Jeff Hugo | 4b03b2a | 2013-04-10 17:04:09 -0600 | [diff] [blame] | 1 | /* Copyright (c) 2008-2013, 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 | * Shared memory logging implementation. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/uaccess.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/fs.h> |
| 21 | #include <linux/miscdevice.h> |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/errno.h> |
| 24 | #include <linux/jiffies.h> |
| 25 | #include <linux/remote_spinlock.h> |
| 26 | #include <linux/debugfs.h> |
| 27 | #include <linux/io.h> |
| 28 | #include <linux/string.h> |
| 29 | #include <linux/sched.h> |
| 30 | #include <linux/wait.h> |
| 31 | #include <linux/delay.h> |
| 32 | |
| 33 | #include <mach/msm_iomap.h> |
| 34 | #include <mach/smem_log.h> |
Jeff Hugo | 5ba15fe | 2013-05-06 14:24:24 -0600 | [diff] [blame] | 35 | #include <mach/msm_smem.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 36 | |
Jeff Hugo | 4b03b2a | 2013-04-10 17:04:09 -0600 | [diff] [blame] | 37 | #include <asm/arch_timer.h> |
| 38 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 39 | #include "smd_private.h" |
| 40 | #include "smd_rpc_sym.h" |
| 41 | #include "modem_notifier.h" |
Jeff Hugo | 7cc06b1 | 2013-06-17 16:13:18 -0600 | [diff] [blame] | 42 | #include "smem_private.h" |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 43 | |
| 44 | #define DEBUG |
| 45 | #undef DEBUG |
| 46 | |
| 47 | #ifdef DEBUG |
| 48 | #define D_DUMP_BUFFER(prestr, cnt, buf) \ |
| 49 | do { \ |
| 50 | int i; \ |
| 51 | printk(KERN_ERR "%s", prestr); \ |
| 52 | for (i = 0; i < cnt; i++) \ |
| 53 | printk(KERN_ERR "%.2x", buf[i]); \ |
| 54 | printk(KERN_ERR "\n"); \ |
| 55 | } while (0) |
| 56 | #else |
| 57 | #define D_DUMP_BUFFER(prestr, cnt, buf) |
| 58 | #endif |
| 59 | |
| 60 | #ifdef DEBUG |
| 61 | #define D(x...) printk(x) |
| 62 | #else |
| 63 | #define D(x...) do {} while (0) |
| 64 | #endif |
| 65 | |
Eric Holmberg | b9bfe29 | 2012-03-29 13:23:01 -0600 | [diff] [blame] | 66 | /* |
| 67 | * Legacy targets use the 32KHz hardware timer and new targets will use |
| 68 | * the scheduler timer scaled to a 32KHz tick count. |
| 69 | * |
| 70 | * As testing on legacy targets permits, we will move them to use |
| 71 | * sched_clock() and eventually remove the conditiona compilation. |
| 72 | */ |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 73 | #if defined(CONFIG_ARCH_MSM7X30) || defined(CONFIG_ARCH_MSM8X60) \ |
| 74 | || defined(CONFIG_ARCH_FSM9XXX) |
| 75 | #define TIMESTAMP_ADDR (MSM_TMR_BASE + 0x08) |
Eric Holmberg | b9bfe29 | 2012-03-29 13:23:01 -0600 | [diff] [blame] | 76 | #elif defined(CONFIG_ARCH_APQ8064) || defined(CONFIG_ARCH_MSM7X01A) || \ |
| 77 | defined(CONFIG_ARCH_MSM7x25) || defined(CONFIG_ARCH_MSM7X27) || \ |
| 78 | defined(CONFIG_ARCH_MSM7X27A) || defined(CONFIG_ARCH_MSM8960) || \ |
| 79 | defined(CONFIG_ARCH_MSM9615) || defined(CONFIG_ARCH_QSD8X50) |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 80 | #define TIMESTAMP_ADDR (MSM_TMR_BASE + 0x04) |
| 81 | #endif |
| 82 | |
| 83 | struct smem_log_item { |
| 84 | uint32_t identifier; |
| 85 | uint32_t timetick; |
| 86 | uint32_t data1; |
| 87 | uint32_t data2; |
| 88 | uint32_t data3; |
| 89 | }; |
| 90 | |
| 91 | #define SMEM_LOG_NUM_ENTRIES 2000 |
| 92 | #define SMEM_LOG_EVENTS_SIZE (sizeof(struct smem_log_item) * \ |
| 93 | SMEM_LOG_NUM_ENTRIES) |
| 94 | |
| 95 | #define SMEM_LOG_NUM_STATIC_ENTRIES 150 |
| 96 | #define SMEM_STATIC_LOG_EVENTS_SIZE (sizeof(struct smem_log_item) * \ |
| 97 | SMEM_LOG_NUM_STATIC_ENTRIES) |
| 98 | |
| 99 | #define SMEM_LOG_NUM_POWER_ENTRIES 2000 |
| 100 | #define SMEM_POWER_LOG_EVENTS_SIZE (sizeof(struct smem_log_item) * \ |
| 101 | SMEM_LOG_NUM_POWER_ENTRIES) |
| 102 | |
| 103 | #define SMEM_SPINLOCK_SMEM_LOG "S:2" |
| 104 | #define SMEM_SPINLOCK_STATIC_LOG "S:5" |
| 105 | /* POWER shares with SMEM_SPINLOCK_SMEM_LOG */ |
| 106 | |
| 107 | static remote_spinlock_t remote_spinlock; |
| 108 | static remote_spinlock_t remote_spinlock_static; |
| 109 | static uint32_t smem_log_enable; |
| 110 | static int smem_log_initialized; |
| 111 | |
| 112 | module_param_named(log_enable, smem_log_enable, int, |
| 113 | S_IRUGO | S_IWUSR | S_IWGRP); |
| 114 | |
| 115 | |
| 116 | struct smem_log_inst { |
| 117 | int which_log; |
| 118 | struct smem_log_item __iomem *events; |
| 119 | uint32_t __iomem *idx; |
| 120 | uint32_t num; |
| 121 | uint32_t read_idx; |
| 122 | uint32_t last_read_avail; |
| 123 | wait_queue_head_t read_wait; |
| 124 | remote_spinlock_t *remote_spinlock; |
| 125 | }; |
| 126 | |
| 127 | enum smem_logs { |
| 128 | GEN = 0, |
| 129 | STA, |
| 130 | POW, |
| 131 | NUM |
| 132 | }; |
| 133 | |
| 134 | static struct smem_log_inst inst[NUM]; |
| 135 | |
| 136 | #if defined(CONFIG_DEBUG_FS) |
| 137 | |
| 138 | #define HSIZE 13 |
| 139 | |
| 140 | struct sym { |
| 141 | uint32_t val; |
| 142 | char *str; |
| 143 | struct hlist_node node; |
| 144 | }; |
| 145 | |
| 146 | struct sym id_syms[] = { |
| 147 | { SMEM_LOG_PROC_ID_MODEM, "MODM" }, |
| 148 | { SMEM_LOG_PROC_ID_Q6, "QDSP" }, |
| 149 | { SMEM_LOG_PROC_ID_APPS, "APPS" }, |
Eric Holmberg | 20b4066 | 2011-11-21 15:18:34 -0700 | [diff] [blame] | 150 | { SMEM_LOG_PROC_ID_WCNSS, "WCNSS" }, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 151 | }; |
| 152 | |
| 153 | struct sym base_syms[] = { |
| 154 | { SMEM_LOG_ONCRPC_EVENT_BASE, "ONCRPC" }, |
| 155 | { SMEM_LOG_SMEM_EVENT_BASE, "SMEM" }, |
| 156 | { SMEM_LOG_TMC_EVENT_BASE, "TMC" }, |
| 157 | { SMEM_LOG_TIMETICK_EVENT_BASE, "TIMETICK" }, |
| 158 | { SMEM_LOG_DEM_EVENT_BASE, "DEM" }, |
| 159 | { SMEM_LOG_ERROR_EVENT_BASE, "ERROR" }, |
| 160 | { SMEM_LOG_DCVS_EVENT_BASE, "DCVS" }, |
| 161 | { SMEM_LOG_SLEEP_EVENT_BASE, "SLEEP" }, |
Zaheerulla Meer | 83e6cbb | 2013-06-19 16:31:17 +0530 | [diff] [blame] | 162 | { SMEM_LOG_RPC_ROUTER_EVENT_BASE, "RPCROUTER" }, |
| 163 | { SMEM_LOG_QMI_CCI_EVENT_BASE, "QCCI" }, |
| 164 | { SMEM_LOG_QMI_CSI_EVENT_BASE, "QCSI" }, |
| 165 | { SMEM_LOG_IPC_ROUTER_EVENT_BASE, "IPCROUTER" }, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 166 | }; |
| 167 | |
| 168 | struct sym event_syms[] = { |
| 169 | #if defined(CONFIG_MSM_N_WAY_SMSM) |
| 170 | { DEM_SMSM_ISR, "SMSM_ISR" }, |
| 171 | { DEM_STATE_CHANGE, "STATE_CHANGE" }, |
| 172 | { DEM_STATE_MACHINE_ENTER, "STATE_MACHINE_ENTER" }, |
| 173 | { DEM_ENTER_SLEEP, "ENTER_SLEEP" }, |
| 174 | { DEM_END_SLEEP, "END_SLEEP" }, |
| 175 | { DEM_SETUP_SLEEP, "SETUP_SLEEP" }, |
| 176 | { DEM_SETUP_POWER_COLLAPSE, "SETUP_POWER_COLLAPSE" }, |
| 177 | { DEM_SETUP_SUSPEND, "SETUP_SUSPEND" }, |
| 178 | { DEM_EARLY_EXIT, "EARLY_EXIT" }, |
| 179 | { DEM_WAKEUP_REASON, "WAKEUP_REASON" }, |
| 180 | { DEM_DETECT_WAKEUP, "DETECT_WAKEUP" }, |
| 181 | { DEM_DETECT_RESET, "DETECT_RESET" }, |
| 182 | { DEM_DETECT_SLEEPEXIT, "DETECT_SLEEPEXIT" }, |
| 183 | { DEM_DETECT_RUN, "DETECT_RUN" }, |
| 184 | { DEM_APPS_SWFI, "APPS_SWFI" }, |
| 185 | { DEM_SEND_WAKEUP, "SEND_WAKEUP" }, |
| 186 | { DEM_ASSERT_OKTS, "ASSERT_OKTS" }, |
| 187 | { DEM_NEGATE_OKTS, "NEGATE_OKTS" }, |
| 188 | { DEM_PROC_COMM_CMD, "PROC_COMM_CMD" }, |
| 189 | { DEM_REMOVE_PROC_PWR, "REMOVE_PROC_PWR" }, |
| 190 | { DEM_RESTORE_PROC_PWR, "RESTORE_PROC_PWR" }, |
| 191 | { DEM_SMI_CLK_DISABLED, "SMI_CLK_DISABLED" }, |
| 192 | { DEM_SMI_CLK_ENABLED, "SMI_CLK_ENABLED" }, |
| 193 | { DEM_MAO_INTS, "MAO_INTS" }, |
| 194 | { DEM_APPS_WAKEUP_INT, "APPS_WAKEUP_INT" }, |
| 195 | { DEM_PROC_WAKEUP, "PROC_WAKEUP" }, |
| 196 | { DEM_PROC_POWERUP, "PROC_POWERUP" }, |
| 197 | { DEM_TIMER_EXPIRED, "TIMER_EXPIRED" }, |
| 198 | { DEM_SEND_BATTERY_INFO, "SEND_BATTERY_INFO" }, |
| 199 | { DEM_REMOTE_PWR_CB, "REMOTE_PWR_CB" }, |
| 200 | { DEM_TIME_SYNC_START, "TIME_SYNC_START" }, |
| 201 | { DEM_TIME_SYNC_SEND_VALUE, "TIME_SYNC_SEND_VALUE" }, |
| 202 | { DEM_TIME_SYNC_DONE, "TIME_SYNC_DONE" }, |
| 203 | { DEM_TIME_SYNC_REQUEST, "TIME_SYNC_REQUEST" }, |
| 204 | { DEM_TIME_SYNC_POLL, "TIME_SYNC_POLL" }, |
| 205 | { DEM_TIME_SYNC_INIT, "TIME_SYNC_INIT" }, |
| 206 | { DEM_INIT, "INIT" }, |
| 207 | #else |
| 208 | |
| 209 | { DEM_NO_SLEEP, "NO_SLEEP" }, |
| 210 | { DEM_INSUF_TIME, "INSUF_TIME" }, |
| 211 | { DEMAPPS_ENTER_SLEEP, "APPS_ENTER_SLEEP" }, |
| 212 | { DEMAPPS_DETECT_WAKEUP, "APPS_DETECT_WAKEUP" }, |
| 213 | { DEMAPPS_END_APPS_TCXO, "APPS_END_APPS_TCXO" }, |
| 214 | { DEMAPPS_ENTER_SLEEPEXIT, "APPS_ENTER_SLEEPEXIT" }, |
| 215 | { DEMAPPS_END_APPS_SLEEP, "APPS_END_APPS_SLEEP" }, |
| 216 | { DEMAPPS_SETUP_APPS_PWRCLPS, "APPS_SETUP_APPS_PWRCLPS" }, |
| 217 | { DEMAPPS_PWRCLPS_EARLY_EXIT, "APPS_PWRCLPS_EARLY_EXIT" }, |
| 218 | { DEMMOD_SEND_WAKEUP, "MOD_SEND_WAKEUP" }, |
| 219 | { DEMMOD_NO_APPS_VOTE, "MOD_NO_APPS_VOTE" }, |
| 220 | { DEMMOD_NO_TCXO_SLEEP, "MOD_NO_TCXO_SLEEP" }, |
| 221 | { DEMMOD_BT_CLOCK, "MOD_BT_CLOCK" }, |
| 222 | { DEMMOD_UART_CLOCK, "MOD_UART_CLOCK" }, |
| 223 | { DEMMOD_OKTS, "MOD_OKTS" }, |
| 224 | { DEM_SLEEP_INFO, "SLEEP_INFO" }, |
| 225 | { DEMMOD_TCXO_END, "MOD_TCXO_END" }, |
| 226 | { DEMMOD_END_SLEEP_SIG, "MOD_END_SLEEP_SIG" }, |
| 227 | { DEMMOD_SETUP_APPSSLEEP, "MOD_SETUP_APPSSLEEP" }, |
| 228 | { DEMMOD_ENTER_TCXO, "MOD_ENTER_TCXO" }, |
| 229 | { DEMMOD_WAKE_APPS, "MOD_WAKE_APPS" }, |
| 230 | { DEMMOD_POWER_COLLAPSE_APPS, "MOD_POWER_COLLAPSE_APPS" }, |
| 231 | { DEMMOD_RESTORE_APPS_PWR, "MOD_RESTORE_APPS_PWR" }, |
| 232 | { DEMAPPS_ASSERT_OKTS, "APPS_ASSERT_OKTS" }, |
| 233 | { DEMAPPS_RESTART_START_TIMER, "APPS_RESTART_START_TIMER" }, |
| 234 | { DEMAPPS_ENTER_RUN, "APPS_ENTER_RUN" }, |
| 235 | { DEMMOD_MAO_INTS, "MOD_MAO_INTS" }, |
| 236 | { DEMMOD_POWERUP_APPS_CALLED, "MOD_POWERUP_APPS_CALLED" }, |
| 237 | { DEMMOD_PC_TIMER_EXPIRED, "MOD_PC_TIMER_EXPIRED" }, |
| 238 | { DEM_DETECT_SLEEPEXIT, "_DETECT_SLEEPEXIT" }, |
| 239 | { DEM_DETECT_RUN, "DETECT_RUN" }, |
| 240 | { DEM_SET_APPS_TIMER, "SET_APPS_TIMER" }, |
| 241 | { DEM_NEGATE_OKTS, "NEGATE_OKTS" }, |
| 242 | { DEMMOD_APPS_WAKEUP_INT, "MOD_APPS_WAKEUP_INT" }, |
| 243 | { DEMMOD_APPS_SWFI, "MOD_APPS_SWFI" }, |
| 244 | { DEM_SEND_BATTERY_INFO, "SEND_BATTERY_INFO" }, |
| 245 | { DEM_SMI_CLK_DISABLED, "SMI_CLK_DISABLED" }, |
| 246 | { DEM_SMI_CLK_ENABLED, "SMI_CLK_ENABLED" }, |
| 247 | { DEMAPPS_SETUP_APPS_SUSPEND, "APPS_SETUP_APPS_SUSPEND" }, |
| 248 | { DEM_RPC_EARLY_EXIT, "RPC_EARLY_EXIT" }, |
| 249 | { DEMAPPS_WAKEUP_REASON, "APPS_WAKEUP_REASON" }, |
| 250 | { DEM_INIT, "INIT" }, |
| 251 | #endif |
| 252 | { DEMMOD_UMTS_BASE, "MOD_UMTS_BASE" }, |
| 253 | { DEMMOD_GL1_GO_TO_SLEEP, "GL1_GO_TO_SLEEP" }, |
| 254 | { DEMMOD_GL1_SLEEP_START, "GL1_SLEEP_START" }, |
| 255 | { DEMMOD_GL1_AFTER_GSM_CLK_ON, "GL1_AFTER_GSM_CLK_ON" }, |
| 256 | { DEMMOD_GL1_BEFORE_RF_ON, "GL1_BEFORE_RF_ON" }, |
| 257 | { DEMMOD_GL1_AFTER_RF_ON, "GL1_AFTER_RF_ON" }, |
| 258 | { DEMMOD_GL1_FRAME_TICK, "GL1_FRAME_TICK" }, |
| 259 | { DEMMOD_GL1_WCDMA_START, "GL1_WCDMA_START" }, |
| 260 | { DEMMOD_GL1_WCDMA_ENDING, "GL1_WCDMA_ENDING" }, |
| 261 | { DEMMOD_UMTS_NOT_OKTS, "UMTS_NOT_OKTS" }, |
| 262 | { DEMMOD_UMTS_START_TCXO_SHUTDOWN, "UMTS_START_TCXO_SHUTDOWN" }, |
| 263 | { DEMMOD_UMTS_END_TCXO_SHUTDOWN, "UMTS_END_TCXO_SHUTDOWN" }, |
| 264 | { DEMMOD_UMTS_START_ARM_HALT, "UMTS_START_ARM_HALT" }, |
| 265 | { DEMMOD_UMTS_END_ARM_HALT, "UMTS_END_ARM_HALT" }, |
| 266 | { DEMMOD_UMTS_NEXT_WAKEUP_SCLK, "UMTS_NEXT_WAKEUP_SCLK" }, |
| 267 | { TIME_REMOTE_LOG_EVENT_START, "START" }, |
| 268 | { TIME_REMOTE_LOG_EVENT_GOTO_WAIT, |
| 269 | "GOTO_WAIT" }, |
| 270 | { TIME_REMOTE_LOG_EVENT_GOTO_INIT, |
| 271 | "GOTO_INIT" }, |
| 272 | { ERR_ERROR_FATAL, "ERR_ERROR_FATAL" }, |
| 273 | { ERR_ERROR_FATAL_TASK, "ERR_ERROR_FATAL_TASK" }, |
| 274 | { DCVSAPPS_LOG_IDLE, "DCVSAPPS_LOG_IDLE" }, |
| 275 | { DCVSAPPS_LOG_ERR, "DCVSAPPS_LOG_ERR" }, |
| 276 | { DCVSAPPS_LOG_CHG, "DCVSAPPS_LOG_CHG" }, |
| 277 | { DCVSAPPS_LOG_REG, "DCVSAPPS_LOG_REG" }, |
| 278 | { DCVSAPPS_LOG_DEREG, "DCVSAPPS_LOG_DEREG" }, |
| 279 | { SMEM_LOG_EVENT_CB, "CB" }, |
| 280 | { SMEM_LOG_EVENT_START, "START" }, |
| 281 | { SMEM_LOG_EVENT_INIT, "INIT" }, |
| 282 | { SMEM_LOG_EVENT_RUNNING, "RUNNING" }, |
| 283 | { SMEM_LOG_EVENT_STOP, "STOP" }, |
| 284 | { SMEM_LOG_EVENT_RESTART, "RESTART" }, |
| 285 | { SMEM_LOG_EVENT_SS, "SS" }, |
| 286 | { SMEM_LOG_EVENT_READ, "READ" }, |
| 287 | { SMEM_LOG_EVENT_WRITE, "WRITE" }, |
| 288 | { SMEM_LOG_EVENT_SIGS1, "SIGS1" }, |
| 289 | { SMEM_LOG_EVENT_SIGS2, "SIGS2" }, |
| 290 | { SMEM_LOG_EVENT_WRITE_DM, "WRITE_DM" }, |
| 291 | { SMEM_LOG_EVENT_READ_DM, "READ_DM" }, |
| 292 | { SMEM_LOG_EVENT_SKIP_DM, "SKIP_DM" }, |
| 293 | { SMEM_LOG_EVENT_STOP_DM, "STOP_DM" }, |
| 294 | { SMEM_LOG_EVENT_ISR, "ISR" }, |
| 295 | { SMEM_LOG_EVENT_TASK, "TASK" }, |
| 296 | { SMEM_LOG_EVENT_RS, "RS" }, |
| 297 | { ONCRPC_LOG_EVENT_SMD_WAIT, "SMD_WAIT" }, |
| 298 | { ONCRPC_LOG_EVENT_RPC_WAIT, "RPC_WAIT" }, |
| 299 | { ONCRPC_LOG_EVENT_RPC_BOTH_WAIT, "RPC_BOTH_WAIT" }, |
| 300 | { ONCRPC_LOG_EVENT_RPC_INIT, "RPC_INIT" }, |
| 301 | { ONCRPC_LOG_EVENT_RUNNING, "RUNNING" }, |
| 302 | { ONCRPC_LOG_EVENT_APIS_INITED, "APIS_INITED" }, |
| 303 | { ONCRPC_LOG_EVENT_AMSS_RESET, "AMSS_RESET" }, |
| 304 | { ONCRPC_LOG_EVENT_SMD_RESET, "SMD_RESET" }, |
| 305 | { ONCRPC_LOG_EVENT_ONCRPC_RESET, "ONCRPC_RESET" }, |
| 306 | { ONCRPC_LOG_EVENT_CB, "CB" }, |
| 307 | { ONCRPC_LOG_EVENT_STD_CALL, "STD_CALL" }, |
| 308 | { ONCRPC_LOG_EVENT_STD_REPLY, "STD_REPLY" }, |
| 309 | { ONCRPC_LOG_EVENT_STD_CALL_ASYNC, "STD_CALL_ASYNC" }, |
| 310 | { NO_SLEEP_OLD, "NO_SLEEP_OLD" }, |
| 311 | { INSUF_TIME, "INSUF_TIME" }, |
| 312 | { MOD_UART_CLOCK, "MOD_UART_CLOCK" }, |
| 313 | { SLEEP_INFO, "SLEEP_INFO" }, |
| 314 | { MOD_TCXO_END, "MOD_TCXO_END" }, |
| 315 | { MOD_ENTER_TCXO, "MOD_ENTER_TCXO" }, |
| 316 | { NO_SLEEP_NEW, "NO_SLEEP_NEW" }, |
| 317 | { RPC_ROUTER_LOG_EVENT_UNKNOWN, "UNKNOWN" }, |
| 318 | { RPC_ROUTER_LOG_EVENT_MSG_READ, "MSG_READ" }, |
| 319 | { RPC_ROUTER_LOG_EVENT_MSG_WRITTEN, "MSG_WRITTEN" }, |
| 320 | { RPC_ROUTER_LOG_EVENT_MSG_CFM_REQ, "MSG_CFM_REQ" }, |
| 321 | { RPC_ROUTER_LOG_EVENT_MSG_CFM_SNT, "MSG_CFM_SNT" }, |
| 322 | { RPC_ROUTER_LOG_EVENT_MID_READ, "MID_READ" }, |
| 323 | { RPC_ROUTER_LOG_EVENT_MID_WRITTEN, "MID_WRITTEN" }, |
| 324 | { RPC_ROUTER_LOG_EVENT_MID_CFM_REQ, "MID_CFM_REQ" }, |
| 325 | }; |
| 326 | |
| 327 | struct sym wakeup_syms[] = { |
| 328 | { 0x00000040, "OTHER" }, |
| 329 | { 0x00000020, "RESET" }, |
| 330 | { 0x00000010, "ALARM" }, |
| 331 | { 0x00000008, "TIMER" }, |
| 332 | { 0x00000004, "GPIO" }, |
| 333 | { 0x00000002, "INT" }, |
| 334 | { 0x00000001, "RPC" }, |
| 335 | { 0x00000000, "NONE" }, |
| 336 | }; |
| 337 | |
| 338 | struct sym wakeup_int_syms[] = { |
| 339 | { 0, "MDDI_EXT" }, |
| 340 | { 1, "MDDI_PRI" }, |
| 341 | { 2, "MDDI_CLIENT"}, |
| 342 | { 3, "USB_OTG" }, |
| 343 | { 4, "I2CC" }, |
| 344 | { 5, "SDC1_0" }, |
| 345 | { 6, "SDC1_1" }, |
| 346 | { 7, "SDC2_0" }, |
| 347 | { 8, "SDC2_1" }, |
| 348 | { 9, "ADSP_A9A11" }, |
| 349 | { 10, "UART1" }, |
| 350 | { 11, "UART2" }, |
| 351 | { 12, "UART3" }, |
| 352 | { 13, "DP_RX_DATA" }, |
| 353 | { 14, "DP_RX_DATA2" }, |
| 354 | { 15, "DP_RX_DATA3" }, |
| 355 | { 16, "DM_UART" }, |
| 356 | { 17, "DM_DP_RX_DATA" }, |
| 357 | { 18, "KEYSENSE" }, |
| 358 | { 19, "HSSD" }, |
| 359 | { 20, "NAND_WR_ER_DONE" }, |
| 360 | { 21, "NAND_OP_DONE" }, |
| 361 | { 22, "TCHSCRN1" }, |
| 362 | { 23, "TCHSCRN2" }, |
| 363 | { 24, "TCHSCRN_SSBI" }, |
| 364 | { 25, "USB_HS" }, |
| 365 | { 26, "UART2_DM_RX" }, |
| 366 | { 27, "UART2_DM" }, |
| 367 | { 28, "SDC4_1" }, |
| 368 | { 29, "SDC4_0" }, |
| 369 | { 30, "SDC3_1" }, |
| 370 | { 31, "SDC3_0" }, |
| 371 | }; |
| 372 | |
| 373 | struct sym smsm_syms[] = { |
| 374 | { 0x80000000, "UN" }, |
| 375 | { 0x7F000000, "ERR" }, |
| 376 | { 0x00800000, "SMLP" }, |
| 377 | { 0x00400000, "ADWN" }, |
| 378 | { 0x00200000, "PWRS" }, |
| 379 | { 0x00100000, "DWLD" }, |
| 380 | { 0x00080000, "SRBT" }, |
| 381 | { 0x00040000, "SDWN" }, |
| 382 | { 0x00020000, "ARBT" }, |
| 383 | { 0x00010000, "REL" }, |
| 384 | { 0x00008000, "SLE" }, |
| 385 | { 0x00004000, "SLP" }, |
| 386 | { 0x00002000, "WFPI" }, |
| 387 | { 0x00001000, "EEX" }, |
| 388 | { 0x00000800, "TIN" }, |
| 389 | { 0x00000400, "TWT" }, |
| 390 | { 0x00000200, "PWRC" }, |
| 391 | { 0x00000100, "RUN" }, |
| 392 | { 0x00000080, "SA" }, |
| 393 | { 0x00000040, "RES" }, |
| 394 | { 0x00000020, "RIN" }, |
| 395 | { 0x00000010, "RWT" }, |
| 396 | { 0x00000008, "SIN" }, |
| 397 | { 0x00000004, "SWT" }, |
| 398 | { 0x00000002, "OE" }, |
| 399 | { 0x00000001, "I" }, |
| 400 | }; |
| 401 | |
| 402 | /* never reorder */ |
| 403 | struct sym voter_d2_syms[] = { |
| 404 | { 0x00000001, NULL }, |
| 405 | { 0x00000002, NULL }, |
| 406 | { 0x00000004, NULL }, |
| 407 | { 0x00000008, NULL }, |
| 408 | { 0x00000010, NULL }, |
| 409 | { 0x00000020, NULL }, |
| 410 | { 0x00000040, NULL }, |
| 411 | { 0x00000080, NULL }, |
| 412 | { 0x00000100, NULL }, |
| 413 | { 0x00000200, NULL }, |
| 414 | { 0x00000400, NULL }, |
| 415 | { 0x00000800, NULL }, |
| 416 | { 0x00001000, NULL }, |
| 417 | { 0x00002000, NULL }, |
| 418 | { 0x00004000, NULL }, |
| 419 | { 0x00008000, NULL }, |
| 420 | { 0x00010000, NULL }, |
| 421 | { 0x00020000, NULL }, |
| 422 | { 0x00040000, NULL }, |
| 423 | { 0x00080000, NULL }, |
| 424 | { 0x00100000, NULL }, |
| 425 | { 0x00200000, NULL }, |
| 426 | { 0x00400000, NULL }, |
| 427 | { 0x00800000, NULL }, |
| 428 | { 0x01000000, NULL }, |
| 429 | { 0x02000000, NULL }, |
| 430 | { 0x04000000, NULL }, |
| 431 | { 0x08000000, NULL }, |
| 432 | { 0x10000000, NULL }, |
| 433 | { 0x20000000, NULL }, |
| 434 | { 0x40000000, NULL }, |
| 435 | { 0x80000000, NULL }, |
| 436 | }; |
| 437 | |
| 438 | /* never reorder */ |
| 439 | struct sym voter_d3_syms[] = { |
| 440 | { 0x00000001, NULL }, |
| 441 | { 0x00000002, NULL }, |
| 442 | { 0x00000004, NULL }, |
| 443 | { 0x00000008, NULL }, |
| 444 | { 0x00000010, NULL }, |
| 445 | { 0x00000020, NULL }, |
| 446 | { 0x00000040, NULL }, |
| 447 | { 0x00000080, NULL }, |
| 448 | { 0x00000100, NULL }, |
| 449 | { 0x00000200, NULL }, |
| 450 | { 0x00000400, NULL }, |
| 451 | { 0x00000800, NULL }, |
| 452 | { 0x00001000, NULL }, |
| 453 | { 0x00002000, NULL }, |
| 454 | { 0x00004000, NULL }, |
| 455 | { 0x00008000, NULL }, |
| 456 | { 0x00010000, NULL }, |
| 457 | { 0x00020000, NULL }, |
| 458 | { 0x00040000, NULL }, |
| 459 | { 0x00080000, NULL }, |
| 460 | { 0x00100000, NULL }, |
| 461 | { 0x00200000, NULL }, |
| 462 | { 0x00400000, NULL }, |
| 463 | { 0x00800000, NULL }, |
| 464 | { 0x01000000, NULL }, |
| 465 | { 0x02000000, NULL }, |
| 466 | { 0x04000000, NULL }, |
| 467 | { 0x08000000, NULL }, |
| 468 | { 0x10000000, NULL }, |
| 469 | { 0x20000000, NULL }, |
| 470 | { 0x40000000, NULL }, |
| 471 | { 0x80000000, NULL }, |
| 472 | }; |
| 473 | |
| 474 | struct sym dem_state_master_syms[] = { |
| 475 | { 0, "INIT" }, |
| 476 | { 1, "RUN" }, |
| 477 | { 2, "SLEEP_WAIT" }, |
| 478 | { 3, "SLEEP_CONFIRMED" }, |
| 479 | { 4, "SLEEP_EXIT" }, |
| 480 | { 5, "RSA" }, |
| 481 | { 6, "EARLY_EXIT" }, |
| 482 | { 7, "RSA_DELAYED" }, |
| 483 | { 8, "RSA_CHECK_INTS" }, |
| 484 | { 9, "RSA_CONFIRMED" }, |
| 485 | { 10, "RSA_WAKING" }, |
| 486 | { 11, "RSA_RESTORE" }, |
| 487 | { 12, "RESET" }, |
| 488 | }; |
| 489 | |
| 490 | struct sym dem_state_slave_syms[] = { |
| 491 | { 0, "INIT" }, |
| 492 | { 1, "RUN" }, |
| 493 | { 2, "SLEEP_WAIT" }, |
| 494 | { 3, "SLEEP_EXIT" }, |
| 495 | { 4, "SLEEP_RUN_PENDING" }, |
| 496 | { 5, "POWER_COLLAPSE" }, |
| 497 | { 6, "CHECK_INTERRUPTS" }, |
| 498 | { 7, "SWFI" }, |
| 499 | { 8, "WFPI" }, |
| 500 | { 9, "EARLY_EXIT" }, |
| 501 | { 10, "RESET_RECOVER" }, |
| 502 | { 11, "RESET_ACKNOWLEDGE" }, |
| 503 | { 12, "ERROR" }, |
| 504 | }; |
| 505 | |
| 506 | struct sym smsm_entry_type_syms[] = { |
| 507 | { 0, "SMSM_APPS_STATE" }, |
| 508 | { 1, "SMSM_MODEM_STATE" }, |
| 509 | { 2, "SMSM_Q6_STATE" }, |
| 510 | { 3, "SMSM_APPS_DEM" }, |
| 511 | { 4, "SMSM_MODEM_DEM" }, |
| 512 | { 5, "SMSM_Q6_DEM" }, |
| 513 | { 6, "SMSM_POWER_MASTER_DEM" }, |
| 514 | { 7, "SMSM_TIME_MASTER_DEM" }, |
| 515 | }; |
| 516 | |
| 517 | struct sym smsm_state_syms[] = { |
| 518 | { 0x00000001, "INIT" }, |
| 519 | { 0x00000002, "OSENTERED" }, |
| 520 | { 0x00000004, "SMDWAIT" }, |
| 521 | { 0x00000008, "SMDINIT" }, |
| 522 | { 0x00000010, "RPCWAIT" }, |
| 523 | { 0x00000020, "RPCINIT" }, |
| 524 | { 0x00000040, "RESET" }, |
| 525 | { 0x00000080, "RSA" }, |
| 526 | { 0x00000100, "RUN" }, |
| 527 | { 0x00000200, "PWRC" }, |
| 528 | { 0x00000400, "TIMEWAIT" }, |
| 529 | { 0x00000800, "TIMEINIT" }, |
| 530 | { 0x00001000, "PWRC_EARLY_EXIT" }, |
| 531 | { 0x00002000, "WFPI" }, |
| 532 | { 0x00004000, "SLEEP" }, |
| 533 | { 0x00008000, "SLEEPEXIT" }, |
| 534 | { 0x00010000, "OEMSBL_RELEASE" }, |
| 535 | { 0x00020000, "APPS_REBOOT" }, |
| 536 | { 0x00040000, "SYSTEM_POWER_DOWN" }, |
| 537 | { 0x00080000, "SYSTEM_REBOOT" }, |
| 538 | { 0x00100000, "SYSTEM_DOWNLOAD" }, |
| 539 | { 0x00200000, "PWRC_SUSPEND" }, |
| 540 | { 0x00400000, "APPS_SHUTDOWN" }, |
| 541 | { 0x00800000, "SMD_LOOPBACK" }, |
| 542 | { 0x01000000, "RUN_QUIET" }, |
| 543 | { 0x02000000, "MODEM_WAIT" }, |
| 544 | { 0x04000000, "MODEM_BREAK" }, |
| 545 | { 0x08000000, "MODEM_CONTINUE" }, |
| 546 | { 0x80000000, "UNKNOWN" }, |
| 547 | }; |
| 548 | |
| 549 | #define ID_SYM 0 |
| 550 | #define BASE_SYM 1 |
| 551 | #define EVENT_SYM 2 |
| 552 | #define WAKEUP_SYM 3 |
| 553 | #define WAKEUP_INT_SYM 4 |
| 554 | #define SMSM_SYM 5 |
| 555 | #define VOTER_D2_SYM 6 |
| 556 | #define VOTER_D3_SYM 7 |
| 557 | #define DEM_STATE_MASTER_SYM 8 |
| 558 | #define DEM_STATE_SLAVE_SYM 9 |
| 559 | #define SMSM_ENTRY_TYPE_SYM 10 |
| 560 | #define SMSM_STATE_SYM 11 |
| 561 | |
| 562 | static struct sym_tbl { |
| 563 | struct sym *data; |
| 564 | int size; |
| 565 | struct hlist_head hlist[HSIZE]; |
| 566 | } tbl[] = { |
| 567 | { id_syms, ARRAY_SIZE(id_syms) }, |
| 568 | { base_syms, ARRAY_SIZE(base_syms) }, |
| 569 | { event_syms, ARRAY_SIZE(event_syms) }, |
| 570 | { wakeup_syms, ARRAY_SIZE(wakeup_syms) }, |
| 571 | { wakeup_int_syms, ARRAY_SIZE(wakeup_int_syms) }, |
| 572 | { smsm_syms, ARRAY_SIZE(smsm_syms) }, |
| 573 | { voter_d2_syms, ARRAY_SIZE(voter_d2_syms) }, |
| 574 | { voter_d3_syms, ARRAY_SIZE(voter_d3_syms) }, |
| 575 | { dem_state_master_syms, ARRAY_SIZE(dem_state_master_syms) }, |
| 576 | { dem_state_slave_syms, ARRAY_SIZE(dem_state_slave_syms) }, |
| 577 | { smsm_entry_type_syms, ARRAY_SIZE(smsm_entry_type_syms) }, |
| 578 | { smsm_state_syms, ARRAY_SIZE(smsm_state_syms) }, |
| 579 | }; |
| 580 | |
| 581 | static void find_voters(void) |
| 582 | { |
| 583 | void *x, *next; |
| 584 | unsigned size; |
| 585 | int i = 0, j = 0; |
| 586 | |
| 587 | x = smem_get_entry(SMEM_SLEEP_STATIC, &size); |
| 588 | next = x; |
| 589 | while (next && (next < (x + size)) && |
| 590 | ((i + j) < (ARRAY_SIZE(voter_d3_syms) + |
| 591 | ARRAY_SIZE(voter_d2_syms)))) { |
| 592 | |
| 593 | if (i < ARRAY_SIZE(voter_d3_syms)) { |
| 594 | voter_d3_syms[i].str = (char *) next; |
| 595 | i++; |
| 596 | } else if (i >= ARRAY_SIZE(voter_d3_syms) && |
| 597 | j < ARRAY_SIZE(voter_d2_syms)) { |
| 598 | voter_d2_syms[j].str = (char *) next; |
| 599 | j++; |
| 600 | } |
| 601 | |
| 602 | next += 9; |
| 603 | } |
| 604 | } |
| 605 | |
| 606 | #define hash(val) (val % HSIZE) |
| 607 | |
| 608 | static void init_syms(void) |
| 609 | { |
| 610 | int i; |
| 611 | int j; |
| 612 | |
| 613 | for (i = 0; i < ARRAY_SIZE(tbl); ++i) |
| 614 | for (j = 0; j < HSIZE; ++j) |
| 615 | INIT_HLIST_HEAD(&tbl[i].hlist[j]); |
| 616 | |
| 617 | for (i = 0; i < ARRAY_SIZE(tbl); ++i) |
| 618 | for (j = 0; j < tbl[i].size; ++j) { |
| 619 | INIT_HLIST_NODE(&tbl[i].data[j].node); |
| 620 | hlist_add_head(&tbl[i].data[j].node, |
| 621 | &tbl[i].hlist[hash(tbl[i].data[j].val)]); |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | static char *find_sym(uint32_t id, uint32_t val) |
| 626 | { |
| 627 | struct hlist_node *n; |
| 628 | struct sym *s; |
| 629 | |
| 630 | hlist_for_each(n, &tbl[id].hlist[hash(val)]) { |
| 631 | s = hlist_entry(n, struct sym, node); |
| 632 | if (s->val == val) |
| 633 | return s->str; |
| 634 | } |
| 635 | |
| 636 | return 0; |
| 637 | } |
| 638 | |
| 639 | #else |
| 640 | static void init_syms(void) {} |
| 641 | #endif |
| 642 | |
Eric Holmberg | b9bfe29 | 2012-03-29 13:23:01 -0600 | [diff] [blame] | 643 | #ifdef TIMESTAMP_ADDR |
| 644 | /* legacy timestamp using 32.768KHz clock */ |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 645 | static inline unsigned int read_timestamp(void) |
| 646 | { |
| 647 | unsigned int tick = 0; |
| 648 | |
| 649 | /* no barriers necessary as the read value is a dependency for the |
| 650 | * comparison operation so the processor shouldn't be able to |
| 651 | * reorder things |
| 652 | */ |
| 653 | do { |
| 654 | tick = __raw_readl(TIMESTAMP_ADDR); |
| 655 | } while (tick != __raw_readl(TIMESTAMP_ADDR)); |
| 656 | |
| 657 | return tick; |
| 658 | } |
Eric Holmberg | b9bfe29 | 2012-03-29 13:23:01 -0600 | [diff] [blame] | 659 | #else |
| 660 | static inline unsigned int read_timestamp(void) |
| 661 | { |
Jeff Hugo | 4b03b2a | 2013-04-10 17:04:09 -0600 | [diff] [blame] | 662 | return (unsigned int)(arch_counter_get_cntpct()); |
Eric Holmberg | b9bfe29 | 2012-03-29 13:23:01 -0600 | [diff] [blame] | 663 | } |
| 664 | #endif |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 665 | |
| 666 | static void smem_log_event_from_user(struct smem_log_inst *inst, |
| 667 | const char __user *buf, int size, int num) |
| 668 | { |
| 669 | uint32_t idx; |
| 670 | uint32_t next_idx; |
| 671 | unsigned long flags; |
| 672 | uint32_t identifier = 0; |
| 673 | uint32_t timetick = 0; |
| 674 | int first = 1; |
| 675 | int ret; |
| 676 | |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 677 | if (!inst->idx) { |
| 678 | pr_err("%s: invalid write index\n", __func__); |
| 679 | return; |
| 680 | } |
| 681 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 682 | remote_spin_lock_irqsave(inst->remote_spinlock, flags); |
| 683 | |
| 684 | while (num--) { |
| 685 | idx = *inst->idx; |
| 686 | |
| 687 | if (idx < inst->num) { |
| 688 | ret = copy_from_user(&inst->events[idx], |
| 689 | buf, size); |
| 690 | if (ret) { |
| 691 | printk("ERROR %s:%i tried to write " |
| 692 | "%i got ret %i", |
| 693 | __func__, __LINE__, |
| 694 | size, size - ret); |
| 695 | goto out; |
| 696 | } |
| 697 | |
| 698 | if (first) { |
| 699 | identifier = |
| 700 | inst->events[idx]. |
| 701 | identifier; |
| 702 | timetick = read_timestamp(); |
| 703 | first = 0; |
| 704 | } else { |
| 705 | identifier |= SMEM_LOG_CONT; |
| 706 | } |
| 707 | inst->events[idx].identifier = |
| 708 | identifier; |
| 709 | inst->events[idx].timetick = |
| 710 | timetick; |
| 711 | } |
| 712 | |
| 713 | next_idx = idx + 1; |
| 714 | if (next_idx >= inst->num) |
| 715 | next_idx = 0; |
| 716 | *inst->idx = next_idx; |
| 717 | buf += sizeof(struct smem_log_item); |
| 718 | } |
| 719 | |
| 720 | out: |
| 721 | wmb(); |
| 722 | remote_spin_unlock_irqrestore(inst->remote_spinlock, flags); |
| 723 | } |
| 724 | |
| 725 | static void _smem_log_event( |
| 726 | struct smem_log_item __iomem *events, |
| 727 | uint32_t __iomem *_idx, |
| 728 | remote_spinlock_t *lock, |
| 729 | int num, |
| 730 | uint32_t id, uint32_t data1, uint32_t data2, |
| 731 | uint32_t data3) |
| 732 | { |
| 733 | struct smem_log_item item; |
| 734 | uint32_t idx; |
| 735 | uint32_t next_idx; |
| 736 | unsigned long flags; |
| 737 | |
| 738 | item.timetick = read_timestamp(); |
| 739 | item.identifier = id; |
| 740 | item.data1 = data1; |
| 741 | item.data2 = data2; |
| 742 | item.data3 = data3; |
| 743 | |
| 744 | remote_spin_lock_irqsave(lock, flags); |
| 745 | |
| 746 | idx = *_idx; |
| 747 | |
| 748 | if (idx < num) { |
| 749 | memcpy(&events[idx], |
| 750 | &item, sizeof(item)); |
| 751 | } |
| 752 | |
| 753 | next_idx = idx + 1; |
| 754 | if (next_idx >= num) |
| 755 | next_idx = 0; |
| 756 | *_idx = next_idx; |
| 757 | wmb(); |
| 758 | |
| 759 | remote_spin_unlock_irqrestore(lock, flags); |
| 760 | } |
| 761 | |
| 762 | static void _smem_log_event6( |
| 763 | struct smem_log_item __iomem *events, |
| 764 | uint32_t __iomem *_idx, |
| 765 | remote_spinlock_t *lock, |
| 766 | int num, |
| 767 | uint32_t id, uint32_t data1, uint32_t data2, |
| 768 | uint32_t data3, uint32_t data4, uint32_t data5, |
| 769 | uint32_t data6) |
| 770 | { |
| 771 | struct smem_log_item item[2]; |
| 772 | uint32_t idx; |
| 773 | uint32_t next_idx; |
| 774 | unsigned long flags; |
| 775 | |
| 776 | item[0].timetick = read_timestamp(); |
| 777 | item[0].identifier = id; |
| 778 | item[0].data1 = data1; |
| 779 | item[0].data2 = data2; |
| 780 | item[0].data3 = data3; |
| 781 | item[1].identifier = item[0].identifier; |
| 782 | item[1].timetick = item[0].timetick; |
| 783 | item[1].data1 = data4; |
| 784 | item[1].data2 = data5; |
| 785 | item[1].data3 = data6; |
| 786 | |
| 787 | remote_spin_lock_irqsave(lock, flags); |
| 788 | |
| 789 | idx = *_idx; |
| 790 | |
| 791 | /* FIXME: Wrap around */ |
| 792 | if (idx < (num-1)) { |
| 793 | memcpy(&events[idx], |
| 794 | &item, sizeof(item)); |
| 795 | } |
| 796 | |
| 797 | next_idx = idx + 2; |
| 798 | if (next_idx >= num) |
| 799 | next_idx = 0; |
| 800 | *_idx = next_idx; |
| 801 | |
| 802 | wmb(); |
| 803 | remote_spin_unlock_irqrestore(lock, flags); |
| 804 | } |
| 805 | |
| 806 | void smem_log_event(uint32_t id, uint32_t data1, uint32_t data2, |
| 807 | uint32_t data3) |
| 808 | { |
| 809 | if (smem_log_enable) |
| 810 | _smem_log_event(inst[GEN].events, inst[GEN].idx, |
| 811 | inst[GEN].remote_spinlock, |
| 812 | SMEM_LOG_NUM_ENTRIES, id, |
| 813 | data1, data2, data3); |
| 814 | } |
| 815 | |
| 816 | void smem_log_event6(uint32_t id, uint32_t data1, uint32_t data2, |
| 817 | uint32_t data3, uint32_t data4, uint32_t data5, |
| 818 | uint32_t data6) |
| 819 | { |
| 820 | if (smem_log_enable) |
| 821 | _smem_log_event6(inst[GEN].events, inst[GEN].idx, |
| 822 | inst[GEN].remote_spinlock, |
| 823 | SMEM_LOG_NUM_ENTRIES, id, |
| 824 | data1, data2, data3, data4, data5, data6); |
| 825 | } |
| 826 | |
| 827 | void smem_log_event_to_static(uint32_t id, uint32_t data1, uint32_t data2, |
| 828 | uint32_t data3) |
| 829 | { |
| 830 | if (smem_log_enable) |
| 831 | _smem_log_event(inst[STA].events, inst[STA].idx, |
| 832 | inst[STA].remote_spinlock, |
| 833 | SMEM_LOG_NUM_STATIC_ENTRIES, id, |
| 834 | data1, data2, data3); |
| 835 | } |
| 836 | |
| 837 | void smem_log_event6_to_static(uint32_t id, uint32_t data1, uint32_t data2, |
| 838 | uint32_t data3, uint32_t data4, uint32_t data5, |
| 839 | uint32_t data6) |
| 840 | { |
| 841 | if (smem_log_enable) |
| 842 | _smem_log_event6(inst[STA].events, inst[STA].idx, |
| 843 | inst[STA].remote_spinlock, |
| 844 | SMEM_LOG_NUM_STATIC_ENTRIES, id, |
| 845 | data1, data2, data3, data4, data5, data6); |
| 846 | } |
| 847 | |
| 848 | static int _smem_log_init(void) |
| 849 | { |
| 850 | int ret; |
| 851 | |
| 852 | inst[GEN].which_log = GEN; |
| 853 | inst[GEN].events = |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 854 | (struct smem_log_item *)smem_alloc2(SMEM_SMEM_LOG_EVENTS, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 855 | SMEM_LOG_EVENTS_SIZE); |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 856 | inst[GEN].idx = (uint32_t *)smem_alloc2(SMEM_SMEM_LOG_IDX, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 857 | sizeof(uint32_t)); |
| 858 | if (!inst[GEN].events || !inst[GEN].idx) |
| 859 | pr_info("%s: no log or log_idx allocated\n", __func__); |
| 860 | |
| 861 | inst[GEN].num = SMEM_LOG_NUM_ENTRIES; |
| 862 | inst[GEN].read_idx = 0; |
| 863 | inst[GEN].last_read_avail = SMEM_LOG_NUM_ENTRIES; |
| 864 | init_waitqueue_head(&inst[GEN].read_wait); |
| 865 | inst[GEN].remote_spinlock = &remote_spinlock; |
| 866 | |
| 867 | inst[STA].which_log = STA; |
| 868 | inst[STA].events = |
| 869 | (struct smem_log_item *) |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 870 | smem_alloc2(SMEM_SMEM_STATIC_LOG_EVENTS, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 871 | SMEM_STATIC_LOG_EVENTS_SIZE); |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 872 | inst[STA].idx = (uint32_t *)smem_alloc2(SMEM_SMEM_STATIC_LOG_IDX, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 873 | sizeof(uint32_t)); |
| 874 | if (!inst[STA].events || !inst[STA].idx) |
| 875 | pr_info("%s: no static log or log_idx allocated\n", __func__); |
| 876 | |
| 877 | inst[STA].num = SMEM_LOG_NUM_STATIC_ENTRIES; |
| 878 | inst[STA].read_idx = 0; |
| 879 | inst[STA].last_read_avail = SMEM_LOG_NUM_ENTRIES; |
| 880 | init_waitqueue_head(&inst[STA].read_wait); |
| 881 | inst[STA].remote_spinlock = &remote_spinlock_static; |
| 882 | |
| 883 | inst[POW].which_log = POW; |
| 884 | inst[POW].events = |
| 885 | (struct smem_log_item *) |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 886 | smem_alloc2(SMEM_SMEM_LOG_POWER_EVENTS, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 887 | SMEM_POWER_LOG_EVENTS_SIZE); |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 888 | inst[POW].idx = (uint32_t *)smem_alloc2(SMEM_SMEM_LOG_POWER_IDX, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 889 | sizeof(uint32_t)); |
| 890 | if (!inst[POW].events || !inst[POW].idx) |
| 891 | pr_info("%s: no power log or log_idx allocated\n", __func__); |
| 892 | |
| 893 | inst[POW].num = SMEM_LOG_NUM_POWER_ENTRIES; |
| 894 | inst[POW].read_idx = 0; |
| 895 | inst[POW].last_read_avail = SMEM_LOG_NUM_ENTRIES; |
| 896 | init_waitqueue_head(&inst[POW].read_wait); |
| 897 | inst[POW].remote_spinlock = &remote_spinlock; |
| 898 | |
| 899 | ret = remote_spin_lock_init(&remote_spinlock, |
| 900 | SMEM_SPINLOCK_SMEM_LOG); |
| 901 | if (ret) { |
| 902 | mb(); |
| 903 | return ret; |
| 904 | } |
| 905 | |
| 906 | ret = remote_spin_lock_init(&remote_spinlock_static, |
| 907 | SMEM_SPINLOCK_STATIC_LOG); |
| 908 | if (ret) { |
| 909 | mb(); |
| 910 | return ret; |
| 911 | } |
| 912 | |
| 913 | init_syms(); |
| 914 | mb(); |
| 915 | |
| 916 | return 0; |
| 917 | } |
| 918 | |
| 919 | static ssize_t smem_log_read_bin(struct file *fp, char __user *buf, |
| 920 | size_t count, loff_t *pos) |
| 921 | { |
| 922 | int idx; |
| 923 | int orig_idx; |
| 924 | unsigned long flags; |
| 925 | int ret; |
| 926 | int tot_bytes = 0; |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 927 | struct smem_log_inst *local_inst; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 928 | |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 929 | local_inst = fp->private_data; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 930 | |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 931 | if (!local_inst->idx) |
| 932 | return -ENODEV; |
| 933 | |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 934 | remote_spin_lock_irqsave(local_inst->remote_spinlock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 935 | |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 936 | orig_idx = *local_inst->idx; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 937 | idx = orig_idx; |
| 938 | |
| 939 | while (1) { |
| 940 | idx--; |
| 941 | if (idx < 0) |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 942 | idx = local_inst->num - 1; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 943 | if (idx == orig_idx) { |
| 944 | ret = tot_bytes; |
| 945 | break; |
| 946 | } |
| 947 | |
| 948 | if ((tot_bytes + sizeof(struct smem_log_item)) > count) { |
| 949 | ret = tot_bytes; |
| 950 | break; |
| 951 | } |
| 952 | |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 953 | ret = copy_to_user(buf, &local_inst->events[idx], |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 954 | sizeof(struct smem_log_item)); |
| 955 | if (ret) { |
| 956 | ret = -EIO; |
| 957 | break; |
| 958 | } |
| 959 | |
| 960 | tot_bytes += sizeof(struct smem_log_item); |
| 961 | |
| 962 | buf += sizeof(struct smem_log_item); |
| 963 | } |
| 964 | |
Eric Holmberg | cf06531 | 2011-09-09 14:00:40 -0600 | [diff] [blame] | 965 | remote_spin_unlock_irqrestore(local_inst->remote_spinlock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 966 | |
| 967 | return ret; |
| 968 | } |
| 969 | |
| 970 | static ssize_t smem_log_read(struct file *fp, char __user *buf, |
| 971 | size_t count, loff_t *pos) |
| 972 | { |
| 973 | char loc_buf[128]; |
| 974 | int i; |
| 975 | int idx; |
| 976 | int orig_idx; |
| 977 | unsigned long flags; |
| 978 | int ret; |
| 979 | int tot_bytes = 0; |
| 980 | struct smem_log_inst *inst; |
| 981 | |
| 982 | inst = fp->private_data; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 983 | if (!inst->idx) |
| 984 | return -ENODEV; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 985 | |
| 986 | remote_spin_lock_irqsave(inst->remote_spinlock, flags); |
| 987 | |
| 988 | orig_idx = *inst->idx; |
| 989 | idx = orig_idx; |
| 990 | |
| 991 | while (1) { |
| 992 | idx--; |
| 993 | if (idx < 0) |
| 994 | idx = inst->num - 1; |
| 995 | if (idx == orig_idx) { |
| 996 | ret = tot_bytes; |
| 997 | break; |
| 998 | } |
| 999 | |
| 1000 | i = scnprintf(loc_buf, 128, |
| 1001 | "0x%x 0x%x 0x%x 0x%x 0x%x\n", |
| 1002 | inst->events[idx].identifier, |
| 1003 | inst->events[idx].timetick, |
| 1004 | inst->events[idx].data1, |
| 1005 | inst->events[idx].data2, |
| 1006 | inst->events[idx].data3); |
| 1007 | if (i == 0) { |
| 1008 | ret = -EIO; |
| 1009 | break; |
| 1010 | } |
| 1011 | |
| 1012 | if ((tot_bytes + i) > count) { |
| 1013 | ret = tot_bytes; |
| 1014 | break; |
| 1015 | } |
| 1016 | |
| 1017 | tot_bytes += i; |
| 1018 | |
| 1019 | ret = copy_to_user(buf, loc_buf, i); |
| 1020 | if (ret) { |
| 1021 | ret = -EIO; |
| 1022 | break; |
| 1023 | } |
| 1024 | |
| 1025 | buf += i; |
| 1026 | } |
| 1027 | |
| 1028 | remote_spin_unlock_irqrestore(inst->remote_spinlock, flags); |
| 1029 | |
| 1030 | return ret; |
| 1031 | } |
| 1032 | |
| 1033 | static ssize_t smem_log_write_bin(struct file *fp, const char __user *buf, |
| 1034 | size_t count, loff_t *pos) |
| 1035 | { |
| 1036 | if (count < sizeof(struct smem_log_item)) |
| 1037 | return -EINVAL; |
| 1038 | |
| 1039 | if (smem_log_enable) |
| 1040 | smem_log_event_from_user(fp->private_data, buf, |
| 1041 | sizeof(struct smem_log_item), |
| 1042 | count / sizeof(struct smem_log_item)); |
| 1043 | return count; |
| 1044 | } |
| 1045 | |
| 1046 | static ssize_t smem_log_write(struct file *fp, const char __user *buf, |
| 1047 | size_t count, loff_t *pos) |
| 1048 | { |
| 1049 | int ret; |
| 1050 | const char delimiters[] = " ,;"; |
| 1051 | char locbuf[256] = {0}; |
| 1052 | uint32_t val[10] = {0}; |
| 1053 | int vals = 0; |
| 1054 | char *token; |
| 1055 | char *running; |
| 1056 | struct smem_log_inst *inst; |
| 1057 | unsigned long res; |
| 1058 | |
| 1059 | inst = fp->private_data; |
| 1060 | |
| 1061 | count = count > 255 ? 255 : count; |
| 1062 | |
| 1063 | if (!smem_log_enable) |
| 1064 | return count; |
| 1065 | |
| 1066 | locbuf[count] = '\0'; |
| 1067 | |
| 1068 | ret = copy_from_user(locbuf, buf, count); |
| 1069 | if (ret != 0) { |
| 1070 | printk(KERN_ERR "ERROR: %s could not copy %i bytes\n", |
| 1071 | __func__, ret); |
| 1072 | return -EINVAL; |
| 1073 | } |
| 1074 | |
| 1075 | D(KERN_ERR "%s: ", __func__); |
| 1076 | D_DUMP_BUFFER("We got", len, locbuf); |
| 1077 | |
| 1078 | running = locbuf; |
| 1079 | |
| 1080 | token = strsep(&running, delimiters); |
| 1081 | while (token && vals < ARRAY_SIZE(val)) { |
| 1082 | if (*token != '\0') { |
| 1083 | D(KERN_ERR "%s: ", __func__); |
| 1084 | D_DUMP_BUFFER("", strlen(token), token); |
| 1085 | ret = strict_strtoul(token, 0, &res); |
| 1086 | if (ret) { |
| 1087 | printk(KERN_ERR "ERROR: %s:%i got bad char " |
| 1088 | "at strict_strtoul\n", |
| 1089 | __func__, __LINE__-4); |
| 1090 | return -EINVAL; |
| 1091 | } |
| 1092 | val[vals++] = res; |
| 1093 | } |
| 1094 | token = strsep(&running, delimiters); |
| 1095 | } |
| 1096 | |
| 1097 | if (vals > 5) { |
| 1098 | if (inst->which_log == GEN) |
| 1099 | smem_log_event6(val[0], val[2], val[3], val[4], |
| 1100 | val[7], val[8], val[9]); |
| 1101 | else if (inst->which_log == STA) |
| 1102 | smem_log_event6_to_static(val[0], |
| 1103 | val[2], val[3], val[4], |
| 1104 | val[7], val[8], val[9]); |
| 1105 | else |
| 1106 | return -1; |
| 1107 | } else { |
| 1108 | if (inst->which_log == GEN) |
| 1109 | smem_log_event(val[0], val[2], val[3], val[4]); |
| 1110 | else if (inst->which_log == STA) |
| 1111 | smem_log_event_to_static(val[0], |
| 1112 | val[2], val[3], val[4]); |
| 1113 | else |
| 1114 | return -1; |
| 1115 | } |
| 1116 | |
| 1117 | return count; |
| 1118 | } |
| 1119 | |
| 1120 | static int smem_log_open(struct inode *ip, struct file *fp) |
| 1121 | { |
| 1122 | fp->private_data = &inst[GEN]; |
| 1123 | |
| 1124 | return 0; |
| 1125 | } |
| 1126 | |
| 1127 | |
| 1128 | static int smem_log_release(struct inode *ip, struct file *fp) |
| 1129 | { |
| 1130 | return 0; |
| 1131 | } |
| 1132 | |
| 1133 | static long smem_log_ioctl(struct file *fp, unsigned int cmd, |
| 1134 | unsigned long arg); |
| 1135 | |
| 1136 | static const struct file_operations smem_log_fops = { |
| 1137 | .owner = THIS_MODULE, |
| 1138 | .read = smem_log_read, |
| 1139 | .write = smem_log_write, |
| 1140 | .open = smem_log_open, |
| 1141 | .release = smem_log_release, |
| 1142 | .unlocked_ioctl = smem_log_ioctl, |
| 1143 | }; |
| 1144 | |
| 1145 | static const struct file_operations smem_log_bin_fops = { |
| 1146 | .owner = THIS_MODULE, |
| 1147 | .read = smem_log_read_bin, |
| 1148 | .write = smem_log_write_bin, |
| 1149 | .open = smem_log_open, |
| 1150 | .release = smem_log_release, |
| 1151 | .unlocked_ioctl = smem_log_ioctl, |
| 1152 | }; |
| 1153 | |
| 1154 | static long smem_log_ioctl(struct file *fp, |
| 1155 | unsigned int cmd, unsigned long arg) |
| 1156 | { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1157 | switch (cmd) { |
| 1158 | default: |
| 1159 | return -ENOTTY; |
| 1160 | |
| 1161 | case SMIOC_SETMODE: |
| 1162 | if (arg == SMIOC_TEXT) { |
| 1163 | D("%s set text mode\n", __func__); |
| 1164 | fp->f_op = &smem_log_fops; |
| 1165 | } else if (arg == SMIOC_BINARY) { |
| 1166 | D("%s set bin mode\n", __func__); |
| 1167 | fp->f_op = &smem_log_bin_fops; |
| 1168 | } else { |
| 1169 | return -EINVAL; |
| 1170 | } |
| 1171 | break; |
| 1172 | case SMIOC_SETLOG: |
Eric Holmberg | 391ec1b | 2011-09-09 14:02:22 -0600 | [diff] [blame] | 1173 | if (arg == SMIOC_LOG) { |
| 1174 | if (inst[GEN].events) |
| 1175 | fp->private_data = &inst[GEN]; |
| 1176 | else |
| 1177 | return -ENODEV; |
| 1178 | } else if (arg == SMIOC_STATIC_LOG) { |
| 1179 | if (inst[STA].events) |
| 1180 | fp->private_data = &inst[STA]; |
| 1181 | else |
| 1182 | return -ENODEV; |
| 1183 | } else { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1184 | return -EINVAL; |
Eric Holmberg | 391ec1b | 2011-09-09 14:02:22 -0600 | [diff] [blame] | 1185 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1186 | break; |
| 1187 | } |
| 1188 | |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | static struct miscdevice smem_log_dev = { |
| 1193 | .minor = MISC_DYNAMIC_MINOR, |
| 1194 | .name = "smem_log", |
| 1195 | .fops = &smem_log_fops, |
| 1196 | }; |
| 1197 | |
| 1198 | #if defined(CONFIG_DEBUG_FS) |
| 1199 | |
| 1200 | #define SMEM_LOG_ITEM_PRINT_SIZE 160 |
| 1201 | |
| 1202 | #define EVENTS_PRINT_SIZE \ |
| 1203 | (SMEM_LOG_ITEM_PRINT_SIZE * SMEM_LOG_NUM_ENTRIES) |
| 1204 | |
| 1205 | static uint32_t smem_log_timeout_ms; |
| 1206 | module_param_named(timeout_ms, smem_log_timeout_ms, |
| 1207 | int, S_IRUGO | S_IWUSR | S_IWGRP); |
| 1208 | |
| 1209 | static int smem_log_debug_mask; |
| 1210 | module_param_named(debug_mask, smem_log_debug_mask, int, |
| 1211 | S_IRUGO | S_IWUSR | S_IWGRP); |
| 1212 | |
| 1213 | #define DBG(x...) do {\ |
| 1214 | if (smem_log_debug_mask) \ |
| 1215 | printk(KERN_DEBUG x);\ |
| 1216 | } while (0) |
| 1217 | |
| 1218 | static int update_read_avail(struct smem_log_inst *inst) |
| 1219 | { |
| 1220 | int curr_read_avail; |
| 1221 | unsigned long flags = 0; |
| 1222 | |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1223 | if (!inst->idx) |
| 1224 | return 0; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1225 | |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1226 | remote_spin_lock_irqsave(inst->remote_spinlock, flags); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1227 | curr_read_avail = (*inst->idx - inst->read_idx); |
| 1228 | if (curr_read_avail < 0) |
| 1229 | curr_read_avail = inst->num - inst->read_idx + *inst->idx; |
| 1230 | |
| 1231 | DBG("%s: read = %d write = %d curr = %d last = %d\n", __func__, |
| 1232 | inst->read_idx, *inst->idx, curr_read_avail, inst->last_read_avail); |
| 1233 | |
| 1234 | if (curr_read_avail < inst->last_read_avail) { |
| 1235 | if (inst->last_read_avail != inst->num) |
| 1236 | pr_info("smem_log: skipping %d log entries\n", |
| 1237 | inst->last_read_avail); |
| 1238 | inst->read_idx = *inst->idx + 1; |
| 1239 | inst->last_read_avail = inst->num - 1; |
| 1240 | } else |
| 1241 | inst->last_read_avail = curr_read_avail; |
| 1242 | |
| 1243 | remote_spin_unlock_irqrestore(inst->remote_spinlock, flags); |
| 1244 | |
| 1245 | DBG("%s: read = %d write = %d curr = %d last = %d\n", __func__, |
| 1246 | inst->read_idx, *inst->idx, curr_read_avail, inst->last_read_avail); |
| 1247 | |
| 1248 | return inst->last_read_avail; |
| 1249 | } |
| 1250 | |
| 1251 | static int _debug_dump(int log, char *buf, int max, uint32_t cont) |
| 1252 | { |
| 1253 | unsigned int idx; |
| 1254 | int write_idx, read_avail = 0; |
| 1255 | unsigned long flags; |
| 1256 | int i = 0; |
| 1257 | |
| 1258 | if (!inst[log].events) |
| 1259 | return 0; |
| 1260 | |
| 1261 | if (cont && update_read_avail(&inst[log]) == 0) |
| 1262 | return 0; |
| 1263 | |
| 1264 | remote_spin_lock_irqsave(inst[log].remote_spinlock, flags); |
| 1265 | |
| 1266 | if (cont) { |
| 1267 | idx = inst[log].read_idx; |
| 1268 | write_idx = (inst[log].read_idx + inst[log].last_read_avail); |
| 1269 | if (write_idx >= inst[log].num) |
| 1270 | write_idx -= inst[log].num; |
| 1271 | } else { |
| 1272 | write_idx = *inst[log].idx; |
| 1273 | idx = (write_idx + 1); |
| 1274 | } |
| 1275 | |
| 1276 | DBG("%s: read %d write %d idx %d num %d\n", __func__, |
| 1277 | inst[log].read_idx, write_idx, idx, inst[log].num - 1); |
| 1278 | |
| 1279 | while ((max - i) > 50) { |
| 1280 | if ((inst[log].num - 1) < idx) |
| 1281 | idx = 0; |
| 1282 | |
| 1283 | if (idx == write_idx) |
| 1284 | break; |
| 1285 | |
| 1286 | if (inst[log].events[idx].identifier) { |
| 1287 | |
| 1288 | i += scnprintf(buf + i, max - i, |
| 1289 | "%08x %08x %08x %08x %08x\n", |
| 1290 | inst[log].events[idx].identifier, |
| 1291 | inst[log].events[idx].timetick, |
| 1292 | inst[log].events[idx].data1, |
| 1293 | inst[log].events[idx].data2, |
| 1294 | inst[log].events[idx].data3); |
| 1295 | } |
| 1296 | idx++; |
| 1297 | } |
| 1298 | if (cont) { |
| 1299 | inst[log].read_idx = idx; |
| 1300 | read_avail = (write_idx - inst[log].read_idx); |
| 1301 | if (read_avail < 0) |
| 1302 | read_avail = inst->num - inst->read_idx + write_idx; |
| 1303 | inst[log].last_read_avail = read_avail; |
| 1304 | } |
| 1305 | |
| 1306 | remote_spin_unlock_irqrestore(inst[log].remote_spinlock, flags); |
| 1307 | |
| 1308 | DBG("%s: read %d write %d idx %d num %d\n", __func__, |
| 1309 | inst[log].read_idx, write_idx, idx, inst[log].num); |
| 1310 | |
| 1311 | return i; |
| 1312 | } |
| 1313 | |
| 1314 | static int _debug_dump_voters(char *buf, int max) |
| 1315 | { |
| 1316 | int k, i = 0; |
| 1317 | |
| 1318 | find_voters(); |
| 1319 | |
| 1320 | i += scnprintf(buf + i, max - i, "Voters:\n"); |
| 1321 | for (k = 0; k < ARRAY_SIZE(voter_d3_syms); ++k) |
| 1322 | if (voter_d3_syms[k].str) |
| 1323 | i += scnprintf(buf + i, max - i, "%s ", |
| 1324 | voter_d3_syms[k].str); |
| 1325 | for (k = 0; k < ARRAY_SIZE(voter_d2_syms); ++k) |
| 1326 | if (voter_d2_syms[k].str) |
| 1327 | i += scnprintf(buf + i, max - i, "%s ", |
| 1328 | voter_d2_syms[k].str); |
| 1329 | i += scnprintf(buf + i, max - i, "\n"); |
| 1330 | |
| 1331 | return i; |
| 1332 | } |
| 1333 | |
| 1334 | static int _debug_dump_sym(int log, char *buf, int max, uint32_t cont) |
| 1335 | { |
| 1336 | unsigned int idx; |
| 1337 | int write_idx, read_avail = 0; |
| 1338 | unsigned long flags; |
| 1339 | int i = 0; |
| 1340 | |
| 1341 | char *proc; |
| 1342 | char *sub; |
| 1343 | char *id; |
| 1344 | const char *sym = NULL; |
| 1345 | |
| 1346 | uint32_t data[3]; |
| 1347 | |
| 1348 | uint32_t proc_val = 0; |
| 1349 | uint32_t sub_val = 0; |
| 1350 | uint32_t id_val = 0; |
| 1351 | uint32_t id_only_val = 0; |
| 1352 | uint32_t data1 = 0; |
| 1353 | uint32_t data2 = 0; |
| 1354 | uint32_t data3 = 0; |
| 1355 | |
| 1356 | if (!inst[log].events) |
| 1357 | return 0; |
| 1358 | |
| 1359 | find_voters(); |
| 1360 | |
| 1361 | if (cont && update_read_avail(&inst[log]) == 0) |
| 1362 | return 0; |
| 1363 | |
| 1364 | remote_spin_lock_irqsave(inst[log].remote_spinlock, flags); |
| 1365 | |
| 1366 | if (cont) { |
| 1367 | idx = inst[log].read_idx; |
| 1368 | write_idx = (inst[log].read_idx + inst[log].last_read_avail); |
| 1369 | if (write_idx >= inst[log].num) |
| 1370 | write_idx -= inst[log].num; |
| 1371 | } else { |
| 1372 | write_idx = *inst[log].idx; |
| 1373 | idx = (write_idx + 1); |
| 1374 | } |
| 1375 | |
| 1376 | DBG("%s: read %d write %d idx %d num %d\n", __func__, |
| 1377 | inst[log].read_idx, write_idx, idx, inst[log].num - 1); |
| 1378 | |
| 1379 | for (; (max - i) > SMEM_LOG_ITEM_PRINT_SIZE; idx++) { |
| 1380 | if (idx > (inst[log].num - 1)) |
| 1381 | idx = 0; |
| 1382 | |
| 1383 | if (idx == write_idx) |
| 1384 | break; |
| 1385 | |
| 1386 | if (idx < inst[log].num) { |
| 1387 | if (!inst[log].events[idx].identifier) |
| 1388 | continue; |
| 1389 | |
| 1390 | proc_val = PROC & inst[log].events[idx].identifier; |
| 1391 | sub_val = SUB & inst[log].events[idx].identifier; |
| 1392 | id_val = (SUB | ID) & inst[log].events[idx].identifier; |
| 1393 | id_only_val = ID & inst[log].events[idx].identifier; |
| 1394 | data1 = inst[log].events[idx].data1; |
| 1395 | data2 = inst[log].events[idx].data2; |
| 1396 | data3 = inst[log].events[idx].data3; |
| 1397 | |
| 1398 | if (!(proc_val & SMEM_LOG_CONT)) { |
| 1399 | i += scnprintf(buf + i, max - i, "\n"); |
| 1400 | |
| 1401 | proc = find_sym(ID_SYM, proc_val); |
| 1402 | |
| 1403 | if (proc) |
| 1404 | i += scnprintf(buf + i, max - i, |
| 1405 | "%4s: ", proc); |
| 1406 | else |
| 1407 | i += scnprintf(buf + i, max - i, |
| 1408 | "%04x: ", |
| 1409 | PROC & |
| 1410 | inst[log].events[idx]. |
| 1411 | identifier); |
| 1412 | |
| 1413 | i += scnprintf(buf + i, max - i, "%10u ", |
| 1414 | inst[log].events[idx].timetick); |
| 1415 | |
| 1416 | sub = find_sym(BASE_SYM, sub_val); |
| 1417 | |
| 1418 | if (sub) |
| 1419 | i += scnprintf(buf + i, max - i, |
| 1420 | "%9s: ", sub); |
| 1421 | else |
| 1422 | i += scnprintf(buf + i, max - i, |
| 1423 | "%08x: ", sub_val); |
| 1424 | |
| 1425 | id = find_sym(EVENT_SYM, id_val); |
| 1426 | |
| 1427 | if (id) |
| 1428 | i += scnprintf(buf + i, max - i, |
| 1429 | "%11s: ", id); |
| 1430 | else |
| 1431 | i += scnprintf(buf + i, max - i, |
| 1432 | "%08x: ", id_only_val); |
| 1433 | } |
| 1434 | |
| 1435 | if ((proc_val & SMEM_LOG_CONT) && |
| 1436 | (id_val == ONCRPC_LOG_EVENT_STD_CALL || |
| 1437 | id_val == ONCRPC_LOG_EVENT_STD_REPLY)) { |
| 1438 | data[0] = data1; |
| 1439 | data[1] = data2; |
| 1440 | data[2] = data3; |
| 1441 | i += scnprintf(buf + i, max - i, |
| 1442 | " %.16s", (char *) data); |
| 1443 | } else if (proc_val & SMEM_LOG_CONT) { |
| 1444 | i += scnprintf(buf + i, max - i, |
| 1445 | " %08x %08x %08x", |
| 1446 | data1, data2, data3); |
| 1447 | } else if (id_val == ONCRPC_LOG_EVENT_STD_CALL) { |
| 1448 | sym = smd_rpc_get_sym(data2); |
| 1449 | |
| 1450 | if (sym) |
| 1451 | i += scnprintf(buf + i, max - i, |
| 1452 | "xid:%4i %8s proc:%3i", |
| 1453 | data1, sym, data3); |
| 1454 | else |
| 1455 | i += scnprintf(buf + i, max - i, |
| 1456 | "xid:%4i %08x proc:%3i", |
| 1457 | data1, data2, data3); |
| 1458 | #if defined(CONFIG_MSM_N_WAY_SMSM) |
| 1459 | } else if (id_val == DEM_STATE_CHANGE) { |
| 1460 | if (data1 == 1) { |
| 1461 | i += scnprintf(buf + i, max - i, |
| 1462 | "MASTER: "); |
| 1463 | sym = find_sym(DEM_STATE_MASTER_SYM, |
| 1464 | data2); |
| 1465 | } else if (data1 == 0) { |
| 1466 | i += scnprintf(buf + i, max - i, |
| 1467 | " SLAVE: "); |
| 1468 | sym = find_sym(DEM_STATE_SLAVE_SYM, |
| 1469 | data2); |
| 1470 | } else { |
| 1471 | i += scnprintf(buf + i, max - i, |
| 1472 | "%x: ", data1); |
| 1473 | sym = NULL; |
| 1474 | } |
| 1475 | if (sym) |
| 1476 | i += scnprintf(buf + i, max - i, |
| 1477 | "from:%s ", sym); |
| 1478 | else |
| 1479 | i += scnprintf(buf + i, max - i, |
| 1480 | "from:0x%x ", data2); |
| 1481 | |
| 1482 | if (data1 == 1) |
| 1483 | sym = find_sym(DEM_STATE_MASTER_SYM, |
| 1484 | data3); |
| 1485 | else if (data1 == 0) |
| 1486 | sym = find_sym(DEM_STATE_SLAVE_SYM, |
| 1487 | data3); |
| 1488 | else |
| 1489 | sym = NULL; |
| 1490 | if (sym) |
| 1491 | i += scnprintf(buf + i, max - i, |
| 1492 | "to:%s ", sym); |
| 1493 | else |
| 1494 | i += scnprintf(buf + i, max - i, |
| 1495 | "to:0x%x ", data3); |
| 1496 | |
| 1497 | } else if (id_val == DEM_STATE_MACHINE_ENTER) { |
| 1498 | i += scnprintf(buf + i, max - i, |
| 1499 | "swfi:%i timer:%i manexit:%i", |
| 1500 | data1, data2, data3); |
| 1501 | |
| 1502 | } else if (id_val == DEM_TIME_SYNC_REQUEST || |
| 1503 | id_val == DEM_TIME_SYNC_POLL || |
| 1504 | id_val == DEM_TIME_SYNC_INIT) { |
| 1505 | sym = find_sym(SMSM_ENTRY_TYPE_SYM, |
| 1506 | data1); |
| 1507 | if (sym) |
| 1508 | i += scnprintf(buf + i, max - i, |
| 1509 | "hostid:%s", sym); |
| 1510 | else |
| 1511 | i += scnprintf(buf + i, max - i, |
| 1512 | "hostid:%x", data1); |
| 1513 | |
| 1514 | } else if (id_val == DEM_TIME_SYNC_START || |
| 1515 | id_val == DEM_TIME_SYNC_SEND_VALUE) { |
| 1516 | unsigned mask = 0x1; |
| 1517 | unsigned tmp = 0; |
| 1518 | if (id_val == DEM_TIME_SYNC_START) |
| 1519 | i += scnprintf(buf + i, max - i, |
| 1520 | "req:"); |
| 1521 | else |
| 1522 | i += scnprintf(buf + i, max - i, |
| 1523 | "pol:"); |
| 1524 | while (mask) { |
| 1525 | if (mask & data1) { |
| 1526 | sym = find_sym( |
| 1527 | SMSM_ENTRY_TYPE_SYM, |
| 1528 | tmp); |
| 1529 | if (sym) |
| 1530 | i += scnprintf(buf + i, |
| 1531 | max - i, |
| 1532 | "%s ", |
| 1533 | sym); |
| 1534 | else |
| 1535 | i += scnprintf(buf + i, |
| 1536 | max - i, |
| 1537 | "%i ", |
| 1538 | tmp); |
| 1539 | } |
| 1540 | mask <<= 1; |
| 1541 | tmp++; |
| 1542 | } |
| 1543 | if (id_val == DEM_TIME_SYNC_SEND_VALUE) |
| 1544 | i += scnprintf(buf + i, max - i, |
| 1545 | "tick:%x", data2); |
| 1546 | } else if (id_val == DEM_SMSM_ISR) { |
| 1547 | unsigned vals[] = {data2, data3}; |
| 1548 | unsigned j; |
| 1549 | unsigned mask; |
| 1550 | unsigned tmp; |
| 1551 | unsigned once; |
| 1552 | sym = find_sym(SMSM_ENTRY_TYPE_SYM, |
| 1553 | data1); |
| 1554 | if (sym) |
| 1555 | i += scnprintf(buf + i, max - i, |
| 1556 | "%s ", sym); |
| 1557 | else |
| 1558 | i += scnprintf(buf + i, max - i, |
| 1559 | "%x ", data1); |
| 1560 | |
| 1561 | for (j = 0; j < ARRAY_SIZE(vals); ++j) { |
| 1562 | i += scnprintf(buf + i, max - i, "["); |
| 1563 | mask = 0x80000000; |
| 1564 | once = 0; |
| 1565 | while (mask) { |
| 1566 | tmp = vals[j] & mask; |
| 1567 | mask >>= 1; |
| 1568 | if (!tmp) |
| 1569 | continue; |
| 1570 | sym = find_sym(SMSM_STATE_SYM, |
| 1571 | tmp); |
| 1572 | |
| 1573 | if (once) |
| 1574 | i += scnprintf(buf + i, |
| 1575 | max - i, |
| 1576 | " "); |
| 1577 | if (sym) |
| 1578 | i += scnprintf(buf + i, |
| 1579 | max - i, |
| 1580 | "%s", |
| 1581 | sym); |
| 1582 | else |
| 1583 | i += scnprintf(buf + i, |
| 1584 | max - i, |
| 1585 | "0x%x", |
| 1586 | tmp); |
| 1587 | once = 1; |
| 1588 | } |
| 1589 | i += scnprintf(buf + i, max - i, "] "); |
| 1590 | } |
| 1591 | #else |
| 1592 | } else if (id_val == DEMAPPS_WAKEUP_REASON) { |
| 1593 | unsigned mask = 0x80000000; |
| 1594 | unsigned tmp = 0; |
| 1595 | while (mask) { |
| 1596 | tmp = data1 & mask; |
| 1597 | mask >>= 1; |
| 1598 | if (!tmp) |
| 1599 | continue; |
| 1600 | sym = find_sym(WAKEUP_SYM, tmp); |
| 1601 | if (sym) |
| 1602 | i += scnprintf(buf + i, |
| 1603 | max - i, |
| 1604 | "%s ", |
| 1605 | sym); |
| 1606 | else |
| 1607 | i += scnprintf(buf + i, |
| 1608 | max - i, |
| 1609 | "%08x ", |
| 1610 | tmp); |
| 1611 | } |
| 1612 | i += scnprintf(buf + i, max - i, |
| 1613 | "%08x %08x", data2, data3); |
| 1614 | } else if (id_val == DEMMOD_APPS_WAKEUP_INT) { |
| 1615 | sym = find_sym(WAKEUP_INT_SYM, data1); |
| 1616 | |
| 1617 | if (sym) |
| 1618 | i += scnprintf(buf + i, max - i, |
| 1619 | "%s %08x %08x", |
| 1620 | sym, data2, data3); |
| 1621 | else |
| 1622 | i += scnprintf(buf + i, max - i, |
| 1623 | "%08x %08x %08x", |
| 1624 | data1, data2, data3); |
| 1625 | } else if (id_val == DEM_NO_SLEEP || |
| 1626 | id_val == NO_SLEEP_NEW) { |
| 1627 | unsigned vals[] = {data3, data2}; |
| 1628 | unsigned j; |
| 1629 | unsigned mask; |
| 1630 | unsigned tmp; |
| 1631 | unsigned once; |
| 1632 | i += scnprintf(buf + i, max - i, "%08x ", |
| 1633 | data1); |
| 1634 | i += scnprintf(buf + i, max - i, "["); |
| 1635 | once = 0; |
| 1636 | for (j = 0; j < ARRAY_SIZE(vals); ++j) { |
| 1637 | mask = 0x00000001; |
| 1638 | while (mask) { |
| 1639 | tmp = vals[j] & mask; |
| 1640 | mask <<= 1; |
| 1641 | if (!tmp) |
| 1642 | continue; |
| 1643 | if (j == 0) |
| 1644 | sym = find_sym( |
| 1645 | VOTER_D3_SYM, |
| 1646 | tmp); |
| 1647 | else |
| 1648 | sym = find_sym( |
| 1649 | VOTER_D2_SYM, |
| 1650 | tmp); |
| 1651 | |
| 1652 | if (once) |
| 1653 | i += scnprintf(buf + i, |
| 1654 | max - i, |
| 1655 | " "); |
| 1656 | if (sym) |
| 1657 | i += scnprintf(buf + i, |
| 1658 | max - i, |
| 1659 | "%s", |
| 1660 | sym); |
| 1661 | else |
| 1662 | i += scnprintf(buf + i, |
| 1663 | max - i, |
| 1664 | "%08x", |
| 1665 | tmp); |
| 1666 | once = 1; |
| 1667 | } |
| 1668 | } |
| 1669 | i += scnprintf(buf + i, max - i, "] "); |
| 1670 | #endif |
| 1671 | } else if (id_val == SMEM_LOG_EVENT_CB) { |
| 1672 | unsigned vals[] = {data2, data3}; |
| 1673 | unsigned j; |
| 1674 | unsigned mask; |
| 1675 | unsigned tmp; |
| 1676 | unsigned once; |
| 1677 | i += scnprintf(buf + i, max - i, "%08x ", |
| 1678 | data1); |
| 1679 | for (j = 0; j < ARRAY_SIZE(vals); ++j) { |
| 1680 | i += scnprintf(buf + i, max - i, "["); |
| 1681 | mask = 0x80000000; |
| 1682 | once = 0; |
| 1683 | while (mask) { |
| 1684 | tmp = vals[j] & mask; |
| 1685 | mask >>= 1; |
| 1686 | if (!tmp) |
| 1687 | continue; |
| 1688 | sym = find_sym(SMSM_SYM, tmp); |
| 1689 | |
| 1690 | if (once) |
| 1691 | i += scnprintf(buf + i, |
| 1692 | max - i, |
| 1693 | " "); |
| 1694 | if (sym) |
| 1695 | i += scnprintf(buf + i, |
| 1696 | max - i, |
| 1697 | "%s", |
| 1698 | sym); |
| 1699 | else |
| 1700 | i += scnprintf(buf + i, |
| 1701 | max - i, |
| 1702 | "%08x", |
| 1703 | tmp); |
| 1704 | once = 1; |
| 1705 | } |
| 1706 | i += scnprintf(buf + i, max - i, "] "); |
| 1707 | } |
| 1708 | } else { |
| 1709 | i += scnprintf(buf + i, max - i, |
| 1710 | "%08x %08x %08x", |
| 1711 | data1, data2, data3); |
| 1712 | } |
| 1713 | } |
| 1714 | } |
| 1715 | if (cont) { |
| 1716 | inst[log].read_idx = idx; |
| 1717 | read_avail = (write_idx - inst[log].read_idx); |
| 1718 | if (read_avail < 0) |
| 1719 | read_avail = inst->num - inst->read_idx + write_idx; |
| 1720 | inst[log].last_read_avail = read_avail; |
| 1721 | } |
| 1722 | |
| 1723 | remote_spin_unlock_irqrestore(inst[log].remote_spinlock, flags); |
| 1724 | |
| 1725 | DBG("%s: read %d write %d idx %d num %d\n", __func__, |
| 1726 | inst[log].read_idx, write_idx, idx, inst[log].num); |
| 1727 | |
| 1728 | return i; |
| 1729 | } |
| 1730 | |
| 1731 | static int debug_dump(char *buf, int max, uint32_t cont) |
| 1732 | { |
| 1733 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1734 | |
| 1735 | if (!inst[GEN].idx || !inst[GEN].events) |
| 1736 | return -ENODEV; |
| 1737 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1738 | while (cont) { |
| 1739 | update_read_avail(&inst[GEN]); |
| 1740 | r = wait_event_interruptible_timeout(inst[GEN].read_wait, |
| 1741 | inst[GEN].last_read_avail, |
| 1742 | smem_log_timeout_ms * |
| 1743 | HZ / 1000); |
| 1744 | DBG("%s: read available %d\n", __func__, |
| 1745 | inst[GEN].last_read_avail); |
| 1746 | if (r < 0) |
| 1747 | return 0; |
| 1748 | else if (inst[GEN].last_read_avail) |
| 1749 | break; |
| 1750 | } |
| 1751 | |
| 1752 | return _debug_dump(GEN, buf, max, cont); |
| 1753 | } |
| 1754 | |
| 1755 | static int debug_dump_sym(char *buf, int max, uint32_t cont) |
| 1756 | { |
| 1757 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1758 | |
| 1759 | if (!inst[GEN].idx || !inst[GEN].events) |
| 1760 | return -ENODEV; |
| 1761 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1762 | while (cont) { |
| 1763 | update_read_avail(&inst[GEN]); |
| 1764 | r = wait_event_interruptible_timeout(inst[GEN].read_wait, |
| 1765 | inst[GEN].last_read_avail, |
| 1766 | smem_log_timeout_ms * |
| 1767 | HZ / 1000); |
| 1768 | DBG("%s: readavailable %d\n", __func__, |
| 1769 | inst[GEN].last_read_avail); |
| 1770 | if (r < 0) |
| 1771 | return 0; |
| 1772 | else if (inst[GEN].last_read_avail) |
| 1773 | break; |
| 1774 | } |
| 1775 | |
| 1776 | return _debug_dump_sym(GEN, buf, max, cont); |
| 1777 | } |
| 1778 | |
| 1779 | static int debug_dump_static(char *buf, int max, uint32_t cont) |
| 1780 | { |
| 1781 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1782 | |
| 1783 | if (!inst[STA].idx || !inst[STA].events) |
| 1784 | return -ENODEV; |
| 1785 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1786 | while (cont) { |
| 1787 | update_read_avail(&inst[STA]); |
| 1788 | r = wait_event_interruptible_timeout(inst[STA].read_wait, |
| 1789 | inst[STA].last_read_avail, |
| 1790 | smem_log_timeout_ms * |
| 1791 | HZ / 1000); |
| 1792 | DBG("%s: readavailable %d\n", __func__, |
| 1793 | inst[STA].last_read_avail); |
| 1794 | if (r < 0) |
| 1795 | return 0; |
| 1796 | else if (inst[STA].last_read_avail) |
| 1797 | break; |
| 1798 | } |
| 1799 | |
| 1800 | return _debug_dump(STA, buf, max, cont); |
| 1801 | } |
| 1802 | |
| 1803 | static int debug_dump_static_sym(char *buf, int max, uint32_t cont) |
| 1804 | { |
| 1805 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1806 | |
| 1807 | if (!inst[STA].idx || !inst[STA].events) |
| 1808 | return -ENODEV; |
| 1809 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1810 | while (cont) { |
| 1811 | update_read_avail(&inst[STA]); |
| 1812 | r = wait_event_interruptible_timeout(inst[STA].read_wait, |
| 1813 | inst[STA].last_read_avail, |
| 1814 | smem_log_timeout_ms * |
| 1815 | HZ / 1000); |
| 1816 | DBG("%s: readavailable %d\n", __func__, |
| 1817 | inst[STA].last_read_avail); |
| 1818 | if (r < 0) |
| 1819 | return 0; |
| 1820 | else if (inst[STA].last_read_avail) |
| 1821 | break; |
| 1822 | } |
| 1823 | |
| 1824 | return _debug_dump_sym(STA, buf, max, cont); |
| 1825 | } |
| 1826 | |
| 1827 | static int debug_dump_power(char *buf, int max, uint32_t cont) |
| 1828 | { |
| 1829 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1830 | |
| 1831 | if (!inst[POW].idx || !inst[POW].events) |
| 1832 | return -ENODEV; |
| 1833 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1834 | while (cont) { |
| 1835 | update_read_avail(&inst[POW]); |
| 1836 | r = wait_event_interruptible_timeout(inst[POW].read_wait, |
| 1837 | inst[POW].last_read_avail, |
| 1838 | smem_log_timeout_ms * |
| 1839 | HZ / 1000); |
| 1840 | DBG("%s: readavailable %d\n", __func__, |
| 1841 | inst[POW].last_read_avail); |
| 1842 | if (r < 0) |
| 1843 | return 0; |
| 1844 | else if (inst[POW].last_read_avail) |
| 1845 | break; |
| 1846 | } |
| 1847 | |
| 1848 | return _debug_dump(POW, buf, max, cont); |
| 1849 | } |
| 1850 | |
| 1851 | static int debug_dump_power_sym(char *buf, int max, uint32_t cont) |
| 1852 | { |
| 1853 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1854 | |
| 1855 | if (!inst[POW].idx || !inst[POW].events) |
| 1856 | return -ENODEV; |
| 1857 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1858 | while (cont) { |
| 1859 | update_read_avail(&inst[POW]); |
| 1860 | r = wait_event_interruptible_timeout(inst[POW].read_wait, |
| 1861 | inst[POW].last_read_avail, |
| 1862 | smem_log_timeout_ms * |
| 1863 | HZ / 1000); |
| 1864 | DBG("%s: readavailable %d\n", __func__, |
| 1865 | inst[POW].last_read_avail); |
| 1866 | if (r < 0) |
| 1867 | return 0; |
| 1868 | else if (inst[POW].last_read_avail) |
| 1869 | break; |
| 1870 | } |
| 1871 | |
| 1872 | return _debug_dump_sym(POW, buf, max, cont); |
| 1873 | } |
| 1874 | |
| 1875 | static int debug_dump_voters(char *buf, int max, uint32_t cont) |
| 1876 | { |
| 1877 | return _debug_dump_voters(buf, max); |
| 1878 | } |
| 1879 | |
| 1880 | static char debug_buffer[EVENTS_PRINT_SIZE]; |
| 1881 | |
| 1882 | static ssize_t debug_read(struct file *file, char __user *buf, |
| 1883 | size_t count, loff_t *ppos) |
| 1884 | { |
| 1885 | int r; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1886 | int bsize = 0; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1887 | int (*fill)(char *, int, uint32_t) = file->private_data; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1888 | if (!(*ppos)) { |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1889 | bsize = fill(debug_buffer, EVENTS_PRINT_SIZE, 0); |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1890 | |
| 1891 | if (bsize < 0) |
| 1892 | bsize = scnprintf(debug_buffer, |
| 1893 | EVENTS_PRINT_SIZE, "Log not available\n"); |
| 1894 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1895 | DBG("%s: count %d ppos %d\n", __func__, count, (unsigned int)*ppos); |
| 1896 | r = simple_read_from_buffer(buf, count, ppos, debug_buffer, |
| 1897 | bsize); |
| 1898 | return r; |
| 1899 | } |
| 1900 | |
| 1901 | static ssize_t debug_read_cont(struct file *file, char __user *buf, |
| 1902 | size_t count, loff_t *ppos) |
| 1903 | { |
| 1904 | int (*fill)(char *, int, uint32_t) = file->private_data; |
| 1905 | char *buffer = kmalloc(count, GFP_KERNEL); |
| 1906 | int bsize; |
| 1907 | if (!buffer) |
| 1908 | return -ENOMEM; |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1909 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1910 | bsize = fill(buffer, count, 1); |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1911 | if (bsize < 0) { |
| 1912 | if (*ppos == 0) |
| 1913 | bsize = scnprintf(buffer, count, "Log not available\n"); |
| 1914 | else |
| 1915 | bsize = 0; |
| 1916 | } |
| 1917 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1918 | DBG("%s: count %d bsize %d\n", __func__, count, bsize); |
| 1919 | if (copy_to_user(buf, buffer, bsize)) { |
| 1920 | kfree(buffer); |
| 1921 | return -EFAULT; |
| 1922 | } |
Eric Holmberg | 1665335 | 2012-03-28 16:16:47 -0600 | [diff] [blame] | 1923 | *ppos += bsize; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1924 | kfree(buffer); |
| 1925 | return bsize; |
| 1926 | } |
| 1927 | |
| 1928 | static int debug_open(struct inode *inode, struct file *file) |
| 1929 | { |
| 1930 | file->private_data = inode->i_private; |
| 1931 | return 0; |
| 1932 | } |
| 1933 | |
| 1934 | static const struct file_operations debug_ops = { |
| 1935 | .read = debug_read, |
| 1936 | .open = debug_open, |
| 1937 | }; |
| 1938 | |
| 1939 | static const struct file_operations debug_ops_cont = { |
| 1940 | .read = debug_read_cont, |
| 1941 | .open = debug_open, |
| 1942 | }; |
| 1943 | |
| 1944 | static void debug_create(const char *name, mode_t mode, |
| 1945 | struct dentry *dent, |
| 1946 | int (*fill)(char *buf, int max, uint32_t cont), |
| 1947 | const struct file_operations *fops) |
| 1948 | { |
| 1949 | debugfs_create_file(name, mode, dent, fill, fops); |
| 1950 | } |
| 1951 | |
| 1952 | static void smem_log_debugfs_init(void) |
| 1953 | { |
| 1954 | struct dentry *dent; |
| 1955 | |
| 1956 | dent = debugfs_create_dir("smem_log", 0); |
| 1957 | if (IS_ERR(dent)) |
| 1958 | return; |
| 1959 | |
| 1960 | debug_create("dump", 0444, dent, debug_dump, &debug_ops); |
| 1961 | debug_create("dump_sym", 0444, dent, debug_dump_sym, &debug_ops); |
| 1962 | debug_create("dump_static", 0444, dent, debug_dump_static, &debug_ops); |
| 1963 | debug_create("dump_static_sym", 0444, dent, |
| 1964 | debug_dump_static_sym, &debug_ops); |
| 1965 | debug_create("dump_power", 0444, dent, debug_dump_power, &debug_ops); |
| 1966 | debug_create("dump_power_sym", 0444, dent, |
| 1967 | debug_dump_power_sym, &debug_ops); |
| 1968 | debug_create("dump_voters", 0444, dent, |
| 1969 | debug_dump_voters, &debug_ops); |
| 1970 | |
| 1971 | debug_create("dump_cont", 0444, dent, debug_dump, &debug_ops_cont); |
| 1972 | debug_create("dump_sym_cont", 0444, dent, |
| 1973 | debug_dump_sym, &debug_ops_cont); |
| 1974 | debug_create("dump_static_cont", 0444, dent, |
| 1975 | debug_dump_static, &debug_ops_cont); |
| 1976 | debug_create("dump_static_sym_cont", 0444, dent, |
| 1977 | debug_dump_static_sym, &debug_ops_cont); |
| 1978 | debug_create("dump_power_cont", 0444, dent, |
| 1979 | debug_dump_power, &debug_ops_cont); |
| 1980 | debug_create("dump_power_sym_cont", 0444, dent, |
| 1981 | debug_dump_power_sym, &debug_ops_cont); |
| 1982 | |
| 1983 | smem_log_timeout_ms = 500; |
| 1984 | smem_log_debug_mask = 0; |
| 1985 | } |
| 1986 | #else |
| 1987 | static void smem_log_debugfs_init(void) {} |
| 1988 | #endif |
| 1989 | |
| 1990 | static int smem_log_initialize(void) |
| 1991 | { |
| 1992 | int ret; |
| 1993 | |
| 1994 | ret = _smem_log_init(); |
| 1995 | if (ret < 0) { |
| 1996 | pr_err("%s: init failed %d\n", __func__, ret); |
| 1997 | return ret; |
| 1998 | } |
| 1999 | |
| 2000 | ret = misc_register(&smem_log_dev); |
| 2001 | if (ret < 0) { |
| 2002 | pr_err("%s: device register failed %d\n", __func__, ret); |
| 2003 | return ret; |
| 2004 | } |
| 2005 | |
| 2006 | smem_log_enable = 1; |
| 2007 | smem_log_initialized = 1; |
| 2008 | smem_log_debugfs_init(); |
| 2009 | return ret; |
| 2010 | } |
| 2011 | |
Jeff Hugo | 7cc06b1 | 2013-06-17 16:13:18 -0600 | [diff] [blame] | 2012 | static int smem_module_init_notifier(struct notifier_block *this, |
Karthikeyan Ramasubramanian | fa44cd7 | 2012-08-22 18:08:14 -0600 | [diff] [blame] | 2013 | unsigned long code, |
| 2014 | void *_cmd) |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2015 | { |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 2016 | int ret = 0; |
Karthikeyan Ramasubramanian | fa44cd7 | 2012-08-22 18:08:14 -0600 | [diff] [blame] | 2017 | if (!smem_log_initialized) |
| 2018 | ret = smem_log_initialize(); |
Karthikeyan Ramasubramanian | 867a929 | 2012-03-22 17:20:20 -0600 | [diff] [blame] | 2019 | return ret; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2020 | } |
| 2021 | |
| 2022 | static struct notifier_block nb = { |
Jeff Hugo | 7cc06b1 | 2013-06-17 16:13:18 -0600 | [diff] [blame] | 2023 | .notifier_call = smem_module_init_notifier, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2024 | }; |
| 2025 | |
| 2026 | static int __init smem_log_init(void) |
| 2027 | { |
Jeff Hugo | 7cc06b1 | 2013-06-17 16:13:18 -0600 | [diff] [blame] | 2028 | return smem_module_init_notifier_register(&nb); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 2029 | } |
| 2030 | |
| 2031 | |
| 2032 | module_init(smem_log_init); |
| 2033 | |
| 2034 | MODULE_DESCRIPTION("smem log"); |
| 2035 | MODULE_LICENSE("GPL v2"); |