1 /* $NetBSD: alpha.h,v 1.48 2025/03/16 19:27:30 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 37 * 38 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 39 */ 40 41 #ifndef _ALPHA_H_ 42 #define _ALPHA_H_ 43 44 typedef union alpha_f_float { 45 uint32_t i; 46 uint32_t frac_hi: 7, 47 exp: 8, 48 sign: 1, 49 frac_lo: 16; 50 } f_float; 51 52 typedef union alpha_s_float { 53 uint32_t i; 54 uint32_t frac: 23, 55 exp: 8, 56 sign: 1; 57 } s_float; 58 59 typedef union alpha_t_float { 60 uint64_t i; 61 uint64_t frac: 52, 62 exp: 11, 63 sign: 1; 64 } t_float; 65 66 #ifdef _KERNEL 67 68 #include <sys/bus.h> 69 70 #include <sys/pcu.h> 71 72 struct pcb; 73 struct lwp; 74 struct reg; 75 struct rpb; 76 struct trapframe; 77 78 extern bool alpha_is_qemu; 79 extern int alpha_use_cctr; 80 extern u_long cpu_implver; /* from IMPLVER instruction */ 81 extern u_long cpu_amask; /* from AMASK instruction */ 82 extern int bootdev_debug; 83 extern int alpha_fp_sync_complete; 84 extern int alpha_fp_complete_debug; 85 extern int alpha_unaligned_print, alpha_unaligned_fix, alpha_unaligned_sigbus; 86 extern void (*alpha_delay_fn)(unsigned long); 87 88 void XentArith(uint64_t, uint64_t, uint64_t); /* MAGIC */ 89 void XentIF(uint64_t, uint64_t, uint64_t); /* MAGIC */ 90 void XentInt(uint64_t, uint64_t, uint64_t); /* MAGIC */ 91 void XentMM(uint64_t, uint64_t, uint64_t); /* MAGIC */ 92 void XentRestart(void); /* MAGIC */ 93 void XentSys(uint64_t, uint64_t, uint64_t); /* MAGIC */ 94 void XentUna(uint64_t, uint64_t, uint64_t); /* MAGIC */ 95 void alpha_init(u_long, u_long, u_long, u_long, u_long); 96 void alpha_page_physload_sheltered(u_long, u_long, u_long, u_long); 97 void ast(struct trapframe *); 98 int badaddr(void *, size_t); 99 int badaddr_read(void *, size_t, void *); 100 uint64_t console_restart(struct trapframe *); 101 void do_sir(void); 102 void exception_return(void); /* MAGIC */ 103 void alpha_kthread_backstop(void); /* MAGIC */ 104 void frametoreg(const struct trapframe *, struct reg *); 105 void init_bootstrap_console(void); 106 void init_prom_interface(unsigned long, struct rpb *); 107 void interrupt(unsigned long, unsigned long, unsigned long, 108 struct trapframe *); 109 void machine_check(unsigned long, struct trapframe *, unsigned long, 110 unsigned long); 111 uint64_t hwrpb_checksum(void); 112 void hwrpb_restart_setup(void); 113 void regdump(struct trapframe *); 114 void regtoframe(const struct reg *, struct trapframe *); 115 void savectx(struct pcb *); 116 void trap(unsigned long, unsigned long, unsigned long, unsigned long, 117 struct trapframe *); 118 void trap_init(void); 119 void enable_nsio_ide(bus_space_tag_t); 120 121 extern const pcu_ops_t fpu_ops; 122 123 void fpu_state_load(struct lwp *, u_int); 124 void fpu_state_save(struct lwp *); 125 void fpu_state_release(struct lwp *); 126 127 static __inline bool 128 fpu_valid_p(struct lwp *l) 129 { 130 return pcu_valid_p(&fpu_ops, l); 131 } 132 133 static __inline void 134 fpu_load(void) 135 { 136 pcu_load(&fpu_ops); 137 } 138 139 static __inline void 140 fpu_save(lwp_t *l) 141 { 142 pcu_save(&fpu_ops, l); 143 } 144 145 static __inline void 146 fpu_discard(lwp_t *l, bool valid_p) 147 { 148 pcu_discard(&fpu_ops, l, valid_p); 149 } 150 151 void alpha_patch(bool); 152 153 /* Multiprocessor glue; cpu.c */ 154 155 struct cpu_info; 156 int cpu_iccb_send(long, const char *); 157 void cpu_iccb_receive(void); 158 void cpu_hatch(struct cpu_info *); 159 void cpu_halt(void) __attribute__((__noreturn__)); 160 void cpu_spinup_trampoline(void); /* MAGIC */ 161 void cpu_pause(unsigned long); 162 void cpu_resume(unsigned long); 163 #if defined(DDB) 164 void cpu_debug_dump(void); 165 #endif 166 167 /* IEEE and VAX FP completion */ 168 169 void alpha_sts(int, s_float *); /* MAGIC */ 170 void alpha_stt(int, t_float *); /* MAGIC */ 171 void alpha_lds(int, s_float *); /* MAGIC */ 172 void alpha_ldt(int, t_float *); /* MAGIC */ 173 174 uint64_t alpha_read_fpcr(void); /* MAGIC */ 175 void alpha_write_fpcr(uint64_t); /* MAGIC */ 176 177 uint64_t alpha_read_fp_c(struct lwp *); 178 void alpha_write_fp_c(struct lwp *, uint64_t); 179 180 void alpha_fp_init(void); 181 int alpha_fp_complete(u_long, u_long, struct lwp *, uint64_t *); 182 int alpha_fp_complete_at(u_long, struct lwp *, uint64_t *); 183 184 /* Security sensitive rate limiting printf */ 185 186 void rlprintf(struct timeval *t, const char *fmt, ...); 187 188 #endif /* _KERNEL */ 189 #endif /* _ALPHA_H_ */ 190
Indexes created Sat Sep 20 22:09:52 GMT 2025