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 * $FreeBSD$ 27 */ 28 29 #ifndef _MACHINE_MACHDEP_H_ 30 #define _MACHINE_MACHDEP_H_ 31 32 #ifdef _KERNEL 33 34 struct arm64_bootparams { 35 vm_offset_t modulep; 36 uint64_t kern_delta; 37 vm_offset_t kern_stack; 38 vm_paddr_t kern_ttbr0; 39 uint64_t hcr_el2; 40 int boot_el; /* EL the kernel booted from */ 41 int pad; 42 }; 43 44 enum arm64_bus { 45 ARM64_BUS_NONE, 46 ARM64_BUS_FDT, 47 ARM64_BUS_ACPI, 48 }; 49 50 extern enum arm64_bus arm64_bus_method; 51 52 void dbg_init(void); 53 bool has_hyp(void); 54 void initarm(struct arm64_bootparams *); 55 vm_offset_t parse_boot_param(struct arm64_bootparams *abp); 56 #ifdef FDT 57 void parse_fdt_bootargs(void); 58 #endif 59 int memory_mapping_mode(vm_paddr_t pa); 60 extern void (*pagezero)(void *); 61 62 #ifdef SOCDEV_PA 63 /* 64 * The virtual address SOCDEV_PA is mapped at. 65 * Only valid while the early pagetables are valid. 66 */ 67 extern uintptr_t socdev_va; 68 #endif 69 70 #endif /* _KERNEL */ 71 72 #endif /* _MACHINE_MACHDEP_H_ */ 73