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From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: Chris Wilson <chris@chris-wilson.co.uk>,
	Intel-gfx@lists.freedesktop.org,
	Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: Re: [RFC 3/5] drm/i915: Infrastructure for supporting different GGTT views per object
Date: Thu, 30 Oct 2014 16:55:41 +0000	[thread overview]
Message-ID: <54526D8D.2090304@linux.intel.com> (raw)
In-Reply-To: <20141030164153.GB18917@nuc-i3427.alporthouse.com>


On 10/30/2014 04:41 PM, Chris Wilson wrote:
> On Thu, Oct 30, 2014 at 04:39:36PM +0000, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> Things like reliable GGTT mappings and mirrored 3d display will need to be
>> to map the same object twice into the GGTT.
>
> What's a reliable GGTT mapping and how does it differ from today's
> notoriously unreliable mappings?

Ask Daniel. :P But you are probably aiming at the short commit message, 
which I justify with the RFC tag. :)

As far as I understand it idea is to allow mapping a subset of an object 
to work around the 256Mb limit of the mappable region. How it was 
described sounded a bit like VM inside a VM but I am more interested in 
the infrastructure than this particular justification.

Regards,

Tvrtko
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  reply	other threads:[~2014-10-30 16:56 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-30 16:39 [RFC 0/5] Preparation for multiple VMA and GGTT views per GEM object Tvrtko Ursulin
2014-10-30 16:39 ` [PATCH 1/5] drm/i915: Move flags describing VMA mappings into the VMA Tvrtko Ursulin
2014-10-30 16:39 ` [RFC 2/5] drm/i915: Prepare for the idea there can be multiple VMA per VM Tvrtko Ursulin
2014-10-30 16:39 ` [RFC 3/5] drm/i915: Infrastructure for supporting different GGTT views per object Tvrtko Ursulin
2014-10-30 16:41   ` Chris Wilson
2014-10-30 16:55     ` Tvrtko Ursulin [this message]
2014-11-03 15:58   ` Daniel Vetter
2014-11-03 16:34     ` Tvrtko Ursulin
2014-11-03 16:52       ` Daniel Vetter
2014-11-03 17:20         ` Tvrtko Ursulin
2014-11-03 17:29           ` Daniel Vetter
2014-11-04 11:15             ` Tvrtko Ursulin
2014-11-04 11:23               ` Daniel Vetter
2014-11-03 17:35           ` Daniel Vetter
2014-11-04 10:25             ` Tvrtko Ursulin
2014-10-30 16:39 ` [PATCH 4/5] drm/i915: Make scatter-gather helper available to the driver Tvrtko Ursulin
2014-11-03 16:02   ` Daniel Vetter
2014-11-03 16:18     ` Tvrtko Ursulin
2014-11-03 16:53       ` Daniel Vetter
2014-11-03 16:05   ` Daniel Vetter
2014-11-03 20:30     ` Chris Wilson
2014-11-04 11:56       ` Imre Deak
2014-10-30 16:39 ` [RFC 5/5] drm/i915: Make intel_pin_and_fence_fb_obj take plane and framebuffer Tvrtko Ursulin
2014-11-03 16:18   ` Daniel Vetter
2014-11-06 14:39 ` [RFC] drm/i915: Infrastructure for supporting different GGTT views per object Tvrtko Ursulin
2014-11-12 17:02   ` Daniel Vetter
2014-11-24 12:32     ` Tvrtko Ursulin
2014-11-24 12:36       ` Chris Wilson
2014-11-24 13:57       ` Daniel Vetter
2014-11-27 14:52   ` [PATCH] " Tvrtko Ursulin
2014-11-28  0:59     ` [PATCH] drm/i915: Infrastructure for supporting shuang.he
2014-11-28 17:31     ` [PATCH] drm/i915: Infrastructure for supporting different GGTT views per object Daniel Vetter
2014-12-01 11:32       ` Tvrtko Ursulin
2014-12-01 14:46         ` Tvrtko Ursulin
2014-12-01 16:01           ` Daniel Vetter
2014-12-01 16:39             ` Tvrtko Ursulin
2014-12-01 17:16               ` Daniel Vetter
2014-12-01 17:24                 ` Tvrtko Ursulin
2014-12-01 16:07         ` Daniel Vetter
2014-12-01 16:34           ` Tvrtko Ursulin
2014-12-01 17:19             ` Daniel Vetter
2014-12-01 17:50               ` Tvrtko Ursulin
2014-12-02  9:12                 ` Daniel Vetter

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