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[MIPS] Add topology_init.

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A recent patch introduced cpu topology in sysfs.  When you run a kernel
with SMP and sysfs enabled, you now get an Oops on boot. The following
patch fixes that by adding topology_init to arch/mips/kernel/smp.c. The
code is copied from arch/s390/kernel/smp.c.
    
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Rojhalat Ibrahim 2006-02-20 13:35:27 +00:00 committed by Ralf Baechle
parent 76e1daee7d
commit 1e35aabab8
1 changed files with 20 additions and 0 deletions
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20
arch/mips/kernel/smp.c
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@ -29,6 +29,7 @@
#include <linux/timex.h> #include <linux/timex.h>
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/cpumask.h> #include <linux/cpumask.h>
#include <linux/cpu.h>
#include <asm/atomic.h> #include <asm/atomic.h>
#include <asm/cpu.h> #include <asm/cpu.h>
@ -424,6 +425,25 @@ void flush_tlb_one(unsigned long vaddr)
local_flush_tlb_one(vaddr); local_flush_tlb_one(vaddr);
} }
static DEFINE_PER_CPU(struct cpu, cpu_devices);
static int __init topology_init(void)
{
int cpu;
int ret;
for_each_cpu(cpu) {
ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
"failed (%d)\n", cpu, ret);
}
return 0;
}
subsys_initcall(topology_init);
EXPORT_SYMBOL(flush_tlb_page); EXPORT_SYMBOL(flush_tlb_page);
EXPORT_SYMBOL(flush_tlb_one); EXPORT_SYMBOL(flush_tlb_one);
EXPORT_SYMBOL(cpu_data); EXPORT_SYMBOL(cpu_data);