From: David Mosberger <davidm@tiger.hpl.hp.com>
Date: Wed, 15 Oct 2003 03:13:31 +0000 (-0700)
Subject: ia64: Fix __delay() to do The Right Thing.  In practice, this may
X-Git-Tag: v2.6.0-test8~5^2~2^2~7
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=5a86523bd9190fc4441e000c7cff8483f5a2f526;p=history.git

ia64: Fix __delay() to do The Right Thing.  In practice, this may
	cause BogoMIPS to drop to half the clock-speed with current
	versions of GCC, but this just shows that GCC doesn't generate
	very good code for single-cycle loops.  Perhaps it will motivate
	someone to improve GCC in this area (though it's hardly of
	practical value, other than for producing large BogoMIPS values).
---

diff --git a/include/asm-ia64/delay.h b/include/asm-ia64/delay.h
index 74c542acc1e8..8cc00a25d17a 100644
--- a/include/asm-ia64/delay.h
+++ b/include/asm-ia64/delay.h
@@ -74,7 +74,7 @@ __delay (unsigned long loops)
 		return;
 
 	while (loops--)
-		ia64_nop(0);
+		barrier();
 }
 
 static __inline__ void