Katish Paran | 244514d | 2013-08-01 18:39:31 -0700 | [diff] [blame^] | 1 | /* Copyright (c) 2008-2014, The Linux Foundation. All rights reserved. |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/mempool.h> |
| 17 | #include <linux/mutex.h> |
| 18 | #include <asm/atomic.h> |
| 19 | #include "diagchar.h" |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 20 | #include "diagfwd_bridge.h" |
| 21 | #include "diagfwd_hsic.h" |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 22 | |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 23 | mempool_t *diag_pools_array[NUM_MEMORY_POOLS]; |
| 24 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 25 | void *diagmem_alloc(struct diagchar_dev *driver, int size, int pool_type) |
| 26 | { |
| 27 | void *buf = NULL; |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 28 | unsigned long flags; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 29 | int index; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 30 | |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 31 | spin_lock_irqsave(&driver->diag_mem_lock, flags); |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 32 | index = 0; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 33 | if (pool_type == POOL_TYPE_COPY) { |
| 34 | if (driver->diagpool) { |
Ravi Aravamudhan | d995a7f | 2013-07-03 13:06:15 -0700 | [diff] [blame] | 35 | if ((driver->count < driver->poolsize) && |
| 36 | (size <= driver->itemsize)) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 37 | atomic_add(1, (atomic_t *)&driver->count); |
| 38 | buf = mempool_alloc(driver->diagpool, |
| 39 | GFP_ATOMIC); |
| 40 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 41 | } |
| 42 | } else if (pool_type == POOL_TYPE_HDLC) { |
| 43 | if (driver->diag_hdlc_pool) { |
Ravi Aravamudhan | d995a7f | 2013-07-03 13:06:15 -0700 | [diff] [blame] | 44 | if ((driver->count_hdlc_pool < driver->poolsize_hdlc) && |
| 45 | (size <= driver->itemsize_hdlc)) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 46 | atomic_add(1, |
| 47 | (atomic_t *)&driver->count_hdlc_pool); |
| 48 | buf = mempool_alloc(driver->diag_hdlc_pool, |
| 49 | GFP_ATOMIC); |
| 50 | } |
| 51 | } |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 52 | } else if (pool_type == POOL_TYPE_USER) { |
| 53 | if (driver->diag_user_pool) { |
Ravi Aravamudhan | d995a7f | 2013-07-03 13:06:15 -0700 | [diff] [blame] | 54 | if ((driver->count_user_pool < driver->poolsize_user) && |
| 55 | (size <= driver->itemsize_user)) { |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 56 | atomic_add(1, |
| 57 | (atomic_t *)&driver->count_user_pool); |
| 58 | buf = mempool_alloc(driver->diag_user_pool, |
| 59 | GFP_ATOMIC); |
| 60 | } |
| 61 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 62 | } else if (pool_type == POOL_TYPE_WRITE_STRUCT) { |
| 63 | if (driver->diag_write_struct_pool) { |
Ravi Aravamudhan | d995a7f | 2013-07-03 13:06:15 -0700 | [diff] [blame] | 64 | if ((driver->count_write_struct_pool < |
| 65 | driver->poolsize_write_struct) && |
| 66 | (size <= driver->itemsize_write_struct)) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 67 | atomic_add(1, |
| 68 | (atomic_t *)&driver->count_write_struct_pool); |
| 69 | buf = mempool_alloc( |
| 70 | driver->diag_write_struct_pool, GFP_ATOMIC); |
| 71 | } |
| 72 | } |
Katish Paran | 244514d | 2013-08-01 18:39:31 -0700 | [diff] [blame^] | 73 | } else if (pool_type == POOL_TYPE_DCI) { |
| 74 | if (driver->diag_dci_pool) { |
| 75 | if ((driver->count_dci_pool < driver->poolsize_dci) && |
| 76 | (size <= driver->itemsize_dci)) { |
| 77 | atomic_add(1, |
| 78 | (atomic_t *)&driver->count_dci_pool); |
| 79 | buf = mempool_alloc(driver->diag_dci_pool, |
| 80 | GFP_ATOMIC); |
| 81 | } |
| 82 | } |
Shalabh Jain | 737fca7 | 2012-11-14 21:53:43 -0800 | [diff] [blame] | 83 | #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 84 | } else if (pool_type == POOL_TYPE_HSIC || |
| 85 | pool_type == POOL_TYPE_HSIC_2) { |
| 86 | index = pool_type - POOL_TYPE_HSIC; |
| 87 | if (diag_hsic[index].diag_hsic_pool) { |
Ravi Aravamudhan | d995a7f | 2013-07-03 13:06:15 -0700 | [diff] [blame] | 88 | if ((diag_hsic[index].count_hsic_pool < |
| 89 | diag_hsic[index].poolsize_hsic) && |
| 90 | (size <= diag_hsic[index].itemsize_hsic)) { |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 91 | atomic_add(1, (atomic_t *) |
| 92 | &diag_hsic[index].count_hsic_pool); |
| 93 | buf = mempool_alloc( |
| 94 | diag_hsic[index].diag_hsic_pool, |
| 95 | GFP_ATOMIC); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 96 | } |
| 97 | } |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 98 | } else if (pool_type == POOL_TYPE_HSIC_WRITE || |
| 99 | pool_type == POOL_TYPE_HSIC_2_WRITE) { |
| 100 | index = pool_type - POOL_TYPE_HSIC_WRITE; |
| 101 | if (diag_hsic[index].diag_hsic_write_pool) { |
| 102 | if (diag_hsic[index].count_hsic_write_pool < |
Ravi Aravamudhan | d995a7f | 2013-07-03 13:06:15 -0700 | [diff] [blame] | 103 | diag_hsic[index].poolsize_hsic_write && |
| 104 | (size <= diag_hsic[index].itemsize_hsic_write)) { |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 105 | atomic_add(1, (atomic_t *) |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 106 | &diag_hsic[index]. |
| 107 | count_hsic_write_pool); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 108 | buf = mempool_alloc( |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 109 | diag_hsic[index].diag_hsic_write_pool, |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 110 | GFP_ATOMIC); |
| 111 | } |
| 112 | } |
| 113 | #endif |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 114 | } |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 115 | spin_unlock_irqrestore(&driver->diag_mem_lock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 116 | return buf; |
| 117 | } |
| 118 | |
| 119 | void diagmem_exit(struct diagchar_dev *driver, int pool_type) |
| 120 | { |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 121 | int index; |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 122 | unsigned long flags; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 123 | index = 0; |
| 124 | |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 125 | spin_lock_irqsave(&driver->diag_mem_lock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 126 | if (driver->diagpool) { |
| 127 | if (driver->count == 0 && driver->ref_count == 0) { |
| 128 | mempool_destroy(driver->diagpool); |
| 129 | driver->diagpool = NULL; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 130 | } else if (driver->ref_count == 0 && pool_type == |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 131 | POOL_TYPE_ALL) { |
| 132 | pr_err("diag: Unable to destroy COPY mempool"); |
| 133 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 134 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 135 | |
| 136 | if (driver->diag_hdlc_pool) { |
| 137 | if (driver->count_hdlc_pool == 0 && driver->ref_count == 0) { |
| 138 | mempool_destroy(driver->diag_hdlc_pool); |
| 139 | driver->diag_hdlc_pool = NULL; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 140 | } else if (driver->ref_count == 0 && pool_type == |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 141 | POOL_TYPE_ALL) { |
| 142 | pr_err("diag: Unable to destroy HDLC mempool"); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | if (driver->diag_user_pool) { |
| 147 | if (driver->count_user_pool == 0 && driver->ref_count == 0) { |
| 148 | mempool_destroy(driver->diag_user_pool); |
| 149 | driver->diag_user_pool = NULL; |
| 150 | } else if (driver->ref_count == 0 && pool_type == |
| 151 | POOL_TYPE_ALL) { |
| 152 | pr_err("diag: Unable to destroy USER mempool"); |
| 153 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 154 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 155 | |
| 156 | if (driver->diag_write_struct_pool) { |
| 157 | /* Free up struct pool ONLY if there are no outstanding |
| 158 | transactions(aggregation buffer) with USB */ |
| 159 | if (driver->count_write_struct_pool == 0 && |
| 160 | driver->count_hdlc_pool == 0 && driver->ref_count == 0) { |
| 161 | mempool_destroy(driver->diag_write_struct_pool); |
| 162 | driver->diag_write_struct_pool = NULL; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 163 | } else if (driver->ref_count == 0 && pool_type == |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 164 | POOL_TYPE_ALL) { |
| 165 | pr_err("diag: Unable to destroy STRUCT mempool"); |
| 166 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 167 | } |
Katish Paran | 244514d | 2013-08-01 18:39:31 -0700 | [diff] [blame^] | 168 | |
| 169 | if (driver->diag_dci_pool) { |
| 170 | if (driver->count_dci_pool == 0 && driver->ref_count == 0) { |
| 171 | mempool_destroy(driver->diag_dci_pool); |
| 172 | driver->diag_dci_pool = NULL; |
| 173 | } else if (driver->ref_count == 0 && pool_type == |
| 174 | POOL_TYPE_ALL) { |
| 175 | pr_err("diag: Unable to destroy DCI mempool"); |
| 176 | } |
| 177 | } |
Shalabh Jain | 737fca7 | 2012-11-14 21:53:43 -0800 | [diff] [blame] | 178 | #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 179 | for (index = 0; index < MAX_HSIC_CH; index++) { |
| 180 | if (diag_hsic[index].diag_hsic_pool && |
| 181 | (diag_hsic[index].hsic_inited == 0)) { |
| 182 | if (diag_hsic[index].count_hsic_pool == 0) { |
Ravi Aravamudhan | 66b0293 | 2013-06-26 16:15:21 -0700 | [diff] [blame] | 183 | mempool_destroy( |
| 184 | diag_hsic[index].diag_hsic_pool); |
| 185 | diag_hsic[index].diag_hsic_pool = NULL; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 186 | } else if (pool_type == POOL_TYPE_ALL) |
| 187 | pr_err("Unable to destroy HDLC mempool for ch %d" |
| 188 | , index); |
| 189 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 190 | |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 191 | if (diag_hsic[index].diag_hsic_write_pool && |
Dixon Peterson | 175f1c1 | 2013-02-08 18:51:42 -0800 | [diff] [blame] | 192 | (diag_hsic[index].hsic_inited == 0)) { |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 193 | /* |
| 194 | * Free up struct pool ONLY if there are no outstanding |
| 195 | * transactions(aggregation buffer) with USB |
| 196 | */ |
| 197 | if (diag_hsic[index].count_hsic_write_pool == 0 && |
| 198 | diag_hsic[index].count_hsic_pool == 0) { |
| 199 | mempool_destroy( |
| 200 | diag_hsic[index].diag_hsic_write_pool); |
| 201 | diag_hsic[index].diag_hsic_write_pool = NULL; |
| 202 | } else if (pool_type == POOL_TYPE_ALL) |
| 203 | pr_err("Unable to destroy HSIC USB struct mempool for ch %d" |
| 204 | , index); |
| 205 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 206 | } |
| 207 | #endif |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 208 | spin_unlock_irqrestore(&driver->diag_mem_lock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | void diagmem_free(struct diagchar_dev *driver, void *buf, int pool_type) |
| 212 | { |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 213 | int index; |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 214 | unsigned long flags; |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 215 | |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 216 | if (!buf) |
| 217 | return; |
| 218 | |
| 219 | spin_lock_irqsave(&driver->diag_mem_lock, flags); |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 220 | index = 0; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 221 | if (pool_type == POOL_TYPE_COPY) { |
| 222 | if (driver->diagpool != NULL && driver->count > 0) { |
| 223 | mempool_free(buf, driver->diagpool); |
| 224 | atomic_add(-1, (atomic_t *)&driver->count); |
| 225 | } else |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 226 | pr_err("diag: Attempt to free up DIAG driver mempool memory which is already free %d", |
| 227 | driver->count); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 228 | } else if (pool_type == POOL_TYPE_HDLC) { |
| 229 | if (driver->diag_hdlc_pool != NULL && |
| 230 | driver->count_hdlc_pool > 0) { |
| 231 | mempool_free(buf, driver->diag_hdlc_pool); |
| 232 | atomic_add(-1, (atomic_t *)&driver->count_hdlc_pool); |
| 233 | } else |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 234 | pr_err("diag: Attempt to free up DIAG driver HDLC mempool which is already free %d ", |
| 235 | driver->count_hdlc_pool); |
| 236 | } else if (pool_type == POOL_TYPE_USER) { |
| 237 | if (driver->diag_user_pool != NULL && |
| 238 | driver->count_user_pool > 0) { |
| 239 | mempool_free(buf, driver->diag_user_pool); |
| 240 | atomic_add(-1, (atomic_t *)&driver->count_user_pool); |
| 241 | } else { |
| 242 | pr_err("diag: Attempt to free up DIAG driver USER mempool which is already free %d ", |
| 243 | driver->count_user_pool); |
| 244 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 245 | } else if (pool_type == POOL_TYPE_WRITE_STRUCT) { |
| 246 | if (driver->diag_write_struct_pool != NULL && |
| 247 | driver->count_write_struct_pool > 0) { |
| 248 | mempool_free(buf, driver->diag_write_struct_pool); |
| 249 | atomic_add(-1, |
| 250 | (atomic_t *)&driver->count_write_struct_pool); |
| 251 | } else |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 252 | pr_err("diag: Attempt to free up DIAG driver USB structure mempool which is already free %d ", |
| 253 | driver->count_write_struct_pool); |
Katish Paran | 244514d | 2013-08-01 18:39:31 -0700 | [diff] [blame^] | 254 | } else if (pool_type == POOL_TYPE_DCI) { |
| 255 | if (driver->diag_dci_pool != NULL && |
| 256 | driver->count_dci_pool > 0) { |
| 257 | mempool_free(buf, driver->diag_dci_pool); |
| 258 | atomic_add(-1, |
| 259 | (atomic_t *)&driver->count_dci_pool); |
| 260 | } else |
| 261 | pr_err("diag: Attempt to free up DIAG driver DCI mempool which is already free %d ", |
| 262 | driver->count_dci_pool); |
Shalabh Jain | 737fca7 | 2012-11-14 21:53:43 -0800 | [diff] [blame] | 263 | #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 264 | } else if (pool_type == POOL_TYPE_HSIC || |
| 265 | pool_type == POOL_TYPE_HSIC_2) { |
| 266 | index = pool_type - POOL_TYPE_HSIC; |
| 267 | if (diag_hsic[index].diag_hsic_pool != NULL && |
| 268 | diag_hsic[index].count_hsic_pool > 0) { |
| 269 | mempool_free(buf, diag_hsic[index].diag_hsic_pool); |
| 270 | atomic_add(-1, (atomic_t *) |
| 271 | &diag_hsic[index].count_hsic_pool); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 272 | } else |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 273 | pr_err("diag: Attempt to free up DIAG driver HSIC mempool which is already free %d, ch = %d", |
| 274 | diag_hsic[index].count_hsic_pool, index); |
| 275 | } else if (pool_type == POOL_TYPE_HSIC_WRITE || |
| 276 | pool_type == POOL_TYPE_HSIC_2_WRITE) { |
| 277 | index = pool_type - POOL_TYPE_HSIC_WRITE; |
| 278 | if (diag_hsic[index].diag_hsic_write_pool != NULL && |
| 279 | diag_hsic[index].count_hsic_write_pool > 0) { |
| 280 | mempool_free(buf, |
| 281 | diag_hsic[index].diag_hsic_write_pool); |
| 282 | atomic_add(-1, (atomic_t *) |
| 283 | &diag_hsic[index].count_hsic_write_pool); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 284 | } else |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 285 | pr_err("diag: Attempt to free up DIAG driver HSIC USB structure mempool which is already free %d, ch = %d", |
| 286 | driver->count_write_struct_pool, index); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 287 | #endif |
| 288 | } else { |
| 289 | pr_err("diag: In %s, unknown pool type: %d\n", |
| 290 | __func__, pool_type); |
| 291 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 292 | } |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 293 | spin_unlock_irqrestore(&driver->diag_mem_lock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 294 | diagmem_exit(driver, pool_type); |
| 295 | } |
| 296 | |
| 297 | void diagmem_init(struct diagchar_dev *driver) |
| 298 | { |
Ravi Aravamudhan | 850b4c9 | 2013-07-03 17:57:52 -0700 | [diff] [blame] | 299 | spin_lock_init(&driver->diag_mem_lock); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 300 | |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 301 | if (driver->count == 0) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 302 | driver->diagpool = mempool_create_kmalloc_pool( |
| 303 | driver->poolsize, driver->itemsize); |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 304 | diag_pools_array[POOL_COPY_IDX] = driver->diagpool; |
| 305 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 306 | |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 307 | if (driver->count_hdlc_pool == 0) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 308 | driver->diag_hdlc_pool = mempool_create_kmalloc_pool( |
| 309 | driver->poolsize_hdlc, driver->itemsize_hdlc); |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 310 | diag_pools_array[POOL_HDLC_IDX] = driver->diag_hdlc_pool; |
| 311 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 312 | |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 313 | if (driver->count_user_pool == 0) { |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 314 | driver->diag_user_pool = mempool_create_kmalloc_pool( |
| 315 | driver->poolsize_user, driver->itemsize_user); |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 316 | diag_pools_array[POOL_USER_IDX] = driver->diag_user_pool; |
| 317 | } |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 318 | |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 319 | if (driver->count_write_struct_pool == 0) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 320 | driver->diag_write_struct_pool = mempool_create_kmalloc_pool( |
| 321 | driver->poolsize_write_struct, driver->itemsize_write_struct); |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 322 | diag_pools_array[POOL_WRITE_STRUCT_IDX] = |
| 323 | driver->diag_write_struct_pool; |
| 324 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 325 | |
Katish Paran | 244514d | 2013-08-01 18:39:31 -0700 | [diff] [blame^] | 326 | if (driver->count_dci_pool == 0) { |
| 327 | driver->diag_dci_pool = mempool_create_kmalloc_pool( |
| 328 | driver->poolsize_dci, driver->itemsize_dci); |
| 329 | diag_pools_array[POOL_DCI_IDX] = driver->diag_dci_pool; |
| 330 | } |
| 331 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 332 | if (!driver->diagpool) |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 333 | pr_err("diag: Cannot allocate diag mempool\n"); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 334 | |
| 335 | if (!driver->diag_hdlc_pool) |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 336 | pr_err("diag: Cannot allocate diag HDLC mempool\n"); |
| 337 | |
| 338 | if (!driver->diag_user_pool) |
| 339 | pr_err("diag: Cannot allocate diag USER mempool\n"); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 340 | |
| 341 | if (!driver->diag_write_struct_pool) |
Dixon Peterson | 6dba757 | 2013-04-12 18:45:16 -0700 | [diff] [blame] | 342 | pr_err("diag: Cannot allocate diag USB struct mempool\n"); |
Katish Paran | 244514d | 2013-08-01 18:39:31 -0700 | [diff] [blame^] | 343 | |
| 344 | if (!driver->diag_dci_pool) |
| 345 | pr_err("diag: Cannot allocate diag DCI mempool\n"); |
| 346 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 347 | } |
| 348 | |
Shalabh Jain | 737fca7 | 2012-11-14 21:53:43 -0800 | [diff] [blame] | 349 | #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 350 | void diagmem_hsic_init(int index) |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 351 | { |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 352 | if (index < 0 || index >= MAX_HSIC_CH) { |
| 353 | pr_err("diag: Invalid hsic index in %s\n", __func__); |
| 354 | return; |
| 355 | } |
| 356 | |
| 357 | if (diag_hsic[index].count_hsic_pool == 0) { |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 358 | diag_hsic[index].diag_hsic_pool = mempool_create_kmalloc_pool( |
| 359 | diag_hsic[index].poolsize_hsic, |
| 360 | diag_hsic[index].itemsize_hsic); |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 361 | diag_pools_array[POOL_HSIC_IDX + index] = |
| 362 | diag_hsic[index].diag_hsic_pool; |
| 363 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 364 | |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 365 | if (diag_hsic[index].count_hsic_write_pool == 0) { |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 366 | diag_hsic[index].diag_hsic_write_pool = |
| 367 | mempool_create_kmalloc_pool( |
| 368 | diag_hsic[index].poolsize_hsic_write, |
| 369 | diag_hsic[index].itemsize_hsic_write); |
Ravi Aravamudhan | 46df7d2 | 2013-06-12 11:57:07 -0700 | [diff] [blame] | 370 | diag_pools_array[POOL_HSIC_WRITE_IDX + index] = |
| 371 | diag_hsic[index].diag_hsic_write_pool; |
| 372 | } |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 373 | |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 374 | if (!diag_hsic[index].diag_hsic_pool) |
| 375 | pr_err("Cannot allocate diag HSIC mempool for ch %d\n", index); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 376 | |
Shalabh Jain | b0037c0 | 2013-01-18 12:47:40 -0800 | [diff] [blame] | 377 | if (!diag_hsic[index].diag_hsic_write_pool) |
| 378 | pr_err("Cannot allocate diag HSIC struct mempool for ch %d\n", |
| 379 | index); |
Dixon Peterson | 938f860 | 2012-08-17 20:02:57 -0700 | [diff] [blame] | 380 | |
| 381 | } |
| 382 | #endif |
| 383 | |