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proc.c

/*
 *  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 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];
      int i;

#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[n],
                                 (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",
               cpu_has_watch ? "yes, " : "no\n");
      if (cpu_has_watch) {
            seq_printf(m, "count: %d, address/irw mask: [",
                     cpu_data[n].watch_reg_count);
            for (i = 0; i < cpu_data[n].watch_reg_count; i++)
                  seq_printf(m, "%s0x%04x", i ? ", " : "" ,
                           cpu_data[n].watch_reg_masks[i]);
            seq_printf(m, "]\n");
      }
      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" : ""
            );
      seq_printf(m, "shadow register sets\t: %d\n",
                   cpu_data[n].srsets);
      seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);

      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)
{
}

const struct seq_operations cpuinfo_op = {
      .start      = c_start,
      .next = c_next,
      .stop = c_stop,
      .show = show_cpuinfo,
};

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