target-mips/machine.c

   1 #include "hw/hw.h"
   2 #include "hw/boards.h"
   3
   4 #include "cpu.h"
   5
   6 static void save_tc(QEMUFile *f, TCState *tc)
   7 {
   8     int i;
   9
  10     /* Save active TC */
  11     for(i = 0; i < 32; i++)
  12         qemu_put_betls(f, &tc->gpr[i]);
  13     qemu_put_betls(f, &tc->PC);
  14     for(i = 0; i < MIPS_DSP_ACC; i++)
  15         qemu_put_betls(f, &tc->HI[i]);
  16     for(i = 0; i < MIPS_DSP_ACC; i++)
  17         qemu_put_betls(f, &tc->LO[i]);
  18     for(i = 0; i < MIPS_DSP_ACC; i++)
  19         qemu_put_betls(f, &tc->ACX[i]);
  20     qemu_put_betls(f, &tc->DSPControl);
  21     qemu_put_sbe32s(f, &tc->CP0_TCStatus);
  22     qemu_put_sbe32s(f, &tc->CP0_TCBind);
  23     qemu_put_betls(f, &tc->CP0_TCHalt);
  24     qemu_put_betls(f, &tc->CP0_TCContext);
  25     qemu_put_betls(f, &tc->CP0_TCSchedule);
  26     qemu_put_betls(f, &tc->CP0_TCScheFBack);
  27     qemu_put_sbe32s(f, &tc->CP0_Debug_tcstatus);
  28 }
  29
  30 static void save_fpu(QEMUFile *f, CPUMIPSFPUContext *fpu)
  31 {
  32     int i;
  33
  34     for(i = 0; i < 32; i++)
  35         qemu_put_be64s(f, &fpu->fpr[i].d);
  36     qemu_put_s8s(f, &fpu->fp_status.float_detect_tininess);
  37     qemu_put_s8s(f, &fpu->fp_status.float_rounding_mode);
  38     qemu_put_s8s(f, &fpu->fp_status.float_exception_flags);
  39     qemu_put_be32s(f, &fpu->fcr0);
  40     qemu_put_be32s(f, &fpu->fcr31);
  41 }
  42
  43 void cpu_save(QEMUFile *f, void *opaque)
  44 {
  45     CPUState *env = opaque;
  46     int i;
  47
  48     /* Save active TC */
  49     save_tc(f, &env->active_tc);
  50
  51     /* Save active FPU */
  52     save_fpu(f, &env->active_fpu);
  53
  54     /* Save MVP */
  55     qemu_put_sbe32s(f, &env->mvp->CP0_MVPControl);
  56     qemu_put_sbe32s(f, &env->mvp->CP0_MVPConf0);
  57     qemu_put_sbe32s(f, &env->mvp->CP0_MVPConf1);
  58
  59     /* Save TLB */
  60     qemu_put_be32s(f, &env->tlb->nb_tlb);
  61     qemu_put_be32s(f, &env->tlb->tlb_in_use);
  62     for(i = 0; i < MIPS_TLB_MAX; i++) {
  63         uint16_t flags = ((env->tlb->mmu.r4k.tlb[i].G << 10) |
  64                           (env->tlb->mmu.r4k.tlb[i].C0 << 7) |
  65                           (env->tlb->mmu.r4k.tlb[i].C1 << 4) |
  66                           (env->tlb->mmu.r4k.tlb[i].V0 << 3) |
  67                           (env->tlb->mmu.r4k.tlb[i].V1 << 2) |
  68                           (env->tlb->mmu.r4k.tlb[i].D0 << 1) |
  69                           (env->tlb->mmu.r4k.tlb[i].D1 << 0));
  70         uint8_t asid;
  71
  72         qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].VPN);
  73         qemu_put_be32s(f, &env->tlb->mmu.r4k.tlb[i].PageMask);
  74         asid = env->tlb->mmu.r4k.tlb[i].ASID;
  75         qemu_put_8s(f, &asid);
  76         qemu_put_be16s(f, &flags);
  77         qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[0]);
  78         qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[1]);
  79     }
  80
  81     /* Save CPU metastate */
  82     qemu_put_be32s(f, &env->current_tc);
  83     qemu_put_be32s(f, &env->current_fpu);
  84     qemu_put_sbe32s(f, &env->error_code);
  85     qemu_put_be32s(f, &env->hflags);
  86     qemu_put_betls(f, &env->btarget);
  87     i = env->bcond;
  88     qemu_put_sbe32s(f, &i);
  89
  90     /* Save remaining CP1 registers */
  91     qemu_put_sbe32s(f, &env->CP0_Index);
  92     qemu_put_sbe32s(f, &env->CP0_Random);
  93     qemu_put_sbe32s(f, &env->CP0_VPEControl);
  94     qemu_put_sbe32s(f, &env->CP0_VPEConf0);
  95     qemu_put_sbe32s(f, &env->CP0_VPEConf1);
  96     qemu_put_betls(f, &env->CP0_YQMask);
  97     qemu_put_betls(f, &env->CP0_VPESchedule);
  98     qemu_put_betls(f, &env->CP0_VPEScheFBack);
  99     qemu_put_sbe32s(f, &env->CP0_VPEOpt);
 100     qemu_put_betls(f, &env->CP0_EntryLo0);
 101     qemu_put_betls(f, &env->CP0_EntryLo1);
 102     qemu_put_betls(f, &env->CP0_Context);
 103     qemu_put_sbe32s(f, &env->CP0_PageMask);
 104     qemu_put_sbe32s(f, &env->CP0_PageGrain);
 105     qemu_put_sbe32s(f, &env->CP0_Wired);
 106     qemu_put_sbe32s(f, &env->CP0_SRSConf0);
 107     qemu_put_sbe32s(f, &env->CP0_SRSConf1);
 108     qemu_put_sbe32s(f, &env->CP0_SRSConf2);
 109     qemu_put_sbe32s(f, &env->CP0_SRSConf3);
 110     qemu_put_sbe32s(f, &env->CP0_SRSConf4);
 111     qemu_put_sbe32s(f, &env->CP0_HWREna);
 112     qemu_put_betls(f, &env->CP0_BadVAddr);
 113     qemu_put_sbe32s(f, &env->CP0_Count);
 114     qemu_put_betls(f, &env->CP0_EntryHi);
 115     qemu_put_sbe32s(f, &env->CP0_Compare);
 116     qemu_put_sbe32s(f, &env->CP0_Status);
 117     qemu_put_sbe32s(f, &env->CP0_IntCtl);
 118     qemu_put_sbe32s(f, &env->CP0_SRSCtl);
 119     qemu_put_sbe32s(f, &env->CP0_SRSMap);
 120     qemu_put_sbe32s(f, &env->CP0_Cause);
 121     qemu_put_betls(f, &env->CP0_EPC);
 122     qemu_put_sbe32s(f, &env->CP0_PRid);
 123     qemu_put_sbe32s(f, &env->CP0_EBase);
 124     qemu_put_sbe32s(f, &env->CP0_Config0);
 125     qemu_put_sbe32s(f, &env->CP0_Config1);
 126     qemu_put_sbe32s(f, &env->CP0_Config2);
 127     qemu_put_sbe32s(f, &env->CP0_Config3);
 128     qemu_put_sbe32s(f, &env->CP0_Config6);
 129     qemu_put_sbe32s(f, &env->CP0_Config7);
 130     qemu_put_betls(f, &env->lladdr);
 131     for(i = 0; i < 8; i++)
 132         qemu_put_betls(f, &env->CP0_WatchLo[i]);
 133     for(i = 0; i < 8; i++)
 134         qemu_put_sbe32s(f, &env->CP0_WatchHi[i]);
 135     qemu_put_betls(f, &env->CP0_XContext);
 136     qemu_put_sbe32s(f, &env->CP0_Framemask);
 137     qemu_put_sbe32s(f, &env->CP0_Debug);
 138     qemu_put_betls(f, &env->CP0_DEPC);
 139     qemu_put_sbe32s(f, &env->CP0_Performance0);
 140     qemu_put_sbe32s(f, &env->CP0_TagLo);
 141     qemu_put_sbe32s(f, &env->CP0_DataLo);
 142     qemu_put_sbe32s(f, &env->CP0_TagHi);
 143     qemu_put_sbe32s(f, &env->CP0_DataHi);
 144     qemu_put_betls(f, &env->CP0_ErrorEPC);
 145     qemu_put_sbe32s(f, &env->CP0_DESAVE);
 146
 147     /* Save inactive TC state */
 148     for (i = 0; i < MIPS_SHADOW_SET_MAX; i++)
 149         save_tc(f, &env->tcs[i]);
 150     for (i = 0; i < MIPS_FPU_MAX; i++)
 151         save_fpu(f, &env->fpus[i]);
 152 }
 153
 154 static void load_tc(QEMUFile *f, TCState *tc)
 155 {
 156     int i;
 157
 158     /* Save active TC */
 159     for(i = 0; i < 32; i++)
 160         qemu_get_betls(f, &tc->gpr[i]);
 161     qemu_get_betls(f, &tc->PC);
 162     for(i = 0; i < MIPS_DSP_ACC; i++)
 163         qemu_get_betls(f, &tc->HI[i]);
 164     for(i = 0; i < MIPS_DSP_ACC; i++)
 165         qemu_get_betls(f, &tc->LO[i]);
 166     for(i = 0; i < MIPS_DSP_ACC; i++)
 167         qemu_get_betls(f, &tc->ACX[i]);
 168     qemu_get_betls(f, &tc->DSPControl);
 169     qemu_get_sbe32s(f, &tc->CP0_TCStatus);
 170     qemu_get_sbe32s(f, &tc->CP0_TCBind);
 171     qemu_get_betls(f, &tc->CP0_TCHalt);
 172     qemu_get_betls(f, &tc->CP0_TCContext);
 173     qemu_get_betls(f, &tc->CP0_TCSchedule);
 174     qemu_get_betls(f, &tc->CP0_TCScheFBack);
 175     qemu_get_sbe32s(f, &tc->CP0_Debug_tcstatus);
 176 }
 177
 178 static void load_fpu(QEMUFile *f, CPUMIPSFPUContext *fpu)
 179 {
 180     int i;
 181
 182     for(i = 0; i < 32; i++)
 183         qemu_get_be64s(f, &fpu->fpr[i].d);
 184     qemu_get_s8s(f, &fpu->fp_status.float_detect_tininess);
 185     qemu_get_s8s(f, &fpu->fp_status.float_rounding_mode);
 186     qemu_get_s8s(f, &fpu->fp_status.float_exception_flags);
 187     qemu_get_be32s(f, &fpu->fcr0);
 188     qemu_get_be32s(f, &fpu->fcr31);
 189 }
 190
 191 int cpu_load(QEMUFile *f, void *opaque, int version_id)
 192 {
 193     CPUState *env = opaque;
 194     int i;
 195
 196     if (version_id != 3)
 197         return -EINVAL;
 198
 199     /* Load active TC */
 200     load_tc(f, &env->active_tc);
 201
 202     /* Load active FPU */
 203     load_fpu(f, &env->active_fpu);
 204
 205     /* Load MVP */
 206     qemu_get_sbe32s(f, &env->mvp->CP0_MVPControl);
 207     qemu_get_sbe32s(f, &env->mvp->CP0_MVPConf0);
 208     qemu_get_sbe32s(f, &env->mvp->CP0_MVPConf1);
 209
 210     /* Load TLB */
 211     qemu_get_be32s(f, &env->tlb->nb_tlb);
 212     qemu_get_be32s(f, &env->tlb->tlb_in_use);
 213     for(i = 0; i < MIPS_TLB_MAX; i++) {
 214         uint16_t flags;
 215         uint8_t asid;
 216
 217         qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].VPN);
 218         qemu_get_be32s(f, &env->tlb->mmu.r4k.tlb[i].PageMask);
 219         qemu_get_8s(f, &asid);
 220         env->tlb->mmu.r4k.tlb[i].ASID = asid;
 221         qemu_get_be16s(f, &flags);
 222         env->tlb->mmu.r4k.tlb[i].G = (flags >> 10) & 1;
 223         env->tlb->mmu.r4k.tlb[i].C0 = (flags >> 7) & 3;
 224         env->tlb->mmu.r4k.tlb[i].C1 = (flags >> 4) & 3;
 225         env->tlb->mmu.r4k.tlb[i].V0 = (flags >> 3) & 1;
 226         env->tlb->mmu.r4k.tlb[i].V1 = (flags >> 2) & 1;
 227         env->tlb->mmu.r4k.tlb[i].D0 = (flags >> 1) & 1;
 228         env->tlb->mmu.r4k.tlb[i].D1 = (flags >> 0) & 1;
 229         qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[0]);
 230         qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[1]);
 231     }
 232
 233     /* Load CPU metastate */
 234     qemu_get_be32s(f, &env->current_tc);
 235     qemu_get_be32s(f, &env->current_fpu);
 236     qemu_get_sbe32s(f, &env->error_code);
 237     qemu_get_be32s(f, &env->hflags);
 238     qemu_get_betls(f, &env->btarget);
 239     qemu_get_sbe32s(f, &i);
 240     env->bcond = i;
 241
 242     /* Load remaining CP1 registers */
 243     qemu_get_sbe32s(f, &env->CP0_Index);
 244     qemu_get_sbe32s(f, &env->CP0_Random);
 245     qemu_get_sbe32s(f, &env->CP0_VPEControl);
 246     qemu_get_sbe32s(f, &env->CP0_VPEConf0);
 247     qemu_get_sbe32s(f, &env->CP0_VPEConf1);
 248     qemu_get_betls(f, &env->CP0_YQMask);
 249     qemu_get_betls(f, &env->CP0_VPESchedule);
 250     qemu_get_betls(f, &env->CP0_VPEScheFBack);
 251     qemu_get_sbe32s(f, &env->CP0_VPEOpt);
 252     qemu_get_betls(f, &env->CP0_EntryLo0);
 253     qemu_get_betls(f, &env->CP0_EntryLo1);
 254     qemu_get_betls(f, &env->CP0_Context);
 255     qemu_get_sbe32s(f, &env->CP0_PageMask);
 256     qemu_get_sbe32s(f, &env->CP0_PageGrain);
 257     qemu_get_sbe32s(f, &env->CP0_Wired);
 258     qemu_get_sbe32s(f, &env->CP0_SRSConf0);
 259     qemu_get_sbe32s(f, &env->CP0_SRSConf1);
 260     qemu_get_sbe32s(f, &env->CP0_SRSConf2);
 261     qemu_get_sbe32s(f, &env->CP0_SRSConf3);
 262     qemu_get_sbe32s(f, &env->CP0_SRSConf4);
 263     qemu_get_sbe32s(f, &env->CP0_HWREna);
 264     qemu_get_betls(f, &env->CP0_BadVAddr);
 265     qemu_get_sbe32s(f, &env->CP0_Count);
 266     qemu_get_betls(f, &env->CP0_EntryHi);
 267     qemu_get_sbe32s(f, &env->CP0_Compare);
 268     qemu_get_sbe32s(f, &env->CP0_Status);
 269     qemu_get_sbe32s(f, &env->CP0_IntCtl);
 270     qemu_get_sbe32s(f, &env->CP0_SRSCtl);
 271     qemu_get_sbe32s(f, &env->CP0_SRSMap);
 272     qemu_get_sbe32s(f, &env->CP0_Cause);
 273     qemu_get_betls(f, &env->CP0_EPC);
 274     qemu_get_sbe32s(f, &env->CP0_PRid);
 275     qemu_get_sbe32s(f, &env->CP0_EBase);
 276     qemu_get_sbe32s(f, &env->CP0_Config0);
 277     qemu_get_sbe32s(f, &env->CP0_Config1);
 278     qemu_get_sbe32s(f, &env->CP0_Config2);
 279     qemu_get_sbe32s(f, &env->CP0_Config3);
 280     qemu_get_sbe32s(f, &env->CP0_Config6);
 281     qemu_get_sbe32s(f, &env->CP0_Config7);
 282     qemu_get_betls(f, &env->lladdr);
 283     for(i = 0; i < 8; i++)
 284         qemu_get_betls(f, &env->CP0_WatchLo[i]);
 285     for(i = 0; i < 8; i++)
 286         qemu_get_sbe32s(f, &env->CP0_WatchHi[i]);
 287     qemu_get_betls(f, &env->CP0_XContext);
 288     qemu_get_sbe32s(f, &env->CP0_Framemask);
 289     qemu_get_sbe32s(f, &env->CP0_Debug);
 290     qemu_get_betls(f, &env->CP0_DEPC);
 291     qemu_get_sbe32s(f, &env->CP0_Performance0);
 292     qemu_get_sbe32s(f, &env->CP0_TagLo);
 293     qemu_get_sbe32s(f, &env->CP0_DataLo);
 294     qemu_get_sbe32s(f, &env->CP0_TagHi);
 295     qemu_get_sbe32s(f, &env->CP0_DataHi);
 296     qemu_get_betls(f, &env->CP0_ErrorEPC);
 297     qemu_get_sbe32s(f, &env->CP0_DESAVE);
 298
 299     /* Load inactive TC state */
 300     for (i = 0; i < MIPS_SHADOW_SET_MAX; i++)
 301         load_tc(f, &env->tcs[i]);
 302     for (i = 0; i < MIPS_FPU_MAX; i++)
 303         load_fpu(f, &env->fpus[i]);
 304
 305     /* XXX: ensure compatibility for halted bit ? */
 306     tlb_flush(env, 1);
 307     return 0;
 308 }