[PATCH] drm/radeon: fence virtual address and free it once idle [3.5] v2

[Jerome Glisse]

On Fri, Aug 3, 2012 at 4:16 PM, Greg KH <gregkh at linuxfoundation.org> wrote:
> On Fri, Aug 03, 2012 at 03:57:19PM -0400, j.glisse at gmail.com wrote:
>> From: Jerome Glisse <jglisse at redhat.com>
>>
>> Virtual address need to be fenced to know when we can safely remove it.
>> This patch also properly clear the pagetable. Previously it was
>> serouisly broken.
>>
>> v2: For to update pagetable when unbinding bo (don't bailout if
>>     bo_va->valid is true).
>>
>> This version is for stable 3.5 only.
>
> Why?

Because 3.4 needs again a different patch and 3.6 needs a different
patch. Code around this patch changed btw 3.4-3.5 and changed again
btw 3.5-3.6 and in non trivial way.

Cheers,
Jerome