linux/drivers/pci/hotplug/ibmphp.h
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   1/* SPDX-License-Identifier: GPL-2.0+ */
   2#ifndef __IBMPHP_H
   3#define __IBMPHP_H
   4
   5/*
   6 * IBM Hot Plug Controller Driver
   7 *
   8 * Written By: Jyoti Shah, Tong Yu, Irene Zubarev, IBM Corporation
   9 *
  10 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
  11 * Copyright (C) 2001-2003 IBM Corp.
  12 *
  13 * All rights reserved.
  14 *
  15 * Send feedback to <gregkh@us.ibm.com>
  16 *
  17 */
  18
  19#include <linux/pci_hotplug.h>
  20
  21extern int ibmphp_debug;
  22
  23#if !defined(MODULE)
  24        #define MY_NAME "ibmphpd"
  25#else
  26        #define MY_NAME THIS_MODULE->name
  27#endif
  28#define debug(fmt, arg...) do { if (ibmphp_debug == 1) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)
  29#define debug_pci(fmt, arg...) do { if (ibmphp_debug) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)
  30#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg)
  31#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg)
  32#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg)
  33
  34
  35/* EBDA stuff */
  36
  37/***********************************************************
  38* SLOT CAPABILITY                                          *
  39***********************************************************/
  40
  41#define EBDA_SLOT_133_MAX               0x20
  42#define EBDA_SLOT_100_MAX               0x10
  43#define EBDA_SLOT_66_MAX                0x02
  44#define EBDA_SLOT_PCIX_CAP              0x08
  45
  46
  47/************************************************************
  48*  RESOURCE TYPE                                             *
  49************************************************************/
  50
  51#define EBDA_RSRC_TYPE_MASK             0x03
  52#define EBDA_IO_RSRC_TYPE               0x00
  53#define EBDA_MEM_RSRC_TYPE              0x01
  54#define EBDA_PFM_RSRC_TYPE              0x03
  55#define EBDA_RES_RSRC_TYPE              0x02
  56
  57
  58/*************************************************************
  59*  IO RESTRICTION TYPE                                       *
  60*************************************************************/
  61
  62#define EBDA_IO_RESTRI_MASK             0x0c
  63#define EBDA_NO_RESTRI                  0x00
  64#define EBDA_AVO_VGA_ADDR               0x04
  65#define EBDA_AVO_VGA_ADDR_AND_ALIA      0x08
  66#define EBDA_AVO_ISA_ADDR               0x0c
  67
  68
  69/**************************************************************
  70*  DEVICE TYPE DEF                                            *
  71**************************************************************/
  72
  73#define EBDA_DEV_TYPE_MASK              0x10
  74#define EBDA_PCI_DEV                    0x10
  75#define EBDA_NON_PCI_DEV                0x00
  76
  77
  78/***************************************************************
  79*  PRIMARY DEF DEFINITION                                      *
  80***************************************************************/
  81
  82#define EBDA_PRI_DEF_MASK               0x20
  83#define EBDA_PRI_PCI_BUS_INFO           0x20
  84#define EBDA_NORM_DEV_RSRC_INFO         0x00
  85
  86
  87//--------------------------------------------------------------
  88// RIO TABLE DATA STRUCTURE
  89//--------------------------------------------------------------
  90
  91struct rio_table_hdr {
  92        u8 ver_num;
  93        u8 scal_count;
  94        u8 riodev_count;
  95        u16 offset;
  96};
  97
  98//-------------------------------------------------------------
  99// SCALABILITY DETAIL
 100//-------------------------------------------------------------
 101
 102struct scal_detail {
 103        u8 node_id;
 104        u32 cbar;
 105        u8 port0_node_connect;
 106        u8 port0_port_connect;
 107        u8 port1_node_connect;
 108        u8 port1_port_connect;
 109        u8 port2_node_connect;
 110        u8 port2_port_connect;
 111        u8 chassis_num;
 112//      struct list_head scal_detail_list;
 113};
 114
 115//--------------------------------------------------------------
 116// RIO DETAIL
 117//--------------------------------------------------------------
 118
 119struct rio_detail {
 120        u8 rio_node_id;
 121        u32 bbar;
 122        u8 rio_type;
 123        u8 owner_id;
 124        u8 port0_node_connect;
 125        u8 port0_port_connect;
 126        u8 port1_node_connect;
 127        u8 port1_port_connect;
 128        u8 first_slot_num;
 129        u8 status;
 130        u8 wpindex;
 131        u8 chassis_num;
 132        struct list_head rio_detail_list;
 133};
 134
 135struct opt_rio {
 136        u8 rio_type;
 137        u8 chassis_num;
 138        u8 first_slot_num;
 139        u8 middle_num;
 140        struct list_head opt_rio_list;
 141};
 142
 143struct opt_rio_lo {
 144        u8 rio_type;
 145        u8 chassis_num;
 146        u8 first_slot_num;
 147        u8 middle_num;
 148        u8 pack_count;
 149        struct list_head opt_rio_lo_list;
 150};
 151
 152/****************************************************************
 153*  HPC DESCRIPTOR NODE                                          *
 154****************************************************************/
 155
 156struct ebda_hpc_list {
 157        u8 format;
 158        u16 num_ctlrs;
 159        short phys_addr;
 160//      struct list_head ebda_hpc_list;
 161};
 162/*****************************************************************
 163*   IN HPC DATA STRUCTURE, THE ASSOCIATED SLOT AND BUS           *
 164*   STRUCTURE                                                    *
 165*****************************************************************/
 166
 167struct ebda_hpc_slot {
 168        u8 slot_num;
 169        u32 slot_bus_num;
 170        u8 ctl_index;
 171        u8 slot_cap;
 172};
 173
 174struct ebda_hpc_bus {
 175        u32 bus_num;
 176        u8 slots_at_33_conv;
 177        u8 slots_at_66_conv;
 178        u8 slots_at_66_pcix;
 179        u8 slots_at_100_pcix;
 180        u8 slots_at_133_pcix;
 181};
 182
 183
 184/********************************************************************
 185*   THREE TYPE OF HOT PLUG CONTROLLER                                *
 186********************************************************************/
 187
 188struct isa_ctlr_access {
 189        u16 io_start;
 190        u16 io_end;
 191};
 192
 193struct pci_ctlr_access {
 194        u8 bus;
 195        u8 dev_fun;
 196};
 197
 198struct wpeg_i2c_ctlr_access {
 199        ulong wpegbbar;
 200        u8 i2c_addr;
 201};
 202
 203#define HPC_DEVICE_ID           0x0246
 204#define HPC_SUBSYSTEM_ID        0x0247
 205#define HPC_PCI_OFFSET          0x40
 206/*************************************************************************
 207*   RSTC DESCRIPTOR NODE                                                 *
 208*************************************************************************/
 209
 210struct ebda_rsrc_list {
 211        u8 format;
 212        u16 num_entries;
 213        u16 phys_addr;
 214        struct ebda_rsrc_list *next;
 215};
 216
 217
 218/***************************************************************************
 219*   PCI RSRC NODE                                                          *
 220***************************************************************************/
 221
 222struct ebda_pci_rsrc {
 223        u8 rsrc_type;
 224        u8 bus_num;
 225        u8 dev_fun;
 226        u32 start_addr;
 227        u32 end_addr;
 228        u8 marked;      /* for NVRAM */
 229        struct list_head ebda_pci_rsrc_list;
 230};
 231
 232
 233/***********************************************************
 234* BUS_INFO DATE STRUCTURE                                  *
 235***********************************************************/
 236
 237struct bus_info {
 238        u8 slot_min;
 239        u8 slot_max;
 240        u8 slot_count;
 241        u8 busno;
 242        u8 controller_id;
 243        u8 current_speed;
 244        u8 current_bus_mode;
 245        u8 index;
 246        u8 slots_at_33_conv;
 247        u8 slots_at_66_conv;
 248        u8 slots_at_66_pcix;
 249        u8 slots_at_100_pcix;
 250        u8 slots_at_133_pcix;
 251        struct list_head bus_info_list;
 252};
 253
 254
 255/***********************************************************
 256* GLOBAL VARIABLES                                         *
 257***********************************************************/
 258extern struct list_head ibmphp_ebda_pci_rsrc_head;
 259extern struct list_head ibmphp_slot_head;
 260/***********************************************************
 261* FUNCTION PROTOTYPES                                      *
 262***********************************************************/
 263
 264void ibmphp_free_ebda_hpc_queue(void);
 265int ibmphp_access_ebda(void);
 266struct slot *ibmphp_get_slot_from_physical_num(u8);
 267int ibmphp_get_total_hp_slots(void);
 268void ibmphp_free_ibm_slot(struct slot *);
 269void ibmphp_free_bus_info_queue(void);
 270void ibmphp_free_ebda_pci_rsrc_queue(void);
 271struct bus_info *ibmphp_find_same_bus_num(u32);
 272int ibmphp_get_bus_index(u8);
 273u16 ibmphp_get_total_controllers(void);
 274int ibmphp_register_pci(void);
 275
 276/* passed parameters */
 277#define MEM             0
 278#define IO              1
 279#define PFMEM           2
 280
 281/* bit masks */
 282#define RESTYPE         0x03
 283#define IOMASK          0x00    /* will need to take its complement */
 284#define MMASK           0x01
 285#define PFMASK          0x03
 286#define PCIDEVMASK      0x10    /* we should always have PCI devices */
 287#define PRIMARYBUSMASK  0x20
 288
 289/* pci specific defines */
 290#define PCI_VENDOR_ID_NOTVALID          0xFFFF
 291#define PCI_HEADER_TYPE_MULTIDEVICE     0x80
 292#define PCI_HEADER_TYPE_MULTIBRIDGE     0x81
 293
 294#define LATENCY         0x64
 295#define CACHE           64
 296#define DEVICEENABLE    0x015F          /* CPQ has 0x0157 */
 297
 298#define IOBRIDGE        0x1000          /* 4k */
 299#define MEMBRIDGE       0x100000        /* 1M */
 300
 301/* irqs */
 302#define SCSI_IRQ        0x09
 303#define LAN_IRQ         0x0A
 304#define OTHER_IRQ       0x0B
 305
 306/* Data Structures */
 307
 308/* type is of the form x x xx xx
 309 *                     | |  |  |_ 00 - I/O, 01 - Memory, 11 - PFMemory
 310 *                     | |  - 00 - No Restrictions, 01 - Avoid VGA, 10 - Avoid
 311 *                     | |    VGA and their aliases, 11 - Avoid ISA
 312 *                     | - 1 - PCI device, 0 - non pci device
 313 *                     - 1 - Primary PCI Bus Information (0 if Normal device)
 314 * the IO restrictions [2:3] are only for primary buses
 315 */
 316
 317
 318/* we need this struct because there could be several resource blocks
 319 * allocated per primary bus in the EBDA
 320 */
 321struct range_node {
 322        int rangeno;
 323        u32 start;
 324        u32 end;
 325        struct range_node *next;
 326};
 327
 328struct bus_node {
 329        u8 busno;
 330        int noIORanges;
 331        struct range_node *rangeIO;
 332        int noMemRanges;
 333        struct range_node *rangeMem;
 334        int noPFMemRanges;
 335        struct range_node *rangePFMem;
 336        int needIOUpdate;
 337        int needMemUpdate;
 338        int needPFMemUpdate;
 339        struct resource_node *firstIO;  /* first IO resource on the Bus */
 340        struct resource_node *firstMem; /* first memory resource on the Bus */
 341        struct resource_node *firstPFMem;       /* first prefetchable memory resource on the Bus */
 342        struct resource_node *firstPFMemFromMem;        /* when run out of pfmem available, taking from Mem */
 343        struct list_head bus_list;
 344};
 345
 346struct resource_node {
 347        int rangeno;
 348        u8 busno;
 349        u8 devfunc;
 350        u32 start;
 351        u32 end;
 352        u32 len;
 353        int type;               /* MEM, IO, PFMEM */
 354        u8 fromMem;             /* this is to indicate that the range is from
 355                                 * from the Memory bucket rather than from PFMem */
 356        struct resource_node *next;
 357        struct resource_node *nextRange;        /* for the other mem range on bus */
 358};
 359
 360struct res_needed {
 361        u32 mem;
 362        u32 pfmem;
 363        u32 io;
 364        u8 not_correct;         /* needed for return */
 365        int devices[32];        /* for device numbers behind this bridge */
 366};
 367
 368/* functions */
 369
 370int ibmphp_rsrc_init(void);
 371int ibmphp_add_resource(struct resource_node *);
 372int ibmphp_remove_resource(struct resource_node *);
 373int ibmphp_find_resource(struct bus_node *, u32, struct resource_node **, int);
 374int ibmphp_check_resource(struct resource_node *, u8);
 375int ibmphp_remove_bus(struct bus_node *, u8);
 376void ibmphp_free_resources(void);
 377int ibmphp_add_pfmem_from_mem(struct resource_node *);
 378struct bus_node *ibmphp_find_res_bus(u8);
 379void ibmphp_print_test(void);   /* for debugging purposes */
 380
 381int ibmphp_hpc_readslot(struct slot *, u8, u8 *);
 382int ibmphp_hpc_writeslot(struct slot *, u8);
 383void ibmphp_lock_operations(void);
 384void ibmphp_unlock_operations(void);
 385int ibmphp_hpc_start_poll_thread(void);
 386void ibmphp_hpc_stop_poll_thread(void);
 387
 388//----------------------------------------------------------------------------
 389
 390
 391//----------------------------------------------------------------------------
 392// HPC return codes
 393//----------------------------------------------------------------------------
 394#define HPC_ERROR                       0xFF
 395
 396//-----------------------------------------------------------------------------
 397// BUS INFO
 398//-----------------------------------------------------------------------------
 399#define BUS_SPEED                       0x30
 400#define BUS_MODE                        0x40
 401#define BUS_MODE_PCIX                   0x01
 402#define BUS_MODE_PCI                    0x00
 403#define BUS_SPEED_2                     0x20
 404#define BUS_SPEED_1                     0x10
 405#define BUS_SPEED_33                    0x00
 406#define BUS_SPEED_66                    0x01
 407#define BUS_SPEED_100                   0x02
 408#define BUS_SPEED_133                   0x03
 409#define BUS_SPEED_66PCIX                0x04
 410#define BUS_SPEED_66UNKNOWN             0x05
 411#define BUS_STATUS_AVAILABLE            0x01
 412#define BUS_CONTROL_AVAILABLE           0x02
 413#define SLOT_LATCH_REGS_SUPPORTED       0x10
 414
 415#define PRGM_MODEL_REV_LEVEL            0xF0
 416#define MAX_ADAPTER_NONE                0x09
 417
 418//----------------------------------------------------------------------------
 419// HPC 'write' operations/commands
 420//----------------------------------------------------------------------------
 421//      Command                 Code    State   Write to reg
 422//                                      Machine at index
 423//-------------------------     ----    ------- ------------
 424#define HPC_CTLR_ENABLEIRQ      0x00    // N    15
 425#define HPC_CTLR_DISABLEIRQ     0x01    // N    15
 426#define HPC_SLOT_OFF            0x02    // Y    0-14
 427#define HPC_SLOT_ON             0x03    // Y    0-14
 428#define HPC_SLOT_ATTNOFF        0x04    // N    0-14
 429#define HPC_SLOT_ATTNON         0x05    // N    0-14
 430#define HPC_CTLR_CLEARIRQ       0x06    // N    15
 431#define HPC_CTLR_RESET          0x07    // Y    15
 432#define HPC_CTLR_IRQSTEER       0x08    // N    15
 433#define HPC_BUS_33CONVMODE      0x09    // Y    31-34
 434#define HPC_BUS_66CONVMODE      0x0A    // Y    31-34
 435#define HPC_BUS_66PCIXMODE      0x0B    // Y    31-34
 436#define HPC_BUS_100PCIXMODE     0x0C    // Y    31-34
 437#define HPC_BUS_133PCIXMODE     0x0D    // Y    31-34
 438#define HPC_ALLSLOT_OFF         0x11    // Y    15
 439#define HPC_ALLSLOT_ON          0x12    // Y    15
 440#define HPC_SLOT_BLINKLED       0x13    // N    0-14
 441
 442//----------------------------------------------------------------------------
 443// read commands
 444//----------------------------------------------------------------------------
 445#define READ_SLOTSTATUS         0x01
 446#define READ_EXTSLOTSTATUS      0x02
 447#define READ_BUSSTATUS          0x03
 448#define READ_CTLRSTATUS         0x04
 449#define READ_ALLSTAT            0x05
 450#define READ_ALLSLOT            0x06
 451#define READ_SLOTLATCHLOWREG    0x07
 452#define READ_REVLEVEL           0x08
 453#define READ_HPCOPTIONS         0x09
 454//----------------------------------------------------------------------------
 455// slot status
 456//----------------------------------------------------------------------------
 457#define HPC_SLOT_POWER          0x01
 458#define HPC_SLOT_CONNECT        0x02
 459#define HPC_SLOT_ATTN           0x04
 460#define HPC_SLOT_PRSNT2         0x08
 461#define HPC_SLOT_PRSNT1         0x10
 462#define HPC_SLOT_PWRGD          0x20
 463#define HPC_SLOT_BUS_SPEED      0x40
 464#define HPC_SLOT_LATCH          0x80
 465
 466//----------------------------------------------------------------------------
 467// HPC_SLOT_POWER status return codes
 468//----------------------------------------------------------------------------
 469#define HPC_SLOT_POWER_OFF      0x00
 470#define HPC_SLOT_POWER_ON       0x01
 471
 472//----------------------------------------------------------------------------
 473// HPC_SLOT_CONNECT status return codes
 474//----------------------------------------------------------------------------
 475#define HPC_SLOT_CONNECTED      0x00
 476#define HPC_SLOT_DISCONNECTED   0x01
 477
 478//----------------------------------------------------------------------------
 479// HPC_SLOT_ATTN status return codes
 480//----------------------------------------------------------------------------
 481#define HPC_SLOT_ATTN_OFF       0x00
 482#define HPC_SLOT_ATTN_ON        0x01
 483#define HPC_SLOT_ATTN_BLINK     0x02
 484
 485//----------------------------------------------------------------------------
 486// HPC_SLOT_PRSNT status return codes
 487//----------------------------------------------------------------------------
 488#define HPC_SLOT_EMPTY          0x00
 489#define HPC_SLOT_PRSNT_7        0x01
 490#define HPC_SLOT_PRSNT_15       0x02
 491#define HPC_SLOT_PRSNT_25       0x03
 492
 493//----------------------------------------------------------------------------
 494// HPC_SLOT_PWRGD status return codes
 495//----------------------------------------------------------------------------
 496#define HPC_SLOT_PWRGD_FAULT_NONE       0x00
 497#define HPC_SLOT_PWRGD_GOOD             0x01
 498
 499//----------------------------------------------------------------------------
 500// HPC_SLOT_BUS_SPEED status return codes
 501//----------------------------------------------------------------------------
 502#define HPC_SLOT_BUS_SPEED_OK   0x00
 503#define HPC_SLOT_BUS_SPEED_MISM 0x01
 504
 505//----------------------------------------------------------------------------
 506// HPC_SLOT_LATCH status return codes
 507//----------------------------------------------------------------------------
 508#define HPC_SLOT_LATCH_OPEN     0x01    // NOTE : in PCI spec bit off = open
 509#define HPC_SLOT_LATCH_CLOSED   0x00    // NOTE : in PCI spec bit on  = closed
 510
 511
 512//----------------------------------------------------------------------------
 513// extended slot status
 514//----------------------------------------------------------------------------
 515#define HPC_SLOT_PCIX           0x01
 516#define HPC_SLOT_SPEED1         0x02
 517#define HPC_SLOT_SPEED2         0x04
 518#define HPC_SLOT_BLINK_ATTN     0x08
 519#define HPC_SLOT_RSRVD1         0x10
 520#define HPC_SLOT_RSRVD2         0x20
 521#define HPC_SLOT_BUS_MODE       0x40
 522#define HPC_SLOT_RSRVD3         0x80
 523
 524//----------------------------------------------------------------------------
 525// HPC_XSLOT_PCIX_CAP status return codes
 526//----------------------------------------------------------------------------
 527#define HPC_SLOT_PCIX_NO        0x00
 528#define HPC_SLOT_PCIX_YES       0x01
 529
 530//----------------------------------------------------------------------------
 531// HPC_XSLOT_SPEED status return codes
 532//----------------------------------------------------------------------------
 533#define HPC_SLOT_SPEED_33       0x00
 534#define HPC_SLOT_SPEED_66       0x01
 535#define HPC_SLOT_SPEED_133      0x02
 536
 537//----------------------------------------------------------------------------
 538// HPC_XSLOT_ATTN_BLINK status return codes
 539//----------------------------------------------------------------------------
 540#define HPC_SLOT_ATTN_BLINK_OFF 0x00
 541#define HPC_SLOT_ATTN_BLINK_ON  0x01
 542
 543//----------------------------------------------------------------------------
 544// HPC_XSLOT_BUS_MODE status return codes
 545//----------------------------------------------------------------------------
 546#define HPC_SLOT_BUS_MODE_OK    0x00
 547#define HPC_SLOT_BUS_MODE_MISM  0x01
 548
 549//----------------------------------------------------------------------------
 550// Controller status
 551//----------------------------------------------------------------------------
 552#define HPC_CTLR_WORKING        0x01
 553#define HPC_CTLR_FINISHED       0x02
 554#define HPC_CTLR_RESULT0        0x04
 555#define HPC_CTLR_RESULT1        0x08
 556#define HPC_CTLR_RESULE2        0x10
 557#define HPC_CTLR_RESULT3        0x20
 558#define HPC_CTLR_IRQ_ROUTG      0x40
 559#define HPC_CTLR_IRQ_PENDG      0x80
 560
 561//----------------------------------------------------------------------------
 562// HPC_CTLR_WORKING status return codes
 563//----------------------------------------------------------------------------
 564#define HPC_CTLR_WORKING_NO     0x00
 565#define HPC_CTLR_WORKING_YES    0x01
 566
 567//----------------------------------------------------------------------------
 568// HPC_CTLR_FINISHED status return codes
 569//----------------------------------------------------------------------------
 570#define HPC_CTLR_FINISHED_NO    0x00
 571#define HPC_CTLR_FINISHED_YES   0x01
 572
 573//----------------------------------------------------------------------------
 574// HPC_CTLR_RESULT status return codes
 575//----------------------------------------------------------------------------
 576#define HPC_CTLR_RESULT_SUCCESS 0x00
 577#define HPC_CTLR_RESULT_FAILED  0x01
 578#define HPC_CTLR_RESULT_RSVD    0x02
 579#define HPC_CTLR_RESULT_NORESP  0x03
 580
 581
 582//----------------------------------------------------------------------------
 583// macro for slot info
 584//----------------------------------------------------------------------------
 585#define SLOT_POWER(s)   ((u8) ((s & HPC_SLOT_POWER) \
 586        ? HPC_SLOT_POWER_ON : HPC_SLOT_POWER_OFF))
 587
 588#define SLOT_CONNECT(s) ((u8) ((s & HPC_SLOT_CONNECT) \
 589        ? HPC_SLOT_DISCONNECTED : HPC_SLOT_CONNECTED))
 590
 591#define SLOT_ATTN(s, es)        ((u8) ((es & HPC_SLOT_BLINK_ATTN) \
 592        ? HPC_SLOT_ATTN_BLINK \
 593        : ((s & HPC_SLOT_ATTN) ? HPC_SLOT_ATTN_ON : HPC_SLOT_ATTN_OFF)))
 594
 595#define SLOT_PRESENT(s) ((u8) ((s & HPC_SLOT_PRSNT1) \
 596        ? ((s & HPC_SLOT_PRSNT2) ? HPC_SLOT_EMPTY : HPC_SLOT_PRSNT_15) \
 597        : ((s & HPC_SLOT_PRSNT2) ? HPC_SLOT_PRSNT_25 : HPC_SLOT_PRSNT_7)))
 598
 599#define SLOT_PWRGD(s)   ((u8) ((s & HPC_SLOT_PWRGD) \
 600        ? HPC_SLOT_PWRGD_GOOD : HPC_SLOT_PWRGD_FAULT_NONE))
 601
 602#define SLOT_BUS_SPEED(s)       ((u8) ((s & HPC_SLOT_BUS_SPEED) \
 603        ? HPC_SLOT_BUS_SPEED_MISM : HPC_SLOT_BUS_SPEED_OK))
 604
 605#define SLOT_LATCH(s)   ((u8) ((s & HPC_SLOT_LATCH) \
 606        ? HPC_SLOT_LATCH_CLOSED : HPC_SLOT_LATCH_OPEN))
 607
 608#define SLOT_PCIX(es)   ((u8) ((es & HPC_SLOT_PCIX) \
 609        ? HPC_SLOT_PCIX_YES : HPC_SLOT_PCIX_NO))
 610
 611#define SLOT_SPEED(es)  ((u8) ((es & HPC_SLOT_SPEED2) \
 612        ? ((es & HPC_SLOT_SPEED1) ? HPC_SLOT_SPEED_133   \
 613                                : HPC_SLOT_SPEED_66)   \
 614        : HPC_SLOT_SPEED_33))
 615
 616#define SLOT_BUS_MODE(es)       ((u8) ((es & HPC_SLOT_BUS_MODE) \
 617        ? HPC_SLOT_BUS_MODE_MISM : HPC_SLOT_BUS_MODE_OK))
 618
 619//--------------------------------------------------------------------------
 620// macro for bus info
 621//---------------------------------------------------------------------------
 622#define CURRENT_BUS_SPEED(s)    ((u8) (s & BUS_SPEED_2) \
 623        ? ((s & BUS_SPEED_1) ? BUS_SPEED_133 : BUS_SPEED_100) \
 624        : ((s & BUS_SPEED_1) ? BUS_SPEED_66 : BUS_SPEED_33))
 625
 626#define CURRENT_BUS_MODE(s)     ((u8) (s & BUS_MODE) ? BUS_MODE_PCIX : BUS_MODE_PCI)
 627
 628#define READ_BUS_STATUS(s)      ((u8) (s->options & BUS_STATUS_AVAILABLE))
 629
 630#define READ_BUS_MODE(s)        ((s->revision & PRGM_MODEL_REV_LEVEL) >= 0x20)
 631
 632#define SET_BUS_STATUS(s)       ((u8) (s->options & BUS_CONTROL_AVAILABLE))
 633
 634#define READ_SLOT_LATCH(s)      ((u8) (s->options & SLOT_LATCH_REGS_SUPPORTED))
 635
 636//----------------------------------------------------------------------------
 637// macro for controller info
 638//----------------------------------------------------------------------------
 639#define CTLR_WORKING(c) ((u8) ((c & HPC_CTLR_WORKING) \
 640        ? HPC_CTLR_WORKING_YES : HPC_CTLR_WORKING_NO))
 641#define CTLR_FINISHED(c) ((u8) ((c & HPC_CTLR_FINISHED) \
 642        ? HPC_CTLR_FINISHED_YES : HPC_CTLR_FINISHED_NO))
 643#define CTLR_RESULT(c) ((u8) ((c & HPC_CTLR_RESULT1)  \
 644        ? ((c & HPC_CTLR_RESULT0) ? HPC_CTLR_RESULT_NORESP \
 645                                : HPC_CTLR_RESULT_RSVD)  \
 646        : ((c & HPC_CTLR_RESULT0) ? HPC_CTLR_RESULT_FAILED \
 647                                : HPC_CTLR_RESULT_SUCCESS)))
 648
 649// command that affect the state machine of HPC
 650#define NEEDTOCHECK_CMDSTATUS(c) ((c == HPC_SLOT_OFF)        || \
 651                                  (c == HPC_SLOT_ON)         || \
 652                                  (c == HPC_CTLR_RESET)      || \
 653                                  (c == HPC_BUS_33CONVMODE)  || \
 654                                  (c == HPC_BUS_66CONVMODE)  || \
 655                                  (c == HPC_BUS_66PCIXMODE)  || \
 656                                  (c == HPC_BUS_100PCIXMODE) || \
 657                                  (c == HPC_BUS_133PCIXMODE) || \
 658                                  (c == HPC_ALLSLOT_OFF)     || \
 659                                  (c == HPC_ALLSLOT_ON))
 660
 661
 662/* Core part of the driver */
 663
 664#define ENABLE          1
 665#define DISABLE         0
 666
 667#define CARD_INFO       0x07
 668#define PCIX133         0x07
 669#define PCIX66          0x05
 670#define PCI66           0x04
 671
 672extern struct pci_bus *ibmphp_pci_bus;
 673
 674/* Variables */
 675
 676struct pci_func {
 677        struct pci_dev *dev;    /* from the OS */
 678        u8 busno;
 679        u8 device;
 680        u8 function;
 681        struct resource_node *io[6];
 682        struct resource_node *mem[6];
 683        struct resource_node *pfmem[6];
 684        struct pci_func *next;
 685        int devices[32];        /* for bridge config */
 686        u8 irq[4];              /* for interrupt config */
 687        u8 bus;                 /* flag for unconfiguring, to say if PPB */
 688};
 689
 690struct slot {
 691        u8 bus;
 692        u8 device;
 693        u8 number;
 694        u8 real_physical_slot_num;
 695        u32 capabilities;
 696        u8 supported_speed;
 697        u8 supported_bus_mode;
 698        u8 flag;                /* this is for disable slot and polling */
 699        u8 ctlr_index;
 700        struct hotplug_slot hotplug_slot;
 701        struct controller *ctrl;
 702        struct pci_func *func;
 703        u8 irq[4];
 704        int bit_mode;           /* 0 = 32, 1 = 64 */
 705        struct bus_info *bus_on;
 706        struct list_head ibm_slot_list;
 707        u8 status;
 708        u8 ext_status;
 709        u8 busstatus;
 710};
 711
 712struct controller {
 713        struct ebda_hpc_slot *slots;
 714        struct ebda_hpc_bus *buses;
 715        struct pci_dev *ctrl_dev; /* in case where controller is PCI */
 716        u8 starting_slot_num;   /* starting and ending slot #'s this ctrl controls*/
 717        u8 ending_slot_num;
 718        u8 revision;
 719        u8 options;             /* which options HPC supports */
 720        u8 status;
 721        u8 ctlr_id;
 722        u8 slot_count;
 723        u8 bus_count;
 724        u8 ctlr_relative_id;
 725        u32 irq;
 726        union {
 727                struct isa_ctlr_access isa_ctlr;
 728                struct pci_ctlr_access pci_ctlr;
 729                struct wpeg_i2c_ctlr_access wpeg_ctlr;
 730        } u;
 731        u8 ctlr_type;
 732        struct list_head ebda_hpc_list;
 733};
 734
 735/* Functions */
 736
 737int ibmphp_init_devno(struct slot **);  /* This function is called from EBDA, so we need it not be static */
 738int ibmphp_do_disable_slot(struct slot *slot_cur);
 739int ibmphp_update_slot_info(struct slot *);     /* This function is called from HPC, so we need it to not be be static */
 740int ibmphp_configure_card(struct pci_func *, u8);
 741int ibmphp_unconfigure_card(struct slot **, int);
 742extern const struct hotplug_slot_ops ibmphp_hotplug_slot_ops;
 743
 744static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
 745{
 746        return container_of(hotplug_slot, struct slot, hotplug_slot);
 747}
 748
 749#endif                          //__IBMPHP_H
 750
 751