From 67c0d714c5b6e93ddb00d0807147b5673c011ac6 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Sun, 18 Dec 2022 16:37:19 -0500
Subject: [PATCH 1/2] kernel: add KHardwareTimer
---
src/core/CMakeLists.txt | 4 +
src/core/hle/kernel/k_hardware_timer.cpp | 75 +++++++++++++++++
src/core/hle/kernel/k_hardware_timer.h | 50 +++++++++++
src/core/hle/kernel/k_hardware_timer_base.h | 92 +++++++++++++++++++++
src/core/hle/kernel/k_thread.h | 16 ++--
src/core/hle/kernel/k_timer_task.h | 40 +++++++++
6 files changed, 271 insertions(+), 6 deletions(-)
create mode 100644 src/core/hle/kernel/k_hardware_timer.cpp
create mode 100644 src/core/hle/kernel/k_hardware_timer.h
create mode 100644 src/core/hle/kernel/k_hardware_timer_base.h
create mode 100644 src/core/hle/kernel/k_timer_task.h
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index c6b5ac196..dcccd0435 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -201,6 +201,9 @@ add_library(core STATIC
hle/kernel/k_event_info.h
hle/kernel/k_handle_table.cpp
hle/kernel/k_handle_table.h
+ hle/kernel/k_hardware_timer_base.h
+ hle/kernel/k_hardware_timer.cpp
+ hle/kernel/k_hardware_timer.h
hle/kernel/k_interrupt_manager.cpp
hle/kernel/k_interrupt_manager.h
hle/kernel/k_light_condition_variable.cpp
@@ -268,6 +271,7 @@ add_library(core STATIC
hle/kernel/k_thread_local_page.h
hle/kernel/k_thread_queue.cpp
hle/kernel/k_thread_queue.h
+ hle/kernel/k_timer_task.h
hle/kernel/k_trace.h
hle/kernel/k_transfer_memory.cpp
hle/kernel/k_transfer_memory.h
diff --git a/src/core/hle/kernel/k_hardware_timer.cpp b/src/core/hle/kernel/k_hardware_timer.cpp
new file mode 100644
index 000000000..afa777f9a
--- /dev/null
+++ b/src/core/hle/kernel/k_hardware_timer.cpp
@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/k_hardware_timer.h"
+#include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/time_manager.h"
+
+namespace Kernel {
+
+void KHardwareTimer::Initialize() {
+ // Create the timing callback to register with CoreTiming.
+ m_event_type = Core::Timing::CreateEvent(
+ "KHardwareTimer::Callback",
+ [this](std::uintptr_t timer_handle, s64, std::chrono::nanoseconds) {
+ reinterpret_cast<KHardwareTimer*>(timer_handle)->DoTask();
+ return std::nullopt;
+ });
+}
+
+void KHardwareTimer::Finalize() {
+ this->DisableInterrupt();
+}
+
+void KHardwareTimer::DoTask() {
+ // Handle the interrupt.
+ {
+ KScopedSchedulerLock slk{m_kernel};
+ KScopedSpinLock lk(this->GetLock());
+
+ //! Ignore this event if needed.
+ if (!this->GetInterruptEnabled()) {
+ return;
+ }
+
+ // Disable the timer interrupt while we handle this.
+ this->DisableInterrupt();
+
+ if (const s64 next_time = this->DoInterruptTaskImpl(GetTick());
+ 0 < next_time && next_time <= m_wakeup_time) {
+ // We have a next time, so we should set the time to interrupt and turn the interrupt
+ // on.
+ this->EnableInterrupt(next_time);
+ }
+ }
+
+ // Clear the timer interrupt.
+ // Kernel::GetInterruptManager().ClearInterrupt(KInterruptName_NonSecurePhysicalTimer,
+ // GetCurrentCoreId());
+}
+
+void KHardwareTimer::EnableInterrupt(s64 wakeup_time) {
+ this->DisableInterrupt();
+
+ m_wakeup_time = wakeup_time;
+ m_kernel.System().CoreTiming().ScheduleEvent(std::chrono::nanoseconds{m_wakeup_time},
+ m_event_type, reinterpret_cast<uintptr_t>(this),
+ true);
+}
+
+void KHardwareTimer::DisableInterrupt() {
+ m_kernel.System().CoreTiming().UnscheduleEvent(m_event_type, reinterpret_cast<uintptr_t>(this));
+ m_wakeup_time = std::numeric_limits<s64>::max();
+}
+
+s64 KHardwareTimer::GetTick() {
+ return m_kernel.System().CoreTiming().GetGlobalTimeNs().count();
+}
+
+bool KHardwareTimer::GetInterruptEnabled() {
+ return m_wakeup_time != std::numeric_limits<s64>::max();
+}
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_hardware_timer.h b/src/core/hle/kernel/k_hardware_timer.h
new file mode 100644
index 000000000..2c88876b3
--- /dev/null
+++ b/src/core/hle/kernel/k_hardware_timer.h
@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/kernel/k_hardware_timer_base.h"
+
+namespace Core::Timing {
+struct EventType;
+} // namespace Core::Timing
+
+namespace Kernel {
+
+class KHardwareTimer : /* public KInterruptTask, */ public KHardwareTimerBase {
+public:
+ explicit KHardwareTimer(KernelCore& kernel) : KHardwareTimerBase{kernel} {}
+
+ // Public API.
+ void Initialize();
+ void Finalize();
+
+ s64 GetCount() {
+ return GetTick();
+ }
+
+ void RegisterAbsoluteTask(KTimerTask* task, s64 task_time) {
+ KScopedDisableDispatch dd{m_kernel};
+ KScopedSpinLock lk{this->GetLock()};
+
+ if (this->RegisterAbsoluteTaskImpl(task, task_time)) {
+ if (task_time <= m_wakeup_time) {
+ this->EnableInterrupt(task_time);
+ }
+ }
+ }
+
+private:
+ void EnableInterrupt(s64 wakeup_time);
+ void DisableInterrupt();
+ bool GetInterruptEnabled();
+ s64 GetTick();
+ void DoTask();
+
+private:
+ // Absolute time in nanoseconds
+ s64 m_wakeup_time{std::numeric_limits<s64>::max()};
+ std::shared_ptr<Core::Timing::EventType> m_event_type{};
+};
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_hardware_timer_base.h b/src/core/hle/kernel/k_hardware_timer_base.h
new file mode 100644
index 000000000..6318b35bd
--- /dev/null
+++ b/src/core/hle/kernel/k_hardware_timer_base.h
@@ -0,0 +1,92 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/kernel/k_spin_lock.h"
+#include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/k_timer_task.h"
+
+namespace Kernel {
+
+class KHardwareTimerBase {
+public:
+ explicit KHardwareTimerBase(KernelCore& kernel) : m_kernel{kernel} {}
+
+ void CancelTask(KTimerTask* task) {
+ KScopedDisableDispatch dd{m_kernel};
+ KScopedSpinLock lk{m_lock};
+
+ if (const s64 task_time = task->GetTime(); task_time > 0) {
+ this->RemoveTaskFromTree(task);
+ }
+ }
+
+protected:
+ KSpinLock& GetLock() {
+ return m_lock;
+ }
+
+ s64 DoInterruptTaskImpl(s64 cur_time) {
+ // We want to handle all tasks, returning the next time that a task is scheduled.
+ while (true) {
+ // Get the next task. If there isn't one, return 0.
+ KTimerTask* task = m_next_task;
+ if (task == nullptr) {
+ return 0;
+ }
+
+ // If the task needs to be done in the future, do it in the future and not now.
+ if (const s64 task_time = task->GetTime(); task_time > cur_time) {
+ return task_time;
+ }
+
+ // Remove the task from the tree of tasks, and update our next task.
+ this->RemoveTaskFromTree(task);
+
+ // Handle the task.
+ task->OnTimer();
+ }
+ }
+
+ bool RegisterAbsoluteTaskImpl(KTimerTask* task, s64 task_time) {
+ ASSERT(task_time > 0);
+
+ // Set the task's time, and insert it into our tree.
+ task->SetTime(task_time);
+ m_task_tree.insert(*task);
+
+ // Update our next task if relevant.
+ if (m_next_task != nullptr && m_next_task->GetTime() <= task_time) {
+ return false;
+ }
+ m_next_task = task;
+ return true;
+ }
+
+private:
+ void RemoveTaskFromTree(KTimerTask* task) {
+ // Erase from the tree.
+ auto it = m_task_tree.erase(m_task_tree.iterator_to(*task));
+
+ // Clear the task's scheduled time.
+ task->SetTime(0);
+
+ // Update our next task if relevant.
+ if (m_next_task == task) {
+ m_next_task = (it != m_task_tree.end()) ? std::addressof(*it) : nullptr;
+ }
+ }
+
+protected:
+ KernelCore& m_kernel;
+
+private:
+ using TimerTaskTree = Common::IntrusiveRedBlackTreeBaseTraits<KTimerTask>::TreeType<KTimerTask>;
+
+ KSpinLock m_lock{};
+ TimerTaskTree m_task_tree{};
+ KTimerTask* m_next_task{};
+};
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_thread.h b/src/core/hle/kernel/k_thread.h
index dc52b4ed3..1320451c0 100644
--- a/src/core/hle/kernel/k_thread.h
+++ b/src/core/hle/kernel/k_thread.h
@@ -22,6 +22,7 @@
#include "core/hle/kernel/k_light_lock.h"
#include "core/hle/kernel/k_spin_lock.h"
#include "core/hle/kernel/k_synchronization_object.h"
+#include "core/hle/kernel/k_timer_task.h"
#include "core/hle/kernel/k_worker_task.h"
#include "core/hle/kernel/slab_helpers.h"
#include "core/hle/kernel/svc_common.h"
@@ -112,7 +113,8 @@ void SetCurrentThread(KernelCore& kernel, KThread* thread);
[[nodiscard]] s32 GetCurrentCoreId(KernelCore& kernel);
class KThread final : public KAutoObjectWithSlabHeapAndContainer<KThread, KWorkerTask>,
- public boost::intrusive::list_base_hook<> {
+ public boost::intrusive::list_base_hook<>,
+ public KTimerTask {
KERNEL_AUTOOBJECT_TRAITS(KThread, KSynchronizationObject);
private:
@@ -660,7 +662,7 @@ private:
union SyncObjectBuffer {
std::array<KSynchronizationObject*, Svc::ArgumentHandleCountMax> sync_objects{};
std::array<Handle,
- Svc::ArgumentHandleCountMax*(sizeof(KSynchronizationObject*) / sizeof(Handle))>
+ Svc::ArgumentHandleCountMax * (sizeof(KSynchronizationObject*) / sizeof(Handle))>
handles;
constexpr SyncObjectBuffer() {}
};
@@ -681,10 +683,8 @@ private:
};
template <typename T>
- requires(
- std::same_as<T, KThread> ||
- std::same_as<T, RedBlackKeyType>) static constexpr int Compare(const T& lhs,
- const KThread& rhs) {
+ requires(std::same_as<T, KThread> || std::same_as<T, RedBlackKeyType>)
+ static constexpr int Compare(const T& lhs, const KThread& rhs) {
const u64 l_key = lhs.GetConditionVariableKey();
const u64 r_key = rhs.GetConditionVariableKey();
@@ -840,4 +840,8 @@ private:
KernelCore& kernel;
};
+inline void KTimerTask::OnTimer() {
+ static_cast<KThread*>(this)->OnTimer();
+}
+
} // namespace Kernel
diff --git a/src/core/hle/kernel/k_timer_task.h b/src/core/hle/kernel/k_timer_task.h
new file mode 100644
index 000000000..66f0a5a90
--- /dev/null
+++ b/src/core/hle/kernel/k_timer_task.h
@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/intrusive_red_black_tree.h"
+
+namespace Kernel {
+
+class KTimerTask : public Common::IntrusiveRedBlackTreeBaseNode<KTimerTask> {
+public:
+ static constexpr int Compare(const KTimerTask& lhs, const KTimerTask& rhs) {
+ if (lhs.GetTime() < rhs.GetTime()) {
+ return -1;
+ } else {
+ return 1;
+ }
+ }
+
+ constexpr explicit KTimerTask() = default;
+
+ constexpr void SetTime(s64 t) {
+ m_time = t;
+ }
+
+ constexpr s64 GetTime() const {
+ return m_time;
+ }
+
+ // NOTE: This is virtual in Nintendo's kernel. Prior to 13.0.0, KWaitObject was also a
+ // TimerTask; this is no longer the case. Since this is now KThread exclusive, we have
+ // devirtualized (see inline declaration for this inside k_thread.h).
+ void OnTimer();
+
+private:
+ // Absolute time in nanoseconds
+ s64 m_time{};
+};
+
+} // namespace Kernel
From c770f25ccb4755f6a6861037fbfdfdac55191348 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Sun, 18 Dec 2022 16:50:02 -0500
Subject: [PATCH 2/2] kernel: remove TimeManager
---
src/core/CMakeLists.txt | 2 -
src/core/hle/kernel/k_address_arbiter.cpp | 1 -
src/core/hle/kernel/k_hardware_timer.cpp | 7 ++-
src/core/hle/kernel/k_hardware_timer.h | 8 +++-
.../k_scoped_scheduler_lock_and_sleep.h | 4 +-
src/core/hle/kernel/k_thread.h | 8 ++--
src/core/hle/kernel/k_thread_queue.cpp | 6 +--
src/core/hle/kernel/kernel.cpp | 20 +++++----
src/core/hle/kernel/kernel.h | 9 ++--
src/core/hle/kernel/time_manager.cpp | 44 -------------------
src/core/hle/kernel/time_manager.h | 41 -----------------
11 files changed, 33 insertions(+), 117 deletions(-)
delete mode 100644 src/core/hle/kernel/time_manager.cpp
delete mode 100644 src/core/hle/kernel/time_manager.h
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index dcccd0435..0252c8c31 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -294,8 +294,6 @@ add_library(core STATIC
hle/kernel/svc_common.h
hle/kernel/svc_types.h
hle/kernel/svc_wrap.h
- hle/kernel/time_manager.cpp
- hle/kernel/time_manager.h
hle/result.h
hle/service/acc/acc.cpp
hle/service/acc/acc.h
diff --git a/src/core/hle/kernel/k_address_arbiter.cpp b/src/core/hle/kernel/k_address_arbiter.cpp
index f85b11557..a442a3b98 100644
--- a/src/core/hle/kernel/k_address_arbiter.cpp
+++ b/src/core/hle/kernel/k_address_arbiter.cpp
@@ -10,7 +10,6 @@
#include "core/hle/kernel/k_thread_queue.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/svc_results.h"
-#include "core/hle/kernel/time_manager.h"
#include "core/memory.h"
namespace Kernel {
diff --git a/src/core/hle/kernel/k_hardware_timer.cpp b/src/core/hle/kernel/k_hardware_timer.cpp
index afa777f9a..6bba79ea0 100644
--- a/src/core/hle/kernel/k_hardware_timer.cpp
+++ b/src/core/hle/kernel/k_hardware_timer.cpp
@@ -5,15 +5,13 @@
#include "core/core_timing.h"
#include "core/hle/kernel/k_hardware_timer.h"
#include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/time_manager.h"
namespace Kernel {
void KHardwareTimer::Initialize() {
// Create the timing callback to register with CoreTiming.
m_event_type = Core::Timing::CreateEvent(
- "KHardwareTimer::Callback",
- [this](std::uintptr_t timer_handle, s64, std::chrono::nanoseconds) {
+ "KHardwareTimer::Callback", [](std::uintptr_t timer_handle, s64, std::chrono::nanoseconds) {
reinterpret_cast<KHardwareTimer*>(timer_handle)->DoTask();
return std::nullopt;
});
@@ -21,6 +19,7 @@ void KHardwareTimer::Initialize() {
void KHardwareTimer::Finalize() {
this->DisableInterrupt();
+ m_event_type.reset();
}
void KHardwareTimer::DoTask() {
@@ -64,7 +63,7 @@ void KHardwareTimer::DisableInterrupt() {
m_wakeup_time = std::numeric_limits<s64>::max();
}
-s64 KHardwareTimer::GetTick() {
+s64 KHardwareTimer::GetTick() const {
return m_kernel.System().CoreTiming().GetGlobalTimeNs().count();
}
diff --git a/src/core/hle/kernel/k_hardware_timer.h b/src/core/hle/kernel/k_hardware_timer.h
index 2c88876b3..00bef6ea1 100644
--- a/src/core/hle/kernel/k_hardware_timer.h
+++ b/src/core/hle/kernel/k_hardware_timer.h
@@ -19,10 +19,14 @@ public:
void Initialize();
void Finalize();
- s64 GetCount() {
+ s64 GetCount() const {
return GetTick();
}
+ void RegisterTask(KTimerTask* task, s64 time_from_now) {
+ this->RegisterAbsoluteTask(task, GetTick() + time_from_now);
+ }
+
void RegisterAbsoluteTask(KTimerTask* task, s64 task_time) {
KScopedDisableDispatch dd{m_kernel};
KScopedSpinLock lk{this->GetLock()};
@@ -38,7 +42,7 @@ private:
void EnableInterrupt(s64 wakeup_time);
void DisableInterrupt();
bool GetInterruptEnabled();
- s64 GetTick();
+ s64 GetTick() const;
void DoTask();
private:
diff --git a/src/core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h b/src/core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h
index 76c095e69..76db65a4d 100644
--- a/src/core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h
+++ b/src/core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h
@@ -5,9 +5,9 @@
#include "common/common_types.h"
#include "core/hle/kernel/global_scheduler_context.h"
+#include "core/hle/kernel/k_hardware_timer.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/time_manager.h"
namespace Kernel {
@@ -22,7 +22,7 @@ public:
~KScopedSchedulerLockAndSleep() {
// Register the sleep.
if (timeout_tick > 0) {
- kernel.TimeManager().ScheduleTimeEvent(thread, timeout_tick);
+ kernel.HardwareTimer().RegisterTask(thread, timeout_tick);
}
// Unlock the scheduler.
diff --git a/src/core/hle/kernel/k_thread.h b/src/core/hle/kernel/k_thread.h
index 1320451c0..7cd94a340 100644
--- a/src/core/hle/kernel/k_thread.h
+++ b/src/core/hle/kernel/k_thread.h
@@ -662,7 +662,7 @@ private:
union SyncObjectBuffer {
std::array<KSynchronizationObject*, Svc::ArgumentHandleCountMax> sync_objects{};
std::array<Handle,
- Svc::ArgumentHandleCountMax * (sizeof(KSynchronizationObject*) / sizeof(Handle))>
+ Svc::ArgumentHandleCountMax*(sizeof(KSynchronizationObject*) / sizeof(Handle))>
handles;
constexpr SyncObjectBuffer() {}
};
@@ -683,8 +683,10 @@ private:
};
template <typename T>
- requires(std::same_as<T, KThread> || std::same_as<T, RedBlackKeyType>)
- static constexpr int Compare(const T& lhs, const KThread& rhs) {
+ requires(
+ std::same_as<T, KThread> ||
+ std::same_as<T, RedBlackKeyType>) static constexpr int Compare(const T& lhs,
+ const KThread& rhs) {
const u64 l_key = lhs.GetConditionVariableKey();
const u64 r_key = rhs.GetConditionVariableKey();
diff --git a/src/core/hle/kernel/k_thread_queue.cpp b/src/core/hle/kernel/k_thread_queue.cpp
index 9f4e081ba..5f1dc97eb 100644
--- a/src/core/hle/kernel/k_thread_queue.cpp
+++ b/src/core/hle/kernel/k_thread_queue.cpp
@@ -1,9 +1,9 @@
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
+#include "core/hle/kernel/k_hardware_timer.h"
#include "core/hle/kernel/k_thread_queue.h"
#include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/time_manager.h"
namespace Kernel {
@@ -22,7 +22,7 @@ void KThreadQueue::EndWait(KThread* waiting_thread, Result wait_result) {
waiting_thread->ClearWaitQueue();
// Cancel the thread task.
- kernel.TimeManager().UnscheduleTimeEvent(waiting_thread);
+ kernel.HardwareTimer().CancelTask(waiting_thread);
}
void KThreadQueue::CancelWait(KThread* waiting_thread, Result wait_result, bool cancel_timer_task) {
@@ -37,7 +37,7 @@ void KThreadQueue::CancelWait(KThread* waiting_thread, Result wait_result, bool
// Cancel the thread task.
if (cancel_timer_task) {
- kernel.TimeManager().UnscheduleTimeEvent(waiting_thread);
+ kernel.HardwareTimer().CancelTask(waiting_thread);
}
}
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 0eb74a422..b75bac5df 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -26,6 +26,7 @@
#include "core/hle/kernel/k_client_port.h"
#include "core/hle/kernel/k_dynamic_resource_manager.h"
#include "core/hle/kernel/k_handle_table.h"
+#include "core/hle/kernel/k_hardware_timer.h"
#include "core/hle/kernel/k_memory_layout.h"
#include "core/hle/kernel/k_memory_manager.h"
#include "core/hle/kernel/k_page_buffer.h"
@@ -39,7 +40,6 @@
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/physical_core.h"
#include "core/hle/kernel/service_thread.h"
-#include "core/hle/kernel/time_manager.h"
#include "core/hle/result.h"
#include "core/hle/service/sm/sm.h"
#include "core/memory.h"
@@ -55,7 +55,7 @@ struct KernelCore::Impl {
static constexpr size_t ReservedDynamicPageCount = 64;
explicit Impl(Core::System& system_, KernelCore& kernel_)
- : time_manager{system_}, service_threads_manager{1, "ServiceThreadsManager"},
+ : service_threads_manager{1, "ServiceThreadsManager"},
service_thread_barrier{2}, system{system_} {}
void SetMulticore(bool is_multi) {
@@ -63,6 +63,9 @@ struct KernelCore::Impl {
}
void Initialize(KernelCore& kernel) {
+ hardware_timer = std::make_unique<Kernel::KHardwareTimer>(kernel);
+ hardware_timer->Initialize();
+
global_object_list_container = std::make_unique<KAutoObjectWithListContainer>(kernel);
global_scheduler_context = std::make_unique<Kernel::GlobalSchedulerContext>(kernel);
global_handle_table = std::make_unique<Kernel::KHandleTable>(kernel);
@@ -193,6 +196,9 @@ struct KernelCore::Impl {
// Ensure that the object list container is finalized and properly shutdown.
global_object_list_container->Finalize();
global_object_list_container.reset();
+
+ hardware_timer->Finalize();
+ hardware_timer.reset();
}
void CloseServices() {
@@ -832,7 +838,7 @@ struct KernelCore::Impl {
std::vector<KProcess*> process_list;
std::atomic<KProcess*> current_process{};
std::unique_ptr<Kernel::GlobalSchedulerContext> global_scheduler_context;
- Kernel::TimeManager time_manager;
+ std::unique_ptr<Kernel::KHardwareTimer> hardware_timer;
Init::KSlabResourceCounts slab_resource_counts{};
KResourceLimit* system_resource_limit{};
@@ -1019,12 +1025,8 @@ Kernel::KScheduler* KernelCore::CurrentScheduler() {
return impl->schedulers[core_id].get();
}
-Kernel::TimeManager& KernelCore::TimeManager() {
- return impl->time_manager;
-}
-
-const Kernel::TimeManager& KernelCore::TimeManager() const {
- return impl->time_manager;
+Kernel::KHardwareTimer& KernelCore::HardwareTimer() {
+ return *impl->hardware_timer;
}
Core::ExclusiveMonitor& KernelCore::GetExclusiveMonitor() {
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 2e22fe0f6..8d22f8d2c 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -39,6 +39,7 @@ class KDynamicPageManager;
class KEvent;
class KEventInfo;
class KHandleTable;
+class KHardwareTimer;
class KLinkedListNode;
class KMemoryLayout;
class KMemoryManager;
@@ -63,7 +64,6 @@ class KCodeMemory;
class PhysicalCore;
class ServiceThread;
class Synchronization;
-class TimeManager;
using ServiceInterfaceFactory =
std::function<KClientPort&(Service::SM::ServiceManager&, Core::System&)>;
@@ -175,11 +175,8 @@ public:
/// Gets the an instance of the current physical CPU core.
const Kernel::PhysicalCore& CurrentPhysicalCore() const;
- /// Gets the an instance of the TimeManager Interface.
- Kernel::TimeManager& TimeManager();
-
- /// Gets the an instance of the TimeManager Interface.
- const Kernel::TimeManager& TimeManager() const;
+ /// Gets the an instance of the hardware timer.
+ Kernel::KHardwareTimer& HardwareTimer();
/// Stops execution of 'id' core, in order to reschedule a new thread.
void PrepareReschedule(std::size_t id);
diff --git a/src/core/hle/kernel/time_manager.cpp b/src/core/hle/kernel/time_manager.cpp
deleted file mode 100644
index 5ee72c432..000000000
--- a/src/core/hle/kernel/time_manager.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include "common/assert.h"
-#include "core/core.h"
-#include "core/core_timing.h"
-#include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/k_thread.h"
-#include "core/hle/kernel/time_manager.h"
-
-namespace Kernel {
-
-TimeManager::TimeManager(Core::System& system_) : system{system_} {
- time_manager_event_type = Core::Timing::CreateEvent(
- "Kernel::TimeManagerCallback",
- [this](std::uintptr_t thread_handle, s64 time,
- std::chrono::nanoseconds) -> std::optional<std::chrono::nanoseconds> {
- KThread* thread = reinterpret_cast<KThread*>(thread_handle);
- {
- KScopedSchedulerLock sl(system.Kernel());
- thread->OnTimer();
- }
- return std::nullopt;
- });
-}
-
-void TimeManager::ScheduleTimeEvent(KThread* thread, s64 nanoseconds) {
- std::scoped_lock lock{mutex};
- if (nanoseconds > 0) {
- ASSERT(thread);
- ASSERT(thread->GetState() != ThreadState::Runnable);
- system.CoreTiming().ScheduleEvent(std::chrono::nanoseconds{nanoseconds},
- time_manager_event_type,
- reinterpret_cast<uintptr_t>(thread));
- }
-}
-
-void TimeManager::UnscheduleTimeEvent(KThread* thread) {
- std::scoped_lock lock{mutex};
- system.CoreTiming().UnscheduleEvent(time_manager_event_type,
- reinterpret_cast<uintptr_t>(thread));
-}
-
-} // namespace Kernel
diff --git a/src/core/hle/kernel/time_manager.h b/src/core/hle/kernel/time_manager.h
deleted file mode 100644
index 94d16b3b4..000000000
--- a/src/core/hle/kernel/time_manager.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <memory>
-#include <mutex>
-
-namespace Core {
-class System;
-} // namespace Core
-
-namespace Core::Timing {
-struct EventType;
-} // namespace Core::Timing
-
-namespace Kernel {
-
-class KThread;
-
-/**
- * The `TimeManager` takes care of scheduling time events on threads and executes their TimeUp
- * method when the event is triggered.
- */
-class TimeManager {
-public:
- explicit TimeManager(Core::System& system);
-
- /// Schedule a time event on `timetask` thread that will expire in 'nanoseconds'
- void ScheduleTimeEvent(KThread* time_task, s64 nanoseconds);
-
- /// Unschedule an existing time event
- void UnscheduleTimeEvent(KThread* thread);
-
-private:
- Core::System& system;
- std::shared_ptr<Core::Timing::EventType> time_manager_event_type;
- std::mutex mutex;
-};
-
-} // namespace Kernel