C++ (Cpp) rtas_ld Examples

Example #1

File: spapr_rtas.c Project: DeanSinaean/qemu

static void rtas_set_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
                                 uint32_t token, uint32_t nargs,
                                 target_ulong args,
                                 uint32_t nret, target_ulong rets)
{
    struct tm tm;

    tm.tm_year = rtas_ld(args, 0) - 1900;
    tm.tm_mon = rtas_ld(args, 1) - 1;
    tm.tm_mday = rtas_ld(args, 2);
    tm.tm_hour = rtas_ld(args, 3);
    tm.tm_min = rtas_ld(args, 4);
    tm.tm_sec = rtas_ld(args, 5);

    /* Just generate a monitor event for the change */
    rtc_change_mon_event(&tm);
    spapr->rtc_offset = qemu_timedate_diff(&tm);

    rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}

Example #2

File: spapr_rtas_ddw.c Project: 8tab/qemu

static void rtas_ibm_create_pe_dma_window(PowerPCCPU *cpu,
                                          sPAPRMachineState *spapr,
                                          uint32_t token, uint32_t nargs,
                                          target_ulong args,
                                          uint32_t nret, target_ulong rets)
{
    sPAPRPHBState *sphb;
    sPAPRTCETable *tcet = NULL;
    uint32_t addr, page_shift, window_shift, liobn;
    uint64_t buid, win_addr;
    int windows;

    if ((nargs != 5) || (nret != 4)) {
        goto param_error_exit;
    }

    buid = ((uint64_t)rtas_ld(args, 1) << 32) | rtas_ld(args, 2);
    addr = rtas_ld(args, 0);
    sphb = spapr_pci_find_phb(spapr, buid);
    if (!sphb || !sphb->ddw_enabled) {
        goto param_error_exit;
    }

    page_shift = rtas_ld(args, 3);
    window_shift = rtas_ld(args, 4);
    liobn = spapr_phb_get_free_liobn(sphb);
    windows = spapr_phb_get_active_win_num(sphb);

    if (!(sphb->page_size_mask & (1ULL << page_shift)) ||
        (window_shift < page_shift)) {
        goto param_error_exit;
    }

    if (!liobn || !sphb->ddw_enabled || windows == SPAPR_PCI_DMA_MAX_WINDOWS) {
        goto hw_error_exit;
    }

    tcet = spapr_tce_find_by_liobn(liobn);
    if (!tcet) {
        goto hw_error_exit;
    }

    win_addr = (windows == 0) ? sphb->dma_win_addr : sphb->dma64_win_addr;
    spapr_tce_table_enable(tcet, page_shift, win_addr,
                           1ULL << (window_shift - page_shift));
    if (!tcet->nb_table) {
        goto hw_error_exit;
    }

    trace_spapr_iommu_ddw_create(buid, addr, 1ULL << page_shift,
                                 1ULL << window_shift, tcet->bus_offset, liobn);

    rtas_st(rets, 0, RTAS_OUT_SUCCESS);
    rtas_st(rets, 1, liobn);
    rtas_st(rets, 2, tcet->bus_offset >> 32);
    rtas_st(rets, 3, tcet->bus_offset & ((uint32_t) -1));

    return;

hw_error_exit:
    rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
    return;

param_error_exit:
    rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
}