Am 13.05.22 um 11:21 schrieb Matthew Auld:
On Mon, 9 May 2022 at 14:09, Christian König
<ckoenig.leichtzumerken@xxxxxxxxx> wrote:
Hi everyone,
re-sending this because Daniel was requesting a background why this is
useful.
When TTM creates a buffer this object initially should not have any
backing store and there no resource object associated with it. The same
can happen when a driver requests that the backing store of an object is
destroyed without allocating a new one.
This is really useful during initial buffer creation as well as temporary
buffers and page tables which content doesn't need to be preserved when
they are evicted.
Currently TTM allocates dummy system resources for that because drivers
couldn't handle a NULL pointer there. Audit the drivers and then clean
up TTM to stop making those dummy allocations.
Please review and comment,
Any chance we can throw this at intel-ci? Series seems to apply to drm-tip.
It should be enough to CC intel-gfx@xxxxxxxxxxxxxxxxxxxxx when sending
the patch set out, right?
Christian.
Christian.
