// 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,};