1 /* $NetBSD: machdep.h,v 1.5 2023/06/12 19:04:14 skrll Exp $ */ 2 3 /*- 4 * Copyright (c) 2022 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nick Hudson 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _RISCV_MACHDEP_H_ 33 #define _RISCV_MACHDEP_H_ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: machdep.h,v 1.5 2023/06/12 19:04:14 skrll Exp $"); 37 38 #include <sys/proc.h> 39 #include <sys/lwp.h> 40 #include <sys/siginfo.h> 41 42 static inline paddr_t 43 riscv_kern_vtophys(vaddr_t va) 44 { 45 extern unsigned long kern_vtopdiff; 46 47 return va - kern_vtopdiff; 48 } 49 50 static inline vaddr_t 51 riscv_kern_phystov(paddr_t pa) 52 { 53 extern unsigned long kern_vtopdiff; 54 55 return pa + kern_vtopdiff; 56 } 57 58 #define KERN_VTOPHYS(va) riscv_kern_vtophys((vaddr_t)va) 59 #define KERN_PHYSTOV(pa) riscv_kern_phystov((paddr_t)pa) 60 61 extern paddr_t physical_start; 62 extern paddr_t physical_end; 63 64 void uartputc(int); 65 int uartgetc(void); 66 67 paddr_t init_mmu(paddr_t); 68 void init_riscv(register_t, paddr_t); 69 70 void riscv_timer_frequency_set(uint32_t); // which header? 71 uint32_t 72 riscv_timer_frequency_get(void); // which header? 73 void riscv_timer_register(void (*timerfn)(void)); 74 void riscv_intr_set_handler(void (*intr_handler)(struct trapframe *, 75 register_t, register_t, register_t)); 76 77 void riscv_timer_init(void); 78 int riscv_timer_intr(void *arg); 79 80 void pt_dump(void (*)(const char *, ...)); 81 82 83 #endif /* _RISCV_MACHDEP_H_ */ 84