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Commit | Line | Data |
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dd56fdf2 | 1 | #ifndef _ASM_POWERPC_TOPOLOGY_H |
2 | #define _ASM_POWERPC_TOPOLOGY_H | |
88ced031 | 3 | #ifdef __KERNEL__ |
1da177e4 | 4 | |
1da177e4 | 5 | |
953039c8 JK |
6 | struct sys_device; |
7 | struct device_node; | |
8 | ||
1da177e4 LT |
9 | #ifdef CONFIG_NUMA |
10 | ||
27f10907 AB |
11 | /* |
12 | * Before going off node we want the VM to try and reclaim from the local | |
13 | * node. It does this if the remote distance is larger than RECLAIM_DISTANCE. | |
14 | * With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of | |
15 | * 20, we never reclaim and go off node straight away. | |
16 | * | |
17 | * To fix this we choose a smaller value of RECLAIM_DISTANCE. | |
18 | */ | |
19 | #define RECLAIM_DISTANCE 10 | |
20 | ||
dd56fdf2 | 21 | #include <asm/mmzone.h> |
22 | ||
1da177e4 LT |
23 | static inline int cpu_to_node(int cpu) |
24 | { | |
45fb6cea | 25 | return numa_cpu_lookup_table[cpu]; |
1da177e4 LT |
26 | } |
27 | ||
28 | #define parent_node(node) (node) | |
29 | ||
c81b812a AB |
30 | #define cpumask_of_node(node) ((node) == -1 ? \ |
31 | cpu_all_mask : \ | |
32 | &numa_cpumask_lookup_table[node]) | |
86c6f274 | 33 | |
953039c8 JK |
34 | int of_node_to_nid(struct device_node *device); |
35 | ||
357518fa | 36 | struct pci_bus; |
11faa658 | 37 | #ifdef CONFIG_PCI |
357518fa | 38 | extern int pcibus_to_node(struct pci_bus *bus); |
11faa658 AB |
39 | #else |
40 | static inline int pcibus_to_node(struct pci_bus *bus) | |
41 | { | |
42 | return -1; | |
43 | } | |
44 | #endif | |
357518fa | 45 | |
86c6f274 RR |
46 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
47 | cpu_all_mask : \ | |
48 | cpumask_of_node(pcibus_to_node(bus))) | |
49 | ||
1da177e4 | 50 | /* sched_domains SD_NODE_INIT for PPC64 machines */ |
a13672fb AB |
51 | #define SD_NODE_INIT (struct sched_domain) { \ |
52 | .min_interval = 8, \ | |
53 | .max_interval = 32, \ | |
54 | .busy_factor = 32, \ | |
55 | .imbalance_pct = 125, \ | |
56 | .cache_nice_tries = 1, \ | |
57 | .busy_idx = 3, \ | |
58 | .idle_idx = 1, \ | |
59 | .newidle_idx = 0, \ | |
60 | .wake_idx = 0, \ | |
61 | .forkexec_idx = 0, \ | |
62 | \ | |
63 | .flags = 1*SD_LOAD_BALANCE \ | |
64 | | 1*SD_BALANCE_NEWIDLE \ | |
65 | | 1*SD_BALANCE_EXEC \ | |
66 | | 1*SD_BALANCE_FORK \ | |
67 | | 0*SD_BALANCE_WAKE \ | |
68 | | 0*SD_WAKE_AFFINE \ | |
69 | | 0*SD_PREFER_LOCAL \ | |
70 | | 0*SD_SHARE_CPUPOWER \ | |
71 | | 0*SD_POWERSAVINGS_BALANCE \ | |
72 | | 0*SD_SHARE_PKG_RESOURCES \ | |
73 | | 1*SD_SERIALIZE \ | |
74 | | 0*SD_PREFER_SIBLING \ | |
75 | , \ | |
76 | .last_balance = jiffies, \ | |
77 | .balance_interval = 1, \ | |
1da177e4 LT |
78 | } |
79 | ||
4b703a23 AB |
80 | extern void __init dump_numa_cpu_topology(void); |
81 | ||
953039c8 JK |
82 | extern int sysfs_add_device_to_node(struct sys_device *dev, int nid); |
83 | extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid); | |
84 | ||
561fb765 | 85 | #else |
1da177e4 | 86 | |
953039c8 JK |
87 | static inline int of_node_to_nid(struct device_node *device) |
88 | { | |
89 | return 0; | |
90 | } | |
91 | ||
4b703a23 AB |
92 | static inline void dump_numa_cpu_topology(void) {} |
93 | ||
953039c8 JK |
94 | static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid) |
95 | { | |
96 | return 0; | |
97 | } | |
98 | ||
99 | static inline void sysfs_remove_device_from_node(struct sys_device *dev, | |
100 | int nid) | |
101 | { | |
102 | } | |
103 | ||
aa6b5446 | 104 | #endif /* CONFIG_NUMA */ |
953039c8 | 105 | |
1da177e4 LT |
106 | #include <asm-generic/topology.h> |
107 | ||
5c45bf27 SS |
108 | #ifdef CONFIG_SMP |
109 | #include <asm/cputable.h> | |
056f4faa SR |
110 | #define smt_capable() (cpu_has_feature(CPU_FTR_SMT)) |
111 | ||
112 | #ifdef CONFIG_PPC64 | |
113 | #include <asm/smp.h> | |
114 | ||
cc1ba8ea AB |
115 | #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
116 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) | |
e9efed3b | 117 | #define topology_core_id(cpu) (cpu_to_core_id(cpu)) |
056f4faa | 118 | #endif |
5c45bf27 SS |
119 | #endif |
120 | ||
88ced031 | 121 | #endif /* __KERNEL__ */ |
dd56fdf2 | 122 | #endif /* _ASM_POWERPC_TOPOLOGY_H */ |