96f4a70d8e
Export the cpu configuration topology via sysinfo. Two new lines are introduced: CPU Topology HW: 0 0 0 4 6 4 CPU Topology SW: 0 0 0 0 4 24 The HW line describes the cpu topology nesting levels when the maximum nesting level is used to get the corresponding SYSIB. The SW line describes what Linux is actually using. In this case it supports only two levels (CONFIG_SCHED_BOOK off) and therefore the hardware folded the two lower levels in the SYSIB response block. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
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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#include <asm/sysinfo.h>
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extern unsigned char cpu_core_id[NR_CPUS];
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extern cpumask_t cpu_core_map[NR_CPUS];
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static inline const struct cpumask *cpu_coregroup_mask(unsigned int cpu)
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{
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return &cpu_core_map[cpu];
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}
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#define topology_core_id(cpu) (cpu_core_id[cpu])
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#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
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#define mc_capable() (1)
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#ifdef CONFIG_SCHED_BOOK
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extern unsigned char cpu_book_id[NR_CPUS];
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extern cpumask_t cpu_book_map[NR_CPUS];
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static inline const struct cpumask *cpu_book_mask(unsigned int cpu)
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{
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return &cpu_book_map[cpu];
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}
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#define topology_book_id(cpu) (cpu_book_id[cpu])
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#define topology_book_cpumask(cpu) (&cpu_book_map[cpu])
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#endif /* CONFIG_SCHED_BOOK */
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int topology_set_cpu_management(int fc);
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void topology_schedule_update(void);
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void store_topology(struct sysinfo_15_1_x *info);
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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_BOOK_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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