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 */ 7 extern vm_offset_t irqstack; 8 extern vm_offset_t undstack; 9 extern 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 */ 17 struct trapframe; 18 void init_proc0(vm_offset_t kstack); 19 void halt(void); 20 void abort_handler(struct trapframe *, int ); 21 void set_stackptrs(int cpu); 22 void undefinedinstruction_bounce(struct trapframe *); 23 24 /* Early boot related helper functions */ 25 struct arm_boot_params; 26 vm_offset_t default_parse_boot_param(struct arm_boot_params *abp); 27 vm_offset_t fake_preload_metadata(struct arm_boot_params *abp, 28 void *dtb_ptr, size_t dtb_size); 29 vm_offset_t parse_boot_param(struct arm_boot_params *abp); 30 void arm_parse_fdt_bootargs(void); 31 void arm_print_kenv(void); 32 33 int arm_get_vfpstate(struct thread *td, void *args); 34 35 /* Board-specific attributes */ 36 void board_set_serial(uint64_t); 37 void board_set_revision(uint32_t); 38 39 int 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 43 typedef void delay_func(int, void *); 44 void arm_set_delay(delay_func *, void *); 45 #endif 46 47 #ifdef EFI 48 struct efi_map_header; 49 struct mem_region; 50 void 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 */ 62 extern uint8_t _start; /* Kernel entry point in locore.S */ 63 extern uint8_t _etext; /* text segment end */ 64 extern uint8_t _extab_start; /* unwind table start */ 65 extern uint8_t _exidx_start; /* unwind index start */ 66 extern uint8_t _exidx_end; /* unwind index end */ 67 extern uint8_t _start_ctors; /* ctors data start */ 68 extern uint8_t _stop_ctors; /* ctors data end */ 69 extern uint8_t _edata; /* data segment end */ 70 extern uint8_t __bss_start; /* bss segment start */ 71 extern uint8_t _ebss; /* bss segment end */ 72 extern uint8_t _end; /* End of kernel (text+ctors+unwind+data+bss) */ 73 74 #endif /* !_MACHINE_MACHDEP_H_ */ 75