From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx205.postini.com [74.125.245.205]) by kanga.kvack.org (Postfix) with SMTP id 35FF86B004D for ; Fri, 23 Dec 2011 05:08:25 -0500 (EST) Received: by vcbfo11 with SMTP id fo11so7551384vcb.9 for ; Fri, 23 Dec 2011 02:08:24 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: <1324283611-18344-1-git-send-email-sumit.semwal@ti.com> <20111220193117.GD3883@phenom.ffwll.local> From: "Semwal, Sumit" Date: Fri, 23 Dec 2011 15:38:03 +0530 Message-ID: Subject: Re: [Linaro-mm-sig] [RFC v3 0/2] Introduce DMA buffer sharing mechanism Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Dave Airlie Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux@arm.linux.org.uk, arnd@arndb.de, jesse.barker@linaro.org, m.szyprowski@samsung.com, rob@ti.com, t.stanislaws@samsung.com, patches@linaro.org, daniel@ffwll.ch On Wed, Dec 21, 2011 at 1:50 AM, Dave Airlie wrote: >> >> I think this is a really good v1 version of dma_buf. It contains all the >> required bits (with well-specified semantics in the doc patch) to >> implement some basic use-cases and start fleshing out the integration with >> various subsystem (like drm and v4l). All the things still under >> discussion like >> - userspace mmap support >> - more advanced (and more strictly specified) coherency models >> - and shared infrastructure for implementing exporters >> are imo much clearer once we have a few example drivers at hand and a >> better understanding of some of the insane corner cases we need to be able >> to handle. >> >> And I think any risk that the resulting clarifications will break a basic >> use-case is really minimal, so I think it'd be great if this could go into >> 3.3 (maybe as some kind of staging/experimental infrastructure). >> >> Hence for both patches: >> Reviewed-by: Daniel Vetter > > Yeah I'm with Daniel, I like this one, I can definitely build the drm > buffer sharing layer on top of this. > > How do we see this getting merged? I'm quite happy to push it to Linus > if we don't have an identified path, though it could go via a Linaro > tree as well. > > so feel free to add: > Reviewed-by: Dave Airlie Thanks Daniel and Dave! I guess we can start with staging for 3.3, and see how it shapes up. I will post the latest patch version pretty soon. Arnd, Dave: do you have any preference on the path it takes to get merged? In my mind, Linaro tree might make more sense, but I would leave it upto you gentlemen. > > Dave. Best regards, ~Sumit. -- 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: email@kvack.org