82 lines
1.5 KiB
C++
82 lines
1.5 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <condition_variable>
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#include <memory>
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#include <mutex>
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#include <string>
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#include "common/common_types.h"
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class ARM_Interface;
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namespace Kernel {
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class Scheduler;
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}
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namespace Core {
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constexpr unsigned NUM_CPU_CORES{4};
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class CpuBarrier {
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public:
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void Rendezvous() {
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std::unique_lock<std::mutex> lock(mutex);
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--cores_waiting;
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if (!cores_waiting) {
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cores_waiting = NUM_CPU_CORES;
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condition.notify_all();
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return;
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}
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condition.wait(lock);
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}
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private:
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unsigned cores_waiting{NUM_CPU_CORES};
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std::mutex mutex;
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std::condition_variable condition;
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};
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class Cpu {
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public:
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Cpu(std::shared_ptr<CpuBarrier> cpu_barrier, size_t core_index);
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void RunLoop(bool tight_loop = true);
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void SingleStep();
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void PrepareReschedule();
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ARM_Interface& ArmInterface() {
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return *arm_interface;
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}
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const ARM_Interface& ArmInterface() const {
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return *arm_interface;
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}
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const std::shared_ptr<Kernel::Scheduler>& Scheduler() const {
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return scheduler;
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}
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bool IsMainCore() const {
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return core_index == 0;
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}
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private:
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void Reschedule();
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std::shared_ptr<ARM_Interface> arm_interface;
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std::shared_ptr<CpuBarrier> cpu_barrier;
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std::shared_ptr<Kernel::Scheduler> scheduler;
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bool reschedule_pending{};
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size_t core_index;
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};
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} // namespace Core
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