fae82e59d2
Even after adding individual page support for GTT mmaping, we can still fail to find any space within the mappable region, and drm_mm_insert_node() will then report ENOSPC. We have to then handle this error by using the shmem access to the pages. Fixes:b50a53715f("drm/i915: Support for pread/pwrite ... objects") Testcase: igt/gem_concurrent_blit Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com Link: http://patchwork.freedesktop.org/patch/msgid/1468690956-23480-1-git-send-email-chris@chris-wilson.co.uk Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (cherry picked from commitd1054ee492) Signed-off-by: Jani Nikula <jani.nikula@intel.com>