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// 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_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,
};
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