tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _ASM_POWERPC_TOPOLOGY_H
2#define _ASM_POWERPC_TOPOLOGY_H
3#ifdef __KERNEL__
4
5
6struct sys_device;
7struct device_node;
8
9#ifdef CONFIG_NUMA
10
11#include <asm/mmzone.h>
12
13static inline int cpu_to_node(int cpu)
14{
15 return numa_cpu_lookup_table[cpu];
16}
17
18#define parent_node(node) (node)
19
20#define cpumask_of_node(node) (&numa_cpumask_lookup_table[node])
21
22int of_node_to_nid(struct device_node *device);
23
24struct pci_bus;
25#ifdef CONFIG_PCI
26extern int pcibus_to_node(struct pci_bus *bus);
27#else
28static inline int pcibus_to_node(struct pci_bus *bus)
29{
30 return -1;
31}
32#endif
33
34#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
35 cpu_all_mask : \
36 cpumask_of_node(pcibus_to_node(bus)))
37
38/* sched_domains SD_NODE_INIT for PPC64 machines */
39#define SD_NODE_INIT (struct sched_domain) { \
40 .parent = NULL, \
41 .child = NULL, \
42 .groups = NULL, \
43 .min_interval = 8, \
44 .max_interval = 32, \
45 .busy_factor = 32, \
46 .imbalance_pct = 125, \
47 .cache_nice_tries = 1, \
48 .busy_idx = 3, \
49 .idle_idx = 1, \
50 .newidle_idx = 0, \
51 .wake_idx = 0, \
52 .flags = SD_LOAD_BALANCE \
53 | SD_BALANCE_EXEC \
54 | SD_BALANCE_FORK \
55 | SD_BALANCE_NEWIDLE \
56 | SD_SERIALIZE, \
57 .last_balance = jiffies, \
58 .balance_interval = 1, \
59 .nr_balance_failed = 0, \
60}
61
62extern void __init dump_numa_cpu_topology(void);
63
64extern int sysfs_add_device_to_node(struct sys_device *dev, int nid);
65extern void sysfs_remove_device_from_node(struct sys_device *dev, int nid);
66
67#else
68
69static inline int of_node_to_nid(struct device_node *device)
70{
71 return 0;
72}
73
74static inline void dump_numa_cpu_topology(void) {}
75
76static inline int sysfs_add_device_to_node(struct sys_device *dev, int nid)
77{
78 return 0;
79}
80
81static inline void sysfs_remove_device_from_node(struct sys_device *dev,
82 int nid)
83{
84}
85
86#endif /* CONFIG_NUMA */
87
88#include <asm-generic/topology.h>
89
90#ifdef CONFIG_SMP
91#include <asm/cputable.h>
92#define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
93
94#ifdef CONFIG_PPC64
95#include <asm/smp.h>
96
97#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
98#define topology_core_cpumask(cpu) (&per_cpu(cpu_core_map, cpu))
99#define topology_core_id(cpu) (cpu_to_core_id(cpu))
100#endif
101#endif
102
103#endif /* __KERNEL__ */
104#endif /* _ASM_POWERPC_TOPOLOGY_H */