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
188 	 * Hollowed-out getclient ioctl to keep some dead old drm tests/tools  in drm_getclient()
373  * Setversion ioctl.
429  * drm_noop - DRM no-op ioctl implemntation
430  * @dev: DRM device for the ioctl
431  * @data: data pointer for the ioctl
432  * @file_priv: DRM file for the ioctl call
436  * checks the result of the ioctl, but doesn't care about the action.
449  * drm_invalid_op - DRM invalid ioctl implemntation
450  * @dev: DRM device for the ioctl
451  * @data: data pointer for the ioctl
452  * @file_priv: DRM file for the ioctl call
455  * functionality where we really don't want to allow userspace to call the ioctl
471  * Copy and IOCTL return string to user space
526  * drm_ioctl_permit - Check ioctl permissions against caller
528  * @flags: ioctl permission flags.
531  * Checks whether the caller is allowed to run an ioctl with the
562 #define DRM_IOCTL_DEF(ioctl, _func, _flags)	\  argument
563 	[DRM_IOCTL_NR(ioctl)] = {		\
564 		.cmd = ioctl,			\
567 		.name = #ioctl			\
571 #define DRM_LEGACY_IOCTL_DEF(ioctl, _func, _flags)  DRM_IOCTL_DEF(ioctl, _func, _flags)  argument
573 #define DRM_LEGACY_IOCTL_DEF(ioctl, _func, _flags) DRM_IOCTL_DEF(ioctl, drm_invalid_op, _flags)  argument
576 /* Ioctl table */
728  * which define IOCTL for use by the display DRM master, but they all predate
735  * First you need to define the structure for your IOCTL in your driver private
748  * Then you need to define your IOCTL number, using one of DRM_IO(), DRM_IOR(),
754  * DRM driver private IOCTL must be in the range from DRM_COMMAND_BASE to
798  * drm_ioctl - ioctl callback implementation for DRM drivers
799  * @filp: file this ioctl is called on
800  * @cmd: ioctl cmd number
803  * Looks up the ioctl function in the DRM core and the driver dispatch table,
815 	const struct drm_ioctl_desc *ioctl = NULL;  in drm_ioctl()  local
832 		/* driver ioctl */  in drm_ioctl()
838 		ioctl = &dev->driver->ioctls[index];  in drm_ioctl()
840 		/* core ioctl */  in drm_ioctl()
844 		ioctl = &drm_ioctls[nr];  in drm_ioctl()
847 	drv_size = _IOC_SIZE(ioctl->cmd);  in drm_ioctl()
849 	if ((cmd & ioctl->cmd & IOC_IN) == 0)  in drm_ioctl()
851 	if ((cmd & ioctl->cmd & IOC_OUT) == 0)  in drm_ioctl()
858 		  file_priv->authenticated, ioctl->name);  in drm_ioctl()
861 	func = ioctl->func;  in drm_ioctl()
887 	retcode = drm_ioctl_kernel(filp, func, kdata, ioctl->flags);  in drm_ioctl()
892 	if (!ioctl)  in drm_ioctl()
893 		DRM_DEBUG("invalid ioctl: comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",  in drm_ioctl()
908  * drm_ioctl_flags - Check for core ioctl and return ioctl permission flags
909  * @nr: ioctl number
910  * @flags: where to return the ioctl permission flags
912  * This ioctl is only used by the vmwgfx driver to augment the access checks
917  * True if the @nr corresponds to a DRM core ioctl number, false otherwise.