2014-05-09 19:11:18 -07:00
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// Copyright 2014 Citra Emulator Project / PPSSPP Project
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2014-12-16 21:38:14 -08:00
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// Licensed under GPLv2 or any later version
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2014-11-19 00:49:13 -08:00
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// Refer to the license.txt file included.
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2014-05-09 19:11:18 -07:00
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#pragma once
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2018-07-31 05:06:09 -07:00
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#include <functional>
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2014-12-21 22:32:03 -08:00
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#include <string>
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#include <vector>
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2018-07-31 05:06:09 -07:00
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2014-05-09 19:11:18 -07:00
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#include "common/common_types.h"
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#include "core/arm/arm_interface.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/wait_object.h"
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#include "core/hle/result.h"
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2018-09-13 12:57:45 -07:00
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namespace Kernel {
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class KernelCore;
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class Process;
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class Scheduler;
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enum ThreadPriority : u32 {
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THREADPRIO_HIGHEST = 0, ///< Highest thread priority
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THREADPRIO_USERLAND_MAX = 24, ///< Highest thread priority for userland apps
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THREADPRIO_DEFAULT = 44, ///< Default thread priority for userland apps
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THREADPRIO_LOWEST = 63, ///< Lowest thread priority
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THREADPRIO_COUNT = 64, ///< Total number of possible thread priorities.
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};
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enum ThreadProcessorId : s32 {
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/// Indicates that no particular processor core is preferred.
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THREADPROCESSORID_DONT_CARE = -1,
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/// Run thread on the ideal core specified by the process.
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THREADPROCESSORID_IDEAL = -2,
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/// Indicates that the preferred processor ID shouldn't be updated in
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/// a core mask setting operation.
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THREADPROCESSORID_DONT_UPDATE = -3,
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THREADPROCESSORID_0 = 0, ///< Run thread on core 0
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THREADPROCESSORID_1 = 1, ///< Run thread on core 1
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THREADPROCESSORID_2 = 2, ///< Run thread on core 2
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THREADPROCESSORID_3 = 3, ///< Run thread on core 3
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THREADPROCESSORID_MAX = 4, ///< Processor ID must be less than this
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/// Allowed CPU mask
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THREADPROCESSORID_DEFAULT_MASK = (1 << THREADPROCESSORID_0) | (1 << THREADPROCESSORID_1) |
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(1 << THREADPROCESSORID_2) | (1 << THREADPROCESSORID_3)
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};
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enum class ThreadStatus {
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Running, ///< Currently running
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Ready, ///< Ready to run
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Paused, ///< Paused by SetThreadActivity or debug
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WaitHLEEvent, ///< Waiting for hle event to finish
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WaitSleep, ///< Waiting due to a SleepThread SVC
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WaitIPC, ///< Waiting for the reply from an IPC request
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WaitSynch, ///< Waiting due to WaitSynchronization
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WaitMutex, ///< Waiting due to an ArbitrateLock svc
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WaitCondVar, ///< Waiting due to an WaitProcessWideKey svc
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WaitArb, ///< Waiting due to a SignalToAddress/WaitForAddress svc
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Dormant, ///< Created but not yet made ready
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Dead ///< Run to completion, or forcefully terminated
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};
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enum class ThreadWakeupReason {
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Signal, // The thread was woken up by WakeupAllWaitingThreads due to an object signal.
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Timeout // The thread was woken up due to a wait timeout.
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};
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enum class ThreadActivity : u32 {
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Normal = 0,
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Paused = 1,
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};
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class Thread final : public WaitObject {
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public:
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using MutexWaitingThreads = std::vector<SharedPtr<Thread>>;
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using ThreadContext = Core::ARM_Interface::ThreadContext;
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using ThreadWaitObjects = std::vector<SharedPtr<WaitObject>>;
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using WakeupCallback = std::function<bool(ThreadWakeupReason reason, SharedPtr<Thread> thread,
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SharedPtr<WaitObject> object, std::size_t index)>;
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2015-01-25 22:56:17 -08:00
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/**
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* Creates and returns a new thread. The new thread is immediately scheduled
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* @param kernel The kernel instance this thread will be created under.
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* @param name The friendly name desired for the thread
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* @param entry_point The address at which the thread should start execution
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* @param priority The thread's priority
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* @param arg User data to pass to the thread
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* @param processor_id The ID(s) of the processors on which the thread is desired to be run
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* @param stack_top The address of the thread's stack top
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* @param owner_process The parent process for the thread
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* @return A shared pointer to the newly created thread
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*/
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static ResultVal<SharedPtr<Thread>> Create(KernelCore& kernel, std::string name,
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VAddr entry_point, u32 priority, u64 arg,
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s32 processor_id, VAddr stack_top,
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Process& owner_process);
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std::string GetName() const override {
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return name;
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}
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void SetName(std::string new_name) {
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name = std::move(new_name);
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}
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std::string GetTypeName() const override {
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return "Thread";
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}
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2019-04-11 13:30:52 -07:00
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static constexpr HandleType HANDLE_TYPE = HandleType::Thread;
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HandleType GetHandleType() const override {
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return HANDLE_TYPE;
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}
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2019-04-01 15:19:42 -07:00
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bool ShouldWait(const Thread* thread) const override;
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void Acquire(Thread* thread) override;
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/**
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* Gets the thread's current priority
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* @return The current thread's priority
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*/
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u32 GetPriority() const {
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return current_priority;
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}
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2018-10-03 15:47:57 -07:00
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/**
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* Gets the thread's nominal priority.
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* @return The current thread's nominal priority.
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*/
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u32 GetNominalPriority() const {
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return nominal_priority;
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}
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/**
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* Sets the thread's current priority
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* @param priority The new priority
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*/
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void SetPriority(u32 priority);
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2018-04-20 18:15:16 -07:00
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/// Adds a thread to the list of threads that are waiting for a lock held by this thread.
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void AddMutexWaiter(SharedPtr<Thread> thread);
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/// Removes a thread from the list of threads that are waiting for a lock held by this thread.
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void RemoveMutexWaiter(SharedPtr<Thread> thread);
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/// Recalculates the current priority taking into account priority inheritance.
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void UpdatePriority();
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/// Changes the core that the thread is running or scheduled to run on.
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void ChangeCore(u32 core, u64 mask);
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2015-01-25 22:56:17 -08:00
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/**
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* Gets the thread's thread ID
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* @return The thread's ID
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*/
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u64 GetThreadID() const {
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return thread_id;
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}
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2019-04-17 04:08:12 -07:00
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/// Resumes a thread from waiting
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void ResumeFromWait();
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2019-04-17 04:08:12 -07:00
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/// Cancels a waiting operation that this thread may or may not be within.
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///
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/// When the thread is within a waiting state, this will set the thread's
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/// waiting result to signal a canceled wait. The function will then resume
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/// this thread.
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///
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void CancelWait();
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2015-01-30 17:07:54 -08:00
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/**
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* Schedules an event to wake up the specified thread after the specified delay
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* @param nanoseconds The time this thread will be allowed to sleep for
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*/
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2015-01-30 17:07:54 -08:00
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void WakeAfterDelay(s64 nanoseconds);
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2018-01-08 08:35:03 -08:00
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/// Cancel any outstanding wakeup events for this thread
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void CancelWakeupTimer();
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2015-01-16 23:03:44 -08:00
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/**
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* Sets the result after the thread awakens (from svcWaitSynchronization)
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* @param result Value to set to the returned result
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*/
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void SetWaitSynchronizationResult(ResultCode result);
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/**
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* Sets the output parameter value after the thread awakens (from svcWaitSynchronization)
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* @param output Value to set to the output parameter
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*/
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void SetWaitSynchronizationOutput(s32 output);
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2016-12-03 19:38:14 -08:00
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/**
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* Retrieves the index that this particular object occupies in the list of objects
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* that the thread passed to WaitSynchronization, starting the search from the last element.
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*
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* It is used to set the output index of WaitSynchronization when the thread is awakened.
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*
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* When a thread wakes up due to an object signal, the kernel will use the index of the last
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* matching object in the wait objects list in case of having multiple instances of the same
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* object in the list.
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*
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* @param object Object to query the index of.
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*/
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s32 GetWaitObjectIndex(const WaitObject* object) const;
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2015-01-25 22:56:17 -08:00
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/**
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* Stops a thread, invalidating it from further use
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*/
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void Stop();
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2015-05-10 16:35:37 -07:00
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/*
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* Returns the Thread Local Storage address of the current thread
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* @returns VAddr of the thread's TLS
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*/
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2016-09-17 17:38:01 -07:00
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VAddr GetTLSAddress() const {
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return tls_address;
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}
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2015-05-10 16:35:37 -07:00
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2018-07-20 17:57:45 -07:00
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/*
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* Returns the value of the TPIDR_EL0 Read/Write system register for this thread.
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* @returns The value of the TPIDR_EL0 register.
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*/
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u64 GetTPIDR_EL0() const {
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return tpidr_el0;
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}
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2018-10-03 15:47:57 -07:00
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/// Sets the value of the TPIDR_EL0 Read/Write system register for this thread.
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void SetTPIDR_EL0(u64 value) {
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tpidr_el0 = value;
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}
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2017-09-29 12:47:52 -07:00
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/*
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* Returns the address of the current thread's command buffer, located in the TLS.
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* @returns VAddr of the thread's command buffer.
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*/
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VAddr GetCommandBufferAddress() const;
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2019-04-17 04:21:19 -07:00
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/// Returns whether this thread is waiting on objects from a WaitSynchronization call.
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bool IsSleepingOnWait() const {
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return status == ThreadStatus::WaitSynch;
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}
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2018-10-03 15:47:57 -07:00
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ThreadContext& GetContext() {
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return context;
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}
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const ThreadContext& GetContext() const {
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return context;
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}
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ThreadStatus GetStatus() const {
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return status;
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}
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void SetStatus(ThreadStatus new_status);
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u64 GetLastRunningTicks() const {
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return last_running_ticks;
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}
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2018-10-25 15:42:50 -07:00
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u64 GetTotalCPUTimeTicks() const {
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return total_cpu_time_ticks;
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}
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void UpdateCPUTimeTicks(u64 ticks) {
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total_cpu_time_ticks += ticks;
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}
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2018-10-03 15:47:57 -07:00
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s32 GetProcessorID() const {
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return processor_id;
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}
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2018-10-09 21:42:10 -07:00
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Process* GetOwnerProcess() {
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return owner_process;
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}
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2018-10-09 21:42:10 -07:00
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const Process* GetOwnerProcess() const {
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return owner_process;
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}
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const ThreadWaitObjects& GetWaitObjects() const {
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return wait_objects;
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}
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void SetWaitObjects(ThreadWaitObjects objects) {
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wait_objects = std::move(objects);
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}
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void ClearWaitObjects() {
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wait_objects.clear();
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}
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/// Determines whether all the objects this thread is waiting on are ready.
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bool AllWaitObjectsReady() const;
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const MutexWaitingThreads& GetMutexWaitingThreads() const {
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return wait_mutex_threads;
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}
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Thread* GetLockOwner() const {
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return lock_owner.get();
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}
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void SetLockOwner(SharedPtr<Thread> owner) {
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lock_owner = std::move(owner);
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|
}
|
|
|
|
|
|
|
|
VAddr GetCondVarWaitAddress() const {
|
|
|
|
return condvar_wait_address;
|
|
|
|
}
|
|
|
|
|
|
|
|
void SetCondVarWaitAddress(VAddr address) {
|
|
|
|
condvar_wait_address = address;
|
|
|
|
}
|
|
|
|
|
|
|
|
VAddr GetMutexWaitAddress() const {
|
|
|
|
return mutex_wait_address;
|
|
|
|
}
|
2014-12-21 22:32:03 -08:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
void SetMutexWaitAddress(VAddr address) {
|
|
|
|
mutex_wait_address = address;
|
|
|
|
}
|
2014-12-21 22:32:03 -08:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
Handle GetWaitHandle() const {
|
|
|
|
return wait_handle;
|
|
|
|
}
|
2014-12-21 22:32:03 -08:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
void SetWaitHandle(Handle handle) {
|
|
|
|
wait_handle = handle;
|
|
|
|
}
|
2015-03-23 20:55:21 -07:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
VAddr GetArbiterWaitAddress() const {
|
|
|
|
return arb_wait_address;
|
|
|
|
}
|
2014-12-21 22:32:03 -08:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
void SetArbiterWaitAddress(VAddr address) {
|
|
|
|
arb_wait_address = address;
|
|
|
|
}
|
2014-12-21 22:32:03 -08:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
bool HasWakeupCallback() const {
|
|
|
|
return wakeup_callback != nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
void SetWakeupCallback(WakeupCallback callback) {
|
|
|
|
wakeup_callback = std::move(callback);
|
|
|
|
}
|
|
|
|
|
|
|
|
void InvalidateWakeupCallback() {
|
|
|
|
SetWakeupCallback(nullptr);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Invokes the thread's wakeup callback.
|
|
|
|
*
|
|
|
|
* @pre A valid wakeup callback has been set. Violating this precondition
|
|
|
|
* will cause an assertion to trigger.
|
|
|
|
*/
|
|
|
|
bool InvokeWakeupCallback(ThreadWakeupReason reason, SharedPtr<Thread> thread,
|
|
|
|
SharedPtr<WaitObject> object, std::size_t index);
|
|
|
|
|
|
|
|
u32 GetIdealCore() const {
|
|
|
|
return ideal_core;
|
|
|
|
}
|
|
|
|
|
|
|
|
u64 GetAffinityMask() const {
|
|
|
|
return affinity_mask;
|
|
|
|
}
|
|
|
|
|
2018-12-03 09:25:27 -08:00
|
|
|
ThreadActivity GetActivity() const {
|
|
|
|
return activity;
|
|
|
|
}
|
|
|
|
|
|
|
|
void SetActivity(ThreadActivity value);
|
|
|
|
|
2019-03-15 20:28:29 -07:00
|
|
|
/// Sleeps this thread for the given amount of nanoseconds.
|
|
|
|
void Sleep(s64 nanoseconds);
|
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
private:
|
|
|
|
explicit Thread(KernelCore& kernel);
|
|
|
|
~Thread() override;
|
|
|
|
|
2018-11-13 20:58:41 -08:00
|
|
|
void ChangeScheduler();
|
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
Core::ARM_Interface::ThreadContext context{};
|
|
|
|
|
2018-12-18 19:37:01 -08:00
|
|
|
u64 thread_id = 0;
|
2018-10-03 15:47:57 -07:00
|
|
|
|
|
|
|
ThreadStatus status = ThreadStatus::Dormant;
|
|
|
|
|
|
|
|
VAddr entry_point = 0;
|
|
|
|
VAddr stack_top = 0;
|
|
|
|
|
2019-03-14 18:58:23 -07:00
|
|
|
/// Nominal thread priority, as set by the emulated application.
|
|
|
|
/// The nominal priority is the thread priority without priority
|
|
|
|
/// inheritance taken into account.
|
|
|
|
u32 nominal_priority = 0;
|
|
|
|
|
|
|
|
/// Current thread priority. This may change over the course of the
|
|
|
|
/// thread's lifetime in order to facilitate priority inheritance.
|
|
|
|
u32 current_priority = 0;
|
2018-10-03 15:47:57 -07:00
|
|
|
|
2018-10-25 15:42:50 -07:00
|
|
|
u64 total_cpu_time_ticks = 0; ///< Total CPU running ticks.
|
|
|
|
u64 last_running_ticks = 0; ///< CPU tick when thread was last running
|
2018-10-03 15:47:57 -07:00
|
|
|
|
|
|
|
s32 processor_id = 0;
|
|
|
|
|
|
|
|
VAddr tls_address = 0; ///< Virtual address of the Thread Local Storage of the thread
|
|
|
|
u64 tpidr_el0 = 0; ///< TPIDR_EL0 read/write system register.
|
|
|
|
|
|
|
|
/// Process that owns this thread
|
2018-10-09 21:42:10 -07:00
|
|
|
Process* owner_process;
|
2016-12-04 06:58:36 -08:00
|
|
|
|
2017-01-04 07:53:01 -08:00
|
|
|
/// Objects that the thread is waiting on, in the same order as they were
|
2019-04-17 04:21:19 -07:00
|
|
|
/// passed to WaitSynchronization.
|
2018-10-03 15:47:57 -07:00
|
|
|
ThreadWaitObjects wait_objects;
|
2016-12-04 06:58:36 -08:00
|
|
|
|
2018-04-20 18:15:16 -07:00
|
|
|
/// List of threads that are waiting for a mutex that is held by this thread.
|
2018-10-03 15:47:57 -07:00
|
|
|
MutexWaitingThreads wait_mutex_threads;
|
2018-04-20 18:15:16 -07:00
|
|
|
|
|
|
|
/// Thread that owns the lock that this thread is waiting for.
|
|
|
|
SharedPtr<Thread> lock_owner;
|
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
/// If waiting on a ConditionVariable, this is the ConditionVariable address
|
|
|
|
VAddr condvar_wait_address = 0;
|
|
|
|
/// If waiting on a Mutex, this is the mutex address
|
|
|
|
VAddr mutex_wait_address = 0;
|
|
|
|
/// The handle used to wait for the mutex.
|
|
|
|
Handle wait_handle = 0;
|
2018-06-21 03:07:03 -07:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
/// If waiting for an AddressArbiter, this is the address being waited on.
|
2018-06-21 04:13:06 -07:00
|
|
|
VAddr arb_wait_address{0};
|
2016-12-03 19:38:14 -08:00
|
|
|
|
2015-06-07 20:39:37 -07:00
|
|
|
/// Handle used as userdata to reference this object when inserting into the CoreTiming queue.
|
2018-10-03 15:47:57 -07:00
|
|
|
Handle callback_handle = 0;
|
2015-06-07 20:39:37 -07:00
|
|
|
|
2018-10-03 15:47:57 -07:00
|
|
|
/// Callback that will be invoked when the thread is resumed from a waiting state. If the thread
|
2019-04-17 04:21:19 -07:00
|
|
|
/// was waiting via WaitSynchronization then the object will be the last object that became
|
2018-10-03 15:47:57 -07:00
|
|
|
/// available. In case of a timeout, the object will be nullptr.
|
|
|
|
WakeupCallback wakeup_callback;
|
2017-09-28 09:53:32 -07:00
|
|
|
|
2018-10-05 11:51:16 -07:00
|
|
|
Scheduler* scheduler = nullptr;
|
2018-05-02 19:36:51 -07:00
|
|
|
|
2018-05-05 20:03:01 -07:00
|
|
|
u32 ideal_core{0xFFFFFFFF};
|
2018-05-10 16:12:46 -07:00
|
|
|
u64 affinity_mask{0x1};
|
2018-05-05 20:03:01 -07:00
|
|
|
|
2019-06-05 11:32:33 -07:00
|
|
|
ThreadActivity activity = ThreadActivity::Normal;
|
2018-10-03 15:47:57 -07:00
|
|
|
|
|
|
|
std::string name;
|
2014-12-21 22:32:03 -08:00
|
|
|
};
|
|
|
|
|
2015-01-25 22:56:17 -08:00
|
|
|
/**
|
|
|
|
* Gets the current thread
|
|
|
|
*/
|
2014-12-21 22:32:03 -08:00
|
|
|
Thread* GetCurrentThread();
|
|
|
|
|
2017-09-26 15:40:49 -07:00
|
|
|
} // namespace Kernel
|