LXR linux/arch/alpha/kernel/sys

   1/*
   2 *      linux/arch/alpha/kernel/sys_dp264.c
   3 *
   4 *      Copyright (C) 1995 David A Rusling
   5 *      Copyright (C) 1996, 1999 Jay A Estabrook
   6 *      Copyright (C) 1998, 1999 Richard Henderson
   7 *
   8 *      Modified by Christopher C. Chimelis, 2001 to
   9 *      add support for the addition of Shark to the
  10 *      Tsunami family.
  11 *
  12 * Code supporting the DP264 (EV6+TSUNAMI).
  13 */
  14
  15#include <linux/kernel.h>
  16#include <linux/types.h>
  17#include <linux/mm.h>
  18#include <linux/sched.h>
  19#include <linux/pci.h>
  20#include <linux/init.h>
  21#include <linux/bitops.h>
  22
  23#include <asm/ptrace.h>
  24#include <asm/dma.h>
  25#include <asm/irq.h>
  26#include <asm/mmu_context.h>
  27#include <asm/io.h>
  28#include <asm/pgtable.h>
  29#include <asm/core_tsunami.h>
  30#include <asm/hwrpb.h>
  31#include <asm/tlbflush.h>
  32
  33#include "proto.h"
  34#include "irq_impl.h"
  35#include "pci_impl.h"
  36#include "machvec_impl.h"
  37
  38
  39/* Note mask bit is true for ENABLED irqs.  */
  40static unsigned long cached_irq_mask;
  41/* dp264 boards handle at max four CPUs */
  42static unsigned long cpu_irq_affinity[4] = { 0UL, 0UL, 0UL, 0UL };
  43
  44DEFINE_SPINLOCK(dp264_irq_lock);
  45
  46static void
  47tsunami_update_irq_hw(unsigned long mask)
  48{
  49        register tsunami_cchip *cchip = TSUNAMI_cchip;
  50        unsigned long isa_enable = 1UL << 55;
  51        register int bcpu = boot_cpuid;
  52
  53#ifdef CONFIG_SMP
  54        volatile unsigned long *dim0, *dim1, *dim2, *dim3;
  55        unsigned long mask0, mask1, mask2, mask3, dummy;
  56
  57        mask &= ~isa_enable;
  58        mask0 = mask & cpu_irq_affinity[0];
  59        mask1 = mask & cpu_irq_affinity[1];
  60        mask2 = mask & cpu_irq_affinity[2];
  61        mask3 = mask & cpu_irq_affinity[3];
  62
  63        if (bcpu == 0) mask0 |= isa_enable;
  64        else if (bcpu == 1) mask1 |= isa_enable;
  65        else if (bcpu == 2) mask2 |= isa_enable;
  66        else mask3 |= isa_enable;
  67
  68        dim0 = &cchip->dim0.csr;
  69        dim1 = &cchip->dim1.csr;
  70        dim2 = &cchip->dim2.csr;
  71        dim3 = &cchip->dim3.csr;
  72        if (!cpu_possible(0)) dim0 = &dummy;
  73        if (!cpu_possible(1)) dim1 = &dummy;
  74        if (!cpu_possible(2)) dim2 = &dummy;
  75        if (!cpu_possible(3)) dim3 = &dummy;
  76
  77        *dim0 = mask0;
  78        *dim1 = mask1;
  79        *dim2 = mask2;
  80        *dim3 = mask3;
  81        mb();
  82        *dim0;
  83        *dim1;
  84        *dim2;
  85        *dim3;
  86#else
  87        volatile unsigned long *dimB;
  88        if (bcpu == 0) dimB = &cchip->dim0.csr;
  89        else if (bcpu == 1) dimB = &cchip->dim1.csr;
  90        else if (bcpu == 2) dimB = &cchip->dim2.csr;
  91        else dimB = &cchip->dim3.csr;
  92
  93        *dimB = mask | isa_enable;
  94        mb();
  95        *dimB;
  96#endif
  97}
  98
  99static void
 100dp264_enable_irq(struct irq_data *d)
 101{
 102        spin_lock(&dp264_irq_lock);
 103        cached_irq_mask |= 1UL << d->irq;
 104        tsunami_update_irq_hw(cached_irq_mask);
 105        spin_unlock(&dp264_irq_lock);
 106}
 107
 108static void
 109dp264_disable_irq(struct irq_data *d)
 110{
 111        spin_lock(&dp264_irq_lock);
 112        cached_irq_mask &= ~(1UL << d->irq);
 113        tsunami_update_irq_hw(cached_irq_mask);
 114        spin_unlock(&dp264_irq_lock);
 115}
 116
 117static void
 118clipper_enable_irq(struct irq_data *d)
 119{
 120        spin_lock(&dp264_irq_lock);
 121        cached_irq_mask |= 1UL << (d->irq - 16);
 122        tsunami_update_irq_hw(cached_irq_mask);
 123        spin_unlock(&dp264_irq_lock);
 124}
 125
 126static void
 127clipper_disable_irq(struct irq_data *d)
 128{
 129        spin_lock(&dp264_irq_lock);
 130        cached_irq_mask &= ~(1UL << (d->irq - 16));
 131        tsunami_update_irq_hw(cached_irq_mask);
 132        spin_unlock(&dp264_irq_lock);
 133}
 134
 135static void
 136cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
 137{
 138        int cpu;
 139
 140        for (cpu = 0; cpu < 4; cpu++) {
 141                unsigned long aff = cpu_irq_affinity[cpu];
 142                if (cpumask_test_cpu(cpu, &affinity))
 143                        aff |= 1UL << irq;
 144                else
 145                        aff &= ~(1UL << irq);
 146                cpu_irq_affinity[cpu] = aff;
 147        }
 148}
 149
 150static int
 151dp264_set_affinity(struct irq_data *d, const struct cpumask *affinity,
 152                   bool force)
 153{
 154        spin_lock(&dp264_irq_lock);
 155        cpu_set_irq_affinity(d->irq, *affinity);
 156        tsunami_update_irq_hw(cached_irq_mask);
 157        spin_unlock(&dp264_irq_lock);
 158
 159        return 0;
 160}
 161
 162static int
 163clipper_set_affinity(struct irq_data *d, const struct cpumask *affinity,
 164                     bool force)
 165{
 166        spin_lock(&dp264_irq_lock);
 167        cpu_set_irq_affinity(d->irq - 16, *affinity);
 168        tsunami_update_irq_hw(cached_irq_mask);
 169        spin_unlock(&dp264_irq_lock);
 170
 171        return 0;
 172}
 173
 174static struct irq_chip dp264_irq_type = {
 175        .name                   = "DP264",
 176        .irq_unmask             = dp264_enable_irq,
 177        .irq_mask               = dp264_disable_irq,
 178        .irq_mask_ack           = dp264_disable_irq,
 179        .irq_set_affinity       = dp264_set_affinity,
 180};
 181
 182static struct irq_chip clipper_irq_type = {
 183        .name                   = "CLIPPER",
 184        .irq_unmask             = clipper_enable_irq,
 185        .irq_mask               = clipper_disable_irq,
 186        .irq_mask_ack           = clipper_disable_irq,
 187        .irq_set_affinity       = clipper_set_affinity,
 188};
 189
 190static void
 191dp264_device_interrupt(unsigned long vector)
 192{
 193        unsigned long pld;
 194        unsigned int i;
 195
 196        /* Read the interrupt summary register of TSUNAMI */
 197        pld = TSUNAMI_cchip->dir0.csr;
 198
 199        /*
 200         * Now for every possible bit set, work through them and call
 201         * the appropriate interrupt handler.
 202         */
 203        while (pld) {
 204                i = ffz(~pld);
 205                pld &= pld - 1; /* clear least bit set */
 206                if (i == 55)
 207                        isa_device_interrupt(vector);
 208                else
 209                        handle_irq(16 + i);
 210        }
 211}
 212
 213static void 
 214dp264_srm_device_interrupt(unsigned long vector)
 215{
 216        int irq;
 217
 218        irq = (vector - 0x800) >> 4;
 219
 220        /*
 221         * The SRM console reports PCI interrupts with a vector calculated by:
 222         *
 223         *      0x900 + (0x10 * DRIR-bit)
 224         *
 225         * So bit 16 shows up as IRQ 32, etc.
 226         * 
 227         * On DP264/BRICK/MONET, we adjust it down by 16 because at least
 228         * that many of the low order bits of the DRIR are not used, and
 229         * so we don't count them.
 230         */
 231        if (irq >= 32)
 232                irq -= 16;
 233
 234        handle_irq(irq);
 235}
 236
 237static void 
 238clipper_srm_device_interrupt(unsigned long vector)
 239{
 240        int irq;
 241
 242        irq = (vector - 0x800) >> 4;
 243
 244/*
 245         * The SRM console reports PCI interrupts with a vector calculated by:
 246         *
 247         *      0x900 + (0x10 * DRIR-bit)
 248         *
 249         * So bit 16 shows up as IRQ 32, etc.
 250         * 
 251         * CLIPPER uses bits 8-47 for PCI interrupts, so we do not need
 252         * to scale down the vector reported, we just use it.
 253         *
 254         * Eg IRQ 24 is DRIR bit 8, etc, etc
 255         */
 256        handle_irq(irq);
 257}
 258
 259static void __init
 260init_tsunami_irqs(struct irq_chip * ops, int imin, int imax)
 261{
 262        long i;
 263        for (i = imin; i <= imax; ++i) {
 264                irq_set_chip_and_handler(i, ops, handle_level_irq);
 265                irq_set_status_flags(i, IRQ_LEVEL);
 266        }
 267}
 268
 269static void __init
 270dp264_init_irq(void)
 271{
 272        outb(0, DMA1_RESET_REG);
 273        outb(0, DMA2_RESET_REG);
 274        outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
 275        outb(0, DMA2_MASK_REG);
 276
 277        if (alpha_using_srm)
 278                alpha_mv.device_interrupt = dp264_srm_device_interrupt;
 279
 280        tsunami_update_irq_hw(0);
 281
 282        init_i8259a_irqs();
 283        init_tsunami_irqs(&dp264_irq_type, 16, 47);
 284}
 285
 286static void __init
 287clipper_init_irq(void)
 288{
 289        outb(0, DMA1_RESET_REG);
 290        outb(0, DMA2_RESET_REG);
 291        outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
 292        outb(0, DMA2_MASK_REG);
 293
 294        if (alpha_using_srm)
 295                alpha_mv.device_interrupt = clipper_srm_device_interrupt;
 296
 297        tsunami_update_irq_hw(0);
 298
 299        init_i8259a_irqs();
 300        init_tsunami_irqs(&clipper_irq_type, 24, 63);
 301}
 302
 303
 304/*
 305 * PCI Fixup configuration.
 306 *
 307 * Summary @ TSUNAMI_CSR_DIM0:
 308 * Bit      Meaning
 309 * 0-17     Unused
 310 *18        Interrupt SCSI B (Adaptec 7895 builtin)
 311 *19        Interrupt SCSI A (Adaptec 7895 builtin)
 312 *20        Interrupt Line D from slot 2 PCI0
 313 *21        Interrupt Line C from slot 2 PCI0
 314 *22        Interrupt Line B from slot 2 PCI0
 315 *23        Interrupt Line A from slot 2 PCI0
 316 *24        Interrupt Line D from slot 1 PCI0
 317 *25        Interrupt Line C from slot 1 PCI0
 318 *26        Interrupt Line B from slot 1 PCI0
 319 *27        Interrupt Line A from slot 1 PCI0
 320 *28        Interrupt Line D from slot 0 PCI0
 321 *29        Interrupt Line C from slot 0 PCI0
 322 *30        Interrupt Line B from slot 0 PCI0
 323 *31        Interrupt Line A from slot 0 PCI0
 324 *
 325 *32        Interrupt Line D from slot 3 PCI1
 326 *33        Interrupt Line C from slot 3 PCI1
 327 *34        Interrupt Line B from slot 3 PCI1
 328 *35        Interrupt Line A from slot 3 PCI1
 329 *36        Interrupt Line D from slot 2 PCI1
 330 *37        Interrupt Line C from slot 2 PCI1
 331 *38        Interrupt Line B from slot 2 PCI1
 332 *39        Interrupt Line A from slot 2 PCI1
 333 *40        Interrupt Line D from slot 1 PCI1
 334 *41        Interrupt Line C from slot 1 PCI1
 335 *42        Interrupt Line B from slot 1 PCI1
 336 *43        Interrupt Line A from slot 1 PCI1
 337 *44        Interrupt Line D from slot 0 PCI1
 338 *45        Interrupt Line C from slot 0 PCI1
 339 *46        Interrupt Line B from slot 0 PCI1
 340 *47        Interrupt Line A from slot 0 PCI1
 341 *48-52     Unused
 342 *53        PCI0 NMI (from Cypress)
 343 *54        PCI0 SMI INT (from Cypress)
 344 *55        PCI0 ISA Interrupt (from Cypress)
 345 *56-60     Unused
 346 *61        PCI1 Bus Error
 347 *62        PCI0 Bus Error
 348 *63        Reserved
 349 *
 350 * IdSel        
 351 *   5   Cypress Bridge I/O
 352 *   6   SCSI Adaptec builtin
 353 *   7   64 bit PCI option slot 0 (all busses)
 354 *   8   64 bit PCI option slot 1 (all busses)
 355 *   9   64 bit PCI option slot 2 (all busses)
 356 *  10   64 bit PCI option slot 3 (not bus 0)
 357 */
 358
 359static int __init
 360isa_irq_fixup(const struct pci_dev *dev, int irq)
 361{
 362        u8 irq8;
 363
 364        if (irq > 0)
 365                return irq;
 366
 367        /* This interrupt is routed via ISA bridge, so we'll
 368           just have to trust whatever value the console might
 369           have assigned.  */
 370        pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq8);
 371
 372        return irq8 & 0xf;
 373}
 374
 375static int __init
 376dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 377{
 378        static char irq_tab[6][5] __initdata = {
 379                /*INT    INTA   INTB   INTC   INTD */
 380                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 ISA Bridge */
 381                { 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/
 382                { 16+15, 16+15, 16+14, 16+13, 16+12}, /* IdSel 7 slot 0 */
 383                { 16+11, 16+11, 16+10, 16+ 9, 16+ 8}, /* IdSel 8 slot 1 */
 384                { 16+ 7, 16+ 7, 16+ 6, 16+ 5, 16+ 4}, /* IdSel 9 slot 2 */
 385                { 16+ 3, 16+ 3, 16+ 2, 16+ 1, 16+ 0}  /* IdSel 10 slot 3 */
 386        };
 387        const long min_idsel = 5, max_idsel = 10, irqs_per_slot = 5;
 388        struct pci_controller *hose = dev->sysdata;
 389        int irq = COMMON_TABLE_LOOKUP;
 390
 391        if (irq > 0)
 392                irq += 16 * hose->index;
 393
 394        return isa_irq_fixup(dev, irq);
 395}
 396
 397static int __init
 398monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 399{
 400        static char irq_tab[13][5] __initdata = {
 401                /*INT    INTA   INTB   INTC   INTD */
 402                {    45,    45,    45,    45,    45}, /* IdSel 3 21143 PCI1 */
 403                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 4 unused */
 404                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 unused */
 405                {    47,    47,    47,    47,    47}, /* IdSel 6 SCSI PCI1 */
 406                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
 407                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 P2P PCI1 */
 408#if 1
 409                {    28,    28,    29,    30,    31}, /* IdSel 14 slot 4 PCI2*/
 410                {    24,    24,    25,    26,    27}, /* IdSel 15 slot 5 PCI2*/
 411#else
 412                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 9 unused */
 413                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */
 414#endif
 415                {    40,    40,    41,    42,    43}, /* IdSel 11 slot 1 PCI0*/
 416                {    36,    36,    37,    38,    39}, /* IdSel 12 slot 2 PCI0*/
 417                {    32,    32,    33,    34,    35}, /* IdSel 13 slot 3 PCI0*/
 418                {    28,    28,    29,    30,    31}, /* IdSel 14 slot 4 PCI2*/
 419                {    24,    24,    25,    26,    27}  /* IdSel 15 slot 5 PCI2*/
 420        };
 421        const long min_idsel = 3, max_idsel = 15, irqs_per_slot = 5;
 422
 423        return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
 424}
 425
 426static u8 __init
 427monet_swizzle(struct pci_dev *dev, u8 *pinp)
 428{
 429        struct pci_controller *hose = dev->sysdata;
 430        int slot, pin = *pinp;
 431
 432        if (!dev->bus->parent) {
 433                slot = PCI_SLOT(dev->devfn);
 434        }
 435        /* Check for the built-in bridge on hose 1. */
 436        else if (hose->index == 1 && PCI_SLOT(dev->bus->self->devfn) == 8) {
 437                slot = PCI_SLOT(dev->devfn);
 438        } else {
 439                /* Must be a card-based bridge.  */
 440                do {
 441                        /* Check for built-in bridge on hose 1. */
 442                        if (hose->index == 1 &&
 443                            PCI_SLOT(dev->bus->self->devfn) == 8) {
 444                                slot = PCI_SLOT(dev->devfn);
 445                                break;
 446                        }
 447                        pin = pci_swizzle_interrupt_pin(dev, pin);
 448
 449                        /* Move up the chain of bridges.  */
 450                        dev = dev->bus->self;
 451                        /* Slot of the next bridge.  */
 452                        slot = PCI_SLOT(dev->devfn);
 453                } while (dev->bus->self);
 454        }
 455        *pinp = pin;
 456        return slot;
 457}
 458
 459static int __init
 460webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 461{
 462        static char irq_tab[13][5] __initdata = {
 463                /*INT    INTA   INTB   INTC   INTD */
 464                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
 465                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 unused */
 466                {    29,    29,    29,    29,    29}, /* IdSel 9 21143 #1 */
 467                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */
 468                {    30,    30,    30,    30,    30}, /* IdSel 11 21143 #2 */
 469                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 12 unused */
 470                {    -1,    -1,    -1,    -1,    -1}, /* IdSel 13 unused */
 471                {    35,    35,    34,    33,    32}, /* IdSel 14 slot 0 */
 472                {    39,    39,    38,    37,    36}, /* IdSel 15 slot 1 */
 473                {    43,    43,    42,    41,    40}, /* IdSel 16 slot 2 */
 474                {    47,    47,    46,    45,    44}, /* IdSel 17 slot 3 */
 475        };
 476        const long min_idsel = 7, max_idsel = 17, irqs_per_slot = 5;
 477
 478        return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
 479}
 480
 481static int __init
 482clipper_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 483{
 484        static char irq_tab[7][5] __initdata = {
 485                /*INT    INTA   INTB   INTC   INTD */
 486                { 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */
 487                { 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */
 488                { 16+16, 16+16, 16+17, 16+18, 16+19}, /* IdSel 3 slot 3 */
 489                { 16+20, 16+20, 16+21, 16+22, 16+23}, /* IdSel 4 slot 4 */
 490                { 16+24, 16+24, 16+25, 16+26, 16+27}, /* IdSel 5 slot 5 */
 491                { 16+28, 16+28, 16+29, 16+30, 16+31}, /* IdSel 6 slot 6 */
 492                {    -1,    -1,    -1,    -1,    -1}  /* IdSel 7 ISA Bridge */
 493        };
 494        const long min_idsel = 1, max_idsel = 7, irqs_per_slot = 5;
 495        struct pci_controller *hose = dev->sysdata;
 496        int irq = COMMON_TABLE_LOOKUP;
 497
 498        if (irq > 0)
 499                irq += 16 * hose->index;
 500
 501        return isa_irq_fixup(dev, irq);
 502}
 503
 504static void __init
 505dp264_init_pci(void)
 506{
 507        common_init_pci();
 508        SMC669_Init(0);
 509        locate_and_init_vga(NULL);
 510}
 511
 512static void __init
 513monet_init_pci(void)
 514{
 515        common_init_pci();
 516        SMC669_Init(1);
 517        es1888_init();
 518        locate_and_init_vga(NULL);
 519}
 520
 521static void __init
 522clipper_init_pci(void)
 523{
 524        common_init_pci();
 525        locate_and_init_vga(NULL);
 526}
 527
 528static void __init
 529webbrick_init_arch(void)
 530{
 531        tsunami_init_arch();
 532
 533        /* Tsunami caches 4 PTEs at a time; DS10 has only 1 hose. */
 534        hose_head->sg_isa->align_entry = 4;
 535        hose_head->sg_pci->align_entry = 4;
 536}
 537
 538
 539/*
 540 * The System Vectors
 541 */
 542
 543struct alpha_machine_vector dp264_mv __initmv = {
 544        .vector_name            = "DP264",
 545        DO_EV6_MMU,
 546        DO_DEFAULT_RTC,
 547        DO_TSUNAMI_IO,
 548        .machine_check          = tsunami_machine_check,
 549        .max_isa_dma_address    = ALPHA_MAX_ISA_DMA_ADDRESS,
 550        .min_io_address         = DEFAULT_IO_BASE,
 551        .min_mem_address        = DEFAULT_MEM_BASE,
 552        .pci_dac_offset         = TSUNAMI_DAC_OFFSET,
 553
 554        .nr_irqs                = 64,
 555        .device_interrupt       = dp264_device_interrupt,
 556
 557        .init_arch              = tsunami_init_arch,
 558        .init_irq               = dp264_init_irq,
 559        .init_rtc               = common_init_rtc,
 560        .init_pci               = dp264_init_pci,
 561        .kill_arch              = tsunami_kill_arch,
 562        .pci_map_irq            = dp264_map_irq,
 563        .pci_swizzle            = common_swizzle,
 564};
 565ALIAS_MV(dp264)
 566
 567struct alpha_machine_vector monet_mv __initmv = {
 568        .vector_name            = "Monet",
 569        DO_EV6_MMU,
 570        DO_DEFAULT_RTC,
 571        DO_TSUNAMI_IO,
 572        .machine_check          = tsunami_machine_check,
 573        .max_isa_dma_address    = ALPHA_MAX_ISA_DMA_ADDRESS,
 574        .min_io_address         = DEFAULT_IO_BASE,
 575        .min_mem_address        = DEFAULT_MEM_BASE,
 576        .pci_dac_offset         = TSUNAMI_DAC_OFFSET,
 577
 578        .nr_irqs                = 64,
 579        .device_interrupt       = dp264_device_interrupt,
 580
 581        .init_arch              = tsunami_init_arch,
 582        .init_irq               = dp264_init_irq,
 583        .init_rtc               = common_init_rtc,
 584        .init_pci               = monet_init_pci,
 585        .kill_arch              = tsunami_kill_arch,
 586        .pci_map_irq            = monet_map_irq,
 587        .pci_swizzle            = monet_swizzle,
 588};
 589
 590struct alpha_machine_vector webbrick_mv __initmv = {
 591        .vector_name            = "Webbrick",
 592        DO_EV6_MMU,
 593        DO_DEFAULT_RTC,
 594        DO_TSUNAMI_IO,
 595        .machine_check          = tsunami_machine_check,
 596        .max_isa_dma_address    = ALPHA_MAX_ISA_DMA_ADDRESS,
 597        .min_io_address         = DEFAULT_IO_BASE,
 598        .min_mem_address        = DEFAULT_MEM_BASE,
 599        .pci_dac_offset         = TSUNAMI_DAC_OFFSET,
 600
 601        .nr_irqs                = 64,
 602        .device_interrupt       = dp264_device_interrupt,
 603
 604        .init_arch              = webbrick_init_arch,
 605        .init_irq               = dp264_init_irq,
 606        .init_rtc               = common_init_rtc,
 607        .init_pci               = common_init_pci,
 608        .kill_arch              = tsunami_kill_arch,
 609        .pci_map_irq            = webbrick_map_irq,
 610        .pci_swizzle            = common_swizzle,
 611};
 612
 613struct alpha_machine_vector clipper_mv __initmv = {
 614        .vector_name            = "Clipper",
 615        DO_EV6_MMU,
 616        DO_DEFAULT_RTC,
 617        DO_TSUNAMI_IO,
 618        .machine_check          = tsunami_machine_check,
 619        .max_isa_dma_address    = ALPHA_MAX_ISA_DMA_ADDRESS,
 620        .min_io_address         = DEFAULT_IO_BASE,
 621        .min_mem_address        = DEFAULT_MEM_BASE,
 622        .pci_dac_offset         = TSUNAMI_DAC_OFFSET,
 623
 624        .nr_irqs                = 64,
 625        .device_interrupt       = dp264_device_interrupt,
 626
 627        .init_arch              = tsunami_init_arch,
 628        .init_irq               = clipper_init_irq,
 629        .init_rtc               = common_init_rtc,
 630        .init_pci               = clipper_init_pci,
 631        .kill_arch              = tsunami_kill_arch,
 632        .pci_map_irq            = clipper_map_irq,
 633        .pci_swizzle            = common_swizzle,
 634};
 635
 636/* Sharks strongly resemble Clipper, at least as far
 637 * as interrupt routing, etc, so we're using the
 638 * same functions as Clipper does
 639 */
 640
 641struct alpha_machine_vector shark_mv __initmv = {
 642        .vector_name            = "Shark",
 643        DO_EV6_MMU,
 644        DO_DEFAULT_RTC,
 645        DO_TSUNAMI_IO,
 646        .machine_check          = tsunami_machine_check,
 647        .max_isa_dma_address    = ALPHA_MAX_ISA_DMA_ADDRESS,
 648        .min_io_address         = DEFAULT_IO_BASE,
 649        .min_mem_address        = DEFAULT_MEM_BASE,
 650        .pci_dac_offset         = TSUNAMI_DAC_OFFSET,
 651
 652        .nr_irqs                = 64,
 653        .device_interrupt       = dp264_device_interrupt,
 654
 655        .init_arch              = tsunami_init_arch,
 656        .init_irq               = clipper_init_irq,
 657        .init_rtc               = common_init_rtc,
 658        .init_pci               = common_init_pci,
 659        .kill_arch              = tsunami_kill_arch,
 660        .pci_map_irq            = clipper_map_irq,
 661        .pci_swizzle            = common_swizzle,
 662};
 663
 664/* No alpha_mv alias for webbrick/monet/clipper, since we compile them
 665   in unconditionally with DP264; setup_arch knows how to cope.  */
 666