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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331// SPDX-License-Identifier: GPL-2.0/* * 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/idle.h>#include <asm/mipsregs.h>#include <asm/processor.h>#include <asm/prom.h>
unsigned int vced_count, vcei_count;
/* * 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){ 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_online(n)) 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()); 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_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", str_yes_no(cpu_wait)); seq_printf(m, "microsecond timers\t: %s\n", str_yes_no(cpu_has_counter)); seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize); seq_printf(m, "extra interrupt vector\t: %s\n", str_yes_no(cpu_has_divec)); seq_printf(m, "hardware watchpoint\t: %s", str_yes_no(cpu_has_watch)); 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_putc(m, ']'); }
seq_puts(m, "\nisa\t\t\t:"); if (cpu_has_mips_1) seq_puts(m, " mips1"); if (cpu_has_mips_2) seq_puts(m, " mips2"); if (cpu_has_mips_3) seq_puts(m, " mips3"); if (cpu_has_mips_4) seq_puts(m, " mips4"); if (cpu_has_mips_5) seq_puts(m, " mips5"); if (cpu_has_mips32r1) seq_puts(m, " mips32r1"); if (cpu_has_mips32r2) seq_puts(m, " mips32r2"); if (cpu_has_mips32r5) seq_puts(m, " mips32r5"); if (cpu_has_mips32r6) seq_puts(m, " mips32r6"); if (cpu_has_mips64r1) seq_puts(m, " mips64r1"); if (cpu_has_mips64r2) seq_puts(m, " mips64r2"); if (cpu_has_mips64r5) seq_puts(m, " mips64r5"); if (cpu_has_mips64r6) seq_puts(m, " mips64r6"); seq_puts(m, "\n");
seq_puts(m, "ASEs implemented\t:"); if (cpu_has_mips16) seq_puts(m, " mips16"); if (cpu_has_mips16e2) seq_puts(m, " mips16e2"); if (cpu_has_mdmx) seq_puts(m, " mdmx"); if (cpu_has_mips3d) seq_puts(m, " mips3d"); if (cpu_has_smartmips) seq_puts(m, " smartmips"); if (cpu_has_dsp) seq_puts(m, " dsp"); if (cpu_has_dsp2) seq_puts(m, " dsp2"); if (cpu_has_dsp3) seq_puts(m, " dsp3"); if (cpu_has_mipsmt) seq_puts(m, " mt"); if (cpu_has_mmips) seq_puts(m, " micromips"); if (cpu_has_vz) seq_puts(m, " vz"); if (cpu_has_msa) seq_puts(m, " msa"); if (cpu_has_eva) seq_puts(m, " eva"); if (cpu_has_htw) seq_puts(m, " htw"); if (cpu_has_xpa) seq_puts(m, " xpa"); if (cpu_has_loongson_mmi) seq_puts(m, " loongson-mmi"); if (cpu_has_loongson_cam) seq_puts(m, " loongson-cam"); if (cpu_has_loongson_ext) seq_puts(m, " loongson-ext"); if (cpu_has_loongson_ext2) seq_puts(m, " loongson-ext2"); seq_putc(m, '\n');
if (cpu_has_mmips) seq_printf(m, "micromips kernel\t: %s\n", str_yes_no(read_c0_config3() & MIPS_CONF3_ISA_OE));
seq_puts(m, "Options implemented\t:"); if (cpu_has_tlb) seq_puts(m, " tlb"); if (cpu_has_ftlb) seq_puts(m, " ftlb"); if (cpu_has_tlbinv) seq_puts(m, " tlbinv"); if (cpu_has_segments) seq_puts(m, " segments"); if (cpu_has_rixiex) seq_puts(m, " rixiex"); if (cpu_has_ldpte) seq_puts(m, " ldpte"); if (cpu_has_maar) seq_puts(m, " maar"); if (cpu_has_rw_llb) seq_puts(m, " rw_llb"); if (cpu_has_4kex) seq_puts(m, " 4kex"); if (cpu_has_3k_cache) seq_puts(m, " 3k_cache"); if (cpu_has_4k_cache) seq_puts(m, " 4k_cache"); if (cpu_has_octeon_cache) seq_puts(m, " octeon_cache"); if (raw_cpu_has_fpu) seq_puts(m, " fpu"); if (cpu_has_32fpr) seq_puts(m, " 32fpr"); if (cpu_has_cache_cdex_p) seq_puts(m, " cache_cdex_p"); if (cpu_has_cache_cdex_s) seq_puts(m, " cache_cdex_s"); if (cpu_has_prefetch) seq_puts(m, " prefetch"); if (cpu_has_mcheck) seq_puts(m, " mcheck"); if (cpu_has_ejtag) seq_puts(m, " ejtag"); if (cpu_has_llsc) seq_puts(m, " llsc"); if (cpu_has_guestctl0ext) seq_puts(m, " guestctl0ext"); if (cpu_has_guestctl1) seq_puts(m, " guestctl1"); if (cpu_has_guestctl2) seq_puts(m, " guestctl2"); if (cpu_has_guestid) seq_puts(m, " guestid"); if (cpu_has_drg) seq_puts(m, " drg"); if (cpu_has_rixi) seq_puts(m, " rixi"); if (cpu_has_lpa) seq_puts(m, " lpa"); if (cpu_has_mvh) seq_puts(m, " mvh"); if (cpu_has_vtag_icache) seq_puts(m, " vtag_icache"); if (cpu_has_dc_aliases) seq_puts(m, " dc_aliases"); if (cpu_has_ic_fills_f_dc) seq_puts(m, " ic_fills_f_dc"); if (cpu_has_pindexed_dcache) seq_puts(m, " pindexed_dcache"); if (cpu_has_userlocal) seq_puts(m, " userlocal"); if (cpu_has_nofpuex) seq_puts(m, " nofpuex"); if (cpu_has_vint) seq_puts(m, " vint"); if (cpu_has_veic) seq_puts(m, " veic"); if (cpu_has_inclusive_pcaches) seq_puts(m, " inclusive_pcaches"); if (cpu_has_perf_cntr_intr_bit) seq_puts(m, " perf_cntr_intr_bit"); if (cpu_has_ufr) seq_puts(m, " ufr"); if (cpu_has_fre) seq_puts(m, " fre"); if (cpu_has_cdmm) seq_puts(m, " cdmm"); if (cpu_has_small_pages) seq_puts(m, " small_pages"); if (cpu_has_nan_legacy) seq_puts(m, " nan_legacy"); if (cpu_has_nan_2008) seq_puts(m, " nan_2008"); if (cpu_has_ebase_wg) seq_puts(m, " ebase_wg"); if (cpu_has_badinstr) seq_puts(m, " badinstr"); if (cpu_has_badinstrp) seq_puts(m, " badinstrp"); if (cpu_has_contextconfig) seq_puts(m, " contextconfig"); if (cpu_has_perf) seq_puts(m, " perf"); if (cpu_has_mac2008_only) seq_puts(m, " mac2008_only"); if (cpu_has_ftlbparex) seq_puts(m, " ftlbparex"); if (cpu_has_gsexcex) seq_puts(m, " gsexcex"); if (cpu_has_shared_ftlb_ram) seq_puts(m, " shared_ftlb_ram"); if (cpu_has_shared_ftlb_entries) seq_puts(m, " shared_ftlb_entries"); if (cpu_has_mipsmt_pertccounters) seq_puts(m, " mipsmt_pertccounters"); if (cpu_has_mmid) seq_puts(m, " mmid"); if (cpu_has_mm_sysad) seq_puts(m, " mm_sysad"); if (cpu_has_mm_full) seq_puts(m, " mm_full"); seq_puts(m, "\n");
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, "package\t\t\t: %d\n", cpu_data[n].package); seq_printf(m, "core\t\t\t: %d\n", cpu_core(&cpu_data[n]));
#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6) if (cpu_has_mipsmt) seq_printf(m, "VPE\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n])); else if (cpu_has_vp) seq_printf(m, "VP\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));#endif
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);
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_putc(m, '\n');
return 0;}
static void *c_start(struct seq_file *m, loff_t *pos){ unsigned long i = *pos;
return i < nr_cpu_ids ? (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){}
const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop, .show = show_cpuinfo,};