From: Brad Boyer <flar@allandria.com>
To: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>
Cc: Arnd Bergmann <arnd@arndb.de>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-kernel@vger.kernel.org, Jeff Garzik <jgarzik@pobox.com>,
linux-ide@vger.kernel.org, takata@linux-m32r.org,
geert@linux-m68k.org, linux-m68k@lists.linux-m68k.org,
ysato@users.sourceforge.jp
Subject: Re: [PATCH] ata: libata depends on HAS_DMA
Date: Tue, 12 May 2009 21:34:09 -0700 [thread overview]
Message-ID: <20090513043409.GA13577@cynthia.pants.nu> (raw)
In-Reply-To: <alpine.DEB.1.00.0905130610240.18305@zirkon.biophys.uni-duesseldorf.de>
On Wed, May 13, 2009 at 06:12:31AM +0200, Michael Schmitz wrote:
> The Atari IDE interface does not use DMA. I don't see what addition of DMA
> mapping for IDE would achieve.
The macide driver doesn't support anything with DMA hardware either. In
fact, no m68k Macintosh has both DMA capability and an IDE controller.
However, we do support the basic DMA routines on the main m68k platforms.
It's just not used for IDE. I think the proposed change was to require
that the DMA routines be present, not that the IDE ports actually have
to have a DMA capability.
> If it doesn't interfere with plain PIO mode, fine.
I agree. There definitely needs to still be support for IDE ports that
don't have DMA capability.
Brad Boyer
flar@allandria.com
next prev parent reply other threads:[~2009-05-13 4:34 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090511222702.352192505@arndb.de>
2009-05-11 22:38 ` [PATCH] ata: libata depends on HAS_DMA Arnd Bergmann
2009-05-12 0:58 ` Jeff Garzik
2009-05-12 12:40 ` Arnd Bergmann
2009-05-12 13:05 ` Arnd Bergmann
2009-05-12 8:06 ` Alan Cox
2009-05-12 9:23 ` Arnd Bergmann
2009-05-13 3:30 ` Brad Boyer
2009-05-13 4:12 ` Michael Schmitz
2009-05-13 4:34 ` Brad Boyer [this message]
2009-05-13 8:51 ` Alan Cox
2009-05-13 8:55 ` Geert Uytterhoeven
2009-05-13 23:57 ` Robert Hancock
2009-05-14 0:18 ` FUJITA Tomonori
2009-05-15 5:31 ` Tejun Heo
2009-05-15 11:16 ` Arnd Bergmann
2009-05-15 11:21 ` Tejun Heo
2009-05-15 11:55 ` Arnd Bergmann
2009-05-17 9:00 ` Robert Hancock
2009-05-17 19:38 ` Arnd Bergmann
2009-05-17 20:05 ` Jeff Garzik
2009-05-17 22:45 ` [PATCH] asm-generic: add a dma-mapping.h file Arnd Bergmann
2009-05-18 6:03 ` Geert Uytterhoeven
2009-05-18 8:28 ` Arnd Bergmann
2009-05-18 10:45 ` FUJITA Tomonori
2009-05-18 14:45 ` Arnd Bergmann
2009-05-18 22:44 ` FUJITA Tomonori
2009-05-19 16:22 ` Arnd Bergmann
2009-05-19 17:01 ` Grant Grundler
2009-05-19 17:40 ` Arnd Bergmann
2009-05-19 18:08 ` Grant Grundler
2009-05-22 12:12 ` FUJITA Tomonori
2009-05-22 14:07 ` Arnd Bergmann
2009-05-22 14:38 ` FUJITA Tomonori
2009-05-22 15:05 ` Arnd Bergmann
2009-05-26 4:36 ` FUJITA Tomonori
2009-05-18 22:54 ` Jeff Garzik
2009-05-18 23:22 ` FUJITA Tomonori
2009-05-18 10:45 ` [PATCH] ata: libata depends on HAS_DMA FUJITA Tomonori
2009-05-13 10:39 ` Arnd Bergmann
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=20090513043409.GA13577@cynthia.pants.nu \
--to=flar@allandria.com \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=arnd@arndb.de \
--cc=geert@linux-m68k.org \
--cc=jgarzik@pobox.com \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=schmitz@biophys.uni-duesseldorf.de \
--cc=takata@linux-m32r.org \
--cc=ysato@users.sourceforge.jp \
/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).