112837Sgabeblack@google.com/* 212837Sgabeblack@google.com * Copyright 2018 Google, Inc. 312837Sgabeblack@google.com * 412837Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 512837Sgabeblack@google.com * modification, are permitted provided that the following conditions are 612837Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 712837Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 812837Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 912837Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1012837Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1112837Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1212837Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1312837Sgabeblack@google.com * this software without specific prior written permission. 1412837Sgabeblack@google.com * 1512837Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1612837Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1712837Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1812837Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1912837Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2012837Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2112837Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2212837Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2312837Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2412837Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2512837Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2612837Sgabeblack@google.com * 2712837Sgabeblack@google.com * Authors: Gabe Black 2812837Sgabeblack@google.com */ 2912837Sgabeblack@google.com 3012862Sgabeblack@google.com#include "base/types.hh" 3112956Sgabeblack@google.com#include "sim/core.hh" 3212862Sgabeblack@google.com#include "sim/eventq.hh" 3312982Sgabeblack@google.com#include "systemc/core/kernel.hh" 3413403Sgabeblack@google.com#include "systemc/core/sc_main_fiber.hh" 3512956Sgabeblack@google.com#include "systemc/core/scheduler.hh" 3613317Sgabeblack@google.com#include "systemc/ext/core/messages.hh" 3712837Sgabeblack@google.com#include "systemc/ext/core/sc_main.hh" 3812861Sgabeblack@google.com#include "systemc/ext/utils/sc_report_handler.hh" 3912837Sgabeblack@google.com 4012837Sgabeblack@google.comnamespace sc_core 4112837Sgabeblack@google.com{ 4212837Sgabeblack@google.com 4312837Sgabeblack@google.comnamespace 4412837Sgabeblack@google.com{ 4512837Sgabeblack@google.com 4612861Sgabeblack@google.comsc_stop_mode _stop_mode = SC_STOP_FINISH_DELTA; 4712861Sgabeblack@google.com 4812837Sgabeblack@google.com} // anonymous namespace 4912837Sgabeblack@google.com 5012837Sgabeblack@google.comint 5112837Sgabeblack@google.comsc_argc() 5212837Sgabeblack@google.com{ 5313403Sgabeblack@google.com return ::sc_gem5::scMainFiber.argc(); 5412837Sgabeblack@google.com} 5512837Sgabeblack@google.com 5612837Sgabeblack@google.comconst char *const * 5712837Sgabeblack@google.comsc_argv() 5812837Sgabeblack@google.com{ 5913403Sgabeblack@google.com return ::sc_gem5::scMainFiber.argv(); 6012837Sgabeblack@google.com} 6112837Sgabeblack@google.com 6212860Sgabeblack@google.comvoid 6312860Sgabeblack@google.comsc_start() 6412860Sgabeblack@google.com{ 6512962Sgabeblack@google.com Tick now = ::sc_gem5::scheduler.getCurTick(); 6612961Sgabeblack@google.com sc_start(sc_time::from_value(MaxTick - now), SC_EXIT_ON_STARVATION); 6712860Sgabeblack@google.com} 6812860Sgabeblack@google.com 6912860Sgabeblack@google.comvoid 7012860Sgabeblack@google.comsc_pause() 7112860Sgabeblack@google.com{ 7212990Sgabeblack@google.com if (::sc_gem5::Kernel::status() == SC_RUNNING) 7312961Sgabeblack@google.com ::sc_gem5::scheduler.schedulePause(); 7412860Sgabeblack@google.com} 7512860Sgabeblack@google.com 7612860Sgabeblack@google.comvoid 7712860Sgabeblack@google.comsc_start(const sc_time &time, sc_starvation_policy p) 7812860Sgabeblack@google.com{ 7913061Sgabeblack@google.com if (time.value() == 0) { 8013061Sgabeblack@google.com ::sc_gem5::scheduler.oneCycle(); 8113061Sgabeblack@google.com } else { 8213061Sgabeblack@google.com Tick now = ::sc_gem5::scheduler.getCurTick(); 8313317Sgabeblack@google.com if (MaxTick - now < time.value()) 8413317Sgabeblack@google.com SC_REPORT_ERROR(SC_ID_SIMULATION_TIME_OVERFLOW_, ""); 8513061Sgabeblack@google.com ::sc_gem5::scheduler.start(now + time.value(), p == SC_RUN_TO_TIME); 8613061Sgabeblack@google.com } 8712860Sgabeblack@google.com} 8812860Sgabeblack@google.com 8912860Sgabeblack@google.comvoid 9012860Sgabeblack@google.comsc_set_stop_mode(sc_stop_mode mode) 9112860Sgabeblack@google.com{ 9212861Sgabeblack@google.com if (sc_is_running()) { 9313317Sgabeblack@google.com SC_REPORT_ERROR(SC_ID_STOP_MODE_AFTER_START_, ""); 9412861Sgabeblack@google.com return; 9512861Sgabeblack@google.com } 9612861Sgabeblack@google.com _stop_mode = mode; 9712860Sgabeblack@google.com} 9812860Sgabeblack@google.com 9912860Sgabeblack@google.comsc_stop_mode 10012860Sgabeblack@google.comsc_get_stop_mode() 10112860Sgabeblack@google.com{ 10212861Sgabeblack@google.com return _stop_mode; 10312860Sgabeblack@google.com} 10412860Sgabeblack@google.com 10512860Sgabeblack@google.comvoid 10612860Sgabeblack@google.comsc_stop() 10712860Sgabeblack@google.com{ 10813212Sgabeblack@google.com static bool stop_called = false; 10913212Sgabeblack@google.com if (stop_called) { 11013212Sgabeblack@google.com static bool stop_warned = false; 11113212Sgabeblack@google.com if (!stop_warned) 11213317Sgabeblack@google.com SC_REPORT_WARNING(SC_ID_SIMULATION_STOP_CALLED_TWICE_, ""); 11313212Sgabeblack@google.com stop_warned = true; 11413212Sgabeblack@google.com return; 11513212Sgabeblack@google.com } 11613212Sgabeblack@google.com stop_called = true; 11713212Sgabeblack@google.com 11812990Sgabeblack@google.com if (::sc_gem5::Kernel::status() == SC_STOPPED) 11912961Sgabeblack@google.com return; 12012961Sgabeblack@google.com 12113097Sgabeblack@google.com if ((sc_get_status() & SC_RUNNING)) { 12212961Sgabeblack@google.com bool finish_delta = (_stop_mode == SC_STOP_FINISH_DELTA); 12312961Sgabeblack@google.com ::sc_gem5::scheduler.scheduleStop(finish_delta); 12412961Sgabeblack@google.com } else { 12512990Sgabeblack@google.com ::sc_gem5::Kernel::stop(); 12612961Sgabeblack@google.com } 12712860Sgabeblack@google.com} 12812860Sgabeblack@google.com 12912860Sgabeblack@google.comconst sc_time & 13012860Sgabeblack@google.comsc_time_stamp() 13112860Sgabeblack@google.com{ 13213255Sgabeblack@google.com static sc_time tstamp(1.0, SC_SEC); 13313255Sgabeblack@google.com tstamp = sc_time::from_value(::sc_gem5::scheduler.getCurTick()); 13412956Sgabeblack@google.com return tstamp; 13512860Sgabeblack@google.com} 13612860Sgabeblack@google.com 13712860Sgabeblack@google.comsc_dt::uint64 13812860Sgabeblack@google.comsc_delta_count() 13912860Sgabeblack@google.com{ 14012956Sgabeblack@google.com return sc_gem5::scheduler.numCycles(); 14112860Sgabeblack@google.com} 14212860Sgabeblack@google.com 14312860Sgabeblack@google.combool 14412860Sgabeblack@google.comsc_is_running() 14512860Sgabeblack@google.com{ 14612982Sgabeblack@google.com return sc_get_status() & (SC_RUNNING | SC_PAUSED); 14712860Sgabeblack@google.com} 14812860Sgabeblack@google.com 14912860Sgabeblack@google.combool 15012860Sgabeblack@google.comsc_pending_activity_at_current_time() 15112860Sgabeblack@google.com{ 15212962Sgabeblack@google.com return ::sc_gem5::scheduler.pendingCurr(); 15312860Sgabeblack@google.com} 15412860Sgabeblack@google.com 15512860Sgabeblack@google.combool 15612860Sgabeblack@google.comsc_pending_activity_at_future_time() 15712860Sgabeblack@google.com{ 15812962Sgabeblack@google.com return ::sc_gem5::scheduler.pendingFuture(); 15912860Sgabeblack@google.com} 16012860Sgabeblack@google.com 16112860Sgabeblack@google.combool 16212860Sgabeblack@google.comsc_pending_activity() 16312860Sgabeblack@google.com{ 16412861Sgabeblack@google.com return sc_pending_activity_at_current_time() || 16512861Sgabeblack@google.com sc_pending_activity_at_future_time(); 16612860Sgabeblack@google.com} 16712860Sgabeblack@google.com 16812860Sgabeblack@google.comsc_time 16912860Sgabeblack@google.comsc_time_to_pending_activity() 17012860Sgabeblack@google.com{ 17112962Sgabeblack@google.com return sc_time::from_value(::sc_gem5::scheduler.timeToPending()); 17212860Sgabeblack@google.com} 17312860Sgabeblack@google.com 17412860Sgabeblack@google.comsc_status 17512860Sgabeblack@google.comsc_get_status() 17612860Sgabeblack@google.com{ 17712982Sgabeblack@google.com return ::sc_gem5::kernel ? ::sc_gem5::kernel->status() : SC_ELABORATION; 17812860Sgabeblack@google.com} 17912860Sgabeblack@google.com 18013043Sgabeblack@google.comstd::ostream & 18113043Sgabeblack@google.comoperator << (std::ostream &os, sc_status s) 18213043Sgabeblack@google.com{ 18313043Sgabeblack@google.com switch (s) { 18413043Sgabeblack@google.com case SC_ELABORATION: 18513043Sgabeblack@google.com os << "SC_ELABORATION"; 18613043Sgabeblack@google.com break; 18713043Sgabeblack@google.com case SC_BEFORE_END_OF_ELABORATION: 18813043Sgabeblack@google.com os << "SC_BEFORE_END_OF_ELABORATION"; 18913043Sgabeblack@google.com break; 19013043Sgabeblack@google.com case SC_END_OF_ELABORATION: 19113043Sgabeblack@google.com os << "SC_END_OF_ELABORATION"; 19213043Sgabeblack@google.com break; 19313043Sgabeblack@google.com case SC_START_OF_SIMULATION: 19413043Sgabeblack@google.com os << "SC_START_OF_SIMULATION"; 19513043Sgabeblack@google.com break; 19613043Sgabeblack@google.com case SC_RUNNING: 19713043Sgabeblack@google.com os << "SC_RUNNING"; 19813043Sgabeblack@google.com break; 19913043Sgabeblack@google.com case SC_PAUSED: 20013043Sgabeblack@google.com os << "SC_PAUSED"; 20113043Sgabeblack@google.com break; 20213043Sgabeblack@google.com case SC_STOPPED: 20313043Sgabeblack@google.com os << "SC_STOPPED"; 20413043Sgabeblack@google.com break; 20513043Sgabeblack@google.com case SC_END_OF_SIMULATION: 20613043Sgabeblack@google.com os << "SC_END_OF_SIMULATION"; 20713043Sgabeblack@google.com break; 20813043Sgabeblack@google.com 20913043Sgabeblack@google.com // Nonstandard 21013043Sgabeblack@google.com case SC_END_OF_INITIALIZATION: 21113043Sgabeblack@google.com os << "SC_END_OF_INITIALIZATION"; 21213043Sgabeblack@google.com break; 21313043Sgabeblack@google.com case SC_END_OF_UPDATE: 21413043Sgabeblack@google.com os << "SC_END_OF_UPDATE"; 21513043Sgabeblack@google.com break; 21613043Sgabeblack@google.com case SC_BEFORE_TIMESTEP: 21713043Sgabeblack@google.com os << "SC_BEFORE_TIMESTEP"; 21813043Sgabeblack@google.com break; 21913043Sgabeblack@google.com 22013043Sgabeblack@google.com default: 22113043Sgabeblack@google.com if (s & SC_STATUS_ANY) { 22213043Sgabeblack@google.com const char *prefix = "("; 22313043Sgabeblack@google.com for (sc_status m = (sc_status)0x1; 22413043Sgabeblack@google.com m < SC_STATUS_ANY; m = (sc_status)(m << 1)) { 22513043Sgabeblack@google.com if (m & s) { 22613043Sgabeblack@google.com os << prefix; 22713043Sgabeblack@google.com prefix = "|"; 22813043Sgabeblack@google.com os << m; 22913043Sgabeblack@google.com } 23013043Sgabeblack@google.com } 23113043Sgabeblack@google.com os << ")"; 23213043Sgabeblack@google.com } else { 23313043Sgabeblack@google.com ccprintf(os, "%#x", s); 23413043Sgabeblack@google.com } 23513043Sgabeblack@google.com } 23613043Sgabeblack@google.com 23713043Sgabeblack@google.com return os; 23813043Sgabeblack@google.com} 23913043Sgabeblack@google.com 24012837Sgabeblack@google.com} // namespace sc_core 241