Drivers: gpu: remove __dev* attributes.

[linux/fpc-iii.git] / drivers / gpu / drm / nouveau / nouveau_drm.c

/*
 * 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 <subdev/device.h>
#include <subdev/vm.h>

#include "nouveau_drm.h"
#include "nouveau_irq.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"

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 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;

        ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config,
                                     nouveau_debug, size, pcli);
        cli = *pcli;
        if (ret)
                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)
                return;

        /* initialise synchronisation routines */
        if      (device->card_type < NV_10) ret = nv04_fence_create(drm);
        else if (device->card_type < NV_50) ret = nv10_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 {
                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_irq_init(dev);
        if (ret)
                goto fail_irq;

        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_irq_fini(dev);
fail_irq:
        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_irq_fini(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();
}

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);

        if (drm->fence && nouveau_fence(drm)->suspend) {
                if (!nouveau_fence(drm)->suspend(drm))
                        return -ENOMEM;
        }

        NV_INFO(drm, "suspending client object trees...\n");
        list_for_each_entry(cli, &drm->clients, head) {
                ret = nouveau_client_fini(&cli->base, true);
                if (ret)
                        goto fail_client;
        }

        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;
}

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 client object trees...\n");
        nouveau_client_init(&drm->client.base);
        nouveau_agp_init(drm);

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

        if (drm->fence && nouveau_fence(drm)->resume)
                nouveau_fence(drm)->resume(drm);

        nouveau_run_vbios_init(dev);
        nouveau_irq_postinstall(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[16];
        int ret;

        snprintf(name, sizeof(name), "%d", 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_HAVE_IRQ | DRIVER_IRQ_SHARED | 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,

        .irq_preinstall = nouveau_irq_preinstall,
        .irq_postinstall = nouveau_irq_postinstall,
        .irq_uninstall = nouveau_irq_uninstall,
        .irq_handler = nouveau_irq_handler,

        .get_vblank_counter = drm_vblank_count,
        .enable_vblank = nouveau_vblank_enable,
        .disable_vblank = nouveau_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 = nouveau_gem_prime_export,
        .gem_prime_import = nouveau_gem_prime_import,

        .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");