1/* 2 * Copyright (c) 2003-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 25 unchanged lines hidden (view full) --- 34#if FULL_SYSTEM 35#include "arch/sparc/vtophys.hh" 36#include "mem/vport.hh" 37#endif 38 39namespace SparcISA { 40 41 |
42// The caller uses %o0-%05 for the first 6 arguments even if their floating 43// point. Double precision floating point values take two registers/args. 44// Quads, structs, and unions are passed as pointers. All arguments beyond 45// the sixth are passed on the stack past the 16 word window save area, 46// space for the struct/union return pointer, and space reserved for the 47// first 6 arguments which the caller may use but doesn't have to. |
48uint64_t 49getArgument(ThreadContext *tc, int &number, uint16_t size, bool fp) 50{ 51#if FULL_SYSTEM 52 const int NumArgumentRegs = 6; 53 if (number < NumArgumentRegs) { 54 return tc->readIntReg(8 + number); 55 } else { --- 11 unchanged lines hidden (view full) --- 67 68void 69copyMiscRegs(ThreadContext *src, ThreadContext *dest) 70{ 71 72 uint8_t tl = src->readMiscRegNoEffect(MISCREG_TL); 73 74 // Read all the trap level dependent registers and save them off |
75 for (int i = 1; i <= MaxTL; i++) { |
76 src->setMiscRegNoEffect(MISCREG_TL, i); 77 dest->setMiscRegNoEffect(MISCREG_TL, i); 78 |
79 dest->setMiscRegNoEffect(MISCREG_TT, 80 src->readMiscRegNoEffect(MISCREG_TT)); 81 dest->setMiscRegNoEffect(MISCREG_TPC, 82 src->readMiscRegNoEffect(MISCREG_TPC)); 83 dest->setMiscRegNoEffect(MISCREG_TNPC, 84 src->readMiscRegNoEffect(MISCREG_TNPC)); 85 dest->setMiscRegNoEffect(MISCREG_TSTATE, 86 src->readMiscRegNoEffect(MISCREG_TSTATE)); |
87 } 88 89 // Save off the traplevel 90 dest->setMiscRegNoEffect(MISCREG_TL, tl); 91 src->setMiscRegNoEffect(MISCREG_TL, tl); 92 93 94 // ASRs |
95// dest->setMiscRegNoEffect(MISCREG_Y, 96// src->readMiscRegNoEffect(MISCREG_Y)); 97// dest->setMiscRegNoEffect(MISCREG_CCR, 98// src->readMiscRegNoEffect(MISCREG_CCR)); 99 dest->setMiscRegNoEffect(MISCREG_ASI, 100 src->readMiscRegNoEffect(MISCREG_ASI)); 101 dest->setMiscRegNoEffect(MISCREG_TICK, 102 src->readMiscRegNoEffect(MISCREG_TICK)); 103 dest->setMiscRegNoEffect(MISCREG_FPRS, 104 src->readMiscRegNoEffect(MISCREG_FPRS)); 105 dest->setMiscRegNoEffect(MISCREG_SOFTINT, 106 src->readMiscRegNoEffect(MISCREG_SOFTINT)); 107 dest->setMiscRegNoEffect(MISCREG_TICK_CMPR, 108 src->readMiscRegNoEffect(MISCREG_TICK_CMPR)); 109 dest->setMiscRegNoEffect(MISCREG_STICK, 110 src->readMiscRegNoEffect(MISCREG_STICK)); 111 dest->setMiscRegNoEffect(MISCREG_STICK_CMPR, 112 src->readMiscRegNoEffect(MISCREG_STICK_CMPR)); |
113 114 // Priv Registers |
115 dest->setMiscRegNoEffect(MISCREG_TICK, 116 src->readMiscRegNoEffect(MISCREG_TICK)); 117 dest->setMiscRegNoEffect(MISCREG_TBA, 118 src->readMiscRegNoEffect(MISCREG_TBA)); 119 dest->setMiscRegNoEffect(MISCREG_PSTATE, 120 src->readMiscRegNoEffect(MISCREG_PSTATE)); 121 dest->setMiscRegNoEffect(MISCREG_PIL, 122 src->readMiscRegNoEffect(MISCREG_PIL)); 123 dest->setMiscReg(MISCREG_CWP, 124 src->readMiscRegNoEffect(MISCREG_CWP)); 125// dest->setMiscRegNoEffect(MISCREG_CANSAVE, 126// src->readMiscRegNoEffect(MISCREG_CANSAVE)); 127// dest->setMiscRegNoEffect(MISCREG_CANRESTORE, 128// src->readMiscRegNoEffect(MISCREG_CANRESTORE)); 129// dest->setMiscRegNoEffect(MISCREG_OTHERWIN, 130// src->readMiscRegNoEffect(MISCREG_OTHERWIN)); 131// dest->setMiscRegNoEffect(MISCREG_CLEANWIN, 132// src->readMiscRegNoEffect(MISCREG_CLEANWIN)); 133// dest->setMiscRegNoEffect(MISCREG_WSTATE, 134// src->readMiscRegNoEffect(MISCREG_WSTATE)); |
135 dest->setMiscReg(MISCREG_GL, src->readMiscRegNoEffect(MISCREG_GL)); 136 137 // Hyperprivilged registers |
138 dest->setMiscRegNoEffect(MISCREG_HPSTATE, 139 src->readMiscRegNoEffect(MISCREG_HPSTATE)); 140 dest->setMiscRegNoEffect(MISCREG_HINTP, 141 src->readMiscRegNoEffect(MISCREG_HINTP)); 142 dest->setMiscRegNoEffect(MISCREG_HTBA, 143 src->readMiscRegNoEffect(MISCREG_HTBA)); |
144 dest->setMiscRegNoEffect(MISCREG_STRAND_STS_REG, 145 src->readMiscRegNoEffect(MISCREG_STRAND_STS_REG)); 146 dest->setMiscRegNoEffect(MISCREG_HSTICK_CMPR, 147 src->readMiscRegNoEffect(MISCREG_HSTICK_CMPR)); 148 149 // FSR |
150 dest->setMiscRegNoEffect(MISCREG_FSR, 151 src->readMiscRegNoEffect(MISCREG_FSR)); |
152 |
153 // Strand Status Register |
154 dest->setMiscRegNoEffect(MISCREG_STRAND_STS_REG, 155 src->readMiscRegNoEffect(MISCREG_STRAND_STS_REG)); 156 157 // MMU Registers 158 dest->setMiscRegNoEffect(MISCREG_MMU_P_CONTEXT, 159 src->readMiscRegNoEffect(MISCREG_MMU_P_CONTEXT)); 160 dest->setMiscRegNoEffect(MISCREG_MMU_S_CONTEXT, 161 src->readMiscRegNoEffect(MISCREG_MMU_S_CONTEXT)); --- 37 unchanged lines hidden (view full) --- 199 src->readMiscRegNoEffect(MISCREG_QUEUE_NRES_ERROR_HEAD)); 200 dest->setMiscRegNoEffect(MISCREG_QUEUE_NRES_ERROR_TAIL, 201 src->readMiscRegNoEffect(MISCREG_QUEUE_NRES_ERROR_TAIL)); 202} 203 204void 205copyRegs(ThreadContext *src, ThreadContext *dest) 206{ |
207 // First loop through the integer registers. |
208 int old_gl = src->readMiscRegNoEffect(MISCREG_GL); 209 int old_cwp = src->readMiscRegNoEffect(MISCREG_CWP); |
210 // Globals |
211 for (int x = 0; x < MaxGL; ++x) { 212 src->setMiscReg(MISCREG_GL, x); 213 dest->setMiscReg(MISCREG_GL, x); 214 // Skip %g0 which is always zero. 215 for (int y = 1; y < 8; y++) 216 dest->setIntReg(y, src->readIntReg(y)); 217 } |
218 // Locals and ins. Outs are all also ins. |
219 for (int x = 0; x < NWindows; ++x) { 220 src->setMiscReg(MISCREG_CWP, x); 221 dest->setMiscReg(MISCREG_CWP, x); 222 for (int y = 16; y < 32; y++) 223 dest->setIntReg(y, src->readIntReg(y)); 224 } |
225 // Microcode reg and pseudo int regs (misc regs in the integer regfile). |
226 for (int y = NumIntArchRegs; y < NumIntArchRegs + NumMicroIntRegs; ++y) 227 dest->setIntReg(y, src->readIntReg(y)); 228 |
229 // Restore src's GL, CWP |
230 src->setMiscReg(MISCREG_GL, old_gl); 231 src->setMiscReg(MISCREG_CWP, old_cwp); 232 233 234 // Then loop through the floating point registers. 235 for (int i = 0; i < SparcISA::NumFloatArchRegs; ++i) { 236 dest->setFloatRegBits(i, src->readFloatRegBits(i)); 237 } --- 17 unchanged lines hidden (view full) --- 255void 256initCPU(ThreadContext *tc, int cpuId) 257{ 258 static Fault por = new PowerOnReset(); 259 if (cpuId == 0) 260 por->invoke(tc); 261} 262 |
263} // namespace SPARC_ISA |