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