| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_S390_TOPOLOGY_H |
| 3 | #define _ASM_S390_TOPOLOGY_H |
| 4 | |
| 5 | #include <linux/cpumask.h> |
| 6 | #include <asm/numa.h> |
| 7 | |
| 8 | struct sysinfo_15_1_x; |
| 9 | struct cpu; |
| 10 | |
| 11 | #ifdef CONFIG_SCHED_TOPOLOGY |
| 12 | |
| 13 | struct cpu_topology_s390 { |
| 14 | unsigned short thread_id; |
| 15 | unsigned short core_id; |
| 16 | unsigned short socket_id; |
| 17 | unsigned short book_id; |
| 18 | unsigned short drawer_id; |
| 19 | unsigned short node_id; |
| 20 | unsigned short dedicated : 1; |
| 21 | cpumask_t thread_mask; |
| 22 | cpumask_t core_mask; |
| 23 | cpumask_t book_mask; |
| 24 | cpumask_t drawer_mask; |
| 25 | }; |
| 26 | |
| 27 | extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; |
| 28 | extern cpumask_t cpus_with_topology; |
| 29 | |
| 30 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) |
| 31 | #define topology_thread_id(cpu) (cpu_topology[cpu].thread_id) |
| 32 | #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask) |
| 33 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) |
| 34 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) |
| 35 | #define topology_book_id(cpu) (cpu_topology[cpu].book_id) |
| 36 | #define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) |
| 37 | #define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id) |
| 38 | #define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask) |
| 39 | #define topology_cpu_dedicated(cpu) (cpu_topology[cpu].dedicated) |
| 40 | |
| 41 | #define mc_capable() 1 |
| 42 | |
| 43 | void topology_init_early(void); |
| 44 | int topology_cpu_init(struct cpu *); |
| 45 | int topology_set_cpu_management(int fc); |
| 46 | void topology_schedule_update(void); |
| 47 | void store_topology(struct sysinfo_15_1_x *info); |
| 48 | void topology_expect_change(void); |
| 49 | const struct cpumask *cpu_coregroup_mask(int cpu); |
| 50 | |
| 51 | #else /* CONFIG_SCHED_TOPOLOGY */ |
| 52 | |
| 53 | static inline void topology_init_early(void) { } |
| 54 | static inline void topology_schedule_update(void) { } |
| 55 | static inline int topology_cpu_init(struct cpu *cpu) { return 0; } |
| 56 | static inline int topology_cpu_dedicated(int cpu_nr) { return 0; } |
| 57 | static inline void topology_expect_change(void) { } |
| 58 | |
| 59 | #endif /* CONFIG_SCHED_TOPOLOGY */ |
| 60 | |
| 61 | #define POLARIZATION_UNKNOWN (-1) |
| 62 | #define POLARIZATION_HRZ (0) |
| 63 | #define POLARIZATION_VL (1) |
| 64 | #define POLARIZATION_VM (2) |
| 65 | #define POLARIZATION_VH (3) |
| 66 | |
| 67 | #define SD_BOOK_INIT SD_CPU_INIT |
| 68 | |
| 69 | #ifdef CONFIG_NUMA |
| 70 | |
| 71 | #define cpu_to_node cpu_to_node |
| 72 | static inline int cpu_to_node(int cpu) |
| 73 | { |
| 74 | return cpu_topology[cpu].node_id; |
| 75 | } |
| 76 | |
| 77 | /* Returns a pointer to the cpumask of CPUs on node 'node'. */ |
| 78 | #define cpumask_of_node cpumask_of_node |
| 79 | static inline const struct cpumask *cpumask_of_node(int node) |
| 80 | { |
| 81 | return &node_to_cpumask_map[node]; |
| 82 | } |
| 83 | |
| 84 | #define pcibus_to_node(bus) __pcibus_to_node(bus) |
| 85 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 86 | #else /* !CONFIG_NUMA */ |
| 87 | |
| 88 | #define numa_node_id numa_node_id |
| 89 | static inline int numa_node_id(void) |
| 90 | { |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | #endif /* CONFIG_NUMA */ |
| 95 | |
| 96 | #include <asm-generic/topology.h> |
| 97 | |
| 98 | #endif /* _ASM_S390_TOPOLOGY_H */ |