include/asm-alpha/core_cia.h

   1 #ifndef __ALPHA_CIA__H__
   2 #define __ALPHA_CIA__H__
   3
   4 /* Define to experiment with fitting everything into one 512MB HAE window.  */
   5 #define CIA_ONE_HAE_WINDOW 1
   6
   7 #include <linux/config.h>
   8 #include <linux/types.h>
   9 #include <asm/compiler.h>
  10
  11 /*
  12  * CIA is the internal name for the 21171 chipset which provides
  13  * memory controller and PCI access for the 21164 chip based systems.
  14  * Also supported here is the 21172 (CIA-2) and 21174 (PYXIS).
  15  *
  16  * The lineage is a bit confused, since the 21174 was reportedly started
  17  * from the 21171 Pass 1 mask, and so is missing bug fixes that appear
  18  * in 21171 Pass 2 and 21172, but it also contains additional features.
  19  *
  20  * This file is based on:
  21  *
  22  * DECchip 21171 Core Logic Chipset
  23  * Technical Reference Manual
  24  *
  25  * EC-QE18B-TE
  26  *
  27  * david.rusling@reo.mts.dec.com Initial Version.
  28  *
  29  */
  30
  31 /*
  32  * CIA ADDRESS BIT DEFINITIONS
  33  *
  34  *  3333 3333 3322 2222 2222 1111 1111 11
  35  *  9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
  36  *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
  37  *  1                                             000
  38  *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
  39  *  |                                             |\|
  40  *  |                               Byte Enable --+ |
  41  *  |                             Transfer Length --+
  42  *  +-- IO space, not cached
  43  *
  44  *   Byte      Transfer
  45  *   Enable    Length    Transfer  Byte    Address
  46  *   adr<6:5>  adr<4:3>  Length    Enable  Adder
  47  *   ---------------------------------------------
  48  *      00        00      Byte      1110   0x000
  49  *      01        00      Byte      1101   0x020
  50  *      10        00      Byte      1011   0x040
  51  *      11        00      Byte      0111   0x060
  52  *
  53  *      00        01      Word      1100   0x008
  54  *      01        01      Word      1001   0x028 <= Not supported in this code.
  55  *      10        01      Word      0011   0x048
  56  *
  57  *      00        10      Tribyte   1000   0x010
  58  *      01        10      Tribyte   0001   0x030
  59  *
  60  *      10        11      Longword  0000   0x058
  61  *
  62  *      Note that byte enables are asserted low.
  63  *
  64  */
  65
  66 #define CIA_MEM_R1_MASK 0x1fffffff  /* SPARSE Mem region 1 mask is 29 bits */
  67 #define CIA_MEM_R2_MASK 0x07ffffff  /* SPARSE Mem region 2 mask is 27 bits */
  68 #define CIA_MEM_R3_MASK 0x03ffffff  /* SPARSE Mem region 3 mask is 26 bits */
  69
  70 /*
  71  * 21171-CA Control and Status Registers
  72  */
  73 #define CIA_IOC_CIA_REV                 (IDENT_ADDR + 0x8740000080UL)
  74 #  define CIA_REV_MASK                  0xff
  75 #define CIA_IOC_PCI_LAT                 (IDENT_ADDR + 0x87400000C0UL)
  76 #define CIA_IOC_CIA_CTRL                (IDENT_ADDR + 0x8740000100UL)
  77 #  define CIA_CTRL_PCI_EN               (1 << 0)
  78 #  define CIA_CTRL_PCI_LOCK_EN          (1 << 1)
  79 #  define CIA_CTRL_PCI_LOOP_EN          (1 << 2)
  80 #  define CIA_CTRL_FST_BB_EN            (1 << 3)
  81 #  define CIA_CTRL_PCI_MST_EN           (1 << 4)
  82 #  define CIA_CTRL_PCI_MEM_EN           (1 << 5)
  83 #  define CIA_CTRL_PCI_REQ64_EN         (1 << 6)
  84 #  define CIA_CTRL_PCI_ACK64_EN         (1 << 7)
  85 #  define CIA_CTRL_ADDR_PE_EN           (1 << 8)
  86 #  define CIA_CTRL_PERR_EN              (1 << 9)
  87 #  define CIA_CTRL_FILL_ERR_EN          (1 << 10)
  88 #  define CIA_CTRL_MCHK_ERR_EN          (1 << 11)
  89 #  define CIA_CTRL_ECC_CHK_EN           (1 << 12)
  90 #  define CIA_CTRL_ASSERT_IDLE_BC       (1 << 13)
  91 #  define CIA_CTRL_COM_IDLE_BC          (1 << 14)
  92 #  define CIA_CTRL_CSR_IOA_BYPASS       (1 << 15)
  93 #  define CIA_CTRL_IO_FLUSHREQ_EN       (1 << 16)
  94 #  define CIA_CTRL_CPU_FLUSHREQ_EN      (1 << 17)
  95 #  define CIA_CTRL_ARB_CPU_EN           (1 << 18)
  96 #  define CIA_CTRL_EN_ARB_LINK          (1 << 19)
  97 #  define CIA_CTRL_RD_TYPE_SHIFT        20
  98 #  define CIA_CTRL_RL_TYPE_SHIFT        24
  99 #  define CIA_CTRL_RM_TYPE_SHIFT        28
 100 #  define CIA_CTRL_EN_DMA_RD_PERF       (1 << 31)
 101 #define CIA_IOC_CIA_CNFG                (IDENT_ADDR + 0x8740000140UL)
 102 #  define CIA_CNFG_IOA_BWEN             (1 << 0)
 103 #  define CIA_CNFG_PCI_MWEN             (1 << 4)
 104 #  define CIA_CNFG_PCI_DWEN             (1 << 5)
 105 #  define CIA_CNFG_PCI_WLEN             (1 << 8)
 106 #define CIA_IOC_FLASH_CTRL              (IDENT_ADDR + 0x8740000200UL)
 107 #define CIA_IOC_HAE_MEM                 (IDENT_ADDR + 0x8740000400UL)
 108 #define CIA_IOC_HAE_IO                  (IDENT_ADDR + 0x8740000440UL)
 109 #define CIA_IOC_CFG                     (IDENT_ADDR + 0x8740000480UL)
 110 #define CIA_IOC_CACK_EN                 (IDENT_ADDR + 0x8740000600UL)
 111 #  define CIA_CACK_EN_LOCK_EN           (1 << 0)
 112 #  define CIA_CACK_EN_MB_EN             (1 << 1)
 113 #  define CIA_CACK_EN_SET_DIRTY_EN      (1 << 2)
 114 #  define CIA_CACK_EN_BC_VICTIM_EN      (1 << 3)
 115
 116
 117 /*
 118  * 21171-CA Diagnostic Registers
 119  */
 120 #define CIA_IOC_CIA_DIAG                (IDENT_ADDR + 0x8740002000UL)
 121 #define CIA_IOC_DIAG_CHECK              (IDENT_ADDR + 0x8740003000UL)
 122
 123 /*
 124  * 21171-CA Performance Monitor registers
 125  */
 126 #define CIA_IOC_PERF_MONITOR            (IDENT_ADDR + 0x8740004000UL)
 127 #define CIA_IOC_PERF_CONTROL            (IDENT_ADDR + 0x8740004040UL)
 128
 129 /*
 130  * 21171-CA Error registers
 131  */
 132 #define CIA_IOC_CPU_ERR0                (IDENT_ADDR + 0x8740008000UL)
 133 #define CIA_IOC_CPU_ERR1                (IDENT_ADDR + 0x8740008040UL)
 134 #define CIA_IOC_CIA_ERR                 (IDENT_ADDR + 0x8740008200UL)
 135 #  define CIA_ERR_COR_ERR               (1 << 0)
 136 #  define CIA_ERR_UN_COR_ERR            (1 << 1)
 137 #  define CIA_ERR_CPU_PE                (1 << 2)
 138 #  define CIA_ERR_MEM_NEM               (1 << 3)
 139 #  define CIA_ERR_PCI_SERR              (1 << 4)
 140 #  define CIA_ERR_PERR                  (1 << 5)
 141 #  define CIA_ERR_PCI_ADDR_PE           (1 << 6)
 142 #  define CIA_ERR_RCVD_MAS_ABT          (1 << 7)
 143 #  define CIA_ERR_RCVD_TAR_ABT          (1 << 8)
 144 #  define CIA_ERR_PA_PTE_INV            (1 << 9)
 145 #  define CIA_ERR_FROM_WRT_ERR          (1 << 10)
 146 #  define CIA_ERR_IOA_TIMEOUT           (1 << 11)
 147 #  define CIA_ERR_LOST_CORR_ERR         (1 << 16)
 148 #  define CIA_ERR_LOST_UN_CORR_ERR      (1 << 17)
 149 #  define CIA_ERR_LOST_CPU_PE           (1 << 18)
 150 #  define CIA_ERR_LOST_MEM_NEM          (1 << 19)
 151 #  define CIA_ERR_LOST_PERR             (1 << 21)
 152 #  define CIA_ERR_LOST_PCI_ADDR_PE      (1 << 22)
 153 #  define CIA_ERR_LOST_RCVD_MAS_ABT     (1 << 23)
 154 #  define CIA_ERR_LOST_RCVD_TAR_ABT     (1 << 24)
 155 #  define CIA_ERR_LOST_PA_PTE_INV       (1 << 25)
 156 #  define CIA_ERR_LOST_FROM_WRT_ERR     (1 << 26)
 157 #  define CIA_ERR_LOST_IOA_TIMEOUT      (1 << 27)
 158 #  define CIA_ERR_VALID                 (1 << 31)
 159 #define CIA_IOC_CIA_STAT                (IDENT_ADDR + 0x8740008240UL)
 160 #define CIA_IOC_ERR_MASK                (IDENT_ADDR + 0x8740008280UL)
 161 #define CIA_IOC_CIA_SYN                 (IDENT_ADDR + 0x8740008300UL)
 162 #define CIA_IOC_MEM_ERR0                (IDENT_ADDR + 0x8740008400UL)
 163 #define CIA_IOC_MEM_ERR1                (IDENT_ADDR + 0x8740008440UL)
 164 #define CIA_IOC_PCI_ERR0                (IDENT_ADDR + 0x8740008800UL)
 165 #define CIA_IOC_PCI_ERR1                (IDENT_ADDR + 0x8740008840UL)
 166 #define CIA_IOC_PCI_ERR3                (IDENT_ADDR + 0x8740008880UL)
 167
 168 /*
 169  * 21171-CA System configuration registers
 170  */
 171 #define CIA_IOC_MCR                     (IDENT_ADDR + 0x8750000000UL)
 172 #define CIA_IOC_MBA0                    (IDENT_ADDR + 0x8750000600UL)
 173 #define CIA_IOC_MBA2                    (IDENT_ADDR + 0x8750000680UL)
 174 #define CIA_IOC_MBA4                    (IDENT_ADDR + 0x8750000700UL)
 175 #define CIA_IOC_MBA6                    (IDENT_ADDR + 0x8750000780UL)
 176 #define CIA_IOC_MBA8                    (IDENT_ADDR + 0x8750000800UL)
 177 #define CIA_IOC_MBAA                    (IDENT_ADDR + 0x8750000880UL)
 178 #define CIA_IOC_MBAC                    (IDENT_ADDR + 0x8750000900UL)
 179 #define CIA_IOC_MBAE                    (IDENT_ADDR + 0x8750000980UL)
 180 #define CIA_IOC_TMG0                    (IDENT_ADDR + 0x8750000B00UL)
 181 #define CIA_IOC_TMG1                    (IDENT_ADDR + 0x8750000B40UL)
 182 #define CIA_IOC_TMG2                    (IDENT_ADDR + 0x8750000B80UL)
 183
 184 /*
 185  * 2117A-CA PCI Address and Scatter-Gather Registers.
 186  */
 187 #define CIA_IOC_PCI_TBIA                (IDENT_ADDR + 0x8760000100UL)
 188
 189 #define CIA_IOC_PCI_W0_BASE             (IDENT_ADDR + 0x8760000400UL)
 190 #define CIA_IOC_PCI_W0_MASK             (IDENT_ADDR + 0x8760000440UL)
 191 #define CIA_IOC_PCI_T0_BASE             (IDENT_ADDR + 0x8760000480UL)
 192
 193 #define CIA_IOC_PCI_W1_BASE             (IDENT_ADDR + 0x8760000500UL)
 194 #define CIA_IOC_PCI_W1_MASK             (IDENT_ADDR + 0x8760000540UL)
 195 #define CIA_IOC_PCI_T1_BASE             (IDENT_ADDR + 0x8760000580UL)
 196
 197 #define CIA_IOC_PCI_W2_BASE             (IDENT_ADDR + 0x8760000600UL)
 198 #define CIA_IOC_PCI_W2_MASK             (IDENT_ADDR + 0x8760000640UL)
 199 #define CIA_IOC_PCI_T2_BASE             (IDENT_ADDR + 0x8760000680UL)
 200
 201 #define CIA_IOC_PCI_W3_BASE             (IDENT_ADDR + 0x8760000700UL)
 202 #define CIA_IOC_PCI_W3_MASK             (IDENT_ADDR + 0x8760000740UL)
 203 #define CIA_IOC_PCI_T3_BASE             (IDENT_ADDR + 0x8760000780UL)
 204
 205 #define CIA_IOC_PCI_Wn_BASE(N)  (IDENT_ADDR + 0x8760000400UL + (N)*0x100)
 206 #define CIA_IOC_PCI_Wn_MASK(N)  (IDENT_ADDR + 0x8760000440UL + (N)*0x100)
 207 #define CIA_IOC_PCI_Tn_BASE(N)  (IDENT_ADDR + 0x8760000480UL + (N)*0x100)
 208
 209 #define CIA_IOC_PCI_W_DAC               (IDENT_ADDR + 0x87600007C0UL)
 210
 211 /*
 212  * 2117A-CA Address Translation Registers.
 213  */
 214
 215 /* 8 tag registers, the first 4 of which are lockable.  */
 216 #define CIA_IOC_TB_TAGn(n) \
 217         (IDENT_ADDR + 0x8760000800UL + (n)*0x40)
 218
 219 /* 4 page registers per tag register.  */
 220 #define CIA_IOC_TBn_PAGEm(n,m) \
 221         (IDENT_ADDR + 0x8760001000UL + (n)*0x100 + (m)*0x40)
 222
 223 /*
 224  * Memory spaces:
 225  */
 226 #define CIA_IACK_SC                     (IDENT_ADDR + 0x8720000000UL)
 227 #define CIA_CONF                        (IDENT_ADDR + 0x8700000000UL)
 228 #define CIA_IO                          (IDENT_ADDR + 0x8580000000UL)
 229 #define CIA_SPARSE_MEM                  (IDENT_ADDR + 0x8000000000UL)
 230 #define CIA_SPARSE_MEM_R2               (IDENT_ADDR + 0x8400000000UL)
 231 #define CIA_SPARSE_MEM_R3               (IDENT_ADDR + 0x8500000000UL)
 232 #define CIA_DENSE_MEM                   (IDENT_ADDR + 0x8600000000UL)
 233 #define CIA_BW_MEM                      (IDENT_ADDR + 0x8800000000UL)
 234 #define CIA_BW_IO                       (IDENT_ADDR + 0x8900000000UL)
 235 #define CIA_BW_CFG_0                    (IDENT_ADDR + 0x8a00000000UL)
 236 #define CIA_BW_CFG_1                    (IDENT_ADDR + 0x8b00000000UL)
 237
 238 /*
 239  * ALCOR's GRU ASIC registers
 240  */
 241 #define GRU_INT_REQ                     (IDENT_ADDR + 0x8780000000UL)
 242 #define GRU_INT_MASK                    (IDENT_ADDR + 0x8780000040UL)
 243 #define GRU_INT_EDGE                    (IDENT_ADDR + 0x8780000080UL)
 244 #define GRU_INT_HILO                    (IDENT_ADDR + 0x87800000C0UL)
 245 #define GRU_INT_CLEAR                   (IDENT_ADDR + 0x8780000100UL)
 246
 247 #define GRU_CACHE_CNFG                  (IDENT_ADDR + 0x8780000200UL)
 248 #define GRU_SCR                         (IDENT_ADDR + 0x8780000300UL)
 249 #define GRU_LED                         (IDENT_ADDR + 0x8780000800UL)
 250 #define GRU_RESET                       (IDENT_ADDR + 0x8780000900UL)
 251
 252 #define ALCOR_GRU_INT_REQ_BITS          0x800fffffUL
 253 #define XLT_GRU_INT_REQ_BITS            0x80003fffUL
 254 #define GRU_INT_REQ_BITS                (alpha_mv.sys.cia.gru_int_req_bits+0)
 255
 256 /*
 257  * PYXIS interrupt control registers
 258  */
 259 #define PYXIS_INT_REQ                   (IDENT_ADDR + 0x87A0000000UL)
 260 #define PYXIS_INT_MASK                  (IDENT_ADDR + 0x87A0000040UL)
 261 #define PYXIS_INT_HILO                  (IDENT_ADDR + 0x87A00000C0UL)
 262 #define PYXIS_INT_ROUTE                 (IDENT_ADDR + 0x87A0000140UL)
 263 #define PYXIS_GPO                       (IDENT_ADDR + 0x87A0000180UL)
 264 #define PYXIS_INT_CNFG                  (IDENT_ADDR + 0x87A00001C0UL)
 265 #define PYXIS_RT_COUNT                  (IDENT_ADDR + 0x87A0000200UL)
 266 #define PYXIS_INT_TIME                  (IDENT_ADDR + 0x87A0000240UL)
 267 #define PYXIS_IIC_CTRL                  (IDENT_ADDR + 0x87A00002C0UL)
 268 #define PYXIS_RESET                     (IDENT_ADDR + 0x8780000900UL)
 269
 270 /* Offset between ram physical addresses and pci64 DAC bus addresses.  */
 271 #define PYXIS_DAC_OFFSET                (1UL << 40)
 272
 273 /*
 274  * Data structure for handling CIA machine checks.
 275  */
 276
 277 /* System-specific info.  */
 278 struct el_CIA_sysdata_mcheck {
 279         unsigned long   cpu_err0;
 280         unsigned long   cpu_err1;
 281         unsigned long   cia_err;
 282         unsigned long   cia_stat;
 283         unsigned long   err_mask;
 284         unsigned long   cia_syn;
 285         unsigned long   mem_err0;
 286         unsigned long   mem_err1;
 287         unsigned long   pci_err0;
 288         unsigned long   pci_err1;
 289         unsigned long   pci_err2;
 290 };
 291
 292
 293 #ifdef __KERNEL__
 294
 295 #ifndef __EXTERN_INLINE
 296 /* Do not touch, this should *NOT* be static inline */
 297 #define __EXTERN_INLINE extern inline
 298 #define __IO_EXTERN_INLINE
 299 #endif
 300
 301 /*
 302  * I/O functions:
 303  *
 304  * CIA (the 2117x PCI/memory support chipset for the EV5 (21164)
 305  * series of processors uses a sparse address mapping scheme to
 306  * get at PCI memory and I/O.
 307  */
 308
 309 /*
 310  * Memory functions.  64-bit and 32-bit accesses are done through
 311  * dense memory space, everything else through sparse space.
 312  *
 313  * For reading and writing 8 and 16 bit quantities we need to
 314  * go through one of the three sparse address mapping regions
 315  * and use the HAE_MEM CSR to provide some bits of the address.
 316  * The following few routines use only sparse address region 1
 317  * which gives 1Gbyte of accessible space which relates exactly
 318  * to the amount of PCI memory mapping *into* system address space.
 319  * See p 6-17 of the specification but it looks something like this:
 320  *
 321  * 21164 Address:
 322  *
 323  *          3         2         1
 324  * 9876543210987654321098765432109876543210
 325  * 1ZZZZ0.PCI.QW.Address............BBLL
 326  *
 327  * ZZ = SBZ
 328  * BB = Byte offset
 329  * LL = Transfer length
 330  *
 331  * PCI Address:
 332  *
 333  * 3         2         1
 334  * 10987654321098765432109876543210
 335  * HHH....PCI.QW.Address........ 00
 336  *
 337  * HHH = 31:29 HAE_MEM CSR
 338  *
 339  */
 340
 341 #define vip     volatile int __force *
 342 #define vuip    volatile unsigned int __force *
 343 #define vulp    volatile unsigned long __force *
 344
 345 __EXTERN_INLINE unsigned int cia_ioread8(void __iomem *xaddr)
 346 {
 347         unsigned long addr = (unsigned long) xaddr;
 348         unsigned long result, base_and_type;
 349
 350         if (addr >= CIA_DENSE_MEM)
 351                 base_and_type = CIA_SPARSE_MEM + 0x00;
 352         else
 353                 base_and_type = CIA_IO + 0x00;
 354
 355         /* We can use CIA_MEM_R1_MASK for io ports too, since it is large
 356            enough to cover all io ports, and smaller than CIA_IO.  */
 357         addr &= CIA_MEM_R1_MASK;
 358         result = *(vip) ((addr << 5) + base_and_type);
 359         return __kernel_extbl(result, addr & 3);
 360 }
 361
 362 __EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr)
 363 {
 364         unsigned long addr = (unsigned long) xaddr;
 365         unsigned long w, base_and_type;
 366
 367         if (addr >= CIA_DENSE_MEM)
 368                 base_and_type = CIA_SPARSE_MEM + 0x00;
 369         else
 370                 base_and_type = CIA_IO + 0x00;
 371
 372         addr &= CIA_MEM_R1_MASK;
 373         w = __kernel_insbl(b, addr & 3);
 374         *(vuip) ((addr << 5) + base_and_type) = w;
 375 }
 376
 377 __EXTERN_INLINE unsigned int cia_ioread16(void __iomem *xaddr)
 378 {
 379         unsigned long addr = (unsigned long) xaddr;
 380         unsigned long result, base_and_type;
 381
 382         if (addr >= CIA_DENSE_MEM)
 383                 base_and_type = CIA_SPARSE_MEM + 0x08;
 384         else
 385                 base_and_type = CIA_IO + 0x08;
 386
 387         addr &= CIA_MEM_R1_MASK;
 388         result = *(vip) ((addr << 5) + base_and_type);
 389         return __kernel_extwl(result, addr & 3);
 390 }
 391
 392 __EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr)
 393 {
 394         unsigned long addr = (unsigned long) xaddr;
 395         unsigned long w, base_and_type;
 396
 397         if (addr >= CIA_DENSE_MEM)
 398                 base_and_type = CIA_SPARSE_MEM + 0x08;
 399         else
 400                 base_and_type = CIA_IO + 0x08;
 401
 402         addr &= CIA_MEM_R1_MASK;
 403         w = __kernel_inswl(b, addr & 3);
 404         *(vuip) ((addr << 5) + base_and_type) = w;
 405 }
 406
 407 __EXTERN_INLINE unsigned int cia_ioread32(void __iomem *xaddr)
 408 {
 409         unsigned long addr = (unsigned long) xaddr;
 410         if (addr < CIA_DENSE_MEM)
 411                 addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
 412         return *(vuip)addr;
 413 }
 414
 415 __EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr)
 416 {
 417         unsigned long addr = (unsigned long) xaddr;
 418         if (addr < CIA_DENSE_MEM)
 419                 addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
 420         *(vuip)addr = b;
 421 }
 422
 423 __EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr)
 424 {
 425         return (void __iomem *)(addr + CIA_IO);
 426 }
 427
 428 __EXTERN_INLINE void __iomem *cia_ioremap(unsigned long addr,
 429                                           unsigned long size)
 430 {
 431         return (void __iomem *)(addr + CIA_DENSE_MEM);
 432 }
 433
 434 __EXTERN_INLINE int cia_is_ioaddr(unsigned long addr)
 435 {
 436         return addr >= IDENT_ADDR + 0x8000000000UL;
 437 }
 438
 439 __EXTERN_INLINE int cia_is_mmio(const volatile void __iomem *addr)
 440 {
 441         return (unsigned long)addr >= CIA_DENSE_MEM;
 442 }
 443
 444 __EXTERN_INLINE void __iomem *cia_bwx_ioportmap(unsigned long addr)
 445 {
 446         return (void __iomem *)(addr + CIA_BW_IO);
 447 }
 448
 449 __EXTERN_INLINE void __iomem *cia_bwx_ioremap(unsigned long addr,
 450                                               unsigned long size)
 451 {
 452         return (void __iomem *)(addr + CIA_BW_MEM);
 453 }
 454
 455 __EXTERN_INLINE int cia_bwx_is_ioaddr(unsigned long addr)
 456 {
 457         return addr >= IDENT_ADDR + 0x8000000000UL;
 458 }
 459
 460 __EXTERN_INLINE int cia_bwx_is_mmio(const volatile void __iomem *addr)
 461 {
 462         return (unsigned long)addr < CIA_BW_IO;
 463 }
 464
 465 #undef vip
 466 #undef vuip
 467 #undef vulp
 468
 469 #undef __IO_PREFIX
 470 #define __IO_PREFIX             cia
 471 #define cia_trivial_rw_bw       2
 472 #define cia_trivial_rw_lq       1
 473 #define cia_trivial_io_bw       0
 474 #define cia_trivial_io_lq       0
 475 #define cia_trivial_iounmap     1
 476 #include <asm/io_trivial.h>
 477
 478 #undef __IO_PREFIX
 479 #define __IO_PREFIX             cia_bwx
 480 #define cia_bwx_trivial_rw_bw   1
 481 #define cia_bwx_trivial_rw_lq   1
 482 #define cia_bwx_trivial_io_bw   1
 483 #define cia_bwx_trivial_io_lq   1
 484 #define cia_bwx_trivial_iounmap 1
 485 #include <asm/io_trivial.h>
 486
 487 #undef __IO_PREFIX
 488 #ifdef CONFIG_ALPHA_PYXIS
 489 #define __IO_PREFIX             cia_bwx
 490 #else
 491 #define __IO_PREFIX             cia
 492 #endif
 493
 494 #ifdef __IO_EXTERN_INLINE
 495 #undef __EXTERN_INLINE
 496 #undef __IO_EXTERN_INLINE
 497 #endif
 498
 499 #endif /* __KERNEL__ */
 500
 501 #endif /* __ALPHA_CIA__H__ */