99ceb03a1c
This formats all copyright comments according to SPDX formatting guidelines. Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <atomic>
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#include <vector>
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#include "common/common_types.h"
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#include "core/hardware_properties.h"
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#include "core/hle/kernel/k_priority_queue.h"
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#include "core/hle/kernel/k_scheduler_lock.h"
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#include "core/hle/kernel/k_thread.h"
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#include "core/hle/kernel/svc_types.h"
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namespace Kernel {
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class KernelCore;
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class SchedulerLock;
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using KSchedulerPriorityQueue =
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KPriorityQueue<KThread, Core::Hardware::NUM_CPU_CORES, Svc::LowestThreadPriority,
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Svc::HighestThreadPriority>;
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static constexpr s32 HighestCoreMigrationAllowedPriority = 2;
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static_assert(Svc::LowestThreadPriority >= HighestCoreMigrationAllowedPriority);
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static_assert(Svc::HighestThreadPriority <= HighestCoreMigrationAllowedPriority);
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class GlobalSchedulerContext final {
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friend class KScheduler;
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public:
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using LockType = KAbstractSchedulerLock<KScheduler>;
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explicit GlobalSchedulerContext(KernelCore& kernel_);
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~GlobalSchedulerContext();
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/// Adds a new thread to the scheduler
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void AddThread(KThread* thread);
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/// Removes a thread from the scheduler
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void RemoveThread(KThread* thread);
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/// Returns a list of all threads managed by the scheduler
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[[nodiscard]] const std::vector<KThread*>& GetThreadList() const {
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return thread_list;
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}
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/**
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* Rotates the scheduling queues of threads at a preemption priority and then does
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* some core rebalancing. Preemption priorities can be found in the array
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* 'preemption_priorities'.
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*
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* @note This operation happens every 10ms.
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*/
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void PreemptThreads();
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/// Returns true if the global scheduler lock is acquired
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bool IsLocked() const;
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[[nodiscard]] LockType& SchedulerLock() {
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return scheduler_lock;
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}
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[[nodiscard]] const LockType& SchedulerLock() const {
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return scheduler_lock;
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}
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private:
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friend class KScopedSchedulerLock;
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friend class KScopedSchedulerLockAndSleep;
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KernelCore& kernel;
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std::atomic_bool scheduler_update_needed{};
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KSchedulerPriorityQueue priority_queue;
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LockType scheduler_lock;
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/// Lists all thread ids that aren't deleted/etc.
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std::vector<KThread*> thread_list;
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std::mutex global_list_guard;
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};
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} // namespace Kernel
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