sh: Split out CPU topology initialization.

Split out the CPU topology initialization to a separate file,
and switch it to a percpu type, rather than an NR_CPUS array.

At the same time, switch to only registering present CPUs,
rather than using the possible CPU map.

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

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/sh/kernel/topology.c b/arch/sh/kernel/topology.c
new file mode 100644
index 000000000000..8a4664c0ab57
--- /dev/null
+++ b/arch/sh/kernel/topology.c
@@ -0,0 +1,21 @@
+#include <linux/cpu.h>
+#include <linux/cpumask.h>
+#include <linux/init.h>
+#include <linux/percpu.h>
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+static int __init topology_init(void)
+{
+	int i, ret;
+
+	for_each_present_cpu(i) {
+		ret = register_cpu(&per_cpu(cpu_devices, i), i);
+		if (unlikely(ret))
+			printk(KERN_WARNING "%s: register_cpu %d failed (%d)\n",
+			       __FUNCTION__, i, ret);
+	}
+
+	return 0;
+}
+subsys_initcall(topology_init);