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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _ASM_ALPHA_TOPOLOGY_H |
3 | #define _ASM_ALPHA_TOPOLOGY_H | |
4 | ||
5 | #include <linux/smp.h> | |
6 | #include <linux/threads.h> | |
7 | #include <asm/machvec.h> | |
8 | ||
9 | #ifdef CONFIG_NUMA | |
10 | static inline int cpu_to_node(int cpu) | |
11 | { | |
12 | int node; | |
13 | ||
14 | if (!alpha_mv.cpuid_to_nid) | |
15 | return 0; | |
16 | ||
17 | node = alpha_mv.cpuid_to_nid(cpu); | |
18 | ||
19 | #ifdef DEBUG_NUMA | |
20 | BUG_ON(node < 0); | |
21 | #endif | |
22 | ||
23 | return node; | |
24 | } | |
25 | ||
2258a5bb RR |
26 | extern struct cpumask node_to_cpumask_map[]; |
27 | /* FIXME: This is dumb, recalculating every time. But simple. */ | |
28 | static const struct cpumask *cpumask_of_node(int node) | |
29 | { | |
30 | int cpu; | |
31 | ||
44c36aed AB |
32 | if (node == -1) |
33 | return cpu_all_mask; | |
34 | ||
2258a5bb RR |
35 | cpumask_clear(&node_to_cpumask_map[node]); |
36 | ||
37 | for_each_online_cpu(cpu) { | |
38 | if (cpu_to_node(cpu) == node) | |
39 | cpumask_set_cpu(cpu, node_to_cpumask_map[node]); | |
40 | } | |
41 | ||
42 | return &node_to_cpumask_map[node]; | |
43 | } | |
44 | ||
2258a5bb | 45 | #define cpumask_of_pcibus(bus) (cpu_online_mask) |
1da177e4 | 46 | |
1da177e4 | 47 | #endif /* !CONFIG_NUMA */ |
aa6b5446 | 48 | # include <asm-generic/topology.h> |
1da177e4 LT |
49 | |
50 | #endif /* _ASM_ALPHA_TOPOLOGY_H */ |