Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 3 | * Module Name: utalloc - local memory allocation routines |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2005, R. Byron Moore |
| 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <acpi/acpi.h> |
| 45 | |
| 46 | #define _COMPONENT ACPI_UTILITIES |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 47 | ACPI_MODULE_NAME("utalloc") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 49 | /* Local prototypes */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 50 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 51 | static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 52 | |
| 53 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 54 | acpi_ut_track_allocation(struct acpi_debug_mem_block *address, |
| 55 | acpi_size size, |
| 56 | u8 alloc_type, u32 component, char *module, u32 line); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 57 | |
| 58 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 59 | acpi_ut_remove_allocation(struct acpi_debug_mem_block *address, |
| 60 | u32 component, char *module, u32 line); |
| 61 | #endif /* ACPI_DBG_TRACK_ALLOCATIONS */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 62 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 63 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
| 64 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 65 | acpi_ut_create_list(char *list_name, |
| 66 | u16 object_size, struct acpi_memory_list **return_cache); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 69 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 71 | * FUNCTION: acpi_ut_create_caches |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 73 | * PARAMETERS: None |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 75 | * RETURN: Status |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 77 | * DESCRIPTION: Create all local caches |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | * |
| 79 | ******************************************************************************/ |
| 80 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 81 | acpi_status acpi_ut_create_caches(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 83 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 87 | /* Memory allocation lists */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 89 | status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); |
| 90 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 91 | return (status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } |
| 93 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 94 | status = |
| 95 | acpi_ut_create_list("Acpi-Namespace", |
| 96 | sizeof(struct acpi_namespace_node), |
| 97 | &acpi_gbl_ns_node_list); |
| 98 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 99 | return (status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | #endif |
| 102 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 103 | /* Object Caches, for frequently used objects */ |
| 104 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 105 | status = |
| 106 | acpi_os_create_cache("acpi_state", sizeof(union acpi_generic_state), |
| 107 | ACPI_MAX_STATE_CACHE_DEPTH, |
| 108 | &acpi_gbl_state_cache); |
| 109 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 110 | return (status); |
| 111 | } |
| 112 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 113 | status = |
| 114 | acpi_os_create_cache("acpi_parse", |
| 115 | sizeof(struct acpi_parse_obj_common), |
| 116 | ACPI_MAX_PARSE_CACHE_DEPTH, |
| 117 | &acpi_gbl_ps_node_cache); |
| 118 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 119 | return (status); |
| 120 | } |
| 121 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 122 | status = |
| 123 | acpi_os_create_cache("acpi_parse_ext", |
| 124 | sizeof(struct acpi_parse_obj_named), |
| 125 | ACPI_MAX_EXTPARSE_CACHE_DEPTH, |
| 126 | &acpi_gbl_ps_node_ext_cache); |
| 127 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 128 | return (status); |
| 129 | } |
| 130 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 131 | status = |
| 132 | acpi_os_create_cache("acpi_operand", |
| 133 | sizeof(union acpi_operand_object), |
| 134 | ACPI_MAX_OBJECT_CACHE_DEPTH, |
| 135 | &acpi_gbl_operand_cache); |
| 136 | if (ACPI_FAILURE(status)) { |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 137 | return (status); |
| 138 | } |
| 139 | |
| 140 | return (AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 143 | /******************************************************************************* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 145 | * FUNCTION: acpi_ut_delete_caches |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 147 | * PARAMETERS: None |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 149 | * RETURN: Status |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 151 | * DESCRIPTION: Purge and delete all local caches |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | * |
| 153 | ******************************************************************************/ |
| 154 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 155 | acpi_status acpi_ut_delete_caches(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 158 | (void)acpi_os_delete_cache(acpi_gbl_state_cache); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 159 | acpi_gbl_state_cache = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 161 | (void)acpi_os_delete_cache(acpi_gbl_operand_cache); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 162 | acpi_gbl_operand_cache = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 164 | (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 165 | acpi_gbl_ps_node_cache = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 167 | (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 168 | acpi_gbl_ps_node_ext_cache = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 170 | return (AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | /******************************************************************************* |
| 174 | * |
| 175 | * FUNCTION: acpi_ut_validate_buffer |
| 176 | * |
| 177 | * PARAMETERS: Buffer - Buffer descriptor to be validated |
| 178 | * |
| 179 | * RETURN: Status |
| 180 | * |
| 181 | * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer |
| 182 | * |
| 183 | ******************************************************************************/ |
| 184 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 185 | acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | { |
| 187 | |
| 188 | /* Obviously, the structure pointer must be valid */ |
| 189 | |
| 190 | if (!buffer) { |
| 191 | return (AE_BAD_PARAMETER); |
| 192 | } |
| 193 | |
| 194 | /* Special semantics for the length */ |
| 195 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 196 | if ((buffer->length == ACPI_NO_BUFFER) || |
| 197 | (buffer->length == ACPI_ALLOCATE_BUFFER) || |
| 198 | (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | return (AE_OK); |
| 200 | } |
| 201 | |
| 202 | /* Length is valid, the buffer pointer must be also */ |
| 203 | |
| 204 | if (!buffer->pointer) { |
| 205 | return (AE_BAD_PARAMETER); |
| 206 | } |
| 207 | |
| 208 | return (AE_OK); |
| 209 | } |
| 210 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | /******************************************************************************* |
| 212 | * |
| 213 | * FUNCTION: acpi_ut_initialize_buffer |
| 214 | * |
| 215 | * PARAMETERS: Buffer - Buffer to be validated |
| 216 | * required_length - Length needed |
| 217 | * |
| 218 | * RETURN: Status |
| 219 | * |
| 220 | * DESCRIPTION: Validate that the buffer is of the required length or |
| 221 | * allocate a new buffer. Returned buffer is always zeroed. |
| 222 | * |
| 223 | ******************************************************************************/ |
| 224 | |
| 225 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 226 | acpi_ut_initialize_buffer(struct acpi_buffer * buffer, |
| 227 | acpi_size required_length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 229 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
| 231 | switch (buffer->length) { |
| 232 | case ACPI_NO_BUFFER: |
| 233 | |
| 234 | /* Set the exception and returned the required length */ |
| 235 | |
| 236 | status = AE_BUFFER_OVERFLOW; |
| 237 | break; |
| 238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | case ACPI_ALLOCATE_BUFFER: |
| 240 | |
| 241 | /* Allocate a new buffer */ |
| 242 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 243 | buffer->pointer = acpi_os_allocate(required_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | if (!buffer->pointer) { |
| 245 | return (AE_NO_MEMORY); |
| 246 | } |
| 247 | |
| 248 | /* Clear the buffer */ |
| 249 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 250 | ACPI_MEMSET(buffer->pointer, 0, required_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | break; |
| 252 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | case ACPI_ALLOCATE_LOCAL_BUFFER: |
| 254 | |
| 255 | /* Allocate a new buffer with local interface to allow tracking */ |
| 256 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 257 | buffer->pointer = ACPI_MEM_CALLOCATE(required_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | if (!buffer->pointer) { |
| 259 | return (AE_NO_MEMORY); |
| 260 | } |
| 261 | break; |
| 262 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | default: |
| 264 | |
| 265 | /* Existing buffer: Validate the size of the buffer */ |
| 266 | |
| 267 | if (buffer->length < required_length) { |
| 268 | status = AE_BUFFER_OVERFLOW; |
| 269 | break; |
| 270 | } |
| 271 | |
| 272 | /* Clear the buffer */ |
| 273 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 274 | ACPI_MEMSET(buffer->pointer, 0, required_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | break; |
| 276 | } |
| 277 | |
| 278 | buffer->length = required_length; |
| 279 | return (status); |
| 280 | } |
| 281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | /******************************************************************************* |
| 283 | * |
| 284 | * FUNCTION: acpi_ut_allocate |
| 285 | * |
| 286 | * PARAMETERS: Size - Size of the allocation |
| 287 | * Component - Component type of caller |
| 288 | * Module - Source file name of caller |
| 289 | * Line - Line number of caller |
| 290 | * |
| 291 | * RETURN: Address of the allocated memory on success, NULL on failure. |
| 292 | * |
| 293 | * DESCRIPTION: The subsystem's equivalent of malloc. |
| 294 | * |
| 295 | ******************************************************************************/ |
| 296 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 297 | void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 299 | void *allocation; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 301 | ACPI_FUNCTION_TRACE_U32("ut_allocate", size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | |
| 303 | /* Check for an inadvertent size of zero bytes */ |
| 304 | |
| 305 | if (!size) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 306 | _ACPI_REPORT_ERROR(module, line, component, |
| 307 | ("ut_allocate: Attempt to allocate zero bytes\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | size = 1; |
| 309 | } |
| 310 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 311 | allocation = acpi_os_allocate(size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | if (!allocation) { |
| 313 | /* Report allocation error */ |
| 314 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 315 | _ACPI_REPORT_ERROR(module, line, component, |
| 316 | ("ut_allocate: Could not allocate size %X\n", |
| 317 | (u32) size)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 319 | return_PTR(NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | } |
| 321 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 322 | return_PTR(allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | } |
| 324 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | /******************************************************************************* |
| 326 | * |
| 327 | * FUNCTION: acpi_ut_callocate |
| 328 | * |
| 329 | * PARAMETERS: Size - Size of the allocation |
| 330 | * Component - Component type of caller |
| 331 | * Module - Source file name of caller |
| 332 | * Line - Line number of caller |
| 333 | * |
| 334 | * RETURN: Address of the allocated memory on success, NULL on failure. |
| 335 | * |
| 336 | * DESCRIPTION: Subsystem equivalent of calloc. |
| 337 | * |
| 338 | ******************************************************************************/ |
| 339 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 340 | void *acpi_ut_callocate(acpi_size size, u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 342 | void *allocation; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 344 | ACPI_FUNCTION_TRACE_U32("ut_callocate", size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
| 346 | /* Check for an inadvertent size of zero bytes */ |
| 347 | |
| 348 | if (!size) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 349 | _ACPI_REPORT_ERROR(module, line, component, |
| 350 | ("ut_callocate: Attempt to allocate zero bytes\n")); |
| 351 | return_PTR(NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | } |
| 353 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 354 | allocation = acpi_os_allocate(size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | if (!allocation) { |
| 356 | /* Report allocation error */ |
| 357 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 358 | _ACPI_REPORT_ERROR(module, line, component, |
| 359 | ("ut_callocate: Could not allocate size %X\n", |
| 360 | (u32) size)); |
| 361 | return_PTR(NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | } |
| 363 | |
| 364 | /* Clear the memory block */ |
| 365 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 366 | ACPI_MEMSET(allocation, 0, size); |
| 367 | return_PTR(allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | } |
| 369 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
| 371 | /* |
| 372 | * These procedures are used for tracking memory leaks in the subsystem, and |
| 373 | * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. |
| 374 | * |
| 375 | * Each memory allocation is tracked via a doubly linked list. Each |
| 376 | * element contains the caller's component, module name, function name, and |
| 377 | * line number. acpi_ut_allocate and acpi_ut_callocate call |
| 378 | * acpi_ut_track_allocation to add an element to the list; deletion |
| 379 | * occurs in the body of acpi_ut_free. |
| 380 | */ |
| 381 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 382 | /******************************************************************************* |
| 383 | * |
| 384 | * FUNCTION: acpi_ut_create_list |
| 385 | * |
| 386 | * PARAMETERS: cache_name - Ascii name for the cache |
| 387 | * object_size - Size of each cached object |
| 388 | * return_cache - Where the new cache object is returned |
| 389 | * |
| 390 | * RETURN: Status |
| 391 | * |
| 392 | * DESCRIPTION: Create a local memory list for tracking purposed |
| 393 | * |
| 394 | ******************************************************************************/ |
| 395 | |
| 396 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 397 | acpi_ut_create_list(char *list_name, |
| 398 | u16 object_size, struct acpi_memory_list **return_cache) |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 399 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 400 | struct acpi_memory_list *cache; |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 401 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 402 | cache = acpi_os_allocate(sizeof(struct acpi_memory_list)); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 403 | if (!cache) { |
| 404 | return (AE_NO_MEMORY); |
| 405 | } |
| 406 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 407 | ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list)); |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 408 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 409 | cache->list_name = list_name; |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 410 | cache->object_size = object_size; |
| 411 | |
| 412 | *return_cache = cache; |
| 413 | return (AE_OK); |
| 414 | } |
| 415 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | /******************************************************************************* |
| 417 | * |
| 418 | * FUNCTION: acpi_ut_allocate_and_track |
| 419 | * |
| 420 | * PARAMETERS: Size - Size of the allocation |
| 421 | * Component - Component type of caller |
| 422 | * Module - Source file name of caller |
| 423 | * Line - Line number of caller |
| 424 | * |
| 425 | * RETURN: Address of the allocated memory on success, NULL on failure. |
| 426 | * |
| 427 | * DESCRIPTION: The subsystem's equivalent of malloc. |
| 428 | * |
| 429 | ******************************************************************************/ |
| 430 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 431 | void *acpi_ut_allocate_and_track(acpi_size size, |
| 432 | u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 434 | struct acpi_debug_mem_block *allocation; |
| 435 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 437 | allocation = |
| 438 | acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header), |
| 439 | component, module, line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | if (!allocation) { |
| 441 | return (NULL); |
| 442 | } |
| 443 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 444 | status = acpi_ut_track_allocation(allocation, size, |
| 445 | ACPI_MEM_MALLOC, component, module, |
| 446 | line); |
| 447 | if (ACPI_FAILURE(status)) { |
| 448 | acpi_os_free(allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | return (NULL); |
| 450 | } |
| 451 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 452 | acpi_gbl_global_list->total_allocated++; |
| 453 | acpi_gbl_global_list->current_total_size += (u32) size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 455 | return ((void *)&allocation->user_space); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | } |
| 457 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | /******************************************************************************* |
| 459 | * |
| 460 | * FUNCTION: acpi_ut_callocate_and_track |
| 461 | * |
| 462 | * PARAMETERS: Size - Size of the allocation |
| 463 | * Component - Component type of caller |
| 464 | * Module - Source file name of caller |
| 465 | * Line - Line number of caller |
| 466 | * |
| 467 | * RETURN: Address of the allocated memory on success, NULL on failure. |
| 468 | * |
| 469 | * DESCRIPTION: Subsystem equivalent of calloc. |
| 470 | * |
| 471 | ******************************************************************************/ |
| 472 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 473 | void *acpi_ut_callocate_and_track(acpi_size size, |
| 474 | u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 476 | struct acpi_debug_mem_block *allocation; |
| 477 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 479 | allocation = |
| 480 | acpi_ut_callocate(size + sizeof(struct acpi_debug_mem_header), |
| 481 | component, module, line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | if (!allocation) { |
| 483 | /* Report allocation error */ |
| 484 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 485 | _ACPI_REPORT_ERROR(module, line, component, |
| 486 | ("ut_callocate: Could not allocate size %X\n", |
| 487 | (u32) size)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | return (NULL); |
| 489 | } |
| 490 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 491 | status = acpi_ut_track_allocation(allocation, size, |
| 492 | ACPI_MEM_CALLOC, component, module, |
| 493 | line); |
| 494 | if (ACPI_FAILURE(status)) { |
| 495 | acpi_os_free(allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | return (NULL); |
| 497 | } |
| 498 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 499 | acpi_gbl_global_list->total_allocated++; |
| 500 | acpi_gbl_global_list->current_total_size += (u32) size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 502 | return ((void *)&allocation->user_space); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | } |
| 504 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | /******************************************************************************* |
| 506 | * |
| 507 | * FUNCTION: acpi_ut_free_and_track |
| 508 | * |
| 509 | * PARAMETERS: Allocation - Address of the memory to deallocate |
| 510 | * Component - Component type of caller |
| 511 | * Module - Source file name of caller |
| 512 | * Line - Line number of caller |
| 513 | * |
| 514 | * RETURN: None |
| 515 | * |
| 516 | * DESCRIPTION: Frees the memory at Allocation |
| 517 | * |
| 518 | ******************************************************************************/ |
| 519 | |
| 520 | void |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 521 | acpi_ut_free_and_track(void *allocation, u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 523 | struct acpi_debug_mem_block *debug_block; |
| 524 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 526 | ACPI_FUNCTION_TRACE_PTR("ut_free", allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | |
| 528 | if (NULL == allocation) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 529 | _ACPI_REPORT_ERROR(module, line, component, |
| 530 | ("acpi_ut_free: Attempt to delete a NULL address\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | |
| 532 | return_VOID; |
| 533 | } |
| 534 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 535 | debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block, |
| 536 | (((char *)allocation) - |
| 537 | sizeof(struct acpi_debug_mem_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 539 | acpi_gbl_global_list->total_freed++; |
| 540 | acpi_gbl_global_list->current_total_size -= debug_block->size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 542 | status = acpi_ut_remove_allocation(debug_block, |
| 543 | component, module, line); |
| 544 | if (ACPI_FAILURE(status)) { |
| 545 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Could not free memory, %s\n", |
| 546 | acpi_format_exception(status))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | } |
| 548 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 549 | acpi_os_free(debug_block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 551 | ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | |
| 553 | return_VOID; |
| 554 | } |
| 555 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | /******************************************************************************* |
| 557 | * |
| 558 | * FUNCTION: acpi_ut_find_allocation |
| 559 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 560 | * PARAMETERS: Allocation - Address of allocated memory |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | * |
| 562 | * RETURN: A list element if found; NULL otherwise. |
| 563 | * |
| 564 | * DESCRIPTION: Searches for an element in the global allocation tracking list. |
| 565 | * |
| 566 | ******************************************************************************/ |
| 567 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 568 | static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 570 | struct acpi_debug_mem_block *element; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 572 | ACPI_FUNCTION_ENTRY(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 574 | element = acpi_gbl_global_list->list_head; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
| 576 | /* Search for the address. */ |
| 577 | |
| 578 | while (element) { |
| 579 | if (element == allocation) { |
| 580 | return (element); |
| 581 | } |
| 582 | |
| 583 | element = element->next; |
| 584 | } |
| 585 | |
| 586 | return (NULL); |
| 587 | } |
| 588 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | /******************************************************************************* |
| 590 | * |
| 591 | * FUNCTION: acpi_ut_track_allocation |
| 592 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 593 | * PARAMETERS: Allocation - Address of allocated memory |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | * Size - Size of the allocation |
| 595 | * alloc_type - MEM_MALLOC or MEM_CALLOC |
| 596 | * Component - Component type of caller |
| 597 | * Module - Source file name of caller |
| 598 | * Line - Line number of caller |
| 599 | * |
| 600 | * RETURN: None. |
| 601 | * |
| 602 | * DESCRIPTION: Inserts an element into the global allocation tracking list. |
| 603 | * |
| 604 | ******************************************************************************/ |
| 605 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 606 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 607 | acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation, |
| 608 | acpi_size size, |
| 609 | u8 alloc_type, u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 611 | struct acpi_memory_list *mem_list; |
| 612 | struct acpi_debug_mem_block *element; |
| 613 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 615 | ACPI_FUNCTION_TRACE_PTR("ut_track_allocation", allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 617 | mem_list = acpi_gbl_global_list; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 618 | status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); |
| 619 | if (ACPI_FAILURE(status)) { |
| 620 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | /* |
| 624 | * Search list for this address to make sure it is not already on the list. |
| 625 | * This will catch several kinds of problems. |
| 626 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 627 | element = acpi_ut_find_allocation(allocation); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | if (element) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 629 | ACPI_REPORT_ERROR(("ut_track_allocation: Allocation already present in list! (%p)\n", allocation)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 631 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Element %p Address %p\n", |
| 632 | element, allocation)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | |
| 634 | goto unlock_and_exit; |
| 635 | } |
| 636 | |
| 637 | /* Fill in the instance data. */ |
| 638 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 639 | allocation->size = (u32) size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | allocation->alloc_type = alloc_type; |
| 641 | allocation->component = component; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 642 | allocation->line = line; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 644 | ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME); |
| 645 | allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | |
| 647 | /* Insert at list head */ |
| 648 | |
| 649 | if (mem_list->list_head) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 650 | ((struct acpi_debug_mem_block *)(mem_list->list_head))-> |
| 651 | previous = allocation; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | |
| 654 | allocation->next = mem_list->list_head; |
| 655 | allocation->previous = NULL; |
| 656 | |
| 657 | mem_list->list_head = allocation; |
| 658 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 659 | unlock_and_exit: |
| 660 | status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); |
| 661 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | } |
| 663 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | /******************************************************************************* |
| 665 | * |
| 666 | * FUNCTION: acpi_ut_remove_allocation |
| 667 | * |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 668 | * PARAMETERS: Allocation - Address of allocated memory |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | * Component - Component type of caller |
| 670 | * Module - Source file name of caller |
| 671 | * Line - Line number of caller |
| 672 | * |
| 673 | * RETURN: |
| 674 | * |
| 675 | * DESCRIPTION: Deletes an element from the global allocation tracking list. |
| 676 | * |
| 677 | ******************************************************************************/ |
| 678 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 679 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 680 | acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation, |
| 681 | u32 component, char *module, u32 line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 683 | struct acpi_memory_list *mem_list; |
| 684 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 686 | ACPI_FUNCTION_TRACE("ut_remove_allocation"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 688 | mem_list = acpi_gbl_global_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | if (NULL == mem_list->list_head) { |
| 690 | /* No allocations! */ |
| 691 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 692 | _ACPI_REPORT_ERROR(module, line, component, |
| 693 | ("ut_remove_allocation: Empty allocation list, nothing to free!\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 695 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | } |
| 697 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 698 | status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); |
| 699 | if (ACPI_FAILURE(status)) { |
| 700 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | /* Unlink */ |
| 704 | |
| 705 | if (allocation->previous) { |
| 706 | (allocation->previous)->next = allocation->next; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 707 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | mem_list->list_head = allocation->next; |
| 709 | } |
| 710 | |
| 711 | if (allocation->next) { |
| 712 | (allocation->next)->previous = allocation->previous; |
| 713 | } |
| 714 | |
| 715 | /* Mark the segment as deleted */ |
| 716 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 717 | ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 719 | ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n", |
| 720 | allocation->size)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 722 | status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); |
| 723 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | } |
| 725 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | /******************************************************************************* |
| 727 | * |
| 728 | * FUNCTION: acpi_ut_dump_allocation_info |
| 729 | * |
| 730 | * PARAMETERS: |
| 731 | * |
| 732 | * RETURN: None |
| 733 | * |
| 734 | * DESCRIPTION: Print some info about the outstanding allocations. |
| 735 | * |
| 736 | ******************************************************************************/ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | #ifdef ACPI_FUTURE_USAGE |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 739 | void acpi_ut_dump_allocation_info(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | { |
| 741 | /* |
| 742 | struct acpi_memory_list *mem_list; |
| 743 | */ |
| 744 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 745 | ACPI_FUNCTION_TRACE("ut_dump_allocation_info"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | |
| 747 | /* |
| 748 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, |
| 749 | ("%30s: %4d (%3d Kb)\n", "Current allocations", |
| 750 | mem_list->current_count, |
| 751 | ROUND_UP_TO_1K (mem_list->current_size))); |
| 752 | |
| 753 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, |
| 754 | ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", |
| 755 | mem_list->max_concurrent_count, |
| 756 | ROUND_UP_TO_1K (mem_list->max_concurrent_size))); |
| 757 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, |
| 759 | ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", |
| 760 | running_object_count, |
| 761 | ROUND_UP_TO_1K (running_object_size))); |
| 762 | |
| 763 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, |
| 764 | ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", |
| 765 | running_alloc_count, |
| 766 | ROUND_UP_TO_1K (running_alloc_size))); |
| 767 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, |
| 769 | ("%30s: %4d (%3d Kb)\n", "Current Nodes", |
| 770 | acpi_gbl_current_node_count, |
| 771 | ROUND_UP_TO_1K (acpi_gbl_current_node_size))); |
| 772 | |
| 773 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, |
| 774 | ("%30s: %4d (%3d Kb)\n", "Max Nodes", |
| 775 | acpi_gbl_max_concurrent_node_count, |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 776 | ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count * |
| 777 | sizeof (struct acpi_namespace_node))))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | */ |
| 779 | return_VOID; |
| 780 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 781 | #endif /* ACPI_FUTURE_USAGE */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | |
| 783 | /******************************************************************************* |
| 784 | * |
| 785 | * FUNCTION: acpi_ut_dump_allocations |
| 786 | * |
| 787 | * PARAMETERS: Component - Component(s) to dump info for. |
| 788 | * Module - Module to dump info for. NULL means all. |
| 789 | * |
| 790 | * RETURN: None |
| 791 | * |
| 792 | * DESCRIPTION: Print a list of all outstanding allocations. |
| 793 | * |
| 794 | ******************************************************************************/ |
| 795 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 796 | void acpi_ut_dump_allocations(u32 component, char *module) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 798 | struct acpi_debug_mem_block *element; |
| 799 | union acpi_descriptor *descriptor; |
| 800 | u32 num_outstanding = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 802 | ACPI_FUNCTION_TRACE("ut_dump_allocations"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
| 804 | /* |
| 805 | * Walk the allocation list. |
| 806 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 807 | if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | return; |
| 809 | } |
| 810 | |
Robert Moore | 73459f7 | 2005-06-24 00:00:00 -0400 | [diff] [blame] | 811 | element = acpi_gbl_global_list->list_head; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | while (element) { |
| 813 | if ((element->component & component) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 814 | ((module == NULL) |
| 815 | || (0 == ACPI_STRCMP(module, element->module)))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | /* Ignore allocated objects that are in a cache */ |
| 817 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 818 | descriptor = |
| 819 | ACPI_CAST_PTR(union acpi_descriptor, |
| 820 | &element->user_space); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | if (descriptor->descriptor_id != ACPI_DESC_TYPE_CACHED) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 822 | acpi_os_printf("%p Len %04X %9.9s-%d [%s] ", |
| 823 | descriptor, element->size, |
| 824 | element->module, element->line, |
| 825 | acpi_ut_get_descriptor_name |
| 826 | (descriptor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | |
| 828 | /* Most of the elements will be Operand objects. */ |
| 829 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 830 | switch (ACPI_GET_DESCRIPTOR_TYPE(descriptor)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | case ACPI_DESC_TYPE_OPERAND: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 832 | acpi_os_printf("%12.12s R%hd", |
| 833 | acpi_ut_get_type_name |
| 834 | (descriptor->object. |
| 835 | common.type), |
| 836 | descriptor->object. |
| 837 | common.reference_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | break; |
| 839 | |
| 840 | case ACPI_DESC_TYPE_PARSER: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 841 | acpi_os_printf("aml_opcode %04hX", |
| 842 | descriptor->op.asl. |
| 843 | aml_opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | break; |
| 845 | |
| 846 | case ACPI_DESC_TYPE_NAMED: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 847 | acpi_os_printf("%4.4s", |
| 848 | acpi_ut_get_node_name |
| 849 | (&descriptor->node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | break; |
| 851 | |
| 852 | default: |
| 853 | break; |
| 854 | } |
| 855 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 856 | acpi_os_printf("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | num_outstanding++; |
| 858 | } |
| 859 | } |
| 860 | element = element->next; |
| 861 | } |
| 862 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 863 | (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
| 865 | /* Print summary */ |
| 866 | |
| 867 | if (!num_outstanding) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 868 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 869 | "No outstanding allocations.\n")); |
| 870 | } else { |
| 871 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 872 | "%d(%X) Outstanding allocations\n", |
| 873 | num_outstanding, num_outstanding)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | } |
| 875 | |
| 876 | return_VOID; |
| 877 | } |
| 878 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame^] | 879 | #endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */ |