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-rw-r--r--drivers/acpi/acpica/dbobject.c516
1 files changed, 516 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/dbobject.c b/drivers/acpi/acpica/dbobject.c
new file mode 100644
index 000000000..4b4c530a0
--- /dev/null
+++ b/drivers/acpi/acpica/dbobject.c
@@ -0,0 +1,516 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*******************************************************************************
+ *
+ * Module Name: dbobject - ACPI object decode and display
+ *
+ ******************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+
+#define _COMPONENT ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbobject")
+
+/* Local prototypes */
+static void acpi_db_decode_node(struct acpi_namespace_node *node);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_dump_method_info
+ *
+ * PARAMETERS: status - Method execution status
+ * walk_state - Current state of the parse tree walk
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Called when a method has been aborted because of an error.
+ * Dumps the method execution stack, and the method locals/args,
+ * and disassembles the AML opcode that failed.
+ *
+ ******************************************************************************/
+
+void
+acpi_db_dump_method_info(acpi_status status, struct acpi_walk_state *walk_state)
+{
+ struct acpi_thread_state *thread;
+ struct acpi_namespace_node *node;
+
+ node = walk_state->method_node;
+
+ /* There are no locals or arguments for the module-level code case */
+
+ if (node == acpi_gbl_root_node) {
+ return;
+ }
+
+ /* Ignore control codes, they are not errors */
+
+ if ((status & AE_CODE_MASK) == AE_CODE_CONTROL) {
+ return;
+ }
+
+ /* We may be executing a deferred opcode */
+
+ if (walk_state->deferred_node) {
+ acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
+ return;
+ }
+
+ /*
+ * If there is no Thread, we are not actually executing a method.
+ * This can happen when the iASL compiler calls the interpreter
+ * to perform constant folding.
+ */
+ thread = walk_state->thread;
+ if (!thread) {
+ return;
+ }
+
+ /* Display the method locals and arguments */
+
+ acpi_os_printf("\n");
+ acpi_db_decode_locals(walk_state);
+ acpi_os_printf("\n");
+ acpi_db_decode_arguments(walk_state);
+ acpi_os_printf("\n");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_decode_internal_object
+ *
+ * PARAMETERS: obj_desc - Object to be displayed
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Short display of an internal object. Numbers/Strings/Buffers.
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_internal_object(union acpi_operand_object *obj_desc)
+{
+ u32 i;
+
+ if (!obj_desc) {
+ acpi_os_printf(" Uninitialized");
+ return;
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
+ acpi_os_printf(" %p [%s]", obj_desc,
+ acpi_ut_get_descriptor_name(obj_desc));
+ return;
+ }
+
+ acpi_os_printf(" %s", acpi_ut_get_object_type_name(obj_desc));
+
+ switch (obj_desc->common.type) {
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf(" %8.8X%8.8X",
+ ACPI_FORMAT_UINT64(obj_desc->integer.value));
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf("(%u) \"%.60s",
+ obj_desc->string.length,
+ obj_desc->string.pointer);
+
+ if (obj_desc->string.length > 60) {
+ acpi_os_printf("...");
+ } else {
+ acpi_os_printf("\"");
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ acpi_os_printf("(%u)", obj_desc->buffer.length);
+ for (i = 0; (i < 8) && (i < obj_desc->buffer.length); i++) {
+ acpi_os_printf(" %2.2X", obj_desc->buffer.pointer[i]);
+ }
+ break;
+
+ default:
+
+ acpi_os_printf(" %p", obj_desc);
+ break;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_decode_node
+ *
+ * PARAMETERS: node - Object to be displayed
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Short display of a namespace node
+ *
+ ******************************************************************************/
+
+static void acpi_db_decode_node(struct acpi_namespace_node *node)
+{
+
+ acpi_os_printf("<Node> Name %4.4s",
+ acpi_ut_get_node_name(node));
+
+ if (node->flags & ANOBJ_METHOD_ARG) {
+ acpi_os_printf(" [Method Arg]");
+ }
+ if (node->flags & ANOBJ_METHOD_LOCAL) {
+ acpi_os_printf(" [Method Local]");
+ }
+
+ switch (node->type) {
+
+ /* These types have no attached object */
+
+ case ACPI_TYPE_DEVICE:
+
+ acpi_os_printf(" Device");
+ break;
+
+ case ACPI_TYPE_THERMAL:
+
+ acpi_os_printf(" Thermal Zone");
+ break;
+
+ default:
+
+ acpi_db_decode_internal_object(acpi_ns_get_attached_object
+ (node));
+ break;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_display_internal_object
+ *
+ * PARAMETERS: obj_desc - Object to be displayed
+ * walk_state - Current walk state
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Short display of an internal object
+ *
+ ******************************************************************************/
+
+void
+acpi_db_display_internal_object(union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ u8 type;
+
+ acpi_os_printf("%p ", obj_desc);
+
+ if (!obj_desc) {
+ acpi_os_printf("<Null Object>\n");
+ return;
+ }
+
+ /* Decode the object type */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+ case ACPI_DESC_TYPE_PARSER:
+
+ acpi_os_printf("<Parser> ");
+ break;
+
+ case ACPI_DESC_TYPE_NAMED:
+
+ acpi_db_decode_node((struct acpi_namespace_node *)obj_desc);
+ break;
+
+ case ACPI_DESC_TYPE_OPERAND:
+
+ type = obj_desc->common.type;
+ if (type > ACPI_TYPE_LOCAL_MAX) {
+ acpi_os_printf(" Type %X [Invalid Type]", (u32)type);
+ return;
+ }
+
+ /* Decode the ACPI object type */
+
+ switch (obj_desc->common.type) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ acpi_os_printf("[%s] ",
+ acpi_ut_get_reference_name(obj_desc));
+
+ /* Decode the reference */
+
+ switch (obj_desc->reference.class) {
+ case ACPI_REFCLASS_LOCAL:
+
+ acpi_os_printf("%X ",
+ obj_desc->reference.value);
+ if (walk_state) {
+ obj_desc = walk_state->local_variables
+ [obj_desc->reference.value].object;
+ acpi_os_printf("%p", obj_desc);
+ acpi_db_decode_internal_object
+ (obj_desc);
+ }
+ break;
+
+ case ACPI_REFCLASS_ARG:
+
+ acpi_os_printf("%X ",
+ obj_desc->reference.value);
+ if (walk_state) {
+ obj_desc = walk_state->arguments
+ [obj_desc->reference.value].object;
+ acpi_os_printf("%p", obj_desc);
+ acpi_db_decode_internal_object
+ (obj_desc);
+ }
+ break;
+
+ case ACPI_REFCLASS_INDEX:
+
+ switch (obj_desc->reference.target_type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ acpi_os_printf("%p",
+ obj_desc->reference.
+ object);
+ acpi_db_decode_internal_object
+ (obj_desc->reference.object);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ acpi_os_printf("%p",
+ obj_desc->reference.
+ where);
+ if (!obj_desc->reference.where) {
+ acpi_os_printf
+ (" Uninitialized WHERE pointer");
+ } else {
+ acpi_db_decode_internal_object(*
+ (obj_desc->
+ reference.
+ where));
+ }
+ break;
+
+ default:
+
+ acpi_os_printf
+ ("Unknown index target type");
+ break;
+ }
+ break;
+
+ case ACPI_REFCLASS_REFOF:
+
+ if (!obj_desc->reference.object) {
+ acpi_os_printf
+ ("Uninitialized reference subobject pointer");
+ break;
+ }
+
+ /* Reference can be to a Node or an Operand object */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE
+ (obj_desc->reference.object)) {
+ case ACPI_DESC_TYPE_NAMED:
+
+ acpi_db_decode_node(obj_desc->reference.
+ object);
+ break;
+
+ case ACPI_DESC_TYPE_OPERAND:
+
+ acpi_db_decode_internal_object
+ (obj_desc->reference.object);
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case ACPI_REFCLASS_NAME:
+
+ acpi_db_decode_node(obj_desc->reference.node);
+ break;
+
+ case ACPI_REFCLASS_DEBUG:
+ case ACPI_REFCLASS_TABLE:
+
+ acpi_os_printf("\n");
+ break;
+
+ default: /* Unknown reference class */
+
+ acpi_os_printf("%2.2X\n",
+ obj_desc->reference.class);
+ break;
+ }
+ break;
+
+ default:
+
+ acpi_os_printf("<Obj> ");
+ acpi_db_decode_internal_object(obj_desc);
+ break;
+ }
+ break;
+
+ default:
+
+ acpi_os_printf("<Not a valid ACPI Object Descriptor> [%s]",
+ acpi_ut_get_descriptor_name(obj_desc));
+ break;
+ }
+
+ acpi_os_printf("\n");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_decode_locals
+ *
+ * PARAMETERS: walk_state - State for current method
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Display all locals for the currently running control method
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_locals(struct acpi_walk_state *walk_state)
+{
+ u32 i;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ u8 display_locals = FALSE;
+
+ node = walk_state->method_node;
+
+ /* There are no locals for the module-level code case */
+
+ if (node == acpi_gbl_root_node) {
+ return;
+ }
+
+ if (!node) {
+ acpi_os_printf
+ ("No method node (Executing subtree for buffer or opregion)\n");
+ return;
+ }
+
+ if (node->type != ACPI_TYPE_METHOD) {
+ acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
+ return;
+ }
+
+ /* Are any locals actually set? */
+
+ for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
+ obj_desc = walk_state->local_variables[i].object;
+ if (obj_desc) {
+ display_locals = TRUE;
+ break;
+ }
+ }
+
+ /* If any are set, only display the ones that are set */
+
+ if (display_locals) {
+ acpi_os_printf
+ ("\nInitialized Local Variables for Method [%4.4s]:\n",
+ acpi_ut_get_node_name(node));
+
+ for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
+ obj_desc = walk_state->local_variables[i].object;
+ if (obj_desc) {
+ acpi_os_printf(" Local%X: ", i);
+ acpi_db_display_internal_object(obj_desc,
+ walk_state);
+ }
+ }
+ } else {
+ acpi_os_printf
+ ("No Local Variables are initialized for Method [%4.4s]\n",
+ acpi_ut_get_node_name(node));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_db_decode_arguments
+ *
+ * PARAMETERS: walk_state - State for current method
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Display all arguments for the currently running control method
+ *
+ ******************************************************************************/
+
+void acpi_db_decode_arguments(struct acpi_walk_state *walk_state)
+{
+ u32 i;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ u8 display_args = FALSE;
+
+ node = walk_state->method_node;
+
+ /* There are no arguments for the module-level code case */
+
+ if (node == acpi_gbl_root_node) {
+ return;
+ }
+
+ if (!node) {
+ acpi_os_printf
+ ("No method node (Executing subtree for buffer or opregion)\n");
+ return;
+ }
+
+ if (node->type != ACPI_TYPE_METHOD) {
+ acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
+ return;
+ }
+
+ /* Are any arguments actually set? */
+
+ for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
+ obj_desc = walk_state->arguments[i].object;
+ if (obj_desc) {
+ display_args = TRUE;
+ break;
+ }
+ }
+
+ /* If any are set, only display the ones that are set */
+
+ if (display_args) {
+ acpi_os_printf("Initialized Arguments for Method [%4.4s]: "
+ "(%X arguments defined for method invocation)\n",
+ acpi_ut_get_node_name(node),
+ node->object->method.param_count);
+
+ for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
+ obj_desc = walk_state->arguments[i].object;
+ if (obj_desc) {
+ acpi_os_printf(" Arg%u: ", i);
+ acpi_db_display_internal_object(obj_desc,
+ walk_state);
+ }
+ }
+ } else {
+ acpi_os_printf
+ ("No Arguments are initialized for method [%4.4s]\n",
+ acpi_ut_get_node_name(node));
+ }
+}
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