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-rw-r--r--include/asm-x86_64/processor.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 85549e656ee..a8321999448 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -398,7 +398,7 @@ static inline void prefetch(void *x)
#define ARCH_HAS_PREFETCHW 1
static inline void prefetchw(void *x)
{
- alternative_input(ASM_NOP5,
+ alternative_input("prefetcht0 (%1)",
"prefetchw (%1)",
X86_FEATURE_3DNOW,
"r" (x));
@@ -437,6 +437,11 @@ static inline void prefetchw(void *x)
outb((data), 0x23); \
} while (0)
+static inline void serialize_cpu(void)
+{
+ __asm__ __volatile__ ("cpuid" : : : "ax", "bx", "cx", "dx");
+}
+
static inline void __monitor(const void *eax, unsigned long ecx,
unsigned long edx)
{