diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh_dev.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh_dev.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh_dev.c b/arch/powerpc/platforms/pseries/eeh_dev.c deleted file mode 100644 index 1efa28f..0000000 --- a/arch/powerpc/platforms/pseries/eeh_dev.c +++ /dev/null @@ -1,112 +0,0 @@ -/* - * The file intends to implement dynamic creation of EEH device, which will - * be bound with OF node and PCI device simutaneously. The EEH devices would - * be foundamental information for EEH core components to work proerly. Besides, - * We have to support multiple situations where dynamic creation of EEH device - * is required: - * - * 1) Before PCI emunation starts, we need create EEH devices according to the - * PCI sensitive OF nodes. - * 2) When PCI emunation is done, we need do the binding between PCI device and - * the associated EEH device. - * 3) DR (Dynamic Reconfiguration) would create PCI sensitive OF node. EEH device - * will be created while PCI sensitive OF node is detected from DR. - * 4) PCI hotplug needs redoing the binding between PCI device and EEH device. If - * PHB is newly inserted, we also need create EEH devices accordingly. - * - * Copyright Benjamin Herrenschmidt & Gavin Shan, IBM Corporation 2012. - * - * 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. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/export.h> -#include <linux/gfp.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/string.h> - -#include <asm/pci-bridge.h> -#include <asm/ppc-pci.h> - -/** - * eeh_dev_init - Create EEH device according to OF node - * @dn: device node - * @data: PHB - * - * It will create EEH device according to the given OF node. The function - * might be called by PCI emunation, DR, PHB hotplug. - */ -void *eeh_dev_init(struct device_node *dn, void *data) -{ - struct pci_controller *phb = data; - struct eeh_dev *edev; - - /* Allocate EEH device */ - edev = kzalloc(sizeof(*edev), GFP_KERNEL); - if (!edev) { - pr_warning("%s: out of memory\n", __func__); - return NULL; - } - - /* Associate EEH device with OF node */ - PCI_DN(dn)->edev = edev; - edev->dn = dn; - edev->phb = phb; - INIT_LIST_HEAD(&edev->list); - - return NULL; -} - -/** - * eeh_dev_phb_init_dynamic - Create EEH devices for devices included in PHB - * @phb: PHB - * - * Scan the PHB OF node and its child association, then create the - * EEH devices accordingly - */ -void eeh_dev_phb_init_dynamic(struct pci_controller *phb) -{ - struct device_node *dn = phb->dn; - - /* EEH PE for PHB */ - eeh_phb_pe_create(phb); - - /* EEH device for PHB */ - eeh_dev_init(dn, phb); - - /* EEH devices for children OF nodes */ - traverse_pci_devices(dn, eeh_dev_init, phb); -} - -/** - * eeh_dev_phb_init - Create EEH devices for devices included in existing PHBs - * - * Scan all the existing PHBs and create EEH devices for their OF - * nodes and their children OF nodes - */ -static int __init eeh_dev_phb_init(void) -{ - struct pci_controller *phb, *tmp; - - list_for_each_entry_safe(phb, tmp, &hose_list, list_node) - eeh_dev_phb_init_dynamic(phb); - - pr_info("EEH: devices created\n"); - - return 0; -} - -core_initcall(eeh_dev_phb_init); |
