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authorDavid S. Miller <davem@hutch.davemloft.net>2007-06-02 14:41:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-06-04 21:49:50 -0700
commiteff3414b7277c4792debfa227f5408238d925f16 (patch)
tree6c68bbd22f14e8cfa42f4e2f5a18952086156321
parent5ecd3100e695228ac5e0ce0e325e252c0f11806f (diff)
[SPARC64]: Move topology init code into new file, sysfs.c
Also, use per-cpu data for struct cpu. Calling kmalloc for each cpu in topology_init() is just plain clumsy. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc64/kernel/Makefile4
-rw-r--r--arch/sparc64/kernel/setup.c19
-rw-r--r--arch/sparc64/kernel/sysfs.c26
3 files changed, 28 insertions, 21 deletions
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index d8d19093d12..f964bf28d21 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.70 2002/02/09 19:49:30 davem Exp $
+#
# Makefile for the linux kernel.
#
@@ -8,7 +8,7 @@ EXTRA_CFLAGS := -Werror
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o setup.o cpu.o idprom.o \
- traps.o auxio.o una_asm.o \
+ traps.o auxio.o una_asm.o sysfs.o \
irq.o ptrace.o time.o sys_sparc.o signal.o \
unaligned.o central.o pci.o starfire.o semaphore.o \
power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o \
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index de9b4c13f1c..7490cc670a5 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -513,22 +513,3 @@ void sun_do_break(void)
int serial_console = -1;
int stop_a_enabled = 1;
-
-static int __init topology_init(void)
-{
- int i, err;
-
- err = -ENOMEM;
-
- for_each_possible_cpu(i) {
- struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
- if (p) {
- register_cpu(p, i);
- err = 0;
- }
- }
-
- return err;
-}
-
-subsys_initcall(topology_init);
diff --git a/arch/sparc64/kernel/sysfs.c b/arch/sparc64/kernel/sysfs.c
new file mode 100644
index 00000000000..0808c214dc7
--- /dev/null
+++ b/arch/sparc64/kernel/sysfs.c
@@ -0,0 +1,26 @@
+/* sysfs.c: Toplogy sysfs support code for sparc64.
+ *
+ * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/sysdev.h>
+#include <linux/cpu.h>
+#include <linux/smp.h>
+#include <linux/percpu.h>
+#include <linux/init.h>
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+static int __init topology_init(void)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+ register_cpu(c, cpu);
+ }
+
+ return 0;
+}
+
+subsys_initcall(topology_init);