drm/i915: Compare user's 64b GTT offset even on 32b
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 25 Oct 2018 09:18:23 +0000 (10:18 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 26 Oct 2018 08:20:05 +0000 (09:20 +0100)
commit6fc4e48f9ed46e9adff236a0c350074aafa3b7fa
tree89cfece8edf14b42a65d6ba4163132e367da02b4
parent9125963a9494253fa5a29cc1b4169885d2be7042
drm/i915: Compare user's 64b GTT offset even on 32b

Beware mixing unsigned long constants and 64b values, as on 32b the
constant will be zero extended and discard the high 32b when used as
a mask!

Reported-by: Sergii Romantsov <sergii.romantsov@globallogic.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108282
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181025091823.20571-2-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/gvt/gtt.h
drivers/gpu/drm/i915/i915_gem_execbuffer.c
drivers/gpu/drm/i915/i915_gem_gtt.h