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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/mach/arch.h
*
* Copyright (C) 2000 Russell King
*/
#include <linux/types.h>
#ifndef __ASSEMBLY__
#include <linux/reboot.h>
struct tag;
struct pt_regs;
struct smp_operations;
#ifdef CONFIG_SMP
#define smp_ops(ops) (&(ops))
#define smp_init_ops(ops) (&(ops))
#else
#define smp_ops(ops) (struct smp_operations *)NULL
#define smp_init_ops(ops) (bool (*)(void))NULL
#endif
struct machine_desc {
unsigned int nr; /* architecture number */
const char *name; /* architecture name */
unsigned long atag_offset; /* tagged list (relative) */
const char *const *dt_compat; /* array of device tree
* 'compatible' strings */
unsigned int nr_irqs; /* number of IRQs */
#ifdef CONFIG_ZONE_DMA
phys_addr_t dma_zone_size; /* size of DMA-able area */
#endif
unsigned int video_start; /* start of video RAM */
unsigned int video_end; /* end of video RAM */
unsigned char reserve_lp0 :1; /* never has lp0 */
unsigned char reserve_lp1 :1; /* never has lp1 */
unsigned char reserve_lp2 :1; /* never has lp2 */
enum reboot_mode reboot_mode; /* default restart mode */
unsigned l2c_aux_val; /* L2 cache aux value */
unsigned l2c_aux_mask; /* L2 cache aux mask */
void (*l2c_write_sec)(unsigned long, unsigned);
const struct smp_operations *smp; /* SMP operations */
bool (*smp_init)(void);
void (*fixup)(struct tag *, char **);
void (*dt_fixup)(void);
long long (*pv_fixup)(void);
void (*reserve)(void);/* reserve mem blocks */
void (*map_io)(void);/* IO mapping function */
void (*init_early)(void);
void (*init_irq)(void);
void (*init_time)(void);
void (*init_machine)(void);
void (*init_late)(void);
#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER
void (*handle_irq)(struct pt_regs *);
#endif
void (*restart)(enum reboot_mode, const char *);
};
/*
* Current machine - only accessible during boot.
*/
extern const struct machine_desc *machine_desc;
/*
* Machine type table - also only accessible during boot
*/
extern const struct machine_desc __arch_info_begin[], __arch_info_end[];
#define for_each_machine_desc(p) \
for (p = __arch_info_begin; p < __arch_info_end; p++)
/*
* Set of macros to define architecture features. This is built into
* a table by the linker.
*/
#define MACHINE_START(_type,_name) \
static const struct machine_desc __mach_desc_##_type \
__used \
__attribute__((__section__(".arch.info.init"))) = { \
.nr = MACH_TYPE_##_type, \
.name = _name,
#define MACHINE_END \
};
#define DT_MACHINE_START(_name, _namestr) \
static const struct machine_desc __mach_desc_##_name \
__used \
__attribute__((__section__(".arch.info.init"))) = { \
.nr = ~0, \
.name = _namestr,
#endif