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| author |   Andreas Mohr <andi@rhlx01.fht-esslingen.de> | 2006-06-26 13:59:29 +0200 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 10:48:21 -0700 |
| commit | 899ced0dd9457b9c349663ca4cb4ec09167728a6 (patch) | |
| tree | 9b23a1d8fa804b28dba69df494bc8dc16d772738 /include/asm-x86_64 | |
| parent | [PATCH] x86_64: adjust kstack_depth_to_print default (diff) | |
| download | linux-dev-899ced0dd9457b9c349663ca4cb4ec09167728a6.tar.xz linux-dev-899ced0dd9457b9c349663ca4cb4ec09167728a6.zip | |
[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>
Diffstat (limited to 'include/asm-x86_64')
| -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) 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) |