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 "psb_drv.h" 25 #include "framebuffer.h" 26 #include "psb_reg.h" 27 #include "psb_intel_reg.h" 28 #include "intel_bios.h" 29 #include "mid_bios.h" 30 #include <drm/drm_pciids.h> 31 #include "power.h" 32 #include <linux/cpu.h> 33 #include <linux/notifier.h> 34 #include <linux/spinlock.h> 35 #include <linux/pm_runtime.h> 36 #include <acpi/video.h> 37 #include <linux/module.h> 38 39 static struct drm_driver driver; 40 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent); 41 42 /* 43 * The table below contains a mapping of the PCI vendor ID and the PCI Device ID 44 * to the different groups of PowerVR 5-series chip designs 45 * 46 * 0x8086 = Intel Corporation 47 * 48 * PowerVR SGX535 - Poulsbo - Intel GMA 500, Intel Atom Z5xx 49 * PowerVR SGX535 - Moorestown - Intel GMA 600 50 * PowerVR SGX535 - Oaktrail - Intel GMA 600, Intel Atom Z6xx, E6xx 51 * PowerVR SGX540 - Medfield - Intel Atom Z2460 52 * PowerVR SGX544MP2 - Medfield - 53 * PowerVR SGX545 - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600 54 * PowerVR SGX545 - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700, 55 * N2800 56 */ 57 static DEFINE_PCI_DEVICE_TABLE(pciidlist) = { 58 { 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops }, 59 { 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops }, 60 #if defined(CONFIG_DRM_GMA600) 61 { 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 62 { 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 63 { 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 64 { 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 65 { 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 66 { 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 67 { 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 68 { 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 69 { 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops }, 70 #endif 71 #if defined(CONFIG_DRM_MEDFIELD) 72 { 0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 73 { 0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 74 { 0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 75 { 0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 76 { 0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 77 { 0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 78 { 0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 79 { 0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops }, 80 #endif 81 #if defined(CONFIG_DRM_GMA3600) 82 { 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 83 { 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 84 { 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 85 { 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 86 { 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 87 { 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 88 { 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 89 { 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 90 { 0x8086, 0x0be8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 91 { 0x8086, 0x0be9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 92 { 0x8086, 0x0bea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 93 { 0x8086, 0x0beb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 94 { 0x8086, 0x0bec, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 95 { 0x8086, 0x0bed, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 96 { 0x8086, 0x0bee, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 97 { 0x8086, 0x0bef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops }, 98 #endif 99 { 0, } 100 }; 101 MODULE_DEVICE_TABLE(pci, pciidlist); 102 103 /* 104 * Standard IOCTLs. 105 */ 106 static const struct drm_ioctl_desc psb_ioctls[] = { 107 }; 108 109 static void psb_driver_lastclose(struct drm_device *dev) 110 { 111 int ret; 112 struct drm_psb_private *dev_priv = dev->dev_private; 113 struct psb_fbdev *fbdev = dev_priv->fbdev; 114 115 drm_modeset_lock_all(dev); 116 ret = drm_fb_helper_restore_fbdev_mode(&fbdev->psb_fb_helper); 117 if (ret) 118 DRM_DEBUG("failed to restore crtc mode\n"); 119 drm_modeset_unlock_all(dev); 120 121 return; 122 } 123 124 static int psb_do_init(struct drm_device *dev) 125 { 126 struct drm_psb_private *dev_priv = dev->dev_private; 127 struct psb_gtt *pg = &dev_priv->gtt; 128 129 uint32_t stolen_gtt; 130 131 if (pg->mmu_gatt_start & 0x0FFFFFFF) { 132 dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n"); 133 return -EINVAL; 134 } 135 136 stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4; 137 stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT; 138 stolen_gtt = (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages; 139 140 dev_priv->gatt_free_offset = pg->mmu_gatt_start + 141 (stolen_gtt << PAGE_SHIFT) * 1024; 142 143 spin_lock_init(&dev_priv->irqmask_lock); 144 spin_lock_init(&dev_priv->lock_2d); 145 146 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0); 147 PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1); 148 PSB_RSGX32(PSB_CR_BIF_BANK1); 149 150 /* Do not bypass any MMU access, let them pagefault instead */ 151 PSB_WSGX32((PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_MMU_ER_MASK), 152 PSB_CR_BIF_CTRL); 153 PSB_RSGX32(PSB_CR_BIF_CTRL); 154 155 psb_spank(dev_priv); 156 157 /* mmu_gatt ?? */ 158 PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE); 159 PSB_RSGX32(PSB_CR_BIF_TWOD_REQ_BASE); /* Post */ 160 161 return 0; 162 } 163 164 static int psb_driver_unload(struct drm_device *dev) 165 { 166 struct drm_psb_private *dev_priv = dev->dev_private; 167 168 /* TODO: Kill vblank etc here */ 169 170 if (dev_priv) { 171 if (dev_priv->backlight_device) 172 gma_backlight_exit(dev); 173 psb_modeset_cleanup(dev); 174 175 if (dev_priv->ops->chip_teardown) 176 dev_priv->ops->chip_teardown(dev); 177 178 psb_intel_opregion_fini(dev); 179 180 if (dev_priv->pf_pd) { 181 psb_mmu_free_pagedir(dev_priv->pf_pd); 182 dev_priv->pf_pd = NULL; 183 } 184 if (dev_priv->mmu) { 185 struct psb_gtt *pg = &dev_priv->gtt; 186 187 down_read(&pg->sem); 188 psb_mmu_remove_pfn_sequence( 189 psb_mmu_get_default_pd 190 (dev_priv->mmu), 191 pg->mmu_gatt_start, 192 dev_priv->vram_stolen_size >> PAGE_SHIFT); 193 up_read(&pg->sem); 194 psb_mmu_driver_takedown(dev_priv->mmu); 195 dev_priv->mmu = NULL; 196 } 197 psb_gtt_takedown(dev); 198 if (dev_priv->scratch_page) { 199 set_pages_wb(dev_priv->scratch_page, 1); 200 __free_page(dev_priv->scratch_page); 201 dev_priv->scratch_page = NULL; 202 } 203 if (dev_priv->vdc_reg) { 204 iounmap(dev_priv->vdc_reg); 205 dev_priv->vdc_reg = NULL; 206 } 207 if (dev_priv->sgx_reg) { 208 iounmap(dev_priv->sgx_reg); 209 dev_priv->sgx_reg = NULL; 210 } 211 if (dev_priv->aux_reg) { 212 iounmap(dev_priv->aux_reg); 213 dev_priv->aux_reg = NULL; 214 } 215 if (dev_priv->aux_pdev) 216 pci_dev_put(dev_priv->aux_pdev); 217 218 /* Destroy VBT data */ 219 psb_intel_destroy_bios(dev); 220 221 kfree(dev_priv); 222 dev->dev_private = NULL; 223 } 224 gma_power_uninit(dev); 225 return 0; 226 } 227 228 static int psb_driver_load(struct drm_device *dev, unsigned long flags) 229 { 230 struct drm_psb_private *dev_priv; 231 unsigned long resource_start, resource_len; 232 unsigned long irqflags; 233 int ret = -ENOMEM; 234 struct drm_connector *connector; 235 struct gma_encoder *gma_encoder; 236 struct psb_gtt *pg; 237 238 /* allocating and initializing driver private data */ 239 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL); 240 if (dev_priv == NULL) 241 return -ENOMEM; 242 243 dev_priv->ops = (struct psb_ops *)flags; 244 dev_priv->dev = dev; 245 dev->dev_private = (void *) dev_priv; 246 247 pg = &dev_priv->gtt; 248 249 pci_set_master(dev->pdev); 250 251 dev_priv->num_pipe = dev_priv->ops->pipes; 252 253 resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE); 254 255 dev_priv->vdc_reg = 256 ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE); 257 if (!dev_priv->vdc_reg) 258 goto out_err; 259 260 dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset, 261 PSB_SGX_SIZE); 262 if (!dev_priv->sgx_reg) 263 goto out_err; 264 265 if (IS_MRST(dev)) { 266 dev_priv->aux_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(3, 0)); 267 268 if (dev_priv->aux_pdev) { 269 resource_start = pci_resource_start(dev_priv->aux_pdev, 270 PSB_AUX_RESOURCE); 271 resource_len = pci_resource_len(dev_priv->aux_pdev, 272 PSB_AUX_RESOURCE); 273 dev_priv->aux_reg = ioremap_nocache(resource_start, 274 resource_len); 275 if (!dev_priv->aux_reg) 276 goto out_err; 277 278 DRM_DEBUG_KMS("Found aux vdc"); 279 } else { 280 /* Couldn't find the aux vdc so map to primary vdc */ 281 dev_priv->aux_reg = dev_priv->vdc_reg; 282 DRM_DEBUG_KMS("Couldn't find aux pci device"); 283 } 284 dev_priv->gmbus_reg = dev_priv->aux_reg; 285 } else { 286 dev_priv->gmbus_reg = dev_priv->vdc_reg; 287 } 288 289 psb_intel_opregion_setup(dev); 290 291 ret = dev_priv->ops->chip_setup(dev); 292 if (ret) 293 goto out_err; 294 295 /* Init OSPM support */ 296 gma_power_init(dev); 297 298 ret = -ENOMEM; 299 300 dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO); 301 if (!dev_priv->scratch_page) 302 goto out_err; 303 304 set_pages_uc(dev_priv->scratch_page, 1); 305 306 ret = psb_gtt_init(dev, 0); 307 if (ret) 308 goto out_err; 309 310 dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, 0); 311 if (!dev_priv->mmu) 312 goto out_err; 313 314 dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0); 315 if (!dev_priv->pf_pd) 316 goto out_err; 317 318 ret = psb_do_init(dev); 319 if (ret) 320 return ret; 321 322 /* Add stolen memory to SGX MMU */ 323 down_read(&pg->sem); 324 ret = psb_mmu_insert_pfn_sequence(psb_mmu_get_default_pd(dev_priv->mmu), 325 dev_priv->stolen_base >> PAGE_SHIFT, 326 pg->gatt_start, 327 pg->stolen_size >> PAGE_SHIFT, 0); 328 up_read(&pg->sem); 329 330 psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0); 331 psb_mmu_set_pd_context(dev_priv->pf_pd, 1); 332 333 PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE); 334 PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE); 335 336 acpi_video_register(); 337 338 /* Setup vertical blanking handling */ 339 ret = drm_vblank_init(dev, dev_priv->num_pipe); 340 if (ret) 341 goto out_err; 342 343 /* 344 * Install interrupt handlers prior to powering off SGX or else we will 345 * crash. 346 */ 347 dev_priv->vdc_irq_mask = 0; 348 dev_priv->pipestat[0] = 0; 349 dev_priv->pipestat[1] = 0; 350 dev_priv->pipestat[2] = 0; 351 spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags); 352 PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM); 353 PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R); 354 PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R); 355 spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags); 356 357 drm_irq_install(dev); 358 359 dev->vblank_disable_allowed = true; 360 dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */ 361 dev->driver->get_vblank_counter = psb_get_vblank_counter; 362 363 psb_modeset_init(dev); 364 psb_fbdev_init(dev); 365 drm_kms_helper_poll_init(dev); 366 367 /* Only add backlight support if we have LVDS output */ 368 list_for_each_entry(connector, &dev->mode_config.connector_list, 369 head) { 370 gma_encoder = gma_attached_encoder(connector); 371 372 switch (gma_encoder->type) { 373 case INTEL_OUTPUT_LVDS: 374 case INTEL_OUTPUT_MIPI: 375 ret = gma_backlight_init(dev); 376 break; 377 } 378 } 379 380 if (ret) 381 return ret; 382 psb_intel_opregion_enable_asle(dev); 383 #if 0 384 /* Enable runtime pm at last */ 385 pm_runtime_enable(&dev->pdev->dev); 386 pm_runtime_set_active(&dev->pdev->dev); 387 #endif 388 /* Intel drm driver load is done, continue doing pvr load */ 389 return 0; 390 out_err: 391 psb_driver_unload(dev); 392 return ret; 393 } 394 395 static int psb_driver_device_is_agp(struct drm_device *dev) 396 { 397 return 0; 398 } 399 400 static inline void get_brightness(struct backlight_device *bd) 401 { 402 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE 403 if (bd) { 404 bd->props.brightness = bd->ops->get_brightness(bd); 405 backlight_update_status(bd); 406 } 407 #endif 408 } 409 410 static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd, 411 unsigned long arg) 412 { 413 struct drm_file *file_priv = filp->private_data; 414 struct drm_device *dev = file_priv->minor->dev; 415 struct drm_psb_private *dev_priv = dev->dev_private; 416 static unsigned int runtime_allowed; 417 418 if (runtime_allowed == 1 && dev_priv->is_lvds_on) { 419 runtime_allowed++; 420 pm_runtime_allow(&dev->pdev->dev); 421 dev_priv->rpm_enabled = 1; 422 } 423 return drm_ioctl(filp, cmd, arg); 424 /* FIXME: do we need to wrap the other side of this */ 425 } 426 427 /* 428 * When a client dies: 429 * - Check for and clean up flipped page state 430 */ 431 static void psb_driver_preclose(struct drm_device *dev, struct drm_file *priv) 432 { 433 } 434 435 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 436 { 437 return drm_get_pci_dev(pdev, ent, &driver); 438 } 439 440 441 static void psb_pci_remove(struct pci_dev *pdev) 442 { 443 struct drm_device *dev = pci_get_drvdata(pdev); 444 drm_put_dev(dev); 445 } 446 447 static const struct dev_pm_ops psb_pm_ops = { 448 .resume = gma_power_resume, 449 .suspend = gma_power_suspend, 450 .thaw = gma_power_thaw, 451 .freeze = gma_power_freeze, 452 .restore = gma_power_restore, 453 .runtime_suspend = psb_runtime_suspend, 454 .runtime_resume = psb_runtime_resume, 455 .runtime_idle = psb_runtime_idle, 456 }; 457 458 static const struct vm_operations_struct psb_gem_vm_ops = { 459 .fault = psb_gem_fault, 460 .open = drm_gem_vm_open, 461 .close = drm_gem_vm_close, 462 }; 463 464 static const struct file_operations psb_gem_fops = { 465 .owner = THIS_MODULE, 466 .open = drm_open, 467 .release = drm_release, 468 .unlocked_ioctl = psb_unlocked_ioctl, 469 .mmap = drm_gem_mmap, 470 .poll = drm_poll, 471 .read = drm_read, 472 }; 473 474 static struct drm_driver driver = { 475 .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \ 476 DRIVER_MODESET | DRIVER_GEM, 477 .load = psb_driver_load, 478 .unload = psb_driver_unload, 479 .lastclose = psb_driver_lastclose, 480 .preclose = psb_driver_preclose, 481 482 .num_ioctls = DRM_ARRAY_SIZE(psb_ioctls), 483 .device_is_agp = psb_driver_device_is_agp, 484 .irq_preinstall = psb_irq_preinstall, 485 .irq_postinstall = psb_irq_postinstall, 486 .irq_uninstall = psb_irq_uninstall, 487 .irq_handler = psb_irq_handler, 488 .enable_vblank = psb_enable_vblank, 489 .disable_vblank = psb_disable_vblank, 490 .get_vblank_counter = psb_get_vblank_counter, 491 492 .gem_free_object = psb_gem_free_object, 493 .gem_vm_ops = &psb_gem_vm_ops, 494 495 .dumb_create = psb_gem_dumb_create, 496 .dumb_map_offset = psb_gem_dumb_map_gtt, 497 .dumb_destroy = drm_gem_dumb_destroy, 498 .ioctls = psb_ioctls, 499 .fops = &psb_gem_fops, 500 .name = DRIVER_NAME, 501 .desc = DRIVER_DESC, 502 .date = DRIVER_DATE, 503 .major = DRIVER_MAJOR, 504 .minor = DRIVER_MINOR, 505 .patchlevel = DRIVER_PATCHLEVEL 506 }; 507 508 static struct pci_driver psb_pci_driver = { 509 .name = DRIVER_NAME, 510 .id_table = pciidlist, 511 .probe = psb_pci_probe, 512 .remove = psb_pci_remove, 513 .driver.pm = &psb_pm_ops, 514 }; 515 516 static int __init psb_init(void) 517 { 518 return drm_pci_init(&driver, &psb_pci_driver); 519 } 520 521 static void __exit psb_exit(void) 522 { 523 drm_pci_exit(&driver, &psb_pci_driver); 524 } 525 526 late_initcall(psb_init); 527 module_exit(psb_exit); 528 529 MODULE_AUTHOR(DRIVER_AUTHOR); 530 MODULE_DESCRIPTION(DRIVER_DESC); 531 MODULE_LICENSE(DRIVER_LICENSE); 532