?? pci.c
字號(hào):
/* * SNI64 specific PCI support for SNI IO. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (c) 1997, 1998, 2000-2003 Silicon Graphics, Inc. All rights reserved. */#include <asm/sn/hcl.h>#include <asm/sn/pci/pcibr_private.h>/* * These routines are only used during sn_pci_init for probing each bus, and * can probably be removed with a little more cleanup now that the SAL routines * work on sn2. */extern vertex_hdl_t devfn_to_vertex(unsigned char bus, unsigned char devfn);int sn_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val){ unsigned long res = 0; vertex_hdl_t device_vertex; device_vertex = devfn_to_vertex(bus->number, devfn); if (!device_vertex) return PCIBIOS_DEVICE_NOT_FOUND; res = pciio_config_get(device_vertex, (unsigned)where, size); *val = (u32)res; return PCIBIOS_SUCCESSFUL;}int sn_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val){ vertex_hdl_t device_vertex; device_vertex = devfn_to_vertex(bus->number, devfn); if (!device_vertex) return PCIBIOS_DEVICE_NOT_FOUND; pciio_config_set(device_vertex, (unsigned)where, size, (uint64_t)val); return PCIBIOS_SUCCESSFUL;}struct pci_ops sn_pci_ops = { .read = sn_read_config, .write = sn_write_config,};
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