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1da177e4 LT |
1 | #ifndef _ASM_ARM_TOPOLOGY_H |
2 | #define _ASM_ARM_TOPOLOGY_H | |
3 | ||
c9018aab VG |
4 | #ifdef CONFIG_ARM_CPU_TOPOLOGY |
5 | ||
6 | #include <linux/cpumask.h> | |
7 | ||
8 | struct cputopo_arm { | |
9 | int thread_id; | |
10 | int core_id; | |
11 | int socket_id; | |
12 | cpumask_t thread_sibling; | |
13 | cpumask_t core_sibling; | |
14 | }; | |
15 | ||
16 | extern struct cputopo_arm cpu_topology[NR_CPUS]; | |
17 | ||
18 | #define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) | |
19 | #define topology_core_id(cpu) (cpu_topology[cpu].core_id) | |
20 | #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) | |
21 | #define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) | |
22 | ||
23 | #define mc_capable() (cpu_topology[0].socket_id != -1) | |
24 | #define smt_capable() (cpu_topology[0].thread_id != -1) | |
25 | ||
26 | void init_cpu_topology(void); | |
27 | void store_cpu_topology(unsigned int cpuid); | |
28 | const struct cpumask *cpu_coregroup_mask(unsigned int cpu); | |
29 | ||
30 | #else | |
31 | ||
32 | static inline void init_cpu_topology(void) { } | |
33 | static inline void store_cpu_topology(unsigned int cpuid) { } | |
34 | ||
35 | #endif | |
36 | ||
1da177e4 LT |
37 | #include <asm-generic/topology.h> |
38 | ||
39 | #endif /* _ASM_ARM_TOPOLOGY_H */ |