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drm/i915/gtt: Per ppgtt scratch page
Previously we have pointed the page where the individual ppgtt scratch structures refer to, to be the instance which GGTT setup have allocated. So it has been shared. To achieve full isolation between ppgtts also in this regard, allocate per ppgtt scratch page. Cc: Michel Thierry <michel.thierry@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Michel Thierry <michel.thierry@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Mika Kuoppala
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Daniel Vetter
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Jul 3, 2015
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