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hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf 
 kernel/drivers/acpi/acpica/dbmethod.c
....@@ -21,6 +21,8 @@
2121 acpi_db_walk_for_execute(acpi_handle obj_handle,
2222 			 u32 nesting_level, void *context, void **return_value);
2323 
24
+static acpi_status acpi_db_evaluate_object(struct acpi_namespace_node *node);
25
+
2426 /*******************************************************************************
2527  *
2628  * FUNCTION:    acpi_db_set_method_breakpoint
....@@ -302,6 +304,10 @@
302304 	}
303305 
304306 	status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
307
+	if (ACPI_FAILURE(status)) {
308
+		return (status);
309
+	}
310
+
305311 	walk_state->owner_id = obj_desc->method.owner_id;
306312 
307313 	/* Push start scope on scope stack and make it current */
....@@ -317,6 +323,10 @@
317323 	walk_state->parse_flags |= ACPI_PARSE_DISASSEMBLE;
318324 
319325 	status = acpi_ps_parse_aml(walk_state);
326
+	if (ACPI_FAILURE(status)) {
327
+		return (status);
328
+	}
329
+
320330 	(void)acpi_dm_parse_deferred_ops(op);
321331 
322332 	/* Now we can disassemble the method */
....@@ -338,42 +348,26 @@
338348 
339349 /*******************************************************************************
340350  *
341
- * FUNCTION:    acpi_db_walk_for_execute
351
+ * FUNCTION:    acpi_db_evaluate_object
342352  *
343
- * PARAMETERS:  Callback from walk_namespace
353
+ * PARAMETERS:  node                - Namespace node for the object
344354  *
345355  * RETURN:      Status
346356  *
347
- * DESCRIPTION: Batch execution module. Currently only executes predefined
348
- *              ACPI names.
357
+ * DESCRIPTION: Main execution function for the Evaluate/Execute/All debugger
358
+ *              commands.
349359  *
350360  ******************************************************************************/
351361 
352
-static acpi_status
353
-acpi_db_walk_for_execute(acpi_handle obj_handle,
354
-			 u32 nesting_level, void *context, void **return_value)
362
+static acpi_status acpi_db_evaluate_object(struct acpi_namespace_node *node)
355363 {
356
-	struct acpi_namespace_node *node =
357
-	    (struct acpi_namespace_node *)obj_handle;
358
-	struct acpi_db_execute_walk *info =
359
-	    (struct acpi_db_execute_walk *)context;
360
-	struct acpi_buffer return_obj;
361
-	acpi_status status;
362364 	char *pathname;
363365 	u32 i;
364366 	struct acpi_device_info *obj_info;
365367 	struct acpi_object_list param_objects;
366368 	union acpi_object params[ACPI_METHOD_NUM_ARGS];
367
-	const union acpi_predefined_info *predefined;
368
-
369
-	predefined = acpi_ut_match_predefined_method(node->name.ascii);
370
-	if (!predefined) {
371
-		return (AE_OK);
372
-	}
373
-
374
-	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
375
-		return (AE_OK);
376
-	}
369
+	struct acpi_buffer return_obj;
370
+	acpi_status status;
377371 
378372 	pathname = acpi_ns_get_external_pathname(node);
379373 	if (!pathname) {
....@@ -382,7 +376,7 @@
382376 
383377 	/* Get the object info for number of method parameters */
384378 
385
-	status = acpi_get_object_info(obj_handle, &obj_info);
379
+	status = acpi_get_object_info(node, &obj_info);
386380 	if (ACPI_FAILURE(status)) {
387381 		ACPI_FREE(pathname);
388382 		return (status);
....@@ -413,13 +407,66 @@
413407 	acpi_gbl_method_executing = TRUE;
414408 
415409 	status = acpi_evaluate_object(node, NULL, &param_objects, &return_obj);
410
+	acpi_gbl_method_executing = FALSE;
416411 
417412 	acpi_os_printf("%-32s returned %s\n", pathname,
418413 		       acpi_format_exception(status));
419
-	acpi_gbl_method_executing = FALSE;
414
+	if (return_obj.length) {
415
+		acpi_os_printf("Evaluation of %s returned object %p, "
416
+			       "external buffer length %X\n",
417
+			       pathname, return_obj.pointer,
418
+			       (u32)return_obj.length);
419
+
420
+		acpi_db_dump_external_object(return_obj.pointer, 1);
421
+		acpi_os_printf("\n");
422
+	}
423
+
420424 	ACPI_FREE(pathname);
421425 
422426 	/* Ignore status from method execution */
427
+
428
+	return (AE_OK);
429
+
430
+	/* Update count, check if we have executed enough methods */
431
+
432
+}
433
+
434
+/*******************************************************************************
435
+ *
436
+ * FUNCTION:    acpi_db_walk_for_execute
437
+ *
438
+ * PARAMETERS:  Callback from walk_namespace
439
+ *
440
+ * RETURN:      Status
441
+ *
442
+ * DESCRIPTION: Batch execution function. Evaluates all "predefined" objects --
443
+ *              the nameseg begins with an underscore.
444
+ *
445
+ ******************************************************************************/
446
+
447
+static acpi_status
448
+acpi_db_walk_for_execute(acpi_handle obj_handle,
449
+			 u32 nesting_level, void *context, void **return_value)
450
+{
451
+	struct acpi_namespace_node *node =
452
+	    (struct acpi_namespace_node *)obj_handle;
453
+	struct acpi_db_execute_walk *info =
454
+	    (struct acpi_db_execute_walk *)context;
455
+	acpi_status status;
456
+	const union acpi_predefined_info *predefined;
457
+
458
+	predefined = acpi_ut_match_predefined_method(node->name.ascii);
459
+	if (!predefined) {
460
+		return (AE_OK);
461
+	}
462
+
463
+	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
464
+		return (AE_OK);
465
+	}
466
+
467
+	acpi_db_evaluate_object(node);
468
+
469
+	/* Ignore status from object evaluation */
423470 
424471 	status = AE_OK;
425472 
....@@ -430,6 +477,52 @@
430477 		status = AE_CTRL_TERMINATE;
431478 	}
432479 
480
+	return (status);
481
+}
482
+
483
+/*******************************************************************************
484
+ *
485
+ * FUNCTION:    acpi_db_walk_for_execute_all
486
+ *
487
+ * PARAMETERS:  Callback from walk_namespace
488
+ *
489
+ * RETURN:      Status
490
+ *
491
+ * DESCRIPTION: Batch execution function. Evaluates all objects whose path ends
492
+ *              with the nameseg "Info->NameSeg". Used for the "ALL" command.
493
+ *
494
+ ******************************************************************************/
495
+
496
+static acpi_status
497
+acpi_db_walk_for_execute_all(acpi_handle obj_handle,
498
+			     u32 nesting_level,
499
+			     void *context, void **return_value)
500
+{
501
+	struct acpi_namespace_node *node =
502
+	    (struct acpi_namespace_node *)obj_handle;
503
+	struct acpi_db_execute_walk *info =
504
+	    (struct acpi_db_execute_walk *)context;
505
+	acpi_status status;
506
+
507
+	if (!ACPI_COMPARE_NAMESEG(node->name.ascii, info->name_seg)) {
508
+		return (AE_OK);
509
+	}
510
+
511
+	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
512
+		return (AE_OK);
513
+	}
514
+
515
+	/* Now evaluate the input object (node) */
516
+
517
+	acpi_db_evaluate_object(node);
518
+
519
+	/* Ignore status from method execution */
520
+
521
+	status = AE_OK;
522
+
523
+	/* Update count of executed methods/objects */
524
+
525
+	info->count++;
433526 	return (status);
434527 }
435528 
....@@ -462,3 +555,35 @@
462555 	acpi_os_printf("Evaluated %u predefined names in the namespace\n",
463556 		       info.count);
464557 }
558
+
559
+/*******************************************************************************
560
+ *
561
+ * FUNCTION:    acpi_db_evaluate_all
562
+ *
563
+ * PARAMETERS:  none_acpi_gbl_db_method_info
564
+ *
565
+ * RETURN:      None
566
+ *
567
+ * DESCRIPTION: Namespace batch execution. Implements the "ALL" command.
568
+ *              Execute all namepaths whose final nameseg matches the
569
+ *              input nameseg.
570
+ *
571
+ ******************************************************************************/
572
+
573
+void acpi_db_evaluate_all(char *name_seg)
574
+{
575
+	struct acpi_db_execute_walk info;
576
+
577
+	info.count = 0;
578
+	info.max_count = ACPI_UINT32_MAX;
579
+	ACPI_COPY_NAMESEG(info.name_seg, name_seg);
580
+	info.name_seg[ACPI_NAMESEG_SIZE] = 0;
581
+
582
+	/* Search all nodes in namespace */
583
+
584
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
585
+				  ACPI_UINT32_MAX, acpi_db_walk_for_execute_all,
586
+				  NULL, (void *)&info, NULL);
587
+
588
+	acpi_os_printf("Evaluated %u names in the namespace\n", info.count);
589
+}