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TOMOYO Linux Cross Reference
Linux/arch/sparc/include/asm/topology_64.h

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  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 */
 66 

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