1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_ARM_TOPOLOGY_H 3 #define _ASM_ARM_TOPOLOGY_H 4 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) 22 #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) 23 24 void init_cpu_topology(void); 25 void store_cpu_topology(unsigned int cpuid); 26 const struct cpumask *cpu_coregroup_mask(int cpu); 27 28 #include <linux/arch_topology.h> 29 30 /* Replace task scheduler's default frequency-invariant accounting */ 31 #define arch_scale_freq_capacity topology_get_freq_scale 32 33 /* Replace task scheduler's default cpu-invariant accounting */ 34 #define arch_scale_cpu_capacity topology_get_cpu_scale 35 36 /* Enable topology flag updates */ 37 #define arch_update_cpu_topology topology_update_cpu_topology 38 39 #else 40 41 static inline void init_cpu_topology(void) { } 42 static inline void store_cpu_topology(unsigned int cpuid) { } 43 44 #endif 45 46 #include <asm-generic/topology.h> 47 48 #endif /* _ASM_ARM_TOPOLOGY_H */ 49