include/asm-alpha/core_apecs.h

   1 #ifndef __ALPHA_APECS__H__
   2 #define __ALPHA_APECS__H__
   3
   4 #include <linux/types.h>
   5 #include <asm/compiler.h>
   6
   7 /*
   8  * APECS is the internal name for the 2107x chipset which provides
   9  * memory controller and PCI access for the 21064 chip based systems.
  10  *
  11  * This file is based on:
  12  *
  13  * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets
  14  * Data Sheet
  15  *
  16  * EC-N0648-72
  17  *
  18  *
  19  * david.rusling@reo.mts.dec.com Initial Version.
  20  *
  21  */
  22
  23 /*
  24    An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address
  25    that get passed through the PCI<->ISA bridge chip. So we've gotta use
  26    both windows to max out the physical memory we can DMA to. Sigh...
  27
  28    If we try a window at 0 for 1GB as a work-around, we run into conflicts
  29    with ISA/PCI bus memory which can't be relocated, like VGA aperture and
  30    BIOS ROMs. So we must put the windows high enough to avoid these areas.
  31
  32    We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1,
  33    and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1.
  34    Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually
  35    be used for that range (via virt_to_bus()).
  36
  37    Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb,
  38    to keep virt_to_bus() from returning an address in the first window, for
  39    a data area that goes beyond the 64Mb first DMA window.  Sigh...
  40    The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but
  41    we can't just use that here, because of header file looping... :-(
  42
  43    Window 1 will be used for all DMA from the ISA bus; yes, that does
  44    limit what memory an ISA floppy or sound card or Ethernet can touch, but
  45    it's also a known limitation on other platforms as well. We use the
  46    same technique that is used on INTEL platforms with similar limitation:
  47    set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init().
  48    We trust that any ISA bus device drivers will *always* ask for DMAable
  49    memory explicitly via kmalloc()/get_free_pages() flags arguments.
  50
  51    Note that most PCI bus devices' drivers do *not* explicitly ask for
  52    DMAable memory; they count on being able to DMA to any memory they
  53    get from kmalloc()/get_free_pages(). They will also use window 1 for
  54    any physical memory accesses below 64Mb; the rest will be handled by
  55    window 2, maxing out at 1Gb of memory. I trust this is enough... :-)
  56
  57    We hope that the area before the first window is large enough so that
  58    there will be no overlap at the top end (64Mb). We *must* locate the
  59    PCI cards' memory just below window 1, so that there's still the
  60    possibility of being able to access it via SPARSE space. This is
  61    important for cards such as the Matrox Millennium, whose Xserver
  62    wants to access memory-mapped registers in byte and short lengths.
  63
  64    Note that the XL is treated differently from the AVANTI, even though
  65    for most other things they are identical. It didn't seem reasonable to
  66    make the AVANTI support pay for the limitations of the XL. It is true,
  67    however, that an XL kernel will run on an AVANTI without problems.
  68
  69    %%% All of this should be obviated by the ability to route
  70    everything through the iommu.
  71 */
  72
  73 /*
  74  * 21071-DA Control and Status registers.
  75  * These are used for PCI memory access.
  76  */
  77 #define APECS_IOC_DCSR                  (IDENT_ADDR + 0x1A0000000UL)
  78 #define APECS_IOC_PEAR                  (IDENT_ADDR + 0x1A0000020UL)
  79 #define APECS_IOC_SEAR                  (IDENT_ADDR + 0x1A0000040UL)
  80 #define APECS_IOC_DR1                   (IDENT_ADDR + 0x1A0000060UL)
  81 #define APECS_IOC_DR2                   (IDENT_ADDR + 0x1A0000080UL)
  82 #define APECS_IOC_DR3                   (IDENT_ADDR + 0x1A00000A0UL)
  83
  84 #define APECS_IOC_TB1R                  (IDENT_ADDR + 0x1A00000C0UL)
  85 #define APECS_IOC_TB2R                  (IDENT_ADDR + 0x1A00000E0UL)
  86
  87 #define APECS_IOC_PB1R                  (IDENT_ADDR + 0x1A0000100UL)
  88 #define APECS_IOC_PB2R                  (IDENT_ADDR + 0x1A0000120UL)
  89
  90 #define APECS_IOC_PM1R                  (IDENT_ADDR + 0x1A0000140UL)
  91 #define APECS_IOC_PM2R                  (IDENT_ADDR + 0x1A0000160UL)
  92
  93 #define APECS_IOC_HAXR0                 (IDENT_ADDR + 0x1A0000180UL)
  94 #define APECS_IOC_HAXR1                 (IDENT_ADDR + 0x1A00001A0UL)
  95 #define APECS_IOC_HAXR2                 (IDENT_ADDR + 0x1A00001C0UL)
  96
  97 #define APECS_IOC_PMLT                  (IDENT_ADDR + 0x1A00001E0UL)
  98
  99 #define APECS_IOC_TLBTAG0               (IDENT_ADDR + 0x1A0000200UL)
 100 #define APECS_IOC_TLBTAG1               (IDENT_ADDR + 0x1A0000220UL)
 101 #define APECS_IOC_TLBTAG2               (IDENT_ADDR + 0x1A0000240UL)
 102 #define APECS_IOC_TLBTAG3               (IDENT_ADDR + 0x1A0000260UL)
 103 #define APECS_IOC_TLBTAG4               (IDENT_ADDR + 0x1A0000280UL)
 104 #define APECS_IOC_TLBTAG5               (IDENT_ADDR + 0x1A00002A0UL)
 105 #define APECS_IOC_TLBTAG6               (IDENT_ADDR + 0x1A00002C0UL)
 106 #define APECS_IOC_TLBTAG7               (IDENT_ADDR + 0x1A00002E0UL)
 107
 108 #define APECS_IOC_TLBDATA0              (IDENT_ADDR + 0x1A0000300UL)
 109 #define APECS_IOC_TLBDATA1              (IDENT_ADDR + 0x1A0000320UL)
 110 #define APECS_IOC_TLBDATA2              (IDENT_ADDR + 0x1A0000340UL)
 111 #define APECS_IOC_TLBDATA3              (IDENT_ADDR + 0x1A0000360UL)
 112 #define APECS_IOC_TLBDATA4              (IDENT_ADDR + 0x1A0000380UL)
 113 #define APECS_IOC_TLBDATA5              (IDENT_ADDR + 0x1A00003A0UL)
 114 #define APECS_IOC_TLBDATA6              (IDENT_ADDR + 0x1A00003C0UL)
 115 #define APECS_IOC_TLBDATA7              (IDENT_ADDR + 0x1A00003E0UL)
 116
 117 #define APECS_IOC_TBIA                  (IDENT_ADDR + 0x1A0000400UL)
 118
 119
 120 /*
 121  * 21071-CA Control and Status registers.
 122  * These are used to program memory timing,
 123  *  configure memory and initialise the B-Cache.
 124  */
 125 #define APECS_MEM_GCR                   (IDENT_ADDR + 0x180000000UL)
 126 #define APECS_MEM_EDSR                  (IDENT_ADDR + 0x180000040UL)
 127 #define APECS_MEM_TAR                   (IDENT_ADDR + 0x180000060UL)
 128 #define APECS_MEM_ELAR                  (IDENT_ADDR + 0x180000080UL)
 129 #define APECS_MEM_EHAR                  (IDENT_ADDR + 0x1800000a0UL)
 130 #define APECS_MEM_SFT_RST               (IDENT_ADDR + 0x1800000c0UL)
 131 #define APECS_MEM_LDxLAR                (IDENT_ADDR + 0x1800000e0UL)
 132 #define APECS_MEM_LDxHAR                (IDENT_ADDR + 0x180000100UL)
 133 #define APECS_MEM_GTR                   (IDENT_ADDR + 0x180000200UL)
 134 #define APECS_MEM_RTR                   (IDENT_ADDR + 0x180000220UL)
 135 #define APECS_MEM_VFPR                  (IDENT_ADDR + 0x180000240UL)
 136 #define APECS_MEM_PDLDR                 (IDENT_ADDR + 0x180000260UL)
 137 #define APECS_MEM_PDhDR                 (IDENT_ADDR + 0x180000280UL)
 138
 139 /* Bank x Base Address Register */
 140 #define APECS_MEM_B0BAR                 (IDENT_ADDR + 0x180000800UL)
 141 #define APECS_MEM_B1BAR                 (IDENT_ADDR + 0x180000820UL)
 142 #define APECS_MEM_B2BAR                 (IDENT_ADDR + 0x180000840UL)
 143 #define APECS_MEM_B3BAR                 (IDENT_ADDR + 0x180000860UL)
 144 #define APECS_MEM_B4BAR                 (IDENT_ADDR + 0x180000880UL)
 145 #define APECS_MEM_B5BAR                 (IDENT_ADDR + 0x1800008A0UL)
 146 #define APECS_MEM_B6BAR                 (IDENT_ADDR + 0x1800008C0UL)
 147 #define APECS_MEM_B7BAR                 (IDENT_ADDR + 0x1800008E0UL)
 148 #define APECS_MEM_B8BAR                 (IDENT_ADDR + 0x180000900UL)
 149
 150 /* Bank x Configuration Register */
 151 #define APECS_MEM_B0BCR                 (IDENT_ADDR + 0x180000A00UL)
 152 #define APECS_MEM_B1BCR                 (IDENT_ADDR + 0x180000A20UL)
 153 #define APECS_MEM_B2BCR                 (IDENT_ADDR + 0x180000A40UL)
 154 #define APECS_MEM_B3BCR                 (IDENT_ADDR + 0x180000A60UL)
 155 #define APECS_MEM_B4BCR                 (IDENT_ADDR + 0x180000A80UL)
 156 #define APECS_MEM_B5BCR                 (IDENT_ADDR + 0x180000AA0UL)
 157 #define APECS_MEM_B6BCR                 (IDENT_ADDR + 0x180000AC0UL)
 158 #define APECS_MEM_B7BCR                 (IDENT_ADDR + 0x180000AE0UL)
 159 #define APECS_MEM_B8BCR                 (IDENT_ADDR + 0x180000B00UL)
 160
 161 /* Bank x Timing Register A */
 162 #define APECS_MEM_B0TRA                 (IDENT_ADDR + 0x180000C00UL)
 163 #define APECS_MEM_B1TRA                 (IDENT_ADDR + 0x180000C20UL)
 164 #define APECS_MEM_B2TRA                 (IDENT_ADDR + 0x180000C40UL)
 165 #define APECS_MEM_B3TRA                 (IDENT_ADDR + 0x180000C60UL)
 166 #define APECS_MEM_B4TRA                 (IDENT_ADDR + 0x180000C80UL)
 167 #define APECS_MEM_B5TRA                 (IDENT_ADDR + 0x180000CA0UL)
 168 #define APECS_MEM_B6TRA                 (IDENT_ADDR + 0x180000CC0UL)
 169 #define APECS_MEM_B7TRA                 (IDENT_ADDR + 0x180000CE0UL)
 170 #define APECS_MEM_B8TRA                 (IDENT_ADDR + 0x180000D00UL)
 171
 172 /* Bank x Timing Register B */
 173 #define APECS_MEM_B0TRB                 (IDENT_ADDR + 0x180000E00UL)
 174 #define APECS_MEM_B1TRB                 (IDENT_ADDR + 0x180000E20UL)
 175 #define APECS_MEM_B2TRB                 (IDENT_ADDR + 0x180000E40UL)
 176 #define APECS_MEM_B3TRB                 (IDENT_ADDR + 0x180000E60UL)
 177 #define APECS_MEM_B4TRB                 (IDENT_ADDR + 0x180000E80UL)
 178 #define APECS_MEM_B5TRB                 (IDENT_ADDR + 0x180000EA0UL)
 179 #define APECS_MEM_B6TRB                 (IDENT_ADDR + 0x180000EC0UL)
 180 #define APECS_MEM_B7TRB                 (IDENT_ADDR + 0x180000EE0UL)
 181 #define APECS_MEM_B8TRB                 (IDENT_ADDR + 0x180000F00UL)
 182
 183
 184 /*
 185  * Memory spaces:
 186  */
 187 #define APECS_IACK_SC                   (IDENT_ADDR + 0x1b0000000UL)
 188 #define APECS_CONF                      (IDENT_ADDR + 0x1e0000000UL)
 189 #define APECS_IO                        (IDENT_ADDR + 0x1c0000000UL)
 190 #define APECS_SPARSE_MEM                (IDENT_ADDR + 0x200000000UL)
 191 #define APECS_DENSE_MEM                 (IDENT_ADDR + 0x300000000UL)
 192
 193
 194 /*
 195  * Bit definitions for I/O Controller status register 0:
 196  */
 197 #define APECS_IOC_STAT0_CMD             0xf
 198 #define APECS_IOC_STAT0_ERR             (1<<4)
 199 #define APECS_IOC_STAT0_LOST            (1<<5)
 200 #define APECS_IOC_STAT0_THIT            (1<<6)
 201 #define APECS_IOC_STAT0_TREF            (1<<7)
 202 #define APECS_IOC_STAT0_CODE_SHIFT      8
 203 #define APECS_IOC_STAT0_CODE_MASK       0x7
 204 #define APECS_IOC_STAT0_P_NBR_SHIFT     13
 205 #define APECS_IOC_STAT0_P_NBR_MASK      0x7ffff
 206
 207 #define APECS_HAE_ADDRESS               APECS_IOC_HAXR1
 208
 209
 210 /*
 211  * Data structure for handling APECS machine checks:
 212  */
 213
 214 struct el_apecs_mikasa_sysdata_mcheck
 215 {
 216         unsigned long coma_gcr;
 217         unsigned long coma_edsr;
 218         unsigned long coma_ter;
 219         unsigned long coma_elar;
 220         unsigned long coma_ehar;
 221         unsigned long coma_ldlr;
 222         unsigned long coma_ldhr;
 223         unsigned long coma_base0;
 224         unsigned long coma_base1;
 225         unsigned long coma_base2;
 226         unsigned long coma_base3;
 227         unsigned long coma_cnfg0;
 228         unsigned long coma_cnfg1;
 229         unsigned long coma_cnfg2;
 230         unsigned long coma_cnfg3;
 231         unsigned long epic_dcsr;
 232         unsigned long epic_pear;
 233         unsigned long epic_sear;
 234         unsigned long epic_tbr1;
 235         unsigned long epic_tbr2;
 236         unsigned long epic_pbr1;
 237         unsigned long epic_pbr2;
 238         unsigned long epic_pmr1;
 239         unsigned long epic_pmr2;
 240         unsigned long epic_harx1;
 241         unsigned long epic_harx2;
 242         unsigned long epic_pmlt;
 243         unsigned long epic_tag0;
 244         unsigned long epic_tag1;
 245         unsigned long epic_tag2;
 246         unsigned long epic_tag3;
 247         unsigned long epic_tag4;
 248         unsigned long epic_tag5;
 249         unsigned long epic_tag6;
 250         unsigned long epic_tag7;
 251         unsigned long epic_data0;
 252         unsigned long epic_data1;
 253         unsigned long epic_data2;
 254         unsigned long epic_data3;
 255         unsigned long epic_data4;
 256         unsigned long epic_data5;
 257         unsigned long epic_data6;
 258         unsigned long epic_data7;
 259
 260         unsigned long pceb_vid;
 261         unsigned long pceb_did;
 262         unsigned long pceb_revision;
 263         unsigned long pceb_command;
 264         unsigned long pceb_status;
 265         unsigned long pceb_latency;
 266         unsigned long pceb_control;
 267         unsigned long pceb_arbcon;
 268         unsigned long pceb_arbpri;
 269
 270         unsigned long esc_id;
 271         unsigned long esc_revision;
 272         unsigned long esc_int0;
 273         unsigned long esc_int1;
 274         unsigned long esc_elcr0;
 275         unsigned long esc_elcr1;
 276         unsigned long esc_last_eisa;
 277         unsigned long esc_nmi_stat;
 278
 279         unsigned long pci_ir;
 280         unsigned long pci_imr;
 281         unsigned long svr_mgr;
 282 };
 283
 284 /* This for the normal APECS machines.  */
 285 struct el_apecs_sysdata_mcheck
 286 {
 287         unsigned long coma_gcr;
 288         unsigned long coma_edsr;
 289         unsigned long coma_ter;
 290         unsigned long coma_elar;
 291         unsigned long coma_ehar;
 292         unsigned long coma_ldlr;
 293         unsigned long coma_ldhr;
 294         unsigned long coma_base0;
 295         unsigned long coma_base1;
 296         unsigned long coma_base2;
 297         unsigned long coma_cnfg0;
 298         unsigned long coma_cnfg1;
 299         unsigned long coma_cnfg2;
 300         unsigned long epic_dcsr;
 301         unsigned long epic_pear;
 302         unsigned long epic_sear;
 303         unsigned long epic_tbr1;
 304         unsigned long epic_tbr2;
 305         unsigned long epic_pbr1;
 306         unsigned long epic_pbr2;
 307         unsigned long epic_pmr1;
 308         unsigned long epic_pmr2;
 309         unsigned long epic_harx1;
 310         unsigned long epic_harx2;
 311         unsigned long epic_pmlt;
 312         unsigned long epic_tag0;
 313         unsigned long epic_tag1;
 314         unsigned long epic_tag2;
 315         unsigned long epic_tag3;
 316         unsigned long epic_tag4;
 317         unsigned long epic_tag5;
 318         unsigned long epic_tag6;
 319         unsigned long epic_tag7;
 320         unsigned long epic_data0;
 321         unsigned long epic_data1;
 322         unsigned long epic_data2;
 323         unsigned long epic_data3;
 324         unsigned long epic_data4;
 325         unsigned long epic_data5;
 326         unsigned long epic_data6;
 327         unsigned long epic_data7;
 328 };
 329
 330 struct el_apecs_procdata
 331 {
 332         unsigned long paltemp[32];  /* PAL TEMP REGS. */
 333         /* EV4-specific fields */
 334         unsigned long exc_addr;     /* Address of excepting instruction. */
 335         unsigned long exc_sum;      /* Summary of arithmetic traps. */
 336         unsigned long exc_mask;     /* Exception mask (from exc_sum). */
 337         unsigned long iccsr;        /* IBox hardware enables. */
 338         unsigned long pal_base;     /* Base address for PALcode. */
 339         unsigned long hier;         /* Hardware Interrupt Enable. */
 340         unsigned long hirr;         /* Hardware Interrupt Request. */
 341         unsigned long csr;          /* D-stream fault info. */
 342         unsigned long dc_stat;      /* D-cache status (ECC/Parity Err). */
 343         unsigned long dc_addr;      /* EV3 Phys Addr for ECC/DPERR. */
 344         unsigned long abox_ctl;     /* ABox Control Register. */
 345         unsigned long biu_stat;     /* BIU Status. */
 346         unsigned long biu_addr;     /* BUI Address. */
 347         unsigned long biu_ctl;      /* BIU Control. */
 348         unsigned long fill_syndrome;/* For correcting ECC errors. */
 349         unsigned long fill_addr;    /* Cache block which was being read */
 350         unsigned long va;           /* Effective VA of fault or miss. */
 351         unsigned long bc_tag;       /* Backup Cache Tag Probe Results.*/
 352 };
 353
 354
 355 #ifdef __KERNEL__
 356
 357 #ifndef __EXTERN_INLINE
 358 #define __EXTERN_INLINE extern inline
 359 #define __IO_EXTERN_INLINE
 360 #endif
 361
 362 /*
 363  * I/O functions:
 364  *
 365  * Unlike Jensen, the APECS machines have no concept of local
 366  * I/O---everything goes over the PCI bus.
 367  *
 368  * There is plenty room for optimization here.  In particular,
 369  * the Alpha's insb/insw/extb/extw should be useful in moving
 370  * data to/from the right byte-lanes.
 371  */
 372
 373 #define vip     volatile int __force *
 374 #define vuip    volatile unsigned int __force *
 375 #define vulp    volatile unsigned long __force *
 376
 377 #define APECS_SET_HAE                                           \
 378         do {                                                    \
 379                 if (addr >= (1UL << 24)) {                      \
 380                         unsigned long msb = addr & 0xf8000000;  \
 381                         addr -= msb;                            \
 382                         set_hae(msb);                           \
 383                 }                                               \
 384         } while (0)
 385
 386 __EXTERN_INLINE unsigned int apecs_ioread8(void __iomem *xaddr)
 387 {
 388         unsigned long addr = (unsigned long) xaddr;
 389         unsigned long result, base_and_type;
 390
 391         if (addr >= APECS_DENSE_MEM) {
 392                 addr -= APECS_DENSE_MEM;
 393                 APECS_SET_HAE;
 394                 base_and_type = APECS_SPARSE_MEM + 0x00;
 395         } else {
 396                 addr -= APECS_IO;
 397                 base_and_type = APECS_IO + 0x00;
 398         }
 399
 400         result = *(vip) ((addr << 5) + base_and_type);
 401         return __kernel_extbl(result, addr & 3);
 402 }
 403
 404 __EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
 405 {
 406         unsigned long addr = (unsigned long) xaddr;
 407         unsigned long w, base_and_type;
 408
 409         if (addr >= APECS_DENSE_MEM) {
 410                 addr -= APECS_DENSE_MEM;
 411                 APECS_SET_HAE;
 412                 base_and_type = APECS_SPARSE_MEM + 0x00;
 413         } else {
 414                 addr -= APECS_IO;
 415                 base_and_type = APECS_IO + 0x00;
 416         }
 417
 418         w = __kernel_insbl(b, addr & 3);
 419         *(vuip) ((addr << 5) + base_and_type) = w;
 420 }
 421
 422 __EXTERN_INLINE unsigned int apecs_ioread16(void __iomem *xaddr)
 423 {
 424         unsigned long addr = (unsigned long) xaddr;
 425         unsigned long result, base_and_type;
 426
 427         if (addr >= APECS_DENSE_MEM) {
 428                 addr -= APECS_DENSE_MEM;
 429                 APECS_SET_HAE;
 430                 base_and_type = APECS_SPARSE_MEM + 0x08;
 431         } else {
 432                 addr -= APECS_IO;
 433                 base_and_type = APECS_IO + 0x08;
 434         }
 435
 436         result = *(vip) ((addr << 5) + base_and_type);
 437         return __kernel_extwl(result, addr & 3);
 438 }
 439
 440 __EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
 441 {
 442         unsigned long addr = (unsigned long) xaddr;
 443         unsigned long w, base_and_type;
 444
 445         if (addr >= APECS_DENSE_MEM) {
 446                 addr -= APECS_DENSE_MEM;
 447                 APECS_SET_HAE;
 448                 base_and_type = APECS_SPARSE_MEM + 0x08;
 449         } else {
 450                 addr -= APECS_IO;
 451                 base_and_type = APECS_IO + 0x08;
 452         }
 453
 454         w = __kernel_inswl(b, addr & 3);
 455         *(vuip) ((addr << 5) + base_and_type) = w;
 456 }
 457
 458 __EXTERN_INLINE unsigned int apecs_ioread32(void __iomem *xaddr)
 459 {
 460         unsigned long addr = (unsigned long) xaddr;
 461         if (addr < APECS_DENSE_MEM)
 462                 addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
 463         return *(vuip)addr;
 464 }
 465
 466 __EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr)
 467 {
 468         unsigned long addr = (unsigned long) xaddr;
 469         if (addr < APECS_DENSE_MEM)
 470                 addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
 471         *(vuip)addr = b;
 472 }
 473
 474 __EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr)
 475 {
 476         return (void __iomem *)(addr + APECS_IO);
 477 }
 478
 479 __EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr,
 480                                             unsigned long size)
 481 {
 482         return (void __iomem *)(addr + APECS_DENSE_MEM);
 483 }
 484
 485 __EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr)
 486 {
 487         return addr >= IDENT_ADDR + 0x180000000UL;
 488 }
 489
 490 __EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr)
 491 {
 492         return (unsigned long)addr >= APECS_DENSE_MEM;
 493 }
 494
 495 #undef APECS_SET_HAE
 496
 497 #undef vip
 498 #undef vuip
 499 #undef vulp
 500
 501 #undef __IO_PREFIX
 502 #define __IO_PREFIX             apecs
 503 #define apecs_trivial_io_bw     0
 504 #define apecs_trivial_io_lq     0
 505 #define apecs_trivial_rw_bw     2
 506 #define apecs_trivial_rw_lq     1
 507 #define apecs_trivial_iounmap   1
 508 #include <asm/io_trivial.h>
 509
 510 #ifdef __IO_EXTERN_INLINE
 511 #undef __EXTERN_INLINE
 512 #undef __IO_EXTERN_INLINE
 513 #endif
 514
 515 #endif /* __KERNEL__ */
 516
 517 #endif /* __ALPHA_APECS__H__ */