alpha.h revision 1.41
1 /* $NetBSD: alpha.h,v 1.41 2020/09/27 23:16:10 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 bool alpha_is_qemu; 71 extern u_long cpu_implver; /* from IMPLVER instruction */ 72 extern u_long cpu_amask; /* from AMASK instruction */ 73 extern int bootdev_debug; 74 extern int alpha_fp_sync_complete; 75 extern int alpha_unaligned_print, alpha_unaligned_fix, alpha_unaligned_sigbus; 76 77 void XentArith(uint64_t, uint64_t, uint64_t); /* MAGIC */ 78 void XentIF(uint64_t, uint64_t, uint64_t); /* MAGIC */ 79 void XentInt(uint64_t, uint64_t, uint64_t); /* MAGIC */ 80 void XentMM(uint64_t, uint64_t, uint64_t); /* MAGIC */ 81 void XentRestart(void); /* MAGIC */ 82 void XentSys(uint64_t, uint64_t, uint64_t); /* MAGIC */ 83 void XentUna(uint64_t, uint64_t, uint64_t); /* MAGIC */ 84 void alpha_init(u_long, u_long, u_long, u_long, u_long); 85 void ast(struct trapframe *); 86 int badaddr(void *, size_t); 87 int badaddr_read(void *, size_t, void *); 88 uint64_t console_restart(struct trapframe *); 89 void do_sir(void); 90 void exception_return(void); /* MAGIC */ 91 void alpha_kthread_backstop(void); /* MAGIC */ 92 void frametoreg(const struct trapframe *, struct reg *); 93 void init_bootstrap_console(void); 94 void init_prom_interface(unsigned long, struct rpb *); 95 void interrupt(unsigned long, unsigned long, unsigned long, 96 struct trapframe *); 97 void machine_check(unsigned long, struct trapframe *, unsigned long, 98 unsigned long); 99 uint64_t hwrpb_checksum(void); 100 void hwrpb_restart_setup(void); 101 void regdump(struct trapframe *); 102 void regtoframe(const struct reg *, struct trapframe *); 103 void savectx(struct pcb *); 104 void trap(unsigned long, unsigned long, unsigned long, unsigned long, 105 struct trapframe *); 106 void trap_init(void); 107 void enable_nsio_ide(bus_space_tag_t); 108 char * dot_conv(unsigned long); 109 110 extern const pcu_ops_t fpu_ops; 111 112 void fpu_state_load(struct lwp *, u_int); 113 void fpu_state_save(struct lwp *); 114 void fpu_state_release(struct lwp *); 115 116 static __inline bool 117 fpu_valid_p(struct lwp *l) 118 { 119 return pcu_valid_p(&fpu_ops, l); 120 } 121 122 static __inline void 123 fpu_load(void) 124 { 125 pcu_load(&fpu_ops); 126 } 127 128 static __inline void 129 fpu_save(lwp_t *l) 130 { 131 pcu_save(&fpu_ops, l); 132 } 133 134 static __inline void 135 fpu_discard(lwp_t *l, bool valid_p) 136 { 137 pcu_discard(&fpu_ops, l, valid_p); 138 } 139 140 void alpha_patch(bool); 141 142 /* Multiprocessor glue; cpu.c */ 143 144 struct cpu_info; 145 int cpu_iccb_send(long, const char *); 146 void cpu_iccb_receive(void); 147 void cpu_hatch(struct cpu_info *); 148 void cpu_halt(void) __attribute__((__noreturn__)); 149 void cpu_spinup_trampoline(void); /* MAGIC */ 150 void cpu_pause(unsigned long); 151 void cpu_resume(unsigned long); 152 #if defined(DDB) 153 void cpu_debug_dump(void); 154 #endif 155 156 /* IEEE and VAX FP completion */ 157 158 void alpha_sts(int, s_float *); /* MAGIC */ 159 void alpha_stt(int, t_float *); /* MAGIC */ 160 void alpha_lds(int, s_float *); /* MAGIC */ 161 void alpha_ldt(int, t_float *); /* MAGIC */ 162 163 uint64_t alpha_read_fpcr(void); /* MAGIC */ 164 void alpha_write_fpcr(uint64_t); /* MAGIC */ 165 166 uint64_t alpha_read_fp_c(struct lwp *); 167 void alpha_write_fp_c(struct lwp *, uint64_t); 168 169 int alpha_fp_complete(u_long, u_long, struct lwp *, uint64_t *); 170 171 /* Security sensitive rate limiting printf */ 172 173 void rlprintf(struct timeval *t, const char *fmt, ...); 174 175 #endif /* _KERNEL */ 176 #endif /* _ALPHA_H_ */ 177
Indexes created Tue Sep 30 20:09:53 GMT 2025