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-rw-r--r--include/asm-x86/topology_64.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/asm-x86/topology_64.h b/include/asm-x86/topology_64.h
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1#ifndef _ASM_X86_64_TOPOLOGY_H
2#define _ASM_X86_64_TOPOLOGY_H
3
4
5#ifdef CONFIG_NUMA
6
7#include <asm/mpspec.h>
8#include <asm/bitops.h>
9
10extern cpumask_t cpu_online_map;
11
12extern unsigned char cpu_to_node[];
13extern cpumask_t node_to_cpumask[];
14
15#ifdef CONFIG_ACPI_NUMA
16extern int __node_distance(int, int);
17#define node_distance(a,b) __node_distance(a,b)
18/* #else fallback version */
19#endif
20
21#define cpu_to_node(cpu) (cpu_to_node[cpu])
22#define parent_node(node) (node)
23#define node_to_first_cpu(node) (first_cpu(node_to_cpumask[node]))
24#define node_to_cpumask(node) (node_to_cpumask[node])
25#define pcibus_to_node(bus) ((struct pci_sysdata *)((bus)->sysdata))->node
26#define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus));
27
28#define numa_node_id() read_pda(nodenumber)
29
30/* sched_domains SD_NODE_INIT for x86_64 machines */
31#define SD_NODE_INIT (struct sched_domain) { \
32 .span = CPU_MASK_NONE, \
33 .parent = NULL, \
34 .child = NULL, \
35 .groups = NULL, \
36 .min_interval = 8, \
37 .max_interval = 32, \
38 .busy_factor = 32, \
39 .imbalance_pct = 125, \
40 .cache_nice_tries = 2, \
41 .busy_idx = 3, \
42 .idle_idx = 2, \
43 .newidle_idx = 0, \
44 .wake_idx = 1, \
45 .forkexec_idx = 1, \
46 .flags = SD_LOAD_BALANCE \
47 | SD_BALANCE_FORK \
48 | SD_BALANCE_EXEC \
49 | SD_SERIALIZE \
50 | SD_WAKE_BALANCE, \
51 .last_balance = jiffies, \
52 .balance_interval = 1, \
53 .nr_balance_failed = 0, \
54}
55
56#endif
57
58#ifdef CONFIG_SMP
59#define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id)
60#define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id)
61#define topology_core_siblings(cpu) (cpu_core_map[cpu])
62#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
63#define mc_capable() (boot_cpu_data.x86_max_cores > 1)
64#define smt_capable() (smp_num_siblings > 1)
65#endif
66
67#include <asm-generic/topology.h>
68
69extern cpumask_t cpu_coregroup_map(int cpu);
70
71#endif