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" |
Abhishek Singh | 837adf2 | 2015-10-01 17:37:37 +0530 | [diff] [blame^] | 58 | #include "vos_api.h" |
Hanumantha Reddy Pothula | 7234295 | 2015-02-26 14:43:54 +0530 | [diff] [blame] | 59 | #include <vmalloc.h> |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 60 | |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 61 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 62 | #include <linux/wcnss_wlan.h> |
| 63 | #define WCNSS_PRE_ALLOC_GET_THRESHOLD (4*1024) |
| 64 | #endif |
| 65 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 66 | #ifdef MEMORY_DEBUG |
| 67 | #include "wlan_hdd_dp_utils.h" |
| 68 | |
| 69 | hdd_list_t vosMemList; |
| 70 | |
| 71 | static v_U8_t WLAN_MEM_HEADER[] = {0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68 }; |
| 72 | 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] | 73 | static int memory_dbug_flag; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 74 | |
| 75 | struct s_vos_mem_struct |
| 76 | { |
| 77 | hdd_list_node_t pNode; |
| 78 | char* fileName; |
| 79 | unsigned int lineNum; |
| 80 | unsigned int size; |
| 81 | v_U8_t header[8]; |
| 82 | }; |
| 83 | #endif |
| 84 | |
| 85 | /*--------------------------------------------------------------------------- |
| 86 | * Preprocessor Definitions and Constants |
| 87 | * ------------------------------------------------------------------------*/ |
| 88 | |
| 89 | /*--------------------------------------------------------------------------- |
| 90 | * Type Declarations |
| 91 | * ------------------------------------------------------------------------*/ |
| 92 | |
| 93 | /*--------------------------------------------------------------------------- |
| 94 | * Data definitions |
| 95 | * ------------------------------------------------------------------------*/ |
| 96 | |
| 97 | /*--------------------------------------------------------------------------- |
| 98 | * External Function implementation |
| 99 | * ------------------------------------------------------------------------*/ |
| 100 | #ifdef MEMORY_DEBUG |
| 101 | void vos_mem_init() |
| 102 | { |
| 103 | /* Initalizing the list with maximum size of 60000 */ |
| 104 | hdd_list_init(&vosMemList, 60000); |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 105 | memory_dbug_flag = 1; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 106 | return; |
| 107 | } |
| 108 | |
| 109 | void vos_mem_clean() |
| 110 | { |
| 111 | v_SIZE_t listSize; |
| 112 | hdd_list_size(&vosMemList, &listSize); |
| 113 | |
| 114 | if(listSize) |
| 115 | { |
| 116 | hdd_list_node_t* pNode; |
| 117 | VOS_STATUS vosStatus; |
| 118 | |
| 119 | struct s_vos_mem_struct* memStruct; |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 120 | char* prev_mleak_file = ""; |
| 121 | unsigned int prev_mleak_lineNum = 0; |
| 122 | unsigned int prev_mleak_sz = 0; |
| 123 | unsigned int mleak_cnt = 0; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 124 | |
| 125 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 126 | "%s: List is not Empty. listSize %d ", __func__, (int)listSize); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 127 | |
| 128 | do |
| 129 | { |
| 130 | spin_lock(&vosMemList.lock); |
| 131 | vosStatus = hdd_list_remove_front(&vosMemList, &pNode); |
| 132 | spin_unlock(&vosMemList.lock); |
| 133 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 134 | { |
| 135 | memStruct = (struct s_vos_mem_struct*)pNode; |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 136 | |
| 137 | /* Take care to log only once multiple memory leaks from |
| 138 | * the same place */ |
| 139 | if(strcmp(prev_mleak_file, memStruct->fileName) || |
| 140 | (prev_mleak_lineNum != memStruct->lineNum) || |
| 141 | (prev_mleak_sz != memStruct->size)) |
| 142 | { |
| 143 | if(mleak_cnt != 0) |
| 144 | { |
| 145 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 146 | "%d Time Memory Leak@ File %s, @Line %d, size %d", |
| 147 | mleak_cnt, prev_mleak_file, prev_mleak_lineNum, |
| 148 | prev_mleak_sz); |
| 149 | } |
| 150 | prev_mleak_file = memStruct->fileName; |
| 151 | prev_mleak_lineNum = memStruct->lineNum; |
| 152 | prev_mleak_sz = memStruct->size; |
| 153 | mleak_cnt = 0; |
| 154 | } |
| 155 | mleak_cnt++; |
| 156 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 157 | kfree((v_VOID_t*)memStruct); |
| 158 | } |
| 159 | }while(vosStatus == VOS_STATUS_SUCCESS); |
lukez | 092ea1a | 2013-03-15 14:53:55 -0700 | [diff] [blame] | 160 | |
Manjunathappa Prakash | 0e7e347 | 2013-11-22 15:38:14 -0800 | [diff] [blame] | 161 | /* Print last memory leak from the module */ |
| 162 | if(mleak_cnt) |
| 163 | { |
| 164 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 165 | "%d Time memory Leak@ File %s, @Line %d, size %d", |
| 166 | mleak_cnt, prev_mleak_file, prev_mleak_lineNum, |
| 167 | prev_mleak_sz); |
| 168 | } |
| 169 | |
| 170 | |
lukez | 092ea1a | 2013-03-15 14:53:55 -0700 | [diff] [blame] | 171 | #ifdef CONFIG_HALT_KMEMLEAK |
| 172 | BUG_ON(0); |
| 173 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 174 | } |
| 175 | } |
| 176 | |
| 177 | void vos_mem_exit() |
| 178 | { |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 179 | if (memory_dbug_flag) |
| 180 | { |
| 181 | vos_mem_clean(); |
| 182 | hdd_list_destroy(&vosMemList); |
| 183 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | v_VOID_t * vos_mem_malloc_debug( v_SIZE_t size, char* fileName, v_U32_t lineNum) |
| 187 | { |
| 188 | struct s_vos_mem_struct* memStruct; |
| 189 | v_VOID_t* memPtr = NULL; |
| 190 | v_SIZE_t new_size; |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 191 | int flags = GFP_KERNEL; |
| 192 | unsigned long IrqFlags; |
| 193 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 194 | |
Hanumantha Reddy Pothula | f7d308c | 2015-03-24 13:44:52 +0530 | [diff] [blame] | 195 | if (size > (1024*1024) || size == 0) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 196 | { |
| 197 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Hanumantha Reddy Pothula | f7d308c | 2015-03-24 13:44:52 +0530 | [diff] [blame] | 198 | "%s: called with invalid arg %u !!!", __func__, size); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 199 | return NULL; |
| 200 | } |
Madan Mohan Koyyalamudi | 5c0fe23 | 2013-09-16 22:21:26 +0530 | [diff] [blame] | 201 | |
Nirav Shah | 20aec4a | 2015-08-24 14:55:13 +0530 | [diff] [blame] | 202 | if (in_interrupt() || irqs_disabled() || in_atomic()) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 203 | { |
Atul Mittal | 1119d0b | 2014-03-25 12:14:37 +0530 | [diff] [blame] | 204 | flags = GFP_ATOMIC; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 205 | } |
| 206 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 207 | if (!memory_dbug_flag) |
| 208 | { |
| 209 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 210 | v_VOID_t* pmem; |
| 211 | if (size > WCNSS_PRE_ALLOC_GET_THRESHOLD) |
| 212 | { |
| 213 | pmem = wcnss_prealloc_get(size); |
| 214 | if (NULL != pmem) |
| 215 | return pmem; |
| 216 | } |
| 217 | #endif |
Abhishek Singh | 837adf2 | 2015-10-01 17:37:37 +0530 | [diff] [blame^] | 218 | memPtr = kmalloc(size, flags); |
| 219 | if ((flags != GFP_ATOMIC) && (NULL == memPtr)) |
| 220 | { |
| 221 | WARN_ON(1); |
| 222 | vos_fatal_event_logs_req(WLAN_LOG_TYPE_FATAL, |
| 223 | WLAN_LOG_INDICATOR_HOST_ONLY, |
| 224 | WLAN_LOG_REASON_MALLOC_FAIL, |
| 225 | false, true); |
| 226 | } |
| 227 | return memPtr; |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 228 | } |
| 229 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 230 | new_size = size + sizeof(struct s_vos_mem_struct) + 8; |
| 231 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 232 | memStruct = (struct s_vos_mem_struct*)kmalloc(new_size, flags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 233 | |
| 234 | if(memStruct != NULL) |
| 235 | { |
| 236 | VOS_STATUS vosStatus; |
| 237 | |
| 238 | memStruct->fileName = fileName; |
| 239 | memStruct->lineNum = lineNum; |
| 240 | memStruct->size = size; |
| 241 | |
| 242 | vos_mem_copy(&memStruct->header[0], &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)); |
| 243 | vos_mem_copy( (v_U8_t*)(memStruct + 1) + size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL)); |
| 244 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 245 | spin_lock_irqsave(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 246 | vosStatus = hdd_list_insert_front(&vosMemList, &memStruct->pNode); |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 247 | spin_unlock_irqrestore(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 248 | if(VOS_STATUS_SUCCESS != vosStatus) |
| 249 | { |
| 250 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Arif Hussain | 0288240 | 2013-11-17 21:55:29 -0800 | [diff] [blame] | 251 | "%s: Unable to insert node into List vosStatus %d", __func__, vosStatus); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | memPtr = (v_VOID_t*)(memStruct + 1); |
| 255 | } |
Abhishek Singh | 837adf2 | 2015-10-01 17:37:37 +0530 | [diff] [blame^] | 256 | if ((flags != GFP_ATOMIC) && (NULL == memStruct)) |
| 257 | { |
| 258 | WARN_ON(1); |
| 259 | vos_fatal_event_logs_req(WLAN_LOG_TYPE_FATAL, |
| 260 | WLAN_LOG_INDICATOR_HOST_ONLY, |
| 261 | WLAN_LOG_REASON_MALLOC_FAIL, |
| 262 | false, true); |
| 263 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 264 | return memPtr; |
| 265 | } |
| 266 | |
| 267 | v_VOID_t vos_mem_free( v_VOID_t *ptr ) |
| 268 | { |
Madan Mohan Koyyalamudi | 5c0fe23 | 2013-09-16 22:21:26 +0530 | [diff] [blame] | 269 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 270 | unsigned long IrqFlags; |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 271 | if (ptr == NULL) |
| 272 | return; |
| 273 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 274 | if (!memory_dbug_flag) |
| 275 | { |
| 276 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 277 | if (wcnss_prealloc_put(ptr)) |
| 278 | return; |
| 279 | #endif |
| 280 | kfree(ptr); |
| 281 | } |
| 282 | else |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 283 | { |
| 284 | VOS_STATUS vosStatus; |
| 285 | struct s_vos_mem_struct* memStruct = ((struct s_vos_mem_struct*)ptr) - 1; |
| 286 | |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 287 | spin_lock_irqsave(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 288 | vosStatus = hdd_list_remove_node(&vosMemList, &memStruct->pNode); |
Atul Mittal | 1119d0b | 2014-03-25 12:14:37 +0530 | [diff] [blame] | 289 | spin_unlock_irqrestore(&vosMemList.lock, IrqFlags); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 290 | |
| 291 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 292 | { |
| 293 | if(0 == vos_mem_compare(memStruct->header, &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)) ) |
| 294 | { |
| 295 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 296 | "Memory Header is corrupted. MemInfo: Filename %s, LineNum %d", |
| 297 | memStruct->fileName, (int)memStruct->lineNum); |
| 298 | } |
| 299 | if(0 == vos_mem_compare( (v_U8_t*)ptr + memStruct->size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL ) ) ) |
| 300 | { |
| 301 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 302 | "Memory Trailer is corrupted. MemInfo: Filename %s, LineNum %d", |
| 303 | memStruct->fileName, (int)memStruct->lineNum); |
| 304 | } |
| 305 | kfree((v_VOID_t*)memStruct); |
| 306 | } |
| 307 | else |
| 308 | { |
| 309 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 310 | "%s: Unallocated memory (double free?)", __func__); |
Pradeep Kumar Goudagunta | b6c426a | 2014-03-19 16:23:44 +0530 | [diff] [blame] | 311 | VOS_BUG(0); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 312 | } |
| 313 | } |
| 314 | } |
| 315 | #else |
| 316 | v_VOID_t * vos_mem_malloc( v_SIZE_t size ) |
| 317 | { |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 318 | int flags = GFP_KERNEL; |
Abhishek Singh | 837adf2 | 2015-10-01 17:37:37 +0530 | [diff] [blame^] | 319 | v_VOID_t* memPtr = NULL; |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 320 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 321 | v_VOID_t* pmem; |
| 322 | #endif |
Hanumantha Reddy Pothula | f7d308c | 2015-03-24 13:44:52 +0530 | [diff] [blame] | 323 | if (size > (1024*1024) || size == 0) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 324 | { |
Hanumantha Reddy Pothula | f7d308c | 2015-03-24 13:44:52 +0530 | [diff] [blame] | 325 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 326 | "%s: called with invalid arg %u !!!", __func__, size); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 327 | return NULL; |
| 328 | } |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 329 | if (in_interrupt() || irqs_disabled() || in_atomic()) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 330 | { |
Atul Mittal | 93d4659 | 2014-03-14 13:42:06 +0530 | [diff] [blame] | 331 | flags = GFP_ATOMIC; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 332 | } |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 333 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 334 | if(size > WCNSS_PRE_ALLOC_GET_THRESHOLD) |
| 335 | { |
| 336 | pmem = wcnss_prealloc_get(size); |
| 337 | if(NULL != pmem) |
| 338 | return pmem; |
| 339 | } |
| 340 | #endif |
Abhishek Singh | 837adf2 | 2015-10-01 17:37:37 +0530 | [diff] [blame^] | 341 | memPtr = kmalloc(size, flags); |
| 342 | if ((flags != GFP_ATOMIC) && (NULL == memPtr)) |
| 343 | { |
| 344 | WARN_ON(1); |
| 345 | vos_fatal_event_logs_req(WLAN_LOG_TYPE_FATAL, |
| 346 | WLAN_LOG_INDICATOR_HOST_ONLY, |
| 347 | WLAN_LOG_REASON_MALLOC_FAIL, |
| 348 | false, true); |
| 349 | } |
| 350 | return memPtr; |
| 351 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 352 | } |
| 353 | |
| 354 | v_VOID_t vos_mem_free( v_VOID_t *ptr ) |
| 355 | { |
| 356 | if (ptr == NULL) |
| 357 | return; |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 358 | |
Mohit Khanna | 49a87a8 | 2012-09-11 18:03:14 -0700 | [diff] [blame] | 359 | #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| 360 | if(wcnss_prealloc_put(ptr)) |
| 361 | return; |
| 362 | #endif |
| 363 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 364 | kfree(ptr); |
| 365 | } |
| 366 | #endif |
| 367 | |
Hanumantha Reddy Pothula | 7234295 | 2015-02-26 14:43:54 +0530 | [diff] [blame] | 368 | v_VOID_t * vos_mem_vmalloc(v_SIZE_t size) |
| 369 | { |
| 370 | if (size == 0 || size >= (1024*1024)) |
| 371 | { |
| 372 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 373 | "%s invalid size: %u", __func__, size); |
| 374 | return NULL; |
| 375 | } |
| 376 | |
| 377 | return vmalloc(size); |
| 378 | } |
| 379 | |
| 380 | v_VOID_t vos_mem_vfree(void *addr) |
| 381 | { |
| 382 | if (addr == NULL) |
| 383 | { |
| 384 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 385 | "%s NULL address passed to free", __func__); |
| 386 | return; |
| 387 | } |
| 388 | |
| 389 | vfree(addr); |
| 390 | return; |
| 391 | } |
| 392 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 393 | v_VOID_t vos_mem_set( v_VOID_t *ptr, v_SIZE_t numBytes, v_BYTE_t value ) |
| 394 | { |
| 395 | if (ptr == NULL) |
| 396 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 397 | 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] | 398 | return; |
| 399 | } |
| 400 | memset(ptr, value, numBytes); |
| 401 | } |
| 402 | |
| 403 | v_VOID_t vos_mem_zero( v_VOID_t *ptr, v_SIZE_t numBytes ) |
| 404 | { |
| 405 | if (0 == numBytes) |
| 406 | { |
| 407 | // special case where ptr can be NULL |
| 408 | return; |
| 409 | } |
| 410 | |
| 411 | if (ptr == NULL) |
| 412 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 413 | 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] | 414 | return; |
| 415 | } |
| 416 | memset(ptr, 0, numBytes); |
| 417 | |
| 418 | } |
| 419 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 420 | v_VOID_t vos_mem_copy( v_VOID_t *pDst, const v_VOID_t *pSrc, v_SIZE_t numBytes ) |
| 421 | { |
| 422 | if (0 == numBytes) |
| 423 | { |
| 424 | // special case where pDst or pSrc can be NULL |
| 425 | return; |
| 426 | } |
| 427 | |
| 428 | if ((pDst == NULL) || (pSrc==NULL)) |
| 429 | { |
| 430 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 431 | "%s called with NULL parameter, source:%p destination:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 432 | __func__, pSrc, pDst); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 433 | VOS_ASSERT(0); |
| 434 | return; |
| 435 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 436 | memcpy(pDst, pSrc, numBytes); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | v_VOID_t vos_mem_move( v_VOID_t *pDst, const v_VOID_t *pSrc, v_SIZE_t numBytes ) |
| 440 | { |
| 441 | if (0 == numBytes) |
| 442 | { |
| 443 | // special case where pDst or pSrc can be NULL |
| 444 | return; |
| 445 | } |
| 446 | |
| 447 | if ((pDst == NULL) || (pSrc==NULL)) |
| 448 | { |
| 449 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 450 | "%s called with NULL parameter, source:%p destination:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 451 | __func__, pSrc, pDst); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 452 | VOS_ASSERT(0); |
| 453 | return; |
| 454 | } |
| 455 | memmove(pDst, pSrc, numBytes); |
| 456 | } |
| 457 | |
Anand N Sunkad | b3ab97d | 2015-07-29 09:58:13 +0530 | [diff] [blame] | 458 | v_BOOL_t vos_mem_compare( |
| 459 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)) |
| 460 | const v_VOID_t *pMemory1, |
| 461 | #else |
| 462 | v_VOID_t *pMemory1, |
| 463 | #endif |
| 464 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)) |
| 465 | const v_VOID_t *pMemory2, |
| 466 | #else |
| 467 | v_VOID_t *pMemory2, |
| 468 | #endif |
| 469 | v_U32_t numBytes ) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 470 | { |
| 471 | if (0 == numBytes) |
| 472 | { |
| 473 | // special case where pMemory1 or pMemory2 can be NULL |
| 474 | return VOS_TRUE; |
| 475 | } |
| 476 | |
| 477 | if ((pMemory1 == NULL) || (pMemory2==NULL)) |
| 478 | { |
| 479 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| 480 | "%s called with NULL parameter, p1:%p p2:%p", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 481 | __func__, pMemory1, pMemory2); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 482 | VOS_ASSERT(0); |
| 483 | return VOS_FALSE; |
| 484 | } |
| 485 | return (memcmp(pMemory1, pMemory2, numBytes)?VOS_FALSE:VOS_TRUE); |
| 486 | } |
| 487 | |
| 488 | |
| 489 | v_SINT_t vos_mem_compare2( v_VOID_t *pMemory1, v_VOID_t *pMemory2, v_U32_t numBytes ) |
| 490 | |
| 491 | { |
| 492 | return( (v_SINT_t) memcmp( pMemory1, pMemory2, numBytes ) ); |
| 493 | } |
| 494 | |
| 495 | /*---------------------------------------------------------------------------- |
| 496 | |
| 497 | \brief vos_mem_dma_malloc() - vOSS DMA Memory Allocation |
| 498 | |
| 499 | This function will dynamicallly allocate the specified number of bytes of |
| 500 | memory. This memory will have special attributes making it DMA friendly i.e. |
| 501 | it will exist in contiguous, 32-byte aligned uncached memory. A normal |
| 502 | vos_mem_malloc does not yield memory with these attributes. |
| 503 | |
| 504 | NOTE: the special DMA friendly memory is very scarce and this API must be |
| 505 | used sparingly |
| 506 | |
| 507 | On WM, there is nothing special about this memory. SDHC allocates the |
| 508 | DMA friendly buffer and copies the data into it |
| 509 | |
| 510 | \param size - the number of bytes of memory to allocate. |
| 511 | |
| 512 | \return Upon successful allocate, returns a non-NULL pointer to the |
| 513 | allocated memory. If this function is unable to allocate the amount of |
| 514 | memory specified (for any reason) it returns NULL. |
| 515 | |
| 516 | \sa |
| 517 | |
| 518 | --------------------------------------------------------------------------*/ |
| 519 | #ifdef MEMORY_DEBUG |
| 520 | v_VOID_t * vos_mem_dma_malloc_debug( v_SIZE_t size, char* fileName, v_U32_t lineNum) |
| 521 | { |
| 522 | struct s_vos_mem_struct* memStruct; |
| 523 | v_VOID_t* memPtr = NULL; |
| 524 | v_SIZE_t new_size; |
| 525 | |
| 526 | if (in_interrupt()) |
| 527 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 528 | 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] | 529 | return NULL; |
| 530 | } |
| 531 | |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 532 | if (!memory_dbug_flag) |
| 533 | return kmalloc(size, GFP_KERNEL); |
| 534 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 535 | new_size = size + sizeof(struct s_vos_mem_struct) + 8; |
| 536 | |
| 537 | memStruct = (struct s_vos_mem_struct*)kmalloc(new_size,GFP_KERNEL); |
| 538 | |
| 539 | if(memStruct != NULL) |
| 540 | { |
| 541 | VOS_STATUS vosStatus; |
| 542 | |
| 543 | memStruct->fileName = fileName; |
| 544 | memStruct->lineNum = lineNum; |
| 545 | memStruct->size = size; |
| 546 | |
| 547 | vos_mem_copy(&memStruct->header[0], &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)); |
| 548 | vos_mem_copy( (v_U8_t*)(memStruct + 1) + size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL)); |
| 549 | |
| 550 | spin_lock(&vosMemList.lock); |
| 551 | vosStatus = hdd_list_insert_front(&vosMemList, &memStruct->pNode); |
| 552 | spin_unlock(&vosMemList.lock); |
| 553 | if(VOS_STATUS_SUCCESS != vosStatus) |
| 554 | { |
| 555 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
Arif Hussain | 0288240 | 2013-11-17 21:55:29 -0800 | [diff] [blame] | 556 | "%s: Unable to insert node into List vosStatus %d", __func__, vosStatus); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | memPtr = (v_VOID_t*)(memStruct + 1); |
| 560 | } |
| 561 | |
| 562 | return memPtr; |
| 563 | } |
| 564 | |
| 565 | v_VOID_t vos_mem_dma_free( v_VOID_t *ptr ) |
| 566 | { |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 567 | if (ptr == NULL) |
| 568 | return; |
| 569 | |
| 570 | if (memory_dbug_flag) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 571 | { |
| 572 | VOS_STATUS vosStatus; |
| 573 | struct s_vos_mem_struct* memStruct = ((struct s_vos_mem_struct*)ptr) - 1; |
| 574 | |
| 575 | spin_lock(&vosMemList.lock); |
| 576 | vosStatus = hdd_list_remove_node(&vosMemList, &memStruct->pNode); |
| 577 | spin_unlock(&vosMemList.lock); |
| 578 | |
| 579 | if(VOS_STATUS_SUCCESS == vosStatus) |
| 580 | { |
| 581 | if(0 == vos_mem_compare(memStruct->header, &WLAN_MEM_HEADER[0], sizeof(WLAN_MEM_HEADER)) ) |
| 582 | { |
| 583 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 584 | "Memory Header is corrupted. MemInfo: Filename %s, LineNum %d", |
| 585 | memStruct->fileName, (int)memStruct->lineNum); |
| 586 | } |
| 587 | if(0 == vos_mem_compare( (v_U8_t*)ptr + memStruct->size, &WLAN_MEM_TAIL[0], sizeof(WLAN_MEM_TAIL ) ) ) |
| 588 | { |
| 589 | VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL, |
| 590 | "Memory Trailer is corrupted. MemInfo: Filename %s, LineNum %d", |
| 591 | memStruct->fileName, (int)memStruct->lineNum); |
| 592 | } |
| 593 | kfree((v_VOID_t*)memStruct); |
| 594 | } |
| 595 | } |
Arif Hussain | d521891 | 2013-12-05 01:10:55 -0800 | [diff] [blame] | 596 | else |
| 597 | kfree(ptr); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 598 | } |
| 599 | #else |
| 600 | v_VOID_t* vos_mem_dma_malloc( v_SIZE_t size ) |
| 601 | { |
| 602 | if (in_interrupt()) |
| 603 | { |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 604 | 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] | 605 | return NULL; |
| 606 | } |
| 607 | return kmalloc(size, GFP_KERNEL); |
| 608 | } |
| 609 | |
| 610 | /*---------------------------------------------------------------------------- |
| 611 | |
| 612 | \brief vos_mem_dma_free() - vOSS DMA Free Memory |
| 613 | |
| 614 | This function will free special DMA friendly memory pointed to by 'ptr'. |
| 615 | |
| 616 | On WM, there is nothing special about the memory being free'd. SDHC will |
| 617 | take care of free'ing the DMA friendly buffer |
| 618 | |
| 619 | \param ptr - pointer to the starting address of the memory to be |
| 620 | free'd. |
| 621 | |
| 622 | \return Nothing |
| 623 | |
| 624 | \sa |
| 625 | |
| 626 | --------------------------------------------------------------------------*/ |
| 627 | v_VOID_t vos_mem_dma_free( v_VOID_t *ptr ) |
| 628 | { |
| 629 | if (ptr == NULL) |
| 630 | return; |
| 631 | kfree(ptr); |
| 632 | } |
| 633 | #endif |