From: Clemens Ladisch <clemens@ladisch.de>
To: Leon Woestenberg <leon.woestenberg@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
linux-pci@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: mmap() implementation for pci_alloc_consistent() memory?
Date: Mon, 23 May 2011 10:30:16 +0200 [thread overview]
Message-ID: <4DDA1B18.3080201@ladisch.de> (raw)
In-Reply-To: <BANLkTi=P6WP-+BiqEwCRTxaNTqNHT988wA@mail.gmail.com>
Leon Woestenberg wrote:
> Having dma_mmap_coherent() there is good for one or two archs, but how
> can we built portable drivers if the others arch's are still missing?
Easy: Resolve all issues, implement it for all the other arches, and add
it to the official DMA API.
> How would dma_mmap_coherent() look like on x86?
X86 and some others are always coherent; just use vm_insert_page() or
remap_page_range().
Regards,
Clemens
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-05-23 8:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 22:14 Leon Woestenberg
2011-05-19 1:04 ` Leon Woestenberg
2011-05-19 14:59 ` Konrad Rzeszutek Wilk
2011-05-19 15:58 ` Clemens Ladisch
2011-05-19 22:10 ` Leon Woestenberg
2011-05-20 6:51 ` Clemens Ladisch
2011-05-20 8:17 ` Takashi Iwai
2011-05-21 10:59 ` Leon Woestenberg
2011-05-23 8:30 ` Clemens Ladisch [this message]
2011-05-24 14:18 ` Leon Woestenberg
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=4DDA1B18.3080201@ladisch.de \
--to=clemens@ladisch.de \
--cc=konrad.wilk@oracle.com \
--cc=leon.woestenberg@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-pci@vger.kernel.org \
--cc=tiwai@suse.de \
/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