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136 lines
3.0 KiB
136 lines
3.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_POWERPC_TOPOLOGY_H |
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#define _ASM_POWERPC_TOPOLOGY_H |
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#ifdef __KERNEL__ |
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struct device; |
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struct device_node; |
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struct drmem_lmb; |
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#ifdef CONFIG_NUMA |
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/* |
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* If zone_reclaim_mode is enabled, a RECLAIM_DISTANCE of 10 will mean that |
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* all zones on all nodes will be eligible for zone_reclaim(). |
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*/ |
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#define RECLAIM_DISTANCE 10 |
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#include <asm/mmzone.h> |
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#define cpumask_of_node(node) ((node) == -1 ? \ |
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cpu_all_mask : \ |
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node_to_cpumask_map[node]) |
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struct pci_bus; |
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#ifdef CONFIG_PCI |
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extern int pcibus_to_node(struct pci_bus *bus); |
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#else |
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static inline int pcibus_to_node(struct pci_bus *bus) |
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{ |
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return -1; |
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} |
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#endif |
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#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
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cpu_all_mask : \ |
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cpumask_of_node(pcibus_to_node(bus))) |
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extern int cpu_distance(__be32 *cpu1_assoc, __be32 *cpu2_assoc); |
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extern int __node_distance(int, int); |
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#define node_distance(a, b) __node_distance(a, b) |
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extern void __init dump_numa_cpu_topology(void); |
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extern int sysfs_add_device_to_node(struct device *dev, int nid); |
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extern void sysfs_remove_device_from_node(struct device *dev, int nid); |
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static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node) |
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{ |
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numa_cpu_lookup_table[cpu] = node; |
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} |
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static inline int early_cpu_to_node(int cpu) |
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{ |
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int nid; |
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nid = numa_cpu_lookup_table[cpu]; |
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/* |
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* Fall back to node 0 if nid is unset (it should be, except bugs). |
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* This allows callers to safely do NODE_DATA(early_cpu_to_node(cpu)). |
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*/ |
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return (nid < 0) ? 0 : nid; |
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} |
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int of_drconf_to_nid_single(struct drmem_lmb *lmb); |
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#else |
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static inline int early_cpu_to_node(int cpu) { return 0; } |
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static inline void dump_numa_cpu_topology(void) {} |
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static inline int sysfs_add_device_to_node(struct device *dev, int nid) |
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{ |
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return 0; |
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} |
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static inline void sysfs_remove_device_from_node(struct device *dev, |
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int nid) |
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{ |
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} |
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static inline void update_numa_cpu_lookup_table(unsigned int cpu, int node) {} |
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static inline int cpu_distance(__be32 *cpu1_assoc, __be32 *cpu2_assoc) |
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{ |
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return 0; |
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} |
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static inline int of_drconf_to_nid_single(struct drmem_lmb *lmb) |
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{ |
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return first_online_node; |
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} |
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#endif /* CONFIG_NUMA */ |
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#if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR) |
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extern int find_and_online_cpu_nid(int cpu); |
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extern int cpu_to_coregroup_id(int cpu); |
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#else |
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static inline int find_and_online_cpu_nid(int cpu) |
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{ |
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return 0; |
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} |
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static inline int cpu_to_coregroup_id(int cpu) |
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{ |
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#ifdef CONFIG_SMP |
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return cpu_to_core_id(cpu); |
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#else |
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return 0; |
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#endif |
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} |
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#endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */ |
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#include <asm-generic/topology.h> |
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#ifdef CONFIG_SMP |
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#include <asm/cputable.h> |
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#ifdef CONFIG_PPC64 |
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#include <asm/smp.h> |
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#define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu)) |
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#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
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#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) |
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#define topology_core_id(cpu) (cpu_to_core_id(cpu)) |
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#endif |
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#endif |
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#endif /* __KERNEL__ */ |
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#endif /* _ASM_POWERPC_TOPOLOGY_H */
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