Merge branch 'restart-cleanup' into restart
[~shefty/rdma-dev.git] / arch / arm / include / asm / mach / 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 sys_timer;
16 struct pt_regs;
17
18 struct machine_desc {
19         unsigned int            nr;             /* architecture number  */
20         const char              *name;          /* architecture name    */
21         unsigned long           atag_offset;    /* tagged list (relative) */
22         const char              **dt_compat;    /* array of device tree
23                                                  * 'compatible' strings */
24
25         unsigned int            nr_irqs;        /* number of IRQs */
26
27 #ifdef CONFIG_ZONE_DMA
28         unsigned long           dma_zone_size;  /* size of DMA-able area */
29 #endif
30
31         unsigned int            video_start;    /* start of video RAM   */
32         unsigned int            video_end;      /* end of video RAM     */
33
34         unsigned char           reserve_lp0 :1; /* never has lp0        */
35         unsigned char           reserve_lp1 :1; /* never has lp1        */
36         unsigned char           reserve_lp2 :1; /* never has lp2        */
37         char                    restart_mode;   /* default restart mode */
38         void                    (*fixup)(struct tag *, char **,
39                                          struct meminfo *);
40         void                    (*reserve)(void);/* reserve mem blocks  */
41         void                    (*map_io)(void);/* IO mapping function  */
42         void                    (*init_early)(void);
43         void                    (*init_irq)(void);
44         struct sys_timer        *timer;         /* system tick timer    */
45         void                    (*init_machine)(void);
46 #ifdef CONFIG_MULTI_IRQ_HANDLER
47         void                    (*handle_irq)(struct pt_regs *);
48 #endif
49         void                    (*restart)(char, const char *);
50 };
51
52 /*
53  * Current machine - only accessible during boot.
54  */
55 extern struct machine_desc *machine_desc;
56
57 /*
58  * Machine type table - also only accessible during boot
59  */
60 extern struct machine_desc __arch_info_begin[], __arch_info_end[];
61 #define for_each_machine_desc(p)                        \
62         for (p = __arch_info_begin; p < __arch_info_end; p++)
63
64 /*
65  * Set of macros to define architecture features.  This is built into
66  * a table by the linker.
67  */
68 #define MACHINE_START(_type,_name)                      \
69 static const struct machine_desc __mach_desc_##_type    \
70  __used                                                 \
71  __attribute__((__section__(".arch.info.init"))) = {    \
72         .nr             = MACH_TYPE_##_type,            \
73         .name           = _name,
74
75 #define MACHINE_END                             \
76 };
77
78 #define DT_MACHINE_START(_name, _namestr)               \
79 static const struct machine_desc __mach_desc_##_name    \
80  __used                                                 \
81  __attribute__((__section__(".arch.info.init"))) = {    \
82         .nr             = ~0,                           \
83         .name           = _namestr,
84
85 #endif