1 #ifndef _ASM_ALPHA_TOPOLOGY_H 2 #define _ASM_ALPHA_TOPOLOGY_H 3 4 #include <linux/smp.h> 5 #include <linux/threads.h> 6 #include <asm/machvec.h> 7 8 #ifdef CONFIG_NUMA 9 static inline int cpu_to_node(int cpu) 10 { 11 int node; 12 13 if (!alpha_mv.cpuid_to_nid) 14 return 0; 15 16 node = alpha_mv.cpuid_to_nid(cpu); 17 18 #ifdef DEBUG_NUMA 19 BUG_ON(node < 0); 20 #endif 21 22 return node; 23 } 24 25 extern struct cpumask node_to_cpumask_map[]; 26 /* FIXME: This is dumb, recalculating every time. But simple. */ 27 static const struct cpumask *cpumask_of_node(int node) 28 { 29 int cpu; 30 31 cpumask_clear(&node_to_cpumask_map[node]); 32 33 for_each_online_cpu(cpu) { 34 if (cpu_to_node(cpu) == node) 35 cpumask_set_cpu(cpu, node_to_cpumask_map[node]); 36 } 37 38 return &node_to_cpumask_map[node]; 39 } 40 41 #define cpumask_of_pcibus(bus) (cpu_online_mask) 42 43 #endif /* !CONFIG_NUMA */ 44 # include <asm-generic/topology.h> 45 46 #endif /* _ASM_ALPHA_TOPOLOGY_H */ 47