drivers/pci/hotplug/ibmphp.h

   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
  21 extern 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
  91 struct 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
 102 struct 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
 119 struct 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
 135 struct 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
 143 struct 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
 156 struct 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
 167 struct ebda_hpc_slot {
 168         u8 slot_num;
 169         u32 slot_bus_num;
 170         u8 ctl_index;
 171         u8 slot_cap;
 172 };
 173
 174 struct 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
 188 struct isa_ctlr_access {
 189         u16 io_start;
 190         u16 io_end;
 191 };
 192
 193 struct pci_ctlr_access {
 194         u8 bus;
 195         u8 dev_fun;
 196 };
 197
 198 struct 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
 210 struct 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
 222 struct 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
 237 struct 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 ***********************************************************/
 258 extern struct list_head ibmphp_ebda_pci_rsrc_head;
 259 extern struct list_head ibmphp_slot_head;
 260 /***********************************************************
 261 * FUNCTION PROTOTYPES                                      *
 262 ***********************************************************/
 263
 264 void ibmphp_free_ebda_hpc_queue(void);
 265 int ibmphp_access_ebda(void);
 266 struct slot *ibmphp_get_slot_from_physical_num(u8);
 267 int ibmphp_get_total_hp_slots(void);
 268 void ibmphp_free_ibm_slot(struct slot *);
 269 void ibmphp_free_bus_info_queue(void);
 270 void ibmphp_free_ebda_pci_rsrc_queue(void);
 271 struct bus_info *ibmphp_find_same_bus_num(u32);
 272 int ibmphp_get_bus_index(u8);
 273 u16 ibmphp_get_total_controllers(void);
 274 int 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  */
 321 struct range_node {
 322         int rangeno;
 323         u32 start;
 324         u32 end;
 325         struct range_node *next;
 326 };
 327
 328 struct 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
 346 struct 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
 360 struct 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
 370 int ibmphp_rsrc_init(void);
 371 int ibmphp_add_resource(struct resource_node *);
 372 int ibmphp_remove_resource(struct resource_node *);
 373 int ibmphp_find_resource(struct bus_node *, u32, struct resource_node **, int);
 374 int ibmphp_check_resource(struct resource_node *, u8);
 375 int ibmphp_remove_bus(struct bus_node *, u8);
 376 void ibmphp_free_resources(void);
 377 int ibmphp_add_pfmem_from_mem(struct resource_node *);
 378 struct bus_node *ibmphp_find_res_bus(u8);
 379 void ibmphp_print_test(void);   /* for debugging purposes */
 380
 381 int ibmphp_hpc_readslot(struct slot *, u8, u8 *);
 382 int ibmphp_hpc_writeslot(struct slot *, u8);
 383 void ibmphp_lock_operations(void);
 384 void ibmphp_unlock_operations(void);
 385 int ibmphp_hpc_start_poll_thread(void);
 386 void 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
 672 extern struct pci_bus *ibmphp_pci_bus;
 673
 674 /* Variables */
 675
 676 struct 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
 690 struct 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
 712 struct 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
 737 int ibmphp_init_devno(struct slot **);  /* This function is called from EBDA, so we need it not be static */
 738 int ibmphp_do_disable_slot(struct slot *slot_cur);
 739 int ibmphp_update_slot_info(struct slot *);     /* This function is called from HPC, so we need it to not be be static */
 740 int ibmphp_configure_card(struct pci_func *, u8);
 741 int ibmphp_unconfigure_card(struct slot **, int);
 742 extern const struct hotplug_slot_ops ibmphp_hotplug_slot_ops;
 743
 744 static 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