arch/mips/sgi-ip32/crime.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2001, 2003 Keith M Wesolowski
   7  * Copyright (C) 2005 Ilya A. Volynets <ilya@total-knowledge.com>
   8  */
   9 #include <linux/types.h>
  10 #include <linux/init.h>
  11 #include <linux/kernel.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/export.h>
  14 #include <asm/bootinfo.h>
  15 #include <asm/io.h>
  16 #include <asm/mipsregs.h>
  17 #include <asm/page.h>
  18 #include <asm/ip32/crime.h>
  19 #include <asm/ip32/mace.h>
  20
  21 #include "ip32-common.h"
  22
  23 struct sgi_crime __iomem *crime;
  24 struct sgi_mace __iomem *mace;
  25
  26 EXPORT_SYMBOL_GPL(mace);
  27
  28 void __init crime_init(void)
  29 {
  30         unsigned int id, rev;
  31         const int field = 2 * sizeof(unsigned long);
  32
  33         set_io_port_base((unsigned long) ioremap(MACEPCI_LOW_IO, 0x2000000));
  34         crime = ioremap(CRIME_BASE, sizeof(struct sgi_crime));
  35         mace = ioremap(MACE_BASE, sizeof(struct sgi_mace));
  36
  37         id = crime->id;
  38         rev = id & CRIME_ID_REV;
  39         id = (id & CRIME_ID_IDBITS) >> 4;
  40         printk(KERN_INFO "CRIME id %1x rev %d at 0x%0*lx\n",
  41                id, rev, field, (unsigned long) CRIME_BASE);
  42 }
  43
  44 irqreturn_t crime_memerr_intr(int irq, void *dev_id)
  45 {
  46         unsigned long stat, addr;
  47         int fatal = 0;
  48
  49         stat = crime->mem_error_stat & CRIME_MEM_ERROR_STAT_MASK;
  50         addr = crime->mem_error_addr & CRIME_MEM_ERROR_ADDR_MASK;
  51
  52         printk("CRIME memory error at 0x%08lx ST 0x%08lx<", addr, stat);
  53
  54         if (stat & CRIME_MEM_ERROR_INV)
  55                 printk("INV,");
  56         if (stat & CRIME_MEM_ERROR_ECC) {
  57                 unsigned long ecc_syn =
  58                         crime->mem_ecc_syn & CRIME_MEM_ERROR_ECC_SYN_MASK;
  59                 unsigned long ecc_gen =
  60                         crime->mem_ecc_chk & CRIME_MEM_ERROR_ECC_CHK_MASK;
  61                 printk("ECC,SYN=0x%08lx,GEN=0x%08lx,", ecc_syn, ecc_gen);
  62         }
  63         if (stat & CRIME_MEM_ERROR_MULTIPLE) {
  64                 fatal = 1;
  65                 printk("MULTIPLE,");
  66         }
  67         if (stat & CRIME_MEM_ERROR_HARD_ERR) {
  68                 fatal = 1;
  69                 printk("HARD,");
  70         }
  71         if (stat & CRIME_MEM_ERROR_SOFT_ERR)
  72                 printk("SOFT,");
  73         if (stat & CRIME_MEM_ERROR_CPU_ACCESS)
  74                 printk("CPU,");
  75         if (stat & CRIME_MEM_ERROR_VICE_ACCESS)
  76                 printk("VICE,");
  77         if (stat & CRIME_MEM_ERROR_GBE_ACCESS)
  78                 printk("GBE,");
  79         if (stat & CRIME_MEM_ERROR_RE_ACCESS)
  80                 printk("RE,REID=0x%02lx,", (stat & CRIME_MEM_ERROR_RE_ID)>>8);
  81         if (stat & CRIME_MEM_ERROR_MACE_ACCESS)
  82                 printk("MACE,MACEID=0x%02lx,", stat & CRIME_MEM_ERROR_MACE_ID);
  83
  84         crime->mem_error_stat = 0;
  85
  86         if (fatal) {
  87                 printk("FATAL>\n");
  88                 panic("Fatal memory error.");
  89         } else
  90                 printk("NONFATAL>\n");
  91
  92         return IRQ_HANDLED;
  93 }
  94
  95 irqreturn_t crime_cpuerr_intr(int irq, void *dev_id)
  96 {
  97         unsigned long stat = crime->cpu_error_stat & CRIME_CPU_ERROR_MASK;
  98         unsigned long addr = crime->cpu_error_addr & CRIME_CPU_ERROR_ADDR_MASK;
  99
 100         addr <<= 2;
 101         printk("CRIME CPU error at 0x%09lx status 0x%08lx\n", addr, stat);
 102         crime->cpu_error_stat = 0;
 103
 104         return IRQ_HANDLED;
 105 }