AMD Turion64 X2 works with PowerNow! thank you Bruno

[Abdullah Ibn Hamad Al-Marri]

Hello AMD users ;)

In regard to my post about AMD hangs with PowerNow! in my Acer Laptop
which has http://groups.google.com/group/mailing.freebsd.mobile/browse_frm/thread/49b02729f7d8b27e/d36307d211e914c5#d36307d211e914c5

I have been working with Mr. Bruno for few days, and finally PowerNow!
works with no hanging issues at all, I used the new powernow.c
provided by Bruno attached.

So I wish this could be backported to RELENG_6 asap, and yes I tested
it in FreeBSD 6.2-STABLE only, not with current.

http://lists.freebsd.org/pipermail/cvs-all/2007-January/205192.html

bruno       2007-01-23 19:20:31 UTC

  FreeBSD src repository

  Modified files:
    sys/i386/cpufreq     powernow.c
  Log:
  o introduce a flags 'errata' for HW bugs onto the softc.
  o remove errata_a0 and introduce the corresponding flags into 'errata'.
  o introduce a new errata for K8, namely some platform might set the
    PENDING_BIT but aren't able to unset it, also don't loop forever
    waiting PENDING_BIT being cleared.
  o try to introduce a workaround for the PENDING_BIT stuck problem,
  o support now half multipliers for K8.

  Tested by:      Abdullah Al-Marrie

  Approved by:    njl

  Revision  Changes    Path
  1.4       +97 -42    src/sys/i386/cpufreq/powernow.c


To make sure it works with RELENG_6 use this

Index: powernow.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/cpufreq/powernow.c,v
retrieving revision 1.3
retrieving revision 1.2
diff -u -r1.3 -r1.2
--- powernow.c  16 May 2006 14:32:16 -0000      1.3
+++ powernow.c  31 Mar 2005 06:11:04 -0000      1.2
@@ -44,6 +44,7 @@
 #include <machine/md_var.h>
 #include <machine/specialreg.h>
 #include <machine/cputypes.h>
+#include <machine/clock.h>
 #include <machine/vmparam.h>
 #include <sys/rman.h>

-- 
Regards,

-Abdullah Ibn Hamad Al-Marri
Arab Portal
http://www.WeArab.Net/
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