From dbd70fb499952d0ba282f0159dafacfc31d50313 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 17 Apr 2008 07:46:12 +0200 Subject: [S390] cpu topology support for s390. Add s390 backend so we can give the scheduler some hints about the cpu topology. Signed-off-by: Martin Schwidefsky Signed-off-by: Heiko Carstens --- include/asm-s390/smp.h | 2 ++ include/asm-s390/topology.h | 14 ++++++++++++++ 2 files changed, 16 insertions(+) (limited to 'include/asm-s390') diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h index c7b74326a52..a464a66c65d 100644 --- a/include/asm-s390/smp.h +++ b/include/asm-s390/smp.h @@ -90,6 +90,8 @@ extern void __cpu_die (unsigned int cpu); extern void cpu_die (void) __attribute__ ((noreturn)); extern int __cpu_up (unsigned int cpu); +extern struct mutex smp_cpu_state_mutex; + extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info, int wait); #endif diff --git a/include/asm-s390/topology.h b/include/asm-s390/topology.h index 613aa64019d..3b28a09a210 100644 --- a/include/asm-s390/topology.h +++ b/include/asm-s390/topology.h @@ -1,6 +1,20 @@ #ifndef _ASM_S390_TOPOLOGY_H #define _ASM_S390_TOPOLOGY_H +#include + +#define mc_capable() (1) + +cpumask_t cpu_coregroup_map(unsigned int cpu); + +#ifdef CONFIG_SMP +void s390_init_cpu_topology(void); +#else +static inline void s390_init_cpu_topology(void) +{ +}; +#endif + #include #endif /* _ASM_S390_TOPOLOGY_H */ -- cgit v1.2.3-18-g5258