13273f292SToomas Soome /* 2199767f8SToomas Soome * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3199767f8SToomas Soome * All rights reserved. 4199767f8SToomas Soome * 5199767f8SToomas Soome * Redistribution and use in source and binary forms, with or without 6199767f8SToomas Soome * modification, are permitted provided that the following conditions 7199767f8SToomas Soome * are met: 8199767f8SToomas Soome * 1. Redistributions of source code must retain the above copyright 9199767f8SToomas Soome * notice, this list of conditions and the following disclaimer. 10199767f8SToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 11199767f8SToomas Soome * notice, this list of conditions and the following disclaimer in the 12199767f8SToomas Soome * documentation and/or other materials provided with the distribution. 13199767f8SToomas Soome * 14199767f8SToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15199767f8SToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16199767f8SToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17199767f8SToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18199767f8SToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19199767f8SToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20199767f8SToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21199767f8SToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22199767f8SToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23199767f8SToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24199767f8SToomas Soome * SUCH DAMAGE. 25199767f8SToomas Soome */ 26199767f8SToomas Soome 27f9feecc1SToomas Soome #ifndef _LIBI386_H 28f9feecc1SToomas Soome #define _LIBI386_H 29199767f8SToomas Soome 30199767f8SToomas Soome /* 31199767f8SToomas Soome * i386 fully-qualified device descriptor. 32199767f8SToomas Soome */ 330a06a804SToomas Soome struct i386_devdesc { 34e3c18722SToomas Soome struct devdesc dd; /* Must be first. */ 3576b35943SToomas Soome union { 3676b35943SToomas Soome struct { 37199767f8SToomas Soome int slice; 38199767f8SToomas Soome int partition; 39199767f8SToomas Soome off_t offset; 40199767f8SToomas Soome } biosdisk; 4176b35943SToomas Soome struct { 42199767f8SToomas Soome uint64_t pool_guid; 43199767f8SToomas Soome uint64_t root_guid; 44199767f8SToomas Soome } zfs; 45199767f8SToomas Soome } d_kind; 46199767f8SToomas Soome }; 47199767f8SToomas Soome 48199767f8SToomas Soome /* 49199767f8SToomas Soome * relocater trampoline support. 50199767f8SToomas Soome */ 51199767f8SToomas Soome struct relocate_data { 52199767f8SToomas Soome uint32_t src; 53199767f8SToomas Soome uint32_t dest; 54199767f8SToomas Soome uint32_t size; 55199767f8SToomas Soome }; 56199767f8SToomas Soome 57199767f8SToomas Soome extern void relocater(void); 58199767f8SToomas Soome 597b2aa502SToomas Soome /* 607b2aa502SToomas Soome * The relocater_data[] is fixed size array allocated in relocater_tramp.S 617b2aa502SToomas Soome */ 627b2aa502SToomas Soome extern struct relocate_data relocater_data[]; 63199767f8SToomas Soome extern uint32_t relocater_size; 64199767f8SToomas Soome 65199767f8SToomas Soome extern uint16_t relocator_ip; 66199767f8SToomas Soome extern uint16_t relocator_cs; 67199767f8SToomas Soome extern uint16_t relocator_ds; 68199767f8SToomas Soome extern uint16_t relocator_es; 69199767f8SToomas Soome extern uint16_t relocator_fs; 70199767f8SToomas Soome extern uint16_t relocator_gs; 71199767f8SToomas Soome extern uint16_t relocator_ss; 72199767f8SToomas Soome extern uint16_t relocator_sp; 73199767f8SToomas Soome extern uint32_t relocator_esi; 74199767f8SToomas Soome extern uint32_t relocator_eax; 75199767f8SToomas Soome extern uint32_t relocator_ebx; 76199767f8SToomas Soome extern uint32_t relocator_edx; 77199767f8SToomas Soome extern uint32_t relocator_ebp; 78199767f8SToomas Soome extern uint16_t relocator_a20_enabled; 79199767f8SToomas Soome 80199767f8SToomas Soome int i386_getdev(void **vdev, const char *devspec, const char **path); 81199767f8SToomas Soome char *i386_fmtdev(void *vdev); 82199767f8SToomas Soome int i386_setcurrdev(struct env_var *ev, int flags, const void *value); 83199767f8SToomas Soome 84199767f8SToomas Soome extern struct devdesc currdev; /* our current device */ 85199767f8SToomas Soome 86199767f8SToomas Soome #define MAXDEV 31 /* maximum number of distinct devices */ 87199767f8SToomas Soome #define MAXBDDEV MAXDEV 88199767f8SToomas Soome 89199767f8SToomas Soome /* exported devices XXX rename? */ 90199767f8SToomas Soome extern struct devsw bioscd; 91863275a4SToomas Soome extern struct devsw biosfd; 92863275a4SToomas Soome extern struct devsw bioshd; 93199767f8SToomas Soome extern struct devsw pxedisk; 94199767f8SToomas Soome extern struct fs_ops pxe_fsops; 95199767f8SToomas Soome 96199767f8SToomas Soome int bc_add(int biosdev); /* Register CD booted from. */ 97199767f8SToomas Soome uint32_t bd_getbigeom(int bunit); /* return geometry in bootinfo format */ 98199767f8SToomas Soome int bd_bios2unit(int biosdev); /* xlate BIOS device -> biosdisk unit */ 99863275a4SToomas Soome int bd_unit2bios(struct i386_devdesc *); /* xlate biosdisk -> BIOS device */ 100199767f8SToomas Soome int bd_getdev(struct i386_devdesc *dev); /* return dev_t for (dev) */ 101199767f8SToomas Soome 102199767f8SToomas Soome ssize_t i386_copyin(const void *src, vm_offset_t dest, const size_t len); 103199767f8SToomas Soome ssize_t i386_copyout(const vm_offset_t src, void *dest, const size_t len); 104199767f8SToomas Soome ssize_t i386_readin(const int fd, vm_offset_t dest, const size_t len); 105199767f8SToomas Soome 106199767f8SToomas Soome struct preloaded_file; 107199767f8SToomas Soome void bios_addsmapdata(struct preloaded_file *); 108199767f8SToomas Soome void bios_getsmap(void); 109199767f8SToomas Soome 110199767f8SToomas Soome void bios_getmem(void); 111199767f8SToomas Soome extern uint32_t bios_basemem; /* base memory in bytes */ 112199767f8SToomas Soome extern uint32_t bios_extmem; /* extended memory in bytes */ 113199767f8SToomas Soome extern vm_offset_t memtop; /* last address of physical memory + 1 */ 114199767f8SToomas Soome extern vm_offset_t memtop_copyin; /* memtop less heap size for the cases */ 115199767f8SToomas Soome /* when heap is at the top of */ 116199767f8SToomas Soome /* extended memory; for other cases */ 117199767f8SToomas Soome /* just the same as memtop */ 118199767f8SToomas Soome extern uint32_t high_heap_size; /* extended memory region available */ 119199767f8SToomas Soome extern vm_offset_t high_heap_base; /* for use as the heap */ 120199767f8SToomas Soome 1213273f292SToomas Soome /* 16KB buffer space for real mode data transfers. */ 1223273f292SToomas Soome #define BIO_BUFFER_SIZE 0x4000 1233273f292SToomas Soome void *bio_alloc(size_t size); 1243273f292SToomas Soome void bio_free(void *ptr, size_t size); 1253273f292SToomas Soome 126199767f8SToomas Soome void biospci_detect(void); 127199767f8SToomas Soome int biospci_find_devclass(uint32_t class, int index, uint32_t *locator); 128199767f8SToomas Soome int biospci_read_config(uint32_t locator, int offset, int width, uint32_t *val); 129199767f8SToomas Soome uint32_t biospci_locator(int8_t bus, uint8_t device, uint8_t function); 130eee59048SToomas Soome int biospci_write_config(uint32_t locator, int offset, int width, uint32_t val); 131199767f8SToomas Soome 132199767f8SToomas Soome void biosacpi_detect(void); 133*ceb3ef19SToomas Soome int comc_getspeed(int); 134199767f8SToomas Soome 135199767f8SToomas Soome int i386_autoload(void); 1368600fd4dSToomas Soome vm_offset_t i386_loadaddr(u_int type, void *data, vm_offset_t addr); 137199767f8SToomas Soome 138199767f8SToomas Soome int bi_getboothowto(char *kargs); 139199767f8SToomas Soome void bi_setboothowto(int howto); 140199767f8SToomas Soome vm_offset_t bi_copyenv(vm_offset_t addr); 141199767f8SToomas Soome int bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, 142199767f8SToomas Soome vm_offset_t *modulep, vm_offset_t *kernend); 143199767f8SToomas Soome int bi_load64(char *args, vm_offset_t addr, vm_offset_t *modulep, 144199767f8SToomas Soome vm_offset_t *kernend, int add_smap); 145199767f8SToomas Soome int bi_checkcpu(void); 146d9256fffSToomas Soome void bi_isadir(void); 147199767f8SToomas Soome 148f9feecc1SToomas Soome int mb_kernel_cmdline(struct preloaded_file *, struct devdesc *, char **); 149f9feecc1SToomas Soome void multiboot_tramp(uint32_t, vm_offset_t, vm_offset_t); 150199767f8SToomas Soome void pxe_enable(void *pxeinfo); 151f9feecc1SToomas Soome 152f9feecc1SToomas Soome #endif /* _LIBI386_H */ 153