From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, stable@vger.kernel.org
Subject: Re: [PATCH] drm/i915: Deny wrapping an userptr into a framebuffer
Date: Tue, 13 Oct 2015 15:04:18 +0100 [thread overview]
Message-ID: <561D0F62.10707@linux.intel.com> (raw)
In-Reply-To: <561D0E72.9060507@linux.intel.com>
On 13/10/15 15:00, Tvrtko Ursulin wrote:
>
> On 13/10/15 14:22, Chris Wilson wrote:
>> Pinning a userptr onto the hardware raises interesting questions about
>> the lifetime of such a surface as the framebuffer extends that life
>> beyond the client's address space. That is the hardware will need to
>> keep scanning out from the backing storage even after the client wants
>> to remap its address space. As the hardware pins the backing storage,
P.S.
Or even after the client exits in the new world order!
Regards,
Tvrtko
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next prev parent reply other threads:[~2015-10-13 14:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-13 13:22 [PATCH] drm/i915: Deny wrapping an userptr into a framebuffer Chris Wilson
2015-10-13 14:00 ` [Intel-gfx] " Tvrtko Ursulin
2015-10-13 14:04 ` Tvrtko Ursulin [this message]
2015-10-13 14:08 ` Jani Nikula
2015-10-13 15:29 ` Daniel Vetter
2015-10-22 23:23 ` [Intel-gfx] " Kristian Høgsberg
2015-10-23 8:04 ` Daniel Vetter
2015-10-23 9:28 ` [Intel-gfx] " Chris Wilson
2015-10-23 19:20 ` Kristian Høgsberg
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