80  * @reserve: pool of memory from which devices reserve entitlement, incl. spare
93 	struct vio_cmo_pool reserve;  member
153 	/* Determine the amount of free entitlement available in reserve */  in vio_cmo_alloc()
183  * the reserve pool is used to reduce device entitlement, the excess
184  * pool is used to increase the reserve pool toward the desired entitlement
210 	/* Spare is a subset of the reserve pool, replenish it first. */  in vio_cmo_dealloc()
214 	 * Replenish the spare in the reserve pool from the excess pool.  in vio_cmo_dealloc()
215 	 * This moves entitlement into the reserve pool.  in vio_cmo_dealloc()
220 		vio_cmo.reserve.size += tmp;  in vio_cmo_dealloc()
228 	 * Replenish the spare in the reserve pool from the reserve pool.  in vio_cmo_dealloc()
244 	 * Increase the reserve pool until the desired allocation is met.  in vio_cmo_dealloc()
245 	 * Move an allocation freed from the excess pool into the reserve  in vio_cmo_dealloc()
248 	if (excess_freed && (vio_cmo.desired > vio_cmo.reserve.size)) {  in vio_cmo_dealloc()
249 		tmp = min(excess_freed, (vio_cmo.desired - vio_cmo.reserve.size));  in vio_cmo_dealloc()
252 		vio_cmo.reserve.size += tmp;  in vio_cmo_dealloc()
294 			vio_cmo.reserve.size += tmp;  in vio_cmo_entitlement_update()
377  * Upon completion sizes of the reserve and excess pools are calculated.
459 	/* Calculate new reserve and excess pool sizes */  in vio_cmo_balance()
460 	cmo->reserve.size = cmo->min;  in vio_cmo_balance()
466 		/* Calculated reserve size above the minimum entitlement */  in vio_cmo_balance()
468 			cmo->reserve.size += (viodev->cmo.entitled -  in vio_cmo_balance()
474 	cmo->excess.size = cmo->entitled - cmo->reserve.size;  in vio_cmo_balance()
666 		 * any reserve memory in the change region to the excess pool.  in vio_cmo_set_dev_desired()
669 			vio_cmo.reserve.size -= viodev->cmo.entitled - desired;  in vio_cmo_set_dev_desired()
672 			 * If entitlement moving from the reserve pool to the  in vio_cmo_set_dev_desired()
761 	 * the reserve pool.  in vio_cmo_bus_probe()
786 		vio_cmo.reserve.size += tmp;  in vio_cmo_bus_probe()
848 		 * Save min allocation for device in reserve as long  in vio_cmo_bus_remove()
854 		/* Replenish spare from freed reserve pool */  in vio_cmo_bus_remove()
862 		/* Remaining reserve goes to excess pool */  in vio_cmo_bus_remove()
865 		vio_cmo.reserve.size -= viodev->cmo.entitled;  in vio_cmo_bus_remove()
888  * Set up the reserve and excess entitlement pools based on available
890  * require entitlement in the reserve pool.
919 	vio_cmo.reserve.size = vio_cmo.spare;  in vio_cmo_bus_init()
920 	vio_cmo.reserve.size += (vio_cmo_num_OF_devs() *  in vio_cmo_bus_init()
922 	if (vio_cmo.reserve.size > vio_cmo.entitled) {  in vio_cmo_bus_init()
929 	vio_cmo.excess.size = vio_cmo.entitled - vio_cmo.reserve.size;  in vio_cmo_bus_init()
931 	vio_cmo.min = vio_cmo.reserve.size;  in vio_cmo_bus_init()
932 	vio_cmo.desired = vio_cmo.reserve.size;  in vio_cmo_bus_init()
1028 viobus_cmo_pool_rd_attr(reserve, size);