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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _ASM_X86_64_TOPOLOGY_H
2#define _ASM_X86_64_TOPOLOGY_H
3
Linus Torvalds1da177e2005-04-16 15:20:36 -07004
Matt Tolentino2b976902005-06-23 00:08:06 -07005#ifdef CONFIG_NUMA
Linus Torvalds1da177e2005-04-16 15:20:36 -07006
7#include <asm/mpspec.h>
8#include <asm/bitops.h>
9
Linus Torvalds1da177e2005-04-16 15:20:36 -070010extern cpumask_t cpu_online_map;
11
12extern unsigned char cpu_to_node[];
13extern cpumask_t node_to_cpumask[];
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
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)
Ravikiran G Thirumalaic6604392005-12-22 14:21:34 -080023#define node_to_first_cpu(node) (first_cpu(node_to_cpumask[node]))
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#define node_to_cpumask(node) (node_to_cpumask[node])
Muli Ben-Yehuda08f1c192007-07-22 00:23:39 +030025#define pcibus_to_node(bus) ((struct pci_sysdata *)((bus)->sysdata))->node
Christoph Lameter8c5a0902005-06-23 00:08:18 -070026#define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus));
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Andi Kleen69d81fc2005-11-05 17:25:53 +010028#define numa_node_id() read_pda(nodenumber)
29
Linus Torvalds1da177e2005-04-16 15:20:36 -070030/* 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, \
Siddha, Suresh B1a848872006-10-03 01:14:08 -070034 .child = NULL, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 .groups = NULL, \
36 .min_interval = 8, \
37 .max_interval = 32, \
38 .busy_factor = 32, \
39 .imbalance_pct = 125, \
Nick Piggin78979862005-06-25 14:57:13 -070040 .cache_nice_tries = 2, \
41 .busy_idx = 3, \
42 .idle_idx = 2, \
Nick Piggin687f1662005-06-25 14:57:21 -070043 .newidle_idx = 0, \
Nick Piggin78979862005-06-25 14:57:13 -070044 .wake_idx = 1, \
Nick Piggin147cbb42005-06-25 14:57:19 -070045 .forkexec_idx = 1, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 .flags = SD_LOAD_BALANCE \
Nick Piggin147cbb42005-06-25 14:57:19 -070047 | SD_BALANCE_FORK \
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 | SD_BALANCE_EXEC \
Christoph Lameter08c183f2006-12-10 02:20:29 -080049 | SD_SERIALIZE \
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 | SD_WAKE_BALANCE, \
51 .last_balance = jiffies, \
52 .balance_interval = 1, \
53 .nr_balance_failed = 0, \
54}
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56#endif
57
Zhang, Yanmin69dcc992006-02-03 03:04:36 -080058#ifdef CONFIG_SMP
Rohit Sethf3fa8eb2006-06-26 13:58:17 +020059#define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id)
60#define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id)
Zhang, Yanmin69dcc992006-02-03 03:04:36 -080061#define topology_core_siblings(cpu) (cpu_core_map[cpu])
62#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -070063#define mc_capable() (boot_cpu_data.x86_max_cores > 1)
64#define smt_capable() (smp_num_siblings > 1)
Zhang, Yanmin69dcc992006-02-03 03:04:36 -080065#endif
66
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#include <asm-generic/topology.h>
68
Siddha, Suresh B1e9f28f2006-03-27 01:15:22 -080069extern cpumask_t cpu_coregroup_map(int cpu);
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071#endif