1/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
 2
 3#ifndef _MACHDEP_BOOT_MACHDEP_H_
 4#define _MACHDEP_BOOT_MACHDEP_H_
 5
 6/* Structs that need to be initialised by initarm */
 7extern vm_offset_t irqstack;
 8extern vm_offset_t undstack;
 9extern vm_offset_t abtstack;
10
11/* Define various stack sizes in pages */
12#define IRQ_STACK_SIZE	1
13#define ABT_STACK_SIZE	1
14#define UND_STACK_SIZE	1
15
16/* misc prototypes used by the many arm machdeps */
17struct trapframe;
18void init_proc0(vm_offset_t kstack);
19void halt(void);
20void abort_handler(struct trapframe *, int );
21void set_stackptrs(int cpu);
22void undefinedinstruction_bounce(struct trapframe *);
23
24/* Early boot related helper functions */
25struct arm_boot_params;
26vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
27vm_offset_t fake_preload_metadata(struct arm_boot_params *abp,
28    void *dtb_ptr, size_t dtb_size);
29vm_offset_t parse_boot_param(struct arm_boot_params *abp);
30void arm_parse_fdt_bootargs(void);
31void arm_print_kenv(void);
32
33int arm_get_vfpstate(struct thread *td, void *args);
34
35/* Board-specific attributes */
36void board_set_serial(uint64_t);
37void board_set_revision(uint32_t);
38
39int arm_predict_branch(void *, u_int, register_t, register_t *,
40    u_int (*)(void*, int), u_int (*)(void*, vm_offset_t, u_int*));
41
42#ifdef PLATFORM
43typedef void delay_func(int, void *);
44void arm_set_delay(delay_func *, void *);
45#endif
46
47#ifdef EFI
48struct efi_map_header;
49struct mem_region;
50void arm_add_efi_map_entries(struct efi_map_header *efihdr,
51    struct mem_region *mr, int *mrcnt);
52#endif
53
54/*
55 * Symbols created by ldscript.arm which are accessible in the kernel as global
56 * symbols. They have uint8 type because they mark the byte location where the
57 * corresponding data starts or ends (in the end case, it's the next byte
58 * following the data, so the data size is end-start).  These are listed below
59 * in the order they occur within the kernel (i.e., the address of each variable
60 * should be greater than any of the ones before it).
61 */
62extern uint8_t _start;		/* Kernel entry point in locore.S */
63extern uint8_t _etext;		/* text segment end */
64extern uint8_t _extab_start;	/* unwind table start */
65extern uint8_t _exidx_start;	/* unwind index start */
66extern uint8_t _exidx_end;	/* unwind index end */
67extern uint8_t _start_ctors;	/* ctors data start */
68extern uint8_t _stop_ctors;	/* ctors data end */
69extern uint8_t _edata;		/* data segment end */
70extern uint8_t __bss_start;	/* bss segment start */
71extern uint8_t _ebss;		/* bss segment end */
72extern uint8_t _end;		/* End of kernel (text+ctors+unwind+data+bss) */
73
74#endif /* !_MACHINE_MACHDEP_H_ */