locore.h revision 1.3.2.3
1 1.3.2.3 yamt /* $NetBSD: locore.h,v 1.3.2.3 2010/08/11 22:52:47 yamt Exp $ */ 2 1.3.2.2 yamt 3 1.3.2.2 yamt /* 4 1.3.2.2 yamt * Copyright (c) 1996-2002 Eduardo Horvath 5 1.3.2.2 yamt * All rights reserved. 6 1.3.2.2 yamt * 7 1.3.2.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.3.2.2 yamt * modification, are permitted provided that the following conditions 9 1.3.2.2 yamt * are met: 10 1.3.2.2 yamt * 1. Redistributions of source code must retain the above copyright 11 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer. 12 1.3.2.2 yamt * 13 1.3.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 14 1.3.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 1.3.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 1.3.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 17 1.3.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 1.3.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 1.3.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 1.3.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 1.3.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 1.3.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 1.3.2.2 yamt * SUCH DAMAGE. 24 1.3.2.2 yamt * 25 1.3.2.2 yamt */ 26 1.3.2.2 yamt 27 1.3.2.2 yamt #undef CURLWP 28 1.3.2.2 yamt #undef CPCB 29 1.3.2.2 yamt #undef FPLWP 30 1.3.2.2 yamt 31 1.3.2.2 yamt #define CURLWP (CPUINFO_VA + CI_CURLWP) 32 1.3.2.2 yamt #define CPCB (CPUINFO_VA + CI_CPCB) 33 1.3.2.2 yamt #define FPLWP (CPUINFO_VA + CI_FPLWP) 34 1.3.2.2 yamt 35 1.3.2.2 yamt /* 36 1.3.2.2 yamt * Here are some defines to try to maintain consistency but still 37 1.3.2.2 yamt * support 32-and 64-bit compilers. 38 1.3.2.2 yamt */ 39 1.3.2.2 yamt #ifdef _LP64 40 1.3.2.2 yamt /* reg that points to base of data/text segment */ 41 1.3.2.2 yamt #define BASEREG %g4 42 1.3.2.2 yamt /* first constants for storage allocation */ 43 1.3.2.2 yamt #define LNGSZ 8 44 1.3.2.2 yamt #define LNGSHFT 3 45 1.3.2.2 yamt #define PTRSZ 8 46 1.3.2.2 yamt #define PTRSHFT 3 47 1.3.2.2 yamt #define POINTER .xword 48 1.3.2.2 yamt #define ULONG .xword 49 1.3.2.2 yamt /* Now instructions to load/store pointers & long ints */ 50 1.3.2.2 yamt #define LDLNG ldx 51 1.3.2.2 yamt #define LDULNG ldx 52 1.3.2.2 yamt #define STLNG stx 53 1.3.2.2 yamt #define STULNG stx 54 1.3.2.2 yamt #define LDPTR ldx 55 1.3.2.2 yamt #define LDPTRA ldxa 56 1.3.2.2 yamt #define STPTR stx 57 1.3.2.2 yamt #define STPTRA stxa 58 1.3.2.2 yamt #define CASPTR casxa 59 1.3.2.2 yamt /* Now something to calculate the stack bias */ 60 1.3.2.2 yamt #define STKB BIAS 61 1.3.2.2 yamt #define CCCR %xcc 62 1.3.2.2 yamt #else 63 1.3.2.2 yamt #define BASEREG %g0 64 1.3.2.2 yamt #define LNGSZ 4 65 1.3.2.2 yamt #define LNGSHFT 2 66 1.3.2.2 yamt #define PTRSZ 4 67 1.3.2.2 yamt #define PTRSHFT 2 68 1.3.2.2 yamt #define POINTER .word 69 1.3.2.2 yamt #define ULONG .word 70 1.3.2.2 yamt /* Instructions to load/store pointers & long ints */ 71 1.3.2.2 yamt #define LDLNG ldsw 72 1.3.2.2 yamt #define LDULNG lduw 73 1.3.2.2 yamt #define STLNG stw 74 1.3.2.2 yamt #define STULNG stw 75 1.3.2.2 yamt #define LDPTR lduw 76 1.3.2.2 yamt #define LDPTRA lduwa 77 1.3.2.2 yamt #define STPTR stw 78 1.3.2.2 yamt #define STPTRA stwa 79 1.3.2.2 yamt #define CASPTR casa 80 1.3.2.2 yamt #define STKB 0 81 1.3.2.2 yamt #define CCCR %icc 82 1.3.2.2 yamt #endif 83 1.3.2.2 yamt 84 1.3.2.2 yamt /* Give this real authority: reset the machine */ 85 1.3.2.2 yamt #define NOTREACHED sir 86 1.3.2.2 yamt 87 1.3.2.2 yamt /* if < 32, copy by bytes, memcpy, kcopy, ... */ 88 1.3.2.2 yamt #define BCOPY_SMALL 32 89 1.3.2.2 yamt 90 1.3.2.2 yamt /* use as needed to align things on longword boundaries */ 91 1.3.2.2 yamt #define _ALIGN .align 8 92 1.3.2.2 yamt #define ICACHE_ALIGN .align 32 93 1.3.2.3 yamt 94 1.3.2.3 yamt /* A few convenient abbreviations for trapframe fields. */ 95 1.3.2.3 yamt #define TF_G TF_GLOBAL 96 1.3.2.3 yamt #define TF_O TF_OUT 97 1.3.2.3 yamt #define TF_L TF_LOCAL 98 1.3.2.3 yamt #define TF_I TF_IN 99 1.3.2.3 yamt 100 1.3.2.3 yamt /* Let us use same syntax as C code */ 101 1.3.2.3 yamt #define Debugger() ta 1; nop 102 1.3.2.3 yamt 103 1.3.2.3 yamt 104 1.3.2.3 yamt /* 105 1.3.2.3 yamt * This macro will clear out a cache line before an explicit 106 1.3.2.3 yamt * access to that location. It's mostly used to make certain 107 1.3.2.3 yamt * loads bypassing the D$ do not get stale D$ data. 108 1.3.2.3 yamt * 109 1.3.2.3 yamt * It uses a register with the address to clear and a temporary 110 1.3.2.3 yamt * which is destroyed. 111 1.3.2.3 yamt */ 112 1.3.2.3 yamt #ifdef DCACHE_BUG 113 1.3.2.3 yamt #define DLFLUSH(a,t) \ 114 1.3.2.3 yamt andn a, 0x3f, t; \ 115 1.3.2.3 yamt stxa %g0, [ t ] ASI_DCACHE_TAG; \ 116 1.3.2.3 yamt membar #Sync 117 1.3.2.3 yamt /* The following can be used if the pointer is 32-byte aligned */ 118 1.3.2.3 yamt #define DLFLUSH2(t) \ 119 1.3.2.3 yamt stxa %g0, [ t ] ASI_DCACHE_TAG; \ 120 1.3.2.3 yamt membar #Sync 121 1.3.2.3 yamt #else 122 1.3.2.3 yamt #define DLFLUSH(a,t) 123 1.3.2.3 yamt #define DLFLUSH2(t) 124 1.3.2.3 yamt #endif 125 1.3.2.3 yamt 126 1.3.2.3 yamt 127 1.3.2.3 yamt /* 128 1.3.2.3 yamt * Combine 2 regs -- used to convert 64-bit ILP32 129 1.3.2.3 yamt * values to LP64. 130 1.3.2.3 yamt */ 131 1.3.2.3 yamt #define COMBINE(r1, r2, d) \ 132 1.3.2.3 yamt clruw r2; \ 133 1.3.2.3 yamt sllx r1, 32, d; \ 134 1.3.2.3 yamt or d, r2, d 135 1.3.2.3 yamt 136 1.3.2.3 yamt /* 137 1.3.2.3 yamt * Split 64-bit value in 1 reg into high and low halves. 138 1.3.2.3 yamt * Used for ILP32 return values. 139 1.3.2.3 yamt */ 140 1.3.2.3 yamt #define SPLIT(r0, r1) \ 141 1.3.2.3 yamt srl r0, 0, r1; \ 142 1.3.2.3 yamt srlx r0, 32, r0 143 1.3.2.3 yamt 144 1.3.2.3 yamt 145 1.3.2.3 yamt /* 146 1.3.2.3 yamt * A handy macro for maintaining instrumentation counters. 147 1.3.2.3 yamt * Note that this clobbers %o0, %o1 and %o2. Normal usage is 148 1.3.2.3 yamt * something like: 149 1.3.2.3 yamt * foointr: 150 1.3.2.3 yamt * TRAP_SETUP(...) ! makes %o registers safe 151 1.3.2.3 yamt * INCR(_C_LABEL(cnt)+V_FOO) ! count a foo 152 1.3.2.3 yamt */ 153 1.3.2.3 yamt #define INCR(what) \ 154 1.3.2.3 yamt sethi %hi(what), %o0; \ 155 1.3.2.3 yamt or %o0, %lo(what), %o0; \ 156 1.3.2.3 yamt 99: \ 157 1.3.2.3 yamt lduw [%o0], %o1; \ 158 1.3.2.3 yamt add %o1, 1, %o2; \ 159 1.3.2.3 yamt casa [%o0] ASI_P, %o1, %o2; \ 160 1.3.2.3 yamt cmp %o1, %o2; \ 161 1.3.2.3 yamt bne,pn %icc, 99b; \ 162 1.3.2.3 yamt nop 163 1.3.2.3 yamt 164 1.3.2.3 yamt /* 165 1.3.2.3 yamt * A couple of handy macros to save and restore globals to/from 166 1.3.2.3 yamt * locals. Since udivrem uses several globals, and it's called 167 1.3.2.3 yamt * from vsprintf, we need to do this before and after doing a printf. 168 1.3.2.3 yamt */ 169 1.3.2.3 yamt #define GLOBTOLOC \ 170 1.3.2.3 yamt mov %g1, %l1; \ 171 1.3.2.3 yamt mov %g2, %l2; \ 172 1.3.2.3 yamt mov %g3, %l3; \ 173 1.3.2.3 yamt mov %g4, %l4; \ 174 1.3.2.3 yamt mov %g5, %l5; \ 175 1.3.2.3 yamt mov %g6, %l6; \ 176 1.3.2.3 yamt mov %g7, %l7 177 1.3.2.3 yamt 178 1.3.2.3 yamt #define LOCTOGLOB \ 179 1.3.2.3 yamt mov %l1, %g1; \ 180 1.3.2.3 yamt mov %l2, %g2; \ 181 1.3.2.3 yamt mov %l3, %g3; \ 182 1.3.2.3 yamt mov %l4, %g4; \ 183 1.3.2.3 yamt mov %l5, %g5; \ 184 1.3.2.3 yamt mov %l6, %g6; \ 185 1.3.2.3 yamt mov %l7, %g7 186 1.3.2.3 yamt 187 1.3.2.3 yamt /* Load strings address into register; NOTE: hidden local label 99 */ 188 1.3.2.3 yamt #define LOAD_ASCIZ(reg, s) \ 189 1.3.2.3 yamt set 99f, reg ; \ 190 1.3.2.3 yamt .data ; \ 191 1.3.2.3 yamt 99: .asciz s ; \ 192 1.3.2.3 yamt _ALIGN ; \ 193 1.3.2.3 yamt .text 194 1.3.2.3 yamt 195 1.3.2.3 yamt /* 196 1.3.2.3 yamt * Handy stack conversion macros. 197 1.3.2.3 yamt * They correctly switch to requested stack type 198 1.3.2.3 yamt * regardless of the current stack. 199 1.3.2.3 yamt */ 200 1.3.2.3 yamt 201 1.3.2.3 yamt #define TO_STACK64(size) \ 202 1.3.2.3 yamt save %sp, size, %sp; \ 203 1.3.2.3 yamt add %sp, -BIAS, %o0; /* Convert to 64-bits */ \ 204 1.3.2.3 yamt andcc %sp, 1, %g0; /* 64-bit stack? */ \ 205 1.3.2.3 yamt movz %icc, %o0, %sp 206 1.3.2.3 yamt 207 1.3.2.3 yamt #define TO_STACK32(size) \ 208 1.3.2.3 yamt save %sp, size, %sp; \ 209 1.3.2.3 yamt add %sp, +BIAS, %o0; /* Convert to 32-bits */ \ 210 1.3.2.3 yamt andcc %sp, 1, %g0; /* 64-bit stack? */ \ 211 1.3.2.3 yamt movnz %icc, %o0, %sp 212 1.3.2.3 yamt 213 1.3.2.3 yamt #ifdef _LP64 214 1.3.2.3 yamt #define STACKFRAME(size) TO_STACK64(size) 215 1.3.2.3 yamt #else 216 1.3.2.3 yamt #define STACKFRAME(size) TO_STACK32(size) 217 1.3.2.3 yamt #endif 218 1.3.2.3 yamt 219 1.3.2.3 yamt /* 220 1.3.2.3 yamt * Primitives 221 1.3.2.3 yamt */ 222 1.3.2.3 yamt #ifdef ENTRY 223 1.3.2.3 yamt #undef ENTRY 224 1.3.2.3 yamt #endif 225 1.3.2.3 yamt 226 1.3.2.3 yamt #ifdef GPROF 227 1.3.2.3 yamt .globl _mcount 228 1.3.2.3 yamt #define ENTRY(x) \ 229 1.3.2.3 yamt .globl _C_LABEL(x); .proc 1; .type _C_LABEL(x),@function; \ 230 1.3.2.3 yamt _C_LABEL(x): ; \ 231 1.3.2.3 yamt .data; \ 232 1.3.2.3 yamt .align 8; \ 233 1.3.2.3 yamt 0: .uaword 0; .uaword 0; \ 234 1.3.2.3 yamt .text; \ 235 1.3.2.3 yamt save %sp, -CC64FSZ, %sp; \ 236 1.3.2.3 yamt sethi %hi(0b), %o0; \ 237 1.3.2.3 yamt call _mcount; \ 238 1.3.2.3 yamt or %o0, %lo(0b), %o0; \ 239 1.3.2.3 yamt restore 240 1.3.2.3 yamt #else 241 1.3.2.3 yamt #define ENTRY(x) .globl _C_LABEL(x); .proc 1; \ 242 1.3.2.3 yamt .type _C_LABEL(x),@function; _C_LABEL(x): 243 1.3.2.3 yamt #endif 244 1.3.2.3 yamt #define ALTENTRY(x) .globl _C_LABEL(x); _C_LABEL(x): 245 1.3.2.3 yamt 246 1.3.2.3 yamt 247
Indexes created Wed Oct 29 18:09:52 GMT 2025