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6595 | serge | 1 | /****************************************************************************** |
2 | * |
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3 | * Module Name: utinit - Common ACPI subsystem initialization |
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4 | * |
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5 | *****************************************************************************/ |
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6 | |||
7 | /* |
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8 | * Copyright (C) 2000 - 2015, Intel Corp. |
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9 | * All rights reserved. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * 1. Redistributions of source code must retain the above copyright |
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15 | * notice, this list of conditions, and the following disclaimer, |
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16 | * without modification. |
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17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
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18 | * substantially similar to the "NO WARRANTY" disclaimer below |
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19 | * ("Disclaimer") and any redistribution must be conditioned upon |
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20 | * including a substantially similar Disclaimer requirement for further |
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21 | * binary redistribution. |
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22 | * 3. Neither the names of the above-listed copyright holders nor the names |
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23 | * of any contributors may be used to endorse or promote products derived |
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24 | * from this software without specific prior written permission. |
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25 | * |
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26 | * Alternatively, this software may be distributed under the terms of the |
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27 | * GNU General Public License ("GPL") version 2 as published by the Free |
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28 | * Software Foundation. |
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29 | * |
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30 | * NO WARRANTY |
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31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
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34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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41 | * POSSIBILITY OF SUCH DAMAGES. |
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42 | */ |
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43 | |||
44 | #include |
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45 | #include "accommon.h" |
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46 | #include "acnamesp.h" |
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47 | #include "acevents.h" |
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48 | #include "actables.h" |
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49 | |||
50 | #define _COMPONENT ACPI_UTILITIES |
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51 | ACPI_MODULE_NAME("utinit") |
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52 | |||
53 | /* Local prototypes */ |
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54 | static void acpi_ut_terminate(void); |
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55 | |||
56 | #if (!ACPI_REDUCED_HARDWARE) |
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57 | |||
58 | static void acpi_ut_free_gpe_lists(void); |
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59 | |||
60 | #else |
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61 | |||
62 | #define acpi_ut_free_gpe_lists() |
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63 | #endif /* !ACPI_REDUCED_HARDWARE */ |
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64 | |||
65 | #if (!ACPI_REDUCED_HARDWARE) |
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66 | /****************************************************************************** |
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67 | * |
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68 | * FUNCTION: acpi_ut_free_gpe_lists |
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69 | * |
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70 | * PARAMETERS: none |
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71 | * |
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72 | * RETURN: none |
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73 | * |
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74 | * DESCRIPTION: Free global GPE lists |
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75 | * |
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76 | ******************************************************************************/ |
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77 | |||
78 | static void acpi_ut_free_gpe_lists(void) |
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79 | { |
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80 | struct acpi_gpe_block_info *gpe_block; |
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81 | struct acpi_gpe_block_info *next_gpe_block; |
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82 | struct acpi_gpe_xrupt_info *gpe_xrupt_info; |
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83 | struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; |
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84 | |||
85 | /* Free global GPE blocks and related info structures */ |
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86 | |||
87 | gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; |
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88 | while (gpe_xrupt_info) { |
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89 | gpe_block = gpe_xrupt_info->gpe_block_list_head; |
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90 | while (gpe_block) { |
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91 | next_gpe_block = gpe_block->next; |
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92 | ACPI_FREE(gpe_block->event_info); |
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93 | ACPI_FREE(gpe_block->register_info); |
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94 | ACPI_FREE(gpe_block); |
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95 | |||
96 | gpe_block = next_gpe_block; |
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97 | } |
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98 | next_gpe_xrupt_info = gpe_xrupt_info->next; |
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99 | ACPI_FREE(gpe_xrupt_info); |
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100 | gpe_xrupt_info = next_gpe_xrupt_info; |
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101 | } |
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102 | } |
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103 | #endif /* !ACPI_REDUCED_HARDWARE */ |
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104 | |||
105 | /******************************************************************************* |
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106 | * |
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107 | * FUNCTION: acpi_ut_init_globals |
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108 | * |
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109 | * PARAMETERS: None |
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110 | * |
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111 | * RETURN: Status |
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112 | * |
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113 | * DESCRIPTION: Initialize ACPICA globals. All globals that require specific |
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114 | * initialization should be initialized here. This allows for |
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115 | * a warm restart. |
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116 | * |
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117 | ******************************************************************************/ |
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118 | |||
119 | acpi_status acpi_ut_init_globals(void) |
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120 | { |
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121 | acpi_status status; |
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122 | u32 i; |
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123 | |||
124 | ACPI_FUNCTION_TRACE(ut_init_globals); |
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125 | |||
126 | /* Create all memory caches */ |
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127 | |||
128 | status = acpi_ut_create_caches(); |
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129 | if (ACPI_FAILURE(status)) { |
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130 | return_ACPI_STATUS(status); |
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131 | } |
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132 | |||
133 | /* Address Range lists */ |
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134 | |||
135 | for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) { |
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136 | acpi_gbl_address_range_list[i] = NULL; |
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137 | } |
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138 | |||
139 | /* Mutex locked flags */ |
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140 | |||
141 | for (i = 0; i < ACPI_NUM_MUTEX; i++) { |
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142 | acpi_gbl_mutex_info[i].mutex = NULL; |
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143 | acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; |
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144 | acpi_gbl_mutex_info[i].use_count = 0; |
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145 | } |
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146 | |||
147 | for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { |
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148 | acpi_gbl_owner_id_mask[i] = 0; |
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149 | } |
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150 | |||
151 | /* Last owner_ID is never valid */ |
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152 | |||
153 | acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; |
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154 | |||
155 | /* Event counters */ |
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156 | |||
157 | acpi_method_count = 0; |
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158 | acpi_sci_count = 0; |
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159 | acpi_gpe_count = 0; |
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160 | |||
161 | for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { |
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162 | acpi_fixed_event_count[i] = 0; |
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163 | } |
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164 | |||
165 | #if (!ACPI_REDUCED_HARDWARE) |
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166 | |||
167 | /* GPE/SCI support */ |
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168 | |||
169 | acpi_gbl_all_gpes_initialized = FALSE; |
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170 | acpi_gbl_gpe_xrupt_list_head = NULL; |
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171 | acpi_gbl_gpe_fadt_blocks[0] = NULL; |
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172 | acpi_gbl_gpe_fadt_blocks[1] = NULL; |
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173 | acpi_current_gpe_count = 0; |
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174 | |||
175 | acpi_gbl_global_event_handler = NULL; |
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176 | acpi_gbl_sci_handler_list = NULL; |
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177 | |||
178 | #endif /* !ACPI_REDUCED_HARDWARE */ |
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179 | |||
180 | /* Global handlers */ |
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181 | |||
182 | acpi_gbl_global_notify[0].handler = NULL; |
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183 | acpi_gbl_global_notify[1].handler = NULL; |
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184 | acpi_gbl_exception_handler = NULL; |
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185 | acpi_gbl_init_handler = NULL; |
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186 | acpi_gbl_table_handler = NULL; |
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187 | acpi_gbl_interface_handler = NULL; |
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188 | |||
189 | /* Global Lock support */ |
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190 | |||
191 | acpi_gbl_global_lock_semaphore = NULL; |
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192 | acpi_gbl_global_lock_mutex = NULL; |
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193 | acpi_gbl_global_lock_acquired = FALSE; |
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194 | acpi_gbl_global_lock_handle = 0; |
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195 | acpi_gbl_global_lock_present = FALSE; |
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196 | |||
197 | /* Miscellaneous variables */ |
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198 | |||
199 | acpi_gbl_DSDT = NULL; |
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200 | acpi_gbl_cm_single_step = FALSE; |
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201 | acpi_gbl_shutdown = FALSE; |
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202 | acpi_gbl_ns_lookup_count = 0; |
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203 | acpi_gbl_ps_find_count = 0; |
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204 | acpi_gbl_acpi_hardware_present = TRUE; |
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205 | acpi_gbl_last_owner_id_index = 0; |
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206 | acpi_gbl_next_owner_id_offset = 0; |
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207 | acpi_gbl_debugger_configuration = DEBUGGER_THREADING; |
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208 | acpi_gbl_osi_mutex = NULL; |
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209 | acpi_gbl_reg_methods_executed = FALSE; |
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210 | acpi_gbl_max_loop_iterations = 0xFFFF; |
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211 | |||
212 | /* Hardware oriented */ |
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213 | |||
214 | acpi_gbl_events_initialized = FALSE; |
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215 | acpi_gbl_system_awake_and_running = TRUE; |
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216 | |||
217 | /* Namespace */ |
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218 | |||
219 | acpi_gbl_module_code_list = NULL; |
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220 | acpi_gbl_root_node = NULL; |
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221 | acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; |
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222 | acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; |
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223 | acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; |
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224 | acpi_gbl_root_node_struct.parent = NULL; |
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225 | acpi_gbl_root_node_struct.child = NULL; |
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226 | acpi_gbl_root_node_struct.peer = NULL; |
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227 | acpi_gbl_root_node_struct.object = NULL; |
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228 | |||
229 | #ifdef ACPI_DISASSEMBLER |
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230 | acpi_gbl_external_list = NULL; |
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231 | acpi_gbl_num_external_methods = 0; |
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232 | acpi_gbl_resolved_external_methods = 0; |
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233 | #endif |
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234 | |||
235 | #ifdef ACPI_DEBUG_OUTPUT |
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236 | acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); |
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237 | #endif |
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238 | |||
239 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
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240 | acpi_gbl_display_final_mem_stats = FALSE; |
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241 | acpi_gbl_disable_mem_tracking = FALSE; |
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242 | #endif |
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243 | |||
244 | return_ACPI_STATUS(AE_OK); |
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245 | } |
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246 | |||
247 | /****************************************************************************** |
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248 | * |
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249 | * FUNCTION: acpi_ut_terminate |
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250 | * |
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251 | * PARAMETERS: none |
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252 | * |
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253 | * RETURN: none |
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254 | * |
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255 | * DESCRIPTION: Free global memory |
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256 | * |
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257 | ******************************************************************************/ |
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258 | |||
259 | static void acpi_ut_terminate(void) |
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260 | { |
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261 | ACPI_FUNCTION_TRACE(ut_terminate); |
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262 | |||
263 | acpi_ut_free_gpe_lists(); |
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264 | acpi_ut_delete_address_lists(); |
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265 | return_VOID; |
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266 | } |
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267 | |||
268 | /******************************************************************************* |
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269 | * |
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270 | * FUNCTION: acpi_ut_subsystem_shutdown |
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271 | * |
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272 | * PARAMETERS: None |
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273 | * |
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274 | * RETURN: None |
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275 | * |
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276 | * DESCRIPTION: Shutdown the various components. Do not delete the mutex |
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277 | * objects here, because the AML debugger may be still running. |
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278 | * |
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279 | ******************************************************************************/ |
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280 | |||
281 | void acpi_ut_subsystem_shutdown(void) |
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282 | { |
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283 | ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); |
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284 | |||
285 | /* Just exit if subsystem is already shutdown */ |
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286 | |||
287 | if (acpi_gbl_shutdown) { |
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288 | ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); |
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289 | return_VOID; |
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290 | } |
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291 | |||
292 | /* Subsystem appears active, go ahead and shut it down */ |
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293 | |||
294 | acpi_gbl_shutdown = TRUE; |
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295 | acpi_gbl_startup_flags = 0; |
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296 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); |
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297 | |||
298 | #ifndef ACPI_ASL_COMPILER |
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299 | |||
300 | /* Close the acpi_event Handling */ |
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301 | |||
302 | acpi_ev_terminate(); |
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303 | |||
304 | /* Delete any dynamic _OSI interfaces */ |
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305 | |||
306 | acpi_ut_interface_terminate(); |
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307 | #endif |
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308 | |||
309 | /* Close the Namespace */ |
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310 | |||
311 | acpi_ns_terminate(); |
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312 | |||
313 | /* Delete the ACPI tables */ |
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314 | |||
315 | acpi_tb_terminate(); |
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316 | |||
317 | /* Close the globals */ |
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318 | |||
319 | acpi_ut_terminate(); |
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320 | |||
321 | /* Purge the local caches */ |
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322 | |||
323 | (void)acpi_ut_delete_caches(); |
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324 | return_VOID; |
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325 | }>>>> |