From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from outbound1-haw-R.bigfish.com (outbound-haw.frontbridge.com [12.129.219.97]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (Client CN "*.bigfish.com", Issuer "*.bigfish.com" (not verified)) by ozlabs.org (Postfix) with ESMTP id 4241E688F8 for ; Wed, 21 Dec 2005 08:26:32 +1100 (EST) Received: from outbound1-haw.bigfish.com (localhost.localdomain [127.0.0.1]) by outbound1-haw-R.bigfish.com (Postfix) with ESMTP id C7D3768C556 for ; Tue, 20 Dec 2005 20:53:10 +0000 (UTC) Received: from mail2-fra-R.bigfish.com (unknown [192.168.51.1]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (No client certificate requested) by outbound1-haw.bigfish.com (Postfix) with ESMTP id 687186828FA for ; Tue, 20 Dec 2005 20:53:10 +0000 (UTC) Received: from mail2-fra.bigfish.com (localhost.localdomain [127.0.0.1]) by mail2-fra-R.bigfish.com (Postfix) with ESMTP id 556E34A803D for ; Tue, 20 Dec 2005 20:52:42 +0000 (UTC) Received: from mail8.fw-bc.sony.com (mail8.fw-bc.sony.com [160.33.98.75]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (No client certificate requested) by mail2-fra.bigfish.com (Postfix) with ESMTP id 200544A803D for ; Tue, 20 Dec 2005 20:52:42 +0000 (UTC) Message-ID: <43A73A90.3060908@am.sony.com> Date: Mon, 19 Dec 2005 14:56:16 -0800 From: Geoff Levand MIME-Version: 1.0 To: David Jander References: <821B2170E9E7F04FA38DF7EC21DE4871022BB9A9@VCAEXCH01.hq.corp.viasat.com> <200512191039.58149.david.jander@protonic.nl> In-Reply-To: <200512191039.58149.david.jander@protonic.nl> Content-Type: text/plain; charset=UTF-8 Cc: "Martin, Tim" , linuxppc-embedded@ozlabs.org Subject: Re: POSIX High Resolution Timers in LinuxPPC 2.4 List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , David Jander wrote: > Hi Tim, > > On Friday 16 December 2005 23:34, Martin, Tim wrote: > >>Could someone give me a brief history lesson on POSIX high resolution >>timers (e.g. timer_create() function) implemented in the Linux kernel on >>the PowerPC 405 architecture? Specifically: >> >>Confirm they are in the mainline 2.6 kernel now (e.g. kernel.org)? >> >>Were they ever a part of the "mainline" 2.4 linuxppc kernel (e.g >>ppc.bkbits.net)? >> >>If no, were they ever available as a patch? The stuff at >>sourceforge.net/projects/high-res-timers stops at 2.4.20 and looks like it >>was only ever working for i386, not ppc. > > > I asked a related question a while back, and got no answer (yet). > I did find this though, which you might have overlooked: > http://prdownloads.sourceforge.net/high-res-timers/ppc-hrt-2.6.10.patch?download > > I am equally puzzled about whether this has made it into mainstream, is about > to, or never will. I don't even know if it actually works. > You would do better to inquire on the HRT mailing list: http://lists.sourceforge.net/lists/listinfo/high-res-timers-discourse HRT support (from http://sourceforge.net/projects/high-res-timers/) was never accepted to mainline. It works on Ebony (PPC440), but I guess it is OK on others since it uses the PPC time base. I recommend you get the latest from CVS, which is against 2.6.12. Older versions have CVS tags. -Geoff