projects / people / arne_f / kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 */ |