ACPICA: Enhance configuration for output of AML Debug Object
authorLin Ming <ming.m.lin@intel.com>
Wed, 3 Mar 2010 08:28:28 +0000 (16:28 +0800)
committerLen Brown <len.brown@intel.com>
Tue, 20 Apr 2010 14:42:49 +0000 (10:42 -0400)
This change will enable debug object output via a global variable,
acpi_gbl_enable_aml_debug_object. This will help with remote machine
debugging. Also, moved all debug object support code to a new
file, exdebug.c. Entire debug object module can now be
configured out of the ACPICA build if desired.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/acpi/acpica/Makefile
drivers/acpi/acpica/acglobal.h
drivers/acpi/acpica/acinterp.h
drivers/acpi/acpica/exdebug.c [new file with mode: 0644]
drivers/acpi/acpica/exstore.c
include/acpi/acoutput.h
include/acpi/acpixf.h

index 7423052..c110209 100644 (file)
@@ -19,7 +19,7 @@ acpi-y += evevent.o  evregion.o  evsci.o    evxfevnt.o \
 acpi-y += exconfig.o  exfield.o  exnames.o   exoparg6.o  exresolv.o  exstorob.o\
         exconvrt.o  exfldio.o  exoparg1.o  exprep.o    exresop.o   exsystem.o\
         excreate.o  exmisc.o   exoparg2.o  exregion.o  exstore.o   exutils.o \
-        exdump.o    exmutex.o  exoparg3.o  exresnte.o  exstoren.o
+        exdump.o    exmutex.o  exoparg3.o  exresnte.o  exstoren.o  exdebug.o
 
 acpi-y += hwacpi.o  hwgpe.o  hwregs.o  hwsleep.o hwxface.o hwvalid.o
 
index f8dd8f2..2b2e61e 100644 (file)
@@ -112,6 +112,11 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE);
  */
 u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE);
 
+/*
+ * Optionally enable output from the AML Debug Object.
+ */
+u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE);
+
 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
 
 struct acpi_table_fadt acpi_gbl_FADT;
index 6df3f84..9a9b893 100644 (file)
@@ -120,6 +120,13 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type,
                               union acpi_operand_object **result_desc,
                               struct acpi_walk_state *walk_state);
 
+/*
+ * exdebug - AML debug object
+ */
+void
+acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
+                       u32 level, u32 index);
+
 /*
  * exfield - ACPI AML (p-code) execution - field manipulation
  */
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
new file mode 100644 (file)
index 0000000..be8c98b
--- /dev/null
@@ -0,0 +1,261 @@
+/******************************************************************************
+ *
+ * Module Name: exdebug - Support for stores to the AML Debug Object
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2010, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acinterp.h"
+
+#define _COMPONENT          ACPI_EXECUTER
+ACPI_MODULE_NAME("exdebug")
+
+#ifndef ACPI_NO_ERROR_MESSAGES
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_do_debug_object
+ *
+ * PARAMETERS:  source_desc         - Object to be output to "Debug Object"
+ *              Level               - Indentation level (used for packages)
+ *              Index               - Current package element, zero if not pkg
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Handles stores to the AML Debug Object. For example:
+ *              Store(INT1, Debug)
+ *
+ * This function is not compiled if ACPI_NO_ERROR_MESSAGES is set.
+ *
+ * This function is only enabled if acpi_gbl_enable_aml_debug_object is set, or
+ * if ACPI_LV_DEBUG_OBJECT is set in the acpi_dbg_level. Thus, in the normal
+ * operational case, stores to the debug object are ignored but can be easily
+ * enabled if necessary.
+ *
+ ******************************************************************************/
+void
+acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
+                       u32 level, u32 index)
+{
+       u32 i;
+
+       ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
+
+       /* Output must be enabled via the debug_object global or the dbg_level */
+
+       if (!acpi_gbl_enable_aml_debug_object &&
+           !(acpi_dbg_level & ACPI_LV_DEBUG_OBJECT)) {
+               return_VOID;
+       }
+
+       /*
+        * Print line header as long as we are not in the middle of an
+        * object display
+        */
+       if (!((level > 0) && index == 0)) {
+               acpi_os_printf("[ACPI Debug] %*s", level, " ");
+       }
+
+       /* Display the index for package output only */
+
+       if (index > 0) {
+               acpi_os_printf("(%.2u) ", index - 1);
+       }
+
+       if (!source_desc) {
+               acpi_os_printf("[Null Object]\n");
+               return_VOID;
+       }
+
+       if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
+               acpi_os_printf("%s ",
+                              acpi_ut_get_object_type_name(source_desc));
+
+               if (!acpi_ut_valid_internal_object(source_desc)) {
+                       acpi_os_printf("%p, Invalid Internal Object!\n",
+                                      source_desc);
+                       return_VOID;
+               }
+       } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
+                  ACPI_DESC_TYPE_NAMED) {
+               acpi_os_printf("%s: %p\n",
+                              acpi_ut_get_type_name(((struct
+                                                      acpi_namespace_node *)
+                                                     source_desc)->type),
+                              source_desc);
+               return_VOID;
+       } else {
+               return_VOID;
+       }
+
+       /* source_desc is of type ACPI_DESC_TYPE_OPERAND */
+
+       switch (source_desc->common.type) {
+       case ACPI_TYPE_INTEGER:
+
+               /* Output correct integer width */
+
+               if (acpi_gbl_integer_byte_width == 4) {
+                       acpi_os_printf("0x%8.8X\n",
+                                      (u32)source_desc->integer.value);
+               } else {
+                       acpi_os_printf("0x%8.8X%8.8X\n",
+                                      ACPI_FORMAT_UINT64(source_desc->integer.
+                                                         value));
+               }
+               break;
+
+       case ACPI_TYPE_BUFFER:
+
+               acpi_os_printf("[0x%.2X]\n", (u32)source_desc->buffer.length);
+               acpi_ut_dump_buffer2(source_desc->buffer.pointer,
+                                    (source_desc->buffer.length < 256) ?
+                                    source_desc->buffer.length : 256,
+                                    DB_BYTE_DISPLAY);
+               break;
+
+       case ACPI_TYPE_STRING:
+
+               acpi_os_printf("[0x%.2X] \"%s\"\n",
+                              source_desc->string.length,
+                              source_desc->string.pointer);
+               break;
+
+       case ACPI_TYPE_PACKAGE:
+
+               acpi_os_printf("[Contains 0x%.2X Elements]\n",
+                              source_desc->package.count);
+
+               /* Output the entire contents of the package */
+
+               for (i = 0; i < source_desc->package.count; i++) {
+                       acpi_ex_do_debug_object(source_desc->package.
+                                               elements[i], level + 4, i + 1);
+               }
+               break;
+
+       case ACPI_TYPE_LOCAL_REFERENCE:
+
+               acpi_os_printf("[%s] ",
+                              acpi_ut_get_reference_name(source_desc));
+
+               /* Decode the reference */
+
+               switch (source_desc->reference.class) {
+               case ACPI_REFCLASS_INDEX:
+
+                       acpi_os_printf("0x%X\n", source_desc->reference.value);
+                       break;
+
+               case ACPI_REFCLASS_TABLE:
+
+                       /* Case for ddb_handle */
+
+                       acpi_os_printf("Table Index 0x%X\n",
+                                      source_desc->reference.value);
+                       return;
+
+               default:
+                       break;
+               }
+
+               acpi_os_printf(" ");
+
+               /* Check for valid node first, then valid object */
+
+               if (source_desc->reference.node) {
+                       if (ACPI_GET_DESCRIPTOR_TYPE
+                           (source_desc->reference.node) !=
+                           ACPI_DESC_TYPE_NAMED) {
+                               acpi_os_printf
+                                   (" %p - Not a valid namespace node\n",
+                                    source_desc->reference.node);
+                       } else {
+                               acpi_os_printf("Node %p [%4.4s] ",
+                                              source_desc->reference.node,
+                                              (source_desc->reference.node)->
+                                              name.ascii);
+
+                               switch ((source_desc->reference.node)->type) {
+
+                                       /* These types have no attached object */
+
+                               case ACPI_TYPE_DEVICE:
+                                       acpi_os_printf("Device\n");
+                                       break;
+
+                               case ACPI_TYPE_THERMAL:
+                                       acpi_os_printf("Thermal Zone\n");
+                                       break;
+
+                               default:
+                                       acpi_ex_do_debug_object((source_desc->
+                                                                reference.
+                                                                node)->object,
+                                                               level + 4, 0);
+                                       break;
+                               }
+                       }
+               } else if (source_desc->reference.object) {
+                       if (ACPI_GET_DESCRIPTOR_TYPE
+                           (source_desc->reference.object) ==
+                           ACPI_DESC_TYPE_NAMED) {
+                               acpi_ex_do_debug_object(((struct
+                                                         acpi_namespace_node *)
+                                                        source_desc->reference.
+                                                        object)->object,
+                                                       level + 4, 0);
+                       } else {
+                               acpi_ex_do_debug_object(source_desc->reference.
+                                                       object, level + 4, 0);
+                       }
+               }
+               break;
+
+       default:
+
+               acpi_os_printf("%p\n", source_desc);
+               break;
+       }
+
+       ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n"));
+       return_VOID;
+}
+#endif
index 702b9ec..f65d7e4 100644 (file)
@@ -1,4 +1,3 @@
-
 /******************************************************************************
  *
  * Module Name: exstore - AML Interpreter object store support
 ACPI_MODULE_NAME("exstore")
 
 /* Local prototypes */
-static void
-acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
-                       u32 level, u32 index);
-
 static acpi_status
 acpi_ex_store_object_to_index(union acpi_operand_object *val_desc,
                              union acpi_operand_object *dest_desc,
                              struct acpi_walk_state *walk_state);
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_do_debug_object
- *
- * PARAMETERS:  source_desc         - Value to be stored
- *              Level               - Indentation level (used for packages)
- *              Index               - Current package element, zero if not pkg
- *
- * RETURN:      None
- *
- * DESCRIPTION: Handles stores to the Debug Object.
- *
- ******************************************************************************/
-
-static void
-acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
-                       u32 level, u32 index)
-{
-       u32 i;
-
-       ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
-
-       /* Print line header as long as we are not in the middle of an object display */
-
-       if (!((level > 0) && index == 0)) {
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s",
-                                     level, " "));
-       }
-
-       /* Display index for package output only */
-
-       if (index > 0) {
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                     "(%.2u) ", index - 1));
-       }
-
-       if (!source_desc) {
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n"));
-               return_VOID;
-       }
-
-       if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ",
-                                     acpi_ut_get_object_type_name
-                                     (source_desc)));
-
-               if (!acpi_ut_valid_internal_object(source_desc)) {
-                       ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                             "%p, Invalid Internal Object!\n",
-                                             source_desc));
-                       return_VOID;
-               }
-       } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
-                  ACPI_DESC_TYPE_NAMED) {
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n",
-                                     acpi_ut_get_type_name(((struct
-                                                             acpi_namespace_node
-                                                             *)source_desc)->
-                                                           type),
-                                     source_desc));
-               return_VOID;
-       } else {
-               return_VOID;
-       }
-
-       /* source_desc is of type ACPI_DESC_TYPE_OPERAND */
-
-       switch (source_desc->common.type) {
-       case ACPI_TYPE_INTEGER:
-
-               /* Output correct integer width */
-
-               if (acpi_gbl_integer_byte_width == 4) {
-                       ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n",
-                                             (u32) source_desc->integer.
-                                             value));
-               } else {
-                       ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                             "0x%8.8X%8.8X\n",
-                                             ACPI_FORMAT_UINT64(source_desc->
-                                                                integer.
-                                                                value)));
-               }
-               break;
-
-       case ACPI_TYPE_BUFFER:
-
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n",
-                                     (u32) source_desc->buffer.length));
-               ACPI_DUMP_BUFFER(source_desc->buffer.pointer,
-                                (source_desc->buffer.length <
-                                 256) ? source_desc->buffer.length : 256);
-               break;
-
-       case ACPI_TYPE_STRING:
-
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n",
-                                     source_desc->string.length,
-                                     source_desc->string.pointer));
-               break;
-
-       case ACPI_TYPE_PACKAGE:
-
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                     "[Contains 0x%.2X Elements]\n",
-                                     source_desc->package.count));
-
-               /* Output the entire contents of the package */
-
-               for (i = 0; i < source_desc->package.count; i++) {
-                       acpi_ex_do_debug_object(source_desc->package.
-                                               elements[i], level + 4, i + 1);
-               }
-               break;
-
-       case ACPI_TYPE_LOCAL_REFERENCE:
-
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ",
-                                     acpi_ut_get_reference_name(source_desc)));
-
-               /* Decode the reference */
-
-               switch (source_desc->reference.class) {
-               case ACPI_REFCLASS_INDEX:
-
-                       ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n",
-                                             source_desc->reference.value));
-                       break;
-
-               case ACPI_REFCLASS_TABLE:
-
-                       /* Case for ddb_handle */
-
-                       ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                             "Table Index 0x%X\n",
-                                             source_desc->reference.value));
-                       return;
-
-               default:
-                       break;
-               }
-
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "  "));
-
-               /* Check for valid node first, then valid object */
-
-               if (source_desc->reference.node) {
-                       if (ACPI_GET_DESCRIPTOR_TYPE
-                           (source_desc->reference.node) !=
-                           ACPI_DESC_TYPE_NAMED) {
-                               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                                     " %p - Not a valid namespace node\n",
-                                                     source_desc->reference.
-                                                     node));
-                       } else {
-                               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-                                                     "Node %p [%4.4s] ",
-                                                     source_desc->reference.
-                                                     node,
-                                                     (source_desc->reference.
-                                                      node)->name.ascii));
-
-                               switch ((source_desc->reference.node)->type) {
-
-                                       /* These types have no attached object */
-
-                               case ACPI_TYPE_DEVICE:
-                                       acpi_os_printf("Device\n");
-                                       break;
-
-                               case ACPI_TYPE_THERMAL:
-                                       acpi_os_printf("Thermal Zone\n");
-                                       break;
-
-                               default:
-                                       acpi_ex_do_debug_object((source_desc->
-                                                                reference.
-                                                                node)->object,
-                                                               level + 4, 0);
-                                       break;
-                               }
-                       }
-               } else if (source_desc->reference.object) {
-                       if (ACPI_GET_DESCRIPTOR_TYPE
-                           (source_desc->reference.object) ==
-                           ACPI_DESC_TYPE_NAMED) {
-                               acpi_ex_do_debug_object(((struct
-                                                         acpi_namespace_node *)
-                                                        source_desc->reference.
-                                                        object)->object,
-                                                       level + 4, 0);
-                       } else {
-                               acpi_ex_do_debug_object(source_desc->reference.
-                                                       object, level + 4, 0);
-                       }
-               }
-               break;
-
-       default:
-
-               ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n",
-                                     source_desc));
-               break;
-       }
-
-       ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n"));
-       return_VOID;
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ex_store
@@ -402,7 +188,7 @@ acpi_ex_store(union acpi_operand_object *source_desc,
                                  source_desc,
                                  acpi_ut_get_object_type_name(source_desc)));
 
-               acpi_ex_do_debug_object(source_desc, 0, 0);
+               ACPI_DEBUG_OBJECT(source_desc, 0, 0);
                break;
 
        default:
index d772668..5e95226 100644 (file)
 #define ACPI_WARNING(plist)             acpi_warning plist
 #define ACPI_EXCEPTION(plist)           acpi_exception plist
 #define ACPI_ERROR(plist)               acpi_error plist
+#define ACPI_DEBUG_OBJECT(obj,l,i)      acpi_ex_do_debug_object(obj,l,i)
 
 #else
 
 #define ACPI_WARNING(plist)
 #define ACPI_EXCEPTION(plist)
 #define ACPI_ERROR(plist)
+#define ACPI_DEBUG_OBJECT(obj,l,i)
 
 #endif                         /* ACPI_NO_ERROR_MESSAGES */
 
index 4447a04..4969862 100644 (file)
@@ -67,6 +67,7 @@ extern u8 acpi_gbl_leave_wake_gpes_disabled;
 extern u8 acpi_gbl_use_default_register_widths;
 extern acpi_name acpi_gbl_trace_method_name;
 extern u32 acpi_gbl_trace_flags;
+extern u8 acpi_gbl_enable_aml_debug_object;
 
 extern u32 acpi_current_gpe_count;
 extern struct acpi_table_fadt acpi_gbl_FADT;