11c248b7dSInki Dae /* exynos_drm_gem.c 21c248b7dSInki Dae * 31c248b7dSInki Dae * Copyright (c) 2011 Samsung Electronics Co., Ltd. 41c248b7dSInki Dae * Author: Inki Dae <inki.dae@samsung.com> 51c248b7dSInki Dae * 61c248b7dSInki Dae * Permission is hereby granted, free of charge, to any person obtaining a 71c248b7dSInki Dae * copy of this software and associated documentation files (the "Software"), 81c248b7dSInki Dae * to deal in the Software without restriction, including without limitation 91c248b7dSInki Dae * the rights to use, copy, modify, merge, publish, distribute, sublicense, 101c248b7dSInki Dae * and/or sell copies of the Software, and to permit persons to whom the 111c248b7dSInki Dae * Software is furnished to do so, subject to the following conditions: 121c248b7dSInki Dae * 131c248b7dSInki Dae * The above copyright notice and this permission notice (including the next 141c248b7dSInki Dae * paragraph) shall be included in all copies or substantial portions of the 151c248b7dSInki Dae * Software. 161c248b7dSInki Dae * 171c248b7dSInki Dae * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 181c248b7dSInki Dae * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 191c248b7dSInki Dae * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 201c248b7dSInki Dae * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 211c248b7dSInki Dae * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 221c248b7dSInki Dae * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 231c248b7dSInki Dae * OTHER DEALINGS IN THE SOFTWARE. 241c248b7dSInki Dae */ 251c248b7dSInki Dae 26760285e7SDavid Howells #include <drm/drmP.h> 271c248b7dSInki Dae 282b35892eSInki Dae #include <linux/shmem_fs.h> 291c248b7dSInki Dae #include <drm/exynos_drm.h> 301c248b7dSInki Dae 311c248b7dSInki Dae #include "exynos_drm_drv.h" 321c248b7dSInki Dae #include "exynos_drm_gem.h" 331c248b7dSInki Dae #include "exynos_drm_buf.h" 341c248b7dSInki Dae 351c248b7dSInki Dae static unsigned int convert_to_vm_err_msg(int msg) 361c248b7dSInki Dae { 371c248b7dSInki Dae unsigned int out_msg; 381c248b7dSInki Dae 391c248b7dSInki Dae switch (msg) { 401c248b7dSInki Dae case 0: 411c248b7dSInki Dae case -ERESTARTSYS: 421c248b7dSInki Dae case -EINTR: 431c248b7dSInki Dae out_msg = VM_FAULT_NOPAGE; 441c248b7dSInki Dae break; 451c248b7dSInki Dae 461c248b7dSInki Dae case -ENOMEM: 471c248b7dSInki Dae out_msg = VM_FAULT_OOM; 481c248b7dSInki Dae break; 491c248b7dSInki Dae 501c248b7dSInki Dae default: 511c248b7dSInki Dae out_msg = VM_FAULT_SIGBUS; 521c248b7dSInki Dae break; 531c248b7dSInki Dae } 541c248b7dSInki Dae 551c248b7dSInki Dae return out_msg; 561c248b7dSInki Dae } 571c248b7dSInki Dae 58dcf9af82SInki Dae static int check_gem_flags(unsigned int flags) 592b35892eSInki Dae { 60dcf9af82SInki Dae if (flags & ~(EXYNOS_BO_MASK)) { 61dcf9af82SInki Dae DRM_ERROR("invalid flags.\n"); 62dcf9af82SInki Dae return -EINVAL; 63dcf9af82SInki Dae } 64dcf9af82SInki Dae 65dcf9af82SInki Dae return 0; 66dcf9af82SInki Dae } 67dcf9af82SInki Dae 68c01d73faSInki Dae static void update_vm_cache_attr(struct exynos_drm_gem_obj *obj, 69c01d73faSInki Dae struct vm_area_struct *vma) 70c01d73faSInki Dae { 71c01d73faSInki Dae DRM_DEBUG_KMS("flags = 0x%x\n", obj->flags); 72c01d73faSInki Dae 73c01d73faSInki Dae /* non-cachable as default. */ 74c01d73faSInki Dae if (obj->flags & EXYNOS_BO_CACHABLE) 75c01d73faSInki Dae vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 76c01d73faSInki Dae else if (obj->flags & EXYNOS_BO_WC) 77c01d73faSInki Dae vma->vm_page_prot = 78c01d73faSInki Dae pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 79c01d73faSInki Dae else 80c01d73faSInki Dae vma->vm_page_prot = 81c01d73faSInki Dae pgprot_noncached(vm_get_page_prot(vma->vm_flags)); 82c01d73faSInki Dae } 83c01d73faSInki Dae 84dcf9af82SInki Dae static unsigned long roundup_gem_size(unsigned long size, unsigned int flags) 85dcf9af82SInki Dae { 860519f9a1SInki Dae /* TODO */ 870519f9a1SInki Dae 88dcf9af82SInki Dae return roundup(size, PAGE_SIZE); 892b35892eSInki Dae } 902b35892eSInki Dae 910519f9a1SInki Dae static int exynos_drm_gem_map_buf(struct drm_gem_object *obj, 922b35892eSInki Dae struct vm_area_struct *vma, 932b35892eSInki Dae unsigned long f_vaddr, 942b35892eSInki Dae pgoff_t page_offset) 952b35892eSInki Dae { 962b35892eSInki Dae struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); 972b35892eSInki Dae struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer; 984ddc404bSRahul Sharma struct scatterlist *sgl; 992b35892eSInki Dae unsigned long pfn; 1004ddc404bSRahul Sharma int i; 1012b35892eSInki Dae 1022b35892eSInki Dae if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { 1034ddc404bSRahul Sharma if (!buf->sgt) 1044ddc404bSRahul Sharma return -EINTR; 1054ddc404bSRahul Sharma 1064ddc404bSRahul Sharma sgl = buf->sgt->sgl; 1074ddc404bSRahul Sharma for_each_sg(buf->sgt->sgl, sgl, buf->sgt->nents, i) { 1084ddc404bSRahul Sharma if (!sgl) { 1094ddc404bSRahul Sharma DRM_ERROR("invalid SG table\n"); 1104ddc404bSRahul Sharma return -EINTR; 1114ddc404bSRahul Sharma } 1124ddc404bSRahul Sharma if (page_offset < (sgl->length >> PAGE_SHIFT)) 1134ddc404bSRahul Sharma break; 1144ddc404bSRahul Sharma page_offset -= (sgl->length >> PAGE_SHIFT); 1154ddc404bSRahul Sharma } 1164ddc404bSRahul Sharma 1174ddc404bSRahul Sharma if (i >= buf->sgt->nents) { 1184ddc404bSRahul Sharma DRM_ERROR("invalid page offset\n"); 1194ddc404bSRahul Sharma return -EINVAL; 1204ddc404bSRahul Sharma } 1214ddc404bSRahul Sharma 1224ddc404bSRahul Sharma pfn = __phys_to_pfn(sg_phys(sgl)) + page_offset; 1234ddc404bSRahul Sharma } else { 1242b35892eSInki Dae if (!buf->pages) 1252b35892eSInki Dae return -EINTR; 1262b35892eSInki Dae 1274ddc404bSRahul Sharma pfn = page_to_pfn(buf->pages[0]) + page_offset; 1284ddc404bSRahul Sharma } 1292b35892eSInki Dae 1302b35892eSInki Dae return vm_insert_mixed(vma, f_vaddr, pfn); 1312b35892eSInki Dae } 1322b35892eSInki Dae 1332364839aSJoonyoung Shim static int exynos_drm_gem_handle_create(struct drm_gem_object *obj, 1342364839aSJoonyoung Shim struct drm_file *file_priv, 1352364839aSJoonyoung Shim unsigned int *handle) 1361c248b7dSInki Dae { 1371c248b7dSInki Dae int ret; 1381c248b7dSInki Dae 1391c248b7dSInki Dae /* 1401c248b7dSInki Dae * allocate a id of idr table where the obj is registered 1411c248b7dSInki Dae * and handle has the id what user can see. 1421c248b7dSInki Dae */ 1431c248b7dSInki Dae ret = drm_gem_handle_create(file_priv, obj, handle); 1441c248b7dSInki Dae if (ret) 1452364839aSJoonyoung Shim return ret; 1461c248b7dSInki Dae 1471c248b7dSInki Dae DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle); 1481c248b7dSInki Dae 1491c248b7dSInki Dae /* drop reference from allocate - handle holds it now. */ 1501c248b7dSInki Dae drm_gem_object_unreference_unlocked(obj); 1511c248b7dSInki Dae 1522364839aSJoonyoung Shim return 0; 1532364839aSJoonyoung Shim } 1541c248b7dSInki Dae 1552364839aSJoonyoung Shim void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj) 1562364839aSJoonyoung Shim { 1572364839aSJoonyoung Shim struct drm_gem_object *obj; 158c01d73faSInki Dae struct exynos_drm_gem_buf *buf; 1592364839aSJoonyoung Shim 1602364839aSJoonyoung Shim DRM_DEBUG_KMS("%s\n", __FILE__); 1612364839aSJoonyoung Shim 1622364839aSJoonyoung Shim obj = &exynos_gem_obj->base; 163c01d73faSInki Dae buf = exynos_gem_obj->buffer; 1642364839aSJoonyoung Shim 1652364839aSJoonyoung Shim DRM_DEBUG_KMS("handle count = %d\n", atomic_read(&obj->handle_count)); 1662364839aSJoonyoung Shim 167c374e731SInki Dae /* 168c374e731SInki Dae * do not release memory region from exporter. 169c374e731SInki Dae * 170c374e731SInki Dae * the region will be released by exporter 171c374e731SInki Dae * once dmabuf's refcount becomes 0. 172c374e731SInki Dae */ 173c374e731SInki Dae if (obj->import_attach) 174c374e731SInki Dae goto out; 175c374e731SInki Dae 176c01d73faSInki Dae exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags, buf); 1772b35892eSInki Dae 178c374e731SInki Dae out: 179c01d73faSInki Dae exynos_drm_fini_buf(obj->dev, buf); 1802b35892eSInki Dae exynos_gem_obj->buffer = NULL; 1812364839aSJoonyoung Shim 1822364839aSJoonyoung Shim if (obj->map_list.map) 1832364839aSJoonyoung Shim drm_gem_free_mmap_offset(obj); 1842364839aSJoonyoung Shim 1852364839aSJoonyoung Shim /* release file pointer to gem object. */ 1861c248b7dSInki Dae drm_gem_object_release(obj); 1871c248b7dSInki Dae 1881c248b7dSInki Dae kfree(exynos_gem_obj); 1892b35892eSInki Dae exynos_gem_obj = NULL; 1902364839aSJoonyoung Shim } 1912364839aSJoonyoung Shim 192b2df26c1SInki Dae struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev, 1932364839aSJoonyoung Shim unsigned long size) 1942364839aSJoonyoung Shim { 1952364839aSJoonyoung Shim struct exynos_drm_gem_obj *exynos_gem_obj; 1962364839aSJoonyoung Shim struct drm_gem_object *obj; 1972364839aSJoonyoung Shim int ret; 1982364839aSJoonyoung Shim 1992364839aSJoonyoung Shim exynos_gem_obj = kzalloc(sizeof(*exynos_gem_obj), GFP_KERNEL); 2002364839aSJoonyoung Shim if (!exynos_gem_obj) { 2012364839aSJoonyoung Shim DRM_ERROR("failed to allocate exynos gem object\n"); 2022364839aSJoonyoung Shim return NULL; 2032364839aSJoonyoung Shim } 2042364839aSJoonyoung Shim 2052b35892eSInki Dae exynos_gem_obj->size = size; 2062364839aSJoonyoung Shim obj = &exynos_gem_obj->base; 2072364839aSJoonyoung Shim 2082364839aSJoonyoung Shim ret = drm_gem_object_init(dev, obj, size); 2092364839aSJoonyoung Shim if (ret < 0) { 2102364839aSJoonyoung Shim DRM_ERROR("failed to initialize gem object\n"); 2112364839aSJoonyoung Shim kfree(exynos_gem_obj); 2122364839aSJoonyoung Shim return NULL; 2132364839aSJoonyoung Shim } 2142364839aSJoonyoung Shim 2152364839aSJoonyoung Shim DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp); 2162364839aSJoonyoung Shim 2172364839aSJoonyoung Shim return exynos_gem_obj; 2181c248b7dSInki Dae } 2191c248b7dSInki Dae 220f088d5a9SInki Dae struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, 2212b35892eSInki Dae unsigned int flags, 222ee5e770eSJoonyoung Shim unsigned long size) 223f088d5a9SInki Dae { 2242364839aSJoonyoung Shim struct exynos_drm_gem_obj *exynos_gem_obj; 2252b35892eSInki Dae struct exynos_drm_gem_buf *buf; 2262b35892eSInki Dae int ret; 227f088d5a9SInki Dae 228dcf9af82SInki Dae if (!size) { 229dcf9af82SInki Dae DRM_ERROR("invalid size.\n"); 230dcf9af82SInki Dae return ERR_PTR(-EINVAL); 231dcf9af82SInki Dae } 232f088d5a9SInki Dae 233dcf9af82SInki Dae size = roundup_gem_size(size, flags); 234dcf9af82SInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 235dcf9af82SInki Dae 236dcf9af82SInki Dae ret = check_gem_flags(flags); 237dcf9af82SInki Dae if (ret) 238dcf9af82SInki Dae return ERR_PTR(ret); 2392b35892eSInki Dae 2402b35892eSInki Dae buf = exynos_drm_init_buf(dev, size); 2412b35892eSInki Dae if (!buf) 242ee5e770eSJoonyoung Shim return ERR_PTR(-ENOMEM); 243f088d5a9SInki Dae 2442364839aSJoonyoung Shim exynos_gem_obj = exynos_drm_gem_init(dev, size); 2452364839aSJoonyoung Shim if (!exynos_gem_obj) { 2462b35892eSInki Dae ret = -ENOMEM; 247dcf9af82SInki Dae goto err_fini_buf; 248f088d5a9SInki Dae } 249f088d5a9SInki Dae 2502b35892eSInki Dae exynos_gem_obj->buffer = buf; 2512b35892eSInki Dae 2522b35892eSInki Dae /* set memory type and cache attribute from user side. */ 2532b35892eSInki Dae exynos_gem_obj->flags = flags; 2542b35892eSInki Dae 2552b35892eSInki Dae ret = exynos_drm_alloc_buf(dev, buf, flags); 2562b35892eSInki Dae if (ret < 0) { 2572b35892eSInki Dae drm_gem_object_release(&exynos_gem_obj->base); 258dcf9af82SInki Dae goto err_fini_buf; 2592b35892eSInki Dae } 260f088d5a9SInki Dae 261f088d5a9SInki Dae return exynos_gem_obj; 262dcf9af82SInki Dae 263dcf9af82SInki Dae err_fini_buf: 2642b35892eSInki Dae exynos_drm_fini_buf(dev, buf); 2652b35892eSInki Dae return ERR_PTR(ret); 266f088d5a9SInki Dae } 267f088d5a9SInki Dae 2681c248b7dSInki Dae int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, 2691c248b7dSInki Dae struct drm_file *file_priv) 2701c248b7dSInki Dae { 2711c248b7dSInki Dae struct drm_exynos_gem_create *args = data; 272ee5e770eSJoonyoung Shim struct exynos_drm_gem_obj *exynos_gem_obj; 2732364839aSJoonyoung Shim int ret; 2741c248b7dSInki Dae 275f088d5a9SInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 2761c248b7dSInki Dae 2772b35892eSInki Dae exynos_gem_obj = exynos_drm_gem_create(dev, args->flags, args->size); 2781c248b7dSInki Dae if (IS_ERR(exynos_gem_obj)) 2791c248b7dSInki Dae return PTR_ERR(exynos_gem_obj); 2801c248b7dSInki Dae 2812364839aSJoonyoung Shim ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv, 2822364839aSJoonyoung Shim &args->handle); 2832364839aSJoonyoung Shim if (ret) { 2842364839aSJoonyoung Shim exynos_drm_gem_destroy(exynos_gem_obj); 2852364839aSJoonyoung Shim return ret; 2862364839aSJoonyoung Shim } 2872364839aSJoonyoung Shim 2881c248b7dSInki Dae return 0; 2891c248b7dSInki Dae } 2901c248b7dSInki Dae 291d87342c1SInki Dae dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev, 292f0b1bda7SInki Dae unsigned int gem_handle, 293d87342c1SInki Dae struct drm_file *filp) 294f0b1bda7SInki Dae { 295f0b1bda7SInki Dae struct exynos_drm_gem_obj *exynos_gem_obj; 296f0b1bda7SInki Dae struct drm_gem_object *obj; 297f0b1bda7SInki Dae 298d87342c1SInki Dae obj = drm_gem_object_lookup(dev, filp, gem_handle); 299f0b1bda7SInki Dae if (!obj) { 300f0b1bda7SInki Dae DRM_ERROR("failed to lookup gem object.\n"); 301f0b1bda7SInki Dae return ERR_PTR(-EINVAL); 302f0b1bda7SInki Dae } 303f0b1bda7SInki Dae 304f0b1bda7SInki Dae exynos_gem_obj = to_exynos_gem_obj(obj); 305f0b1bda7SInki Dae 306f0b1bda7SInki Dae return &exynos_gem_obj->buffer->dma_addr; 307f0b1bda7SInki Dae } 308f0b1bda7SInki Dae 309f0b1bda7SInki Dae void exynos_drm_gem_put_dma_addr(struct drm_device *dev, 310f0b1bda7SInki Dae unsigned int gem_handle, 311d87342c1SInki Dae struct drm_file *filp) 312f0b1bda7SInki Dae { 313f0b1bda7SInki Dae struct exynos_drm_gem_obj *exynos_gem_obj; 314f0b1bda7SInki Dae struct drm_gem_object *obj; 315f0b1bda7SInki Dae 316d87342c1SInki Dae obj = drm_gem_object_lookup(dev, filp, gem_handle); 317f0b1bda7SInki Dae if (!obj) { 318f0b1bda7SInki Dae DRM_ERROR("failed to lookup gem object.\n"); 319f0b1bda7SInki Dae return; 320f0b1bda7SInki Dae } 321f0b1bda7SInki Dae 322f0b1bda7SInki Dae exynos_gem_obj = to_exynos_gem_obj(obj); 323f0b1bda7SInki Dae 324f0b1bda7SInki Dae drm_gem_object_unreference_unlocked(obj); 325f0b1bda7SInki Dae 326f0b1bda7SInki Dae /* 327f0b1bda7SInki Dae * decrease obj->refcount one more time because we has already 328f0b1bda7SInki Dae * increased it at exynos_drm_gem_get_dma_addr(). 329f0b1bda7SInki Dae */ 330f0b1bda7SInki Dae drm_gem_object_unreference_unlocked(obj); 331f0b1bda7SInki Dae } 332f0b1bda7SInki Dae 3331c248b7dSInki Dae int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data, 3341c248b7dSInki Dae struct drm_file *file_priv) 3351c248b7dSInki Dae { 3361c248b7dSInki Dae struct drm_exynos_gem_map_off *args = data; 3371c248b7dSInki Dae 3381c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 3391c248b7dSInki Dae 3401c248b7dSInki Dae DRM_DEBUG_KMS("handle = 0x%x, offset = 0x%lx\n", 3411c248b7dSInki Dae args->handle, (unsigned long)args->offset); 3421c248b7dSInki Dae 3431c248b7dSInki Dae if (!(dev->driver->driver_features & DRIVER_GEM)) { 3441c248b7dSInki Dae DRM_ERROR("does not support GEM.\n"); 3451c248b7dSInki Dae return -ENODEV; 3461c248b7dSInki Dae } 3471c248b7dSInki Dae 3481c248b7dSInki Dae return exynos_drm_gem_dumb_map_offset(file_priv, dev, args->handle, 3491c248b7dSInki Dae &args->offset); 3501c248b7dSInki Dae } 3511c248b7dSInki Dae 3525b07c660SInki Dae static struct drm_file *exynos_drm_find_drm_file(struct drm_device *drm_dev, 3535b07c660SInki Dae struct file *filp) 3545b07c660SInki Dae { 3555b07c660SInki Dae struct drm_file *file_priv; 3565b07c660SInki Dae 3575b07c660SInki Dae mutex_lock(&drm_dev->struct_mutex); 3585b07c660SInki Dae 3595b07c660SInki Dae /* find current process's drm_file from filelist. */ 3605b07c660SInki Dae list_for_each_entry(file_priv, &drm_dev->filelist, lhead) { 3615b07c660SInki Dae if (file_priv->filp == filp) { 3625b07c660SInki Dae mutex_unlock(&drm_dev->struct_mutex); 3635b07c660SInki Dae return file_priv; 3645b07c660SInki Dae } 3655b07c660SInki Dae } 3665b07c660SInki Dae 3675b07c660SInki Dae mutex_unlock(&drm_dev->struct_mutex); 3685b07c660SInki Dae WARN_ON(1); 3695b07c660SInki Dae 3705b07c660SInki Dae return ERR_PTR(-EFAULT); 3715b07c660SInki Dae } 3725b07c660SInki Dae 3731c248b7dSInki Dae static int exynos_drm_gem_mmap_buffer(struct file *filp, 3741c248b7dSInki Dae struct vm_area_struct *vma) 3751c248b7dSInki Dae { 3761c248b7dSInki Dae struct drm_gem_object *obj = filp->private_data; 3771c248b7dSInki Dae struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); 3785b07c660SInki Dae struct drm_device *drm_dev = obj->dev; 3792c871127SInki Dae struct exynos_drm_gem_buf *buffer; 3805b07c660SInki Dae struct drm_file *file_priv; 3810519f9a1SInki Dae unsigned long vm_size; 3825b07c660SInki Dae int ret; 3831c248b7dSInki Dae 3841c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 3851c248b7dSInki Dae 386314e51b9SKonstantin Khlebnikov vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; 3875b07c660SInki Dae vma->vm_private_data = obj; 3885b07c660SInki Dae vma->vm_ops = drm_dev->driver->gem_vm_ops; 3895b07c660SInki Dae 3905b07c660SInki Dae /* restore it to driver's fops. */ 3915b07c660SInki Dae filp->f_op = fops_get(drm_dev->driver->fops); 3925b07c660SInki Dae 3935b07c660SInki Dae file_priv = exynos_drm_find_drm_file(drm_dev, filp); 3945b07c660SInki Dae if (IS_ERR(file_priv)) 3955b07c660SInki Dae return PTR_ERR(file_priv); 3965b07c660SInki Dae 3975b07c660SInki Dae /* restore it to drm_file. */ 3985b07c660SInki Dae filp->private_data = file_priv; 3991c248b7dSInki Dae 400c01d73faSInki Dae update_vm_cache_attr(exynos_gem_obj, vma); 4011c248b7dSInki Dae 4020519f9a1SInki Dae vm_size = vma->vm_end - vma->vm_start; 4032b35892eSInki Dae 4041c248b7dSInki Dae /* 4052c871127SInki Dae * a buffer contains information to physically continuous memory 4061c248b7dSInki Dae * allocated by user request or at framebuffer creation. 4071c248b7dSInki Dae */ 4082c871127SInki Dae buffer = exynos_gem_obj->buffer; 4091c248b7dSInki Dae 4101c248b7dSInki Dae /* check if user-requested size is valid. */ 4112c871127SInki Dae if (vm_size > buffer->size) 4121c248b7dSInki Dae return -EINVAL; 4131c248b7dSInki Dae 4145b07c660SInki Dae ret = dma_mmap_attrs(drm_dev->dev, vma, buffer->kvaddr, 4150519f9a1SInki Dae buffer->dma_addr, buffer->size, 4160519f9a1SInki Dae &buffer->dma_attrs); 4175b07c660SInki Dae if (ret < 0) { 4185b07c660SInki Dae DRM_ERROR("failed to mmap.\n"); 4195b07c660SInki Dae return ret; 4205b07c660SInki Dae } 4215b07c660SInki Dae 4225b07c660SInki Dae /* 4235b07c660SInki Dae * take a reference to this mapping of the object. And this reference 4245b07c660SInki Dae * is unreferenced by the corresponding vm_close call. 4255b07c660SInki Dae */ 4265b07c660SInki Dae drm_gem_object_reference(obj); 4275b07c660SInki Dae 4285b07c660SInki Dae mutex_lock(&drm_dev->struct_mutex); 4295b07c660SInki Dae drm_vm_open_locked(drm_dev, vma); 4305b07c660SInki Dae mutex_unlock(&drm_dev->struct_mutex); 4315b07c660SInki Dae 4325b07c660SInki Dae return 0; 4331c248b7dSInki Dae } 4341c248b7dSInki Dae 4351c248b7dSInki Dae static const struct file_operations exynos_drm_gem_fops = { 4361c248b7dSInki Dae .mmap = exynos_drm_gem_mmap_buffer, 4371c248b7dSInki Dae }; 4381c248b7dSInki Dae 4391c248b7dSInki Dae int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, 4401c248b7dSInki Dae struct drm_file *file_priv) 4411c248b7dSInki Dae { 4421c248b7dSInki Dae struct drm_exynos_gem_mmap *args = data; 4431c248b7dSInki Dae struct drm_gem_object *obj; 4441c248b7dSInki Dae unsigned int addr; 4451c248b7dSInki Dae 4461c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 4471c248b7dSInki Dae 4481c248b7dSInki Dae if (!(dev->driver->driver_features & DRIVER_GEM)) { 4491c248b7dSInki Dae DRM_ERROR("does not support GEM.\n"); 4501c248b7dSInki Dae return -ENODEV; 4511c248b7dSInki Dae } 4521c248b7dSInki Dae 4531c248b7dSInki Dae obj = drm_gem_object_lookup(dev, file_priv, args->handle); 4541c248b7dSInki Dae if (!obj) { 4551c248b7dSInki Dae DRM_ERROR("failed to lookup gem object.\n"); 4561c248b7dSInki Dae return -EINVAL; 4571c248b7dSInki Dae } 4581c248b7dSInki Dae 4595b07c660SInki Dae /* 4605b07c660SInki Dae * Set specific mmper's fops. And it will be restored by 4615b07c660SInki Dae * exynos_drm_gem_mmap_buffer to dev->driver->fops. 4625b07c660SInki Dae * This is used to call specific mapper temporarily. 4635b07c660SInki Dae */ 4645b07c660SInki Dae file_priv->filp->f_op = &exynos_drm_gem_fops; 4651c248b7dSInki Dae 4665b07c660SInki Dae /* 4675b07c660SInki Dae * Set gem object to private_data so that specific mmaper 4685b07c660SInki Dae * can get the gem object. And it will be restored by 4695b07c660SInki Dae * exynos_drm_gem_mmap_buffer to drm_file. 4705b07c660SInki Dae */ 4715b07c660SInki Dae file_priv->filp->private_data = obj; 4725b07c660SInki Dae 4735b07c660SInki Dae addr = vm_mmap(file_priv->filp, 0, args->size, 4741c248b7dSInki Dae PROT_READ | PROT_WRITE, MAP_SHARED, 0); 4751c248b7dSInki Dae 4761c248b7dSInki Dae drm_gem_object_unreference_unlocked(obj); 4771c248b7dSInki Dae 4785b07c660SInki Dae if (IS_ERR((void *)addr)) { 4795b07c660SInki Dae file_priv->filp->private_data = file_priv; 4801c248b7dSInki Dae return PTR_ERR((void *)addr); 4815b07c660SInki Dae } 4821c248b7dSInki Dae 4831c248b7dSInki Dae args->mapped = addr; 4841c248b7dSInki Dae 4851c248b7dSInki Dae DRM_DEBUG_KMS("mapped = 0x%lx\n", (unsigned long)args->mapped); 4861c248b7dSInki Dae 4871c248b7dSInki Dae return 0; 4881c248b7dSInki Dae } 4891c248b7dSInki Dae 49040cd7e0cSInki Dae int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data, 49140cd7e0cSInki Dae struct drm_file *file_priv) 49240cd7e0cSInki Dae { struct exynos_drm_gem_obj *exynos_gem_obj; 49340cd7e0cSInki Dae struct drm_exynos_gem_info *args = data; 49440cd7e0cSInki Dae struct drm_gem_object *obj; 49540cd7e0cSInki Dae 49640cd7e0cSInki Dae mutex_lock(&dev->struct_mutex); 49740cd7e0cSInki Dae 49840cd7e0cSInki Dae obj = drm_gem_object_lookup(dev, file_priv, args->handle); 49940cd7e0cSInki Dae if (!obj) { 50040cd7e0cSInki Dae DRM_ERROR("failed to lookup gem object.\n"); 50140cd7e0cSInki Dae mutex_unlock(&dev->struct_mutex); 50240cd7e0cSInki Dae return -EINVAL; 50340cd7e0cSInki Dae } 50440cd7e0cSInki Dae 50540cd7e0cSInki Dae exynos_gem_obj = to_exynos_gem_obj(obj); 50640cd7e0cSInki Dae 50740cd7e0cSInki Dae args->flags = exynos_gem_obj->flags; 50840cd7e0cSInki Dae args->size = exynos_gem_obj->size; 50940cd7e0cSInki Dae 51040cd7e0cSInki Dae drm_gem_object_unreference(obj); 51140cd7e0cSInki Dae mutex_unlock(&dev->struct_mutex); 51240cd7e0cSInki Dae 51340cd7e0cSInki Dae return 0; 51440cd7e0cSInki Dae } 51540cd7e0cSInki Dae 5162a3098ffSInki Dae struct vm_area_struct *exynos_gem_get_vma(struct vm_area_struct *vma) 5172a3098ffSInki Dae { 5182a3098ffSInki Dae struct vm_area_struct *vma_copy; 5192a3098ffSInki Dae 5202a3098ffSInki Dae vma_copy = kmalloc(sizeof(*vma_copy), GFP_KERNEL); 5212a3098ffSInki Dae if (!vma_copy) 5222a3098ffSInki Dae return NULL; 5232a3098ffSInki Dae 5242a3098ffSInki Dae if (vma->vm_ops && vma->vm_ops->open) 5252a3098ffSInki Dae vma->vm_ops->open(vma); 5262a3098ffSInki Dae 5272a3098ffSInki Dae if (vma->vm_file) 5282a3098ffSInki Dae get_file(vma->vm_file); 5292a3098ffSInki Dae 5302a3098ffSInki Dae memcpy(vma_copy, vma, sizeof(*vma)); 5312a3098ffSInki Dae 5322a3098ffSInki Dae vma_copy->vm_mm = NULL; 5332a3098ffSInki Dae vma_copy->vm_next = NULL; 5342a3098ffSInki Dae vma_copy->vm_prev = NULL; 5352a3098ffSInki Dae 5362a3098ffSInki Dae return vma_copy; 5372a3098ffSInki Dae } 5382a3098ffSInki Dae 5392a3098ffSInki Dae void exynos_gem_put_vma(struct vm_area_struct *vma) 5402a3098ffSInki Dae { 5412a3098ffSInki Dae if (!vma) 5422a3098ffSInki Dae return; 5432a3098ffSInki Dae 5442a3098ffSInki Dae if (vma->vm_ops && vma->vm_ops->close) 5452a3098ffSInki Dae vma->vm_ops->close(vma); 5462a3098ffSInki Dae 5472a3098ffSInki Dae if (vma->vm_file) 5482a3098ffSInki Dae fput(vma->vm_file); 5492a3098ffSInki Dae 5502a3098ffSInki Dae kfree(vma); 5512a3098ffSInki Dae } 5522a3098ffSInki Dae 5532a3098ffSInki Dae int exynos_gem_get_pages_from_userptr(unsigned long start, 5542a3098ffSInki Dae unsigned int npages, 5552a3098ffSInki Dae struct page **pages, 5562a3098ffSInki Dae struct vm_area_struct *vma) 5572a3098ffSInki Dae { 5582a3098ffSInki Dae int get_npages; 5592a3098ffSInki Dae 5602a3098ffSInki Dae /* the memory region mmaped with VM_PFNMAP. */ 5612a3098ffSInki Dae if (vma_is_io(vma)) { 5622a3098ffSInki Dae unsigned int i; 5632a3098ffSInki Dae 5642a3098ffSInki Dae for (i = 0; i < npages; ++i, start += PAGE_SIZE) { 5652a3098ffSInki Dae unsigned long pfn; 5662a3098ffSInki Dae int ret = follow_pfn(vma, start, &pfn); 5672a3098ffSInki Dae if (ret) 5682a3098ffSInki Dae return ret; 5692a3098ffSInki Dae 5702a3098ffSInki Dae pages[i] = pfn_to_page(pfn); 5712a3098ffSInki Dae } 5722a3098ffSInki Dae 5732a3098ffSInki Dae if (i != npages) { 5742a3098ffSInki Dae DRM_ERROR("failed to get user_pages.\n"); 5752a3098ffSInki Dae return -EINVAL; 5762a3098ffSInki Dae } 5772a3098ffSInki Dae 5782a3098ffSInki Dae return 0; 5792a3098ffSInki Dae } 5802a3098ffSInki Dae 5812a3098ffSInki Dae get_npages = get_user_pages(current, current->mm, start, 5822a3098ffSInki Dae npages, 1, 1, pages, NULL); 5832a3098ffSInki Dae get_npages = max(get_npages, 0); 5842a3098ffSInki Dae if (get_npages != npages) { 5852a3098ffSInki Dae DRM_ERROR("failed to get user_pages.\n"); 5862a3098ffSInki Dae while (get_npages) 5872a3098ffSInki Dae put_page(pages[--get_npages]); 5882a3098ffSInki Dae return -EFAULT; 5892a3098ffSInki Dae } 5902a3098ffSInki Dae 5912a3098ffSInki Dae return 0; 5922a3098ffSInki Dae } 5932a3098ffSInki Dae 5942a3098ffSInki Dae void exynos_gem_put_pages_to_userptr(struct page **pages, 5952a3098ffSInki Dae unsigned int npages, 5962a3098ffSInki Dae struct vm_area_struct *vma) 5972a3098ffSInki Dae { 5982a3098ffSInki Dae if (!vma_is_io(vma)) { 5992a3098ffSInki Dae unsigned int i; 6002a3098ffSInki Dae 6012a3098ffSInki Dae for (i = 0; i < npages; i++) { 6022a3098ffSInki Dae set_page_dirty_lock(pages[i]); 6032a3098ffSInki Dae 6042a3098ffSInki Dae /* 6052a3098ffSInki Dae * undo the reference we took when populating 6062a3098ffSInki Dae * the table. 6072a3098ffSInki Dae */ 6082a3098ffSInki Dae put_page(pages[i]); 6092a3098ffSInki Dae } 6102a3098ffSInki Dae } 6112a3098ffSInki Dae } 6122a3098ffSInki Dae 6132a3098ffSInki Dae int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev, 6142a3098ffSInki Dae struct sg_table *sgt, 6152a3098ffSInki Dae enum dma_data_direction dir) 6162a3098ffSInki Dae { 6172a3098ffSInki Dae int nents; 6182a3098ffSInki Dae 6192a3098ffSInki Dae mutex_lock(&drm_dev->struct_mutex); 6202a3098ffSInki Dae 6212a3098ffSInki Dae nents = dma_map_sg(drm_dev->dev, sgt->sgl, sgt->nents, dir); 6222a3098ffSInki Dae if (!nents) { 6232a3098ffSInki Dae DRM_ERROR("failed to map sgl with dma.\n"); 6242a3098ffSInki Dae mutex_unlock(&drm_dev->struct_mutex); 6252a3098ffSInki Dae return nents; 6262a3098ffSInki Dae } 6272a3098ffSInki Dae 6282a3098ffSInki Dae mutex_unlock(&drm_dev->struct_mutex); 6292a3098ffSInki Dae return 0; 6302a3098ffSInki Dae } 6312a3098ffSInki Dae 6322a3098ffSInki Dae void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev, 6332a3098ffSInki Dae struct sg_table *sgt, 6342a3098ffSInki Dae enum dma_data_direction dir) 6352a3098ffSInki Dae { 6362a3098ffSInki Dae dma_unmap_sg(drm_dev->dev, sgt->sgl, sgt->nents, dir); 6372a3098ffSInki Dae } 6382a3098ffSInki Dae 6391c248b7dSInki Dae int exynos_drm_gem_init_object(struct drm_gem_object *obj) 6401c248b7dSInki Dae { 6411c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 6421c248b7dSInki Dae 6431c248b7dSInki Dae return 0; 6441c248b7dSInki Dae } 6451c248b7dSInki Dae 646ee5e770eSJoonyoung Shim void exynos_drm_gem_free_object(struct drm_gem_object *obj) 6471c248b7dSInki Dae { 648b2df26c1SInki Dae struct exynos_drm_gem_obj *exynos_gem_obj; 649b2df26c1SInki Dae struct exynos_drm_gem_buf *buf; 650b2df26c1SInki Dae 6511c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 6521c248b7dSInki Dae 653b2df26c1SInki Dae exynos_gem_obj = to_exynos_gem_obj(obj); 654b2df26c1SInki Dae buf = exynos_gem_obj->buffer; 655b2df26c1SInki Dae 656b2df26c1SInki Dae if (obj->import_attach) 657b2df26c1SInki Dae drm_prime_gem_destroy(obj, buf->sgt); 658b2df26c1SInki Dae 6592364839aSJoonyoung Shim exynos_drm_gem_destroy(to_exynos_gem_obj(obj)); 6601c248b7dSInki Dae } 6611c248b7dSInki Dae 6621c248b7dSInki Dae int exynos_drm_gem_dumb_create(struct drm_file *file_priv, 663ee5e770eSJoonyoung Shim struct drm_device *dev, 664ee5e770eSJoonyoung Shim struct drm_mode_create_dumb *args) 6651c248b7dSInki Dae { 6661c248b7dSInki Dae struct exynos_drm_gem_obj *exynos_gem_obj; 6672364839aSJoonyoung Shim int ret; 6681c248b7dSInki Dae 6691c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 6701c248b7dSInki Dae 6711c248b7dSInki Dae /* 6721c248b7dSInki Dae * alocate memory to be used for framebuffer. 6731c248b7dSInki Dae * - this callback would be called by user application 6741c248b7dSInki Dae * with DRM_IOCTL_MODE_CREATE_DUMB command. 6751c248b7dSInki Dae */ 6761c248b7dSInki Dae 6773fd6b694SCooper Yuan args->pitch = args->width * ((args->bpp + 7) / 8); 6787da5907cSInki Dae args->size = args->pitch * args->height; 6791c248b7dSInki Dae 6802b35892eSInki Dae exynos_gem_obj = exynos_drm_gem_create(dev, args->flags, args->size); 6811c248b7dSInki Dae if (IS_ERR(exynos_gem_obj)) 6821c248b7dSInki Dae return PTR_ERR(exynos_gem_obj); 6831c248b7dSInki Dae 6842364839aSJoonyoung Shim ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv, 6852364839aSJoonyoung Shim &args->handle); 6862364839aSJoonyoung Shim if (ret) { 6872364839aSJoonyoung Shim exynos_drm_gem_destroy(exynos_gem_obj); 6882364839aSJoonyoung Shim return ret; 6892364839aSJoonyoung Shim } 6902364839aSJoonyoung Shim 6911c248b7dSInki Dae return 0; 6921c248b7dSInki Dae } 6931c248b7dSInki Dae 6941c248b7dSInki Dae int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv, 695ee5e770eSJoonyoung Shim struct drm_device *dev, uint32_t handle, 696ee5e770eSJoonyoung Shim uint64_t *offset) 6971c248b7dSInki Dae { 6981c248b7dSInki Dae struct drm_gem_object *obj; 6992d91cf17SJoonyoung Shim int ret = 0; 7001c248b7dSInki Dae 7011c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 7021c248b7dSInki Dae 7031c248b7dSInki Dae mutex_lock(&dev->struct_mutex); 7041c248b7dSInki Dae 7051c248b7dSInki Dae /* 7061c248b7dSInki Dae * get offset of memory allocated for drm framebuffer. 7071c248b7dSInki Dae * - this callback would be called by user application 7081c248b7dSInki Dae * with DRM_IOCTL_MODE_MAP_DUMB command. 7091c248b7dSInki Dae */ 7101c248b7dSInki Dae 7111c248b7dSInki Dae obj = drm_gem_object_lookup(dev, file_priv, handle); 7121c248b7dSInki Dae if (!obj) { 7131c248b7dSInki Dae DRM_ERROR("failed to lookup gem object.\n"); 7142d91cf17SJoonyoung Shim ret = -EINVAL; 7152d91cf17SJoonyoung Shim goto unlock; 7161c248b7dSInki Dae } 7171c248b7dSInki Dae 7186037bafaSLaurent Pinchart if (!obj->map_list.map) { 7196037bafaSLaurent Pinchart ret = drm_gem_create_mmap_offset(obj); 7202d91cf17SJoonyoung Shim if (ret) 7212d91cf17SJoonyoung Shim goto out; 7222d91cf17SJoonyoung Shim } 7231c248b7dSInki Dae 7246037bafaSLaurent Pinchart *offset = (u64)obj->map_list.hash.key << PAGE_SHIFT; 7251c248b7dSInki Dae DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset); 7261c248b7dSInki Dae 7272d91cf17SJoonyoung Shim out: 7282d91cf17SJoonyoung Shim drm_gem_object_unreference(obj); 7292d91cf17SJoonyoung Shim unlock: 7301c248b7dSInki Dae mutex_unlock(&dev->struct_mutex); 7312d91cf17SJoonyoung Shim return ret; 7321c248b7dSInki Dae } 7331c248b7dSInki Dae 734ee5e770eSJoonyoung Shim int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv, 735ee5e770eSJoonyoung Shim struct drm_device *dev, 736ee5e770eSJoonyoung Shim unsigned int handle) 737ee5e770eSJoonyoung Shim { 738ee5e770eSJoonyoung Shim int ret; 739ee5e770eSJoonyoung Shim 740ee5e770eSJoonyoung Shim DRM_DEBUG_KMS("%s\n", __FILE__); 741ee5e770eSJoonyoung Shim 742ee5e770eSJoonyoung Shim /* 743ee5e770eSJoonyoung Shim * obj->refcount and obj->handle_count are decreased and 744ee5e770eSJoonyoung Shim * if both them are 0 then exynos_drm_gem_free_object() 745ee5e770eSJoonyoung Shim * would be called by callback to release resources. 746ee5e770eSJoonyoung Shim */ 747ee5e770eSJoonyoung Shim ret = drm_gem_handle_delete(file_priv, handle); 748ee5e770eSJoonyoung Shim if (ret < 0) { 749ee5e770eSJoonyoung Shim DRM_ERROR("failed to delete drm_gem_handle.\n"); 750ee5e770eSJoonyoung Shim return ret; 751ee5e770eSJoonyoung Shim } 752ee5e770eSJoonyoung Shim 753ee5e770eSJoonyoung Shim return 0; 754ee5e770eSJoonyoung Shim } 755ee5e770eSJoonyoung Shim 7561c248b7dSInki Dae int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) 7571c248b7dSInki Dae { 7581c248b7dSInki Dae struct drm_gem_object *obj = vma->vm_private_data; 7591c248b7dSInki Dae struct drm_device *dev = obj->dev; 7602b35892eSInki Dae unsigned long f_vaddr; 7611c248b7dSInki Dae pgoff_t page_offset; 7621c248b7dSInki Dae int ret; 7631c248b7dSInki Dae 7641c248b7dSInki Dae page_offset = ((unsigned long)vmf->virtual_address - 7651c248b7dSInki Dae vma->vm_start) >> PAGE_SHIFT; 7662b35892eSInki Dae f_vaddr = (unsigned long)vmf->virtual_address; 7671c248b7dSInki Dae 7681c248b7dSInki Dae mutex_lock(&dev->struct_mutex); 7691c248b7dSInki Dae 7700519f9a1SInki Dae ret = exynos_drm_gem_map_buf(obj, vma, f_vaddr, page_offset); 7712b35892eSInki Dae if (ret < 0) 7720519f9a1SInki Dae DRM_ERROR("failed to map a buffer with user.\n"); 7731c248b7dSInki Dae 7741c248b7dSInki Dae mutex_unlock(&dev->struct_mutex); 7751c248b7dSInki Dae 7761c248b7dSInki Dae return convert_to_vm_err_msg(ret); 7771c248b7dSInki Dae } 7781c248b7dSInki Dae 7791c248b7dSInki Dae int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) 7801c248b7dSInki Dae { 781c01d73faSInki Dae struct exynos_drm_gem_obj *exynos_gem_obj; 782c01d73faSInki Dae struct drm_gem_object *obj; 7831c248b7dSInki Dae int ret; 7841c248b7dSInki Dae 7851c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 7861c248b7dSInki Dae 7871c248b7dSInki Dae /* set vm_area_struct. */ 7881c248b7dSInki Dae ret = drm_gem_mmap(filp, vma); 7891c248b7dSInki Dae if (ret < 0) { 7901c248b7dSInki Dae DRM_ERROR("failed to mmap.\n"); 7911c248b7dSInki Dae return ret; 7921c248b7dSInki Dae } 7931c248b7dSInki Dae 794c01d73faSInki Dae obj = vma->vm_private_data; 795c01d73faSInki Dae exynos_gem_obj = to_exynos_gem_obj(obj); 796c01d73faSInki Dae 797c01d73faSInki Dae ret = check_gem_flags(exynos_gem_obj->flags); 798c01d73faSInki Dae if (ret) { 799c01d73faSInki Dae drm_gem_vm_close(vma); 800c01d73faSInki Dae drm_gem_free_mmap_offset(obj); 801c01d73faSInki Dae return ret; 802c01d73faSInki Dae } 803c01d73faSInki Dae 8041c248b7dSInki Dae vma->vm_flags &= ~VM_PFNMAP; 8051c248b7dSInki Dae vma->vm_flags |= VM_MIXEDMAP; 8061c248b7dSInki Dae 807c01d73faSInki Dae update_vm_cache_attr(exynos_gem_obj, vma); 808c01d73faSInki Dae 8091c248b7dSInki Dae return ret; 8101c248b7dSInki Dae } 811