linux/include/asm-ia64/machvec.h
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   1/*
   2 * Machine vector for IA-64.
   3 *
   4 * Copyright (C) 1999 Silicon Graphics, Inc.
   5 * Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
   6 * Copyright (C) Vijay Chander <vijay@engr.sgi.com>
   7 * Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
   8 *      David Mosberger-Tang <davidm@hpl.hp.com>
   9 */
  10#ifndef _ASM_IA64_MACHVEC_H
  11#define _ASM_IA64_MACHVEC_H
  12
  13#include <linux/types.h>
  14
  15/* forward declarations: */
  16struct device;
  17struct pt_regs;
  18struct scatterlist;
  19struct page;
  20struct mm_struct;
  21struct pci_bus;
  22struct task_struct;
  23struct pci_dev;
  24struct msi_desc;
  25
  26typedef void ia64_mv_setup_t (char **);
  27typedef void ia64_mv_cpu_init_t (void);
  28typedef void ia64_mv_irq_init_t (void);
  29typedef void ia64_mv_send_ipi_t (int, int, int, int);
  30typedef void ia64_mv_timer_interrupt_t (int, void *);
  31typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
  32typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
  33typedef u8 ia64_mv_irq_to_vector (int);
  34typedef unsigned int ia64_mv_local_vector_to_irq (u8);
  35typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
  36typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
  37                                       u8 size);
  38typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
  39                                        u8 size);
  40typedef void ia64_mv_migrate_t(struct task_struct * task);
  41typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
  42typedef void ia64_mv_kernel_launch_event_t(void);
  43
  44/* DMA-mapping interface: */
  45typedef void ia64_mv_dma_init (void);
  46typedef void *ia64_mv_dma_alloc_coherent (struct device *, size_t, dma_addr_t *, gfp_t);
  47typedef void ia64_mv_dma_free_coherent (struct device *, size_t, void *, dma_addr_t);
  48typedef dma_addr_t ia64_mv_dma_map_single (struct device *, void *, size_t, int);
  49typedef void ia64_mv_dma_unmap_single (struct device *, dma_addr_t, size_t, int);
  50typedef int ia64_mv_dma_map_sg (struct device *, struct scatterlist *, int, int);
  51typedef void ia64_mv_dma_unmap_sg (struct device *, struct scatterlist *, int, int);
  52typedef void ia64_mv_dma_sync_single_for_cpu (struct device *, dma_addr_t, size_t, int);
  53typedef void ia64_mv_dma_sync_sg_for_cpu (struct device *, struct scatterlist *, int, int);
  54typedef void ia64_mv_dma_sync_single_for_device (struct device *, dma_addr_t, size_t, int);
  55typedef void ia64_mv_dma_sync_sg_for_device (struct device *, struct scatterlist *, int, int);
  56typedef int ia64_mv_dma_mapping_error (dma_addr_t dma_addr);
  57typedef int ia64_mv_dma_supported (struct device *, u64);
  58
  59/*
  60 * WARNING: The legacy I/O space is _architected_.  Platforms are
  61 * expected to follow this architected model (see Section 10.7 in the
  62 * IA-64 Architecture Software Developer's Manual).  Unfortunately,
  63 * some broken machines do not follow that model, which is why we have
  64 * to make the inX/outX operations part of the machine vector.
  65 * Platform designers should follow the architected model whenever
  66 * possible.
  67 */
  68typedef unsigned int ia64_mv_inb_t (unsigned long);
  69typedef unsigned int ia64_mv_inw_t (unsigned long);
  70typedef unsigned int ia64_mv_inl_t (unsigned long);
  71typedef void ia64_mv_outb_t (unsigned char, unsigned long);
  72typedef void ia64_mv_outw_t (unsigned short, unsigned long);
  73typedef void ia64_mv_outl_t (unsigned int, unsigned long);
  74typedef void ia64_mv_mmiowb_t (void);
  75typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
  76typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
  77typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
  78typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
  79typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
  80typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
  81typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
  82typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
  83
  84typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
  85typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
  86
  87static inline void
  88machvec_noop (void)
  89{
  90}
  91
  92static inline void
  93machvec_noop_mm (struct mm_struct *mm)
  94{
  95}
  96
  97static inline void
  98machvec_noop_task (struct task_struct *task)
  99{
 100}
 101
 102static inline void
 103machvec_noop_bus (struct pci_bus *bus)
 104{
 105}
 106
 107extern void machvec_setup (char **);
 108extern void machvec_timer_interrupt (int, void *);
 109extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
 110extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
 111extern void machvec_tlb_migrate_finish (struct mm_struct *);
 112
 113# if defined (CONFIG_IA64_HP_SIM)
 114#  include <asm/machvec_hpsim.h>
 115# elif defined (CONFIG_IA64_DIG)
 116#  include <asm/machvec_dig.h>
 117# elif defined (CONFIG_IA64_HP_ZX1)
 118#  include <asm/machvec_hpzx1.h>
 119# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
 120#  include <asm/machvec_hpzx1_swiotlb.h>
 121# elif defined (CONFIG_IA64_SGI_SN2)
 122#  include <asm/machvec_sn2.h>
 123# elif defined (CONFIG_IA64_GENERIC)
 124
 125# ifdef MACHVEC_PLATFORM_HEADER
 126#  include MACHVEC_PLATFORM_HEADER
 127# else
 128#  define platform_name         ia64_mv.name
 129#  define platform_setup        ia64_mv.setup
 130#  define platform_cpu_init     ia64_mv.cpu_init
 131#  define platform_irq_init     ia64_mv.irq_init
 132#  define platform_send_ipi     ia64_mv.send_ipi
 133#  define platform_timer_interrupt      ia64_mv.timer_interrupt
 134#  define platform_global_tlb_purge     ia64_mv.global_tlb_purge
 135#  define platform_tlb_migrate_finish   ia64_mv.tlb_migrate_finish
 136#  define platform_dma_init             ia64_mv.dma_init
 137#  define platform_dma_alloc_coherent   ia64_mv.dma_alloc_coherent
 138#  define platform_dma_free_coherent    ia64_mv.dma_free_coherent
 139#  define platform_dma_map_single       ia64_mv.dma_map_single
 140#  define platform_dma_unmap_single     ia64_mv.dma_unmap_single
 141#  define platform_dma_map_sg           ia64_mv.dma_map_sg
 142#  define platform_dma_unmap_sg         ia64_mv.dma_unmap_sg
 143#  define platform_dma_sync_single_for_cpu ia64_mv.dma_sync_single_for_cpu
 144#  define platform_dma_sync_sg_for_cpu  ia64_mv.dma_sync_sg_for_cpu
 145#  define platform_dma_sync_single_for_device ia64_mv.dma_sync_single_for_device
 146#  define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device
 147#  define platform_dma_mapping_error            ia64_mv.dma_mapping_error
 148#  define platform_dma_supported        ia64_mv.dma_supported
 149#  define platform_irq_to_vector        ia64_mv.irq_to_vector
 150#  define platform_local_vector_to_irq  ia64_mv.local_vector_to_irq
 151#  define platform_pci_get_legacy_mem   ia64_mv.pci_get_legacy_mem
 152#  define platform_pci_legacy_read      ia64_mv.pci_legacy_read
 153#  define platform_pci_legacy_write     ia64_mv.pci_legacy_write
 154#  define platform_inb          ia64_mv.inb
 155#  define platform_inw          ia64_mv.inw
 156#  define platform_inl          ia64_mv.inl
 157#  define platform_outb         ia64_mv.outb
 158#  define platform_outw         ia64_mv.outw
 159#  define platform_outl         ia64_mv.outl
 160#  define platform_mmiowb       ia64_mv.mmiowb
 161#  define platform_readb        ia64_mv.readb
 162#  define platform_readw        ia64_mv.readw
 163#  define platform_readl        ia64_mv.readl
 164#  define platform_readq        ia64_mv.readq
 165#  define platform_readb_relaxed        ia64_mv.readb_relaxed
 166#  define platform_readw_relaxed        ia64_mv.readw_relaxed
 167#  define platform_readl_relaxed        ia64_mv.readl_relaxed
 168#  define platform_readq_relaxed        ia64_mv.readq_relaxed
 169#  define platform_migrate              ia64_mv.migrate
 170#  define platform_setup_msi_irq        ia64_mv.setup_msi_irq
 171#  define platform_teardown_msi_irq     ia64_mv.teardown_msi_irq
 172#  define platform_pci_fixup_bus        ia64_mv.pci_fixup_bus
 173#  define platform_kernel_launch_event  ia64_mv.kernel_launch_event
 174# endif
 175
 176/* __attribute__((__aligned__(16))) is required to make size of the
 177 * structure multiple of 16 bytes.
 178 * This will fillup the holes created because of section 3.3.1 in
 179 * Software Conventions guide.
 180 */
 181struct ia64_machine_vector {
 182        const char *name;
 183        ia64_mv_setup_t *setup;
 184        ia64_mv_cpu_init_t *cpu_init;
 185        ia64_mv_irq_init_t *irq_init;
 186        ia64_mv_send_ipi_t *send_ipi;
 187        ia64_mv_timer_interrupt_t *timer_interrupt;
 188        ia64_mv_global_tlb_purge_t *global_tlb_purge;
 189        ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
 190        ia64_mv_dma_init *dma_init;
 191        ia64_mv_dma_alloc_coherent *dma_alloc_coherent;
 192        ia64_mv_dma_free_coherent *dma_free_coherent;
 193        ia64_mv_dma_map_single *dma_map_single;
 194        ia64_mv_dma_unmap_single *dma_unmap_single;
 195        ia64_mv_dma_map_sg *dma_map_sg;
 196        ia64_mv_dma_unmap_sg *dma_unmap_sg;
 197        ia64_mv_dma_sync_single_for_cpu *dma_sync_single_for_cpu;
 198        ia64_mv_dma_sync_sg_for_cpu *dma_sync_sg_for_cpu;
 199        ia64_mv_dma_sync_single_for_device *dma_sync_single_for_device;
 200        ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device;
 201        ia64_mv_dma_mapping_error *dma_mapping_error;
 202        ia64_mv_dma_supported *dma_supported;
 203        ia64_mv_irq_to_vector *irq_to_vector;
 204        ia64_mv_local_vector_to_irq *local_vector_to_irq;
 205        ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
 206        ia64_mv_pci_legacy_read_t *pci_legacy_read;
 207        ia64_mv_pci_legacy_write_t *pci_legacy_write;
 208        ia64_mv_inb_t *inb;
 209        ia64_mv_inw_t *inw;
 210        ia64_mv_inl_t *inl;
 211        ia64_mv_outb_t *outb;
 212        ia64_mv_outw_t *outw;
 213        ia64_mv_outl_t *outl;
 214        ia64_mv_mmiowb_t *mmiowb;
 215        ia64_mv_readb_t *readb;
 216        ia64_mv_readw_t *readw;
 217        ia64_mv_readl_t *readl;
 218        ia64_mv_readq_t *readq;
 219        ia64_mv_readb_relaxed_t *readb_relaxed;
 220        ia64_mv_readw_relaxed_t *readw_relaxed;
 221        ia64_mv_readl_relaxed_t *readl_relaxed;
 222        ia64_mv_readq_relaxed_t *readq_relaxed;
 223        ia64_mv_migrate_t *migrate;
 224        ia64_mv_setup_msi_irq_t *setup_msi_irq;
 225        ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
 226        ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
 227        ia64_mv_kernel_launch_event_t *kernel_launch_event;
 228} __attribute__((__aligned__(16))); /* align attrib? see above comment */
 229
 230#define MACHVEC_INIT(name)                      \
 231{                                               \
 232        #name,                                  \
 233        platform_setup,                         \
 234        platform_cpu_init,                      \
 235        platform_irq_init,                      \
 236        platform_send_ipi,                      \
 237        platform_timer_interrupt,               \
 238        platform_global_tlb_purge,              \
 239        platform_tlb_migrate_finish,            \
 240        platform_dma_init,                      \
 241        platform_dma_alloc_coherent,            \
 242        platform_dma_free_coherent,             \
 243        platform_dma_map_single,                \
 244        platform_dma_unmap_single,              \
 245        platform_dma_map_sg,                    \
 246        platform_dma_unmap_sg,                  \
 247        platform_dma_sync_single_for_cpu,       \
 248        platform_dma_sync_sg_for_cpu,           \
 249        platform_dma_sync_single_for_device,    \
 250        platform_dma_sync_sg_for_device,        \
 251        platform_dma_mapping_error,                     \
 252        platform_dma_supported,                 \
 253        platform_irq_to_vector,                 \
 254        platform_local_vector_to_irq,           \
 255        platform_pci_get_legacy_mem,            \
 256        platform_pci_legacy_read,               \
 257        platform_pci_legacy_write,              \
 258        platform_inb,                           \
 259        platform_inw,                           \
 260        platform_inl,                           \
 261        platform_outb,                          \
 262        platform_outw,                          \
 263        platform_outl,                          \
 264        platform_mmiowb,                        \
 265        platform_readb,                         \
 266        platform_readw,                         \
 267        platform_readl,                         \
 268        platform_readq,                         \
 269        platform_readb_relaxed,                 \
 270        platform_readw_relaxed,                 \
 271        platform_readl_relaxed,                 \
 272        platform_readq_relaxed,                 \
 273        platform_migrate,                       \
 274        platform_setup_msi_irq,                 \
 275        platform_teardown_msi_irq,              \
 276        platform_pci_fixup_bus,                 \
 277        platform_kernel_launch_event            \
 278}
 279
 280extern struct ia64_machine_vector ia64_mv;
 281extern void machvec_init (const char *name);
 282extern void machvec_init_from_cmdline(const char *cmdline);
 283
 284# else
 285#  error Unknown configuration.  Update asm-ia64/machvec.h.
 286# endif /* CONFIG_IA64_GENERIC */
 287
 288/*
 289 * Declare default routines which aren't declared anywhere else:
 290 */
 291extern ia64_mv_dma_init                 swiotlb_init;
 292extern ia64_mv_dma_alloc_coherent       swiotlb_alloc_coherent;
 293extern ia64_mv_dma_free_coherent        swiotlb_free_coherent;
 294extern ia64_mv_dma_map_single           swiotlb_map_single;
 295extern ia64_mv_dma_unmap_single         swiotlb_unmap_single;
 296extern ia64_mv_dma_map_sg               swiotlb_map_sg;
 297extern ia64_mv_dma_unmap_sg             swiotlb_unmap_sg;
 298extern ia64_mv_dma_sync_single_for_cpu  swiotlb_sync_single_for_cpu;
 299extern ia64_mv_dma_sync_sg_for_cpu      swiotlb_sync_sg_for_cpu;
 300extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device;
 301extern ia64_mv_dma_sync_sg_for_device   swiotlb_sync_sg_for_device;
 302extern ia64_mv_dma_mapping_error        swiotlb_dma_mapping_error;
 303extern ia64_mv_dma_supported            swiotlb_dma_supported;
 304
 305/*
 306 * Define default versions so we can extend machvec for new platforms without having
 307 * to update the machvec files for all existing platforms.
 308 */
 309#ifndef platform_setup
 310# define platform_setup                 machvec_setup
 311#endif
 312#ifndef platform_cpu_init
 313# define platform_cpu_init              machvec_noop
 314#endif
 315#ifndef platform_irq_init
 316# define platform_irq_init              machvec_noop
 317#endif
 318
 319#ifndef platform_send_ipi
 320# define platform_send_ipi              ia64_send_ipi   /* default to architected version */
 321#endif
 322#ifndef platform_timer_interrupt
 323# define platform_timer_interrupt       machvec_timer_interrupt
 324#endif
 325#ifndef platform_global_tlb_purge
 326# define platform_global_tlb_purge      ia64_global_tlb_purge /* default to architected version */
 327#endif
 328#ifndef platform_tlb_migrate_finish
 329# define platform_tlb_migrate_finish    machvec_noop_mm
 330#endif
 331#ifndef platform_kernel_launch_event
 332# define platform_kernel_launch_event   machvec_noop
 333#endif
 334#ifndef platform_dma_init
 335# define platform_dma_init              swiotlb_init
 336#endif
 337#ifndef platform_dma_alloc_coherent
 338# define platform_dma_alloc_coherent    swiotlb_alloc_coherent
 339#endif
 340#ifndef platform_dma_free_coherent
 341# define platform_dma_free_coherent     swiotlb_free_coherent
 342#endif
 343#ifndef platform_dma_map_single
 344# define platform_dma_map_single        swiotlb_map_single
 345#endif
 346#ifndef platform_dma_unmap_single
 347# define platform_dma_unmap_single      swiotlb_unmap_single
 348#endif
 349#ifndef platform_dma_map_sg
 350# define platform_dma_map_sg            swiotlb_map_sg
 351#endif
 352#ifndef platform_dma_unmap_sg
 353# define platform_dma_unmap_sg          swiotlb_unmap_sg
 354#endif
 355#ifndef platform_dma_sync_single_for_cpu
 356# define platform_dma_sync_single_for_cpu       swiotlb_sync_single_for_cpu
 357#endif
 358#ifndef platform_dma_sync_sg_for_cpu
 359# define platform_dma_sync_sg_for_cpu           swiotlb_sync_sg_for_cpu
 360#endif
 361#ifndef platform_dma_sync_single_for_device
 362# define platform_dma_sync_single_for_device    swiotlb_sync_single_for_device
 363#endif
 364#ifndef platform_dma_sync_sg_for_device
 365# define platform_dma_sync_sg_for_device        swiotlb_sync_sg_for_device
 366#endif
 367#ifndef platform_dma_mapping_error
 368# define platform_dma_mapping_error             swiotlb_dma_mapping_error
 369#endif
 370#ifndef platform_dma_supported
 371# define  platform_dma_supported        swiotlb_dma_supported
 372#endif
 373#ifndef platform_irq_to_vector
 374# define platform_irq_to_vector         __ia64_irq_to_vector
 375#endif
 376#ifndef platform_local_vector_to_irq
 377# define platform_local_vector_to_irq   __ia64_local_vector_to_irq
 378#endif
 379#ifndef platform_pci_get_legacy_mem
 380# define platform_pci_get_legacy_mem    ia64_pci_get_legacy_mem
 381#endif
 382#ifndef platform_pci_legacy_read
 383# define platform_pci_legacy_read       ia64_pci_legacy_read
 384extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
 385#endif
 386#ifndef platform_pci_legacy_write
 387# define platform_pci_legacy_write      ia64_pci_legacy_write
 388extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
 389#endif
 390#ifndef platform_inb
 391# define platform_inb           __ia64_inb
 392#endif
 393#ifndef platform_inw
 394# define platform_inw           __ia64_inw
 395#endif
 396#ifndef platform_inl
 397# define platform_inl           __ia64_inl
 398#endif
 399#ifndef platform_outb
 400# define platform_outb          __ia64_outb
 401#endif
 402#ifndef platform_outw
 403# define platform_outw          __ia64_outw
 404#endif
 405#ifndef platform_outl
 406# define platform_outl          __ia64_outl
 407#endif
 408#ifndef platform_mmiowb
 409# define platform_mmiowb        __ia64_mmiowb
 410#endif
 411#ifndef platform_readb
 412# define platform_readb         __ia64_readb
 413#endif
 414#ifndef platform_readw
 415# define platform_readw         __ia64_readw
 416#endif
 417#ifndef platform_readl
 418# define platform_readl         __ia64_readl
 419#endif
 420#ifndef platform_readq
 421# define platform_readq         __ia64_readq
 422#endif
 423#ifndef platform_readb_relaxed
 424# define platform_readb_relaxed __ia64_readb_relaxed
 425#endif
 426#ifndef platform_readw_relaxed
 427# define platform_readw_relaxed __ia64_readw_relaxed
 428#endif
 429#ifndef platform_readl_relaxed
 430# define platform_readl_relaxed __ia64_readl_relaxed
 431#endif
 432#ifndef platform_readq_relaxed
 433# define platform_readq_relaxed __ia64_readq_relaxed
 434#endif
 435#ifndef platform_migrate
 436# define platform_migrate machvec_noop_task
 437#endif
 438#ifndef platform_setup_msi_irq
 439# define platform_setup_msi_irq         ((ia64_mv_setup_msi_irq_t*)NULL)
 440#endif
 441#ifndef platform_teardown_msi_irq
 442# define platform_teardown_msi_irq      ((ia64_mv_teardown_msi_irq_t*)NULL)
 443#endif
 444#ifndef platform_pci_fixup_bus
 445# define platform_pci_fixup_bus machvec_noop_bus
 446#endif
 447
 448#endif /* _ASM_IA64_MACHVEC_H */
 449