From: Geoff Levand <geoffrey.levand@am.sony.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc64-dev@ozlabs.org,
"debian-powerpc@lists.debian.org"
<debian-powerpc@lists.debian.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: iMac G5: experimental thermal & cpufreq support
Date: Thu, 29 Sep 2005 16:28:02 -0700 [thread overview]
Message-ID: <433C7882.20000@am.sony.com> (raw)
In-Reply-To: <1127978432.6102.53.camel@gaston>
Benjamin Herrenschmidt wrote:
> The algorithm itself is extracted from darwin. However, it's a rather
> complex modified version of the PID algorithm, and thus it could use
> some review to make sure I got everything right.
>
As we are already in the digital domain, I would think it would be
more savvy to use a digital controller than try to simulate an
analog controller... Why don't you abstract the control algorithm
such that you can plug in others as they are developed.
-Geoff
WARNING: multiple messages have this Message-ID (diff)
From: Geoff Levand <geoffrey.levand@am.sony.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc64-dev@ozlabs.org,
linuxppc-dev list <linuxppc-dev@ozlabs.org>,
"debian-powerpc@lists.debian.org"
<debian-powerpc@lists.debian.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: iMac G5: experimental thermal & cpufreq support
Date: Thu, 29 Sep 2005 16:28:02 -0700 [thread overview]
Message-ID: <433C7882.20000@am.sony.com> (raw)
In-Reply-To: <1127978432.6102.53.camel@gaston>
Benjamin Herrenschmidt wrote:
> The algorithm itself is extracted from darwin. However, it's a rather
> complex modified version of the PID algorithm, and thus it could use
> some review to make sure I got everything right.
>
As we are already in the digital domain, I would think it would be
more savvy to use a digital controller than try to simulate an
analog controller... Why don't you abstract the control algorithm
such that you can plug in others as they are developed.
-Geoff
next prev parent reply other threads:[~2005-09-29 23:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-29 7:20 iMac G5: experimental thermal & cpufreq support Benjamin Herrenschmidt
2005-09-29 7:20 ` Benjamin Herrenschmidt
2005-09-29 8:40 ` Benjamin Herrenschmidt
2005-09-29 8:40 ` Benjamin Herrenschmidt
2005-09-30 7:12 ` Benjamin Herrenschmidt
2005-09-30 7:12 ` Benjamin Herrenschmidt
2005-09-29 23:28 ` Geoff Levand [this message]
2005-09-29 23:28 ` Geoff Levand
2005-09-30 0:26 ` Benjamin Herrenschmidt
2005-09-30 0:26 ` Benjamin Herrenschmidt
2005-09-30 1:00 ` Dean Hamstead
2005-09-30 1:00 ` Dean Hamstead
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