d68bddb732
Increase cpu topology change poll frequency if a change is anticipated. Otherwise a user might be a bit confused to have to wait up to a minute in order to see a change this should be visible immediatly. However there is no guarantee that the change will happen during the time frame the poll frequency is increased. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
84 lines
1.8 KiB
C
84 lines
1.8 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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struct cpu;
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#ifdef CONFIG_SCHED_BOOK
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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(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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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(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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int topology_cpu_init(struct 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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void store_topology(struct sysinfo_15_1_x *info);
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void topology_expect_change(void);
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#else /* CONFIG_SCHED_BOOK */
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static inline void topology_schedule_update(void) { }
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static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
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static inline void topology_expect_change(void) { }
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#endif /* CONFIG_SCHED_BOOK */
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#define POLARIZATION_UNKNOWN (-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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extern int cpu_polarization[];
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static inline void cpu_set_polarization(int cpu, int val)
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{
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#ifdef CONFIG_SCHED_BOOK
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cpu_polarization[cpu] = val;
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#endif
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}
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static inline int cpu_read_polarization(int cpu)
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{
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#ifdef CONFIG_SCHED_BOOK
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return cpu_polarization[cpu];
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#else
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return POLARIZATION_HRZ;
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#endif
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}
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#ifdef CONFIG_SCHED_BOOK
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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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