1#ifndef _ASM_POWERPC_TOPOLOGY_H
2#define _ASM_POWERPC_TOPOLOGY_H
3#ifdef __KERNEL__
4
5
6struct device;
7struct device_node;
8
9#ifdef CONFIG_NUMA
10
11/*
12 * If zone_reclaim_mode is enabled, a RECLAIM_DISTANCE of 10 will mean that
13 * all zones on all nodes will be eligible for zone_reclaim().
14 */
15#define RECLAIM_DISTANCE 10
16
17#include <asm/mmzone.h>
18
19#define parent_node(node)	(node)
20
21#define cpumask_of_node(node) ((node) == -1 ?				\
22			       cpu_all_mask :				\
23			       node_to_cpumask_map[node])
24
25struct pci_bus;
26#ifdef CONFIG_PCI
27extern int pcibus_to_node(struct pci_bus *bus);
28#else
29static inline int pcibus_to_node(struct pci_bus *bus)
30{
31	return -1;
32}
33#endif
34
35#define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ?		\
36				 cpu_all_mask :				\
37				 cpumask_of_node(pcibus_to_node(bus)))
38
39extern int __node_distance(int, int);
40#define node_distance(a, b) __node_distance(a, b)
41
42extern void __init dump_numa_cpu_topology(void);
43
44extern int sysfs_add_device_to_node(struct device *dev, int nid);
45extern void sysfs_remove_device_from_node(struct device *dev, int nid);
46
47#else
48
49static inline void dump_numa_cpu_topology(void) {}
50
51static inline int sysfs_add_device_to_node(struct device *dev, int nid)
52{
53	return 0;
54}
55
56static inline void sysfs_remove_device_from_node(struct device *dev,
57						int nid)
58{
59}
60#endif /* CONFIG_NUMA */
61
62#if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
63extern int start_topology_update(void);
64extern int stop_topology_update(void);
65extern int prrn_is_enabled(void);
66#else
67static inline int start_topology_update(void)
68{
69	return 0;
70}
71static inline int stop_topology_update(void)
72{
73	return 0;
74}
75static inline int prrn_is_enabled(void)
76{
77	return 0;
78}
79#endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
80
81#include <asm-generic/topology.h>
82
83#ifdef CONFIG_SMP
84#include <asm/cputable.h>
85
86#ifdef CONFIG_PPC64
87#include <asm/smp.h>
88
89#define topology_physical_package_id(cpu)	(cpu_to_chip_id(cpu))
90#define topology_thread_cpumask(cpu)	(per_cpu(cpu_sibling_map, cpu))
91#define topology_core_cpumask(cpu)	(per_cpu(cpu_core_map, cpu))
92#define topology_core_id(cpu)		(cpu_to_core_id(cpu))
93#endif
94#endif
95
96#endif /* __KERNEL__ */
97#endif	/* _ASM_POWERPC_TOPOLOGY_H */
98