drivers/acpi/acpica/utinit.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utinit - Common ACPI subsystem initialization
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2012, 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 #if (!ACPI_REDUCED_HARDWARE)
  57
  58 static void acpi_ut_free_gpe_lists(void);
  59
  60 #else
  61
  62 #define acpi_ut_free_gpe_lists()
  63 #endif                          /* !ACPI_REDUCED_HARDWARE */
  64
  65 #if (!ACPI_REDUCED_HARDWARE)
  66 /******************************************************************************
  67  *
  68  * FUNCTION:    acpi_ut_free_gpe_lists
  69  *
  70  * PARAMETERS:  none
  71  *
  72  * RETURN:      none
  73  *
  74  * DESCRIPTION: Free global GPE lists
  75  *
  76  ******************************************************************************/
  77
  78 static void acpi_ut_free_gpe_lists(void)
  79 {
  80         struct acpi_gpe_block_info *gpe_block;
  81         struct acpi_gpe_block_info *next_gpe_block;
  82         struct acpi_gpe_xrupt_info *gpe_xrupt_info;
  83         struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
  84
  85         /* Free global GPE blocks and related info structures */
  86
  87         gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
  88         while (gpe_xrupt_info) {
  89                 gpe_block = gpe_xrupt_info->gpe_block_list_head;
  90                 while (gpe_block) {
  91                         next_gpe_block = gpe_block->next;
  92                         ACPI_FREE(gpe_block->event_info);
  93                         ACPI_FREE(gpe_block->register_info);
  94                         ACPI_FREE(gpe_block);
  95
  96                         gpe_block = next_gpe_block;
  97                 }
  98                 next_gpe_xrupt_info = gpe_xrupt_info->next;
  99                 ACPI_FREE(gpe_xrupt_info);
 100                 gpe_xrupt_info = next_gpe_xrupt_info;
 101         }
 102 }
 103 #endif                          /* !ACPI_REDUCED_HARDWARE */
 104
 105 /******************************************************************************
 106  *
 107  * FUNCTION:    acpi_ut_terminate
 108  *
 109  * PARAMETERS:  none
 110  *
 111  * RETURN:      none
 112  *
 113  * DESCRIPTION: Free global memory
 114  *
 115  ******************************************************************************/
 116
 117 static void acpi_ut_terminate(void)
 118 {
 119         ACPI_FUNCTION_TRACE(ut_terminate);
 120
 121         acpi_ut_free_gpe_lists();
 122         acpi_ut_delete_address_lists();
 123         return_VOID;
 124 }
 125
 126 /*******************************************************************************
 127  *
 128  * FUNCTION:    acpi_ut_subsystem_shutdown
 129  *
 130  * PARAMETERS:  None
 131  *
 132  * RETURN:      None
 133  *
 134  * DESCRIPTION: Shutdown the various components. Do not delete the mutex
 135  *              objects here, because the AML debugger may be still running.
 136  *
 137  ******************************************************************************/
 138
 139 void acpi_ut_subsystem_shutdown(void)
 140 {
 141         ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
 142
 143 #ifndef ACPI_ASL_COMPILER
 144
 145         /* Close the acpi_event Handling */
 146
 147         acpi_ev_terminate();
 148
 149         /* Delete any dynamic _OSI interfaces */
 150
 151         acpi_ut_interface_terminate();
 152 #endif
 153
 154         /* Close the Namespace */
 155
 156         acpi_ns_terminate();
 157
 158         /* Delete the ACPI tables */
 159
 160         acpi_tb_terminate();
 161
 162         /* Close the globals */
 163
 164         acpi_ut_terminate();
 165
 166         /* Purge the local caches */
 167
 168         (void)acpi_ut_delete_caches();
 169         return_VOID;
 170 }