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2026-05-07 02:22:25 +03:00
commit 1a9fd27a31
226 changed files with 29188 additions and 0 deletions
@@ -0,0 +1,82 @@
+#include "../../../include/interrupts/interrupts.h"
+#include "../../../include/io/serial.h"
+#include "../../../include/interrupts/irq.h"
+#include "../../../include/interrupts/idt.h"
+#include "../../../include/io/ports.h"
+#include "../../../include/smp/percpu.h"
+#include "../../../include/apic/apic.h"
+
+extern const int_desc_t __start_irq_handlers[];
+extern const int_desc_t __stop_irq_handlers[];
+static int_handler_f registered_irq_interrupts[IRQ_INTERRUPTS_COUNT]__attribute__((aligned(64)));
+
+void irq_common_handler(struct int_frame_t* regs) {
+    uint64_t vec = regs->interrupt;
+
+    if (vec >= IRQ_INTERRUPTS_COUNT || vec < (IDT_MAX_DESCRIPTORS - IRQ_INTERRUPTS_COUNT)) {
+        serial_printf("IRQ vector out of range: %d\n", vec);
+        while (1)
+        {
+            asm volatile ("hlt");
+        }
+    }
+
+    if(registered_irq_interrupts[vec]) {
+        return registered_irq_interrupts[vec](regs);
+    }
+
+    serial_printf("IRQ interrupt handler\n");
+
+    while (1)
+    {
+        asm volatile ("hlt");
+    }
+}
+
+void setup_defined_irq_handlers(void) {
+    const int_desc_t* desc;
+    for (desc = __start_irq_handlers; desc < __stop_irq_handlers; desc++) {
+        if(desc->vector >= IRQ_INTERRUPTS_COUNT) {
+            serial_printf("Invalid IRQ vector number! Must be < %d\n", IRQ_INTERRUPTS_COUNT);
+            continue;
+        }
+        registered_irq_interrupts[desc->vector] = desc->handler;
+        serial_printf("Registered IRQ vector 0x%d\n", desc->vector);
+    }
+}
+
+extern percpu_t* percpu_regions[MAX_CPUS];
+
+DEFINE_IRQ(IPI_RESCHEDULE_VECTOR, ipi_reschedule_handler)
+{
+    (void)frame;
+
+    uint32_t id = lapic_get_id();
+    if (id < MAX_CPUS && percpu_regions[id] != NULL) {
+        percpu_regions[id]->need_resched = true;
+    }
+
+    lapic_eoi();
+}
+
+DEFINE_IRQ(IPI_TLB_SHOOTDOWN, ipi_tlb_shootdown_handler)
+{
+    (void)frame;
+
+    uint32_t id = lapic_get_id();
+    tlb_shootdown_t* q = &tlb_shootdown_queue[id];
+
+    if (q->pending) {
+        for (size_t i = 0; i < q->count; i++) {
+            uintptr_t addr = q->addresses[i];
+            if (addr != 0) {
+                asm volatile ("invlpg (%0)" :: "r"(addr) : "memory");
+            }
+        }
+
+        q->pending = false;
+        q->count = 0;
+    }
+
+    lapic_eoi();
+}