Exemple #1
0
/* CPUClass::reset() */
static void mb_cpu_reset(CPUState *s)
{
    MicroBlazeCPU *cpu = MICROBLAZE_CPU(s);
    MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu);
    CPUMBState *env = &cpu->env;

    mcc->parent_reset(s);

    memset(env, 0, offsetof(CPUMBState, end_reset_fields));
    env->res_addr = RES_ADDR_NONE;

    /* Disable stack protector.  */
    env->shr = ~0;

    env->sregs[SR_PC] = cpu->cfg.base_vectors;

#if defined(CONFIG_USER_ONLY)
    /* start in user mode with interrupts enabled.  */
    env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
#else
    env->sregs[SR_MSR] = 0;
    mmu_init(&env->mmu);
    env->mmu.c_mmu = 3;
    env->mmu.c_mmu_tlb_access = 3;
    env->mmu.c_mmu_zones = 16;
#endif
}
Exemple #2
0
/* CPUClass::reset() */
static void mb_cpu_reset(CPUState *s)
{
    MicroBlazeCPU *cpu = MICROBLAZE_CPU(s);
    MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu);
    CPUMBState *env = &cpu->env;

    if (qemu_loglevel_mask(CPU_LOG_RESET)) {
        qemu_log("CPU Reset (CPU %d)\n", s->cpu_index);
        log_cpu_state(env, 0);
    }

    mcc->parent_reset(s);

    memset(env, 0, offsetof(CPUMBState, breakpoints));
    env->res_addr = RES_ADDR_NONE;
    tlb_flush(env, 1);

    /* Disable stack protector.  */
    env->shr = ~0;

    env->pvr.regs[0] = PVR0_PVR_FULL_MASK \
                       | PVR0_USE_BARREL_MASK \
                       | PVR0_USE_DIV_MASK \
                       | PVR0_USE_HW_MUL_MASK \
                       | PVR0_USE_EXC_MASK \
                       | PVR0_USE_ICACHE_MASK \
                       | PVR0_USE_DCACHE_MASK \
                       | PVR0_USE_MMU \
                       | (0xb << 8);
    env->pvr.regs[2] = PVR2_D_OPB_MASK \
                        | PVR2_D_LMB_MASK \
                        | PVR2_I_OPB_MASK \
                        | PVR2_I_LMB_MASK \
                        | PVR2_USE_MSR_INSTR \
                        | PVR2_USE_PCMP_INSTR \
                        | PVR2_USE_BARREL_MASK \
                        | PVR2_USE_DIV_MASK \
                        | PVR2_USE_HW_MUL_MASK \
                        | PVR2_USE_MUL64_MASK \
                        | PVR2_USE_FPU_MASK \
                        | PVR2_USE_FPU2_MASK \
                        | PVR2_FPU_EXC_MASK \
                        | 0;
    env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family.  */
    env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);

#if defined(CONFIG_USER_ONLY)
    /* start in user mode with interrupts enabled.  */
    env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
    env->pvr.regs[10] = 0x0c000000; /* Spartan 3a dsp.  */
#else
    env->sregs[SR_MSR] = 0;
    mmu_init(&env->mmu);
    env->mmu.c_mmu = 3;
    env->mmu.c_mmu_tlb_access = 3;
    env->mmu.c_mmu_zones = 16;
#endif
}