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 struct pv_addr; 9 extern struct pv_addr irqstack; 10 extern struct pv_addr undstack; 11 extern struct pv_addr abtstack; 12 13 /* Define various stack sizes in pages */ 14 #define IRQ_STACK_SIZE 1 15 #define ABT_STACK_SIZE 1 16 #define UND_STACK_SIZE 1 17 18 /* misc prototypes used by the many arm machdeps */ 19 struct trapframe; 20 void arm_lock_cache_line(vm_offset_t); 21 void init_proc0(vm_offset_t kstack); 22 void halt(void); 23 void data_abort_handler(struct trapframe *); 24 void prefetch_abort_handler(struct trapframe *); 25 void set_stackptrs(int cpu); 26 void undefinedinstruction_bounce(struct trapframe *); 27 28 /* Early boot related helper functions */ 29 struct arm_boot_params; 30 vm_offset_t default_parse_boot_param(struct arm_boot_params *abp); 31 vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp); 32 vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp); 33 vm_offset_t fake_preload_metadata(struct arm_boot_params *abp); 34 vm_offset_t parse_boot_param(struct arm_boot_params *abp); 35 36 /* 37 * Initialization functions called by the common initarm() function in 38 * arm/machdep.c (but not necessarily from the custom initarm() functions of 39 * older code). 40 * 41 * - initarm_early_init() is called very early, after parsing the boot params 42 * and after physical memory has been located and sized. 43 * 44 * - platform_devmap_init() is called as one of the last steps of early virtual 45 * memory initialization, shortly before the new page tables are installed. 46 * 47 * - initarm_lastaddr() is called after platform_devmap_init(), and must return 48 * the address of the first byte of unusable KVA space. This allows a 49 * platform to carve out of the top of the KVA space whatever reserves it 50 * needs for things like static device mapping, and this is called to get the 51 * value before calling pmap_bootstrap() which uses the value to size the 52 * available KVA. 53 * 54 * - initarm_gpio_init() is called after the static device mappings are 55 * established and just before cninit(). The intention is that the routine 56 * can do any hardware setup (such as gpio or pinmux) necessary to make the 57 * console functional. 58 * 59 * - initarm_late_init() is called just after cninit(). This is the first of 60 * the init routines that can use printf() and expect the output to appear on 61 * a standard console. 62 * 63 */ 64 void initarm_early_init(void); 65 int initarm_devmap_init(void); 66 vm_offset_t initarm_lastaddr(void); 67 void initarm_gpio_init(void); 68 void initarm_late_init(void); 69 70 /* Board-specific attributes */ 71 void board_set_serial(uint64_t); 72 void board_set_revision(uint32_t); 73 74 /* Setup standard arrays */ 75 void arm_dump_avail_init( vm_offset_t memsize, size_t max); 76 77 #endif /* !_MACHINE_MACHDEP_H_ */ 78