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
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 4e550c7..01f3fc8 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 */