From: Andi Kleen <andi@firstfloor.org>
To: x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] [2/3] Use the fancy DECLARE_EAX_EDX macros for rdtscp too
Date: Tue, 7 Oct 2008 13:43:13 +0200 (CEST) [thread overview]
Message-ID: <20081007114313.CB5F23E6A0D@basil.firstfloor.org> (raw)
In-Reply-To: <20081007143.793379346@firstfloor.org>
rdtscp was the only function to not use them.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Index: linux-2.6.27-rc4-misc/include/asm-x86/msr.h
===================================================================
--- linux-2.6.27-rc4-misc.orig/include/asm-x86/msr.h
+++ linux-2.6.27-rc4-misc/include/asm-x86/msr.h
@@ -34,10 +34,10 @@
static inline unsigned long long native_read_tscp(unsigned int *aux)
{
- unsigned long low, high;
- asm volatile(".byte 0x0f,0x01,0xf9"
- : "=a" (low), "=d" (high), "=c" (*aux));
- return low | ((u64)high << 32);
+ DECLARE_ARGS(val, low, high);
+ asm volatile(".byte 0x0f,0x01,0xf9" :
+ EAX_EDX_RET(val, low, high), "=c" (*aux));
+ return EAX_EDX_VAL(val, low, high);
}
static inline unsigned long long native_read_msr(unsigned int msr)
next prev parent reply other threads:[~2008-10-07 11:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-07 11:43 [PATCH] [1/3] Provide rdtscll() asm/msr.h for user space Andi Kleen
2008-10-07 11:43 ` Andi Kleen [this message]
2008-10-07 11:43 ` [PATCH] [3/3] Remove unused EAX_EDX_ARGS Andi Kleen
2008-10-07 21:32 ` [PATCH] [1/3] Provide rdtscll() asm/msr.h for user space H. Peter Anvin
2008-10-07 23:11 ` Andi Kleen
2008-10-07 23:25 ` H. Peter Anvin
2008-10-07 23:37 ` Andi Kleen
2008-10-07 23:45 ` H. Peter Anvin
2008-10-07 23:42 ` [PATCH] [1/3] Provide rdtscll() asm/msr.h for user space II Andi Kleen
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