Date: Tue, 26 Jan 1999 18:26:56 -0800 (PST) From: Matthew Jacob <mjacob@feral.com> To: Simon Shapiro <shimon@simon-shapiro.org> Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: Alpha Driver Help Requested Message-ID: <Pine.LNX.4.04.9901261825410.22055-100000@feral-gw> In-Reply-To: <XFMail.990126022019.shimon@simon-shapiro.org>
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Simon- I even have a DPT and an Alpha (PC164), but lack of time, really, to help much with this. Which alpha platform are you using? On Tue, 26 Jan 1999, Simon Shapiro wrote: > [ Sorry for the incomplete message. Slip of the trackball :-( ] > > Hi Y'll > > I am back to trying to get the DPT drivers to work in FreeBSD on the Alpha. > I feel I need some expoert help to get this driver to work. > > Pogress Summary (current state): > > * I have upgraded to source tree to 1990114. > > * This is a pristine source tree, uncontaminated by any of my HAS work. > > * I have removed most of the assumptions (in the CAM version I am working > from) that 32bit integer and a physical address and a pointer are all > synonyms. these changes are syntatically kludgy but, for the case in > hand (only i386 and alpha on the tree, with i386 being 32bit pointers) > they appear correct. Either way, this is not where the problem is. > > * The driver panics on trap entry 0x4 (unaligned access fault). This > happens in the following code snippet: > > dpt_outl(dpt, HA_WDMAADDR, cmd_busaddr); > > All the arguments are of the correct type. > > * Dpt_outl parses as per this macro: > > #define dpt_outl(dpt, port, value) \ > bus_space_write_4((dpt)->tag, (dpt)->bsh, port, value) > > * I have tried to track what bus_space_write_4 does, and it seems to me it > does what it should. > > I would really like to have this problem licked so I can get the driver > working. Quite a bit IRT FreeBSD at my place of employment rides on being > able to complete this task. > > Logistically, I have a dedicated source machine and a dedicate dtest > machine, both can be available if one desires to login and try something. > > > > Sincerely, > > Simon Shapiro > Research Fellow, Office of Technology ShapiroS@MindSpring.com > MindSpring Enterprises, Inc. 404.815.0770 ext. 2057 > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-alpha" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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