blob: 420ccde6b916a31f8d601d46e601a3062bfc658b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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
9static 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
25static inline cpumask_t node_to_cpumask(int node)
26{
27 cpumask_t node_cpu_mask = CPU_MASK_NONE;
28 int cpu;
29
Andrew Morton394e3902006-03-23 03:01:05 -080030 for_each_online_cpu(cpu) {
31 if (cpu_to_node(cpu) == node)
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 cpu_set(cpu, node_cpu_mask);
33 }
34
35#ifdef DEBUG_NUMA
36 printk("node %d: cpu_mask: %016lx\n", node, node_cpu_mask);
37#endif
38
39 return node_cpu_mask;
40}
41
42#define pcibus_to_cpumask(bus) (cpu_online_map)
43
44#else /* CONFIG_NUMA */
45# include <asm-generic/topology.h>
46#endif /* !CONFIG_NUMA */
47
48#endif /* _ASM_ALPHA_TOPOLOGY_H */