diff options
Diffstat (limited to 'arch/mips/kernel/proc.c')
| -rw-r--r-- | arch/mips/kernel/proc.c | 196 |
1 files changed, 99 insertions, 97 deletions
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index 86fe15b273c..037a44d962f 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -1,11 +1,8 @@ /* - * 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 + * Copyright (C) 2004 Maciej W. Rozycki */ -#include <linux/config.h> #include <linux/delay.h> #include <linux/kernel.h> #include <linux/sched.h> @@ -13,129 +10,134 @@ #include <asm/bootinfo.h> #include <asm/cpu.h> #include <asm/cpu-features.h> +#include <asm/idle.h> #include <asm/mipsregs.h> #include <asm/processor.h> -#include <asm/watch.h> +#include <asm/prom.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_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_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", -}; +/* + * * No lock; only written during early bootup by CPU 0. + * */ +static RAW_NOTIFIER_HEAD(proc_cpuinfo_chain); +int __ref register_proc_cpuinfo_notifier(struct notifier_block *nb) +{ + return raw_notifier_chain_register(&proc_cpuinfo_chain, nb); +} + +int proc_cpuinfo_notifier_call_chain(unsigned long val, void *v) +{ + return raw_notifier_call_chain(&proc_cpuinfo_chain, val, v); +} static int show_cpuinfo(struct seq_file *m, void *v) { - unsigned int version = current_cpu_data.processor_id; - unsigned int fp_vers = current_cpu_data.fpu_id; + struct proc_cpuinfo_notifier_args proc_cpuinfo_notifier_args; 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]; + int i; #ifdef CONFIG_SMP - if (!cpu_isset(n, cpu_online_map)) + if (!cpu_online(n)) return 0; #endif /* * For the first processor also print the system type */ - if (n == 0) + if (n == 0) { seq_printf(m, "system type\t\t: %s\n", get_system_type()); + if (mips_get_machine_name()) + seq_printf(m, "machine\t\t\t: %s\n", + mips_get_machine_name()); + } seq_printf(m, "processor\t\t: %ld\n", n); sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n", - cpu_has_fpu ? " FPU V%d.%d" : ""); - seq_printf(m, fmt, cpu_name[current_cpu_data.cputype <= CPU_LAST ? - current_cpu_data.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); + cpu_data[n].options & MIPS_CPU_FPU ? " FPU V%d.%d" : ""); + seq_printf(m, fmt, __cpu_name[n], + (version >> 4) & 0x0f, version & 0x0f, + (fp_vers >> 4) & 0x0f, fp_vers & 0x0f); + seq_printf(m, "BogoMIPS\t\t: %u.%02u\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", current_cpu_data.tlbsize); + 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" : "" - ); + cpu_has_divec ? "yes" : "no"); + seq_printf(m, "hardware watchpoint\t: %s", + cpu_has_watch ? "yes, " : "no\n"); + if (cpu_has_watch) { + seq_printf(m, "count: %d, address/irw mask: [", + cpu_data[n].watch_reg_count); + for (i = 0; i < cpu_data[n].watch_reg_count; i++) + seq_printf(m, "%s0x%04x", i ? ", " : "" , + cpu_data[n].watch_reg_masks[i]); + seq_printf(m, "]\n"); + } + + seq_printf(m, "isa\t\t\t: mips1"); + if (cpu_has_mips_2) + seq_printf(m, "%s", " mips2"); + if (cpu_has_mips_3) + seq_printf(m, "%s", " mips3"); + if (cpu_has_mips_4) + seq_printf(m, "%s", " mips4"); + if (cpu_has_mips_5) + seq_printf(m, "%s", " mips5"); + if (cpu_has_mips32r1) + seq_printf(m, "%s", " mips32r1"); + if (cpu_has_mips32r2) + seq_printf(m, "%s", " mips32r2"); + if (cpu_has_mips64r1) + seq_printf(m, "%s", " mips64r1"); + if (cpu_has_mips64r2) + seq_printf(m, "%s", " mips64r2"); + seq_printf(m, "\n"); + + seq_printf(m, "ASEs implemented\t:"); + if (cpu_has_mips16) seq_printf(m, "%s", " mips16"); + if (cpu_has_mdmx) seq_printf(m, "%s", " mdmx"); + if (cpu_has_mips3d) seq_printf(m, "%s", " mips3d"); + if (cpu_has_smartmips) seq_printf(m, "%s", " smartmips"); + if (cpu_has_dsp) seq_printf(m, "%s", " dsp"); + if (cpu_has_dsp2) seq_printf(m, "%s", " dsp2"); + if (cpu_has_mipsmt) seq_printf(m, "%s", " mt"); + if (cpu_has_mmips) seq_printf(m, "%s", " micromips"); + if (cpu_has_vz) seq_printf(m, "%s", " vz"); + if (cpu_has_msa) seq_printf(m, "%s", " msa"); + if (cpu_has_eva) seq_printf(m, "%s", " eva"); + seq_printf(m, "\n"); + + if (cpu_has_mmips) { + seq_printf(m, "micromips kernel\t: %s\n", + (read_c0_config3() & MIPS_CONF3_ISA_OE) ? "yes" : "no"); + } + seq_printf(m, "shadow register sets\t: %d\n", + cpu_data[n].srsets); + seq_printf(m, "kscratch registers\t: %d\n", + hweight8(cpu_data[n].kscratch_mask)); + seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core); sprintf(fmt, "VCE%%c exceptions\t\t: %s\n", - cpu_has_vce ? "%u" : "not available"); + cpu_has_vce ? "%u" : "not available"); seq_printf(m, fmt, 'D', vced_count); seq_printf(m, fmt, 'I', vcei_count); + proc_cpuinfo_notifier_args.m = m; + proc_cpuinfo_notifier_args.n = n; + + raw_notifier_call_chain(&proc_cpuinfo_chain, 0, + &proc_cpuinfo_notifier_args); + + seq_printf(m, "\n"); + return 0; } @@ -156,7 +158,7 @@ static void c_stop(struct seq_file *m, void *v) { } -struct seq_operations cpuinfo_op = { +const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop, |