[RFC] make VM handling async

[Jerome Glisse]

On Mon, Aug 13, 2012 at 6:25 AM, Christian König
<deathsimple at vodafone.de> wrote:
> Yeah, I know I'm on vacation, but without coding I die of boringness in less
> than a week.
>
> This patchset is currently based on Jeromes VA fencing patch, but in the end
> makes it superfluous. It just moves the whole VM handling into the CP ring,
> removing the need to wait for anything directly in the VM code, the any waiting
> that happens is now in the allocation of page tables and that happens only on
> allocation of new VM space and not on freeing it, which in turn makes handling
> allot more simpler.
>
> It's not 100% complete cause page table updates should be made with the DMA
> ring, but we haven't released documentation for that yet, so I currently
> use CP memory writes instead.
>
> Please take a look and tell me what you think about it.
>
> Cheers,
> Christian.

Except for patch 10

Reviewed-by: Jerome Glisse <jglisse at redhat.com>