81  * @reserve: pool of memory from which devices reserve entitlement, incl. spare
82  * @excess: pool of excess entitlement not needed for device reserves or spare
83  * @spare: IO memory for device hotplug functionality
96 	size_t spare;  member
138  * IO memory available to all devices.  The spare pool used to service
158 	/* If spare is not fulfilled, the excess pool can not be used. */  in vio_cmo_alloc()
159 	if (vio_cmo.spare >= VIO_CMO_MIN_ENT)  in vio_cmo_alloc()
183  * The spare pool is replenished first from either memory pool, then
211 	/* Spare is a subset of the reserve pool, replenish it first. */  in vio_cmo_dealloc()
212 	spare_needed = VIO_CMO_MIN_ENT - vio_cmo.spare;  in vio_cmo_dealloc()
215 	 * Replenish the spare in the reserve pool from the excess pool.  in vio_cmo_dealloc()
222 		vio_cmo.spare += tmp;  in vio_cmo_dealloc()
229 	 * Replenish the spare in the reserve pool from the reserve pool.  in vio_cmo_dealloc()
231 	 * if needed, and gives it to the spare pool. The amount of used  in vio_cmo_dealloc()
237 		vio_cmo.spare += tmp;  in vio_cmo_dealloc()
272  * Increases in entitlement will be used to fulfill the spare entitlement
291 		/* Fulfill spare allocation */  in vio_cmo_entitlement_update()
292 		if (vio_cmo.spare < VIO_CMO_MIN_ENT) {  in vio_cmo_entitlement_update()
293 			tmp = min(delta, (VIO_CMO_MIN_ENT - vio_cmo.spare));  in vio_cmo_entitlement_update()
294 			vio_cmo.spare += tmp;  in vio_cmo_entitlement_update()
399 	/* Calculate minimum entitlement and fulfill spare */  in vio_cmo_balance()
402 	cmo->spare = min_t(size_t, VIO_CMO_MIN_ENT, (cmo->entitled - cmo->min));  in vio_cmo_balance()
403 	cmo->min += cmo->spare;  in vio_cmo_balance()
410 	avail = cmo->entitled - cmo->spare;  in vio_cmo_balance()
773 		tmp = vio_cmo.spare + vio_cmo.excess.free;  in vio_cmo_bus_probe()
778 				size, (vio_cmo.spare + tmp));  in vio_cmo_bus_probe()
789 		/* Use spare if excess pool was insufficient */  in vio_cmo_bus_probe()
790 		vio_cmo.spare -= size - tmp;  in vio_cmo_bus_probe()
855 		/* Replenish spare from freed reserve pool */  in vio_cmo_bus_remove()
856 		if (viodev->cmo.entitled && (vio_cmo.spare < VIO_CMO_MIN_ENT)) {  in vio_cmo_bus_remove()
858 			                                 vio_cmo.spare));  in vio_cmo_bus_remove()
859 			vio_cmo.spare += tmp;  in vio_cmo_bus_remove()
908 	 * later when spare is reserved.  in vio_cmo_bus_init()
919 	vio_cmo.spare = VIO_CMO_MIN_ENT;  in vio_cmo_bus_init()
920 	vio_cmo.reserve.size = vio_cmo.spare;  in vio_cmo_bus_init()
1025 viobus_cmo_rd_attr(spare);