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_TOPOLOGY 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 drawer_id; 18 unsigned short node_id; 19 cpumask_t thread_mask; 20 cpumask_t core_mask; 21 cpumask_t book_mask; 22 cpumask_t drawer_mask; 23 }; 24 25 DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology); 26 27 #define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id) 28 #define topology_thread_id(cpu) (per_cpu(cpu_topology, cpu).thread_id) 29 #define topology_sibling_cpumask(cpu) \ 30 (&per_cpu(cpu_topology, cpu).thread_mask) 31 #define topology_core_id(cpu) (per_cpu(cpu_topology, cpu).core_id) 32 #define topology_core_cpumask(cpu) (&per_cpu(cpu_topology, cpu).core_mask) 33 #define topology_book_id(cpu) (per_cpu(cpu_topology, cpu).book_id) 34 #define topology_book_cpumask(cpu) (&per_cpu(cpu_topology, cpu).book_mask) 35 #define topology_drawer_id(cpu) (per_cpu(cpu_topology, cpu).drawer_id) 36 #define topology_drawer_cpumask(cpu) (&per_cpu(cpu_topology, cpu).drawer_mask) 37 38 #define mc_capable() 1 39 40 int topology_cpu_init(struct cpu *); 41 int topology_set_cpu_management(int fc); 42 void topology_schedule_update(void); 43 void store_topology(struct sysinfo_15_1_x *info); 44 void topology_expect_change(void); 45 const struct cpumask *cpu_coregroup_mask(int cpu); 46 47 #else /* CONFIG_SCHED_TOPOLOGY */ 48 49 static inline void topology_schedule_update(void) { } 50 static inline int topology_cpu_init(struct cpu *cpu) { return 0; } 51 static inline void topology_expect_change(void) { } 52 53 #endif /* CONFIG_SCHED_TOPOLOGY */ 54 55 #define POLARIZATION_UNKNOWN (-1) 56 #define POLARIZATION_HRZ (0) 57 #define POLARIZATION_VL (1) 58 #define POLARIZATION_VM (2) 59 #define POLARIZATION_VH (3) 60 61 #define SD_BOOK_INIT SD_CPU_INIT 62 63 #ifdef CONFIG_NUMA 64 65 #define cpu_to_node cpu_to_node 66 static inline int cpu_to_node(int cpu) 67 { 68 return per_cpu(cpu_topology, cpu).node_id; 69 } 70 71 /* Returns a pointer to the cpumask of CPUs on node 'node'. */ 72 #define cpumask_of_node cpumask_of_node 73 static inline const struct cpumask *cpumask_of_node(int node) 74 { 75 return &node_to_cpumask_map[node]; 76 } 77 78 /* 79 * Returns the number of the node containing node 'node'. This 80 * architecture is flat, so it is a pretty simple function! 81 */ 82 #define parent_node(node) (node) 83 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 98 #include <asm-generic/topology.h> 99 100 #endif /* _ASM_S390_TOPOLOGY_H */ 101