Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Pradeep Kumar Goudagunta | b6c426a | 2014-03-19 16:23:44 +0530 | [diff] [blame] | 2 | * Copyright (c) 2012-2014 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 | |
| 34 | Copyright (c) 2008 QUALCOMM Incorporated. |
| 35 | All Rights Reserved. |
| 36 | Qualcomm Confidential and Proprietary |
| 37 | ===========================================================================*/ |
| 38 | |
| 39 | /*=========================================================================== |
| 40 | |
| 41 | EDIT HISTORY FOR FILE |
| 42 | |
| 43 | |
| 44 | This section contains comments describing changes made to the module. |
| 45 | Notice that changes are listed in reverse chronological order. |
| 46 | |
| 47 | |
| 48 | $Header:$ $DateTime: $ $Author: $ |
| 49 | |
| 50 | |
| 51 | when who what, where, why |
| 52 | -------- --- -------------------------------------------------------- |
| 53 | |
| 54 | ===========================================================================*/ |
| 55 | |
| 56 | /*--------------------------------------------------------------------------- |
| 57 | * Include Files |
| 58 | * ------------------------------------------------------------------------*/ |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 59 | #include "vos_memory.h" |
| 60 | #include "vos_trace.h" |
| 61 | |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 62 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 63 | #include <linux/wcnss_wlan.h> |
| 64 | #define WCNSS_PRE_ALLOC_GET_THRESHOLD (4*1024) |
| 65 | #endif |
| 66 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 67 | #ifdef MEMORY_DEBUG |
| 68 | #include "wlan_hdd_dp_utils.h" |
| 69 | |
| 70 | hdd_list_t vosMemList; |
| 71 | |
| 72 | static v_U8_t WLAN_MEM_HEADER[] = {0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68 }; |
| 73 | 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] | 74 | static int memory_dbug_flag; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 75 | |
| 76 | struct s_vos_mem_struct |
| 77 | { |
| 78 | hdd_list_node_t pNode; |
| 79 | char* fileName; |
| 80 | unsigned int lineNum; |
| 81 | unsigned int size; |
| 82 | v_U8_t header[8]; |
| 83 | }; |
| 84 | #endif |
| 85 | |
| 86 | /*--------------------------------------------------------------------------- |
| 87 | * Preprocessor Definitions and Constants |
| 88 | * ------------------------------------------------------------------------*/ |
| 89 | |
| 90 | /*--------------------------------------------------------------------------- |
| 91 | * Type Declarations |
| 92 | * ------------------------------------------------------------------------*/ |
| 93 | |
| 94 | /*--------------------------------------------------------------------------- |
| 95 | * Data definitions |
| 96 | * ------------------------------------------------------------------------*/ |
| 97 | |
| 98 | /*--------------------------------------------------------------------------- |
| 99 | * External Function implementation |
| 100 | * ------------------------------------------------------------------------*/ |
| 101 | #ifdef MEMORY_DEBUG |
| 102 | void vos_mem_init() |
| 103 | { |
| 104 | /* Initalizing the list with maximum size of 60000 */ |
| 105 | hdd_list_init(&vosMemList, 60000); |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 106 | memory_dbug_flag = 1; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 107 | return; |
| 108 | } |
| 109 | |
| 110 | void vos_mem_clean() |
| 111 | { |
| 112 | v_SIZE_t listSize; |
| 113 | hdd_list_size(&vosMemList, &listSize); |
| 114 | |
| 115 | if(listSize) |
| 116 | { |
| 117 | hdd_list_node_t* pNode; |
| 118 | VOS_STATUS vosStatus; |
| 119 | |
| 120 | struct s_vos_mem_struct* memStruct; |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 121 | char* prev_mleak_file = ""; |
| 122 | unsigned int prev_mleak_lineNum = 0; |
| 123 | unsigned int prev_mleak_sz = 0; |
| 124 | unsigned int mleak_cnt = 0; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 125 | |
| 126 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 127 | "%s: List is not Empty. listSize %d ", __func__, (int)listSize); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 128 | |
| 129 | do |
| 130 | { |
| 131 | spin_lock(&vosMemList.lock); |
| 132 | vosStatus = hdd_list_remove_front(&vosMemList, &pNode); |
| 133 | spin_unlock(&vosMemList.lock); |
| 134 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 135 | { |
| 136 | memStruct = (struct s_vos_mem_struct*)pNode; |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 137 | |
| 138 | /* Take care to log only once multiple memory leaks from |
| 139 | * the same place */ |
| 140 | if(strcmp(prev_mleak_file, memStruct->fileName) || |
| 141 | (prev_mleak_lineNum != memStruct->lineNum) || |
| 142 | (prev_mleak_sz != memStruct->size)) |
| 143 | { |
| 144 | if(mleak_cnt != 0) |
| 145 | { |
| 146 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 147 | "%d Time Memory Leak@ File %s, @Line %d, size %d", |
| 148 | mleak_cnt, prev_mleak_file, prev_mleak_lineNum, |
| 149 | prev_mleak_sz); |
| 150 | } |
| 151 | prev_mleak_file = memStruct->fileName; |
| 152 | prev_mleak_lineNum = memStruct->lineNum; |
| 153 | prev_mleak_sz = memStruct->size; |
| 154 | mleak_cnt = 0; |
| 155 | } |
| 156 | mleak_cnt++; |
| 157 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 158 | kfree((v_VOID_t*)memStruct); |
| 159 | } |
| 160 | }while(vosStatus == VOS_STATUS_SUCCESS); |
lukez | 092ea1a | 2013-03-15 14:53:55 -0700 | [diff] [blame] | 161 | |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 162 | /* Print last memory leak from the module */ |
| 163 | if(mleak_cnt) |
| 164 | { |
| 165 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 166 | "%d Time memory Leak@ File %s, @Line %d, size %d", |
| 167 | mleak_cnt, prev_mleak_file, prev_mleak_lineNum, |
| 168 | prev_mleak_sz); |
| 169 | } |
| 170 | |
| 171 | |
lukez | 092ea1a | 2013-03-15 14:53:55 -0700 | [diff] [blame] | 172 | #ifdef CONFIG_HALT_KMEMLEAK |
| 173 | BUG_ON(0); |
| 174 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 175 | } |
| 176 | } |
| 177 | |
| 178 | void vos_mem_exit() |
| 179 | { |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 180 | if (memory_dbug_flag) |
| 181 | { |
| 182 | vos_mem_clean(); |
| 183 | hdd_list_destroy(&vosMemList); |
| 184 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | v_VOID_t * vos_mem_malloc_debug( v_SIZE_t size, char* fileName, v_U32_t lineNum) |
| 188 | { |
| 189 | struct s_vos_mem_struct* memStruct; |
| 190 | v_VOID_t* memPtr = NULL; |
| 191 | v_SIZE_t new_size; |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 192 | int flags = GFP_KERNEL; |
| 193 | unsigned long IrqFlags; |
| 194 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 195 | |
| 196 | if (size > (1024*1024)) |
| 197 | { |
| 198 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 199 | "%s: called with arg > 1024K; passed in %d !!!", __func__,size); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 200 | return NULL; |
| 201 | } |
Madan Mohan Koyyalamudi | 5c0fe23 | 2013-09-16 22:21:26 +0530 | [diff] [blame] | 202 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 203 | if (in_interrupt()) |
| 204 | { |
Atul Mittal | 1119d0b | 2014-03-25 12:14:37 +0530 | [diff] [blame^] | 205 | flags = GFP_ATOMIC; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 206 | } |
| 207 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 208 | if (!memory_dbug_flag) |
| 209 | { |
| 210 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 211 | v_VOID_t* pmem; |
| 212 | if (size > WCNSS_PRE_ALLOC_GET_THRESHOLD) |
| 213 | { |
| 214 | pmem = wcnss_prealloc_get(size); |
| 215 | if (NULL != pmem) |
| 216 | return pmem; |
| 217 | } |
| 218 | #endif |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 219 | return kmalloc(size, flags); |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 220 | } |
| 221 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 222 | new_size = size + sizeof(struct s_vos_mem_struct) + 8; |
| 223 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 224 | memStruct = (struct s_vos_mem_struct*)kmalloc(new_size, flags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 225 | |
| 226 | if(memStruct != NULL) |
| 227 | { |
| 228 | VOS_STATUS vosStatus; |
| 229 | |
| 230 | memStruct->fileName = fileName; |
| 231 | memStruct->lineNum = lineNum; |
| 232 | memStruct->size = size; |
| 233 | |
| 234 | vos_mem_copy(&memStruct->header[0], &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)); |
| 235 | vos_mem_copy( (v_U8_t*)(memStruct + 1) + size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL)); |
| 236 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 237 | spin_lock_irqsave(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 238 | vosStatus = hdd_list_insert_front(&vosMemList, &memStruct->pNode); |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 239 | spin_unlock_irqrestore(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 240 | if(VOS_STATUS_SUCCESS != vosStatus) |
| 241 | { |
| 242 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Arif Hussain | 0288240 | 2013-11-17 21:55:29 -0800 | [diff] [blame] | 243 | "%s: Unable to insert node into List vosStatus %d", __func__, vosStatus); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | memPtr = (v_VOID_t*)(memStruct + 1); |
| 247 | } |
| 248 | return memPtr; |
| 249 | } |
| 250 | |
| 251 | v_VOID_t vos_mem_free( v_VOID_t *ptr ) |
| 252 | { |
Madan Mohan Koyyalamudi | 5c0fe23 | 2013-09-16 22:21:26 +0530 | [diff] [blame] | 253 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 254 | unsigned long IrqFlags; |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 255 | if (ptr == NULL) |
| 256 | return; |
| 257 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 258 | if (!memory_dbug_flag) |
| 259 | { |
| 260 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 261 | if (wcnss_prealloc_put(ptr)) |
| 262 | return; |
| 263 | #endif |
| 264 | kfree(ptr); |
| 265 | } |
| 266 | else |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 267 | { |
| 268 | VOS_STATUS vosStatus; |
| 269 | struct s_vos_mem_struct* memStruct = ((struct s_vos_mem_struct*)ptr) - 1; |
| 270 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 271 | spin_lock_irqsave(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 272 | vosStatus = hdd_list_remove_node(&vosMemList, &memStruct->pNode); |
Atul Mittal | 1119d0b | 2014-03-25 12:14:37 +0530 | [diff] [blame^] | 273 | spin_unlock_irqrestore(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 274 | |
| 275 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 276 | { |
| 277 | if(0 == vos_mem_compare(memStruct->header, &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)) ) |
| 278 | { |
| 279 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 280 | "Memory Header is corrupted. MemInfo: Filename %s, LineNum %d", |
| 281 | memStruct->fileName, (int)memStruct->lineNum); |
| 282 | } |
| 283 | if(0 == vos_mem_compare( (v_U8_t*)ptr + memStruct->size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL ) ) ) |
| 284 | { |
| 285 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 286 | "Memory Trailer is corrupted. MemInfo: Filename %s, LineNum %d", |
| 287 | memStruct->fileName, (int)memStruct->lineNum); |
| 288 | } |
| 289 | kfree((v_VOID_t*)memStruct); |
| 290 | } |
| 291 | else |
| 292 | { |
| 293 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 294 | "%s: Unallocated memory (double free?)", __func__); |
Pradeep Kumar Goudagunta | b6c426a | 2014-03-19 16:23:44 +0530 | [diff] [blame] | 295 | VOS_BUG(0); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 296 | } |
| 297 | } |
| 298 | } |
| 299 | #else |
| 300 | v_VOID_t * vos_mem_malloc( v_SIZE_t size ) |
| 301 | { |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 302 | int flags = GFP_KERNEL; |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 303 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 304 | v_VOID_t* pmem; |
| 305 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 306 | if (size > (1024*1024)) |
| 307 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 308 | 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] | 309 | return NULL; |
| 310 | } |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 311 | if (in_interrupt() || irqs_disabled() || in_atomic()) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 312 | { |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 313 | flags = GFP_ATOMIC; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 314 | } |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 315 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 316 | if(size > WCNSS_PRE_ALLOC_GET_THRESHOLD) |
| 317 | { |
| 318 | pmem = wcnss_prealloc_get(size); |
| 319 | if(NULL != pmem) |
| 320 | return pmem; |
| 321 | } |
| 322 | #endif |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 323 | return kmalloc(size, flags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | v_VOID_t vos_mem_free( v_VOID_t *ptr ) |
| 327 | { |
| 328 | if (ptr == NULL) |
| 329 | return; |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 330 | |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 331 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 332 | if(wcnss_prealloc_put(ptr)) |
| 333 | return; |
| 334 | #endif |
| 335 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 336 | kfree(ptr); |
| 337 | } |
| 338 | #endif |
| 339 | |
| 340 | v_VOID_t vos_mem_set( v_VOID_t *ptr, v_SIZE_t numBytes, v_BYTE_t value ) |
| 341 | { |
| 342 | if (ptr == NULL) |
| 343 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 344 | 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] | 345 | return; |
| 346 | } |
| 347 | memset(ptr, value, numBytes); |
| 348 | } |
| 349 | |
| 350 | v_VOID_t vos_mem_zero( v_VOID_t *ptr, v_SIZE_t numBytes ) |
| 351 | { |
| 352 | if (0 == numBytes) |
| 353 | { |
| 354 | // special case where ptr can be NULL |
| 355 | return; |
| 356 | } |
| 357 | |
| 358 | if (ptr == NULL) |
| 359 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 360 | 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] | 361 | return; |
| 362 | } |
| 363 | memset(ptr, 0, numBytes); |
| 364 | |
| 365 | } |
| 366 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 367 | v_VOID_t vos_mem_copy( v_VOID_t *pDst, const v_VOID_t *pSrc, v_SIZE_t numBytes ) |
| 368 | { |
| 369 | if (0 == numBytes) |
| 370 | { |
| 371 | // special case where pDst or pSrc can be NULL |
| 372 | return; |
| 373 | } |
| 374 | |
| 375 | if ((pDst == NULL) || (pSrc==NULL)) |
| 376 | { |
| 377 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 378 | "%s called with NULL parameter, source:%p destination:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 379 | __func__, pSrc, pDst); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 380 | VOS_ASSERT(0); |
| 381 | return; |
| 382 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 383 | memcpy(pDst, pSrc, numBytes); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 384 | } |
| 385 | |
| 386 | v_VOID_t vos_mem_move( v_VOID_t *pDst, const v_VOID_t *pSrc, v_SIZE_t numBytes ) |
| 387 | { |
| 388 | if (0 == numBytes) |
| 389 | { |
| 390 | // special case where pDst or pSrc can be NULL |
| 391 | return; |
| 392 | } |
| 393 | |
| 394 | if ((pDst == NULL) || (pSrc==NULL)) |
| 395 | { |
| 396 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 397 | "%s called with NULL parameter, source:%p destination:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 398 | __func__, pSrc, pDst); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 399 | VOS_ASSERT(0); |
| 400 | return; |
| 401 | } |
| 402 | memmove(pDst, pSrc, numBytes); |
| 403 | } |
| 404 | |
| 405 | v_BOOL_t vos_mem_compare( v_VOID_t *pMemory1, v_VOID_t *pMemory2, v_U32_t numBytes ) |
| 406 | { |
| 407 | if (0 == numBytes) |
| 408 | { |
| 409 | // special case where pMemory1 or pMemory2 can be NULL |
| 410 | return VOS_TRUE; |
| 411 | } |
| 412 | |
| 413 | if ((pMemory1 == NULL) || (pMemory2==NULL)) |
| 414 | { |
| 415 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 416 | "%s called with NULL parameter, p1:%p p2:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 417 | __func__, pMemory1, pMemory2); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 418 | VOS_ASSERT(0); |
| 419 | return VOS_FALSE; |
| 420 | } |
| 421 | return (memcmp(pMemory1, pMemory2, numBytes)?VOS_FALSE:VOS_TRUE); |
| 422 | } |
| 423 | |
| 424 | |
| 425 | v_SINT_t vos_mem_compare2( v_VOID_t *pMemory1, v_VOID_t *pMemory2, v_U32_t numBytes ) |
| 426 | |
| 427 | { |
| 428 | return( (v_SINT_t) memcmp( pMemory1, pMemory2, numBytes ) ); |
| 429 | } |
| 430 | |
| 431 | /*---------------------------------------------------------------------------- |
| 432 | |
| 433 | \brief vos_mem_dma_malloc() - vOSS DMA Memory Allocation |
| 434 | |
| 435 | This function will dynamicallly allocate the specified number of bytes of |
| 436 | memory. This memory will have special attributes making it DMA friendly i.e. |
| 437 | it will exist in contiguous, 32-byte aligned uncached memory. A normal |
| 438 | vos_mem_malloc does not yield memory with these attributes. |
| 439 | |
| 440 | NOTE: the special DMA friendly memory is very scarce and this API must be |
| 441 | used sparingly |
| 442 | |
| 443 | On WM, there is nothing special about this memory. SDHC allocates the |
| 444 | DMA friendly buffer and copies the data into it |
| 445 | |
| 446 | \param size - the number of bytes of memory to allocate. |
| 447 | |
| 448 | \return Upon successful allocate, returns a non-NULL pointer to the |
| 449 | allocated memory. If this function is unable to allocate the amount of |
| 450 | memory specified (for any reason) it returns NULL. |
| 451 | |
| 452 | \sa |
| 453 | |
| 454 | --------------------------------------------------------------------------*/ |
| 455 | #ifdef MEMORY_DEBUG |
| 456 | v_VOID_t * vos_mem_dma_malloc_debug( v_SIZE_t size, char* fileName, v_U32_t lineNum) |
| 457 | { |
| 458 | struct s_vos_mem_struct* memStruct; |
| 459 | v_VOID_t* memPtr = NULL; |
| 460 | v_SIZE_t new_size; |
| 461 | |
| 462 | if (in_interrupt()) |
| 463 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 464 | 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] | 465 | return NULL; |
| 466 | } |
| 467 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 468 | if (!memory_dbug_flag) |
| 469 | return kmalloc(size, GFP_KERNEL); |
| 470 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 471 | new_size = size + sizeof(struct s_vos_mem_struct) + 8; |
| 472 | |
| 473 | memStruct = (struct s_vos_mem_struct*)kmalloc(new_size,GFP_KERNEL); |
| 474 | |
| 475 | if(memStruct != NULL) |
| 476 | { |
| 477 | VOS_STATUS vosStatus; |
| 478 | |
| 479 | memStruct->fileName = fileName; |
| 480 | memStruct->lineNum = lineNum; |
| 481 | memStruct->size = size; |
| 482 | |
| 483 | vos_mem_copy(&memStruct->header[0], &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)); |
| 484 | vos_mem_copy( (v_U8_t*)(memStruct + 1) + size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL)); |
| 485 | |
| 486 | spin_lock(&vosMemList.lock); |
| 487 | vosStatus = hdd_list_insert_front(&vosMemList, &memStruct->pNode); |
| 488 | spin_unlock(&vosMemList.lock); |
| 489 | if(VOS_STATUS_SUCCESS != vosStatus) |
| 490 | { |
| 491 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Arif Hussain | 0288240 | 2013-11-17 21:55:29 -0800 | [diff] [blame] | 492 | "%s: Unable to insert node into List vosStatus %d", __func__, vosStatus); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 493 | } |
| 494 | |
| 495 | memPtr = (v_VOID_t*)(memStruct + 1); |
| 496 | } |
| 497 | |
| 498 | return memPtr; |
| 499 | } |
| 500 | |
| 501 | v_VOID_t vos_mem_dma_free( v_VOID_t *ptr ) |
| 502 | { |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 503 | if (ptr == NULL) |
| 504 | return; |
| 505 | |
| 506 | if (memory_dbug_flag) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 507 | { |
| 508 | VOS_STATUS vosStatus; |
| 509 | struct s_vos_mem_struct* memStruct = ((struct s_vos_mem_struct*)ptr) - 1; |
| 510 | |
| 511 | spin_lock(&vosMemList.lock); |
| 512 | vosStatus = hdd_list_remove_node(&vosMemList, &memStruct->pNode); |
| 513 | spin_unlock(&vosMemList.lock); |
| 514 | |
| 515 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 516 | { |
| 517 | if(0 == vos_mem_compare(memStruct->header, &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)) ) |
| 518 | { |
| 519 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 520 | "Memory Header is corrupted. MemInfo: Filename %s, LineNum %d", |
| 521 | memStruct->fileName, (int)memStruct->lineNum); |
| 522 | } |
| 523 | if(0 == vos_mem_compare( (v_U8_t*)ptr + memStruct->size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL ) ) ) |
| 524 | { |
| 525 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 526 | "Memory Trailer is corrupted. MemInfo: Filename %s, LineNum %d", |
| 527 | memStruct->fileName, (int)memStruct->lineNum); |
| 528 | } |
| 529 | kfree((v_VOID_t*)memStruct); |
| 530 | } |
| 531 | } |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 532 | else |
| 533 | kfree(ptr); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 534 | } |
| 535 | #else |
| 536 | v_VOID_t* vos_mem_dma_malloc( v_SIZE_t size ) |
| 537 | { |
| 538 | if (in_interrupt()) |
| 539 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 540 | 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] | 541 | return NULL; |
| 542 | } |
| 543 | return kmalloc(size, GFP_KERNEL); |
| 544 | } |
| 545 | |
| 546 | /*---------------------------------------------------------------------------- |
| 547 | |
| 548 | \brief vos_mem_dma_free() - vOSS DMA Free Memory |
| 549 | |
| 550 | This function will free special DMA friendly memory pointed to by 'ptr'. |
| 551 | |
| 552 | On WM, there is nothing special about the memory being free'd. SDHC will |
| 553 | take care of free'ing the DMA friendly buffer |
| 554 | |
| 555 | \param ptr - pointer to the starting address of the memory to be |
| 556 | free'd. |
| 557 | |
| 558 | \return Nothing |
| 559 | |
| 560 | \sa |
| 561 | |
| 562 | --------------------------------------------------------------------------*/ |
| 563 | v_VOID_t vos_mem_dma_free( v_VOID_t *ptr ) |
| 564 | { |
| 565 | if (ptr == NULL) |
| 566 | return; |
| 567 | kfree(ptr); |
| 568 | } |
| 569 | #endif |