On Mon, Oct 24, 2022 at 01:55:56PM +0200, Thomas Zimmermann wrote: > Hi > > Am 22.10.22 um 23:46 schrieb Oded Gabbay: > > In the last couple of months we had a discussion [1] about creating a new > > subsystem for compute accelerator devices in the kernel. > > > > After an analysis that was done by DRM maintainers and myself, and following > > a BOF session at the Linux Plumbers conference a few weeks ago [2], we > > decided to create a new subsystem that will use the DRM subsystem's code and > > functionality. i.e. the accel core code will be part of the DRM subsystem. > > > > This will allow us to leverage the extensive DRM code-base and > > collaborate with DRM developers that have experience with this type of > > devices. In addition, new features that will be added for the accelerator > > drivers can be of use to GPU drivers as well (e.g. RAS). > > > > As agreed in the BOF session, the accelerator devices will be exposed to > > user-space with a new, dedicated device char files and a dedicated major > > number (261), to clearly separate them from graphic cards and the graphic > > user-space s/w stack. Furthermore, the drivers will be located in a separate > > place in the kernel tree (drivers/accel/). > > > > This series of patches is the first step in this direction as it adds the > > necessary infrastructure for accelerator devices to DRM. The new devices will > > be exposed with the following convention: > > > > device char files - /dev/accel/accel* > > sysfs - /sys/class/accel/accel*/ > > debugfs - /sys/kernel/debug/accel/accel*/ > > I know I'm really late to this discussion, but wouldn't 'compute' be a > better name? > > (I agree that skynet would also be nice :) See the summary of the meeting we all held at the Plumbers conference about this. "accel" was the "least hated" of all of the options, so I think we'll stick with that for now. thanks, greg k-h
