alpha.h revision 1.39
1 /* $NetBSD: alpha.h,v 1.39 2020/09/03 02:09:09 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_s_float { 45 uint32_t i; 46 uint32_t frac: 23, 47 exp: 8, 48 sign: 1; 49 } s_float; 50 51 typedef union alpha_t_float { 52 uint64_t i; 53 uint64_t frac: 52, 54 exp: 11, 55 sign: 1; 56 } t_float; 57 58 #ifdef _KERNEL 59 60 #include <sys/bus.h> 61 62 #include <sys/pcu.h> 63 64 struct pcb; 65 struct lwp; 66 struct reg; 67 struct rpb; 68 struct trapframe; 69 70 extern u_long cpu_implver; /* from IMPLVER instruction */ 71 extern u_long cpu_amask; /* from AMASK instruction */ 72 extern int bootdev_debug; 73 extern int alpha_fp_sync_complete; 74 extern int alpha_unaligned_print, alpha_unaligned_fix, alpha_unaligned_sigbus; 75 76 void XentArith(uint64_t, uint64_t, uint64_t); /* MAGIC */ 77 void XentIF(uint64_t, uint64_t, uint64_t); /* MAGIC */ 78 void XentInt(uint64_t, uint64_t, uint64_t); /* MAGIC */ 79 void XentMM(uint64_t, uint64_t, uint64_t); /* MAGIC */ 80 void XentRestart(void); /* MAGIC */ 81 void XentSys(uint64_t, uint64_t, uint64_t); /* MAGIC */ 82 void XentUna(uint64_t, uint64_t, uint64_t); /* MAGIC */ 83 void alpha_init(u_long, u_long, u_long, u_long, u_long); 84 void ast(struct trapframe *); 85 int badaddr(void *, size_t); 86 int badaddr_read(void *, size_t, void *); 87 uint64_t console_restart(struct trapframe *); 88 void do_sir(void); 89 void exception_return(void); /* MAGIC */ 90 void frametoreg(const struct trapframe *, struct reg *); 91 void init_bootstrap_console(void); 92 void init_prom_interface(unsigned long, struct rpb *); 93 void interrupt(unsigned long, unsigned long, unsigned long, 94 struct trapframe *); 95 void machine_check(unsigned long, struct trapframe *, unsigned long, 96 unsigned long); 97 uint64_t hwrpb_checksum(void); 98 void hwrpb_restart_setup(void); 99 void regdump(struct trapframe *); 100 void regtoframe(const struct reg *, struct trapframe *); 101 void savectx(struct pcb *); 102 void trap(unsigned long, unsigned long, unsigned long, unsigned long, 103 struct trapframe *); 104 void trap_init(void); 105 void enable_nsio_ide(bus_space_tag_t); 106 char * dot_conv(unsigned long); 107 108 extern const pcu_ops_t fpu_ops; 109 110 void fpu_state_load(struct lwp *, u_int); 111 void fpu_state_save(struct lwp *); 112 void fpu_state_release(struct lwp *); 113 114 static __inline bool 115 fpu_valid_p(struct lwp *l) 116 { 117 return pcu_valid_p(&fpu_ops, l); 118 } 119 120 static __inline void 121 fpu_load(void) 122 { 123 pcu_load(&fpu_ops); 124 } 125 126 static __inline void 127 fpu_save(lwp_t *l) 128 { 129 pcu_save(&fpu_ops, l); 130 } 131 132 static __inline void 133 fpu_discard(lwp_t *l, bool valid_p) 134 { 135 pcu_discard(&fpu_ops, l, valid_p); 136 } 137 138 void alpha_patch(bool); 139 140 /* Multiprocessor glue; cpu.c */ 141 142 struct cpu_info; 143 int cpu_iccb_send(long, const char *); 144 void cpu_iccb_receive(void); 145 void cpu_hatch(struct cpu_info *); 146 void cpu_halt(void) __attribute__((__noreturn__)); 147 void cpu_spinup_trampoline(void); /* MAGIC */ 148 void cpu_pause(unsigned long); 149 void cpu_resume(unsigned long); 150 #if defined(DDB) 151 void cpu_debug_dump(void); 152 #endif 153 154 /* IEEE and VAX FP completion */ 155 156 void alpha_sts(int, s_float *); /* MAGIC */ 157 void alpha_stt(int, t_float *); /* MAGIC */ 158 void alpha_lds(int, s_float *); /* MAGIC */ 159 void alpha_ldt(int, t_float *); /* MAGIC */ 160 161 uint64_t alpha_read_fpcr(void); /* MAGIC */ 162 void alpha_write_fpcr(uint64_t); /* MAGIC */ 163 164 uint64_t alpha_read_fp_c(struct lwp *); 165 void alpha_write_fp_c(struct lwp *, uint64_t); 166 167 int alpha_fp_complete(u_long, u_long, struct lwp *, uint64_t *); 168 169 /* Security sensitive rate limiting printf */ 170 171 void rlprintf(struct timeval *t, const char *fmt, ...); 172 173 #endif /* _KERNEL */ 174 #endif /* _ALPHA_H_ */ 175
Indexes created Thu Oct 02 14:10:14 GMT 2025