Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/mips/kernel/proc.c |
| 3 | * |
| 4 | * Copyright (C) 1995, 1996, 2001 Ralf Baechle |
Ralf Baechle | 4194318 | 2005-05-05 16:45:59 +0000 | [diff] [blame] | 5 | * Copyright (C) 2001, 2004 MIPS Technologies, Inc. |
| 6 | * Copyright (C) 2004 Maciej W. Rozycki |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
| 13 | #include <asm/cpu.h> |
| 14 | #include <asm/cpu-features.h> |
| 15 | #include <asm/mipsregs.h> |
| 16 | #include <asm/processor.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | |
| 18 | unsigned int vced_count, vcei_count; |
| 19 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | static int show_cpuinfo(struct seq_file *m, void *v) |
| 21 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | unsigned long n = (unsigned long) v - 1; |
Karl-Johan Karlsson | 31aa366 | 2006-10-08 01:15:02 +0200 | [diff] [blame] | 23 | unsigned int version = cpu_data[n].processor_id; |
| 24 | unsigned int fp_vers = cpu_data[n].fpu_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | 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 Nemoto | e04582b | 2006-10-09 00:10:01 +0900 | [diff] [blame] | 40 | cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : ""); |
Ralf Baechle | 9966db25 | 2007-10-11 23:46:17 +0100 | [diff] [blame] | 41 | seq_printf(m, fmt, __cpu_name[smp_processor_id()], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | (version >> 4) & 0x0f, version & 0x0f, |
| 43 | (fp_vers >> 4) & 0x0f, fp_vers & 0x0f); |
| 44 | seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n", |
Ralf Baechle | 0ac3548 | 2005-02-21 21:34:24 +0000 | [diff] [blame] | 45 | cpu_data[n].udelay_val / (500000/HZ), |
| 46 | (cpu_data[n].udelay_val / (5000/HZ)) % 100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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"); |
Karl-Johan Karlsson | 31aa366 | 2006-10-08 01:15:02 +0200 | [diff] [blame] | 50 | seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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"); |
Ralf Baechle | e027802 | 2005-08-16 16:39:15 +0000 | [diff] [blame] | 55 | seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n", |
Ralf Baechle | 4194318 | 2005-05-05 16:45:59 +0000 | [diff] [blame] | 56 | cpu_has_mips16 ? " mips16" : "", |
| 57 | cpu_has_mdmx ? " mdmx" : "", |
| 58 | cpu_has_mips3d ? " mips3d" : "", |
Ralf Baechle | e027802 | 2005-08-16 16:39:15 +0000 | [diff] [blame] | 59 | cpu_has_smartmips ? " smartmips" : "", |
| 60 | cpu_has_dsp ? " dsp" : "", |
| 61 | cpu_has_mipsmt ? " mt" : "" |
| 62 | ); |
Ralf Baechle | f6771db | 2007-11-08 18:02:29 +0000 | [diff] [blame] | 63 | seq_printf(m, "shadow register sets\t: %d\n", |
| 64 | cpu_data[n].srsets); |
Ralf Baechle | 0ab7aef | 2007-03-02 20:42:04 +0000 | [diff] [blame] | 65 | seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
| 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 Michlmayr | 1725605 | 2006-03-20 02:51:20 +0000 | [diff] [blame] | 71 | seq_printf(m, "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 76 | static 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 | |
| 83 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) |
| 84 | { |
| 85 | ++*pos; |
| 86 | return c_start(m, pos); |
| 87 | } |
| 88 | |
| 89 | static void c_stop(struct seq_file *m, void *v) |
| 90 | { |
| 91 | } |
| 92 | |
Jan Engelhardt | 12323ca | 2008-01-22 20:42:33 +0100 | [diff] [blame] | 93 | const struct seq_operations cpuinfo_op = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | .start = c_start, |
| 95 | .next = c_next, |
| 96 | .stop = c_stop, |
| 97 | .show = show_cpuinfo, |
| 98 | }; |