Merge tag 'acpi-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to the 20180508 upstream
  revision and make it support the RT patch, add CPPC v3 support to the
  ACPI CPPC library, add a WDAT-based watchdog quirk to prevent clashes
  with the RTC, add quirks to the ACPI AC and battery drivers, and
  update the ACPI SoC drivers.

  Specifics:

   - Update the ACPICA code in the kernel to the 20180508 upstream
     revision including:
       * iASL -tc option enhancement (Bob Moore).
       * Debugger improvements (Bob Moore).
       * Support for tables larger than 1 MB in acpidump/acpixtract (Bob
         Moore).
       * Minor fixes and cleanups (Colin Ian King, Toomas Soome).

   - Make the ACPICA code in the kernel support the RT patch (Sebastian
     Andrzej Siewior, Steven Rostedt).

   - Add a kmemleak annotation to the ACPICA code (Larry Finger).

   - Add CPPC v3 support to the ACPI CPPC library and fix two issues
     related to CPPC (Prashanth Prakash, Al Stone).

   - Add an ACPI WDAT-based watchdog quirk to prefer iTCO_wdt on systems
     where WDAT clashes with the RTC SRAM (Mika Westerberg).

   - Add some quirks to the ACPI AC and battery drivers (Carlo Caione,
     Hans de Goede).

   - Update the ACPI SoC drivers for Intel (LPSS) and AMD (APD)
     platforms (Akshu Agrawal, Hans de Goede).

   - Fix up some assorted minor issues (Al Stone, Laszlo Toth, Mathieu
     Malaterre)"

* tag 'acpi-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  ACPICA: Mark acpi_ut_create_internal_object_dbg() memory allocations as non-leaks
  ACPI / watchdog: Prefer iTCO_wdt always when WDAT table uses RTC SRAM
  mailbox: PCC: erroneous error message when parsing ACPI PCCT
  ACPICA: Update version to 20180508
  ACPICA: acpidump/acpixtract: Support for tables larger than 1MB
  ACPI: APD: Add AMD misc clock handler support
  clk: x86: Add ST oscout platform clock
  ACPICA: Update version to 20180427
  ACPICA: Debugger: Removed direct support for EC address space in "Test Objects"
  ACPICA: Debugger: Add Package support for "test objects" command
  ACPICA: Improve error messages for the namespace root node
  ACPICA: Fix potential infinite loop in acpi_rs_dump_byte_list
  ACPICA: vsnprintf: this statement may fall through
  ACPICA: Tables: Fix spelling mistake in comment
  ACPICA: iASL: Enhance the -tc option (create AML hex file in C)
  ACPI: Add missing prototype_for arch_post_acpi_subsys_init()
  ACPI / tables: improve comments regarding acpi_parse_entries_array()
  ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock
  ACPICA: provide abstraction for raw_spinlock_t
  ACPI / CPPC: Fix invalid PCC channel status errors
  ...

drivers/acpi/acpica/acapps.h

@@ -143,6 +143,8 @@ acpi_status
 fl_split_input_pathname(char *input_path,
 			char **out_directory_path, char **out_filename);
 
+char *fl_get_file_basename(char *file_pathname);
+
 char *ad_generate_filename(char *prefix, char *table_id);
 
 void

drivers/acpi/acpica/acglobal.h

@@ -82,7 +82,7 @@ ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
  * interrupt level
  */
 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock);	/* For GPE data structs and registers */
-ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock);	/* For ACPI H/W except GPE registers */
+ACPI_GLOBAL(acpi_raw_spinlock, acpi_gbl_hardware_lock);	/* For ACPI H/W except GPE registers */
 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
 
 /* Mutex for _OSI support */

drivers/acpi/acpica/dbnames.c

@@ -189,9 +189,15 @@ void acpi_db_dump_namespace(char *start_arg, char *depth_arg)
 	}
 
 	acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT);
-	acpi_os_printf("ACPI Namespace (from %4.4s (%p) subtree):\n",
-		       ((struct acpi_namespace_node *)subtree_entry)->name.
-		       ascii, subtree_entry);
+
+	if (((struct acpi_namespace_node *)subtree_entry)->parent) {
+		acpi_os_printf("ACPI Namespace (from %4.4s (%p) subtree):\n",
+			       ((struct acpi_namespace_node *)subtree_entry)->
+			       name.ascii, subtree_entry);
+	} else {
+		acpi_os_printf("ACPI Namespace (from %s):\n",
+			       ACPI_NAMESPACE_ROOT);
+	}
 
 	/* Display the subtree */
 

drivers/acpi/acpica/dbtest.c

@@ -30,6 +30,8 @@ acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length);
 static acpi_status
 acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length);
 
+static acpi_status acpi_db_test_package_type(struct acpi_namespace_node *node);
+
 static acpi_status
 acpi_db_read_from_object(struct acpi_namespace_node *node,
 			 acpi_object_type expected_type,
@@ -273,6 +275,11 @@ acpi_db_test_one_object(acpi_handle obj_handle,
 		bit_length = byte_length * 8;
 		break;
 
+	case ACPI_TYPE_PACKAGE:
+
+		local_type = ACPI_TYPE_PACKAGE;
+		break;
+
 	case ACPI_TYPE_FIELD_UNIT:
 	case ACPI_TYPE_BUFFER_FIELD:
 	case ACPI_TYPE_LOCAL_REGION_FIELD:
@@ -305,6 +312,7 @@ acpi_db_test_one_object(acpi_handle obj_handle,
 
 	acpi_os_printf("%14s: %4.4s",
 		       acpi_ut_get_type_name(node->type), node->name.ascii);
+
 	if (!obj_desc) {
 		acpi_os_printf(" Ignoring, no attached object\n");
 		return (AE_OK);
@@ -322,14 +330,13 @@ acpi_db_test_one_object(acpi_handle obj_handle,
 		case ACPI_ADR_SPACE_SYSTEM_MEMORY:
 		case ACPI_ADR_SPACE_SYSTEM_IO:
 		case ACPI_ADR_SPACE_PCI_CONFIG:
-		case ACPI_ADR_SPACE_EC:
 
 			break;
 
 		default:
 
 			acpi_os_printf
-			    ("    %s space is not supported [%4.4s]\n",
+			    ("    %s space is not supported in this command [%4.4s]\n",
 			     acpi_ut_get_region_name(region_obj->region.
 						     space_id),
 			     region_obj->region.node->name.ascii);
@@ -359,6 +366,11 @@ acpi_db_test_one_object(acpi_handle obj_handle,
 		status = acpi_db_test_buffer_type(node, bit_length);
 		break;
 
+	case ACPI_TYPE_PACKAGE:
+
+		status = acpi_db_test_package_type(node);
+		break;
+
 	default:
 
 		acpi_os_printf(" Ignoring, type not implemented (%2.2X)",
@@ -366,6 +378,13 @@ acpi_db_test_one_object(acpi_handle obj_handle,
 		break;
 	}
 
+	/* Exit on error, but don't abort the namespace walk */
+
+	if (ACPI_FAILURE(status)) {
+		status = AE_OK;
+		goto exit;
+	}
+
 	switch (node->type) {
 	case ACPI_TYPE_LOCAL_REGION_FIELD:
 
@@ -373,12 +392,14 @@ acpi_db_test_one_object(acpi_handle obj_handle,
 		acpi_os_printf(" (%s)",
 			       acpi_ut_get_region_name(region_obj->region.
 						       space_id));
+
 		break;
 
 	default:
 		break;
 	}
 
+exit:
 	acpi_os_printf("\n");
 	return (status);
 }
@@ -431,7 +452,6 @@ acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length)
 	if (temp1->integer.value == value_to_write) {
 		value_to_write = 0;
 	}
-
 	/* Write a new value */
 
 	write_value.type = ACPI_TYPE_INTEGER;
@@ -706,6 +726,35 @@ exit:
 	return (status);
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_test_package_type
+ *
+ * PARAMETERS:  node                - Parent NS node for the object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Test read for a Package object.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_db_test_package_type(struct acpi_namespace_node *node)
+{
+	union acpi_object *temp1 = NULL;
+	acpi_status status;
+
+	/* Read the original value */
+
+	status = acpi_db_read_from_object(node, ACPI_TYPE_PACKAGE, &temp1);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	acpi_os_printf(" %8.8X Elements", temp1->package.count);
+	acpi_os_free(temp1);
+	return (status);
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_db_read_from_object
@@ -746,8 +795,8 @@ acpi_db_read_from_object(struct acpi_namespace_node *node,
 	acpi_gbl_method_executing = TRUE;
 	status = acpi_evaluate_object(read_handle, NULL,
 				      &param_objects, &return_obj);
-	acpi_gbl_method_executing = FALSE;
 
+	acpi_gbl_method_executing = FALSE;
 	if (ACPI_FAILURE(status)) {
 		acpi_os_printf("Could not read from object, %s",
 			       acpi_format_exception(status));
@@ -760,6 +809,7 @@ acpi_db_read_from_object(struct acpi_namespace_node *node,
 	case ACPI_TYPE_INTEGER:
 	case ACPI_TYPE_BUFFER:
 	case ACPI_TYPE_STRING:
+	case ACPI_TYPE_PACKAGE:
 		/*
 		 * Did we receive the type we wanted? Most important for the
 		 * Integer/Buffer case (when a field is larger than an Integer,
@@ -771,6 +821,7 @@ acpi_db_read_from_object(struct acpi_namespace_node *node,
 			     acpi_ut_get_type_name(expected_type),
 			     acpi_ut_get_type_name(ret_value->type));
 
+			acpi_os_free(return_obj.pointer);
 			return (AE_TYPE);
 		}
 

drivers/acpi/acpica/dswscope.c

@@ -115,7 +115,7 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
 				      acpi_ut_get_type_name(old_scope_info->
 							    common.value)));
 	} else {
-		ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (%s)", "ROOT"));
+		ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, ACPI_NAMESPACE_ROOT));
 	}
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
@@ -166,14 +166,14 @@ acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state)
 
 	new_scope_info = walk_state->scope_info;
 	if (new_scope_info) {
-		ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
-				      "[%4.4s] (%s)\n",
+		ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[%4.4s] (%s)\n",
 				      acpi_ut_get_node_name(new_scope_info->
 							    scope.node),
 				      acpi_ut_get_type_name(new_scope_info->
 							    common.value)));
 	} else {
-		ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (ROOT)\n"));
+		ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "%s\n",
+				      ACPI_NAMESPACE_ROOT));
 	}
 
 	acpi_ut_delete_generic_state(scope_info);

drivers/acpi/acpica/hwregs.c

@@ -390,14 +390,14 @@ acpi_status acpi_hw_clear_acpi_status(void)
 			  ACPI_BITMASK_ALL_FIXED_STATUS,
 			  ACPI_FORMAT_UINT64(acpi_gbl_xpm1a_status.address)));
 
-	lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+	lock_flags = acpi_os_acquire_raw_lock(acpi_gbl_hardware_lock);
 
 	/* Clear the fixed events in PM1 A/B */
 
 	status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
 					ACPI_BITMASK_ALL_FIXED_STATUS);
 
-	acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
+	acpi_os_release_raw_lock(acpi_gbl_hardware_lock, lock_flags);
 
 	if (ACPI_FAILURE(status)) {
 		goto exit;

drivers/acpi/acpica/hwxface.c

@@ -227,7 +227,7 @@ acpi_status acpi_write_bit_register(u32 register_id, u32 value)
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+	lock_flags = acpi_os_acquire_raw_lock(acpi_gbl_hardware_lock);
 
 	/*
 	 * At this point, we know that the parent register is one of the
@@ -288,7 +288,7 @@ acpi_status acpi_write_bit_register(u32 register_id, u32 value)
 
 unlock_and_exit:
 
-	acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
+	acpi_os_release_raw_lock(acpi_gbl_hardware_lock, lock_flags);
 	return_ACPI_STATUS(status);
 }
 

drivers/acpi/acpica/rsdump.c

@@ -539,7 +539,7 @@ static void acpi_rs_out_title(const char *title)
 
 static void acpi_rs_dump_byte_list(u16 length, u8 * data)
 {
-	u8 i;
+	u16 i;
 
 	for (i = 0; i < length; i++) {
 		acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);

drivers/acpi/acpica/tbinstal.c

@@ -88,7 +88,7 @@ acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc,
  * DESCRIPTION: This function is called to verify and install an ACPI table.
  *              When this function is called by "Load" or "LoadTable" opcodes,
  *              or by acpi_load_table() API, the "Reload" parameter is set.
- *              After sucessfully returning from this function, table is
+ *              After successfully returning from this function, table is
  *              "INSTALLED" but not "VALIDATED".
  *
  ******************************************************************************/

drivers/acpi/acpica/utbuffer.c

@@ -53,7 +53,7 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
 
 		/* Print current offset */
 
-		acpi_os_printf("%6.4X: ", (base_offset + i));
+		acpi_os_printf("%8.4X: ", (base_offset + i));
 
 		/* Print 16 hex chars */
 
@@ -219,7 +219,7 @@ acpi_ut_dump_buffer_to_file(ACPI_FILE file,
 
 		/* Print current offset */
 
-		fprintf(file, "%6.4X: ", (base_offset + i));
+		fprintf(file, "%8.4X: ", (base_offset + i));
 
 		/* Print 16 hex chars */
 

drivers/acpi/acpica/utmutex.c

@@ -52,7 +52,7 @@ acpi_status acpi_ut_mutex_initialize(void)
 		return_ACPI_STATUS (status);
 	}
 
-	status = acpi_os_create_lock (&acpi_gbl_hardware_lock);
+	status = acpi_os_create_raw_lock(&acpi_gbl_hardware_lock);
 	if (ACPI_FAILURE (status)) {
 		return_ACPI_STATUS (status);
 	}
@@ -109,7 +109,7 @@ void acpi_ut_mutex_terminate(void)
 	/* Delete the spinlocks */
 
 	acpi_os_delete_lock(acpi_gbl_gpe_lock);
-	acpi_os_delete_lock(acpi_gbl_hardware_lock);
+	acpi_os_delete_raw_lock(acpi_gbl_hardware_lock);
 	acpi_os_delete_lock(acpi_gbl_reference_count_lock);
 
 	/* Delete the reader/writer lock */

drivers/acpi/acpica/utobject.c

@@ -8,6 +8,7 @@
  *****************************************************************************/
 
 #include <acpi/acpi.h>
+#include <linux/kmemleak.h>
 #include "accommon.h"
 #include "acnamesp.h"
 
@@ -70,6 +71,7 @@ union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
 	if (!object) {
 		return_PTR(NULL);
 	}
+	kmemleak_not_leak(object);
 
 	switch (type) {
 	case ACPI_TYPE_REGION:

drivers/acpi/acpica/utprint.c

@@ -470,6 +470,7 @@ int vsnprintf(char *string, acpi_size size, const char *format, va_list args)
 		case 'X':
 
 			type |= ACPI_FORMAT_UPPER;
+			/* FALLTHROUGH */
 
 		case 'x':
 

drivers/acpi/acpica/utstring.c

@@ -141,7 +141,7 @@ void acpi_ut_repair_name(char *name)
 	 * Special case for the root node. This can happen if we get an
 	 * error during the execution of module-level code.
 	 */
-	if (ACPI_COMPARE_NAME(name, "\\___")) {
+	if (ACPI_COMPARE_NAME(name, ACPI_ROOT_PATHNAME)) {
 		return;
 	}