[Intel-gfx] [RFC PATCH 18/42] drm/i915/lmem: support CPU relocations

[Matthew Auld]

On Thu, 14 Feb 2019 at 15:48, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> Quoting Matthew Auld (2019-02-14 14:57:16)
> > We need to support doing relocations from the CPU when dealing with LMEM
> > objects.
>
> Why not just use the GPU reloc? Please do explain the relative merits.

Are you suggesting just default to the GPU reloc path for LMEM, and
don't bother with CPU relocs? I guess that would work, I'm just
wondering if keeping the CPU reloc path around for debug might be
useful, it's at least been useful in the past, although maybe it's not
that relevant for upstream.

> -Chris
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