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