Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Hanumantha Reddy Pothula | 7234295 | 2015-02-26 14:43:54 +0530 | [diff] [blame^] | 2 | * Copyright (c) 2012-2015 The Linux Foundation. All rights reserved. |
Kiet Lam | 1ed83fc | 2014-02-19 01:15:45 -0800 | [diff] [blame] | 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
Gopichand Nakkala | 92f07d8 | 2013-01-08 21:16:34 -0800 | [diff] [blame] | 20 | */ |
Kiet Lam | 1ed83fc | 2014-02-19 01:15:45 -0800 | [diff] [blame] | 21 | |
| 22 | /* |
| 23 | * This file was originally distributed by Qualcomm Atheros, Inc. |
| 24 | * under proprietary terms before Copyright ownership was assigned |
| 25 | * to the Linux Foundation. |
| 26 | */ |
| 27 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 28 | /*=========================================================================== |
| 29 | @file vos_memory.c |
| 30 | |
| 31 | @brief Virtual Operating System Services Memory API |
| 32 | |
| 33 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 34 | ===========================================================================*/ |
| 35 | |
| 36 | /*=========================================================================== |
| 37 | |
| 38 | EDIT HISTORY FOR FILE |
| 39 | |
| 40 | |
| 41 | This section contains comments describing changes made to the module. |
| 42 | Notice that changes are listed in reverse chronological order. |
| 43 | |
| 44 | |
| 45 | $Header:$ $DateTime: $ $Author: $ |
| 46 | |
| 47 | |
| 48 | when who what, where, why |
| 49 | -------- --- -------------------------------------------------------- |
| 50 | |
| 51 | ===========================================================================*/ |
| 52 | |
| 53 | /*--------------------------------------------------------------------------- |
| 54 | * Include Files |
| 55 | * ------------------------------------------------------------------------*/ |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 56 | #include "vos_memory.h" |
| 57 | #include "vos_trace.h" |
Hanumantha Reddy Pothula | 7234295 | 2015-02-26 14:43:54 +0530 | [diff] [blame^] | 58 | #include <vmalloc.h> |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 59 | |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 60 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 61 | #include <linux/wcnss_wlan.h> |
| 62 | #define WCNSS_PRE_ALLOC_GET_THRESHOLD (4*1024) |
| 63 | #endif |
| 64 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 65 | #ifdef MEMORY_DEBUG |
| 66 | #include "wlan_hdd_dp_utils.h" |
| 67 | |
| 68 | hdd_list_t vosMemList; |
| 69 | |
| 70 | static v_U8_t WLAN_MEM_HEADER[] = {0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68 }; |
| 71 | static v_U8_t WLAN_MEM_TAIL[] = {0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87}; |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 72 | static int memory_dbug_flag; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 73 | |
| 74 | struct s_vos_mem_struct |
| 75 | { |
| 76 | hdd_list_node_t pNode; |
| 77 | char* fileName; |
| 78 | unsigned int lineNum; |
| 79 | unsigned int size; |
| 80 | v_U8_t header[8]; |
| 81 | }; |
| 82 | #endif |
| 83 | |
| 84 | /*--------------------------------------------------------------------------- |
| 85 | * Preprocessor Definitions and Constants |
| 86 | * ------------------------------------------------------------------------*/ |
| 87 | |
| 88 | /*--------------------------------------------------------------------------- |
| 89 | * Type Declarations |
| 90 | * ------------------------------------------------------------------------*/ |
| 91 | |
| 92 | /*--------------------------------------------------------------------------- |
| 93 | * Data definitions |
| 94 | * ------------------------------------------------------------------------*/ |
| 95 | |
| 96 | /*--------------------------------------------------------------------------- |
| 97 | * External Function implementation |
| 98 | * ------------------------------------------------------------------------*/ |
| 99 | #ifdef MEMORY_DEBUG |
| 100 | void vos_mem_init() |
| 101 | { |
| 102 | /* Initalizing the list with maximum size of 60000 */ |
| 103 | hdd_list_init(&vosMemList, 60000); |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 104 | memory_dbug_flag = 1; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 105 | return; |
| 106 | } |
| 107 | |
| 108 | void vos_mem_clean() |
| 109 | { |
| 110 | v_SIZE_t listSize; |
| 111 | hdd_list_size(&vosMemList, &listSize); |
| 112 | |
| 113 | if(listSize) |
| 114 | { |
| 115 | hdd_list_node_t* pNode; |
| 116 | VOS_STATUS vosStatus; |
| 117 | |
| 118 | struct s_vos_mem_struct* memStruct; |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 119 | char* prev_mleak_file = ""; |
| 120 | unsigned int prev_mleak_lineNum = 0; |
| 121 | unsigned int prev_mleak_sz = 0; |
| 122 | unsigned int mleak_cnt = 0; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 123 | |
| 124 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 125 | "%s: List is not Empty. listSize %d ", __func__, (int)listSize); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 126 | |
| 127 | do |
| 128 | { |
| 129 | spin_lock(&vosMemList.lock); |
| 130 | vosStatus = hdd_list_remove_front(&vosMemList, &pNode); |
| 131 | spin_unlock(&vosMemList.lock); |
| 132 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 133 | { |
| 134 | memStruct = (struct s_vos_mem_struct*)pNode; |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 135 | |
| 136 | /* Take care to log only once multiple memory leaks from |
| 137 | * the same place */ |
| 138 | if(strcmp(prev_mleak_file, memStruct->fileName) || |
| 139 | (prev_mleak_lineNum != memStruct->lineNum) || |
| 140 | (prev_mleak_sz != memStruct->size)) |
| 141 | { |
| 142 | if(mleak_cnt != 0) |
| 143 | { |
| 144 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 145 | "%d Time Memory Leak@ File %s, @Line %d, size %d", |
| 146 | mleak_cnt, prev_mleak_file, prev_mleak_lineNum, |
| 147 | prev_mleak_sz); |
| 148 | } |
| 149 | prev_mleak_file = memStruct->fileName; |
| 150 | prev_mleak_lineNum = memStruct->lineNum; |
| 151 | prev_mleak_sz = memStruct->size; |
| 152 | mleak_cnt = 0; |
| 153 | } |
| 154 | mleak_cnt++; |
| 155 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 156 | kfree((v_VOID_t*)memStruct); |
| 157 | } |
| 158 | }while(vosStatus == VOS_STATUS_SUCCESS); |
lukez | 092ea1a | 2013-03-15 14:53:55 -0700 | [diff] [blame] | 159 | |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 160 | /* Print last memory leak from the module */ |
| 161 | if(mleak_cnt) |
| 162 | { |
| 163 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 164 | "%d Time memory Leak@ File %s, @Line %d, size %d", |
| 165 | mleak_cnt, prev_mleak_file, prev_mleak_lineNum, |
| 166 | prev_mleak_sz); |
| 167 | } |
| 168 | |
| 169 | |
lukez | 092ea1a | 2013-03-15 14:53:55 -0700 | [diff] [blame] | 170 | #ifdef CONFIG_HALT_KMEMLEAK |
| 171 | BUG_ON(0); |
| 172 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 173 | } |
| 174 | } |
| 175 | |
| 176 | void vos_mem_exit() |
| 177 | { |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 178 | if (memory_dbug_flag) |
| 179 | { |
| 180 | vos_mem_clean(); |
| 181 | hdd_list_destroy(&vosMemList); |
| 182 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 183 | } |
| 184 | |
| 185 | v_VOID_t * vos_mem_malloc_debug( v_SIZE_t size, char* fileName, v_U32_t lineNum) |
| 186 | { |
| 187 | struct s_vos_mem_struct* memStruct; |
| 188 | v_VOID_t* memPtr = NULL; |
| 189 | v_SIZE_t new_size; |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 190 | int flags = GFP_KERNEL; |
| 191 | unsigned long IrqFlags; |
| 192 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 193 | |
| 194 | if (size > (1024*1024)) |
| 195 | { |
| 196 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 197 | "%s: called with arg > 1024K; passed in %d !!!", __func__,size); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 198 | return NULL; |
| 199 | } |
Madan Mohan Koyyalamudi | 5c0fe23 | 2013-09-16 22:21:26 +0530 | [diff] [blame] | 200 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 201 | if (in_interrupt()) |
| 202 | { |
Atul Mittal | 1119d0b | 2014-03-25 12:14:37 +0530 | [diff] [blame] | 203 | flags = GFP_ATOMIC; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 204 | } |
| 205 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 206 | if (!memory_dbug_flag) |
| 207 | { |
| 208 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 209 | v_VOID_t* pmem; |
| 210 | if (size > WCNSS_PRE_ALLOC_GET_THRESHOLD) |
| 211 | { |
| 212 | pmem = wcnss_prealloc_get(size); |
| 213 | if (NULL != pmem) |
| 214 | return pmem; |
| 215 | } |
| 216 | #endif |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 217 | return kmalloc(size, flags); |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 218 | } |
| 219 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 220 | new_size = size + sizeof(struct s_vos_mem_struct) + 8; |
| 221 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 222 | memStruct = (struct s_vos_mem_struct*)kmalloc(new_size, flags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 223 | |
| 224 | if(memStruct != NULL) |
| 225 | { |
| 226 | VOS_STATUS vosStatus; |
| 227 | |
| 228 | memStruct->fileName = fileName; |
| 229 | memStruct->lineNum = lineNum; |
| 230 | memStruct->size = size; |
| 231 | |
| 232 | vos_mem_copy(&memStruct->header[0], &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)); |
| 233 | vos_mem_copy( (v_U8_t*)(memStruct + 1) + size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL)); |
| 234 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 235 | spin_lock_irqsave(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 236 | vosStatus = hdd_list_insert_front(&vosMemList, &memStruct->pNode); |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 237 | spin_unlock_irqrestore(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 238 | if(VOS_STATUS_SUCCESS != vosStatus) |
| 239 | { |
| 240 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Arif Hussain | 0288240 | 2013-11-17 21:55:29 -0800 | [diff] [blame] | 241 | "%s: Unable to insert node into List vosStatus %d", __func__, vosStatus); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | memPtr = (v_VOID_t*)(memStruct + 1); |
| 245 | } |
| 246 | return memPtr; |
| 247 | } |
| 248 | |
| 249 | v_VOID_t vos_mem_free( v_VOID_t *ptr ) |
| 250 | { |
Madan Mohan Koyyalamudi | 5c0fe23 | 2013-09-16 22:21:26 +0530 | [diff] [blame] | 251 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 252 | unsigned long IrqFlags; |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 253 | if (ptr == NULL) |
| 254 | return; |
| 255 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 256 | if (!memory_dbug_flag) |
| 257 | { |
| 258 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 259 | if (wcnss_prealloc_put(ptr)) |
| 260 | return; |
| 261 | #endif |
| 262 | kfree(ptr); |
| 263 | } |
| 264 | else |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 265 | { |
| 266 | VOS_STATUS vosStatus; |
| 267 | struct s_vos_mem_struct* memStruct = ((struct s_vos_mem_struct*)ptr) - 1; |
| 268 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 269 | spin_lock_irqsave(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 270 | vosStatus = hdd_list_remove_node(&vosMemList, &memStruct->pNode); |
Atul Mittal | 1119d0b | 2014-03-25 12:14:37 +0530 | [diff] [blame] | 271 | spin_unlock_irqrestore(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 272 | |
| 273 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 274 | { |
| 275 | if(0 == vos_mem_compare(memStruct->header, &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)) ) |
| 276 | { |
| 277 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 278 | "Memory Header is corrupted. MemInfo: Filename %s, LineNum %d", |
| 279 | memStruct->fileName, (int)memStruct->lineNum); |
| 280 | } |
| 281 | if(0 == vos_mem_compare( (v_U8_t*)ptr + memStruct->size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL ) ) ) |
| 282 | { |
| 283 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 284 | "Memory Trailer is corrupted. MemInfo: Filename %s, LineNum %d", |
| 285 | memStruct->fileName, (int)memStruct->lineNum); |
| 286 | } |
| 287 | kfree((v_VOID_t*)memStruct); |
| 288 | } |
| 289 | else |
| 290 | { |
| 291 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 292 | "%s: Unallocated memory (double free?)", __func__); |
Pradeep Kumar Goudagunta | b6c426a | 2014-03-19 16:23:44 +0530 | [diff] [blame] | 293 | VOS_BUG(0); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 294 | } |
| 295 | } |
| 296 | } |
| 297 | #else |
| 298 | v_VOID_t * vos_mem_malloc( v_SIZE_t size ) |
| 299 | { |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 300 | int flags = GFP_KERNEL; |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 301 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 302 | v_VOID_t* pmem; |
| 303 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 304 | if (size > (1024*1024)) |
| 305 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 306 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, "%s: called with arg > 1024K; passed in %d !!!", __func__,size); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 307 | return NULL; |
| 308 | } |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 309 | if (in_interrupt() || irqs_disabled() || in_atomic()) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 310 | { |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 311 | flags = GFP_ATOMIC; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 312 | } |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 313 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 314 | if(size > WCNSS_PRE_ALLOC_GET_THRESHOLD) |
| 315 | { |
| 316 | pmem = wcnss_prealloc_get(size); |
| 317 | if(NULL != pmem) |
| 318 | return pmem; |
| 319 | } |
| 320 | #endif |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 321 | return kmalloc(size, flags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | v_VOID_t vos_mem_free( v_VOID_t *ptr ) |
| 325 | { |
| 326 | if (ptr == NULL) |
| 327 | return; |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 328 | |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 329 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 330 | if(wcnss_prealloc_put(ptr)) |
| 331 | return; |
| 332 | #endif |
| 333 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 334 | kfree(ptr); |
| 335 | } |
| 336 | #endif |
| 337 | |
Hanumantha Reddy Pothula | 7234295 | 2015-02-26 14:43:54 +0530 | [diff] [blame^] | 338 | v_VOID_t * vos_mem_vmalloc(v_SIZE_t size) |
| 339 | { |
| 340 | if (size == 0 || size >= (1024*1024)) |
| 341 | { |
| 342 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 343 | "%s invalid size: %u", __func__, size); |
| 344 | return NULL; |
| 345 | } |
| 346 | |
| 347 | return vmalloc(size); |
| 348 | } |
| 349 | |
| 350 | v_VOID_t vos_mem_vfree(void *addr) |
| 351 | { |
| 352 | if (addr == NULL) |
| 353 | { |
| 354 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 355 | "%s NULL address passed to free", __func__); |
| 356 | return; |
| 357 | } |
| 358 | |
| 359 | vfree(addr); |
| 360 | return; |
| 361 | } |
| 362 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 363 | v_VOID_t vos_mem_set( v_VOID_t *ptr, v_SIZE_t numBytes, v_BYTE_t value ) |
| 364 | { |
| 365 | if (ptr == NULL) |
| 366 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 367 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, "%s called with NULL parameter ptr", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 368 | return; |
| 369 | } |
| 370 | memset(ptr, value, numBytes); |
| 371 | } |
| 372 | |
| 373 | v_VOID_t vos_mem_zero( v_VOID_t *ptr, v_SIZE_t numBytes ) |
| 374 | { |
| 375 | if (0 == numBytes) |
| 376 | { |
| 377 | // special case where ptr can be NULL |
| 378 | return; |
| 379 | } |
| 380 | |
| 381 | if (ptr == NULL) |
| 382 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 383 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, "%s called with NULL parameter ptr", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 384 | return; |
| 385 | } |
| 386 | memset(ptr, 0, numBytes); |
| 387 | |
| 388 | } |
| 389 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 390 | v_VOID_t vos_mem_copy( v_VOID_t *pDst, const v_VOID_t *pSrc, v_SIZE_t numBytes ) |
| 391 | { |
| 392 | if (0 == numBytes) |
| 393 | { |
| 394 | // special case where pDst or pSrc can be NULL |
| 395 | return; |
| 396 | } |
| 397 | |
| 398 | if ((pDst == NULL) || (pSrc==NULL)) |
| 399 | { |
| 400 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 401 | "%s called with NULL parameter, source:%p destination:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 402 | __func__, pSrc, pDst); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 403 | VOS_ASSERT(0); |
| 404 | return; |
| 405 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 406 | memcpy(pDst, pSrc, numBytes); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 407 | } |
| 408 | |
| 409 | v_VOID_t vos_mem_move( v_VOID_t *pDst, const v_VOID_t *pSrc, v_SIZE_t numBytes ) |
| 410 | { |
| 411 | if (0 == numBytes) |
| 412 | { |
| 413 | // special case where pDst or pSrc can be NULL |
| 414 | return; |
| 415 | } |
| 416 | |
| 417 | if ((pDst == NULL) || (pSrc==NULL)) |
| 418 | { |
| 419 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 420 | "%s called with NULL parameter, source:%p destination:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 421 | __func__, pSrc, pDst); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 422 | VOS_ASSERT(0); |
| 423 | return; |
| 424 | } |
| 425 | memmove(pDst, pSrc, numBytes); |
| 426 | } |
| 427 | |
| 428 | v_BOOL_t vos_mem_compare( v_VOID_t *pMemory1, v_VOID_t *pMemory2, v_U32_t numBytes ) |
| 429 | { |
| 430 | if (0 == numBytes) |
| 431 | { |
| 432 | // special case where pMemory1 or pMemory2 can be NULL |
| 433 | return VOS_TRUE; |
| 434 | } |
| 435 | |
| 436 | if ((pMemory1 == NULL) || (pMemory2==NULL)) |
| 437 | { |
| 438 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 439 | "%s called with NULL parameter, p1:%p p2:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 440 | __func__, pMemory1, pMemory2); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 441 | VOS_ASSERT(0); |
| 442 | return VOS_FALSE; |
| 443 | } |
| 444 | return (memcmp(pMemory1, pMemory2, numBytes)?VOS_FALSE:VOS_TRUE); |
| 445 | } |
| 446 | |
| 447 | |
| 448 | v_SINT_t vos_mem_compare2( v_VOID_t *pMemory1, v_VOID_t *pMemory2, v_U32_t numBytes ) |
| 449 | |
| 450 | { |
| 451 | return( (v_SINT_t) memcmp( pMemory1, pMemory2, numBytes ) ); |
| 452 | } |
| 453 | |
| 454 | /*---------------------------------------------------------------------------- |
| 455 | |
| 456 | \brief vos_mem_dma_malloc() - vOSS DMA Memory Allocation |
| 457 | |
| 458 | This function will dynamicallly allocate the specified number of bytes of |
| 459 | memory. This memory will have special attributes making it DMA friendly i.e. |
| 460 | it will exist in contiguous, 32-byte aligned uncached memory. A normal |
| 461 | vos_mem_malloc does not yield memory with these attributes. |
| 462 | |
| 463 | NOTE: the special DMA friendly memory is very scarce and this API must be |
| 464 | used sparingly |
| 465 | |
| 466 | On WM, there is nothing special about this memory. SDHC allocates the |
| 467 | DMA friendly buffer and copies the data into it |
| 468 | |
| 469 | \param size - the number of bytes of memory to allocate. |
| 470 | |
| 471 | \return Upon successful allocate, returns a non-NULL pointer to the |
| 472 | allocated memory. If this function is unable to allocate the amount of |
| 473 | memory specified (for any reason) it returns NULL. |
| 474 | |
| 475 | \sa |
| 476 | |
| 477 | --------------------------------------------------------------------------*/ |
| 478 | #ifdef MEMORY_DEBUG |
| 479 | v_VOID_t * vos_mem_dma_malloc_debug( v_SIZE_t size, char* fileName, v_U32_t lineNum) |
| 480 | { |
| 481 | struct s_vos_mem_struct* memStruct; |
| 482 | v_VOID_t* memPtr = NULL; |
| 483 | v_SIZE_t new_size; |
| 484 | |
| 485 | if (in_interrupt()) |
| 486 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 487 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, "%s cannot be called from interrupt context!!!", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 488 | return NULL; |
| 489 | } |
| 490 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 491 | if (!memory_dbug_flag) |
| 492 | return kmalloc(size, GFP_KERNEL); |
| 493 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 494 | new_size = size + sizeof(struct s_vos_mem_struct) + 8; |
| 495 | |
| 496 | memStruct = (struct s_vos_mem_struct*)kmalloc(new_size,GFP_KERNEL); |
| 497 | |
| 498 | if(memStruct != NULL) |
| 499 | { |
| 500 | VOS_STATUS vosStatus; |
| 501 | |
| 502 | memStruct->fileName = fileName; |
| 503 | memStruct->lineNum = lineNum; |
| 504 | memStruct->size = size; |
| 505 | |
| 506 | vos_mem_copy(&memStruct->header[0], &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)); |
| 507 | vos_mem_copy( (v_U8_t*)(memStruct + 1) + size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL)); |
| 508 | |
| 509 | spin_lock(&vosMemList.lock); |
| 510 | vosStatus = hdd_list_insert_front(&vosMemList, &memStruct->pNode); |
| 511 | spin_unlock(&vosMemList.lock); |
| 512 | if(VOS_STATUS_SUCCESS != vosStatus) |
| 513 | { |
| 514 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Arif Hussain | 0288240 | 2013-11-17 21:55:29 -0800 | [diff] [blame] | 515 | "%s: Unable to insert node into List vosStatus %d", __func__, vosStatus); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 516 | } |
| 517 | |
| 518 | memPtr = (v_VOID_t*)(memStruct + 1); |
| 519 | } |
| 520 | |
| 521 | return memPtr; |
| 522 | } |
| 523 | |
| 524 | v_VOID_t vos_mem_dma_free( v_VOID_t *ptr ) |
| 525 | { |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 526 | if (ptr == NULL) |
| 527 | return; |
| 528 | |
| 529 | if (memory_dbug_flag) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 530 | { |
| 531 | VOS_STATUS vosStatus; |
| 532 | struct s_vos_mem_struct* memStruct = ((struct s_vos_mem_struct*)ptr) - 1; |
| 533 | |
| 534 | spin_lock(&vosMemList.lock); |
| 535 | vosStatus = hdd_list_remove_node(&vosMemList, &memStruct->pNode); |
| 536 | spin_unlock(&vosMemList.lock); |
| 537 | |
| 538 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 539 | { |
| 540 | if(0 == vos_mem_compare(memStruct->header, &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)) ) |
| 541 | { |
| 542 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 543 | "Memory Header is corrupted. MemInfo: Filename %s, LineNum %d", |
| 544 | memStruct->fileName, (int)memStruct->lineNum); |
| 545 | } |
| 546 | if(0 == vos_mem_compare( (v_U8_t*)ptr + memStruct->size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL ) ) ) |
| 547 | { |
| 548 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 549 | "Memory Trailer is corrupted. MemInfo: Filename %s, LineNum %d", |
| 550 | memStruct->fileName, (int)memStruct->lineNum); |
| 551 | } |
| 552 | kfree((v_VOID_t*)memStruct); |
| 553 | } |
| 554 | } |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 555 | else |
| 556 | kfree(ptr); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 557 | } |
| 558 | #else |
| 559 | v_VOID_t* vos_mem_dma_malloc( v_SIZE_t size ) |
| 560 | { |
| 561 | if (in_interrupt()) |
| 562 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 563 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, "%s cannot be called from interrupt context!!!", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 564 | return NULL; |
| 565 | } |
| 566 | return kmalloc(size, GFP_KERNEL); |
| 567 | } |
| 568 | |
| 569 | /*---------------------------------------------------------------------------- |
| 570 | |
| 571 | \brief vos_mem_dma_free() - vOSS DMA Free Memory |
| 572 | |
| 573 | This function will free special DMA friendly memory pointed to by 'ptr'. |
| 574 | |
| 575 | On WM, there is nothing special about the memory being free'd. SDHC will |
| 576 | take care of free'ing the DMA friendly buffer |
| 577 | |
| 578 | \param ptr - pointer to the starting address of the memory to be |
| 579 | free'd. |
| 580 | |
| 581 | \return Nothing |
| 582 | |
| 583 | \sa |
| 584 | |
| 585 | --------------------------------------------------------------------------*/ |
| 586 | v_VOID_t vos_mem_dma_free( v_VOID_t *ptr ) |
| 587 | { |
| 588 | if (ptr == NULL) |
| 589 | return; |
| 590 | kfree(ptr); |
| 591 | } |
| 592 | #endif |