Beispiel #1
0
void
AcpiPutTable (
    ACPI_TABLE_HEADER       *Table)
{
    UINT32                  i;
    ACPI_TABLE_DESC         *TableDesc;


    ACPI_FUNCTION_TRACE (AcpiPutTable);


    (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);

    /* Walk the root table list */

    for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
    {
        TableDesc = &AcpiGbl_RootTableList.Tables[i];

        if (TableDesc->Pointer != Table)
        {
            continue;
        }

        AcpiTbPutTable (TableDesc);
        break;
    }

    (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
    return_VOID;
}
Beispiel #2
0
void
AcpiTbParseFadt (
    void)
{
    UINT32                  Length;
    ACPI_TABLE_HEADER       *Table;
    ACPI_TABLE_DESC         *FadtDesc;
    ACPI_STATUS             Status;


    /*
     * The FADT has multiple versions with different lengths,
     * and it contains pointers to both the DSDT and FACS tables.
     *
     * Get a local copy of the FADT and convert it to a common format
     * Map entire FADT, assumed to be smaller than one page.
     */
    FadtDesc = &AcpiGbl_RootTableList.Tables[AcpiGbl_FadtIndex];
    Status = AcpiTbGetTable (FadtDesc, &Table);
    if (ACPI_FAILURE (Status))
    {
        return;
    }
    Length = FadtDesc->Length;

    /*
     * Validate the FADT checksum before we copy the table. Ignore
     * checksum error as we want to try to get the DSDT and FACS.
     */
    (void) AcpiTbVerifyChecksum (Table, Length);

    /* Create a local copy of the FADT in common ACPI 2.0+ format */

    AcpiTbCreateLocalFadt (Table, Length);

    /* All done with the real FADT, unmap it */

    AcpiTbPutTable (FadtDesc);

    /* Obtain the DSDT and FACS tables via their addresses within the FADT */

    AcpiTbInstallStandardTable (
        (ACPI_PHYSICAL_ADDRESS) AcpiGbl_FADT.XDsdt,
        ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL, FALSE, TRUE,
        &AcpiGbl_DsdtIndex);

    /* If Hardware Reduced flag is set, there is no FACS */

    if (!AcpiGbl_ReducedHardware)
    {
        if (AcpiGbl_FADT.Facs)
        {
            AcpiTbInstallStandardTable (
                (ACPI_PHYSICAL_ADDRESS) AcpiGbl_FADT.Facs,
                ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL, FALSE, TRUE,
                &AcpiGbl_FacsIndex);
        }
        if (AcpiGbl_FADT.XFacs)
        {
            AcpiTbInstallStandardTable (
                (ACPI_PHYSICAL_ADDRESS) AcpiGbl_FADT.XFacs,
                ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL, FALSE, TRUE,
                &AcpiGbl_XFacsIndex);
        }
    }
}