| 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
| ||
|
Message-ID: <AANLkTini2BJr9x5-03MV1wFTUH4M+REzOwxUS_Cc_sHc@mail.gmail.com> Date: Tue, 10 Aug 2010 23:17:40 +0200 From: Linus Walleij <linus.ml.walleij@...il.com> To: Sascha Hauer <s.hauer@...gutronix.de> Cc: linux kernel <linux-kernel@...r.kernel.org>, Dan Williams <dan.j.williams@...el.com>, Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com> Subject: Re: dmaengine cyclic transfers 2010/8/10 Sascha Hauer <s.hauer@...gutronix.de>: > Author: Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com> > Date: Wed Apr 1 15:47:02 2009 +0200 > > dw_dmac: add cyclic API to DW DMA driver > > This could be very useful for the SDMA engine aswell. What are the > reasons this is not implemented in the generic dmaengine API but as > an extension to a specific driver? No reasons what I know. There was a similar code snippet in Peter Pearse's PL08x driver as well, I just didn't know what to do with it. > Should I also implement it like > this or isn't it better to extend the dmaengine itself? This is going to be generally useful, so please extend the DMAengine if I have my say. I actually miss two functions from the engine: 1) Single buffer slave transfers (without sglist) 2) Cyclic buffers (esp good for audio) The first I have a patch for, will repost. Yours, Linus Walleij -- 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/
Powered by blists - more mailing lists