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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133// SPDX-License-Identifier: GPL-2.0/* * Copyright (C) 2020-2022 Loongson Technology Corporation Limited */#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/processor.h>#include <asm/time.h>
static int show_cpuinfo(struct seq_file *m, void *v){ unsigned long n = (unsigned long) v - 1; unsigned int isa = cpu_data[n].isa_level; unsigned int prid = cpu_data[n].processor_id; unsigned int version = cpu_data[n].processor_id & 0xff; unsigned int fp_version = cpu_data[n].fpu_vers; u64 freq = cpu_clock_freq, bogomips = lpj_fine * cpu_clock_freq;
#ifdef CONFIG_SMP if (!cpu_online(n)) return 0;#endif do_div(freq, 10000); do_div(bogomips, const_clock_freq * (5000/HZ));
/* * For the first processor also print the system type */ if (n == 0) seq_printf(m, "system type\t\t: %s\n\n", get_system_type());
seq_printf(m, "processor\t\t: %ld\n", n); seq_printf(m, "package\t\t\t: %d\n", cpu_data[n].package); seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core); seq_printf(m, "global_id\t\t: %d\n", cpu_data[n].global_id); seq_printf(m, "CPU Family\t\t: %s\n", __cpu_family[n]); seq_printf(m, "Model Name\t\t: %s\n", __cpu_full_name[n]); seq_printf(m, "PRID\t\t\t: %s (%08x)\n", id_to_core_name(prid), prid); seq_printf(m, "CPU Revision\t\t: 0x%02x\n", version); seq_printf(m, "FPU Revision\t\t: 0x%02x\n", fp_version); seq_printf(m, "CPU MHz\t\t\t: %u.%02u\n", (u32)freq / 100, (u32)freq % 100); seq_printf(m, "BogoMIPS\t\t: %u.%02u\n", (u32)bogomips / 100, (u32)bogomips % 100); seq_printf(m, "TLB Entries\t\t: %d\n", cpu_data[n].tlbsize); seq_printf(m, "Address Sizes\t\t: %d bits physical, %d bits virtual\n", cpu_pabits + 1, cpu_vabits + 1);
seq_puts(m, "ISA\t\t\t:"); if (isa & LOONGARCH_CPU_ISA_LA32R) seq_puts(m, " loongarch32r"); if (isa & LOONGARCH_CPU_ISA_LA32S) seq_puts(m, " loongarch32s"); if (isa & LOONGARCH_CPU_ISA_LA64) seq_puts(m, " loongarch64"); seq_puts(m, "\n");
seq_puts(m, "Features\t\t:"); if (cpu_has_cpucfg) seq_puts(m, " cpucfg"); if (cpu_has_lam) seq_puts(m, " lam"); if (cpu_has_lam_bh) seq_puts(m, " lam_bh"); if (cpu_has_scq) seq_puts(m, " scq"); if (cpu_has_ual) seq_puts(m, " ual"); if (cpu_has_fpu) seq_puts(m, " fpu"); if (cpu_has_lsx) seq_puts(m, " lsx"); if (cpu_has_lasx) seq_puts(m, " lasx"); if (cpu_has_crc32) seq_puts(m, " crc32"); if (cpu_has_complex) seq_puts(m, " complex"); if (cpu_has_crypto) seq_puts(m, " crypto"); if (cpu_has_ptw) seq_puts(m, " ptw"); if (cpu_has_lspw) seq_puts(m, " lspw"); if (cpu_has_lvz) seq_puts(m, " lvz"); if (cpu_has_lbt_x86) seq_puts(m, " lbt_x86"); if (cpu_has_lbt_arm) seq_puts(m, " lbt_arm"); if (cpu_has_lbt_mips) seq_puts(m, " lbt_mips"); seq_puts(m, "\n");
seq_printf(m, "Hardware Watchpoint\t: %s", str_yes_no(cpu_has_watch)); if (cpu_has_watch) { seq_printf(m, ", iwatch count: %d, dwatch count: %d", cpu_data[n].watch_ireg_count, cpu_data[n].watch_dreg_count); }
seq_puts(m, "\n\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,};