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  1. 15 Feb, 2005 1 commit
    • Len Brown's avatar
      [ACPI] ACPICA 20050211 from Bob Moore · 82d6b1e6
      Len Brown authored 
      Implemented ACPI 3.0 support for implicit conversion within
the Match() operator. match_obj can now be of type
integer, buffer, or string instead of just type integer.
Package elements are implicitly converted to the type
of the match_obj. This change aligns the behavior of
Match() with the behavior of the other logical operators
(LLess(), etc.)  It also requires an errata change to the
ACPI specification as this support was intended for ACPI
3.0, but was inadvertently omitted.

Fixed a problem with the internal implicit "to buffer"
conversion.  Strings that are converted to buffers will
cause buffer truncation if the string is smaller than the
target buffer. Integers that are converted to buffers will
not cause buffer truncation, only zero extension (both as
per the ACPI spec.) The problem was introduced when code
was added to truncate the buffer, but this should not be
performed in all cases, only the string case.

Fixed a problem with the Buffer and Package operators
where the interpreter would get confused if two such
operators were used as operands to an ASL operator (such
as LLess(Buffer(1){0},Buffer(1){1}).  The internal result
stack was not being popped after the execution of these
operators, resulting in an AE_NO_RETURN_VALUE exception.

Fixed a problem with constructs of the form
Store(Index(...),...). The reference object returned from
Index was inadvertently resolved to an actual value. This
problem was introduced in version 20050114 when the
behavior of Store() was modified to restrict the object
types that can be used as the source operand (to match
the ACPI specification.)

Reduced stack use in acpi_get_object_info().
      82d6b1e6
  3. 30 Jan, 2005 2 commits
  5. 27 Jan, 2005 2 commits
  7. 25 Jan, 2005 1 commit
    • Len Brown's avatar
      [ACPI] ACPICA 20050125 from Bob Moore · 2a539154
      Len Brown authored 
      Fixed a recently introduced problem with the Global
Lock where the underlying semaphore was not created.
This problem was introduced in version 20050114, and
caused an AE_AML_NO_OPERAND exception during an Acquire()
operation on _GL.

The local object cache is now optional, and is disabled
by default.  #define ACPI_ENABLE_OBJECT_CACHE to enable
the local cache.

Fixed an issue in the internal function
acpi_ut_evaluate_object() concerning the optional "implicit
return" support where an error was returned if no return
object was expected, but one was implicitly returned. AE_OK
is now returned in this case and the implicitly returned
object is deleted.  acpi_ut_evaluate_object() is only
occasionally used, and only to execute reserved methods
such as _STA and _INI where the return type is known
up front.

Fixed a few issues with the internal convert-to-integer
code. It now returns an error if an attempt is made to
convert a null string, a string of only blanks/tabs, or a
zero-length buffer. This affects both implicit conversion
and explicit conversion via the ToInteger() operator.

The internal debug code in acpi_ut_acquire_mutex()
has been commented out. It is not needed for normal
operation and should increase the performance of the entire
subsystem. The code remains in case it is needed for debug
purposes again.
acpica-unix-20050125.patch
      2a539154
  9. 21 Jan, 2005 1 commit
  11. 20 Jan, 2005 3 commits
    • Len Brown's avatar
      [ACPI] ACPICA 20050114 from Bob Moore · fa6c3e73
      Len Brown authored 
      Added 2005 copyright to all ACPICA files.

Fixed an issue with the String-to-Buffer conversion code
where the string null terminator was not included in the
buffer after conversion, but there is existing ASL that
assumes the string null terminator is included. This is the
root of the ACPI_AML_BUFFER_LIMIT regression. This problem
was introduced in the previous version when the code was
updated to correctly set the converted buffer size as per
the ACPI specification. The ACPI spec is ambiguous and
will be updated to specify that the null terminator must
be included in the converted buffer. This also affects
the ToBuffer() ASL operator.

Fixed a problem with the Mid() ASL/AML operator where it
did not work correctly on Buffer objects. Newly created
sub-buffers were not being marked as initialized.

Fixed a problem in acpi_tb_find_table where incorrect string
compares were performed on the oem_id and oem_table_d table
header fields.  These fields are not null terminated,
so strncmp is now used instead of strcmp.

Implemented a restriction on the Store() ASL/AML operator
to align the behavior with the ACPI specification.
Previously, any object could be used as the source
operand.  Now, the only objects that may be used are
Integers, Buffers, Strings, Packages, Object References,
and DDB Handles.  As acpi_gbl_enable_interpreter_slack
is FALSE by default, "acpi=strict" is needed to enable
this check.

Enhanced the optional "implicit return" support to allow
an implicit return value from methods that are invoked
externally via the AcpiEvaluateObject interface.  This
enables implicit returns from the _STA and _INI methods,
for example.

Changed the Revision() ASL/AML operator to return the
current version of the AML interpreter, in the YYYYMMDD
format. Previously, it incorrectly returned the supported
ACPI version (This is the function of the _REV method).

Updated the _REV predefined method to return the currently
supported version of ACPI, now 3.
      fa6c3e73
    • Len Brown's avatar
      [ACPI] Add a module parameter to allow tuning how much bus-master activity · a22df92c
      Len Brown authored 
      we remember when entering C3 -- /sys/module/processor/parameters/bm_history
Default varies with HZ -- 40ms for 25 - 800 HZ, 32ms for 1000 HZ.
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
      a22df92c
    • Len Brown's avatar
      [ACPI] Make the bm_activity depend on "jiffies", instead of numbers · caf866a0
      Len Brown authored 
      of the check being called. This means bus mastering activity
is assumed if bm_check isn't called; and multiple calls during
one jiffy will be |='ed.
Signed-off-by: default avatarDominik Brodowski <linux@brodo.de>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
      caf866a0
  13. 07 Jan, 2005 1 commit
  15. 05 Jan, 2005 1 commit
  17. 04 Jan, 2005 1 commit
  19. 24 Dec, 2004 6 commits
  21. 23 Dec, 2004 15 commits
  23. 22 Dec, 2004 6 commits
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