1 /****************************************************************************** 2 * 3 * Module Name: utinit - Common ACPI subsystem initialization 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2008, 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 #include "acevents.h" 48 #include "actables.h" 49 50 #define _COMPONENT ACPI_UTILITIES 51 ACPI_MODULE_NAME("utinit") 52 53 /* Local prototypes */ 54 static void acpi_ut_terminate(void); 55 56 /****************************************************************************** 57 * 58 * FUNCTION: acpi_ut_terminate 59 * 60 * PARAMETERS: none 61 * 62 * RETURN: none 63 * 64 * DESCRIPTION: Free global memory 65 * 66 ******************************************************************************/ 67 68 static void acpi_ut_terminate(void) 69 { 70 struct acpi_gpe_block_info *gpe_block; 71 struct acpi_gpe_block_info *next_gpe_block; 72 struct acpi_gpe_xrupt_info *gpe_xrupt_info; 73 struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; 74 75 ACPI_FUNCTION_TRACE(ut_terminate); 76 77 /* Free global GPE blocks and related info structures */ 78 79 gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; 80 while (gpe_xrupt_info) { 81 gpe_block = gpe_xrupt_info->gpe_block_list_head; 82 while (gpe_block) { 83 next_gpe_block = gpe_block->next; 84 ACPI_FREE(gpe_block->event_info); 85 ACPI_FREE(gpe_block->register_info); 86 ACPI_FREE(gpe_block); 87 88 gpe_block = next_gpe_block; 89 } 90 next_gpe_xrupt_info = gpe_xrupt_info->next; 91 ACPI_FREE(gpe_xrupt_info); 92 gpe_xrupt_info = next_gpe_xrupt_info; 93 } 94 95 return_VOID; 96 } 97 98 /******************************************************************************* 99 * 100 * FUNCTION: acpi_ut_subsystem_shutdown 101 * 102 * PARAMETERS: none 103 * 104 * RETURN: none 105 * 106 * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex 107 * objects here -- because the AML debugger may be still running. 108 * 109 ******************************************************************************/ 110 111 void acpi_ut_subsystem_shutdown(void) 112 { 113 114 ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); 115 116 /* Just exit if subsystem is already shutdown */ 117 118 if (acpi_gbl_shutdown) { 119 ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); 120 return_VOID; 121 } 122 123 /* Subsystem appears active, go ahead and shut it down */ 124 125 acpi_gbl_shutdown = TRUE; 126 acpi_gbl_startup_flags = 0; 127 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); 128 129 #ifndef ACPI_ASL_COMPILER 130 131 /* Close the acpi_event Handling */ 132 133 acpi_ev_terminate(); 134 #endif 135 136 /* Close the Namespace */ 137 138 acpi_ns_terminate(); 139 140 /* Delete the ACPI tables */ 141 142 acpi_tb_terminate(); 143 144 /* Close the globals */ 145 146 acpi_ut_terminate(); 147 148 /* Purge the local caches */ 149 150 (void)acpi_ut_delete_caches(); 151 return_VOID; 152 } 153