/* * linux/arch/mips/kernel/proc.c * * Copyright (C) 1995, 1996, 2001 Ralf Baechle * Copyright (C) 2001, 2004 MIPS Technologies, Inc. * Copyright (C) 2004 Maciej W. Rozycki */ #include <linux/delay.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/seq_file.h> #include <asm/bootinfo.h> #include <asm/cpu.h> #include <asm/cpu-features.h> #include <asm/mipsregs.h> #include <asm/processor.h> #include <asm/watch.h> unsigned int vced_count, vcei_count; static const char *cpu_name[] = { [CPU_UNKNOWN] = "unknown", [CPU_R2000] = "R2000", [CPU_R3000] = "R3000", [CPU_R3000A] = "R3000A", [CPU_R3041] = "R3041", [CPU_R3051] = "R3051", [CPU_R3052] = "R3052", [CPU_R3081] = "R3081", [CPU_R3081E] = "R3081E", [CPU_R4000PC] = "R4000PC", [CPU_R4000SC] = "R4000SC", [CPU_R4000MC] = "R4000MC", [CPU_R4200] = "R4200", [CPU_R4400PC] = "R4400PC", [CPU_R4400SC] = "R4400SC", [CPU_R4400MC] = "R4400MC", [CPU_R4600] = "R4600", [CPU_R6000] = "R6000", [CPU_R6000A] = "R6000A", [CPU_R8000] = "R8000", [CPU_R10000] = "R10000", [CPU_R12000] = "R12000", [CPU_R14000] = "R14000", [CPU_R4300] = "R4300", [CPU_R4650] = "R4650", [CPU_R4700] = "R4700", [CPU_R5000] = "R5000", [CPU_R5000A] = "R5000A", [CPU_R4640] = "R4640", [CPU_NEVADA] = "Nevada", [CPU_RM7000] = "RM7000", [CPU_RM9000] = "RM9000", [CPU_R5432] = "R5432", [CPU_4KC] = "MIPS 4Kc", [CPU_5KC] = "MIPS 5Kc", [CPU_R4310] = "R4310", [CPU_SB1] = "SiByte SB1", [CPU_SB1A] = "SiByte SB1A", [CPU_TX3912] = "TX3912", [CPU_TX3922] = "TX3922", [CPU_TX3927] = "TX3927", [CPU_AU1000] = "Au1000", [CPU_AU1500] = "Au1500", [CPU_AU1100] = "Au1100", [CPU_AU1550] = "Au1550", [CPU_AU1200] = "Au1200", [CPU_4KEC] = "MIPS 4KEc", [CPU_4KSC] = "MIPS 4KSc", [CPU_VR41XX] = "NEC Vr41xx", [CPU_R5500] = "R5500", [CPU_TX49XX] = "TX49xx", [CPU_20KC] = "MIPS 20Kc", [CPU_24K] = "MIPS 24K", [CPU_25KF] = "MIPS 25Kf", [CPU_34K] = "MIPS 34K", [CPU_74K] = "MIPS 74K", [CPU_VR4111] = "NEC VR4111", [CPU_VR4121] = "NEC VR4121", [CPU_VR4122] = "NEC VR4122", [CPU_VR4131] = "NEC VR4131", [CPU_VR4133] = "NEC VR4133", [CPU_VR4181] = "NEC VR4181", [CPU_VR4181A] = "NEC VR4181A", [CPU_SR71000] = "Sandcraft SR71000", [CPU_PR4450] = "Philips PR4450", }; static int show_cpuinfo(struct seq_file *m, void *v) { unsigned long n = (unsigned long) v - 1; unsigned int version = cpu_data[n].processor_id; unsigned int fp_vers = cpu_data[n].fpu_id; char fmt [64]; #ifdef CONFIG_SMP if (!cpu_isset(n, cpu_online_map)) return 0; #endif /* * For the first processor also print the system type */ if (n == 0) seq_printf(m, "system type\t\t: %s\n", get_system_type()); seq_printf(m, "processor\t\t: %ld\n", n); sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n", cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : ""); seq_printf(m, fmt, cpu_name[cpu_data[n].cputype <= CPU_LAST ? cpu_data[n].cputype : CPU_UNKNOWN], (version >> 4) & 0x0f, version & 0x0f, (fp_vers >> 4) & 0x0f, fp_vers & 0x0f); seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n", cpu_data[n].udelay_val / (500000/HZ), (cpu_data[n].udelay_val / (5000/HZ)) % 100); seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no"); seq_printf(m, "microsecond timers\t: %s\n", cpu_has_counter ? "yes" : "no"); seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize); seq_printf(m, "extra interrupt vector\t: %s\n", cpu_has_divec ? "yes" : "no"); seq_printf(m, "hardware watchpoint\t: %s\n", cpu_has_watch ? "yes" : "no"); seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n", cpu_has_mips16 ? " mips16" : "", cpu_has_mdmx ? " mdmx" : "", cpu_has_mips3d ? " mips3d" : "", cpu_has_smartmips ? " smartmips" : "", cpu_has_dsp ? " dsp" : "", cpu_has_mipsmt ? " mt" : "" ); sprintf(fmt, "VCE%%c exceptions\t\t: %s\n", cpu_has_vce ? "%u" : "not available"); seq_printf(m, fmt, 'D', vced_count); seq_printf(m, fmt, 'I', vcei_count); seq_printf(m, "\n"); return 0; } static void *c_start(struct seq_file *m, loff_t *pos) { unsigned long i = *pos; return i < NR_CPUS ? (void *) (i + 1) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) { ++*pos; return c_start(m, pos); } static void c_stop(struct seq_file *m, void *v) { } struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop, .show = show_cpuinfo, };