VM_CLASS_GGTT 3209 drivers/gpu/drm/i915/i915_gem_gtt.c i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT); VM_CLASS_GGTT 119 drivers/gpu/drm/i915/selftests/mock_gtt.c i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);