From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: Revert "[ARM] pxa: remove now unnecessary dma_needs_bounce()"
Date: Tue, 22 Mar 2011 08:17:46 +0000 [thread overview]
Message-ID: <20110322081746.GA17264@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <AANLkTinVBCpinGfMkFbb_RpJbdAJiuQ57aWjqj5F=FoB@mail.gmail.com>
On Mon, Mar 21, 2011 at 07:00:57PM -0700, Barry Song wrote:
> For sa1111, why don't PCB design just connect one sdram to bank0 and
> make software use bank0 as DMA bank if bank0 is not slower than
> bank1/2/3? If bank0 is same with bank1/2/3 in hardware timing, there
> is no reason to make a strange design which uses bank1/2/3 as DMA
> area.
Who knows why board and SoC designers do silly things. If we could stop
that, the kernel would be *much* simpler.
next prev parent reply other threads:[~2011-03-22 8:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-21 6:12 Revert "[ARM] pxa: remove now unnecessary dma_needs_bounce()" Barry Song
2011-03-21 7:21 ` Eric Miao
2011-03-21 14:54 ` Russell King - ARM Linux
2011-03-21 14:58 ` Eric Miao
2011-03-21 15:03 ` Russell King - ARM Linux
2011-03-22 2:00 ` Barry Song
2011-03-22 8:17 ` Russell King - ARM Linux [this message]
2011-03-23 3:15 ` Barry Song
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=20110322081746.GA17264@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=linux-arm-kernel@lists.infradead.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).