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| author | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
| commit | 47871889c601d8199c51a4086f77eebd77c29b0b (patch) | |
| tree | 40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /arch/s390/include/asm/smp.h | |
| parent | c16cc0b464b8876cfd57ce1c1dbcb6f9a6a0bce3 (diff) | |
| parent | 30ff056c42c665b9ea535d8515890857ae382540 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/firmware/iscsi_ibft.c
Diffstat (limited to 'arch/s390/include/asm/smp.h')
| -rw-r--r-- | arch/s390/include/asm/smp.h | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index 2ab1141eeb5..edc03cb9cd7 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -29,7 +29,43 @@ extern int smp_cpu_polarization[]; extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -extern union save_area *zfcpdump_save_areas[NR_CPUS + 1]; +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); + +/* + * returns 1 if (virtual) cpu is scheduled + * returns 0 otherwise + */ +static inline int smp_vcpu_scheduled(int cpu) +{ + u32 status; + + switch (sigp_ps(&status, 0, cpu, sigp_sense_running)) { + case sigp_status_stored: + /* Check for running status */ + if (status & 0x400) + return 0; + break; + case sigp_not_operational: + return 0; + default: + break; + } + return 1; +} + +#else /* CONFIG_SMP */ + +static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data) +{ + func(data); +} + +#define smp_vcpu_scheduled (1) #endif /* CONFIG_SMP */ |