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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _ASM_S390_TOPOLOGY_H |
3 | #define _ASM_S390_TOPOLOGY_H | |
4 | ||
dbd70fb4 | 5 | #include <linux/cpumask.h> |
3a368f74 | 6 | #include <asm/numa.h> |
dbd70fb4 | 7 | |
78609132 | 8 | struct sysinfo_15_1_x; |
83a24e32 HC |
9 | struct cpu; |
10 | ||
9236b4dd | 11 | #ifdef CONFIG_SCHED_TOPOLOGY |
83a24e32 | 12 | |
d1e57508 | 13 | struct cpu_topology_s390 { |
10ad34bc | 14 | unsigned short thread_id; |
d1e57508 HC |
15 | unsigned short core_id; |
16 | unsigned short socket_id; | |
17 | unsigned short book_id; | |
adac0f1e | 18 | unsigned short drawer_id; |
3a368f74 | 19 | unsigned short node_id; |
1887aa07 | 20 | unsigned short dedicated : 1; |
10ad34bc | 21 | cpumask_t thread_mask; |
d1e57508 HC |
22 | cpumask_t core_mask; |
23 | cpumask_t book_mask; | |
adac0f1e | 24 | cpumask_t drawer_mask; |
d1e57508 HC |
25 | }; |
26 | ||
30fc4ca2 | 27 | extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; |
8c910580 | 28 | extern cpumask_t cpus_with_topology; |
30fc4ca2 HC |
29 | |
30 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) | |
31 | #define topology_thread_id(cpu) (cpu_topology[cpu].thread_id) | |
32 | #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask) | |
33 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) | |
34 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) | |
35 | #define topology_book_id(cpu) (cpu_topology[cpu].book_id) | |
36 | #define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) | |
37 | #define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) | |
38 | #define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) | |
1887aa07 | 39 | #define topology_cpu_dedicated(cpu) (cpu_topology[cpu].dedicated) |
658e5ce7 | 40 | |
d1e57508 | 41 | #define mc_capable() 1 |
d00aa4e7 | 42 | |
8c910580 | 43 | void topology_init_early(void); |
83a24e32 | 44 | int topology_cpu_init(struct cpu *); |
c10fde0d HC |
45 | int topology_set_cpu_management(int fc); |
46 | void topology_schedule_update(void); | |
96f4a70d | 47 | void store_topology(struct sysinfo_15_1_x *info); |
d68bddb7 | 48 | void topology_expect_change(void); |
2dfd7476 | 49 | const struct cpumask *cpu_coregroup_mask(int cpu); |
c10fde0d | 50 | |
9236b4dd | 51 | #else /* CONFIG_SCHED_TOPOLOGY */ |
83a24e32 | 52 | |
8c910580 | 53 | static inline void topology_init_early(void) { } |
83a24e32 HC |
54 | static inline void topology_schedule_update(void) { } |
55 | static inline int topology_cpu_init(struct cpu *cpu) { return 0; } | |
38389ec8 | 56 | static inline int topology_cpu_dedicated(int cpu_nr) { return 0; } |
d68bddb7 | 57 | static inline void topology_expect_change(void) { } |
83a24e32 | 58 | |
9236b4dd | 59 | #endif /* CONFIG_SCHED_TOPOLOGY */ |
83a24e32 HC |
60 | |
61 | #define POLARIZATION_UNKNOWN (-1) | |
c10fde0d HC |
62 | #define POLARIZATION_HRZ (0) |
63 | #define POLARIZATION_VL (1) | |
64 | #define POLARIZATION_VM (2) | |
65 | #define POLARIZATION_VH (3) | |
66 | ||
3a368f74 PH |
67 | #define SD_BOOK_INIT SD_CPU_INIT |
68 | ||
69 | #ifdef CONFIG_NUMA | |
70 | ||
71 | #define cpu_to_node cpu_to_node | |
72 | static inline int cpu_to_node(int cpu) | |
73 | { | |
30fc4ca2 | 74 | return cpu_topology[cpu].node_id; |
3a368f74 PH |
75 | } |
76 | ||
77 | /* Returns a pointer to the cpumask of CPUs on node 'node'. */ | |
78 | #define cpumask_of_node cpumask_of_node | |
79 | static inline const struct cpumask *cpumask_of_node(int node) | |
80 | { | |
22be9cd9 | 81 | return &node_to_cpumask_map[node]; |
3a368f74 PH |
82 | } |
83 | ||
3a368f74 PH |
84 | #define pcibus_to_node(bus) __pcibus_to_node(bus) |
85 | ||
86 | #define node_distance(a, b) __node_distance(a, b) | |
87 | ||
88 | #else /* !CONFIG_NUMA */ | |
89 | ||
90 | #define numa_node_id numa_node_id | |
91 | static inline int numa_node_id(void) | |
92 | { | |
93 | return 0; | |
94 | } | |
95 | ||
96 | #endif /* CONFIG_NUMA */ | |
97 | ||
1da177e4 LT |
98 | #include <asm-generic/topology.h> |
99 | ||
100 | #endif /* _ASM_S390_TOPOLOGY_H */ |