1 #ifndef _ASM_X86_64_TOPOLOGY_H
2 #define _ASM_X86_64_TOPOLOGY_H
7 #include <asm/mpspec.h>
8 #include <asm/bitops.h>
10 extern cpumask_t cpu_online_map
;
12 extern unsigned char cpu_to_node
[];
13 extern cpumask_t node_to_cpumask
[];
15 #ifdef CONFIG_ACPI_NUMA
16 extern int __node_distance(int, int);
17 #define node_distance(a,b) __node_distance(a,b)
18 /* #else fallback version */
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));
28 #define numa_node_id() read_pda(nodenumber)
30 /* sched_domains SD_NODE_INIT for x86_64 machines */
31 #define SD_NODE_INIT (struct sched_domain) { \
32 .span = CPU_MASK_NONE, \
39 .imbalance_pct = 125, \
40 .cache_nice_tries = 2, \
46 .flags = SD_LOAD_BALANCE \
51 .last_balance = jiffies, \
52 .balance_interval = 1, \
53 .nr_balance_failed = 0, \
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) (per_cpu(cpu_core_map, cpu))
62 #define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
63 #define mc_capable() (boot_cpu_data.x86_max_cores > 1)
64 #define smt_capable() (smp_num_siblings > 1)
67 #include <asm-generic/topology.h>
69 extern cpumask_t
cpu_coregroup_map(int cpu
);