1 /* $NetBSD: machdep.h,v 1.19 2024/02/07 04:20:26 msaitoh Exp $ */ 2 3 /* 4 * Copyright (c) 2017 Ryo Shimizu 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _AARCH64_MACHDEP_H_ 30 #define _AARCH64_MACHDEP_H_ 31 32 #include <sys/proc.h> 33 #include <sys/lwp.h> 34 #include <sys/siginfo.h> 35 36 // initarm_common 37 #include <machine/bootconfig.h> 38 39 struct boot_physmem; 40 41 static inline paddr_t 42 aarch64_kern_vtophys(vaddr_t va) 43 { 44 extern u_long kern_vtopdiff; 45 46 return va - kern_vtopdiff; 47 } 48 49 static inline vaddr_t 50 aarch64_kern_phystov(paddr_t pa) 51 { 52 extern u_long kern_vtopdiff; 53 54 return pa + kern_vtopdiff; 55 } 56 57 #define KERN_VTOPHYS(va) aarch64_kern_vtophys(va) 58 #define KERN_PHYSTOV(pa) aarch64_kern_phystov(pa) 59 60 extern paddr_t physical_start; 61 extern paddr_t physical_end; 62 extern vaddr_t module_start; 63 extern vaddr_t module_end; 64 65 extern void (*cpu_reset_address0)(void); 66 extern void (*cpu_reset_address)(void); 67 extern void (*cpu_powerdown_address)(void); 68 69 extern char *booted_kernel; 70 71 /* 72 * note that we use void * as all the platforms have different ideas on what 73 * the structure is 74 */ 75 vaddr_t initarm(void *); 76 77 vaddr_t initarm_common(vaddr_t, vsize_t, const struct boot_physmem *, size_t); 78 void cpu_kernel_vm_init(paddr_t, psize_t); 79 void uartputc(int); 80 81 void parse_mi_bootargs(char *); 82 void dumpsys(void); 83 84 void cpu_startup_hook(void); 85 void cpu_startup_default(void); 86 87 struct trapframe; 88 89 /* fault.c */ 90 void data_abort_handler(struct trapframe *, uint32_t); 91 92 /* trap.c */ 93 void lwp_trampoline(void); 94 void configure_cpu_traps(void); 95 void cpu_dosoftints(void); 96 void cpu_switchto_softint(struct lwp *, int); 97 void dosoftints(void); 98 int fetch_arm_insn(uint64_t, uint64_t, uint32_t *); 99 void trap_doast(struct trapframe *); 100 101 void trap_el1t_sync(struct trapframe *); 102 void trap_el1t_irq(struct trapframe *); 103 void trap_el1t_fiq(struct trapframe *); 104 void trap_el1t_error(struct trapframe *); 105 void trap_el1h_sync(struct trapframe *); 106 void trap_el1h_fiq(struct trapframe *); 107 void trap_el1h_error(struct trapframe *); 108 void trap_el0_sync(struct trapframe *); 109 void trap_el0_fiq(struct trapframe *); 110 void trap_el0_error(struct trapframe *); 111 void trap_el0_32sync(struct trapframe *); 112 void trap_el0_32fiq(struct trapframe *); 113 void trap_el0_32error(struct trapframe *); 114 void cpu_irq(struct trapframe *); 115 void cpu_fiq(struct trapframe *); 116 117 /* cpu_onfault */ 118 int cpu_set_onfault(struct faultbuf *) __returns_twice; 119 void cpu_jump_onfault(struct trapframe *, const struct faultbuf *, int); 120 121 #if defined(_KERNEL) 122 static inline void 123 cpu_unset_onfault(void) 124 { 125 curlwp->l_md.md_onfault = NULL; 126 } 127 128 static inline void 129 cpu_enable_onfault(struct faultbuf *fb) 130 { 131 curlwp->l_md.md_onfault = fb; 132 } 133 134 static inline struct faultbuf * 135 cpu_disable_onfault(void) 136 { 137 struct faultbuf * const fb = curlwp->l_md.md_onfault; 138 if (fb != NULL) 139 curlwp->l_md.md_onfault = NULL; 140 return fb; 141 } 142 #endif 143 144 /* exec_machdep.c */ 145 void aarch64_setregs_ptrauth(struct lwp *, bool); 146 147 /* fpu.c */ 148 void fpu_attach(struct cpu_info *); 149 struct fpreg; 150 void load_fpregs(const struct fpreg *); 151 void save_fpregs(struct fpreg *); 152 153 #ifdef TRAP_SIGDEBUG 154 #define do_trapsignal(l, signo, code, addr, trap) \ 155 do_trapsignal1(__func__, __LINE__, tf, l, signo, code, addr, trap) 156 #else 157 #define do_trapsignal(l, signo, code, addr, trap) \ 158 do_trapsignal1(l, signo, code, addr, trap) 159 #endif 160 161 void do_trapsignal1( 162 #ifdef TRAP_SIGDEBUG 163 const char *func, size_t line, struct trapframe *tf, 164 #endif 165 struct lwp *l, int signo, int code, void *addr, int trap); 166 167 const char *eclass_trapname(uint32_t); 168 169 #include <sys/pcu.h> 170 171 extern const pcu_ops_t pcu_fpu_ops; 172 173 static inline bool 174 fpu_used_p(lwp_t *l) 175 { 176 return pcu_valid_p(&pcu_fpu_ops, l); 177 } 178 179 static inline void 180 fpu_save(lwp_t *l) 181 { 182 pcu_save(&pcu_fpu_ops, l); 183 } 184 185 static inline void 186 fpu_load(lwp_t *l) 187 { 188 pcu_load(&pcu_fpu_ops); 189 } 190 191 static inline void 192 fpu_discard(lwp_t *l, bool usesw) 193 { 194 pcu_discard(&pcu_fpu_ops, l, usesw); 195 } 196 197 #endif /* _AARCH64_MACHDEP_H_ */ 198
Indexes created Wed Sep 24 05:09:52 GMT 2025