Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0+
/*
 * IBM Hot Plug Controller Driver
 *
 * Written By: Tong Yu, IBM Corporation
 *
 * Copyright (C) 2001,2003 Greg Kroah-Hartman (greg@kroah.com)
 * Copyright (C) 2001-2003 IBM Corp.
 *
 * All rights reserved.
 *
 * Send feedback to <gregkh@us.ibm.com>
 *
 */
 
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/list.h>
#include <linux/init.h>
#include "ibmphp.h"
 
/*
 * POST builds data blocks(in this data block definition, a char-1
 * byte, short(or word)-2 byte, long(dword)-4 byte) in the Extended
 * BIOS Data Area which describe the configuration of the hot-plug
 * controllers and resources used by the PCI Hot-Plug devices.
 *
 * This file walks EBDA, maps data block from physical addr,
 * reconstruct linked lists about all system resource(MEM, PFM, IO)
 * already assigned by POST, as well as linked lists about hot plug
 * controllers (ctlr#, slot#, bus&slot features...)
 */
 
/* Global lists */
LIST_HEAD(ibmphp_ebda_pci_rsrc_head);
LIST_HEAD(ibmphp_slot_head);
 
/* Local variables */
static struct ebda_hpc_list *hpc_list_ptr;
static struct ebda_rsrc_list *rsrc_list_ptr;
static struct rio_table_hdr *rio_table_ptr = NULL;
static LIST_HEAD(ebda_hpc_head);
static LIST_HEAD(bus_info_head);
static LIST_HEAD(rio_vg_head);
static LIST_HEAD(rio_lo_head);
static LIST_HEAD(opt_vg_head);
static LIST_HEAD(opt_lo_head);
static void __iomem *io_mem;
 
/* Local functions */
static int ebda_rsrc_controller(void);
static int ebda_rsrc_rsrc(void);
static int ebda_rio_table(void);
 
static struct ebda_hpc_list * __init alloc_ebda_hpc_list(void)
{
<------>return kzalloc(sizeof(struct ebda_hpc_list), GFP_KERNEL);
}
 
static struct controller *alloc_ebda_hpc(u32 slot_count, u32 bus_count)
{
<------>struct controller *controller;
<------>struct ebda_hpc_slot *slots;
<------>struct ebda_hpc_bus *buses;
 
<------>controller = kzalloc(sizeof(struct controller), GFP_KERNEL);
<------>if (!controller)
<------><------>goto error;
 
<------>slots = kcalloc(slot_count, sizeof(struct ebda_hpc_slot), GFP_KERNEL);
<------>if (!slots)
<------><------>goto error_contr;
<------>controller->slots = slots;
 
<------>buses = kcalloc(bus_count, sizeof(struct ebda_hpc_bus), GFP_KERNEL);
<------>if (!buses)
<------><------>goto error_slots;
<------>controller->buses = buses;
 
<------>return controller;
error_slots:
<------>kfree(controller->slots);
error_contr:
<------>kfree(controller);
error:
<------>return NULL;
}
 
static void free_ebda_hpc(struct controller *controller)
{
<------>kfree(controller->slots);
<------>kfree(controller->buses);
<------>kfree(controller);
}
 
static struct ebda_rsrc_list * __init alloc_ebda_rsrc_list(void)
{
<------>return kzalloc(sizeof(struct ebda_rsrc_list), GFP_KERNEL);
}
 
static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc(void)
{
<------>return kzalloc(sizeof(struct ebda_pci_rsrc), GFP_KERNEL);
}
 
static void __init print_bus_info(void)
{
<------>struct bus_info *ptr;
 
<------>list_for_each_entry(ptr, &bus_info_head, bus_info_list) {
<------><------>debug("%s - slot_min = %x\n", __func__, ptr->slot_min);
<------><------>debug("%s - slot_max = %x\n", __func__, ptr->slot_max);
<------><------>debug("%s - slot_count = %x\n", __func__, ptr->slot_count);
<------><------>debug("%s - bus# = %x\n", __func__, ptr->busno);
<------><------>debug("%s - current_speed = %x\n", __func__, ptr->current_speed);
<------><------>debug("%s - controller_id = %x\n", __func__, ptr->controller_id);
 
<------><------>debug("%s - slots_at_33_conv = %x\n", __func__, ptr->slots_at_33_conv);
<------><------>debug("%s - slots_at_66_conv = %x\n", __func__, ptr->slots_at_66_conv);
<------><------>debug("%s - slots_at_66_pcix = %x\n", __func__, ptr->slots_at_66_pcix);
<------><------>debug("%s - slots_at_100_pcix = %x\n", __func__, ptr->slots_at_100_pcix);
<------><------>debug("%s - slots_at_133_pcix = %x\n", __func__, ptr->slots_at_133_pcix);
 
<------>}
}
 
static void print_lo_info(void)
{
<------>struct rio_detail *ptr;
<------>debug("print_lo_info ----\n");
<------>list_for_each_entry(ptr, &rio_lo_head, rio_detail_list) {
<------><------>debug("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id);
<------><------>debug("%s - rio_type = %x\n", __func__, ptr->rio_type);
<------><------>debug("%s - owner_id = %x\n", __func__, ptr->owner_id);
<------><------>debug("%s - first_slot_num = %x\n", __func__, ptr->first_slot_num);
<------><------>debug("%s - wpindex = %x\n", __func__, ptr->wpindex);
<------><------>debug("%s - chassis_num = %x\n", __func__, ptr->chassis_num);
 
<------>}
}
 
static void print_vg_info(void)
{
<------>struct rio_detail *ptr;
<------>debug("%s ---\n", __func__);
<------>list_for_each_entry(ptr, &rio_vg_head, rio_detail_list) {
<------><------>debug("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id);
<------><------>debug("%s - rio_type = %x\n", __func__, ptr->rio_type);
<------><------>debug("%s - owner_id = %x\n", __func__, ptr->owner_id);
<------><------>debug("%s - first_slot_num = %x\n", __func__, ptr->first_slot_num);
<------><------>debug("%s - wpindex = %x\n", __func__, ptr->wpindex);
<------><------>debug("%s - chassis_num = %x\n", __func__, ptr->chassis_num);
 
<------>}
}
 
static void __init print_ebda_pci_rsrc(void)
{
<------>struct ebda_pci_rsrc *ptr;
 
<------>list_for_each_entry(ptr, &ibmphp_ebda_pci_rsrc_head, ebda_pci_rsrc_list) {
<------><------>debug("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n",
<------><------><------>__func__, ptr->rsrc_type, ptr->bus_num, ptr->dev_fun, ptr->start_addr, ptr->end_addr);
<------>}
}
 
static void __init print_ibm_slot(void)
{
<------>struct slot *ptr;
 
<------>list_for_each_entry(ptr, &ibmphp_slot_head, ibm_slot_list) {
<------><------>debug("%s - slot_number: %x\n", __func__, ptr->number);
<------>}
}
 
static void __init print_opt_vg(void)
{
<------>struct opt_rio *ptr;
<------>debug("%s ---\n", __func__);
<------>list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) {
<------><------>debug("%s - rio_type %x\n", __func__, ptr->rio_type);
<------><------>debug("%s - chassis_num: %x\n", __func__, ptr->chassis_num);
<------><------>debug("%s - first_slot_num: %x\n", __func__, ptr->first_slot_num);
<------><------>debug("%s - middle_num: %x\n", __func__, ptr->middle_num);
<------>}
}
 
static void __init print_ebda_hpc(void)
{
<------>struct controller *hpc_ptr;
<------>u16 index;
 
<------>list_for_each_entry(hpc_ptr, &ebda_hpc_head, ebda_hpc_list) {
<------><------>for (index = 0; index < hpc_ptr->slot_count; index++) {
<------><------><------>debug("%s - physical slot#: %x\n", __func__, hpc_ptr->slots[index].slot_num);
<------><------><------>debug("%s - pci bus# of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_bus_num);
<------><------><------>debug("%s - index into ctlr addr: %x\n", __func__, hpc_ptr->slots[index].ctl_index);
<------><------><------>debug("%s - cap of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_cap);
<------><------>}
 
<------><------>for (index = 0; index < hpc_ptr->bus_count; index++)
<------><------><------>debug("%s - bus# of each bus controlled by this ctlr: %x\n", __func__, hpc_ptr->buses[index].bus_num);
 
<------><------>debug("%s - type of hpc: %x\n", __func__, hpc_ptr->ctlr_type);
<------><------>switch (hpc_ptr->ctlr_type) {
<------><------>case 1:
<------><------><------>debug("%s - bus: %x\n", __func__, hpc_ptr->u.pci_ctlr.bus);
<------><------><------>debug("%s - dev_fun: %x\n", __func__, hpc_ptr->u.pci_ctlr.dev_fun);
<------><------><------>debug("%s - irq: %x\n", __func__, hpc_ptr->irq);
<------><------><------>break;
 
<------><------>case 0:
<------><------><------>debug("%s - io_start: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_start);
<------><------><------>debug("%s - io_end: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_end);
<------><------><------>debug("%s - irq: %x\n", __func__, hpc_ptr->irq);
<------><------><------>break;
 
<------><------>case 2:
<------><------>case 4:
<------><------><------>debug("%s - wpegbbar: %lx\n", __func__, hpc_ptr->u.wpeg_ctlr.wpegbbar);
<------><------><------>debug("%s - i2c_addr: %x\n", __func__, hpc_ptr->u.wpeg_ctlr.i2c_addr);
<------><------><------>debug("%s - irq: %x\n", __func__, hpc_ptr->irq);
<------><------><------>break;
<------><------>}
<------>}
}
 
int __init ibmphp_access_ebda(void)
{
<------>u8 format, num_ctlrs, rio_complete, hs_complete, ebda_sz;
<------>u16 ebda_seg, num_entries, next_offset, offset, blk_id, sub_addr, re, rc_id, re_id, base;
<------>int rc = 0;
 
 
<------>rio_complete = 0;
<------>hs_complete = 0;
 
<------>io_mem = ioremap((0x40 << 4) + 0x0e, 2);
<------>if (!io_mem)
<------><------>return -ENOMEM;
<------>ebda_seg = readw(io_mem);
<------>iounmap(io_mem);
<------>debug("returned ebda segment: %x\n", ebda_seg);
 
<------>io_mem = ioremap(ebda_seg<<4, 1);
<------>if (!io_mem)
<------><------>return -ENOMEM;
<------>ebda_sz = readb(io_mem);
<------>iounmap(io_mem);
<------>debug("ebda size: %d(KiB)\n", ebda_sz);
<------>if (ebda_sz == 0)
<------><------>return -ENOMEM;
 
<------>io_mem = ioremap(ebda_seg<<4, (ebda_sz * 1024));
<------>if (!io_mem)
<------><------>return -ENOMEM;
<------>next_offset = 0x180;
 
<------>for (;;) {
<------><------>offset = next_offset;
 
<------><------>/* Make sure what we read is still in the mapped section */
<------><------>if (WARN(offset > (ebda_sz * 1024 - 4),
<------><------><------> "ibmphp_ebda: next read is beyond ebda_sz\n"))
<------><------><------>break;
 
<------><------>next_offset = readw(io_mem + offset);	/* offset of next blk */
 
<------><------>offset += 2;
<------><------>if (next_offset == 0)	/* 0 indicate it's last blk */
<------><------><------>break;
<------><------>blk_id = readw(io_mem + offset);	/* this blk id */
 
<------><------>offset += 2;
<------><------>/* check if it is hot swap block or rio block */
<------><------>if (blk_id != 0x4853 && blk_id != 0x4752)
<------><------><------>continue;
<------><------>/* found hs table */
<------><------>if (blk_id == 0x4853) {
<------><------><------>debug("now enter hot swap block---\n");
<------><------><------>debug("hot blk id: %x\n", blk_id);
<------><------><------>format = readb(io_mem + offset);
 
<------><------><------>offset += 1;
<------><------><------>if (format != 4)
<------><------><------><------>goto error_nodev;
<------><------><------>debug("hot blk format: %x\n", format);
<------><------><------>/* hot swap sub blk */
<------><------><------>base = offset;
 
<------><------><------>sub_addr = base;
<------><------><------>re = readw(io_mem + sub_addr);	/* next sub blk */
 
<------><------><------>sub_addr += 2;
<------><------><------>rc_id = readw(io_mem + sub_addr);	/* sub blk id */
 
<------><------><------>sub_addr += 2;
<------><------><------>if (rc_id != 0x5243)
<------><------><------><------>goto error_nodev;
<------><------><------>/* rc sub blk signature  */
<------><------><------>num_ctlrs = readb(io_mem + sub_addr);
 
<------><------><------>sub_addr += 1;
<------><------><------>hpc_list_ptr = alloc_ebda_hpc_list();
<------><------><------>if (!hpc_list_ptr) {
<------><------><------><------>rc = -ENOMEM;
<------><------><------><------>goto out;
<------><------><------>}
<------><------><------>hpc_list_ptr->format = format;
<------><------><------>hpc_list_ptr->num_ctlrs = num_ctlrs;
<------><------><------>hpc_list_ptr->phys_addr = sub_addr;	/*  offset of RSRC_CONTROLLER blk */
<------><------><------>debug("info about hpc descriptor---\n");
<------><------><------>debug("hot blk format: %x\n", format);
<------><------><------>debug("num of controller: %x\n", num_ctlrs);
<------><------><------>debug("offset of hpc data structure entries: %x\n ", sub_addr);
 
<------><------><------>sub_addr = base + re;	/* re sub blk */
<------><------><------>/* FIXME: rc is never used/checked */
<------><------><------>rc = readw(io_mem + sub_addr);	/* next sub blk */
 
<------><------><------>sub_addr += 2;
<------><------><------>re_id = readw(io_mem + sub_addr);	/* sub blk id */
 
<------><------><------>sub_addr += 2;
<------><------><------>if (re_id != 0x5245)
<------><------><------><------>goto error_nodev;
 
<------><------><------>/* signature of re */
<------><------><------>num_entries = readw(io_mem + sub_addr);
 
<------><------><------>sub_addr += 2;	/* offset of RSRC_ENTRIES blk */
<------><------><------>rsrc_list_ptr = alloc_ebda_rsrc_list();
<------><------><------>if (!rsrc_list_ptr) {
<------><------><------><------>rc = -ENOMEM;
<------><------><------><------>goto out;
<------><------><------>}
<------><------><------>rsrc_list_ptr->format = format;
<------><------><------>rsrc_list_ptr->num_entries = num_entries;
<------><------><------>rsrc_list_ptr->phys_addr = sub_addr;
 
<------><------><------>debug("info about rsrc descriptor---\n");
<------><------><------>debug("format: %x\n", format);
<------><------><------>debug("num of rsrc: %x\n", num_entries);
<------><------><------>debug("offset of rsrc data structure entries: %x\n ", sub_addr);
 
<------><------><------>hs_complete = 1;
<------><------>} else {
<------><------>/* found rio table, blk_id == 0x4752 */
<------><------><------>debug("now enter io table ---\n");
<------><------><------>debug("rio blk id: %x\n", blk_id);
 
<------><------><------>rio_table_ptr = kzalloc(sizeof(struct rio_table_hdr), GFP_KERNEL);
<------><------><------>if (!rio_table_ptr) {
<------><------><------><------>rc = -ENOMEM;
<------><------><------><------>goto out;
<------><------><------>}
<------><------><------>rio_table_ptr->ver_num = readb(io_mem + offset);
<------><------><------>rio_table_ptr->scal_count = readb(io_mem + offset + 1);
<------><------><------>rio_table_ptr->riodev_count = readb(io_mem + offset + 2);
<------><------><------>rio_table_ptr->offset = offset + 3 ;
 
<------><------><------>debug("info about rio table hdr ---\n");
<------><------><------>debug("ver_num: %x\nscal_count: %x\nriodev_count: %x\noffset of rio table: %x\n ",
<------><------><------><------>rio_table_ptr->ver_num, rio_table_ptr->scal_count,
<------><------><------><------>rio_table_ptr->riodev_count, rio_table_ptr->offset);
 
<------><------><------>rio_complete = 1;
<------><------>}
<------>}
 
<------>if (!hs_complete && !rio_complete)
<------><------>goto error_nodev;
 
<------>if (rio_table_ptr) {
<------><------>if (rio_complete && rio_table_ptr->ver_num == 3) {
<------><------><------>rc = ebda_rio_table();
<------><------><------>if (rc)
<------><------><------><------>goto out;
<------><------>}
<------>}
<------>rc = ebda_rsrc_controller();
<------>if (rc)
<------><------>goto out;
 
<------>rc = ebda_rsrc_rsrc();
<------>goto out;
error_nodev:
<------>rc = -ENODEV;
out:
<------>iounmap(io_mem);
<------>return rc;
}
 
/*
 * map info of scalability details and rio details from physical address
 */
static int __init ebda_rio_table(void)
{
<------>u16 offset;
<------>u8 i;
<------>struct rio_detail *rio_detail_ptr;
 
<------>offset = rio_table_ptr->offset;
<------>offset += 12 * rio_table_ptr->scal_count;
 
<------>// we do concern about rio details
<------>for (i = 0; i < rio_table_ptr->riodev_count; i++) {
<------><------>rio_detail_ptr = kzalloc(sizeof(struct rio_detail), GFP_KERNEL);
<------><------>if (!rio_detail_ptr)
<------><------><------>return -ENOMEM;
<------><------>rio_detail_ptr->rio_node_id = readb(io_mem + offset);
<------><------>rio_detail_ptr->bbar = readl(io_mem + offset + 1);
<------><------>rio_detail_ptr->rio_type = readb(io_mem + offset + 5);
<------><------>rio_detail_ptr->owner_id = readb(io_mem + offset + 6);
<------><------>rio_detail_ptr->port0_node_connect = readb(io_mem + offset + 7);
<------><------>rio_detail_ptr->port0_port_connect = readb(io_mem + offset + 8);
<------><------>rio_detail_ptr->port1_node_connect = readb(io_mem + offset + 9);
<------><------>rio_detail_ptr->port1_port_connect = readb(io_mem + offset + 10);
<------><------>rio_detail_ptr->first_slot_num = readb(io_mem + offset + 11);
<------><------>rio_detail_ptr->status = readb(io_mem + offset + 12);
<------><------>rio_detail_ptr->wpindex = readb(io_mem + offset + 13);
<------><------>rio_detail_ptr->chassis_num = readb(io_mem + offset + 14);
//		debug("rio_node_id: %x\nbbar: %x\nrio_type: %x\nowner_id: %x\nport0_node: %x\nport0_port: %x\nport1_node: %x\nport1_port: %x\nfirst_slot_num: %x\nstatus: %x\n", rio_detail_ptr->rio_node_id, rio_detail_ptr->bbar, rio_detail_ptr->rio_type, rio_detail_ptr->owner_id, rio_detail_ptr->port0_node_connect, rio_detail_ptr->port0_port_connect, rio_detail_ptr->port1_node_connect, rio_detail_ptr->port1_port_connect, rio_detail_ptr->first_slot_num, rio_detail_ptr->status);
<------><------>//create linked list of chassis
<------><------>if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5)
<------><------><------>list_add(&rio_detail_ptr->rio_detail_list, &rio_vg_head);
<------><------>//create linked list of expansion box
<------><------>else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7)
<------><------><------>list_add(&rio_detail_ptr->rio_detail_list, &rio_lo_head);
<------><------>else
<------><------><------>// not in my concern
<------><------><------>kfree(rio_detail_ptr);
<------><------>offset += 15;
<------>}
<------>print_lo_info();
<------>print_vg_info();
<------>return 0;
}
 
/*
 * reorganizing linked list of chassis
 */
static struct opt_rio *search_opt_vg(u8 chassis_num)
{
<------>struct opt_rio *ptr;
<------>list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) {
<------><------>if (ptr->chassis_num == chassis_num)
<------><------><------>return ptr;
<------>}
<------>return NULL;
}
 
static int __init combine_wpg_for_chassis(void)
{
<------>struct opt_rio *opt_rio_ptr = NULL;
<------>struct rio_detail *rio_detail_ptr = NULL;
 
<------>list_for_each_entry(rio_detail_ptr, &rio_vg_head, rio_detail_list) {
<------><------>opt_rio_ptr = search_opt_vg(rio_detail_ptr->chassis_num);
<------><------>if (!opt_rio_ptr) {
<------><------><------>opt_rio_ptr = kzalloc(sizeof(struct opt_rio), GFP_KERNEL);
<------><------><------>if (!opt_rio_ptr)
<------><------><------><------>return -ENOMEM;
<------><------><------>opt_rio_ptr->rio_type = rio_detail_ptr->rio_type;
<------><------><------>opt_rio_ptr->chassis_num = rio_detail_ptr->chassis_num;
<------><------><------>opt_rio_ptr->first_slot_num = rio_detail_ptr->first_slot_num;
<------><------><------>opt_rio_ptr->middle_num = rio_detail_ptr->first_slot_num;
<------><------><------>list_add(&opt_rio_ptr->opt_rio_list, &opt_vg_head);
<------><------>} else {
<------><------><------>opt_rio_ptr->first_slot_num = min(opt_rio_ptr->first_slot_num, rio_detail_ptr->first_slot_num);
<------><------><------>opt_rio_ptr->middle_num = max(opt_rio_ptr->middle_num, rio_detail_ptr->first_slot_num);
<------><------>}
<------>}
<------>print_opt_vg();
<------>return 0;
}
 
/*
 * reorganizing linked list of expansion box
 */
static struct opt_rio_lo *search_opt_lo(u8 chassis_num)
{
<------>struct opt_rio_lo *ptr;
<------>list_for_each_entry(ptr, &opt_lo_head, opt_rio_lo_list) {
<------><------>if (ptr->chassis_num == chassis_num)
<------><------><------>return ptr;
<------>}
<------>return NULL;
}
 
static int combine_wpg_for_expansion(void)
{
<------>struct opt_rio_lo *opt_rio_lo_ptr = NULL;
<------>struct rio_detail *rio_detail_ptr = NULL;
 
<------>list_for_each_entry(rio_detail_ptr, &rio_lo_head, rio_detail_list) {
<------><------>opt_rio_lo_ptr = search_opt_lo(rio_detail_ptr->chassis_num);
<------><------>if (!opt_rio_lo_ptr) {
<------><------><------>opt_rio_lo_ptr = kzalloc(sizeof(struct opt_rio_lo), GFP_KERNEL);
<------><------><------>if (!opt_rio_lo_ptr)
<------><------><------><------>return -ENOMEM;
<------><------><------>opt_rio_lo_ptr->rio_type = rio_detail_ptr->rio_type;
<------><------><------>opt_rio_lo_ptr->chassis_num = rio_detail_ptr->chassis_num;
<------><------><------>opt_rio_lo_ptr->first_slot_num = rio_detail_ptr->first_slot_num;
<------><------><------>opt_rio_lo_ptr->middle_num = rio_detail_ptr->first_slot_num;
<------><------><------>opt_rio_lo_ptr->pack_count = 1;
 
<------><------><------>list_add(&opt_rio_lo_ptr->opt_rio_lo_list, &opt_lo_head);
<------><------>} else {
<------><------><------>opt_rio_lo_ptr->first_slot_num = min(opt_rio_lo_ptr->first_slot_num, rio_detail_ptr->first_slot_num);
<------><------><------>opt_rio_lo_ptr->middle_num = max(opt_rio_lo_ptr->middle_num, rio_detail_ptr->first_slot_num);
<------><------><------>opt_rio_lo_ptr->pack_count = 2;
<------><------>}
<------>}
<------>return 0;
}
 
 
/* Since we don't know the max slot number per each chassis, hence go
 * through the list of all chassis to find out the range
 * Arguments: slot_num, 1st slot number of the chassis we think we are on,
 * var (0 = chassis, 1 = expansion box)
 */
static int first_slot_num(u8 slot_num, u8 first_slot, u8 var)
{
<------>struct opt_rio *opt_vg_ptr = NULL;
<------>struct opt_rio_lo *opt_lo_ptr = NULL;
<------>int rc = 0;
 
<------>if (!var) {
<------><------>list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) {
<------><------><------>if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) {
<------><------><------><------>rc = -ENODEV;
<------><------><------><------>break;
<------><------><------>}
<------><------>}
<------>} else {
<------><------>list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) {
<------><------><------>if ((first_slot < opt_lo_ptr->first_slot_num) && (slot_num >= opt_lo_ptr->first_slot_num)) {
<------><------><------><------>rc = -ENODEV;
<------><------><------><------>break;
<------><------><------>}
<------><------>}
<------>}
<------>return rc;
}
 
static struct opt_rio_lo *find_rxe_num(u8 slot_num)
{
<------>struct opt_rio_lo *opt_lo_ptr;
 
<------>list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) {
<------><------>//check to see if this slot_num belongs to expansion box
<------><------>if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num(slot_num, opt_lo_ptr->first_slot_num, 1)))
<------><------><------>return opt_lo_ptr;
<------>}
<------>return NULL;
}
 
static struct opt_rio *find_chassis_num(u8 slot_num)
{
<------>struct opt_rio *opt_vg_ptr;
 
<------>list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) {
<------><------>//check to see if this slot_num belongs to chassis
<------><------>if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num(slot_num, opt_vg_ptr->first_slot_num, 0)))
<------><------><------>return opt_vg_ptr;
<------>}
<------>return NULL;
}
 
/* This routine will find out how many slots are in the chassis, so that
 * the slot numbers for rxe100 would start from 1, and not from 7, or 6 etc
 */
static u8 calculate_first_slot(u8 slot_num)
{
<------>u8 first_slot = 1;
<------>struct slot *slot_cur;
 
<------>list_for_each_entry(slot_cur, &ibmphp_slot_head, ibm_slot_list) {
<------><------>if (slot_cur->ctrl) {
<------><------><------>if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num))
<------><------><------><------>first_slot = slot_cur->ctrl->ending_slot_num;
<------><------>}
<------>}
<------>return first_slot + 1;
 
}
 
#define SLOT_NAME_SIZE 30
 
static char *create_file_name(struct slot *slot_cur)
{
<------>struct opt_rio *opt_vg_ptr = NULL;
<------>struct opt_rio_lo *opt_lo_ptr = NULL;
<------>static char str[SLOT_NAME_SIZE];
<------>int which = 0; /* rxe = 1, chassis = 0 */
<------>u8 number = 1; /* either chassis or rxe # */
<------>u8 first_slot = 1;
<------>u8 slot_num;
<------>u8 flag = 0;
 
<------>if (!slot_cur) {
<------><------>err("Structure passed is empty\n");
<------><------>return NULL;
<------>}
 
<------>slot_num = slot_cur->number;
 
<------>memset(str, 0, sizeof(str));
 
<------>if (rio_table_ptr) {
<------><------>if (rio_table_ptr->ver_num == 3) {
<------><------><------>opt_vg_ptr = find_chassis_num(slot_num);
<------><------><------>opt_lo_ptr = find_rxe_num(slot_num);
<------><------>}
<------>}
<------>if (opt_vg_ptr) {
<------><------>if (opt_lo_ptr) {
<------><------><------>if ((slot_num - opt_vg_ptr->first_slot_num) > (slot_num - opt_lo_ptr->first_slot_num)) {
<------><------><------><------>number = opt_lo_ptr->chassis_num;
<------><------><------><------>first_slot = opt_lo_ptr->first_slot_num;
<------><------><------><------>which = 1; /* it is RXE */
<------><------><------>} else {
<------><------><------><------>first_slot = opt_vg_ptr->first_slot_num;
<------><------><------><------>number = opt_vg_ptr->chassis_num;
<------><------><------><------>which = 0;
<------><------><------>}
<------><------>} else {
<------><------><------>first_slot = opt_vg_ptr->first_slot_num;
<------><------><------>number = opt_vg_ptr->chassis_num;
<------><------><------>which = 0;
<------><------>}
<------><------>++flag;
<------>} else if (opt_lo_ptr) {
<------><------>number = opt_lo_ptr->chassis_num;
<------><------>first_slot = opt_lo_ptr->first_slot_num;
<------><------>which = 1;
<------><------>++flag;
<------>} else if (rio_table_ptr) {
<------><------>if (rio_table_ptr->ver_num == 3) {
<------><------><------>/* if both NULL and we DO have correct RIO table in BIOS */
<------><------><------>return NULL;
<------><------>}
<------>}
<------>if (!flag) {
<------><------>if (slot_cur->ctrl->ctlr_type == 4) {
<------><------><------>first_slot = calculate_first_slot(slot_num);
<------><------><------>which = 1;
<------><------>} else {
<------><------><------>which = 0;
<------><------>}
<------>}
 
<------>sprintf(str, "%s%dslot%d",
<------><------>which == 0 ? "chassis" : "rxe",
<------><------>number, slot_num - first_slot + 1);
<------>return str;
}
 
static int fillslotinfo(struct hotplug_slot *hotplug_slot)
{
<------>struct slot *slot;
<------>int rc = 0;
 
<------>slot = to_slot(hotplug_slot);
<------>rc = ibmphp_hpc_readslot(slot, READ_ALLSTAT, NULL);
<------>return rc;
}
 
static struct pci_driver ibmphp_driver;
 
/*
 * map info (ctlr-id, slot count, slot#.. bus count, bus#, ctlr type...) of
 * each hpc from physical address to a list of hot plug controllers based on
 * hpc descriptors.
 */
static int __init ebda_rsrc_controller(void)
{
<------>u16 addr, addr_slot, addr_bus;
<------>u8 ctlr_id, temp, bus_index;
<------>u16 ctlr, slot, bus;
<------>u16 slot_num, bus_num, index;
<------>struct controller *hpc_ptr;
<------>struct ebda_hpc_bus *bus_ptr;
<------>struct ebda_hpc_slot *slot_ptr;
<------>struct bus_info *bus_info_ptr1, *bus_info_ptr2;
<------>int rc;
<------>struct slot *tmp_slot;
<------>char name[SLOT_NAME_SIZE];
 
<------>addr = hpc_list_ptr->phys_addr;
<------>for (ctlr = 0; ctlr < hpc_list_ptr->num_ctlrs; ctlr++) {
<------><------>bus_index = 1;
<------><------>ctlr_id = readb(io_mem + addr);
<------><------>addr += 1;
<------><------>slot_num = readb(io_mem + addr);
 
<------><------>addr += 1;
<------><------>addr_slot = addr;	/* offset of slot structure */
<------><------>addr += (slot_num * 4);
 
<------><------>bus_num = readb(io_mem + addr);
 
<------><------>addr += 1;
<------><------>addr_bus = addr;	/* offset of bus */
<------><------>addr += (bus_num * 9);	/* offset of ctlr_type */
<------><------>temp = readb(io_mem + addr);
 
<------><------>addr += 1;
<------><------>/* init hpc structure */
<------><------>hpc_ptr = alloc_ebda_hpc(slot_num, bus_num);
<------><------>if (!hpc_ptr) {
<------><------><------>return -ENOMEM;
<------><------>}
<------><------>hpc_ptr->ctlr_id = ctlr_id;
<------><------>hpc_ptr->ctlr_relative_id = ctlr;
<------><------>hpc_ptr->slot_count = slot_num;
<------><------>hpc_ptr->bus_count = bus_num;
<------><------>debug("now enter ctlr data structure ---\n");
<------><------>debug("ctlr id: %x\n", ctlr_id);
<------><------>debug("ctlr_relative_id: %x\n", hpc_ptr->ctlr_relative_id);
<------><------>debug("count of slots controlled by this ctlr: %x\n", slot_num);
<------><------>debug("count of buses controlled by this ctlr: %x\n", bus_num);
 
<------><------>/* init slot structure, fetch slot, bus, cap... */
<------><------>slot_ptr = hpc_ptr->slots;
<------><------>for (slot = 0; slot < slot_num; slot++) {
<------><------><------>slot_ptr->slot_num = readb(io_mem + addr_slot);
<------><------><------>slot_ptr->slot_bus_num = readb(io_mem + addr_slot + slot_num);
<------><------><------>slot_ptr->ctl_index = readb(io_mem + addr_slot + 2*slot_num);
<------><------><------>slot_ptr->slot_cap = readb(io_mem + addr_slot + 3*slot_num);
 
<------><------><------>// create bus_info lined list --- if only one slot per bus: slot_min = slot_max
 
<------><------><------>bus_info_ptr2 = ibmphp_find_same_bus_num(slot_ptr->slot_bus_num);
<------><------><------>if (!bus_info_ptr2) {
<------><------><------><------>bus_info_ptr1 = kzalloc(sizeof(struct bus_info), GFP_KERNEL);
<------><------><------><------>if (!bus_info_ptr1) {
<------><------><------><------><------>rc = -ENOMEM;
<------><------><------><------><------>goto error_no_slot;
<------><------><------><------>}
<------><------><------><------>bus_info_ptr1->slot_min = slot_ptr->slot_num;
<------><------><------><------>bus_info_ptr1->slot_max = slot_ptr->slot_num;
<------><------><------><------>bus_info_ptr1->slot_count += 1;
<------><------><------><------>bus_info_ptr1->busno = slot_ptr->slot_bus_num;
<------><------><------><------>bus_info_ptr1->index = bus_index++;
<------><------><------><------>bus_info_ptr1->current_speed = 0xff;
<------><------><------><------>bus_info_ptr1->current_bus_mode = 0xff;
 
<------><------><------><------>bus_info_ptr1->controller_id = hpc_ptr->ctlr_id;
 
<------><------><------><------>list_add_tail(&bus_info_ptr1->bus_info_list, &bus_info_head);
 
<------><------><------>} else {
<------><------><------><------>bus_info_ptr2->slot_min = min(bus_info_ptr2->slot_min, slot_ptr->slot_num);
<------><------><------><------>bus_info_ptr2->slot_max = max(bus_info_ptr2->slot_max, slot_ptr->slot_num);
<------><------><------><------>bus_info_ptr2->slot_count += 1;
 
<------><------><------>}
 
<------><------><------>// end of creating the bus_info linked list
 
<------><------><------>slot_ptr++;
<------><------><------>addr_slot += 1;
<------><------>}
 
<------><------>/* init bus structure */
<------><------>bus_ptr = hpc_ptr->buses;
<------><------>for (bus = 0; bus < bus_num; bus++) {
<------><------><------>bus_ptr->bus_num = readb(io_mem + addr_bus + bus);
<------><------><------>bus_ptr->slots_at_33_conv = readb(io_mem + addr_bus + bus_num + 8 * bus);
<------><------><------>bus_ptr->slots_at_66_conv = readb(io_mem + addr_bus + bus_num + 8 * bus + 1);
 
<------><------><------>bus_ptr->slots_at_66_pcix = readb(io_mem + addr_bus + bus_num + 8 * bus + 2);
 
<------><------><------>bus_ptr->slots_at_100_pcix = readb(io_mem + addr_bus + bus_num + 8 * bus + 3);
 
<------><------><------>bus_ptr->slots_at_133_pcix = readb(io_mem + addr_bus + bus_num + 8 * bus + 4);
 
<------><------><------>bus_info_ptr2 = ibmphp_find_same_bus_num(bus_ptr->bus_num);
<------><------><------>if (bus_info_ptr2) {
<------><------><------><------>bus_info_ptr2->slots_at_33_conv = bus_ptr->slots_at_33_conv;
<------><------><------><------>bus_info_ptr2->slots_at_66_conv = bus_ptr->slots_at_66_conv;
<------><------><------><------>bus_info_ptr2->slots_at_66_pcix = bus_ptr->slots_at_66_pcix;
<------><------><------><------>bus_info_ptr2->slots_at_100_pcix = bus_ptr->slots_at_100_pcix;
<------><------><------><------>bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix;
<------><------><------>}
<------><------><------>bus_ptr++;
<------><------>}
 
<------><------>hpc_ptr->ctlr_type = temp;
 
<------><------>switch (hpc_ptr->ctlr_type) {
<------><------><------>case 1:
<------><------><------><------>hpc_ptr->u.pci_ctlr.bus = readb(io_mem + addr);
<------><------><------><------>hpc_ptr->u.pci_ctlr.dev_fun = readb(io_mem + addr + 1);
<------><------><------><------>hpc_ptr->irq = readb(io_mem + addr + 2);
<------><------><------><------>addr += 3;
<------><------><------><------>debug("ctrl bus = %x, ctlr devfun = %x, irq = %x\n",
<------><------><------><------><------>hpc_ptr->u.pci_ctlr.bus,
<------><------><------><------><------>hpc_ptr->u.pci_ctlr.dev_fun, hpc_ptr->irq);
<------><------><------><------>break;
 
<------><------><------>case 0:
<------><------><------><------>hpc_ptr->u.isa_ctlr.io_start = readw(io_mem + addr);
<------><------><------><------>hpc_ptr->u.isa_ctlr.io_end = readw(io_mem + addr + 2);
<------><------><------><------>if (!request_region(hpc_ptr->u.isa_ctlr.io_start,
<------><------><------><------><------><------>     (hpc_ptr->u.isa_ctlr.io_end - hpc_ptr->u.isa_ctlr.io_start + 1),
<------><------><------><------><------><------>     "ibmphp")) {
<------><------><------><------><------>rc = -ENODEV;
<------><------><------><------><------>goto error_no_slot;
<------><------><------><------>}
<------><------><------><------>hpc_ptr->irq = readb(io_mem + addr + 4);
<------><------><------><------>addr += 5;
<------><------><------><------>break;
 
<------><------><------>case 2:
<------><------><------>case 4:
<------><------><------><------>hpc_ptr->u.wpeg_ctlr.wpegbbar = readl(io_mem + addr);
<------><------><------><------>hpc_ptr->u.wpeg_ctlr.i2c_addr = readb(io_mem + addr + 4);
<------><------><------><------>hpc_ptr->irq = readb(io_mem + addr + 5);
<------><------><------><------>addr += 6;
<------><------><------><------>break;
<------><------><------>default:
<------><------><------><------>rc = -ENODEV;
<------><------><------><------>goto error_no_slot;
<------><------>}
 
<------><------>//reorganize chassis' linked list
<------><------>combine_wpg_for_chassis();
<------><------>combine_wpg_for_expansion();
<------><------>hpc_ptr->revision = 0xff;
<------><------>hpc_ptr->options = 0xff;
<------><------>hpc_ptr->starting_slot_num = hpc_ptr->slots[0].slot_num;
<------><------>hpc_ptr->ending_slot_num = hpc_ptr->slots[slot_num-1].slot_num;
 
<------><------>// register slots with hpc core as well as create linked list of ibm slot
<------><------>for (index = 0; index < hpc_ptr->slot_count; index++) {
<------><------><------>tmp_slot = kzalloc(sizeof(*tmp_slot), GFP_KERNEL);
<------><------><------>if (!tmp_slot) {
<------><------><------><------>rc = -ENOMEM;
<------><------><------><------>goto error_no_slot;
<------><------><------>}
 
<------><------><------>tmp_slot->flag = 1;
 
<------><------><------>tmp_slot->capabilities = hpc_ptr->slots[index].slot_cap;
<------><------><------>if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_133_MAX) == EBDA_SLOT_133_MAX)
<------><------><------><------>tmp_slot->supported_speed =  3;
<------><------><------>else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_100_MAX) == EBDA_SLOT_100_MAX)
<------><------><------><------>tmp_slot->supported_speed =  2;
<------><------><------>else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_66_MAX) == EBDA_SLOT_66_MAX)
<------><------><------><------>tmp_slot->supported_speed =  1;
 
<------><------><------>if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_PCIX_CAP) == EBDA_SLOT_PCIX_CAP)
<------><------><------><------>tmp_slot->supported_bus_mode = 1;
<------><------><------>else
<------><------><------><------>tmp_slot->supported_bus_mode = 0;
 
 
<------><------><------>tmp_slot->bus = hpc_ptr->slots[index].slot_bus_num;
 
<------><------><------>bus_info_ptr1 = ibmphp_find_same_bus_num(hpc_ptr->slots[index].slot_bus_num);
<------><------><------>if (!bus_info_ptr1) {
<------><------><------><------>rc = -ENODEV;
<------><------><------><------>goto error;
<------><------><------>}
<------><------><------>tmp_slot->bus_on = bus_info_ptr1;
<------><------><------>bus_info_ptr1 = NULL;
<------><------><------>tmp_slot->ctrl = hpc_ptr;
 
<------><------><------>tmp_slot->ctlr_index = hpc_ptr->slots[index].ctl_index;
<------><------><------>tmp_slot->number = hpc_ptr->slots[index].slot_num;
 
<------><------><------>rc = fillslotinfo(&tmp_slot->hotplug_slot);
<------><------><------>if (rc)
<------><------><------><------>goto error;
 
<------><------><------>rc = ibmphp_init_devno(&tmp_slot);
<------><------><------>if (rc)
<------><------><------><------>goto error;
<------><------><------>tmp_slot->hotplug_slot.ops = &ibmphp_hotplug_slot_ops;
 
<------><------><------>// end of registering ibm slot with hotplug core
 
<------><------><------>list_add(&tmp_slot->ibm_slot_list, &ibmphp_slot_head);
<------><------>}
 
<------><------>print_bus_info();
<------><------>list_add(&hpc_ptr->ebda_hpc_list, &ebda_hpc_head);
 
<------>}			/* each hpc  */
 
<------>list_for_each_entry(tmp_slot, &ibmphp_slot_head, ibm_slot_list) {
<------><------>snprintf(name, SLOT_NAME_SIZE, "%s", create_file_name(tmp_slot));
<------><------>pci_hp_register(&tmp_slot->hotplug_slot,
<------><------><------>pci_find_bus(0, tmp_slot->bus), tmp_slot->device, name);
<------>}
 
<------>print_ebda_hpc();
<------>print_ibm_slot();
<------>return 0;
 
error:
<------>kfree(tmp_slot);
error_no_slot:
<------>free_ebda_hpc(hpc_ptr);
<------>return rc;
}
 
/*
 * map info (bus, devfun, start addr, end addr..) of i/o, memory,
 * pfm from the physical addr to a list of resource.
 */
static int __init ebda_rsrc_rsrc(void)
{
<------>u16 addr;
<------>short rsrc;
<------>u8 type, rsrc_type;
<------>struct ebda_pci_rsrc *rsrc_ptr;
 
<------>addr = rsrc_list_ptr->phys_addr;
<------>debug("now entering rsrc land\n");
<------>debug("offset of rsrc: %x\n", rsrc_list_ptr->phys_addr);
 
<------>for (rsrc = 0; rsrc < rsrc_list_ptr->num_entries; rsrc++) {
<------><------>type = readb(io_mem + addr);
 
<------><------>addr += 1;
<------><------>rsrc_type = type & EBDA_RSRC_TYPE_MASK;
 
<------><------>if (rsrc_type == EBDA_IO_RSRC_TYPE) {
<------><------><------>rsrc_ptr = alloc_ebda_pci_rsrc();
<------><------><------>if (!rsrc_ptr) {
<------><------><------><------>iounmap(io_mem);
<------><------><------><------>return -ENOMEM;
<------><------><------>}
<------><------><------>rsrc_ptr->rsrc_type = type;
 
<------><------><------>rsrc_ptr->bus_num = readb(io_mem + addr);
<------><------><------>rsrc_ptr->dev_fun = readb(io_mem + addr + 1);
<------><------><------>rsrc_ptr->start_addr = readw(io_mem + addr + 2);
<------><------><------>rsrc_ptr->end_addr = readw(io_mem + addr + 4);
<------><------><------>addr += 6;
 
<------><------><------>debug("rsrc from io type ----\n");
<------><------><------>debug("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n",
<------><------><------><------>rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr);
 
<------><------><------>list_add(&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head);
<------><------>}
 
<------><------>if (rsrc_type == EBDA_MEM_RSRC_TYPE || rsrc_type == EBDA_PFM_RSRC_TYPE) {
<------><------><------>rsrc_ptr = alloc_ebda_pci_rsrc();
<------><------><------>if (!rsrc_ptr) {
<------><------><------><------>iounmap(io_mem);
<------><------><------><------>return -ENOMEM;
<------><------><------>}
<------><------><------>rsrc_ptr->rsrc_type = type;
 
<------><------><------>rsrc_ptr->bus_num = readb(io_mem + addr);
<------><------><------>rsrc_ptr->dev_fun = readb(io_mem + addr + 1);
<------><------><------>rsrc_ptr->start_addr = readl(io_mem + addr + 2);
<------><------><------>rsrc_ptr->end_addr = readl(io_mem + addr + 6);
<------><------><------>addr += 10;
 
<------><------><------>debug("rsrc from mem or pfm ---\n");
<------><------><------>debug("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n",
<------><------><------><------>rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr);
 
<------><------><------>list_add(&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head);
<------><------>}
<------>}
<------>kfree(rsrc_list_ptr);
<------>rsrc_list_ptr = NULL;
<------>print_ebda_pci_rsrc();
<------>return 0;
}
 
u16 ibmphp_get_total_controllers(void)
{
<------>return hpc_list_ptr->num_ctlrs;
}
 
struct slot *ibmphp_get_slot_from_physical_num(u8 physical_num)
{
<------>struct slot *slot;
 
<------>list_for_each_entry(slot, &ibmphp_slot_head, ibm_slot_list) {
<------><------>if (slot->number == physical_num)
<------><------><------>return slot;
<------>}
<------>return NULL;
}
 
/* To find:
 *	- the smallest slot number
 *	- the largest slot number
 *	- the total number of the slots based on each bus
 *	  (if only one slot per bus slot_min = slot_max )
 */
struct bus_info *ibmphp_find_same_bus_num(u32 num)
{
<------>struct bus_info *ptr;
 
<------>list_for_each_entry(ptr, &bus_info_head, bus_info_list) {
<------><------>if (ptr->busno == num)
<------><------><------> return ptr;
<------>}
<------>return NULL;
}
 
/*  Finding relative bus number, in order to map corresponding
 *  bus register
 */
int ibmphp_get_bus_index(u8 num)
{
<------>struct bus_info *ptr;
 
<------>list_for_each_entry(ptr, &bus_info_head, bus_info_list) {
<------><------>if (ptr->busno == num)
<------><------><------>return ptr->index;
<------>}
<------>return -ENODEV;
}
 
void ibmphp_free_bus_info_queue(void)
{
<------>struct bus_info *bus_info, *next;
 
<------>list_for_each_entry_safe(bus_info, next, &bus_info_head,
<------><------><------><------> bus_info_list) {
<------><------>kfree (bus_info);
<------>}
}
 
void ibmphp_free_ebda_hpc_queue(void)
{
<------>struct controller *controller = NULL, *next;
<------>int pci_flag = 0;
 
<------>list_for_each_entry_safe(controller, next, &ebda_hpc_head,
<------><------><------><------> ebda_hpc_list) {
<------><------>if (controller->ctlr_type == 0)
<------><------><------>release_region(controller->u.isa_ctlr.io_start, (controller->u.isa_ctlr.io_end - controller->u.isa_ctlr.io_start + 1));
<------><------>else if ((controller->ctlr_type == 1) && (!pci_flag)) {
<------><------><------>++pci_flag;
<------><------><------>pci_unregister_driver(&ibmphp_driver);
<------><------>}
<------><------>free_ebda_hpc(controller);
<------>}
}
 
void ibmphp_free_ebda_pci_rsrc_queue(void)
{
<------>struct ebda_pci_rsrc *resource, *next;
 
<------>list_for_each_entry_safe(resource, next, &ibmphp_ebda_pci_rsrc_head,
<------><------><------><------> ebda_pci_rsrc_list) {
<------><------>kfree (resource);
<------><------>resource = NULL;
<------>}
}
 
static const struct pci_device_id id_table[] = {
<------>{
<------><------>.vendor		= PCI_VENDOR_ID_IBM,
<------><------>.device		= HPC_DEVICE_ID,
<------><------>.subvendor	= PCI_VENDOR_ID_IBM,
<------><------>.subdevice	= HPC_SUBSYSTEM_ID,
<------><------>.class		= ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00),
<------>}, {}
};
 
MODULE_DEVICE_TABLE(pci, id_table);
 
static int ibmphp_probe(struct pci_dev *, const struct pci_device_id *);
static struct pci_driver ibmphp_driver = {
<------>.name		= "ibmphp",
<------>.id_table	= id_table,
<------>.probe		= ibmphp_probe,
};
 
int ibmphp_register_pci(void)
{
<------>struct controller *ctrl;
<------>int rc = 0;
 
<------>list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) {
<------><------>if (ctrl->ctlr_type == 1) {
<------><------><------>rc = pci_register_driver(&ibmphp_driver);
<------><------><------>break;
<------><------>}
<------>}
<------>return rc;
}
static int ibmphp_probe(struct pci_dev *dev, const struct pci_device_id *ids)
{
<------>struct controller *ctrl;
 
<------>debug("inside ibmphp_probe\n");
 
<------>list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) {
<------><------>if (ctrl->ctlr_type == 1) {
<------><------><------>if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) {
<------><------><------><------>ctrl->ctrl_dev = dev;
<------><------><------><------>debug("found device!!!\n");
<------><------><------><------>debug("dev->device = %x, dev->subsystem_device = %x\n", dev->device, dev->subsystem_device);
<------><------><------><------>return 0;
<------><------><------>}
<------><------>}
<------>}
<------>return -ENODEV;
}