kernel: refactor priority inheritance to represent locks as C++ objects
This commit is contained in:
Liam
parent
96bd7ea42d
commit
c4ba088a5d
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@ -33,6 +33,9 @@
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namespace Kernel::Init {
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// For macro convenience.
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using KThreadLockInfo = KThread::LockWithPriorityInheritanceInfo;
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#define SLAB_COUNT(CLASS) kernel.SlabResourceCounts().num_##CLASS
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#define FOREACH_SLAB_TYPE(HANDLER, ...) \
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@ -54,7 +57,8 @@ namespace Kernel::Init {
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HANDLER(KResourceLimit, (SLAB_COUNT(KResourceLimit)), ##__VA_ARGS__) \
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HANDLER(KEventInfo, (SLAB_COUNT(KThread) + SLAB_COUNT(KDebug)), ##__VA_ARGS__) \
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HANDLER(KDebug, (SLAB_COUNT(KDebug)), ##__VA_ARGS__) \
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HANDLER(KSecureSystemResource, (SLAB_COUNT(KProcess)), ##__VA_ARGS__)
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HANDLER(KSecureSystemResource, (SLAB_COUNT(KProcess)), ##__VA_ARGS__) \
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HANDLER(KThreadLockInfo, (SLAB_COUNT(KThread)), ##__VA_ARGS__)
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namespace {
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@ -111,15 +111,15 @@ Result KConditionVariable::SignalToAddress(VAddr addr) {
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KScopedSchedulerLock sl(kernel);
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// Remove waiter thread.
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s32 num_waiters{};
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bool has_waiters{};
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KThread* const next_owner_thread =
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owner_thread->RemoveWaiterByKey(std::addressof(num_waiters), addr);
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owner_thread->RemoveWaiterByKey(std::addressof(has_waiters), addr);
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// Determine the next tag.
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u32 next_value{};
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if (next_owner_thread != nullptr) {
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next_value = next_owner_thread->GetAddressKeyValue();
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if (num_waiters > 1) {
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if (has_waiters) {
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next_value |= Svc::HandleWaitMask;
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}
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}
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@ -247,9 +247,11 @@ void KConditionVariable::Signal(u64 cv_key, s32 count) {
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(it->GetConditionVariableKey() == cv_key)) {
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KThread* target_thread = std::addressof(*it);
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this->SignalImpl(target_thread);
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it = thread_tree.erase(it);
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target_thread->ClearConditionVariable();
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this->SignalImpl(target_thread);
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++num_waiters;
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}
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@ -279,16 +281,16 @@ Result KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout) {
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// Update the value and process for the next owner.
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{
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// Remove waiter thread.
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s32 num_waiters{};
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bool has_waiters{};
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KThread* next_owner_thread =
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cur_thread->RemoveWaiterByKey(std::addressof(num_waiters), addr);
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cur_thread->RemoveWaiterByKey(std::addressof(has_waiters), addr);
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// Update for the next owner thread.
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u32 next_value{};
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if (next_owner_thread != nullptr) {
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// Get the next tag value.
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next_value = next_owner_thread->GetAddressKeyValue();
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if (num_waiters > 1) {
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if (has_waiters) {
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next_value |= Svc::HandleWaitMask;
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}
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@ -90,15 +90,15 @@ void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {
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KScopedSchedulerLock sl(kernel);
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// Get the next owner.
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s32 num_waiters;
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bool has_waiters;
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KThread* next_owner = owner_thread->RemoveWaiterByKey(
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std::addressof(num_waiters), reinterpret_cast<uintptr_t>(std::addressof(tag)));
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std::addressof(has_waiters), reinterpret_cast<uintptr_t>(std::addressof(tag)));
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// Pass the lock to the next owner.
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uintptr_t next_tag = 0;
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if (next_owner != nullptr) {
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next_tag =
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reinterpret_cast<uintptr_t>(next_owner) | static_cast<uintptr_t>(num_waiters > 1);
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reinterpret_cast<uintptr_t>(next_owner) | static_cast<uintptr_t>(has_waiters);
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next_owner->EndWait(ResultSuccess);
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@ -156,9 +156,9 @@ bool KProcess::ReleaseUserException(KThread* thread) {
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exception_thread = nullptr;
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// Remove waiter thread.
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s32 num_waiters{};
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bool has_waiters{};
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if (KThread* next = thread->RemoveWaiterByKey(
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std::addressof(num_waiters),
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std::addressof(has_waiters),
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reinterpret_cast<uintptr_t>(std::addressof(exception_thread)));
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next != nullptr) {
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next->EndWait(ResultSuccess);
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@ -191,7 +191,7 @@ Result KThread::Initialize(KThreadFunction func, uintptr_t arg, VAddr user_stack
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light_ipc_data = nullptr;
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// We're not waiting for a lock, and we haven't disabled migration.
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lock_owner = nullptr;
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waiting_lock_info = nullptr;
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num_core_migration_disables = 0;
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// We have no waiters, but we do have an entrypoint.
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@ -341,25 +341,39 @@ void KThread::Finalize() {
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// Release any waiters.
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{
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ASSERT(lock_owner == nullptr);
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ASSERT(waiting_lock_info == nullptr);
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KScopedSchedulerLock sl{kernel};
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auto it = waiter_list.begin();
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while (it != waiter_list.end()) {
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// Get the thread.
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KThread* const waiter = std::addressof(*it);
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// Check that we have no kernel waiters.
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ASSERT(num_kernel_waiters == 0);
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// The thread shouldn't be a kernel waiter.
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ASSERT(!waiter->GetAddressKeyIsKernel());
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auto it = held_lock_info_list.begin();
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while (it != held_lock_info_list.end()) {
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// Get the lock info.
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auto* const lock_info = std::addressof(*it);
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// Clear the lock owner.
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waiter->SetLockOwner(nullptr);
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// The lock shouldn't have a kernel waiter.
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ASSERT(!lock_info->GetIsKernelAddressKey());
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// Erase the waiter from our list.
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it = waiter_list.erase(it);
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// Remove all waiters.
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while (lock_info->GetWaiterCount() != 0) {
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// Get the front waiter.
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KThread* const waiter = lock_info->GetHighestPriorityWaiter();
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// Cancel the thread's wait.
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waiter->CancelWait(ResultInvalidState, true);
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// Remove it from the lock.
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if (lock_info->RemoveWaiter(waiter)) {
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ASSERT(lock_info->GetWaiterCount() == 0);
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}
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// Cancel the thread's wait.
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waiter->CancelWait(ResultInvalidState, true);
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}
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// Remove the held lock from our list.
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it = held_lock_info_list.erase(it);
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// Free the lock info.
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LockWithPriorityInheritanceInfo::Free(kernel, lock_info);
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}
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}
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@ -708,6 +722,24 @@ void KThread::SetBasePriority(s32 value) {
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RestorePriority(kernel, this);
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}
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KThread* KThread::GetLockOwner() const {
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return waiting_lock_info != nullptr ? waiting_lock_info->GetOwner() : nullptr;
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}
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void KThread::IncreaseBasePriority(s32 priority_) {
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ASSERT(Svc::HighestThreadPriority <= priority_ && priority_ <= Svc::LowestThreadPriority);
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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ASSERT(!this->GetStackParameters().is_pinned);
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// Set our base priority.
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if (base_priority > priority_) {
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base_priority = priority_;
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// Perform a priority restoration.
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RestorePriority(kernel, this);
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}
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}
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void KThread::RequestSuspend(SuspendType type) {
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KScopedSchedulerLock sl{kernel};
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@ -891,51 +923,87 @@ Result KThread::GetThreadContext3(std::vector<u8>& out) {
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R_SUCCEED();
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}
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void KThread::AddWaiterImpl(KThread* thread) {
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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void KThread::AddHeldLock(LockWithPriorityInheritanceInfo* lock_info) {
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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// Find the right spot to insert the waiter.
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auto it = waiter_list.begin();
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while (it != waiter_list.end()) {
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if (it->GetPriority() > thread->GetPriority()) {
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break;
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// Set ourselves as the lock's owner.
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lock_info->SetOwner(this);
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// Add the lock to our held list.
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held_lock_info_list.push_front(*lock_info);
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}
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KThread::LockWithPriorityInheritanceInfo* KThread::FindHeldLock(VAddr address_key_) {
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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// Try to find an existing held lock.
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for (auto& held_lock : held_lock_info_list) {
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if (held_lock.GetAddressKey() == address_key_) {
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return std::addressof(held_lock);
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}
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it++;
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}
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return nullptr;
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}
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void KThread::AddWaiterImpl(KThread* thread) {
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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ASSERT(thread->GetConditionVariableTree() == nullptr);
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// Get the thread's address key.
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const auto address_key_ = thread->GetAddressKey();
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const auto is_kernel_address_key_ = thread->GetIsKernelAddressKey();
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// Keep track of how many kernel waiters we have.
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if (thread->GetAddressKeyIsKernel()) {
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if (is_kernel_address_key_) {
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ASSERT((num_kernel_waiters++) >= 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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// Insert the waiter.
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waiter_list.insert(it, *thread);
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thread->SetLockOwner(this);
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// Get the relevant lock info.
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auto* lock_info = this->FindHeldLock(address_key_);
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if (lock_info == nullptr) {
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// Create a new lock for the address key.
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lock_info =
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LockWithPriorityInheritanceInfo::Create(kernel, address_key_, is_kernel_address_key_);
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// Add the new lock to our list.
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this->AddHeldLock(lock_info);
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}
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// Add the thread as waiter to the lock info.
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lock_info->AddWaiter(thread);
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}
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void KThread::RemoveWaiterImpl(KThread* thread) {
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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// Keep track of how many kernel waiters we have.
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if (thread->GetAddressKeyIsKernel()) {
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if (thread->GetIsKernelAddressKey()) {
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ASSERT((num_kernel_waiters--) > 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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// Get the info for the lock the thread is waiting on.
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auto* lock_info = thread->GetWaitingLockInfo();
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ASSERT(lock_info->GetOwner() == this);
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// Remove the waiter.
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waiter_list.erase(waiter_list.iterator_to(*thread));
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thread->SetLockOwner(nullptr);
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if (lock_info->RemoveWaiter(thread)) {
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held_lock_info_list.erase(held_lock_info_list.iterator_to(*lock_info));
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LockWithPriorityInheritanceInfo::Free(kernel, lock_info);
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}
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}
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void KThread::RestorePriority(KernelCore& kernel_ctx, KThread* thread) {
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ASSERT(kernel_ctx.GlobalSchedulerContext().IsLocked());
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void KThread::RestorePriority(KernelCore& kernel, KThread* thread) {
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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while (true) {
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while (thread != nullptr) {
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// We want to inherit priority where possible.
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s32 new_priority = thread->GetBasePriority();
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if (thread->HasWaiters()) {
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new_priority = std::min(new_priority, thread->waiter_list.front().GetPriority());
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for (const auto& held_lock : thread->held_lock_info_list) {
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new_priority =
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std::min(new_priority, held_lock.GetHighestPriorityWaiter()->GetPriority());
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}
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// If the priority we would inherit is not different from ours, don't do anything.
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@ -943,9 +1011,18 @@ void KThread::RestorePriority(KernelCore& kernel_ctx, KThread* thread) {
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return;
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}
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// Get the owner of whatever lock this thread is waiting on.
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KThread* const lock_owner = thread->GetLockOwner();
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// If the thread is waiting on some lock, remove it as a waiter to prevent violating red
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// black tree invariants.
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if (lock_owner != nullptr) {
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lock_owner->RemoveWaiterImpl(thread);
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}
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// Ensure we don't violate condition variable red black tree invariants.
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if (auto* cv_tree = thread->GetConditionVariableTree(); cv_tree != nullptr) {
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BeforeUpdatePriority(kernel_ctx, cv_tree, thread);
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BeforeUpdatePriority(kernel, cv_tree, thread);
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}
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// Change the priority.
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@ -954,73 +1031,99 @@ void KThread::RestorePriority(KernelCore& kernel_ctx, KThread* thread) {
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// Restore the condition variable, if relevant.
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if (auto* cv_tree = thread->GetConditionVariableTree(); cv_tree != nullptr) {
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AfterUpdatePriority(kernel_ctx, cv_tree, thread);
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AfterUpdatePriority(kernel, cv_tree, thread);
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}
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// If we removed the thread from some lock's waiting list, add it back.
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if (lock_owner != nullptr) {
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lock_owner->AddWaiterImpl(thread);
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}
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// Update the scheduler.
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KScheduler::OnThreadPriorityChanged(kernel_ctx, thread, old_priority);
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KScheduler::OnThreadPriorityChanged(kernel, thread, old_priority);
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// Keep the lock owner up to date.
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KThread* lock_owner = thread->GetLockOwner();
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if (lock_owner == nullptr) {
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return;
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}
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// Update the thread in the lock owner's sorted list, and continue inheriting.
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lock_owner->RemoveWaiterImpl(thread);
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lock_owner->AddWaiterImpl(thread);
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// Continue inheriting priority.
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thread = lock_owner;
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}
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}
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void KThread::AddWaiter(KThread* thread) {
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AddWaiterImpl(thread);
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RestorePriority(kernel, this);
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this->AddWaiterImpl(thread);
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// If the thread has a higher priority than us, we should inherit.
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if (thread->GetPriority() < this->GetPriority()) {
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RestorePriority(kernel, this);
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}
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}
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void KThread::RemoveWaiter(KThread* thread) {
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RemoveWaiterImpl(thread);
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RestorePriority(kernel, this);
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this->RemoveWaiterImpl(thread);
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// If our priority is the same as the thread's (and we've inherited), we may need to restore to
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// lower priority.
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if (this->GetPriority() == thread->GetPriority() &&
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this->GetPriority() < this->GetBasePriority()) {
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RestorePriority(kernel, this);
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}
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}
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KThread* KThread::RemoveWaiterByKey(s32* out_num_waiters, VAddr key) {
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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KThread* KThread::RemoveWaiterByKey(bool* out_has_waiters, VAddr key) {
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ASSERT(KScheduler::IsSchedulerLockedByCurrentThread(kernel));
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s32 num_waiters{};
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KThread* next_lock_owner{};
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auto it = waiter_list.begin();
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while (it != waiter_list.end()) {
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if (it->GetAddressKey() == key) {
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KThread* thread = std::addressof(*it);
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// Get the relevant lock info.
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auto* lock_info = this->FindHeldLock(key);
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if (lock_info == nullptr) {
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*out_has_waiters = false;
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return nullptr;
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}
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// Keep track of how many kernel waiters we have.
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if (thread->GetAddressKeyIsKernel()) {
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ASSERT((num_kernel_waiters--) > 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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it = waiter_list.erase(it);
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// Remove the lock info from our held list.
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held_lock_info_list.erase(held_lock_info_list.iterator_to(*lock_info));
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// Update the next lock owner.
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if (next_lock_owner == nullptr) {
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next_lock_owner = thread;
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next_lock_owner->SetLockOwner(nullptr);
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} else {
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next_lock_owner->AddWaiterImpl(thread);
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}
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num_waiters++;
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} else {
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it++;
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// Keep track of how many kernel waiters we have.
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if (lock_info->GetIsKernelAddressKey()) {
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num_kernel_waiters -= lock_info->GetWaiterCount();
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ASSERT(num_kernel_waiters >= 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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ASSERT(lock_info->GetWaiterCount() > 0);
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// Remove the highest priority waiter from the lock to be the next owner.
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KThread* next_lock_owner = lock_info->GetHighestPriorityWaiter();
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if (lock_info->RemoveWaiter(next_lock_owner)) {
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// The new owner was the only waiter.
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*out_has_waiters = false;
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// Free the lock info, since it has no waiters.
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LockWithPriorityInheritanceInfo::Free(kernel, lock_info);
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} else {
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// There are additional waiters on the lock.
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*out_has_waiters = true;
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// Add the lock to the new owner's held list.
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next_lock_owner->AddHeldLock(lock_info);
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// Keep track of any kernel waiters for the new owner.
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if (lock_info->GetIsKernelAddressKey()) {
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next_lock_owner->num_kernel_waiters += lock_info->GetWaiterCount();
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ASSERT(next_lock_owner->num_kernel_waiters > 0);
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// NOTE: No need to set scheduler update needed, because we will have already done so
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// when removing earlier.
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}
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}
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// Do priority updates, if we have a next owner.
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if (next_lock_owner) {
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// If our priority is the same as the next owner's (and we've inherited), we may need to restore
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// to lower priority.
|
||||
if (this->GetPriority() == next_lock_owner->GetPriority() &&
|
||||
this->GetPriority() < this->GetBasePriority()) {
|
||||
RestorePriority(kernel, this);
|
||||
RestorePriority(kernel, next_lock_owner);
|
||||
// NOTE: No need to restore priority on the next lock owner, because it was already the
|
||||
// highest priority waiter on the lock.
|
||||
}
|
||||
|
||||
// Return output.
|
||||
*out_num_waiters = num_waiters;
|
||||
// Return the next lock owner.
|
||||
return next_lock_owner;
|
||||
}
|
||||
|
||||
|
|
@ -1137,9 +1240,7 @@ ThreadState KThread::RequestTerminate() {
|
|||
}
|
||||
|
||||
// Change the thread's priority to be higher than any system thread's.
|
||||
if (this->GetBasePriority() >= Svc::SystemThreadPriorityHighest) {
|
||||
this->SetBasePriority(TerminatingThreadPriority);
|
||||
}
|
||||
this->IncreaseBasePriority(TerminatingThreadPriority);
|
||||
|
||||
// If the thread is runnable, send a termination interrupt to other cores.
|
||||
if (this->GetState() == ThreadState::Runnable) {
|
||||
|
|
|
|||
|
|
@ -339,13 +339,7 @@ public:
|
|||
void SetInterruptFlag();
|
||||
void ClearInterruptFlag();
|
||||
|
||||
[[nodiscard]] KThread* GetLockOwner() const {
|
||||
return lock_owner;
|
||||
}
|
||||
|
||||
void SetLockOwner(KThread* owner) {
|
||||
lock_owner = owner;
|
||||
}
|
||||
KThread* GetLockOwner() const;
|
||||
|
||||
[[nodiscard]] const KAffinityMask& GetAffinityMask() const {
|
||||
return physical_affinity_mask;
|
||||
|
|
@ -601,7 +595,7 @@ public:
|
|||
|
||||
[[nodiscard]] Result GetThreadContext3(std::vector<u8>& out);
|
||||
|
||||
[[nodiscard]] KThread* RemoveWaiterByKey(s32* out_num_waiters, VAddr key);
|
||||
[[nodiscard]] KThread* RemoveWaiterByKey(bool* out_has_waiters, VAddr key);
|
||||
|
||||
[[nodiscard]] VAddr GetAddressKey() const {
|
||||
return address_key;
|
||||
|
|
@ -611,8 +605,8 @@ public:
|
|||
return address_key_value;
|
||||
}
|
||||
|
||||
[[nodiscard]] bool GetAddressKeyIsKernel() const {
|
||||
return address_key_is_kernel;
|
||||
[[nodiscard]] bool GetIsKernelAddressKey() const {
|
||||
return is_kernel_address_key;
|
||||
}
|
||||
|
||||
//! NB: intentional deviation from official kernel.
|
||||
|
|
@ -621,20 +615,17 @@ public:
|
|||
// to cope with arbitrary host pointers making their way
|
||||
// into things.
|
||||
|
||||
void SetUserAddressKey(VAddr key) {
|
||||
address_key = key;
|
||||
address_key_is_kernel = false;
|
||||
}
|
||||
|
||||
void SetUserAddressKey(VAddr key, u32 val) {
|
||||
ASSERT(waiting_lock_info == nullptr);
|
||||
address_key = key;
|
||||
address_key_value = val;
|
||||
address_key_is_kernel = false;
|
||||
is_kernel_address_key = false;
|
||||
}
|
||||
|
||||
void SetKernelAddressKey(VAddr key) {
|
||||
ASSERT(waiting_lock_info == nullptr);
|
||||
address_key = key;
|
||||
address_key_is_kernel = true;
|
||||
is_kernel_address_key = true;
|
||||
}
|
||||
|
||||
void ClearWaitQueue() {
|
||||
|
|
@ -646,10 +637,6 @@ public:
|
|||
void EndWait(Result wait_result_);
|
||||
void CancelWait(Result wait_result_, bool cancel_timer_task);
|
||||
|
||||
[[nodiscard]] bool HasWaiters() const {
|
||||
return !waiter_list.empty();
|
||||
}
|
||||
|
||||
[[nodiscard]] s32 GetNumKernelWaiters() const {
|
||||
return num_kernel_waiters;
|
||||
}
|
||||
|
|
@ -722,13 +709,14 @@ private:
|
|||
};
|
||||
|
||||
void AddWaiterImpl(KThread* thread);
|
||||
|
||||
void RemoveWaiterImpl(KThread* thread);
|
||||
static void RestorePriority(KernelCore& kernel, KThread* thread);
|
||||
|
||||
void StartTermination();
|
||||
|
||||
void FinishTermination();
|
||||
|
||||
void IncreaseBasePriority(s32 priority);
|
||||
|
||||
[[nodiscard]] Result Initialize(KThreadFunction func, uintptr_t arg, VAddr user_stack_top,
|
||||
s32 prio, s32 virt_core, KProcess* owner, ThreadType type);
|
||||
|
||||
|
|
@ -737,8 +725,6 @@ private:
|
|||
s32 core, KProcess* owner, ThreadType type,
|
||||
std::function<void()>&& init_func);
|
||||
|
||||
static void RestorePriority(KernelCore& kernel_ctx, KThread* thread);
|
||||
|
||||
// For core KThread implementation
|
||||
ThreadContext32 thread_context_32{};
|
||||
ThreadContext64 thread_context_64{};
|
||||
|
|
@ -749,6 +735,127 @@ private:
|
|||
&KThread::condvar_arbiter_tree_node>;
|
||||
using ConditionVariableThreadTree =
|
||||
ConditionVariableThreadTreeTraits::TreeType<ConditionVariableComparator>;
|
||||
|
||||
private:
|
||||
struct LockWithPriorityInheritanceComparator {
|
||||
struct RedBlackKeyType {
|
||||
s32 m_priority;
|
||||
|
||||
constexpr s32 GetPriority() const {
|
||||
return m_priority;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
requires(std::same_as<T, KThread> || std::same_as<T, RedBlackKeyType>)
|
||||
static constexpr int Compare(const T& lhs, const KThread& rhs) {
|
||||
if (lhs.GetPriority() < rhs.GetPriority()) {
|
||||
// Sort by priority.
|
||||
return -1;
|
||||
} else {
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
};
|
||||
static_assert(std::same_as<Common::RedBlackKeyType<LockWithPriorityInheritanceComparator, void>,
|
||||
LockWithPriorityInheritanceComparator::RedBlackKeyType>);
|
||||
|
||||
using LockWithPriorityInheritanceThreadTreeTraits =
|
||||
Common::IntrusiveRedBlackTreeMemberTraitsDeferredAssert<
|
||||
&KThread::condvar_arbiter_tree_node>;
|
||||
using LockWithPriorityInheritanceThreadTree =
|
||||
ConditionVariableThreadTreeTraits::TreeType<LockWithPriorityInheritanceComparator>;
|
||||
|
||||
public:
|
||||
class LockWithPriorityInheritanceInfo : public KSlabAllocated<LockWithPriorityInheritanceInfo>,
|
||||
public boost::intrusive::list_base_hook<> {
|
||||
public:
|
||||
explicit LockWithPriorityInheritanceInfo(KernelCore&) {}
|
||||
|
||||
static LockWithPriorityInheritanceInfo* Create(KernelCore& kernel, VAddr address_key,
|
||||
bool is_kernel_address_key) {
|
||||
// Create a new lock info.
|
||||
auto* new_lock = LockWithPriorityInheritanceInfo::Allocate(kernel);
|
||||
ASSERT(new_lock != nullptr);
|
||||
|
||||
// Set the new lock's address key.
|
||||
new_lock->m_address_key = address_key;
|
||||
new_lock->m_is_kernel_address_key = is_kernel_address_key;
|
||||
|
||||
return new_lock;
|
||||
}
|
||||
|
||||
void SetOwner(KThread* new_owner) {
|
||||
// Set new owner.
|
||||
m_owner = new_owner;
|
||||
}
|
||||
|
||||
void AddWaiter(KThread* waiter) {
|
||||
// Insert the waiter.
|
||||
m_tree.insert(*waiter);
|
||||
m_waiter_count++;
|
||||
|
||||
waiter->SetWaitingLockInfo(this);
|
||||
}
|
||||
|
||||
[[nodiscard]] bool RemoveWaiter(KThread* waiter) {
|
||||
m_tree.erase(m_tree.iterator_to(*waiter));
|
||||
|
||||
waiter->SetWaitingLockInfo(nullptr);
|
||||
|
||||
return (--m_waiter_count) == 0;
|
||||
}
|
||||
|
||||
KThread* GetHighestPriorityWaiter() {
|
||||
return std::addressof(m_tree.front());
|
||||
}
|
||||
const KThread* GetHighestPriorityWaiter() const {
|
||||
return std::addressof(m_tree.front());
|
||||
}
|
||||
|
||||
LockWithPriorityInheritanceThreadTree& GetThreadTree() {
|
||||
return m_tree;
|
||||
}
|
||||
const LockWithPriorityInheritanceThreadTree& GetThreadTree() const {
|
||||
return m_tree;
|
||||
}
|
||||
|
||||
VAddr GetAddressKey() const {
|
||||
return m_address_key;
|
||||
}
|
||||
bool GetIsKernelAddressKey() const {
|
||||
return m_is_kernel_address_key;
|
||||
}
|
||||
KThread* GetOwner() const {
|
||||
return m_owner;
|
||||
}
|
||||
u32 GetWaiterCount() const {
|
||||
return m_waiter_count;
|
||||
}
|
||||
|
||||
private:
|
||||
LockWithPriorityInheritanceThreadTree m_tree{};
|
||||
VAddr m_address_key{};
|
||||
KThread* m_owner{};
|
||||
u32 m_waiter_count{};
|
||||
bool m_is_kernel_address_key{};
|
||||
};
|
||||
|
||||
void SetWaitingLockInfo(LockWithPriorityInheritanceInfo* lock) {
|
||||
waiting_lock_info = lock;
|
||||
}
|
||||
|
||||
LockWithPriorityInheritanceInfo* GetWaitingLockInfo() {
|
||||
return waiting_lock_info;
|
||||
}
|
||||
|
||||
void AddHeldLock(LockWithPriorityInheritanceInfo* lock_info);
|
||||
LockWithPriorityInheritanceInfo* FindHeldLock(VAddr address_key);
|
||||
|
||||
private:
|
||||
using LockWithPriorityInheritanceInfoList =
|
||||
boost::intrusive::list<LockWithPriorityInheritanceInfo>;
|
||||
|
||||
ConditionVariableThreadTree* condvar_tree{};
|
||||
u64 condvar_key{};
|
||||
u64 virtual_affinity_mask{};
|
||||
|
|
@ -765,9 +872,9 @@ private:
|
|||
s64 last_scheduled_tick{};
|
||||
std::array<QueueEntry, Core::Hardware::NUM_CPU_CORES> per_core_priority_queue_entry{};
|
||||
KThreadQueue* wait_queue{};
|
||||
WaiterList waiter_list{};
|
||||
LockWithPriorityInheritanceInfoList held_lock_info_list{};
|
||||
LockWithPriorityInheritanceInfo* waiting_lock_info{};
|
||||
WaiterList pinned_waiter_list{};
|
||||
KThread* lock_owner{};
|
||||
u32 address_key_value{};
|
||||
u32 suspend_request_flags{};
|
||||
u32 suspend_allowed_flags{};
|
||||
|
|
@ -791,7 +898,7 @@ private:
|
|||
bool debug_attached{};
|
||||
s8 priority_inheritance_count{};
|
||||
bool resource_limit_release_hint{};
|
||||
bool address_key_is_kernel{};
|
||||
bool is_kernel_address_key{};
|
||||
StackParameters stack_parameters{};
|
||||
Common::SpinLock context_guard{};
|
||||
|
||||
|
|
@ -814,6 +921,7 @@ public:
|
|||
|
||||
void SetConditionVariable(ConditionVariableThreadTree* tree, VAddr address, u64 cv_key,
|
||||
u32 value) {
|
||||
ASSERT(waiting_lock_info == nullptr);
|
||||
condvar_tree = tree;
|
||||
condvar_key = cv_key;
|
||||
address_key = address;
|
||||
|
|
@ -829,6 +937,7 @@ public:
|
|||
}
|
||||
|
||||
void SetAddressArbiter(ConditionVariableThreadTree* tree, u64 address) {
|
||||
ASSERT(waiting_lock_info == nullptr);
|
||||
condvar_tree = tree;
|
||||
condvar_key = address;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1318,4 +1318,97 @@ const Core::System& KernelCore::System() const {
|
|||
return impl->system;
|
||||
}
|
||||
|
||||
struct KernelCore::SlabHeapContainer {
|
||||
KSlabHeap<KClientSession> client_session;
|
||||
KSlabHeap<KEvent> event;
|
||||
KSlabHeap<KLinkedListNode> linked_list_node;
|
||||
KSlabHeap<KPort> port;
|
||||
KSlabHeap<KProcess> process;
|
||||
KSlabHeap<KResourceLimit> resource_limit;
|
||||
KSlabHeap<KSession> session;
|
||||
KSlabHeap<KSharedMemory> shared_memory;
|
||||
KSlabHeap<KSharedMemoryInfo> shared_memory_info;
|
||||
KSlabHeap<KThread> thread;
|
||||
KSlabHeap<KTransferMemory> transfer_memory;
|
||||
KSlabHeap<KCodeMemory> code_memory;
|
||||
KSlabHeap<KDeviceAddressSpace> device_address_space;
|
||||
KSlabHeap<KPageBuffer> page_buffer;
|
||||
KSlabHeap<KThreadLocalPage> thread_local_page;
|
||||
KSlabHeap<KObjectName> object_name;
|
||||
KSlabHeap<KSessionRequest> session_request;
|
||||
KSlabHeap<KSecureSystemResource> secure_system_resource;
|
||||
KSlabHeap<KThread::LockWithPriorityInheritanceInfo> lock_info;
|
||||
KSlabHeap<KEventInfo> event_info;
|
||||
KSlabHeap<KDebug> debug;
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
KSlabHeap<T>& KernelCore::SlabHeap() {
|
||||
if constexpr (std::is_same_v<T, KClientSession>) {
|
||||
return slab_heap_container->client_session;
|
||||
} else if constexpr (std::is_same_v<T, KEvent>) {
|
||||
return slab_heap_container->event;
|
||||
} else if constexpr (std::is_same_v<T, KLinkedListNode>) {
|
||||
return slab_heap_container->linked_list_node;
|
||||
} else if constexpr (std::is_same_v<T, KPort>) {
|
||||
return slab_heap_container->port;
|
||||
} else if constexpr (std::is_same_v<T, KProcess>) {
|
||||
return slab_heap_container->process;
|
||||
} else if constexpr (std::is_same_v<T, KResourceLimit>) {
|
||||
return slab_heap_container->resource_limit;
|
||||
} else if constexpr (std::is_same_v<T, KSession>) {
|
||||
return slab_heap_container->session;
|
||||
} else if constexpr (std::is_same_v<T, KSharedMemory>) {
|
||||
return slab_heap_container->shared_memory;
|
||||
} else if constexpr (std::is_same_v<T, KSharedMemoryInfo>) {
|
||||
return slab_heap_container->shared_memory_info;
|
||||
} else if constexpr (std::is_same_v<T, KThread>) {
|
||||
return slab_heap_container->thread;
|
||||
} else if constexpr (std::is_same_v<T, KTransferMemory>) {
|
||||
return slab_heap_container->transfer_memory;
|
||||
} else if constexpr (std::is_same_v<T, KCodeMemory>) {
|
||||
return slab_heap_container->code_memory;
|
||||
} else if constexpr (std::is_same_v<T, KDeviceAddressSpace>) {
|
||||
return slab_heap_container->device_address_space;
|
||||
} else if constexpr (std::is_same_v<T, KPageBuffer>) {
|
||||
return slab_heap_container->page_buffer;
|
||||
} else if constexpr (std::is_same_v<T, KThreadLocalPage>) {
|
||||
return slab_heap_container->thread_local_page;
|
||||
} else if constexpr (std::is_same_v<T, KObjectName>) {
|
||||
return slab_heap_container->object_name;
|
||||
} else if constexpr (std::is_same_v<T, KSessionRequest>) {
|
||||
return slab_heap_container->session_request;
|
||||
} else if constexpr (std::is_same_v<T, KSecureSystemResource>) {
|
||||
return slab_heap_container->secure_system_resource;
|
||||
} else if constexpr (std::is_same_v<T, KThread::LockWithPriorityInheritanceInfo>) {
|
||||
return slab_heap_container->lock_info;
|
||||
} else if constexpr (std::is_same_v<T, KEventInfo>) {
|
||||
return slab_heap_container->event_info;
|
||||
} else if constexpr (std::is_same_v<T, KDebug>) {
|
||||
return slab_heap_container->debug;
|
||||
}
|
||||
}
|
||||
|
||||
template KSlabHeap<KClientSession>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KEvent>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KLinkedListNode>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KPort>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KProcess>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KResourceLimit>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KSession>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KSharedMemory>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KSharedMemoryInfo>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KThread>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KTransferMemory>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KCodeMemory>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KDeviceAddressSpace>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KPageBuffer>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KThreadLocalPage>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KObjectName>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KSessionRequest>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KSecureSystemResource>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KThread::LockWithPriorityInheritanceInfo>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KEventInfo>& KernelCore::SlabHeap();
|
||||
template KSlabHeap<KDebug>& KernelCore::SlabHeap();
|
||||
|
||||
} // namespace Kernel
|
||||
|
|
|
|||
|
|
@ -305,49 +305,7 @@ public:
|
|||
|
||||
/// Gets the slab heap for the specified kernel object type.
|
||||
template <typename T>
|
||||
KSlabHeap<T>& SlabHeap() {
|
||||
if constexpr (std::is_same_v<T, KClientSession>) {
|
||||
return slab_heap_container->client_session;
|
||||
} else if constexpr (std::is_same_v<T, KEvent>) {
|
||||
return slab_heap_container->event;
|
||||
} else if constexpr (std::is_same_v<T, KLinkedListNode>) {
|
||||
return slab_heap_container->linked_list_node;
|
||||
} else if constexpr (std::is_same_v<T, KPort>) {
|
||||
return slab_heap_container->port;
|
||||
} else if constexpr (std::is_same_v<T, KProcess>) {
|
||||
return slab_heap_container->process;
|
||||
} else if constexpr (std::is_same_v<T, KResourceLimit>) {
|
||||
return slab_heap_container->resource_limit;
|
||||
} else if constexpr (std::is_same_v<T, KSession>) {
|
||||
return slab_heap_container->session;
|
||||
} else if constexpr (std::is_same_v<T, KSharedMemory>) {
|
||||
return slab_heap_container->shared_memory;
|
||||
} else if constexpr (std::is_same_v<T, KSharedMemoryInfo>) {
|
||||
return slab_heap_container->shared_memory_info;
|
||||
} else if constexpr (std::is_same_v<T, KThread>) {
|
||||
return slab_heap_container->thread;
|
||||
} else if constexpr (std::is_same_v<T, KTransferMemory>) {
|
||||
return slab_heap_container->transfer_memory;
|
||||
} else if constexpr (std::is_same_v<T, KCodeMemory>) {
|
||||
return slab_heap_container->code_memory;
|
||||
} else if constexpr (std::is_same_v<T, KDeviceAddressSpace>) {
|
||||
return slab_heap_container->device_address_space;
|
||||
} else if constexpr (std::is_same_v<T, KPageBuffer>) {
|
||||
return slab_heap_container->page_buffer;
|
||||
} else if constexpr (std::is_same_v<T, KThreadLocalPage>) {
|
||||
return slab_heap_container->thread_local_page;
|
||||
} else if constexpr (std::is_same_v<T, KObjectName>) {
|
||||
return slab_heap_container->object_name;
|
||||
} else if constexpr (std::is_same_v<T, KSessionRequest>) {
|
||||
return slab_heap_container->session_request;
|
||||
} else if constexpr (std::is_same_v<T, KSecureSystemResource>) {
|
||||
return slab_heap_container->secure_system_resource;
|
||||
} else if constexpr (std::is_same_v<T, KEventInfo>) {
|
||||
return slab_heap_container->event_info;
|
||||
} else if constexpr (std::is_same_v<T, KDebug>) {
|
||||
return slab_heap_container->debug;
|
||||
}
|
||||
}
|
||||
KSlabHeap<T>& SlabHeap();
|
||||
|
||||
/// Gets the current slab resource counts.
|
||||
Init::KSlabResourceCounts& SlabResourceCounts();
|
||||
|
|
@ -393,28 +351,7 @@ private:
|
|||
|
||||
private:
|
||||
/// Helper to encapsulate all slab heaps in a single heap allocated container
|
||||
struct SlabHeapContainer {
|
||||
KSlabHeap<KClientSession> client_session;
|
||||
KSlabHeap<KEvent> event;
|
||||
KSlabHeap<KLinkedListNode> linked_list_node;
|
||||
KSlabHeap<KPort> port;
|
||||
KSlabHeap<KProcess> process;
|
||||
KSlabHeap<KResourceLimit> resource_limit;
|
||||
KSlabHeap<KSession> session;
|
||||
KSlabHeap<KSharedMemory> shared_memory;
|
||||
KSlabHeap<KSharedMemoryInfo> shared_memory_info;
|
||||
KSlabHeap<KThread> thread;
|
||||
KSlabHeap<KTransferMemory> transfer_memory;
|
||||
KSlabHeap<KCodeMemory> code_memory;
|
||||
KSlabHeap<KDeviceAddressSpace> device_address_space;
|
||||
KSlabHeap<KPageBuffer> page_buffer;
|
||||
KSlabHeap<KThreadLocalPage> thread_local_page;
|
||||
KSlabHeap<KObjectName> object_name;
|
||||
KSlabHeap<KSessionRequest> session_request;
|
||||
KSlabHeap<KSecureSystemResource> secure_system_resource;
|
||||
KSlabHeap<KEventInfo> event_info;
|
||||
KSlabHeap<KDebug> debug;
|
||||
};
|
||||
struct SlabHeapContainer;
|
||||
|
||||
std::unique_ptr<SlabHeapContainer> slab_heap_container;
|
||||
};
|
||||
|
|
|
|||
Reference in New Issue