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The default values for SD_MC_INIT cause an additional cpu usage of up to 40% on some network benchmarks compared to the plain SD_CPU_INIT values. So just define SD_MC_INIT to SD_CPU_INIT. More tuning needs to be done. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
38 lines
825 B
C
38 lines
825 B
C
#ifndef _ASM_S390_TOPOLOGY_H
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#define _ASM_S390_TOPOLOGY_H
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#include <linux/cpumask.h>
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#define mc_capable() (1)
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cpumask_t cpu_coregroup_map(unsigned int cpu);
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const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
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extern cpumask_t cpu_core_map[NR_CPUS];
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#define topology_core_siblings(cpu) (cpu_core_map[cpu])
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#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
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int topology_set_cpu_management(int fc);
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void topology_schedule_update(void);
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#define POLARIZATION_UNKNWN (-1)
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#define POLARIZATION_HRZ (0)
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#define POLARIZATION_VL (1)
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#define POLARIZATION_VM (2)
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#define POLARIZATION_VH (3)
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#ifdef CONFIG_SMP
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void s390_init_cpu_topology(void);
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#else
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static inline void s390_init_cpu_topology(void)
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{
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};
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#endif
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#define SD_MC_INIT SD_CPU_INIT
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#include <asm-generic/topology.h>
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#endif /* _ASM_S390_TOPOLOGY_H */
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