1// Copyright 2004-2017 The OpenSSL Project Authors. All Rights Reserved. 2// 3// Licensed under the Apache License 2.0 (the "License"). You may not use 4// this file except in compliance with the License. You can obtain a copy 5// in the file LICENSE in the source distribution or at 6// https://www.openssl.org/source/license.html 7// Works on all IA-64 platforms: Linux, HP-UX, Win64i... 8// On Win64i compile with ias.exe. 9.text 10 11#if defined(_HPUX_SOURCE) && !defined(_LP64) 12#define ADDP addp4 13#else 14#define ADDP add 15#endif 16 17.global OPENSSL_cpuid_setup# 18.proc OPENSSL_cpuid_setup# 19OPENSSL_cpuid_setup: 20{ .mib; br.ret.sptk.many b0 };; 21.endp OPENSSL_cpuid_setup# 22 23.global OPENSSL_rdtsc# 24.proc OPENSSL_rdtsc# 25OPENSSL_rdtsc: 26{ .mib; mov r8=ar.itc 27 br.ret.sptk.many b0 };; 28.endp OPENSSL_rdtsc# 29 30.global OPENSSL_atomic_add# 31.proc OPENSSL_atomic_add# 32.align 32 33OPENSSL_atomic_add: 34{ .mii; ld4 r2=[r32] 35 nop.i 0 36 nop.i 0 };; 37.Lspin: 38{ .mii; mov ar.ccv=r2 39 add r8=r2,r33 40 mov r3=r2 };; 41{ .mmi; mf;; 42 cmpxchg4.acq r2=[r32],r8,ar.ccv 43 nop.i 0 };; 44{ .mib; cmp.ne p6,p0=r2,r3 45 nop.i 0 46(p6) br.dpnt .Lspin };; 47{ .mib; nop.m 0 48 sxt4 r8=r8 49 br.ret.sptk.many b0 };; 50.endp OPENSSL_atomic_add# 51 52// Returns a structure comprising pointer to the top of stack of 53// the caller and pointer beyond backing storage for the current 54// register frame. The latter is required, because it might be 55// insufficient to wipe backing storage for the current frame 56// (as this procedure does), one might have to go further, toward 57// higher addresses to reach for whole "retroactively" saved 58// context... 59.global OPENSSL_wipe_cpu# 60.proc OPENSSL_wipe_cpu# 61.align 32 62OPENSSL_wipe_cpu: 63 .prologue 64 .fframe 0 65 .save ar.pfs,r2 66 .save ar.lc,r3 67{ .mib; alloc r2=ar.pfs,0,96,0,96 68 mov r3=ar.lc 69 brp.loop.imp .L_wipe_top,.L_wipe_end-16 70 };; 71{ .mii; mov r9=ar.bsp 72 mov r8=pr 73 mov ar.lc=96 };; 74 .body 75{ .mii; add r9=96*8-8,r9 76 mov ar.ec=1 };; 77 78// One can sweep double as fast, but then we can't guarantee 79// that backing storage is wiped... 80.L_wipe_top: 81{ .mfi; st8 [r9]=r0,-8 82 mov f127=f0 83 mov r127=r0 } 84{ .mfb; nop.m 0 85 nop.f 0 86 br.ctop.sptk .L_wipe_top };; 87.L_wipe_end: 88 89{ .mfi; mov r11=r0 90 mov f6=f0 91 mov r14=r0 } 92{ .mfi; mov r15=r0 93 mov f7=f0 94 mov r16=r0 } 95{ .mfi; mov r17=r0 96 mov f8=f0 97 mov r18=r0 } 98{ .mfi; mov r19=r0 99 mov f9=f0 100 mov r20=r0 } 101{ .mfi; mov r21=r0 102 mov f10=f0 103 mov r22=r0 } 104{ .mfi; mov r23=r0 105 mov f11=f0 106 mov r24=r0 } 107{ .mfi; mov r25=r0 108 mov f12=f0 109 mov r26=r0 } 110{ .mfi; mov r27=r0 111 mov f13=f0 112 mov r28=r0 } 113{ .mfi; mov r29=r0 114 mov f14=f0 115 mov r30=r0 } 116{ .mfi; mov r31=r0 117 mov f15=f0 118 nop.i 0 } 119{ .mfi; mov f16=f0 } 120{ .mfi; mov f17=f0 } 121{ .mfi; mov f18=f0 } 122{ .mfi; mov f19=f0 } 123{ .mfi; mov f20=f0 } 124{ .mfi; mov f21=f0 } 125{ .mfi; mov f22=f0 } 126{ .mfi; mov f23=f0 } 127{ .mfi; mov f24=f0 } 128{ .mfi; mov f25=f0 } 129{ .mfi; mov f26=f0 } 130{ .mfi; mov f27=f0 } 131{ .mfi; mov f28=f0 } 132{ .mfi; mov f29=f0 } 133{ .mfi; mov f30=f0 } 134{ .mfi; add r9=96*8+8,r9 135 mov f31=f0 136 mov pr=r8,0x1ffff } 137{ .mib; mov r8=sp 138 mov ar.lc=r3 139 br.ret.sptk b0 };; 140.endp OPENSSL_wipe_cpu# 141 142.global OPENSSL_cleanse# 143.proc OPENSSL_cleanse# 144OPENSSL_cleanse: 145{ .mib; cmp.eq p6,p0=0,r33 // len==0 146 ADDP r32=0,r32 147(p6) br.ret.spnt b0 };; 148{ .mib; and r2=7,r32 149 cmp.leu p6,p0=15,r33 // len>=15 150(p6) br.cond.dptk .Lot };; 151 152.Little: 153{ .mib; st1 [r32]=r0,1 154 cmp.ltu p6,p7=1,r33 } // len>1 155{ .mbb; add r33=-1,r33 // len-- 156(p6) br.cond.dptk .Little 157(p7) br.ret.sptk.many b0 };; 158 159.Lot: 160{ .mib; cmp.eq p6,p0=0,r2 161(p6) br.cond.dptk .Laligned };; 162{ .mmi; st1 [r32]=r0,1;; 163 and r2=7,r32 } 164{ .mib; add r33=-1,r33 165 br .Lot };; 166 167.Laligned: 168{ .mmi; st8 [r32]=r0,8 169 and r2=-8,r33 // len&~7 170 add r33=-8,r33 };; // len-=8 171{ .mib; cmp.ltu p6,p0=8,r2 // ((len+8)&~7)>8 172(p6) br.cond.dptk .Laligned };; 173 174{ .mbb; cmp.eq p6,p7=r0,r33 175(p7) br.cond.dpnt .Little 176(p6) br.ret.sptk.many b0 };; 177.endp OPENSSL_cleanse# 178 179.global CRYPTO_memcmp# 180.proc CRYPTO_memcmp# 181.align 32 182.skip 16 183CRYPTO_memcmp: 184 .prologue 185{ .mib; mov r8=0 186 cmp.eq p6,p0=0,r34 // len==0? 187(p6) br.ret.spnt b0 };; 188 .save ar.pfs,r2 189{ .mib; alloc r2=ar.pfs,3,5,0,8 190 .save ar.lc,r3 191 mov r3=ar.lc 192 brp.loop.imp .Loop_cmp_ctop,.Loop_cmp_cend-16 193 } 194{ .mib; sub r10=r34,r0,1 195 .save pr,r9 196 mov r9=pr };; 197{ .mii; ADDP r16=0,r32 198 mov ar.lc=r10 199 mov ar.ec=4 } 200{ .mib; ADDP r17=0,r33 201 mov pr.rot=1<<16 };; 202 203.Loop_cmp_ctop: 204{ .mib; (p16) ld1 r32=[r16],1 205 (p18) xor r34=r34,r38 } 206{ .mib; (p16) ld1 r36=[r17],1 207 (p19) or r8=r8,r35 208 br.ctop.sptk .Loop_cmp_ctop };; 209.Loop_cmp_cend: 210 211{ .mib; cmp.ne p6,p0=0,r8 212 mov ar.lc=r3 };; 213{ .mib; 214(p6) mov r8=1 215 mov pr=r9,0x1ffff 216 br.ret.sptk.many b0 };; 217.endp CRYPTO_memcmp# 218 219.global OPENSSL_instrument_bus# 220.proc OPENSSL_instrument_bus# 221OPENSSL_instrument_bus: 222{ .mmi; mov r2=r33 223 ADDP r32=0,r32 } 224{ .mmi; mov r8=ar.itc;; 225 mov r10=r0 226 mov r9=r8 };; 227 228{ .mmi; fc r32;; 229 ld4 r8=[r32] };; 230{ .mmi; mf 231 mov ar.ccv=r8 232 add r8=r8,r10 };; 233{ .mmi; cmpxchg4.acq r3=[r32],r8,ar.ccv 234 };; 235.Loop: 236{ .mmi; mov r8=ar.itc;; 237 sub r10=r8,r9 // diff=tick-lasttick 238 mov r9=r8 };; // lasttick=tick 239{ .mmi; fc r32;; 240 ld4 r8=[r32] };; 241{ .mmi; mf 242 mov ar.ccv=r8 243 add r8=r8,r10 };; 244{ .mmi; cmpxchg4.acq r3=[r32],r8,ar.ccv 245 add r33=-1,r33 246 add r32=4,r32 };; 247{ .mib; cmp4.ne p6,p0=0,r33 248(p6) br.cond.dptk .Loop };; 249 250{ .mib; sub r8=r2,r33 251 br.ret.sptk.many b0 };; 252.endp OPENSSL_instrument_bus# 253 254.global OPENSSL_instrument_bus2# 255.proc OPENSSL_instrument_bus2# 256OPENSSL_instrument_bus2: 257{ .mmi; mov r2=r33 // put aside cnt 258 ADDP r32=0,r32 } 259{ .mmi; mov r8=ar.itc;; 260 mov r10=r0 261 mov r9=r8 };; 262 263{ .mmi; fc r32;; 264 ld4 r8=[r32] };; 265{ .mmi; mf 266 mov ar.ccv=r8 267 add r8=r8,r10 };; 268{ .mmi; cmpxchg4.acq r3=[r32],r8,ar.ccv 269 };; 270 271{ .mmi; mov r8=ar.itc;; 272 sub r10=r8,r9 273 mov r9=r8 };; 274.Loop2: 275{ .mmi; mov r11=r10 // lastdiff=diff 276 add r34=-1,r34 };; // --max 277{ .mmi; fc r32;; 278 ld4 r8=[r32] 279 cmp4.eq p6,p0=0,r34 };; 280{ .mmi; mf 281 mov ar.ccv=r8 282 add r8=r8,r10 };; 283{ .mmb; cmpxchg4.acq r3=[r32],r8,ar.ccv 284(p6) br.cond.spnt .Ldone2 };; 285 286{ .mmi; mov r8=ar.itc;; 287 sub r10=r8,r9 // diff=tick-lasttick 288 mov r9=r8 };; // lasttick=tick 289{ .mmi; cmp.ne p6,p0=r10,r11;; // diff!=lastdiff 290(p6) add r33=-1,r33 };; // conditional --cnt 291{ .mib; cmp4.ne p7,p0=0,r33 292(p6) add r32=4,r32 // conditional ++out 293(p7) br.cond.dptk .Loop2 };; 294.Ldone2: 295{ .mib; sub r8=r2,r33 296 br.ret.sptk.many b0 };; 297.endp OPENSSL_instrument_bus2# 298
