45 static int gem_alloc_pages_array(struct xen_gem_object *xen_obj,  in gem_alloc_pages_array()  argument
48 	xen_obj->num_pages = DIV_ROUND_UP(buf_size, PAGE_SIZE);  in gem_alloc_pages_array()
49 	xen_obj->pages = kvmalloc_array(xen_obj->num_pages,  in gem_alloc_pages_array()
51 	return !xen_obj->pages ? -ENOMEM : 0;  in gem_alloc_pages_array()
54 static void gem_free_pages_array(struct xen_gem_object *xen_obj)  in gem_free_pages_array()  argument
56 	kvfree(xen_obj->pages);  in gem_free_pages_array()
57 	xen_obj->pages = NULL;  in gem_free_pages_array()
63 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_object_mmap()  local
94 	ret = vm_map_pages(vma, xen_obj->pages, xen_obj->num_pages);  in xen_drm_front_gem_object_mmap()
118 	struct xen_gem_object *xen_obj;  in gem_create_obj()  local
121 	xen_obj = kzalloc(sizeof(*xen_obj), GFP_KERNEL);  in gem_create_obj()
122 	if (!xen_obj)  in gem_create_obj()
125 	xen_obj->base.funcs = &xen_drm_front_gem_object_funcs;  in gem_create_obj()
127 	ret = drm_gem_object_init(dev, &xen_obj->base, size);  in gem_create_obj()
129 		kfree(xen_obj);  in gem_create_obj()
133 	return xen_obj;  in gem_create_obj()
139 	struct xen_gem_object *xen_obj;  in gem_create()  local
143 	xen_obj = gem_create_obj(dev, size);  in gem_create()
144 	if (IS_ERR(xen_obj))  in gem_create()
145 		return xen_obj;  in gem_create()
152 		ret = gem_alloc_pages_array(xen_obj, size);  in gem_create()
160 		ret = xen_alloc_unpopulated_pages(xen_obj->num_pages,  in gem_create()
161 					          xen_obj->pages);  in gem_create()
164 				  xen_obj->num_pages, ret);  in gem_create()
165 			gem_free_pages_array(xen_obj);  in gem_create()
169 		xen_obj->be_alloc = true;  in gem_create()
170 		return xen_obj;  in gem_create()
176 	xen_obj->num_pages = DIV_ROUND_UP(size, PAGE_SIZE);  in gem_create()
177 	xen_obj->pages = drm_gem_get_pages(&xen_obj->base);  in gem_create()
178 	if (IS_ERR(xen_obj->pages)) {  in gem_create()
179 		ret = PTR_ERR(xen_obj->pages);  in gem_create()
180 		xen_obj->pages = NULL;  in gem_create()
184 	return xen_obj;  in gem_create()
194 	struct xen_gem_object *xen_obj;  in xen_drm_front_gem_create()  local
196 	xen_obj = gem_create(dev, size);  in xen_drm_front_gem_create()
197 	if (IS_ERR(xen_obj))  in xen_drm_front_gem_create()
198 		return ERR_CAST(xen_obj);  in xen_drm_front_gem_create()
200 	return &xen_obj->base;  in xen_drm_front_gem_create()
205 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_free_object_unlocked()  local
207 	if (xen_obj->base.import_attach) {  in xen_drm_front_gem_free_object_unlocked()
208 		drm_prime_gem_destroy(&xen_obj->base, xen_obj->sgt_imported);  in xen_drm_front_gem_free_object_unlocked()
209 		gem_free_pages_array(xen_obj);  in xen_drm_front_gem_free_object_unlocked()
211 		if (xen_obj->pages) {  in xen_drm_front_gem_free_object_unlocked()
212 			if (xen_obj->be_alloc) {  in xen_drm_front_gem_free_object_unlocked()
213 				xen_free_unpopulated_pages(xen_obj->num_pages,  in xen_drm_front_gem_free_object_unlocked()
214 							   xen_obj->pages);  in xen_drm_front_gem_free_object_unlocked()
215 				gem_free_pages_array(xen_obj);  in xen_drm_front_gem_free_object_unlocked()
217 				drm_gem_put_pages(&xen_obj->base,  in xen_drm_front_gem_free_object_unlocked()
218 						  xen_obj->pages, true, false);  in xen_drm_front_gem_free_object_unlocked()
223 	kfree(xen_obj);  in xen_drm_front_gem_free_object_unlocked()
228 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_get_pages()  local
230 	return xen_obj->pages;  in xen_drm_front_gem_get_pages()
235 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_get_sg_table()  local
237 	if (!xen_obj->pages)  in xen_drm_front_gem_get_sg_table()
241 				     xen_obj->pages, xen_obj->num_pages);  in xen_drm_front_gem_get_sg_table()
250 	struct xen_gem_object *xen_obj;  in xen_drm_front_gem_import_sg_table()  local
255 	xen_obj = gem_create_obj(dev, size);  in xen_drm_front_gem_import_sg_table()
256 	if (IS_ERR(xen_obj))  in xen_drm_front_gem_import_sg_table()
257 		return ERR_CAST(xen_obj);  in xen_drm_front_gem_import_sg_table()
259 	ret = gem_alloc_pages_array(xen_obj, size);  in xen_drm_front_gem_import_sg_table()
263 	xen_obj->sgt_imported = sgt;  in xen_drm_front_gem_import_sg_table()
265 	ret = drm_prime_sg_to_page_array(sgt, xen_obj->pages,  in xen_drm_front_gem_import_sg_table()
266 					 xen_obj->num_pages);  in xen_drm_front_gem_import_sg_table()
271 					xen_drm_front_dbuf_to_cookie(&xen_obj->base),  in xen_drm_front_gem_import_sg_table()
273 					xen_obj->pages);  in xen_drm_front_gem_import_sg_table()
280 	return &xen_obj->base;  in xen_drm_front_gem_import_sg_table()
286 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);  in xen_drm_front_gem_prime_vmap()  local
289 	if (!xen_obj->pages)  in xen_drm_front_gem_prime_vmap()
293 	vaddr = vmap(xen_obj->pages, xen_obj->num_pages,  in xen_drm_front_gem_prime_vmap()