1/* 2 * Copyright (C) 1995, 1996, 2001 Ralf Baechle 3 * Copyright (C) 2001, 2004 MIPS Technologies, Inc. 4 * Copyright (C) 2004 Maciej W. Rozycki 5 */ 6#include <linux/delay.h> 7#include <linux/kernel.h> 8#include <linux/sched.h> 9#include <linux/seq_file.h> 10#include <asm/bootinfo.h> 11#include <asm/cpu.h> 12#include <asm/cpu-features.h> 13#include <asm/mipsregs.h> 14#include <asm/processor.h> 15 16unsigned int vced_count, vcei_count; 17 18static int show_cpuinfo(struct seq_file *m, void *v) 19{ 20 unsigned long n = (unsigned long) v - 1; 21 unsigned int version = cpu_data[n].processor_id; 22 unsigned int fp_vers = cpu_data[n].fpu_id; 23 char fmt [64]; 24 int i; 25 26#ifdef CONFIG_SMP 27 if (!cpu_isset(n, cpu_online_map)) 28 return 0; 29#endif 30 31 /* 32 * For the first processor also print the system type 33 */ 34 if (n == 0) 35 seq_printf(m, "system type\t\t: %s\n", get_system_type()); 36 37 seq_printf(m, "processor\t\t: %ld\n", n); 38 sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n", 39 cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : ""); 40 seq_printf(m, fmt, __cpu_name[n], 41 (version >> 4) & 0x0f, version & 0x0f, 42 (fp_vers >> 4) & 0x0f, fp_vers & 0x0f); 43 seq_printf(m, "BogoMIPS\t\t: %u.%02u\n", 44 cpu_data[n].udelay_val / (500000/HZ), 45 (cpu_data[n].udelay_val / (5000/HZ)) % 100); 46 seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no"); 47 seq_printf(m, "microsecond timers\t: %s\n", 48 cpu_has_counter ? "yes" : "no"); 49 seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize); 50 seq_printf(m, "extra interrupt vector\t: %s\n", 51 cpu_has_divec ? "yes" : "no"); 52 seq_printf(m, "hardware watchpoint\t: %s", 53 cpu_has_watch ? "yes, " : "no\n"); 54 if (cpu_has_watch) { 55 seq_printf(m, "count: %d, address/irw mask: [", 56 cpu_data[n].watch_reg_count); 57 for (i = 0; i < cpu_data[n].watch_reg_count; i++) 58 seq_printf(m, "%s0x%04x", i ? ", " : "" , 59 cpu_data[n].watch_reg_masks[i]); 60 seq_printf(m, "]\n"); 61 } 62 seq_printf(m, "microMIPS\t\t: %s\n", cpu_has_mmips ? "yes" : "no"); 63 seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n", 64 cpu_has_mips16 ? " mips16" : "", 65 cpu_has_mdmx ? " mdmx" : "", 66 cpu_has_mips3d ? " mips3d" : "", 67 cpu_has_smartmips ? " smartmips" : "", 68 cpu_has_dsp ? " dsp" : "", 69 cpu_has_mipsmt ? " mt" : "" 70 ); 71 seq_printf(m, "shadow register sets\t: %d\n", 72 cpu_data[n].srsets); 73 seq_printf(m, "kscratch registers\t: %d\n", 74 hweight8(cpu_data[n].kscratch_mask)); 75 seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core); 76 77 sprintf(fmt, "VCE%%c exceptions\t\t: %s\n", 78 cpu_has_vce ? "%u" : "not available"); 79 seq_printf(m, fmt, 'D', vced_count); 80 seq_printf(m, fmt, 'I', vcei_count); 81 seq_printf(m, "\n"); 82 83 return 0; 84} 85 86static void *c_start(struct seq_file *m, loff_t *pos) 87{ 88 unsigned long i = *pos; 89 90 return i < NR_CPUS ? (void *) (i + 1) : NULL; 91} 92 93static void *c_next(struct seq_file *m, void *v, loff_t *pos) 94{ 95 ++*pos; 96 return c_start(m, pos); 97} 98 99static void c_stop(struct seq_file *m, void *v) 100{ 101} 102 103const struct seq_operations cpuinfo_op = { 104 .start = c_start, 105 .next = c_next, 106 .stop = c_stop, 107 .show = show_cpuinfo, 108}; 109