linux/arch/ia64/include/asm/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;
  25struct dma_attrs;
  26
  27typedef void ia64_mv_setup_t (char **);
  28typedef void ia64_mv_cpu_init_t (void);
  29typedef void ia64_mv_irq_init_t (void);
  30typedef void ia64_mv_send_ipi_t (int, int, int, int);
  31typedef void ia64_mv_timer_interrupt_t (int, void *);
  32typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
  33typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
  34typedef u8 ia64_mv_irq_to_vector (int);
  35typedef unsigned int ia64_mv_local_vector_to_irq (u8);
  36typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
  37typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
  38                                       u8 size);
  39typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
  40                                        u8 size);
  41typedef void ia64_mv_migrate_t(struct task_struct * task);
  42typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
  43typedef void ia64_mv_kernel_launch_event_t(void);
  44
  45/* DMA-mapping interface: */
  46typedef void ia64_mv_dma_init (void);
  47typedef u64 ia64_mv_dma_get_required_mask (struct device *);
  48typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
  49
  50/*
  51 * WARNING: The legacy I/O space is _architected_.  Platforms are
  52 * expected to follow this architected model (see Section 10.7 in the
  53 * IA-64 Architecture Software Developer's Manual).  Unfortunately,
  54 * some broken machines do not follow that model, which is why we have
  55 * to make the inX/outX operations part of the machine vector.
  56 * Platform designers should follow the architected model whenever
  57 * possible.
  58 */
  59typedef unsigned int ia64_mv_inb_t (unsigned long);
  60typedef unsigned int ia64_mv_inw_t (unsigned long);
  61typedef unsigned int ia64_mv_inl_t (unsigned long);
  62typedef void ia64_mv_outb_t (unsigned char, unsigned long);
  63typedef void ia64_mv_outw_t (unsigned short, unsigned long);
  64typedef void ia64_mv_outl_t (unsigned int, unsigned long);
  65typedef void ia64_mv_mmiowb_t (void);
  66typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
  67typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
  68typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
  69typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
  70typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
  71typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
  72typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
  73typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
  74
  75typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
  76typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
  77
  78static inline void
  79machvec_noop (void)
  80{
  81}
  82
  83static inline void
  84machvec_noop_mm (struct mm_struct *mm)
  85{
  86}
  87
  88static inline void
  89machvec_noop_task (struct task_struct *task)
  90{
  91}
  92
  93static inline void
  94machvec_noop_bus (struct pci_bus *bus)
  95{
  96}
  97
  98extern void machvec_setup (char **);
  99extern void machvec_timer_interrupt (int, void *);
 100extern void machvec_tlb_migrate_finish (struct mm_struct *);
 101
 102# if defined (CONFIG_IA64_HP_SIM)
 103#  include <asm/machvec_hpsim.h>
 104# elif defined (CONFIG_IA64_DIG)
 105#  include <asm/machvec_dig.h>
 106# elif defined(CONFIG_IA64_DIG_VTD)
 107#  include <asm/machvec_dig_vtd.h>
 108# elif defined (CONFIG_IA64_HP_ZX1)
 109#  include <asm/machvec_hpzx1.h>
 110# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
 111#  include <asm/machvec_hpzx1_swiotlb.h>
 112# elif defined (CONFIG_IA64_SGI_SN2)
 113#  include <asm/machvec_sn2.h>
 114# elif defined (CONFIG_IA64_SGI_UV)
 115#  include <asm/machvec_uv.h>
 116# elif defined (CONFIG_IA64_XEN_GUEST)
 117#  include <asm/machvec_xen.h>
 118# elif defined (CONFIG_IA64_GENERIC)
 119
 120# ifdef MACHVEC_PLATFORM_HEADER
 121#  include MACHVEC_PLATFORM_HEADER
 122# else
 123#  define ia64_platform_name    ia64_mv.name
 124#  define platform_setup        ia64_mv.setup
 125#  define platform_cpu_init     ia64_mv.cpu_init
 126#  define platform_irq_init     ia64_mv.irq_init
 127#  define platform_send_ipi     ia64_mv.send_ipi
 128#  define platform_timer_interrupt      ia64_mv.timer_interrupt
 129#  define platform_global_tlb_purge     ia64_mv.global_tlb_purge
 130#  define platform_tlb_migrate_finish   ia64_mv.tlb_migrate_finish
 131#  define platform_dma_init             ia64_mv.dma_init
 132#  define platform_dma_get_required_mask ia64_mv.dma_get_required_mask
 133#  define platform_dma_get_ops          ia64_mv.dma_get_ops
 134#  define platform_irq_to_vector        ia64_mv.irq_to_vector
 135#  define platform_local_vector_to_irq  ia64_mv.local_vector_to_irq
 136#  define platform_pci_get_legacy_mem   ia64_mv.pci_get_legacy_mem
 137#  define platform_pci_legacy_read      ia64_mv.pci_legacy_read
 138#  define platform_pci_legacy_write     ia64_mv.pci_legacy_write
 139#  define platform_inb          ia64_mv.inb
 140#  define platform_inw          ia64_mv.inw
 141#  define platform_inl          ia64_mv.inl
 142#  define platform_outb         ia64_mv.outb
 143#  define platform_outw         ia64_mv.outw
 144#  define platform_outl         ia64_mv.outl
 145#  define platform_mmiowb       ia64_mv.mmiowb
 146#  define platform_readb        ia64_mv.readb
 147#  define platform_readw        ia64_mv.readw
 148#  define platform_readl        ia64_mv.readl
 149#  define platform_readq        ia64_mv.readq
 150#  define platform_readb_relaxed        ia64_mv.readb_relaxed
 151#  define platform_readw_relaxed        ia64_mv.readw_relaxed
 152#  define platform_readl_relaxed        ia64_mv.readl_relaxed
 153#  define platform_readq_relaxed        ia64_mv.readq_relaxed
 154#  define platform_migrate              ia64_mv.migrate
 155#  define platform_setup_msi_irq        ia64_mv.setup_msi_irq
 156#  define platform_teardown_msi_irq     ia64_mv.teardown_msi_irq
 157#  define platform_pci_fixup_bus        ia64_mv.pci_fixup_bus
 158#  define platform_kernel_launch_event  ia64_mv.kernel_launch_event
 159# endif
 160
 161/* __attribute__((__aligned__(16))) is required to make size of the
 162 * structure multiple of 16 bytes.
 163 * This will fillup the holes created because of section 3.3.1 in
 164 * Software Conventions guide.
 165 */
 166struct ia64_machine_vector {
 167        const char *name;
 168        ia64_mv_setup_t *setup;
 169        ia64_mv_cpu_init_t *cpu_init;
 170        ia64_mv_irq_init_t *irq_init;
 171        ia64_mv_send_ipi_t *send_ipi;
 172        ia64_mv_timer_interrupt_t *timer_interrupt;
 173        ia64_mv_global_tlb_purge_t *global_tlb_purge;
 174        ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
 175        ia64_mv_dma_init *dma_init;
 176        ia64_mv_dma_get_required_mask *dma_get_required_mask;
 177        ia64_mv_dma_get_ops *dma_get_ops;
 178        ia64_mv_irq_to_vector *irq_to_vector;
 179        ia64_mv_local_vector_to_irq *local_vector_to_irq;
 180        ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
 181        ia64_mv_pci_legacy_read_t *pci_legacy_read;
 182        ia64_mv_pci_legacy_write_t *pci_legacy_write;
 183        ia64_mv_inb_t *inb;
 184        ia64_mv_inw_t *inw;
 185        ia64_mv_inl_t *inl;
 186        ia64_mv_outb_t *outb;
 187        ia64_mv_outw_t *outw;
 188        ia64_mv_outl_t *outl;
 189        ia64_mv_mmiowb_t *mmiowb;
 190        ia64_mv_readb_t *readb;
 191        ia64_mv_readw_t *readw;
 192        ia64_mv_readl_t *readl;
 193        ia64_mv_readq_t *readq;
 194        ia64_mv_readb_relaxed_t *readb_relaxed;
 195        ia64_mv_readw_relaxed_t *readw_relaxed;
 196        ia64_mv_readl_relaxed_t *readl_relaxed;
 197        ia64_mv_readq_relaxed_t *readq_relaxed;
 198        ia64_mv_migrate_t *migrate;
 199        ia64_mv_setup_msi_irq_t *setup_msi_irq;
 200        ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
 201        ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
 202        ia64_mv_kernel_launch_event_t *kernel_launch_event;
 203} __attribute__((__aligned__(16))); /* align attrib? see above comment */
 204
 205#define MACHVEC_INIT(name)                      \
 206{                                               \
 207        #name,                                  \
 208        platform_setup,                         \
 209        platform_cpu_init,                      \
 210        platform_irq_init,                      \
 211        platform_send_ipi,                      \
 212        platform_timer_interrupt,               \
 213        platform_global_tlb_purge,              \
 214        platform_tlb_migrate_finish,            \
 215        platform_dma_init,                      \
 216        platform_dma_get_required_mask,         \
 217        platform_dma_get_ops,                   \
 218        platform_irq_to_vector,                 \
 219        platform_local_vector_to_irq,           \
 220        platform_pci_get_legacy_mem,            \
 221        platform_pci_legacy_read,               \
 222        platform_pci_legacy_write,              \
 223        platform_inb,                           \
 224        platform_inw,                           \
 225        platform_inl,                           \
 226        platform_outb,                          \
 227        platform_outw,                          \
 228        platform_outl,                          \
 229        platform_mmiowb,                        \
 230        platform_readb,                         \
 231        platform_readw,                         \
 232        platform_readl,                         \
 233        platform_readq,                         \
 234        platform_readb_relaxed,                 \
 235        platform_readw_relaxed,                 \
 236        platform_readl_relaxed,                 \
 237        platform_readq_relaxed,                 \
 238        platform_migrate,                       \
 239        platform_setup_msi_irq,                 \
 240        platform_teardown_msi_irq,              \
 241        platform_pci_fixup_bus,                 \
 242        platform_kernel_launch_event            \
 243}
 244
 245extern struct ia64_machine_vector ia64_mv;
 246extern void machvec_init (const char *name);
 247extern void machvec_init_from_cmdline(const char *cmdline);
 248
 249# else
 250#  error Unknown configuration.  Update arch/ia64/include/asm/machvec.h.
 251# endif /* CONFIG_IA64_GENERIC */
 252
 253extern void swiotlb_dma_init(void);
 254extern struct dma_map_ops *dma_get_ops(struct device *);
 255
 256/*
 257 * Define default versions so we can extend machvec for new platforms without having
 258 * to update the machvec files for all existing platforms.
 259 */
 260#ifndef platform_setup
 261# define platform_setup                 machvec_setup
 262#endif
 263#ifndef platform_cpu_init
 264# define platform_cpu_init              machvec_noop
 265#endif
 266#ifndef platform_irq_init
 267# define platform_irq_init              machvec_noop
 268#endif
 269
 270#ifndef platform_send_ipi
 271# define platform_send_ipi              ia64_send_ipi   /* default to architected version */
 272#endif
 273#ifndef platform_timer_interrupt
 274# define platform_timer_interrupt       machvec_timer_interrupt
 275#endif
 276#ifndef platform_global_tlb_purge
 277# define platform_global_tlb_purge      ia64_global_tlb_purge /* default to architected version */
 278#endif
 279#ifndef platform_tlb_migrate_finish
 280# define platform_tlb_migrate_finish    machvec_noop_mm
 281#endif
 282#ifndef platform_kernel_launch_event
 283# define platform_kernel_launch_event   machvec_noop
 284#endif
 285#ifndef platform_dma_init
 286# define platform_dma_init              swiotlb_dma_init
 287#endif
 288#ifndef platform_dma_get_ops
 289# define platform_dma_get_ops           dma_get_ops
 290#endif
 291#ifndef platform_dma_get_required_mask
 292# define  platform_dma_get_required_mask        ia64_dma_get_required_mask
 293#endif
 294#ifndef platform_irq_to_vector
 295# define platform_irq_to_vector         __ia64_irq_to_vector
 296#endif
 297#ifndef platform_local_vector_to_irq
 298# define platform_local_vector_to_irq   __ia64_local_vector_to_irq
 299#endif
 300#ifndef platform_pci_get_legacy_mem
 301# define platform_pci_get_legacy_mem    ia64_pci_get_legacy_mem
 302#endif
 303#ifndef platform_pci_legacy_read
 304# define platform_pci_legacy_read       ia64_pci_legacy_read
 305extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
 306#endif
 307#ifndef platform_pci_legacy_write
 308# define platform_pci_legacy_write      ia64_pci_legacy_write
 309extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
 310#endif
 311#ifndef platform_inb
 312# define platform_inb           __ia64_inb
 313#endif
 314#ifndef platform_inw
 315# define platform_inw           __ia64_inw
 316#endif
 317#ifndef platform_inl
 318# define platform_inl           __ia64_inl
 319#endif
 320#ifndef platform_outb
 321# define platform_outb          __ia64_outb
 322#endif
 323#ifndef platform_outw
 324# define platform_outw          __ia64_outw
 325#endif
 326#ifndef platform_outl
 327# define platform_outl          __ia64_outl
 328#endif
 329#ifndef platform_mmiowb
 330# define platform_mmiowb        __ia64_mmiowb
 331#endif
 332#ifndef platform_readb
 333# define platform_readb         __ia64_readb
 334#endif
 335#ifndef platform_readw
 336# define platform_readw         __ia64_readw
 337#endif
 338#ifndef platform_readl
 339# define platform_readl         __ia64_readl
 340#endif
 341#ifndef platform_readq
 342# define platform_readq         __ia64_readq
 343#endif
 344#ifndef platform_readb_relaxed
 345# define platform_readb_relaxed __ia64_readb_relaxed
 346#endif
 347#ifndef platform_readw_relaxed
 348# define platform_readw_relaxed __ia64_readw_relaxed
 349#endif
 350#ifndef platform_readl_relaxed
 351# define platform_readl_relaxed __ia64_readl_relaxed
 352#endif
 353#ifndef platform_readq_relaxed
 354# define platform_readq_relaxed __ia64_readq_relaxed
 355#endif
 356#ifndef platform_migrate
 357# define platform_migrate machvec_noop_task
 358#endif
 359#ifndef platform_setup_msi_irq
 360# define platform_setup_msi_irq         ((ia64_mv_setup_msi_irq_t*)NULL)
 361#endif
 362#ifndef platform_teardown_msi_irq
 363# define platform_teardown_msi_irq      ((ia64_mv_teardown_msi_irq_t*)NULL)
 364#endif
 365#ifndef platform_pci_fixup_bus
 366# define platform_pci_fixup_bus machvec_noop_bus
 367#endif
 368
 369#endif /* _ASM_IA64_MACHVEC_H */
 370