1 /* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */ 2 /* $FreeBSD$ */ 3 4 #ifndef _MACHDEP_BOOT_MACHDEP_H_ 5 #define _MACHDEP_BOOT_MACHDEP_H_ 6 7 /* Structs that need to be initialised by initarm */ 8 extern vm_offset_t irqstack; 9 extern vm_offset_t undstack; 10 extern vm_offset_t abtstack; 11 12 /* Define various stack sizes in pages */ 13 #define IRQ_STACK_SIZE 1 14 #define ABT_STACK_SIZE 1 15 #define UND_STACK_SIZE 1 16 17 /* misc prototypes used by the many arm machdeps */ 18 struct trapframe; 19 void arm_lock_cache_line(vm_offset_t); 20 void init_proc0(vm_offset_t kstack); 21 void halt(void); 22 void abort_handler(struct trapframe *, int ); 23 void set_stackptrs(int cpu); 24 void undefinedinstruction_bounce(struct trapframe *); 25 26 /* Early boot related helper functions */ 27 struct arm_boot_params; 28 vm_offset_t default_parse_boot_param(struct arm_boot_params *abp); 29 vm_offset_t fake_preload_metadata(struct arm_boot_params *abp, 30 void *dtb_ptr, size_t dtb_size); 31 vm_offset_t parse_boot_param(struct arm_boot_params *abp); 32 void arm_parse_fdt_bootargs(void); 33 void arm_print_kenv(void); 34 35 int arm_get_vfpstate(struct thread *td, void *args); 36 37 /* Board-specific attributes */ 38 void board_set_serial(uint64_t); 39 void board_set_revision(uint32_t); 40 41 int arm_predict_branch(void *, u_int, register_t, register_t *, 42 u_int (*)(void*, int), u_int (*)(void*, vm_offset_t, u_int*)); 43 44 #ifdef PLATFORM 45 typedef void delay_func(int, void *); 46 void arm_set_delay(delay_func *, void *); 47 #endif 48 49 #ifdef EFI 50 struct efi_map_header; 51 struct mem_region; 52 void arm_add_efi_map_entries(struct efi_map_header *efihdr, 53 struct mem_region *mr, int *mrcnt); 54 #endif 55 56 /* 57 * Symbols created by ldscript.arm which are accessible in the kernel as global 58 * symbols. They have uint8 type because they mark the byte location where the 59 * corresponding data starts or ends (in the end case, it's the next byte 60 * following the data, so the data size is end-start). These are listed below 61 * in the order they occur within the kernel (i.e., the address of each variable 62 * should be greater than any of the ones before it). 63 */ 64 extern uint8_t _start; /* Kernel entry point in locore.S */ 65 extern uint8_t _etext; /* text segment end */ 66 extern uint8_t _extab_start; /* unwind table start */ 67 extern uint8_t _exidx_start; /* unwind index start */ 68 extern uint8_t _exidx_end; /* unwind index end */ 69 extern uint8_t _start_ctors; /* ctors data start */ 70 extern uint8_t _stop_ctors; /* ctors data end */ 71 extern uint8_t _edata; /* data segment end */ 72 extern uint8_t __bss_start; /* bss segment start */ 73 extern uint8_t _ebss; /* bss segment end */ 74 extern uint8_t _end; /* End of kernel (text+ctors+unwind+data+bss) */ 75 76 #endif /* !_MACHINE_MACHDEP_H_ */ 77