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Kernel/aarch64: Correctly implement Processor::leave_critical

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This commit is contained in:
Timon Kruiper 2023-02-22 23:26:30 +01:00 • committed by Andrew Kaster
parent 1fa1f09c38
commit 1f68ac600c
2 changed files with 25 additions and 6 deletions
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22
Kernel/Arch/aarch64/Processor.cpp
View file

@ -121,6 +121,28 @@ void Processor::flush_tlb(Memory::PageDirectory const*, VirtualAddress vaddr, si
flush_tlb_local(vaddr, page_count);
}
void Processor::leave_critical()
{
InterruptDisabler disabler;
current().do_leave_critical();
}
void Processor::do_leave_critical()
{
VERIFY(m_in_critical > 0);
if (m_in_critical == 1) {
if (m_in_irq == 0) {
// FIXME: Call deferred_call_execute_pending()!
VERIFY(m_in_critical == 1);
}
m_in_critical = 0;
if (m_in_irq == 0)
check_invoke_scheduler();
} else {
m_in_critical = m_in_critical - 1;
}
}
u32 Processor::clear_critical()
{
InterruptDisabler disabler;

9
Kernel/Arch/aarch64/Processor.h
View file

@ -189,12 +189,7 @@ public:
current_processor.m_in_critical = current_processor.m_in_critical + 1;
}
ALWAYS_INLINE static void leave_critical()
{
auto& current_processor = current();
current_processor.m_in_critical = current_processor.m_in_critical - 1;
}
static void leave_critical();
static u32 clear_critical();
ALWAYS_INLINE static void restore_critical(u32 prev_critical)
@ -285,6 +280,8 @@ public:
private:
Processor(Processor const&) = delete;
void do_leave_critical();
u32 m_cpu;
CPUFeature::Type m_features;
u8 m_physical_address_bit_width;