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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/arm/include/machdep.h
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/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */

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#ifndef _MACHDEP_BOOT_MACHDEP_H_

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#define _MACHDEP_BOOT_MACHDEP_H_

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/* Structs that need to be initialised by initarm */

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extern vm_offset_t irqstack;

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extern vm_offset_t undstack;

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extern vm_offset_t abtstack;

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/* Define various stack sizes in pages */

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#define IRQ_STACK_SIZE	1

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#define ABT_STACK_SIZE	1

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#define UND_STACK_SIZE	1

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/* misc prototypes used by the many arm machdeps */

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struct trapframe;

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void init_proc0(vm_offset_t kstack);

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void halt(void);

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void abort_handler(struct trapframe *, int );

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void set_stackptrs(int cpu);

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void undefinedinstruction_bounce(struct trapframe *);

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/* Early boot related helper functions */

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struct arm_boot_params;

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vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);

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vm_offset_t fake_preload_metadata(struct arm_boot_params *abp,

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    void *dtb_ptr, size_t dtb_size);

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vm_offset_t parse_boot_param(struct arm_boot_params *abp);

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void arm_parse_fdt_bootargs(void);

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void arm_print_kenv(void);

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int arm_get_vfpstate(struct thread *td, void *args);

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/* Board-specific attributes */

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void board_set_serial(uint64_t);

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void board_set_revision(uint32_t);

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int arm_predict_branch(void *, u_int, register_t, register_t *,

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    u_int (*)(void*, int), u_int (*)(void*, vm_offset_t, u_int*));

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#ifdef PLATFORM

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typedef void delay_func(int, void *);

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void arm_set_delay(delay_func *, void *);

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#endif

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#ifdef EFI

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struct efi_map_header;

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struct mem_region;

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void arm_add_efi_map_entries(struct efi_map_header *efihdr,

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    struct mem_region *mr, int *mrcnt);

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#endif

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#ifdef SOCDEV_PA

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/*

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 * The virtual address SOCDEV_PA is mapped at.

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 */

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extern uintptr_t socdev_va;

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#endif

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/*

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 * Symbols created by ldscript.arm which are accessible in the kernel as global

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 * symbols. They have uint8 type because they mark the byte location where the

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 * corresponding data starts or ends (in the end case, it's the next byte

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 * following the data, so the data size is end-start).  These are listed below

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 * in the order they occur within the kernel (i.e., the address of each variable

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 * should be greater than any of the ones before it).

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 */

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extern uint8_t _start;		/* Kernel entry point in locore.S */

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extern uint8_t _etext;		/* text segment end */

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extern uint8_t _extab_start;	/* unwind table start */

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extern uint8_t _exidx_start;	/* unwind index start */

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extern uint8_t _exidx_end;	/* unwind index end */

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extern uint8_t _start_ctors;	/* ctors data start */

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extern uint8_t _stop_ctors;	/* ctors data end */

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extern uint8_t _edata;		/* data segment end */

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extern uint8_t __bss_start;	/* bss segment start */

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extern uint8_t _ebss;		/* bss segment end */

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extern uint8_t _end;		/* End of kernel (text+ctors+unwind+data+bss) */

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#endif /* !_MACHINE_MACHDEP_H_ */

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