arch.h

  1 /*
  2  *  arch/arm/include/asm/mach/arch.h
  3  *
  4  *  Copyright (C) 2000 Russell King
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License version 2 as
  8  * published by the Free Software Foundation.
  9  */
 10 
 11 #ifndef __ASSEMBLY__
 12 
 13 struct tag;
 14 struct meminfo;
 15 struct pt_regs;
 16 struct smp_operations;
 17 #ifdef CONFIG_SMP
 18 #define smp_ops(ops) (&(ops))
 19 #else
 20 #define smp_ops(ops) (struct smp_operations *)NULL
 21 #endif
 22 
 23 struct machine_desc {
 24         unsigned int            nr;             /* architecture number  */
 25         const char              *name;          /* architecture name    */
 26         unsigned long           atag_offset;    /* tagged list (relative) */
 27         const char *const       *dt_compat;     /* array of device tree
 28                                                  * 'compatible' strings */
 29 
 30         unsigned int            nr_irqs;        /* number of IRQs */
 31 
 32 #ifdef CONFIG_ZONE_DMA
 33         unsigned long           dma_zone_size;  /* size of DMA-able area */
 34 #endif
 35 
 36         unsigned int            video_start;    /* start of video RAM   */
 37         unsigned int            video_end;      /* end of video RAM     */
 38 
 39         unsigned char           reserve_lp0 :1; /* never has lp0        */
 40         unsigned char           reserve_lp1 :1; /* never has lp1        */
 41         unsigned char           reserve_lp2 :1; /* never has lp2        */
 42         char                    restart_mode;   /* default restart mode */
 43         struct smp_operations   *smp;           /* SMP operations       */
 44         void                    (*fixup)(struct tag *, char **,
 45                                          struct meminfo *);
 46         void                    (*reserve)(void);/* reserve mem blocks  */
 47         void                    (*map_io)(void);/* IO mapping function  */
 48         void                    (*init_early)(void);
 49         void                    (*init_irq)(void);
 50         void                    (*init_time)(void);
 51         void                    (*init_machine)(void);
 52         void                    (*init_late)(void);
 53 #ifdef CONFIG_MULTI_IRQ_HANDLER
 54         void                    (*handle_irq)(struct pt_regs *);
 55 #endif
 56         void                    (*restart)(char, const char *);
 57 };
 58 
 59 /*
 60  * Current machine - only accessible during boot.
 61  */
 62 extern struct machine_desc *machine_desc;
 63 
 64 /*
 65  * Machine type table - also only accessible during boot
 66  */
 67 extern struct machine_desc __arch_info_begin[], __arch_info_end[];
 68 #define for_each_machine_desc(p)                        \
 69         for (p = __arch_info_begin; p < __arch_info_end; p++)
 70 
 71 /*
 72  * Set of macros to define architecture features.  This is built into
 73  * a table by the linker.
 74  */
 75 #define MACHINE_START(_type,_name)                      \
 76 static const struct machine_desc __mach_desc_##_type    \
 77  __used                                                 \
 78  __attribute__((__section__(".arch.info.init"))) = {    \
 79         .nr             = MACH_TYPE_##_type,            \
 80         .name           = _name,
 81 
 82 #define MACHINE_END                             \
 83 };
 84 
 85 #define DT_MACHINE_START(_name, _namestr)               \
 86 static const struct machine_desc __mach_desc_##_name    \
 87  __used                                                 \
 88  __attribute__((__section__(".arch.info.init"))) = {    \
 89         .nr             = ~0,                           \
 90         .name           = _namestr,
 91 
 92 #endif
 93
This page was automatically generated by LXR 0.3.1 (source). • Linux is a registered trademark of Linus Torvalds
Linux Cross Reference

Free Electrons

Embedded Linux Experts

Linux/arch/arm/include/asm/mach/arch.h
