Re: [PATCH] fixes to drm-next - TTM DMA code (v1)

Hi!

I'm not whether any drivers are still using the AGP backend?

Actually the openchrome projects KMS kernel uses a AGP backend.

Calling unpopulate / (previous clear) each time unbind is done should be quite inefficient with that one, as AGP sets up its own data structures and copies page tables on each populate. That should really be avoided unless there is a good reason to have it.

/Thomas

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