From: Brad Boyer <flar@allandria.com>
To: Adrian Cox <adrian@humboldt.co.uk>
Cc: John Whitney <jwhitney-linuxppc@sands-edge.com>,
"Michael R. Zucca" <mrz5149@acm.org>,
Linux/PPC Development <linuxppc-dev@lists.linuxppc.org>
Subject: Re: Problems with dma_alloc_coherent()
Date: Sat, 3 Apr 2004 09:33:58 -0800 [thread overview]
Message-ID: <20040403173358.GA19686@pants.nu> (raw)
In-Reply-To: <1080978857.7999.813.camel@newt>
On Sat, Apr 03, 2004 at 08:54:18AM +0100, Adrian Cox wrote:
> I've not encountered a chip with more than one platform DMA controller.
> Rather than having a top level API with low-level providers, consider
> picking the implementation at Kconfig time.
It's generally better not to decide this sort of thing at compile time
if you want it to be portable. If you want an example of a kernel that
can do everything, try compiling Linux for m68k sometime. You can have
one kernel that can support Amigas, Ataris, Macs, and a few others all
at once. I'm sure it goes without saying that pretty much everything
other than the base CPU is different on each platform. In fact, even
just with 68k based Macs, Apple changed stuff so often that any two
models may have almost nothing in common.
Brad Boyer
flar@allandria.com
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-04-03 17:33 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-01 15:59 Problems with dma_alloc_coherent() John Whitney
2004-04-01 16:30 ` John Whitney
2004-04-01 16:51 ` Dan Malek
2004-04-01 17:01 ` Tom Rini
2004-04-01 17:05 ` Matt Porter
2004-04-01 17:51 ` John Whitney
2004-04-01 18:16 ` Matt Porter
2004-04-01 18:19 ` Eugene Surovegin
2004-04-01 18:33 ` Eugene Surovegin
2004-04-01 18:33 ` John Whitney
2004-04-01 18:40 ` Eugene Surovegin
2004-04-01 18:48 ` John Whitney
2004-04-01 18:55 ` Dan Malek
2004-04-01 18:59 ` Eugene Surovegin
2004-04-01 19:10 ` John Whitney
2004-04-01 19:17 ` Eugene Surovegin
2004-04-01 19:35 ` John Whitney
2004-04-01 20:52 ` Michael R. Zucca
2004-04-01 22:00 ` Eugene Surovegin
2004-04-01 22:39 ` Michael R. Zucca
2004-04-02 16:50 ` John Whitney
2004-04-02 18:50 ` Michael R. Zucca
2004-04-02 19:27 ` John Whitney
2004-04-02 20:20 ` Michael R. Zucca
2004-04-02 21:01 ` John Whitney
2004-04-03 7:54 ` Adrian Cox
2004-04-03 12:43 ` John Whitney
2004-04-05 9:05 ` Adrian Cox
2004-04-03 17:33 ` Brad Boyer [this message]
2004-04-03 23:17 ` Paul Mackerras
2004-04-04 8:15 ` Adrian Cox
2004-04-02 22:54 ` Paul Mackerras
2004-04-03 7:33 ` Adrian Cox
2004-04-04 22:56 ` Benjamin Herrenschmidt
2004-04-02 5:45 ` Christoph Hellwig
2004-04-01 20:49 ` Matt Porter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040403173358.GA19686@pants.nu \
--to=flar@allandria.com \
--cc=adrian@humboldt.co.uk \
--cc=jwhitney-linuxppc@sands-edge.com \
--cc=linuxppc-dev@lists.linuxppc.org \
--cc=mrz5149@acm.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).