2 * linux/arch/mips/kernel/proc.c
4 * Copyright (C) 1995, 1996, 2001 Ralf Baechle
5 * Copyright (C) 2001, 2004 MIPS Technologies, Inc.
6 * Copyright (C) 2004 Maciej W. Rozycki
8 #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>
14 #include <asm/cpu-features.h>
15 #include <asm/mipsregs.h>
16 #include <asm/processor.h>
18 unsigned int vced_count, vcei_count;
20 static int show_cpuinfo(struct seq_file *m, void *v)
22 unsigned long n = (unsigned long) v - 1;
23 unsigned int version = cpu_data[n].processor_id;
24 unsigned int fp_vers = cpu_data[n].fpu_id;
28 if (!cpu_isset(n, cpu_online_map))
33 * For the first processor also print the system type
36 seq_printf(m, "system type\t\t: %s\n", get_system_type());
38 seq_printf(m, "processor\t\t: %ld\n", n);
39 sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
40 cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : "");
41 seq_printf(m, fmt, __cpu_name[smp_processor_id()],
42 (version >> 4) & 0x0f, version & 0x0f,
43 (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
44 seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n",
45 cpu_data[n].udelay_val / (500000/HZ),
46 (cpu_data[n].udelay_val / (5000/HZ)) % 100);
47 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");
50 seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
51 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");
55 seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n",
56 cpu_has_mips16 ? " mips16" : "",
57 cpu_has_mdmx ? " mdmx" : "",
58 cpu_has_mips3d ? " mips3d" : "",
59 cpu_has_smartmips ? " smartmips" : "",
60 cpu_has_dsp ? " dsp" : "",
61 cpu_has_mipsmt ? " mt" : ""
64 sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
65 cpu_has_vce ? "%u" : "not available");
66 seq_printf(m, fmt, 'D', vced_count);
67 seq_printf(m, fmt, 'I', vcei_count);
73 static void *c_start(struct seq_file *m, loff_t *pos)
75 unsigned long i = *pos;
77 return i < NR_CPUS ? (void *) (i + 1) : NULL;
80 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
83 return c_start(m, pos);
86 static void c_stop(struct seq_file *m, void *v)
90 struct seq_operations cpuinfo_op = {