drm_block         699 include/uapi/drm/drm.h #define DRM_IOCTL_BLOCK			DRM_IOWR(0x12, struct drm_block)
drm_block         700 include/uapi/drm/drm.h #define DRM_IOCTL_UNBLOCK		DRM_IOWR(0x13, struct drm_block)
drm_block         830 include/uapi/drm/drm.h typedef struct drm_block drm_block_t;