diff options
| author | Andreas Mohr <andi@rhlx01.fht-esslingen.de> | 2006-06-26 07:59:29 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 13:48:21 -0400 |
| commit | 899ced0dd9457b9c349663ca4cb4ec09167728a6 (patch) | |
| tree | 9b23a1d8fa804b28dba69df494bc8dc16d772738 | |
| parent | cab093b9d4b40c71c6261a11ba8f1ca027e09008 (diff) | |
[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: Andreas Mohr <andi@lisas.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/asm-x86_64/apic.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index 9d43ac8519bf..9c96a0a8d1bd 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h | |||
| @@ -49,7 +49,8 @@ static __inline unsigned int apic_read(unsigned long reg) | |||
| 49 | 49 | ||
| 50 | static __inline__ void apic_wait_icr_idle(void) | 50 | static __inline__ void apic_wait_icr_idle(void) |
| 51 | { | 51 | { |
| 52 | while ( apic_read( APIC_ICR ) & APIC_ICR_BUSY ); | 52 | while (apic_read( APIC_ICR ) & APIC_ICR_BUSY) |
| 53 | cpu_relax(); | ||
| 53 | } | 54 | } |
| 54 | 55 | ||
| 55 | static inline void ack_APIC_irq(void) | 56 | static inline void ack_APIC_irq(void) |