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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 #include <asm/numa.h>
12
13 extern cpumask_t cpus_on_node[];
14
15 #define cpumask_of_node(node)  (&cpus_on_node[node])
16
17 struct pci_bus;
18 extern int pcibus_to_node(struct pci_bus *);
19
20 #define cpumask_of_pcibus(bus)  (cpu_online_mask)
21
22 extern unsigned char node_distances[MAX_NUMNODES][MAX_NUMNODES];
23
24 void numa_set_distance(int from, int to, int distance);
25
26 #define node_distance(from, to) (node_distances[(from)][(to)])
27
28 #else
29 #define pcibus_to_node(bus)     0
30 #endif
31
32 #ifdef CONFIG_SMP
33 #define topology_physical_package_id(cpu)       (cpu_data[cpu].package)
34 #define topology_core_id(cpu)                   (cpu_data[cpu].core)
35 #define topology_core_cpumask(cpu)              (&cpu_core_map[cpu])
36 #define topology_sibling_cpumask(cpu)           (&cpu_sibling_map[cpu])
37 #endif
38
39 #include <asm-generic/topology.h>
40
41 static inline void arch_fix_phys_package_id(int num, u32 slot) { }
42 #endif /* __ASM_TOPOLOGY_H */
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