[linuxsh-dev] Fix timing loop

[Jesper S. <js...@re...>]

This is the accuracy fix I mentioned the other day.

Jesper

Index: ChangeLog
===================================================================
RCS file: /cvsroot/linuxsh/kernel/ChangeLog,v
retrieving revision 1.105
diff -u -5 -r1.105 ChangeLog
--- ChangeLog	2000/10/13 02:11:57	1.105
+++ ChangeLog	2000/10/26 09:01:55
@@ -1,5 +1,11 @@
+2000-10-26  Jesper Skov  <js...@re...>
+
+	David Woodhouse <dw...@re...>:
+	* arch/sh/kernel/time.c (get_cpu_mhz): Align loop to ensure
+	accuracy.
+
 2000-01-13  Greg Banks  <gb...@po...>
 
 	* arch/sh/config.in: HD64465 PCMCIA support.  These changes
 	needed for the PCMCIA host bridge driver currently submitted
 	to the PCMCIA maintainer.
Index: arch/sh/kernel/time.c
===================================================================
RCS file: /cvsroot/linuxsh/kernel/arch/sh/kernel/time.c,v
retrieving revision 1.16
diff -u -5 -r1.16 time.c
--- arch/sh/kernel/time.c	2000/09/30 03:43:30	1.16
+++ arch/sh/kernel/time.c	2000/10/26 09:01:57
@@ -335,10 +335,11 @@
 
 	sti();
 	do {} while (ctrl_inb(R64CNT) != 0);
 	ctrl_outb(RCR1_CIE, RCR1); /* Enable carry interrupt */
 	asm volatile(
+		".align2\n\t"
 		"1:\t"
 		"tst	%1,%1\n\t"
 		"bt/s	1b\n\t"
 		" add	#1,%0"
 		: "=r"(count), "=z" (__dummy)