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/* SPDX-License-Identifier: copyleft-next-0.3.1 */
/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
#ifndef KMI_ARCH_CPU_H
#define KMI_ARCH_CPU_H
/**
* @file cpu.h
* Arch-specific cpu handling, generally implemented in
* arch/whatever/kernel/cpu.c
*/
#include <kmi/types.h>
#include <kmi/tcb.h>
#if defined(__riscv)
# if __riscv_xlen == 64
#include "../../arch/riscv64/include/cpu.h"
# else
#include "../../arch/riscv32/include/cpu.h"
# endif
#endif
/**
* Get current CPU ID.
* ID must be in range \c 0 .. \c num_cpus, where \c num_cpus is the number of
* cpus on this system.
*
* @return Current CPU ID.
*/
id_t cpu_id();
/**
* Assign tcb to current cpu.
* Essentially sets t->cpu_id to the cpu id, plus whatever the arch needs.
*
* @param t \ref tcb to assign to current cpu.
*/
void cpu_assign(struct tcb *t);
/**
* Send inter-processor interrupt to cpu \p cpu_id.
*
* @param cpu_id CPU to send ipi to.
*/
void cpu_send_ipi(id_t cpu_id);
#endif /* KMI_ARCH_CPU_H */
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