drivers/gpu/drm/nouveau/nouveau_drm.c - LeafOS-Devices/android_kernel_samsung_gta4xl - Gitiles

 /*
  * Copyright 2012 Red Hat Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: Ben Skeggs
  */

 #include <linux/console.h>
 #include <linux/module.h>
 #include <linux/pci.h>

 #include <core/device.h>
 #include <core/client.h>
 #include <core/gpuobj.h>
 #include <core/class.h>

 #include <engine/device.h>
 #include <engine/disp.h>
 #include <engine/fifo.h>

 #include <subdev/vm.h>

 #include "nouveau_drm.h"
 #include "nouveau_dma.h"
 #include "nouveau_ttm.h"
 #include "nouveau_gem.h"
 #include "nouveau_agp.h"
 #include "nouveau_vga.h"
 #include "nouveau_pm.h"
 #include "nouveau_acpi.h"
 #include "nouveau_bios.h"
 #include "nouveau_ioctl.h"
 #include "nouveau_abi16.h"
 #include "nouveau_fbcon.h"
 #include "nouveau_fence.h"
 #include "nouveau_debugfs.h"

 MODULE_PARM_DESC(config, "option string to pass to driver core");
 static char *nouveau_config;
 module_param_named(config, nouveau_config, charp, 0400);

 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 static char *nouveau_debug;
 module_param_named(debug, nouveau_debug, charp, 0400);

 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 static int nouveau_noaccel = 0;
 module_param_named(noaccel, nouveau_noaccel, int, 0400);

 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 		          "0 = disabled, 1 = enabled, 2 = headless)");
 int nouveau_modeset = -1;
 module_param_named(modeset, nouveau_modeset, int, 0400);

 static struct drm_driver driver;

 static int
 nouveau_drm_vblank_handler(struct nouveau_eventh *event, int head)
 {
 	struct nouveau_drm *drm =
 		container_of(event, struct nouveau_drm, vblank[head]);
 	drm_handle_vblank(drm->dev, head);
 	return NVKM_EVENT_KEEP;
 }

 static int
 nouveau_drm_vblank_enable(struct drm_device *dev, int head)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_disp *pdisp = nouveau_disp(drm->device);

 	if (WARN_ON_ONCE(head > ARRAY_SIZE(drm->vblank)))
 		return -EIO;
 	WARN_ON_ONCE(drm->vblank[head].func);
 	drm->vblank[head].func = nouveau_drm_vblank_handler;
 	nouveau_event_get(pdisp->vblank, head, &drm->vblank[head]);
 	return 0;
 }

 static void
 nouveau_drm_vblank_disable(struct drm_device *dev, int head)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_disp *pdisp = nouveau_disp(drm->device);
 	if (drm->vblank[head].func)
 		nouveau_event_put(pdisp->vblank, head, &drm->vblank[head]);
 	else
 		WARN_ON_ONCE(1);
 	drm->vblank[head].func = NULL;
 }

 static u64
 nouveau_name(struct pci_dev *pdev)
 {
 	u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 	name |= pdev->bus->number << 16;
 	name |= PCI_SLOT(pdev->devfn) << 8;
 	return name | PCI_FUNC(pdev->devfn);
 }

 static int
 nouveau_cli_create(struct pci_dev *pdev, const char *name,
 		   int size, void **pcli)
 {
 	struct nouveau_cli *cli;
 	int ret;

 	*pcli = NULL;
 	ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config,
 				     nouveau_debug, size, pcli);
 	cli = *pcli;
 	if (ret) {
 		if (cli)
 			nouveau_client_destroy(&cli->base);
 		*pcli = NULL;
 		return ret;
 	}

 	mutex_init(&cli->mutex);
 	return 0;
 }

 static void
 nouveau_cli_destroy(struct nouveau_cli *cli)
 {
 	struct nouveau_object *client = nv_object(cli);
 	nouveau_vm_ref(NULL, &cli->base.vm, NULL);
 	nouveau_client_fini(&cli->base, false);
 	atomic_set(&client->refcount, 1);
 	nouveau_object_ref(NULL, &client);
 }

 static void
 nouveau_accel_fini(struct nouveau_drm *drm)
 {
 	nouveau_gpuobj_ref(NULL, &drm->notify);
 	nouveau_channel_del(&drm->channel);
 	nouveau_channel_del(&drm->cechan);
 	if (drm->fence)
 		nouveau_fence(drm)->dtor(drm);
 }

 static void
 nouveau_accel_init(struct nouveau_drm *drm)
 {
 	struct nouveau_device *device = nv_device(drm->device);
 	struct nouveau_object *object;
 	u32 arg0, arg1;
 	int ret;

 	if (nouveau_noaccel || !nouveau_fifo(device) /*XXX*/)
 		return;

 	/* initialise synchronisation routines */
 	if      (device->card_type < NV_10) ret = nv04_fence_create(drm);
 	else if (device->chipset   <  0x17) ret = nv10_fence_create(drm);
 	else if (device->card_type < NV_50) ret = nv17_fence_create(drm);
 	else if (device->chipset   <  0x84) ret = nv50_fence_create(drm);
 	else if (device->card_type < NV_C0) ret = nv84_fence_create(drm);
 	else                                ret = nvc0_fence_create(drm);
 	if (ret) {
 		NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 		nouveau_accel_fini(drm);
 		return;
 	}

 	if (device->card_type >= NV_E0) {
 		ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
 					  NVDRM_CHAN + 1,
 					  NVE0_CHANNEL_IND_ENGINE_CE0 |
 					  NVE0_CHANNEL_IND_ENGINE_CE1, 0,
 					  &drm->cechan);
 		if (ret)
 			NV_ERROR(drm, "failed to create ce channel, %d\n", ret);

 		arg0 = NVE0_CHANNEL_IND_ENGINE_GR;
 		arg1 = 1;
 	} else
 	if (device->chipset >= 0xa3 &&
 	    device->chipset != 0xaa &&
 	    device->chipset != 0xac) {
 		ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
 					  NVDRM_CHAN + 1, NvDmaFB, NvDmaTT,
 					  &drm->cechan);
 		if (ret)
 			NV_ERROR(drm, "failed to create ce channel, %d\n", ret);

 		arg0 = NvDmaFB;
 		arg1 = NvDmaTT;
 	} else {
 		arg0 = NvDmaFB;
 		arg1 = NvDmaTT;
 	}

 	ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE, NVDRM_CHAN,
 				  arg0, arg1, &drm->channel);
 	if (ret) {
 		NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 		nouveau_accel_fini(drm);
 		return;
 	}

 	if (device->card_type < NV_C0) {
 		ret = nouveau_gpuobj_new(drm->device, NULL, 32, 0, 0,
 					&drm->notify);
 		if (ret) {
 			NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 			nouveau_accel_fini(drm);
 			return;
 		}

 		ret = nouveau_object_new(nv_object(drm),
 					 drm->channel->handle, NvNotify0,
 					 0x003d, &(struct nv_dma_class) {
 						.flags = NV_DMA_TARGET_VRAM |
 							 NV_DMA_ACCESS_RDWR,
 						.start = drm->notify->addr,
 						.limit = drm->notify->addr + 31
 						}, sizeof(struct nv_dma_class),
 					 &object);
 		if (ret) {
 			nouveau_accel_fini(drm);
 			return;
 		}
 	}


 	nouveau_bo_move_init(drm);
 }

 static int nouveau_drm_probe(struct pci_dev *pdev,
 			     const struct pci_device_id *pent)
 {
 	struct nouveau_device *device;
 	struct apertures_struct *aper;
 	bool boot = false;
 	int ret;

 	/* remove conflicting drivers (vesafb, efifb etc) */
 	aper = alloc_apertures(3);
 	if (!aper)
 		return -ENOMEM;

 	aper->ranges[0].base = pci_resource_start(pdev, 1);
 	aper->ranges[0].size = pci_resource_len(pdev, 1);
 	aper->count = 1;

 	if (pci_resource_len(pdev, 2)) {
 		aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 		aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 		aper->count++;
 	}

 	if (pci_resource_len(pdev, 3)) {
 		aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 		aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 		aper->count++;
 	}

 #ifdef CONFIG_X86
 	boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 #endif
 	remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 	kfree(aper);

 	ret = nouveau_device_create(pdev, nouveau_name(pdev), pci_name(pdev),
 				    nouveau_config, nouveau_debug, &device);
 	if (ret)
 		return ret;

 	pci_set_master(pdev);

 	ret = drm_get_pci_dev(pdev, pent, &driver);
 	if (ret) {
 		nouveau_object_ref(NULL, (struct nouveau_object **)&device);
 		return ret;
 	}

 	return 0;
 }

 static int
 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 {
 	struct pci_dev *pdev = dev->pdev;
 	struct nouveau_device *device;
 	struct nouveau_drm *drm;
 	int ret;

 	ret = nouveau_cli_create(pdev, "DRM", sizeof(*drm), (void**)&drm);
 	if (ret)
 		return ret;

 	dev->dev_private = drm;
 	drm->dev = dev;

 	INIT_LIST_HEAD(&drm->clients);
 	spin_lock_init(&drm->tile.lock);

 	/* make sure AGP controller is in a consistent state before we
 	 * (possibly) execute vbios init tables (see nouveau_agp.h)
 	 */
 	if (drm_pci_device_is_agp(dev) && dev->agp) {
 		/* dummy device object, doesn't init anything, but allows
 		 * agp code access to registers
 		 */
 		ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT,
 					 NVDRM_DEVICE, 0x0080,
 					 &(struct nv_device_class) {
 						.device = ~0,
 						.disable =
 						 ~(NV_DEVICE_DISABLE_MMIO |
 						   NV_DEVICE_DISABLE_IDENTIFY),
 						.debug0 = ~0,
 					 }, sizeof(struct nv_device_class),
 					 &drm->device);
 		if (ret)
 			goto fail_device;

 		nouveau_agp_reset(drm);
 		nouveau_object_del(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE);
 	}

 	ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE,
 				 0x0080, &(struct nv_device_class) {
 					.device = ~0,
 					.disable = 0,
 					.debug0 = 0,
 				 }, sizeof(struct nv_device_class),
 				 &drm->device);
 	if (ret)
 		goto fail_device;

 	/* workaround an odd issue on nvc1 by disabling the device's
 	 * nosnoop capability.  hopefully won't cause issues until a
 	 * better fix is found - assuming there is one...
 	 */
 	device = nv_device(drm->device);
 	if (nv_device(drm->device)->chipset == 0xc1)
 		nv_mask(device, 0x00088080, 0x00000800, 0x00000000);

 	nouveau_vga_init(drm);
 	nouveau_agp_init(drm);

 	if (device->card_type >= NV_50) {
 		ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
 				     0x1000, &drm->client.base.vm);
 		if (ret)
 			goto fail_device;
 	}

 	ret = nouveau_ttm_init(drm);
 	if (ret)
 		goto fail_ttm;

 	ret = nouveau_bios_init(dev);
 	if (ret)
 		goto fail_bios;

 	ret = nouveau_display_create(dev);
 	if (ret)
 		goto fail_dispctor;

 	if (dev->mode_config.num_crtc) {
 		ret = nouveau_display_init(dev);
 		if (ret)
 			goto fail_dispinit;
 	}

 	nouveau_pm_init(dev);

 	nouveau_accel_init(drm);
 	nouveau_fbcon_init(dev);
 	return 0;

 fail_dispinit:
 	nouveau_display_destroy(dev);
 fail_dispctor:
 	nouveau_bios_takedown(dev);
 fail_bios:
 	nouveau_ttm_fini(drm);
 fail_ttm:
 	nouveau_agp_fini(drm);
 	nouveau_vga_fini(drm);
 fail_device:
 	nouveau_cli_destroy(&drm->client);
 	return ret;
 }

 static int
 nouveau_drm_unload(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);

 	nouveau_fbcon_fini(dev);
 	nouveau_accel_fini(drm);

 	nouveau_pm_fini(dev);

 	if (dev->mode_config.num_crtc)
 		nouveau_display_fini(dev);
 	nouveau_display_destroy(dev);

 	nouveau_bios_takedown(dev);

 	nouveau_ttm_fini(drm);
 	nouveau_agp_fini(drm);
 	nouveau_vga_fini(drm);

 	nouveau_cli_destroy(&drm->client);
 	return 0;
 }

 static void
 nouveau_drm_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_object *device;

 	device = drm->client.base.device;
 	drm_put_dev(dev);

 	nouveau_object_ref(NULL, &device);
 	nouveau_object_debug();
 }

 static int
 nouveau_do_suspend(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_cli *cli;
 	int ret;

 	if (dev->mode_config.num_crtc) {
 		NV_INFO(drm, "suspending fbcon...\n");
 		nouveau_fbcon_set_suspend(dev, 1);

 		NV_INFO(drm, "suspending display...\n");
 		ret = nouveau_display_suspend(dev);
 		if (ret)
 			return ret;
 	}

 	NV_INFO(drm, "evicting buffers...\n");
 	ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);

 	NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 	if (drm->cechan) {
 		ret = nouveau_channel_idle(drm->cechan);
 		if (ret)
 			return ret;
 	}

 	if (drm->channel) {
 		ret = nouveau_channel_idle(drm->channel);
 		if (ret)
 			return ret;
 	}

 	NV_INFO(drm, "suspending client object trees...\n");
 	if (drm->fence && nouveau_fence(drm)->suspend) {
 		if (!nouveau_fence(drm)->suspend(drm))
 			return -ENOMEM;
 	}

 	list_for_each_entry(cli, &drm->clients, head) {
 		ret = nouveau_client_fini(&cli->base, true);
 		if (ret)
 			goto fail_client;
 	}

 	NV_INFO(drm, "suspending kernel object tree...\n");
 	ret = nouveau_client_fini(&drm->client.base, true);
 	if (ret)
 		goto fail_client;

 	nouveau_agp_fini(drm);
 	return 0;

 fail_client:
 	list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 		nouveau_client_init(&cli->base);
 	}

 	if (dev->mode_config.num_crtc) {
 		NV_INFO(drm, "resuming display...\n");
 		nouveau_display_resume(dev);
 	}
 	return ret;
 }

 int nouveau_pmops_suspend(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
 	int ret;

 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;

 	ret = nouveau_do_suspend(drm_dev);
 	if (ret)
 		return ret;

 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);

 	return 0;
 }

 static int
 nouveau_do_resume(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_cli *cli;

 	NV_INFO(drm, "re-enabling device...\n");

 	nouveau_agp_reset(drm);

 	NV_INFO(drm, "resuming kernel object tree...\n");
 	nouveau_client_init(&drm->client.base);
 	nouveau_agp_init(drm);

 	NV_INFO(drm, "resuming client object trees...\n");
 	if (drm->fence && nouveau_fence(drm)->resume)
 		nouveau_fence(drm)->resume(drm);

 	list_for_each_entry(cli, &drm->clients, head) {
 		nouveau_client_init(&cli->base);
 	}

 	nouveau_run_vbios_init(dev);
 	nouveau_pm_resume(dev);

 	if (dev->mode_config.num_crtc) {
 		NV_INFO(drm, "resuming display...\n");
 		nouveau_display_resume(dev);
 	}
 	return 0;
 }

 int nouveau_pmops_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);
 	int ret;

 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;

 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 	ret = pci_enable_device(pdev);
 	if (ret)
 		return ret;
 	pci_set_master(pdev);

 	return nouveau_do_resume(drm_dev);
 }

 static int nouveau_pmops_freeze(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);

 	return nouveau_do_suspend(drm_dev);
 }

 static int nouveau_pmops_thaw(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct drm_device *drm_dev = pci_get_drvdata(pdev);

 	return nouveau_do_resume(drm_dev);
 }


 static int
 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 {
 	struct pci_dev *pdev = dev->pdev;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_cli *cli;
 	char name[32], tmpname[TASK_COMM_LEN];
 	int ret;

 	get_task_comm(tmpname, current);
 	snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));

 	ret = nouveau_cli_create(pdev, name, sizeof(*cli), (void **)&cli);
 	if (ret)
 		return ret;

 	if (nv_device(drm->device)->card_type >= NV_50) {
 		ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
 				     0x1000, &cli->base.vm);
 		if (ret) {
 			nouveau_cli_destroy(cli);
 			return ret;
 		}
 	}

 	fpriv->driver_priv = cli;

 	mutex_lock(&drm->client.mutex);
 	list_add(&cli->head, &drm->clients);
 	mutex_unlock(&drm->client.mutex);
 	return 0;
 }

 static void
 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 {
 	struct nouveau_cli *cli = nouveau_cli(fpriv);
 	struct nouveau_drm *drm = nouveau_drm(dev);

 	if (cli->abi16)
 		nouveau_abi16_fini(cli->abi16);

 	mutex_lock(&drm->client.mutex);
 	list_del(&cli->head);
 	mutex_unlock(&drm->client.mutex);
 }

 static void
 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 {
 	struct nouveau_cli *cli = nouveau_cli(fpriv);
 	nouveau_cli_destroy(cli);
 }

 static struct drm_ioctl_desc
 nouveau_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH),
 };

 static const struct file_operations
 nouveau_driver_fops = {
 	.owner = THIS_MODULE,
 	.open = drm_open,
 	.release = drm_release,
 	.unlocked_ioctl = drm_ioctl,
 	.mmap = nouveau_ttm_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
 	.read = drm_read,
 #if defined(CONFIG_COMPAT)
 	.compat_ioctl = nouveau_compat_ioctl,
 #endif
 	.llseek = noop_llseek,
 };

 static struct drm_driver
 driver = {
 	.driver_features =
 		DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG |
 		DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME,

 	.load = nouveau_drm_load,
 	.unload = nouveau_drm_unload,
 	.open = nouveau_drm_open,
 	.preclose = nouveau_drm_preclose,
 	.postclose = nouveau_drm_postclose,
 	.lastclose = nouveau_vga_lastclose,

 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = nouveau_debugfs_init,
 	.debugfs_cleanup = nouveau_debugfs_takedown,
 #endif

 	.get_vblank_counter = drm_vblank_count,
 	.enable_vblank = nouveau_drm_vblank_enable,
 	.disable_vblank = nouveau_drm_vblank_disable,

 	.ioctls = nouveau_ioctls,
 	.fops = &nouveau_driver_fops,

 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_export = drm_gem_prime_export,
 	.gem_prime_import = drm_gem_prime_import,
 	.gem_prime_pin = nouveau_gem_prime_pin,
 	.gem_prime_unpin = nouveau_gem_prime_unpin,
 	.gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 	.gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 	.gem_prime_vmap = nouveau_gem_prime_vmap,
 	.gem_prime_vunmap = nouveau_gem_prime_vunmap,

 	.gem_init_object = nouveau_gem_object_new,
 	.gem_free_object = nouveau_gem_object_del,
 	.gem_open_object = nouveau_gem_object_open,
 	.gem_close_object = nouveau_gem_object_close,

 	.dumb_create = nouveau_display_dumb_create,
 	.dumb_map_offset = nouveau_display_dumb_map_offset,
 	.dumb_destroy = nouveau_display_dumb_destroy,

 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 #ifdef GIT_REVISION
 	.date = GIT_REVISION,
 #else
 	.date = DRIVER_DATE,
 #endif
 	.major = DRIVER_MAJOR,
 	.minor = DRIVER_MINOR,
 	.patchlevel = DRIVER_PATCHLEVEL,
 };

 static struct pci_device_id
 nouveau_drm_pci_table[] = {
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 		.class = PCI_BASE_CLASS_DISPLAY << 16,
 		.class_mask  = 0xff << 16,
 	},
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 		.class = PCI_BASE_CLASS_DISPLAY << 16,
 		.class_mask  = 0xff << 16,
 	},
 	{}
 };

 static const struct dev_pm_ops nouveau_pm_ops = {
 	.suspend = nouveau_pmops_suspend,
 	.resume = nouveau_pmops_resume,
 	.freeze = nouveau_pmops_freeze,
 	.thaw = nouveau_pmops_thaw,
 	.poweroff = nouveau_pmops_freeze,
 	.restore = nouveau_pmops_resume,
 };

 static struct pci_driver
 nouveau_drm_pci_driver = {
 	.name = "nouveau",
 	.id_table = nouveau_drm_pci_table,
 	.probe = nouveau_drm_probe,
 	.remove = nouveau_drm_remove,
 	.driver.pm = &nouveau_pm_ops,
 };

 static int __init
 nouveau_drm_init(void)
 {
 	driver.num_ioctls = ARRAY_SIZE(nouveau_ioctls);

 	if (nouveau_modeset == -1) {
 #ifdef CONFIG_VGA_CONSOLE
 		if (vgacon_text_force())
 			nouveau_modeset = 0;
 #endif
 	}

 	if (!nouveau_modeset)
 		return 0;

 	nouveau_register_dsm_handler();
 	return drm_pci_init(&driver, &nouveau_drm_pci_driver);
 }

 static void __exit
 nouveau_drm_exit(void)
 {
 	if (!nouveau_modeset)
 		return;

 	drm_pci_exit(&driver, &nouveau_drm_pci_driver);
 	nouveau_unregister_dsm_handler();
 }

 module_init(nouveau_drm_init);
 module_exit(nouveau_drm_exit);

 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
	/*
	* Copyright 2012 Red Hat Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	* Authors: Ben Skeggs
	*/

	#include <linux/console.h>
	#include <linux/module.h>
	#include <linux/pci.h>

	#include <core/device.h>
	#include <core/client.h>
	#include <core/gpuobj.h>
	#include <core/class.h>

	#include <engine/device.h>
	#include <engine/disp.h>
	#include <engine/fifo.h>

	#include <subdev/vm.h>

	#include "nouveau_drm.h"
	#include "nouveau_dma.h"
	#include "nouveau_ttm.h"
	#include "nouveau_gem.h"
	#include "nouveau_agp.h"
	#include "nouveau_vga.h"
	#include "nouveau_pm.h"
	#include "nouveau_acpi.h"
	#include "nouveau_bios.h"
	#include "nouveau_ioctl.h"
	#include "nouveau_abi16.h"
	#include "nouveau_fbcon.h"
	#include "nouveau_fence.h"
	#include "nouveau_debugfs.h"

	MODULE_PARM_DESC(config, "option string to pass to driver core");
	static char *nouveau_config;
	module_param_named(config, nouveau_config, charp, 0400);

	MODULE_PARM_DESC(debug, "debug string to pass to driver core");
	static char *nouveau_debug;
	module_param_named(debug, nouveau_debug, charp, 0400);

	MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
	static int nouveau_noaccel = 0;
	module_param_named(noaccel, nouveau_noaccel, int, 0400);

	MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
	"0 = disabled, 1 = enabled, 2 = headless)");
	int nouveau_modeset = -1;
	module_param_named(modeset, nouveau_modeset, int, 0400);

	static struct drm_driver driver;

	static int
	nouveau_drm_vblank_handler(struct nouveau_eventh *event, int head)
	{
	struct nouveau_drm *drm =
	container_of(event, struct nouveau_drm, vblank[head]);
	drm_handle_vblank(drm->dev, head);
	return NVKM_EVENT_KEEP;
	}

	static int
	nouveau_drm_vblank_enable(struct drm_device *dev, int head)
	{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_disp *pdisp = nouveau_disp(drm->device);

	if (WARN_ON_ONCE(head > ARRAY_SIZE(drm->vblank)))
	return -EIO;
	WARN_ON_ONCE(drm->vblank[head].func);
	drm->vblank[head].func = nouveau_drm_vblank_handler;
	nouveau_event_get(pdisp->vblank, head, &drm->vblank[head]);
	return 0;
	}

	static void
	nouveau_drm_vblank_disable(struct drm_device *dev, int head)
	{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_disp *pdisp = nouveau_disp(drm->device);
	if (drm->vblank[head].func)
	nouveau_event_put(pdisp->vblank, head, &drm->vblank[head]);
	else
	WARN_ON_ONCE(1);
	drm->vblank[head].func = NULL;
	}

	static u64
	nouveau_name(struct pci_dev *pdev)
	{
	u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
	name \|= pdev->bus->number << 16;
	name \|= PCI_SLOT(pdev->devfn) << 8;
	return name \| PCI_FUNC(pdev->devfn);
	}

	static int
	nouveau_cli_create(struct pci_dev pdev, const char name,
	int size, void **pcli)
	{
	struct nouveau_cli *cli;
	int ret;

	*pcli = NULL;
	ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config,
	nouveau_debug, size, pcli);
	cli = *pcli;
	if (ret) {
	if (cli)
	nouveau_client_destroy(&cli->base);
	*pcli = NULL;
	return ret;
	}

	mutex_init(&cli->mutex);
	return 0;
	}

	static void
	nouveau_cli_destroy(struct nouveau_cli *cli)
	{
	struct nouveau_object *client = nv_object(cli);
	nouveau_vm_ref(NULL, &cli->base.vm, NULL);
	nouveau_client_fini(&cli->base, false);
	atomic_set(&client->refcount, 1);
	nouveau_object_ref(NULL, &client);
	}

	static void
	nouveau_accel_fini(struct nouveau_drm *drm)
	{
	nouveau_gpuobj_ref(NULL, &drm->notify);
	nouveau_channel_del(&drm->channel);
	nouveau_channel_del(&drm->cechan);
	if (drm->fence)
	nouveau_fence(drm)->dtor(drm);
	}

	static void
	nouveau_accel_init(struct nouveau_drm *drm)
	{
	struct nouveau_device *device = nv_device(drm->device);
	struct nouveau_object *object;
	u32 arg0, arg1;
	int ret;

	if (nouveau_noaccel \|\| !nouveau_fifo(device) /XXX/)
	return;

	/* initialise synchronisation routines */
	if (device->card_type < NV_10) ret = nv04_fence_create(drm);
	else if (device->chipset < 0x17) ret = nv10_fence_create(drm);
	else if (device->card_type < NV_50) ret = nv17_fence_create(drm);
	else if (device->chipset < 0x84) ret = nv50_fence_create(drm);
	else if (device->card_type < NV_C0) ret = nv84_fence_create(drm);
	else ret = nvc0_fence_create(drm);
	if (ret) {
	NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
	nouveau_accel_fini(drm);
	return;
	}

	if (device->card_type >= NV_E0) {
	ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
	NVDRM_CHAN + 1,
	NVE0_CHANNEL_IND_ENGINE_CE0 \|
	NVE0_CHANNEL_IND_ENGINE_CE1, 0,
	&drm->cechan);
	if (ret)
	NV_ERROR(drm, "failed to create ce channel, %d\n", ret);

	arg0 = NVE0_CHANNEL_IND_ENGINE_GR;
	arg1 = 1;
	} else
	if (device->chipset >= 0xa3 &&
	device->chipset != 0xaa &&
	device->chipset != 0xac) {
	ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
	NVDRM_CHAN + 1, NvDmaFB, NvDmaTT,
	&drm->cechan);
	if (ret)
	NV_ERROR(drm, "failed to create ce channel, %d\n", ret);

	arg0 = NvDmaFB;
	arg1 = NvDmaTT;
	} else {
	arg0 = NvDmaFB;
	arg1 = NvDmaTT;
	}

	ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE, NVDRM_CHAN,
	arg0, arg1, &drm->channel);
	if (ret) {
	NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
	nouveau_accel_fini(drm);
	return;
	}

	if (device->card_type < NV_C0) {
	ret = nouveau_gpuobj_new(drm->device, NULL, 32, 0, 0,
	&drm->notify);
	if (ret) {
	NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
	nouveau_accel_fini(drm);
	return;
	}

	ret = nouveau_object_new(nv_object(drm),
	drm->channel->handle, NvNotify0,
	0x003d, &(struct nv_dma_class) {
	.flags = NV_DMA_TARGET_VRAM \|
	NV_DMA_ACCESS_RDWR,
	.start = drm->notify->addr,
	.limit = drm->notify->addr + 31
	}, sizeof(struct nv_dma_class),
	&object);
	if (ret) {
	nouveau_accel_fini(drm);
	return;
	}
	}


	nouveau_bo_move_init(drm);
	}

	static int nouveau_drm_probe(struct pci_dev *pdev,
	const struct pci_device_id *pent)
	{
	struct nouveau_device *device;
	struct apertures_struct *aper;
	bool boot = false;
	int ret;

	/* remove conflicting drivers (vesafb, efifb etc) */
	aper = alloc_apertures(3);
	if (!aper)
	return -ENOMEM;

	aper->ranges[0].base = pci_resource_start(pdev, 1);
	aper->ranges[0].size = pci_resource_len(pdev, 1);
	aper->count = 1;

	if (pci_resource_len(pdev, 2)) {
	aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
	aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
	aper->count++;
	}

	if (pci_resource_len(pdev, 3)) {
	aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
	aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
	aper->count++;
	}

	#ifdef CONFIG_X86
	boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
	#endif
	remove_conflicting_framebuffers(aper, "nouveaufb", boot);
	kfree(aper);

	ret = nouveau_device_create(pdev, nouveau_name(pdev), pci_name(pdev),
	nouveau_config, nouveau_debug, &device);
	if (ret)
	return ret;

	pci_set_master(pdev);

	ret = drm_get_pci_dev(pdev, pent, &driver);
	if (ret) {
	nouveau_object_ref(NULL, (struct nouveau_object **)&device);
	return ret;
	}

	return 0;
	}

	static int
	nouveau_drm_load(struct drm_device *dev, unsigned long flags)
	{
	struct pci_dev *pdev = dev->pdev;
	struct nouveau_device *device;
	struct nouveau_drm *drm;
	int ret;

	ret = nouveau_cli_create(pdev, "DRM", sizeof(drm), (void*)&drm);
	if (ret)
	return ret;

	dev->dev_private = drm;
	drm->dev = dev;

	INIT_LIST_HEAD(&drm->clients);
	spin_lock_init(&drm->tile.lock);

	/* make sure AGP controller is in a consistent state before we
	* (possibly) execute vbios init tables (see nouveau_agp.h)
	*/
	if (drm_pci_device_is_agp(dev) && dev->agp) {
	/* dummy device object, doesn't init anything, but allows
	* agp code access to registers
	*/
	ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT,
	NVDRM_DEVICE, 0x0080,
	&(struct nv_device_class) {
	.device = ~0,
	.disable =
	~(NV_DEVICE_DISABLE_MMIO \|
	NV_DEVICE_DISABLE_IDENTIFY),
	.debug0 = ~0,
	}, sizeof(struct nv_device_class),
	&drm->device);
	if (ret)
	goto fail_device;

	nouveau_agp_reset(drm);
	nouveau_object_del(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE);
	}

	ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE,
	0x0080, &(struct nv_device_class) {
	.device = ~0,
	.disable = 0,
	.debug0 = 0,
	}, sizeof(struct nv_device_class),
	&drm->device);
	if (ret)
	goto fail_device;

	/* workaround an odd issue on nvc1 by disabling the device's
	* nosnoop capability. hopefully won't cause issues until a
	* better fix is found - assuming there is one...
	*/
	device = nv_device(drm->device);
	if (nv_device(drm->device)->chipset == 0xc1)
	nv_mask(device, 0x00088080, 0x00000800, 0x00000000);

	nouveau_vga_init(drm);
	nouveau_agp_init(drm);

	if (device->card_type >= NV_50) {
	ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
	0x1000, &drm->client.base.vm);
	if (ret)
	goto fail_device;
	}

	ret = nouveau_ttm_init(drm);
	if (ret)
	goto fail_ttm;

	ret = nouveau_bios_init(dev);
	if (ret)
	goto fail_bios;

	ret = nouveau_display_create(dev);
	if (ret)
	goto fail_dispctor;

	if (dev->mode_config.num_crtc) {
	ret = nouveau_display_init(dev);
	if (ret)
	goto fail_dispinit;
	}

	nouveau_pm_init(dev);

	nouveau_accel_init(drm);
	nouveau_fbcon_init(dev);
	return 0;

	fail_dispinit:
	nouveau_display_destroy(dev);
	fail_dispctor:
	nouveau_bios_takedown(dev);
	fail_bios:
	nouveau_ttm_fini(drm);
	fail_ttm:
	nouveau_agp_fini(drm);
	nouveau_vga_fini(drm);
	fail_device:
	nouveau_cli_destroy(&drm->client);
	return ret;
	}

	static int
	nouveau_drm_unload(struct drm_device *dev)
	{
	struct nouveau_drm *drm = nouveau_drm(dev);

	nouveau_fbcon_fini(dev);
	nouveau_accel_fini(drm);

	nouveau_pm_fini(dev);

	if (dev->mode_config.num_crtc)
	nouveau_display_fini(dev);
	nouveau_display_destroy(dev);

	nouveau_bios_takedown(dev);

	nouveau_ttm_fini(drm);
	nouveau_agp_fini(drm);
	nouveau_vga_fini(drm);

	nouveau_cli_destroy(&drm->client);
	return 0;
	}

	static void
	nouveau_drm_remove(struct pci_dev *pdev)
	{
	struct drm_device *dev = pci_get_drvdata(pdev);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_object *device;

	device = drm->client.base.device;
	drm_put_dev(dev);

	nouveau_object_ref(NULL, &device);
	nouveau_object_debug();
	}

	static int
	nouveau_do_suspend(struct drm_device *dev)
	{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_cli *cli;
	int ret;

	if (dev->mode_config.num_crtc) {
	NV_INFO(drm, "suspending fbcon...\n");
	nouveau_fbcon_set_suspend(dev, 1);

	NV_INFO(drm, "suspending display...\n");
	ret = nouveau_display_suspend(dev);
	if (ret)
	return ret;
	}

	NV_INFO(drm, "evicting buffers...\n");
	ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);

	NV_INFO(drm, "waiting for kernel channels to go idle...\n");
	if (drm->cechan) {
	ret = nouveau_channel_idle(drm->cechan);
	if (ret)
	return ret;
	}

	if (drm->channel) {
	ret = nouveau_channel_idle(drm->channel);
	if (ret)
	return ret;
	}

	NV_INFO(drm, "suspending client object trees...\n");
	if (drm->fence && nouveau_fence(drm)->suspend) {
	if (!nouveau_fence(drm)->suspend(drm))
	return -ENOMEM;
	}

	list_for_each_entry(cli, &drm->clients, head) {
	ret = nouveau_client_fini(&cli->base, true);
	if (ret)
	goto fail_client;
	}

	NV_INFO(drm, "suspending kernel object tree...\n");
	ret = nouveau_client_fini(&drm->client.base, true);
	if (ret)
	goto fail_client;

	nouveau_agp_fini(drm);
	return 0;

	fail_client:
	list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
	nouveau_client_init(&cli->base);
	}

	if (dev->mode_config.num_crtc) {
	NV_INFO(drm, "resuming display...\n");
	nouveau_display_resume(dev);
	}
	return ret;
	}

	int nouveau_pmops_suspend(struct device *dev)
	{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	int ret;

	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
	return 0;

	ret = nouveau_do_suspend(drm_dev);
	if (ret)
	return ret;

	pci_save_state(pdev);
	pci_disable_device(pdev);
	pci_set_power_state(pdev, PCI_D3hot);

	return 0;
	}

	static int
	nouveau_do_resume(struct drm_device *dev)
	{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_cli *cli;

	NV_INFO(drm, "re-enabling device...\n");

	nouveau_agp_reset(drm);

	NV_INFO(drm, "resuming kernel object tree...\n");
	nouveau_client_init(&drm->client.base);
	nouveau_agp_init(drm);

	NV_INFO(drm, "resuming client object trees...\n");
	if (drm->fence && nouveau_fence(drm)->resume)
	nouveau_fence(drm)->resume(drm);

	list_for_each_entry(cli, &drm->clients, head) {
	nouveau_client_init(&cli->base);
	}

	nouveau_run_vbios_init(dev);
	nouveau_pm_resume(dev);

	if (dev->mode_config.num_crtc) {
	NV_INFO(drm, "resuming display...\n");
	nouveau_display_resume(dev);
	}
	return 0;
	}

	int nouveau_pmops_resume(struct device *dev)
	{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);
	int ret;

	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
	return 0;

	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
	ret = pci_enable_device(pdev);
	if (ret)
	return ret;
	pci_set_master(pdev);

	return nouveau_do_resume(drm_dev);
	}

	static int nouveau_pmops_freeze(struct device *dev)
	{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return nouveau_do_suspend(drm_dev);
	}

	static int nouveau_pmops_thaw(struct device *dev)
	{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *drm_dev = pci_get_drvdata(pdev);

	return nouveau_do_resume(drm_dev);
	}


	static int
	nouveau_drm_open(struct drm_device dev, struct drm_file fpriv)
	{
	struct pci_dev *pdev = dev->pdev;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_cli *cli;
	char name[32], tmpname[TASK_COMM_LEN];
	int ret;

	get_task_comm(tmpname, current);
	snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));

	ret = nouveau_cli_create(pdev, name, sizeof(cli), (void *)&cli);
	if (ret)
	return ret;

	if (nv_device(drm->device)->card_type >= NV_50) {
	ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
	0x1000, &cli->base.vm);
	if (ret) {
	nouveau_cli_destroy(cli);
	return ret;
	}
	}

	fpriv->driver_priv = cli;

	mutex_lock(&drm->client.mutex);
	list_add(&cli->head, &drm->clients);
	mutex_unlock(&drm->client.mutex);
	return 0;
	}

	static void
	nouveau_drm_preclose(struct drm_device dev, struct drm_file fpriv)
	{
	struct nouveau_cli *cli = nouveau_cli(fpriv);
	struct nouveau_drm *drm = nouveau_drm(dev);

	if (cli->abi16)
	nouveau_abi16_fini(cli->abi16);

	mutex_lock(&drm->client.mutex);
	list_del(&cli->head);
	mutex_unlock(&drm->client.mutex);
	}

	static void
	nouveau_drm_postclose(struct drm_device dev, struct drm_file fpriv)
	{
	struct nouveau_cli *cli = nouveau_cli(fpriv);
	nouveau_cli_destroy(cli);
	}

	static struct drm_ioctl_desc
	nouveau_ioctls[] = {
	DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED\|DRM_AUTH\|DRM_MASTER\|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED\|DRM_AUTH),
	DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED\|DRM_AUTH),
	};

	static const struct file_operations
	nouveau_driver_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.mmap = nouveau_ttm_mmap,
	.poll = drm_poll,
	.fasync = drm_fasync,
	.read = drm_read,
	#if defined(CONFIG_COMPAT)
	.compat_ioctl = nouveau_compat_ioctl,
	#endif
	.llseek = noop_llseek,
	};

	static struct drm_driver
	driver = {
	.driver_features =
	DRIVER_USE_AGP \| DRIVER_PCI_DMA \| DRIVER_SG \|
	DRIVER_GEM \| DRIVER_MODESET \| DRIVER_PRIME,

	.load = nouveau_drm_load,
	.unload = nouveau_drm_unload,
	.open = nouveau_drm_open,
	.preclose = nouveau_drm_preclose,
	.postclose = nouveau_drm_postclose,
	.lastclose = nouveau_vga_lastclose,

	#if defined(CONFIG_DEBUG_FS)
	.debugfs_init = nouveau_debugfs_init,
	.debugfs_cleanup = nouveau_debugfs_takedown,
	#endif

	.get_vblank_counter = drm_vblank_count,
	.enable_vblank = nouveau_drm_vblank_enable,
	.disable_vblank = nouveau_drm_vblank_disable,

	.ioctls = nouveau_ioctls,
	.fops = &nouveau_driver_fops,

	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
	.gem_prime_export = drm_gem_prime_export,
	.gem_prime_import = drm_gem_prime_import,
	.gem_prime_pin = nouveau_gem_prime_pin,
	.gem_prime_unpin = nouveau_gem_prime_unpin,
	.gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
	.gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
	.gem_prime_vmap = nouveau_gem_prime_vmap,
	.gem_prime_vunmap = nouveau_gem_prime_vunmap,

	.gem_init_object = nouveau_gem_object_new,
	.gem_free_object = nouveau_gem_object_del,
	.gem_open_object = nouveau_gem_object_open,
	.gem_close_object = nouveau_gem_object_close,

	.dumb_create = nouveau_display_dumb_create,
	.dumb_map_offset = nouveau_display_dumb_map_offset,
	.dumb_destroy = nouveau_display_dumb_destroy,

	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	#ifdef GIT_REVISION
	.date = GIT_REVISION,
	#else
	.date = DRIVER_DATE,
	#endif
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,
	};

	static struct pci_device_id
	nouveau_drm_pci_table[] = {
	{
	PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
	.class = PCI_BASE_CLASS_DISPLAY << 16,
	.class_mask = 0xff << 16,
	},
	{
	PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
	.class = PCI_BASE_CLASS_DISPLAY << 16,
	.class_mask = 0xff << 16,
	},
	{}
	};

	static const struct dev_pm_ops nouveau_pm_ops = {
	.suspend = nouveau_pmops_suspend,
	.resume = nouveau_pmops_resume,
	.freeze = nouveau_pmops_freeze,
	.thaw = nouveau_pmops_thaw,
	.poweroff = nouveau_pmops_freeze,
	.restore = nouveau_pmops_resume,
	};

	static struct pci_driver
	nouveau_drm_pci_driver = {
	.name = "nouveau",
	.id_table = nouveau_drm_pci_table,
	.probe = nouveau_drm_probe,
	.remove = nouveau_drm_remove,
	.driver.pm = &nouveau_pm_ops,
	};

	static int __init
	nouveau_drm_init(void)
	{
	driver.num_ioctls = ARRAY_SIZE(nouveau_ioctls);

	if (nouveau_modeset == -1) {
	#ifdef CONFIG_VGA_CONSOLE
	if (vgacon_text_force())
	nouveau_modeset = 0;
	#endif
	}

	if (!nouveau_modeset)
	return 0;

	nouveau_register_dsm_handler();
	return drm_pci_init(&driver, &nouveau_drm_pci_driver);
	}

	static void __exit
	nouveau_drm_exit(void)
	{
	if (!nouveau_modeset)
	return;

	drm_pci_exit(&driver, &nouveau_drm_pci_driver);
	nouveau_unregister_dsm_handler();
	}

	module_init(nouveau_drm_init);
	module_exit(nouveau_drm_exit);

	MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
	MODULE_AUTHOR(DRIVER_AUTHOR);
	MODULE_DESCRIPTION(DRIVER_DESC);
	MODULE_LICENSE("GPL and additional rights");