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Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r--arch/x86/include/asm/apic.h38
1 files changed, 27 insertions, 11 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 2b7d573be54..4a0b7c7e2cc 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -363,7 +363,12 @@ struct apic {
*/
int (*x86_32_early_logical_apicid)(int cpu);
- /* determine CPU -> NUMA node mapping */
+ /*
+ * Optional method called from setup_local_APIC() after logical
+ * apicid is guaranteed to be known to initialize apicid -> node
+ * mapping if NUMA initialization hasn't done so already. Don't
+ * add new users.
+ */
int (*x86_32_numa_cpu_node)(int cpu);
#endif
};
@@ -376,6 +381,26 @@ struct apic {
extern struct apic *apic;
/*
+ * APIC drivers are probed based on how they are listed in the .apicdrivers
+ * section. So the order is important and enforced by the ordering
+ * of different apic driver files in the Makefile.
+ *
+ * For the files having two apic drivers, we use apic_drivers()
+ * to enforce the order with in them.
+ */
+#define apic_driver(sym) \
+ static struct apic *__apicdrivers_##sym __used \
+ __aligned(sizeof(struct apic *)) \
+ __section(.apicdrivers) = { &sym }
+
+#define apic_drivers(sym1, sym2) \
+ static struct apic *__apicdrivers_##sym1##sym2[2] __used \
+ __aligned(sizeof(struct apic *)) \
+ __section(.apicdrivers) = { &sym1, &sym2 }
+
+extern struct apic *__apicdrivers[], *__apicdrivers_end[];
+
+/*
* APIC functionality to boot other CPUs - only used on SMP:
*/
#ifdef CONFIG_SMP
@@ -453,15 +478,10 @@ static inline unsigned default_get_apic_id(unsigned long x)
#define DEFAULT_TRAMPOLINE_PHYS_HIGH 0x469
#ifdef CONFIG_X86_64
-extern struct apic apic_flat;
-extern struct apic apic_physflat;
-extern struct apic apic_x2apic_cluster;
-extern struct apic apic_x2apic_phys;
extern int default_acpi_madt_oem_check(char *, char *);
extern void apic_send_IPI_self(int vector);
-extern struct apic apic_x2apic_uv_x;
DECLARE_PER_CPU(int, x2apic_extra_bits);
extern int default_cpu_present_to_apicid(int mps_cpu);
@@ -475,7 +495,7 @@ static inline void default_wait_for_init_deassert(atomic_t *deassert)
return;
}
-extern void generic_bigsmp_probe(void);
+extern struct apic *generic_bigsmp_probe(void);
#ifdef CONFIG_X86_LOCAL_APIC
@@ -511,8 +531,6 @@ extern struct apic apic_noop;
#ifdef CONFIG_X86_32
-extern struct apic apic_default;
-
static inline int noop_x86_32_early_logical_apicid(int cpu)
{
return BAD_APICID;
@@ -537,8 +555,6 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
return cpuid_apic >> index_msb;
}
-extern int default_x86_32_numa_cpu_node(int cpu);
-
#endif
static inline unsigned int