drivers/gpu/drm/exynos_tmp/exynos_drm_drv.c

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   3  * Authors:
   4  *      Inki Dae <inki.dae@samsung.com>
   5  *      Joonyoung Shim <jy0922.shim@samsung.com>
   6  *      Seung-Woo Kim <sw0312.kim@samsung.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  25  * OTHER DEALINGS IN THE SOFTWARE.
  26  */
  27
  28 #include "drmP.h"
  29 #include "drm.h"
  30 #include "drm_crtc_helper.h"
  31
  32 #include <drm/exynos_drm.h>
  33
  34 #include "exynos_drm_drv.h"
  35 #include "exynos_drm_crtc.h"
  36 #include "exynos_drm_encoder.h"
  37 #include "exynos_drm_fbdev.h"
  38 #include "exynos_drm_fb.h"
  39 #include "exynos_drm_gem.h"
  40 #include "exynos_drm_g2d.h"
  41 #include "exynos_drm_rotator.h"
  42 #include "exynos_drm_plane.h"
  43 #include "exynos_drm_vidi.h"
  44 #include "exynos_drm_dmabuf.h"
  45
  46 #define DRIVER_NAME     "exynos-drm"
  47 #define DRIVER_DESC     "Samsung SoC DRM"
  48 #define DRIVER_DATE     "20110530"
  49 #define DRIVER_MAJOR    1
  50 #define DRIVER_MINOR    0
  51
  52 #define VBLANK_OFF_DELAY        50000
  53
  54 static int exynos_drm_list_gem_info(int id, void *ptr, void *data)
  55 {
  56         struct drm_gem_object *obj = ptr;
  57         struct drm_file *filp = data;
  58         struct exynos_drm_gem_obj *gem = to_exynos_gem_obj(obj);
  59         struct exynos_drm_gem_buf *buf = gem->buffer;
  60
  61         DRM_INFO("%3d \t%3d \t%2d \t\t%2d \t0x%lx \t0x%x \t0x%lx "\
  62                         "\t%2d \t\t%2d \t\t%2d\n",
  63                         filp->pid,
  64                         id,
  65                         atomic_read(&obj->refcount.refcount),
  66                         atomic_read(&obj->handle_count),
  67                         gem->size,
  68                         gem->flags,
  69                         buf->page_size,
  70                         buf->pfnmap,
  71                         obj->export_dma_buf ? 1 : 0,
  72                         obj->import_attach ? 1 : 0);
  73
  74         return 0;
  75 }
  76
  77 static ssize_t exynos_drm_show_gem_info(struct device *dev,
  78                                         struct device_attribute *attr,
  79                                         char *buf)
  80 {
  81         struct drm_device *drm_dev = dev_get_drvdata(dev);
  82         struct drm_file *filp;
  83
  84         DRM_INFO("pid \thandle \trefcount \thcount \tsize \t\tflags "\
  85                 "\tpage_size \tpfnmap \texport_to_fd \timport_from_fd\n");
  86
  87         list_for_each_entry(filp, &drm_dev->filelist, lhead)
  88                 idr_for_each(&filp->object_idr, &exynos_drm_list_gem_info,
  89                                 filp);
  90
  91         return strlen(buf);
  92 }
  93
  94 static const struct device_attribute exynos_device_attrs[] = {
  95         __ATTR(gem_info, S_IRUGO, exynos_drm_show_gem_info, NULL)
  96 };
  97
  98 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
  99 {
 100         struct exynos_drm_private *private;
 101         int ret;
 102         int nr;
 103
 104         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 105
 106         private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
 107         if (!private) {
 108                 DRM_ERROR("failed to allocate private\n");
 109                 return -ENOMEM;
 110         }
 111
 112         INIT_LIST_HEAD(&private->pageflip_event_list);
 113         dev->dev_private = (void *)private;
 114
 115         drm_mode_config_init(dev);
 116
 117         /* init kms poll for handling hpd */
 118         drm_kms_helper_poll_init(dev);
 119
 120         exynos_drm_mode_config_init(dev);
 121
 122         /*
 123          * EXYNOS4 is enough to have two CRTCs and each crtc would be used
 124          * without dependency of hardware.
 125          */
 126         for (nr = 0; nr < MAX_CRTC; nr++) {
 127                 ret = exynos_drm_crtc_create(dev, nr);
 128                 if (ret)
 129                         goto err_crtc;
 130         }
 131
 132         for (nr = 0; nr < MAX_PLANE; nr++) {
 133                 ret = exynos_plane_init(dev, nr);
 134                 if (ret)
 135                         goto err_crtc;
 136         }
 137
 138         ret = drm_vblank_init(dev, MAX_CRTC);
 139         if (ret)
 140                 goto err_crtc;
 141
 142         /*
 143          * probe sub drivers such as display controller and hdmi driver,
 144          * that were registered at probe() of platform driver
 145          * to the sub driver and create encoder and connector for them.
 146          */
 147         ret = exynos_drm_device_register(dev);
 148         if (ret)
 149                 goto err_vblank;
 150
 151         /* setup possible_clones. */
 152         exynos_drm_encoder_setup(dev);
 153
 154         /*
 155          * create and configure fb helper and also exynos specific
 156          * fbdev object.
 157          */
 158         ret = exynos_drm_fbdev_init(dev);
 159         if (ret) {
 160                 DRM_ERROR("failed to initialize drm fbdev\n");
 161                 goto err_drm_device;
 162         }
 163
 164         drm_vblank_offdelay = VBLANK_OFF_DELAY;
 165
 166         ret = device_create_file(dev->dev, &exynos_device_attrs[0]);
 167         if (ret < 0)
 168                 DRM_DEBUG_DRIVER("failed to create sysfs.\n");
 169
 170         return 0;
 171
 172 err_drm_device:
 173         exynos_drm_device_unregister(dev);
 174 err_vblank:
 175         drm_vblank_cleanup(dev);
 176 err_crtc:
 177         drm_mode_config_cleanup(dev);
 178         kfree(private);
 179
 180         return ret;
 181 }
 182
 183 static int exynos_drm_unload(struct drm_device *dev)
 184 {
 185         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 186
 187         exynos_drm_fbdev_fini(dev);
 188         exynos_drm_device_unregister(dev);
 189         drm_vblank_cleanup(dev);
 190         drm_kms_helper_poll_fini(dev);
 191         drm_mode_config_cleanup(dev);
 192         kfree(dev->dev_private);
 193
 194         dev->dev_private = NULL;
 195
 196         return 0;
 197 }
 198
 199 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 200 {
 201         struct drm_exynos_file_private *file_priv;
 202
 203         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 204
 205         file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
 206         if (!file_priv)
 207                 return -ENOMEM;
 208
 209         drm_prime_init_file_private(&file->prime);
 210         file->driver_priv = file_priv;
 211
 212         return exynos_drm_subdrv_open(dev, file);
 213 }
 214
 215 static void exynos_drm_preclose(struct drm_device *dev,
 216                                         struct drm_file *file)
 217 {
 218         struct exynos_drm_private *private = dev->dev_private;
 219         struct drm_pending_vblank_event *e, *t;
 220         unsigned long flags;
 221
 222         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 223
 224         /* release events of current file */
 225         spin_lock_irqsave(&dev->event_lock, flags);
 226         list_for_each_entry_safe(e, t, &private->pageflip_event_list,
 227                         base.link) {
 228                 if (e->base.file_priv == file) {
 229                         list_del(&e->base.link);
 230                         e->base.destroy(&e->base);
 231                 }
 232         }
 233         drm_prime_destroy_file_private(&file->prime);
 234         spin_unlock_irqrestore(&dev->event_lock, flags);
 235
 236         exynos_drm_subdrv_close(dev, file);
 237 }
 238
 239 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 240 {
 241         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 242
 243         if (!file->driver_priv)
 244                 return;
 245
 246         kfree(file->driver_priv);
 247         file->driver_priv = NULL;
 248 }
 249
 250 static void exynos_drm_lastclose(struct drm_device *dev)
 251 {
 252         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 253
 254         exynos_drm_fbdev_restore_mode(dev);
 255 }
 256
 257 static struct vm_operations_struct exynos_drm_gem_vm_ops = {
 258         .fault = exynos_drm_gem_fault,
 259         .open = drm_gem_vm_open,
 260         .close = drm_gem_vm_close,
 261 };
 262
 263 static struct drm_ioctl_desc exynos_ioctls[] = {
 264         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
 265                         DRM_UNLOCKED),
 266         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
 267                         exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED),
 268         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
 269                         exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED),
 270         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_USERPTR,
 271                         exynos_drm_gem_userptr_ioctl, DRM_UNLOCKED),
 272         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
 273                         exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
 274         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_EXPORT_UMP,
 275                         exynos_drm_gem_export_ump_ioctl, DRM_UNLOCKED),
 276         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CACHE_OP,
 277                         exynos_drm_gem_cache_op_ioctl, DRM_UNLOCKED),
 278         /* temporary ioctl commands. */
 279         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET_PHY,
 280                         exynos_drm_gem_get_phy_ioctl, DRM_UNLOCKED),
 281         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_PHY_IMP,
 282                         exynos_drm_gem_phy_imp_ioctl, DRM_UNLOCKED),
 283         DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS,
 284                         exynos_plane_set_zpos_ioctl, DRM_UNLOCKED | DRM_AUTH),
 285         DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
 286                         vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
 287
 288         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
 289                         exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
 290         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
 291                         exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
 292         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
 293                         exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
 294
 295         DRM_IOCTL_DEF_DRV(EXYNOS_ROTATOR_EXEC,
 296                         exynos_drm_rotator_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
 297 };
 298
 299 static const struct file_operations exynos_drm_driver_fops = {
 300         .owner          = THIS_MODULE,
 301         .open           = drm_open,
 302         .mmap           = exynos_drm_gem_mmap,
 303         .poll           = drm_poll,
 304         .read           = drm_read,
 305         .unlocked_ioctl = drm_ioctl,
 306         .release        = drm_release,
 307 };
 308
 309 static struct drm_driver exynos_drm_driver = {
 310         .driver_features        = DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM |
 311                                   DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
 312         .load                   = exynos_drm_load,
 313         .unload                 = exynos_drm_unload,
 314         .open                   = exynos_drm_open,
 315         .preclose               = exynos_drm_preclose,
 316         .lastclose              = exynos_drm_lastclose,
 317         .postclose              = exynos_drm_postclose,
 318         .get_vblank_counter     = drm_vblank_count,
 319         .enable_vblank          = exynos_drm_crtc_enable_vblank,
 320         .disable_vblank         = exynos_drm_crtc_disable_vblank,
 321         .gem_init_object        = exynos_drm_gem_init_object,
 322         .gem_free_object        = exynos_drm_gem_free_object,
 323         .gem_vm_ops             = &exynos_drm_gem_vm_ops,
 324         .gem_close_object       = &exynos_drm_gem_close_object,
 325         .dumb_create            = exynos_drm_gem_dumb_create,
 326         .dumb_map_offset        = exynos_drm_gem_dumb_map_offset,
 327         .dumb_destroy           = exynos_drm_gem_dumb_destroy,
 328         .prime_handle_to_fd     = drm_gem_prime_handle_to_fd,
 329         .prime_fd_to_handle     = drm_gem_prime_fd_to_handle,
 330         .gem_prime_export       = exynos_dmabuf_prime_export,
 331         .gem_prime_import       = exynos_dmabuf_prime_import,
 332         .ioctls                 = exynos_ioctls,
 333         .fops                   = &exynos_drm_driver_fops,
 334         .name   = DRIVER_NAME,
 335         .desc   = DRIVER_DESC,
 336         .date   = DRIVER_DATE,
 337         .major  = DRIVER_MAJOR,
 338         .minor  = DRIVER_MINOR,
 339 };
 340
 341 static int exynos_drm_platform_probe(struct platform_device *pdev)
 342 {
 343         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 344
 345         exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
 346
 347         return drm_platform_init(&exynos_drm_driver, pdev);
 348 }
 349
 350 static int exynos_drm_platform_remove(struct platform_device *pdev)
 351 {
 352         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 353
 354         drm_platform_exit(&exynos_drm_driver, pdev);
 355
 356         return 0;
 357 }
 358
 359 static struct platform_driver exynos_drm_platform_driver = {
 360         .probe          = exynos_drm_platform_probe,
 361         .remove         = __devexit_p(exynos_drm_platform_remove),
 362         .driver         = {
 363                 .owner  = THIS_MODULE,
 364                 .name   = "exynos-drm",
 365         },
 366 };
 367
 368 static int __init exynos_drm_init(void)
 369 {
 370         int ret;
 371
 372         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 373
 374 #ifdef CONFIG_DRM_EXYNOS_FIMD
 375         ret = platform_driver_register(&fimd_driver);
 376         if (ret < 0)
 377                 goto out_fimd;
 378 #endif
 379
 380 #ifdef CONFIG_DRM_EXYNOS_HDMI
 381         ret = platform_driver_register(&hdmi_driver);
 382         if (ret < 0)
 383                 goto out_hdmi;
 384         ret = platform_driver_register(&mixer_driver);
 385         if (ret < 0)
 386                 goto out_mixer;
 387         ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
 388         if (ret < 0)
 389                 goto out_common_hdmi;
 390 #endif
 391
 392 #ifdef CONFIG_DRM_EXYNOS_VIDI
 393         ret = platform_driver_register(&vidi_driver);
 394         if (ret < 0)
 395                 goto out_vidi;
 396 #endif
 397
 398 #ifdef CONFIG_DRM_EXYNOS_G2D
 399         ret = platform_driver_register(&g2d_driver);
 400         if (ret < 0)
 401                 goto out_g2d;
 402 #endif
 403
 404 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 405         ret = platform_driver_register(&rotator_driver);
 406         if (ret < 0)
 407                 goto out_rotator;
 408 #endif
 409
 410         ret = platform_driver_register(&exynos_drm_platform_driver);
 411         if (ret < 0)
 412                 goto out;
 413
 414         return 0;
 415
 416 out:
 417 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 418         platform_driver_unregister(&rotator_driver);
 419 out_rotator:
 420 #endif
 421
 422 #ifdef CONFIG_DRM_EXYNOS_G2D
 423         platform_driver_unregister(&g2d_driver);
 424 out_g2d:
 425 #endif
 426
 427 #ifdef CONFIG_DRM_EXYNOS_VIDI
 428         platform_driver_unregister(&vidi_driver);
 429 out_vidi:
 430 #endif
 431
 432 #ifdef CONFIG_DRM_EXYNOS_HDMI
 433         platform_driver_unregister(&exynos_drm_common_hdmi_driver);
 434 out_common_hdmi:
 435         platform_driver_unregister(&mixer_driver);
 436 out_mixer:
 437         platform_driver_unregister(&hdmi_driver);
 438 out_hdmi:
 439 #endif
 440
 441 #ifdef CONFIG_DRM_EXYNOS_FIMD
 442         platform_driver_unregister(&fimd_driver);
 443 out_fimd:
 444 #endif
 445         return ret;
 446 }
 447
 448 static void __exit exynos_drm_exit(void)
 449 {
 450         DRM_DEBUG_DRIVER("%s\n", __FILE__);
 451
 452         platform_driver_unregister(&exynos_drm_platform_driver);
 453
 454 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 455         platform_driver_unregister(&rotator_driver);
 456 #endif
 457
 458 #ifdef CONFIG_DRM_EXYNOS_G2D
 459         platform_driver_unregister(&g2d_driver);
 460 #endif
 461
 462 #ifdef CONFIG_DRM_EXYNOS_VIDI
 463         platform_driver_unregister(&vidi_driver);
 464 #endif
 465
 466 #ifdef CONFIG_DRM_EXYNOS_HDMI
 467         platform_driver_unregister(&exynos_drm_common_hdmi_driver);
 468         platform_driver_unregister(&mixer_driver);
 469         platform_driver_unregister(&hdmi_driver);
 470 #endif
 471
 472 #ifdef CONFIG_DRM_EXYNOS_FIMD
 473         platform_driver_unregister(&fimd_driver);
 474 #endif
 475 }
 476
 477 module_init(exynos_drm_init);
 478 module_exit(exynos_drm_exit);
 479
 480 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
 481 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 482 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
 483 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
 484 MODULE_LICENSE("GPL");