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>
14 #include <linux/reboot.h>
19 struct smp_operations;
21 #define smp_ops(ops) (&(ops))
22 #define smp_init_ops(ops) (&(ops))
24 #define smp_ops(ops) (struct smp_operations *)NULL
25 #define smp_init_ops(ops) (bool (*)(void))NULL
29 unsigned int nr; /* architecture number */
30 const char *name; /* architecture name */
31 unsigned long atag_offset; /* tagged list (relative) */
32 const char *const *dt_compat; /* array of device tree
33 * 'compatible' strings */
35 unsigned int nr_irqs; /* number of IRQs */
37 #ifdef CONFIG_ZONE_DMA
38 phys_addr_t dma_zone_size; /* size of DMA-able area */
41 unsigned int video_start; /* start of video RAM */
42 unsigned int video_end; /* end of video RAM */
44 unsigned char reserve_lp0 :1; /* never has lp0 */
45 unsigned char reserve_lp1 :1; /* never has lp1 */
46 unsigned char reserve_lp2 :1; /* never has lp2 */
47 enum reboot_mode reboot_mode; /* default restart mode */
48 unsigned l2c_aux_val; /* L2 cache aux value */
49 unsigned l2c_aux_mask; /* L2 cache aux mask */
50 void (*l2c_write_sec)(unsigned long, unsigned);
51 struct smp_operations *smp; /* SMP operations */
52 bool (*smp_init)(void);
53 void (*fixup)(struct tag *, char **,
55 void (*init_meminfo)(void);
56 void (*reserve)(void);/* reserve mem blocks */
57 void (*map_io)(void);/* IO mapping function */
58 void (*init_early)(void);
59 void (*init_irq)(void);
60 void (*init_time)(void);
61 void (*init_machine)(void);
62 void (*init_late)(void);
63 #ifdef CONFIG_MULTI_IRQ_HANDLER
64 void (*handle_irq)(struct pt_regs *);
66 void (*restart)(enum reboot_mode, const char *);
70 * Current machine - only accessible during boot.
72 extern const struct machine_desc *machine_desc;
75 * Machine type table - also only accessible during boot
77 extern const struct machine_desc __arch_info_begin[], __arch_info_end[];
78 #define for_each_machine_desc(p) \
79 for (p = __arch_info_begin; p < __arch_info_end; p++)
82 * Set of macros to define architecture features. This is built into
83 * a table by the linker.
85 #define MACHINE_START(_type,_name) \
86 static const struct machine_desc __mach_desc_##_type \
88 __attribute__((__section__(".arch.info.init"))) = { \
89 .nr = MACH_TYPE_##_type, \
95 #define DT_MACHINE_START(_name, _namestr) \
96 static const struct machine_desc __mach_desc_##_name \
98 __attribute__((__section__(".arch.info.init"))) = { \