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authorMichal Simek <monstr@monstr.eu>2012-01-10 12:15:58 +0100
committerMichal Simek <monstr@monstr.eu>2012-01-11 09:20:55 +0100
commitd761f0c521868e59cd0bc59159cbdb4686fe210d (patch)
treeb76736a73f86a5c0d745cc4c6ca1ae59a4394df8 /arch/microblaze/kernel
parente343a895a9f342f239c5e3c5ffc6c0b1707e6244 (diff)
downloadlinux-linaro-stable-d761f0c521868e59cd0bc59159cbdb4686fe210d.tar.gz
microblaze: Add topology init
Init topology subsystem by cpu registration. Microblaze Linux kernel is fauling by "Oops: kernel access of bad area, sig: 11" because cpu is not initialized. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel')
-rw-r--r--arch/microblaze/kernel/setup.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 604cd9dd1333..d4fc1a971779 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -26,6 +26,7 @@
#include <linux/cache.h>
#include <linux/of_platform.h>
#include <linux/dma-mapping.h>
+#include <linux/cpu.h>
#include <asm/cacheflush.h>
#include <asm/entry.h>
#include <asm/cpuinfo.h>
@@ -226,5 +227,23 @@ static int __init setup_bus_notifier(void)
return 0;
}
-
arch_initcall(setup_bus_notifier);
+
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
+static int __init topology_init(void)
+{
+ int i, ret;
+
+ for_each_present_cpu(i) {
+ struct cpu *c = &per_cpu(cpu_devices, i);
+
+ ret = register_cpu(c, i);
+ if (ret)
+ printk(KERN_WARNING "topology_init: register_cpu %d "
+ "failed (%d)\n", i, ret);
+ }
+
+ return 0;
+}
+subsys_initcall(topology_init);