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| author | Andrew Morton <akpm@osdl.org> | 2006-06-30 01:55:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-30 11:25:37 -0700 |
| commit | 033ab7f8e5c655f49ec8039930b2efd412abbbd7 (patch) | |
| tree | 33fd8073e47d88731380d97be8ecdbdbd69b459e | |
| parent | a1836a42daf5ddfe9a891973734bd9a7d62eb504 (diff) | |
| download | linux-3.10-033ab7f8e5c655f49ec8039930b2efd412abbbd7.tar.gz linux-3.10-033ab7f8e5c655f49ec8039930b2efd412abbbd7.tar.bz2 linux-3.10-033ab7f8e5c655f49ec8039930b2efd412abbbd7.zip | |
[PATCH] add smp_setup_processor_id()
Presently, smp_processor_id() isn't necessarily set up until setup_arch().
But it's used in boot_cpu_init() and printk() and perhaps in other places,
prior to setup_arch() being called.
So provide a new smp_setup_processor_id() which is called before anything
else, wire it up for Voyager (which boots on a CPU other than #0, and broke).
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/i386/mach-voyager/voyager_smp.c | 6 | ||||
| -rw-r--r-- | include/linux/smp.h | 2 | ||||
| -rw-r--r-- | init/main.c | 7 |
3 files changed, 15 insertions, 0 deletions
diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c index 5b8b579a079..6e9e494c6c3 100644 --- a/arch/i386/mach-voyager/voyager_smp.c +++ b/arch/i386/mach-voyager/voyager_smp.c @@ -1938,3 +1938,9 @@ smp_cpus_done(unsigned int max_cpus) { zap_low_mappings(); } + +void __init +smp_setup_processor_id(void) +{ + current_thread_info()->cpu = hard_smp_processor_id(); +} diff --git a/include/linux/smp.h b/include/linux/smp.h index c93c3fe4308..837e8bce134 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -125,4 +125,6 @@ static inline void smp_send_reschedule(int cpu) { } #define put_cpu() preempt_enable() #define put_cpu_no_resched() preempt_enable_no_resched() +void smp_setup_processor_id(void); + #endif /* __LINUX_SMP_H */ diff --git a/init/main.c b/init/main.c index bce0eb7f4f8..ae04eb78a93 100644 --- a/init/main.c +++ b/init/main.c @@ -446,10 +446,17 @@ static void __init boot_cpu_init(void) cpu_set(cpu, cpu_possible_map); } +void __init __attribute__((weak)) smp_setup_processor_id(void) +{ +} + asmlinkage void __init start_kernel(void) { char * command_line; extern struct kernel_param __start___param[], __stop___param[]; + + smp_setup_processor_id(); + /* * Interrupts are still disabled. Do necessary setups, then * enable them |