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 #if __ARM_ARCH >= 6 9 extern vm_offset_t irqstack; 10 extern vm_offset_t undstack; 11 extern vm_offset_t abtstack; 12 #else 13 struct pv_addr; 14 extern struct pv_addr irqstack; 15 extern struct pv_addr undstack; 16 extern struct pv_addr abtstack; 17 #endif 18 19 /* Define various stack sizes in pages */ 20 #define IRQ_STACK_SIZE 1 21 #define ABT_STACK_SIZE 1 22 #define UND_STACK_SIZE 1 23 24 /* misc prototypes used by the many arm machdeps */ 25 struct trapframe; 26 void arm_lock_cache_line(vm_offset_t); 27 void init_proc0(vm_offset_t kstack); 28 void halt(void); 29 void abort_handler(struct trapframe *, int ); 30 void set_stackptrs(int cpu); 31 void undefinedinstruction_bounce(struct trapframe *); 32 33 /* Early boot related helper functions */ 34 struct arm_boot_params; 35 vm_offset_t default_parse_boot_param(struct arm_boot_params *abp); 36 vm_offset_t fake_preload_metadata(struct arm_boot_params *abp, 37 void *dtb_ptr, size_t dtb_size); 38 vm_offset_t parse_boot_param(struct arm_boot_params *abp); 39 void arm_parse_fdt_bootargs(void); 40 void arm_print_kenv(void); 41 42 void arm_generic_initclocks(void); 43 int arm_get_vfpstate(struct thread *td, void *args); 44 45 /* Board-specific attributes */ 46 void board_set_serial(uint64_t); 47 void board_set_revision(uint32_t); 48 49 int arm_predict_branch(void *, u_int, register_t, register_t *, 50 u_int (*)(void*, int), u_int (*)(void*, vm_offset_t, u_int*)); 51 52 #ifdef PLATFORM 53 typedef void delay_func(int, void *); 54 void arm_set_delay(delay_func *, void *); 55 #endif 56 57 #ifdef EFI 58 struct efi_map_header; 59 struct mem_region; 60 void arm_add_efi_map_entries(struct efi_map_header *efihdr, 61 struct mem_region *mr, int *mrcnt); 62 #endif 63 64 /* 65 * Symbols created by ldscript.arm which are accessible in the kernel as global 66 * symbols. They have uint8 type because they mark the byte location where the 67 * corresponding data starts or ends (in the end case, it's the next byte 68 * following the data, so the data size is end-start). These are listed below 69 * in the order they occur within the kernel (i.e., the address of each variable 70 * should be greater than any of the ones before it). 71 */ 72 extern uint8_t _start; /* Kernel entry point in locore.S */ 73 extern uint8_t _etext; /* text segment end */ 74 extern uint8_t _extab_start; /* unwind table start */ 75 extern uint8_t _exidx_start; /* unwind index start */ 76 extern uint8_t _exidx_end; /* unwind index end */ 77 extern uint8_t _start_ctors; /* ctors data start */ 78 extern uint8_t _stop_ctors; /* ctors data end */ 79 extern uint8_t _edata; /* data segment end */ 80 extern uint8_t __bss_start; /* bss segment start */ 81 extern uint8_t _ebss; /* bss segment end */ 82 extern uint8_t _end; /* End of kernel (text+ctors+unwind+data+bss) */ 83 84 #endif /* !_MACHINE_MACHDEP_H_ */ 85