From: Anders Peter Fugmann <afu@fugmann.dhs.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] 3DNOW optimization fix
Date: Sun, 26 Aug 2001 01:40:23 +0200 [thread overview]
Message-ID: <3B883767.2040004@fugmann.dhs.org> (raw)
As noted by Andreas Franck, the assembler instruction for
write prefetch is mistakenly a read prefetch. Below is for
linux-2.4.8-ac11 that corrects the error.
Regards
Anders Fugmann
--
--- linux/include/asm-i386/processor.h~ Sun Aug 26 01:18:12 2001
+++ linux/include/asm-i386/processor.h Sun Aug 26 01:22:36 2001
@@ -501,7 +502,7 @@
extern inline void prefetchw(const void *x)
{
- __asm__ __volatile__ ("prefetch (%0)" : : "r"(x));
+ __asm__ __volatile__ ("prefetchw (%0)" : : "r"(x));
}
#define spin_lock_prefetch(x) prefetchw(x)
reply other threads:[~2001-08-25 23:40 UTC|newest]
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