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   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * bridge.h - bridge chip header file, derived from IRIX <sys/PCI/bridge.h>,
   7  * revision 1.76.
   8  *
   9  * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
  10  * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
  11  */
  12 #ifndef _ASM_PCI_BRIDGE_H
  13 #define _ASM_PCI_BRIDGE_H
  14
  15 #include <linux/types.h>
  16 #include <linux/pci.h>
  17 #include <asm/xtalk/xwidget.h>          /* generic widget header */
  18 #include <asm/sn/types.h>
  19
  20 /* I/O page size */
  21
  22 #define IOPFNSHIFT              12      /* 4K per mapped page */
  23
  24 #define IOPGSIZE                (1 << IOPFNSHIFT)
  25 #define IOPG(x)                 ((x) >> IOPFNSHIFT)
  26 #define IOPGOFF(x)              ((x) & (IOPGSIZE-1))
  27
  28 /* Bridge RAM sizes */
  29
  30 #define BRIDGE_ATE_RAM_SIZE     0x00000400      /* 1kB ATE RAM */
  31
  32 #define BRIDGE_CONFIG_BASE      0x20000
  33 #define BRIDGE_CONFIG1_BASE     0x28000
  34 #define BRIDGE_CONFIG_END       0x30000
  35 #define BRIDGE_CONFIG_SLOT_SIZE 0x1000
  36
  37 #define BRIDGE_SSRAM_512K       0x00080000      /* 512kB */
  38 #define BRIDGE_SSRAM_128K       0x00020000      /* 128kB */
  39 #define BRIDGE_SSRAM_64K        0x00010000      /* 64kB */
  40 #define BRIDGE_SSRAM_0K         0x00000000      /* 0kB */
  41
  42 /* ========================================================================
  43  *    Bridge address map
  44  */
  45
  46 #ifndef __ASSEMBLY__
  47
  48 /*
  49  * All accesses to bridge hardware registers must be done
  50  * using 32-bit loads and stores.
  51  */
  52 typedef u32     bridgereg_t;
  53
  54 typedef u64     bridge_ate_t;
  55
  56 /* pointers to bridge ATEs
  57  * are always "pointer to volatile"
  58  */
  59 typedef volatile bridge_ate_t  *bridge_ate_p;
  60
  61 /*
  62  * It is generally preferred that hardware registers on the bridge
  63  * are located from C code via this structure.
  64  *
  65  * Generated from Bridge spec dated 04oct95
  66  */
  67
  68 typedef volatile struct bridge_s {
  69         /* Local Registers                             0x000000-0x00FFFF */
  70
  71         /* standard widget configuration               0x000000-0x000057 */
  72         widget_cfg_t        b_widget;                   /* 0x000000 */
  73
  74         /* helper fieldnames for accessing bridge widget */
  75
  76 #define b_wid_id                        b_widget.w_id
  77 #define b_wid_stat                      b_widget.w_status
  78 #define b_wid_err_upper                 b_widget.w_err_upper_addr
  79 #define b_wid_err_lower                 b_widget.w_err_lower_addr
  80 #define b_wid_control                   b_widget.w_control
  81 #define b_wid_req_timeout               b_widget.w_req_timeout
  82 #define b_wid_int_upper                 b_widget.w_intdest_upper_addr
  83 #define b_wid_int_lower                 b_widget.w_intdest_lower_addr
  84 #define b_wid_err_cmdword               b_widget.w_err_cmd_word
  85 #define b_wid_llp                       b_widget.w_llp_cfg
  86 #define b_wid_tflush                    b_widget.w_tflush
  87
  88         /* bridge-specific widget configuration 0x000058-0x00007F */
  89         bridgereg_t         _pad_000058;
  90         bridgereg_t         b_wid_aux_err;              /* 0x00005C */
  91         bridgereg_t         _pad_000060;
  92         bridgereg_t         b_wid_resp_upper;           /* 0x000064 */
  93         bridgereg_t         _pad_000068;
  94         bridgereg_t         b_wid_resp_lower;           /* 0x00006C */
  95         bridgereg_t         _pad_000070;
  96         bridgereg_t         b_wid_tst_pin_ctrl;         /* 0x000074 */
  97         bridgereg_t     _pad_000078[2];
  98
  99         /* PMU & Map 0x000080-0x00008F */
 100         bridgereg_t     _pad_000080;
 101         bridgereg_t     b_dir_map;                      /* 0x000084 */
 102         bridgereg_t     _pad_000088[2];
 103
 104         /* SSRAM 0x000090-0x00009F */
 105         bridgereg_t     _pad_000090;
 106         bridgereg_t     b_ram_perr;                     /* 0x000094 */
 107         bridgereg_t     _pad_000098[2];
 108
 109         /* Arbitration 0x0000A0-0x0000AF */
 110         bridgereg_t     _pad_0000A0;
 111         bridgereg_t     b_arb;                          /* 0x0000A4 */
 112         bridgereg_t     _pad_0000A8[2];
 113
 114         /* Number In A Can 0x0000B0-0x0000BF */
 115         bridgereg_t     _pad_0000B0;
 116         bridgereg_t     b_nic;                          /* 0x0000B4 */
 117         bridgereg_t     _pad_0000B8[2];
 118
 119         /* PCI/GIO 0x0000C0-0x0000FF */
 120         bridgereg_t     _pad_0000C0;
 121         bridgereg_t     b_bus_timeout;                  /* 0x0000C4 */
 122 #define b_pci_bus_timeout b_bus_timeout
 123
 124         bridgereg_t     _pad_0000C8;
 125         bridgereg_t     b_pci_cfg;                      /* 0x0000CC */
 126         bridgereg_t     _pad_0000D0;
 127         bridgereg_t     b_pci_err_upper;                /* 0x0000D4 */
 128         bridgereg_t     _pad_0000D8;
 129         bridgereg_t     b_pci_err_lower;                /* 0x0000DC */
 130         bridgereg_t     _pad_0000E0[8];
 131 #define b_gio_err_lower b_pci_err_lower
 132 #define b_gio_err_upper b_pci_err_upper
 133
 134         /* Interrupt 0x000100-0x0001FF */
 135         bridgereg_t     _pad_000100;
 136         bridgereg_t     b_int_status;                   /* 0x000104 */
 137         bridgereg_t     _pad_000108;
 138         bridgereg_t     b_int_enable;                   /* 0x00010C */
 139         bridgereg_t     _pad_000110;
 140         bridgereg_t     b_int_rst_stat;                 /* 0x000114 */
 141         bridgereg_t     _pad_000118;
 142         bridgereg_t     b_int_mode;                     /* 0x00011C */
 143         bridgereg_t     _pad_000120;
 144         bridgereg_t     b_int_device;                   /* 0x000124 */
 145         bridgereg_t     _pad_000128;
 146         bridgereg_t     b_int_host_err;                 /* 0x00012C */
 147
 148         struct {
 149                 bridgereg_t     __pad;                  /* 0x0001{30,,,68} */
 150                 bridgereg_t     addr;                   /* 0x0001{34,,,6C} */
 151         } b_int_addr[8];                                /* 0x000130 */
 152
 153         bridgereg_t     _pad_000170[36];
 154
 155         /* Device 0x000200-0x0003FF */
 156         struct {
 157                 bridgereg_t     __pad;                  /* 0x0002{00,,,38} */
 158                 bridgereg_t     reg;                    /* 0x0002{04,,,3C} */
 159         } b_device[8];                                  /* 0x000200 */
 160
 161         struct {
 162                 bridgereg_t     __pad;                  /* 0x0002{40,,,78} */
 163                 bridgereg_t     reg;                    /* 0x0002{44,,,7C} */
 164         } b_wr_req_buf[8];                              /* 0x000240 */
 165
 166         struct {
 167                 bridgereg_t     __pad;                  /* 0x0002{80,,,88} */
 168                 bridgereg_t     reg;                    /* 0x0002{84,,,8C} */
 169         } b_rrb_map[2];                                 /* 0x000280 */
 170 #define b_even_resp     b_rrb_map[0].reg                /* 0x000284 */
 171 #define b_odd_resp      b_rrb_map[1].reg                /* 0x00028C */
 172
 173         bridgereg_t     _pad_000290;
 174         bridgereg_t     b_resp_status;                  /* 0x000294 */
 175         bridgereg_t     _pad_000298;
 176         bridgereg_t     b_resp_clear;                   /* 0x00029C */
 177
 178         bridgereg_t     _pad_0002A0[24];
 179
 180         char            _pad_000300[0x10000 - 0x000300];
 181
 182         /* Internal Address Translation Entry RAM 0x010000-0x0103FF */
 183         union {
 184                 bridge_ate_t    wr;                     /* write-only */
 185                 struct {
 186                         bridgereg_t     _p_pad;
 187                         bridgereg_t     rd;             /* read-only */
 188                 }                       hi;
 189         }                           b_int_ate_ram[128];
 190
 191         char    _pad_010400[0x11000 - 0x010400];
 192
 193         /* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */
 194         struct {
 195                 bridgereg_t     _p_pad;
 196                 bridgereg_t     rd;             /* read-only */
 197         } b_int_ate_ram_lo[128];
 198
 199         char    _pad_011400[0x20000 - 0x011400];
 200
 201         /* PCI Device Configuration Spaces 0x020000-0x027FFF */
 202         union {                         /* make all access sizes available. */
 203                 u8      c[0x1000 / 1];
 204                 u16     s[0x1000 / 2];
 205                 u32     l[0x1000 / 4];
 206                 u64     d[0x1000 / 8];
 207                 union {
 208                         u8      c[0x100 / 1];
 209                         u16     s[0x100 / 2];
 210                         u32     l[0x100 / 4];
 211                         u64     d[0x100 / 8];
 212                 } f[8];
 213         } b_type0_cfg_dev[8];                                   /* 0x020000 */
 214
 215     /* PCI Type 1 Configuration Space 0x028000-0x028FFF */
 216         union {                         /* make all access sizes available. */
 217                 u8      c[0x1000 / 1];
 218                 u16     s[0x1000 / 2];
 219                 u32     l[0x1000 / 4];
 220                 u64     d[0x1000 / 8];
 221         } b_type1_cfg;                                  /* 0x028000-0x029000 */
 222
 223         char    _pad_029000[0x007000];                  /* 0x029000-0x030000 */
 224
 225         /* PCI Interrupt Acknowledge Cycle 0x030000 */
 226         union {
 227                 u8      c[8 / 1];
 228                 u16     s[8 / 2];
 229                 u32     l[8 / 4];
 230                 u64     d[8 / 8];
 231         } b_pci_iack;                                           /* 0x030000 */
 232
 233         u8      _pad_030007[0x04fff8];                  /* 0x030008-0x07FFFF */
 234
 235         /* External Address Translation Entry RAM 0x080000-0x0FFFFF */
 236         bridge_ate_t    b_ext_ate_ram[0x10000];
 237
 238         /* Reserved 0x100000-0x1FFFFF */
 239         char    _pad_100000[0x200000-0x100000];
 240
 241         /* PCI/GIO Device Spaces 0x200000-0xBFFFFF */
 242         union {                         /* make all access sizes available. */
 243                 u8      c[0x100000 / 1];
 244                 u16     s[0x100000 / 2];
 245                 u32     l[0x100000 / 4];
 246                 u64     d[0x100000 / 8];
 247         } b_devio_raw[10];                              /* 0x200000 */
 248
 249         /* b_devio macro is a bit strange; it reflects the
 250          * fact that the Bridge ASIC provides 2M for the
 251          * first two DevIO windows and 1M for the other six.
 252          */
 253 #define b_devio(n)      b_devio_raw[((n)<2)?(n*2):(n+2)]
 254
 255         /* External Flash Proms 1,0 0xC00000-0xFFFFFF */
 256         union {         /* make all access sizes available. */
 257                 u8      c[0x400000 / 1];        /* read-only */
 258                 u16     s[0x400000 / 2];        /* read-write */
 259                 u32     l[0x400000 / 4];        /* read-only */
 260                 u64     d[0x400000 / 8];        /* read-only */
 261         } b_external_flash;                     /* 0xC00000 */
 262 } bridge_t;
 263
 264 /*
 265  * Field formats for Error Command Word and Auxillary Error Command Word
 266  * of bridge.
 267  */
 268 typedef struct bridge_err_cmdword_s {
 269         union {
 270                 u32             cmd_word;
 271                 struct {
 272                         u32     didn:4,         /* Destination ID */
 273                                 sidn:4,         /* Source ID      */
 274                                 pactyp:4,       /* Packet type    */
 275                                 tnum:5,         /* Trans Number   */
 276                                 coh:1,          /* Coh Transacti  */
 277                                 ds:2,           /* Data size      */
 278                                 gbr:1,          /* GBR enable     */
 279                                 vbpm:1,         /* VBPM message   */
 280                                 error:1,        /* Error occurred  */
 281                                 barr:1,         /* Barrier op     */
 282                                 rsvd:8;
 283                 } berr_st;
 284         } berr_un;
 285 } bridge_err_cmdword_t;
 286
 287 #define berr_field      berr_un.berr_st
 288 #endif /* !__ASSEMBLY__ */
 289
 290 /*
 291  * The values of these macros can and should be crosschecked
 292  * regularly against the offsets of the like-named fields
 293  * within the "bridge_t" structure above.
 294  */
 295
 296 /* Byte offset macros for Bridge internal registers */
 297
 298 #define BRIDGE_WID_ID           WIDGET_ID
 299 #define BRIDGE_WID_STAT         WIDGET_STATUS
 300 #define BRIDGE_WID_ERR_UPPER    WIDGET_ERR_UPPER_ADDR
 301 #define BRIDGE_WID_ERR_LOWER    WIDGET_ERR_LOWER_ADDR
 302 #define BRIDGE_WID_CONTROL      WIDGET_CONTROL
 303 #define BRIDGE_WID_REQ_TIMEOUT  WIDGET_REQ_TIMEOUT
 304 #define BRIDGE_WID_INT_UPPER    WIDGET_INTDEST_UPPER_ADDR
 305 #define BRIDGE_WID_INT_LOWER    WIDGET_INTDEST_LOWER_ADDR
 306 #define BRIDGE_WID_ERR_CMDWORD  WIDGET_ERR_CMD_WORD
 307 #define BRIDGE_WID_LLP          WIDGET_LLP_CFG
 308 #define BRIDGE_WID_TFLUSH       WIDGET_TFLUSH
 309
 310 #define BRIDGE_WID_AUX_ERR      0x00005C        /* Aux Error Command Word */
 311 #define BRIDGE_WID_RESP_UPPER   0x000064        /* Response Buf Upper Addr */
 312 #define BRIDGE_WID_RESP_LOWER   0x00006C        /* Response Buf Lower Addr */
 313 #define BRIDGE_WID_TST_PIN_CTRL 0x000074        /* Test pin control */
 314
 315 #define BRIDGE_DIR_MAP          0x000084        /* Direct Map reg */
 316
 317 #define BRIDGE_RAM_PERR         0x000094        /* SSRAM Parity Error */
 318
 319 #define BRIDGE_ARB              0x0000A4        /* Arbitration Priority reg */
 320
 321 #define BRIDGE_NIC              0x0000B4        /* Number In A Can */
 322
 323 #define BRIDGE_BUS_TIMEOUT      0x0000C4        /* Bus Timeout Register */
 324 #define BRIDGE_PCI_BUS_TIMEOUT  BRIDGE_BUS_TIMEOUT
 325 #define BRIDGE_PCI_CFG          0x0000CC        /* PCI Type 1 Config reg */
 326 #define BRIDGE_PCI_ERR_UPPER    0x0000D4        /* PCI error Upper Addr */
 327 #define BRIDGE_PCI_ERR_LOWER    0x0000DC        /* PCI error Lower Addr */
 328
 329 #define BRIDGE_INT_STATUS       0x000104        /* Interrupt Status */
 330 #define BRIDGE_INT_ENABLE       0x00010C        /* Interrupt Enables */
 331 #define BRIDGE_INT_RST_STAT     0x000114        /* Reset Intr Status */
 332 #define BRIDGE_INT_MODE         0x00011C        /* Interrupt Mode */
 333 #define BRIDGE_INT_DEVICE       0x000124        /* Interrupt Device */
 334 #define BRIDGE_INT_HOST_ERR     0x00012C        /* Host Error Field */
 335
 336 #define BRIDGE_INT_ADDR0        0x000134        /* Host Address Reg */
 337 #define BRIDGE_INT_ADDR_OFF     0x000008        /* Host Addr offset (1..7) */
 338 #define BRIDGE_INT_ADDR(x)      (BRIDGE_INT_ADDR0+(x)*BRIDGE_INT_ADDR_OFF)
 339
 340 #define BRIDGE_DEVICE0          0x000204        /* Device 0 */
 341 #define BRIDGE_DEVICE_OFF       0x000008        /* Device offset (1..7) */
 342 #define BRIDGE_DEVICE(x)        (BRIDGE_DEVICE0+(x)*BRIDGE_DEVICE_OFF)
 343
 344 #define BRIDGE_WR_REQ_BUF0      0x000244        /* Write Request Buffer 0 */
 345 #define BRIDGE_WR_REQ_BUF_OFF   0x000008        /* Buffer Offset (1..7) */
 346 #define BRIDGE_WR_REQ_BUF(x)    (BRIDGE_WR_REQ_BUF0+(x)*BRIDGE_WR_REQ_BUF_OFF)
 347
 348 #define BRIDGE_EVEN_RESP        0x000284        /* Even Device Response Buf */
 349 #define BRIDGE_ODD_RESP         0x00028C        /* Odd Device Response Buf */
 350
 351 #define BRIDGE_RESP_STATUS      0x000294        /* Read Response Status reg */
 352 #define BRIDGE_RESP_CLEAR       0x00029C        /* Read Response Clear reg */
 353
 354 /* Byte offset macros for Bridge I/O space */
 355
 356 #define BRIDGE_ATE_RAM          0x00010000      /* Internal Addr Xlat Ram */
 357
 358 #define BRIDGE_TYPE0_CFG_DEV0   0x00020000      /* Type 0 Cfg, Device 0 */
 359 #define BRIDGE_TYPE0_CFG_SLOT_OFF       0x00001000      /* Type 0 Cfg Slot Offset (1..7) */
 360 #define BRIDGE_TYPE0_CFG_FUNC_OFF       0x00000100      /* Type 0 Cfg Func Offset (1..7) */
 361 #define BRIDGE_TYPE0_CFG_DEV(s)         (BRIDGE_TYPE0_CFG_DEV0+\
 362                                          (s)*BRIDGE_TYPE0_CFG_SLOT_OFF)
 363 #define BRIDGE_TYPE0_CFG_DEVF(s,f)      (BRIDGE_TYPE0_CFG_DEV0+\
 364                                          (s)*BRIDGE_TYPE0_CFG_SLOT_OFF+\
 365                                          (f)*BRIDGE_TYPE0_CFG_FUNC_OFF)
 366
 367 #define BRIDGE_TYPE1_CFG        0x00028000      /* Type 1 Cfg space */
 368
 369 #define BRIDGE_PCI_IACK         0x00030000      /* PCI Interrupt Ack */
 370 #define BRIDGE_EXT_SSRAM        0x00080000      /* Extern SSRAM (ATE) */
 371
 372 /* Byte offset macros for Bridge device IO spaces */
 373
 374 #define BRIDGE_DEV_CNT          8       /* Up to 8 devices per bridge */
 375 #define BRIDGE_DEVIO0           0x00200000      /* Device IO 0 Addr */
 376 #define BRIDGE_DEVIO1           0x00400000      /* Device IO 1 Addr */
 377 #define BRIDGE_DEVIO2           0x00600000      /* Device IO 2 Addr */
 378 #define BRIDGE_DEVIO_OFF        0x00100000      /* Device IO Offset (3..7) */
 379
 380 #define BRIDGE_DEVIO_2MB        0x00200000      /* Device IO Offset (0..1) */
 381 #define BRIDGE_DEVIO_1MB        0x00100000      /* Device IO Offset (2..7) */
 382
 383 #define BRIDGE_DEVIO(x)         ((x)<=1 ? BRIDGE_DEVIO0+(x)*BRIDGE_DEVIO_2MB : BRIDGE_DEVIO2+((x)-2)*BRIDGE_DEVIO_1MB)
 384
 385 #define BRIDGE_EXTERNAL_FLASH   0x00C00000      /* External Flash PROMS */
 386
 387 /* ========================================================================
 388  *    Bridge register bit field definitions
 389  */
 390
 391 /* Widget part number of bridge */
 392 #define BRIDGE_WIDGET_PART_NUM          0xc002
 393 #define XBRIDGE_WIDGET_PART_NUM         0xd002
 394
 395 /* Manufacturer of bridge */
 396 #define BRIDGE_WIDGET_MFGR_NUM          0x036
 397 #define XBRIDGE_WIDGET_MFGR_NUM         0x024
 398
 399 /* Revision numbers for known Bridge revisions */
 400 #define BRIDGE_REV_A                    0x1
 401 #define BRIDGE_REV_B                    0x2
 402 #define BRIDGE_REV_C                    0x3
 403 #define BRIDGE_REV_D                    0x4
 404
 405 /* Bridge widget status register bits definition */
 406
 407 #define BRIDGE_STAT_LLP_REC_CNT         (0xFFu << 24)
 408 #define BRIDGE_STAT_LLP_TX_CNT          (0xFF << 16)
 409 #define BRIDGE_STAT_FLASH_SELECT        (0x1 << 6)
 410 #define BRIDGE_STAT_PCI_GIO_N           (0x1 << 5)
 411 #define BRIDGE_STAT_PENDING             (0x1F << 0)
 412
 413 /* Bridge widget control register bits definition */
 414 #define BRIDGE_CTRL_FLASH_WR_EN         (0x1ul << 31)
 415 #define BRIDGE_CTRL_EN_CLK50            (0x1 << 30)
 416 #define BRIDGE_CTRL_EN_CLK40            (0x1 << 29)
 417 #define BRIDGE_CTRL_EN_CLK33            (0x1 << 28)
 418 #define BRIDGE_CTRL_RST(n)              ((n) << 24)
 419 #define BRIDGE_CTRL_RST_MASK            (BRIDGE_CTRL_RST(0xF))
 420 #define BRIDGE_CTRL_RST_PIN(x)          (BRIDGE_CTRL_RST(0x1 << (x)))
 421 #define BRIDGE_CTRL_IO_SWAP             (0x1 << 23)
 422 #define BRIDGE_CTRL_MEM_SWAP            (0x1 << 22)
 423 #define BRIDGE_CTRL_PAGE_SIZE           (0x1 << 21)
 424 #define BRIDGE_CTRL_SS_PAR_BAD          (0x1 << 20)
 425 #define BRIDGE_CTRL_SS_PAR_EN           (0x1 << 19)
 426 #define BRIDGE_CTRL_SSRAM_SIZE(n)       ((n) << 17)
 427 #define BRIDGE_CTRL_SSRAM_SIZE_MASK     (BRIDGE_CTRL_SSRAM_SIZE(0x3))
 428 #define BRIDGE_CTRL_SSRAM_512K          (BRIDGE_CTRL_SSRAM_SIZE(0x3))
 429 #define BRIDGE_CTRL_SSRAM_128K          (BRIDGE_CTRL_SSRAM_SIZE(0x2))
 430 #define BRIDGE_CTRL_SSRAM_64K           (BRIDGE_CTRL_SSRAM_SIZE(0x1))
 431 #define BRIDGE_CTRL_SSRAM_1K            (BRIDGE_CTRL_SSRAM_SIZE(0x0))
 432 #define BRIDGE_CTRL_F_BAD_PKT           (0x1 << 16)
 433 #define BRIDGE_CTRL_LLP_XBAR_CRD(n)     ((n) << 12)
 434 #define BRIDGE_CTRL_LLP_XBAR_CRD_MASK   (BRIDGE_CTRL_LLP_XBAR_CRD(0xf))
 435 #define BRIDGE_CTRL_CLR_RLLP_CNT        (0x1 << 11)
 436 #define BRIDGE_CTRL_CLR_TLLP_CNT        (0x1 << 10)
 437 #define BRIDGE_CTRL_SYS_END             (0x1 << 9)
 438 #define BRIDGE_CTRL_MAX_TRANS(n)        ((n) << 4)
 439 #define BRIDGE_CTRL_MAX_TRANS_MASK      (BRIDGE_CTRL_MAX_TRANS(0x1f))
 440 #define BRIDGE_CTRL_WIDGET_ID(n)        ((n) << 0)
 441 #define BRIDGE_CTRL_WIDGET_ID_MASK      (BRIDGE_CTRL_WIDGET_ID(0xf))
 442
 443 /* Bridge Response buffer Error Upper Register bit fields definition */
 444 #define BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT (20)
 445 #define BRIDGE_RESP_ERRUPPR_DEVNUM_MASK (0x7 << BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT)
 446 #define BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT (16)
 447 #define BRIDGE_RESP_ERRUPPR_BUFNUM_MASK (0xF << BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT)
 448 #define BRIDGE_RESP_ERRRUPPR_BUFMASK    (0xFFFF)
 449
 450 #define BRIDGE_RESP_ERRUPPR_BUFNUM(x)   \
 451                         (((x) & BRIDGE_RESP_ERRUPPR_BUFNUM_MASK) >> \
 452                                 BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT)
 453
 454 #define BRIDGE_RESP_ERRUPPR_DEVICE(x)   \
 455                         (((x) &  BRIDGE_RESP_ERRUPPR_DEVNUM_MASK) >> \
 456                                  BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT)
 457
 458 /* Bridge direct mapping register bits definition */
 459 #define BRIDGE_DIRMAP_W_ID_SHFT         20
 460 #define BRIDGE_DIRMAP_W_ID              (0xf << BRIDGE_DIRMAP_W_ID_SHFT)
 461 #define BRIDGE_DIRMAP_RMF_64            (0x1 << 18)
 462 #define BRIDGE_DIRMAP_ADD512            (0x1 << 17)
 463 #define BRIDGE_DIRMAP_OFF               (0x1ffff << 0)
 464 #define BRIDGE_DIRMAP_OFF_ADDRSHFT      (31)    /* lsbit of DIRMAP_OFF is xtalk address bit 31 */
 465
 466 /* Bridge Arbitration register bits definition */
 467 #define BRIDGE_ARB_REQ_WAIT_TICK(x)     ((x) << 16)
 468 #define BRIDGE_ARB_REQ_WAIT_TICK_MASK   BRIDGE_ARB_REQ_WAIT_TICK(0x3)
 469 #define BRIDGE_ARB_REQ_WAIT_EN(x)       ((x) << 8)
 470 #define BRIDGE_ARB_REQ_WAIT_EN_MASK     BRIDGE_ARB_REQ_WAIT_EN(0xff)
 471 #define BRIDGE_ARB_FREEZE_GNT           (1 << 6)
 472 #define BRIDGE_ARB_HPRI_RING_B2         (1 << 5)
 473 #define BRIDGE_ARB_HPRI_RING_B1         (1 << 4)
 474 #define BRIDGE_ARB_HPRI_RING_B0         (1 << 3)
 475 #define BRIDGE_ARB_LPRI_RING_B2         (1 << 2)
 476 #define BRIDGE_ARB_LPRI_RING_B1         (1 << 1)
 477 #define BRIDGE_ARB_LPRI_RING_B0         (1 << 0)
 478
 479 /* Bridge Bus time-out register bits definition */
 480 #define BRIDGE_BUS_PCI_RETRY_HLD(x)     ((x) << 16)
 481 #define BRIDGE_BUS_PCI_RETRY_HLD_MASK   BRIDGE_BUS_PCI_RETRY_HLD(0x1f)
 482 #define BRIDGE_BUS_GIO_TIMEOUT          (1 << 12)
 483 #define BRIDGE_BUS_PCI_RETRY_CNT(x)     ((x) << 0)
 484 #define BRIDGE_BUS_PCI_RETRY_MASK       BRIDGE_BUS_PCI_RETRY_CNT(0x3ff)
 485
 486 /* Bridge interrupt status register bits definition */
 487 #define BRIDGE_ISR_MULTI_ERR            (0x1u << 31)
 488 #define BRIDGE_ISR_PMU_ESIZE_FAULT      (0x1 << 30)
 489 #define BRIDGE_ISR_UNEXP_RESP           (0x1 << 29)
 490 #define BRIDGE_ISR_BAD_XRESP_PKT        (0x1 << 28)
 491 #define BRIDGE_ISR_BAD_XREQ_PKT         (0x1 << 27)
 492 #define BRIDGE_ISR_RESP_XTLK_ERR        (0x1 << 26)
 493 #define BRIDGE_ISR_REQ_XTLK_ERR         (0x1 << 25)
 494 #define BRIDGE_ISR_INVLD_ADDR           (0x1 << 24)
 495 #define BRIDGE_ISR_UNSUPPORTED_XOP      (0x1 << 23)
 496 #define BRIDGE_ISR_XREQ_FIFO_OFLOW      (0x1 << 22)
 497 #define BRIDGE_ISR_LLP_REC_SNERR        (0x1 << 21)
 498 #define BRIDGE_ISR_LLP_REC_CBERR        (0x1 << 20)
 499 #define BRIDGE_ISR_LLP_RCTY             (0x1 << 19)
 500 #define BRIDGE_ISR_LLP_TX_RETRY         (0x1 << 18)
 501 #define BRIDGE_ISR_LLP_TCTY             (0x1 << 17)
 502 #define BRIDGE_ISR_SSRAM_PERR           (0x1 << 16)
 503 #define BRIDGE_ISR_PCI_ABORT            (0x1 << 15)
 504 #define BRIDGE_ISR_PCI_PARITY           (0x1 << 14)
 505 #define BRIDGE_ISR_PCI_SERR             (0x1 << 13)
 506 #define BRIDGE_ISR_PCI_PERR             (0x1 << 12)
 507 #define BRIDGE_ISR_PCI_MST_TIMEOUT      (0x1 << 11)
 508 #define BRIDGE_ISR_GIO_MST_TIMEOUT      BRIDGE_ISR_PCI_MST_TIMEOUT
 509 #define BRIDGE_ISR_PCI_RETRY_CNT        (0x1 << 10)
 510 #define BRIDGE_ISR_XREAD_REQ_TIMEOUT    (0x1 << 9)
 511 #define BRIDGE_ISR_GIO_B_ENBL_ERR       (0x1 << 8)
 512 #define BRIDGE_ISR_INT_MSK              (0xff << 0)
 513 #define BRIDGE_ISR_INT(x)               (0x1 << (x))
 514
 515 #define BRIDGE_ISR_LINK_ERROR           \
 516                 (BRIDGE_ISR_LLP_REC_SNERR|BRIDGE_ISR_LLP_REC_CBERR|     \
 517                  BRIDGE_ISR_LLP_RCTY|BRIDGE_ISR_LLP_TX_RETRY|           \
 518                  BRIDGE_ISR_LLP_TCTY)
 519
 520 #define BRIDGE_ISR_PCIBUS_PIOERR        \
 521                 (BRIDGE_ISR_PCI_MST_TIMEOUT|BRIDGE_ISR_PCI_ABORT)
 522
 523 #define BRIDGE_ISR_PCIBUS_ERROR         \
 524                 (BRIDGE_ISR_PCIBUS_PIOERR|BRIDGE_ISR_PCI_PERR|          \
 525                  BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_RETRY_CNT|          \
 526                  BRIDGE_ISR_PCI_PARITY)
 527
 528 #define BRIDGE_ISR_XTALK_ERROR          \
 529                 (BRIDGE_ISR_XREAD_REQ_TIMEOUT|BRIDGE_ISR_XREQ_FIFO_OFLOW|\
 530                  BRIDGE_ISR_UNSUPPORTED_XOP|BRIDGE_ISR_INVLD_ADDR|      \
 531                  BRIDGE_ISR_REQ_XTLK_ERR|BRIDGE_ISR_RESP_XTLK_ERR|      \
 532                  BRIDGE_ISR_BAD_XREQ_PKT|BRIDGE_ISR_BAD_XRESP_PKT|      \
 533                  BRIDGE_ISR_UNEXP_RESP)
 534
 535 #define BRIDGE_ISR_ERRORS               \
 536                 (BRIDGE_ISR_LINK_ERROR|BRIDGE_ISR_PCIBUS_ERROR|         \
 537                  BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR|          \
 538                  BRIDGE_ISR_PMU_ESIZE_FAULT)
 539
 540 /*
 541  * List of Errors which are fatal and kill the sytem
 542  */
 543 #define BRIDGE_ISR_ERROR_FATAL          \
 544                 ((BRIDGE_ISR_XTALK_ERROR & ~BRIDGE_ISR_XREAD_REQ_TIMEOUT)|\
 545                  BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_PARITY )
 546
 547 #define BRIDGE_ISR_ERROR_DUMP           \
 548                 (BRIDGE_ISR_PCIBUS_ERROR|BRIDGE_ISR_PMU_ESIZE_FAULT|    \
 549                  BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR)
 550
 551 /* Bridge interrupt enable register bits definition */
 552 #define BRIDGE_IMR_UNEXP_RESP           BRIDGE_ISR_UNEXP_RESP
 553 #define BRIDGE_IMR_PMU_ESIZE_FAULT      BRIDGE_ISR_PMU_ESIZE_FAULT
 554 #define BRIDGE_IMR_BAD_XRESP_PKT        BRIDGE_ISR_BAD_XRESP_PKT
 555 #define BRIDGE_IMR_BAD_XREQ_PKT         BRIDGE_ISR_BAD_XREQ_PKT
 556 #define BRIDGE_IMR_RESP_XTLK_ERR        BRIDGE_ISR_RESP_XTLK_ERR
 557 #define BRIDGE_IMR_REQ_XTLK_ERR         BRIDGE_ISR_REQ_XTLK_ERR
 558 #define BRIDGE_IMR_INVLD_ADDR           BRIDGE_ISR_INVLD_ADDR
 559 #define BRIDGE_IMR_UNSUPPORTED_XOP      BRIDGE_ISR_UNSUPPORTED_XOP
 560 #define BRIDGE_IMR_XREQ_FIFO_OFLOW      BRIDGE_ISR_XREQ_FIFO_OFLOW
 561 #define BRIDGE_IMR_LLP_REC_SNERR        BRIDGE_ISR_LLP_REC_SNERR
 562 #define BRIDGE_IMR_LLP_REC_CBERR        BRIDGE_ISR_LLP_REC_CBERR
 563 #define BRIDGE_IMR_LLP_RCTY             BRIDGE_ISR_LLP_RCTY
 564 #define BRIDGE_IMR_LLP_TX_RETRY         BRIDGE_ISR_LLP_TX_RETRY
 565 #define BRIDGE_IMR_LLP_TCTY             BRIDGE_ISR_LLP_TCTY
 566 #define BRIDGE_IMR_SSRAM_PERR           BRIDGE_ISR_SSRAM_PERR
 567 #define BRIDGE_IMR_PCI_ABORT            BRIDGE_ISR_PCI_ABORT
 568 #define BRIDGE_IMR_PCI_PARITY           BRIDGE_ISR_PCI_PARITY
 569 #define BRIDGE_IMR_PCI_SERR             BRIDGE_ISR_PCI_SERR
 570 #define BRIDGE_IMR_PCI_PERR             BRIDGE_ISR_PCI_PERR
 571 #define BRIDGE_IMR_PCI_MST_TIMEOUT      BRIDGE_ISR_PCI_MST_TIMEOUT
 572 #define BRIDGE_IMR_GIO_MST_TIMEOUT      BRIDGE_ISR_GIO_MST_TIMEOUT
 573 #define BRIDGE_IMR_PCI_RETRY_CNT        BRIDGE_ISR_PCI_RETRY_CNT
 574 #define BRIDGE_IMR_XREAD_REQ_TIMEOUT    BRIDGE_ISR_XREAD_REQ_TIMEOUT
 575 #define BRIDGE_IMR_GIO_B_ENBL_ERR       BRIDGE_ISR_GIO_B_ENBL_ERR
 576 #define BRIDGE_IMR_INT_MSK              BRIDGE_ISR_INT_MSK
 577 #define BRIDGE_IMR_INT(x)               BRIDGE_ISR_INT(x)
 578
 579 /* Bridge interrupt reset register bits definition */
 580 #define BRIDGE_IRR_MULTI_CLR            (0x1 << 6)
 581 #define BRIDGE_IRR_CRP_GRP_CLR          (0x1 << 5)
 582 #define BRIDGE_IRR_RESP_BUF_GRP_CLR     (0x1 << 4)
 583 #define BRIDGE_IRR_REQ_DSP_GRP_CLR      (0x1 << 3)
 584 #define BRIDGE_IRR_LLP_GRP_CLR          (0x1 << 2)
 585 #define BRIDGE_IRR_SSRAM_GRP_CLR        (0x1 << 1)
 586 #define BRIDGE_IRR_PCI_GRP_CLR          (0x1 << 0)
 587 #define BRIDGE_IRR_GIO_GRP_CLR          (0x1 << 0)
 588 #define BRIDGE_IRR_ALL_CLR              0x7f
 589
 590 #define BRIDGE_IRR_CRP_GRP              (BRIDGE_ISR_UNEXP_RESP | \
 591                                          BRIDGE_ISR_XREQ_FIFO_OFLOW)
 592 #define BRIDGE_IRR_RESP_BUF_GRP         (BRIDGE_ISR_BAD_XRESP_PKT | \
 593                                          BRIDGE_ISR_RESP_XTLK_ERR | \
 594                                          BRIDGE_ISR_XREAD_REQ_TIMEOUT)
 595 #define BRIDGE_IRR_REQ_DSP_GRP          (BRIDGE_ISR_UNSUPPORTED_XOP | \
 596                                          BRIDGE_ISR_BAD_XREQ_PKT | \
 597                                          BRIDGE_ISR_REQ_XTLK_ERR | \
 598                                          BRIDGE_ISR_INVLD_ADDR)
 599 #define BRIDGE_IRR_LLP_GRP              (BRIDGE_ISR_LLP_REC_SNERR | \
 600                                          BRIDGE_ISR_LLP_REC_CBERR | \
 601                                          BRIDGE_ISR_LLP_RCTY | \
 602                                          BRIDGE_ISR_LLP_TX_RETRY | \
 603                                          BRIDGE_ISR_LLP_TCTY)
 604 #define BRIDGE_IRR_SSRAM_GRP            (BRIDGE_ISR_SSRAM_PERR | \
 605                                          BRIDGE_ISR_PMU_ESIZE_FAULT)
 606 #define BRIDGE_IRR_PCI_GRP              (BRIDGE_ISR_PCI_ABORT | \
 607                                          BRIDGE_ISR_PCI_PARITY | \
 608                                          BRIDGE_ISR_PCI_SERR | \
 609                                          BRIDGE_ISR_PCI_PERR | \
 610                                          BRIDGE_ISR_PCI_MST_TIMEOUT | \
 611                                          BRIDGE_ISR_PCI_RETRY_CNT)
 612
 613 #define BRIDGE_IRR_GIO_GRP              (BRIDGE_ISR_GIO_B_ENBL_ERR | \
 614                                          BRIDGE_ISR_GIO_MST_TIMEOUT)
 615
 616 /* Bridge INT_DEV register bits definition */
 617 #define BRIDGE_INT_DEV_SHFT(n)          ((n)*3)
 618 #define BRIDGE_INT_DEV_MASK(n)          (0x7 << BRIDGE_INT_DEV_SHFT(n))
 619 #define BRIDGE_INT_DEV_SET(_dev, _line) (_dev << BRIDGE_INT_DEV_SHFT(_line))
 620
 621 /* Bridge interrupt(x) register bits definition */
 622 #define BRIDGE_INT_ADDR_HOST            0x0003FF00
 623 #define BRIDGE_INT_ADDR_FLD             0x000000FF
 624
 625 #define BRIDGE_TMO_PCI_RETRY_HLD_MASK   0x1f0000
 626 #define BRIDGE_TMO_GIO_TIMEOUT_MASK     0x001000
 627 #define BRIDGE_TMO_PCI_RETRY_CNT_MASK   0x0003ff
 628
 629 #define BRIDGE_TMO_PCI_RETRY_CNT_MAX    0x3ff
 630
 631 /*
 632  * The NASID should be shifted by this amount and stored into the
 633  * interrupt(x) register.
 634  */
 635 #define BRIDGE_INT_ADDR_NASID_SHFT      8
 636
 637 /*
 638  * The BRIDGE_INT_ADDR_DEST_IO bit should be set to send an interrupt to
 639  * memory.
 640  */
 641 #define BRIDGE_INT_ADDR_DEST_IO         (1 << 17)
 642 #define BRIDGE_INT_ADDR_DEST_MEM        0
 643 #define BRIDGE_INT_ADDR_MASK            (1 << 17)
 644
 645 /* Bridge device(x) register bits definition */
 646 #define BRIDGE_DEV_ERR_LOCK_EN          0x10000000
 647 #define BRIDGE_DEV_PAGE_CHK_DIS         0x08000000
 648 #define BRIDGE_DEV_FORCE_PCI_PAR        0x04000000
 649 #define BRIDGE_DEV_VIRTUAL_EN           0x02000000
 650 #define BRIDGE_DEV_PMU_WRGA_EN          0x01000000
 651 #define BRIDGE_DEV_DIR_WRGA_EN          0x00800000
 652 #define BRIDGE_DEV_DEV_SIZE             0x00400000
 653 #define BRIDGE_DEV_RT                   0x00200000
 654 #define BRIDGE_DEV_SWAP_PMU             0x00100000
 655 #define BRIDGE_DEV_SWAP_DIR             0x00080000
 656 #define BRIDGE_DEV_PREF                 0x00040000
 657 #define BRIDGE_DEV_PRECISE              0x00020000
 658 #define BRIDGE_DEV_COH                  0x00010000
 659 #define BRIDGE_DEV_BARRIER              0x00008000
 660 #define BRIDGE_DEV_GBR                  0x00004000
 661 #define BRIDGE_DEV_DEV_SWAP             0x00002000
 662 #define BRIDGE_DEV_DEV_IO_MEM           0x00001000
 663 #define BRIDGE_DEV_OFF_MASK             0x00000fff
 664 #define BRIDGE_DEV_OFF_ADDR_SHFT        20
 665
 666 #define BRIDGE_DEV_PMU_BITS             (BRIDGE_DEV_PMU_WRGA_EN         | \
 667                                          BRIDGE_DEV_SWAP_PMU)
 668 #define BRIDGE_DEV_D32_BITS             (BRIDGE_DEV_DIR_WRGA_EN         | \
 669                                          BRIDGE_DEV_SWAP_DIR            | \
 670                                          BRIDGE_DEV_PREF                | \
 671                                          BRIDGE_DEV_PRECISE             | \
 672                                          BRIDGE_DEV_COH                 | \
 673                                          BRIDGE_DEV_BARRIER)
 674 #define BRIDGE_DEV_D64_BITS             (BRIDGE_DEV_DIR_WRGA_EN         | \
 675                                          BRIDGE_DEV_SWAP_DIR            | \
 676                                          BRIDGE_DEV_COH                 | \
 677                                          BRIDGE_DEV_BARRIER)
 678
 679 /* Bridge Error Upper register bit field definition */
 680 #define BRIDGE_ERRUPPR_DEVMASTER        (0x1 << 20)     /* Device was master */
 681 #define BRIDGE_ERRUPPR_PCIVDEV          (0x1 << 19)     /* Virtual Req value */
 682 #define BRIDGE_ERRUPPR_DEVNUM_SHFT      (16)
 683 #define BRIDGE_ERRUPPR_DEVNUM_MASK      (0x7 << BRIDGE_ERRUPPR_DEVNUM_SHFT)
 684 #define BRIDGE_ERRUPPR_DEVICE(err)      (((err) >> BRIDGE_ERRUPPR_DEVNUM_SHFT) & 0x7)
 685 #define BRIDGE_ERRUPPR_ADDRMASK         (0xFFFF)
 686
 687 /* Bridge interrupt mode register bits definition */
 688 #define BRIDGE_INTMODE_CLR_PKT_EN(x)    (0x1 << (x))
 689
 690 /* this should be written to the xbow's link_control(x) register */
 691 #define BRIDGE_CREDIT   3
 692
 693 /* RRB assignment register */
 694 #define BRIDGE_RRB_EN   0x8     /* after shifting down */
 695 #define BRIDGE_RRB_DEV  0x7     /* after shifting down */
 696 #define BRIDGE_RRB_VDEV 0x4     /* after shifting down */
 697 #define BRIDGE_RRB_PDEV 0x3     /* after shifting down */
 698
 699 /* RRB status register */
 700 #define BRIDGE_RRB_VALID(r)     (0x00010000<<(r))
 701 #define BRIDGE_RRB_INUSE(r)     (0x00000001<<(r))
 702
 703 /* RRB clear register */
 704 #define BRIDGE_RRB_CLEAR(r)     (0x00000001<<(r))
 705
 706 /* xbox system controller declarations */
 707 #define XBOX_BRIDGE_WID         8
 708 #define FLASH_PROM1_BASE        0xE00000 /* To read the xbox sysctlr status */
 709 #define XBOX_RPS_EXISTS         1 << 6   /* RPS bit in status register */
 710 #define XBOX_RPS_FAIL           1 << 4   /* RPS status bit in register */
 711
 712 /* ========================================================================
 713  */
 714 /*
 715  * Macros for Xtalk to Bridge bus (PCI/GIO) PIO
 716  * refer to section 4.2.1 of Bridge Spec for xtalk to PCI/GIO PIO mappings
 717  */
 718 /* XTALK addresses that map into Bridge Bus addr space */
 719 #define BRIDGE_PIO32_XTALK_ALIAS_BASE   0x000040000000L
 720 #define BRIDGE_PIO32_XTALK_ALIAS_LIMIT  0x00007FFFFFFFL
 721 #define BRIDGE_PIO64_XTALK_ALIAS_BASE   0x000080000000L
 722 #define BRIDGE_PIO64_XTALK_ALIAS_LIMIT  0x0000BFFFFFFFL
 723 #define BRIDGE_PCIIO_XTALK_ALIAS_BASE   0x000100000000L
 724 #define BRIDGE_PCIIO_XTALK_ALIAS_LIMIT  0x0001FFFFFFFFL
 725
 726 /* Ranges of PCI bus space that can be accessed via PIO from xtalk */
 727 #define BRIDGE_MIN_PIO_ADDR_MEM         0x00000000      /* 1G PCI memory space */
 728 #define BRIDGE_MAX_PIO_ADDR_MEM         0x3fffffff
 729 #define BRIDGE_MIN_PIO_ADDR_IO          0x00000000      /* 4G PCI IO space */
 730 #define BRIDGE_MAX_PIO_ADDR_IO          0xffffffff
 731
 732 /* XTALK addresses that map into PCI addresses */
 733 #define BRIDGE_PCI_MEM32_BASE           BRIDGE_PIO32_XTALK_ALIAS_BASE
 734 #define BRIDGE_PCI_MEM32_LIMIT          BRIDGE_PIO32_XTALK_ALIAS_LIMIT
 735 #define BRIDGE_PCI_MEM64_BASE           BRIDGE_PIO64_XTALK_ALIAS_BASE
 736 #define BRIDGE_PCI_MEM64_LIMIT          BRIDGE_PIO64_XTALK_ALIAS_LIMIT
 737 #define BRIDGE_PCI_IO_BASE              BRIDGE_PCIIO_XTALK_ALIAS_BASE
 738 #define BRIDGE_PCI_IO_LIMIT             BRIDGE_PCIIO_XTALK_ALIAS_LIMIT
 739
 740 /*
 741  * Macros for Bridge bus (PCI/GIO) to Xtalk DMA
 742  */
 743 /* Bridge Bus DMA addresses */
 744 #define BRIDGE_LOCAL_BASE               0
 745 #define BRIDGE_DMA_MAPPED_BASE          0x40000000
 746 #define BRIDGE_DMA_MAPPED_SIZE          0x40000000      /* 1G Bytes */
 747 #define BRIDGE_DMA_DIRECT_BASE          0x80000000
 748 #define BRIDGE_DMA_DIRECT_SIZE          0x80000000      /* 2G Bytes */
 749
 750 #define PCI32_LOCAL_BASE                BRIDGE_LOCAL_BASE
 751
 752 /* PCI addresses of regions decoded by Bridge for DMA */
 753 #define PCI32_MAPPED_BASE               BRIDGE_DMA_MAPPED_BASE
 754 #define PCI32_DIRECT_BASE               BRIDGE_DMA_DIRECT_BASE
 755
 756 #define IS_PCI32_LOCAL(x)       ((ulong_t)(x) < PCI32_MAPPED_BASE)
 757 #define IS_PCI32_MAPPED(x)      ((ulong_t)(x) < PCI32_DIRECT_BASE && \
 758                                         (ulong_t)(x) >= PCI32_MAPPED_BASE)
 759 #define IS_PCI32_DIRECT(x)      ((ulong_t)(x) >= PCI32_MAPPED_BASE)
 760 #define IS_PCI64(x)             ((ulong_t)(x) >= PCI64_BASE)
 761
 762 /*
 763  * The GIO address space.
 764  */
 765 /* Xtalk to GIO PIO */
 766 #define BRIDGE_GIO_MEM32_BASE           BRIDGE_PIO32_XTALK_ALIAS_BASE
 767 #define BRIDGE_GIO_MEM32_LIMIT          BRIDGE_PIO32_XTALK_ALIAS_LIMIT
 768
 769 #define GIO_LOCAL_BASE                  BRIDGE_LOCAL_BASE
 770
 771 /* GIO addresses of regions decoded by Bridge for DMA */
 772 #define GIO_MAPPED_BASE                 BRIDGE_DMA_MAPPED_BASE
 773 #define GIO_DIRECT_BASE                 BRIDGE_DMA_DIRECT_BASE
 774
 775 #define IS_GIO_LOCAL(x)         ((ulong_t)(x) < GIO_MAPPED_BASE)
 776 #define IS_GIO_MAPPED(x)        ((ulong_t)(x) < GIO_DIRECT_BASE && \
 777                                         (ulong_t)(x) >= GIO_MAPPED_BASE)
 778 #define IS_GIO_DIRECT(x)        ((ulong_t)(x) >= GIO_MAPPED_BASE)
 779
 780 /* PCI to xtalk mapping */
 781
 782 /* given a DIR_OFF value and a pci/gio 32 bits direct address, determine
 783  * which xtalk address is accessed
 784  */
 785 #define BRIDGE_DIRECT_32_SEG_SIZE       BRIDGE_DMA_DIRECT_SIZE
 786 #define BRIDGE_DIRECT_32_TO_XTALK(dir_off,adr)          \
 787         ((dir_off) * BRIDGE_DIRECT_32_SEG_SIZE +        \
 788                 ((adr) & (BRIDGE_DIRECT_32_SEG_SIZE - 1)) + PHYS_RAMBASE)
 789
 790 /* 64-bit address attribute masks */
 791 #define PCI64_ATTR_TARG_MASK    0xf000000000000000
 792 #define PCI64_ATTR_TARG_SHFT    60
 793 #define PCI64_ATTR_PREF         0x0800000000000000
 794 #define PCI64_ATTR_PREC         0x0400000000000000
 795 #define PCI64_ATTR_VIRTUAL      0x0200000000000000
 796 #define PCI64_ATTR_BAR          0x0100000000000000
 797 #define PCI64_ATTR_RMF_MASK     0x00ff000000000000
 798 #define PCI64_ATTR_RMF_SHFT     48
 799
 800 #ifndef __ASSEMBLY__
 801 /* Address translation entry for mapped pci32 accesses */
 802 typedef union ate_u {
 803         u64     ent;
 804         struct ate_s {
 805                 u64     rmf:16;
 806                 u64     addr:36;
 807                 u64     targ:4;
 808                 u64     reserved:3;
 809                 u64     barrier:1;
 810                 u64     prefetch:1;
 811                 u64     precise:1;
 812                 u64     coherent:1;
 813                 u64     valid:1;
 814         } field;
 815 } ate_t;
 816 #endif /* !__ASSEMBLY__ */
 817
 818 #define ATE_V           0x01
 819 #define ATE_CO          0x02
 820 #define ATE_PREC        0x04
 821 #define ATE_PREF        0x08
 822 #define ATE_BAR         0x10
 823
 824 #define ATE_PFNSHIFT            12
 825 #define ATE_TIDSHIFT            8
 826 #define ATE_RMFSHIFT            48
 827
 828 #define mkate(xaddr, xid, attr) ((xaddr) & 0x0000fffffffff000ULL) | \
 829                                 ((xid)<<ATE_TIDSHIFT) | \
 830                                 (attr)
 831
 832 #define BRIDGE_INTERNAL_ATES    128
 833
 834 struct bridge_controller {
 835         struct pci_controller   pc;
 836         struct resource         mem;
 837         struct resource         io;
 838         bridge_t                *base;
 839         nasid_t                 nasid;
 840         unsigned int            widget_id;
 841         unsigned int            irq_cpu;
 842         dma64_addr_t            baddr;
 843         unsigned int            pci_int[8];
 844 };
 845
 846 #define BRIDGE_CONTROLLER(bus) \
 847         ((struct bridge_controller *)((bus)->sysdata))
 848
 849 extern void register_bridge_irq(unsigned int irq);
 850 extern int request_bridge_irq(struct bridge_controller *bc);
 851
 852 extern struct pci_ops bridge_pci_ops;
 853
 854 #endif /* _ASM_PCI_BRIDGE_H */