diff options
Diffstat (limited to 'arch/x86/include/asm/apic.h')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index e8f030440bc7..3a3202074c63 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -211,4 +211,20 @@ static inline void disable_local_APIC(void) { } #endif /* !CONFIG_X86_LOCAL_APIC */ +#ifdef CONFIG_X86_64 +#define SET_APIC_ID(x) (apic->set_apic_id(x)) +#else + +static inline unsigned default_get_apic_id(unsigned long x) +{ + unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR)); + + if (APIC_XAPIC(ver)) + return (x >> 24) & 0xFF; + else + return (x >> 24) & 0x0F; +} + +#endif + #endif /* _ASM_X86_APIC_H */ |