/*      $NetBSD: ka630.c,v 1.30 2010/12/14 23:44:49 matt Exp $  */
/*-
 * Copyright (c) 1982, 1988, 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *      @(#)ka630.c     7.8 (Berkeley) 5/9/91
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ka630.c,v 1.30 2010/12/14 23:44:49 matt Exp $");

#include "opt_cputype.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/cpu.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/time.h>

#include <machine/ka630.h>
#include <machine/clock.h>
#include <machine/vsbus.h>

static struct uvaxIIcpu *uvaxIIcpu_ptr;

static void ka630_conf(void);
static void ka630_memerr(void);
static int ka630_mchk(void *);
static void ka630_halt(void);
static void ka630_reboot(int);
static void ka630_clrf(void);

static const char * const ka630_devs[] = { "cpu", "uba", NULL };

const struct cpu_dep ka630_calls = {
        .cpu_mchk       = ka630_mchk,
        .cpu_memerr     = ka630_memerr,
        .cpu_conf       = ka630_conf,
        .cpu_gettime    = chip_gettime,
        .cpu_settime    = chip_settime,
        .cpu_vups       = 1,      /* ~VUPS */
        .cpu_scbsz      = 2,    /* SCB pages */
        .cpu_halt       = ka630_halt,
        .cpu_reboot     = ka630_reboot,
        .cpu_clrf       = ka630_clrf,
        .cpu_devs       = ka630_devs
};

/*
 * uvaxII_conf() is called by cpu_startup to do the cpu_specific setup.
 */
void
ka630_conf(void)
{
        curcpu()->ci_cpustr = "KA630, UV2";

        clk_adrshift = 0;       /* Addressed at short's... */
        clk_tweak = 0;          /* ...and no shifting */
        clk_page = (short *)vax_map_physmem((paddr_t)KA630CLK, 1);

        uvaxIIcpu_ptr = (void *)vax_map_physmem(VS_REGS, 1);

        /*
         * Enable memory parity error detection and clear error bits.
         */
        uvaxIIcpu_ptr->uvaxII_mser = (UVAXIIMSER_PEN | UVAXIIMSER_MERR |
            UVAXIIMSER_LEB);
}

/* log crd errors */
void
ka630_memerr(void)
{
        printf("memory err!\n");
}

#define NMC78032 10
const char * const mc78032[] = {
        0,              "immcr (fsd)",  "immcr (ssd)",  "fpu err 0",
        "fpu err 7",    "mmu st(tb)",   "mmu st(m=0)",  "pte in p0",
        "pte in p1",    "un intr id",
};

struct mc78032frame {
        int     mc63_bcnt;              /* byte count == 0xc */
        int     mc63_summary;           /* summary parameter */
        int     mc63_mrvaddr;           /* most recent vad */
        int     mc63_istate;            /* internal state */
        int     mc63_pc;                /* trapped pc */
        int     mc63_psl;               /* trapped psl */
};

int
ka630_mchk(void *cmcf)
{
        struct mc78032frame * const mcf = (struct mc78032frame *)cmcf;
        u_int type = mcf->mc63_summary;

        printf("machine check %x", type);
        if (type < NMC78032 && mc78032[type])
                printf(": %s", mc78032[type]);
        printf("\n\tvap %x istate %x pc %x psl %x\n",
            mcf->mc63_mrvaddr, mcf->mc63_istate,
            mcf->mc63_pc, mcf->mc63_psl);
        if (uvaxIIcpu_ptr && uvaxIIcpu_ptr->uvaxII_mser & UVAXIIMSER_MERR) {
                printf("\tmser=0x%lx ", uvaxIIcpu_ptr->uvaxII_mser);
                if (uvaxIIcpu_ptr->uvaxII_mser & UVAXIIMSER_CPUE)
                        printf("page=%ld", uvaxIIcpu_ptr->uvaxII_cear);
                if (uvaxIIcpu_ptr->uvaxII_mser & UVAXIIMSER_DQPE)
                        printf("page=%ld", uvaxIIcpu_ptr->uvaxII_dear);
                printf("\n");
        }
        return (-1);
}

void
ka630_halt(void)
{
        ((volatile struct ka630clock *)clk_page)->cpmbx = KA630CLK_DOTHIS|KA630CLK_HALT;
        __asm("halt");
}

void
ka630_reboot(int arg)
{
        ((volatile struct ka630clock *)clk_page)->cpmbx =
            KA630CLK_DOTHIS | KA630CLK_REBOOT;
}

/*
 * Clear restart and boot in progress flags in the CPMBX.
 */
void
ka630_clrf(void)
{
        short i = ((volatile struct ka630clock *)clk_page)->cpmbx;

        ((volatile struct ka630clock *)clk_page)->cpmbx = i & KA630CLK_LANG;
}