arch/sparc/include/asm/topology_64.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_SPARC64_TOPOLOGY_H
   3 #define _ASM_SPARC64_TOPOLOGY_H
   4
   5 #ifdef CONFIG_NUMA
   6
   7 #include <asm/mmzone.h>
   8
   9 static inline int cpu_to_node(int cpu)
  10 {
  11         return numa_cpu_lookup_table[cpu];
  12 }
  13
  14 #define cpumask_of_node(node) ((node) == -1 ?                           \
  15                                cpu_all_mask :                           \
  16                                &numa_cpumask_lookup_table[node])
  17
  18 struct pci_bus;
  19 #ifdef CONFIG_PCI
  20 int pcibus_to_node(struct pci_bus *pbus);
  21 #else
  22 static inline int pcibus_to_node(struct pci_bus *pbus)
  23 {
  24         return -1;
  25 }
  26 #endif
  27
  28 #define cpumask_of_pcibus(bus)  \
  29         (pcibus_to_node(bus) == -1 ? \
  30          cpu_all_mask : \
  31          cpumask_of_node(pcibus_to_node(bus)))
  32
  33 int __node_distance(int, int);
  34 #define node_distance(a, b) __node_distance(a, b)
  35
  36 #else /* CONFIG_NUMA */
  37
  38 #include <asm-generic/topology.h>
  39
  40 #endif /* !(CONFIG_NUMA) */
  41
  42 #ifdef CONFIG_SMP
  43
  44 #include <asm/cpudata.h>
  45
  46 #define topology_physical_package_id(cpu)       (cpu_data(cpu).proc_id)
  47 #define topology_core_id(cpu)                   (cpu_data(cpu).core_id)
  48 #define topology_core_cpumask(cpu)              (&cpu_core_sib_map[cpu])
  49 #define topology_core_cache_cpumask(cpu)        (&cpu_core_sib_cache_map[cpu])
  50 #define topology_sibling_cpumask(cpu)           (&per_cpu(cpu_sibling_map, cpu))
  51 #endif /* CONFIG_SMP */
  52
  53 extern cpumask_t cpu_core_map[NR_CPUS];
  54 extern cpumask_t cpu_core_sib_map[NR_CPUS];
  55 extern cpumask_t cpu_core_sib_cache_map[NR_CPUS];
  56
  57 /**
  58  * Return cores that shares the last level cache.
  59  */
  60 static inline const struct cpumask *cpu_coregroup_mask(int cpu)
  61 {
  62         return &cpu_core_sib_cache_map[cpu];
  63 }
  64
  65 #endif /* _ASM_SPARC64_TOPOLOGY_H */