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- #ifndef _ASM_X86_64_TOPOLOGY_H
- #define _ASM_X86_64_TOPOLOGY_H
- #ifdef CONFIG_NUMA
- #include <asm/mpspec.h>
- #include <asm/bitops.h>
- extern cpumask_t cpu_online_map;
- extern unsigned char cpu_to_node[];
- extern cpumask_t node_to_cpumask[];
- #ifdef CONFIG_ACPI_NUMA
- extern int __node_distance(int, int);
- #define node_distance(a,b) __node_distance(a,b)
- /* #else fallback version */
- #endif
- #define cpu_to_node(cpu) (cpu_to_node[cpu])
- #define parent_node(node) (node)
- #define node_to_first_cpu(node) (first_cpu(node_to_cpumask[node]))
- #define node_to_cpumask(node) (node_to_cpumask[node])
- #define pcibus_to_node(bus) ((long)(bus->sysdata))
- #define pcibus_to_cpumask(bus) node_to_cpumask(pcibus_to_node(bus));
- #define numa_node_id() read_pda(nodenumber)
- /* sched_domains SD_NODE_INIT for x86_64 machines */
- #define SD_NODE_INIT (struct sched_domain) { \
- .span = CPU_MASK_NONE, \
- .parent = NULL, \
- .child = NULL, \
- .groups = NULL, \
- .min_interval = 8, \
- .max_interval = 32, \
- .busy_factor = 32, \
- .imbalance_pct = 125, \
- .cache_nice_tries = 2, \
- .busy_idx = 3, \
- .idle_idx = 2, \
- .newidle_idx = 0, \
- .wake_idx = 1, \
- .forkexec_idx = 1, \
- .per_cpu_gain = 100, \
- .flags = SD_LOAD_BALANCE \
- | SD_BALANCE_FORK \
- | SD_BALANCE_EXEC \
- | SD_WAKE_BALANCE, \
- .last_balance = jiffies, \
- .balance_interval = 1, \
- .nr_balance_failed = 0, \
- }
- #endif
- #ifdef CONFIG_SMP
- #define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id)
- #define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id)
- #define topology_core_siblings(cpu) (cpu_core_map[cpu])
- #define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
- #define mc_capable() (boot_cpu_data.x86_max_cores > 1)
- #define smt_capable() (smp_num_siblings > 1)
- #endif
- #include <asm-generic/topology.h>
- extern cpumask_t cpu_coregroup_map(int cpu);
- #endif
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