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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-08-31 10:28:18 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-09-09 20:41:55 +0200 |
| commit | 4cb14bc8c54f8489251d5cba8328cb410ead0cea (patch) | |
| tree | fdb4b9f1f9b6d1431e913d6fcc8e6e4a99b6c47b /arch/s390/include | |
| parent | b40d8ed4e42c79f8ed1cf345eed0888f4a2f0678 (diff) | |
| download | kernel_samsung_smdk4412-4cb14bc8c54f8489251d5cba8328cb410ead0cea.zip kernel_samsung_smdk4412-4cb14bc8c54f8489251d5cba8328cb410ead0cea.tar.gz kernel_samsung_smdk4412-4cb14bc8c54f8489251d5cba8328cb410ead0cea.tar.bz2 | |
topology, s390: Add z11 cpu topology support
Use the extended cpu topology information that z11 machines provide
to improve the scheduler's decision making.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100831082844.604956770@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/topology.h | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 831bd03..051107a 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -3,15 +3,32 @@ #include <linux/cpumask.h> -#define mc_capable() (1) - -const struct cpumask *cpu_coregroup_mask(unsigned int cpu); - extern unsigned char cpu_core_id[NR_CPUS]; extern cpumask_t cpu_core_map[NR_CPUS]; +static inline const struct cpumask *cpu_coregroup_mask(unsigned int cpu) +{ + return &cpu_core_map[cpu]; +} + #define topology_core_id(cpu) (cpu_core_id[cpu]) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) +#define mc_capable() (1) + +#ifdef CONFIG_SCHED_BOOK + +extern unsigned char cpu_book_id[NR_CPUS]; +extern cpumask_t cpu_book_map[NR_CPUS]; + +static inline const struct cpumask *cpu_book_mask(unsigned int cpu) +{ + return &cpu_book_map[cpu]; +} + +#define topology_book_id(cpu) (cpu_book_id[cpu]) +#define topology_book_cpumask(cpu) (&cpu_book_map[cpu]) + +#endif /* CONFIG_SCHED_BOOK */ int topology_set_cpu_management(int fc); void topology_schedule_update(void); @@ -30,6 +47,8 @@ static inline void s390_init_cpu_topology(void) }; #endif +#define SD_BOOK_INIT SD_CPU_INIT + #include <asm-generic/topology.h> #endif /* _ASM_S390_TOPOLOGY_H */ |