| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | #ifndef _ASM_ARM_TOPOLOGY_H |
| 3 | #define _ASM_ARM_TOPOLOGY_H |
| 4 | |
| Vincent Guittot | c9018aa | 2011-08-08 13:21:59 +0100 | [diff] [blame] | 5 | #ifdef CONFIG_ARM_CPU_TOPOLOGY |
| 6 | |
| 7 | #include <linux/cpumask.h> |
| 8 | |
| 9 | struct cputopo_arm { |
| 10 | int thread_id; |
| 11 | int core_id; |
| 12 | int socket_id; |
| 13 | cpumask_t thread_sibling; |
| 14 | cpumask_t core_sibling; |
| 15 | }; |
| 16 | |
| 17 | extern struct cputopo_arm cpu_topology[NR_CPUS]; |
| 18 | |
| 19 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) |
| 20 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) |
| 21 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) |
| Bartosz Golaszewski | 06931e6 | 2015-05-26 15:11:28 +0200 | [diff] [blame] | 22 | #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) |
| Vincent Guittot | c9018aa | 2011-08-08 13:21:59 +0100 | [diff] [blame] | 23 | |
| Vincent Guittot | c9018aa | 2011-08-08 13:21:59 +0100 | [diff] [blame] | 24 | void init_cpu_topology(void); |
| 25 | void store_cpu_topology(unsigned int cpuid); |
| Vincent Guittot | 4cbd6b1 | 2011-11-29 15:50:20 +0100 | [diff] [blame] | 26 | const struct cpumask *cpu_coregroup_mask(int cpu); |
| Vincent Guittot | c9018aa | 2011-08-08 13:21:59 +0100 | [diff] [blame] | 27 | |
| 28 | #else |
| 29 | |
| 30 | static inline void init_cpu_topology(void) { } |
| 31 | static inline void store_cpu_topology(unsigned int cpuid) { } |
| 32 | |
| 33 | #endif |
| 34 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <asm-generic/topology.h> |
| 36 | |
| 37 | #endif /* _ASM_ARM_TOPOLOGY_H */ |