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CPU: Simplify handle_interrupt() function

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Liav A 2020-02-28 18:25:19 +02:00 committed by Andreas Kling
parent 800a46ace9
commit 86395810a9
Notes: sideshowbarker 2024-07-19 08:58:43 +09:00 
Author: https://github.com/supercomputer7
Commit: https://github.com/SerenityOS/serenity/commit/86395810a95
Pull-request: https://github.com/SerenityOS/serenity/pull/1323
Reviewed-by: https://github.com/awesomekling
1 changed files with 7 additions and 9 deletions
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16
Kernel/Arch/i386/CPU.cpp
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@ -33,6 +33,7 @@
#include <Kernel/Interrupts/IRQHandler.h>
#include <Kernel/Interrupts/InterruptManagement.h>
#include <Kernel/Interrupts/SharedIRQHandler.h>
#include <Kernel/Interrupts/SpuriousInterruptHandler.h>
#include <Kernel/Interrupts/UnhandledInterruptHandler.h>
#include <Kernel/KSyms.h>
#include <Kernel/Process.h>
@ -245,7 +246,8 @@ void page_fault_handler(RegisterState regs)
#ifdef PAGE_FAULT_DEBUG
u32 fault_page_directory = read_cr3();
dbg() << (current ? Process::current->name().characters() : "(none)") << "(" << (current ? Process::current->pid() : 0) << "): ring" << (regs.cs & 3) << " " << (regs.exception_code & 1 ? "PV" : "NP") << " page fault in PD=" << String::format("%x", fault_page_directory) << ", " << (regs.exception_code & 8 ? "reserved-bit " : "") << regs.exception_code & 2 ? "write" : "read" <<" V" << String::format("%08x", fault_address);
dbg() << (current ? Process::current->name().characters() : "(none)") << "(" << (current ? Process::current->pid() : 0) << "): ring" << (regs.cs & 3) << " " << (regs.exception_code & 1 ? "PV" : "NP") << " page fault in PD=" << String::format("%x", fault_page_directory) << ", " << (regs.exception_code & 8 ? "reserved-bit " : "") << regs.exception_code & 2 ? "write" : "read"
<< " V" << String::format("%08x", fault_address);
#endif
#ifdef PAGE_FAULT_DEBUG
@ -661,14 +663,10 @@ void handle_interrupt(RegisterState regs)
++g_in_irq;
ASSERT(regs.isr_number >= 0x50 && regs.isr_number <= 0x5f);
u8 irq = (u8)(regs.isr_number - 0x50);
if (s_interrupt_handler[irq]) {
s_interrupt_handler[irq]->handle_interrupt(regs);
s_interrupt_handler[irq]->increment_invoking_counter();
s_interrupt_handler[irq]->eoi();
} else {
dbg() << "No IRQ " << irq << " Handler installed!";
hang();
}
ASSERT(s_interrupt_handler[irq]);
s_interrupt_handler[irq]->handle_interrupt(regs);
s_interrupt_handler[irq]->increment_invoking_counter();
s_interrupt_handler[irq]->eoi();
--g_in_irq;
}