cpu/generic_cpu/gcpu_main.c

	gcpu_main.c revision 7aec1d6e253b21f9e9b7ef68b4d81ab9859b51fe
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * Generic x86 CPU Module
 *
 * This CPU module is used for generic x86 CPUs when Solaris has no other
 * CPU-specific support module available.  Code in this module should be the
 * absolute bare-bones support and must be cognizant of both Intel and AMD etc.
 */

#include <sys/types.h>
#include <sys/cpu_module_impl.h>
#include <sys/cpuvar.h>
#include <sys/kmem.h>
#include <sys/modctl.h>

#include "gcpu.h"

/*ARGSUSED*/
static void
gcpu_nop(void *data)
{
}

static int
gcpu_notsup(void)
{
    return (ENOTSUP);
}

static int
gcpu_nil(void)
{
    return (0);
}

/*ARGSUSED*/
static int
gcpu_init(cpu_t *cpu, void **datap)
{
    *datap = kmem_zalloc(sizeof (gcpu_data_t), KM_SLEEP);
    return (0);
}

static void
gcpu_fini(void *data)
{
    gcpu_data_t *dp = data;

    kmem_free(dp->gcpu_mca.gcpu_mca_data,
        dp->gcpu_mca.gcpu_mca_nbanks * sizeof (gcpu_mca_data_t));

    kmem_free(dp, sizeof (gcpu_data_t));
}

const cmi_ops_t _cmi_ops = {
    gcpu_init,      /* cmi_init */
    gcpu_nop,       /* cmi_post_init */
    gcpu_fini,      /* cmi_fini */
    gcpu_nop,       /* cmi_faulted_enter */
    gcpu_nop,       /* cmi_faulted_exit */
    (int (*)())gcpu_nil,    /* cmi_scrubber_enable */
    gcpu_mca_init,      /* cmi_mca_init */
    gcpu_mca_trap,      /* cmi_mca_trap */
    (int (*)())gcpu_notsup, /* cmi_mca_inject */
    gcpu_nop,       /* cmi_mca_poke */
    (void (*)())gcpu_nop,           /* cmi_mc_register */
    (const cmi_mc_ops_t *(*)())gcpu_nop /* cmi_mc_getops */
};

static struct modlcpu modlcpu = {
    &mod_cpuops,
    "Generic x86 CPU Module"
};

static struct modlinkage modlinkage = {
    MODREV_1,
    (void *)&modlcpu,
    NULL
};

int
_init(void)
{
    return (mod_install(&modlinkage));
}

int
_info(struct modinfo *modinfop)
{
    return (mod_info(&modlinkage, modinfop));
}

int
_fini(void)
{
    return (mod_remove(&modlinkage));
}