1 #ifndef _ASM_S390_TOPOLOGY_H 2 #define _ASM_S390_TOPOLOGY_H 3 4 #include <linux/cpumask.h> 5 #include <asm/numa.h> 6 7 struct sysinfo_15_1_x; 8 struct cpu; 9 10 #ifdef CONFIG_SCHED_BOOK 11 12 struct cpu_topology_s390 { 13 unsigned short thread_id; 14 unsigned short core_id; 15 unsigned short socket_id; 16 unsigned short book_id; 17 unsigned short node_id; 18 cpumask_t thread_mask; 19 cpumask_t core_mask; 20 cpumask_t book_mask; 21 }; 22 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) 27 #define topology_sibling_cpumask(cpu) \ 28 (&per_cpu(cpu_topology, cpu).thread_mask) 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) 33 34 #define mc_capable() 1 35 36 int topology_cpu_init(struct cpu *); 37 int topology_set_cpu_management(int fc); 38 void topology_schedule_update(void); 39 void store_topology(struct sysinfo_15_1_x *info); 40 void topology_expect_change(void); 41 const struct cpumask *cpu_coregroup_mask(int cpu); 42 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; } 47 static inline void topology_expect_change(void) { } 48 49 #endif /* CONFIG_SCHED_BOOK */ 50 51 #define POLARIZATION_UNKNOWN (-1) 52 #define POLARIZATION_HRZ (0) 53 #define POLARIZATION_VL (1) 54 #define POLARIZATION_VM (2) 55 #define POLARIZATION_VH (3) 56 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 94 #include <asm-generic/topology.h> 95 96 #endif /* _ASM_S390_TOPOLOGY_H */ 97