1 /*- 2 * Copyright (c) 2013 Andrew Turner <andrew@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef _MACHINE_MACHDEP_H_ 28 #define _MACHINE_MACHDEP_H_ 29 30 #ifdef _KERNEL 31 32 struct arm64_bootparams { 33 vm_offset_t modulep; 34 vm_offset_t kern_stack; 35 vm_paddr_t kern_ttbr0; 36 int boot_el; /* EL the kernel booted from */ 37 int pad; 38 }; 39 40 enum arm64_bus { 41 ARM64_BUS_NONE, 42 ARM64_BUS_FDT, 43 ARM64_BUS_ACPI, 44 }; 45 46 extern enum arm64_bus arm64_bus_method; 47 48 void dbg_init(void); 49 bool has_hyp(void); 50 bool in_vhe(void); 51 void initarm(struct arm64_bootparams *); 52 vm_offset_t parse_boot_param(struct arm64_bootparams *abp); 53 #ifdef FDT 54 void parse_fdt_bootargs(void); 55 #endif 56 int memory_mapping_mode(vm_paddr_t pa); 57 extern void (*pagezero)(void *); 58 59 #ifdef SOCDEV_PA 60 /* 61 * The virtual address SOCDEV_PA is mapped at. 62 * Only valid while the early pagetables are valid. 63 */ 64 extern uintptr_t socdev_va; 65 #endif 66 67 #endif /* _KERNEL */ 68 69 #endif /* _MACHINE_MACHDEP_H_ */ 70