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Kernel: Store IRQControllers in NonnullRefPtrs instead of RefPtrs

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These are always non-null, so there's no point in storing them in a
nullable container.
This commit is contained in:
Idan Horowitz 2022-09-25 15:25:14 +03:00
parent 176989d811
commit 9abbeff79f
8 changed files with 13 additions and 15 deletions
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4
Kernel/Arch/aarch64/InterruptManagement.cpp
View file

@ -42,12 +42,12 @@ u8 InterruptManagement::acquire_mapped_interrupt_number(u8 interrupt_number)
return interrupt_number;
}
Vector<LockRefPtr<IRQController>> const& InterruptManagement::controllers()
Vector<NonnullLockRefPtr<IRQController>> const& InterruptManagement::controllers()
{
return m_interrupt_controllers;
}
LockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(u8)
NonnullLockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(u8)
{
// TODO: Support more interrupt controllers
VERIFY(m_interrupt_controllers.size() == 1);

6
Kernel/Arch/aarch64/InterruptManagement.h
View file

@ -20,14 +20,14 @@ public:
static u8 acquire_mapped_interrupt_number(u8 original_irq);
Vector<LockRefPtr<IRQController>> const& controllers();
LockRefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
Vector<NonnullLockRefPtr<IRQController>> const& controllers();
NonnullLockRefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
private:
InterruptManagement() = default;
void find_controllers();
Vector<LockRefPtr<IRQController>> m_interrupt_controllers;
Vector<NonnullLockRefPtr<IRQController>> m_interrupt_controllers;
};
}

6
Kernel/Arch/x86/InterruptManagement.h
View file

@ -51,8 +51,8 @@ public:
virtual void switch_to_pic_mode();
virtual void switch_to_ioapic_mode();
LockRefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
LockRefPtr<IRQController> get_responsible_irq_controller(IRQControllerType controller_type, u8 interrupt_vector);
NonnullLockRefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
NonnullLockRefPtr<IRQController> get_responsible_irq_controller(IRQControllerType controller_type, u8 interrupt_vector);
Vector<ISAInterruptOverrideMetadata> const& isa_overrides() const { return m_isa_interrupt_overrides; }
@ -69,7 +69,7 @@ private:
InterruptManagement();
PhysicalAddress search_for_madt();
void locate_apic_data();
Vector<LockRefPtr<IRQController>> m_interrupt_controllers;
Vector<NonnullLockRefPtr<IRQController>> m_interrupt_controllers;
Vector<ISAInterruptOverrideMetadata> m_isa_interrupt_overrides;
Vector<PCIInterruptOverrideMetadata> m_pci_interrupt_overrides;
PhysicalAddress m_madt;

5
Kernel/Arch/x86/common/InterruptManagement.cpp
View file

@ -65,7 +65,6 @@ void InterruptManagement::enumerate_interrupt_handlers(Function<void(GenericInte
IRQController& InterruptManagement::get_interrupt_controller(int index)
{
VERIFY(index >= 0);
VERIFY(!m_interrupt_controllers[index].is_null());
return *m_interrupt_controllers[index];
}
@ -98,7 +97,7 @@ u8 InterruptManagement::get_irq_vector(u8 mapped_interrupt_vector)
return mapped_interrupt_vector;
}
LockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(IRQControllerType controller_type, u8 interrupt_vector)
NonnullLockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(IRQControllerType controller_type, u8 interrupt_vector)
{
for (auto& irq_controller : m_interrupt_controllers) {
if (irq_controller->gsi_base() <= interrupt_vector && irq_controller->type() == controller_type)
@ -107,7 +106,7 @@ LockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(IR
VERIFY_NOT_REACHED();
}
LockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(u8 interrupt_vector)
NonnullLockRefPtr<IRQController> InterruptManagement::get_responsible_irq_controller(u8 interrupt_vector)
{
if (m_interrupt_controllers.size() == 1 && m_interrupt_controllers[0]->type() == IRQControllerType::i8259) {
return m_interrupt_controllers[0];

1
Kernel/Interrupts/IRQHandler.cpp
View file

@ -25,7 +25,6 @@ bool IRQHandler::eoi()
{
dbgln_if(IRQ_DEBUG, "EOI IRQ {}", interrupt_number());
if (!m_shared_with_others) {
VERIFY(!m_responsible_irq_controller.is_null());
m_responsible_irq_controller->eoi(*this);
return true;
}

2
Kernel/Interrupts/IRQHandler.h
View file

@ -40,7 +40,7 @@ protected:
private:
bool m_shared_with_others { false };
bool m_enabled { false };
LockRefPtr<IRQController> m_responsible_irq_controller;
NonnullLockRefPtr<IRQController> m_responsible_irq_controller;
};
}

2
Kernel/Interrupts/SharedIRQHandler.h
View file

@ -41,6 +41,6 @@ private:
explicit SharedIRQHandler(u8 interrupt_number);
bool m_enabled { true };
GenericInterruptHandler::List m_handlers;
LockRefPtr<IRQController> m_responsible_irq_controller;
NonnullLockRefPtr<IRQController> m_responsible_irq_controller;
};
}

2
Kernel/Interrupts/SpuriousInterruptHandler.h
View file

@ -42,7 +42,7 @@ private:
explicit SpuriousInterruptHandler(u8 interrupt_number);
bool m_enabled { false };
bool m_real_irq { false };
LockRefPtr<IRQController> m_responsible_irq_controller;
NonnullLockRefPtr<IRQController> m_responsible_irq_controller;
OwnPtr<GenericInterruptHandler> m_real_handler;
};
}