Lines Matching refs:viodev
67 struct vio_dev *viodev; member
142 static inline int vio_cmo_alloc(struct vio_dev *viodev, size_t size) in vio_cmo_alloc() argument
152 if (viodev->cmo.entitled > viodev->cmo.allocated) in vio_cmo_alloc()
153 reserve_free = viodev->cmo.entitled - viodev->cmo.allocated; in vio_cmo_alloc()
164 viodev->cmo.allocated += size; in vio_cmo_alloc()
186 static inline void vio_cmo_dealloc(struct vio_dev *viodev, size_t size) in vio_cmo_dealloc() argument
199 if (viodev->cmo.allocated > viodev->cmo.entitled) { in vio_cmo_dealloc()
200 excess_freed = min(reserve_freed, (viodev->cmo.allocated - in vio_cmo_dealloc()
201 viodev->cmo.entitled)); in vio_cmo_dealloc()
206 viodev->cmo.allocated -= (reserve_freed + excess_freed); in vio_cmo_dealloc()
232 tmp = min3(spare_needed, reserve_freed, (viodev->cmo.entitled - VIO_CMO_MIN_ENT)); in vio_cmo_dealloc()
235 viodev->cmo.entitled -= tmp; in vio_cmo_dealloc()
277 struct vio_dev *viodev; in vio_cmo_entitlement_update() local
316 viodev = dev_ent->viodev; in vio_cmo_entitlement_update()
317 if ((viodev->cmo.entitled > viodev->cmo.allocated) && in vio_cmo_entitlement_update()
318 (viodev->cmo.entitled > VIO_CMO_MIN_ENT)) in vio_cmo_entitlement_update()
319 avail += viodev->cmo.entitled - in vio_cmo_entitlement_update()
320 max_t(size_t, viodev->cmo.allocated, in vio_cmo_entitlement_update()
341 viodev = dev_ent->viodev; in vio_cmo_entitlement_update()
343 if ((viodev->cmo.entitled > viodev->cmo.allocated) && in vio_cmo_entitlement_update()
344 (viodev->cmo.entitled > VIO_CMO_MIN_ENT)) in vio_cmo_entitlement_update()
345 tmp = viodev->cmo.entitled - in vio_cmo_entitlement_update()
346 max_t(size_t, viodev->cmo.allocated, in vio_cmo_entitlement_update()
348 viodev->cmo.entitled -= min(tmp, delta); in vio_cmo_entitlement_update()
386 struct vio_dev *viodev; in vio_cmo_balance() local
409 viodev = dev_ent->viodev; in vio_cmo_balance()
411 viodev->cmo.entitled = VIO_CMO_MIN_ENT; in vio_cmo_balance()
412 cmo->desired += (viodev->cmo.desired - VIO_CMO_MIN_ENT); in vio_cmo_balance()
413 avail -= max_t(size_t, viodev->cmo.allocated, VIO_CMO_MIN_ENT); in vio_cmo_balance()
425 viodev = dev_ent->viodev; in vio_cmo_balance()
427 if (viodev->cmo.desired <= level) { in vio_cmo_balance()
438 chunk = min(chunk, (viodev->cmo.desired - in vio_cmo_balance()
439 viodev->cmo.entitled)); in vio_cmo_balance()
440 viodev->cmo.entitled += chunk; in vio_cmo_balance()
447 need = max(viodev->cmo.allocated, viodev->cmo.entitled)- in vio_cmo_balance()
448 max(viodev->cmo.allocated, level); in vio_cmo_balance()
463 viodev = dev_ent->viodev; in vio_cmo_balance()
465 if (viodev->cmo.entitled) in vio_cmo_balance()
466 cmo->reserve.size += (viodev->cmo.entitled - in vio_cmo_balance()
469 if (viodev->cmo.allocated > viodev->cmo.entitled) in vio_cmo_balance()
470 need += viodev->cmo.allocated - viodev->cmo.entitled; in vio_cmo_balance()
483 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_alloc_coherent() local
486 if (vio_cmo_alloc(viodev, roundup(size, PAGE_SIZE))) { in vio_dma_iommu_alloc_coherent()
487 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_alloc_coherent()
495 vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); in vio_dma_iommu_alloc_coherent()
496 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_alloc_coherent()
506 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_free_coherent() local
509 vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); in vio_dma_iommu_free_coherent()
517 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_map_page() local
521 if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl)))) in vio_dma_iommu_map_page()
530 vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl))); in vio_dma_iommu_map_page()
532 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_map_page()
541 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_unmap_page() local
545 vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl))); in vio_dma_iommu_unmap_page()
552 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_map_sg() local
561 if (vio_cmo_alloc(viodev, alloc_size)) in vio_dma_iommu_map_sg()
571 vio_cmo_dealloc(viodev, alloc_size); in vio_dma_iommu_map_sg()
575 vio_cmo_dealloc(viodev, alloc_size); in vio_dma_iommu_map_sg()
577 atomic_inc(&viodev->cmo.allocs_failed); in vio_dma_iommu_map_sg()
586 struct vio_dev *viodev = to_vio_dev(dev); in vio_dma_iommu_unmap_sg() local
596 vio_cmo_dealloc(viodev, alloc_size); in vio_dma_iommu_unmap_sg()
622 void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) in vio_cmo_set_dev_desired() argument
641 if (viodev == dev_ent->viodev) { in vio_cmo_set_dev_desired()
651 if (desired >= viodev->cmo.desired) { in vio_cmo_set_dev_desired()
653 vio_cmo.desired += desired - viodev->cmo.desired; in vio_cmo_set_dev_desired()
654 viodev->cmo.desired = desired; in vio_cmo_set_dev_desired()
657 vio_cmo.desired -= viodev->cmo.desired - desired; in vio_cmo_set_dev_desired()
658 viodev->cmo.desired = desired; in vio_cmo_set_dev_desired()
663 if (viodev->cmo.entitled > desired) { in vio_cmo_set_dev_desired()
664 vio_cmo.reserve.size -= viodev->cmo.entitled - desired; in vio_cmo_set_dev_desired()
665 vio_cmo.excess.size += viodev->cmo.entitled - desired; in vio_cmo_set_dev_desired()
671 if (viodev->cmo.allocated < viodev->cmo.entitled) in vio_cmo_set_dev_desired()
672 vio_cmo.excess.free += viodev->cmo.entitled - in vio_cmo_set_dev_desired()
673 max(viodev->cmo.allocated, desired); in vio_cmo_set_dev_desired()
674 viodev->cmo.entitled = desired; in vio_cmo_set_dev_desired()
695 static int vio_cmo_bus_probe(struct vio_dev *viodev) in vio_cmo_bus_probe() argument
698 struct device *dev = &viodev->dev; in vio_cmo_bus_probe()
708 switch (viodev->family) { in vio_cmo_bus_probe()
710 if (of_get_property(viodev->dev.of_node, in vio_cmo_bus_probe()
718 dev_warn(dev, "unknown device family: %d\n", viodev->family); in vio_cmo_bus_probe()
732 viodev->cmo.desired = in vio_cmo_bus_probe()
733 IOMMU_PAGE_ALIGN(viodrv->get_desired_dma(viodev), tbl); in vio_cmo_bus_probe()
734 if (viodev->cmo.desired < VIO_CMO_MIN_ENT) in vio_cmo_bus_probe()
735 viodev->cmo.desired = VIO_CMO_MIN_ENT; in vio_cmo_bus_probe()
743 dev_ent->viodev = viodev; in vio_cmo_bus_probe()
747 viodev->cmo.desired = 0; in vio_cmo_bus_probe()
762 vio_cmo.desired += (viodev->cmo.desired - in vio_cmo_bus_probe()
788 vio_cmo.desired += viodev->cmo.desired; in vio_cmo_bus_probe()
804 static void vio_cmo_bus_remove(struct vio_dev *viodev) in vio_cmo_bus_remove() argument
811 if (viodev->cmo.allocated) { in vio_cmo_bus_remove()
812 dev_err(&viodev->dev, "%s: device had %lu bytes of IO " in vio_cmo_bus_remove()
814 __func__, viodev->cmo.allocated); in vio_cmo_bus_remove()
823 if (viodev == dev_ent->viodev) { in vio_cmo_bus_remove()
834 if (viodev->cmo.entitled) { in vio_cmo_bus_remove()
840 vio_cmo.desired -= (viodev->cmo.desired - VIO_CMO_MIN_ENT); in vio_cmo_bus_remove()
847 viodev->cmo.entitled -= VIO_CMO_MIN_ENT; in vio_cmo_bus_remove()
850 if (viodev->cmo.entitled && (vio_cmo.spare < VIO_CMO_MIN_ENT)) { in vio_cmo_bus_remove()
851 tmp = min(viodev->cmo.entitled, (VIO_CMO_MIN_ENT - in vio_cmo_bus_remove()
854 viodev->cmo.entitled -= tmp; in vio_cmo_bus_remove()
858 vio_cmo.excess.size += viodev->cmo.entitled; in vio_cmo_bus_remove()
859 vio_cmo.excess.free += viodev->cmo.entitled; in vio_cmo_bus_remove()
860 vio_cmo.reserve.size -= viodev->cmo.entitled; in vio_cmo_bus_remove()
867 viodev->cmo.entitled = VIO_CMO_MIN_ENT; in vio_cmo_bus_remove()
868 viodev->cmo.desired = VIO_CMO_MIN_ENT; in vio_cmo_bus_remove()
869 atomic_set(&viodev->cmo.allocs_failed, 0); in vio_cmo_bus_remove()
875 static void vio_cmo_set_dma_ops(struct vio_dev *viodev) in vio_cmo_set_dma_ops() argument
877 set_dma_ops(&viodev->dev, &vio_dma_mapping_ops); in vio_cmo_set_dma_ops()
943 struct vio_dev *viodev = to_vio_dev(dev); in cmo_allocs_failed_show() local
944 return sprintf(buf, "%d\n", atomic_read(&viodev->cmo.allocs_failed)); in cmo_allocs_failed_show()
950 struct vio_dev *viodev = to_vio_dev(dev); in cmo_allocs_failed_store() local
951 atomic_set(&viodev->cmo.allocs_failed, 0); in cmo_allocs_failed_store()
958 struct vio_dev *viodev = to_vio_dev(dev); in cmo_desired_store() local
966 vio_cmo_set_dev_desired(viodev, new_desired); in cmo_desired_store()
1066 void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) {} in vio_cmo_set_dev_desired() argument
1067 static int vio_cmo_bus_probe(struct vio_dev *viodev) { return 0; } in vio_cmo_bus_probe() argument
1068 static void vio_cmo_bus_remove(struct vio_dev *viodev) {} in vio_cmo_bus_remove() argument
1069 static void vio_cmo_set_dma_ops(struct vio_dev *viodev) {} in vio_cmo_set_dma_ops() argument
1229 struct vio_dev *viodev = to_vio_dev(dev); in vio_bus_probe() local
1237 id = vio_match_device(viodrv->id_table, viodev); in vio_bus_probe()
1239 memset(&viodev->cmo, 0, sizeof(viodev->cmo)); in vio_bus_probe()
1241 error = vio_cmo_bus_probe(viodev); in vio_bus_probe()
1245 error = viodrv->probe(viodev, id); in vio_bus_probe()
1247 vio_cmo_bus_remove(viodev); in vio_bus_probe()
1256 struct vio_dev *viodev = to_vio_dev(dev); in vio_bus_remove() local
1268 ret = viodrv->remove(viodev); in vio_bus_remove()
1271 vio_cmo_bus_remove(viodev); in vio_bus_remove()
1329 struct vio_dev *viodev; in vio_register_device_node() local
1368 viodev = kzalloc(sizeof(struct vio_dev), GFP_KERNEL); in vio_register_device_node()
1369 if (viodev == NULL) { in vio_register_device_node()
1375 viodev->family = family; in vio_register_device_node()
1376 if (viodev->family == VDEVICE) { in vio_register_device_node()
1379 viodev->type = of_node_get_device_type(of_node); in vio_register_device_node()
1380 if (!viodev->type) { in vio_register_device_node()
1393 dev_set_name(&viodev->dev, "%x", unit_address); in vio_register_device_node()
1394 viodev->irq = irq_of_parse_and_map(of_node, 0); in vio_register_device_node()
1395 viodev->unit_address = unit_address; in vio_register_device_node()
1402 viodev->resource_id = of_read_number(prop, 1); in vio_register_device_node()
1404 dev_set_name(&viodev->dev, "%pOFn", of_node); in vio_register_device_node()
1405 viodev->type = dev_name(&viodev->dev); in vio_register_device_node()
1406 viodev->irq = 0; in vio_register_device_node()
1409 viodev->name = of_node->name; in vio_register_device_node()
1410 viodev->dev.of_node = of_node_get(of_node); in vio_register_device_node()
1412 set_dev_node(&viodev->dev, of_node_to_nid(of_node)); in vio_register_device_node()
1415 viodev->dev.parent = &vio_bus_device.dev; in vio_register_device_node()
1416 viodev->dev.bus = &vio_bus_type; in vio_register_device_node()
1417 viodev->dev.release = vio_dev_release; in vio_register_device_node()
1419 if (of_get_property(viodev->dev.of_node, "ibm,my-dma-window", NULL)) { in vio_register_device_node()
1421 vio_cmo_set_dma_ops(viodev); in vio_register_device_node()
1423 set_dma_ops(&viodev->dev, &dma_iommu_ops); in vio_register_device_node()
1425 set_iommu_table_base(&viodev->dev, in vio_register_device_node()
1426 vio_build_iommu_table(viodev)); in vio_register_device_node()
1430 viodev->dev.coherent_dma_mask = DMA_BIT_MASK(64); in vio_register_device_node()
1431 viodev->dev.dma_mask = &viodev->dev.coherent_dma_mask; in vio_register_device_node()
1435 if (device_register(&viodev->dev)) { in vio_register_device_node()
1437 __func__, dev_name(&viodev->dev)); in vio_register_device_node()
1438 put_device(&viodev->dev); in vio_register_device_node()
1442 return viodev; in vio_register_device_node()
1445 kfree(viodev); in vio_register_device_node()
1571 void vio_unregister_device(struct vio_dev *viodev) in vio_unregister_device() argument
1573 device_unregister(&viodev->dev); in vio_unregister_device()
1574 if (viodev->family == VDEVICE) in vio_unregister_device()
1575 irq_dispose_mapping(viodev->irq); in vio_unregister_device()