well, bringing compute to the other gallium drivers in general, beyond radeon, is probably an entire project on it's own.. but a very worthwhile project (IMHO).. since opencl (beyond embedded profile) requires double support, that probably also would expose the need for fp64 lowering in more drivers.
freedreno probably needs more work on the compiler side for anything other than really simple cl kernels.. but we'll get there eventually. In the mean time, nouveau is a pretty good candidate for compute support (since it already has a much more advanced compiler infrastructure) BR, -R On Thu, Mar 26, 2015 at 8:54 PM, Aditya Avinash <adityaavina...@gmail.com> wrote: > Are you suggesting bringing OpenCL support for Adreno gpus and using > softfloat? > > On Thu, Mar 26, 2015 at 8:50 PM, Rob Clark <robdcl...@gmail.com> wrote: >> >> On Thu, Mar 26, 2015 at 3:10 PM, Ilia Mirkin <imir...@alum.mit.edu> wrote: >> > On Thu, Mar 26, 2015 at 3:02 PM, Jason Ekstrand <ja...@jlekstrand.net> >> > wrote: >> >> On Thu, Mar 26, 2015 at 12:00 PM, Aditya Avinash >> >> <adityaavina...@gmail.com> wrote: >> >>> I mean, implementing fp64 on single precision systems. >> >> >> >> Ok, That makes more sense! Having lowering passes for various FP64 >> >> operations would be great. >> > >> > We should make sure that there are customers of such work. It only >> > makes sense to do this when everything else but FP64 are supported for >> > GL 4.0 (including tess). r600 (eg/ni) is an obvious customer, although >> > that may be easier to do in sb (I believe GlennK has been looking at >> > it, not sure how far he's gotten). Other than that... not sure. Could >> > be that Adreno A420 can do tess && has no native fp64 support, still >> > need to figure that out (hasn't been RE'd yet). >> >> fwiw, fp64 lowering is almost certainly useful for a3xx when we get to >> the point of doing compute.. >> >> (on that topic, TGSI or NIR support for clover would be kinda awesome >> to get compute going on some drivers other than radeon.. probably TGSI >> would be more immediately useful for more drivers, but not sure how >> much would need to be added to TGSI, and NIR seems to be more >> future-proof..) >> >> BR, >> -R >> >> >> > >> > -ilia >> > _______________________________________________ >> > mesa-dev mailing list >> > mesa-dev@lists.freedesktop.org >> > http://lists.freedesktop.org/mailman/listinfo/mesa-dev >> _______________________________________________ >> mesa-dev mailing list >> mesa-dev@lists.freedesktop.org >> http://lists.freedesktop.org/mailman/listinfo/mesa-dev > > > > > -- > Regards, > Aditya Atluri, > USA. > _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
