root/arch/mips/sgi-ip32/crime.c
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2001, 2003 Keith M Wesolowski
 * Copyright (C) 2005 Ilya A. Volynets <ilya@total-knowledge.com>
 */
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/export.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/mipsregs.h>
#include <asm/page.h>
#include <asm/ip32/crime.h>
#include <asm/ip32/mace.h>

#include "ip32-common.h"

struct sgi_crime __iomem *crime;
struct sgi_mace __iomem *mace;

EXPORT_SYMBOL_GPL(mace);

void __init crime_init(void)
{
        unsigned int id, rev;
        const int field = 2 * sizeof(unsigned long);

        set_io_port_base((unsigned long) ioremap(MACEPCI_LOW_IO, 0x2000000));
        crime = ioremap(CRIME_BASE, sizeof(struct sgi_crime));
        mace = ioremap(MACE_BASE, sizeof(struct sgi_mace));

        id = crime->id;
        rev = id & CRIME_ID_REV;
        id = (id & CRIME_ID_IDBITS) >> 4;
        printk(KERN_INFO "CRIME id %1x rev %d at 0x%0*lx\n",
               id, rev, field, (unsigned long) CRIME_BASE);
}

irqreturn_t crime_memerr_intr(int irq, void *dev_id)
{
        unsigned long stat, addr;
        int fatal = 0;

        stat = crime->mem_error_stat & CRIME_MEM_ERROR_STAT_MASK;
        addr = crime->mem_error_addr & CRIME_MEM_ERROR_ADDR_MASK;

        printk("CRIME memory error at 0x%08lx ST 0x%08lx<", addr, stat);

        if (stat & CRIME_MEM_ERROR_INV)
                printk("INV,");
        if (stat & CRIME_MEM_ERROR_ECC) {
                unsigned long ecc_syn =
                        crime->mem_ecc_syn & CRIME_MEM_ERROR_ECC_SYN_MASK;
                unsigned long ecc_gen =
                        crime->mem_ecc_chk & CRIME_MEM_ERROR_ECC_CHK_MASK;
                printk("ECC,SYN=0x%08lx,GEN=0x%08lx,", ecc_syn, ecc_gen);
        }
        if (stat & CRIME_MEM_ERROR_MULTIPLE) {
                fatal = 1;
                printk("MULTIPLE,");
        }
        if (stat & CRIME_MEM_ERROR_HARD_ERR) {
                fatal = 1;
                printk("HARD,");
        }
        if (stat & CRIME_MEM_ERROR_SOFT_ERR)
                printk("SOFT,");
        if (stat & CRIME_MEM_ERROR_CPU_ACCESS)
                printk("CPU,");
        if (stat & CRIME_MEM_ERROR_VICE_ACCESS)
                printk("VICE,");
        if (stat & CRIME_MEM_ERROR_GBE_ACCESS)
                printk("GBE,");
        if (stat & CRIME_MEM_ERROR_RE_ACCESS)
                printk("RE,REID=0x%02lx,", (stat & CRIME_MEM_ERROR_RE_ID)>>8);
        if (stat & CRIME_MEM_ERROR_MACE_ACCESS)
                printk("MACE,MACEID=0x%02lx,", stat & CRIME_MEM_ERROR_MACE_ID);

        crime->mem_error_stat = 0;

        if (fatal) {
                printk("FATAL>\n");
                panic("Fatal memory error.");
        } else
                printk("NONFATAL>\n");

        return IRQ_HANDLED;
}

irqreturn_t crime_cpuerr_intr(int irq, void *dev_id)
{
        unsigned long stat = crime->cpu_error_stat & CRIME_CPU_ERROR_MASK;
        unsigned long addr = crime->cpu_error_addr & CRIME_CPU_ERROR_ADDR_MASK;

        addr <<= 2;
        printk("CRIME CPU error at 0x%09lx status 0x%08lx\n", addr, stat);
        crime->cpu_error_stat = 0;

        return IRQ_HANDLED;
}