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 extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; 26 extern cpumask_t cpus_with_topology; 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) 37 38 #define mc_capable() 1 39 40 void topology_init_early(void); 41 int topology_cpu_init(struct cpu *); 42 int topology_set_cpu_management(int fc); 43 void topology_schedule_update(void); 44 void store_topology(struct sysinfo_15_1_x *info); 45 void topology_expect_change(void); 46 const struct cpumask *cpu_coregroup_mask(int cpu); 47 48 #else /* CONFIG_SCHED_TOPOLOGY */ 49 50 static inline void topology_init_early(void) { } 51 static inline void topology_schedule_update(void) { } 52 static inline int topology_cpu_init(struct cpu *cpu) { return 0; } 53 static inline void topology_expect_change(void) { } 54 55 #endif /* CONFIG_SCHED_TOPOLOGY */ 56 57 #define POLARIZATION_UNKNOWN (-1) 58 #define POLARIZATION_HRZ (0) 59 #define POLARIZATION_VL (1) 60 #define POLARIZATION_VM (2) 61 #define POLARIZATION_VH (3) 62 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 { 70 return cpu_topology[cpu].node_id; 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 { 77 return &node_to_cpumask_map[node]; 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 */ 99 100 #include <asm-generic/topology.h> 101 102 #endif /* _ASM_S390_TOPOLOGY_H */ 103