drivers/gpu/drm/nouveau/nouveau_drm.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nouveau_drm.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/nouveau_drm.c
Extension
.c
Size
39890 bytes
Lines
1550
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

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

static struct drm_driver
driver_stub = {
	.driver_features = DRIVER_GEM |
			   DRIVER_SYNCOBJ | DRIVER_SYNCOBJ_TIMELINE |
			   DRIVER_GEM_GPUVA |
			   DRIVER_MODESET |
			   DRIVER_RENDER,
	.open = nouveau_drm_open,
	.postclose = nouveau_drm_postclose,

#if defined(CONFIG_DEBUG_FS)
	.debugfs_init = nouveau_drm_debugfs_init,
#endif

	.ioctls = nouveau_ioctls,
	.num_ioctls = ARRAY_SIZE(nouveau_ioctls),
	.fops = &nouveau_driver_fops,

	.gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,

	.dumb_create = nouveau_display_dumb_create,
	.dumb_map_offset = drm_gem_ttm_dumb_map_offset,

	DRM_FBDEV_TTM_DRIVER_OPS,

	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.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 void nouveau_display_options(void)
{
	DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");

	DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
	DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
	DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
	DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
	DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
	DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
	DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
	DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
	DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
	DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
}

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,
	.runtime_suspend = nouveau_pmops_runtime_suspend,
	.runtime_resume = nouveau_pmops_runtime_resume,
	.runtime_idle = nouveau_pmops_runtime_idle,
};

Annotation

Implementation Notes