Eyck Jentzsch
3082b3c98b
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112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
#ifndef _TOP_MODULE_H_
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#define _TOP_MODULE_H_
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#include "scc/mt19937_rng.h"
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#include <atomic>
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#include <chrono>
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#include <scc/async_queue.h>
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#include <scc/async_thread.h>
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#include <scc/report.h>
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#include <scc/router.h>
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#include <sysc/kernel/sc_initializer_function.h>
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#include <sysc/kernel/sc_module.h>
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#include <sysc/kernel/sc_simcontext.h>
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#include <sysc/kernel/sc_time.h>
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#include <thread>
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#include <tlm/scc/quantum_keeper.h>
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#include <tlm>
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#include <tlm_core/tlm_2/tlm_generic_payload/tlm_gp.h>
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#include <tlm_utils/simple_initiator_socket.h>
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#include <tlm_utils/simple_target_socket.h>
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#include <util/logging.h>
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enum { CLIENT_DELAY = 100, SC_DELAY = 10 };
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struct initiator : ::sc_core ::sc_module {
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tlm_utils::simple_initiator_socket<initiator, scc::LT> isckt{"isckt"};
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initiator(sc_core::sc_module_name nm, sc_core::sc_time period = 1_us)
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: sc_core::sc_module(nm)
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, period(period) {
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SC_THREAD(run);
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}
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~initiator() = default;
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private:
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void run() {
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wait(sc_core::SC_ZERO_TIME); // guard elaboration phase
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quantum_keeper.reset();
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core_executor.start([this]() { return thread_exec(); });
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wait(core_executor.thread_finish_event());
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sc_core::sc_stop();
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}
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sc_core::sc_time thread_exec() {
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SCCDEBUG(SCMOD) << "starting thread_exec";
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for(auto i = 0u; i < 16; ++i) {
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std::this_thread::sleep_for(std::chrono::milliseconds(CLIENT_DELAY));
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if(i && (i % 3) == 0) {
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tlm::tlm_generic_payload gp;
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sc_core::sc_time t;
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SCCDEBUG(SCMOD) << "initiating b_transport at local time " << quantum_keeper.get_local_absolute_time();
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quantum_keeper.execute_on_sysc([this, &gp, &t]() {
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SCCDEBUG(SCMOD) << "executing b_transport";
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this->isckt->b_transport(gp, t);
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});
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if(t.value()) {
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SCCDEBUG(SCMOD) << "incrementing local time by b_transport delay of " << t;
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quantum_keeper.inc(t);
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}
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} else {
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quantum_keeper.check_and_sync(period);
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}
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SCCDEBUG(SCMOD) << "local time now " << quantum_keeper.get_local_absolute_time();
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}
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SCCDEBUG(SCMOD) << "finished thread_exec at local time " << quantum_keeper.get_local_absolute_time();
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return quantum_keeper.get_local_absolute_time();
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}
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tlm::scc::quantumkeeper_mt quantum_keeper;
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scc::async_thread core_executor;
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const sc_core::sc_time period{1_us};
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};
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// top_module
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struct top_module : ::sc_core ::sc_module {
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initiator core0{"core0"};
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initiator core1{"core1", 1500_ns};
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scc::router<scc::LT> router{"router", 1, 2};
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tlm_utils::simple_target_socket<top_module, scc::LT> tsckt{"tsckt"};
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top_module(sc_core::sc_module_name nm)
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: sc_core::sc_module(nm) {
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core0.isckt(router.target[0]);
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core1.isckt(router.target[1]);
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router.initiator[0](tsckt);
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router.set_default_target(0);
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tsckt.register_b_transport(this, &top_module::b_transport);
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SC_THREAD(run);
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}
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~top_module() = default;
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void b_transport(tlm::tlm_generic_payload& gp, sc_core::sc_time& t) {
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SCCDEBUG(SCMOD) << "Received b_transport call at local time " << t;
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auto cycles = rng.uniform(0, 5);
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t += sc_core::sc_time(cycles, sc_core::SC_US);
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gp.set_response_status(tlm::TLM_OK_RESPONSE);
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}
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void run() {
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wait(sc_core::SC_ZERO_TIME);
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while(true) {
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std::this_thread::sleep_for(std::chrono::milliseconds(SC_DELAY));
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wait(500_ns);
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}
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}
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scc::MT19937 rng;
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};
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#endif // _TOP_MODULE_H_
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