sh: Break out cpuinfo_op procfs bits.

Presently this is all inlined in setup.c, which is not really the place
for it. Follow the x86 example and split it out into its own file.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 149 insertions, 1 deletions

diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index 4edcb60a1355..d49c2135fd48 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -20,4 +20,4 @@ obj-$(CONFIG_SH_CLK_CPG_LEGACY)	+= clock-cpg.o
 obj-$(CONFIG_SH_FPU)            += fpu.o
 obj-$(CONFIG_SH_FPU_EMU)        += fpu.o
 
-obj-y   += irq/ init.o clock.o hwblk.o
+obj-y   += irq/ init.o clock.o hwblk.o proc.o
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 */