> > Another one: What's the plan with extending this to panfrost? Or are the > > architectures for command submission totally different, and we'll need > > separate kernel drivers for utgard/midgard/bifrost? > + Alyssa & Rob > There is a gitlab issue about sharing kernel driver: > https://gitlab.freedesktop.org/panfrost/linux/issues/1 > > But seems utgard (discrete shader arch) really differs with midgard/bifrost > (unified shader arch), so that ARM also have different official kernel drivers. We're operating off that Utgard and Midgard/Bifrost are two completely separate architectures. They share a name, but not much else in practice. Separate shaders vs unified shaders is one distinction; command streams vs state descriptors is another huge one (as far as userspace is concerned); etc. As Qiang pointed out, Arm has two (kernel) drivers, one for Utgard, one for Midgard. Beyond a few isolated routines (e.g. texture tiling), IMO sharing between lima and panfrost makes about as much sense as sharing between lima and etnaviv/vc4/freedreno. Yeah, there are similarities, but that's what common code is for, not for forcing code cohabitation. -Alyssa _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
