| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_S390_TOPOLOGY_H |
| #define _ASM_S390_TOPOLOGY_H |
| |
| #include <linux/cpumask.h> |
| #include <asm/numa.h> |
| |
| struct sysinfo_15_1_x; |
| struct cpu; |
| |
| #ifdef CONFIG_SCHED_TOPOLOGY |
| |
| struct cpu_topology_s390 { |
| unsigned short thread_id; |
| unsigned short core_id; |
| unsigned short socket_id; |
| unsigned short book_id; |
| unsigned short drawer_id; |
| unsigned short dedicated : 1; |
| int booted_cores; |
| cpumask_t thread_mask; |
| cpumask_t core_mask; |
| cpumask_t book_mask; |
| cpumask_t drawer_mask; |
| }; |
| |
| extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; |
| |
| #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) |
| #define topology_thread_id(cpu) (cpu_topology[cpu].thread_id) |
| #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask) |
| #define topology_core_id(cpu) (cpu_topology[cpu].core_id) |
| #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) |
| #define topology_book_id(cpu) (cpu_topology[cpu].book_id) |
| #define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) |
| #define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) |
| #define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) |
| #define topology_cpu_dedicated(cpu) (cpu_topology[cpu].dedicated) |
| #define topology_booted_cores(cpu) (cpu_topology[cpu].booted_cores) |
| |
| #define mc_capable() 1 |
| |
| void topology_init_early(void); |
| int topology_cpu_init(struct cpu *); |
| int topology_set_cpu_management(int fc); |
| void topology_schedule_update(void); |
| void store_topology(struct sysinfo_15_1_x *info); |
| void update_cpu_masks(void); |
| void topology_expect_change(void); |
| const struct cpumask *cpu_coregroup_mask(int cpu); |
| |
| #else /* CONFIG_SCHED_TOPOLOGY */ |
| |
| static inline void topology_init_early(void) { } |
| static inline void topology_schedule_update(void) { } |
| static inline int topology_cpu_init(struct cpu *cpu) { return 0; } |
| static inline int topology_cpu_dedicated(int cpu_nr) { return 0; } |
| static inline int topology_booted_cores(int cpu_nr) { return 1; } |
| static inline void update_cpu_masks(void) { } |
| static inline void topology_expect_change(void) { } |
| |
| #endif /* CONFIG_SCHED_TOPOLOGY */ |
| |
| #define POLARIZATION_UNKNOWN (-1) |
| #define POLARIZATION_HRZ (0) |
| #define POLARIZATION_VL (1) |
| #define POLARIZATION_VM (2) |
| #define POLARIZATION_VH (3) |
| |
| #define SD_BOOK_INIT SD_CPU_INIT |
| |
| #ifdef CONFIG_NUMA |
| |
| #define cpu_to_node cpu_to_node |
| static inline int cpu_to_node(int cpu) |
| { |
| return 0; |
| } |
| |
| /* Returns a pointer to the cpumask of CPUs on node 'node'. */ |
| #define cpumask_of_node cpumask_of_node |
| static inline const struct cpumask *cpumask_of_node(int node) |
| { |
| return cpu_possible_mask; |
| } |
| |
| #define pcibus_to_node(bus) __pcibus_to_node(bus) |
| |
| #define node_distance(a, b) __node_distance(a, b) |
| static inline int __node_distance(int a, int b) |
| { |
| return 0; |
| } |
| |
| #else /* !CONFIG_NUMA */ |
| |
| #define numa_node_id numa_node_id |
| static inline int numa_node_id(void) |
| { |
| return 0; |
| } |
| |
| #endif /* CONFIG_NUMA */ |
| |
| #include <asm-generic/topology.h> |
| |
| #endif /* _ASM_S390_TOPOLOGY_H */ |