Move GDT init into amd64/gdt.c

kernel/amd64/bootmain.c

@@ -1,7 +1,8 @@
 #include <amd64/apic.h>
 #include <amd64/debug.h>
+#include <amd64/gdt.h>
 #include <amd64/hpet.h>
-#include <amd64/init.h>
+#include <amd64/intr.h>
 #include <amd64/intr_defs.h>
 #include <amd64/msr-index.h>
 #include <amd64/msr.h>
@@ -39,7 +40,8 @@ void bootmain (void) {
 
   struct cpu* bsp_cpu = cpu_make (mp->bsp_lapic_id, 0);
 
-  init_gdt_idt (bsp_cpu, false);
+  gdt_init (bsp_cpu);
+  intr_init ();
   syscall_init ();
   debug_init ();
   pmm_init ();

kernel/amd64/gdt.c

@@ -1,6 +1,4 @@
 #include <amd64/gdt.h>
-#include <amd64/init.h>
-#include <amd64/intr.h>
 #include <amd64/smp.h>
 #include <aux/compiler.h>
 #include <libk/std.h>
@@ -21,7 +19,7 @@ static void gdt_set (volatile struct gdt_entry* ent, uint32_t base, uint32_t lim
 }
 
 /* Initialize GDT and TSS structures for a given CPU */
-static void gdt_init (struct cpu* cpu) {
+void gdt_init (struct cpu* cpu) {
   volatile struct tss* tss = &cpu->tss;
   volatile struct gdt_extended* gdt = &cpu->gdt;
 
@@ -73,17 +71,3 @@ static void gdt_init (struct cpu* cpu) {
 
   __asm__ volatile ("ltr %0" ::"r"((uint16_t)GDT_TSS));
 }
-
-/*
- * Initialize essentials (GDT, TSS, IDT) for a given CPU
- *
- * load_idt - Tell whether the IDT needs to be loaded. It only has to be loaded once on
- *  the BSP
- */
-void init_gdt_idt (struct cpu* cpu, bool load_idt) {
-  gdt_init (cpu);
-  if (load_idt)
-    idt_load ();
-  else
-    intr_init ();
-}

kernel/amd64/gdt.h

@@ -42,4 +42,6 @@ struct gdt_extended {
   struct gdt_entry tsshigh;
 } PACKED;
 
+void gdt_init (struct cpu* cpu);
+
 #endif // _KERNEL_AMD64_GDT_H

kernel/amd64/init.h

@@ -1,8 +0,0 @@
-#ifndef _KERNEL_AMD64_INIT_H
-#define _KERNEL_AMD64_INIT_H
-
-#include <amd64/smp.h>
-
-void init_gdt_idt (struct cpu* cpu, bool load_idt);
-
-#endif // _KERNEL_AMD64_INIT_H

kernel/amd64/smp.c

@@ -1,5 +1,6 @@
 #include <amd64/apic.h>
-#include <amd64/init.h>
+#include <amd64/gdt.h>
+#include <amd64/intr.h>
 #include <amd64/intr_defs.h>
 #include <amd64/mm.h>
 #include <amd64/msr-index.h>
@@ -79,7 +80,8 @@ static void smp_bootstrap (struct limine_mp_info* mp_info) {
 
   struct cpu* cpu = cpu_make (mp_info->lapic_id, mp_info->processor_id);
 
-  init_gdt_idt (cpu, true); /* gdt + idt */
+  gdt_init (cpu);
+  idt_load ();
   syscall_init ();
 
   lapic_init (1000);

kernel/amd64/src.mk

@@ -1,5 +1,4 @@
 c += amd64/bootmain.c \
-		 amd64/init.c \
 		 amd64/io.c \
 		 amd64/debug.c \
 		 amd64/spin_lock.c \
@@ -12,7 +11,8 @@ c += amd64/bootmain.c \
 		 amd64/smp.c \
 		 amd64/sched1.c \
 		 amd64/proc.c \
-		 amd64/syscall.c
+		 amd64/syscall.c \
+		 amd64/gdt.c
 
 S += amd64/intr_stub.S \
 		 amd64/spin.S \
@@ -20,7 +20,6 @@ S += amd64/intr_stub.S \
 		 amd64/syscallentry.S
 
 o += amd64/bootmain.o \
-		 amd64/init.o \
 		 amd64/io.o \
 		 amd64/debug.o \
 		 amd64/spin_lock.o \
@@ -37,4 +36,5 @@ o += amd64/bootmain.o \
 		 amd64/sched1.o \
 		 amd64/proc.o \
 		 amd64/syscall.o \
-		 amd64/syscallentry.o
+		 amd64/syscallentry.o \
+		 amd64/gdt.o