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-rw-r--r--src/core/hle/kernel/thread.cpp478
1 files changed, 0 insertions, 478 deletions
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
deleted file mode 100644
index a4f9e0d97..000000000
--- a/src/core/hle/kernel/thread.cpp
+++ /dev/null
@@ -1,478 +0,0 @@
-// Copyright 2014 Citra Emulator Project / PPSSPP Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <cinttypes>
-#include <optional>
-#include <vector>
-
-#include "common/assert.h"
-#include "common/common_types.h"
-#include "common/fiber.h"
-#include "common/logging/log.h"
-#include "common/thread_queue_list.h"
-#include "core/core.h"
-#include "core/cpu_manager.h"
-#include "core/hardware_properties.h"
-#include "core/hle/kernel/errors.h"
-#include "core/hle/kernel/handle_table.h"
-#include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
-#include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/object.h"
-#include "core/hle/kernel/process.h"
-#include "core/hle/kernel/thread.h"
-#include "core/hle/kernel/time_manager.h"
-#include "core/hle/result.h"
-#include "core/memory.h"
-
-#ifdef ARCHITECTURE_x86_64
-#include "core/arm/dynarmic/arm_dynarmic_32.h"
-#include "core/arm/dynarmic/arm_dynarmic_64.h"
-#endif
-
-namespace Kernel {
-
-bool Thread::ShouldWait(const Thread* thread) const {
- return status != ThreadStatus::Dead;
-}
-
-bool Thread::IsSignaled() const {
- return status == ThreadStatus::Dead;
-}
-
-void Thread::Acquire(Thread* thread) {
- ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
-}
-
-Thread::Thread(KernelCore& kernel) : SynchronizationObject{kernel} {}
-Thread::~Thread() = default;
-
-void Thread::Stop() {
- {
- KScopedSchedulerLock lock(kernel);
- SetStatus(ThreadStatus::Dead);
- Signal();
- kernel.GlobalHandleTable().Close(global_handle);
-
- if (owner_process) {
- owner_process->UnregisterThread(this);
-
- // Mark the TLS slot in the thread's page as free.
- owner_process->FreeTLSRegion(tls_address);
- }
- has_exited = true;
- }
- global_handle = 0;
-}
-
-void Thread::ResumeFromWait() {
- KScopedSchedulerLock lock(kernel);
- switch (status) {
- case ThreadStatus::Paused:
- case ThreadStatus::WaitSynch:
- case ThreadStatus::WaitHLEEvent:
- case ThreadStatus::WaitSleep:
- case ThreadStatus::WaitIPC:
- case ThreadStatus::WaitMutex:
- case ThreadStatus::WaitCondVar:
- case ThreadStatus::WaitArb:
- case ThreadStatus::Dormant:
- break;
-
- case ThreadStatus::Ready:
- // The thread's wakeup callback must have already been cleared when the thread was first
- // awoken.
- ASSERT(hle_callback == nullptr);
- // If the thread is waiting on multiple wait objects, it might be awoken more than once
- // before actually resuming. We can ignore subsequent wakeups if the thread status has
- // already been set to ThreadStatus::Ready.
- return;
- case ThreadStatus::Dead:
- // This should never happen, as threads must complete before being stopped.
- DEBUG_ASSERT_MSG(false, "Thread with object id {} cannot be resumed because it's DEAD.",
- GetObjectId());
- return;
- }
-
- SetStatus(ThreadStatus::Ready);
-}
-
-void Thread::OnWakeUp() {
- KScopedSchedulerLock lock(kernel);
- SetStatus(ThreadStatus::Ready);
-}
-
-ResultCode Thread::Start() {
- KScopedSchedulerLock lock(kernel);
- SetStatus(ThreadStatus::Ready);
- return RESULT_SUCCESS;
-}
-
-void Thread::CancelWait() {
- KScopedSchedulerLock lock(kernel);
- if (GetSchedulingStatus() != ThreadSchedStatus::Paused || !is_waiting_on_sync) {
- is_sync_cancelled = true;
- return;
- }
- // TODO(Blinkhawk): Implement cancel of server session
- is_sync_cancelled = false;
- SetSynchronizationResults(nullptr, ERR_SYNCHRONIZATION_CANCELED);
- SetStatus(ThreadStatus::Ready);
-}
-
-static void ResetThreadContext32(Core::ARM_Interface::ThreadContext32& context, u32 stack_top,
- u32 entry_point, u32 arg) {
- context = {};
- context.cpu_registers[0] = arg;
- context.cpu_registers[15] = entry_point;
- context.cpu_registers[13] = stack_top;
-}
-
-static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context, VAddr stack_top,
- VAddr entry_point, u64 arg) {
- context = {};
- context.cpu_registers[0] = arg;
- context.pc = entry_point;
- context.sp = stack_top;
- // TODO(merry): Perform a hardware test to determine the below value.
- context.fpcr = 0;
-}
-
-std::shared_ptr<Common::Fiber>& Thread::GetHostContext() {
- return host_context;
-}
-
-ResultVal<std::shared_ptr<Thread>> Thread::Create(Core::System& system, ThreadType type_flags,
- std::string name, VAddr entry_point, u32 priority,
- u64 arg, s32 processor_id, VAddr stack_top,
- Process* owner_process) {
- std::function<void(void*)> init_func = Core::CpuManager::GetGuestThreadStartFunc();
- void* init_func_parameter = system.GetCpuManager().GetStartFuncParamater();
- return Create(system, type_flags, name, entry_point, priority, arg, processor_id, stack_top,
- owner_process, std::move(init_func), init_func_parameter);
-}
-
-ResultVal<std::shared_ptr<Thread>> Thread::Create(Core::System& system, ThreadType type_flags,
- std::string name, VAddr entry_point, u32 priority,
- u64 arg, s32 processor_id, VAddr stack_top,
- Process* owner_process,
- std::function<void(void*)>&& thread_start_func,
- void* thread_start_parameter) {
- auto& kernel = system.Kernel();
- // Check if priority is in ranged. Lowest priority -> highest priority id.
- if (priority > THREADPRIO_LOWEST && ((type_flags & THREADTYPE_IDLE) == 0)) {
- LOG_ERROR(Kernel_SVC, "Invalid thread priority: {}", priority);
- return ERR_INVALID_THREAD_PRIORITY;
- }
-
- if (processor_id > THREADPROCESSORID_MAX) {
- LOG_ERROR(Kernel_SVC, "Invalid processor id: {}", processor_id);
- return ERR_INVALID_PROCESSOR_ID;
- }
-
- if (owner_process) {
- if (!system.Memory().IsValidVirtualAddress(*owner_process, entry_point)) {
- LOG_ERROR(Kernel_SVC, "(name={}): invalid entry {:016X}", name, entry_point);
- // TODO (bunnei): Find the correct error code to use here
- return RESULT_UNKNOWN;
- }
- }
-
- std::shared_ptr<Thread> thread = std::make_shared<Thread>(kernel);
-
- thread->thread_id = kernel.CreateNewThreadID();
- thread->status = ThreadStatus::Dormant;
- thread->entry_point = entry_point;
- thread->stack_top = stack_top;
- thread->disable_count = 1;
- thread->tpidr_el0 = 0;
- thread->nominal_priority = thread->current_priority = priority;
- thread->schedule_count = -1;
- thread->last_scheduled_tick = 0;
- thread->processor_id = processor_id;
- thread->ideal_core = processor_id;
- thread->affinity_mask.SetAffinity(processor_id, true);
- thread->wait_objects = nullptr;
- thread->mutex_wait_address = 0;
- thread->condvar_wait_address = 0;
- thread->wait_handle = 0;
- thread->name = std::move(name);
- thread->global_handle = kernel.GlobalHandleTable().Create(thread).Unwrap();
- thread->owner_process = owner_process;
- thread->type = type_flags;
- if ((type_flags & THREADTYPE_IDLE) == 0) {
- auto& scheduler = kernel.GlobalSchedulerContext();
- scheduler.AddThread(thread);
- }
- if (owner_process) {
- thread->tls_address = thread->owner_process->CreateTLSRegion();
- thread->owner_process->RegisterThread(thread.get());
- } else {
- thread->tls_address = 0;
- }
-
- // TODO(peachum): move to ScheduleThread() when scheduler is added so selected core is used
- // to initialize the context
- if ((type_flags & THREADTYPE_HLE) == 0) {
- ResetThreadContext32(thread->context_32, static_cast<u32>(stack_top),
- static_cast<u32>(entry_point), static_cast<u32>(arg));
- ResetThreadContext64(thread->context_64, stack_top, entry_point, arg);
- }
- thread->host_context =
- std::make_shared<Common::Fiber>(std::move(thread_start_func), thread_start_parameter);
-
- return MakeResult<std::shared_ptr<Thread>>(std::move(thread));
-}
-
-void Thread::SetPriority(u32 priority) {
- KScopedSchedulerLock lock(kernel);
- ASSERT_MSG(priority <= THREADPRIO_LOWEST && priority >= THREADPRIO_HIGHEST,
- "Invalid priority value.");
- nominal_priority = priority;
- UpdatePriority();
-}
-
-void Thread::SetSynchronizationResults(SynchronizationObject* object, ResultCode result) {
- signaling_object = object;
- signaling_result = result;
-}
-
-s32 Thread::GetSynchronizationObjectIndex(std::shared_ptr<SynchronizationObject> object) const {
- ASSERT_MSG(!wait_objects->empty(), "Thread is not waiting for anything");
- const auto match = std::find(wait_objects->rbegin(), wait_objects->rend(), object);
- return static_cast<s32>(std::distance(match, wait_objects->rend()) - 1);
-}
-
-VAddr Thread::GetCommandBufferAddress() const {
- // Offset from the start of TLS at which the IPC command buffer begins.
- constexpr u64 command_header_offset = 0x80;
- return GetTLSAddress() + command_header_offset;
-}
-
-void Thread::SetStatus(ThreadStatus new_status) {
- if (new_status == status) {
- return;
- }
-
- switch (new_status) {
- case ThreadStatus::Ready:
- SetSchedulingStatus(ThreadSchedStatus::Runnable);
- break;
- case ThreadStatus::Dormant:
- SetSchedulingStatus(ThreadSchedStatus::None);
- break;
- case ThreadStatus::Dead:
- SetSchedulingStatus(ThreadSchedStatus::Exited);
- break;
- default:
- SetSchedulingStatus(ThreadSchedStatus::Paused);
- break;
- }
-
- status = new_status;
-}
-
-void Thread::AddMutexWaiter(std::shared_ptr<Thread> thread) {
- if (thread->lock_owner.get() == this) {
- // If the thread is already waiting for this thread to release the mutex, ensure that the
- // waiters list is consistent and return without doing anything.
- const auto iter = std::find(wait_mutex_threads.begin(), wait_mutex_threads.end(), thread);
- ASSERT(iter != wait_mutex_threads.end());
- return;
- }
-
- // A thread can't wait on two different mutexes at the same time.
- ASSERT(thread->lock_owner == nullptr);
-
- // Ensure that the thread is not already in the list of mutex waiters
- const auto iter = std::find(wait_mutex_threads.begin(), wait_mutex_threads.end(), thread);
- ASSERT(iter == wait_mutex_threads.end());
-
- // Keep the list in an ordered fashion
- const auto insertion_point = std::find_if(
- wait_mutex_threads.begin(), wait_mutex_threads.end(),
- [&thread](const auto& entry) { return entry->GetPriority() > thread->GetPriority(); });
- wait_mutex_threads.insert(insertion_point, thread);
- thread->lock_owner = SharedFrom(this);
-
- UpdatePriority();
-}
-
-void Thread::RemoveMutexWaiter(std::shared_ptr<Thread> thread) {
- ASSERT(thread->lock_owner.get() == this);
-
- // Ensure that the thread is in the list of mutex waiters
- const auto iter = std::find(wait_mutex_threads.begin(), wait_mutex_threads.end(), thread);
- ASSERT(iter != wait_mutex_threads.end());
-
- wait_mutex_threads.erase(iter);
-
- thread->lock_owner = nullptr;
- UpdatePriority();
-}
-
-void Thread::UpdatePriority() {
- // If any of the threads waiting on the mutex have a higher priority
- // (taking into account priority inheritance), then this thread inherits
- // that thread's priority.
- u32 new_priority = nominal_priority;
- if (!wait_mutex_threads.empty()) {
- if (wait_mutex_threads.front()->current_priority < new_priority) {
- new_priority = wait_mutex_threads.front()->current_priority;
- }
- }
-
- if (new_priority == current_priority) {
- return;
- }
-
- if (GetStatus() == ThreadStatus::WaitCondVar) {
- owner_process->RemoveConditionVariableThread(SharedFrom(this));
- }
-
- SetCurrentPriority(new_priority);
-
- if (GetStatus() == ThreadStatus::WaitCondVar) {
- owner_process->InsertConditionVariableThread(SharedFrom(this));
- }
-
- if (!lock_owner) {
- return;
- }
-
- // Ensure that the thread is within the correct location in the waiting list.
- auto old_owner = lock_owner;
- lock_owner->RemoveMutexWaiter(SharedFrom(this));
- old_owner->AddMutexWaiter(SharedFrom(this));
-
- // Recursively update the priority of the thread that depends on the priority of this one.
- lock_owner->UpdatePriority();
-}
-
-bool Thread::AllSynchronizationObjectsReady() const {
- return std::none_of(wait_objects->begin(), wait_objects->end(),
- [this](const std::shared_ptr<SynchronizationObject>& object) {
- return object->ShouldWait(this);
- });
-}
-
-bool Thread::InvokeHLECallback(std::shared_ptr<Thread> thread) {
- ASSERT(hle_callback);
- return hle_callback(std::move(thread));
-}
-
-ResultCode Thread::SetActivity(ThreadActivity value) {
- KScopedSchedulerLock lock(kernel);
-
- auto sched_status = GetSchedulingStatus();
-
- if (sched_status != ThreadSchedStatus::Runnable && sched_status != ThreadSchedStatus::Paused) {
- return ERR_INVALID_STATE;
- }
-
- if (IsPendingTermination()) {
- return RESULT_SUCCESS;
- }
-
- if (value == ThreadActivity::Paused) {
- if ((pausing_state & static_cast<u32>(ThreadSchedFlags::ThreadPauseFlag)) != 0) {
- return ERR_INVALID_STATE;
- }
- AddSchedulingFlag(ThreadSchedFlags::ThreadPauseFlag);
- } else {
- if ((pausing_state & static_cast<u32>(ThreadSchedFlags::ThreadPauseFlag)) == 0) {
- return ERR_INVALID_STATE;
- }
- RemoveSchedulingFlag(ThreadSchedFlags::ThreadPauseFlag);
- }
- return RESULT_SUCCESS;
-}
-
-ResultCode Thread::Sleep(s64 nanoseconds) {
- Handle event_handle{};
- {
- KScopedSchedulerLockAndSleep lock(kernel, event_handle, this, nanoseconds);
- SetStatus(ThreadStatus::WaitSleep);
- }
-
- if (event_handle != InvalidHandle) {
- auto& time_manager = kernel.TimeManager();
- time_manager.UnscheduleTimeEvent(event_handle);
- }
- return RESULT_SUCCESS;
-}
-
-void Thread::AddSchedulingFlag(ThreadSchedFlags flag) {
- const u32 old_state = scheduling_state;
- pausing_state |= static_cast<u32>(flag);
- const u32 base_scheduling = static_cast<u32>(GetSchedulingStatus());
- scheduling_state = base_scheduling | pausing_state;
- KScheduler::OnThreadStateChanged(kernel, this, old_state);
-}
-
-void Thread::RemoveSchedulingFlag(ThreadSchedFlags flag) {
- const u32 old_state = scheduling_state;
- pausing_state &= ~static_cast<u32>(flag);
- const u32 base_scheduling = static_cast<u32>(GetSchedulingStatus());
- scheduling_state = base_scheduling | pausing_state;
- KScheduler::OnThreadStateChanged(kernel, this, old_state);
-}
-
-void Thread::SetSchedulingStatus(ThreadSchedStatus new_status) {
- const u32 old_state = scheduling_state;
- scheduling_state = (scheduling_state & static_cast<u32>(ThreadSchedMasks::HighMask)) |
- static_cast<u32>(new_status);
- KScheduler::OnThreadStateChanged(kernel, this, old_state);
-}
-
-void Thread::SetCurrentPriority(u32 new_priority) {
- const u32 old_priority = std::exchange(current_priority, new_priority);
- KScheduler::OnThreadPriorityChanged(kernel, this, kernel.CurrentScheduler()->GetCurrentThread(),
- old_priority);
-}
-
-ResultCode Thread::SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask) {
- KScopedSchedulerLock lock(kernel);
- const auto HighestSetCore = [](u64 mask, u32 max_cores) {
- for (s32 core = static_cast<s32>(max_cores - 1); core >= 0; core--) {
- if (((mask >> core) & 1) != 0) {
- return core;
- }
- }
- return -1;
- };
-
- const bool use_override = affinity_override_count != 0;
- if (new_core == THREADPROCESSORID_DONT_UPDATE) {
- new_core = use_override ? ideal_core_override : ideal_core;
- if ((new_affinity_mask & (1ULL << new_core)) == 0) {
- LOG_ERROR(Kernel, "New affinity mask is incorrect! new_core={}, new_affinity_mask={}",
- new_core, new_affinity_mask);
- return ERR_INVALID_COMBINATION;
- }
- }
- if (use_override) {
- ideal_core_override = new_core;
- } else {
- const auto old_affinity_mask = affinity_mask;
- affinity_mask.SetAffinityMask(new_affinity_mask);
- ideal_core = new_core;
- if (old_affinity_mask.GetAffinityMask() != new_affinity_mask) {
- const s32 old_core = processor_id;
- if (processor_id >= 0 && !affinity_mask.GetAffinity(processor_id)) {
- if (static_cast<s32>(ideal_core) < 0) {
- processor_id = HighestSetCore(affinity_mask.GetAffinityMask(),
- Core::Hardware::NUM_CPU_CORES);
- } else {
- processor_id = ideal_core;
- }
- }
- KScheduler::OnThreadAffinityMaskChanged(kernel, this, old_affinity_mask, old_core);
- }
- }
- return RESULT_SUCCESS;
-}
-
-} // namespace Kernel
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