[Intel-gfx] [PATCH] drm/i915: Deny wrapping an userptr into a framebuffer

Tvrtko Ursulin tvrtko.ursulin at linux.intel.com
Tue Oct 13 07:04:18 PDT 2015

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,

Or even after the client exits in the new world order!



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