From owner-freebsd-hackers Mon Jun 19 9:36:52 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.40.131]) by hub.freebsd.org (Postfix) with ESMTP id E6C6B37B68F; Mon, 19 Jun 2000 09:36:47 -0700 (PDT) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.9.3/8.9.3) with ESMTP id SAA45527; Mon, 19 Jun 2000 18:36:14 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) To: Warner Losh Cc: Mitsuru IWASAKI , bfischer@Techfak.Uni-Bielefeld.DE, acpi-jp@jp.freebsd.org, dcs@newsguy.com, freebsd-current@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG Subject: Re: ACPI project progress report In-reply-to: Your message of "Mon, 19 Jun 2000 10:30:53 MDT." <200006191630.KAA60652@harmony.village.org> Date: Mon, 19 Jun 2000 18:36:14 +0200 Message-ID: <45525.961432574@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <200006191630.KAA60652@harmony.village.org>, Warner Losh writes: >In message <20000620003220R.iwasaki@jp.FreeBSD.org> Mitsuru IWASAKI writes: >: Maybe I'm wrong because of lack of my understanding on crush dump and >: loader. Please help us :-) > >I think that you might be able to do this. The real tricky part maybe >saving hardware RAM that the drivers expect to be there when you >wakeup. I thinking of video ram and the X server's font cache, to >name one example. Drivers will need a "your hardware may have been zonked" entrypoint, think about the i8254 counter or all the weird versions of write only or "write here - read there" I/O registers in existence. Obviously the video driver will need to send a signal or clue to the Xserver saying "you own the device, you'd better do something" -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD coreteam member | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message