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/config.h>
  14 #include <linux/types.h>
  15
  16 /* forward declarations: */
  17 struct device;
  18 struct pt_regs;
  19 struct scatterlist;
  20 struct irq_desc;
  21 struct page;
  22 struct mm_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 (unsigned long, unsigned long, unsigned long);
  30 typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
  31 typedef struct irq_desc *ia64_mv_irq_desc (unsigned int);
  32 typedef u8 ia64_mv_irq_to_vector (unsigned int);
  33 typedef unsigned int ia64_mv_local_vector_to_irq (u8);
  34
  35 /* DMA-mapping interface: */
  36 typedef void ia64_mv_dma_init (void);
  37 typedef void *ia64_mv_dma_alloc_coherent (struct device *, size_t, dma_addr_t *, int);
  38 typedef void ia64_mv_dma_free_coherent (struct device *, size_t, void *, dma_addr_t);
  39 typedef dma_addr_t ia64_mv_dma_map_single (struct device *, void *, size_t, int);
  40 typedef void ia64_mv_dma_unmap_single (struct device *, dma_addr_t, size_t, int);
  41 typedef int ia64_mv_dma_map_sg (struct device *, struct scatterlist *, int, int);
  42 typedef void ia64_mv_dma_unmap_sg (struct device *, struct scatterlist *, int, int);
  43 typedef void ia64_mv_dma_sync_single_for_cpu (struct device *, dma_addr_t, size_t, int);
  44 typedef void ia64_mv_dma_sync_sg_for_cpu (struct device *, struct scatterlist *, int, int);
  45 typedef void ia64_mv_dma_sync_single_for_device (struct device *, dma_addr_t, size_t, int);
  46 typedef void ia64_mv_dma_sync_sg_for_device (struct device *, struct scatterlist *, int, int);
  47 typedef int ia64_mv_dma_mapping_error (dma_addr_t dma_addr);
  48 typedef int ia64_mv_dma_supported (struct device *, u64);
  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  */
  59 typedef unsigned int ia64_mv_inb_t (unsigned long);
  60 typedef unsigned int ia64_mv_inw_t (unsigned long);
  61 typedef unsigned int ia64_mv_inl_t (unsigned long);
  62 typedef void ia64_mv_outb_t (unsigned char, unsigned long);
  63 typedef void ia64_mv_outw_t (unsigned short, unsigned long);
  64 typedef void ia64_mv_outl_t (unsigned int, unsigned long);
  65 typedef void ia64_mv_mmiowb_t (void);
  66 typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
  67 typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
  68 typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
  69 typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
  70 typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
  71 typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
  72 typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
  73 typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
  74
  75 static inline void
  76 machvec_noop (void)
  77 {
  78 }
  79
  80 static inline void
  81 machvec_noop_mm (struct mm_struct *mm)
  82 {
  83 }
  84
  85 extern void machvec_setup (char **);
  86 extern void machvec_timer_interrupt (int, void *, struct pt_regs *);
  87 extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
  88 extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
  89 extern void machvec_tlb_migrate_finish (struct mm_struct *);
  90
  91 # if defined (CONFIG_IA64_HP_SIM)
  92 #  include <asm/machvec_hpsim.h>
  93 # elif defined (CONFIG_IA64_DIG)
  94 #  include <asm/machvec_dig.h>
  95 # elif defined (CONFIG_IA64_HP_ZX1)
  96 #  include <asm/machvec_hpzx1.h>
  97 # elif defined (CONFIG_IA64_SGI_SN2)
  98 #  include <asm/machvec_sn2.h>
  99 # elif defined (CONFIG_IA64_GENERIC)
 100
 101 # ifdef MACHVEC_PLATFORM_HEADER
 102 #  include MACHVEC_PLATFORM_HEADER
 103 # else
 104 #  define platform_name         ia64_mv.name
 105 #  define platform_setup        ia64_mv.setup
 106 #  define platform_cpu_init     ia64_mv.cpu_init
 107 #  define platform_irq_init     ia64_mv.irq_init
 108 #  define platform_send_ipi     ia64_mv.send_ipi
 109 #  define platform_timer_interrupt      ia64_mv.timer_interrupt
 110 #  define platform_global_tlb_purge     ia64_mv.global_tlb_purge
 111 #  define platform_tlb_migrate_finish   ia64_mv.tlb_migrate_finish
 112 #  define platform_dma_init             ia64_mv.dma_init
 113 #  define platform_dma_alloc_coherent   ia64_mv.dma_alloc_coherent
 114 #  define platform_dma_free_coherent    ia64_mv.dma_free_coherent
 115 #  define platform_dma_map_single       ia64_mv.dma_map_single
 116 #  define platform_dma_unmap_single     ia64_mv.dma_unmap_single
 117 #  define platform_dma_map_sg           ia64_mv.dma_map_sg
 118 #  define platform_dma_unmap_sg         ia64_mv.dma_unmap_sg
 119 #  define platform_dma_sync_single_for_cpu ia64_mv.dma_sync_single_for_cpu
 120 #  define platform_dma_sync_sg_for_cpu  ia64_mv.dma_sync_sg_for_cpu
 121 #  define platform_dma_sync_single_for_device ia64_mv.dma_sync_single_for_device
 122 #  define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device
 123 #  define platform_dma_mapping_error            ia64_mv.dma_mapping_error
 124 #  define platform_dma_supported        ia64_mv.dma_supported
 125 #  define platform_irq_desc             ia64_mv.irq_desc
 126 #  define platform_irq_to_vector        ia64_mv.irq_to_vector
 127 #  define platform_local_vector_to_irq  ia64_mv.local_vector_to_irq
 128 #  define platform_inb          ia64_mv.inb
 129 #  define platform_inw          ia64_mv.inw
 130 #  define platform_inl          ia64_mv.inl
 131 #  define platform_outb         ia64_mv.outb
 132 #  define platform_outw         ia64_mv.outw
 133 #  define platform_outl         ia64_mv.outl
 134 #  define platform_mmiowb       ia64_mv.mmiowb
 135 #  define platform_readb        ia64_mv.readb
 136 #  define platform_readw        ia64_mv.readw
 137 #  define platform_readl        ia64_mv.readl
 138 #  define platform_readq        ia64_mv.readq
 139 #  define platform_readb_relaxed        ia64_mv.readb_relaxed
 140 #  define platform_readw_relaxed        ia64_mv.readw_relaxed
 141 #  define platform_readl_relaxed        ia64_mv.readl_relaxed
 142 #  define platform_readq_relaxed        ia64_mv.readq_relaxed
 143 # endif
 144
 145 /* __attribute__((__aligned__(16))) is required to make size of the
 146  * structure multiple of 16 bytes.
 147  * This will fillup the holes created because of section 3.3.1 in
 148  * Software Conventions guide.
 149  */
 150 struct ia64_machine_vector {
 151         const char *name;
 152         ia64_mv_setup_t *setup;
 153         ia64_mv_cpu_init_t *cpu_init;
 154         ia64_mv_irq_init_t *irq_init;
 155         ia64_mv_send_ipi_t *send_ipi;
 156         ia64_mv_timer_interrupt_t *timer_interrupt;
 157         ia64_mv_global_tlb_purge_t *global_tlb_purge;
 158         ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
 159         ia64_mv_dma_init *dma_init;
 160         ia64_mv_dma_alloc_coherent *dma_alloc_coherent;
 161         ia64_mv_dma_free_coherent *dma_free_coherent;
 162         ia64_mv_dma_map_single *dma_map_single;
 163         ia64_mv_dma_unmap_single *dma_unmap_single;
 164         ia64_mv_dma_map_sg *dma_map_sg;
 165         ia64_mv_dma_unmap_sg *dma_unmap_sg;
 166         ia64_mv_dma_sync_single_for_cpu *dma_sync_single_for_cpu;
 167         ia64_mv_dma_sync_sg_for_cpu *dma_sync_sg_for_cpu;
 168         ia64_mv_dma_sync_single_for_device *dma_sync_single_for_device;
 169         ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device;
 170         ia64_mv_dma_mapping_error *dma_mapping_error;
 171         ia64_mv_dma_supported *dma_supported;
 172         ia64_mv_irq_desc *irq_desc;
 173         ia64_mv_irq_to_vector *irq_to_vector;
 174         ia64_mv_local_vector_to_irq *local_vector_to_irq;
 175         ia64_mv_inb_t *inb;
 176         ia64_mv_inw_t *inw;
 177         ia64_mv_inl_t *inl;
 178         ia64_mv_outb_t *outb;
 179         ia64_mv_outw_t *outw;
 180         ia64_mv_outl_t *outl;
 181         ia64_mv_mmiowb_t *mmiowb;
 182         ia64_mv_readb_t *readb;
 183         ia64_mv_readw_t *readw;
 184         ia64_mv_readl_t *readl;
 185         ia64_mv_readq_t *readq;
 186         ia64_mv_readb_relaxed_t *readb_relaxed;
 187         ia64_mv_readw_relaxed_t *readw_relaxed;
 188         ia64_mv_readl_relaxed_t *readl_relaxed;
 189         ia64_mv_readq_relaxed_t *readq_relaxed;
 190 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
 191
 192 #define MACHVEC_INIT(name)                      \
 193 {                                               \
 194         #name,                                  \
 195         platform_setup,                         \
 196         platform_cpu_init,                      \
 197         platform_irq_init,                      \
 198         platform_send_ipi,                      \
 199         platform_timer_interrupt,               \
 200         platform_global_tlb_purge,              \
 201         platform_tlb_migrate_finish,            \
 202         platform_dma_init,                      \
 203         platform_dma_alloc_coherent,            \
 204         platform_dma_free_coherent,             \
 205         platform_dma_map_single,                \
 206         platform_dma_unmap_single,              \
 207         platform_dma_map_sg,                    \
 208         platform_dma_unmap_sg,                  \
 209         platform_dma_sync_single_for_cpu,       \
 210         platform_dma_sync_sg_for_cpu,           \
 211         platform_dma_sync_single_for_device,    \
 212         platform_dma_sync_sg_for_device,        \
 213         platform_dma_mapping_error,                     \
 214         platform_dma_supported,                 \
 215         platform_irq_desc,                      \
 216         platform_irq_to_vector,                 \
 217         platform_local_vector_to_irq,           \
 218         platform_inb,                           \
 219         platform_inw,                           \
 220         platform_inl,                           \
 221         platform_outb,                          \
 222         platform_outw,                          \
 223         platform_outl,                          \
 224         platform_mmiowb,                        \
 225         platform_readb,                         \
 226         platform_readw,                         \
 227         platform_readl,                         \
 228         platform_readq,                         \
 229         platform_readb_relaxed,                 \
 230         platform_readw_relaxed,                 \
 231         platform_readl_relaxed,                 \
 232         platform_readq_relaxed,                 \
 233 }
 234
 235 extern struct ia64_machine_vector ia64_mv;
 236 extern void machvec_init (const char *name);
 237
 238 # else
 239 #  error Unknown configuration.  Update asm-ia64/machvec.h.
 240 # endif /* CONFIG_IA64_GENERIC */
 241
 242 /*
 243  * Declare default routines which aren't declared anywhere else:
 244  */
 245 extern ia64_mv_dma_init                 swiotlb_init;
 246 extern ia64_mv_dma_alloc_coherent       swiotlb_alloc_coherent;
 247 extern ia64_mv_dma_free_coherent        swiotlb_free_coherent;
 248 extern ia64_mv_dma_map_single           swiotlb_map_single;
 249 extern ia64_mv_dma_unmap_single         swiotlb_unmap_single;
 250 extern ia64_mv_dma_map_sg               swiotlb_map_sg;
 251 extern ia64_mv_dma_unmap_sg             swiotlb_unmap_sg;
 252 extern ia64_mv_dma_sync_single_for_cpu  swiotlb_sync_single_for_cpu;
 253 extern ia64_mv_dma_sync_sg_for_cpu      swiotlb_sync_sg_for_cpu;
 254 extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device;
 255 extern ia64_mv_dma_sync_sg_for_device   swiotlb_sync_sg_for_device;
 256 extern ia64_mv_dma_mapping_error        swiotlb_dma_mapping_error;
 257 extern ia64_mv_dma_supported            swiotlb_dma_supported;
 258
 259 /*
 260  * Define default versions so we can extend machvec for new platforms without having
 261  * to update the machvec files for all existing platforms.
 262  */
 263 #ifndef platform_setup
 264 # define platform_setup                 machvec_setup
 265 #endif
 266 #ifndef platform_cpu_init
 267 # define platform_cpu_init              machvec_noop
 268 #endif
 269 #ifndef platform_irq_init
 270 # define platform_irq_init              machvec_noop
 271 #endif
 272
 273 #ifndef platform_send_ipi
 274 # define platform_send_ipi              ia64_send_ipi   /* default to architected version */
 275 #endif
 276 #ifndef platform_timer_interrupt
 277 # define platform_timer_interrupt       machvec_timer_interrupt
 278 #endif
 279 #ifndef platform_global_tlb_purge
 280 # define platform_global_tlb_purge      ia64_global_tlb_purge /* default to architected version */
 281 #endif
 282 #ifndef platform_tlb_migrate_finish
 283 # define platform_tlb_migrate_finish    machvec_noop_mm
 284 #endif
 285 #ifndef platform_dma_init
 286 # define platform_dma_init              swiotlb_init
 287 #endif
 288 #ifndef platform_dma_alloc_coherent
 289 # define platform_dma_alloc_coherent    swiotlb_alloc_coherent
 290 #endif
 291 #ifndef platform_dma_free_coherent
 292 # define platform_dma_free_coherent     swiotlb_free_coherent
 293 #endif
 294 #ifndef platform_dma_map_single
 295 # define platform_dma_map_single        swiotlb_map_single
 296 #endif
 297 #ifndef platform_dma_unmap_single
 298 # define platform_dma_unmap_single      swiotlb_unmap_single
 299 #endif
 300 #ifndef platform_dma_map_sg
 301 # define platform_dma_map_sg            swiotlb_map_sg
 302 #endif
 303 #ifndef platform_dma_unmap_sg
 304 # define platform_dma_unmap_sg          swiotlb_unmap_sg
 305 #endif
 306 #ifndef platform_dma_sync_single_for_cpu
 307 # define platform_dma_sync_single_for_cpu       swiotlb_sync_single_for_cpu
 308 #endif
 309 #ifndef platform_dma_sync_sg_for_cpu
 310 # define platform_dma_sync_sg_for_cpu           swiotlb_sync_sg_for_cpu
 311 #endif
 312 #ifndef platform_dma_sync_single_for_device
 313 # define platform_dma_sync_single_for_device    swiotlb_sync_single_for_device
 314 #endif
 315 #ifndef platform_dma_sync_sg_for_device
 316 # define platform_dma_sync_sg_for_device        swiotlb_sync_sg_for_device
 317 #endif
 318 #ifndef platform_dma_mapping_error
 319 # define platform_dma_mapping_error             swiotlb_dma_mapping_error
 320 #endif
 321 #ifndef platform_dma_supported
 322 # define  platform_dma_supported        swiotlb_dma_supported
 323 #endif
 324 #ifndef platform_irq_desc
 325 # define platform_irq_desc              __ia64_irq_desc
 326 #endif
 327 #ifndef platform_irq_to_vector
 328 # define platform_irq_to_vector         __ia64_irq_to_vector
 329 #endif
 330 #ifndef platform_local_vector_to_irq
 331 # define platform_local_vector_to_irq   __ia64_local_vector_to_irq
 332 #endif
 333 #ifndef platform_inb
 334 # define platform_inb           __ia64_inb
 335 #endif
 336 #ifndef platform_inw
 337 # define platform_inw           __ia64_inw
 338 #endif
 339 #ifndef platform_inl
 340 # define platform_inl           __ia64_inl
 341 #endif
 342 #ifndef platform_outb
 343 # define platform_outb          __ia64_outb
 344 #endif
 345 #ifndef platform_outw
 346 # define platform_outw          __ia64_outw
 347 #endif
 348 #ifndef platform_outl
 349 # define platform_outl          __ia64_outl
 350 #endif
 351 #ifndef platform_mmiowb
 352 # define platform_mmiowb        __ia64_mmiowb
 353 #endif
 354 #ifndef platform_readb
 355 # define platform_readb         __ia64_readb
 356 #endif
 357 #ifndef platform_readw
 358 # define platform_readw         __ia64_readw
 359 #endif
 360 #ifndef platform_readl
 361 # define platform_readl         __ia64_readl
 362 #endif
 363 #ifndef platform_readq
 364 # define platform_readq         __ia64_readq
 365 #endif
 366 #ifndef platform_readb_relaxed
 367 # define platform_readb_relaxed __ia64_readb_relaxed
 368 #endif
 369 #ifndef platform_readw_relaxed
 370 # define platform_readw_relaxed __ia64_readw_relaxed
 371 #endif
 372 #ifndef platform_readl_relaxed
 373 # define platform_readl_relaxed __ia64_readl_relaxed
 374 #endif
 375 #ifndef platform_readq_relaxed
 376 # define platform_readq_relaxed __ia64_readq_relaxed
 377 #endif
 378
 379 #endif /* _ASM_IA64_MACHVEC_H */