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98 lines
2.7 KiB
98 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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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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#include <linux/types.h> |
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#ifndef __ASSEMBLY__ |
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#include <linux/reboot.h> |
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struct tag; |
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struct pt_regs; |
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struct smp_operations; |
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#ifdef CONFIG_SMP |
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#define smp_ops(ops) (&(ops)) |
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#define smp_init_ops(ops) (&(ops)) |
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#else |
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#define smp_ops(ops) (struct smp_operations *)NULL |
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#define smp_init_ops(ops) (bool (*)(void))NULL |
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#endif |
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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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phys_addr_t 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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enum reboot_mode reboot_mode; /* default restart mode */ |
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unsigned l2c_aux_val; /* L2 cache aux value */ |
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unsigned l2c_aux_mask; /* L2 cache aux mask */ |
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void (*l2c_write_sec)(unsigned long, unsigned); |
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const struct smp_operations *smp; /* SMP operations */ |
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bool (*smp_init)(void); |
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void (*fixup)(struct tag *, char **); |
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void (*dt_fixup)(void); |
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long long (*pv_fixup)(void); |
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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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void (*init_time)(void); |
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void (*init_machine)(void); |
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void (*init_late)(void); |
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#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER |
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void (*handle_irq)(struct pt_regs *); |
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#endif |
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void (*restart)(enum reboot_mode, 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 const 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 const 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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__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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__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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