x86/apic: Unify interrupt mode setup for SMP-capable system

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On a SMP-capable system, the kernel enables and sets up the APIC interrupt
delivery mode in native_smp_prepare_cpus(). The decision how to setup the
APIC is intermingled with the decision of setting up SMP or not.

Split the initialization of the APIC interrupt mode independent from other
decisions and have a separate apic_intr_mode_init() function for it.

The invocation time stays the same for now.

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: yinghai@kernel.org
Cc: bhe@redhat.com
Link: https://lkml.kernel.org/r/1505293975-26005-6-git-send-email-douly.fnst@cn.fujitsu.com

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Dou Liyang 2017-09-13 17:12:48 +08:00 • committed by Thomas Gleixner

parent 4b1244b45c

commit 3e730dad3b

2 changed files with 37 additions and 15 deletions

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38

arch/x86/kernel/apic/apic.c

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14

arch/x86/kernel/smpboot.c

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