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authorLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 08:25:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 08:25:51 -0700
commit9e9abecfc0ff3a9ad2ead954b37bbfcb863c775e (patch)
tree0c3ffda953b82750638a06507591ad587b565ff2 /include/asm-x86/topology.h
parentd7bb545d86825e635cab33a1dd81ca0ad7b92887 (diff)
parent77ad386e596c6b0930cc2e09e3cce485e3ee7f72 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (613 commits) x86: standalone trampoline code x86: move suspend wakeup code to C x86: coding style fixes to arch/x86/kernel/acpi/sleep.c x86: setup_trampoline() - fix section mismatch warning x86: section mismatch fixes, #1 x86: fix paranoia about using BIOS quickboot mechanism. x86: print out buggy mptable x86: use cpu_online() x86: use cpumask_of_cpu() x86: remove unnecessary tmp local variable x86: remove unnecessary memset() x86: use ioapic_read_entry() and ioapic_write_entry() x86: avoid redundant loop in io_apic_level_ack_pending() x86: remove superfluous initialisation in boot code. x86: merge mpparse_{32,64}.c x86: unify mp_register_gsi x86: unify mp_config_acpi_legacy_irqs x86: unify mp_register_ioapic x86: unify uniq_io_apic_id x86: unify smp_scan_config ...
Diffstat (limited to 'include/asm-x86/topology.h')
-rw-r--r--include/asm-x86/topology.h23
1 files changed, 15 insertions, 8 deletions
diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 8af05a93f09..81a29eb08ac 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;
@@ -65,21 +72,21 @@ 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);
}
#endif /* CONFIG_X86_64 */