1/*
 2 *  arch/arm/include/asm/mach/arch.h
 3 *
 4 *  Copyright (C) 2000 Russell King
 5 *
 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.
 9 */
10
 
 
11#ifndef __ASSEMBLY__
 
12
13struct tag;
14struct meminfo;
15struct sys_timer;
 
 
 
 
 
 
 
16
17struct machine_desc {
18	unsigned int		nr;		/* architecture number	*/
19	const char		*name;		/* architecture name	*/
20	unsigned long		boot_params;	/* tagged list		*/
21	const char		**dt_compat;	/* array of device tree
22						 * 'compatible' strings	*/
23
24	unsigned int		nr_irqs;	/* number of IRQs */
25
26#ifdef CONFIG_ZONE_DMA
27	unsigned long		dma_zone_size;	/* size of DMA-able area */
28#endif
29
30	unsigned int		video_start;	/* start of video RAM	*/
31	unsigned int		video_end;	/* end of video RAM	*/
32
33	unsigned int		reserve_lp0 :1;	/* never has lp0	*/
34	unsigned int		reserve_lp1 :1;	/* never has lp1	*/
35	unsigned int		reserve_lp2 :1;	/* never has lp2	*/
36	unsigned int		soft_reboot :1;	/* soft reboot		*/
37	void			(*fixup)(struct machine_desc *,
38					 struct tag *, char **,
39					 struct meminfo *);
 
 
 
 
 
40	void			(*reserve)(void);/* reserve mem blocks	*/
41	void			(*map_io)(void);/* IO mapping function	*/
42	void			(*init_early)(void);
43	void			(*init_irq)(void);
44	struct sys_timer	*timer;		/* system tick timer	*/
45	void			(*init_machine)(void);
46#ifdef CONFIG_MULTI_IRQ_HANDLER
47	void			(*handle_irq)(struct pt_regs *);
48#endif
49};
50
51/*
52 * Current machine - only accessible during boot.
53 */
54extern struct machine_desc *machine_desc;
55
56/*
57 * Machine type table - also only accessible during boot
58 */
59extern struct machine_desc __arch_info_begin[], __arch_info_end[];
60#define for_each_machine_desc(p)			\
61	for (p = __arch_info_begin; p < __arch_info_end; p++)
62
63/*
64 * Set of macros to define architecture features.  This is built into
65 * a table by the linker.
66 */
67#define MACHINE_START(_type,_name)			\
68static const struct machine_desc __mach_desc_##_type	\
69 __used							\
70 __attribute__((__section__(".arch.info.init"))) = {	\
71	.nr		= MACH_TYPE_##_type,		\
72	.name		= _name,
73
74#define MACHINE_END				\
75};
76
77#define DT_MACHINE_START(_name, _namestr)		\
78static const struct machine_desc __mach_desc_##_name	\
79 __used							\
80 __attribute__((__section__(".arch.info.init"))) = {	\
81	.nr		= ~0,				\
82	.name		= _namestr,
83
84#endif

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *  arch/arm/include/asm/mach/arch.h
 4 *
 5 *  Copyright (C) 2000 Russell King
 
 
 
 
 6 */
 7
 8#include <linux/types.h>
 9
10#ifndef __ASSEMBLY__
11#include <linux/reboot.h>
12
13struct tag;
14struct pt_regs;
15struct smp_operations;
16#ifdef CONFIG_SMP
17#define smp_ops(ops) (&(ops))
18#define smp_init_ops(ops) (&(ops))
19#else
20#define smp_ops(ops) (struct smp_operations *)NULL
21#define smp_init_ops(ops) (bool (*)(void))NULL
22#endif
23
24struct machine_desc {
25	unsigned int		nr;		/* architecture number	*/
26	const char		*name;		/* architecture name	*/
27	unsigned long		atag_offset;	/* tagged list (relative) */
28	const char *const 	*dt_compat;	/* array of device tree
29						 * 'compatible' strings	*/
30
31	unsigned int		nr_irqs;	/* number of IRQs */
32
33#ifdef CONFIG_ZONE_DMA
34	phys_addr_t		dma_zone_size;	/* size of DMA-able area */
35#endif
36
37	unsigned int		video_start;	/* start of video RAM	*/
38	unsigned int		video_end;	/* end of video RAM	*/
39
40	unsigned char		reserve_lp0 :1;	/* never has lp0	*/
41	unsigned char		reserve_lp1 :1;	/* never has lp1	*/
42	unsigned char		reserve_lp2 :1;	/* never has lp2	*/
43	enum reboot_mode	reboot_mode;	/* default restart mode	*/
44	unsigned		l2c_aux_val;	/* L2 cache aux value	*/
45	unsigned		l2c_aux_mask;	/* L2 cache aux mask	*/
46	void			(*l2c_write_sec)(unsigned long, unsigned);
47	const struct smp_operations	*smp;	/* SMP operations	*/
48	bool			(*smp_init)(void);
49	void			(*fixup)(struct tag *, char **);
50	void			(*dt_fixup)(void);
51	long long		(*pv_fixup)(void);
52	void			(*reserve)(void);/* reserve mem blocks	*/
53	void			(*map_io)(void);/* IO mapping function	*/
54	void			(*init_early)(void);
55	void			(*init_irq)(void);
56	void			(*init_time)(void);
57	void			(*init_machine)(void);
58	void			(*init_late)(void);
59	void			(*handle_irq)(struct pt_regs *);
60	void			(*restart)(enum reboot_mode, const char *);
61};
62
63/*
64 * Current machine - only accessible during boot.
65 */
66extern const struct machine_desc *machine_desc;
67
68/*
69 * Machine type table - also only accessible during boot
70 */
71extern const struct machine_desc __arch_info_begin[], __arch_info_end[];
72#define for_each_machine_desc(p)			\
73	for (p = __arch_info_begin; p < __arch_info_end; p++)
74
75/*
76 * Set of macros to define architecture features.  This is built into
77 * a table by the linker.
78 */
79#define MACHINE_START(_type,_name)			\
80static const struct machine_desc __mach_desc_##_type	\
81 __used							\
82 __section(".arch.info.init") = {			\
83	.nr		= MACH_TYPE_##_type,		\
84	.name		= _name,
85
86#define MACHINE_END				\
87};
88
89#define DT_MACHINE_START(_name, _namestr)		\
90static const struct machine_desc __mach_desc_##_name	\
91 __used							\
92 __section(".arch.info.init") = {			\
93	.nr		= ~0,				\
94	.name		= _namestr,
95
96#endif