linux-kernel - Re: [PATCHv2] DMAEngine: Let dmac drivers to set chan

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 27 Jul 2011 13:36:09 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	"Koul, Vinod" <vinod.koul@...el.com>
Cc:	Jaswinder Singh <jaswinder.singh@...aro.org>,
	"Williams, Dan J" <dan.j.williams@...el.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org, rmk+kernel@....linux.org.uk,
	linus.walleij@...ricsson.com, per.friden@...ricsson.com,
	wei.zhang@...escale.com, ebony.zhu@...escale.com,
	iws@...o.caltech.edu, s.hauer@...gutronix.de,
	maciej.sosnowski@...el.com, saeed@...vell.com,
	shawn.guo@...escale.com, yur@...raft.com, agust@...x.de,
	iwamatsu.nobuhiro@...esas.com, per.forlin@...ricsson.com,
	jonas.aberg@...ricsson.com, anemo@....ocn.ne.jp
Subject: Re: [PATCHv2] DMAEngine: Let dmac drivers to set chan_id

On Wed, Jul 27, 2011 at 03:04:24PM +0530, Koul, Vinod wrote:

> Is this a dma controller limitation or due to the fact even channels get
> assigned h/w interface corresponding to TX and so on.

I think the later but not sure how it is implemented in hw. The
documentation only states that even channels are for TX and odd for RX.
There is no way of changing the direction as far I can tell.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/