root/sys/arch/x86/x86/apic.c
/* $NetBSD: apic.c,v 1.10 2019/06/14 09:23:42 msaitoh Exp $ */

/*-
 * Copyright (c) 2000 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by RedBack Networks Inc.
 *
 * Author: Bill Sommerfeld
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: apic.c,v 1.10 2019/06/14 09:23:42 msaitoh Exp $");

#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>

#include <machine/i82489reg.h>
#include <machine/i82489var.h>
#include <machine/apicvar.h>

#define APICVTFMT "\177\20"                                             \
        "f\0\10vector\0"                                                \
        "f\10\3delmode\0" "=\0fixed\0" "=\1low\0" "=\2SMI\0" "=\4NMI\0" \
                        "=\5INIT\0" "=\6startup\0" "=\7ExtINT\0"        \
        "F\13\1\0" ":\0physical\0" ":\1logical\0"                       \
        "b\14pending\0"                                                 \
        "F\15\1\0" ":\0acthi\0" ":\1actlo\0"                            \
        "b\16irrpending\0"                                              \
        "F\17\1\0" ":\0edge\0" ":\1level\0"                             \
        "b\20masked\0"

static const char ioapicfmt[] = APICVTFMT
        "f\22\2dest\0" "=\1self\0" "=\2all\0" "=\3all-others\0";

static const char lapicfmt[] = APICVTFMT
        "f\21\2timer\0" "=\0oneshot\0" "=\1periodic\0" "=\2TSC-deadine\0";

static const char redirhifmt[] = "\177\20"
        "f\30\10target\0";

void
apic_format_redir(const char *where1, const char *where2, int idx, int type,
                uint32_t redirhi, uint32_t redirlo)
{
        char buf[256];

        snprintb(buf, sizeof(buf),
            type == APIC_VECTYPE_IOAPIC ? ioapicfmt : lapicfmt, redirlo);
        printf("%s: %s%d %s", where1, where2, idx, buf);

        if ((type == APIC_VECTYPE_IOAPIC)
            && ((redirlo & LAPIC_DEST_MASK) == 0)) {
                snprintb(buf, sizeof(buf), redirhifmt, redirhi);
                printf(" %s", buf);
        }

        printf("\n");
}