include/asm-ia64/machvec.h

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