From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 arch/mips/kernel/proc.c | 144 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 arch/mips/kernel/proc.c

(limited to 'arch/mips/kernel/proc.c')

diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
new file mode 100644
index 00000000..acb34373
--- /dev/null
+++ b/arch/mips/kernel/proc.c
@@ -0,0 +1,144 @@
+/*
+ *  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/idle.h>
+#include <asm/mipsregs.h>
+#include <asm/processor.h>
+#include <asm/prom.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_online(n))
+		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());
+		if (mips_get_machine_name())
+			seq_printf(m, "machine\t\t\t: %s\n",
+				   mips_get_machine_name());
+	}
+
+	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: %u.%02u\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");
+	}
+	if (cpu_has_mips_r) {
+		seq_printf(m, "isa\t\t\t:");
+		if (cpu_has_mips_1)
+			seq_printf(m, "%s", " mips1");
+		if (cpu_has_mips_2)
+			seq_printf(m, "%s", " mips2");
+		if (cpu_has_mips_3)
+			seq_printf(m, "%s", " mips3");
+		if (cpu_has_mips_4)
+			seq_printf(m, "%s", " mips4");
+		if (cpu_has_mips_5)
+			seq_printf(m, "%s", " mips5");
+		if (cpu_has_mips32r1)
+			seq_printf(m, "%s", " mips32r1");
+		if (cpu_has_mips32r2)
+			seq_printf(m, "%s", " mips32r2");
+		if (cpu_has_mips64r1)
+			seq_printf(m, "%s", " mips64r1");
+		if (cpu_has_mips64r2)
+			seq_printf(m, "%s", " mips64r2");
+		seq_printf(m, "\n");
+	}
+
+	seq_printf(m, "ASEs implemented\t:");
+	if (cpu_has_mips16)	seq_printf(m, "%s", " mips16");
+	if (cpu_has_mdmx)	seq_printf(m, "%s", " mdmx");
+	if (cpu_has_mips3d)	seq_printf(m, "%s", " mips3d");
+	if (cpu_has_smartmips)	seq_printf(m, "%s", " smartmips");
+	if (cpu_has_dsp)	seq_printf(m, "%s", " dsp");
+	if (cpu_has_dsp2)	seq_printf(m, "%s", " dsp2");
+	if (cpu_has_mipsmt)	seq_printf(m, "%s", " mt");
+	if (cpu_has_mmips)	seq_printf(m, "%s", " micromips");
+	if (cpu_has_vz)		seq_printf(m, "%s", " vz");
+	seq_printf(m, "\n");
+
+	if (cpu_has_mmips) {
+		seq_printf(m, "micromips kernel\t: %s\n",
+		      (read_c0_config3() & MIPS_CONF3_ISA_OE) ?  "yes" : "no");
+	}
+	seq_printf(m, "shadow register sets\t: %d\n",
+		      cpu_data[n].srsets);
+	seq_printf(m, "kscratch registers\t: %d\n",
+		      hweight8(cpu_data[n].kscratch_mask));
+	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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