arch/s390/include/asm/topology.h

   1 #ifndef _ASM_S390_TOPOLOGY_H
   2 #define _ASM_S390_TOPOLOGY_H
   3
   4 #include <linux/cpumask.h>
   5
   6 struct sysinfo_15_1_x;
   7 struct cpu;
   8
   9 #ifdef CONFIG_SCHED_BOOK
  10
  11 struct cpu_topology_s390 {
  12         unsigned short thread_id;
  13         unsigned short core_id;
  14         unsigned short socket_id;
  15         unsigned short book_id;
  16         cpumask_t thread_mask;
  17         cpumask_t core_mask;
  18         cpumask_t book_mask;
  19 };
  20
  21 DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
  22
  23 #define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
  24 #define topology_thread_id(cpu)           (per_cpu(cpu_topology, cpu).thread_id)
  25 #define topology_sibling_cpumask(cpu) \
  26                 (&per_cpu(cpu_topology, cpu).thread_mask)
  27 #define topology_core_id(cpu)             (per_cpu(cpu_topology, cpu).core_id)
  28 #define topology_core_cpumask(cpu)        (&per_cpu(cpu_topology, cpu).core_mask)
  29 #define topology_book_id(cpu)             (per_cpu(cpu_topology, cpu).book_id)
  30 #define topology_book_cpumask(cpu)        (&per_cpu(cpu_topology, cpu).book_mask)
  31
  32 #define mc_capable() 1
  33
  34 int topology_cpu_init(struct cpu *);
  35 int topology_set_cpu_management(int fc);
  36 void topology_schedule_update(void);
  37 void store_topology(struct sysinfo_15_1_x *info);
  38 void topology_expect_change(void);
  39 const struct cpumask *cpu_coregroup_mask(int cpu);
  40
  41 #else /* CONFIG_SCHED_BOOK */
  42
  43 static inline void topology_schedule_update(void) { }
  44 static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
  45 static inline void topology_expect_change(void) { }
  46
  47 #endif /* CONFIG_SCHED_BOOK */
  48
  49 #define POLARIZATION_UNKNOWN    (-1)
  50 #define POLARIZATION_HRZ        (0)
  51 #define POLARIZATION_VL         (1)
  52 #define POLARIZATION_VM         (2)
  53 #define POLARIZATION_VH         (3)
  54
  55 #include <asm-generic/topology.h>
  56
  57 #endif /* _ASM_S390_TOPOLOGY_H */