linux-kernel - Re: [RFC simple allocator v2 1/2] Create Simple Allocator module

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Date:   Wed, 15 Feb 2017 12:15:26 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Linaro Kernel Mailman List <linaro-kernel@...ts.linaro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Laura Abbott <labbott@...hat.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "Clark, Rob" <robdclark@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Hans Verkuil <hverkuil@...all.nl>
Subject: Re: [RFC simple allocator v2 1/2] Create Simple Allocator module

On Tue, Feb 14, 2017 at 09:59:55PM +0200, Laurent Pinchart wrote:
> On Tuesday 14 Feb 2017 20:44:44 Daniel Vetter wrote:

> > ADF was probably the best example in this. KMS also took a while until all
> > the fbdev wheels have been properly reinvented (some are still the same old
> > squeaky onces as fbdev had, e.g. fbcon).

> > And I don't think destaging ION is going to be hard, just a bit of
> > work (could be a nice gsoc or whatever).

> Oh, technically speaking, it would be pretty simple. The main issue is to 
> decide whether we want to commit to the existing ION API. I don't :-)

Right, we need to figure out what people should be doing and let them
work on it.  At the minute anyone who wants to use this stuff in
mainline is kind of stuck as attempts to add ION drivers get pushback

   https://lkml.org/lkml/2016/11/7/806

but so do attempts to do something different (there was a statement in
that thread that new ION drivers could be added if we could ever figure
out bindings but I'm not sure there's any prospect of that).  There's no
clear direction for people to follow if they want to make progress.

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