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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 | ||
9236b4dd | 10 | #ifdef CONFIG_SCHED_TOPOLOGY |
83a24e32 | 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; | |
adac0f1e | 17 | unsigned short drawer_id; |
3a368f74 | 18 | unsigned short node_id; |
10ad34bc | 19 | cpumask_t thread_mask; |
d1e57508 HC |
20 | cpumask_t core_mask; |
21 | cpumask_t book_mask; | |
adac0f1e | 22 | cpumask_t drawer_mask; |
d1e57508 HC |
23 | }; |
24 | ||
30fc4ca2 | 25 | extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; |
8c910580 | 26 | extern cpumask_t cpus_with_topology; |
30fc4ca2 HC |
27 | |
28 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) | |
29 | #define topology_thread_id(cpu) (cpu_topology[cpu].thread_id) | |
30 | #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask) | |
31 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) | |
32 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) | |
33 | #define topology_book_id(cpu) (cpu_topology[cpu].book_id) | |
34 | #define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) | |
35 | #define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) | |
36 | #define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) | |
658e5ce7 | 37 | |
d1e57508 | 38 | #define mc_capable() 1 |
d00aa4e7 | 39 | |
8c910580 | 40 | void topology_init_early(void); |
83a24e32 | 41 | int topology_cpu_init(struct cpu *); |
c10fde0d HC |
42 | int topology_set_cpu_management(int fc); |
43 | void topology_schedule_update(void); | |
96f4a70d | 44 | void store_topology(struct sysinfo_15_1_x *info); |
d68bddb7 | 45 | void topology_expect_change(void); |
2dfd7476 | 46 | const struct cpumask *cpu_coregroup_mask(int cpu); |
c10fde0d | 47 | |
9236b4dd | 48 | #else /* CONFIG_SCHED_TOPOLOGY */ |
83a24e32 | 49 | |
8c910580 | 50 | static inline void topology_init_early(void) { } |
83a24e32 HC |
51 | static inline void topology_schedule_update(void) { } |
52 | static inline int topology_cpu_init(struct cpu *cpu) { return 0; } | |
d68bddb7 | 53 | static inline void topology_expect_change(void) { } |
83a24e32 | 54 | |
9236b4dd | 55 | #endif /* CONFIG_SCHED_TOPOLOGY */ |
83a24e32 HC |
56 | |
57 | #define POLARIZATION_UNKNOWN (-1) | |
c10fde0d HC |
58 | #define POLARIZATION_HRZ (0) |
59 | #define POLARIZATION_VL (1) | |
60 | #define POLARIZATION_VM (2) | |
61 | #define POLARIZATION_VH (3) | |
62 | ||
3a368f74 PH |
63 | #define SD_BOOK_INIT SD_CPU_INIT |
64 | ||
65 | #ifdef CONFIG_NUMA | |
66 | ||
67 | #define cpu_to_node cpu_to_node | |
68 | static inline int cpu_to_node(int cpu) | |
69 | { | |
30fc4ca2 | 70 | return cpu_topology[cpu].node_id; |
3a368f74 PH |
71 | } |
72 | ||
73 | /* Returns a pointer to the cpumask of CPUs on node 'node'. */ | |
74 | #define cpumask_of_node cpumask_of_node | |
75 | static inline const struct cpumask *cpumask_of_node(int node) | |
76 | { | |
22be9cd9 | 77 | return &node_to_cpumask_map[node]; |
3a368f74 PH |
78 | } |
79 | ||
80 | /* | |
81 | * Returns the number of the node containing node 'node'. This | |
82 | * architecture is flat, so it is a pretty simple function! | |
83 | */ | |
84 | #define parent_node(node) (node) | |
85 | ||
86 | #define pcibus_to_node(bus) __pcibus_to_node(bus) | |
87 | ||
88 | #define node_distance(a, b) __node_distance(a, b) | |
89 | ||
90 | #else /* !CONFIG_NUMA */ | |
91 | ||
92 | #define numa_node_id numa_node_id | |
93 | static inline int numa_node_id(void) | |
94 | { | |
95 | return 0; | |
96 | } | |
97 | ||
98 | #endif /* CONFIG_NUMA */ | |
99 | ||
1da177e4 LT |
100 | #include <asm-generic/topology.h> |
101 | ||
102 | #endif /* _ASM_S390_TOPOLOGY_H */ |