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Commit 899ced0d authored by Andreas Mohr's avatar Andreas Mohr Committed by Linus Torvalds
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[PATCH] x86_64: Add cpu_relax to apic_wait_icr_idle 



This one is adding a cpu_relax() that already existed in the i386 version.

Signed-off-by: default avatarAndreas Mohr <andi@lisas.de>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent cab093b9

include/asm-x86_64/apic.h

+2 −1
Original line number Diff line number Diff line
@@ -49,7 +49,8 @@ static __inline unsigned int apic_read(unsigned long reg) 


static __inline__ void apic_wait_icr_idle(void)

{

	while ( apic_read( APIC_ICR ) & APIC_ICR_BUSY );

	while (apic_read( APIC_ICR ) & APIC_ICR_BUSY)

		cpu_relax();

}



static inline void ack_APIC_irq(void)