11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Compaq Hot Plug Controller Driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1995,2001 Compaq Computer Corporation 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2001 IBM Corp. 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * All rights reserved. 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or (at 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * your option) any later version. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, but 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WITHOUT ANY WARRANTY; without even the implied warranty of 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NON INFRINGEMENT. See the GNU General Public License for more 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * details. 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Send feedback to <greg@kroah.com> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/workqueue.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/proc_fs.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 367a54f25cef6c763f16c9fd49ae382de162147873Greg Kroah-Hartman#include <linux/pci_hotplug.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "../pci.h" 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "cpqphp.h" 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "cpqphp_nvram.h" 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu8 cpqhp_nic_irq; 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu8 cpqhp_disk_irq; 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u16 unused_IRQ; 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * detect_HRT_floating_pointer 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * find the Hot Plug Resource Table in the specified region of memory. 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *detect_HRT_floating_pointer(void __iomem *begin, void __iomem *end) 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *fp; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *endp; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 temp1, temp2, temp3, temp4; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int status = 0; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds endp = (end - sizeof(struct hrt) + 1); 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (fp = begin; fp <= endp; fp += 16) { 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp1 = readb(fp + SIG0); 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp2 = readb(fp + SIG1); 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp3 = readb(fp + SIG2); 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp4 = readb(fp + SIG3); 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp1 == '$' && 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp2 == 'H' && 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp3 == 'R' && 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp4 == 'T') { 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = 1; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!status) 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fp = NULL; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Discovered Hotplug Resource Table at %p\n", fp); 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fp; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 84861fefbf550d41e7a4f44584f3ec35977fa08bf1Alex Chiangint cpqhp_configure_device (struct controller* ctrl, struct pci_func* func) 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char bus; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *child; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev == NULL) 9112a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang func->pci_dev = pci_get_bus_and_slot(func->bus,PCI_DEVFN(func->device, func->function)); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No pci device, we need to create it then */ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev == NULL) { 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("INFO: pci_dev still null\n"); 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num = pci_scan_slot(ctrl->pci_dev->bus, PCI_DEVFN(func->device, func->function)); 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (num) 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_add_devices(ctrl->pci_dev->bus); 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10112a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang func->pci_dev = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, func->function)); 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev == NULL) { 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("ERROR: pci_dev still null\n"); 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_read_config_byte(func->pci_dev, PCI_SECONDARY_BUS, &bus); 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds child = (struct pci_bus*) pci_add_new_bus(func->pci_dev->bus, (func->pci_dev), bus); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_do_scan_bus(child); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11412a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang pci_dev_put(func->pci_dev); 11512a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 120861fefbf550d41e7a4f44584f3ec35977fa08bf1Alex Chiangint cpqhp_unconfigure_device(struct pci_func* func) 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int j; 123861fefbf550d41e7a4f44584f3ec35977fa08bf1Alex Chiang 12466bef8c059015ba2b36bb5759080336feb01e680Harvey Harrison dbg("%s: bus/dev/func = %x/%x/%x\n", __func__, func->bus, func->device, func->function); 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j=0; j<8 ; j++) { 12712a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang struct pci_dev* temp = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, j)); 12812a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang if (temp) { 12912a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang pci_dev_put(temp); 130210647af897af8ef2d00828aa2a6b1b42206aae6Yinghai Lu pci_stop_and_remove_bus_device(temp); 13112a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang } 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_RefinedAccessConfig(struct pci_bus *bus, unsigned int devfn, u8 offset, u32 *value) 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 vendID = 0; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_bus_read_config_dword (bus, devfn, PCI_VENDOR_ID, &vendID) == -1) 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vendID == 0xffffffff) 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pci_bus_read_config_dword (bus, devfn, offset, value); 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_set_irq 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @bus_num: bus number of PCI device 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev_num: device number of PCI device 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @slot: pointer to u8 where slot number will be returned 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num) 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rc = 0; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cpqhp_legacy_mode) { 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *fakedev; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *fakebus; 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 temp_word; 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakedev = kmalloc(sizeof(*fakedev), GFP_KERNEL); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakebus = kmalloc(sizeof(*fakebus), GFP_KERNEL); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!fakedev || !fakebus) { 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakedev); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakebus); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakedev->devfn = dev_num << 3; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakedev->bus = fakebus; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakebus->number = bus_num; 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: dev %d, bus %d, pin %d, num %d\n", 17666bef8c059015ba2b36bb5759080336feb01e680Harvey Harrison __func__, dev_num, bus_num, int_pin, irq_num); 17798d3333a13029ab07ca1d1bfb9bfa138ea76c3c0Bjorn Helgaas rc = pcibios_set_irq_routing(fakedev, int_pin - 1, irq_num); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakedev); 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakebus); 18066bef8c059015ba2b36bb5759080336feb01e680Harvey Harrison dbg("%s: rc %d\n", __func__, rc); 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!rc) 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !rc; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 184427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* set the Edge Level Control Register (ELCR) */ 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_word = inb(0x4d0); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_word |= inb(0x4d1) << 8; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_word |= 0x01 << irq_num; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 190427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* This should only be for x86 as it sets the Edge Level 191427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * Control Register 192427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 193427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang outb((u8) (temp_word & 0xFF), 0x4d0); outb((u8) ((temp_word & 194427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang 0xFF00) >> 8), 0x4d1); rc = 0; } 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_ScanBusForNonBridge(struct controller *ctrl, u8 bus_num, u8 * dev_num) 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tdevice; 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 work; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 tbus; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = bus_num; 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (tdevice = 0; tdevice < 0xFF; tdevice++) { 209427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Scan for access first */ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_RefinedAccessConfig(ctrl->pci_bus, tdevice, 0x08, &work) == -1) 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Looking for nonbridge bus_num %d dev_num %d\n", bus_num, tdevice); 213427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Yep we got one. Not a bridge ? */ 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((work >> 8) != PCI_TO_PCI_BRIDGE_CLASS) { 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dev_num = tdevice; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found it !\n"); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (tdevice = 0; tdevice < 0xFF; tdevice++) { 221427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Scan for access first */ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_RefinedAccessConfig(ctrl->pci_bus, tdevice, 0x08, &work) == -1) 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Looking for bridge bus_num %d dev_num %d\n", bus_num, tdevice); 225427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Yep we got one. bridge ? */ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) { 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(tdevice, 0), PCI_SECONDARY_BUS, &tbus); 228e3265ea364c7ed5accc9955f8b805c380149870fAlex Chiang /* XXX: no recursion, wtf? */ 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Recurse on bus_num %d tdevice %d\n", tbus, tdevice); 230e3265ea364c7ed5accc9955f8b805c380149870fAlex Chiang return 0; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot, u8 nobridge) 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 240b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang int loop, len; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 work; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 tbus, tdevice, tslot; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 244b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang len = cpqhp_routing_table_length(); 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (loop = 0; loop < len; ++loop) { 246b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang tbus = cpqhp_routing_table->slots[loop].bus; 247b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang tdevice = cpqhp_routing_table->slots[loop].devfn; 248b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang tslot = cpqhp_routing_table->slots[loop].slot; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tslot == slot) { 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *bus_num = tbus; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dev_num = tdevice; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = tbus; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work); 255b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang if (!nobridge || (work == 0xffffffff)) 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("bus_num %d devfn %d\n", *bus_num, *dev_num); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_CLASS_REVISION, &work); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("work >> 8 (%x) = BRIDGE (%x)\n", work >> 8, PCI_TO_PCI_BRIDGE_CLASS); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) { 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, *dev_num, PCI_SECONDARY_BUS, &tbus); 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Scan bus for Non Bridge: bus %d\n", tbus); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_ScanBusForNonBridge(ctrl, tbus, dev_num) == 0) { 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *bus_num = tbus; 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 269b019ee679afde950f2d01b1af0530453aa60af3fAlex Chiang } else 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_get_bus_dev (struct controller *ctrl, u8 * bus_num, u8 * dev_num, u8 slot) 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 279427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* plain (bridges allowed) */ 280427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang return PCI_GetBusDevHelper(ctrl, bus_num, dev_num, slot, 0); 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 284427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang/* More PCI configuration routines; this time centered around hotplug 285427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * controller 286427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_config 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Reads configuration for all slots in a PCI bus and saves info. 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: For non-hot plug busses, the slot # saved is the device # 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long rc; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 class_code; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ID; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *new_slot; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int FirstSupported; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int LastSupported; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int max_functions; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int function; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 DevError; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int device = 0; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cloop = 0; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int stop_it; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 317427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Decide which slots are supported */ 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_hot_plug) { 320427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* 321427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * is_hot_plug is the slot mask 322427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FirstSupported = is_hot_plug >> 4; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LastSupported = FirstSupported + (is_hot_plug & 0x0F) - 1; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FirstSupported = 0; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LastSupported = 0x1F; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 330427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save PCI configuration space for all devices in supported slots */ 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = busnumber; 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (device = FirstSupported; device <= LastSupported; device++) { 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ID = 0xFFFFFFFF; 3341d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(device, 0), PCI_VENDOR_ID, &ID); 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3361d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (ID == 0xFFFFFFFF) { 3371d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (is_hot_plug) { 3381d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* Setup slot structure with entry for empty 3391d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang * slot 3401d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang */ 3411d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot = cpqhp_slot_create(busnumber); 3421d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (new_slot == NULL) 3431d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return 1; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->bus = (u8) busnumber; 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->device = (u8) device; 3471d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->function = 0; 3481d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->is_a_board = 0; 3491d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->presence_save = 0; 3501d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->switch_save = 0; 3511d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } 3521d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang continue; 3531d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } 3541d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 3551d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(device, 0), 0x0B, &class_code); 3561d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (rc) 3571d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return rc; 3581d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 3591d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(device, 0), PCI_HEADER_TYPE, &header_type); 3601d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (rc) 3611d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return rc; 3621d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 3631d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* If multi-function device, set max_functions to 8 */ 3641d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (header_type & 0x80) 3651d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang max_functions = 8; 3661d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang else 3671d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang max_functions = 1; 3681d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 3691d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang function = 0; 3701d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 3711d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang do { 3721d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang DevError = 0; 3731d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 3741d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* Recurse the subordinate bus 3751d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang * get the subordinate bus number 3761d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang */ 3771d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(device, function), PCI_SECONDARY_BUS, &secondary_bus); 3781d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (rc) { 3791d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return rc; 3801d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } else { 3811d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang sub_bus = (int) secondary_bus; 3821d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 3831d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* Save secondary bus cfg spc 3841d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang * with this recursive call. 3851d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang */ 3861d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = cpqhp_save_config(ctrl, sub_bus, 0); 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 3891d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang ctrl->pci_bus->number = busnumber; 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3911d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3931d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang index = 0; 3941d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot = cpqhp_slot_find(busnumber, device, index++); 3951d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang while (new_slot && 3961d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang (new_slot->function != (u8) function)) 3971d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot = cpqhp_slot_find(busnumber, device, index++); 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3991d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (!new_slot) { 4001d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* Setup slot structure. */ 4011d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot = cpqhp_slot_create(busnumber); 4021d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (new_slot == NULL) 4031d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return 1; 4041d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4061d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->bus = (u8) busnumber; 4071d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->device = (u8) device; 4081d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->function = (u8) function; 4091d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->is_a_board = 1; 4101d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->switch_save = 0x10; 4111d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* In case of unsupported board */ 4121d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang new_slot->status = DevError; 41312a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang new_slot->pci_dev = pci_get_bus_and_slot(new_slot->bus, (new_slot->device << 3) | new_slot->function); 4141d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 4151d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang for (cloop = 0; cloop < 0x20; cloop++) { 4161d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(device, function), cloop << 2, (u32 *) & (new_slot-> config_space [cloop])); 4171d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (rc) 4181d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return rc; 4191d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } 4201d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 42112a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang pci_dev_put(new_slot->pci_dev); 42212a9da0fcb147b46de33bb919b1de2bb92c9e2a9Alex Chiang 4231d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang function++; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4251d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang stop_it = 0; 4261d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang 4271d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang /* this loop skips to the next present function 4281d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang * reading in Class Code and Header type. 4291d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang */ 4301d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang while ((function < max_functions) && (!stop_it)) { 4311d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(device, function), PCI_VENDOR_ID, &ID); 4321d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (ID == 0xFFFFFFFF) { 4331d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang function++; 4341d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang continue; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4361d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(device, function), 0x0B, &class_code); 4371d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (rc) 4381d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return rc; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4401d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang rc = pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(device, function), PCI_HEADER_TYPE, &header_type); 4411d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang if (rc) 4421d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return rc; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang stop_it++; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4471d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang } while (function < max_functions); 448427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of FOR loop */ 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501d2e8b1c58ef96b8834b139caf4357effedcb5abAlex Chiang return 0; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_slot_config 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Saves configuration info for all PCI devices in a given slot 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * including subordinate busses. 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot) 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long rc; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 class_code; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ID; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int max_functions; 471de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang int function = 0; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cloop = 0; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int stop_it; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ID = 0xFFFFFFFF; 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = new_slot->bus; 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), PCI_VENDOR_ID, &ID); 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 480de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang if (ID == 0xFFFFFFFF) 481de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang return 2; 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 483de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), 0x0B, &class_code); 484de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), PCI_HEADER_TYPE, &header_type); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 486de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang if (header_type & 0x80) /* Multi-function device */ 487de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang max_functions = 8; 488de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang else 489de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang max_functions = 1; 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang while (function < max_functions) { 492de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 493de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang /* Recurse the subordinate bus */ 494de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_SECONDARY_BUS, &secondary_bus); 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 496de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang sub_bus = (int) secondary_bus; 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 498de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang /* Save the config headers for the secondary 499de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang * bus. 500de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang */ 501de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang rc = cpqhp_save_config(ctrl, sub_bus, 0); 502de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang if (rc) 503de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang return(rc); 504de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang ctrl->pci_bus->number = new_slot->bus; 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 506de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang } 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 508de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang new_slot->status = 0; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 510de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang for (cloop = 0; cloop < 0x20; cloop++) 511de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), cloop << 2, (u32 *) & (new_slot-> config_space [cloop])); 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 513de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang function++; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 515de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang stop_it = 0; 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 517de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang /* this loop skips to the next present function 518de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang * reading in the Class Code and the Header type. 519de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang */ 520de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang while ((function < max_functions) && (!stop_it)) { 521de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_VENDOR_ID, &ID); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 523de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang if (ID == 0xFFFFFFFF) 524de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang function++; 525de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang else { 526de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), 0x0B, &class_code); 527de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang pci_bus_read_config_byte(ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_HEADER_TYPE, &header_type); 528de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang stop_it++; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 530de86ae16d55a23315cdf1dae68df9de55312cf25Alex Chiang } 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_base_addr_length 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Saves the length of all base address registers for the 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * specified slot. this is for hot plug REPLACE 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func * func) 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 cloop; 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 type; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_register; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 base; 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 rc; 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *next; 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func != NULL) { 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 567427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check for Bridge */ 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sub_bus = (int) secondary_bus; 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = cpqhp_slot_list[sub_bus]; 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (next != NULL) { 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_save_base_addr_length(ctrl, next); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = next->next; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 586427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* FIXME: this loop is duplicated in the non-bridge 587427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * case. The two could be rolled together Figure out 588427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * IO and memory base lengths 589427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x14; cloop += 4) { 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); 594427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this register is implemented */ 595427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if (base) { 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base & 0x01L) { 597427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* IO base 598427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * set base = amount of IO space 599427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * requested 600427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFFE; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 1; 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 606427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* memory base */ 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFF0; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = 0x0L; 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 617427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save information in slot structure */ 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_length[(cloop - 0x10) >> 2] = 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base; 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_type[(cloop - 0x10) >> 2] = type; 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 622427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of base register loop */ 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 624427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } else if ((header_type & 0x7F) == 0x00) { 625427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Figure out IO and memory base lengths */ 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x24; cloop += 4) { 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this register is implemented */ 632427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if (base) { 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base & 0x01L) { 634427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* IO base 635427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * base = amount of IO space 636427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * requested 637427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFFE; 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 1; 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 643427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* memory base 644427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * base = amount of memory 645427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * space requested 646427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFF0; 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = 0x0L; 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 657427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save information in slot structure */ 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_length[(cloop - 0x10) >> 2] = base; 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_type[(cloop - 0x10) >> 2] = type; 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 661427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of base register loop */ 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 663427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } else { /* Some other unknown header type */ 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 666427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* find the next device in this slot */ 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(0); 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_used_resources 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Stores used resource information for existing boards. this is 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for boards that were in the system when this driver was loaded. 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this function is for hot plug ADD 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 cloop; 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 temp_byte; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 b_base; 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 b_length; 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 command; 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 save_command; 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 w_base; 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 w_length; 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_register; 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 save_base; 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 base; 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *mem_node; 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *p_mem_node; 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *io_node; 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *bus_node; 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((func != NULL) && func->is_a_board) { 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 712427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save the command register */ 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &save_command); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 715427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* disable card */ 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds command = 0x00; 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 719427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check for Bridge */ 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 722427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 723427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Clear Bridge Control Register */ 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds command = 0x00; 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, command); 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_SUBORDINATE_BUS, &temp_byte); 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node = kmalloc(sizeof(*bus_node), GFP_KERNEL); 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!bus_node) 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->base = secondary_bus; 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->length = temp_byte - secondary_bus + 1; 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->next = func->bus_head; 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = bus_node; 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 739427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save IO base and Limit registers */ 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_BASE, &b_base); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_LIMIT, &b_length); 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((b_base <= b_length) && (save_command & 0x01)) { 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), GFP_KERNEL); 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = (b_base & 0xF0) << 8; 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = (b_length - b_base + 0x10) << 8; 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 755427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save memory base and Limit registers */ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_BASE, &w_base); 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, &w_length); 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((w_base <= w_length) && (save_command & 0x02)) { 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), GFP_KERNEL); 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = w_base << 16; 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = (w_length - w_base + 0x10) << 16; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 771427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Save prefetchable memory base and Limit registers */ 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_BASE, &w_base); 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_LIMIT, &w_length); 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((w_base <= w_length) && (save_command & 0x02)) { 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), GFP_KERNEL); 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = w_base << 16; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = (w_length - w_base + 0x10) << 16; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 786427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Figure out IO and memory base lengths */ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x14; cloop += 4) { 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &save_base); 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword(pci_bus, devfn, cloop, temp_register); 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword(pci_bus, devfn, cloop, &base); 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base; 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 796427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this register is implemented */ 797427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if (base) { 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x03L) == 0x01) 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x01)) { 800427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* IO base 801427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * set temp_register = amount 802427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * of IO space requested 803427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFFE; 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds save_base & (~0x03L); 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = temp_register; 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x08) 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 821427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* prefetchable memory base */ 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = save_base & (~0x0FL); 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = temp_register; 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x00) 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 838427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* prefetchable memory base */ 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = save_base & (~0x0FL); 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = temp_register; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(1); 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 855427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of base register loop */ 856427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Standard header */ 857427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } else if ((header_type & 0x7F) == 0x00) { 858427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Figure out IO and memory base lengths */ 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x24; cloop += 4) { 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword(pci_bus, devfn, cloop, &save_base); 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword(pci_bus, devfn, cloop, temp_register); 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword(pci_bus, devfn, cloop, &base); 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 868427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this register is implemented */ 869427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if (base) { 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x03L) == 0x01) 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x01)) { 872427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* IO base 873427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * set temp_register = amount 874427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * of IO space requested 875427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFFE; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = save_base & (~0x01L); 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = temp_register; 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x08) 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 892427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* prefetchable memory base */ 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = save_base & (~0x0FL); 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = temp_register; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x00) 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 909427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* prefetchable memory base */ 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = save_base & (~0x0FL); 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = temp_register; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(1); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 926427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of base register loop */ 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 929427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* find the next device in this slot */ 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9334aabb58e1f544e97dbb97d0ce29bdfc9108f2f2cAlex Chiang return 0; 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_configure_board 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copies saved configuration information to one slot. 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this is called recursively for bridge devices. 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this is for hot plug REPLACE! 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_configure_board(struct controller *ctrl, struct pci_func * func) 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cloop; 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *next; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp; 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 rc; 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func != NULL) { 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 965427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Start at the top of config space so that the control 966427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * registers are programmed last 967427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 9684aabb58e1f544e97dbb97d0ce29bdfc9108f2f2cAlex Chiang for (cloop = 0x3C; cloop > 0; cloop -= 4) 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, func->config_space[cloop >> 2]); 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 973427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this is a bridge device, restore subordinate devices */ 974427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sub_bus = (int) secondary_bus; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = cpqhp_slot_list[sub_bus]; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (next != NULL) { 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_configure_board(ctrl, next); 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = next->next; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 990427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check all the base Address Registers to make sure 991427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * they are the same. If not, the board is different. 992427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 16; cloop < 40; cloop += 4) { 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &temp); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp != func->config_space[cloop >> 2]) { 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Config space compare failure!!! offset = %x\n", cloop); 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("bus = %x, device = %x, function = %x\n", func->bus, func->device, func->function); 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("temp = %x, config space = %x\n\n", temp, func->config_space[cloop >> 2]); 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->configured = 1; 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_valid_replace 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this function checks to see if a board is the same as the 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * one it is replacing. this check will detect if the device's 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * vendor or device id's are the same 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if the board is the same nonzero otherwise 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_valid_replace(struct controller *ctrl, struct pci_func * func) 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 cloop; 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 type; 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_register = 0; 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 base; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 rc; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *next; 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!func->is_a_board) 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADD_NOT_SUPPORTED); 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func != NULL) { 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, PCI_VENDOR_ID, &temp_register); 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1049427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* No adapter present */ 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register == 0xFFFFFFFF) 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(NO_ADAPTER_PRESENT); 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register != func->config_space[0]) 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1056427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check for same revision number and class code */ 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, PCI_CLASS_REVISION, &temp_register); 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1059427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Adapter not the same */ 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register != func->config_space[0x08 >> 2]) 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1063427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check for Bridge */ 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1066427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 1067427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* In order to continue checking, we must program the 1068427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * bus registers in the bridge to respond to accesses 1069427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * for its subordinate bus(es) 1070427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = func->config_space[0x18 >> 2]; 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, PCI_PRIMARY_BUS, temp_register); 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds secondary_bus = (temp_register >> 8) & 0xFF; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = cpqhp_slot_list[secondary_bus]; 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (next != NULL) { 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_valid_replace(ctrl, next); 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = next->next; 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1088427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check to see if it is a standard config header */ 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if ((header_type & 0x7F) == PCI_HEADER_TYPE_NORMAL) { 1090427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check subsystem vendor and ID */ 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, PCI_SUBSYSTEM_VENDOR_ID, &temp_register); 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register != func->config_space[0x2C >> 2]) { 1094427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If it's a SMART-2 and the register isn't 1095427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * filled in, ignore the difference because 1096427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * they just have an old rev of the firmware 1097427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!((func->config_space[0] == 0xAE100E11) 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (temp_register == 0x00L))) 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1102427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Figure out IO and memory base lengths */ 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x24; cloop += 4) { 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); 1107427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang 1108427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this register is implemented */ 1109427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang if (base) { 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base & 0x01L) { 1111427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* IO base 1112427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * set base = amount of IO 1113427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * space requested 1114427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFFE; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 1; 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1120427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* memory base */ 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFF0; 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = 0x0L; 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Check information in slot structure */ 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->base_length[(cloop - 0x10) >> 2] != base) 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->base_type[(cloop - 0x10) >> 2] != type) 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1138427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of base register loop */ 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1140427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang } /* End of (type 0 config space) else */ 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 1142427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* this is not a type 0 or 1 config space header so 1143427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * we don't know how to do it 1144427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(DEVICE_TYPE_NOT_SUPPORTED); 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1148427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Get the next function */ 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_find_available_resources 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Finds available memory, IO, and IRQ resources for programming 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * devices which may be added to the system 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this function is for hot plug ADD! 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 1165861fefbf550d41e7a4f44584f3ec35977fa08bf1Alex Chiang */ 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_start) 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 temp; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 populated_slot; 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 bridged_slot; 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *one_slot; 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *rom_resource_table; 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *func = NULL; 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i = 10, index; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_dword, rc; 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *mem_node; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *p_mem_node; 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *io_node; 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *bus_node; 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rom_resource_table = detect_HRT_floating_pointer(rom_start, rom_start+0xffff); 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("rom_resource_table = %p\n", rom_resource_table); 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11844aabb58e1f544e97dbb97d0ce29bdfc9108f2f2cAlex Chiang if (rom_resource_table == NULL) 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 11864aabb58e1f544e97dbb97d0ce29bdfc9108f2f2cAlex Chiang 1187427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* Sum all resources and setup resource maps */ 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = readl(rom_resource_table + UNUSED_IRQ); 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("unused_IRQ = %x\n", unused_IRQ); 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp = 0; 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (unused_IRQ) { 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unused_IRQ & 1) { 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_disk_irq = temp; 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = unused_IRQ >> 1; 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp++; 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("cpqhp_disk_irq= %d\n", cpqhp_disk_irq); 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = unused_IRQ >> 1; 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp++; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (unused_IRQ) { 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unused_IRQ & 1) { 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_nic_irq = temp; 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = unused_IRQ >> 1; 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp++; 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("cpqhp_nic_irq= %d\n", cpqhp_nic_irq); 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = readl(rom_resource_table + PCIIRQ); 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp = 0; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12194aabb58e1f544e97dbb97d0ce29bdfc9108f2f2cAlex Chiang if (!cpqhp_nic_irq) 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_nic_irq = ctrl->cfgspc_irq; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12224aabb58e1f544e97dbb97d0ce29bdfc9108f2f2cAlex Chiang if (!cpqhp_disk_irq) 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_disk_irq = ctrl->cfgspc_irq; 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("cpqhp_disk_irq, cpqhp_nic_irq= %d, %d\n", cpqhp_disk_irq, cpqhp_nic_irq); 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = compaq_nvram_load(rom_start, ctrl); 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot = rom_resource_table + sizeof (struct hrt); 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = readb(rom_resource_table + NUMBER_OF_ENTRIES); 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("number_of_entries = %d\n", i); 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readb(one_slot + SECONDARY_BUS)) 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("dev|IO base|length|Mem base|length|Pre base|length|PB SB MB\n"); 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (i && readb(one_slot + SECONDARY_BUS)) { 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 dev_func = readb(one_slot + DEV_FUNC); 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 primary_bus = readb(one_slot + PRIMARY_BUS); 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus = readb(one_slot + SECONDARY_BUS); 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 max_bus = readb(one_slot + MAX_BUS); 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 io_base = readw(one_slot + IO_BASE); 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 io_length = readw(one_slot + IO_LENGTH); 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 mem_base = readw(one_slot + MEM_BASE); 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 mem_length = readw(one_slot + MEM_LENGTH); 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pre_mem_base = readw(one_slot + PRE_MEM_BASE); 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pre_mem_length = readw(one_slot + PRE_MEM_LENGTH); 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%2.2x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x |%2.2x %2.2x %2.2x\n", 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_func, io_base, io_length, mem_base, mem_length, pre_mem_base, pre_mem_length, 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds primary_bus, secondary_bus, max_bus); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1257427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If this entry isn't for our controller's bus, ignore it */ 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (primary_bus != ctrl->bus) { 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i--; 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot += sizeof (struct slot_rt); 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1263427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* find out if this entry is for an occupied slot */ 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = primary_bus; 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, dev_func, PCI_VENDOR_ID, &temp_dword); 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("temp_D_word = %x\n", temp_dword); 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_dword != 0xFFFFFFFF) { 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds index = 0; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(primary_bus, dev_func >> 3, 0); 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func && (func->function != (dev_func & 0x07))) { 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("func = %p (bus, dev, fun) = (%d, %d, %d)\n", func, primary_bus, dev_func >> 3, index); 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(primary_bus, dev_func >> 3, index++); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1277427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If we can't find a match, skip this table entry */ 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!func) { 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i--; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot += sizeof (struct slot_rt); 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1283427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* this may not work and shouldn't be used */ 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (secondary_bus != primary_bus) 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bridged_slot = 1; 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bridged_slot = 0; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds populated_slot = 1; 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds populated_slot = 0; 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bridged_slot = 0; 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1296427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If we've got a valid IO base, use it */ 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_dword = io_base + io_length; 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((io_base) && (temp_dword < 0x10000)) { 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), GFP_KERNEL); 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = io_base; 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = io_length; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found io_node(base, length) = %x, %x\n", 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base, io_node->length); 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = ctrl->io_head; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->io_head = io_node; 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1320427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If we've got a valid memory base, use it */ 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_dword = mem_base + mem_length; 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((mem_base) && (temp_dword < 0x10000)) { 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), GFP_KERNEL); 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = mem_base << 16; 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = mem_length << 16; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found mem_node(base, length) = %x, %x\n", 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base, mem_node->length); 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = ctrl->mem_head; 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->mem_head = mem_node; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1343427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If we've got a valid prefetchable memory base, and 1344427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * the base + length isn't greater than 0xFFFF 1345427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_dword = pre_mem_base + pre_mem_length; 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((pre_mem_base) && (temp_dword < 0x10000)) { 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), GFP_KERNEL); 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = pre_mem_base << 16; 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = pre_mem_length << 16; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found p_mem_node(base, length) = %x, %x\n", 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base, p_mem_node->length); 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = ctrl->p_mem_head; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->p_mem_head = p_mem_node; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1368427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If we've got a valid bus number, use it 1369427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * The second condition is to ignore bus numbers on 1370427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * populated slots that don't have PCI-PCI bridges 1371427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (secondary_bus && (secondary_bus != primary_bus)) { 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node = kmalloc(sizeof(*bus_node), GFP_KERNEL); 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!bus_node) 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->base = secondary_bus; 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->length = max_bus - secondary_bus + 1; 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found bus_node(base, length) = %x, %x\n", 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->base, bus_node->length); 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->next = ctrl->bus_head; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->bus_head = bus_node; 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->next = func->bus_head; 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = bus_node; 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i--; 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot += sizeof (struct slot_rt); 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1395427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang /* If all of the following fail, we don't have any resources for 1396427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang * hot plug add 1397427438c61b0083a60bb953cb36cfdc5841f0bb03Alex Chiang */ 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = 1; 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->mem_head)); 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->p_mem_head)); 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->io_head)); 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->bus_head)); 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_return_board_resources 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this routine returns all resources allocated to a board to 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the available pool. 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_return_board_resources(struct pci_func * func, struct resource_lists * resources) 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rc = 0; 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *node; 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *t_node; 142166bef8c059015ba2b36bb5759080336feb01e680Harvey Harrison dbg("%s\n", __func__); 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!func) 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->io_head; 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = NULL; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->io_head), node); 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->mem_head; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = NULL; 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->mem_head), node); 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->p_mem_head; 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = NULL; 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->p_mem_head), node); 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->bus_head; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = NULL; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->bus_head), node); 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->mem_head)); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->p_mem_head)); 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->io_head)); 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->bus_head)); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_destroy_resource_list 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Puts node back in the resource list pointed to by head 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid cpqhp_destroy_resource_list (struct resource_lists * resources) 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *res, *tres; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->io_head; 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->io_head = NULL; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->mem_head; 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->mem_head = NULL; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->p_mem_head; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->p_mem_head = NULL; 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->bus_head; 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->bus_head = NULL; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_destroy_board_resources 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Puts node back in the resource list pointed to by head 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid cpqhp_destroy_board_resources (struct pci_func * func) 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *res, *tres; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->io_head; 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = NULL; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->mem_head; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = NULL; 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->p_mem_head; 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = NULL; 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->bus_head; 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = NULL; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1560