| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | static inline cpumask_t node_to_cpumask(int node) |
| 26 | { |
| 27 | cpumask_t node_cpu_mask = CPU_MASK_NONE; |
| 28 | int cpu; |
| 29 | |
| 30 | for(cpu = 0; cpu < NR_CPUS; cpu++) { |
| 31 | if (cpu_online(cpu) && (cpu_to_node(cpu) == node)) |
| 32 | 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 */ |