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jdl@freescale.comdd56fdf2005-09-07 15:59:48 -05001#ifndef _ASM_POWERPC_TOPOLOGY_H
2#define _ASM_POWERPC_TOPOLOGY_H
Arnd Bergmann88ced032005-12-16 22:43:46 +01003#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -07004
Linus Torvalds1da177e2005-04-16 15:20:36 -07005
Jeremy Kerr953039c2006-05-01 12:16:12 -07006struct sys_device;
7struct device_node;
8
Linus Torvalds1da177e2005-04-16 15:20:36 -07009#ifdef CONFIG_NUMA
10
jdl@freescale.comdd56fdf2005-09-07 15:59:48 -050011#include <asm/mmzone.h>
12
Linus Torvalds1da177e2005-04-16 15:20:36 -070013static inline int cpu_to_node(int cpu)
14{
Anton Blanchard45fb6ce2005-11-11 14:22:35 +110015 return numa_cpu_lookup_table[cpu];
Linus Torvalds1da177e2005-04-16 15:20:36 -070016}
17
18#define parent_node(node) (node)
19
20static inline cpumask_t node_to_cpumask(int node)
21{
22 return numa_cpumask_lookup_table[node];
23}
24
25static inline int node_to_first_cpu(int node)
26{
27 cpumask_t tmp;
28 tmp = node_to_cpumask(node);
29 return first_cpu(tmp);
30}
31
Jeremy Kerr953039c2006-05-01 12:16:12 -070032int of_node_to_nid(struct device_node *device);
33
Anton Blanchard357518f2006-06-10 20:53:06 +100034struct pci_bus;
Arnd Bergmann11faa652006-11-27 19:19:00 +010035#ifdef CONFIG_PCI
Anton Blanchard357518f2006-06-10 20:53:06 +100036extern int pcibus_to_node(struct pci_bus *bus);
Arnd Bergmann11faa652006-11-27 19:19:00 +010037#else
38static inline int pcibus_to_node(struct pci_bus *bus)
39{
40 return -1;
41}
42#endif
Anton Blanchard357518f2006-06-10 20:53:06 +100043
44#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
45 CPU_MASK_ALL : \
46 node_to_cpumask(pcibus_to_node(bus)) \
47 )
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
Linus Torvalds1da177e2005-04-16 15:20:36 -070049/* sched_domains SD_NODE_INIT for PPC64 machines */
50#define SD_NODE_INIT (struct sched_domain) { \
51 .span = CPU_MASK_NONE, \
52 .parent = NULL, \
Siddha, Suresh B1a848872006-10-03 01:14:08 -070053 .child = NULL, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 .groups = NULL, \
55 .min_interval = 8, \
56 .max_interval = 32, \
57 .busy_factor = 32, \
58 .imbalance_pct = 125, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 .cache_nice_tries = 1, \
Nick Piggin5cfccd72005-11-16 23:37:53 +110060 .busy_idx = 3, \
Michael Ellermand2a33172005-11-17 20:34:35 +110061 .idle_idx = 1, \
Nick Piggin5cfccd72005-11-16 23:37:53 +110062 .newidle_idx = 2, \
63 .wake_idx = 1, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 .flags = SD_LOAD_BALANCE \
65 | SD_BALANCE_EXEC \
66 | SD_BALANCE_NEWIDLE \
67 | SD_WAKE_IDLE \
Christoph Lameter08c183f2006-12-10 02:20:29 -080068 | SD_SERIALIZE \
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 | SD_WAKE_BALANCE, \
70 .last_balance = jiffies, \
71 .balance_interval = 1, \
72 .nr_balance_failed = 0, \
73}
74
Anton Blanchard4b703a22005-12-13 06:56:47 +110075extern void __init dump_numa_cpu_topology(void);
76
Jeremy Kerr953039c2006-05-01 12:16:12 -070077extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
78extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);
79
Anton Blanchard561fb7652005-08-01 21:11:46 -070080#else
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
Jeremy Kerr953039c2006-05-01 12:16:12 -070082static inline int of_node_to_nid(struct device_node *device)
83{
84 return 0;
85}
86
Anton Blanchard4b703a22005-12-13 06:56:47 +110087static inline void dump_numa_cpu_topology(void) {}
88
Jeremy Kerr953039c2006-05-01 12:16:12 -070089static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
90{
91 return 0;
92}
93
94static inline void sysfs_remove_device_from_node(struct sys_device *dev,
95 int nid)
96{
97}
98
99
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100#include <asm-generic/topology.h>
101
Anton Blanchard561fb7652005-08-01 21:11:46 -0700102#endif /* CONFIG_NUMA */
103
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -0700104#ifdef CONFIG_SMP
105#include <asm/cputable.h>
Stephen Rothwell056f4fa2006-11-13 14:51:46 +1100106#define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
107
108#ifdef CONFIG_PPC64
109#include <asm/smp.h>
110
111#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
112#endif
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -0700113#endif
114
Arnd Bergmann88ced032005-12-16 22:43:46 +0100115#endif /* __KERNEL__ */
jdl@freescale.comdd56fdf2005-09-07 15:59:48 -0500116#endif /* _ASM_POWERPC_TOPOLOGY_H */