ACPI: ACPICA 20060526

Restructured, flattened, and simplified the internal
interfaces for namespace object evaluation - resulting
in smaller code, less CPU stack use, and fewer
interfaces. (With assistance from Mikhail Kouzmich)

Fixed a problem with the CopyObject operator where the
first parameter was not typed correctly for the parser,
interpreter, compiler, and disassembler. Caused various
errors and unexpected behavior.

Fixed a problem where a ShiftLeft or ShiftRight of
more than 64 bits produced incorrect results with some
C compilers. Since the behavior of C compilers when
the shift value is larger than the datatype width is
apparently not well defined, the interpreter now detects
this condition and simply returns zero as expected in all
such cases. (BZ 395)

Fixed problem reports (Valery Podrezov) integrated: -
Update String-to-Integer conversion to match ACPI 3.0A spec
http://bugzilla.kernel.org/show_bug.cgi?id=5329
Allow interpreter to handle nested method declarations
http://bugzilla.kernel.org/show_bug.cgi?id=5361

Fixed problem reports (Fiodor Suietov) integrated: -
acpi_terminate() doesn't free debug memory allocation
list objects (BZ 355) - After Core Subsystem
shutdown, acpi_subsystem_status() returns AE_OK (BZ 356) -
acpi_os_unmap_memory() for RSDP can be invoked inconsistently
(BZ 357) - Resource Manager should return AE_TYPE for
non-device objects (BZ 358) - Incomplete cleanup branch
in AcpiNsEvaluateRelative (BZ 359) - Use acpi_os_free()
instead of ACPI_FREE in acpi_rs_set_srs_method_data (BZ 360)
- Incomplete cleanup branch in acpi_ps_parse_aml (BZ 361) -
Incomplete cleanup branch in acpi_ds_delete_walk_state (BZ 362)
- acpi_get_table_header returns AE_NO_ACPI_TABLES until DSDT
is loaded (BZ 365) - Status of the Global Initialization
Handler call not used (BZ 366) - Incorrect object parameter
to Global Initialization Handler (BZ 367)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 53 insertions, 42 deletions

diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c
index 0e493f2fec4d..a9cbee8e8b44 100644
--- a/drivers/acpi/resources/rsutils.c
+++ b/drivers/acpi/resources/rsutils.c
@@ -442,7 +442,7 @@ acpi_rs_set_resource_source(union aml_resource * aml,
  *
  * FUNCTION:    acpi_rs_get_prt_method_data
  *
- * PARAMETERS:  Handle          - Handle to the containing object
+ * PARAMETERS:  Node            - Device node
  *              ret_buffer      - Pointer to a buffer structure for the
  *                                results
  *
@@ -457,7 +457,8 @@ acpi_rs_set_resource_source(union aml_resource * aml,
  ******************************************************************************/
 
 acpi_status
-acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
+acpi_rs_get_prt_method_data(struct acpi_namespace_node * node,
+			    struct acpi_buffer * ret_buffer)
 {
 	union acpi_operand_object *obj_desc;
 	acpi_status status;
@@ -468,7 +469,7 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRT,
+	status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT,
 					 ACPI_BTYPE_PACKAGE, &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
@@ -490,7 +491,7 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
  *
  * FUNCTION:    acpi_rs_get_crs_method_data
  *
- * PARAMETERS:  Handle          - Handle to the containing object
+ * PARAMETERS:  Node            - Device node
  *              ret_buffer      - Pointer to a buffer structure for the
  *                                results
  *
@@ -505,7 +506,8 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer)
  ******************************************************************************/
 
 acpi_status
-acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
+acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
+			    struct acpi_buffer *ret_buffer)
 {
 	union acpi_operand_object *obj_desc;
 	acpi_status status;
@@ -516,7 +518,7 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(handle, METHOD_NAME__CRS,
+	status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS,
 					 ACPI_BTYPE_BUFFER, &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
@@ -539,7 +541,7 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
  *
  * FUNCTION:    acpi_rs_get_prs_method_data
  *
- * PARAMETERS:  Handle          - Handle to the containing object
+ * PARAMETERS:  Node            - Device node
  *              ret_buffer      - Pointer to a buffer structure for the
  *                                results
  *
@@ -555,7 +557,8 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
 
 #ifdef ACPI_FUTURE_USAGE
 acpi_status
-acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
+acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
+			    struct acpi_buffer *ret_buffer)
 {
 	union acpi_operand_object *obj_desc;
 	acpi_status status;
@@ -566,7 +569,7 @@ acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer)
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRS,
+	status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS,
 					 ACPI_BTYPE_BUFFER, &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
@@ -641,7 +644,7 @@ acpi_rs_get_method_data(acpi_handle handle,
  *
  * FUNCTION:    acpi_rs_set_srs_method_data
  *
- * PARAMETERS:  Handle          - Handle to the containing object
+ * PARAMETERS:  Node            - Device node
  *              in_buffer       - Pointer to a buffer structure of the
  *                                parameter
  *
@@ -653,23 +656,37 @@ acpi_rs_get_method_data(acpi_handle handle,
  *              If the function fails an appropriate status will be returned
  *              and the contents of the callers buffer is undefined.
  *
+ * Note: Parameters guaranteed valid by caller
+ *
  ******************************************************************************/
 
 acpi_status
-acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer)
+acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
+			    struct acpi_buffer *in_buffer)
 {
-	struct acpi_parameter_info info;
-	union acpi_operand_object *params[2];
+	struct acpi_evaluate_info *info;
+	union acpi_operand_object *args[2];
 	acpi_status status;
 	struct acpi_buffer buffer;
 
 	ACPI_FUNCTION_TRACE(rs_set_srs_method_data);
 
-	/* Parameters guaranteed valid by caller */
+	/* Allocate and initialize the evaluation information block */
+
+	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+	if (!info) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	info->prefix_node = node;
+	info->pathname = METHOD_NAME__SRS;
+	info->parameters = args;
+	info->parameter_type = ACPI_PARAM_ARGS;
+	info->flags = ACPI_IGNORE_RETURN_VALUE;
 
 	/*
 	 * The in_buffer parameter will point to a linked list of
-	 * resource parameters.  It needs to be formatted into a
+	 * resource parameters. It needs to be formatted into a
 	 * byte stream to be sent in as an input parameter to _SRS
 	 *
 	 * Convert the linked list into a byte stream
@@ -677,42 +694,36 @@ acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer)
 	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
 	status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer);
 	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+		goto cleanup;
 	}
 
-	/* Init the param object */
+	/* Create and initialize the method parameter object */
 
-	params[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
-	if (!params[0]) {
-		acpi_os_free(buffer.pointer);
-		return_ACPI_STATUS(AE_NO_MEMORY);
+	args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
+	if (!args[0]) {
+		/*
+		 * Must free the buffer allocated above (otherwise it is freed
+		 * later)
+		 */
+		ACPI_FREE(buffer.pointer);
+		status = AE_NO_MEMORY;
+		goto cleanup;
 	}
 
-	/* Set up the parameter object */
-
-	params[0]->buffer.length = (u32) buffer.length;
-	params[0]->buffer.pointer = buffer.pointer;
-	params[0]->common.flags = AOPOBJ_DATA_VALID;
-	params[1] = NULL;
+	args[0]->buffer.length = (u32) buffer.length;
+	args[0]->buffer.pointer = buffer.pointer;
+	args[0]->common.flags = AOPOBJ_DATA_VALID;
+	args[1] = NULL;
 
-	info.node = handle;
-	info.parameters = params;
-	info.parameter_type = ACPI_PARAM_ARGS;
+	/* Execute the method, no return value is expected */
 
-	/* Execute the method, no return value */
+	status = acpi_ns_evaluate(info);
 
-	status = acpi_ns_evaluate_relative(METHOD_NAME__SRS, &info);
-	if (ACPI_SUCCESS(status)) {
-
-		/* Delete any return object (especially if implicit_return is enabled) */
-
-		if (info.return_object) {
-			acpi_ut_remove_reference(info.return_object);
-		}
-	}
+	/* Clean up and return the status from acpi_ns_evaluate */
 
-	/* Clean up and return the status from acpi_ns_evaluate_relative */
+	acpi_ut_remove_reference(args[0]);
 
-	acpi_ut_remove_reference(params[0]);
+      cleanup:
+	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }