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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/sgi-ip32/crime.c
10818 views
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/*

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 * This file is subject to the terms and conditions of the GNU General Public

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 * License.  See the file "COPYING" in the main directory of this archive

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 * for more details.

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 *

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 * Copyright (C) 2001, 2003 Keith M Wesolowski

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 * Copyright (C) 2005 Ilya A. Volynets <[email protected]>

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 */

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#include <linux/types.h>

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#include <linux/init.h>

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#include <linux/kernel.h>

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#include <linux/interrupt.h>

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#include <linux/module.h>

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#include <asm/bootinfo.h>

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#include <asm/io.h>

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#include <asm/mipsregs.h>

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#include <asm/page.h>

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#include <asm/ip32/crime.h>

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#include <asm/ip32/mace.h>

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struct sgi_crime __iomem *crime;

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struct sgi_mace __iomem *mace;

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EXPORT_SYMBOL_GPL(mace);

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void __init crime_init(void)

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{

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	unsigned int id, rev;

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	const int field = 2 * sizeof(unsigned long);

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	set_io_port_base((unsigned long) ioremap(MACEPCI_LOW_IO, 0x2000000));

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	crime = ioremap(CRIME_BASE, sizeof(struct sgi_crime));

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	mace = ioremap(MACE_BASE, sizeof(struct sgi_mace));

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	id = crime->id;

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	rev = id & CRIME_ID_REV;

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	id = (id & CRIME_ID_IDBITS) >> 4;

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	printk(KERN_INFO "CRIME id %1x rev %d at 0x%0*lx\n",

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	       id, rev, field, (unsigned long) CRIME_BASE);

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}

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irqreturn_t crime_memerr_intr(unsigned int irq, void *dev_id)

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{

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	unsigned long stat, addr;

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	int fatal = 0;

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	stat = crime->mem_error_stat & CRIME_MEM_ERROR_STAT_MASK;

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	addr = crime->mem_error_addr & CRIME_MEM_ERROR_ADDR_MASK;

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

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	if (stat & CRIME_MEM_ERROR_INV)

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		printk("INV,");

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	if (stat & CRIME_MEM_ERROR_ECC) {

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		unsigned long ecc_syn =

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			crime->mem_ecc_syn & CRIME_MEM_ERROR_ECC_SYN_MASK;

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		unsigned long ecc_gen =

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			crime->mem_ecc_chk & CRIME_MEM_ERROR_ECC_CHK_MASK;

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		printk("ECC,SYN=0x%08lx,GEN=0x%08lx,", ecc_syn, ecc_gen);

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	}

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	if (stat & CRIME_MEM_ERROR_MULTIPLE) {

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		fatal = 1;

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		printk("MULTIPLE,");

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	}

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	if (stat & CRIME_MEM_ERROR_HARD_ERR) {

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		fatal = 1;

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		printk("HARD,");

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	}

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	if (stat & CRIME_MEM_ERROR_SOFT_ERR)

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		printk("SOFT,");

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	if (stat & CRIME_MEM_ERROR_CPU_ACCESS)

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		printk("CPU,");

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	if (stat & CRIME_MEM_ERROR_VICE_ACCESS)

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		printk("VICE,");

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	if (stat & CRIME_MEM_ERROR_GBE_ACCESS)

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		printk("GBE,");

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	if (stat & CRIME_MEM_ERROR_RE_ACCESS)

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		printk("RE,REID=0x%02lx,", (stat & CRIME_MEM_ERROR_RE_ID)>>8);

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	if (stat & CRIME_MEM_ERROR_MACE_ACCESS)

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		printk("MACE,MACEID=0x%02lx,", stat & CRIME_MEM_ERROR_MACE_ID);

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	crime->mem_error_stat = 0;

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	if (fatal) {

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		printk("FATAL>\n");

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		panic("Fatal memory error.");

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	} else

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		printk("NONFATAL>\n");

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	return IRQ_HANDLED;

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}

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irqreturn_t crime_cpuerr_intr(unsigned int irq, void *dev_id)

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{

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	unsigned long stat = crime->cpu_error_stat & CRIME_CPU_ERROR_MASK;

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	unsigned long addr = crime->cpu_error_addr & CRIME_CPU_ERROR_ADDR_MASK;

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	addr <<= 2;

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	printk("CRIME CPU error at 0x%09lx status 0x%08lx\n", addr, stat);

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	crime->cpu_error_stat = 0;

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	return IRQ_HANDLED;

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}

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