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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-02-26 22:37:34 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-02-26 22:37:30 +0100
commit2c2df118a6440748e6fd71a510a66ee708c31494 (patch)
tree4e19684886c0c1e7261a1d68de9885302c0565f1 /arch/s390/include/asm/smp.h
parentabd1ecf209b30a0ed43f0aae50f8b8ce1be2c3d1 (diff)
[S390] smp: always reboot on cpu 0
Always reboot on logical cpu 0. This makes sure that the IPL cpu is always the same and usually avoids strange numbering schemes between physical and logical cpus. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/smp.h')
-rw-r--r--arch/s390/include/asm/smp.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 9d2acb0b4847..c2d0e638f892 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -31,6 +31,18 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
+extern void smp_switch_to_ipl_cpu(void (*func)(void *), void *);
+extern void smp_switch_to_cpu(void (*)(void *), void *, unsigned long sp,
+ int from, int to);
+extern void smp_restart_cpu(void);
+
+#else /* CONFIG_SMP */
+
+static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
+{
+ func(data);
+}
+
#endif /* CONFIG_SMP */
#ifdef CONFIG_HOTPLUG_CPU