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linuxdebug/drivers/pci/hotplug/ibmphp.h

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null pointer error
2024-07-16 15:50:57 +02:00
/* SPDX-License-Identifier: GPL-2.0+ */
#ifndef __IBMPHP_H
#define __IBMPHP_H
/*
* IBM Hot Plug Controller Driver
*
* Written By: Jyoti Shah, Tong Yu, Irene Zubarev, IBM Corporation
*
* Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2001-2003 IBM Corp.
*
* All rights reserved.
*
* Send feedback to <gregkh@us.ibm.com>
*
*/
#include <linux/pci_hotplug.h>
extern int ibmphp_debug;
#if !defined(MODULE)
#define MY_NAME "ibmphpd"
#else
#define MY_NAME THIS_MODULE->name
#endif
#define debug(fmt, arg...) do { if (ibmphp_debug == 1) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)
#define debug_pci(fmt, arg...) do { if (ibmphp_debug) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg)
#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg)
/* EBDA stuff */
/***********************************************************
* SLOT CAPABILITY *
***********************************************************/
#define EBDA_SLOT_133_MAX 0x20
#define EBDA_SLOT_100_MAX 0x10
#define EBDA_SLOT_66_MAX 0x02
#define EBDA_SLOT_PCIX_CAP 0x08
/************************************************************
* RESOURCE TYPE *
************************************************************/
#define EBDA_RSRC_TYPE_MASK 0x03
#define EBDA_IO_RSRC_TYPE 0x00
#define EBDA_MEM_RSRC_TYPE 0x01
#define EBDA_PFM_RSRC_TYPE 0x03
#define EBDA_RES_RSRC_TYPE 0x02
/*************************************************************
* IO RESTRICTION TYPE *
*************************************************************/
#define EBDA_IO_RESTRI_MASK 0x0c
#define EBDA_NO_RESTRI 0x00
#define EBDA_AVO_VGA_ADDR 0x04
#define EBDA_AVO_VGA_ADDR_AND_ALIA 0x08
#define EBDA_AVO_ISA_ADDR 0x0c
/**************************************************************
* DEVICE TYPE DEF *
**************************************************************/
#define EBDA_DEV_TYPE_MASK 0x10
#define EBDA_PCI_DEV 0x10
#define EBDA_NON_PCI_DEV 0x00
/***************************************************************
* PRIMARY DEF DEFINITION *
***************************************************************/
#define EBDA_PRI_DEF_MASK 0x20
#define EBDA_PRI_PCI_BUS_INFO 0x20
#define EBDA_NORM_DEV_RSRC_INFO 0x00
//--------------------------------------------------------------
// RIO TABLE DATA STRUCTURE
//--------------------------------------------------------------
struct rio_table_hdr {
u8 ver_num;
u8 scal_count;
u8 riodev_count;
u16 offset;
};
//-------------------------------------------------------------
// SCALABILITY DETAIL
//-------------------------------------------------------------
struct scal_detail {
u8 node_id;
u32 cbar;
u8 port0_node_connect;
u8 port0_port_connect;
u8 port1_node_connect;
u8 port1_port_connect;
u8 port2_node_connect;
u8 port2_port_connect;
u8 chassis_num;
// struct list_head scal_detail_list;
};
//--------------------------------------------------------------
// RIO DETAIL
//--------------------------------------------------------------
struct rio_detail {
u8 rio_node_id;
u32 bbar;
u8 rio_type;
u8 owner_id;
u8 port0_node_connect;
u8 port0_port_connect;
u8 port1_node_connect;
u8 port1_port_connect;
u8 first_slot_num;
u8 status;
u8 wpindex;
u8 chassis_num;
struct list_head rio_detail_list;
};
struct opt_rio {
u8 rio_type;
u8 chassis_num;
u8 first_slot_num;
u8 middle_num;
struct list_head opt_rio_list;
};
struct opt_rio_lo {
u8 rio_type;
u8 chassis_num;
u8 first_slot_num;
u8 middle_num;
u8 pack_count;
struct list_head opt_rio_lo_list;
};
/****************************************************************
* HPC DESCRIPTOR NODE *
****************************************************************/
struct ebda_hpc_list {
u8 format;
u16 num_ctlrs;
short phys_addr;
// struct list_head ebda_hpc_list;
};
/*****************************************************************
* IN HPC DATA STRUCTURE, THE ASSOCIATED SLOT AND BUS *
* STRUCTURE *
*****************************************************************/
struct ebda_hpc_slot {
u8 slot_num;
u32 slot_bus_num;
u8 ctl_index;
u8 slot_cap;
};
struct ebda_hpc_bus {
u32 bus_num;
u8 slots_at_33_conv;
u8 slots_at_66_conv;
u8 slots_at_66_pcix;
u8 slots_at_100_pcix;
u8 slots_at_133_pcix;
};
/********************************************************************
* THREE TYPE OF HOT PLUG CONTROLLER *
********************************************************************/
struct isa_ctlr_access {
u16 io_start;
u16 io_end;
};
struct pci_ctlr_access {
u8 bus;
u8 dev_fun;
};
struct wpeg_i2c_ctlr_access {
ulong wpegbbar;
u8 i2c_addr;
};
#define HPC_DEVICE_ID 0x0246
#define HPC_SUBSYSTEM_ID 0x0247
#define HPC_PCI_OFFSET 0x40
/*************************************************************************
* RSTC DESCRIPTOR NODE *
*************************************************************************/
struct ebda_rsrc_list {
u8 format;
u16 num_entries;
u16 phys_addr;
struct ebda_rsrc_list *next;
};
/***************************************************************************
* PCI RSRC NODE *
***************************************************************************/
struct ebda_pci_rsrc {
u8 rsrc_type;
u8 bus_num;
u8 dev_fun;
u32 start_addr;
u32 end_addr;
u8 marked; /* for NVRAM */
struct list_head ebda_pci_rsrc_list;
};
/***********************************************************
* BUS_INFO DATE STRUCTURE *
***********************************************************/
struct bus_info {
u8 slot_min;
u8 slot_max;
u8 slot_count;
u8 busno;
u8 controller_id;
u8 current_speed;
u8 current_bus_mode;
u8 index;
u8 slots_at_33_conv;
u8 slots_at_66_conv;
u8 slots_at_66_pcix;
u8 slots_at_100_pcix;
u8 slots_at_133_pcix;
struct list_head bus_info_list;
};
/***********************************************************
* GLOBAL VARIABLES *
***********************************************************/
extern struct list_head ibmphp_ebda_pci_rsrc_head;
extern struct list_head ibmphp_slot_head;
/***********************************************************
* FUNCTION PROTOTYPES *
***********************************************************/
void ibmphp_free_ebda_hpc_queue(void);
int ibmphp_access_ebda(void);
struct slot *ibmphp_get_slot_from_physical_num(u8);
int ibmphp_get_total_hp_slots(void);
void ibmphp_free_ibm_slot(struct slot *);
void ibmphp_free_bus_info_queue(void);
void ibmphp_free_ebda_pci_rsrc_queue(void);
struct bus_info *ibmphp_find_same_bus_num(u32);
int ibmphp_get_bus_index(u8);
u16 ibmphp_get_total_controllers(void);
int ibmphp_register_pci(void);
/* passed parameters */
#define MEM 0
#define IO 1
#define PFMEM 2
/* bit masks */
#define RESTYPE 0x03
#define IOMASK 0x00 /* will need to take its complement */
#define MMASK 0x01
#define PFMASK 0x03
#define PCIDEVMASK 0x10 /* we should always have PCI devices */
#define PRIMARYBUSMASK 0x20
/* pci specific defines */
#define PCI_VENDOR_ID_NOTVALID 0xFFFF
#define PCI_HEADER_TYPE_MULTIDEVICE 0x80
#define PCI_HEADER_TYPE_MULTIBRIDGE 0x81
#define LATENCY 0x64
#define CACHE 64
#define DEVICEENABLE 0x015F /* CPQ has 0x0157 */
#define IOBRIDGE 0x1000 /* 4k */
#define MEMBRIDGE 0x100000 /* 1M */
/* irqs */
#define SCSI_IRQ 0x09
#define LAN_IRQ 0x0A
#define OTHER_IRQ 0x0B
/* Data Structures */
/* type is of the form x x xx xx
* | | | |_ 00 - I/O, 01 - Memory, 11 - PFMemory
* | | - 00 - No Restrictions, 01 - Avoid VGA, 10 - Avoid
* | | VGA and their aliases, 11 - Avoid ISA
* | - 1 - PCI device, 0 - non pci device
* - 1 - Primary PCI Bus Information (0 if Normal device)
* the IO restrictions [2:3] are only for primary buses
*/
/* we need this struct because there could be several resource blocks
* allocated per primary bus in the EBDA
*/
struct range_node {
int rangeno;
u32 start;
u32 end;
struct range_node *next;
};
struct bus_node {
u8 busno;
int noIORanges;
struct range_node *rangeIO;
int noMemRanges;
struct range_node *rangeMem;
int noPFMemRanges;
struct range_node *rangePFMem;
int needIOUpdate;
int needMemUpdate;
int needPFMemUpdate;
struct resource_node *firstIO; /* first IO resource on the Bus */
struct resource_node *firstMem; /* first memory resource on the Bus */
struct resource_node *firstPFMem; /* first prefetchable memory resource on the Bus */
struct resource_node *firstPFMemFromMem; /* when run out of pfmem available, taking from Mem */
struct list_head bus_list;
};
struct resource_node {
int rangeno;
u8 busno;
u8 devfunc;
u32 start;
u32 end;
u32 len;
int type; /* MEM, IO, PFMEM */
u8 fromMem; /* this is to indicate that the range is from
* the Memory bucket rather than from PFMem */
struct resource_node *next;
struct resource_node *nextRange; /* for the other mem range on bus */
};
struct res_needed {
u32 mem;
u32 pfmem;
u32 io;
u8 not_correct; /* needed for return */
int devices[32]; /* for device numbers behind this bridge */
};
/* functions */
int ibmphp_rsrc_init(void);
int ibmphp_add_resource(struct resource_node *);
int ibmphp_remove_resource(struct resource_node *);
int ibmphp_find_resource(struct bus_node *, u32, struct resource_node **, int);
int ibmphp_check_resource(struct resource_node *, u8);
int ibmphp_remove_bus(struct bus_node *, u8);
void ibmphp_free_resources(void);
int ibmphp_add_pfmem_from_mem(struct resource_node *);
struct bus_node *ibmphp_find_res_bus(u8);
void ibmphp_print_test(void); /* for debugging purposes */
int ibmphp_hpc_readslot(struct slot *, u8, u8 *);
int ibmphp_hpc_writeslot(struct slot *, u8);
void ibmphp_lock_operations(void);
void ibmphp_unlock_operations(void);
int ibmphp_hpc_start_poll_thread(void);
void ibmphp_hpc_stop_poll_thread(void);
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// HPC return codes
//----------------------------------------------------------------------------
#define HPC_ERROR 0xFF
//-----------------------------------------------------------------------------
// BUS INFO
//-----------------------------------------------------------------------------
#define BUS_SPEED 0x30
#define BUS_MODE 0x40
#define BUS_MODE_PCIX 0x01
#define BUS_MODE_PCI 0x00
#define BUS_SPEED_2 0x20
#define BUS_SPEED_1 0x10
#define BUS_SPEED_33 0x00
#define BUS_SPEED_66 0x01
#define BUS_SPEED_100 0x02
#define BUS_SPEED_133 0x03
#define BUS_SPEED_66PCIX 0x04
#define BUS_SPEED_66UNKNOWN 0x05
#define BUS_STATUS_AVAILABLE 0x01
#define BUS_CONTROL_AVAILABLE 0x02
#define SLOT_LATCH_REGS_SUPPORTED 0x10
#define PRGM_MODEL_REV_LEVEL 0xF0
#define MAX_ADAPTER_NONE 0x09
//----------------------------------------------------------------------------
// HPC 'write' operations/commands
//----------------------------------------------------------------------------
// Command Code State Write to reg
// Machine at index
//------------------------- ---- ------- ------------
#define HPC_CTLR_ENABLEIRQ 0x00 // N 15
#define HPC_CTLR_DISABLEIRQ 0x01 // N 15
#define HPC_SLOT_OFF 0x02 // Y 0-14
#define HPC_SLOT_ON 0x03 // Y 0-14
#define HPC_SLOT_ATTNOFF 0x04 // N 0-14
#define HPC_SLOT_ATTNON 0x05 // N 0-14
#define HPC_CTLR_CLEARIRQ 0x06 // N 15
#define HPC_CTLR_RESET 0x07 // Y 15
#define HPC_CTLR_IRQSTEER 0x08 // N 15
#define HPC_BUS_33CONVMODE 0x09 // Y 31-34
#define HPC_BUS_66CONVMODE 0x0A // Y 31-34
#define HPC_BUS_66PCIXMODE 0x0B // Y 31-34
#define HPC_BUS_100PCIXMODE 0x0C // Y 31-34
#define HPC_BUS_133PCIXMODE 0x0D // Y 31-34
#define HPC_ALLSLOT_OFF 0x11 // Y 15
#define HPC_ALLSLOT_ON 0x12 // Y 15
#define HPC_SLOT_BLINKLED 0x13 // N 0-14
//----------------------------------------------------------------------------
// read commands
//----------------------------------------------------------------------------
#define READ_SLOTSTATUS 0x01
#define READ_EXTSLOTSTATUS 0x02
#define READ_BUSSTATUS 0x03
#define READ_CTLRSTATUS 0x04
#define READ_ALLSTAT 0x05
#define READ_ALLSLOT 0x06
#define READ_SLOTLATCHLOWREG 0x07
#define READ_REVLEVEL 0x08
#define READ_HPCOPTIONS 0x09
//----------------------------------------------------------------------------
// slot status
//----------------------------------------------------------------------------
#define HPC_SLOT_POWER 0x01
#define HPC_SLOT_CONNECT 0x02
#define HPC_SLOT_ATTN 0x04
#define HPC_SLOT_PRSNT2 0x08
#define HPC_SLOT_PRSNT1 0x10
#define HPC_SLOT_PWRGD 0x20
#define HPC_SLOT_BUS_SPEED 0x40
#define HPC_SLOT_LATCH 0x80
//----------------------------------------------------------------------------
// HPC_SLOT_POWER status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_POWER_OFF 0x00
#define HPC_SLOT_POWER_ON 0x01
//----------------------------------------------------------------------------
// HPC_SLOT_CONNECT status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_CONNECTED 0x00
#define HPC_SLOT_DISCONNECTED 0x01
//----------------------------------------------------------------------------
// HPC_SLOT_ATTN status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_ATTN_OFF 0x00
#define HPC_SLOT_ATTN_ON 0x01
#define HPC_SLOT_ATTN_BLINK 0x02
//----------------------------------------------------------------------------
// HPC_SLOT_PRSNT status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_EMPTY 0x00
#define HPC_SLOT_PRSNT_7 0x01
#define HPC_SLOT_PRSNT_15 0x02
#define HPC_SLOT_PRSNT_25 0x03
//----------------------------------------------------------------------------
// HPC_SLOT_PWRGD status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_PWRGD_FAULT_NONE 0x00
#define HPC_SLOT_PWRGD_GOOD 0x01
//----------------------------------------------------------------------------
// HPC_SLOT_BUS_SPEED status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_BUS_SPEED_OK 0x00
#define HPC_SLOT_BUS_SPEED_MISM 0x01
//----------------------------------------------------------------------------
// HPC_SLOT_LATCH status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_LATCH_OPEN 0x01 // NOTE : in PCI spec bit off = open
#define HPC_SLOT_LATCH_CLOSED 0x00 // NOTE : in PCI spec bit on = closed
//----------------------------------------------------------------------------
// extended slot status
//----------------------------------------------------------------------------
#define HPC_SLOT_PCIX 0x01
#define HPC_SLOT_SPEED1 0x02
#define HPC_SLOT_SPEED2 0x04
#define HPC_SLOT_BLINK_ATTN 0x08
#define HPC_SLOT_RSRVD1 0x10
#define HPC_SLOT_RSRVD2 0x20
#define HPC_SLOT_BUS_MODE 0x40
#define HPC_SLOT_RSRVD3 0x80
//----------------------------------------------------------------------------
// HPC_XSLOT_PCIX_CAP status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_PCIX_NO 0x00
#define HPC_SLOT_PCIX_YES 0x01
//----------------------------------------------------------------------------
// HPC_XSLOT_SPEED status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_SPEED_33 0x00
#define HPC_SLOT_SPEED_66 0x01
#define HPC_SLOT_SPEED_133 0x02
//----------------------------------------------------------------------------
// HPC_XSLOT_ATTN_BLINK status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_ATTN_BLINK_OFF 0x00
#define HPC_SLOT_ATTN_BLINK_ON 0x01
//----------------------------------------------------------------------------
// HPC_XSLOT_BUS_MODE status return codes
//----------------------------------------------------------------------------
#define HPC_SLOT_BUS_MODE_OK 0x00
#define HPC_SLOT_BUS_MODE_MISM 0x01
//----------------------------------------------------------------------------
// Controller status
//----------------------------------------------------------------------------
#define HPC_CTLR_WORKING 0x01
#define HPC_CTLR_FINISHED 0x02
#define HPC_CTLR_RESULT0 0x04
#define HPC_CTLR_RESULT1 0x08
#define HPC_CTLR_RESULE2 0x10
#define HPC_CTLR_RESULT3 0x20
#define HPC_CTLR_IRQ_ROUTG 0x40
#define HPC_CTLR_IRQ_PENDG 0x80
//----------------------------------------------------------------------------
// HPC_CTLR_WORKING status return codes
//----------------------------------------------------------------------------
#define HPC_CTLR_WORKING_NO 0x00
#define HPC_CTLR_WORKING_YES 0x01
//----------------------------------------------------------------------------
// HPC_CTLR_FINISHED status return codes
//----------------------------------------------------------------------------
#define HPC_CTLR_FINISHED_NO 0x00
#define HPC_CTLR_FINISHED_YES 0x01
//----------------------------------------------------------------------------
// HPC_CTLR_RESULT status return codes
//----------------------------------------------------------------------------
#define HPC_CTLR_RESULT_SUCCESS 0x00
#define HPC_CTLR_RESULT_FAILED 0x01
#define HPC_CTLR_RESULT_RSVD 0x02
#define HPC_CTLR_RESULT_NORESP 0x03
//----------------------------------------------------------------------------
// macro for slot info
//----------------------------------------------------------------------------
#define SLOT_POWER(s) ((u8) ((s & HPC_SLOT_POWER) \
? HPC_SLOT_POWER_ON : HPC_SLOT_POWER_OFF))
#define SLOT_CONNECT(s) ((u8) ((s & HPC_SLOT_CONNECT) \
? HPC_SLOT_DISCONNECTED : HPC_SLOT_CONNECTED))
#define SLOT_ATTN(s, es) ((u8) ((es & HPC_SLOT_BLINK_ATTN) \
? HPC_SLOT_ATTN_BLINK \
: ((s & HPC_SLOT_ATTN) ? HPC_SLOT_ATTN_ON : HPC_SLOT_ATTN_OFF)))
#define SLOT_PRESENT(s) ((u8) ((s & HPC_SLOT_PRSNT1) \
? ((s & HPC_SLOT_PRSNT2) ? HPC_SLOT_EMPTY : HPC_SLOT_PRSNT_15) \
: ((s & HPC_SLOT_PRSNT2) ? HPC_SLOT_PRSNT_25 : HPC_SLOT_PRSNT_7)))
#define SLOT_PWRGD(s) ((u8) ((s & HPC_SLOT_PWRGD) \
? HPC_SLOT_PWRGD_GOOD : HPC_SLOT_PWRGD_FAULT_NONE))
#define SLOT_BUS_SPEED(s) ((u8) ((s & HPC_SLOT_BUS_SPEED) \
? HPC_SLOT_BUS_SPEED_MISM : HPC_SLOT_BUS_SPEED_OK))
#define SLOT_LATCH(s) ((u8) ((s & HPC_SLOT_LATCH) \
? HPC_SLOT_LATCH_CLOSED : HPC_SLOT_LATCH_OPEN))
#define SLOT_PCIX(es) ((u8) ((es & HPC_SLOT_PCIX) \
? HPC_SLOT_PCIX_YES : HPC_SLOT_PCIX_NO))
#define SLOT_SPEED(es) ((u8) ((es & HPC_SLOT_SPEED2) \
? ((es & HPC_SLOT_SPEED1) ? HPC_SLOT_SPEED_133 \
: HPC_SLOT_SPEED_66) \
: HPC_SLOT_SPEED_33))
#define SLOT_BUS_MODE(es) ((u8) ((es & HPC_SLOT_BUS_MODE) \
? HPC_SLOT_BUS_MODE_MISM : HPC_SLOT_BUS_MODE_OK))
//--------------------------------------------------------------------------
// macro for bus info
//---------------------------------------------------------------------------
#define CURRENT_BUS_SPEED(s) ((u8) (s & BUS_SPEED_2) \
? ((s & BUS_SPEED_1) ? BUS_SPEED_133 : BUS_SPEED_100) \
: ((s & BUS_SPEED_1) ? BUS_SPEED_66 : BUS_SPEED_33))
#define CURRENT_BUS_MODE(s) ((u8) (s & BUS_MODE) ? BUS_MODE_PCIX : BUS_MODE_PCI)
#define READ_BUS_STATUS(s) ((u8) (s->options & BUS_STATUS_AVAILABLE))
#define READ_BUS_MODE(s) ((s->revision & PRGM_MODEL_REV_LEVEL) >= 0x20)
#define SET_BUS_STATUS(s) ((u8) (s->options & BUS_CONTROL_AVAILABLE))
#define READ_SLOT_LATCH(s) ((u8) (s->options & SLOT_LATCH_REGS_SUPPORTED))
//----------------------------------------------------------------------------
// macro for controller info
//----------------------------------------------------------------------------
#define CTLR_WORKING(c) ((u8) ((c & HPC_CTLR_WORKING) \
? HPC_CTLR_WORKING_YES : HPC_CTLR_WORKING_NO))
#define CTLR_FINISHED(c) ((u8) ((c & HPC_CTLR_FINISHED) \
? HPC_CTLR_FINISHED_YES : HPC_CTLR_FINISHED_NO))
#define CTLR_RESULT(c) ((u8) ((c & HPC_CTLR_RESULT1) \
? ((c & HPC_CTLR_RESULT0) ? HPC_CTLR_RESULT_NORESP \
: HPC_CTLR_RESULT_RSVD) \
: ((c & HPC_CTLR_RESULT0) ? HPC_CTLR_RESULT_FAILED \
: HPC_CTLR_RESULT_SUCCESS)))
// command that affect the state machine of HPC
#define NEEDTOCHECK_CMDSTATUS(c) ((c == HPC_SLOT_OFF) || \
(c == HPC_SLOT_ON) || \
(c == HPC_CTLR_RESET) || \
(c == HPC_BUS_33CONVMODE) || \
(c == HPC_BUS_66CONVMODE) || \
(c == HPC_BUS_66PCIXMODE) || \
(c == HPC_BUS_100PCIXMODE) || \
(c == HPC_BUS_133PCIXMODE) || \
(c == HPC_ALLSLOT_OFF) || \
(c == HPC_ALLSLOT_ON))
/* Core part of the driver */
#define ENABLE 1
#define DISABLE 0
#define CARD_INFO 0x07
#define PCIX133 0x07
#define PCIX66 0x05
#define PCI66 0x04
extern struct pci_bus *ibmphp_pci_bus;
/* Variables */
struct pci_func {
struct pci_dev *dev; /* from the OS */
u8 busno;
u8 device;
u8 function;
struct resource_node *io[6];
struct resource_node *mem[6];
struct resource_node *pfmem[6];
struct pci_func *next;
int devices[32]; /* for bridge config */
u8 irq[4]; /* for interrupt config */
u8 bus; /* flag for unconfiguring, to say if PPB */
};
struct slot {
u8 bus;
u8 device;
u8 number;
u8 real_physical_slot_num;
u32 capabilities;
u8 supported_speed;
u8 supported_bus_mode;
u8 flag; /* this is for disable slot and polling */
u8 ctlr_index;
struct hotplug_slot hotplug_slot;
struct controller *ctrl;
struct pci_func *func;
u8 irq[4];
int bit_mode; /* 0 = 32, 1 = 64 */
struct bus_info *bus_on;
struct list_head ibm_slot_list;
u8 status;
u8 ext_status;
u8 busstatus;
};
struct controller {
struct ebda_hpc_slot *slots;
struct ebda_hpc_bus *buses;
struct pci_dev *ctrl_dev; /* in case where controller is PCI */
u8 starting_slot_num; /* starting and ending slot #'s this ctrl controls*/
u8 ending_slot_num;
u8 revision;
u8 options; /* which options HPC supports */
u8 status;
u8 ctlr_id;
u8 slot_count;
u8 bus_count;
u8 ctlr_relative_id;
u32 irq;
union {
struct isa_ctlr_access isa_ctlr;
struct pci_ctlr_access pci_ctlr;
struct wpeg_i2c_ctlr_access wpeg_ctlr;
} u;
u8 ctlr_type;
struct list_head ebda_hpc_list;
};
/* Functions */
int ibmphp_init_devno(struct slot **); /* This function is called from EBDA, so we need it not be static */
int ibmphp_do_disable_slot(struct slot *slot_cur);
int ibmphp_update_slot_info(struct slot *); /* This function is called from HPC, so we need it to not be static */
int ibmphp_configure_card(struct pci_func *, u8);
int ibmphp_unconfigure_card(struct slot **, int);
extern const struct hotplug_slot_ops ibmphp_hotplug_slot_ops;
static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
{
return container_of(hotplug_slot, struct slot, hotplug_slot);
}
#endif //__IBMPHP_H