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/*
* linux/arch/mips/kernel/proc.c
*
* Copyright (C) 1995, 1996 Ralf Baechle
*/
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/bootinfo.h>
#include <asm/mipsregs.h>
#include <asm/processor.h>
#include <asm/watch.h>
unsigned long unaligned_instructions;
/*
* BUFFER is PAGE_SIZE bytes long.
*
* Currently /proc/cpuinfo is being abused to print data about the
* number of date/instruction cacheflushes.
*/
int get_cpuinfo(char *buffer)
{
const char *cpu_name[] = CPU_NAMES;
const char *mach_group_names[] = GROUP_NAMES;
const char *mach_unknown_names[] = GROUP_UNKNOWN_NAMES;
const char *mach_jazz_names[] = GROUP_JAZZ_NAMES;
const char *mach_dec_names[] = GROUP_DEC_NAMES;
const char *mach_arc_names[] = GROUP_ARC_NAMES;
const char *mach_sni_rm_names[] = GROUP_SNI_RM_NAMES;
const char *mach_acn_names[] = GROUP_ACN_NAMES;
const char *mach_sgi_names[] = GROUP_SGI_NAMES;
const char **mach_group_to_name[] = { mach_unknown_names,
mach_jazz_names,
mach_dec_names,
mach_arc_names,
mach_sni_rm_names,
mach_acn_names,
mach_sgi_names };
unsigned int version = read_32bit_cp0_register(CP0_PRID);
int len;
len = sprintf(buffer, "cpu\t\t\t: MIPS\n");
len += sprintf(buffer + len, "cpu model\t\t: %s V%d.%d\n",
cpu_name[mips_cputype <= CPU_LAST ?
mips_cputype :
CPU_UNKNOWN],
(version >> 4) & 0x0f,
version & 0x0f);
len += sprintf(buffer + len, "system type\t\t: %s %s\n",
mach_group_names[mips_machgroup],
mach_group_to_name[mips_machgroup][mips_machtype]);
len += sprintf(buffer + len, "BogoMIPS\t\t: %lu.%02lu\n",
(loops_per_sec + 2500) / 500000,
((loops_per_sec + 2500) / 5000) % 100);
#if defined (__MIPSEB__)
len += sprintf(buffer + len, "byteorder\t\t: big endian\n");
#endif
#if defined (__MIPSEL__)
len += sprintf(buffer + len, "byteorder\t\t: little endian\n");
#endif
len += sprintf(buffer + len, "unaligned accesses\t: %lu\n",
unaligned_instructions);
len += sprintf(buffer + len, "wait instruction\t: %s\n",
wait_available ? "yes" : "no");
len += sprintf(buffer + len, "microsecond timers\t: %s\n",
cyclecounter_available ? "yes" : "no");
len += sprintf(buffer + len, "extra interrupt vector\t: %s\n",
dedicated_iv_available ? "yes" : "no");
len += sprintf(buffer + len, "hardware watchpoint\t: %s\n",
watch_available ? "yes" : "no");
return len;
}
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