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kern: merge/simplify KInterruptEventTask into KInterruptEvent

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This commit is contained in:
Michael Scire 2022-10-11 21:49:39 -07:00 committed by SciresM
parent 2e73f33eb0
commit 947fdcf6f6
3 changed files with 12 additions and 90 deletions
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16
libraries/libmesosphere/include/mesosphere/kern_k_interrupt_event.hpp
View file

@ -22,9 +22,7 @@
namespace ams::kern {
class KInterruptEventTask;
class KInterruptEvent final : public KAutoObjectWithSlabHeapAndContainer<KInterruptEvent, KReadableEvent> {
class KInterruptEvent final : public KAutoObjectWithSlabHeapAndContainer<KInterruptEvent, KReadableEvent>, public KInterruptTask {
MESOSPHERE_AUTOOBJECT_TRAITS(KInterruptEvent, KReadableEvent);
private:
s32 m_interrupt_id;
@ -54,21 +52,9 @@ namespace ams::kern {
static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
constexpr s32 GetInterruptId() const { return m_interrupt_id; }
};
class KInterruptEventTask : public KSlabAllocated<KInterruptEventTask>, public KInterruptTask {
private:
KInterruptEvent *m_event;
public:
constexpr KInterruptEventTask() : m_event(nullptr) { /* ... */ }
~KInterruptEventTask() { /* ... */ }
virtual KInterruptTask *OnInterrupt(s32 interrupt_id) override;
virtual void DoTask() override;
void Unregister(s32 interrupt_id, s32 core_id);
public:
static Result Register(s32 interrupt_id, s32 core_id, bool level, KInterruptEvent *event);
};
}

1
libraries/libmesosphere/source/init/kern_init_slab_setup.cpp
View file

@ -24,7 +24,6 @@ namespace ams::kern::init {
HANDLER(KThread, (SLAB_COUNT(KThread)), ## __VA_ARGS__) \
HANDLER(KEvent, (SLAB_COUNT(KEvent)), ## __VA_ARGS__) \
HANDLER(KInterruptEvent, (SLAB_COUNT(KInterruptEvent)), ## __VA_ARGS__) \
HANDLER(KInterruptEventTask, (SLAB_COUNT(KInterruptEvent)), ## __VA_ARGS__) \
HANDLER(KPort, (SLAB_COUNT(KPort)), ## __VA_ARGS__) \
HANDLER(KSharedMemory, (SLAB_COUNT(KSharedMemory)), ## __VA_ARGS__) \
HANDLER(KSharedMemoryInfo, (SLAB_COUNT(KSharedMemory) * 8), ## __VA_ARGS__) \

85
libraries/libmesosphere/source/kern_k_interrupt_event.cpp
View file

@ -17,13 +17,6 @@
namespace ams::kern {
namespace {
constinit KLightLock g_interrupt_event_lock;
constinit KInterruptEventTask *g_interrupt_event_task_table[KInterruptController::NumInterrupts] = {};
}
Result KInterruptEvent::Initialize(int32_t interrupt_name, ams::svc::InterruptType type) {
MESOSPHERE_ASSERT_THIS();
@ -40,8 +33,8 @@ namespace ams::kern {
/* Initialize readable event base. */
KReadableEvent::Initialize(nullptr);
/* Try to register the task. */
R_TRY(KInterruptEventTask::Register(m_interrupt_id, m_core_id, type == ams::svc::InterruptType_Level, this));
/* Bind ourselves as the handler for our interrupt id. */
R_TRY(Kernel::GetInterruptManager().BindHandler(this, m_interrupt_id, m_core_id, KInterruptController::PriorityLevel_High, true, type == ams::svc::InterruptType_Level));
/* Mark initialized. */
m_is_initialized = true;
@ -51,7 +44,11 @@ namespace ams::kern {
void KInterruptEvent::Finalize() {
MESOSPHERE_ASSERT_THIS();
g_interrupt_event_task_table[m_interrupt_id]->Unregister(m_interrupt_id, m_core_id);
/* Unbind ourselves as the handler for our interrupt id. */
Kernel::GetInterruptManager().UnbindHandler(m_interrupt_id, m_core_id);
/* Synchronize the unbind on all cores, before proceeding. */
KDpcManager::Sync();
/* Perform inherited finalization. */
KReadableEvent::Finalize();
@ -72,79 +69,19 @@ namespace ams::kern {
R_SUCCEED();
}
Result KInterruptEventTask::Register(s32 interrupt_id, s32 core_id, bool level, KInterruptEvent *event) {
/* Lock the task table. */
KScopedLightLock lk(g_interrupt_event_lock);
/* Get a task for the id. */
bool allocated = false;
KInterruptEventTask *task = g_interrupt_event_task_table[interrupt_id];
if (task != nullptr) {
/* Check that there's not already an event for this task. */
R_UNLESS(task->m_event == nullptr, svc::ResultBusy());
} else {
/* Allocate a new task. */
task = KInterruptEventTask::Allocate();
R_UNLESS(task != nullptr, svc::ResultOutOfResource());
allocated = true;
}
/* Ensure that the task is cleaned up if anything goes wrong. */
ON_RESULT_FAILURE { if (allocated) { KInterruptEventTask::Free(task); } };
/* Register/bind the interrupt task. */
{
/* Lock the scheduler. */
KScopedSchedulerLock sl;
/* Bind the interrupt handler. */
R_TRY(Kernel::GetInterruptManager().BindHandler(task, interrupt_id, core_id, KInterruptController::PriorityLevel_High, true, level));
/* Set the event. */
task->m_event = event;
}
/* If we allocated, set the event in the table. */
if (allocated) {
g_interrupt_event_task_table[interrupt_id] = task;
}
R_SUCCEED();
}
void KInterruptEventTask::Unregister(s32 interrupt_id, s32 core_id) {
MESOSPHERE_ASSERT_THIS();
/* Lock the task table. */
KScopedLightLock lk(g_interrupt_event_lock);
/* Lock the scheduler. */
KScopedSchedulerLock sl;
/* Ensure we can unregister. */
MESOSPHERE_ABORT_UNLESS(g_interrupt_event_task_table[interrupt_id] == this);
MESOSPHERE_ABORT_UNLESS(m_event != nullptr);
/* Unbind the interrupt. */
m_event = nullptr;
Kernel::GetInterruptManager().UnbindHandler(interrupt_id, core_id);
}
KInterruptTask *KInterruptEventTask::OnInterrupt(s32 interrupt_id) {
KInterruptTask *KInterruptEvent::OnInterrupt(s32 interrupt_id) {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_UNUSED(interrupt_id);
return this;
}
void KInterruptEventTask::DoTask() {
void KInterruptEvent::DoTask() {
MESOSPHERE_ASSERT_THIS();
/* Lock the scheduler. */
KScopedSchedulerLock sl;
if (m_event != nullptr) {
m_event->Signal();
}
/* Signal. */
this->Signal();
}
}