/* SPDX-License-Identifier: copyleft-next-0.3.1 */
/* Copyright 2023 Kim Kuparinen < kimi.h.kuparinen@gmail.com > */

#include <kmi/uapi.h>
#include <kmi/bkl.h>
#include <kmi/ipi.h>

/**
 * @file dispatch.c
 *
 * Interface between assembly and C for dispatching syscalls/IPIs.
 * In kmi, IPIs are a higher level concept and is not expected to be handled by
 * the underlying architecture. Instead, we only require that there is some way
 * to trigger an interrupt in some other core, and check if the interrupt was an
 * IPI or syscall in C.
 */

/**
 * Syscall/IPI handler.
 * If a syscall was triggered, parameters have the meaning they are given.
 * Otherwise, they are meaningless and unused.
 *
 * @param a Syscall number.
 * @param b Argument 0.
 * @param c Argument 1.
 * @param d Argument 2.
 * @param e Argument 3.
 * @param f Argument 4.
 *
 * Returns value of taken action.
 */
void dispatch(sys_arg_t a, sys_arg_t b, sys_arg_t c,
              sys_arg_t d, sys_arg_t e, sys_arg_t f)
{
	bkl_lock();
	handle_syscall(a, b, c, d, e, f, cur_tcb());
	bkl_unlock();
}