drm/i915: Compare user's 64b GTT offset even on 32b

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commit 0856032874 upstream.

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
(cherry picked from commit 6fc4e48f9e)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Chris Wilson 2018-10-25 10:18:23 +01:00 • committed by Greg Kroah-Hartman

parent a46a7350b1

commit b4aa9db0b2

3 changed files with 3 additions and 2 deletions

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1

drivers/gpu/drm/i915/gvt/gtt.h

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2

drivers/gpu/drm/i915/i915_gem_execbuffer.c

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2

drivers/gpu/drm/i915/i915_gem_gtt.h

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