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 struct sgi_crime __iomem *crime;
  22 struct sgi_mace __iomem *mace;
  23
  24 EXPORT_SYMBOL_GPL(mace);
  25
  26 void __init crime_init(void)
  27 {
  28         unsigned int id, rev;
  29         const int field = 2 * sizeof(unsigned long);
  30
  31         set_io_port_base((unsigned long) ioremap(MACEPCI_LOW_IO, 0x2000000));
  32         crime = ioremap(CRIME_BASE, sizeof(struct sgi_crime));
  33         mace = ioremap(MACE_BASE, sizeof(struct sgi_mace));
  34
  35         id = crime->id;
  36         rev = id & CRIME_ID_REV;
  37         id = (id & CRIME_ID_IDBITS) >> 4;
  38         printk(KERN_INFO "CRIME id %1x rev %d at 0x%0*lx\n",
  39                id, rev, field, (unsigned long) CRIME_BASE);
  40 }
  41
  42 irqreturn_t crime_memerr_intr(unsigned int irq, void *dev_id)
  43 {
  44         unsigned long stat, addr;
  45         int fatal = 0;
  46
  47         stat = crime->mem_error_stat & CRIME_MEM_ERROR_STAT_MASK;
  48         addr = crime->mem_error_addr & CRIME_MEM_ERROR_ADDR_MASK;
  49
  50         printk("CRIME memory error at 0x%08lx ST 0x%08lx<", addr, stat);
  51
  52         if (stat & CRIME_MEM_ERROR_INV)
  53                 printk("INV,");
  54         if (stat & CRIME_MEM_ERROR_ECC) {
  55                 unsigned long ecc_syn =
  56                         crime->mem_ecc_syn & CRIME_MEM_ERROR_ECC_SYN_MASK;
  57                 unsigned long ecc_gen =
  58                         crime->mem_ecc_chk & CRIME_MEM_ERROR_ECC_CHK_MASK;
  59                 printk("ECC,SYN=0x%08lx,GEN=0x%08lx,", ecc_syn, ecc_gen);
  60         }
  61         if (stat & CRIME_MEM_ERROR_MULTIPLE) {
  62                 fatal = 1;
  63                 printk("MULTIPLE,");
  64         }
  65         if (stat & CRIME_MEM_ERROR_HARD_ERR) {
  66                 fatal = 1;
  67                 printk("HARD,");
  68         }
  69         if (stat & CRIME_MEM_ERROR_SOFT_ERR)
  70                 printk("SOFT,");
  71         if (stat & CRIME_MEM_ERROR_CPU_ACCESS)
  72                 printk("CPU,");
  73         if (stat & CRIME_MEM_ERROR_VICE_ACCESS)
  74                 printk("VICE,");
  75         if (stat & CRIME_MEM_ERROR_GBE_ACCESS)
  76                 printk("GBE,");
  77         if (stat & CRIME_MEM_ERROR_RE_ACCESS)
  78                 printk("RE,REID=0x%02lx,", (stat & CRIME_MEM_ERROR_RE_ID)>>8);
  79         if (stat & CRIME_MEM_ERROR_MACE_ACCESS)
  80                 printk("MACE,MACEID=0x%02lx,", stat & CRIME_MEM_ERROR_MACE_ID);
  81
  82         crime->mem_error_stat = 0;
  83
  84         if (fatal) {
  85                 printk("FATAL>\n");
  86                 panic("Fatal memory error.");
  87         } else
  88                 printk("NONFATAL>\n");
  89
  90         return IRQ_HANDLED;
  91 }
  92
  93 irqreturn_t crime_cpuerr_intr(unsigned int irq, void *dev_id)
  94 {
  95         unsigned long stat = crime->cpu_error_stat & CRIME_CPU_ERROR_MASK;
  96         unsigned long addr = crime->cpu_error_addr & CRIME_CPU_ERROR_ADDR_MASK;
  97
  98         addr <<= 2;
  99         printk("CRIME CPU error at 0x%09lx status 0x%08lx\n", addr, stat);
 100         crime->cpu_error_stat = 0;
 101
 102         return IRQ_HANDLED;
 103 }