blob: 36f06539824304db22bc8f67a97e2b6034470026 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/arch/mips/kernel/proc.c
3 *
4 * Copyright (C) 1995, 1996, 2001 Ralf Baechle
Ralf Baechle41943182005-05-05 16:45:59 +00005 * Copyright (C) 2001, 2004 MIPS Technologies, Inc.
6 * Copyright (C) 2004 Maciej W. Rozycki
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07008#include <linux/delay.h>
9#include <linux/kernel.h>
10#include <linux/sched.h>
11#include <linux/seq_file.h>
12#include <asm/bootinfo.h>
13#include <asm/cpu.h>
14#include <asm/cpu-features.h>
15#include <asm/mipsregs.h>
16#include <asm/processor.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18unsigned int vced_count, vcei_count;
19
Linus Torvalds1da177e2005-04-16 15:20:36 -070020static int show_cpuinfo(struct seq_file *m, void *v)
21{
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 unsigned long n = (unsigned long) v - 1;
Karl-Johan Karlsson31aa3662006-10-08 01:15:02 +020023 unsigned int version = cpu_data[n].processor_id;
24 unsigned int fp_vers = cpu_data[n].fpu_id;
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 char fmt [64];
26
27#ifdef CONFIG_SMP
28 if (!cpu_isset(n, cpu_online_map))
29 return 0;
30#endif
31
32 /*
33 * For the first processor also print the system type
34 */
35 if (n == 0)
36 seq_printf(m, "system type\t\t: %s\n", get_system_type());
37
38 seq_printf(m, "processor\t\t: %ld\n", n);
39 sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
Atsushi Nemotoe04582b2006-10-09 00:10:01 +090040 cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : "");
Ralf Baechle9966db252007-10-11 23:46:17 +010041 seq_printf(m, fmt, __cpu_name[smp_processor_id()],
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 (version >> 4) & 0x0f, version & 0x0f,
43 (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
44 seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n",
Ralf Baechle0ac35482005-02-21 21:34:24 +000045 cpu_data[n].udelay_val / (500000/HZ),
46 (cpu_data[n].udelay_val / (5000/HZ)) % 100);
Linus Torvalds1da177e2005-04-16 15:20:36 -070047 seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
48 seq_printf(m, "microsecond timers\t: %s\n",
49 cpu_has_counter ? "yes" : "no");
Karl-Johan Karlsson31aa3662006-10-08 01:15:02 +020050 seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 seq_printf(m, "extra interrupt vector\t: %s\n",
52 cpu_has_divec ? "yes" : "no");
53 seq_printf(m, "hardware watchpoint\t: %s\n",
54 cpu_has_watch ? "yes" : "no");
Ralf Baechlee0278022005-08-16 16:39:15 +000055 seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n",
Ralf Baechle41943182005-05-05 16:45:59 +000056 cpu_has_mips16 ? " mips16" : "",
57 cpu_has_mdmx ? " mdmx" : "",
58 cpu_has_mips3d ? " mips3d" : "",
Ralf Baechlee0278022005-08-16 16:39:15 +000059 cpu_has_smartmips ? " smartmips" : "",
60 cpu_has_dsp ? " dsp" : "",
61 cpu_has_mipsmt ? " mt" : ""
62 );
Ralf Baechlef6771db2007-11-08 18:02:29 +000063 seq_printf(m, "shadow register sets\t: %d\n",
64 cpu_data[n].srsets);
Ralf Baechle0ab7aef2007-03-02 20:42:04 +000065 seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
67 sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
68 cpu_has_vce ? "%u" : "not available");
69 seq_printf(m, fmt, 'D', vced_count);
70 seq_printf(m, fmt, 'I', vcei_count);
Martin Michlmayr17256052006-03-20 02:51:20 +000071 seq_printf(m, "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070072
73 return 0;
74}
75
76static void *c_start(struct seq_file *m, loff_t *pos)
77{
78 unsigned long i = *pos;
79
80 return i < NR_CPUS ? (void *) (i + 1) : NULL;
81}
82
83static void *c_next(struct seq_file *m, void *v, loff_t *pos)
84{
85 ++*pos;
86 return c_start(m, pos);
87}
88
89static void c_stop(struct seq_file *m, void *v)
90{
91}
92
Jan Engelhardt12323ca2008-01-22 20:42:33 +010093const struct seq_operations cpuinfo_op = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 .start = c_start,
95 .next = c_next,
96 .stop = c_stop,
97 .show = show_cpuinfo,
98};