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mop3/kernel/amd64/smp.h
kamkow1 7bb3b77ede
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Disable kernel preemption, fix requesting rescheduling
2026-01-22 19:32:15 +01:00

43 lines
981 B
C

#ifndef _KERNEL_AMD64_SMP_H
#define _KERNEL_AMD64_SMP_H
#include <amd64/gdt.h>
#include <amd64/intr.h>
#include <amd64/tss.h>
#include <aux/compiler.h>
#include <libk/rbtree.h>
#include <libk/std.h>
#include <proc/proc.h>
#include <sync/spin_lock.h>
#define CPUS_MAX 32
struct cpu {
/* for syscall instruction */
uintptr_t syscall_user_stack;
uintptr_t syscall_kernel_stack;
volatile uint8_t kernel_stack[KSTACK_SIZE] ALIGNED (16);
volatile uint8_t except_stack[KSTACK_SIZE] ALIGNED (16);
volatile uint8_t irq_stack[KSTACK_SIZE] ALIGNED (16);
volatile struct gdt_extended gdt ALIGNED (16);
volatile struct tss tss;
struct saved_regs regs;
uintptr_t lapic_mmio_base;
uint64_t lapic_ticks;
uint32_t id;
spin_lock_t lock;
struct list_node_link* proc_run_q;
struct proc* proc_current;
};
struct cpu* cpu_make (void);
struct cpu* cpu_get (void);
void cpu_request_sched (struct cpu* cpu);
#define thiscpu (cpu_get ())
#endif // _KERNEL_AMD64_SMP_H