1 #ifndef _CPU_TOPOLOGY_H_
2 #define _CPU_TOPOLOGY_H_
6 /* CPU TOPOLOGY DATA AND FUNCTIONS */
8 struct cpu_node * parent_node;
9 struct cpu_node * child_node[MAXCPU];
13 uint8_t compute_unit_id; /* AMD compute unit ID */
15 typedef struct cpu_node cpu_node_t;
17 extern int cpu_topology_levels_number;
18 extern cpu_node_t *root_cpu_node;
20 cpumask_t get_cpumask_from_level(int cpuid, uint8_t level_type);
21 cpu_node_t *get_cpu_node_by_cpuid(int cpuid);
25 /* Level type for CPU siblings */
26 #define PACKAGE_LEVEL 1
29 #define THREAD_LEVEL 4
31 #define CPU_ISSET(n, p) ((CPUMASK(n) & p) != 0)
33 #define CPUSET_FOREACH(cpu, mask) \
34 for ((cpu) = 0; (cpu) < ncpus; (cpu)++) \
35 if (CPU_ISSET(cpu, mask))
39 #endif /* _CPU_TOPOLOGY_H_ */