cpqphp_pci.c revision 7a54f25cef6c763f16c9fd49ae382de162147873
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#include "../../../arch/i386/pci/pci.h" /* horrible hack showing how processor dependent we are... */ 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu8 cpqhp_nic_irq; 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsu8 cpqhp_disk_irq; 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u16 unused_IRQ; 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * detect_HRT_floating_pointer 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * find the Hot Plug Resource Table in the specified region of memory. 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *detect_HRT_floating_pointer(void __iomem *begin, void __iomem *end) 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *fp; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *endp; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 temp1, temp2, temp3, temp4; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int status = 0; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds endp = (end - sizeof(struct hrt) + 1); 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (fp = begin; fp <= endp; fp += 16) { 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp1 = readb(fp + SIG0); 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp2 = readb(fp + SIG1); 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp3 = readb(fp + SIG2); 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp4 = readb(fp + SIG3); 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp1 == '$' && 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp2 == 'H' && 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp3 == 'R' && 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp4 == 'T') { 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = 1; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!status) 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fp = NULL; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Discovered Hotplug Resource Table at %p\n", fp); 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fp; 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_configure_device (struct controller* ctrl, struct pci_func* func) 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char bus; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *child; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev == NULL) 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->pci_dev = pci_find_slot(func->bus, PCI_DEVFN(func->device, func->function)); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No pci device, we need to create it then */ 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev == NULL) { 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("INFO: pci_dev still null\n"); 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds num = pci_scan_slot(ctrl->pci_dev->bus, PCI_DEVFN(func->device, func->function)); 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (num) 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_add_devices(ctrl->pci_dev->bus); 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->pci_dev = pci_find_slot(func->bus, PCI_DEVFN(func->device, func->function)); 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev == NULL) { 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("ERROR: pci_dev still null\n"); 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->pci_dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_read_config_byte(func->pci_dev, PCI_SECONDARY_BUS, &bus); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds child = (struct pci_bus*) pci_add_new_bus(func->pci_dev->bus, (func->pci_dev), bus); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_do_scan_bus(child); 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_unconfigure_device(struct pci_func* func) 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int j; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: bus/dev/func = %x/%x/%x\n", __FUNCTION__, func->bus, func->device, func->function); 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j=0; j<8 ; j++) { 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev* temp = pci_find_slot(func->bus, PCI_DEVFN(func->device, j)); 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp) 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_remove_bus_device(temp); 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_RefinedAccessConfig(struct pci_bus *bus, unsigned int devfn, u8 offset, u32 *value) 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 vendID = 0; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_bus_read_config_dword (bus, devfn, PCI_VENDOR_ID, &vendID) == -1) 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vendID == 0xffffffff) 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pci_bus_read_config_dword (bus, devfn, offset, value); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_set_irq 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @bus_num: bus number of PCI device 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev_num: device number of PCI device 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @slot: pointer to u8 where slot number will be returned 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num) 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rc = 0; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cpqhp_legacy_mode) { 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *fakedev; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *fakebus; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 temp_word; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakedev = kmalloc(sizeof(*fakedev), GFP_KERNEL); 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakebus = kmalloc(sizeof(*fakebus), GFP_KERNEL); 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!fakedev || !fakebus) { 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakedev); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakebus); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakedev->devfn = dev_num << 3; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakedev->bus = fakebus; 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fakebus->number = bus_num; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: dev %d, bus %d, pin %d, num %d\n", 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __FUNCTION__, dev_num, bus_num, int_pin, irq_num); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pcibios_set_irq_routing(fakedev, int_pin - 0x0a, irq_num); 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakedev); 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(fakebus); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: rc %d\n", __FUNCTION__, rc); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!rc) 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return !rc; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // set the Edge Level Control Register (ELCR) 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_word = inb(0x4d0); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_word |= inb(0x4d1) << 8; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_word |= 0x01 << irq_num; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // This should only be for x86 as it sets the Edge Level Control Register 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb((u8) (temp_word & 0xFF), 0x4d0); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb((u8) ((temp_word & 0xFF00) >> 8), 0x4d1); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = 0; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WTF??? This function isn't in the code, yet a function calls it, but the 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * compiler optimizes it away? strange. Here as a placeholder to keep the 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * compiler happy. 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_ScanBusNonBridge (u8 bus, u8 device) 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_ScanBusForNonBridge(struct controller *ctrl, u8 bus_num, u8 * dev_num) 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tdevice; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 work; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 tbus; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = bus_num; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (tdevice = 0; tdevice < 0xFF; tdevice++) { 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //Scan for access first 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_RefinedAccessConfig(ctrl->pci_bus, tdevice, 0x08, &work) == -1) 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Looking for nonbridge bus_num %d dev_num %d\n", bus_num, tdevice); 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //Yep we got one. Not a bridge ? 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((work >> 8) != PCI_TO_PCI_BRIDGE_CLASS) { 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dev_num = tdevice; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found it !\n"); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (tdevice = 0; tdevice < 0xFF; tdevice++) { 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //Scan for access first 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_RefinedAccessConfig(ctrl->pci_bus, tdevice, 0x08, &work) == -1) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Looking for bridge bus_num %d dev_num %d\n", bus_num, tdevice); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //Yep we got one. bridge ? 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) { 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(tdevice, 0), PCI_SECONDARY_BUS, &tbus); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Recurse on bus_num %d tdevice %d\n", tbus, tdevice); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_ScanBusNonBridge(tbus, tdevice) == 0) 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot, u8 nobridge) 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct irq_routing_table *PCIIRQRoutingInfoLength; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long len; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long loop; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 work; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 tbus, tdevice, tslot; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCIIRQRoutingInfoLength = pcibios_get_irq_routing_table(); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!PCIIRQRoutingInfoLength) 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (PCIIRQRoutingInfoLength->size - 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(struct irq_routing_table)) / sizeof(struct irq_info); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Make sure I got at least one entry 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len == 0) { 2626044ec8882c726e325017bd948aa0cd94ad33abcJesper Juhl kfree(PCIIRQRoutingInfoLength ); 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (loop = 0; loop < len; ++loop) { 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tbus = PCIIRQRoutingInfoLength->slots[loop].bus; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tdevice = PCIIRQRoutingInfoLength->slots[loop].devfn; 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tslot = PCIIRQRoutingInfoLength->slots[loop].slot; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tslot == slot) { 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *bus_num = tbus; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dev_num = tdevice; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = tbus; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work); 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!nobridge || (work == 0xffffffff)) { 2776044ec8882c726e325017bd948aa0cd94ad33abcJesper Juhl kfree(PCIIRQRoutingInfoLength ); 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("bus_num %d devfn %d\n", *bus_num, *dev_num); 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_CLASS_REVISION, &work); 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("work >> 8 (%x) = BRIDGE (%x)\n", work >> 8, PCI_TO_PCI_BRIDGE_CLASS); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) { 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, *dev_num, PCI_SECONDARY_BUS, &tbus); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Scan bus for Non Bridge: bus %d\n", tbus); 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (PCI_ScanBusForNonBridge(ctrl, tbus, dev_num) == 0) { 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *bus_num = tbus; 2906044ec8882c726e325017bd948aa0cd94ad33abcJesper Juhl kfree(PCIIRQRoutingInfoLength ); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2946044ec8882c726e325017bd948aa0cd94ad33abcJesper Juhl kfree(PCIIRQRoutingInfoLength ); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3006044ec8882c726e325017bd948aa0cd94ad33abcJesper Juhl kfree(PCIIRQRoutingInfoLength ); 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_get_bus_dev (struct controller *ctrl, u8 * bus_num, u8 * dev_num, u8 slot) 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return PCI_GetBusDevHelper(ctrl, bus_num, dev_num, slot, 0); //plain (bridges allowed) 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* More PCI configuration routines; this time centered around hotplug controller */ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_config 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Reads configuration for all slots in a PCI bus and saves info. 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: For non-hot plug busses, the slot # saved is the device # 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long rc; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 class_code; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ID; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *new_slot; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int FirstSupported; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int LastSupported; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int max_functions; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int function; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 DevError; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int device = 0; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cloop = 0; 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int stop_it; 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Decide which slots are supported 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_hot_plug) { 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //********************************* 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // is_hot_plug is the slot mask 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //********************************* 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FirstSupported = is_hot_plug >> 4; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LastSupported = FirstSupported + (is_hot_plug & 0x0F) - 1; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FirstSupported = 0; 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LastSupported = 0x1F; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save PCI configuration space for all devices in supported slots 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = busnumber; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (device = FirstSupported; device <= LastSupported; device++) { 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ID = 0xFFFFFFFF; 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(device, 0), PCI_VENDOR_ID, &ID); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ID != 0xFFFFFFFF) { // device in slot 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, 0), 0x0B, &class_code); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, 0), PCI_HEADER_TYPE, &header_type); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If multi-function device, set max_functions to 8 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (header_type & 0x80) 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds max_functions = 8; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds max_functions = 1; 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds function = 0; 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DevError = 0; 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // P-P Bridge 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Recurse the subordinate bus 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // get the subordinate bus number 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, function), PCI_SECONDARY_BUS, &secondary_bus); 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) { 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sub_bus = (int) secondary_bus; 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save secondary bus cfg spc 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // with this recursive call. 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_save_config(ctrl, sub_bus, 0); 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = busnumber; 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds index = 0; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot = cpqhp_slot_find(busnumber, device, index++); 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (new_slot && 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_slot->function != (u8) function)) 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot = cpqhp_slot_find(busnumber, device, index++); 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!new_slot) { 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Setup slot structure. 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot = cpqhp_slot_create(busnumber); 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (new_slot == NULL) 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(1); 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->bus = (u8) busnumber; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->device = (u8) device; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->function = (u8) function; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->is_a_board = 1; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->switch_save = 0x10; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // In case of unsupported board 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->status = DevError; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->pci_dev = pci_find_slot(new_slot->bus, (new_slot->device << 3) | new_slot->function); 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0; cloop < 0x20; cloop++) { 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(device, function), cloop << 2, (u32 *) & (new_slot-> config_space [cloop])); 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds function++; 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stop_it = 0; 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // this loop skips to the next present function 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // reading in Class Code and Header type. 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((function < max_functions)&&(!stop_it)) { 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(device, function), PCI_VENDOR_ID, &ID); 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ID == 0xFFFFFFFF) { // nothing there. 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds function++; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { // Something there 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, function), 0x0B, &class_code); 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, function), PCI_HEADER_TYPE, &header_type); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stop_it++; 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (function < max_functions); 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of IF (device in slot?) 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (is_hot_plug) { 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Setup slot structure with entry for empty slot 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot = cpqhp_slot_create(busnumber); 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (new_slot == NULL) { 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(1); 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->bus = (u8) busnumber; 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->device = (u8) device; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->function = 0; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->is_a_board = 0; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->presence_save = 0; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->switch_save = 0; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of FOR loop 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(0); 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_slot_config 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Saves configuration info for all PCI devices in a given slot 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * including subordinate busses. 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot) 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long rc; 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 class_code; 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ID; 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int max_functions; 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int function; 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cloop = 0; 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int stop_it; 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ID = 0xFFFFFFFF; 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = new_slot->bus; 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), PCI_VENDOR_ID, &ID); 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ID != 0xFFFFFFFF) { // device in slot 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), 0x0B, &class_code); 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), PCI_HEADER_TYPE, &header_type); 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (header_type & 0x80) // Multi-function device 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds max_functions = 8; 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds max_functions = 1; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds function = 0; 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Recurse the subordinate bus 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_SECONDARY_BUS, &secondary_bus); 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sub_bus = (int) secondary_bus; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save the config headers for the secondary bus. 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_save_config(ctrl, sub_bus, 0); 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(rc); 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = new_slot->bus; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of IF 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_slot->status = 0; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0; cloop < 0x20; cloop++) { 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), cloop << 2, (u32 *) & (new_slot-> config_space [cloop])); 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds function++; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stop_it = 0; 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // this loop skips to the next present function 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // reading in the Class Code and the Header type. 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((function < max_functions) && (!stop_it)) { 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_VENDOR_ID, &ID); 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ID == 0xFFFFFFFF) { // nothing there. 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds function++; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { // Something there 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), 0x0B, &class_code); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_HEADER_TYPE, &header_type); 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stop_it++; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (function < max_functions); 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of IF (device in slot?) 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 2; 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_base_addr_length 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Saves the length of all base address registers for the 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * specified slot. this is for hot plug REPLACE 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func * func) 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 cloop; 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 type; 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_register; 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 base; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 rc; 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *next; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func != NULL) { 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check for Bridge 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // PCI-PCI Bridge 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sub_bus = (int) secondary_bus; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = cpqhp_slot_list[sub_bus]; 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (next != NULL) { 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_save_base_addr_length(ctrl, next); 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = next->next; 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds //FIXME: this loop is duplicated in the non-bridge case. The two could be rolled together 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Figure out IO and memory base lengths 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x14; cloop += 4) { 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base) { // If this register is implemented 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base & 0x01L) { 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // IO base 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // set base = amount of IO space requested 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFFE; 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 1; 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // memory base 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFF0; 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = 0x0L; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save information in slot structure 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_length[(cloop - 0x10) >> 2] = 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base; 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_type[(cloop - 0x10) >> 2] = type; 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of base register loop 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if ((header_type & 0x7F) == 0x00) { // PCI-PCI Bridge 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Figure out IO and memory base lengths 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x24; cloop += 4) { 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base) { // If this register is implemented 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base & 0x01L) { 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // IO base 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // base = amount of IO space requested 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFFE; 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 1; 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // memory base 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // base = amount of memory space requested 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFF0; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = 0x0L; 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save information in slot structure 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_length[(cloop - 0x10) >> 2] = base; 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->base_type[(cloop - 0x10) >> 2] = type; 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of base register loop 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { // Some other unknown header type 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // find the next device in this slot 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(0); 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_save_used_resources 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Stores used resource information for existing boards. this is 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for boards that were in the system when this driver was loaded. 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this function is for hot plug ADD 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 cloop; 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 temp_byte; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 b_base; 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 b_length; 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 command; 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 save_command; 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 w_base; 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 w_length; 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_register; 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 save_base; 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 base; 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *mem_node; 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *p_mem_node; 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *io_node; 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *bus_node; 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((func != NULL) && func->is_a_board) { 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save the command register 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &save_command); 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // disable card 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds command = 0x00; 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command); 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check for Bridge 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Clear Bridge Control Register 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds command = 0x00; 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, command); 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_SUBORDINATE_BUS, &temp_byte); 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node = kmalloc(sizeof(*bus_node), GFP_KERNEL); 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!bus_node) 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->base = secondary_bus; 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->length = temp_byte - secondary_bus + 1; 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->next = func->bus_head; 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = bus_node; 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save IO base and Limit registers 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_BASE, &b_base); 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_LIMIT, &b_length); 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((b_base <= b_length) && (save_command & 0x01)) { 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), GFP_KERNEL); 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = (b_base & 0xF0) << 8; 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = (b_length - b_base + 0x10) << 8; 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save memory base and Limit registers 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_BASE, &w_base); 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, &w_length); 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((w_base <= w_length) && (save_command & 0x02)) { 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), GFP_KERNEL); 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = w_base << 16; 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = (w_length - w_base + 0x10) << 16; 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Save prefetchable memory base and Limit registers 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_BASE, &w_base); 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_LIMIT, &w_length); 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((w_base <= w_length) && (save_command & 0x02)) { 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), GFP_KERNEL); 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = w_base << 16; 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = (w_length - w_base + 0x10) << 16; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Figure out IO and memory base lengths 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x14; cloop += 4) { 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &save_base); 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword(pci_bus, devfn, cloop, temp_register); 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword(pci_bus, devfn, cloop, &base); 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base) { // If this register is implemented 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x03L) == 0x01) 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x01)) { 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // IO base 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // set temp_register = amount of IO space requested 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFFE; 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds save_base & (~0x03L); 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = temp_register; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x08) 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // prefetchable memory base 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = save_base & (~0x0FL); 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = temp_register; 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x00) 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // prefetchable memory base 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = save_base & (~0x0FL); 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = temp_register; 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(1); 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of base register loop 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if ((header_type & 0x7F) == 0x00) { // Standard header 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Figure out IO and memory base lengths 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x24; cloop += 4) { 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword(pci_bus, devfn, cloop, &save_base); 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword(pci_bus, devfn, cloop, temp_register); 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword(pci_bus, devfn, cloop, &base); 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base) { // If this register is implemented 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x03L) == 0x01) 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x01)) { 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // IO base 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // set temp_register = amount of IO space requested 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFFE; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = save_base & (~0x01L); 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = temp_register; 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x08) 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // prefetchable memory base 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = save_base & (~0x0FL); 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = temp_register; 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((base & 0x0BL) == 0x00) 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (save_command & 0x02)) { 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // prefetchable memory base 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = base & 0xFFFFFFF0; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = (~temp_register) + 1; 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = save_base & (~0x0FL); 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = temp_register; 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(1); 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of base register loop 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { // Some other unknown header type 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // find the next device in this slot 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(0); 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_configure_board 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copies saved configuration information to one slot. 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this is called recursively for bridge devices. 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this is for hot plug REPLACE! 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_configure_board(struct controller *ctrl, struct pci_func * func) 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cloop; 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sub_bus; 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *next; 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp; 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 rc; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func != NULL) { 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Start at the top of config space so that the control 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // registers are programmed last 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x3C; cloop > 0; cloop -= 4) { 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, func->config_space[cloop >> 2]); 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If this is a bridge device, restore subordinate devices 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sub_bus = (int) secondary_bus; 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = cpqhp_slot_list[sub_bus]; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (next != NULL) { 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_configure_board(ctrl, next); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = next->next; 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check all the base Address Registers to make sure 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // they are the same. If not, the board is different. 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 16; cloop < 40; cloop += 4) { 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &temp); 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp != func->config_space[cloop >> 2]) { 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Config space compare failure!!! offset = %x\n", cloop); 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("bus = %x, device = %x, function = %x\n", func->bus, func->device, func->function); 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("temp = %x, config space = %x\n\n", temp, func->config_space[cloop >> 2]); 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->configured = 1; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_valid_replace 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this function checks to see if a board is the same as the 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * one it is replacing. this check will detect if the device's 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * vendor or device id's are the same 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if the board is the same nonzero otherwise 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_valid_replace(struct controller *ctrl, struct pci_func * func) 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 cloop; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 header_type; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus; 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 type; 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_register = 0; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 base; 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 rc; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *next; 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index = 0; 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *pci_bus = ctrl->pci_bus; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int devfn; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!func->is_a_board) 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADD_NOT_SUPPORTED); 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func != NULL) { 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus->number = func->bus; 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfn = PCI_DEVFN(func->device, func->function); 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, PCI_VENDOR_ID, &temp_register); 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // No adapter present 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register == 0xFFFFFFFF) 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(NO_ADAPTER_PRESENT); 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register != func->config_space[0]) 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check for same revision number and class code 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, PCI_CLASS_REVISION, &temp_register); 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Adapter not the same 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register != func->config_space[0x08 >> 2]) 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check for Bridge 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // In order to continue checking, we must program the 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // bus registers in the bridge to respond to accesses 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // for it's subordinate bus(es) 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = func->config_space[0x18 >> 2]; 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, PCI_PRIMARY_BUS, temp_register); 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds secondary_bus = (temp_register >> 8) & 0xFF; 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = cpqhp_slot_list[secondary_bus]; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (next != NULL) { 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = cpqhp_valid_replace(ctrl, next); 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds next = next->next; 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check to see if it is a standard config header 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if ((header_type & 0x7F) == PCI_HEADER_TYPE_NORMAL) { 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check subsystem vendor and ID 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, PCI_SUBSYSTEM_VENDOR_ID, &temp_register); 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_register != func->config_space[0x2C >> 2]) { 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If it's a SMART-2 and the register isn't filled 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // in, ignore the difference because 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // they just have an old rev of the firmware 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!((func->config_space[0] == 0xAE100E11) 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && (temp_register == 0x00L))) 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Figure out IO and memory base lengths 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (cloop = 0x10; cloop <= 0x24; cloop += 4) { 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_register = 0xFFFFFFFF; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base) { // If this register is implemented 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (base & 0x01L) { 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // IO base 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // set base = amount of IO space requested 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFFE; 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 1; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // memory base 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = base & 0xFFFFFFF0; 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = (~base) + 1; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = 0x0L; 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type = 0; 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Check information in slot structure 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->base_length[(cloop - 0x10) >> 2] != base) 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (func->base_type[(cloop - 0x10) >> 2] != type) 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(ADAPTER_NOT_SAME); 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of base register loop 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } // End of (type 0 config space) else 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // this is not a type 0 or 1 config space header so 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // we don't know how to do it 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return(DEVICE_TYPE_NOT_SUPPORTED); 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Get the next function 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(func->bus, func->device, index++); 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_find_available_resources 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Finds available memory, IO, and IRQ resources for programming 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * devices which may be added to the system 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this function is for hot plug ADD! 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_start) 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 temp; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 populated_slot; 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 bridged_slot; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *one_slot; 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *rom_resource_table; 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_func *func = NULL; 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i = 10, index; 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 temp_dword, rc; 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *mem_node; 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *p_mem_node; 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *io_node; 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *bus_node; 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rom_resource_table = detect_HRT_floating_pointer(rom_start, rom_start+0xffff); 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("rom_resource_table = %p\n", rom_resource_table); 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rom_resource_table == NULL) { 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // Sum all resources and setup resource maps 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = readl(rom_resource_table + UNUSED_IRQ); 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("unused_IRQ = %x\n", unused_IRQ); 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp = 0; 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (unused_IRQ) { 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unused_IRQ & 1) { 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_disk_irq = temp; 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = unused_IRQ >> 1; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp++; 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("cpqhp_disk_irq= %d\n", cpqhp_disk_irq); 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = unused_IRQ >> 1; 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp++; 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (unused_IRQ) { 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unused_IRQ & 1) { 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_nic_irq = temp; 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = unused_IRQ >> 1; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp++; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("cpqhp_nic_irq= %d\n", cpqhp_nic_irq); 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unused_IRQ = readl(rom_resource_table + PCIIRQ); 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp = 0; 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!cpqhp_nic_irq) { 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_nic_irq = ctrl->cfgspc_irq; 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!cpqhp_disk_irq) { 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cpqhp_disk_irq = ctrl->cfgspc_irq; 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("cpqhp_disk_irq, cpqhp_nic_irq= %d, %d\n", cpqhp_disk_irq, cpqhp_nic_irq); 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = compaq_nvram_load(rom_start, ctrl); 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot = rom_resource_table + sizeof (struct hrt); 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = readb(rom_resource_table + NUMBER_OF_ENTRIES); 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("number_of_entries = %d\n", i); 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readb(one_slot + SECONDARY_BUS)) 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("dev|IO base|length|Mem base|length|Pre base|length|PB SB MB\n"); 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (i && readb(one_slot + SECONDARY_BUS)) { 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 dev_func = readb(one_slot + DEV_FUNC); 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 primary_bus = readb(one_slot + PRIMARY_BUS); 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 secondary_bus = readb(one_slot + SECONDARY_BUS); 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 max_bus = readb(one_slot + MAX_BUS); 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 io_base = readw(one_slot + IO_BASE); 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 io_length = readw(one_slot + IO_LENGTH); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 mem_base = readw(one_slot + MEM_BASE); 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 mem_length = readw(one_slot + MEM_LENGTH); 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pre_mem_base = readw(one_slot + PRE_MEM_BASE); 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pre_mem_length = readw(one_slot + PRE_MEM_LENGTH); 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%2.2x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x |%2.2x %2.2x %2.2x\n", 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_func, io_base, io_length, mem_base, mem_length, pre_mem_base, pre_mem_length, 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds primary_bus, secondary_bus, max_bus); 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If this entry isn't for our controller's bus, ignore it 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (primary_bus != ctrl->bus) { 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i--; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot += sizeof (struct slot_rt); 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // find out if this entry is for an occupied slot 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->pci_bus->number = primary_bus; 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_read_config_dword (ctrl->pci_bus, dev_func, PCI_VENDOR_ID, &temp_dword); 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("temp_D_word = %x\n", temp_dword); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp_dword != 0xFFFFFFFF) { 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds index = 0; 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(primary_bus, dev_func >> 3, 0); 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (func && (func->function != (dev_func & 0x07))) { 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("func = %p (bus, dev, fun) = (%d, %d, %d)\n", func, primary_bus, dev_func >> 3, index); 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func = cpqhp_slot_find(primary_bus, dev_func >> 3, index++); 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If we can't find a match, skip this table entry 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!func) { 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i--; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot += sizeof (struct slot_rt); 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // this may not work and shouldn't be used 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (secondary_bus != primary_bus) 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bridged_slot = 1; 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bridged_slot = 0; 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds populated_slot = 1; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds populated_slot = 0; 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bridged_slot = 0; 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If we've got a valid IO base, use it 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_dword = io_base + io_length; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((io_base) && (temp_dword < 0x10000)) { 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node = kmalloc(sizeof(*io_node), GFP_KERNEL); 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!io_node) 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base = io_base; 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->length = io_length; 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found io_node(base, length) = %x, %x\n", 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->base, io_node->length); 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = ctrl->io_head; 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->io_head = io_node; 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds io_node->next = func->io_head; 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = io_node; 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If we've got a valid memory base, use it 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_dword = mem_base + mem_length; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((mem_base) && (temp_dword < 0x10000)) { 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node = kmalloc(sizeof(*mem_node), GFP_KERNEL); 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mem_node) 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base = mem_base << 16; 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->length = mem_length << 16; 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found mem_node(base, length) = %x, %x\n", 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->base, mem_node->length); 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = ctrl->mem_head; 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->mem_head = mem_node; 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mem_node->next = func->mem_head; 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = mem_node; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If we've got a valid prefetchable memory base, and 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // the base + length isn't greater than 0xFFFF 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_dword = pre_mem_base + pre_mem_length; 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((pre_mem_base) && (temp_dword < 0x10000)) { 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node = kmalloc(sizeof(*p_mem_node), GFP_KERNEL); 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p_mem_node) 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base = pre_mem_base << 16; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->length = pre_mem_length << 16; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found p_mem_node(base, length) = %x, %x\n", 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->base, p_mem_node->length); 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = ctrl->p_mem_head; 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->p_mem_head = p_mem_node; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p_mem_node->next = func->p_mem_head; 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = p_mem_node; 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If we've got a valid bus number, use it 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // The second condition is to ignore bus numbers on 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // populated slots that don't have PCI-PCI bridges 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (secondary_bus && (secondary_bus != primary_bus)) { 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node = kmalloc(sizeof(*bus_node), GFP_KERNEL); 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!bus_node) 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->base = secondary_bus; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->length = max_bus - secondary_bus + 1; 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("found bus_node(base, length) = %x, %x\n", 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->base, bus_node->length); 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("populated slot =%d \n", populated_slot); 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!populated_slot) { 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->next = ctrl->bus_head; 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctrl->bus_head = bus_node; 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_node->next = func->bus_head; 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = bus_node; 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i--; 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds one_slot += sizeof (struct slot_rt); 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // If all of the following fail, we don't have any resources for 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds // hot plug add 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = 1; 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->mem_head)); 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->p_mem_head)); 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->io_head)); 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc &= cpqhp_resource_sort_and_combine(&(ctrl->bus_head)); 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_return_board_resources 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this routine returns all resources allocated to a board to 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the available pool. 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * returns 0 if success 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint cpqhp_return_board_resources(struct pci_func * func, struct resource_lists * resources) 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rc = 0; 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *node; 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *t_node; 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s\n", __FUNCTION__); 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!func) 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->io_head; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = NULL; 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->io_head), node); 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->mem_head; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = NULL; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->mem_head), node); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->p_mem_head; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = NULL; 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->p_mem_head), node); 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = func->bus_head; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = NULL; 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (node) { 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t_node = node->next; 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return_resource(&(resources->bus_head), node); 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds node = t_node; 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->mem_head)); 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->p_mem_head)); 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->io_head)); 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc |= cpqhp_resource_sort_and_combine(&(resources->bus_head)); 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_destroy_resource_list 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Puts node back in the resource list pointed to by head 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid cpqhp_destroy_resource_list (struct resource_lists * resources) 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *res, *tres; 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->io_head; 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->io_head = NULL; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->mem_head; 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->mem_head = NULL; 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->p_mem_head; 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->p_mem_head = NULL; 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = resources->bus_head; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds resources->bus_head = NULL; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * cpqhp_destroy_board_resources 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Puts node back in the resource list pointed to by head 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid cpqhp_destroy_board_resources (struct pci_func * func) 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_resource *res, *tres; 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->io_head; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->io_head = NULL; 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->mem_head; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->mem_head = NULL; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->p_mem_head; 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->p_mem_head = NULL; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = func->bus_head; 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds func->bus_head = NULL; 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (res) { 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tres = res; 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds res = res->next; 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(tres); 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1565