diff options
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index a0c46f06121..80b243c7f0f 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -381,6 +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 |