machdep.h revision 1.5
1 /* $NetBSD: machdep.h,v 1.5 2018/09/15 19:47:48 jakllsch Exp $ */ 2 3 /* 4 * Copyright (c) 2017 Ryo Shimizu <ryo (at) nerv.org> 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 63 extern void (*cpu_reset_address0)(void); 64 extern void (*cpu_reset_address)(void); 65 extern void (*cpu_powerdown_address)(void); 66 67 extern char *booted_kernel; 68 69 #ifdef MULTIPROCESSOR 70 extern u_int arm_cpu_max; 71 #endif 72 73 vaddr_t initarm_common(vaddr_t, vsize_t, const struct boot_physmem *, size_t); 74 void cpu_kernel_vm_init(paddr_t, psize_t); 75 76 void parse_mi_bootargs(char *); 77 void dumpsys(void); 78 79 struct trapframe; 80 81 /* fault.c */ 82 void data_abort_handler(struct trapframe *, uint32_t); 83 84 /* trap.c */ 85 void lwp_trampoline(void); 86 void cpu_dosoftints(void); 87 void cpu_switchto_softint(struct lwp *, int); 88 void dosoftints(void); 89 void trap_doast(struct trapframe *); 90 91 void trap_el1t_sync(struct trapframe *); 92 void trap_el1t_irq(struct trapframe *); 93 void trap_el1t_fiq(struct trapframe *); 94 void trap_el1t_error(struct trapframe *); 95 void trap_el1h_sync(struct trapframe *); 96 void trap_el1h_fiq(struct trapframe *); 97 void trap_el1h_error(struct trapframe *); 98 void trap_el0_sync(struct trapframe *); 99 void trap_el0_fiq(struct trapframe *); 100 void trap_el0_error(struct trapframe *); 101 void trap_el0_32sync(struct trapframe *); 102 void trap_el0_32fiq(struct trapframe *); 103 void trap_el0_32error(struct trapframe *); 104 void interrupt(struct trapframe *); 105 106 void ucas_ras_check(struct trapframe *); 107 108 /* cpu_onfault */ 109 int cpu_set_onfault(struct faultbuf *) __returns_twice; 110 void cpu_jump_onfault(struct trapframe *, const struct faultbuf *, int); 111 112 #if defined(_KERNEL) 113 static inline void 114 cpu_unset_onfault(void) 115 { 116 curlwp->l_md.md_onfault = NULL; 117 } 118 119 static inline void 120 cpu_enable_onfault(struct faultbuf *fb) 121 { 122 curlwp->l_md.md_onfault = fb; 123 } 124 125 static inline struct faultbuf * 126 cpu_disable_onfault(void) 127 { 128 struct faultbuf * const fb = curlwp->l_md.md_onfault; 129 if (fb != NULL) 130 curlwp->l_md.md_onfault = NULL; 131 return fb; 132 } 133 #endif 134 135 /* fpu.c */ 136 void fpu_attach(struct cpu_info *); 137 struct fpreg; 138 void load_fpregs(struct fpreg *); 139 void save_fpregs(struct fpreg *); 140 141 #ifdef TRAP_SIGDEBUG 142 #define do_trapsignal(l, signo, code, addr, trap) \ 143 do_trapsignal1(__func__, __LINE__, tf, l, signo, code, addr, trap) 144 #else 145 #define do_trapsignal(l, signo, code, addr, trap) \ 146 do_trapsignal1(l, signo, code, addr, trap) 147 #endif 148 149 void do_trapsignal1( 150 #ifdef TRAP_SIGDEBUG 151 const char *func, size_t line, struct trapframe *tf, 152 #endif 153 struct lwp *l, int signo, int code, void *addr, int trap); 154 155 const char *eclass_trapname(uint32_t); 156 157 #include <sys/pcu.h> 158 159 extern const pcu_ops_t pcu_fpu_ops; 160 161 static inline bool 162 fpu_used_p(lwp_t *l) 163 { 164 return pcu_valid_p(&pcu_fpu_ops, l); 165 } 166 167 static inline void 168 fpu_save(lwp_t *l) 169 { 170 pcu_save(&pcu_fpu_ops, l); 171 } 172 173 static inline void 174 fpu_load(lwp_t *l) 175 { 176 pcu_load(&pcu_fpu_ops); 177 } 178 179 static inline void 180 fpu_discard(lwp_t *l, bool usesw) 181 { 182 pcu_discard(&pcu_fpu_ops, l, usesw); 183 } 184 185 #endif /* _AARCH64_MACHDEP_H_ */ 186
Indexes created Wed Oct 01 19:09:53 GMT 2025