From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Timothy A. Seufert" <tas@mindspring.com>,
<linuxppc-dev@lists.linuxppc.org>
Subject: Re: About TAU (and ICTC)
Date: Mon, 20 Aug 2001 00:02:14 +0200 [thread overview]
Message-ID: <20010819220214.32000@smtp.wanadoo.fr> (raw)
In-Reply-To: <p05100301b7a5c073cc62@[10.0.0.42]>
>The exception would be when it's desired to use the feature for its
>original intended purpose, reduction of die temperature when that
>temperature reaches a critical threshold. That would also mean using
>the TAU the way it was intended: you set the upper and lower TAU
>thresholds as desired, and the TAU ISR turns ICTC on when the high
>threshold is passed and off when it moves past the lower.
Unfortunately, the TAU is too badly calibrated to be useful. There
_might_ be some other temp sensors in recent Apple machines, on the
I2C bus, I'll do some "probing" one of these days.
Ben.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-08-19 22:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-19 10:03 About TAU Michel Lanners
2001-08-19 15:59 ` About TAU (and ICTC) Michel Lanners
2001-08-19 19:51 ` Timothy A. Seufert
2001-08-19 20:08 ` Tony Mantler
2001-08-19 20:43 ` Geert Uytterhoeven
2001-08-19 21:23 ` Tony Mantler
2001-08-19 22:02 ` Benjamin Herrenschmidt [this message]
2001-08-19 23:57 ` Paul Mackerras
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