projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| f6e763b9 MB |
2 | #ifndef __ASM_TOPOLOGY_H |
| 3 | #define __ASM_TOPOLOGY_H | |
| 4 | ||
| f6e763b9 MB |
5 | #include <linux/cpumask.h> |
| 6 | ||
| 7 | struct cpu_topology { | |
| 8 | int thread_id; | |
| 9 | int core_id; | |
| 10 | int cluster_id; | |
| 11 | cpumask_t thread_sibling; | |
| 12 | cpumask_t core_sibling; | |
| 13 | }; | |
| 14 | ||
| 15 | extern struct cpu_topology cpu_topology[NR_CPUS]; | |
| 16 | ||
| 17 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].cluster_id) | |
| 18 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) | |
| 19 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) | |
| 06931e62 | 20 | #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) |
| f6e763b9 | 21 | |
| f6e763b9 MB |
22 | void init_cpu_topology(void); |
| 23 | void store_cpu_topology(unsigned int cpuid); | |
| 24 | const struct cpumask *cpu_coregroup_mask(int cpu); | |
| 25 | ||
| 1a2db300 GK |
26 | #ifdef CONFIG_NUMA |
| 27 | ||
| 28 | struct pci_bus; | |
| 29 | int pcibus_to_node(struct pci_bus *bus); | |
| 30 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ | |
| 31 | cpu_all_mask : \ | |
| 32 | cpumask_of_node(pcibus_to_node(bus))) | |
| 33 | ||
| 34 | #endif /* CONFIG_NUMA */ | |
| 35 | ||
| f6e763b9 MB |
36 | #include <asm-generic/topology.h> |
| 37 | ||
| 38 | #endif /* _ASM_ARM_TOPOLOGY_H */ |