/* Mappings between logical cpu number and node number */
#ifdef CONFIG_X86_32
-extern u8 cpu_to_node_map[];
+extern int cpu_to_node_map[];
#else
-DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
-extern u16 x86_cpu_to_node_map_init[];
+DECLARE_PER_CPU(int, x86_cpu_to_node_map);
+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()))
#endif
extern cpumask_t node_to_cpumask_map[];
-#define NUMA_NO_NODE ((u16)(~0))
+#define NUMA_NO_NODE (-1)
/* Returns the number of the node containing CPU 'cpu' */
#ifdef CONFIG_X86_32
#else /* CONFIG_X86_64 */
static inline int early_cpu_to_node(int cpu)
{
- u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+ int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
if (cpu_to_node_map)
return cpu_to_node_map[cpu];
static inline int cpu_to_node(int cpu)
{
- if(per_cpu_offset(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);
+ 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;