diff options
Diffstat (limited to 'drivers/acpi/acpica/nsparse.c')
| -rw-r--r-- | drivers/acpi/acpica/nsparse.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c index ba1a50da09d0..c9ef4949869f 100644 --- a/drivers/acpi/acpica/nsparse.c +++ b/drivers/acpi/acpica/nsparse.c @@ -27,8 +27,17 @@ ACPI_MODULE_NAME("nsparse") * * RETURN: Status * - * DESCRIPTION: Load ACPI/AML table by executing the entire table as a - * term_list. + * DESCRIPTION: Load ACPI/AML table by executing the entire table as a single + * large control method. + * + * NOTE: The point of this is to execute any module-level code in-place + * as the table is parsed. Some AML code depends on this behavior. + * + * It is a run-time option at this time, but will eventually become + * the default. + * + * Note: This causes the table to only have a single-pass parse. + * However, this is compatible with other ACPI implementations. * ******************************************************************************/ acpi_status @@ -233,6 +242,17 @@ acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node) ACPI_FUNCTION_TRACE(ns_parse_table); if (acpi_gbl_execute_tables_as_methods) { + /* + * This case executes the AML table as one large control method. + * The point of this is to execute any module-level code in-place + * as the table is parsed. Some AML code depends on this behavior. + * + * It is a run-time option at this time, but will eventually become + * the default. + * + * Note: This causes the table to only have a single-pass parse. + * However, this is compatible with other ACPI implementations. + */ ACPI_DEBUG_PRINT_RAW((ACPI_DB_PARSE, "%s: **** Start table execution pass\n", ACPI_GET_FUNCTION_NAME)); |