Cleanup for this write-then-read protocol. The ACPI specification
is rather unclear for the entire generic_serial_bus, but this
change works correctly on the Surface 3.
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Macros to classify different AML exception codes have been added in
order to ignore the exceptions,
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
[ rjw: Fix damaged white space ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit a7f73af9003bf4e730db5a133300c01ba7992a01
The data table compiler throws under the following conditions:
1.) there is a table with a last field that is optional
2.) if the optional field is not present
3.) the optional field is the last line of the data table
A change was made to dt_compile_table to return an AE_EOF under
these conditions. This AE_EOF means that we are at the end of the
file. The caller to dt_compile_table() is responsible for handling
this case. For DBG2 table, we will complete the compilation of this
subtable. For other tables, this could be different.
Link: https://github.com/acpica/acpica/commit/a7f73af9
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 610046d444ad781cc36673bf1f030abe50cbc61f
Improve adherence to ACPI spec for implicit and explicit conversions
Adds octal support for constants in ASL code
Adds integer overflow errors for constants during ASL compilation
Eliminates most of the existing complex flags parameters
Simplify support for implicit/explicit runtime conversions
Adds one new file, utilities/utstrsuppt.c
Link: https://github.com/acpica/acpica/commit/610046d444ad
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit ba665dc8e20d9f7730466a659564dd6c557a6cbc
In Linux, para-virtualization implmentation hooks critical register
writes to prevent real hardware operations. This increases divergences
when the sleep registers are cracked in Linux resident ACPICA.
This patch tries to introduce a single OSL to reduce the divergences.
Link: https://github.com/acpica/acpica/commit/ba665dc8
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit ed7769e832de6c7ba90615480d916c85fd100422
If a table load fails, delete all namespace objects created by the
table, otherwise these objects will be uninitialized, causing
problems later. This appears to be a very rare problem.
Also handle the unitialized node problem to prevent possible
faults. ACPICA BZ 1185.
Link: https://github.com/acpica/acpica/commit/ed7769e8
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This reverts commit aae576e5faefa8ba70647efa320d4747b6375f1e.
Push and Pop are not portable "enough", and caused problems for
some ACPICA customers.
Signed-off-by: Robert Moore <Robert.Moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use push and pop to both guarantee that the correct alignment is used,
and to restore the alignment to whatever it was before the header
was included.
It is reported that the #pragma pack(push/pop) directives are not supported
by the specific GCCs, but this patch still doesn't affect kernel build
as there are already #pragma pack([1]) directives used in the old ACPICA
headers, which means there shouldn't be GCCs that are currently used to
compile the ACPI kernels do not support #pragma pack() directives.
References: https://bugs.acpica.org/show_bug.cgi?id=1058
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Conflicts:
drivers/acpi/acpica/hwsleep.c
Text conflict between:
2feec47d4c
(ACPICA: ACPI 5: Support for new FADT SleepStatus, SleepControl registers)
which removed #include "actables.h"
and
09f98a825a
(x86, acpi, tboot: Have a ACPI os prepare sleep instead of calling tboot_sleep.)
which removed #include <linux/tboot.h>
The resolution is to remove them both.
Signed-off-by: Len Brown <len.brown@intel.com>
Bob Moore
Erik Schmauss
Lv Zheng
David E. Box
Len Brown