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#ifndef _ASM_X86_64_TOPOLOGY_H #define _ASM_X86_64_TOPOLOGY_H #include <linux/config.h> #ifdef CONFIG_NUMA #include <asm/mpspec.h> #include <asm/bitops.h> /* Map the K8 CPU local memory controllers to a simple 1:1 CPU:NODE topology */ 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, \ .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) \ (phys_proc_id[cpu] == BAD_APICID ? -1 : phys_proc_id[cpu]) #define topology_core_id(cpu) \ (cpu_core_id[cpu] == BAD_APICID ? 0 : cpu_core_id[cpu]) #define topology_core_siblings(cpu) (cpu_core_map[cpu]) #define topology_thread_siblings(cpu) (cpu_sibling_map[cpu]) #endif #include <asm-generic/topology.h> #endif