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ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses. 

commit 85dbd5801f upstream.

We need to find a smarter way to switch to 64-bit FADT addresses according
to the bug report.  This patch reverts Linux to the original behavior.

Fixes: 0249ed2444 (ACPICA: Add option to favor 32-bit FADT addresses.)
References: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lv Zheng 2014-05-13 16:50:30 +08:00 committed by Greg Kroah-Hartman
parent 226ae56a2f
commit 0ed09dccba
1 changed files with 2 additions and 2 deletions
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4
drivers/acpi/acpica/acglobal.h
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@ -132,9 +132,9 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_do_not_use_xsdt, FALSE);
* address. Although ACPICA adheres to the ACPI specification which
* requires the use of the corresponding 64-bit address if it is non-zero,
* some machines have been found to have a corrupted non-zero 64-bit
* address. Default is FALSE, do not favor the 32-bit addresses.
* address. Default is TRUE, favor the 32-bit addresses.
*/
u8 ACPI_INIT_GLOBAL(acpi_gbl_use32_bit_fadt_addresses, FALSE);
u8 ACPI_INIT_GLOBAL(acpi_gbl_use32_bit_fadt_addresses, TRUE);
/*
* Optionally truncate I/O addresses to 16 bits. Provides compatibility