xref: /openbmc/linux/drivers/acpi/acpica/uterror.c (revision 612a462a)
1 /*******************************************************************************
2  *
3  * Module Name: uterror - Various internal error/warning output functions
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2017, Intel Corp.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions, and the following disclaimer,
16  *    without modification.
17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18  *    substantially similar to the "NO WARRANTY" disclaimer below
19  *    ("Disclaimer") and any redistribution must be conditioned upon
20  *    including a substantially similar Disclaimer requirement for further
21  *    binary redistribution.
22  * 3. Neither the names of the above-listed copyright holders nor the names
23  *    of any contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * Alternatively, this software may be distributed under the terms of the
27  * GNU General Public License ("GPL") version 2 as published by the Free
28  * Software Foundation.
29  *
30  * NO WARRANTY
31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41  * POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 #include <acpi/acpi.h>
45 #include "accommon.h"
46 #include "acnamesp.h"
47 
48 #define _COMPONENT          ACPI_UTILITIES
49 ACPI_MODULE_NAME("uterror")
50 
51 /*
52  * This module contains internal error functions that may
53  * be configured out.
54  */
55 #if !defined (ACPI_NO_ERROR_MESSAGES)
56 /*******************************************************************************
57  *
58  * FUNCTION:    acpi_ut_predefined_warning
59  *
60  * PARAMETERS:  module_name     - Caller's module name (for error output)
61  *              line_number     - Caller's line number (for error output)
62  *              pathname        - Full pathname to the node
63  *              node_flags      - From Namespace node for the method/object
64  *              format          - Printf format string + additional args
65  *
66  * RETURN:      None
67  *
68  * DESCRIPTION: Warnings for the predefined validation module. Messages are
69  *              only emitted the first time a problem with a particular
70  *              method/object is detected. This prevents a flood of error
71  *              messages for methods that are repeatedly evaluated.
72  *
73  ******************************************************************************/
74 void ACPI_INTERNAL_VAR_XFACE
75 acpi_ut_predefined_warning(const char *module_name,
76 			   u32 line_number,
77 			   char *pathname,
78 			   u8 node_flags, const char *format, ...)
79 {
80 	va_list arg_list;
81 
82 	/*
83 	 * Warning messages for this method/object will be disabled after the
84 	 * first time a validation fails or an object is successfully repaired.
85 	 */
86 	if (node_flags & ANOBJ_EVALUATED) {
87 		return;
88 	}
89 
90 	acpi_os_printf(ACPI_MSG_WARNING "%s: ", pathname);
91 
92 	va_start(arg_list, format);
93 	acpi_os_vprintf(format, arg_list);
94 	ACPI_MSG_SUFFIX;
95 	va_end(arg_list);
96 }
97 
98 /*******************************************************************************
99  *
100  * FUNCTION:    acpi_ut_predefined_info
101  *
102  * PARAMETERS:  module_name     - Caller's module name (for error output)
103  *              line_number     - Caller's line number (for error output)
104  *              pathname        - Full pathname to the node
105  *              node_flags      - From Namespace node for the method/object
106  *              format          - Printf format string + additional args
107  *
108  * RETURN:      None
109  *
110  * DESCRIPTION: Info messages for the predefined validation module. Messages
111  *              are only emitted the first time a problem with a particular
112  *              method/object is detected. This prevents a flood of
113  *              messages for methods that are repeatedly evaluated.
114  *
115  ******************************************************************************/
116 
117 void ACPI_INTERNAL_VAR_XFACE
118 acpi_ut_predefined_info(const char *module_name,
119 			u32 line_number,
120 			char *pathname, u8 node_flags, const char *format, ...)
121 {
122 	va_list arg_list;
123 
124 	/*
125 	 * Warning messages for this method/object will be disabled after the
126 	 * first time a validation fails or an object is successfully repaired.
127 	 */
128 	if (node_flags & ANOBJ_EVALUATED) {
129 		return;
130 	}
131 
132 	acpi_os_printf(ACPI_MSG_INFO "%s: ", pathname);
133 
134 	va_start(arg_list, format);
135 	acpi_os_vprintf(format, arg_list);
136 	ACPI_MSG_SUFFIX;
137 	va_end(arg_list);
138 }
139 
140 /*******************************************************************************
141  *
142  * FUNCTION:    acpi_ut_predefined_bios_error
143  *
144  * PARAMETERS:  module_name     - Caller's module name (for error output)
145  *              line_number     - Caller's line number (for error output)
146  *              pathname        - Full pathname to the node
147  *              node_flags      - From Namespace node for the method/object
148  *              format          - Printf format string + additional args
149  *
150  * RETURN:      None
151  *
152  * DESCRIPTION: BIOS error message for predefined names. Messages
153  *              are only emitted the first time a problem with a particular
154  *              method/object is detected. This prevents a flood of
155  *              messages for methods that are repeatedly evaluated.
156  *
157  ******************************************************************************/
158 
159 void ACPI_INTERNAL_VAR_XFACE
160 acpi_ut_predefined_bios_error(const char *module_name,
161 			      u32 line_number,
162 			      char *pathname,
163 			      u8 node_flags, const char *format, ...)
164 {
165 	va_list arg_list;
166 
167 	/*
168 	 * Warning messages for this method/object will be disabled after the
169 	 * first time a validation fails or an object is successfully repaired.
170 	 */
171 	if (node_flags & ANOBJ_EVALUATED) {
172 		return;
173 	}
174 
175 	acpi_os_printf(ACPI_MSG_BIOS_ERROR "%s: ", pathname);
176 
177 	va_start(arg_list, format);
178 	acpi_os_vprintf(format, arg_list);
179 	ACPI_MSG_SUFFIX;
180 	va_end(arg_list);
181 }
182 
183 /*******************************************************************************
184  *
185  * FUNCTION:    acpi_ut_namespace_error
186  *
187  * PARAMETERS:  module_name         - Caller's module name (for error output)
188  *              line_number         - Caller's line number (for error output)
189  *              internal_name       - Name or path of the namespace node
190  *              lookup_status       - Exception code from NS lookup
191  *
192  * RETURN:      None
193  *
194  * DESCRIPTION: Print error message with the full pathname for the NS node.
195  *
196  ******************************************************************************/
197 
198 void
199 acpi_ut_namespace_error(const char *module_name,
200 			u32 line_number,
201 			const char *internal_name, acpi_status lookup_status)
202 {
203 	acpi_status status;
204 	u32 bad_name;
205 	char *name = NULL;
206 
207 	ACPI_MSG_REDIRECT_BEGIN;
208 	acpi_os_printf(ACPI_MSG_ERROR);
209 
210 	if (lookup_status == AE_BAD_CHARACTER) {
211 
212 		/* There is a non-ascii character in the name */
213 
214 		ACPI_MOVE_32_TO_32(&bad_name,
215 				   ACPI_CAST_PTR(u32, internal_name));
216 		acpi_os_printf("[0x%.8X] (NON-ASCII)", bad_name);
217 	} else {
218 		/* Convert path to external format */
219 
220 		status =
221 		    acpi_ns_externalize_name(ACPI_UINT32_MAX, internal_name,
222 					     NULL, &name);
223 
224 		/* Print target name */
225 
226 		if (ACPI_SUCCESS(status)) {
227 			acpi_os_printf("[%s]", name);
228 		} else {
229 			acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
230 		}
231 
232 		if (name) {
233 			ACPI_FREE(name);
234 		}
235 	}
236 
237 	acpi_os_printf(" Namespace lookup failure, %s",
238 		       acpi_format_exception(lookup_status));
239 
240 	ACPI_MSG_SUFFIX;
241 	ACPI_MSG_REDIRECT_END;
242 }
243 
244 /*******************************************************************************
245  *
246  * FUNCTION:    acpi_ut_method_error
247  *
248  * PARAMETERS:  module_name         - Caller's module name (for error output)
249  *              line_number         - Caller's line number (for error output)
250  *              message             - Error message to use on failure
251  *              prefix_node         - Prefix relative to the path
252  *              path                - Path to the node (optional)
253  *              method_status       - Execution status
254  *
255  * RETURN:      None
256  *
257  * DESCRIPTION: Print error message with the full pathname for the method.
258  *
259  ******************************************************************************/
260 
261 void
262 acpi_ut_method_error(const char *module_name,
263 		     u32 line_number,
264 		     const char *message,
265 		     struct acpi_namespace_node *prefix_node,
266 		     const char *path, acpi_status method_status)
267 {
268 	acpi_status status;
269 	struct acpi_namespace_node *node = prefix_node;
270 
271 	ACPI_MSG_REDIRECT_BEGIN;
272 	acpi_os_printf(ACPI_MSG_ERROR);
273 
274 	if (path) {
275 		status = acpi_ns_get_node(prefix_node, path,
276 					  ACPI_NS_NO_UPSEARCH, &node);
277 		if (ACPI_FAILURE(status)) {
278 			acpi_os_printf("[Could not get node by pathname]");
279 		}
280 	}
281 
282 	acpi_ns_print_node_pathname(node, message);
283 	acpi_os_printf(", %s", acpi_format_exception(method_status));
284 
285 	ACPI_MSG_SUFFIX;
286 	ACPI_MSG_REDIRECT_END;
287 }
288 
289 #endif				/* ACPI_NO_ERROR_MESSAGES */
290