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Kernel/Interrupts: Return boolean on whether we handled the interrupt

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If we are in a shared interrupt handler, the called handlers might
indicate it was not their interrupt, so we should not increment the
call counter of these handlers.
This commit is contained in:
Liav A 2021-06-05 09:00:18 +03:00 • committed by Andreas Kling
parent 7a6d5a7b8b
commit b91df26d4a
43 changed files with 125 additions and 71 deletions
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11
Kernel/Interrupts/SpuriousInterruptHandler.cpp
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@ -54,16 +54,19 @@ SpuriousInterruptHandler::~SpuriousInterruptHandler()
{
}
void SpuriousInterruptHandler::handle_interrupt(const RegisterState& state)
bool SpuriousInterruptHandler::handle_interrupt(const RegisterState& state)
{
// Actually check if IRQ7 or IRQ15 are spurious, and if not, call the real handler to handle the IRQ.
if (m_responsible_irq_controller->get_isr() & (1 << interrupt_number())) {
m_real_irq = true; // remember that we had a real IRQ, when EOI later!
m_real_handler->increment_invoking_counter();
m_real_handler->handle_interrupt(state);
return;
if (m_real_handler->handle_interrupt(state)) {
m_real_handler->increment_invoking_counter();
return true;
}
return false;
}
dbgln("Spurious interrupt, vector {}", interrupt_number());
return true;
}
void SpuriousInterruptHandler::enable_interrupt_vector()