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Date: Mon, 9 Sep 2002 12:16:28 -0600 (MDT)
From: Kurt Ferreira <kurdt@nmt.edu>
To: linux-kernel@vger.kernel.org
cc: Imran Badr <imran.badr@cavium.com>,
       "Richard B. Johnson" <root@chaos.analogic.com>
Subject: RE: Calculating kernel logical address ..
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On Mon, 9 Sep 2002, Richard B. Johnson wrote:

> Well I just read Documentation/DMA-mapping.txt as advised by David
> and it seems as though it will no longer be possible to do what
> many programmers have been wanting to do, to wit:
>
> (1) In user-code, allocate a buffer.
> (2) Lock that buffer into memory.
> (3) Call some driver that DMAs data to/from that buffer.
>
Hmm.  IIRC (big if) did not kiobufs allow something similar to this.  It
has been long since I have looked though.

Kurt

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