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1da177e4 LT |
1 | #ifndef _ASM_S390_TOPOLOGY_H |
2 | #define _ASM_S390_TOPOLOGY_H | |
3 | ||
dbd70fb4 | 4 | #include <linux/cpumask.h> |
3a368f74 | 5 | #include <asm/numa.h> |
dbd70fb4 | 6 | |
78609132 | 7 | struct sysinfo_15_1_x; |
83a24e32 HC |
8 | struct cpu; |
9 | ||
10 | #ifdef CONFIG_SCHED_BOOK | |
11 | ||
d1e57508 | 12 | struct cpu_topology_s390 { |
10ad34bc | 13 | unsigned short thread_id; |
d1e57508 HC |
14 | unsigned short core_id; |
15 | unsigned short socket_id; | |
16 | unsigned short book_id; | |
3a368f74 | 17 | unsigned short node_id; |
10ad34bc | 18 | cpumask_t thread_mask; |
d1e57508 HC |
19 | cpumask_t core_mask; |
20 | cpumask_t book_mask; | |
21 | }; | |
22 | ||
da0c636e HC |
23 | DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology); |
24 | ||
25 | #define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id) | |
26 | #define topology_thread_id(cpu) (per_cpu(cpu_topology, cpu).thread_id) | |
06931e62 BG |
27 | #define topology_sibling_cpumask(cpu) \ |
28 | (&per_cpu(cpu_topology, cpu).thread_mask) | |
da0c636e HC |
29 | #define topology_core_id(cpu) (per_cpu(cpu_topology, cpu).core_id) |
30 | #define topology_core_cpumask(cpu) (&per_cpu(cpu_topology, cpu).core_mask) | |
31 | #define topology_book_id(cpu) (per_cpu(cpu_topology, cpu).book_id) | |
32 | #define topology_book_cpumask(cpu) (&per_cpu(cpu_topology, cpu).book_mask) | |
658e5ce7 | 33 | |
d1e57508 | 34 | #define mc_capable() 1 |
d00aa4e7 | 35 | |
83a24e32 | 36 | int topology_cpu_init(struct cpu *); |
c10fde0d HC |
37 | int topology_set_cpu_management(int fc); |
38 | void topology_schedule_update(void); | |
96f4a70d | 39 | void store_topology(struct sysinfo_15_1_x *info); |
d68bddb7 | 40 | void topology_expect_change(void); |
2dfd7476 | 41 | const struct cpumask *cpu_coregroup_mask(int cpu); |
c10fde0d | 42 | |
83a24e32 HC |
43 | #else /* CONFIG_SCHED_BOOK */ |
44 | ||
45 | static inline void topology_schedule_update(void) { } | |
46 | static inline int topology_cpu_init(struct cpu *cpu) { return 0; } | |
d68bddb7 | 47 | static inline void topology_expect_change(void) { } |
83a24e32 HC |
48 | |
49 | #endif /* CONFIG_SCHED_BOOK */ | |
50 | ||
51 | #define POLARIZATION_UNKNOWN (-1) | |
c10fde0d HC |
52 | #define POLARIZATION_HRZ (0) |
53 | #define POLARIZATION_VL (1) | |
54 | #define POLARIZATION_VM (2) | |
55 | #define POLARIZATION_VH (3) | |
56 | ||
3a368f74 PH |
57 | #define SD_BOOK_INIT SD_CPU_INIT |
58 | ||
59 | #ifdef CONFIG_NUMA | |
60 | ||
61 | #define cpu_to_node cpu_to_node | |
62 | static inline int cpu_to_node(int cpu) | |
63 | { | |
64 | return per_cpu(cpu_topology, cpu).node_id; | |
65 | } | |
66 | ||
67 | /* Returns a pointer to the cpumask of CPUs on node 'node'. */ | |
68 | #define cpumask_of_node cpumask_of_node | |
69 | static inline const struct cpumask *cpumask_of_node(int node) | |
70 | { | |
71 | return node_to_cpumask_map[node]; | |
72 | } | |
73 | ||
74 | /* | |
75 | * Returns the number of the node containing node 'node'. This | |
76 | * architecture is flat, so it is a pretty simple function! | |
77 | */ | |
78 | #define parent_node(node) (node) | |
79 | ||
80 | #define pcibus_to_node(bus) __pcibus_to_node(bus) | |
81 | ||
82 | #define node_distance(a, b) __node_distance(a, b) | |
83 | ||
84 | #else /* !CONFIG_NUMA */ | |
85 | ||
86 | #define numa_node_id numa_node_id | |
87 | static inline int numa_node_id(void) | |
88 | { | |
89 | return 0; | |
90 | } | |
91 | ||
92 | #endif /* CONFIG_NUMA */ | |
93 | ||
1da177e4 LT |
94 | #include <asm-generic/topology.h> |
95 | ||
96 | #endif /* _ASM_S390_TOPOLOGY_H */ |