Lines Matching refs:viodev
68 struct vio_dev *viodev; member
143 static inline int vio_cmo_alloc(struct vio_dev *viodev, size_t size) in vio_cmo_alloc() argument
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()
187 static inline void vio_cmo_dealloc(struct vio_dev *viodev, size_t size) in vio_cmo_dealloc() argument
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()
278 struct vio_dev *viodev; in vio_cmo_entitlement_update() local
317 viodev = dev_ent->viodev; in vio_cmo_entitlement_update()
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()
342 viodev = dev_ent->viodev; 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()
387 struct vio_dev *viodev; in vio_cmo_balance() local
410 viodev = dev_ent->viodev; 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()
426 viodev = dev_ent->viodev; 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()
464 viodev = dev_ent->viodev; 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()
484 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_alloc_coherent() local
487 if (vio_cmo_alloc(viodev, roundup(size, PAGE_SIZE))) { in vio_dma_iommu_alloc_coherent()
488 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_alloc_coherent()
496 vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); in vio_dma_iommu_alloc_coherent()
497 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_alloc_coherent()
507 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_free_coherent() local
510 vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); in vio_dma_iommu_free_coherent()
518 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_map_page() local
522 if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl)))) in vio_dma_iommu_map_page()
531 vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl))); in vio_dma_iommu_map_page()
533 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_map_page()
542 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_unmap_page() local
546 vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl))); in vio_dma_iommu_unmap_page()
553 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_map_sg() local
562 if (vio_cmo_alloc(viodev, alloc_size)) in vio_dma_iommu_map_sg()
572 vio_cmo_dealloc(viodev, alloc_size); in vio_dma_iommu_map_sg()
576 vio_cmo_dealloc(viodev, alloc_size); in vio_dma_iommu_map_sg()
578 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_map_sg()
587 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_unmap_sg() local
597 vio_cmo_dealloc(viodev, alloc_size); in vio_dma_iommu_unmap_sg()
625 void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) in vio_cmo_set_dev_desired() argument
644 if (viodev == dev_ent->viodev) { in vio_cmo_set_dev_desired()
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()
698 static int vio_cmo_bus_probe(struct vio_dev *viodev) in vio_cmo_bus_probe() argument
701 struct device *dev = &viodev->dev; in vio_cmo_bus_probe()
711 switch (viodev->family) { in vio_cmo_bus_probe()
713 if (of_get_property(viodev->dev.of_node, in vio_cmo_bus_probe()
721 dev_warn(dev, "unknown device family: %d\n", viodev->family); in vio_cmo_bus_probe()
735 viodev->cmo.desired = in vio_cmo_bus_probe()
736 IOMMU_PAGE_ALIGN(viodrv->get_desired_dma(viodev), tbl); 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()
746 dev_ent->viodev = viodev; 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()
807 static void vio_cmo_bus_remove(struct vio_dev *viodev) in vio_cmo_bus_remove() argument
814 if (viodev->cmo.allocated) { in vio_cmo_bus_remove()
815 dev_err(&viodev->dev, "%s: device had %lu bytes of IO " in vio_cmo_bus_remove()
817 __func__, viodev->cmo.allocated); in vio_cmo_bus_remove()
826 if (viodev == dev_ent->viodev) { 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()
878 static void vio_cmo_set_dma_ops(struct vio_dev *viodev) in vio_cmo_set_dma_ops() argument
880 set_dma_ops(&viodev->dev, &vio_dma_mapping_ops); in vio_cmo_set_dma_ops()
946 struct vio_dev *viodev = to_vio_dev(dev); in cmo_allocs_failed_show() local
947 return sprintf(buf, "%d\n", atomic_read(&viodev->cmo.allocs_failed)); in cmo_allocs_failed_show()
953 struct vio_dev *viodev = to_vio_dev(dev); in cmo_allocs_failed_store() local
954 atomic_set(&viodev->cmo.allocs_failed, 0); in cmo_allocs_failed_store()
961 struct vio_dev *viodev = to_vio_dev(dev); in cmo_desired_store() local
969 vio_cmo_set_dev_desired(viodev, new_desired); in cmo_desired_store()
1069 void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) {} in vio_cmo_set_dev_desired() argument
1070 static int vio_cmo_bus_probe(struct vio_dev *viodev) { return 0; } in vio_cmo_bus_probe() argument
1071 static void vio_cmo_bus_remove(struct vio_dev *viodev) {} in vio_cmo_bus_remove() argument
1072 static void vio_cmo_set_dma_ops(struct vio_dev *viodev) {} in vio_cmo_set_dma_ops() argument
1234 struct vio_dev *viodev = to_vio_dev(dev); in vio_bus_probe() local
1242 id = vio_match_device(viodrv->id_table, viodev); in vio_bus_probe()
1244 memset(&viodev->cmo, 0, sizeof(viodev->cmo)); in vio_bus_probe()
1246 error = vio_cmo_bus_probe(viodev); in vio_bus_probe()
1250 error = viodrv->probe(viodev, id); in vio_bus_probe()
1252 vio_cmo_bus_remove(viodev); in vio_bus_probe()
1261 struct vio_dev *viodev = to_vio_dev(dev); in vio_bus_remove() local
1273 ret = viodrv->remove(viodev); in vio_bus_remove()
1276 vio_cmo_bus_remove(viodev); in vio_bus_remove()
1338 struct vio_dev *viodev; in vio_register_device_node() local
1377 viodev = kzalloc(sizeof(struct vio_dev), GFP_KERNEL); in vio_register_device_node()
1378 if (viodev == NULL) { in vio_register_device_node()
1384 viodev->family = family; in vio_register_device_node()
1385 if (viodev->family == VDEVICE) { in vio_register_device_node()
1388 viodev->type = of_node_get_device_type(of_node); in vio_register_device_node()
1389 if (!viodev->type) { in vio_register_device_node()
1402 dev_set_name(&viodev->dev, "%x", unit_address); in vio_register_device_node()
1403 viodev->irq = irq_of_parse_and_map(of_node, 0); in vio_register_device_node()
1404 viodev->unit_address = unit_address; in vio_register_device_node()
1411 viodev->resource_id = of_read_number(prop, 1); in vio_register_device_node()
1413 dev_set_name(&viodev->dev, "%pOFn", of_node); in vio_register_device_node()
1414 viodev->type = dev_name(&viodev->dev); in vio_register_device_node()
1415 viodev->irq = 0; in vio_register_device_node()
1418 viodev->name = of_node->name; in vio_register_device_node()
1419 viodev->dev.of_node = of_node_get(of_node); in vio_register_device_node()
1421 set_dev_node(&viodev->dev, of_node_to_nid(of_node)); in vio_register_device_node()
1424 viodev->dev.parent = &vio_bus_device.dev; in vio_register_device_node()
1425 viodev->dev.bus = &vio_bus_type; in vio_register_device_node()
1426 viodev->dev.release = vio_dev_release; in vio_register_device_node()
1428 if (of_get_property(viodev->dev.of_node, "ibm,my-dma-window", NULL)) { in vio_register_device_node()
1430 vio_cmo_set_dma_ops(viodev); in vio_register_device_node()
1432 set_dma_ops(&viodev->dev, &dma_iommu_ops); in vio_register_device_node()
1434 set_iommu_table_base(&viodev->dev, in vio_register_device_node()
1435 vio_build_iommu_table(viodev)); in vio_register_device_node()
1439 viodev->dev.coherent_dma_mask = DMA_BIT_MASK(64); in vio_register_device_node()
1440 viodev->dev.dma_mask = &viodev->dev.coherent_dma_mask; in vio_register_device_node()
1444 if (device_register(&viodev->dev)) { in vio_register_device_node()
1446 __func__, dev_name(&viodev->dev)); in vio_register_device_node()
1447 put_device(&viodev->dev); in vio_register_device_node()
1451 return viodev; in vio_register_device_node()
1454 kfree(viodev); in vio_register_device_node()
1580 void vio_unregister_device(struct vio_dev *viodev) in vio_unregister_device() argument
1582 device_unregister(&viodev->dev); in vio_unregister_device()
1583 if (viodev->family == VDEVICE) in vio_unregister_device()
1584 irq_dispose_mapping(viodev->irq); in vio_unregister_device()