1 files changed, 148 insertions, 0 deletions

diff --git a/arch/sh/kernel/cpu/proc.c b/arch/sh/kernel/cpu/proc.c
new file mode 100644
index 000000000000..e80a936f409a
--- /dev/null
+++ b/arch/sh/kernel/cpu/proc.c
@@ -0,0 +1,148 @@
+#include <linux/seq_file.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <asm/machvec.h>
+#include <asm/processor.h>
+
+static const char *cpu_name[] = {
+        [CPU_SH7201]    = "SH7201",
+        [CPU_SH7203]    = "SH7203",     [CPU_SH7263]    = "SH7263",
+        [CPU_SH7206]    = "SH7206",     [CPU_SH7619]    = "SH7619",
+        [CPU_SH7705]    = "SH7705",     [CPU_SH7706]    = "SH7706",
+        [CPU_SH7707]    = "SH7707",     [CPU_SH7708]    = "SH7708",
+        [CPU_SH7709]    = "SH7709",     [CPU_SH7710]    = "SH7710",
+        [CPU_SH7712]    = "SH7712",     [CPU_SH7720]    = "SH7720",
+        [CPU_SH7721]    = "SH7721",     [CPU_SH7729]    = "SH7729",
+        [CPU_SH7750]    = "SH7750",     [CPU_SH7750S]   = "SH7750S",
+        [CPU_SH7750R]   = "SH7750R",    [CPU_SH7751]    = "SH7751",
+        [CPU_SH7751R]   = "SH7751R",    [CPU_SH7760]    = "SH7760",
+        [CPU_SH4_202]   = "SH4-202",    [CPU_SH4_501]   = "SH4-501",
+        [CPU_SH7763]    = "SH7763",     [CPU_SH7770]    = "SH7770",
+        [CPU_SH7780]    = "SH7780",     [CPU_SH7781]    = "SH7781",
+        [CPU_SH7343]    = "SH7343",     [CPU_SH7785]    = "SH7785",
+        [CPU_SH7786]    = "SH7786",     [CPU_SH7757]    = "SH7757",
+        [CPU_SH7722]    = "SH7722",     [CPU_SHX3]      = "SH-X3",
+        [CPU_SH5_101]   = "SH5-101",    [CPU_SH5_103]   = "SH5-103",
+        [CPU_MXG]       = "MX-G",       [CPU_SH7723]    = "SH7723",
+        [CPU_SH7366]    = "SH7366",     [CPU_SH7724]    = "SH7724",
+        [CPU_SH_NONE]   = "Unknown"
+};
+
+const char *get_cpu_subtype(struct sh_cpuinfo *c)
+{
+        return cpu_name[c->type];
+}
+EXPORT_SYMBOL(get_cpu_subtype);
+
+#ifdef CONFIG_PROC_FS
+/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
+static const char *cpu_flags[] = {
+        "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
+        "ptea", "llsc", "l2", "op32", "pteaex", NULL
+};
+
+static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
+{
+        unsigned long i;
+
+        seq_printf(m, "cpu flags\t:");
+
+        if (!c->flags) {
+                seq_printf(m, " %s\n", cpu_flags[0]);
+                return;
+        }
+
+        for (i = 0; cpu_flags[i]; i++)
+                if ((c->flags & (1 << i)))
+                        seq_printf(m, " %s", cpu_flags[i+1]);
+
+        seq_printf(m, "\n");
+}
+
+static void show_cacheinfo(struct seq_file *m, const char *type,
+                           struct cache_info info)
+{
+        unsigned int cache_size;
+
+        cache_size = info.ways * info.sets * info.linesz;
+
+        seq_printf(m, "%s size\t: %2dKiB (%d-way)\n",
+                   type, cache_size >> 10, info.ways);
+}
+
+/*
+ *      Get CPU information for use by the procfs.
+ */
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+        struct sh_cpuinfo *c = v;
+        unsigned int cpu = c - cpu_data;
+
+        if (!cpu_online(cpu))
+                return 0;
+
+        if (cpu == 0)
+                seq_printf(m, "machine\t\t: %s\n", get_system_type());
+        else
+                seq_printf(m, "\n");
+
+        seq_printf(m, "processor\t: %d\n", cpu);
+        seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
+        seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c));
+        if (c->cut_major == -1)
+                seq_printf(m, "cut\t\t: unknown\n");
+        else if (c->cut_minor == -1)
+                seq_printf(m, "cut\t\t: %d.x\n", c->cut_major);
+        else
+                seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor);
+
+        show_cpuflags(m, c);
+
+        seq_printf(m, "cache type\t: ");
+
+        /*
+         * Check for what type of cache we have, we support both the
+         * unified cache on the SH-2 and SH-3, as well as the harvard
+         * style cache on the SH-4.
+         */
+        if (c->icache.flags & SH_CACHE_COMBINED) {
+                seq_printf(m, "unified\n");
+                show_cacheinfo(m, "cache", c->icache);
+        } else {
+                seq_printf(m, "split (harvard)\n");
+                show_cacheinfo(m, "icache", c->icache);
+                show_cacheinfo(m, "dcache", c->dcache);
+        }
+
+        /* Optional secondary cache */
+        if (c->flags & CPU_HAS_L2_CACHE)
+                show_cacheinfo(m, "scache", c->scache);
+
+        seq_printf(m, "address sizes\t: %u bits physical\n", c->phys_bits);
+
+        seq_printf(m, "bogomips\t: %lu.%02lu\n",
+                     c->loops_per_jiffy/(500000/HZ),
+                     (c->loops_per_jiffy/(5000/HZ)) % 100);
+
+        return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+        return *pos < NR_CPUS ? cpu_data + *pos : 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,
+};
+#endif /* CONFIG_PROC_FS */