| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 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 | |
| 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 | |
| 32 | if (node == -1) |
| 33 | return cpu_all_mask; |
| 34 | |
| 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 | |
| 45 | #define cpumask_of_pcibus(bus) (cpu_online_mask) |
| 46 | |
| 47 | #endif /* !CONFIG_NUMA */ |
| 48 | # include <asm-generic/topology.h> |
| 49 | |
| 50 | #endif /* _ASM_ALPHA_TOPOLOGY_H */ |