On Tue, Sep 11, 2012 at 2:29 PM, Marek Olšák <mar...@gmail.com> wrote: > On Tue, Sep 11, 2012 at 7:41 PM, Jerome Glisse <j.gli...@gmail.com> wrote: >> On Tue, Sep 11, 2012 at 1:10 PM, Marek Olšák <mar...@gmail.com> wrote: >>> Please provide information about the GPU and the test which locks up. I'd >>> like to reproduce it. Also please explain what's the cause of the >>> lockup if you know it (which registers are not emitted in the correct >>> order and how it can fixed). >>> >>> Marek >>> >> >> For instance >> http://people.freedesktop.org/~glisse/registerposition/lockup-longprim.sh >> >> will lockup probably any r6xx/r7xx (definitely rv670 & rv770) >> >> I know that the whole vgt register order is picky and that most of >> them need to be emitted before ta_cntl_aux and before cb/db. But the >> ordering relative to pa is kind of weird and moving when looking at >> fglrx. > > I tested RS880, which is very similar to RV670, and it didn't hang. I > can test RV670 later and if there's any issue, I'll fix it. I'd like > this patch to be fixed instead of dropped, that's why I'm asking and I > still haven't got a definitive answer how to change the patch, so that > it can be pushed. Besides that... > > Has it ever occured to you that the register ordering is changing in > fglrx, because the ordering doesn't matter at all, just like Alex > said, and the closed driver devs wrote it that way because they didn't > care about the ordering either?
fglrx definitly emit register according to certain grouping. Thing is there is a bunch of register that are emitted in 2/3 or 4 different group at most of what i have seen. Otherwise all other register are _always_ emitted as part of same group with the whole group being emitted. The issue i have is understanding those register that are emitted in few different ways and how fglrx choose btw those different one. > > I think the lockups you are seeing on r600-r700 are actually caused by > something entirely different and it confuses you. See this thread from > the comment #9 onwards: > https://bugs.freedesktop.org/show_bug.cgi?id=50655#c9 > > Marek _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
