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ACPICA: FADT: Favor 32-bit FACS and DSDT addresses

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If both the 32-bit and 64-bit addresses are non-null, use the
32-bit address. Provides Windows compatibility.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2009-03-19 10:13:40 +08:00 committed by Len Brown
parent 31fbc073a3
commit f655630633
1 changed files with 6 additions and 2 deletions
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8
drivers/acpi/acpica/tbfadt.c
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@ -483,18 +483,22 @@ static void acpi_tb_validate_fadt(void)
(acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
ACPI_WARNING((AE_INFO,
"32/64X FACS address mismatch in FADT - "
"two FACS tables! %8.8X/%8.8X%8.8X",
"%8.8X/%8.8X%8.8X, using 32",
acpi_gbl_FADT.facs,
ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));
acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
}
if (acpi_gbl_FADT.dsdt &&
(acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
ACPI_WARNING((AE_INFO,
"32/64X DSDT address mismatch in FADT - "
"two DSDT tables! %8.8X/%8.8X%8.8X",
"%8.8X/%8.8X%8.8X, using 32",
acpi_gbl_FADT.dsdt,
ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt)));
acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
}
/* Examine all of the 64-bit extended address fields (X fields) */