44 static int gem_alloc_pages_array(struct xen_gem_object *xen_obj,  in gem_alloc_pages_array()  argument
47 	xen_obj->num_pages = DIV_ROUND_UP(buf_size, PAGE_SIZE);  in gem_alloc_pages_array()
48 	xen_obj->pages = kvmalloc_array(xen_obj->num_pages,  in gem_alloc_pages_array()
50 	return !xen_obj->pages ? -ENOMEM : 0;  in gem_alloc_pages_array()
53 static void gem_free_pages_array(struct xen_gem_object *xen_obj)  in gem_free_pages_array()  argument
55 	kvfree(xen_obj->pages);  in gem_free_pages_array()
56 	xen_obj->pages = NULL;  in gem_free_pages_array()
62 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_object_mmap()  local
92 	ret = vm_map_pages(vma, xen_obj->pages, xen_obj->num_pages);  in xen_drm_front_gem_object_mmap()
116 	struct xen_gem_object *xen_obj;  in gem_create_obj()  local
119 	xen_obj = kzalloc(sizeof(*xen_obj), GFP_KERNEL);  in gem_create_obj()
120 	if (!xen_obj)  in gem_create_obj()
123 	xen_obj->base.funcs = &xen_drm_front_gem_object_funcs;  in gem_create_obj()
125 	ret = drm_gem_object_init(dev, &xen_obj->base, size);  in gem_create_obj()
127 		kfree(xen_obj);  in gem_create_obj()
131 	return xen_obj;  in gem_create_obj()
137 	struct xen_gem_object *xen_obj;  in gem_create()  local
141 	xen_obj = gem_create_obj(dev, size);  in gem_create()
142 	if (IS_ERR(xen_obj))  in gem_create()
143 		return xen_obj;  in gem_create()
150 		ret = gem_alloc_pages_array(xen_obj, size);  in gem_create()
158 		ret = xen_alloc_unpopulated_pages(xen_obj->num_pages,  in gem_create()
159 					          xen_obj->pages);  in gem_create()
162 				  xen_obj->num_pages, ret);  in gem_create()
163 			gem_free_pages_array(xen_obj);  in gem_create()
167 		xen_obj->be_alloc = true;  in gem_create()
168 		return xen_obj;  in gem_create()
174 	xen_obj->num_pages = DIV_ROUND_UP(size, PAGE_SIZE);  in gem_create()
175 	xen_obj->pages = drm_gem_get_pages(&xen_obj->base);  in gem_create()
176 	if (IS_ERR(xen_obj->pages)) {  in gem_create()
177 		ret = PTR_ERR(xen_obj->pages);  in gem_create()
178 		xen_obj->pages = NULL;  in gem_create()
182 	return xen_obj;  in gem_create()
192 	struct xen_gem_object *xen_obj;  in xen_drm_front_gem_create()  local
194 	xen_obj = gem_create(dev, size);  in xen_drm_front_gem_create()
195 	if (IS_ERR(xen_obj))  in xen_drm_front_gem_create()
196 		return ERR_CAST(xen_obj);  in xen_drm_front_gem_create()
198 	return &xen_obj->base;  in xen_drm_front_gem_create()
203 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_free_object_unlocked()  local
205 	if (xen_obj->base.import_attach) {  in xen_drm_front_gem_free_object_unlocked()
206 		drm_prime_gem_destroy(&xen_obj->base, xen_obj->sgt_imported);  in xen_drm_front_gem_free_object_unlocked()
207 		gem_free_pages_array(xen_obj);  in xen_drm_front_gem_free_object_unlocked()
209 		if (xen_obj->pages) {  in xen_drm_front_gem_free_object_unlocked()
210 			if (xen_obj->be_alloc) {  in xen_drm_front_gem_free_object_unlocked()
211 				xen_free_unpopulated_pages(xen_obj->num_pages,  in xen_drm_front_gem_free_object_unlocked()
212 							   xen_obj->pages);  in xen_drm_front_gem_free_object_unlocked()
213 				gem_free_pages_array(xen_obj);  in xen_drm_front_gem_free_object_unlocked()
215 				drm_gem_put_pages(&xen_obj->base,  in xen_drm_front_gem_free_object_unlocked()
216 						  xen_obj->pages, true, false);  in xen_drm_front_gem_free_object_unlocked()
221 	kfree(xen_obj);  in xen_drm_front_gem_free_object_unlocked()
226 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_get_pages()  local
228 	return xen_obj->pages;  in xen_drm_front_gem_get_pages()
233 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_get_sg_table()  local
235 	if (!xen_obj->pages)  in xen_drm_front_gem_get_sg_table()
239 				     xen_obj->pages, xen_obj->num_pages);  in xen_drm_front_gem_get_sg_table()
248 	struct xen_gem_object *xen_obj;  in xen_drm_front_gem_import_sg_table()  local
253 	xen_obj = gem_create_obj(dev, size);  in xen_drm_front_gem_import_sg_table()
254 	if (IS_ERR(xen_obj))  in xen_drm_front_gem_import_sg_table()
255 		return ERR_CAST(xen_obj);  in xen_drm_front_gem_import_sg_table()
257 	ret = gem_alloc_pages_array(xen_obj, size);  in xen_drm_front_gem_import_sg_table()
261 	xen_obj->sgt_imported = sgt;  in xen_drm_front_gem_import_sg_table()
263 	ret = drm_prime_sg_to_page_array(sgt, xen_obj->pages,  in xen_drm_front_gem_import_sg_table()
264 					 xen_obj->num_pages);  in xen_drm_front_gem_import_sg_table()
269 					xen_drm_front_dbuf_to_cookie(&xen_obj->base),  in xen_drm_front_gem_import_sg_table()
271 					xen_obj->pages);  in xen_drm_front_gem_import_sg_table()
278 	return &xen_obj->base;  in xen_drm_front_gem_import_sg_table()
284 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_prime_vmap()  local
287 	if (!xen_obj->pages)  in xen_drm_front_gem_prime_vmap()
291 	vaddr = vmap(xen_obj->pages, xen_obj->num_pages,  in xen_drm_front_gem_prime_vmap()