97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
|
/* 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);
|
||
|
|
void (*handle_irq)(struct pt_regs *);
|
||
|
|
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 \
|
||
|
|
__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 \
|
||
|
|
__section(".arch.info.init") = { \
|
||
|
|
.nr = ~0, \
|
||
|
|
.name = _namestr,
|
||
|
|
|
||
|
|
#endif
|