diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/CMakeLists.txt | 4 | ||||
| -rw-r--r-- | src/core/hle/kernel/address_arbiter.cpp | 317 | ||||
| -rw-r--r-- | src/core/hle/kernel/address_arbiter.h | 91 | ||||
| -rw-r--r-- | src/core/hle/kernel/k_synchronization_object.cpp | 4 | ||||
| -rw-r--r-- | src/core/hle/kernel/mutex.cpp | 170 | ||||
| -rw-r--r-- | src/core/hle/kernel/mutex.h | 42 | ||||
| -rw-r--r-- | src/core/hle/kernel/process.cpp | 48 | ||||
| -rw-r--r-- | src/core/hle/kernel/process.h | 50 | ||||
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 364 | ||||
| -rw-r--r-- | src/core/hle/kernel/svc_common.h | 1 | ||||
| -rw-r--r-- | src/core/hle/kernel/svc_wrap.h | 38 | ||||
| -rw-r--r-- | src/core/hle/kernel/thread.cpp | 227 | ||||
| -rw-r--r-- | src/core/hle/kernel/thread.h | 318 | ||||
| -rw-r--r-- | src/core/hle/kernel/time_manager.cpp | 6 |
14 files changed, 503 insertions, 1177 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index d29d4573e..1b8ad476e 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -142,8 +142,6 @@ add_library(core STATIC hardware_interrupt_manager.h hle/ipc.h hle/ipc_helpers.h - hle/kernel/address_arbiter.cpp - hle/kernel/address_arbiter.h hle/kernel/client_port.cpp hle/kernel/client_port.h hle/kernel/client_session.cpp @@ -189,8 +187,6 @@ add_library(core STATIC hle/kernel/memory/slab_heap.h hle/kernel/memory/system_control.cpp hle/kernel/memory/system_control.h - hle/kernel/mutex.cpp - hle/kernel/mutex.h hle/kernel/object.cpp hle/kernel/object.h hle/kernel/physical_core.cpp diff --git a/src/core/hle/kernel/address_arbiter.cpp b/src/core/hle/kernel/address_arbiter.cpp deleted file mode 100644 index fe8675186..000000000 --- a/src/core/hle/kernel/address_arbiter.cpp +++ /dev/null @@ -1,317 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <algorithm> -#include <vector> - -#include "common/assert.h" -#include "common/common_types.h" -#include "core/arm/exclusive_monitor.h" -#include "core/core.h" -#include "core/hle/kernel/address_arbiter.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/thread.h" -#include "core/hle/kernel/time_manager.h" -#include "core/hle/result.h" -#include "core/memory.h" - -namespace Kernel { - -// Wake up num_to_wake (or all) threads in a vector. -void AddressArbiter::WakeThreads(const std::vector<std::shared_ptr<Thread>>& waiting_threads, - s32 num_to_wake) { - // Only process up to 'target' threads, unless 'target' is <= 0, in which case process - // them all. - std::size_t last = waiting_threads.size(); - if (num_to_wake > 0) { - last = std::min(last, static_cast<std::size_t>(num_to_wake)); - } - - // Signal the waiting threads. - for (std::size_t i = 0; i < last; i++) { - waiting_threads[i]->SetSynchronizationResults(nullptr, RESULT_SUCCESS); - RemoveThread(waiting_threads[i]); - waiting_threads[i]->WaitForArbitration(false); - waiting_threads[i]->Wakeup(); - } -} - -AddressArbiter::AddressArbiter(Core::System& system) : system{system} {} -AddressArbiter::~AddressArbiter() = default; - -ResultCode AddressArbiter::SignalToAddress(VAddr address, SignalType type, s32 value, - s32 num_to_wake) { - switch (type) { - case SignalType::Signal: - return SignalToAddressOnly(address, num_to_wake); - case SignalType::IncrementAndSignalIfEqual: - return IncrementAndSignalToAddressIfEqual(address, value, num_to_wake); - case SignalType::ModifyByWaitingCountAndSignalIfEqual: - return ModifyByWaitingCountAndSignalToAddressIfEqual(address, value, num_to_wake); - default: - return ERR_INVALID_ENUM_VALUE; - } -} - -ResultCode AddressArbiter::SignalToAddressOnly(VAddr address, s32 num_to_wake) { - KScopedSchedulerLock lock(system.Kernel()); - const std::vector<std::shared_ptr<Thread>> waiting_threads = - GetThreadsWaitingOnAddress(address); - WakeThreads(waiting_threads, num_to_wake); - return RESULT_SUCCESS; -} - -ResultCode AddressArbiter::IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, - s32 num_to_wake) { - KScopedSchedulerLock lock(system.Kernel()); - auto& memory = system.Memory(); - - // Ensure that we can write to the address. - if (!memory.IsValidVirtualAddress(address)) { - return ERR_INVALID_ADDRESS_STATE; - } - - const std::size_t current_core = system.CurrentCoreIndex(); - auto& monitor = system.Monitor(); - u32 current_value; - do { - current_value = monitor.ExclusiveRead32(current_core, address); - - if (current_value != static_cast<u32>(value)) { - return ERR_INVALID_STATE; - } - current_value++; - } while (!monitor.ExclusiveWrite32(current_core, address, current_value)); - - return SignalToAddressOnly(address, num_to_wake); -} - -ResultCode AddressArbiter::ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, - s32 num_to_wake) { - KScopedSchedulerLock lock(system.Kernel()); - auto& memory = system.Memory(); - - // Ensure that we can write to the address. - if (!memory.IsValidVirtualAddress(address)) { - return ERR_INVALID_ADDRESS_STATE; - } - - // Get threads waiting on the address. - const std::vector<std::shared_ptr<Thread>> waiting_threads = - GetThreadsWaitingOnAddress(address); - - const std::size_t current_core = system.CurrentCoreIndex(); - auto& monitor = system.Monitor(); - s32 updated_value; - do { - updated_value = monitor.ExclusiveRead32(current_core, address); - - if (updated_value != value) { - return ERR_INVALID_STATE; - } - // Determine the modified value depending on the waiting count. - if (num_to_wake <= 0) { - if (waiting_threads.empty()) { - updated_value = value + 1; - } else { - updated_value = value - 1; - } - } else { - if (waiting_threads.empty()) { - updated_value = value + 1; - } else if (waiting_threads.size() <= static_cast<u32>(num_to_wake)) { - updated_value = value - 1; - } else { - updated_value = value; - } - } - } while (!monitor.ExclusiveWrite32(current_core, address, updated_value)); - - WakeThreads(waiting_threads, num_to_wake); - return RESULT_SUCCESS; -} - -ResultCode AddressArbiter::WaitForAddress(VAddr address, ArbitrationType type, s32 value, - s64 timeout_ns) { - switch (type) { - case ArbitrationType::WaitIfLessThan: - return WaitForAddressIfLessThan(address, value, timeout_ns, false); - case ArbitrationType::DecrementAndWaitIfLessThan: - return WaitForAddressIfLessThan(address, value, timeout_ns, true); - case ArbitrationType::WaitIfEqual: - return WaitForAddressIfEqual(address, value, timeout_ns); - default: - return ERR_INVALID_ENUM_VALUE; - } -} - -ResultCode AddressArbiter::WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, - bool should_decrement) { - auto& memory = system.Memory(); - auto& kernel = system.Kernel(); - Thread* current_thread = kernel.CurrentScheduler()->GetCurrentThread(); - - Handle event_handle = InvalidHandle; - { - KScopedSchedulerLockAndSleep lock(kernel, event_handle, current_thread, timeout); - - if (current_thread->IsTerminationRequested()) { - lock.CancelSleep(); - return ERR_THREAD_TERMINATING; - } - - // Ensure that we can read the address. - if (!memory.IsValidVirtualAddress(address)) { - lock.CancelSleep(); - return ERR_INVALID_ADDRESS_STATE; - } - - s32 current_value = static_cast<s32>(memory.Read32(address)); - if (current_value >= value) { - lock.CancelSleep(); - return ERR_INVALID_STATE; - } - - current_thread->SetSynchronizationResults(nullptr, RESULT_TIMEOUT); - - s32 decrement_value; - - const std::size_t current_core = system.CurrentCoreIndex(); - auto& monitor = system.Monitor(); - do { - current_value = static_cast<s32>(monitor.ExclusiveRead32(current_core, address)); - if (should_decrement) { - decrement_value = current_value - 1; - } else { - decrement_value = current_value; - } - } while ( - !monitor.ExclusiveWrite32(current_core, address, static_cast<u32>(decrement_value))); - - // Short-circuit without rescheduling, if timeout is zero. - if (timeout == 0) { - lock.CancelSleep(); - return RESULT_TIMEOUT; - } - - current_thread->SetArbiterWaitAddress(address); - InsertThread(SharedFrom(current_thread)); - current_thread->SetState(ThreadState::Waiting); - current_thread->WaitForArbitration(true); - } - - if (event_handle != InvalidHandle) { - auto& time_manager = kernel.TimeManager(); - time_manager.UnscheduleTimeEvent(event_handle); - } - - { - KScopedSchedulerLock lock(kernel); - if (current_thread->IsWaitingForArbitration()) { - RemoveThread(SharedFrom(current_thread)); - current_thread->WaitForArbitration(false); - } - } - - return current_thread->GetSignalingResult(); -} - -ResultCode AddressArbiter::WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout) { - auto& memory = system.Memory(); - auto& kernel = system.Kernel(); - Thread* current_thread = kernel.CurrentScheduler()->GetCurrentThread(); - - Handle event_handle = InvalidHandle; - { - KScopedSchedulerLockAndSleep lock(kernel, event_handle, current_thread, timeout); - - if (current_thread->IsTerminationRequested()) { - lock.CancelSleep(); - return ERR_THREAD_TERMINATING; - } - - // Ensure that we can read the address. - if (!memory.IsValidVirtualAddress(address)) { - lock.CancelSleep(); - return ERR_INVALID_ADDRESS_STATE; - } - - s32 current_value = static_cast<s32>(memory.Read32(address)); - if (current_value != value) { - lock.CancelSleep(); - return ERR_INVALID_STATE; - } - - // Short-circuit without rescheduling, if timeout is zero. - if (timeout == 0) { - lock.CancelSleep(); - return RESULT_TIMEOUT; - } - - current_thread->SetSynchronizationResults(nullptr, RESULT_TIMEOUT); - current_thread->SetArbiterWaitAddress(address); - InsertThread(SharedFrom(current_thread)); - current_thread->SetState(ThreadState::Waiting); - current_thread->WaitForArbitration(true); - } - - if (event_handle != InvalidHandle) { - auto& time_manager = kernel.TimeManager(); - time_manager.UnscheduleTimeEvent(event_handle); - } - - { - KScopedSchedulerLock lock(kernel); - if (current_thread->IsWaitingForArbitration()) { - RemoveThread(SharedFrom(current_thread)); - current_thread->WaitForArbitration(false); - } - } - - return current_thread->GetSignalingResult(); -} - -void AddressArbiter::InsertThread(std::shared_ptr<Thread> thread) { - const VAddr arb_addr = thread->GetArbiterWaitAddress(); - std::list<std::shared_ptr<Thread>>& thread_list = arb_threads[arb_addr]; - - const auto iter = - std::find_if(thread_list.cbegin(), thread_list.cend(), [&thread](const auto& entry) { - return entry->GetPriority() >= thread->GetPriority(); - }); - - if (iter == thread_list.cend()) { - thread_list.push_back(std::move(thread)); - } else { - thread_list.insert(iter, std::move(thread)); - } -} - -void AddressArbiter::RemoveThread(std::shared_ptr<Thread> thread) { - const VAddr arb_addr = thread->GetArbiterWaitAddress(); - std::list<std::shared_ptr<Thread>>& thread_list = arb_threads[arb_addr]; - - const auto iter = std::find_if(thread_list.cbegin(), thread_list.cend(), - [&thread](const auto& entry) { return thread == entry; }); - - if (iter != thread_list.cend()) { - thread_list.erase(iter); - } -} - -std::vector<std::shared_ptr<Thread>> AddressArbiter::GetThreadsWaitingOnAddress( - VAddr address) const { - const auto iter = arb_threads.find(address); - if (iter == arb_threads.cend()) { - return {}; - } - - const std::list<std::shared_ptr<Thread>>& thread_list = iter->second; - return {thread_list.cbegin(), thread_list.cend()}; -} -} // namespace Kernel diff --git a/src/core/hle/kernel/address_arbiter.h b/src/core/hle/kernel/address_arbiter.h deleted file mode 100644 index b91edc67d..000000000 --- a/src/core/hle/kernel/address_arbiter.h +++ /dev/null @@ -1,91 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <list> -#include <memory> -#include <unordered_map> -#include <vector> - -#include "common/common_types.h" - -union ResultCode; - -namespace Core { -class System; -} - -namespace Kernel { - -class Thread; - -class AddressArbiter { -public: - enum class ArbitrationType { - WaitIfLessThan = 0, - DecrementAndWaitIfLessThan = 1, - WaitIfEqual = 2, - }; - - enum class SignalType { - Signal = 0, - IncrementAndSignalIfEqual = 1, - ModifyByWaitingCountAndSignalIfEqual = 2, - }; - - explicit AddressArbiter(Core::System& system); - ~AddressArbiter(); - - AddressArbiter(const AddressArbiter&) = delete; - AddressArbiter& operator=(const AddressArbiter&) = delete; - - AddressArbiter(AddressArbiter&&) = default; - AddressArbiter& operator=(AddressArbiter&&) = delete; - - /// Signals an address being waited on with a particular signaling type. - ResultCode SignalToAddress(VAddr address, SignalType type, s32 value, s32 num_to_wake); - - /// Waits on an address with a particular arbitration type. - ResultCode WaitForAddress(VAddr address, ArbitrationType type, s32 value, s64 timeout_ns); - -private: - /// Signals an address being waited on. - ResultCode SignalToAddressOnly(VAddr address, s32 num_to_wake); - - /// Signals an address being waited on and increments its value if equal to the value argument. - ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake); - - /// Signals an address being waited on and modifies its value based on waiting thread count if - /// equal to the value argument. - ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, - s32 num_to_wake); - - /// Waits on an address if the value passed is less than the argument value, - /// optionally decrementing. - ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, - bool should_decrement); - - /// Waits on an address if the value passed is equal to the argument value. - ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout); - - /// Wake up num_to_wake (or all) threads in a vector. - void WakeThreads(const std::vector<std::shared_ptr<Thread>>& waiting_threads, s32 num_to_wake); - - /// Insert a thread into the address arbiter container - void InsertThread(std::shared_ptr<Thread> thread); - - /// Removes a thread from the address arbiter container - void RemoveThread(std::shared_ptr<Thread> thread); - - // Gets the threads waiting on an address. - std::vector<std::shared_ptr<Thread>> GetThreadsWaitingOnAddress(VAddr address) const; - - /// List of threads waiting for a address arbiter - std::unordered_map<VAddr, std::list<std::shared_ptr<Thread>>> arb_threads; - - Core::System& system; -}; - -} // namespace Kernel diff --git a/src/core/hle/kernel/k_synchronization_object.cpp b/src/core/hle/kernel/k_synchronization_object.cpp index 64c566caa..11b989ecd 100644 --- a/src/core/hle/kernel/k_synchronization_object.cpp +++ b/src/core/hle/kernel/k_synchronization_object.cpp @@ -72,7 +72,7 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index, } // For debugging only - thread->SetWaitObjectsForDebugging(objects, num_objects); + thread->SetWaitObjectsForDebugging({objects, static_cast<std::size_t>(num_objects)}); // Mark the thread as waiting. thread->SetCancellable(); @@ -86,7 +86,7 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel, s32* out_index, thread->ClearCancellable(); // For debugging only - thread->SetWaitObjectsForDebugging(nullptr, 0); + thread->SetWaitObjectsForDebugging({}); // Cancel the timer as needed. if (timer != InvalidHandle) { diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp deleted file mode 100644 index 8a0faacf8..000000000 --- a/src/core/hle/kernel/mutex.cpp +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright 2014 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <memory> -#include <utility> -#include <vector> - -#include "common/assert.h" -#include "common/logging/log.h" -#include "core/core.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/kernel.h" -#include "core/hle/kernel/mutex.h" -#include "core/hle/kernel/object.h" -#include "core/hle/kernel/process.h" -#include "core/hle/kernel/thread.h" -#include "core/hle/result.h" -#include "core/memory.h" - -namespace Kernel { - -/// Returns the number of threads that are waiting for a mutex, and the highest priority one among -/// those. -static std::pair<std::shared_ptr<Thread>, u32> GetHighestPriorityMutexWaitingThread( - const std::shared_ptr<Thread>& current_thread, VAddr mutex_addr) { - - std::shared_ptr<Thread> highest_priority_thread; - u32 num_waiters = 0; - - for (const auto& thread : current_thread->GetMutexWaitingThreads()) { - if (thread->GetMutexWaitAddress() != mutex_addr) - continue; - - ++num_waiters; - if (highest_priority_thread == nullptr || - thread->GetPriority() < highest_priority_thread->GetPriority()) { - highest_priority_thread = thread; - } - } - - return {highest_priority_thread, num_waiters}; -} - -/// Update the mutex owner field of all threads waiting on the mutex to point to the new owner. -static void TransferMutexOwnership(VAddr mutex_addr, std::shared_ptr<Thread> current_thread, - std::shared_ptr<Thread> new_owner) { - current_thread->RemoveMutexWaiter(new_owner); - const auto threads = current_thread->GetMutexWaitingThreads(); - for (const auto& thread : threads) { - if (thread->GetMutexWaitAddress() != mutex_addr) - continue; - - ASSERT(thread->GetLockOwner() == current_thread.get()); - current_thread->RemoveMutexWaiter(thread); - if (new_owner != thread) - new_owner->AddMutexWaiter(thread); - } -} - -Mutex::Mutex(Core::System& system) : system{system} {} -Mutex::~Mutex() = default; - -ResultCode Mutex::TryAcquire(VAddr address, Handle holding_thread_handle, - Handle requesting_thread_handle) { - // The mutex address must be 4-byte aligned - if ((address % sizeof(u32)) != 0) { - LOG_ERROR(Kernel, "Address is not 4-byte aligned! address={:016X}", address); - return ERR_INVALID_ADDRESS; - } - - auto& kernel = system.Kernel(); - std::shared_ptr<Thread> current_thread = - SharedFrom(kernel.CurrentScheduler()->GetCurrentThread()); - { - KScopedSchedulerLock lock(kernel); - // The mutex address must be 4-byte aligned - if ((address % sizeof(u32)) != 0) { - return ERR_INVALID_ADDRESS; - } - - const auto& handle_table = kernel.CurrentProcess()->GetHandleTable(); - std::shared_ptr<Thread> holding_thread = handle_table.Get<Thread>(holding_thread_handle); - std::shared_ptr<Thread> requesting_thread = - handle_table.Get<Thread>(requesting_thread_handle); - - // TODO(Subv): It is currently unknown if it is possible to lock a mutex in behalf of - // another thread. - ASSERT(requesting_thread == current_thread); - - current_thread->SetSynchronizationResults(nullptr, RESULT_SUCCESS); - - const u32 addr_value = system.Memory().Read32(address); - - // If the mutex isn't being held, just return success. - if (addr_value != (holding_thread_handle | Mutex::MutexHasWaitersFlag)) { - return RESULT_SUCCESS; - } - - if (holding_thread == nullptr) { - return ERR_INVALID_HANDLE; - } - - // Wait until the mutex is released - current_thread->SetMutexWaitAddress(address); - current_thread->SetWaitHandle(requesting_thread_handle); - - current_thread->SetState(ThreadState::Waiting); - - // Update the lock holder thread's priority to prevent priority inversion. - holding_thread->AddMutexWaiter(current_thread); - } - - { - KScopedSchedulerLock lock(kernel); - auto* owner = current_thread->GetLockOwner(); - if (owner != nullptr) { - owner->RemoveMutexWaiter(current_thread); - } - } - return current_thread->GetSignalingResult(); -} - -std::pair<ResultCode, std::shared_ptr<Thread>> Mutex::Unlock(std::shared_ptr<Thread> owner, - VAddr address) { - // The mutex address must be 4-byte aligned - if ((address % sizeof(u32)) != 0) { - LOG_ERROR(Kernel, "Address is not 4-byte aligned! address={:016X}", address); - return {ERR_INVALID_ADDRESS, nullptr}; - } - - auto [new_owner, num_waiters] = GetHighestPriorityMutexWaitingThread(owner, address); - if (new_owner == nullptr) { - system.Memory().Write32(address, 0); - return {RESULT_SUCCESS, nullptr}; - } - // Transfer the ownership of the mutex from the previous owner to the new one. - TransferMutexOwnership(address, owner, new_owner); - u32 mutex_value = new_owner->GetWaitHandle(); - if (num_waiters >= 2) { - // Notify the guest that there are still some threads waiting for the mutex - mutex_value |= Mutex::MutexHasWaitersFlag; - } - new_owner->SetSynchronizationResults(nullptr, RESULT_SUCCESS); - new_owner->SetLockOwner(nullptr); - new_owner->Wakeup(); - - system.Memory().Write32(address, mutex_value); - return {RESULT_SUCCESS, new_owner}; -} - -ResultCode Mutex::Release(VAddr address) { - auto& kernel = system.Kernel(); - KScopedSchedulerLock lock(kernel); - - std::shared_ptr<Thread> current_thread = - SharedFrom(kernel.CurrentScheduler()->GetCurrentThread()); - - auto [result, new_owner] = Unlock(current_thread, address); - - if (result != RESULT_SUCCESS && new_owner != nullptr) { - new_owner->SetSynchronizationResults(nullptr, result); - } - - return result; -} - -} // namespace Kernel diff --git a/src/core/hle/kernel/mutex.h b/src/core/hle/kernel/mutex.h deleted file mode 100644 index 3b81dc3df..000000000 --- a/src/core/hle/kernel/mutex.h +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2014 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include "common/common_types.h" - -union ResultCode; - -namespace Core { -class System; -} - -namespace Kernel { - -class Mutex final { -public: - explicit Mutex(Core::System& system); - ~Mutex(); - - /// Flag that indicates that a mutex still has threads waiting for it. - static constexpr u32 MutexHasWaitersFlag = 0x40000000; - /// Mask of the bits in a mutex address value that contain the mutex owner. - static constexpr u32 MutexOwnerMask = 0xBFFFFFFF; - - /// Attempts to acquire a mutex at the specified address. - ResultCode TryAcquire(VAddr address, Handle holding_thread_handle, - Handle requesting_thread_handle); - - /// Unlocks a mutex for owner at address - std::pair<ResultCode, std::shared_ptr<Thread>> Unlock(std::shared_ptr<Thread> owner, - VAddr address); - - /// Releases the mutex at the specified address. - ResultCode Release(VAddr address); - -private: - Core::System& system; -}; - -} // namespace Kernel diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp index a306c7c73..37b77fa6e 100644 --- a/src/core/hle/kernel/process.cpp +++ b/src/core/hle/kernel/process.cpp @@ -162,48 +162,6 @@ u64 Process::GetTotalPhysicalMemoryUsedWithoutSystemResource() const { return GetTotalPhysicalMemoryUsed() - GetSystemResourceUsage(); } -void Process::InsertConditionVariableThread(std::shared_ptr<Thread> thread) { - VAddr cond_var_addr = thread->GetCondVarWaitAddress(); - std::list<std::shared_ptr<Thread>>& thread_list = cond_var_threads[cond_var_addr]; - auto it = thread_list.begin(); - while (it != thread_list.end()) { - const std::shared_ptr<Thread> current_thread = *it; - if (current_thread->GetPriority() > thread->GetPriority()) { - thread_list.insert(it, thread); - return; - } - ++it; - } - thread_list.push_back(thread); -} - -void Process::RemoveConditionVariableThread(std::shared_ptr<Thread> thread) { - VAddr cond_var_addr = thread->GetCondVarWaitAddress(); - std::list<std::shared_ptr<Thread>>& thread_list = cond_var_threads[cond_var_addr]; - auto it = thread_list.begin(); - while (it != thread_list.end()) { - const std::shared_ptr<Thread> current_thread = *it; - if (current_thread.get() == thread.get()) { - thread_list.erase(it); - return; - } - ++it; - } -} - -std::vector<std::shared_ptr<Thread>> Process::GetConditionVariableThreads( - const VAddr cond_var_addr) { - std::vector<std::shared_ptr<Thread>> result{}; - std::list<std::shared_ptr<Thread>>& thread_list = cond_var_threads[cond_var_addr]; - auto it = thread_list.begin(); - while (it != thread_list.end()) { - std::shared_ptr<Thread> current_thread = *it; - result.push_back(current_thread); - ++it; - } - return result; -} - void Process::RegisterThread(const Thread* thread) { thread_list.push_back(thread); } @@ -412,9 +370,9 @@ bool Process::IsSignaled() const { } Process::Process(Core::System& system) - : KSynchronizationObject{system.Kernel()}, page_table{std::make_unique<Memory::PageTable>( - system)}, - handle_table{system.Kernel()}, address_arbiter{system}, mutex{system}, system{system} {} + : KSynchronizationObject{system.Kernel()}, + page_table{std::make_unique<Memory::PageTable>(system)}, handle_table{system.Kernel()}, + address_arbiter{system}, condition_var{system}, system{system} {} Process::~Process() = default; diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h index 901f1ff27..564e1f27d 100644 --- a/src/core/hle/kernel/process.h +++ b/src/core/hle/kernel/process.h @@ -11,10 +11,10 @@ #include <unordered_map> #include <vector> #include "common/common_types.h" -#include "core/hle/kernel/address_arbiter.h" #include "core/hle/kernel/handle_table.h" +#include "core/hle/kernel/k_address_arbiter.h" +#include "core/hle/kernel/k_condition_variable.h" #include "core/hle/kernel/k_synchronization_object.h" -#include "core/hle/kernel/mutex.h" #include "core/hle/kernel/process_capability.h" #include "core/hle/result.h" @@ -123,24 +123,30 @@ public: return handle_table; } - /// Gets a reference to the process' address arbiter. - AddressArbiter& GetAddressArbiter() { - return address_arbiter; + ResultCode SignalToAddress(VAddr address) { + return condition_var.SignalToAddress(address); } - /// Gets a const reference to the process' address arbiter. - const AddressArbiter& GetAddressArbiter() const { - return address_arbiter; + ResultCode WaitForAddress(Handle handle, VAddr address, u32 tag) { + return condition_var.WaitForAddress(handle, address, tag); } - /// Gets a reference to the process' mutex lock. - Mutex& GetMutex() { - return mutex; + void SignalConditionVariable(u64 cv_key, int32_t count) { + return condition_var.Signal(cv_key, count); } - /// Gets a const reference to the process' mutex lock - const Mutex& GetMutex() const { - return mutex; + ResultCode WaitConditionVariable(VAddr address, u64 cv_key, u32 tag, s64 ns) { + return condition_var.Wait(address, cv_key, tag, ns); + } + + ResultCode SignalAddressArbiter(VAddr address, Svc::SignalType signal_type, s32 value, + s32 count) { + return address_arbiter.SignalToAddress(address, signal_type, value, count); + } + + ResultCode WaitAddressArbiter(VAddr address, Svc::ArbitrationType arb_type, s32 value, + s64 timeout) { + return address_arbiter.WaitForAddress(address, arb_type, value, timeout); } /// Gets the address to the process' dedicated TLS region. @@ -250,15 +256,6 @@ public: return thread_list; } - /// Insert a thread into the condition variable wait container - void InsertConditionVariableThread(std::shared_ptr<Thread> thread); - - /// Remove a thread from the condition variable wait container - void RemoveConditionVariableThread(std::shared_ptr<Thread> thread); - - /// Obtain all condition variable threads waiting for some address - std::vector<std::shared_ptr<Thread>> GetConditionVariableThreads(VAddr cond_var_addr); - /// Registers a thread as being created under this process, /// adding it to this process' thread list. void RegisterThread(const Thread* thread); @@ -369,12 +366,12 @@ private: HandleTable handle_table; /// Per-process address arbiter. - AddressArbiter address_arbiter; + KAddressArbiter address_arbiter; /// The per-process mutex lock instance used for handling various /// forms of services, such as lock arbitration, and condition /// variable related facilities. - Mutex mutex; + KConditionVariable condition_var; /// Address indicating the location of the process' dedicated TLS region. VAddr tls_region_address = 0; @@ -385,9 +382,6 @@ private: /// List of threads that are running with this process as their owner. std::list<const Thread*> thread_list; - /// List of threads waiting for a condition variable - std::unordered_map<VAddr, std::list<std::shared_ptr<Thread>>> cond_var_threads; - /// Address of the top of the main thread's stack VAddr main_thread_stack_top{}; diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 304b8727d..99bb4ea20 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -10,6 +10,7 @@ #include "common/alignment.h" #include "common/assert.h" +#include "common/common_funcs.h" #include "common/fiber.h" #include "common/logging/log.h" #include "common/microprofile.h" @@ -19,24 +20,26 @@ #include "core/core_timing.h" #include "core/core_timing_util.h" #include "core/cpu_manager.h" -#include "core/hle/kernel/address_arbiter.h" #include "core/hle/kernel/client_port.h" #include "core/hle/kernel/client_session.h" #include "core/hle/kernel/errors.h" #include "core/hle/kernel/handle_table.h" +#include "core/hle/kernel/k_address_arbiter.h" +#include "core/hle/kernel/k_condition_variable.h" #include "core/hle/kernel/k_scheduler.h" #include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h" #include "core/hle/kernel/k_synchronization_object.h" #include "core/hle/kernel/kernel.h" #include "core/hle/kernel/memory/memory_block.h" +#include "core/hle/kernel/memory/memory_layout.h" #include "core/hle/kernel/memory/page_table.h" -#include "core/hle/kernel/mutex.h" #include "core/hle/kernel/physical_core.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/readable_event.h" #include "core/hle/kernel/resource_limit.h" #include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/svc.h" +#include "core/hle/kernel/svc_results.h" #include "core/hle/kernel/svc_types.h" #include "core/hle/kernel/svc_wrap.h" #include "core/hle/kernel/thread.h" @@ -347,12 +350,6 @@ static ResultCode SendSyncRequest(Core::System& system, Handle handle) { session->SendSyncRequest(SharedFrom(thread), system.Memory(), system.CoreTiming()); } - Handle event_handle = thread->GetHLETimeEvent(); - if (event_handle != InvalidHandle) { - auto& time_manager = kernel.TimeManager(); - time_manager.UnscheduleTimeEvent(event_handle); - } - return thread->GetSignalingResult(); } @@ -491,56 +488,37 @@ static ResultCode CancelSynchronization32(Core::System& system, Handle thread_ha return CancelSynchronization(system, thread_handle); } -/// Attempts to locks a mutex, creating it if it does not already exist -static ResultCode ArbitrateLock(Core::System& system, Handle holding_thread_handle, - VAddr mutex_addr, Handle requesting_thread_handle) { - LOG_TRACE(Kernel_SVC, - "called holding_thread_handle=0x{:08X}, mutex_addr=0x{:X}, " - "requesting_current_thread_handle=0x{:08X}", - holding_thread_handle, mutex_addr, requesting_thread_handle); - - if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) { - LOG_ERROR(Kernel_SVC, "Mutex Address is a kernel virtual address, mutex_addr={:016X}", - mutex_addr); - return ERR_INVALID_ADDRESS_STATE; - } +/// Attempts to locks a mutex +static ResultCode ArbitrateLock(Core::System& system, Handle thread_handle, VAddr address, + u32 tag) { + LOG_TRACE(Kernel_SVC, "called thread_handle=0x{:08X}, address=0x{:X}, tag=0x{:08X}", + thread_handle, address, tag); - if (!Common::IsWordAligned(mutex_addr)) { - LOG_ERROR(Kernel_SVC, "Mutex Address is not word aligned, mutex_addr={:016X}", mutex_addr); - return ERR_INVALID_ADDRESS; - } + // Validate the input address. + R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); + R_UNLESS(Common::IsAligned(address, sizeof(u32)), Svc::ResultInvalidAddress); - auto* const current_process = system.Kernel().CurrentProcess(); - return current_process->GetMutex().TryAcquire(mutex_addr, holding_thread_handle, - requesting_thread_handle); + return system.Kernel().CurrentProcess()->WaitForAddress(thread_handle, address, tag); } -static ResultCode ArbitrateLock32(Core::System& system, Handle holding_thread_handle, - u32 mutex_addr, Handle requesting_thread_handle) { - return ArbitrateLock(system, holding_thread_handle, mutex_addr, requesting_thread_handle); +static ResultCode ArbitrateLock32(Core::System& system, Handle thread_handle, u32 address, + u32 tag) { + return ArbitrateLock(system, thread_handle, address, tag); } /// Unlock a mutex -static ResultCode ArbitrateUnlock(Core::System& system, VAddr mutex_addr) { - LOG_TRACE(Kernel_SVC, "called mutex_addr=0x{:X}", mutex_addr); +static ResultCode ArbitrateUnlock(Core::System& system, VAddr address) { + LOG_TRACE(Kernel_SVC, "called address=0x{:X}", address); - if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) { - LOG_ERROR(Kernel_SVC, "Mutex Address is a kernel virtual address, mutex_addr={:016X}", - mutex_addr); - return ERR_INVALID_ADDRESS_STATE; - } + // Validate the input address. + R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); + R_UNLESS(Common::IsAligned(address, sizeof(u32)), Svc::ResultInvalidAddress); - if (!Common::IsWordAligned(mutex_addr)) { - LOG_ERROR(Kernel_SVC, "Mutex Address is not word aligned, mutex_addr={:016X}", mutex_addr); - return ERR_INVALID_ADDRESS; - } - - auto* const current_process = system.Kernel().CurrentProcess(); - return current_process->GetMutex().Release(mutex_addr); + return system.Kernel().CurrentProcess()->SignalToAddress(address); } -static ResultCode ArbitrateUnlock32(Core::System& system, u32 mutex_addr) { - return ArbitrateUnlock(system, mutex_addr); +static ResultCode ArbitrateUnlock32(Core::System& system, u32 address) { + return ArbitrateUnlock(system, address); } enum class BreakType : u32 { @@ -1167,7 +1145,7 @@ static ResultCode SetThreadPriority(Core::System& system, Handle handle, u32 pri return ERR_INVALID_HANDLE; } - thread->SetPriority(priority); + thread->SetBasePriority(priority); return RESULT_SUCCESS; } @@ -1607,223 +1585,135 @@ static void SleepThread32(Core::System& system, u32 nanoseconds_low, u32 nanosec } /// Wait process wide key atomic -static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr mutex_addr, - VAddr condition_variable_addr, Handle thread_handle, - s64 nano_seconds) { - LOG_TRACE( - Kernel_SVC, - "called mutex_addr={:X}, condition_variable_addr={:X}, thread_handle=0x{:08X}, timeout={}", - mutex_addr, condition_variable_addr, thread_handle, nano_seconds); - - if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) { - LOG_ERROR( - Kernel_SVC, - "Given mutex address must not be within the kernel address space. address=0x{:016X}", - mutex_addr); - return ERR_INVALID_ADDRESS_STATE; - } - - if (!Common::IsWordAligned(mutex_addr)) { - LOG_ERROR(Kernel_SVC, "Given mutex address must be word-aligned. address=0x{:016X}", - mutex_addr); - return ERR_INVALID_ADDRESS; - } - - ASSERT(condition_variable_addr == Common::AlignDown(condition_variable_addr, 4)); - auto& kernel = system.Kernel(); - Handle event_handle; - Thread* current_thread = kernel.CurrentScheduler()->GetCurrentThread(); - auto* const current_process = kernel.CurrentProcess(); - { - KScopedSchedulerLockAndSleep lock(kernel, event_handle, current_thread, nano_seconds); - const auto& handle_table = current_process->GetHandleTable(); - std::shared_ptr<Thread> thread = handle_table.Get<Thread>(thread_handle); - ASSERT(thread); - - current_thread->SetSynchronizationResults(nullptr, RESULT_TIMEOUT); - - if (thread->IsTerminationRequested()) { - lock.CancelSleep(); - return ERR_THREAD_TERMINATING; - } - - const auto release_result = current_process->GetMutex().Release(mutex_addr); - if (release_result.IsError()) { - lock.CancelSleep(); - return release_result; - } - - if (nano_seconds == 0) { - lock.CancelSleep(); - return RESULT_TIMEOUT; - } - - current_thread->SetCondVarWaitAddress(condition_variable_addr); - current_thread->SetMutexWaitAddress(mutex_addr); - current_thread->SetWaitHandle(thread_handle); - current_thread->SetState(ThreadState::Waiting); - current_thread->SetWaitingCondVar(true); - current_process->InsertConditionVariableThread(SharedFrom(current_thread)); - } - - if (event_handle != InvalidHandle) { - auto& time_manager = kernel.TimeManager(); - time_manager.UnscheduleTimeEvent(event_handle); - } - - { - KScopedSchedulerLock lock(kernel); - - auto* owner = current_thread->GetLockOwner(); - if (owner != nullptr) { - owner->RemoveMutexWaiter(SharedFrom(current_thread)); +static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr address, VAddr cv_key, + u32 tag, s64 timeout_ns) { + LOG_TRACE(Kernel_SVC, "called address={:X}, cv_key={:X}, tag=0x{:08X}, timeout_ns={}", address, + cv_key, tag, timeout_ns); + + // Validate input. + R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); + R_UNLESS(Common::IsAligned(address, sizeof(int32_t)), Svc::ResultInvalidAddress); + + // Convert timeout from nanoseconds to ticks. + s64 timeout{}; + if (timeout_ns > 0) { + const s64 offset_tick(timeout_ns); + if (offset_tick > 0) { + timeout = offset_tick + 2; + if (timeout <= 0) { + timeout = std::numeric_limits<s64>::max(); + } + } else { + timeout = std::numeric_limits<s64>::max(); } - - current_process->RemoveConditionVariableThread(SharedFrom(current_thread)); + } else { + timeout = timeout_ns; } - // Note: Deliberately don't attempt to inherit the lock owner's priority. - return current_thread->GetSignalingResult(); + // Wait on the condition variable. + return system.Kernel().CurrentProcess()->WaitConditionVariable( + address, Common::AlignDown(cv_key, sizeof(u32)), tag, timeout); } -static ResultCode WaitProcessWideKeyAtomic32(Core::System& system, u32 mutex_addr, - u32 condition_variable_addr, Handle thread_handle, - u32 nanoseconds_low, u32 nanoseconds_high) { - const auto nanoseconds = static_cast<s64>(nanoseconds_low | (u64{nanoseconds_high} << 32)); - return WaitProcessWideKeyAtomic(system, mutex_addr, condition_variable_addr, thread_handle, - nanoseconds); +static ResultCode WaitProcessWideKeyAtomic32(Core::System& system, u32 address, u32 cv_key, u32 tag, + u32 timeout_ns_low, u32 timeout_ns_high) { + const auto timeout_ns = static_cast<s64>(timeout_ns_low | (u64{timeout_ns_high} << 32)); + return WaitProcessWideKeyAtomic(system, address, cv_key, tag, timeout_ns); } /// Signal process wide key -static void SignalProcessWideKey(Core::System& system, VAddr condition_variable_addr, s32 target) { - LOG_TRACE(Kernel_SVC, "called, condition_variable_addr=0x{:X}, target=0x{:08X}", - condition_variable_addr, target); +static void SignalProcessWideKey(Core::System& system, VAddr cv_key, s32 count) { + LOG_TRACE(Kernel_SVC, "called, cv_key=0x{:X}, count=0x{:08X}", cv_key, count); + + // Signal the condition variable. + return system.Kernel().CurrentProcess()->SignalConditionVariable( + Common::AlignDown(cv_key, sizeof(u32)), count); +} - ASSERT(condition_variable_addr == Common::AlignDown(condition_variable_addr, 4)); +static void SignalProcessWideKey32(Core::System& system, u32 cv_key, s32 count) { + SignalProcessWideKey(system, cv_key, count); +} - // Retrieve a list of all threads that are waiting for this condition variable. - auto& kernel = system.Kernel(); - KScopedSchedulerLock lock(kernel); - auto* const current_process = kernel.CurrentProcess(); - std::vector<std::shared_ptr<Thread>> waiting_threads = - current_process->GetConditionVariableThreads(condition_variable_addr); - - // Only process up to 'target' threads, unless 'target' is less equal 0, in which case process - // them all. - std::size_t last = waiting_threads.size(); - if (target > 0) { - last = std::min(waiting_threads.size(), static_cast<std::size_t>(target)); - } - for (std::size_t index = 0; index < last; ++index) { - auto& thread = waiting_threads[index]; - - ASSERT(thread->GetCondVarWaitAddress() == condition_variable_addr); - - // liberate Cond Var Thread. - current_process->RemoveConditionVariableThread(thread); - - const std::size_t current_core = system.CurrentCoreIndex(); - auto& monitor = system.Monitor(); - - // Atomically read the value of the mutex. - u32 mutex_val = 0; - u32 update_val = 0; - const VAddr mutex_address = thread->GetMutexWaitAddress(); - do { - // If the mutex is not yet acquired, acquire it. - mutex_val = monitor.ExclusiveRead32(current_core, mutex_address); - - if (mutex_val != 0) { - update_val = mutex_val | Mutex::MutexHasWaitersFlag; - } else { - update_val = thread->GetWaitHandle(); - } - } while (!monitor.ExclusiveWrite32(current_core, mutex_address, update_val)); - monitor.ClearExclusive(); - if (mutex_val == 0) { - // We were able to acquire the mutex, resume this thread. - auto* const lock_owner = thread->GetLockOwner(); - if (lock_owner != nullptr) { - lock_owner->RemoveMutexWaiter(thread); - } +namespace { - thread->SetLockOwner(nullptr); - thread->SetSynchronizationResults(nullptr, RESULT_SUCCESS); - thread->Wakeup(); - } else { - // The mutex is already owned by some other thread, make this thread wait on it. - const Handle owner_handle = static_cast<Handle>(mutex_val & Mutex::MutexOwnerMask); - const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); - auto owner = handle_table.Get<Thread>(owner_handle); - ASSERT(owner); - thread->SetWaitingCondVar(false); - - owner->AddMutexWaiter(thread); - } +constexpr bool IsValidSignalType(Svc::SignalType type) { + switch (type) { + case Svc::SignalType::Signal: + case Svc::SignalType::SignalAndIncrementIfEqual: + case Svc::SignalType::SignalAndModifyByWaitingCountIfEqual: + return true; + default: + return false; } } -static void SignalProcessWideKey32(Core::System& system, u32 condition_variable_addr, s32 target) { - SignalProcessWideKey(system, condition_variable_addr, target); +constexpr bool IsValidArbitrationType(Svc::ArbitrationType type) { + switch (type) { + case Svc::ArbitrationType::WaitIfLessThan: + case Svc::ArbitrationType::DecrementAndWaitIfLessThan: + case Svc::ArbitrationType::WaitIfEqual: + return true; + default: + return false; + } } -// Wait for an address (via Address Arbiter) -static ResultCode WaitForAddress(Core::System& system, VAddr address, u32 type, s32 value, - s64 timeout) { - LOG_TRACE(Kernel_SVC, "called, address=0x{:X}, type=0x{:X}, value=0x{:X}, timeout={}", address, - type, value, timeout); - - // If the passed address is a kernel virtual address, return invalid memory state. - if (Core::Memory::IsKernelVirtualAddress(address)) { - LOG_ERROR(Kernel_SVC, "Address is a kernel virtual address, address={:016X}", address); - return ERR_INVALID_ADDRESS_STATE; - } +} // namespace - // If the address is not properly aligned to 4 bytes, return invalid address. - if (!Common::IsWordAligned(address)) { - LOG_ERROR(Kernel_SVC, "Address is not word aligned, address={:016X}", address); - return ERR_INVALID_ADDRESS; +// Wait for an address (via Address Arbiter) +static ResultCode WaitForAddress(Core::System& system, VAddr address, Svc::ArbitrationType arb_type, + s32 value, s64 timeout_ns) { + LOG_TRACE(Kernel_SVC, "called, address=0x{:X}, arb_type=0x{:X}, value=0x{:X}, timeout_ns={}", + address, arb_type, value, timeout_ns); + + // Validate input. + R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); + R_UNLESS(Common::IsAligned(address, sizeof(int32_t)), Svc::ResultInvalidAddress); + R_UNLESS(IsValidArbitrationType(arb_type), Svc::ResultInvalidEnumValue); + + // Convert timeout from nanoseconds to ticks. + s64 timeout{}; + if (timeout_ns > 0) { + const s64 offset_tick(timeout_ns); + if (offset_tick > 0) { + timeout = offset_tick + 2; + if (timeout <= 0) { + timeout = std::numeric_limits<s64>::max(); + } + } else { + timeout = std::numeric_limits<s64>::max(); + } + } else { + timeout = timeout_ns; } - const auto arbitration_type = static_cast<AddressArbiter::ArbitrationType>(type); - auto& address_arbiter = system.Kernel().CurrentProcess()->GetAddressArbiter(); - const ResultCode result = - address_arbiter.WaitForAddress(address, arbitration_type, value, timeout); - return result; + return system.Kernel().CurrentProcess()->WaitAddressArbiter(address, arb_type, value, timeout); } -static ResultCode WaitForAddress32(Core::System& system, u32 address, u32 type, s32 value, - u32 timeout_low, u32 timeout_high) { - const auto timeout = static_cast<s64>(timeout_low | (u64{timeout_high} << 32)); - return WaitForAddress(system, address, type, value, timeout); +static ResultCode WaitForAddress32(Core::System& system, u32 address, Svc::ArbitrationType arb_type, + s32 value, u32 timeout_ns_low, u32 timeout_ns_high) { + const auto timeout = static_cast<s64>(timeout_ns_low | (u64{timeout_ns_high} << 32)); + return WaitForAddress(system, address, arb_type, value, timeout); } // Signals to an address (via Address Arbiter) -static ResultCode SignalToAddress(Core::System& system, VAddr address, u32 type, s32 value, - s32 num_to_wake) { - LOG_TRACE(Kernel_SVC, "called, address=0x{:X}, type=0x{:X}, value=0x{:X}, num_to_wake=0x{:X}", - address, type, value, num_to_wake); - - // If the passed address is a kernel virtual address, return invalid memory state. - if (Core::Memory::IsKernelVirtualAddress(address)) { - LOG_ERROR(Kernel_SVC, "Address is a kernel virtual address, address={:016X}", address); - return ERR_INVALID_ADDRESS_STATE; - } +static ResultCode SignalToAddress(Core::System& system, VAddr address, Svc::SignalType signal_type, + s32 value, s32 count) { + LOG_TRACE(Kernel_SVC, "called, address=0x{:X}, signal_type=0x{:X}, value=0x{:X}, count=0x{:X}", + address, signal_type, value, count); - // If the address is not properly aligned to 4 bytes, return invalid address. - if (!Common::IsWordAligned(address)) { - LOG_ERROR(Kernel_SVC, "Address is not word aligned, address={:016X}", address); - return ERR_INVALID_ADDRESS; - } + // Validate input. + R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); + R_UNLESS(Common::IsAligned(address, sizeof(s32)), Svc::ResultInvalidAddress); + R_UNLESS(IsValidSignalType(signal_type), Svc::ResultInvalidEnumValue); - const auto signal_type = static_cast<AddressArbiter::SignalType>(type); - auto& address_arbiter = system.Kernel().CurrentProcess()->GetAddressArbiter(); - return address_arbiter.SignalToAddress(address, signal_type, value, num_to_wake); + return system.Kernel().CurrentProcess()->SignalAddressArbiter(address, signal_type, value, + count); } -static ResultCode SignalToAddress32(Core::System& system, u32 address, u32 type, s32 value, - s32 num_to_wake) { - return SignalToAddress(system, address, type, value, num_to_wake); +static ResultCode SignalToAddress32(Core::System& system, u32 address, Svc::SignalType signal_type, + s32 value, s32 count) { + return SignalToAddress(system, address, signal_type, value, count); } static void KernelDebug([[maybe_unused]] Core::System& system, diff --git a/src/core/hle/kernel/svc_common.h b/src/core/hle/kernel/svc_common.h index 7734bb236..4af049551 100644 --- a/src/core/hle/kernel/svc_common.h +++ b/src/core/hle/kernel/svc_common.h @@ -8,6 +8,7 @@ namespace Kernel::Svc { +constexpr s32 ArgumentHandleCountMax = 0x40; constexpr u32 HandleWaitMask{1u << 30}; } // namespace Kernel::Svc diff --git a/src/core/hle/kernel/svc_wrap.h b/src/core/hle/kernel/svc_wrap.h index f94c487ba..a32750ed7 100644 --- a/src/core/hle/kernel/svc_wrap.h +++ b/src/core/hle/kernel/svc_wrap.h @@ -7,6 +7,7 @@ #include "common/common_types.h" #include "core/arm/arm_interface.h" #include "core/core.h" +#include "core/hle/kernel/svc_types.h" #include "core/hle/result.h" namespace Kernel { @@ -277,18 +278,22 @@ void SvcWrap64(Core::System& system) { FuncReturn(system, retval); } -template <ResultCode func(Core::System&, u64, u32, s32, s64)> +// Used by WaitForAddress +template <ResultCode func(Core::System&, u64, Svc::ArbitrationType, s32, s64)> void SvcWrap64(Core::System& system) { - FuncReturn(system, func(system, Param(system, 0), static_cast<u32>(Param(system, 1)), - static_cast<s32>(Param(system, 2)), static_cast<s64>(Param(system, 3))) - .raw); + FuncReturn(system, + func(system, Param(system, 0), static_cast<Svc::ArbitrationType>(Param(system, 1)), + static_cast<s32>(Param(system, 2)), static_cast<s64>(Param(system, 3))) + .raw); } -template <ResultCode func(Core::System&, u64, u32, s32, s32)> +// Used by SignalToAddress +template <ResultCode func(Core::System&, u64, Svc::SignalType, s32, s32)> void SvcWrap64(Core::System& system) { - FuncReturn(system, func(system, Param(system, 0), static_cast<u32>(Param(system, 1)), - static_cast<s32>(Param(system, 2)), static_cast<s32>(Param(system, 3))) - .raw); + FuncReturn(system, + func(system, Param(system, 0), static_cast<Svc::SignalType>(Param(system, 1)), + static_cast<s32>(Param(system, 2)), static_cast<s32>(Param(system, 3))) + .raw); } //////////////////////////////////////////////////////////////////////////////////////////////////// @@ -504,22 +509,23 @@ void SvcWrap32(Core::System& system) { } // Used by WaitForAddress32 -template <ResultCode func(Core::System&, u32, u32, s32, u32, u32)> +template <ResultCode func(Core::System&, u32, Svc::ArbitrationType, s32, u32, u32)> void SvcWrap32(Core::System& system) { const u32 retval = func(system, static_cast<u32>(Param(system, 0)), - static_cast<u32>(Param(system, 1)), static_cast<s32>(Param(system, 2)), - static_cast<u32>(Param(system, 3)), static_cast<u32>(Param(system, 4))) + static_cast<Svc::ArbitrationType>(Param(system, 1)), + static_cast<s32>(Param(system, 2)), static_cast<u32>(Param(system, 3)), + static_cast<u32>(Param(system, 4))) .raw; FuncReturn(system, retval); } // Used by SignalToAddress32 -template <ResultCode func(Core::System&, u32, u32, s32, s32)> +template <ResultCode func(Core::System&, u32, Svc::SignalType, s32, s32)> void SvcWrap32(Core::System& system) { - const u32 retval = - func(system, static_cast<u32>(Param(system, 0)), static_cast<u32>(Param(system, 1)), - static_cast<s32>(Param(system, 2)), static_cast<s32>(Param(system, 3))) - .raw; + const u32 retval = func(system, static_cast<u32>(Param(system, 0)), + static_cast<Svc::SignalType>(Param(system, 1)), + static_cast<s32>(Param(system, 2)), static_cast<s32>(Param(system, 3))) + .raw; FuncReturn(system, retval); } diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 33a4e1fa3..eda56c31c 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -17,9 +17,11 @@ #include "core/hardware_properties.h" #include "core/hle/kernel/errors.h" #include "core/hle/kernel/handle_table.h" +#include "core/hle/kernel/k_condition_variable.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/memory/memory_layout.h" #include "core/hle/kernel/object.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/thread.h" @@ -62,24 +64,6 @@ void Thread::Stop() { void Thread::Wakeup() { KScopedSchedulerLock lock(kernel); - switch (thread_state) { - case ThreadState::Runnable: - // 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 ThreadState::Terminated: - // 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; - } - - SetState(ThreadState::Runnable); -} - -void Thread::OnWakeUp() { - KScopedSchedulerLock lock(kernel); SetState(ThreadState::Runnable); } @@ -167,15 +151,14 @@ ResultVal<std::shared_ptr<Thread>> Thread::Create(Core::System& system, ThreadTy thread->stack_top = stack_top; thread->disable_count = 1; thread->tpidr_el0 = 0; - thread->nominal_priority = thread->current_priority = priority; + thread->current_priority = priority; + thread->base_priority = priority; + thread->lock_owner = nullptr; 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->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; @@ -205,12 +188,17 @@ ResultVal<std::shared_ptr<Thread>> Thread::Create(Core::System& system, ThreadTy return MakeResult<std::shared_ptr<Thread>>(std::move(thread)); } -void Thread::SetPriority(u32 priority) { - KScopedSchedulerLock lock(kernel); +void Thread::SetBasePriority(u32 priority) { ASSERT_MSG(priority <= THREADPRIO_LOWEST && priority >= THREADPRIO_HIGHEST, "Invalid priority value."); - nominal_priority = priority; - UpdatePriority(); + + KScopedSchedulerLock lock(kernel); + + // Change our base priority. + base_priority = priority; + + // Perform a priority restoration. + RestorePriority(kernel, this); } void Thread::SetSynchronizationResults(KSynchronizationObject* object, ResultCode result) { @@ -224,95 +212,146 @@ VAddr Thread::GetCommandBufferAddress() const { return GetTLSAddress() + command_header_offset; } -void Thread::SetState(ThreadState new_status) { - if (new_status == thread_state) { - return; +void Thread::SetState(ThreadState state) { + KScopedSchedulerLock sl(kernel); + + SetMutexWaitAddressForDebugging(0); + const ThreadState old_state = thread_state; + thread_state = + static_cast<ThreadState>((old_state & ~ThreadState::Mask) | (state & ThreadState::Mask)); + if (thread_state != old_state) { + KScheduler::OnThreadStateChanged(kernel, this, old_state); } +} + +void Thread::AddWaiterImpl(Thread* thread) { + ASSERT(kernel.GlobalSchedulerContext().IsLocked()); - if (new_status != ThreadState::Waiting) { - SetWaitingCondVar(false); + // Find the right spot to insert the waiter. + auto it = waiter_list.begin(); + while (it != waiter_list.end()) { + if (it->GetPriority() > thread->GetPriority()) { + break; + } + it++; } - SetSchedulingStatus(new_status); + // Keep track of how many kernel waiters we have. + if (Memory::IsKernelAddressKey(thread->GetAddressKey())) { + ASSERT((num_kernel_waiters++) >= 0); + } - thread_state = new_status; + // Insert the waiter. + waiter_list.insert(it, *thread); + thread->SetLockOwner(this); } -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; +void Thread::RemoveWaiterImpl(Thread* thread) { + ASSERT(kernel.GlobalSchedulerContext().IsLocked()); + + // Keep track of how many kernel waiters we have. + if (Memory::IsKernelAddressKey(thread->GetAddressKey())) { + ASSERT((num_kernel_waiters--) > 0); } - // A thread can't wait on two different mutexes at the same time. - ASSERT(thread->lock_owner == nullptr); + // Remove the waiter. + waiter_list.erase(waiter_list.iterator_to(*thread)); + thread->SetLockOwner(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()); +void Thread::RestorePriority(KernelCore& kernel, Thread* thread) { + ASSERT(kernel.GlobalSchedulerContext().IsLocked()); - // 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); + while (true) { + // We want to inherit priority where possible. + s32 new_priority = thread->GetBasePriority(); + if (thread->HasWaiters()) { + new_priority = std::min(new_priority, thread->waiter_list.front().GetPriority()); + } - UpdatePriority(); -} + // If the priority we would inherit is not different from ours, don't do anything. + if (new_priority == thread->GetPriority()) { + return; + } -void Thread::RemoveMutexWaiter(std::shared_ptr<Thread> thread) { - ASSERT(thread->lock_owner.get() == this); + // Ensure we don't violate condition variable red black tree invariants. + if (auto* cv_tree = thread->GetConditionVariableTree(); cv_tree != nullptr) { + BeforeUpdatePriority(kernel, cv_tree, thread); + } - // 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()); + // Change the priority. + const s32 old_priority = thread->GetPriority(); + thread->SetPriority(new_priority); - wait_mutex_threads.erase(iter); + // Restore the condition variable, if relevant. + if (auto* cv_tree = thread->GetConditionVariableTree(); cv_tree != nullptr) { + AfterUpdatePriority(kernel, cv_tree, thread); + } - thread->lock_owner = nullptr; - UpdatePriority(); -} + // Update the scheduler. + KScheduler::OnThreadPriorityChanged(kernel, thread, old_priority); -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; + // Keep the lock owner up to date. + Thread* lock_owner = thread->GetLockOwner(); + if (lock_owner == nullptr) { + return; } - } - if (new_priority == current_priority) { - return; + // Update the thread in the lock owner's sorted list, and continue inheriting. + lock_owner->RemoveWaiterImpl(thread); + lock_owner->AddWaiterImpl(thread); + thread = lock_owner; } +} - if (GetState() == ThreadState::Waiting && is_waiting_on_condvar) { - owner_process->RemoveConditionVariableThread(SharedFrom(this)); - } +void Thread::AddWaiter(Thread* thread) { + AddWaiterImpl(thread); + RestorePriority(kernel, this); +} - SetCurrentPriority(new_priority); +void Thread::RemoveWaiter(Thread* thread) { + RemoveWaiterImpl(thread); + RestorePriority(kernel, this); +} - if (GetState() == ThreadState::Waiting && is_waiting_on_condvar) { - owner_process->InsertConditionVariableThread(SharedFrom(this)); - } +Thread* Thread::RemoveWaiterByKey(s32* out_num_waiters, VAddr key) { + ASSERT(kernel.GlobalSchedulerContext().IsLocked()); - if (!lock_owner) { - return; + s32 num_waiters{}; + Thread* next_lock_owner{}; + auto it = waiter_list.begin(); + while (it != waiter_list.end()) { + if (it->GetAddressKey() == key) { + Thread* thread = std::addressof(*it); + + // Keep track of how many kernel waiters we have. + if (Memory::IsKernelAddressKey(thread->GetAddressKey())) { + ASSERT((num_kernel_waiters--) > 0); + } + it = waiter_list.erase(it); + + // Update the next lock owner. + if (next_lock_owner == nullptr) { + next_lock_owner = thread; + next_lock_owner->SetLockOwner(nullptr); + } else { + next_lock_owner->AddWaiterImpl(thread); + } + num_waiters++; + } else { + it++; + } } - // 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)); + // Do priority updates, if we have a next owner. + if (next_lock_owner) { + RestorePriority(kernel, this); + RestorePriority(kernel, next_lock_owner); + } - // Recursively update the priority of the thread that depends on the priority of this one. - lock_owner->UpdatePriority(); + // Return output. + *out_num_waiters = num_waiters; + return next_lock_owner; } ResultCode Thread::SetActivity(ThreadActivity value) { @@ -372,18 +411,6 @@ void Thread::RemoveSchedulingFlag(ThreadSchedFlags flag) { KScheduler::OnThreadStateChanged(kernel, this, old_state); } -void Thread::SetSchedulingStatus(ThreadState new_status) { - const auto old_state = GetRawState(); - thread_state = (thread_state & ThreadState::HighMask) | 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) { diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h index 06dd2ef2d..820ea524f 100644 --- a/src/core/hle/kernel/thread.h +++ b/src/core/hle/kernel/thread.h @@ -6,16 +6,21 @@ #include <array> #include <functional> +#include <span> #include <string> #include <utility> #include <vector> +#include <boost/intrusive/list.hpp> + #include "common/common_types.h" +#include "common/intrusive_red_black_tree.h" #include "common/spin_lock.h" #include "core/arm/arm_interface.h" #include "core/hle/kernel/k_affinity_mask.h" #include "core/hle/kernel/k_synchronization_object.h" #include "core/hle/kernel/object.h" +#include "core/hle/kernel/svc_common.h" #include "core/hle/result.h" namespace Common { @@ -89,8 +94,6 @@ enum class ThreadState : u16 { InitSuspended = (1 << (4 + SuspendShift)), SuspendFlagMask = ((1 << 5) - 1) << SuspendShift, - - HighMask = 0xfff0, }; DECLARE_ENUM_FLAG_OPERATORS(ThreadState); @@ -111,7 +114,10 @@ enum class ThreadSchedFlags : u32 { KernelInitPauseFlag = 1 << 8, }; -class Thread final : public KSynchronizationObject { +class Thread final : public KSynchronizationObject, public boost::intrusive::list_base_hook<> { + friend class KScheduler; + friend class Process; + public: explicit Thread(KernelCore& kernel); ~Thread() override; @@ -180,49 +186,46 @@ public: * Gets the thread's current priority * @return The current thread's priority */ - u32 GetPriority() const { + [[nodiscard]] s32 GetPriority() const { return current_priority; } /** + * Sets the thread's current priority. + * @param priority The new priority. + */ + void SetPriority(s32 priority) { + current_priority = priority; + } + + /** * Gets the thread's nominal priority. * @return The current thread's nominal priority. */ - u32 GetNominalPriority() const { - return nominal_priority; + [[nodiscard]] s32 GetBasePriority() const { + return base_priority; } /** - * Sets the thread's current priority - * @param priority The new priority + * Sets the thread's nominal priority. + * @param priority The new priority. */ - void SetPriority(u32 priority); - - /// Adds a thread to the list of threads that are waiting for a lock held by this thread. - void AddMutexWaiter(std::shared_ptr<Thread> thread); - - /// Removes a thread from the list of threads that are waiting for a lock held by this thread. - void RemoveMutexWaiter(std::shared_ptr<Thread> thread); - - /// Recalculates the current priority taking into account priority inheritance. - void UpdatePriority(); + void SetBasePriority(u32 priority); /// Changes the core that the thread is running or scheduled to run on. - ResultCode SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask); + [[nodiscard]] ResultCode SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask); /** * Gets the thread's thread ID * @return The thread's ID */ - u64 GetThreadID() const { + [[nodiscard]] u64 GetThreadID() const { return thread_id; } /// Resumes a thread from waiting void Wakeup(); - void OnWakeUp(); - ResultCode Start(); virtual bool IsSignaled() const override; @@ -242,7 +245,7 @@ public: } ResultCode GetWaitResult(KSynchronizationObject** out) const { - *out = this->signaling_object; + *out = signaling_object; return signaling_result; } @@ -328,18 +331,14 @@ public: return thread_state; } - void SetState(ThreadState new_state); - - void SetWaitingCondVar(bool value) { - is_waiting_on_condvar = value; - } + void SetState(ThreadState state); s64 GetLastScheduledTick() const { - return this->last_scheduled_tick; + return last_scheduled_tick; } void SetLastScheduledTick(s64 tick) { - this->last_scheduled_tick = tick; + last_scheduled_tick = tick; } u64 GetTotalCPUTimeTicks() const { @@ -379,55 +378,13 @@ public: } Thread* GetLockOwner() const { - return lock_owner.get(); - } - - void SetLockOwner(std::shared_ptr<Thread> owner) { - lock_owner = std::move(owner); - } - - VAddr GetCondVarWaitAddress() const { - return condvar_wait_address; - } - - void SetCondVarWaitAddress(VAddr address) { - condvar_wait_address = address; - } - - VAddr GetMutexWaitAddress() const { - return mutex_wait_address; + return lock_owner; } - void SetMutexWaitAddress(VAddr address) { - mutex_wait_address = address; + void SetLockOwner(Thread* owner) { + lock_owner = owner; } - Handle GetWaitHandle() const { - return wait_handle; - } - - void SetWaitHandle(Handle handle) { - wait_handle = handle; - } - - VAddr GetArbiterWaitAddress() const { - return arb_wait_address; - } - - void SetArbiterWaitAddress(VAddr address) { - arb_wait_address = address; - } - - void SetHLETimeEvent(Handle time_event) { - hle_time_event = time_event; - } - - Handle GetHLETimeEvent() const { - return hle_time_event; - } - - bool InvokeHLECallback(std::shared_ptr<Thread> thread); - u32 GetIdealCore() const { return ideal_core; } @@ -442,11 +399,11 @@ public: ResultCode Sleep(s64 nanoseconds); s64 GetYieldScheduleCount() const { - return this->schedule_count; + return schedule_count; } void SetYieldScheduleCount(s64 count) { - this->schedule_count = count; + schedule_count = count; } bool IsRunning() const { @@ -469,14 +426,6 @@ public: return global_handle; } - bool IsWaitingForArbitration() const { - return waiting_for_arbitration; - } - - void WaitForArbitration(bool set) { - waiting_for_arbitration = set; - } - bool IsCancellable() const { return is_cancellable; } @@ -490,7 +439,7 @@ public: } bool IsTerminationRequested() const { - return will_be_terminated || GetState() == ThreadState::Terminated; + return will_be_terminated || GetRawState() == ThreadState::Terminated; } bool IsPaused() const { @@ -522,21 +471,21 @@ public: constexpr QueueEntry() = default; constexpr void Initialize() { - this->prev = nullptr; - this->next = nullptr; + prev = nullptr; + next = nullptr; } constexpr Thread* GetPrev() const { - return this->prev; + return prev; } constexpr Thread* GetNext() const { - return this->next; + return next; } constexpr void SetPrev(Thread* thread) { - this->prev = thread; + prev = thread; } constexpr void SetNext(Thread* thread) { - this->next = thread; + next = thread; } private: @@ -545,11 +494,11 @@ public: }; QueueEntry& GetPriorityQueueEntry(s32 core) { - return this->per_core_priority_queue_entry[core]; + return per_core_priority_queue_entry[core]; } const QueueEntry& GetPriorityQueueEntry(s32 core) const { - return this->per_core_priority_queue_entry[core]; + return per_core_priority_queue_entry[core]; } s32 GetDisableDispatchCount() const { @@ -566,27 +515,155 @@ public: disable_count--; } - void SetWaitObjectsForDebugging(KSynchronizationObject** objects, s32 num_objects) { + void SetWaitObjectsForDebugging(const std::span<KSynchronizationObject*>& objects) { wait_objects_for_debugging.clear(); - wait_objects_for_debugging.reserve(num_objects); - for (auto i = 0; i < num_objects; ++i) { - wait_objects_for_debugging.emplace_back(objects[i]); + wait_objects_for_debugging.reserve(objects.size()); + for (const auto& object : objects) { + wait_objects_for_debugging.emplace_back(object); } } - const std::vector<KSynchronizationObject*>& GetWaitObjectsForDebugging() const { + [[nodiscard]] const std::vector<KSynchronizationObject*>& GetWaitObjectsForDebugging() const { return wait_objects_for_debugging; } + void SetMutexWaitAddressForDebugging(VAddr address) { + mutex_wait_address_for_debugging = address; + } + + [[nodiscard]] VAddr GetMutexWaitAddressForDebugging() const { + return mutex_wait_address_for_debugging; + } + + void AddWaiter(Thread* thread); + + void RemoveWaiter(Thread* thread); + + [[nodiscard]] Thread* RemoveWaiterByKey(s32* out_num_waiters, VAddr key); + + [[nodiscard]] VAddr GetAddressKey() const { + return address_key; + } + + [[nodiscard]] u32 GetAddressKeyValue() const { + return address_key_value; + } + + void SetAddressKey(VAddr key) { + address_key = key; + } + + void SetAddressKey(VAddr key, u32 val) { + address_key = key; + address_key_value = val; + } + private: - friend class GlobalSchedulerContext; - friend class KScheduler; - friend class Process; + static constexpr size_t PriorityInheritanceCountMax = 10; + union SyncObjectBuffer { + std::array<KSynchronizationObject*, Svc::ArgumentHandleCountMax> sync_objects{}; + std::array<Handle, + Svc::ArgumentHandleCountMax*(sizeof(KSynchronizationObject*) / sizeof(Handle))> + handles; + constexpr SyncObjectBuffer() {} + }; + static_assert(sizeof(SyncObjectBuffer::sync_objects) == sizeof(SyncObjectBuffer::handles)); + + struct ConditionVariableComparator { + struct LightCompareType { + u64 cv_key{}; + s32 priority{}; + + [[nodiscard]] constexpr u64 GetConditionVariableKey() const { + return cv_key; + } + + [[nodiscard]] constexpr s32 GetPriority() const { + return priority; + } + }; + + template <typename T> + requires( + std::same_as<T, Thread> || + std::same_as<T, LightCompareType>) static constexpr int Compare(const T& lhs, + const Thread& rhs) { + const uintptr_t l_key = lhs.GetConditionVariableKey(); + const uintptr_t r_key = rhs.GetConditionVariableKey(); + + if (l_key < r_key) { + // Sort first by key + return -1; + } else if (l_key == r_key && lhs.GetPriority() < rhs.GetPriority()) { + // And then by priority. + return -1; + } else { + return 1; + } + } + }; + + Common::IntrusiveRedBlackTreeNode condvar_arbiter_tree_node{}; + + using ConditionVariableThreadTreeTraits = + Common::IntrusiveRedBlackTreeMemberTraitsDeferredAssert<&Thread::condvar_arbiter_tree_node>; + using ConditionVariableThreadTree = + ConditionVariableThreadTreeTraits::TreeType<ConditionVariableComparator>; + +public: + using ConditionVariableThreadTreeType = ConditionVariableThreadTree; - void SetSchedulingStatus(ThreadState new_status); + [[nodiscard]] uintptr_t GetConditionVariableKey() const { + return condvar_key; + } + + [[nodiscard]] uintptr_t GetAddressArbiterKey() const { + return condvar_key; + } + + void SetConditionVariable(ConditionVariableThreadTree* tree, VAddr address, uintptr_t cv_key, + u32 value) { + condvar_tree = tree; + condvar_key = cv_key; + address_key = address; + address_key_value = value; + } + + void ClearConditionVariable() { + condvar_tree = nullptr; + } + + [[nodiscard]] bool IsWaitingForConditionVariable() const { + return condvar_tree != nullptr; + } + + void SetAddressArbiter(ConditionVariableThreadTree* tree, uintptr_t address) { + condvar_tree = tree; + condvar_key = address; + } + + void ClearAddressArbiter() { + condvar_tree = nullptr; + } + + [[nodiscard]] bool IsWaitingForAddressArbiter() const { + return condvar_tree != nullptr; + } + + [[nodiscard]] ConditionVariableThreadTree* GetConditionVariableTree() const { + return condvar_tree; + } + + [[nodiscard]] bool HasWaiters() const { + return !waiter_list.empty(); + } + +private: void AddSchedulingFlag(ThreadSchedFlags flag); void RemoveSchedulingFlag(ThreadSchedFlags flag); - void SetCurrentPriority(u32 new_priority); + void AddWaiterImpl(Thread* thread); + void RemoveWaiterImpl(Thread* thread); + static void RestorePriority(KernelCore& kernel, Thread* thread); Common::SpinLock context_guard{}; ThreadContext32 context_32{}; @@ -606,11 +683,11 @@ private: /// 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; + s32 base_priority{}; /// Current thread priority. This may change over the course of the /// thread's lifetime in order to facilitate priority inheritance. - u32 current_priority = 0; + s32 current_priority{}; u64 total_cpu_time_ticks = 0; ///< Total CPU running ticks. s64 schedule_count{}; @@ -628,6 +705,9 @@ private: /// passed to WaitSynchronization. This is used for debugging only. std::vector<KSynchronizationObject*> wait_objects_for_debugging; + /// The current mutex wait address. This is used for debugging only. + VAddr mutex_wait_address_for_debugging{}; + KSynchronizationObject* signaling_object; ResultCode signaling_result{RESULT_SUCCESS}; @@ -635,25 +715,11 @@ private: MutexWaitingThreads wait_mutex_threads; /// Thread that owns the lock that this thread is waiting for. - std::shared_ptr<Thread> lock_owner; - - /// If waiting on a ConditionVariable, this is the ConditionVariable address - VAddr condvar_wait_address = 0; - bool is_waiting_on_condvar{}; - /// 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; - - /// If waiting for an AddressArbiter, this is the address being waited on. - VAddr arb_wait_address{0}; - bool waiting_for_arbitration{}; + Thread* lock_owner{}; /// Handle used as userdata to reference this object when inserting into the CoreTiming queue. Handle global_handle = 0; - Handle hle_time_event; - KScheduler* scheduler = nullptr; std::array<QueueEntry, Core::Hardware::NUM_CPU_CORES> per_core_priority_queue_entry{}; @@ -679,6 +745,16 @@ private: bool signaled{}; + ConditionVariableThreadTree* condvar_tree{}; + uintptr_t condvar_key{}; + VAddr address_key{}; + u32 address_key_value{}; + s32 num_kernel_waiters{}; + + using WaiterList = boost::intrusive::list<Thread>; + WaiterList waiter_list{}; + WaiterList pinned_waiter_list{}; + std::string name; }; diff --git a/src/core/hle/kernel/time_manager.cpp b/src/core/hle/kernel/time_manager.cpp index b58a76dba..832edd629 100644 --- a/src/core/hle/kernel/time_manager.cpp +++ b/src/core/hle/kernel/time_manager.cpp @@ -18,12 +18,10 @@ TimeManager::TimeManager(Core::System& system_) : system{system_} { time_manager_event_type = Core::Timing::CreateEvent( "Kernel::TimeManagerCallback", [this](std::uintptr_t thread_handle, std::chrono::nanoseconds) { - const KScopedSchedulerLock lock(system.Kernel()); - const auto proper_handle = static_cast<Handle>(thread_handle); - std::shared_ptr<Thread> thread; { std::lock_guard lock{mutex}; + const auto proper_handle = static_cast<Handle>(thread_handle); if (cancelled_events[proper_handle]) { return; } @@ -32,7 +30,7 @@ TimeManager::TimeManager(Core::System& system_) : system{system_} { if (thread) { // Thread can be null if process has exited - thread->OnWakeUp(); + thread->Wakeup(); } }); } |