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authorDou Liyang <douly.fnst@cn.fujitsu.com>2017-09-13 17:12:49 +0800
committerThomas Gleixner <tglx@linutronix.de>2017-09-25 15:03:16 +0200
commit4f45ed9f848f0721967e2f79e5409b6538894a43 (patch)
treeee5ca336dceb57eea613f9e36abde6760fafcf85 /arch/x86/include/asm/apic.h
parentx86/apic: Unify interrupt mode setup for SMP-capable system (diff)
downloadwireguard-linux-4f45ed9f848f0721967e2f79e5409b6538894a43.tar.xz
wireguard-linux-4f45ed9f848f0721967e2f79e5409b6538894a43.zip
x86/apic: Mark the apic_intr_mode extern for sanity check cleanup
Calling native_smp_prepare_cpus() to prepare for SMP bootup, does some sanity checking, enables APIC mode and disables SMP feature. Now, APIC mode setup has been unified to apic_intr_mode_init(), some sanity checks are redundant and need to be cleanup. Mark the apic_intr_mode extern to refine the switch and remove the redundant sanity check. 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/1505293975-26005-7-git-send-email-douly.fnst@cn.fujitsu.com
Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r--arch/x86/include/asm/apic.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 4e550c742130..01f3fc8f8691 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -53,6 +53,15 @@ extern int local_apic_timer_c2_ok;
extern int disable_apic;
extern unsigned int lapic_timer_frequency;
+extern enum apic_intr_mode_id apic_intr_mode;
+enum apic_intr_mode_id {
+ APIC_PIC,
+ APIC_VIRTUAL_WIRE,
+ APIC_VIRTUAL_WIRE_NO_CONFIG,
+ APIC_SYMMETRIC_IO,
+ APIC_SYMMETRIC_IO_NO_ROUTING
+};
+
#ifdef CONFIG_SMP
extern void __inquire_remote_apic(int apicid);
#else /* CONFIG_SMP */