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ACPICA: Disassembler: add external op to namespace on first pass

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ACPICA commit 117be4819588df3b7146f6f01723639b1d61e775

By doing so, external control method resolutions can be resolved like
normal control methods. This eliminates the need to reparse the aml
all over again for external control methods that were encoded within
the aml with the 0x15 bytecode.

Link: https://github.com/acpica/acpica/commit/117be481
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Erik Schmauss 2017-06-05 16:41:49 +08:00 committed by Rafael J. Wysocki
parent 2f8c1141da
commit bdcf4cdbdc
2 changed files with 47 additions and 3 deletions
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40
drivers/acpi/acpica/dswload.c
View File

@ -434,6 +434,10 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
acpi_object_type object_type;
acpi_status status = AE_OK;
#ifdef ACPI_ASL_COMPILER
u8 param_count;
#endif
ACPI_FUNCTION_TRACE(ds_load1_end_op);
op = walk_state->op;
@ -514,6 +518,38 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
}
}
}
#ifdef ACPI_ASL_COMPILER
/*
* For external opcode, get the object type from the argument and
* get the parameter count from the argument's next.
*/
if (acpi_gbl_disasm_flag &&
op->common.node && op->common.aml_opcode == AML_EXTERNAL_OP) {
/*
* Note, if this external is not a method
* Op->Common.Value.Arg->Common.Next->Common.Value.Integer == 0
* Therefore, param_count will be 0.
*/
param_count =
(u8)op->common.value.arg->common.next->common.value.integer;
object_type = (u8)op->common.value.arg->common.value.integer;
op->common.node->flags |= ANOBJ_IS_EXTERNAL;
op->common.node->type = (u8)object_type;
acpi_dm_create_subobject_for_external((u8)object_type,
&op->common.node,
param_count);
/*
* Add the external to the external list because we may be
* emitting code based off of the items within the external list.
*/
acpi_dm_add_op_to_external_list(op, op->named.path,
(u8)object_type, param_count,
ACPI_EXT_ORIGIN_FROM_OPCODE |
ACPI_EXT_RESOLVED_REFERENCE);
}
#endif
/*
* If we are executing a method, do not create any namespace objects
@ -563,7 +599,9 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
/* Pop the scope stack (only if loading a table) */
if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) {
if (!walk_state->method_node &&
op->common.aml_opcode != AML_EXTERNAL_OP &&
acpi_ns_opens_scope(object_type)) {
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"(%s): Popping scope for Op %p\n",
acpi_ut_get_type_name(object_type), op));

10
drivers/acpi/acpica/dswload2.c
View File

@ -313,8 +313,14 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
#ifdef ACPI_ASL_COMPILER
/*
* Do not open a scope. This could be an external method
* and open a scope.
* Do not open a scope for AML_EXTERNAL_OP
* acpi_ns_lookup can open a new scope based on the object type
* of this op. AML_EXTERNAL_OP is a declaration rather than a
* definition. In the case that this external is a method object,
* acpi_ns_lookup will open a new scope. However, an AML_EXTERNAL_OP
* associated with the ACPI_TYPE_METHOD is a declaration, rather than
* a definition. Flags is set to avoid opening a scope for any
* AML_EXTERNAL_OP.
*/
if (walk_state->opcode == AML_EXTERNAL_OP) {
flags |= ACPI_NS_DONT_OPEN_SCOPE;