1 /* 2 * linux/arch/mips/kernel/proc.c 3 * 4 * Copyright (C) 1995, 1996, 2001 Ralf Baechle 5 * Copyright (C) 2001, 2004 MIPS Technologies, Inc. 6 * Copyright (C) 2004 Maciej W. Rozycki 7 */ 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> 17 18 unsigned int vced_count, vcei_count; 19 20 static int show_cpuinfo(struct seq_file *m, void *v) 21 { 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; 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", 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" : "" 62 ); 63 seq_printf(m, "shadow register sets\t: %d\n", 64 cpu_data[n].srsets); 65 seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core); 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); 71 seq_printf(m, "\n"); 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 93 const struct seq_operations cpuinfo_op = { 94 .start = c_start, 95 .next = c_next, 96 .stop = c_stop, 97 .show = show_cpuinfo, 98 }; 99