Hi 2012/10/12 Daniel Vetter <daniel at ffwll.ch>: > On Fri, Oct 12, 2012 at 03:54:50AM -0400, Dave Airlie wrote: >> On Thu, Oct 11, 2012 at 7:54 PM, Jesse Barnes <jbarnes at virtuousgeek.org> wrote: >> > On Thu, 11 Oct 2012 20:29:47 -0300 >> > Paulo Zanoni <przanoni at gmail.com> wrote: >> > >> >> Hi >> >> >> >> 2012/10/11 Jesse Barnes <jbarnes at virtuousgeek.org>: >> >> > I've only lightly tested this so far, but the corruption seems to be >> >> > gone if I write the GFX_FLSH_CNTL reg after binding an object. This >> >> > register should control the TLB for the system agent, which is what CPU >> >> > mapped objects will go through. >> >> > >> >> > Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org> >> >> >> >> I'm not sure if this is the patch you asked me to test on IRC, but, >> >> well this is the patch I tested :) >> >> >> >> I tested it on HSW on top of dinq + some other patches. Booted the >> >> machine, ran mostly xfterm4 under Xfce, but I also ran firefox, >> >> gnome-shell and restarted X a few times. No GPU hangs so far. I'm >> >> testing this for about 3-4 hours. >> >> >> >> I do have to say that I could not find this register on the HSW >> >> documentation, but I also did no see any "Unclaimed write" messages >> >> containing the 101008 address... I'm a little confused. >> >> >> >> And the interesting thing: intel_gpu_tools is useless now. I keep >> >> getting "Couldn't map MMIO region: Resource temporarily unavailable". >> >> Do you see this too? >> > >> > No I haven't seen that, I ran some tests today with the tip of the tree >> > too... Dunno why the resource files would return EBUSY? Maybe because >> > a driver is bound? >> >> More likely because of some WB/WC/UC collision. We don't like aliases. > > Yep, you need to upgrade, latest i-g-t should handle the wc/uc split > correctly. The important testcase is gem_gtt_cpu_tlb, if that one works > this patch is good. You are right, thanks. A git pull on i-g-t makes everything work again :) And gem_gtt_cpu_tlb also passes. Tested-by: Paulo Zanoni <paulo.r.zanoni at intel.com> > -Daniel > -- > Daniel Vetter > Software Engineer, Intel Corporation > +41 (0) 79 365 57 48 - http://blog.ffwll.ch > _______________________________________________ > Intel-gfx mailing list > Intel-gfx at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Paulo Zanoni
