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/*
* linux/arch/mips/kernel/proc.c
*
* 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/mipsregs.h>
#include <asm/processor.h>
unsigned int vced_count, vcei_count;
static const char *cpu_name[] = {
[CPU_UNKNOWN] = "unknown",
[CPU_R2000] = "R2000",
[CPU_R3000] = "R3000",
[CPU_R3000A] = "R3000A",
[CPU_R3041] = "R3041",
[CPU_R3051] = "R3051",
[CPU_R3052] = "R3052",
[CPU_R3081] = "R3081",
[CPU_R3081E] = "R3081E",
[CPU_R4000PC] = "R4000PC",
[CPU_R4000SC] = "R4000SC",
[CPU_R4000MC] = "R4000MC",
[CPU_R4200] = "R4200",
[CPU_R4400PC] = "R4400PC",
[CPU_R4400SC] = "R4400SC",
[CPU_R4400MC] = "R4400MC",
[CPU_R4600] = "R4600",
[CPU_R6000] = "R6000",
[CPU_R6000A] = "R6000A",
[CPU_R8000] = "R8000",
[CPU_R10000] = "R10000",
[CPU_R12000] = "R12000",
[CPU_R14000] = "R14000",
[CPU_R4300] = "R4300",
[CPU_R4650] = "R4650",
[CPU_R4700] = "R4700",
[CPU_R5000] = "R5000",
[CPU_R5000A] = "R5000A",
[CPU_R4640] = "R4640",
[CPU_NEVADA] = "Nevada",
[CPU_RM7000] = "RM7000",
[CPU_RM9000] = "RM9000",
[CPU_R5432] = "R5432",
[CPU_4KC] = "MIPS 4Kc",
[CPU_5KC] = "MIPS 5Kc",
[CPU_R4310] = "R4310",
[CPU_SB1] = "SiByte SB1",
[CPU_SB1A] = "SiByte SB1A",
[CPU_TX3912] = "TX3912",
[CPU_TX3922] = "TX3922",
[CPU_TX3927] = "TX3927",
[CPU_AU1000] = "Au1000",
[CPU_AU1500] = "Au1500",
[CPU_AU1100] = "Au1100",
[CPU_AU1550] = "Au1550",
[CPU_AU1200] = "Au1200",
[CPU_4KEC] = "MIPS 4KEc",
[CPU_4KSC] = "MIPS 4KSc",
[CPU_VR41XX] = "NEC Vr41xx",
[CPU_R5500] = "R5500",
[CPU_TX49XX] = "TX49xx",
[CPU_20KC] = "MIPS 20Kc",
[CPU_24K] = "MIPS 24K",
[CPU_25KF] = "MIPS 25Kf",
[CPU_34K] = "MIPS 34K",
[CPU_74K] = "MIPS 74K",
[CPU_VR4111] = "NEC VR4111",
[CPU_VR4121] = "NEC VR4121",
[CPU_VR4122] = "NEC VR4122",
[CPU_VR4131] = "NEC VR4131",
[CPU_VR4133] = "NEC VR4133",
[CPU_VR4181] = "NEC VR4181",
[CPU_VR4181A] = "NEC VR4181A",
[CPU_SR71000] = "Sandcraft SR71000",
[CPU_BCM3302] = "Broadcom BCM3302",
[CPU_BCM4710] = "Broadcom BCM4710",
[CPU_PR4450] = "Philips PR4450",
[CPU_LOONGSON2] = "ICT Loongson-2",
};
static int show_cpuinfo(struct seq_file *m, void *v)
{
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];
#ifdef CONFIG_SMP
if (!cpu_isset(n, cpu_online_map))
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());
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[cpu_data[n].cputype <= CPU_LAST ?
cpu_data[n].cputype : CPU_UNKNOWN],
(version >> 4) & 0x0f, version & 0x0f,
(fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
seq_printf(m, "BogoMIPS\t\t: %lu.%02lu\n",
cpu_data[n].udelay_val / (500000/HZ),
(cpu_data[n].udelay_val / (5000/HZ)) % 100);
seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
seq_printf(m, "microsecond timers\t: %s\n",
cpu_has_counter ? "yes" : "no");
seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
seq_printf(m, "extra interrupt vector\t: %s\n",
cpu_has_divec ? "yes" : "no");
seq_printf(m, "hardware watchpoint\t: %s\n",
cpu_has_watch ? "yes" : "no");
seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n",
cpu_has_mips16 ? " mips16" : "",
cpu_has_mdmx ? " mdmx" : "",
cpu_has_mips3d ? " mips3d" : "",
cpu_has_smartmips ? " smartmips" : "",
cpu_has_dsp ? " dsp" : "",
cpu_has_mipsmt ? " mt" : ""
);
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);
seq_printf(m, "\n");
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
unsigned long i = *pos;
return i < NR_CPUS ? (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)
{
}
struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
.show = show_cpuinfo,
};
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