machdep.h revision 261565
1/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */ 2/* $FreeBSD: head/sys/arm/include/machdep.h 261565 2014-02-06 20:35:33Z andrew $ */ 3 4#ifndef _MACHDEP_BOOT_MACHDEP_H_ 5#define _MACHDEP_BOOT_MACHDEP_H_ 6 7/* Structs that need to be initialised by initarm */ 8struct pv_addr; 9extern struct pv_addr irqstack; 10extern struct pv_addr undstack; 11extern 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 */ 19struct trapframe; 20void arm_lock_cache_line(vm_offset_t); 21void init_proc0(vm_offset_t kstack); 22void halt(void); 23void data_abort_handler(struct trapframe *); 24void prefetch_abort_handler(struct trapframe *); 25void set_stackptrs(int cpu); 26void undefinedinstruction_bounce(struct trapframe *); 27 28/* Early boot related helper functions */ 29struct arm_boot_params; 30vm_offset_t default_parse_boot_param(struct arm_boot_params *abp); 31vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp); 32vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp); 33vm_offset_t fake_preload_metadata(struct arm_boot_params *abp); 34vm_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 * - initarm_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 initarm_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 */ 64void initarm_early_init(void); 65int initarm_devmap_init(void); 66vm_offset_t initarm_lastaddr(void); 67void initarm_gpio_init(void); 68void initarm_late_init(void); 69 70/* Board-specific attributes */ 71void board_set_serial(uint64_t); 72void board_set_revision(uint32_t); 73 74/* Setup standard arrays */ 75void arm_dump_avail_init(vm_paddr_t, vm_offset_t, size_t); 76 77#endif /* !_MACHINE_MACHDEP_H_ */ 78