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[PATCH] x86: Don't use MWAIT on AMD Family 10

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It doesn't put the CPU into deeper sleep states, so it's better to use the standard
idle loop to save power. But allow to reenable it anyways for benchmarking.

I also removed the obsolete idle=halt on i386

Cc: andreas.herrmann@amd.com

Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen
2007-05-02 19:27:12 +02:00
committed by Andi Kleen
parent c169859d6d
commit f039b75471
7 changed files with 39 additions and 16 deletions
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include/asm-i386/processor.h
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@@ -779,4 +779,6 @@ extern int sysenter_setup(void);
extern void cpu_set_gdt(int);
extern void cpu_init(void);
extern int force_mwait;
#endif /* __ASM_I386_PROCESSOR_H */