Lines Matching refs:cmo
153 if (viodev->cmo.entitled > viodev->cmo.allocated) in vio_cmo_alloc()
154 reserve_free = viodev->cmo.entitled - viodev->cmo.allocated; in vio_cmo_alloc()
165 viodev->cmo.allocated += size; in vio_cmo_alloc()
200 if (viodev->cmo.allocated > viodev->cmo.entitled) { in vio_cmo_dealloc()
201 excess_freed = min(reserve_freed, (viodev->cmo.allocated - in vio_cmo_dealloc()
202 viodev->cmo.entitled)); in vio_cmo_dealloc()
207 viodev->cmo.allocated -= (reserve_freed + excess_freed); in vio_cmo_dealloc()
233 tmp = min3(spare_needed, reserve_freed, (viodev->cmo.entitled - VIO_CMO_MIN_ENT)); in vio_cmo_dealloc()
236 viodev->cmo.entitled -= tmp; in vio_cmo_dealloc()
318 if ((viodev->cmo.entitled > viodev->cmo.allocated) && in vio_cmo_entitlement_update()
319 (viodev->cmo.entitled > VIO_CMO_MIN_ENT)) in vio_cmo_entitlement_update()
320 avail += viodev->cmo.entitled - in vio_cmo_entitlement_update()
321 max_t(size_t, viodev->cmo.allocated, in vio_cmo_entitlement_update()
344 if ((viodev->cmo.entitled > viodev->cmo.allocated) && in vio_cmo_entitlement_update()
345 (viodev->cmo.entitled > VIO_CMO_MIN_ENT)) in vio_cmo_entitlement_update()
346 tmp = viodev->cmo.entitled - in vio_cmo_entitlement_update()
347 max_t(size_t, viodev->cmo.allocated, in vio_cmo_entitlement_update()
349 viodev->cmo.entitled -= min(tmp, delta); in vio_cmo_entitlement_update()
386 struct vio_cmo *cmo; in vio_cmo_balance() local
393 cmo = container_of(work, struct vio_cmo, balance_q.work); in vio_cmo_balance()
398 cmo->min = vio_cmo_num_OF_devs() * VIO_CMO_MIN_ENT; in vio_cmo_balance()
399 BUG_ON(cmo->min > cmo->entitled); in vio_cmo_balance()
400 cmo->spare = min_t(size_t, VIO_CMO_MIN_ENT, (cmo->entitled - cmo->min)); in vio_cmo_balance()
401 cmo->min += cmo->spare; in vio_cmo_balance()
402 cmo->desired = cmo->min; in vio_cmo_balance()
408 avail = cmo->entitled - cmo->spare; in vio_cmo_balance()
412 viodev->cmo.entitled = VIO_CMO_MIN_ENT; in vio_cmo_balance()
413 cmo->desired += (viodev->cmo.desired - VIO_CMO_MIN_ENT); in vio_cmo_balance()
414 avail -= max_t(size_t, viodev->cmo.allocated, VIO_CMO_MIN_ENT); in vio_cmo_balance()
428 if (viodev->cmo.desired <= level) { in vio_cmo_balance()
439 chunk = min(chunk, (viodev->cmo.desired - in vio_cmo_balance()
440 viodev->cmo.entitled)); in vio_cmo_balance()
441 viodev->cmo.entitled += chunk; in vio_cmo_balance()
448 need = max(viodev->cmo.allocated, viodev->cmo.entitled)- in vio_cmo_balance()
449 max(viodev->cmo.allocated, level); in vio_cmo_balance()
459 cmo->reserve.size = cmo->min; in vio_cmo_balance()
460 cmo->excess.free = 0; in vio_cmo_balance()
461 cmo->excess.size = 0; in vio_cmo_balance()
466 if (viodev->cmo.entitled) in vio_cmo_balance()
467 cmo->reserve.size += (viodev->cmo.entitled - in vio_cmo_balance()
470 if (viodev->cmo.allocated > viodev->cmo.entitled) in vio_cmo_balance()
471 need += viodev->cmo.allocated - viodev->cmo.entitled; in vio_cmo_balance()
473 cmo->excess.size = cmo->entitled - cmo->reserve.size; in vio_cmo_balance()
474 cmo->excess.free = cmo->excess.size - need; in vio_cmo_balance()
488 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_alloc_coherent()
497 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_alloc_coherent()
533 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_map_page()
578 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_map_sg()
654 if (desired >= viodev->cmo.desired) { in vio_cmo_set_dev_desired()
656 vio_cmo.desired += desired - viodev->cmo.desired; in vio_cmo_set_dev_desired()
657 viodev->cmo.desired = desired; in vio_cmo_set_dev_desired()
660 vio_cmo.desired -= viodev->cmo.desired - desired; in vio_cmo_set_dev_desired()
661 viodev->cmo.desired = desired; in vio_cmo_set_dev_desired()
666 if (viodev->cmo.entitled > desired) { in vio_cmo_set_dev_desired()
667 vio_cmo.reserve.size -= viodev->cmo.entitled - desired; in vio_cmo_set_dev_desired()
668 vio_cmo.excess.size += viodev->cmo.entitled - desired; in vio_cmo_set_dev_desired()
674 if (viodev->cmo.allocated < viodev->cmo.entitled) in vio_cmo_set_dev_desired()
675 vio_cmo.excess.free += viodev->cmo.entitled - in vio_cmo_set_dev_desired()
676 max(viodev->cmo.allocated, desired); in vio_cmo_set_dev_desired()
677 viodev->cmo.entitled = desired; in vio_cmo_set_dev_desired()
735 viodev->cmo.desired = in vio_cmo_bus_probe()
737 if (viodev->cmo.desired < VIO_CMO_MIN_ENT) in vio_cmo_bus_probe()
738 viodev->cmo.desired = VIO_CMO_MIN_ENT; in vio_cmo_bus_probe()
750 viodev->cmo.desired = 0; in vio_cmo_bus_probe()
765 vio_cmo.desired += (viodev->cmo.desired - in vio_cmo_bus_probe()
791 vio_cmo.desired += viodev->cmo.desired; in vio_cmo_bus_probe()
814 if (viodev->cmo.allocated) { in vio_cmo_bus_remove()
817 __func__, viodev->cmo.allocated); in vio_cmo_bus_remove()
837 if (viodev->cmo.entitled) { in vio_cmo_bus_remove()
843 vio_cmo.desired -= (viodev->cmo.desired - VIO_CMO_MIN_ENT); in vio_cmo_bus_remove()
850 viodev->cmo.entitled -= VIO_CMO_MIN_ENT; in vio_cmo_bus_remove()
853 if (viodev->cmo.entitled && (vio_cmo.spare < VIO_CMO_MIN_ENT)) { in vio_cmo_bus_remove()
854 tmp = min(viodev->cmo.entitled, (VIO_CMO_MIN_ENT - in vio_cmo_bus_remove()
857 viodev->cmo.entitled -= tmp; in vio_cmo_bus_remove()
861 vio_cmo.excess.size += viodev->cmo.entitled; in vio_cmo_bus_remove()
862 vio_cmo.excess.free += viodev->cmo.entitled; in vio_cmo_bus_remove()
863 vio_cmo.reserve.size -= viodev->cmo.entitled; in vio_cmo_bus_remove()
870 viodev->cmo.entitled = VIO_CMO_MIN_ENT; in vio_cmo_bus_remove()
871 viodev->cmo.desired = VIO_CMO_MIN_ENT; in vio_cmo_bus_remove()
872 atomic_set(&viodev->cmo.allocs_failed, 0); in vio_cmo_bus_remove()
940 return sprintf(buf, "%lu\n", to_vio_dev(dev)->cmo.name); \
947 return sprintf(buf, "%d\n", atomic_read(&viodev->cmo.allocs_failed)); in cmo_allocs_failed_show()
954 atomic_set(&viodev->cmo.allocs_failed, 0); in cmo_allocs_failed_store()
1244 memset(&viodev->cmo, 0, sizeof(viodev->cmo)); in vio_bus_probe()