forked from Minki/linux
drm/i915: Handle ENOSPC after failing to insert a mappable node
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>
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@ -1306,7 +1306,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
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* textures). Fallback to the shmem path in that case. */
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}
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if (ret == -EFAULT) {
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if (ret == -EFAULT || ret == -ENOSPC) {
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if (obj->phys_handle)
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ret = i915_gem_phys_pwrite(obj, args, file);
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else if (i915_gem_object_has_struct_page(obj))
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