diff options
| author |   Bob Moore <robert.moore@intel.com> | 2009-03-19 10:13:40 +0800 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2009-03-27 12:11:05 -0400 |
| commit | f65563063375b05898a94ab71b52612cbe3a789b (patch) | |
| tree | 347598d975b9ab8621e2546cb3fb5e84cba42413 /drivers/acpi/acpica/tbfadt.c | |
| parent | ACPICA: FADT: Favor 32-bit register addresses for compatibility (diff) | |
| download | linux-dev-f65563063375b05898a94ab71b52612cbe3a789b.tar.xz linux-dev-f65563063375b05898a94ab71b52612cbe3a789b.zip | |
ACPICA: FADT: Favor 32-bit FACS and DSDT addresses
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>
Diffstat (limited to 'drivers/acpi/acpica/tbfadt.c')
| -rw-r--r-- | drivers/acpi/acpica/tbfadt.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index f87bfb259ef6..71e655d14cb0 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -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) */ |