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 <asm/bootinfo.h>
  14 #include <asm/io.h>
  15 #include <asm/mipsregs.h>
  16 #include <asm/ptrace.h>
  17 #include <asm/page.h>
  18 #include <asm/ip32/crime.h>
  19 #include <asm/ip32/mace.h>
  20
  21 struct sgi_crime *crime;
  22 struct sgi_mace *mace;
  23
  24 void __init crime_init(void)
  25 {
  26         unsigned int id, rev;
  27         const int field = 2 * sizeof(unsigned long);
  28
  29         set_io_port_base((unsigned long) ioremap(MACEPCI_LOW_IO, 0x2000000));
  30         crime = ioremap(CRIME_BASE, sizeof(struct sgi_crime));
  31         mace = ioremap(MACE_BASE, sizeof(struct sgi_mace));
  32
  33         id = crime->id;
  34         rev = id & CRIME_ID_REV;
  35         id = (id & CRIME_ID_IDBITS) >> 4;
  36         printk (KERN_INFO "CRIME id %1x rev %d at 0x%0*lx\n",
  37                 id, rev, field, (unsigned long) CRIME_BASE);
  38 }
  39
  40 irqreturn_t
  41 crime_memerr_intr (unsigned int irq, void *dev_id, struct pt_regs *regs)
  42 {
  43         unsigned long stat, addr;
  44         int fatal = 0;
  45
  46         stat = crime->mem_error_stat & CRIME_MEM_ERROR_STAT_MASK;
  47         addr = crime->mem_error_addr & CRIME_MEM_ERROR_ADDR_MASK;
  48
  49         printk("CRIME memory error at 0x%08lx ST 0x%08lx<", addr, stat);
  50
  51         if (stat & CRIME_MEM_ERROR_INV)
  52                 printk("INV,");
  53         if (stat & CRIME_MEM_ERROR_ECC) {
  54                 unsigned long ecc_syn =
  55                         crime->mem_ecc_syn & CRIME_MEM_ERROR_ECC_SYN_MASK;
  56                 unsigned long ecc_gen =
  57                         crime->mem_ecc_chk & CRIME_MEM_ERROR_ECC_CHK_MASK;
  58                 printk("ECC,SYN=0x%08lx,GEN=0x%08lx,", ecc_syn, ecc_gen);
  59         }
  60         if (stat & CRIME_MEM_ERROR_MULTIPLE) {
  61                 fatal = 1;
  62                 printk("MULTIPLE,");
  63         }
  64         if (stat & CRIME_MEM_ERROR_HARD_ERR) {
  65                 fatal = 1;
  66                 printk("HARD,");
  67         }
  68         if (stat & CRIME_MEM_ERROR_SOFT_ERR)
  69                 printk("SOFT,");
  70         if (stat & CRIME_MEM_ERROR_CPU_ACCESS)
  71                 printk("CPU,");
  72         if (stat & CRIME_MEM_ERROR_VICE_ACCESS)
  73                 printk("VICE,");
  74         if (stat & CRIME_MEM_ERROR_GBE_ACCESS)
  75                 printk("GBE,");
  76         if (stat & CRIME_MEM_ERROR_RE_ACCESS)
  77                 printk("RE,REID=0x%02lx,", (stat & CRIME_MEM_ERROR_RE_ID)>>8);
  78         if (stat & CRIME_MEM_ERROR_MACE_ACCESS)
  79                 printk("MACE,MACEID=0x%02lx,", stat & CRIME_MEM_ERROR_MACE_ID);
  80
  81         crime->mem_error_stat = 0;
  82
  83         if (fatal) {
  84                 printk("FATAL>\n");
  85                 panic("Fatal memory error.");
  86         } else
  87                 printk("NONFATAL>\n");
  88
  89         return IRQ_HANDLED;
  90 }
  91
  92 irqreturn_t
  93 crime_cpuerr_intr (unsigned int irq, void *dev_id, struct pt_regs *regs)
  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 }