Quoting Chris Wilson (2018-06-10 22:43:09) > We special case the position of the batch within the GTT to prevent > negative self-relocation deltas from underflowing. However, that > restriction is being applied after a trial pin of the batch in its > current position. Thus we are not rejecting an invalid location if the > batch has been before, leading to an assertion if we happen to need to "has been used/bound/pinned/whatever"? > rearrange the entire payload. In the worst case, this may cause a GPU > hang on gen7 or perhaps missing state. > > References: https://bugs.freedesktop.org/show_bug.cgi?id=105720 > Fixes: 2889caa92321 ("drm/i915: Eliminate lots of iterations over the execobjects array") > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Cc: Martin Peres <martin.peres@xxxxxxxxxxxxxxx> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Regards, Joonas _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
