Previously, the maximum data size passed to the EC operation region
handler was a single byte. Since there are often larger datums that
need to be transfered, and the EC would like to lock these as a single
transaction, this change enables transfers larger than a single byte.
This may require changes to the host-OS Embedded Controller driver
to enable 16/32/64 bit tranfers in addition to 8-bit transfers.
Alexey Starikovskiy, Lin Ming
Remove obsolete AOPOBJ_SINGLE_DATUM. Add AOPOBJ_INVALID for use if
the host OS rejects the address of an operation region (currently
only used by Linux.)
This change enhances the performance of namespace searches and walks
by adding a backpointer to the parent in each namespace node. On large
namespaces, this change can improve overall ACPI performance by up to 9X.
Adding a pointer to each namespace node increases the overall size of
the internal namespace by about 5%, since each namespace entry usually
consists of both a namespace node and an ACPI operand object.
Alexey Starikovskiy.
This feature is optional and is enabled if the BIOS requests any Windows
OSI strings. It can also be enabled by the host OS. Matthew Garrett,
Bob Moore.
On control method exit, only walk the namespace if the method is known
to have created namespace objects outside of its local scope.
Bob Moore, Alexey Starikovskiy.
-dt option will disable the tracking mechanism, which improves performance
considerably. Also restructured the options into -d (disable) and -e (enable) options.
These objects are defined by "Windows Instrumentation", and are not
part of the ACPI spec. Adds compiler support and runtime typechecking
support in the ACPICA core. ACPICA BZ 860.
This option disables resource descriptor error checking.
ASLTS tests byte-by-byte descriptor construction, thus we
do not want to error check the values at compile time.
Useful for ASLTS. Disable errors from resource descriptors.
ASLTS checks for correct byte-by-byte descriptor construction, thus
errors are unavoidable.
This change implements the rules for LEN/MIF/MAF/MIN/MAX/GRA that come
from the ACPI specification (Table 6-40). Also added a special
case for IO descriptor where MIN/MAX are both start addresses, not
a start and end address. ACPICA BZ 840.
This change implements validation for the address fields that are
common to all address-type resource descriptors. These checks
are implemented: Checks for valid min/max, length within the
min/max window, valid granularity and min/max a multiple of
granularity. ACPICA BZ 840.
If no return value is expected from this predefined name, then
it follows that it must be implemented as a control method
(with zero args, because the args > 0 case was handled above)
Examples are: _DIS, _INI, _IRC, _OFF, _ON, _PSx
