2 * arch/arm/include/asm/mach/arch.h
4 * Copyright (C) 2000 Russell King
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.
11 #include <linux/types.h>
18 struct smp_operations;
20 #define smp_ops(ops) (&(ops))
21 #define smp_init_ops(ops) (&(ops))
23 #define smp_ops(ops) (struct smp_operations *)NULL
24 #define smp_init_ops(ops) (bool (*)(void))NULL
28 unsigned int nr; /* architecture number */
29 const char *name; /* architecture name */
30 unsigned long atag_offset; /* tagged list (relative) */
31 const char *const *dt_compat; /* array of device tree
32 * 'compatible' strings */
34 unsigned int nr_irqs; /* number of IRQs */
36 #ifdef CONFIG_ZONE_DMA
37 unsigned long dma_zone_size; /* size of DMA-able area */
40 unsigned int video_start; /* start of video RAM */
41 unsigned int video_end; /* end of video RAM */
43 unsigned char reserve_lp0 :1; /* never has lp0 */
44 unsigned char reserve_lp1 :1; /* never has lp1 */
45 unsigned char reserve_lp2 :1; /* never has lp2 */
46 char restart_mode; /* default restart mode */
47 struct smp_operations *smp; /* SMP operations */
48 bool (*smp_init)(void);
49 void (*fixup)(struct tag *, char **,
51 void (*reserve)(void);/* reserve mem blocks */
52 void (*map_io)(void);/* IO mapping function */
53 void (*init_early)(void);
54 void (*init_irq)(void);
55 void (*init_time)(void);
56 void (*init_machine)(void);
57 void (*init_late)(void);
58 #ifdef CONFIG_MULTI_IRQ_HANDLER
59 void (*handle_irq)(struct pt_regs *);
61 void (*restart)(char, const char *);
65 * Current machine - only accessible during boot.
67 extern struct machine_desc *machine_desc;
70 * Machine type table - also only accessible during boot
72 extern struct machine_desc __arch_info_begin[], __arch_info_end[];
73 #define for_each_machine_desc(p) \
74 for (p = __arch_info_begin; p < __arch_info_end; p++)
77 * Set of macros to define architecture features. This is built into
78 * a table by the linker.
80 #define MACHINE_START(_type,_name) \
81 static const struct machine_desc __mach_desc_##_type \
83 __attribute__((__section__(".arch.info.init"))) = { \
84 .nr = MACH_TYPE_##_type, \
90 #define DT_MACHINE_START(_name, _namestr) \
91 static const struct machine_desc __mach_desc_##_name \
93 __attribute__((__section__(".arch.info.init"))) = { \