Re: [PATCH 2/4] drm: Add drm_object lease infrastructure

From: "Michel Dänzer" <michel@daenzer.net>
To: Keith Packard <keithp@keithp.com>, Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 2/4] drm: Add drm_object lease infrastructure
Date: Mon, 10 Apr 2017 14:16:08 +0900	[thread overview]
Message-ID: <5c0e9e01-cdfc-8915-3101-fdb4465077d0@daenzer.net> (raw)
In-Reply-To: <867f32kbyx.fsf@hiro.keithp.com>

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On 03/04/17 01:31 AM, Keith Packard wrote:
> Daniel Vetter <daniel@ffwll.ch> writes:
> 
>> I'm also not sure whether we really want sub-leases in v1, that's easy
>> to add later on, but for now just complicates stuff. Main compositor
>> should be a full master, VR can be the first lease level, we don't
>> need more I think for now?
> 
> We've discussed how leases might be used to implement multi-user
> support, so offering sub-leases means that environment could also
> support leasing resources out from the users session.
> 
> We also just don't know how useful it might be until we explore the
> space a bit more.

It should only be added upstream once it's clear that it's useful.

> Given that it takes years to get new features into distributions, I
> tend to error on the side of generality.

Why would it take years? Distros seem to generally use the latest
upstream kernel release available at release/freeze.

-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

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