mirror of https://gitee.com/openkylin/linux.git
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
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* arch/arm/include/asm/mach/arch.h
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*
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* Copyright (C) 2000 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASSEMBLY__
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struct tag;
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struct meminfo;
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struct sys_timer;
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struct pt_regs;
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struct machine_desc {
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unsigned int nr; /* architecture number */
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const char *name; /* architecture name */
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unsigned long atag_offset; /* tagged list (relative) */
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const char *const *dt_compat; /* array of device tree
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* 'compatible' strings */
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unsigned int nr_irqs; /* number of IRQs */
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#ifdef CONFIG_ZONE_DMA
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unsigned long dma_zone_size; /* size of DMA-able area */
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#endif
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unsigned int video_start; /* start of video RAM */
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unsigned int video_end; /* end of video RAM */
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unsigned char reserve_lp0 :1; /* never has lp0 */
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unsigned char reserve_lp1 :1; /* never has lp1 */
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unsigned char reserve_lp2 :1; /* never has lp2 */
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char restart_mode; /* default restart mode */
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void (*fixup)(struct tag *, char **,
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struct meminfo *);
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void (*reserve)(void);/* reserve mem blocks */
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void (*map_io)(void);/* IO mapping function */
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void (*init_early)(void);
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void (*init_irq)(void);
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struct sys_timer *timer; /* system tick timer */
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void (*init_machine)(void);
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void (*init_late)(void);
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#ifdef CONFIG_MULTI_IRQ_HANDLER
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void (*handle_irq)(struct pt_regs *);
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#endif
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void (*restart)(char, const char *);
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};
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/*
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* Current machine - only accessible during boot.
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*/
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extern struct machine_desc *machine_desc;
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/*
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* Machine type table - also only accessible during boot
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*/
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extern struct machine_desc __arch_info_begin[], __arch_info_end[];
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#define for_each_machine_desc(p) \
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for (p = __arch_info_begin; p < __arch_info_end; p++)
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/*
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* Set of macros to define architecture features. This is built into
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* a table by the linker.
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*/
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#define MACHINE_START(_type,_name) \
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static const struct machine_desc __mach_desc_##_type \
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__used \
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__attribute__((__section__(".arch.info.init"))) = { \
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.nr = MACH_TYPE_##_type, \
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.name = _name,
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#define MACHINE_END \
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};
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#define DT_MACHINE_START(_name, _namestr) \
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static const struct machine_desc __mach_desc_##_name \
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__used \
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__attribute__((__section__(".arch.info.init"))) = { \
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.nr = ~0, \
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.name = _namestr,
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#endif
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