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ACPICA: Add support for module-level executable AML code

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Add limited support for executable AML code that exists outside
of any control method. This type of code has been illegal since
ACPI 2.0.  The code must exist in an If/Else/While block. All AML
tables are supported, including tables that are dynamically loaded.
ACPICA BZ 762.

http://acpica.org/bugzilla/show_bug.cgi?id=762

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Lin Ming
2009-08-13 14:03:15 +08:00
committed by Len Brown
parent 999e08f998
commit 7f0c826a43
13 changed files with 306 additions and 52 deletions
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18
drivers/acpi/acpica/dsfield.c
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@@ -123,9 +123,12 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
ACPI_NS_ERROR_IF_FOUND;
/* Mark node temporary if we are executing a method */
if (walk_state->method_node) {
/*
* Mark node temporary if we are executing a normal control
* method. (Don't mark if this is a module-level code method)
*/
if (walk_state->method_node &&
!(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
flags |= ACPI_NS_TEMPORARY;
}
@@ -456,9 +459,12 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
ACPI_NS_ERROR_IF_FOUND;
/* Mark node(s) temporary if we are executing a method */
if (walk_state->method_node) {
/*
* Mark node(s) temporary if we are executing a normal control
* method. (Don't mark if this is a module-level code method)
*/
if (walk_state->method_node &&
!(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
flags |= ACPI_NS_TEMPORARY;
}