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| author | Ivan Kokshaysky <ink@jurassic.park.msu.ru> | 2006-06-04 02:51:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-05 12:29:16 -0700 |
| commit | c7d2d28b9851d0ffc9924b0e36bac806d18ebf25 (patch) | |
| tree | f48fadad9a5cce62f7016cb48bc258928cb49114 /include/asm-alpha/smp.h | |
| parent | ba0c19ed6a61a96d4b42b81cb19d4bc81b5f728c (diff) | |
| download | lwn-c7d2d28b9851d0ffc9924b0e36bac806d18ebf25.tar.gz lwn-c7d2d28b9851d0ffc9924b0e36bac806d18ebf25.zip | |
[PATCH] alpha: SMP IRQ routing fix
From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
After removal of fixup_cpu_present_map() function Alpha ended up with an empty
cpu_present_map, so secondary CPUs on SMP systems are not being started.
Worse, on some platforms we route interrupts to secondary CPUs using
cpu_possible_map which is still populated properly. As a result, these
interrupts go nowhere so the machines like DP264 aren't able to boot even with
a primary CPU.
Fixed basically by s/cpu_present_mask/cpu_present_map/.
Thanks to Ernst Herzberg for reporting the bug and testing the fix.
Cc: Ernst Herzberg <list-lkml@net4u.de>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-alpha/smp.h')
| -rw-r--r-- | include/asm-alpha/smp.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/include/asm-alpha/smp.h b/include/asm-alpha/smp.h index 9950706abdf8..e1432102be05 100644 --- a/include/asm-alpha/smp.h +++ b/include/asm-alpha/smp.h @@ -45,10 +45,8 @@ extern struct cpuinfo_alpha cpu_data[NR_CPUS]; #define hard_smp_processor_id() __hard_smp_processor_id() #define raw_smp_processor_id() (current_thread_info()->cpu) -extern cpumask_t cpu_present_mask; -extern cpumask_t cpu_online_map; extern int smp_num_cpus; -#define cpu_possible_map cpu_present_mask +#define cpu_possible_map cpu_present_map int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, cpumask_t cpu); |