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x86, apic: Unify identical register_lapic_address() functions

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They are the same, move the common function to apic.c to allow
further cleanups.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Len Brown <lenb@kernel.org>
LKML-Reference: <4CFDF675.4060305@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Yinghai Lu
2010-12-07 00:55:17 -08:00
committed by Thomas Gleixner
parent 51ddafcbc7
commit c0104d38a7
4 changed files with 16 additions and 27 deletions
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12
arch/x86/kernel/apic/apic.c
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@@ -1702,6 +1702,18 @@ void __init init_apic_mappings(void)
}
}
void __init register_lapic_address(unsigned long address)
{
mp_lapic_addr = address;
set_fixmap_nocache(FIX_APIC_BASE, address);
if (boot_cpu_physical_apicid == -1U) {
boot_cpu_physical_apicid = read_apic_id();
apic_version[boot_cpu_physical_apicid] =
GET_APIC_VERSION(apic_read(APIC_LVR));
}
}
/*
* This initializes the IO-APIC and APIC hardware if this is
* a UP kernel.