From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Grover, Andrew" <andrew.grover@intel.com>,
<linux-kernel@vger.kernel.org>
Subject: RE: [RFC] New Driver Model for 2.5
Date: Wed, 24 Oct 2001 20:45:38 +0200 [thread overview]
Message-ID: <20011024184538.15471@smtp.adsl.oleane.com> (raw)
In-Reply-To: <59885C5E3098D511AD690002A5072D3C42D6A1@orsmsx111.jf.intel.com>
In-Reply-To: <59885C5E3098D511AD690002A5072D3C42D6A1@orsmsx111.jf.intel.com>
>
>Awesome.
>
>So non i386 archs do not have the problem with the video bios having to run
>on resume, or did you have to handle this somehow?
Fortunately, Mac laptops don't shut the chip down, the PM microcontroller will
just suspend the clock to it. fbdev's are mandatory on macs, and so we use the
fbdev for mach64 or r128 (the 2 types of chips you find on mac laptops, radeon
is coming soon however) to save a few things and put the chip in D2 mode
(or vendor specific suspend mode for mach64).
The problem do exist with Mac desktops as they power off the PCI and AGP
slots. That's the main reason why I don't add support for those in Linux
currently. We need some way to revive the card, which can be either done
with a chip-specific init sequence (in the fbdev), a small forth emulator
with enough of Open Firmware environement to run the OF driver for the
card, or a shell to run the MacOS driver for the card. All of these
solutions are tricky however.
Ben.
next prev parent reply other threads:[~2001-10-24 18:45 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-24 17:56 Grover, Andrew
2001-10-24 18:45 ` Benjamin Herrenschmidt [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-10-19 23:33 Benjamin Herrenschmidt
2001-10-20 0:09 ` Linus Torvalds
2001-10-20 9:28 ` Benjamin Herrenschmidt
2001-10-21 17:09 ` Pavel Machek
2001-10-23 0:19 ` Patrick Mochel
2001-10-23 0:31 ` Alan Cox
2001-10-23 0:29 ` Patrick Mochel
2001-10-23 7:53 ` Alan Cox
2001-10-23 15:10 ` Jonathan Lundell
2001-10-23 15:49 ` Alan Cox
2001-10-23 20:22 ` Benjamin Herrenschmidt
2001-10-23 20:54 ` Alan Cox
2001-10-24 0:26 ` Benjamin Herrenschmidt
2001-10-24 9:57 ` Alan Cox
2001-10-24 10:34 ` Benjamin Herrenschmidt
2001-10-24 10:54 ` Alan Cox
2001-10-24 13:04 ` Benjamin Herrenschmidt
2001-10-24 13:25 ` Alan Cox
2001-10-24 16:19 ` Linus Torvalds
2001-10-24 16:36 ` Michael H. Warfield
2001-10-24 16:45 ` Linus Torvalds
2001-10-24 22:48 ` Alan Cox
2001-10-24 16:15 ` Linus Torvalds
2001-10-24 16:46 ` Xavier Bestel
2001-10-24 16:54 ` Patrick Mochel
2001-10-24 16:55 ` Linus Torvalds
2001-10-24 22:45 ` Alan Cox
2001-10-24 17:33 ` Benjamin Herrenschmidt
2001-10-24 22:41 ` Alan Cox
2001-10-24 22:41 ` Linus Torvalds
2001-10-25 7:58 ` Benjamin Herrenschmidt
2001-10-25 12:22 ` Alan Cox
2001-10-25 14:57 ` Benjamin Herrenschmidt
2001-10-25 8:03 ` Benjamin Herrenschmidt
2001-10-25 8:09 ` Benjamin Herrenschmidt
2001-10-25 12:20 ` Alan Cox
2001-10-25 21:47 ` Pavel Machek
2001-10-24 22:50 ` Alan Cox
2001-10-25 4:14 ` Linus Torvalds
2001-10-25 12:42 ` Alan Cox
2001-10-25 21:52 ` Xavier Bestel
2001-10-25 23:53 ` Benjamin Herrenschmidt
2001-10-25 23:53 ` Alan Cox
2001-10-26 11:35 ` Helge Hafting
2001-10-26 12:38 ` Alan Cox
2001-10-25 8:27 ` Rob Turk
2001-10-25 10:01 ` Benjamin Herrenschmidt
2001-10-25 10:02 ` Helge Hafting
2001-10-25 14:20 ` Victor Yodaiken
2001-10-25 14:44 ` Jeff Garzik
2001-10-25 14:45 ` Jeff Garzik
2001-10-25 15:22 ` Rob Turk
2001-10-25 15:44 ` Jonathan Lundell
2001-10-25 16:26 ` David Lang
2001-10-25 21:59 ` Pavel Machek
2001-10-25 21:32 ` Rob Turk
2001-10-24 17:01 ` Mike Anderson
2001-10-25 9:02 ` Eric W. Biederman
2001-10-25 9:29 ` Linus Torvalds
2001-10-25 9:47 ` Benjamin Herrenschmidt
2001-10-25 10:11 ` Eric W. Biederman
2001-10-25 10:59 ` Linus Torvalds
2001-10-24 15:18 ` Jonathan Lundell
2001-10-24 15:41 ` Linus Torvalds
2001-10-24 15:59 ` Alan Cox
2001-10-24 15:56 ` Linus Torvalds
2001-10-23 9:44 ` Pavel Machek
2001-10-23 11:03 ` Benjamin Herrenschmidt
2001-10-23 11:49 ` Benjamin Herrenschmidt
2001-10-23 10:54 ` Benjamin Herrenschmidt
2001-10-19 21:43 Grover, Andrew
2001-10-19 17:01 Kevin Easton
2001-10-19 18:40 ` Patrick Mochel
2001-10-17 23:52 Patrick Mochel
2001-10-18 6:23 ` Jeff Garzik
2001-10-18 12:13 ` Benjamin Herrenschmidt
2001-10-18 16:19 ` Patrick Mochel
2001-10-18 17:38 ` Tim Jansen
2001-10-18 22:06 ` Benjamin Herrenschmidt
2001-10-19 17:09 ` Kai Henningsen
2001-10-18 22:10 ` Kai Henningsen
2001-10-19 18:26 ` Patrick Mochel
2001-10-19 19:02 ` Tim Jansen
2001-10-19 19:21 ` Mike Fedyk
2001-10-19 20:07 ` Tim Jansen
2001-10-19 20:24 ` Mike Fedyk
2001-10-19 22:25 ` Tim Jansen
2001-10-20 13:47 ` Kai Henningsen
2001-10-20 1:41 ` john slee
2001-10-20 13:52 ` Kai Henningsen
2001-10-22 11:02 ` Padraig Brady
2001-10-27 11:01 ` Kai Henningsen
2001-10-19 7:57 ` Henning P. Schmiedehausen
2001-10-19 8:09 ` Jeff Garzik
2001-10-19 8:31 ` Keith Owens
2001-10-19 8:43 ` Jeff Garzik
2001-10-19 18:50 ` Tim Jansen
2001-10-19 15:21 ` Taral
2001-10-19 23:30 ` Benjamin Herrenschmidt
2001-10-19 23:54 ` Benjamin Herrenschmidt
2001-10-18 15:17 ` Patrick Mochel
2001-10-18 16:08 ` Taral
2001-10-18 16:52 ` Jonathan Lundell
2001-10-18 17:38 ` Patrick Mochel
2001-10-18 17:41 ` Patrick Mochel
2001-10-18 18:28 ` Jonathan Lundell
2001-10-18 19:49 ` Patrick Mochel
2001-10-18 20:40 ` Jeff Garzik
2001-10-18 21:32 ` John Alvord
2001-10-18 22:23 ` Benjamin Herrenschmidt
2001-10-18 22:26 ` Jeff Garzik
2001-10-18 22:18 ` Benjamin Herrenschmidt
2001-10-18 23:30 ` Patrick Mochel
2001-10-18 23:44 ` Benjamin Herrenschmidt
2001-10-18 23:52 ` Jeff Garzik
2001-10-19 17:12 ` Jonathan Lundell
2001-10-18 17:05 ` Jonathan Corbet
2001-10-18 17:33 ` Patrick Mochel
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