1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef _ASM_S390_TOPOLOGY_H
  3#define _ASM_S390_TOPOLOGY_H
  4
  5#include <linux/cpumask.h>
  6#include <asm/numa.h>
  7
  8struct sysinfo_15_1_x;
  9struct cpu;
 10
 11#ifdef CONFIG_SCHED_TOPOLOGY
 12
 13struct cpu_topology_s390 {
 14	unsigned short thread_id;
 15	unsigned short core_id;
 16	unsigned short socket_id;
 17	unsigned short book_id;
 18	unsigned short drawer_id;
 19	unsigned short dedicated : 1;
 20	int booted_cores;
 21	cpumask_t thread_mask;
 22	cpumask_t core_mask;
 23	cpumask_t book_mask;
 24	cpumask_t drawer_mask;
 25};
 26
 27extern struct cpu_topology_s390 cpu_topology[NR_CPUS];
 28
 29#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id)
 30#define topology_thread_id(cpu)		  (cpu_topology[cpu].thread_id)
 31#define topology_sibling_cpumask(cpu)	  (&cpu_topology[cpu].thread_mask)
 32#define topology_core_id(cpu)		  (cpu_topology[cpu].core_id)
 33#define topology_core_cpumask(cpu)	  (&cpu_topology[cpu].core_mask)
 34#define topology_book_id(cpu)		  (cpu_topology[cpu].book_id)
 35#define topology_book_cpumask(cpu)	  (&cpu_topology[cpu].book_mask)
 36#define topology_drawer_id(cpu)		  (cpu_topology[cpu].drawer_id)
 37#define topology_drawer_cpumask(cpu)	  (&cpu_topology[cpu].drawer_mask)
 38#define topology_cpu_dedicated(cpu)	  (cpu_topology[cpu].dedicated)
 39#define topology_booted_cores(cpu)	  (cpu_topology[cpu].booted_cores)
 40
 41#define mc_capable() 1
 42
 43void topology_init_early(void);
 
 
 
 
 
 
 
 
 
 44int topology_cpu_init(struct cpu *);
 45int topology_set_cpu_management(int fc);
 46void topology_schedule_update(void);
 47void store_topology(struct sysinfo_15_1_x *info);
 48void update_cpu_masks(void);
 49void topology_expect_change(void);
 50const struct cpumask *cpu_coregroup_mask(int cpu);
 51
 52#else /* CONFIG_SCHED_TOPOLOGY */
 53
 54static inline void topology_init_early(void) { }
 55static inline void topology_schedule_update(void) { }
 56static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
 57static inline int topology_cpu_dedicated(int cpu_nr) { return 0; }
 58static inline int topology_booted_cores(int cpu_nr) { return 1; }
 59static inline void update_cpu_masks(void) { }
 60static inline void topology_expect_change(void) { }
 61
 62#endif /* CONFIG_SCHED_TOPOLOGY */
 63
 64#define POLARIZATION_UNKNOWN	(-1)
 65#define POLARIZATION_HRZ	(0)
 66#define POLARIZATION_VL		(1)
 67#define POLARIZATION_VM		(2)
 68#define POLARIZATION_VH		(3)
 69
 70#define CPU_CAPACITY_HIGH	SCHED_CAPACITY_SCALE
 71#define CPU_CAPACITY_LOW	(SCHED_CAPACITY_SCALE >> 3)
 72
 73#define SD_BOOK_INIT	SD_CPU_INIT
 74
 75#ifdef CONFIG_NUMA
 76
 77#define cpu_to_node cpu_to_node
 78static inline int cpu_to_node(int cpu)
 79{
 80	return 0;
 81}
 82
 83/* Returns a pointer to the cpumask of CPUs on node 'node'. */
 84#define cpumask_of_node cpumask_of_node
 85static inline const struct cpumask *cpumask_of_node(int node)
 86{
 87	return cpu_possible_mask;
 88}
 89
 90#define pcibus_to_node(bus) __pcibus_to_node(bus)
 91
 92#else /* !CONFIG_NUMA */
 93
 94#define numa_node_id numa_node_id
 95static inline int numa_node_id(void)
 96{
 97	return 0;
 98}
 99
100#endif /* CONFIG_NUMA */
101
102#include <asm-generic/topology.h>
103
104#endif /* _ASM_S390_TOPOLOGY_H */

 
 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 core_id;
13	unsigned short socket_id;
14	unsigned short book_id;
 
 
 
 
15	cpumask_t core_mask;
16	cpumask_t book_mask;
 
17};
18
19extern struct cpu_topology_s390 cpu_topology[NR_CPUS];
20
21#define topology_physical_package_id(cpu)	(cpu_topology[cpu].socket_id)
22#define topology_core_id(cpu)			(cpu_topology[cpu].core_id)
23#define topology_core_cpumask(cpu)		(&cpu_topology[cpu].core_mask)
24#define topology_book_id(cpu)			(cpu_topology[cpu].book_id)
25#define topology_book_cpumask(cpu)		(&cpu_topology[cpu].book_mask)
 
 
 
 
 
 
26
27#define mc_capable() 1
28
29static inline const struct cpumask *cpu_coregroup_mask(int cpu)
30{
31	return &cpu_topology[cpu].core_mask;
32}
33
34static inline const struct cpumask *cpu_book_mask(int cpu)
35{
36	return &cpu_topology[cpu].book_mask;
37}
38
39int topology_cpu_init(struct cpu *);
40int topology_set_cpu_management(int fc);
41void topology_schedule_update(void);
42void store_topology(struct sysinfo_15_1_x *info);
 
43void topology_expect_change(void);
 
44
45#else /* CONFIG_SCHED_BOOK */
46
 
47static inline void topology_schedule_update(void) { }
48static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
 
 
 
49static inline void topology_expect_change(void) { }
50
51#endif /* CONFIG_SCHED_BOOK */
52
53#define POLARIZATION_UNKNOWN	(-1)
54#define POLARIZATION_HRZ	(0)
55#define POLARIZATION_VL		(1)
56#define POLARIZATION_VM		(2)
57#define POLARIZATION_VH		(3)
58
59#ifdef CONFIG_SCHED_BOOK
60void s390_init_cpu_topology(void);
61#else
62static inline void s390_init_cpu_topology(void)
 
 
 
 
 
63{
64};
65#endif
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
66
67#define SD_BOOK_INIT	SD_CPU_INIT
68
69#include <asm-generic/topology.h>
70
71#endif /* _ASM_S390_TOPOLOGY_H */