[Intel-gfx] [PATCH v3] intel: New libdrm interface to create unbound wc user mappings for objects

[Chris Wilson]

On Tue, Mar 03, 2015 at 05:11:12PM +0000, Damien Lespiau wrote:
> On Tue, Mar 03, 2015 at 05:05:52PM +0000, Chris Wilson wrote:
> > On Tue, Mar 03, 2015 at 02:20:03PM +0000, Damien Lespiau wrote:
> > > On Tue, Dec 09, 2014 at 04:53:01PM +0000, Damien Lespiau wrote:
> > > > Right that leaves the last point in my answer to v3. With that addressed
> > > > this is:
> > > > 
> > > > Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>
> > > 
> > > Hum it seems that we've upstreamed the kernel part without the libdrm
> > > API. Is it time to fix this? Akash, Chris, any objection if I push this
> > > v3? is there a more up-to-date patch that was exercised by some driver?
> > 
> > There's no actual user of the proposed libdrm API afaik. It should make
> > a nice drop-in improvement for mesa, but we may need to better expose
> > bufmgr_gem->has_ext_mmap (I don't think mesa needs to care about failure
> > with old CPUs if it only focuses on mesa/i965).
> 
> We've cleared that with Dave last time and if there's the kernel API in
> place (because the DDX uses it) then we can upstream the libdrm one, for
> the sake of completeness.

I meant in terms of whether the API is sufficient for mesa.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre