freebsd-dev/sys/arm/include/machdep.h
Ian Lepore e214f286f0 Declare the global kernel symbols created by ldscript.arm in arm's machdep.h,
and remove a couple scattered local declarations.

Most of these aren't referenced in C code (there are some references in
asm code), and they also aren't documented anywhere.  This helps a bit
with the latter.
2019-12-06 03:48:35 +00:00

85 lines
2.8 KiB
C

/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
/* $FreeBSD$ */
#ifndef _MACHDEP_BOOT_MACHDEP_H_
#define _MACHDEP_BOOT_MACHDEP_H_
/* Structs that need to be initialised by initarm */
#if __ARM_ARCH >= 6
extern vm_offset_t irqstack;
extern vm_offset_t undstack;
extern vm_offset_t abtstack;
#else
struct pv_addr;
extern struct pv_addr irqstack;
extern struct pv_addr undstack;
extern struct pv_addr abtstack;
#endif
/* Define various stack sizes in pages */
#define IRQ_STACK_SIZE 1
#define ABT_STACK_SIZE 1
#define UND_STACK_SIZE 1
/* misc prototypes used by the many arm machdeps */
struct trapframe;
void arm_lock_cache_line(vm_offset_t);
void init_proc0(vm_offset_t kstack);
void halt(void);
void abort_handler(struct trapframe *, int );
void set_stackptrs(int cpu);
void undefinedinstruction_bounce(struct trapframe *);
/* Early boot related helper functions */
struct arm_boot_params;
vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
vm_offset_t fake_preload_metadata(struct arm_boot_params *abp,
void *dtb_ptr, size_t dtb_size);
vm_offset_t parse_boot_param(struct arm_boot_params *abp);
void arm_parse_fdt_bootargs(void);
void arm_print_kenv(void);
void arm_generic_initclocks(void);
int arm_get_vfpstate(struct thread *td, void *args);
/* Board-specific attributes */
void board_set_serial(uint64_t);
void board_set_revision(uint32_t);
int arm_predict_branch(void *, u_int, register_t, register_t *,
u_int (*)(void*, int), u_int (*)(void*, vm_offset_t, u_int*));
#ifdef PLATFORM
typedef void delay_func(int, void *);
void arm_set_delay(delay_func *, void *);
#endif
#ifdef EFI
struct efi_map_header;
struct mem_region;
void arm_add_efi_map_entries(struct efi_map_header *efihdr,
struct mem_region *mr, int *mrcnt);
#endif
/*
* Symbols created by ldscript.arm which are accessible in the kernel as global
* symbols. They have uint8 type because they mark the byte location where the
* corresponding data starts or ends (in the end case, it's the next byte
* following the data, so the data size is end-start). These are listed below
* in the order they occur within the kernel (i.e., the address of each variable
* should be greater than any of the ones before it).
*/
extern uint8_t _start; /* Kernel entry point in locore.S */
extern uint8_t _etext; /* text segment end */
extern uint8_t _extab_start; /* unwind table start */
extern uint8_t _exidx_start; /* unwind index start */
extern uint8_t _exidx_end; /* unwind index end */
extern uint8_t _start_ctors; /* ctors data start */
extern uint8_t _stop_ctors; /* ctors data end */
extern uint8_t _edata; /* data segment end */
extern uint8_t __bss_start; /* bss segment start */
extern uint8_t _ebss; /* bss segment end */
extern uint8_t _end; /* End of kernel (text+ctors+unwind+data+bss) */
#endif /* !_MACHINE_MACHDEP_H_ */