Am 29.05.21 um 17:23 schrieb Thomas Hellström (Intel):
On 5/28/21 9:30 PM, Zack Rusin wrote:
On 5/22/21 3:13 AM, Christian König wrote:
Hi Zack,
IIRC that was for the VMW_PL_GMR type, wasn't it?
As far as I have seen that backend was just giving out unique
numbers and it looked questionable that we allocated pages for that.
E.g. when you set that flag then for each allocation we also
allocate a TTM tt structure and a corresponding page.
Got ya. Yea, it's a little messy. I think it's correct. Those unique
numbers are just identifiers for the bo's but the actual memory for
them is regular system memory (e.g. we just tell our virtual
hardware, here's some guest system pages and here's a unique id that
we'll be using the refer to them).
Yes, allocating pages for that memory type is correct. The main
difference to other hardware here is that on other hardware those are
bound to gpu using a range in a translation table. With vmwgfx they
are bound using a slot with a unique integer..
Ok that makes more sense then. In this case just drop the TODO.
Christian.
/Thomas
