mirror of
https://github.com/yuzu-mirror/yuzu.git
synced 2024-11-19 07:37:33 +01:00
bd983414f6
Gets rid of the largest set of mutable global state within the core. This also paves a way for eliminating usages of GetInstance() on the System class as a follow-up. Note that no behavioral changes have been made, and this simply extracts the functionality into a class. This also has the benefit of making dependencies on the core timing functionality explicit within the relevant interfaces.
97 lines
1.8 KiB
C++
97 lines
1.8 KiB
C++
// Copyright 2018 yuzu emulator team
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <atomic>
|
|
#include <condition_variable>
|
|
#include <cstddef>
|
|
#include <memory>
|
|
#include <mutex>
|
|
#include "common/common_types.h"
|
|
|
|
namespace Kernel {
|
|
class Scheduler;
|
|
}
|
|
|
|
namespace Core::Timing {
|
|
class CoreTiming;
|
|
}
|
|
|
|
namespace Core {
|
|
|
|
class ARM_Interface;
|
|
class ExclusiveMonitor;
|
|
|
|
constexpr unsigned NUM_CPU_CORES{4};
|
|
|
|
class CpuBarrier {
|
|
public:
|
|
bool IsAlive() const {
|
|
return !end;
|
|
}
|
|
|
|
void NotifyEnd();
|
|
|
|
bool Rendezvous();
|
|
|
|
private:
|
|
unsigned cores_waiting{NUM_CPU_CORES};
|
|
std::mutex mutex;
|
|
std::condition_variable condition;
|
|
std::atomic<bool> end{};
|
|
};
|
|
|
|
class Cpu {
|
|
public:
|
|
Cpu(Timing::CoreTiming& core_timing, ExclusiveMonitor& exclusive_monitor,
|
|
CpuBarrier& cpu_barrier, std::size_t core_index);
|
|
~Cpu();
|
|
|
|
void RunLoop(bool tight_loop = true);
|
|
|
|
void SingleStep();
|
|
|
|
void PrepareReschedule();
|
|
|
|
ARM_Interface& ArmInterface() {
|
|
return *arm_interface;
|
|
}
|
|
|
|
const ARM_Interface& ArmInterface() const {
|
|
return *arm_interface;
|
|
}
|
|
|
|
Kernel::Scheduler& Scheduler() {
|
|
return *scheduler;
|
|
}
|
|
|
|
const Kernel::Scheduler& Scheduler() const {
|
|
return *scheduler;
|
|
}
|
|
|
|
bool IsMainCore() const {
|
|
return core_index == 0;
|
|
}
|
|
|
|
std::size_t CoreIndex() const {
|
|
return core_index;
|
|
}
|
|
|
|
static std::unique_ptr<ExclusiveMonitor> MakeExclusiveMonitor(std::size_t num_cores);
|
|
|
|
private:
|
|
void Reschedule();
|
|
|
|
std::unique_ptr<ARM_Interface> arm_interface;
|
|
CpuBarrier& cpu_barrier;
|
|
std::unique_ptr<Kernel::Scheduler> scheduler;
|
|
Timing::CoreTiming& core_timing;
|
|
|
|
std::atomic<bool> reschedule_pending = false;
|
|
std::size_t core_index;
|
|
};
|
|
|
|
} // namespace Core
|