernelStats()->quiesce();
1195504Snate@binkert.org}
1205504Snate@binkert.org
1215504Snate@binkert.orguint64_t
1225504Snate@binkert.orgquiesceTime(ThreadContext *tc)
1235504Snate@binkert.org{
1245504Snate@binkert.org    return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns;
1255504Snate@binkert.org}
1265504Snate@binkert.org
1275504Snate@binkert.orgvoid
1285504Snate@binkert.orgm5exit(ThreadContext *tc, Tick delay)
1295504Snate@binkert.org{
1305504Snate@binkert.org    Tick when = curTick + delay * Clock::Int::ns;
1315504Snate@binkert.org    schedExitSimLoop("m5_exit instruction encountered", when);
1325504Snate@binkert.org}
1335504Snate@binkert.org
1345504Snate@binkert.orgvoid
1355504Snate@binkert.orgloadsymbol(ThreadContext *tc)
1365504Snate@binkert.org{
1375504Snate@binkert.org    const string &filename = tc->getCpuPtr()->system->params()->symbolfile;
1385504Snate@binkert.org    if (filename.empty()) {
1395504Snate@binkert.org        return;
140711SN/A    }
141711SN/A
1425504Snate@binkert.org    std::string buffer;
1435504Snate@binkert.org    ifstream file(filename.c_str());
144310SN/A
1455504Snate@binkert.org    if (!file)
1465504Snate@binkert.org        fatal("file error: Can't open symbol table file %s\n", filename);
1473373Sstever@eecs.umich.edu
1485504Snate@binkert.org    while (!file.eof()) {
1495504Snate@binkert.org        getline(file, buffer);
1505504Snate@binkert.org
1515504Snate@binkert.org        if (buffer.empty())
1525504Snate@binkert.org            continue;
1535504Snate@binkert.org
1545504Snate@binkert.org        int idx = buffer.find(' ');
1555504Snate@binkert.org        if (idx == string::npos)
1565504Snate@binkert.org            continue;
1575504Snate@binkert.org
1585504Snate@binkert.org        string address = "0x" + buffer.substr(0, idx);
1595504Snate@binkert.org        eat_white(address);
1605504Snate@binkert.org        if (address.empty())
1615504Snate@binkert.org            continue;
1625504Snate@binkert.org
1635504Snate@binkert.org        // Skip over letter and space
1645504Snate@binkert.org        string symbol = buffer.substr(idx + 3);
1655504Snate@binkert.org        eat_white(symbol);
1665504Snate@binkert.org        if (symbol.empty())
1675504Snate@binkert.org            continue;
1685504Snate@binkert.org
1695504Snate@binkert.org        Addr addr;
1705504Snate@binkert.org        if (!to_number(address, addr))
1715504Snate@binkert.org            continue;
1725504Snate@binkert.org
1735504Snate@binkert.org        if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol))
1745504Snate@binkert.org            continue;
1755504Snate@binkert.org
1765504Snate@binkert.org
1775504Snate@binkert.org        DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr);
1785504Snate@binkert.org    }
1795504Snate@binkert.org    file.close();
1805504Snate@binkert.org}
1815504Snate@binkert.org
1825504Snate@binkert.orgvoid
1835504Snate@binkert.orgresetstats(ThreadContext *tc, Tick delay, Tick period)
1845504Snate@binkert.org{
1855529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_statistics_insts)
1865504Snate@binkert.org        return;
1875504Snate@binkert.org
1885504Snate@binkert.org
1895504Snate@binkert.org    Tick when = curTick + delay * Clock::Int::ns;
1905504Snate@binkert.org    Tick repeat = period * Clock::Int::ns;
1915504Snate@binkert.org
1925504Snate@binkert.org    Stats::StatEvent(false, true, when, repeat);
1935504Snate@binkert.org}
1945504Snate@binkert.org
1955504Snate@binkert.orgvoid
1965504Snate@binkert.orgdumpstats(ThreadContext *tc, Tick delay, Tick period)
1975504Snate@binkert.org{
1985529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_statistics_insts)
1995504Snate@binkert.org        return;
2005504Snate@binkert.org
2015504Snate@binkert.org
2025504Snate@binkert.org    Tick when = curTick + delay * Clock::Int::ns;
2035504Snate@binkert.org    Tick repeat = period * Clock::Int::ns;
2045504Snate@binkert.org
2055504Snate@binkert.org    Stats::StatEvent(true, false, when, repeat);
2065504Snate@binkert.org}
2075504Snate@binkert.org
2085504Snate@binkert.orgvoid
2095504Snate@binkert.orgaddsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr)
2105504Snate@binkert.org{
2115504Snate@binkert.org    char symb[100];
2125504Snate@binkert.org    CopyStringOut(tc, symb, symbolAddr, 100);
2135504Snate@binkert.org    std::string symbol(symb);
2145504Snate@binkert.org
2155504Snate@binkert.org    DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr);
2165504Snate@binkert.org
2175504Snate@binkert.org    tc->getSystemPtr()->kernelSymtab->insert(addr,symbol);
2185504Snate@binkert.org}
2195504Snate@binkert.org
2205504Snate@binkert.orgvoid
2215504Snate@binkert.orgdumpresetstats(ThreadContext *tc, Tick delay, Tick period)
2225504Snate@binkert.org{
2235529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_statistics_insts)
2245504Snate@binkert.org        return;
2255504Snate@binkert.org
2265504Snate@binkert.org
2275504Snate@binkert.org    Tick when = curTick + delay * Clock::Int::ns;
2285504Snate@binkert.org    Tick repeat = period * Clock::Int::ns;
2295504Snate@binkert.org
2305504Snate@binkert.org    Stats::StatEvent(true, true, when, repeat);
2315504Snate@binkert.org}
2325504Snate@binkert.org
2335504Snate@binkert.orgvoid
2345504Snate@binkert.orgm5checkpoint(ThreadContext *tc, Tick delay, Tick period)
2355504Snate@binkert.org{
2365529Snate@binkert.org    if (!tc->getCpuPtr()->params()->do_checkpoint_insts)
2375504Snate@binkert.org        return;
2385504Snate@binkert.org
2395504Snate@binkert.org    Tick when = curTick + delay * Clock::Int::ns;
2405504Snate@binkert.org    Tick repeat = period * Clock::Int::ns;
2415504Snate@binkert.org
2425504Snate@binkert.org    schedExitSimLoop("checkpoint", when, repeat);
2435504Snate@binkert.org}
2445504Snate@binkert.org
2455504Snate@binkert.orguint64_t
2465504Snate@binkert.orgreadfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset)
2475504Snate@binkert.org{
2485504Snate@binkert.org    const string &file = tc->getSystemPtr()->params()->readfile;
2495504Snate@binkert.org    if (file.empty()) {
2505504Snate@binkert.org        return ULL(0);
251310SN/A    }
252299SN/A
2535504Snate@binkert.org    uint64_t result = 0;
2542188SN/A
2555504Snate@binkert.org    int fd = ::open(file.c_str(), O_RDONLY, 0);
2565504Snate@binkert.org    if (fd < 0)
2575504Snate@binkert.org        panic("could not open file %s\n", file);
2582235SN/A
2595504Snate@binkert.org    if (::lseek(fd, offset, SEEK_SET) < 0)
2605504Snate@binkert.org        panic("could not seek: %s", strerror(errno));
2613368Sstever@eecs.umich.edu
2625504Snate@binkert.org    char *buf = new char[len];
2635504Snate@binkert.org    char *p = buf;
2645504Snate@binkert.org    while (len > 0) {
2655504Snate@binkert.org        int bytes = ::read(fd, p, len);
2665504Snate@binkert.org        if (bytes <= 0)
2675504Snate@binkert.org            break;
2683368Sstever@eecs.umich.edu
2695504Snate@binkert.org        p += bytes;
2705504Snate@binkert.org        result += bytes;
2715504Snate@binkert.org        len -= bytes;
2722188SN/A    }
2732188SN/A
2745504Snate@binkert.org    close(fd);
2755504Snate@binkert.org    CopyIn(tc, vaddr, buf, result);
2765504Snate@binkert.org    delete [] buf;
2775504Snate@binkert.org    return result;
2785504Snate@binkert.org}
2792188SN/A
2805504Snate@binkert.orgvoid
2815504Snate@binkert.orgdebugbreak(ThreadContext *tc)
2825504Snate@binkert.org{
2835504Snate@binkert.org    debug_break();
2845504Snate@binkert.org}
2852235SN/A
2865504Snate@binkert.orgvoid
2875504Snate@binkert.orgswitchcpu(ThreadContext *tc)
2885504Snate@binkert.org{
2895504Snate@binkert.org    exitSimLoop("switchcpu");
2905504Snate@binkert.org}
2913368Sstever@eecs.umich.edu
2925504Snate@binkert.org/* namespace PseudoInst */ }
293