topology.h

 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
13extern cpumask_t cpus_on_node[];
14
15#define cpumask_of_node(node)  ((node) == NUMA_NO_NODE ? cpu_all_mask : &cpus_on_node[node])
16
17struct pci_bus;
18extern int pcibus_to_node(struct pci_bus *);
19
20#define cpumask_of_pcibus(bus)	(cpu_online_mask)
21
22int __node_distance(int from, int to);
23#define node_distance(from, to) __node_distance(from, to)
24
25#else
26#define pcibus_to_node(bus)	0
27#endif
28
29#ifdef CONFIG_SMP
30/*
31 * Return cpus that shares the last level cache.
32 */
33static inline const struct cpumask *cpu_coregroup_mask(int cpu)
34{
35	return &cpu_llc_shared_map[cpu];
36}
37
38#define topology_physical_package_id(cpu)	(cpu_data[cpu].package)
39#define topology_core_id(cpu)			(cpu_data[cpu].core)
40#define topology_core_cpumask(cpu)		(&cpu_core_map[cpu])
41#define topology_sibling_cpumask(cpu)		(&cpu_sibling_map[cpu])
42#endif
43
44#include <asm-generic/topology.h>
45
46static inline void arch_fix_phys_package_id(int num, u32 slot) { }
47#endif /* __ASM_TOPOLOGY_H */