On 10/21/2011 06:48 PM, Dave Airlie wrote:
Why do we have CONTROL_ALLOW on all modesetting ioctls?, also this code in drm_crtc.c seems odd:
The plan was to allow a master daemon to create seats and compute nodes, on reflection it probably didn't need *all* the modesetting ioctls, just the GetResources one.
So gdm or some equivalent would keep control over the control node, and could be used to establish seats via render nodes. Render nodes could have various crtc/outputs assigned to them. A GPGPU render node would have 0 output pieces attached.
if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { ...
Isn't that equivalent to
if (file_priv->minor->type == DRM_MINOR_CONTROL) { ?
Yeah most likely just over thinking something. should be the same.
I had a tree on k.org with this stuff more fleshed out, I've just pushed it out here: http://cgit.freedesktop.org/~airlied/linux/log/?h=drm-render-nodes
OK. Thanks. Got a better understanding what it's all about now.
/Thomas
Dave.