On Wed, Mar 05, 2014 at 07:24:37AM -0800, Ben Widawsky wrote: > On Wed, Mar 05, 2014 at 11:13:12AM +0200, Jani Nikula wrote: > > On Wed, 05 Mar 2014, Ben Widawsky <benjamin.widaw...@intel.com> wrote: > > > The PDE needs to wrap after writing all the PTEs. Quite a small/silly > > > bug to find in the massive change. It was introduced: > > > commit 307dc4f99f6d3a74a78b0e776838f35b2004f14d > > > Author: Ben Widawsky <benjamin.widaw...@intel.com> > > > Date: Thu Feb 20 11:51:21 2014 -0800 > > > > > > drm/i915/bdw: Reorganize PT allocations > > > > As noted in the bug, the commit merged to dinq is correct, and the > > commit referenced above apparently only lives in some temporary branch. > > > > BR, > > Jani. > > > > My eyes are playing tricks on me. Sorry for the noise. >
It's not my eyes. It's something else. WTF is going on? bwidawsk@bolo_yeung ~/intel-gfx/drm-intel (drm-intel-nightly)$ tsocks git fetch upstream bwidawsk@bolo_yeung ~/intel-gfx/drm-intel (drm-intel-nightly)$ git reset --hard upstream/drm-intel-nightly HEAD is now at 97d10a0 drm-intel-nightly: 2014y-03m-05d-20h-31m-21s integration manifest bwidawsk@bolo_yeung ~/intel-gfx/drm-intel (drm-intel-nightly)$ sed -n '338p' drivers/gpu/drm/i915/i915_gem_gtt.c if (pde + 1 == GEN8_PDES_PER_PAGE) { > > > > > > > > I can't actually test this patch at the moment because my Broadwell is > > > unresponsive. This should be squashed if possible. > > > > > > Cc: Imre Deak <imre.d...@intel.com> > > > Reported-by: Timo Aaltonen <tjaal...@ubuntu.com> > > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75763 > > > Signed-off-by: Ben Widawsky <b...@bwidawsk.net> > > > --- > > > drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c > > > b/drivers/gpu/drm/i915/i915_gem_gtt.c > > > index 5462037..2bde703 100644 > > > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > > > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > > > @@ -335,7 +335,7 @@ static void gen8_ppgtt_insert_entries(struct > > > i915_address_space *vm, > > > if (++pte == GEN8_PTES_PER_PAGE) { > > > kunmap_atomic(pt_vaddr); > > > pt_vaddr = NULL; > > > - if (pde + 1 == GEN8_PDES_PER_PAGE) { > > > + if (++pde == GEN8_PDES_PER_PAGE) { > > > pdpe++; > > > pde = 0; > > > } > > > -- > > > 1.9.0 > > > > > > _______________________________________________ > > > Intel-gfx mailing list > > > Intel-gfx@lists.freedesktop.org > > > http://lists.freedesktop.org/mailman/listinfo/intel-gfx > > > > -- > > Jani Nikula, Intel Open Source Technology Center > > -- > Ben Widawsky, Intel Open Source Technology Center -- Ben Widawsky, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx