diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/pci_dlpar.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/pci_dlpar.c | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 561917fa54a8..8c77ec7980de 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PCI Dynamic LPAR, PCI Hot Plug and PCI EEH recovery code * for RPA-compliant PPC64 platform. @@ -6,27 +7,11 @@ * * Updates, 2005, John Rose <johnrose@austin.ibm.com> * Updates, 2005, Linas Vepstas <linas@austin.ibm.com> - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/pci.h> #include <linux/export.h> +#include <linux/node.h> #include <asm/pci-bridge.h> #include <asm/ppc-pci.h> #include <asm/firmware.h> @@ -37,9 +22,22 @@ struct pci_controller *init_phb_dynamic(struct device_node *dn) { struct pci_controller *phb; + int nid; pr_debug("PCI: Initializing new hotplug PHB %pOF\n", dn); + nid = of_node_to_nid(dn); + if (likely((nid) >= 0)) { + if (!node_online(nid)) { + if (register_node(nid)) { + pr_err("PCI: Failed to register node %d\n", nid); + } else { + update_numa_distance(dn); + node_set_online(nid); + } + } + } + phb = pcibios_alloc_controller(dn); if (!phb) return NULL; @@ -49,11 +47,15 @@ struct pci_controller *init_phb_dynamic(struct device_node *dn) pci_devs_phb_init_dynamic(phb); + pseries_msi_allocate_domains(phb); + + ppc_iommu_register_device(phb); + /* Create EEH devices for the PHB */ - eeh_dev_phb_init_dynamic(phb); + eeh_phb_pe_create(phb); if (dn->child) - eeh_add_device_tree_early(PCI_DN(dn)); + pseries_eeh_init_edev_recursive(PCI_DN(dn)); pcibios_scan_phb(phb); pcibios_finish_adding_to_bus(phb->bus); @@ -66,6 +68,7 @@ EXPORT_SYMBOL_GPL(init_phb_dynamic); int remove_phb_dynamic(struct pci_controller *phb) { struct pci_bus *b = phb->bus; + struct pci_host_bridge *host_bridge = to_pci_host_bridge(b->bridge); struct resource *res; int rc, i; @@ -89,10 +92,18 @@ int remove_phb_dynamic(struct pci_controller *phb) } } + ppc_iommu_unregister_device(phb); + + pseries_msi_free_domains(phb); + + /* Keep a reference so phb isn't freed yet */ + get_device(&host_bridge->dev); + /* Remove the PCI bus and unregister the bridge device from sysfs */ phb->bus = NULL; pci_remove_bus(b); - device_unregister(b->bridge); + host_bridge->bus = NULL; + device_unregister(&host_bridge->dev); /* Now release the IO resource */ if (res->flags & IORESOURCE_IO) @@ -111,6 +122,7 @@ int remove_phb_dynamic(struct pci_controller *phb) * the pcibios_free_controller_deferred() callback; * see pseries_root_bridge_prepare(). */ + put_device(&host_bridge->dev); return 0; } |