x86, ioapic: Early enable ioapic for timer irq
authorJacob Pan <jacob.jun.pan@intel.com>
Wed, 23 Sep 2009 14:20:23 +0000 (07:20 -0700)
committerH. Peter Anvin <hpa@zytor.com>
Wed, 24 Feb 2010 07:13:19 +0000 (23:13 -0800)
commit05ddafb17ad1a73c8bc333cb328bad46513e85e7
tree77cbf299a3a4f0f458bbea410ce31d85ff946185
parent28a3c93d11212655ce0a9be977c405c703844164
x86, ioapic: Early enable ioapic for timer irq

Moorestown platform needs apic ready early for the system timer irq
which is delievered via ioapic.  Should not impact other platforms.

In the longer term, once ioapic setup is moved before late time init,
we will not need this patch to do early apic enabling.

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
LKML-Reference: <43F901BD926A4E43B106BF17856F07559FB80D07@orsmsx508.amr.corp.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
arch/x86/include/asm/io_apic.h
arch/x86/kernel/apic/io_apic.c