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 | ||
56608209 AB |
21 | /* |
22 | * Before going off node we want the VM to try and reclaim from the local | |
23 | * node. It does this if the remote distance is larger than RECLAIM_DISTANCE. | |
24 | * With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of | |
25 | * 20, we never reclaim and go off node straight away. | |
26 | * | |
27 | * To fix this we choose a smaller value of RECLAIM_DISTANCE. | |
28 | */ | |
29 | #define RECLAIM_DISTANCE 10 | |
30 | ||
dd56fdf2 | 31 | #include <asm/mmzone.h> |
32 | ||
1da177e4 LT |
33 | static inline int cpu_to_node(int cpu) |
34 | { | |
45fb6cea | 35 | return numa_cpu_lookup_table[cpu]; |
1da177e4 LT |
36 | } |
37 | ||
38 | #define parent_node(node) (node) | |
39 | ||
c81b812a AB |
40 | #define cpumask_of_node(node) ((node) == -1 ? \ |
41 | cpu_all_mask : \ | |
25863de0 | 42 | node_to_cpumask_map[node]) |
86c6f274 | 43 | |
357518fa | 44 | struct pci_bus; |
11faa658 | 45 | #ifdef CONFIG_PCI |
357518fa | 46 | extern int pcibus_to_node(struct pci_bus *bus); |
11faa658 AB |
47 | #else |
48 | static inline int pcibus_to_node(struct pci_bus *bus) | |
49 | { | |
50 | return -1; | |
51 | } | |
52 | #endif | |
357518fa | 53 | |
86c6f274 RR |
54 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
55 | cpu_all_mask : \ | |
56 | cpumask_of_node(pcibus_to_node(bus))) | |
57 | ||
1da177e4 | 58 | /* sched_domains SD_NODE_INIT for PPC64 machines */ |
a13672fb AB |
59 | #define SD_NODE_INIT (struct sched_domain) { \ |
60 | .min_interval = 8, \ | |
61 | .max_interval = 32, \ | |
62 | .busy_factor = 32, \ | |
63 | .imbalance_pct = 125, \ | |
64 | .cache_nice_tries = 1, \ | |
65 | .busy_idx = 3, \ | |
66 | .idle_idx = 1, \ | |
67 | .newidle_idx = 0, \ | |
68 | .wake_idx = 0, \ | |
69 | .forkexec_idx = 0, \ | |
70 | \ | |
71 | .flags = 1*SD_LOAD_BALANCE \ | |
72 | | 1*SD_BALANCE_NEWIDLE \ | |
73 | | 1*SD_BALANCE_EXEC \ | |
74 | | 1*SD_BALANCE_FORK \ | |
75 | | 0*SD_BALANCE_WAKE \ | |
76 | | 0*SD_WAKE_AFFINE \ | |
77 | | 0*SD_PREFER_LOCAL \ | |
78 | | 0*SD_SHARE_CPUPOWER \ | |
79 | | 0*SD_POWERSAVINGS_BALANCE \ | |
80 | | 0*SD_SHARE_PKG_RESOURCES \ | |
81 | | 1*SD_SERIALIZE \ | |
82 | | 0*SD_PREFER_SIBLING \ | |
83 | , \ | |
84 | .last_balance = jiffies, \ | |
85 | .balance_interval = 1, \ | |
1da177e4 LT |
86 | } |
87 | ||
41eab6f8 AB |
88 | extern int __node_distance(int, int); |
89 | #define node_distance(a, b) __node_distance(a, b) | |
90 | ||
4b703a23 AB |
91 | extern void __init dump_numa_cpu_topology(void); |
92 | ||
953039c8 JK |
93 | extern int sysfs_add_device_to_node(struct sys_device *dev, int nid); |
94 | extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid); | |
95 | ||
39bf990e | 96 | #ifdef CONFIG_PPC_SPLPAR |
3b7a27db JL |
97 | extern int start_topology_update(void); |
98 | extern int stop_topology_update(void); | |
561fb765 | 99 | #else |
39bf990e JL |
100 | static inline int start_topology_update(void) |
101 | { | |
102 | return 0; | |
103 | } | |
104 | static inline int stop_topology_update(void) | |
105 | { | |
106 | return 0; | |
107 | } | |
108 | #endif /* CONFIG_PPC_SPLPAR */ | |
109 | #else | |
1da177e4 | 110 | |
4b703a23 AB |
111 | static inline void dump_numa_cpu_topology(void) {} |
112 | ||
953039c8 JK |
113 | static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid) |
114 | { | |
115 | return 0; | |
116 | } | |
117 | ||
118 | static inline void sysfs_remove_device_from_node(struct sys_device *dev, | |
119 | int nid) | |
120 | { | |
121 | } | |
aa6b5446 | 122 | #endif /* CONFIG_NUMA */ |
953039c8 | 123 | |
1da177e4 LT |
124 | #include <asm-generic/topology.h> |
125 | ||
5c45bf27 SS |
126 | #ifdef CONFIG_SMP |
127 | #include <asm/cputable.h> | |
056f4faa SR |
128 | #define smt_capable() (cpu_has_feature(CPU_FTR_SMT)) |
129 | ||
130 | #ifdef CONFIG_PPC64 | |
131 | #include <asm/smp.h> | |
132 | ||
cc1ba8ea AB |
133 | #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) |
134 | #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) | |
e9efed3b | 135 | #define topology_core_id(cpu) (cpu_to_core_id(cpu)) |
056f4faa | 136 | #endif |
5c45bf27 SS |
137 | #endif |
138 | ||
88ced031 | 139 | #endif /* __KERNEL__ */ |
dd56fdf2 | 140 | #endif /* _ASM_POWERPC_TOPOLOGY_H */ |