From: Martin Mares <mj@ucw.cz>
Date: Mon, 11 Sep 2006 19:05:16 +0000 (+0200)
Subject: Enable prefetching on some more CPU's.
X-Git-Tag: holmes-import~555^2~2
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=34517b26c8017d696aa4b336f8ad7d64ad163d08;p=libucw.git

Enable prefetching on some more CPU's.
---

diff --git a/lib/prefetch.h b/lib/prefetch.h
index 8c97906d..776fc6a6 100644
--- a/lib/prefetch.h
+++ b/lib/prefetch.h
@@ -1,7 +1,7 @@
 /*
  *	UCW Library -- Prefetch
  *
- *	(c) 1997--2005 Martin Mares <mj@ucw.cz>
+ *	(c) 1997--2006 Martin Mares <mj@ucw.cz>
  *
  *	This software may be freely distributed and used according to the terms
  *	of the GNU Lesser General Public License.
@@ -10,18 +10,12 @@
 #ifndef _UCW_PREFETCH_H
 #define _UCW_PREFETCH_H
 
-#if defined(__pentium4)
-
-#define HAVE_PREFETCH
-static inline void prefetch(void *addr)
-{
-  asm volatile ("prefetcht0 %0" : : "m" (*(byte*)addr));
-}
-
-#elif defined(__k6)
+#if defined(__k6)
   /* K6 doesn't have prefetches */
 
-#elif defined(__athlon) || defined(__i686)
+#elif defined(__athlon) || defined(__k8) || \
+      defined(__i686) || \\
+      defined(__pentium4) || defined(__prescott) || defined(__nocona)
 
 #define HAVE_PREFETCH
 static inline void prefetch(void *addr)