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authorAndi Kleen <ak@suse.de>2007-05-02 19:27:12 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 19:27:12 +0200
commitf039b754714a422959027cb18bb33760eb8153f0 (patch)
treec5f28502adf35f5ea7738a974cd7c4fc81e1dd21 /include
parentc169859d6dfc7471ef9f2dbd720936e17906a084 (diff)
[PATCH] x86: Don't use MWAIT on AMD Family 10
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>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/processor.h2
-rw-r--r--include/asm-x86_64/proto.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index 9d895cc2f31..882d3f8fbba 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -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 */
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h
index 3f8f285138d..98063bcb3b3 100644
--- a/include/asm-x86_64/proto.h
+++ b/include/asm-x86_64/proto.h
@@ -119,6 +119,8 @@ extern int gsi_irq_sharing(int gsi);
extern void smp_local_timer_interrupt(void);
+extern int force_mwait;
+
long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);
void i8254_timer_resume(void);