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)		((long)(bus->sysdata))
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
72