From bc7a36ab74e09da7bb63e2477b0740ac992b290e Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 10 Apr 2008 19:06:42 +0400 Subject: ACPICA: Fixes for Unload and DDBHandles Implemented support for the use of DDBHandles as an Indexed Reference, as per the ACPI spec. http://www.acpica.org/bugzilla/show_bug.cgi?id=486. Implemented support for UserTerm (Method invocation) for the Unload operator as per the ACPI spec. http://www.acpica.org/bugzilla/show_bug.cgi?id=580 Signed-off-by: Bob Moore Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/executer/exdump.c | 27 +++++++++++++++++++-------- drivers/acpi/executer/exresolv.c | 13 +++++++++---- drivers/acpi/executer/exstore.c | 23 ++++++++++++++++++----- 3 files changed, 46 insertions(+), 17 deletions(-) (limited to 'drivers/acpi/executer') diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c index 251d84ba79b3..ed560e656f9a 100644 --- a/drivers/acpi/executer/exdump.c +++ b/drivers/acpi/executer/exdump.c @@ -895,14 +895,25 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc) } else if (obj_desc->reference.object) { if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) { - acpi_os_printf(" Target: %p [%s]\n", - obj_desc->reference.object, - acpi_ut_get_type_name(((union - acpi_operand_object - *)obj_desc-> - reference. - object)->common. - type)); + acpi_os_printf(" Target: %p", + obj_desc->reference.object); + if (obj_desc->reference.opcode == AML_LOAD_OP) { + /* + * For DDBHandle reference, + * obj_desc->Reference.Object is the table index + */ + acpi_os_printf(" [DDBHandle]\n"); + } else { + acpi_os_printf(" [%s]\n", + acpi_ut_get_type_name(((union + acpi_operand_object + *) + obj_desc-> + reference. + object)-> + common. + type)); + } } else { acpi_os_printf(" Target: %p\n", obj_desc->reference.object); diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c index 9c3cdf61dc34..5b5b2ff45ea2 100644 --- a/drivers/acpi/executer/exresolv.c +++ b/drivers/acpi/executer/exresolv.c @@ -382,10 +382,10 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, } /* - * For reference objects created via the ref_of or Index operators, - * we need to get to the base object (as per the ACPI specification - * of the object_type and size_of operators). This means traversing - * the list of possibly many nested references. + * For reference objects created via the ref_of, Index, or Load/load_table + * operators, we need to get to the base object (as per the ACPI + * specification of the object_type and size_of operators). This means + * traversing the list of possibly many nested references. */ while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { switch (obj_desc->reference.opcode) { @@ -455,6 +455,11 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, } break; + case AML_LOAD_OP: + + type = ACPI_TYPE_DDB_HANDLE; + goto exit; + case AML_LOCAL_OP: case AML_ARG_OP: diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c index 2408122cb3b2..725614e277f8 100644 --- a/drivers/acpi/executer/exstore.c +++ b/drivers/acpi/executer/exstore.c @@ -434,11 +434,24 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, */ obj_desc = *(index_desc->reference.where); - status = - acpi_ut_copy_iobject_to_iobject(source_desc, &new_desc, - walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + if (ACPI_GET_OBJECT_TYPE(source_desc) == + ACPI_TYPE_LOCAL_REFERENCE + && source_desc->reference.opcode == AML_LOAD_OP) { + + /* This is a DDBHandle, just add a reference to it */ + + acpi_ut_add_reference(source_desc); + new_desc = source_desc; + } else { + /* Normal object, copy it */ + + status = + acpi_ut_copy_iobject_to_iobject(source_desc, + &new_desc, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } } if (obj_desc) { -- cgit v1.2.2