diff options
Diffstat (limited to 'include/asm-x86/topology.h')
| -rw-r--r-- | include/asm-x86/topology.h | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h index 8af05a93f09..22073268b48 100644 --- a/include/asm-x86/topology.h +++ b/include/asm-x86/topology.h @@ -32,13 +32,18 @@ /* Mappings between logical cpu number and node number */ #ifdef CONFIG_X86_32 extern int cpu_to_node_map[]; - #else +/* Returns the number of the current Node. */ +#define numa_node_id() (early_cpu_to_node(raw_smp_processor_id())) +#endif + DECLARE_PER_CPU(int, x86_cpu_to_node_map); + +#ifdef CONFIG_SMP extern int x86_cpu_to_node_map_init[]; extern void *x86_cpu_to_node_map_early_ptr; -/* Returns the number of the current Node. */ -#define numa_node_id() (early_cpu_to_node(raw_smp_processor_id())) +#else +#define x86_cpu_to_node_map_early_ptr NULL #endif extern cpumask_t node_to_cpumask_map[]; @@ -54,6 +59,8 @@ static inline int cpu_to_node(int cpu) } #else /* CONFIG_X86_64 */ + +#ifdef CONFIG_SMP static inline int early_cpu_to_node(int cpu) { int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr; @@ -65,22 +72,33 @@ static inline int early_cpu_to_node(int cpu) else return NUMA_NO_NODE; } +#else +#define early_cpu_to_node(cpu) cpu_to_node(cpu) +#endif static inline int cpu_to_node(int cpu) { #ifdef CONFIG_DEBUG_PER_CPU_MAPS if (x86_cpu_to_node_map_early_ptr) { printk("KERN_NOTICE cpu_to_node(%d): usage too early!\n", - (int)cpu); + (int)cpu); dump_stack(); return ((int *)x86_cpu_to_node_map_early_ptr)[cpu]; } #endif - if (per_cpu_offset(cpu)) - return per_cpu(x86_cpu_to_node_map, cpu); - else - return NUMA_NO_NODE; + return per_cpu(x86_cpu_to_node_map, cpu); } + +#ifdef CONFIG_NUMA + +/* Returns a pointer to the cpumask of CPUs on Node 'node'. */ +#define node_to_cpumask_ptr(v, node) \ + cpumask_t *v = &(node_to_cpumask_map[node]) + +#define node_to_cpumask_ptr_next(v, node) \ + v = &(node_to_cpumask_map[node]) +#endif + #endif /* CONFIG_X86_64 */ /* @@ -129,17 +147,13 @@ extern unsigned long node_remap_size[]; # define SD_CACHE_NICE_TRIES 2 # define SD_IDLE_IDX 2 -# define SD_NEWIDLE_IDX 0 +# define SD_NEWIDLE_IDX 2 # define SD_FORKEXEC_IDX 1 #endif /* sched_domains SD_NODE_INIT for NUMAQ 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, \ @@ -157,7 +171,6 @@ extern unsigned long node_remap_size[]; | SD_WAKE_BALANCE, \ .last_balance = jiffies, \ .balance_interval = 1, \ - .nr_balance_failed = 0, \ } #ifdef CONFIG_X86_64_ACPI_NUMA @@ -167,10 +180,10 @@ extern int __node_distance(int, int); #else /* CONFIG_NUMA */ -#include <asm-generic/topology.h> - #endif +#include <asm-generic/topology.h> + extern cpumask_t cpu_coregroup_map(int cpu); #ifdef ENABLE_TOPO_DEFINES |