1 files changed, 98 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
new file mode 100644
index 000000000..eec0c0bda
--- /dev/null
+++ b/arch/arm/include/asm/mach/arch.h
@@ -0,0 +1,98 @@
+/* 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							\
+ __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