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Kernel/aarch64: Implement Processor::{enter,exit}_trap

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And use them in interrupt handling.
This commit is contained in:
Timon Kruiper 2022-12-22 11:56:40 +01:00 • committed by Andrew Kaster
parent ee883b839c
commit f232133f65
3 changed files with 81 additions and 9 deletions
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17
Kernel/Arch/aarch64/Interrupts.cpp
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@ -5,20 +5,21 @@
*/
#include <Kernel/Arch/Interrupts.h>
#include <Kernel/Arch/TrapFrame.h>
#include <Kernel/Arch/aarch64/InterruptManagement.h>
#include <Kernel/Interrupts/GenericInterruptHandler.h>
#include <Kernel/Interrupts/SharedIRQHandler.h>
#include <Kernel/Interrupts/UnhandledInterruptHandler.h>
struct TrapFrame;
namespace Kernel {
static Array<GenericInterruptHandler*, 64> s_interrupt_handlers;
extern "C" void handle_interrupt(TrapFrame const* const);
extern "C" void handle_interrupt(TrapFrame const* const)
extern "C" void handle_interrupt(TrapFrame&);
extern "C" void handle_interrupt(TrapFrame& trap_frame)
{
Processor::current().enter_trap(trap_frame, true);
for (auto& interrupt_controller : InterruptManagement::the().controllers()) {
auto pending_interrupts = interrupt_controller->pending_interrupts();
@ -31,20 +32,18 @@ extern "C" void handle_interrupt(TrapFrame const* const)
continue;
}
// TODO: Consider not passing the RegisterState into the handle_interrupt()
// function, since no IRQHandler seems to be using the registers.
RegisterState regs {};
auto* handler = s_interrupt_handlers[irq];
VERIFY(handler);
handler->increment_call_count();
handler->handle_interrupt(regs);
handler->handle_interrupt(*trap_frame.regs);
handler->eoi();
irq += 1;
pending_interrupts >>= 1;
}
}
Processor::current().exit_trap(trap_frame);
}
// FIXME: Share the code below with Arch/x86_64/Interrupts.cpp