drew/acadia
1
0
Fork 0
Code Issues 6 Pull requests Projects Releases Packages Wiki Activity Actions

[zion] Move to using the LAPIC timer over the PIT.

Browse source
This commit is contained in:
Drew Galbraith 2023-08-01 20:18:47 -07:00
parent f0add6e0c3
commit d99624daf6
8 changed files with 113 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

10
zion/interrupt/interrupt.cpp
View file

@ -5,6 +5,7 @@
#include "common/port.h"
#include "debug/debug.h"
#include "interrupt/apic.h"
#include "interrupt/apic_timer.h"
#include "memory/kernel_heap.h"
#include "scheduler/scheduler.h"
@ -124,9 +125,15 @@ extern "C" void interrupt_page_fault(InterruptFrame* frame) {
panic("PF");
}
uint64_t cnt = 0;
extern "C" void isr_timer();
extern "C" void interrupt_timer(InterruptFrame*) {
gApicTimer->Calibrate();
SignalEOI();
}
uint64_t cnt = 0;
extern "C" void isr_apic_timer();
extern "C" void interrupt_apic_timer(InterruptFrame*) {
cnt++;
if (cnt % 20 == 0) {
if (cnt == 20) {
@ -170,6 +177,7 @@ void InitIdt() {
gIdt[14] = CreateDescriptor(isr_page_fault);
gIdt[0x20] = CreateDescriptor(isr_timer);
gIdt[0x21] = CreateDescriptor(isr_apic_timer);
gIdt[0x30] = CreateDescriptor(isr_pci1);
gIdt[0x31] = CreateDescriptor(isr_pci2);