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@@ -26,6 +26,7 @@ public:
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explicit GlobalScheduler(Core::System& system);
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~GlobalScheduler();
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+
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/// Adds a new thread to the scheduler
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void AddThread(SharedPtr<Thread> thread);
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@@ -37,47 +38,57 @@ public:
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return thread_list;
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}
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- // Add a thread to the suggested queue of a cpu core. Suggested threads may be
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- // picked if no thread is scheduled to run on the core.
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+ /**
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+ * Add a thread to the suggested queue of a cpu core. Suggested threads may be
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+ * picked if no thread is scheduled to run on the core.
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+ */
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void Suggest(u32 priority, u32 core, Thread* thread);
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- // Remove a thread to the suggested queue of a cpu core. Suggested threads may be
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- // picked if no thread is scheduled to run on the core.
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+ /**
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+ * Remove a thread to the suggested queue of a cpu core. Suggested threads may be
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+ * picked if no thread is scheduled to run on the core.
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+ */
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void Unsuggest(u32 priority, u32 core, Thread* thread);
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- // Add a thread to the scheduling queue of a cpu core. The thread is added at the
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- // back the queue in its priority level
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+ /**
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+ * Add a thread to the scheduling queue of a cpu core. The thread is added at the
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+ * back the queue in its priority level.
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+ */
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void Schedule(u32 priority, u32 core, Thread* thread);
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- // Add a thread to the scheduling queue of a cpu core. The thread is added at the
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- // front the queue in its priority level
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+ /**
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+ * Add a thread to the scheduling queue of a cpu core. The thread is added at the
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+ * front the queue in its priority level.
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+ */
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void SchedulePrepend(u32 priority, u32 core, Thread* thread);
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- // Reschedule an already scheduled thread based on a new priority
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+ /// Reschedule an already scheduled thread based on a new priority
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void Reschedule(u32 priority, u32 core, Thread* thread);
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- // Unschedule a thread.
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+ /// Unschedules a thread.
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void Unschedule(u32 priority, u32 core, Thread* thread);
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- // Transfers a thread into an specific core. If the destination_core is -1
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- // it will be unscheduled from its source code and added into its suggested
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- // queue.
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+ /**
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+ * Transfers a thread into an specific core. If the destination_core is -1
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+ * it will be unscheduled from its source code and added into its suggested
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+ * queue.
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+ */
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void TransferToCore(u32 priority, s32 destination_core, Thread* thread);
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- /*
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- * UnloadThread selects a core and forces it to unload its current thread's context
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- */
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+ /// Selects a core and forces it to unload its current thread's context
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void UnloadThread(s32 core);
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- /*
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- * SelectThread takes care of selecting the new scheduled thread.
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- * It does it in 3 steps:
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- * - First a thread is selected from the top of the priority queue. If no thread
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- * is obtained then we move to step two, else we are done.
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- * - Second we try to get a suggested thread that's not assigned to any core or
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- * that is not the top thread in that core.
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- * - Third is no suggested thread is found, we do a second pass and pick a running
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- * thread in another core and swap it with its current thread.
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+ /**
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+ * Takes care of selecting the new scheduled thread in three steps:
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+ *
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+ * 1. First a thread is selected from the top of the priority queue. If no thread
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+ * is obtained then we move to step two, else we are done.
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+ *
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+ * 2. Second we try to get a suggested thread that's not assigned to any core or
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+ * that is not the top thread in that core.
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+ *
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+ * 3. Third is no suggested thread is found, we do a second pass and pick a running
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+ * thread in another core and swap it with its current thread.
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*/
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void SelectThread(u32 core);
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@@ -85,33 +96,37 @@ public:
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return !scheduled_queue[core_id].empty();
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}
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- /*
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- * YieldThread takes a thread and moves it to the back of the it's priority list
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- * This operation can be redundant and no scheduling is changed if marked as so.
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+ /**
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+ * Takes a thread and moves it to the back of the it's priority list.
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+ *
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+ * @note This operation can be redundant and no scheduling is changed if marked as so.
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*/
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bool YieldThread(Thread* thread);
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- /*
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- * YieldThreadAndBalanceLoad takes a thread and moves it to the back of the it's priority list.
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+ /**
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+ * Takes a thread and moves it to the back of the it's priority list.
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* Afterwards, tries to pick a suggested thread from the suggested queue that has worse time or
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* a better priority than the next thread in the core.
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- * This operation can be redundant and no scheduling is changed if marked as so.
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+ *
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+ * @note This operation can be redundant and no scheduling is changed if marked as so.
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*/
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bool YieldThreadAndBalanceLoad(Thread* thread);
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- /*
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- * YieldThreadAndWaitForLoadBalancing takes a thread and moves it out of the scheduling queue
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- * and into the suggested queue. If no thread can be squeduled afterwards in that core,
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+ /**
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+ * Takes a thread and moves it out of the scheduling queue.
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+ * and into the suggested queue. If no thread can be scheduled afterwards in that core,
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* a suggested thread is obtained instead.
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- * This operation can be redundant and no scheduling is changed if marked as so.
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+ *
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+ * @note This operation can be redundant and no scheduling is changed if marked as so.
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*/
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bool YieldThreadAndWaitForLoadBalancing(Thread* thread);
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- /*
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- * PreemptThreads this operation rotates the scheduling queues of threads at
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- * a preemption priority and then does some core rebalancing. Preemption priorities
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- * can be found in the array 'preemption_priorities'. This operation happens
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- * every 10ms.
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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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@@ -137,8 +152,8 @@ private:
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std::array<Common::MultiLevelQueue<Thread*, THREADPRIO_COUNT>, NUM_CPU_CORES> suggested_queue;
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std::atomic<bool> is_reselection_pending;
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- // `preemption_priorities` are the priority levels at which the global scheduler
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- // preempts threads every 10 ms. They are ordered from Core 0 to Core 3
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+ // The priority levels at which the global scheduler preempts threads every 10 ms. They are
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+ // ordered from Core 0 to Core 3.
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std::array<u32, NUM_CPU_CORES> preemption_priorities = {59, 59, 59, 62};
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/// Lists all thread ids that aren't deleted/etc.
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@@ -181,10 +196,8 @@ public:
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private:
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friend class GlobalScheduler;
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- /**
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- * Switches the CPU's active thread context to that of the specified thread
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- * @param new_thread The thread to switch to
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- */
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+
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+ /// Switches the CPU's active thread context to that of the specified thread
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void SwitchContext();
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/**
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