[PATCH 01/13] drm/amdgpu: introduce and honour DRM_FORCE_AUTH workaround

Daniel Vetter daniel at ffwll.ch
Mon Jun 24 09:48:35 UTC 2019

On Mon, Jun 24, 2019 at 11:37 AM Michel Dänzer <michel at daenzer.net> wrote:
> On 2019-06-21 5:52 p.m., Michel Dänzer wrote:
> >> That was the entire point of kms, and it succeed really well. That's
> >> why I don't think amdgpu doing their own flavour pick is going to help
> >> anyone here,
> > Other drivers are welcome to emulate amdgpu's design making the above
> > possible. :)
> Seriously though, I don't think any changes outside of libdrm/Mesa
> should be needed with other drivers either. Fundamentally there's
> nothing magic about it, just sharing BOs via PRIME between the render
> node file description and that passed in via the EGL/GBM/... API.

The libdrm/mesa design isn't the hard part, we have that even as a
helper for etnaviv and all those drivers. Being inconsistent here is a
think more a nuisance for integrators, who might want to sandbox gpu
clients real hard and really want to know what access rights they need
to give out.

But then we have much, much bigger fish to fry from a cross-driver
consistency pov, so *shrug*. Just feels somewhat silly we can't even
get agreement or some kind of consistent plan on something fairly
simple like this.
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch

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