drivers/gpu/drm/gma500/psb_drv.c

   1 /**************************************************************************
   2  * Copyright (c) 2007-2011, Intel Corporation.
   3  * All Rights Reserved.
   4  * Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX., USA.
   5  * All Rights Reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms and conditions of the GNU General Public License,
   9  * version 2, as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  **************************************************************************/
  21
  22 #include <drm/drmP.h>
  23 #include <drm/drm.h>
  24 #include "gma_drm.h"
  25 #include "psb_drv.h"
  26 #include "framebuffer.h"
  27 #include "psb_reg.h"
  28 #include "psb_intel_reg.h"
  29 #include "intel_bios.h"
  30 #include "mid_bios.h"
  31 #include <drm/drm_pciids.h>
  32 #include "power.h"
  33 #include <linux/cpu.h>
  34 #include <linux/notifier.h>
  35 #include <linux/spinlock.h>
  36 #include <linux/pm_runtime.h>
  37 #include <acpi/video.h>
  38 #include <linux/module.h>
  39
  40 static int drm_psb_trap_pagefaults;
  41
  42 static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  43
  44 MODULE_PARM_DESC(trap_pagefaults, "Error and reset on MMU pagefaults");
  45 module_param_named(trap_pagefaults, drm_psb_trap_pagefaults, int, 0600);
  46
  47
  48 static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
  49         { 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
  50         { 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
  51 #if defined(CONFIG_DRM_GMA600)
  52         { 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  53         { 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  54         { 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  55         { 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  56         { 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  57         { 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  58         { 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  59         { 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  60         /* Atom E620 */
  61         { 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
  62 #endif
  63 #if defined(CONFIG_DRM_MEDFIELD)
  64         {0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  65         {0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  66         {0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  67         {0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  68         {0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  69         {0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  70         {0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  71         {0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops},
  72 #endif
  73 #if defined(CONFIG_DRM_GMA3600)
  74         { 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  75         { 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  76         { 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  77         { 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  78         { 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  79         { 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  80         { 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  81         { 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
  82 #endif
  83         { 0, }
  84 };
  85 MODULE_DEVICE_TABLE(pci, pciidlist);
  86
  87 /*
  88  * Standard IOCTLs.
  89  */
  90
  91 #define DRM_IOCTL_GMA_ADB       \
  92                 DRM_IOWR(DRM_GMA_ADB + DRM_COMMAND_BASE, uint32_t)
  93 #define DRM_IOCTL_GMA_MODE_OPERATION    \
  94                 DRM_IOWR(DRM_GMA_MODE_OPERATION + DRM_COMMAND_BASE, \
  95                          struct drm_psb_mode_operation_arg)
  96 #define DRM_IOCTL_GMA_STOLEN_MEMORY     \
  97                 DRM_IOWR(DRM_GMA_STOLEN_MEMORY + DRM_COMMAND_BASE, \
  98                          struct drm_psb_stolen_memory_arg)
  99 #define DRM_IOCTL_GMA_GAMMA     \
 100                 DRM_IOWR(DRM_GMA_GAMMA + DRM_COMMAND_BASE, \
 101                          struct drm_psb_dpst_lut_arg)
 102 #define DRM_IOCTL_GMA_DPST_BL   \
 103                 DRM_IOWR(DRM_GMA_DPST_BL + DRM_COMMAND_BASE, \
 104                          uint32_t)
 105 #define DRM_IOCTL_GMA_GET_PIPE_FROM_CRTC_ID     \
 106                 DRM_IOWR(DRM_GMA_GET_PIPE_FROM_CRTC_ID + DRM_COMMAND_BASE, \
 107                          struct drm_psb_get_pipe_from_crtc_id_arg)
 108 #define DRM_IOCTL_GMA_GEM_CREATE        \
 109                 DRM_IOWR(DRM_GMA_GEM_CREATE + DRM_COMMAND_BASE, \
 110                          struct drm_psb_gem_create)
 111 #define DRM_IOCTL_GMA_GEM_MMAP  \
 112                 DRM_IOWR(DRM_GMA_GEM_MMAP + DRM_COMMAND_BASE, \
 113                          struct drm_psb_gem_mmap)
 114
 115 static int psb_adb_ioctl(struct drm_device *dev, void *data,
 116                          struct drm_file *file_priv);
 117 static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
 118                                     struct drm_file *file_priv);
 119 static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
 120                                    struct drm_file *file_priv);
 121 static int psb_gamma_ioctl(struct drm_device *dev, void *data,
 122                            struct drm_file *file_priv);
 123 static int psb_dpst_bl_ioctl(struct drm_device *dev, void *data,
 124                              struct drm_file *file_priv);
 125
 126 static struct drm_ioctl_desc psb_ioctls[] = {
 127         DRM_IOCTL_DEF_DRV(GMA_ADB, psb_adb_ioctl, DRM_AUTH),
 128         DRM_IOCTL_DEF_DRV(GMA_MODE_OPERATION, psb_mode_operation_ioctl,
 129                       DRM_AUTH),
 130         DRM_IOCTL_DEF_DRV(GMA_STOLEN_MEMORY, psb_stolen_memory_ioctl,
 131                       DRM_AUTH),
 132         DRM_IOCTL_DEF_DRV(GMA_GAMMA, psb_gamma_ioctl, DRM_AUTH),
 133         DRM_IOCTL_DEF_DRV(GMA_DPST_BL, psb_dpst_bl_ioctl, DRM_AUTH),
 134         DRM_IOCTL_DEF_DRV(GMA_GET_PIPE_FROM_CRTC_ID,
 135                                         psb_intel_get_pipe_from_crtc_id, 0),
 136         DRM_IOCTL_DEF_DRV(GMA_GEM_CREATE, psb_gem_create_ioctl,
 137                                                 DRM_UNLOCKED | DRM_AUTH),
 138         DRM_IOCTL_DEF_DRV(GMA_GEM_MMAP, psb_gem_mmap_ioctl,
 139                                                 DRM_UNLOCKED | DRM_AUTH),
 140 };
 141
 142 static void psb_lastclose(struct drm_device *dev)
 143 {
 144         return;
 145 }
 146
 147 static void psb_do_takedown(struct drm_device *dev)
 148 {
 149 }
 150
 151 static int psb_do_init(struct drm_device *dev)
 152 {
 153         struct drm_psb_private *dev_priv = dev->dev_private;
 154         struct psb_gtt *pg = &dev_priv->gtt;
 155
 156         uint32_t stolen_gtt;
 157
 158         int ret = -ENOMEM;
 159
 160         if (pg->mmu_gatt_start & 0x0FFFFFFF) {
 161                 dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
 162                 ret = -EINVAL;
 163                 goto out_err;
 164         }
 165
 166
 167         stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
 168         stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
 169         stolen_gtt =
 170             (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
 171
 172         dev_priv->gatt_free_offset = pg->mmu_gatt_start +
 173             (stolen_gtt << PAGE_SHIFT) * 1024;
 174
 175         if (1 || drm_debug) {
 176                 uint32_t core_id = PSB_RSGX32(PSB_CR_CORE_ID);
 177                 uint32_t core_rev = PSB_RSGX32(PSB_CR_CORE_REVISION);
 178                 DRM_INFO("SGX core id = 0x%08x\n", core_id);
 179                 DRM_INFO("SGX core rev major = 0x%02x, minor = 0x%02x\n",
 180                          (core_rev & _PSB_CC_REVISION_MAJOR_MASK) >>
 181                          _PSB_CC_REVISION_MAJOR_SHIFT,
 182                          (core_rev & _PSB_CC_REVISION_MINOR_MASK) >>
 183                          _PSB_CC_REVISION_MINOR_SHIFT);
 184                 DRM_INFO
 185                     ("SGX core rev maintenance = 0x%02x, designer = 0x%02x\n",
 186                      (core_rev & _PSB_CC_REVISION_MAINTENANCE_MASK) >>
 187                      _PSB_CC_REVISION_MAINTENANCE_SHIFT,
 188                      (core_rev & _PSB_CC_REVISION_DESIGNER_MASK) >>
 189                      _PSB_CC_REVISION_DESIGNER_SHIFT);
 190         }
 191
 192
 193         spin_lock_init(&dev_priv->irqmask_lock);
 194         spin_lock_init(&dev_priv->lock_2d);
 195
 196         PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
 197         PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
 198         PSB_RSGX32(PSB_CR_BIF_BANK1);
 199         PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_MMU_ER_MASK,
 200                                                         PSB_CR_BIF_CTRL);
 201         psb_spank(dev_priv);
 202
 203         /* mmu_gatt ?? */
 204         PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
 205         return 0;
 206 out_err:
 207         psb_do_takedown(dev);
 208         return ret;
 209 }
 210
 211 static int psb_driver_unload(struct drm_device *dev)
 212 {
 213         struct drm_psb_private *dev_priv = dev->dev_private;
 214
 215         /* Kill vblank etc here */
 216
 217         gma_backlight_exit(dev);
 218
 219         psb_modeset_cleanup(dev);
 220
 221         if (dev_priv) {
 222                 psb_lid_timer_takedown(dev_priv);
 223                 gma_intel_opregion_exit(dev);
 224
 225                 if (dev_priv->ops->chip_teardown)
 226                         dev_priv->ops->chip_teardown(dev);
 227                 psb_do_takedown(dev);
 228
 229
 230                 if (dev_priv->pf_pd) {
 231                         psb_mmu_free_pagedir(dev_priv->pf_pd);
 232                         dev_priv->pf_pd = NULL;
 233                 }
 234                 if (dev_priv->mmu) {
 235                         struct psb_gtt *pg = &dev_priv->gtt;
 236
 237                         down_read(&pg->sem);
 238                         psb_mmu_remove_pfn_sequence(
 239                                 psb_mmu_get_default_pd
 240                                 (dev_priv->mmu),
 241                                 pg->mmu_gatt_start,
 242                                 dev_priv->vram_stolen_size >> PAGE_SHIFT);
 243                         up_read(&pg->sem);
 244                         psb_mmu_driver_takedown(dev_priv->mmu);
 245                         dev_priv->mmu = NULL;
 246                 }
 247                 psb_gtt_takedown(dev);
 248                 if (dev_priv->scratch_page) {
 249                         __free_page(dev_priv->scratch_page);
 250                         dev_priv->scratch_page = NULL;
 251                 }
 252                 if (dev_priv->vdc_reg) {
 253                         iounmap(dev_priv->vdc_reg);
 254                         dev_priv->vdc_reg = NULL;
 255                 }
 256                 if (dev_priv->sgx_reg) {
 257                         iounmap(dev_priv->sgx_reg);
 258                         dev_priv->sgx_reg = NULL;
 259                 }
 260
 261                 kfree(dev_priv);
 262                 dev->dev_private = NULL;
 263
 264                 /*destroy VBT data*/
 265                 psb_intel_destroy_bios(dev);
 266         }
 267
 268         gma_power_uninit(dev);
 269
 270         return 0;
 271 }
 272
 273
 274 static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 275 {
 276         struct drm_psb_private *dev_priv;
 277         unsigned long resource_start;
 278         unsigned long irqflags;
 279         int ret = -ENOMEM;
 280         struct drm_connector *connector;
 281         struct psb_intel_encoder *psb_intel_encoder;
 282
 283         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 284         if (dev_priv == NULL)
 285                 return -ENOMEM;
 286
 287         dev_priv->ops = (struct psb_ops *)chipset;
 288         dev_priv->dev = dev;
 289         dev->dev_private = (void *) dev_priv;
 290
 291         pci_set_master(dev->pdev);
 292
 293         if (!IS_PSB(dev)) {
 294                 if (pci_enable_msi(dev->pdev))
 295                         dev_warn(dev->dev, "Enabling MSI failed!\n");
 296         }
 297
 298         dev_priv->num_pipe = dev_priv->ops->pipes;
 299
 300         resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
 301
 302         dev_priv->vdc_reg =
 303             ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
 304         if (!dev_priv->vdc_reg)
 305                 goto out_err;
 306
 307         dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
 308                                                         PSB_SGX_SIZE);
 309         if (!dev_priv->sgx_reg)
 310                 goto out_err;
 311
 312         ret = dev_priv->ops->chip_setup(dev);
 313         if (ret)
 314                 goto out_err;
 315
 316         /* Init OSPM support */
 317         gma_power_init(dev);
 318
 319         ret = -ENOMEM;
 320
 321         dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
 322         if (!dev_priv->scratch_page)
 323                 goto out_err;
 324
 325         set_pages_uc(dev_priv->scratch_page, 1);
 326
 327         ret = psb_gtt_init(dev, 0);
 328         if (ret)
 329                 goto out_err;
 330
 331         dev_priv->mmu = psb_mmu_driver_init((void *)0,
 332                                         drm_psb_trap_pagefaults, 0,
 333                                         dev_priv);
 334         if (!dev_priv->mmu)
 335                 goto out_err;
 336
 337         dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
 338         if (!dev_priv->pf_pd)
 339                 goto out_err;
 340
 341         psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
 342         psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
 343
 344         ret = psb_do_init(dev);
 345         if (ret)
 346                 return ret;
 347
 348         PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
 349         PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
 350
 351 /*      igd_opregion_init(&dev_priv->opregion_dev); */
 352 /*      acpi_video_register(); */
 353         if (dev_priv->lid_state)
 354                 psb_lid_timer_init(dev_priv);
 355
 356         ret = drm_vblank_init(dev, dev_priv->num_pipe);
 357         if (ret)
 358                 goto out_err;
 359
 360         /*
 361          * Install interrupt handlers prior to powering off SGX or else we will
 362          * crash.
 363          */
 364         dev_priv->vdc_irq_mask = 0;
 365         dev_priv->pipestat[0] = 0;
 366         dev_priv->pipestat[1] = 0;
 367         dev_priv->pipestat[2] = 0;
 368         spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 369         PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
 370         PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
 371         PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
 372         spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 373         if (IS_PSB(dev) && drm_core_check_feature(dev, DRIVER_MODESET))
 374                 drm_irq_install(dev);
 375
 376         dev->vblank_disable_allowed = 1;
 377
 378         dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
 379
 380         dev->driver->get_vblank_counter = psb_get_vblank_counter;
 381
 382         psb_modeset_init(dev);
 383         psb_fbdev_init(dev);
 384         drm_kms_helper_poll_init(dev);
 385
 386         /* Only add backlight support if we have LVDS output */
 387         list_for_each_entry(connector, &dev->mode_config.connector_list,
 388                             head) {
 389                 psb_intel_encoder = psb_intel_attached_encoder(connector);
 390
 391                 switch (psb_intel_encoder->type) {
 392                 case INTEL_OUTPUT_LVDS:
 393                 case INTEL_OUTPUT_MIPI:
 394                         ret = gma_backlight_init(dev);
 395                         break;
 396                 }
 397         }
 398
 399         if (ret)
 400                 return ret;
 401 #if 0
 402         /*enable runtime pm at last*/
 403         pm_runtime_enable(&dev->pdev->dev);
 404         pm_runtime_set_active(&dev->pdev->dev);
 405 #endif
 406         /*Intel drm driver load is done, continue doing pvr load*/
 407         return 0;
 408 out_err:
 409         psb_driver_unload(dev);
 410         return ret;
 411 }
 412
 413 static int psb_driver_device_is_agp(struct drm_device *dev)
 414 {
 415         return 0;
 416 }
 417
 418 static inline void get_brightness(struct backlight_device *bd)
 419 {
 420 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
 421         if (bd) {
 422                 bd->props.brightness = bd->ops->get_brightness(bd);
 423                 backlight_update_status(bd);
 424         }
 425 #endif
 426 }
 427
 428 static int psb_dpst_bl_ioctl(struct drm_device *dev, void *data,
 429                        struct drm_file *file_priv)
 430 {
 431         struct drm_psb_private *dev_priv = psb_priv(dev);
 432         uint32_t *arg = data;
 433
 434         dev_priv->blc_adj2 = *arg;
 435         get_brightness(dev_priv->backlight_device);
 436         return 0;
 437 }
 438
 439 static int psb_adb_ioctl(struct drm_device *dev, void *data,
 440                         struct drm_file *file_priv)
 441 {
 442         struct drm_psb_private *dev_priv = psb_priv(dev);
 443         uint32_t *arg = data;
 444
 445         dev_priv->blc_adj1 = *arg;
 446         get_brightness(dev_priv->backlight_device);
 447         return 0;
 448 }
 449
 450 static int psb_gamma_ioctl(struct drm_device *dev, void *data,
 451                            struct drm_file *file_priv)
 452 {
 453         struct drm_psb_dpst_lut_arg *lut_arg = data;
 454         struct drm_mode_object *obj;
 455         struct drm_crtc *crtc;
 456         struct drm_connector *connector;
 457         struct psb_intel_crtc *psb_intel_crtc;
 458         int i = 0;
 459         int32_t obj_id;
 460
 461         obj_id = lut_arg->output_id;
 462         obj = drm_mode_object_find(dev, obj_id, DRM_MODE_OBJECT_CONNECTOR);
 463         if (!obj) {
 464                 dev_dbg(dev->dev, "Invalid Connector object.\n");
 465                 return -EINVAL;
 466         }
 467
 468         connector = obj_to_connector(obj);
 469         crtc = connector->encoder->crtc;
 470         psb_intel_crtc = to_psb_intel_crtc(crtc);
 471
 472         for (i = 0; i < 256; i++)
 473                 psb_intel_crtc->lut_adj[i] = lut_arg->lut[i];
 474
 475         psb_intel_crtc_load_lut(crtc);
 476
 477         return 0;
 478 }
 479
 480 static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
 481                                 struct drm_file *file_priv)
 482 {
 483         uint32_t obj_id;
 484         uint16_t op;
 485         struct drm_mode_modeinfo *umode;
 486         struct drm_display_mode *mode = NULL;
 487         struct drm_psb_mode_operation_arg *arg;
 488         struct drm_mode_object *obj;
 489         struct drm_connector *connector;
 490         struct drm_connector_helper_funcs *connector_funcs;
 491         int ret = 0;
 492         int resp = MODE_OK;
 493
 494         arg = (struct drm_psb_mode_operation_arg *)data;
 495         obj_id = arg->obj_id;
 496         op = arg->operation;
 497
 498         switch (op) {
 499         case PSB_MODE_OPERATION_MODE_VALID:
 500                 umode = &arg->mode;
 501
 502                 mutex_lock(&dev->mode_config.mutex);
 503
 504                 obj = drm_mode_object_find(dev, obj_id,
 505                                         DRM_MODE_OBJECT_CONNECTOR);
 506                 if (!obj) {
 507                         ret = -EINVAL;
 508                         goto mode_op_out;
 509                 }
 510
 511                 connector = obj_to_connector(obj);
 512
 513                 mode = drm_mode_create(dev);
 514                 if (!mode) {
 515                         ret = -ENOMEM;
 516                         goto mode_op_out;
 517                 }
 518
 519                 /* drm_crtc_convert_umode(mode, umode); */
 520                 {
 521                         mode->clock = umode->clock;
 522                         mode->hdisplay = umode->hdisplay;
 523                         mode->hsync_start = umode->hsync_start;
 524                         mode->hsync_end = umode->hsync_end;
 525                         mode->htotal = umode->htotal;
 526                         mode->hskew = umode->hskew;
 527                         mode->vdisplay = umode->vdisplay;
 528                         mode->vsync_start = umode->vsync_start;
 529                         mode->vsync_end = umode->vsync_end;
 530                         mode->vtotal = umode->vtotal;
 531                         mode->vscan = umode->vscan;
 532                         mode->vrefresh = umode->vrefresh;
 533                         mode->flags = umode->flags;
 534                         mode->type = umode->type;
 535                         strncpy(mode->name, umode->name, DRM_DISPLAY_MODE_LEN);
 536                         mode->name[DRM_DISPLAY_MODE_LEN-1] = 0;
 537                 }
 538
 539                 connector_funcs = (struct drm_connector_helper_funcs *)
 540                                    connector->helper_private;
 541
 542                 if (connector_funcs->mode_valid) {
 543                         resp = connector_funcs->mode_valid(connector, mode);
 544                         arg->data = resp;
 545                 }
 546
 547                 /*do some clean up work*/
 548                 if (mode)
 549                         drm_mode_destroy(dev, mode);
 550 mode_op_out:
 551                 mutex_unlock(&dev->mode_config.mutex);
 552                 return ret;
 553
 554         default:
 555                 dev_dbg(dev->dev, "Unsupported psb mode operation\n");
 556                 return -EOPNOTSUPP;
 557         }
 558
 559         return 0;
 560 }
 561
 562 static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
 563                                    struct drm_file *file_priv)
 564 {
 565         struct drm_psb_private *dev_priv = psb_priv(dev);
 566         struct drm_psb_stolen_memory_arg *arg = data;
 567
 568         arg->base = dev_priv->stolen_base;
 569         arg->size = dev_priv->vram_stolen_size;
 570
 571         return 0;
 572 }
 573
 574 static int psb_driver_open(struct drm_device *dev, struct drm_file *priv)
 575 {
 576         return 0;
 577 }
 578
 579 static void psb_driver_close(struct drm_device *dev, struct drm_file *priv)
 580 {
 581 }
 582
 583 static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
 584                                unsigned long arg)
 585 {
 586         struct drm_file *file_priv = filp->private_data;
 587         struct drm_device *dev = file_priv->minor->dev;
 588         struct drm_psb_private *dev_priv = dev->dev_private;
 589         static unsigned int runtime_allowed;
 590
 591         if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
 592                 runtime_allowed++;
 593                 pm_runtime_allow(&dev->pdev->dev);
 594                 dev_priv->rpm_enabled = 1;
 595         }
 596         return drm_ioctl(filp, cmd, arg);
 597         /* FIXME: do we need to wrap the other side of this */
 598 }
 599
 600
 601 /* When a client dies:
 602  *    - Check for and clean up flipped page state
 603  */
 604 static void psb_driver_preclose(struct drm_device *dev, struct drm_file *priv)
 605 {
 606 }
 607
 608 static void psb_remove(struct pci_dev *pdev)
 609 {
 610         struct drm_device *dev = pci_get_drvdata(pdev);
 611         drm_put_dev(dev);
 612 }
 613
 614 static const struct dev_pm_ops psb_pm_ops = {
 615         .resume = gma_power_resume,
 616         .suspend = gma_power_suspend,
 617         .runtime_suspend = psb_runtime_suspend,
 618         .runtime_resume = psb_runtime_resume,
 619         .runtime_idle = psb_runtime_idle,
 620 };
 621
 622 static struct vm_operations_struct psb_gem_vm_ops = {
 623         .fault = psb_gem_fault,
 624         .open = drm_gem_vm_open,
 625         .close = drm_gem_vm_close,
 626 };
 627
 628 static const struct file_operations psb_gem_fops = {
 629         .owner = THIS_MODULE,
 630         .open = drm_open,
 631         .release = drm_release,
 632         .unlocked_ioctl = psb_unlocked_ioctl,
 633         .mmap = drm_gem_mmap,
 634         .poll = drm_poll,
 635         .fasync = drm_fasync,
 636         .read = drm_read,
 637 };
 638
 639 static struct drm_driver driver = {
 640         .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
 641                            DRIVER_IRQ_VBL | DRIVER_MODESET | DRIVER_GEM ,
 642         .load = psb_driver_load,
 643         .unload = psb_driver_unload,
 644
 645         .ioctls = psb_ioctls,
 646         .num_ioctls = DRM_ARRAY_SIZE(psb_ioctls),
 647         .device_is_agp = psb_driver_device_is_agp,
 648         .irq_preinstall = psb_irq_preinstall,
 649         .irq_postinstall = psb_irq_postinstall,
 650         .irq_uninstall = psb_irq_uninstall,
 651         .irq_handler = psb_irq_handler,
 652         .enable_vblank = psb_enable_vblank,
 653         .disable_vblank = psb_disable_vblank,
 654         .get_vblank_counter = psb_get_vblank_counter,
 655         .lastclose = psb_lastclose,
 656         .open = psb_driver_open,
 657         .preclose = psb_driver_preclose,
 658         .postclose = psb_driver_close,
 659         .reclaim_buffers = drm_core_reclaim_buffers,
 660
 661         .gem_init_object = psb_gem_init_object,
 662         .gem_free_object = psb_gem_free_object,
 663         .gem_vm_ops = &psb_gem_vm_ops,
 664         .dumb_create = psb_gem_dumb_create,
 665         .dumb_map_offset = psb_gem_dumb_map_gtt,
 666         .dumb_destroy = psb_gem_dumb_destroy,
 667         .fops = &psb_gem_fops,
 668         .name = DRIVER_NAME,
 669         .desc = DRIVER_DESC,
 670         .date = PSB_DRM_DRIVER_DATE,
 671         .major = PSB_DRM_DRIVER_MAJOR,
 672         .minor = PSB_DRM_DRIVER_MINOR,
 673         .patchlevel = PSB_DRM_DRIVER_PATCHLEVEL
 674 };
 675
 676 static struct pci_driver psb_pci_driver = {
 677         .name = DRIVER_NAME,
 678         .id_table = pciidlist,
 679         .probe = psb_probe,
 680         .remove = psb_remove,
 681         .driver = {
 682                 .pm = &psb_pm_ops,
 683         }
 684 };
 685
 686 static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 687 {
 688         return drm_get_pci_dev(pdev, ent, &driver);
 689 }
 690
 691 static int __init psb_init(void)
 692 {
 693         return drm_pci_init(&driver, &psb_pci_driver);
 694 }
 695
 696 static void __exit psb_exit(void)
 697 {
 698         drm_pci_exit(&driver, &psb_pci_driver);
 699 }
 700
 701 late_initcall(psb_init);
 702 module_exit(psb_exit);
 703
 704 MODULE_AUTHOR("Alan Cox <alan@linux.intel.com> and others");
 705 MODULE_DESCRIPTION(DRIVER_DESC);
 706 MODULE_LICENSE("GPL");