arch/loongarch/include/asm/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
  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 */