58  *  - GET_UNIQUE ioctl, implemented by drm_getunique is wrapped up in libdrm
60  *  - The libdrm drmSetBusid function is backed by the SET_UNIQUE ioctl. All
63  *    exclusively use by the SET_VERSION ioctl, because only drm 1.0 (which is
64  *    nerved) allowed userspace to set the busid through the above ioctl.
86  *    name returned by that ioctl. Note that SET_VERSION is not called, which
189 	 * Hollowed-out getclient ioctl to keep some dead old drm tests/tools  in drm_getclient()
374  * Setversion ioctl.
430  * drm_noop - DRM no-op ioctl implemntation
431  * @dev: DRM device for the ioctl
432  * @data: data pointer for the ioctl
433  * @file_priv: DRM file for the ioctl call
437  * checks the result of the ioctl, but doesn't care about the action.
450  * drm_invalid_op - DRM invalid ioctl implemntation
451  * @dev: DRM device for the ioctl
452  * @data: data pointer for the ioctl
453  * @file_priv: DRM file for the ioctl call
456  * functionality where we really don't want to allow userspace to call the ioctl
472  * Copy and IOCTL return string to user space
533  * drm_ioctl_permit - Check ioctl permissions against caller
535  * @flags: ioctl permission flags.
538  * Checks whether the caller is allowed to run an ioctl with the
569 #define DRM_IOCTL_DEF(ioctl, _func, _flags)	\  argument
570 	[DRM_IOCTL_NR(ioctl)] = {		\
571 		.cmd = ioctl,			\
574 		.name = #ioctl			\
578 #define DRM_LEGACY_IOCTL_DEF(ioctl, _func, _flags)  DRM_IOCTL_DEF(ioctl, _func, _flags)  argument
580 #define DRM_LEGACY_IOCTL_DEF(ioctl, _func, _flags) DRM_IOCTL_DEF(ioctl, drm_invalid_op, _flags)  argument
583 /* Ioctl table */
735  * which define IOCTL for use by the display DRM master, but they all predate
742  * First you need to define the structure for your IOCTL in your driver private
755  * Then you need to define your IOCTL number, using one of DRM_IO(), DRM_IOR(),
761  * DRM driver private IOCTL must be in the range from DRM_COMMAND_BASE to
805  * drm_ioctl - ioctl callback implementation for DRM drivers
806  * @filp: file this ioctl is called on
807  * @cmd: ioctl cmd number
810  * Looks up the ioctl function in the DRM core and the driver dispatch table,
822 	const struct drm_ioctl_desc *ioctl = NULL;  in drm_ioctl()  local
842 		/* driver ioctl */  in drm_ioctl()
848 		ioctl = &dev->driver->ioctls[index];  in drm_ioctl()
850 		/* core ioctl */  in drm_ioctl()
854 		ioctl = &drm_ioctls[nr];  in drm_ioctl()
857 	drv_size = _IOC_SIZE(ioctl->cmd);  in drm_ioctl()
859 	if ((cmd & ioctl->cmd & IOC_IN) == 0)  in drm_ioctl()
861 	if ((cmd & ioctl->cmd & IOC_OUT) == 0)  in drm_ioctl()
868 		  file_priv->authenticated, ioctl->name);  in drm_ioctl()
871 	func = ioctl->func;  in drm_ioctl()
897 	retcode = drm_ioctl_kernel(filp, func, kdata, ioctl->flags);  in drm_ioctl()
902 	if (!ioctl)  in drm_ioctl()
903 		DRM_DEBUG("invalid ioctl: comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",  in drm_ioctl()
918  * drm_ioctl_flags - Check for core ioctl and return ioctl permission flags
919  * @nr: ioctl number
920  * @flags: where to return the ioctl permission flags
922  * This ioctl is only used by the vmwgfx driver to augment the access checks
927  * True if the @nr corresponds to a DRM core ioctl number, false otherwise.