diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/topology.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-alpha/topology.h')
-rw-r--r-- | include/asm-alpha/topology.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-alpha/topology.h b/include/asm-alpha/topology.h new file mode 100644 index 000000000000..eb740e280d9c --- /dev/null +++ b/include/asm-alpha/topology.h | |||
@@ -0,0 +1,48 @@ | |||
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 */ | ||