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[PATCH] m32r: Fix cpu_possible_map and cpu_present_map initialization for SMP kernel

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This patch fixes a boot problem of the m32r SMP kernel 2.6.16-rc1-mm3 or
later.

In this patch, cpu_possible_map is statically initialized, and cpu_present_map
is also copied from cpu_possible_map in smp_prepare_cpus(), because the m32r
architecture has not supported CPU hotplug yet.

Signed-off-by: Hayato Fujiwara <fujiwara.hayato@renesas.com>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hirokazu Takata
2006-04-10 22:53:18 -07:00
committed by Linus Torvalds
parent 917b1f78a9
commit 7c1c4e5418
3 changed files with 17 additions and 17 deletions
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12
arch/m32r/kernel/setup.c
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@@ -9,6 +9,7 @@
#include <linux/config.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/stddef.h>
#include <linux/fs.h>
#include <linux/sched.h>
@@ -219,8 +220,6 @@ static unsigned long __init setup_memory(void)
extern unsigned long setup_memory(void);
#endif /* CONFIG_DISCONTIGMEM */
#define M32R_PCC_PCATCR 0x00ef7014 /* will move to m32r.h */
void __init setup_arch(char **cmdline_p)
{
ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
@@ -269,15 +268,14 @@ void __init setup_arch(char **cmdline_p)
paging_init();
}
static struct cpu cpu[NR_CPUS];
static struct cpu cpu_devices[NR_CPUS];
static int __init topology_init(void)
{
int cpu_id;
int i;
for (cpu_id = 0; cpu_id < NR_CPUS; cpu_id++)
if (cpu_possible(cpu_id))
register_cpu(&cpu[cpu_id], cpu_id, NULL);
for_each_present_cpu(i)
register_cpu(&cpu_devices[i], i, NULL);
return 0;
}