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authorH. Peter Anvin <hpa@zytor.com>2007-10-17 18:04:37 +0200
committerThomas Gleixner <tglx@inhelltoy.tec.linutronix.de>2007-10-17 20:16:12 +0200
commit6619a8fb594486363783cc4a8372e4d4ee4b913e (patch)
tree83130702b16dae3ccae5be54acd18993474ff757 /include/asm-x86/system_64.h
parent9689ba8ad0dc27c0a2ce40eb4c0f8fb66551119c (diff)
x86: Create clflush() inline, remove hardcoded wbinvd
Create an inline function for clflush(), with the proper arguments, and use it instead of hard-coding the instruction. This also removes one instance of hard-coded wbinvd, based on a patch by Bauder de Oliveira Costa. [ tglx: arch/x86 adaptation ] Cc: Andi Kleen <andi@firstfloor.org> Cc: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/system_64.h')
-rw-r--r--include/asm-x86/system_64.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h
index fb4bcf99e665..ec4c29bcfcb0 100644
--- a/include/asm-x86/system_64.h
+++ b/include/asm-x86/system_64.h
@@ -137,6 +137,11 @@ static inline void write_cr8(unsigned long val)
#endif /* __KERNEL__ */
+static inline void clflush(volatile void *__p)
+{
+ asm volatile("clflush %0" : "+m" (*(char __force *)__p));
+}
+
#define nop() __asm__ __volatile__ ("nop")
#ifdef CONFIG_SMP