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ACPICA: Tables: Enable default 64-bit FADT addresses favor

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ACPICA commit 4da56eeae0749dfe8491285c1e1fad48f6efafd8

The following commit temporarily disables correct 64-bit FADT addresses
favor during the period the root cause of the bug is not fixed:
 Commit: 85dbd5801f
 ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses.

With enough protections, this patch re-enables 64-bit FADT addresses by
default. If regressions are reported against such change, this patch should
be bisected and reverted.
Note that 64-bit FACS favor and 64-bit firmware waking vector favor are
excluded by this commit in order not to break OSPMs. Lv Zheng.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: 4da56eea
Cc: 3.15.1+ <[email protected]> # 3.15.1+
Reported-and-tested-by: Oswald Buddenhagen <[email protected]>
Signed-off-by: Lv Zheng <[email protected]>
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Lv Zheng 2015-07-01 14:43:34 +08:00 • committed by Rafael J. Wysocki
commit 0ea6138178
1 changed files with 2 additions and 2 deletions
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4
include/acpi/acpixf.h
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@ -195,9 +195,9 @@ ACPI_INIT_GLOBAL(u8, 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 TRUE, favor the 32-bit addresses.
* address. Default is FALSE, do not favor the 32-bit addresses.
*/
ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);
ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
/*
* Optionally use 32-bit FACS table addresses.