On 11 December 2017 at 22:49, Gert Wollny <gw.foss...@gmail.com> wrote: > Am Freitag, den 08.12.2017, 16:30 +1000 schrieb Dave Airlie: >> [snip] >> >> So I haven't commited these yet, because I wanted to see if I could >> get sb to work. > Well, it was very much work in progress, I didn't expect it to be > committed as is anyway. > >> >> https://cgit.freedesktop.org/~airlied/mesa/log/?h=r600-sb-lds-wip >> >> is my non functional attempt, so far, biut it gpu hangs on the nop >> shader. > > I've played aound it a bit and added some hacks to make it not hang, > i.e. sb scheduls calls into any slot, but LDS read/write should go only > into SLOT_X, and not splitting up the fetch seemed to be important > (patch attached). > > > However, gcm moves around the LSD_OQ* loads changing the order without > changing the order of the according LDS_READ_RET calls. At least for > this the nop shader still fails. > > I tried to persuade the optimizer to not reorder these move > instructions by adding a "use" to the dst-value of a node that reads > from a LDS_OQ to the next node that reads from the same queue, but to > no avail. I guess I didn't figure out how to count these extra uses > properly when the instructuions are scheduled.
I thought I'd done this already, I must dig a bit more. I've pushed mosre stuff to the branch, nop still doesn't work. I've included your patche in one of the squashes, I think we should be pretty close. Dave. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
