xref: /openbmc/linux/arch/mips/sgi-ip32/crime.c (revision 26dd3e4f)
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 
crime_init(void)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 
crime_memerr_intr(unsigned int irq,void * dev_id)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 
crime_cpuerr_intr(unsigned int irq,void * dev_id)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 }
104