Date: Wed, 8 Dec 2004 01:05:04 -0800 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: "Kamal R. Prasad" <kamalp@acm.org> Cc: freebsd-hackers@freebsd.org Subject: Re: mmap() Message-ID: <20041208090504.GT19624@funkthat.com> In-Reply-To: <41B68DF5.6070708@acm.org> References: <41B20B19.3090204@acm.org> <20041206025126.GO19624@funkthat.com> <41B3F24B.1000903@acm.org> <20041206074237.GP19624@funkthat.com> <41B5DF9B.50501@acm.org> <20041207221919.GQ19624@funkthat.com> <20041207222115.GA74736@freebie.xs4all.nl> <41B68DF5.6070708@acm.org>
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Kamal R. Prasad wrote this message on Wed, Dec 08, 2004 at 10:45 +0530:
> Wilko Bulte wrote:
>
> >On Tue, Dec 07, 2004 at 02:19:19PM -0800, John-Mark Gurney wrote..
> >
> >>Kamal R. Prasad wrote this message on Tue, Dec 07, 2004 at 22:21 +0530:
> >>
> >>>There was a bug in my interface routine which probably resulted in too
> >>>many calls.
> >>>Something like *paddr=vtophys(base) instead of
> >>>*paddr=vtophys(base+offset) should result in lots of calls to the
> >>>interface.
> >>>
> >>Just remeber that vtophys is not a supported interface in HEAD, (if it
> >>still works, it will probably be removed shortly).. Also, vtophys only
> >>works on limited archs, like i386 and alpha...
> >
> >s/limited/some/
>
> So what would be the equivalent supported interface in HEAD?
bus_dma(9) It's a bit more complicated though... but with out it,
you won't be able to get your driver working on sparc64...
> BTW -man (4) usb probably needs more info than present.
I'm sure it does, feel free to send-pr patches.. :)
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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