psb_gem_create
backing = psb_gem_create(dev, size, "fb", true, PAGE_SIZE);
pobj = psb_gem_create(dev, size, "gem", false, PAGE_SIZE);
psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen, u32 align);
cursor_pobj = psb_gem_create(dev, 4 * PAGE_SIZE, "cursor", true, PAGE_SIZE);