1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
4 */
5 #ifndef __ASM_TOPOLOGY_H
6 #define __ASM_TOPOLOGY_H
7
8 #include <linux/smp.h>
9
10 #ifdef CONFIG_NUMA
11
12 extern cpumask_t cpus_on_node[];
13
14 #define cpumask_of_node(node) (&cpus_on_node[node])
15
16 struct pci_bus;
17 extern int pcibus_to_node(struct pci_bus *);
18
19 #define cpumask_of_pcibus(bus) (cpu_online_mask)
20
21 extern unsigned char node_distances[MAX_NUMNODES][MAX_NUMNODES];
22
23 void numa_set_distance(int from, int to, int distance);
24
25 #define node_distance(from, to) (node_distances[(from)][(to)])
26
27 #else
28 #define pcibus_to_node(bus) 0
29 #endif
30
31 #ifdef CONFIG_SMP
32 #define topology_physical_package_id(cpu) (cpu_data[cpu].package)
33 #define topology_core_id(cpu) (cpu_data[cpu].core)
34 #define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
35 #define topology_sibling_cpumask(cpu) (&cpu_sibling_map[cpu])
36 #endif
37
38 #include <asm-generic/topology.h>
39
40 static inline void arch_fix_phys_package_id(int num, u32 slot) { }
41 #endif /* __ASM_TOPOLOGY_H */
42
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