Re: Allow ttm_buffer_object without resource

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Am 29.03.22 um 16:02 schrieb Daniel Vetter:
On Tue, Mar 29, 2022 at 01:02:32PM +0200, Christian König wrote:
Hi guys,

this patch set cleans up the handling of TTM buffer objects quite a bit
by allowing to create them without allocating a ttm_resource as well.

That's not only cleaner in general, but also a necessary prerequisite for
quite a number of related work.
Maybe there's some threads I missed, but I can't really guess what this
could be useful for without even a hint.

Well about a week ago Bob send me a partial implementation of this and said he needs it for i915. What exactly i915 needs here I'm not sure about either.

I have this cleanup in the pipeline because amdgpu wants to improve his page table handling with this and independent of those driver use case patches #10 and #11 drop allocating dummy resources for two use cases in TTM.

Christian.

-Daniel




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