Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(C) 2015 Linaro Limited. All rights reserved. |
| 3 | * Author: Mathieu Poirier <mathieu.poirier@linaro.org> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 as published by |
| 7 | * the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/pm_runtime.h> |
| 19 | #include <linux/sysfs.h> |
| 20 | #include "coresight-etm4x.h" |
Mathieu Poirier | 2b7adc4 | 2016-08-25 15:19:11 -0600 | [diff] [blame] | 21 | #include "coresight-priv.h" |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 22 | |
| 23 | static int etm4_set_mode_exclude(struct etmv4_drvdata *drvdata, bool exclude) |
| 24 | { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 25 | u8 idx; |
| 26 | struct etmv4_config *config = &drvdata->config; |
| 27 | |
| 28 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 29 | |
| 30 | /* |
| 31 | * TRCACATRn.TYPE bit[1:0]: type of comparison |
| 32 | * the trace unit performs |
| 33 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 34 | if (BMVAL(config->addr_acc[idx], 0, 1) == ETM_INSTR_ADDR) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 35 | if (idx % 2 != 0) |
| 36 | return -EINVAL; |
| 37 | |
| 38 | /* |
| 39 | * We are performing instruction address comparison. Set the |
| 40 | * relevant bit of ViewInst Include/Exclude Control register |
| 41 | * for corresponding address comparator pair. |
| 42 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 43 | if (config->addr_type[idx] != ETM_ADDR_TYPE_RANGE || |
| 44 | config->addr_type[idx + 1] != ETM_ADDR_TYPE_RANGE) |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 45 | return -EINVAL; |
| 46 | |
| 47 | if (exclude == true) { |
| 48 | /* |
| 49 | * Set exclude bit and unset the include bit |
| 50 | * corresponding to comparator pair |
| 51 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 52 | config->viiectlr |= BIT(idx / 2 + 16); |
| 53 | config->viiectlr &= ~BIT(idx / 2); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 54 | } else { |
| 55 | /* |
| 56 | * Set include bit and unset exclude bit |
| 57 | * corresponding to comparator pair |
| 58 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 59 | config->viiectlr |= BIT(idx / 2); |
| 60 | config->viiectlr &= ~BIT(idx / 2 + 16); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 61 | } |
| 62 | } |
| 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | static ssize_t nr_pe_cmp_show(struct device *dev, |
| 67 | struct device_attribute *attr, |
| 68 | char *buf) |
| 69 | { |
| 70 | unsigned long val; |
| 71 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 72 | |
| 73 | val = drvdata->nr_pe_cmp; |
| 74 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 75 | } |
| 76 | static DEVICE_ATTR_RO(nr_pe_cmp); |
| 77 | |
| 78 | static ssize_t nr_addr_cmp_show(struct device *dev, |
| 79 | struct device_attribute *attr, |
| 80 | char *buf) |
| 81 | { |
| 82 | unsigned long val; |
| 83 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 84 | |
| 85 | val = drvdata->nr_addr_cmp; |
| 86 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 87 | } |
| 88 | static DEVICE_ATTR_RO(nr_addr_cmp); |
| 89 | |
| 90 | static ssize_t nr_cntr_show(struct device *dev, |
| 91 | struct device_attribute *attr, |
| 92 | char *buf) |
| 93 | { |
| 94 | unsigned long val; |
| 95 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 96 | |
| 97 | val = drvdata->nr_cntr; |
| 98 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 99 | } |
| 100 | static DEVICE_ATTR_RO(nr_cntr); |
| 101 | |
| 102 | static ssize_t nr_ext_inp_show(struct device *dev, |
| 103 | struct device_attribute *attr, |
| 104 | char *buf) |
| 105 | { |
| 106 | unsigned long val; |
| 107 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 108 | |
| 109 | val = drvdata->nr_ext_inp; |
| 110 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 111 | } |
| 112 | static DEVICE_ATTR_RO(nr_ext_inp); |
| 113 | |
| 114 | static ssize_t numcidc_show(struct device *dev, |
| 115 | struct device_attribute *attr, |
| 116 | char *buf) |
| 117 | { |
| 118 | unsigned long val; |
| 119 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 120 | |
| 121 | val = drvdata->numcidc; |
| 122 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 123 | } |
| 124 | static DEVICE_ATTR_RO(numcidc); |
| 125 | |
| 126 | static ssize_t numvmidc_show(struct device *dev, |
| 127 | struct device_attribute *attr, |
| 128 | char *buf) |
| 129 | { |
| 130 | unsigned long val; |
| 131 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 132 | |
| 133 | val = drvdata->numvmidc; |
| 134 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 135 | } |
| 136 | static DEVICE_ATTR_RO(numvmidc); |
| 137 | |
| 138 | static ssize_t nrseqstate_show(struct device *dev, |
| 139 | struct device_attribute *attr, |
| 140 | char *buf) |
| 141 | { |
| 142 | unsigned long val; |
| 143 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 144 | |
| 145 | val = drvdata->nrseqstate; |
| 146 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 147 | } |
| 148 | static DEVICE_ATTR_RO(nrseqstate); |
| 149 | |
| 150 | static ssize_t nr_resource_show(struct device *dev, |
| 151 | struct device_attribute *attr, |
| 152 | char *buf) |
| 153 | { |
| 154 | unsigned long val; |
| 155 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 156 | |
| 157 | val = drvdata->nr_resource; |
| 158 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 159 | } |
| 160 | static DEVICE_ATTR_RO(nr_resource); |
| 161 | |
| 162 | static ssize_t nr_ss_cmp_show(struct device *dev, |
| 163 | struct device_attribute *attr, |
| 164 | char *buf) |
| 165 | { |
| 166 | unsigned long val; |
| 167 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 168 | |
| 169 | val = drvdata->nr_ss_cmp; |
| 170 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 171 | } |
| 172 | static DEVICE_ATTR_RO(nr_ss_cmp); |
| 173 | |
| 174 | static ssize_t reset_store(struct device *dev, |
| 175 | struct device_attribute *attr, |
| 176 | const char *buf, size_t size) |
| 177 | { |
| 178 | int i; |
| 179 | unsigned long val; |
| 180 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 181 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 182 | |
| 183 | if (kstrtoul(buf, 16, &val)) |
| 184 | return -EINVAL; |
| 185 | |
| 186 | spin_lock(&drvdata->spinlock); |
| 187 | if (val) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 188 | config->mode = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 189 | |
| 190 | /* Disable data tracing: do not trace load and store data transfers */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 191 | config->mode &= ~(ETM_MODE_LOAD | ETM_MODE_STORE); |
| 192 | config->cfg &= ~(BIT(1) | BIT(2)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 193 | |
| 194 | /* Disable data value and data address tracing */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 195 | config->mode &= ~(ETM_MODE_DATA_TRACE_ADDR | |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 196 | ETM_MODE_DATA_TRACE_VAL); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 197 | config->cfg &= ~(BIT(16) | BIT(17)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 198 | |
| 199 | /* Disable all events tracing */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 200 | config->eventctrl0 = 0x0; |
| 201 | config->eventctrl1 = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 202 | |
| 203 | /* Disable timestamp event */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 204 | config->ts_ctrl = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 205 | |
| 206 | /* Disable stalling */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 207 | config->stall_ctrl = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 208 | |
| 209 | /* Reset trace synchronization period to 2^8 = 256 bytes*/ |
| 210 | if (drvdata->syncpr == false) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 211 | config->syncfreq = 0x8; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 212 | |
| 213 | /* |
| 214 | * Enable ViewInst to trace everything with start-stop logic in |
| 215 | * started state. ARM recommends start-stop logic is set before |
| 216 | * each trace run. |
| 217 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 218 | config->vinst_ctrl |= BIT(0); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 219 | if (drvdata->nr_addr_cmp == true) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 220 | config->mode |= ETM_MODE_VIEWINST_STARTSTOP; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 221 | /* SSSTATUS, bit[9] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 222 | config->vinst_ctrl |= BIT(9); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 223 | } |
| 224 | |
| 225 | /* No address range filtering for ViewInst */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 226 | config->viiectlr = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 227 | |
| 228 | /* No start-stop filtering for ViewInst */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 229 | config->vissctlr = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 230 | |
| 231 | /* Disable seq events */ |
| 232 | for (i = 0; i < drvdata->nrseqstate-1; i++) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 233 | config->seq_ctrl[i] = 0x0; |
| 234 | config->seq_rst = 0x0; |
| 235 | config->seq_state = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 236 | |
| 237 | /* Disable external input events */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 238 | config->ext_inp = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 239 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 240 | config->cntr_idx = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 241 | for (i = 0; i < drvdata->nr_cntr; i++) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 242 | config->cntrldvr[i] = 0x0; |
| 243 | config->cntr_ctrl[i] = 0x0; |
| 244 | config->cntr_val[i] = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 245 | } |
| 246 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 247 | config->res_idx = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 248 | for (i = 0; i < drvdata->nr_resource; i++) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 249 | config->res_ctrl[i] = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 250 | |
| 251 | for (i = 0; i < drvdata->nr_ss_cmp; i++) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 252 | config->ss_ctrl[i] = 0x0; |
| 253 | config->ss_pe_cmp[i] = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 254 | } |
| 255 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 256 | config->addr_idx = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 257 | for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 258 | config->addr_val[i] = 0x0; |
| 259 | config->addr_acc[i] = 0x0; |
| 260 | config->addr_type[i] = ETM_ADDR_TYPE_NONE; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 261 | } |
| 262 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 263 | config->ctxid_idx = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 264 | for (i = 0; i < drvdata->numcidc; i++) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 265 | config->ctxid_pid[i] = 0x0; |
| 266 | config->ctxid_vpid[i] = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 267 | } |
| 268 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 269 | config->ctxid_mask0 = 0x0; |
| 270 | config->ctxid_mask1 = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 271 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 272 | config->vmid_idx = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 273 | for (i = 0; i < drvdata->numvmidc; i++) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 274 | config->vmid_val[i] = 0x0; |
| 275 | config->vmid_mask0 = 0x0; |
| 276 | config->vmid_mask1 = 0x0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 277 | |
| 278 | drvdata->trcid = drvdata->cpu + 1; |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 279 | |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 280 | spin_unlock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 281 | |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 282 | return size; |
| 283 | } |
| 284 | static DEVICE_ATTR_WO(reset); |
| 285 | |
| 286 | static ssize_t mode_show(struct device *dev, |
| 287 | struct device_attribute *attr, |
| 288 | char *buf) |
| 289 | { |
| 290 | unsigned long val; |
| 291 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 292 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 293 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 294 | val = config->mode; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 295 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 296 | } |
| 297 | |
| 298 | static ssize_t mode_store(struct device *dev, |
| 299 | struct device_attribute *attr, |
| 300 | const char *buf, size_t size) |
| 301 | { |
| 302 | unsigned long val, mode; |
| 303 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 304 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 305 | |
| 306 | if (kstrtoul(buf, 16, &val)) |
| 307 | return -EINVAL; |
| 308 | |
| 309 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 310 | config->mode = val & ETMv4_MODE_ALL; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 311 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 312 | if (config->mode & ETM_MODE_EXCLUDE) |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 313 | etm4_set_mode_exclude(drvdata, true); |
| 314 | else |
| 315 | etm4_set_mode_exclude(drvdata, false); |
| 316 | |
| 317 | if (drvdata->instrp0 == true) { |
| 318 | /* start by clearing instruction P0 field */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 319 | config->cfg &= ~(BIT(1) | BIT(2)); |
| 320 | if (config->mode & ETM_MODE_LOAD) |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 321 | /* 0b01 Trace load instructions as P0 instructions */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 322 | config->cfg |= BIT(1); |
| 323 | if (config->mode & ETM_MODE_STORE) |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 324 | /* 0b10 Trace store instructions as P0 instructions */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 325 | config->cfg |= BIT(2); |
| 326 | if (config->mode & ETM_MODE_LOAD_STORE) |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 327 | /* |
| 328 | * 0b11 Trace load and store instructions |
| 329 | * as P0 instructions |
| 330 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 331 | config->cfg |= BIT(1) | BIT(2); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | /* bit[3], Branch broadcast mode */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 335 | if ((config->mode & ETM_MODE_BB) && (drvdata->trcbb == true)) |
| 336 | config->cfg |= BIT(3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 337 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 338 | config->cfg &= ~BIT(3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 339 | |
| 340 | /* bit[4], Cycle counting instruction trace bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 341 | if ((config->mode & ETMv4_MODE_CYCACC) && |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 342 | (drvdata->trccci == true)) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 343 | config->cfg |= BIT(4); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 344 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 345 | config->cfg &= ~BIT(4); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 346 | |
| 347 | /* bit[6], Context ID tracing bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 348 | if ((config->mode & ETMv4_MODE_CTXID) && (drvdata->ctxid_size)) |
| 349 | config->cfg |= BIT(6); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 350 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 351 | config->cfg &= ~BIT(6); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 352 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 353 | if ((config->mode & ETM_MODE_VMID) && (drvdata->vmid_size)) |
| 354 | config->cfg |= BIT(7); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 355 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 356 | config->cfg &= ~BIT(7); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 357 | |
| 358 | /* bits[10:8], Conditional instruction tracing bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 359 | mode = ETM_MODE_COND(config->mode); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 360 | if (drvdata->trccond == true) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 361 | config->cfg &= ~(BIT(8) | BIT(9) | BIT(10)); |
| 362 | config->cfg |= mode << 8; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | /* bit[11], Global timestamp tracing bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 366 | if ((config->mode & ETMv4_MODE_TIMESTAMP) && (drvdata->ts_size)) |
| 367 | config->cfg |= BIT(11); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 368 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 369 | config->cfg &= ~BIT(11); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 370 | |
| 371 | /* bit[12], Return stack enable bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 372 | if ((config->mode & ETM_MODE_RETURNSTACK) && |
| 373 | (drvdata->retstack == true)) |
| 374 | config->cfg |= BIT(12); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 375 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 376 | config->cfg &= ~BIT(12); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 377 | |
| 378 | /* bits[14:13], Q element enable field */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 379 | mode = ETM_MODE_QELEM(config->mode); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 380 | /* start by clearing QE bits */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 381 | config->cfg &= ~(BIT(13) | BIT(14)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 382 | /* if supported, Q elements with instruction counts are enabled */ |
| 383 | if ((mode & BIT(0)) && (drvdata->q_support & BIT(0))) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 384 | config->cfg |= BIT(13); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 385 | /* |
| 386 | * if supported, Q elements with and without instruction |
| 387 | * counts are enabled |
| 388 | */ |
| 389 | if ((mode & BIT(1)) && (drvdata->q_support & BIT(1))) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 390 | config->cfg |= BIT(14); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 391 | |
| 392 | /* bit[11], AMBA Trace Bus (ATB) trigger enable bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 393 | if ((config->mode & ETM_MODE_ATB_TRIGGER) && |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 394 | (drvdata->atbtrig == true)) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 395 | config->eventctrl1 |= BIT(11); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 396 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 397 | config->eventctrl1 &= ~BIT(11); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 398 | |
| 399 | /* bit[12], Low-power state behavior override bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 400 | if ((config->mode & ETM_MODE_LPOVERRIDE) && |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 401 | (drvdata->lpoverride == true)) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 402 | config->eventctrl1 |= BIT(12); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 403 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 404 | config->eventctrl1 &= ~BIT(12); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 405 | |
| 406 | /* bit[8], Instruction stall bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 407 | if (config->mode & ETM_MODE_ISTALL_EN) |
| 408 | config->stall_ctrl |= BIT(8); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 409 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 410 | config->stall_ctrl &= ~BIT(8); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 411 | |
| 412 | /* bit[10], Prioritize instruction trace bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 413 | if (config->mode & ETM_MODE_INSTPRIO) |
| 414 | config->stall_ctrl |= BIT(10); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 415 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 416 | config->stall_ctrl &= ~BIT(10); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 417 | |
| 418 | /* bit[13], Trace overflow prevention bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 419 | if ((config->mode & ETM_MODE_NOOVERFLOW) && |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 420 | (drvdata->nooverflow == true)) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 421 | config->stall_ctrl |= BIT(13); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 422 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 423 | config->stall_ctrl &= ~BIT(13); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 424 | |
| 425 | /* bit[9] Start/stop logic control bit */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 426 | if (config->mode & ETM_MODE_VIEWINST_STARTSTOP) |
| 427 | config->vinst_ctrl |= BIT(9); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 428 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 429 | config->vinst_ctrl &= ~BIT(9); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 430 | |
| 431 | /* bit[10], Whether a trace unit must trace a Reset exception */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 432 | if (config->mode & ETM_MODE_TRACE_RESET) |
| 433 | config->vinst_ctrl |= BIT(10); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 434 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 435 | config->vinst_ctrl &= ~BIT(10); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 436 | |
| 437 | /* bit[11], Whether a trace unit must trace a system error exception */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 438 | if ((config->mode & ETM_MODE_TRACE_ERR) && |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 439 | (drvdata->trc_error == true)) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 440 | config->vinst_ctrl |= BIT(11); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 441 | else |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 442 | config->vinst_ctrl &= ~BIT(11); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 443 | |
Mathieu Poirier | 4f6fce5 | 2016-04-05 11:53:48 -0600 | [diff] [blame] | 444 | if (config->mode & (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER)) |
| 445 | etm4_config_trace_mode(config); |
| 446 | |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 447 | spin_unlock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 448 | |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 449 | return size; |
| 450 | } |
| 451 | static DEVICE_ATTR_RW(mode); |
| 452 | |
| 453 | static ssize_t pe_show(struct device *dev, |
| 454 | struct device_attribute *attr, |
| 455 | char *buf) |
| 456 | { |
| 457 | unsigned long val; |
| 458 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 459 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 460 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 461 | val = config->pe_sel; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 462 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 463 | } |
| 464 | |
| 465 | static ssize_t pe_store(struct device *dev, |
| 466 | struct device_attribute *attr, |
| 467 | const char *buf, size_t size) |
| 468 | { |
| 469 | unsigned long val; |
| 470 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 471 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 472 | |
| 473 | if (kstrtoul(buf, 16, &val)) |
| 474 | return -EINVAL; |
| 475 | |
| 476 | spin_lock(&drvdata->spinlock); |
| 477 | if (val > drvdata->nr_pe) { |
| 478 | spin_unlock(&drvdata->spinlock); |
| 479 | return -EINVAL; |
| 480 | } |
| 481 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 482 | config->pe_sel = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 483 | spin_unlock(&drvdata->spinlock); |
| 484 | return size; |
| 485 | } |
| 486 | static DEVICE_ATTR_RW(pe); |
| 487 | |
| 488 | static ssize_t event_show(struct device *dev, |
| 489 | struct device_attribute *attr, |
| 490 | char *buf) |
| 491 | { |
| 492 | unsigned long val; |
| 493 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 494 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 495 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 496 | val = config->eventctrl0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 497 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 498 | } |
| 499 | |
| 500 | static ssize_t event_store(struct device *dev, |
| 501 | struct device_attribute *attr, |
| 502 | const char *buf, size_t size) |
| 503 | { |
| 504 | unsigned long val; |
| 505 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 506 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 507 | |
| 508 | if (kstrtoul(buf, 16, &val)) |
| 509 | return -EINVAL; |
| 510 | |
| 511 | spin_lock(&drvdata->spinlock); |
| 512 | switch (drvdata->nr_event) { |
| 513 | case 0x0: |
| 514 | /* EVENT0, bits[7:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 515 | config->eventctrl0 = val & 0xFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 516 | break; |
| 517 | case 0x1: |
| 518 | /* EVENT1, bits[15:8] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 519 | config->eventctrl0 = val & 0xFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 520 | break; |
| 521 | case 0x2: |
| 522 | /* EVENT2, bits[23:16] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 523 | config->eventctrl0 = val & 0xFFFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 524 | break; |
| 525 | case 0x3: |
| 526 | /* EVENT3, bits[31:24] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 527 | config->eventctrl0 = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 528 | break; |
| 529 | default: |
| 530 | break; |
| 531 | } |
| 532 | spin_unlock(&drvdata->spinlock); |
| 533 | return size; |
| 534 | } |
| 535 | static DEVICE_ATTR_RW(event); |
| 536 | |
| 537 | static ssize_t event_instren_show(struct device *dev, |
| 538 | struct device_attribute *attr, |
| 539 | char *buf) |
| 540 | { |
| 541 | unsigned long val; |
| 542 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 543 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 544 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 545 | val = BMVAL(config->eventctrl1, 0, 3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 546 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 547 | } |
| 548 | |
| 549 | static ssize_t event_instren_store(struct device *dev, |
| 550 | struct device_attribute *attr, |
| 551 | const char *buf, size_t size) |
| 552 | { |
| 553 | unsigned long val; |
| 554 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 555 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 556 | |
| 557 | if (kstrtoul(buf, 16, &val)) |
| 558 | return -EINVAL; |
| 559 | |
| 560 | spin_lock(&drvdata->spinlock); |
| 561 | /* start by clearing all instruction event enable bits */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 562 | config->eventctrl1 &= ~(BIT(0) | BIT(1) | BIT(2) | BIT(3)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 563 | switch (drvdata->nr_event) { |
| 564 | case 0x0: |
| 565 | /* generate Event element for event 1 */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 566 | config->eventctrl1 |= val & BIT(1); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 567 | break; |
| 568 | case 0x1: |
| 569 | /* generate Event element for event 1 and 2 */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 570 | config->eventctrl1 |= val & (BIT(0) | BIT(1)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 571 | break; |
| 572 | case 0x2: |
| 573 | /* generate Event element for event 1, 2 and 3 */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 574 | config->eventctrl1 |= val & (BIT(0) | BIT(1) | BIT(2)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 575 | break; |
| 576 | case 0x3: |
| 577 | /* generate Event element for all 4 events */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 578 | config->eventctrl1 |= val & 0xF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 579 | break; |
| 580 | default: |
| 581 | break; |
| 582 | } |
| 583 | spin_unlock(&drvdata->spinlock); |
| 584 | return size; |
| 585 | } |
| 586 | static DEVICE_ATTR_RW(event_instren); |
| 587 | |
| 588 | static ssize_t event_ts_show(struct device *dev, |
| 589 | struct device_attribute *attr, |
| 590 | char *buf) |
| 591 | { |
| 592 | unsigned long val; |
| 593 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 594 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 595 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 596 | val = config->ts_ctrl; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 597 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 598 | } |
| 599 | |
| 600 | static ssize_t event_ts_store(struct device *dev, |
| 601 | struct device_attribute *attr, |
| 602 | const char *buf, size_t size) |
| 603 | { |
| 604 | unsigned long val; |
| 605 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 606 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 607 | |
| 608 | if (kstrtoul(buf, 16, &val)) |
| 609 | return -EINVAL; |
| 610 | if (!drvdata->ts_size) |
| 611 | return -EINVAL; |
| 612 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 613 | config->ts_ctrl = val & ETMv4_EVENT_MASK; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 614 | return size; |
| 615 | } |
| 616 | static DEVICE_ATTR_RW(event_ts); |
| 617 | |
| 618 | static ssize_t syncfreq_show(struct device *dev, |
| 619 | struct device_attribute *attr, |
| 620 | char *buf) |
| 621 | { |
| 622 | unsigned long val; |
| 623 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 624 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 625 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 626 | val = config->syncfreq; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 627 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 628 | } |
| 629 | |
| 630 | static ssize_t syncfreq_store(struct device *dev, |
| 631 | struct device_attribute *attr, |
| 632 | const char *buf, size_t size) |
| 633 | { |
| 634 | unsigned long val; |
| 635 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 636 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 637 | |
| 638 | if (kstrtoul(buf, 16, &val)) |
| 639 | return -EINVAL; |
| 640 | if (drvdata->syncpr == true) |
| 641 | return -EINVAL; |
| 642 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 643 | config->syncfreq = val & ETMv4_SYNC_MASK; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 644 | return size; |
| 645 | } |
| 646 | static DEVICE_ATTR_RW(syncfreq); |
| 647 | |
| 648 | static ssize_t cyc_threshold_show(struct device *dev, |
| 649 | struct device_attribute *attr, |
| 650 | char *buf) |
| 651 | { |
| 652 | unsigned long val; |
| 653 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 654 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 655 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 656 | val = config->ccctlr; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 657 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 658 | } |
| 659 | |
| 660 | static ssize_t cyc_threshold_store(struct device *dev, |
| 661 | struct device_attribute *attr, |
| 662 | const char *buf, size_t size) |
| 663 | { |
| 664 | unsigned long val; |
| 665 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 666 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 667 | |
| 668 | if (kstrtoul(buf, 16, &val)) |
| 669 | return -EINVAL; |
| 670 | if (val < drvdata->ccitmin) |
| 671 | return -EINVAL; |
| 672 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 673 | config->ccctlr = val & ETM_CYC_THRESHOLD_MASK; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 674 | return size; |
| 675 | } |
| 676 | static DEVICE_ATTR_RW(cyc_threshold); |
| 677 | |
| 678 | static ssize_t bb_ctrl_show(struct device *dev, |
| 679 | struct device_attribute *attr, |
| 680 | char *buf) |
| 681 | { |
| 682 | unsigned long val; |
| 683 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 684 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 685 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 686 | val = config->bb_ctrl; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 687 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 688 | } |
| 689 | |
| 690 | static ssize_t bb_ctrl_store(struct device *dev, |
| 691 | struct device_attribute *attr, |
| 692 | const char *buf, size_t size) |
| 693 | { |
| 694 | unsigned long val; |
| 695 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 696 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 697 | |
| 698 | if (kstrtoul(buf, 16, &val)) |
| 699 | return -EINVAL; |
| 700 | if (drvdata->trcbb == false) |
| 701 | return -EINVAL; |
| 702 | if (!drvdata->nr_addr_cmp) |
| 703 | return -EINVAL; |
| 704 | /* |
| 705 | * Bit[7:0] selects which address range comparator is used for |
| 706 | * branch broadcast control. |
| 707 | */ |
| 708 | if (BMVAL(val, 0, 7) > drvdata->nr_addr_cmp) |
| 709 | return -EINVAL; |
| 710 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 711 | config->bb_ctrl = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 712 | return size; |
| 713 | } |
| 714 | static DEVICE_ATTR_RW(bb_ctrl); |
| 715 | |
| 716 | static ssize_t event_vinst_show(struct device *dev, |
| 717 | struct device_attribute *attr, |
| 718 | char *buf) |
| 719 | { |
| 720 | unsigned long val; |
| 721 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 722 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 723 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 724 | val = config->vinst_ctrl & ETMv4_EVENT_MASK; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 725 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 726 | } |
| 727 | |
| 728 | static ssize_t event_vinst_store(struct device *dev, |
| 729 | struct device_attribute *attr, |
| 730 | const char *buf, size_t size) |
| 731 | { |
| 732 | unsigned long val; |
| 733 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 734 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 735 | |
| 736 | if (kstrtoul(buf, 16, &val)) |
| 737 | return -EINVAL; |
| 738 | |
| 739 | spin_lock(&drvdata->spinlock); |
| 740 | val &= ETMv4_EVENT_MASK; |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 741 | config->vinst_ctrl &= ~ETMv4_EVENT_MASK; |
| 742 | config->vinst_ctrl |= val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 743 | spin_unlock(&drvdata->spinlock); |
| 744 | return size; |
| 745 | } |
| 746 | static DEVICE_ATTR_RW(event_vinst); |
| 747 | |
| 748 | static ssize_t s_exlevel_vinst_show(struct device *dev, |
| 749 | struct device_attribute *attr, |
| 750 | char *buf) |
| 751 | { |
| 752 | unsigned long val; |
| 753 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 754 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 755 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 756 | val = BMVAL(config->vinst_ctrl, 16, 19); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 757 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 758 | } |
| 759 | |
| 760 | static ssize_t s_exlevel_vinst_store(struct device *dev, |
| 761 | struct device_attribute *attr, |
| 762 | const char *buf, size_t size) |
| 763 | { |
| 764 | unsigned long val; |
| 765 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 766 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 767 | |
| 768 | if (kstrtoul(buf, 16, &val)) |
| 769 | return -EINVAL; |
| 770 | |
| 771 | spin_lock(&drvdata->spinlock); |
| 772 | /* clear all EXLEVEL_S bits (bit[18] is never implemented) */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 773 | config->vinst_ctrl &= ~(BIT(16) | BIT(17) | BIT(19)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 774 | /* enable instruction tracing for corresponding exception level */ |
| 775 | val &= drvdata->s_ex_level; |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 776 | config->vinst_ctrl |= (val << 16); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 777 | spin_unlock(&drvdata->spinlock); |
| 778 | return size; |
| 779 | } |
| 780 | static DEVICE_ATTR_RW(s_exlevel_vinst); |
| 781 | |
| 782 | static ssize_t ns_exlevel_vinst_show(struct device *dev, |
| 783 | struct device_attribute *attr, |
| 784 | char *buf) |
| 785 | { |
| 786 | unsigned long val; |
| 787 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 788 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 789 | |
| 790 | /* EXLEVEL_NS, bits[23:20] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 791 | val = BMVAL(config->vinst_ctrl, 20, 23); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 792 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 793 | } |
| 794 | |
| 795 | static ssize_t ns_exlevel_vinst_store(struct device *dev, |
| 796 | struct device_attribute *attr, |
| 797 | const char *buf, size_t size) |
| 798 | { |
| 799 | unsigned long val; |
| 800 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 801 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 802 | |
| 803 | if (kstrtoul(buf, 16, &val)) |
| 804 | return -EINVAL; |
| 805 | |
| 806 | spin_lock(&drvdata->spinlock); |
| 807 | /* clear EXLEVEL_NS bits (bit[23] is never implemented */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 808 | config->vinst_ctrl &= ~(BIT(20) | BIT(21) | BIT(22)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 809 | /* enable instruction tracing for corresponding exception level */ |
| 810 | val &= drvdata->ns_ex_level; |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 811 | config->vinst_ctrl |= (val << 20); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 812 | spin_unlock(&drvdata->spinlock); |
| 813 | return size; |
| 814 | } |
| 815 | static DEVICE_ATTR_RW(ns_exlevel_vinst); |
| 816 | |
| 817 | static ssize_t addr_idx_show(struct device *dev, |
| 818 | struct device_attribute *attr, |
| 819 | char *buf) |
| 820 | { |
| 821 | unsigned long val; |
| 822 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 823 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 824 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 825 | val = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 826 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 827 | } |
| 828 | |
| 829 | static ssize_t addr_idx_store(struct device *dev, |
| 830 | struct device_attribute *attr, |
| 831 | const char *buf, size_t size) |
| 832 | { |
| 833 | unsigned long val; |
| 834 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 835 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 836 | |
| 837 | if (kstrtoul(buf, 16, &val)) |
| 838 | return -EINVAL; |
| 839 | if (val >= drvdata->nr_addr_cmp * 2) |
| 840 | return -EINVAL; |
| 841 | |
| 842 | /* |
| 843 | * Use spinlock to ensure index doesn't change while it gets |
| 844 | * dereferenced multiple times within a spinlock block elsewhere. |
| 845 | */ |
| 846 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 847 | config->addr_idx = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 848 | spin_unlock(&drvdata->spinlock); |
| 849 | return size; |
| 850 | } |
| 851 | static DEVICE_ATTR_RW(addr_idx); |
| 852 | |
| 853 | static ssize_t addr_instdatatype_show(struct device *dev, |
| 854 | struct device_attribute *attr, |
| 855 | char *buf) |
| 856 | { |
| 857 | ssize_t len; |
| 858 | u8 val, idx; |
| 859 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 860 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 861 | |
| 862 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 863 | idx = config->addr_idx; |
| 864 | val = BMVAL(config->addr_acc[idx], 0, 1); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 865 | len = scnprintf(buf, PAGE_SIZE, "%s\n", |
| 866 | val == ETM_INSTR_ADDR ? "instr" : |
| 867 | (val == ETM_DATA_LOAD_ADDR ? "data_load" : |
| 868 | (val == ETM_DATA_STORE_ADDR ? "data_store" : |
| 869 | "data_load_store"))); |
| 870 | spin_unlock(&drvdata->spinlock); |
| 871 | return len; |
| 872 | } |
| 873 | |
| 874 | static ssize_t addr_instdatatype_store(struct device *dev, |
| 875 | struct device_attribute *attr, |
| 876 | const char *buf, size_t size) |
| 877 | { |
| 878 | u8 idx; |
| 879 | char str[20] = ""; |
| 880 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 881 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 882 | |
| 883 | if (strlen(buf) >= 20) |
| 884 | return -EINVAL; |
| 885 | if (sscanf(buf, "%s", str) != 1) |
| 886 | return -EINVAL; |
| 887 | |
| 888 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 889 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 890 | if (!strcmp(str, "instr")) |
| 891 | /* TYPE, bits[1:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 892 | config->addr_acc[idx] &= ~(BIT(0) | BIT(1)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 893 | |
| 894 | spin_unlock(&drvdata->spinlock); |
| 895 | return size; |
| 896 | } |
| 897 | static DEVICE_ATTR_RW(addr_instdatatype); |
| 898 | |
| 899 | static ssize_t addr_single_show(struct device *dev, |
| 900 | struct device_attribute *attr, |
| 901 | char *buf) |
| 902 | { |
| 903 | u8 idx; |
| 904 | unsigned long val; |
| 905 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 906 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 907 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 908 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 909 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 910 | if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE || |
| 911 | config->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 912 | spin_unlock(&drvdata->spinlock); |
| 913 | return -EPERM; |
| 914 | } |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 915 | val = (unsigned long)config->addr_val[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 916 | spin_unlock(&drvdata->spinlock); |
| 917 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 918 | } |
| 919 | |
| 920 | static ssize_t addr_single_store(struct device *dev, |
| 921 | struct device_attribute *attr, |
| 922 | const char *buf, size_t size) |
| 923 | { |
| 924 | u8 idx; |
| 925 | unsigned long val; |
| 926 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 927 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 928 | |
| 929 | if (kstrtoul(buf, 16, &val)) |
| 930 | return -EINVAL; |
| 931 | |
| 932 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 933 | idx = config->addr_idx; |
| 934 | if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE || |
| 935 | config->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 936 | spin_unlock(&drvdata->spinlock); |
| 937 | return -EPERM; |
| 938 | } |
| 939 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 940 | config->addr_val[idx] = (u64)val; |
| 941 | config->addr_type[idx] = ETM_ADDR_TYPE_SINGLE; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 942 | spin_unlock(&drvdata->spinlock); |
| 943 | return size; |
| 944 | } |
| 945 | static DEVICE_ATTR_RW(addr_single); |
| 946 | |
| 947 | static ssize_t addr_range_show(struct device *dev, |
| 948 | struct device_attribute *attr, |
| 949 | char *buf) |
| 950 | { |
| 951 | u8 idx; |
| 952 | unsigned long val1, val2; |
| 953 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 954 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 955 | |
| 956 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 957 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 958 | if (idx % 2 != 0) { |
| 959 | spin_unlock(&drvdata->spinlock); |
| 960 | return -EPERM; |
| 961 | } |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 962 | if (!((config->addr_type[idx] == ETM_ADDR_TYPE_NONE && |
| 963 | config->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) || |
| 964 | (config->addr_type[idx] == ETM_ADDR_TYPE_RANGE && |
| 965 | config->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 966 | spin_unlock(&drvdata->spinlock); |
| 967 | return -EPERM; |
| 968 | } |
| 969 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 970 | val1 = (unsigned long)config->addr_val[idx]; |
| 971 | val2 = (unsigned long)config->addr_val[idx + 1]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 972 | spin_unlock(&drvdata->spinlock); |
| 973 | return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2); |
| 974 | } |
| 975 | |
| 976 | static ssize_t addr_range_store(struct device *dev, |
| 977 | struct device_attribute *attr, |
| 978 | const char *buf, size_t size) |
| 979 | { |
| 980 | u8 idx; |
| 981 | unsigned long val1, val2; |
| 982 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 983 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 984 | |
| 985 | if (sscanf(buf, "%lx %lx", &val1, &val2) != 2) |
| 986 | return -EINVAL; |
| 987 | /* lower address comparator cannot have a higher address value */ |
| 988 | if (val1 > val2) |
| 989 | return -EINVAL; |
| 990 | |
| 991 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 992 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 993 | if (idx % 2 != 0) { |
| 994 | spin_unlock(&drvdata->spinlock); |
| 995 | return -EPERM; |
| 996 | } |
| 997 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 998 | if (!((config->addr_type[idx] == ETM_ADDR_TYPE_NONE && |
| 999 | config->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) || |
| 1000 | (config->addr_type[idx] == ETM_ADDR_TYPE_RANGE && |
| 1001 | config->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1002 | spin_unlock(&drvdata->spinlock); |
| 1003 | return -EPERM; |
| 1004 | } |
| 1005 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1006 | config->addr_val[idx] = (u64)val1; |
| 1007 | config->addr_type[idx] = ETM_ADDR_TYPE_RANGE; |
| 1008 | config->addr_val[idx + 1] = (u64)val2; |
| 1009 | config->addr_type[idx + 1] = ETM_ADDR_TYPE_RANGE; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1010 | /* |
| 1011 | * Program include or exclude control bits for vinst or vdata |
| 1012 | * whenever we change addr comparators to ETM_ADDR_TYPE_RANGE |
| 1013 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1014 | if (config->mode & ETM_MODE_EXCLUDE) |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1015 | etm4_set_mode_exclude(drvdata, true); |
| 1016 | else |
| 1017 | etm4_set_mode_exclude(drvdata, false); |
| 1018 | |
| 1019 | spin_unlock(&drvdata->spinlock); |
| 1020 | return size; |
| 1021 | } |
| 1022 | static DEVICE_ATTR_RW(addr_range); |
| 1023 | |
| 1024 | static ssize_t addr_start_show(struct device *dev, |
| 1025 | struct device_attribute *attr, |
| 1026 | char *buf) |
| 1027 | { |
| 1028 | u8 idx; |
| 1029 | unsigned long val; |
| 1030 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1031 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1032 | |
| 1033 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1034 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1035 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1036 | if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE || |
| 1037 | config->addr_type[idx] == ETM_ADDR_TYPE_START)) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1038 | spin_unlock(&drvdata->spinlock); |
| 1039 | return -EPERM; |
| 1040 | } |
| 1041 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1042 | val = (unsigned long)config->addr_val[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1043 | spin_unlock(&drvdata->spinlock); |
| 1044 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1045 | } |
| 1046 | |
| 1047 | static ssize_t addr_start_store(struct device *dev, |
| 1048 | struct device_attribute *attr, |
| 1049 | const char *buf, size_t size) |
| 1050 | { |
| 1051 | u8 idx; |
| 1052 | unsigned long val; |
| 1053 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1054 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1055 | |
| 1056 | if (kstrtoul(buf, 16, &val)) |
| 1057 | return -EINVAL; |
| 1058 | |
| 1059 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1060 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1061 | if (!drvdata->nr_addr_cmp) { |
| 1062 | spin_unlock(&drvdata->spinlock); |
| 1063 | return -EINVAL; |
| 1064 | } |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1065 | if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE || |
| 1066 | config->addr_type[idx] == ETM_ADDR_TYPE_START)) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1067 | spin_unlock(&drvdata->spinlock); |
| 1068 | return -EPERM; |
| 1069 | } |
| 1070 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1071 | config->addr_val[idx] = (u64)val; |
| 1072 | config->addr_type[idx] = ETM_ADDR_TYPE_START; |
| 1073 | config->vissctlr |= BIT(idx); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1074 | /* SSSTATUS, bit[9] - turn on start/stop logic */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1075 | config->vinst_ctrl |= BIT(9); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1076 | spin_unlock(&drvdata->spinlock); |
| 1077 | return size; |
| 1078 | } |
| 1079 | static DEVICE_ATTR_RW(addr_start); |
| 1080 | |
| 1081 | static ssize_t addr_stop_show(struct device *dev, |
| 1082 | struct device_attribute *attr, |
| 1083 | char *buf) |
| 1084 | { |
| 1085 | u8 idx; |
| 1086 | unsigned long val; |
| 1087 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1088 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1089 | |
| 1090 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1091 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1092 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1093 | if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE || |
| 1094 | config->addr_type[idx] == ETM_ADDR_TYPE_STOP)) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1095 | spin_unlock(&drvdata->spinlock); |
| 1096 | return -EPERM; |
| 1097 | } |
| 1098 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1099 | val = (unsigned long)config->addr_val[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1100 | spin_unlock(&drvdata->spinlock); |
| 1101 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1102 | } |
| 1103 | |
| 1104 | static ssize_t addr_stop_store(struct device *dev, |
| 1105 | struct device_attribute *attr, |
| 1106 | const char *buf, size_t size) |
| 1107 | { |
| 1108 | u8 idx; |
| 1109 | unsigned long val; |
| 1110 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1111 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1112 | |
| 1113 | if (kstrtoul(buf, 16, &val)) |
| 1114 | return -EINVAL; |
| 1115 | |
| 1116 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1117 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1118 | if (!drvdata->nr_addr_cmp) { |
| 1119 | spin_unlock(&drvdata->spinlock); |
| 1120 | return -EINVAL; |
| 1121 | } |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1122 | if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE || |
| 1123 | config->addr_type[idx] == ETM_ADDR_TYPE_STOP)) { |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1124 | spin_unlock(&drvdata->spinlock); |
| 1125 | return -EPERM; |
| 1126 | } |
| 1127 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1128 | config->addr_val[idx] = (u64)val; |
| 1129 | config->addr_type[idx] = ETM_ADDR_TYPE_STOP; |
| 1130 | config->vissctlr |= BIT(idx + 16); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1131 | /* SSSTATUS, bit[9] - turn on start/stop logic */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1132 | config->vinst_ctrl |= BIT(9); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1133 | spin_unlock(&drvdata->spinlock); |
| 1134 | return size; |
| 1135 | } |
| 1136 | static DEVICE_ATTR_RW(addr_stop); |
| 1137 | |
| 1138 | static ssize_t addr_ctxtype_show(struct device *dev, |
| 1139 | struct device_attribute *attr, |
| 1140 | char *buf) |
| 1141 | { |
| 1142 | ssize_t len; |
| 1143 | u8 idx, val; |
| 1144 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1145 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1146 | |
| 1147 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1148 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1149 | /* CONTEXTTYPE, bits[3:2] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1150 | val = BMVAL(config->addr_acc[idx], 2, 3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1151 | len = scnprintf(buf, PAGE_SIZE, "%s\n", val == ETM_CTX_NONE ? "none" : |
| 1152 | (val == ETM_CTX_CTXID ? "ctxid" : |
| 1153 | (val == ETM_CTX_VMID ? "vmid" : "all"))); |
| 1154 | spin_unlock(&drvdata->spinlock); |
| 1155 | return len; |
| 1156 | } |
| 1157 | |
| 1158 | static ssize_t addr_ctxtype_store(struct device *dev, |
| 1159 | struct device_attribute *attr, |
| 1160 | const char *buf, size_t size) |
| 1161 | { |
| 1162 | u8 idx; |
| 1163 | char str[10] = ""; |
| 1164 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1165 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1166 | |
| 1167 | if (strlen(buf) >= 10) |
| 1168 | return -EINVAL; |
| 1169 | if (sscanf(buf, "%s", str) != 1) |
| 1170 | return -EINVAL; |
| 1171 | |
| 1172 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1173 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1174 | if (!strcmp(str, "none")) |
| 1175 | /* start by clearing context type bits */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1176 | config->addr_acc[idx] &= ~(BIT(2) | BIT(3)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1177 | else if (!strcmp(str, "ctxid")) { |
| 1178 | /* 0b01 The trace unit performs a Context ID */ |
| 1179 | if (drvdata->numcidc) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1180 | config->addr_acc[idx] |= BIT(2); |
| 1181 | config->addr_acc[idx] &= ~BIT(3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1182 | } |
| 1183 | } else if (!strcmp(str, "vmid")) { |
| 1184 | /* 0b10 The trace unit performs a VMID */ |
| 1185 | if (drvdata->numvmidc) { |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1186 | config->addr_acc[idx] &= ~BIT(2); |
| 1187 | config->addr_acc[idx] |= BIT(3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1188 | } |
| 1189 | } else if (!strcmp(str, "all")) { |
| 1190 | /* |
| 1191 | * 0b11 The trace unit performs a Context ID |
| 1192 | * comparison and a VMID |
| 1193 | */ |
| 1194 | if (drvdata->numcidc) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1195 | config->addr_acc[idx] |= BIT(2); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1196 | if (drvdata->numvmidc) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1197 | config->addr_acc[idx] |= BIT(3); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1198 | } |
| 1199 | spin_unlock(&drvdata->spinlock); |
| 1200 | return size; |
| 1201 | } |
| 1202 | static DEVICE_ATTR_RW(addr_ctxtype); |
| 1203 | |
| 1204 | static ssize_t addr_context_show(struct device *dev, |
| 1205 | struct device_attribute *attr, |
| 1206 | char *buf) |
| 1207 | { |
| 1208 | u8 idx; |
| 1209 | unsigned long val; |
| 1210 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1211 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1212 | |
| 1213 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1214 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1215 | /* context ID comparator bits[6:4] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1216 | val = BMVAL(config->addr_acc[idx], 4, 6); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1217 | spin_unlock(&drvdata->spinlock); |
| 1218 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1219 | } |
| 1220 | |
| 1221 | static ssize_t addr_context_store(struct device *dev, |
| 1222 | struct device_attribute *attr, |
| 1223 | const char *buf, size_t size) |
| 1224 | { |
| 1225 | u8 idx; |
| 1226 | unsigned long val; |
| 1227 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1228 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1229 | |
| 1230 | if (kstrtoul(buf, 16, &val)) |
| 1231 | return -EINVAL; |
| 1232 | if ((drvdata->numcidc <= 1) && (drvdata->numvmidc <= 1)) |
| 1233 | return -EINVAL; |
| 1234 | if (val >= (drvdata->numcidc >= drvdata->numvmidc ? |
| 1235 | drvdata->numcidc : drvdata->numvmidc)) |
| 1236 | return -EINVAL; |
| 1237 | |
| 1238 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1239 | idx = config->addr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1240 | /* clear context ID comparator bits[6:4] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1241 | config->addr_acc[idx] &= ~(BIT(4) | BIT(5) | BIT(6)); |
| 1242 | config->addr_acc[idx] |= (val << 4); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1243 | spin_unlock(&drvdata->spinlock); |
| 1244 | return size; |
| 1245 | } |
| 1246 | static DEVICE_ATTR_RW(addr_context); |
| 1247 | |
| 1248 | static ssize_t seq_idx_show(struct device *dev, |
| 1249 | struct device_attribute *attr, |
| 1250 | char *buf) |
| 1251 | { |
| 1252 | unsigned long val; |
| 1253 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1254 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1255 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1256 | val = config->seq_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1257 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1258 | } |
| 1259 | |
| 1260 | static ssize_t seq_idx_store(struct device *dev, |
| 1261 | struct device_attribute *attr, |
| 1262 | const char *buf, size_t size) |
| 1263 | { |
| 1264 | unsigned long val; |
| 1265 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1266 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1267 | |
| 1268 | if (kstrtoul(buf, 16, &val)) |
| 1269 | return -EINVAL; |
| 1270 | if (val >= drvdata->nrseqstate - 1) |
| 1271 | return -EINVAL; |
| 1272 | |
| 1273 | /* |
| 1274 | * Use spinlock to ensure index doesn't change while it gets |
| 1275 | * dereferenced multiple times within a spinlock block elsewhere. |
| 1276 | */ |
| 1277 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1278 | config->seq_idx = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1279 | spin_unlock(&drvdata->spinlock); |
| 1280 | return size; |
| 1281 | } |
| 1282 | static DEVICE_ATTR_RW(seq_idx); |
| 1283 | |
| 1284 | static ssize_t seq_state_show(struct device *dev, |
| 1285 | struct device_attribute *attr, |
| 1286 | char *buf) |
| 1287 | { |
| 1288 | unsigned long val; |
| 1289 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1290 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1291 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1292 | val = config->seq_state; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1293 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1294 | } |
| 1295 | |
| 1296 | static ssize_t seq_state_store(struct device *dev, |
| 1297 | struct device_attribute *attr, |
| 1298 | const char *buf, size_t size) |
| 1299 | { |
| 1300 | unsigned long val; |
| 1301 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1302 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1303 | |
| 1304 | if (kstrtoul(buf, 16, &val)) |
| 1305 | return -EINVAL; |
| 1306 | if (val >= drvdata->nrseqstate) |
| 1307 | return -EINVAL; |
| 1308 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1309 | config->seq_state = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1310 | return size; |
| 1311 | } |
| 1312 | static DEVICE_ATTR_RW(seq_state); |
| 1313 | |
| 1314 | static ssize_t seq_event_show(struct device *dev, |
| 1315 | struct device_attribute *attr, |
| 1316 | char *buf) |
| 1317 | { |
| 1318 | u8 idx; |
| 1319 | unsigned long val; |
| 1320 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1321 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1322 | |
| 1323 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1324 | idx = config->seq_idx; |
| 1325 | val = config->seq_ctrl[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1326 | spin_unlock(&drvdata->spinlock); |
| 1327 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1328 | } |
| 1329 | |
| 1330 | static ssize_t seq_event_store(struct device *dev, |
| 1331 | struct device_attribute *attr, |
| 1332 | const char *buf, size_t size) |
| 1333 | { |
| 1334 | u8 idx; |
| 1335 | unsigned long val; |
| 1336 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1337 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1338 | |
| 1339 | if (kstrtoul(buf, 16, &val)) |
| 1340 | return -EINVAL; |
| 1341 | |
| 1342 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1343 | idx = config->seq_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1344 | /* RST, bits[7:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1345 | config->seq_ctrl[idx] = val & 0xFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1346 | spin_unlock(&drvdata->spinlock); |
| 1347 | return size; |
| 1348 | } |
| 1349 | static DEVICE_ATTR_RW(seq_event); |
| 1350 | |
| 1351 | static ssize_t seq_reset_event_show(struct device *dev, |
| 1352 | struct device_attribute *attr, |
| 1353 | char *buf) |
| 1354 | { |
| 1355 | unsigned long val; |
| 1356 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1357 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1358 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1359 | val = config->seq_rst; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1360 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1361 | } |
| 1362 | |
| 1363 | static ssize_t seq_reset_event_store(struct device *dev, |
| 1364 | struct device_attribute *attr, |
| 1365 | const char *buf, size_t size) |
| 1366 | { |
| 1367 | unsigned long val; |
| 1368 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1369 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1370 | |
| 1371 | if (kstrtoul(buf, 16, &val)) |
| 1372 | return -EINVAL; |
| 1373 | if (!(drvdata->nrseqstate)) |
| 1374 | return -EINVAL; |
| 1375 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1376 | config->seq_rst = val & ETMv4_EVENT_MASK; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1377 | return size; |
| 1378 | } |
| 1379 | static DEVICE_ATTR_RW(seq_reset_event); |
| 1380 | |
| 1381 | static ssize_t cntr_idx_show(struct device *dev, |
| 1382 | struct device_attribute *attr, |
| 1383 | char *buf) |
| 1384 | { |
| 1385 | unsigned long val; |
| 1386 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1387 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1388 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1389 | val = config->cntr_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1390 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1391 | } |
| 1392 | |
| 1393 | static ssize_t cntr_idx_store(struct device *dev, |
| 1394 | struct device_attribute *attr, |
| 1395 | const char *buf, size_t size) |
| 1396 | { |
| 1397 | unsigned long val; |
| 1398 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1399 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1400 | |
| 1401 | if (kstrtoul(buf, 16, &val)) |
| 1402 | return -EINVAL; |
| 1403 | if (val >= drvdata->nr_cntr) |
| 1404 | return -EINVAL; |
| 1405 | |
| 1406 | /* |
| 1407 | * Use spinlock to ensure index doesn't change while it gets |
| 1408 | * dereferenced multiple times within a spinlock block elsewhere. |
| 1409 | */ |
| 1410 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1411 | config->cntr_idx = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1412 | spin_unlock(&drvdata->spinlock); |
| 1413 | return size; |
| 1414 | } |
| 1415 | static DEVICE_ATTR_RW(cntr_idx); |
| 1416 | |
| 1417 | static ssize_t cntrldvr_show(struct device *dev, |
| 1418 | struct device_attribute *attr, |
| 1419 | char *buf) |
| 1420 | { |
| 1421 | u8 idx; |
| 1422 | unsigned long val; |
| 1423 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1424 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1425 | |
| 1426 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1427 | idx = config->cntr_idx; |
| 1428 | val = config->cntrldvr[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1429 | spin_unlock(&drvdata->spinlock); |
| 1430 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1431 | } |
| 1432 | |
| 1433 | static ssize_t cntrldvr_store(struct device *dev, |
| 1434 | struct device_attribute *attr, |
| 1435 | const char *buf, size_t size) |
| 1436 | { |
| 1437 | u8 idx; |
| 1438 | unsigned long val; |
| 1439 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1440 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1441 | |
| 1442 | if (kstrtoul(buf, 16, &val)) |
| 1443 | return -EINVAL; |
| 1444 | if (val > ETM_CNTR_MAX_VAL) |
| 1445 | return -EINVAL; |
| 1446 | |
| 1447 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1448 | idx = config->cntr_idx; |
| 1449 | config->cntrldvr[idx] = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1450 | spin_unlock(&drvdata->spinlock); |
| 1451 | return size; |
| 1452 | } |
| 1453 | static DEVICE_ATTR_RW(cntrldvr); |
| 1454 | |
| 1455 | static ssize_t cntr_val_show(struct device *dev, |
| 1456 | struct device_attribute *attr, |
| 1457 | char *buf) |
| 1458 | { |
| 1459 | u8 idx; |
| 1460 | unsigned long val; |
| 1461 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1462 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1463 | |
| 1464 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1465 | idx = config->cntr_idx; |
| 1466 | val = config->cntr_val[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1467 | spin_unlock(&drvdata->spinlock); |
| 1468 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1469 | } |
| 1470 | |
| 1471 | static ssize_t cntr_val_store(struct device *dev, |
| 1472 | struct device_attribute *attr, |
| 1473 | const char *buf, size_t size) |
| 1474 | { |
| 1475 | u8 idx; |
| 1476 | unsigned long val; |
| 1477 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1478 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1479 | |
| 1480 | if (kstrtoul(buf, 16, &val)) |
| 1481 | return -EINVAL; |
| 1482 | if (val > ETM_CNTR_MAX_VAL) |
| 1483 | return -EINVAL; |
| 1484 | |
| 1485 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1486 | idx = config->cntr_idx; |
| 1487 | config->cntr_val[idx] = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1488 | spin_unlock(&drvdata->spinlock); |
| 1489 | return size; |
| 1490 | } |
| 1491 | static DEVICE_ATTR_RW(cntr_val); |
| 1492 | |
| 1493 | static ssize_t cntr_ctrl_show(struct device *dev, |
| 1494 | struct device_attribute *attr, |
| 1495 | char *buf) |
| 1496 | { |
| 1497 | u8 idx; |
| 1498 | unsigned long val; |
| 1499 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1500 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1501 | |
| 1502 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1503 | idx = config->cntr_idx; |
| 1504 | val = config->cntr_ctrl[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1505 | spin_unlock(&drvdata->spinlock); |
| 1506 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1507 | } |
| 1508 | |
| 1509 | static ssize_t cntr_ctrl_store(struct device *dev, |
| 1510 | struct device_attribute *attr, |
| 1511 | const char *buf, size_t size) |
| 1512 | { |
| 1513 | u8 idx; |
| 1514 | unsigned long val; |
| 1515 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1516 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1517 | |
| 1518 | if (kstrtoul(buf, 16, &val)) |
| 1519 | return -EINVAL; |
| 1520 | |
| 1521 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1522 | idx = config->cntr_idx; |
| 1523 | config->cntr_ctrl[idx] = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1524 | spin_unlock(&drvdata->spinlock); |
| 1525 | return size; |
| 1526 | } |
| 1527 | static DEVICE_ATTR_RW(cntr_ctrl); |
| 1528 | |
| 1529 | static ssize_t res_idx_show(struct device *dev, |
| 1530 | struct device_attribute *attr, |
| 1531 | char *buf) |
| 1532 | { |
| 1533 | unsigned long val; |
| 1534 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1535 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1536 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1537 | val = config->res_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1538 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1539 | } |
| 1540 | |
| 1541 | static ssize_t res_idx_store(struct device *dev, |
| 1542 | struct device_attribute *attr, |
| 1543 | const char *buf, size_t size) |
| 1544 | { |
| 1545 | unsigned long val; |
| 1546 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1547 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1548 | |
| 1549 | if (kstrtoul(buf, 16, &val)) |
| 1550 | return -EINVAL; |
| 1551 | /* Resource selector pair 0 is always implemented and reserved */ |
| 1552 | if ((val == 0) || (val >= drvdata->nr_resource)) |
| 1553 | return -EINVAL; |
| 1554 | |
| 1555 | /* |
| 1556 | * Use spinlock to ensure index doesn't change while it gets |
| 1557 | * dereferenced multiple times within a spinlock block elsewhere. |
| 1558 | */ |
| 1559 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1560 | config->res_idx = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1561 | spin_unlock(&drvdata->spinlock); |
| 1562 | return size; |
| 1563 | } |
| 1564 | static DEVICE_ATTR_RW(res_idx); |
| 1565 | |
| 1566 | static ssize_t res_ctrl_show(struct device *dev, |
| 1567 | struct device_attribute *attr, |
| 1568 | char *buf) |
| 1569 | { |
| 1570 | u8 idx; |
| 1571 | unsigned long val; |
| 1572 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1573 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1574 | |
| 1575 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1576 | idx = config->res_idx; |
| 1577 | val = config->res_ctrl[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1578 | spin_unlock(&drvdata->spinlock); |
| 1579 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1580 | } |
| 1581 | |
| 1582 | static ssize_t res_ctrl_store(struct device *dev, |
| 1583 | struct device_attribute *attr, |
| 1584 | const char *buf, size_t size) |
| 1585 | { |
| 1586 | u8 idx; |
| 1587 | unsigned long val; |
| 1588 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1589 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1590 | |
| 1591 | if (kstrtoul(buf, 16, &val)) |
| 1592 | return -EINVAL; |
| 1593 | |
| 1594 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1595 | idx = config->res_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1596 | /* For odd idx pair inversal bit is RES0 */ |
| 1597 | if (idx % 2 != 0) |
| 1598 | /* PAIRINV, bit[21] */ |
| 1599 | val &= ~BIT(21); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1600 | config->res_ctrl[idx] = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1601 | spin_unlock(&drvdata->spinlock); |
| 1602 | return size; |
| 1603 | } |
| 1604 | static DEVICE_ATTR_RW(res_ctrl); |
| 1605 | |
| 1606 | static ssize_t ctxid_idx_show(struct device *dev, |
| 1607 | struct device_attribute *attr, |
| 1608 | char *buf) |
| 1609 | { |
| 1610 | unsigned long val; |
| 1611 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1612 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1613 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1614 | val = config->ctxid_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1615 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1616 | } |
| 1617 | |
| 1618 | static ssize_t ctxid_idx_store(struct device *dev, |
| 1619 | struct device_attribute *attr, |
| 1620 | const char *buf, size_t size) |
| 1621 | { |
| 1622 | unsigned long val; |
| 1623 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1624 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1625 | |
| 1626 | if (kstrtoul(buf, 16, &val)) |
| 1627 | return -EINVAL; |
| 1628 | if (val >= drvdata->numcidc) |
| 1629 | return -EINVAL; |
| 1630 | |
| 1631 | /* |
| 1632 | * Use spinlock to ensure index doesn't change while it gets |
| 1633 | * dereferenced multiple times within a spinlock block elsewhere. |
| 1634 | */ |
| 1635 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1636 | config->ctxid_idx = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1637 | spin_unlock(&drvdata->spinlock); |
| 1638 | return size; |
| 1639 | } |
| 1640 | static DEVICE_ATTR_RW(ctxid_idx); |
| 1641 | |
| 1642 | static ssize_t ctxid_pid_show(struct device *dev, |
| 1643 | struct device_attribute *attr, |
| 1644 | char *buf) |
| 1645 | { |
| 1646 | u8 idx; |
| 1647 | unsigned long val; |
| 1648 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1649 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1650 | |
| 1651 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1652 | idx = config->ctxid_idx; |
| 1653 | val = (unsigned long)config->ctxid_vpid[idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1654 | spin_unlock(&drvdata->spinlock); |
| 1655 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1656 | } |
| 1657 | |
| 1658 | static ssize_t ctxid_pid_store(struct device *dev, |
| 1659 | struct device_attribute *attr, |
| 1660 | const char *buf, size_t size) |
| 1661 | { |
| 1662 | u8 idx; |
| 1663 | unsigned long vpid, pid; |
| 1664 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1665 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1666 | |
| 1667 | /* |
| 1668 | * only implemented when ctxid tracing is enabled, i.e. at least one |
| 1669 | * ctxid comparator is implemented and ctxid is greater than 0 bits |
| 1670 | * in length |
| 1671 | */ |
| 1672 | if (!drvdata->ctxid_size || !drvdata->numcidc) |
| 1673 | return -EINVAL; |
| 1674 | if (kstrtoul(buf, 16, &vpid)) |
| 1675 | return -EINVAL; |
| 1676 | |
| 1677 | pid = coresight_vpid_to_pid(vpid); |
| 1678 | |
| 1679 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1680 | idx = config->ctxid_idx; |
| 1681 | config->ctxid_pid[idx] = (u64)pid; |
| 1682 | config->ctxid_vpid[idx] = (u64)vpid; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1683 | spin_unlock(&drvdata->spinlock); |
| 1684 | return size; |
| 1685 | } |
| 1686 | static DEVICE_ATTR_RW(ctxid_pid); |
| 1687 | |
| 1688 | static ssize_t ctxid_masks_show(struct device *dev, |
| 1689 | struct device_attribute *attr, |
| 1690 | char *buf) |
| 1691 | { |
| 1692 | unsigned long val1, val2; |
| 1693 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1694 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1695 | |
| 1696 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1697 | val1 = config->ctxid_mask0; |
| 1698 | val2 = config->ctxid_mask1; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1699 | spin_unlock(&drvdata->spinlock); |
| 1700 | return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2); |
| 1701 | } |
| 1702 | |
| 1703 | static ssize_t ctxid_masks_store(struct device *dev, |
| 1704 | struct device_attribute *attr, |
| 1705 | const char *buf, size_t size) |
| 1706 | { |
| 1707 | u8 i, j, maskbyte; |
| 1708 | unsigned long val1, val2, mask; |
| 1709 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1710 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1711 | |
| 1712 | /* |
| 1713 | * only implemented when ctxid tracing is enabled, i.e. at least one |
| 1714 | * ctxid comparator is implemented and ctxid is greater than 0 bits |
| 1715 | * in length |
| 1716 | */ |
| 1717 | if (!drvdata->ctxid_size || !drvdata->numcidc) |
| 1718 | return -EINVAL; |
| 1719 | if (sscanf(buf, "%lx %lx", &val1, &val2) != 2) |
| 1720 | return -EINVAL; |
| 1721 | |
| 1722 | spin_lock(&drvdata->spinlock); |
| 1723 | /* |
| 1724 | * each byte[0..3] controls mask value applied to ctxid |
| 1725 | * comparator[0..3] |
| 1726 | */ |
| 1727 | switch (drvdata->numcidc) { |
| 1728 | case 0x1: |
| 1729 | /* COMP0, bits[7:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1730 | config->ctxid_mask0 = val1 & 0xFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1731 | break; |
| 1732 | case 0x2: |
| 1733 | /* COMP1, bits[15:8] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1734 | config->ctxid_mask0 = val1 & 0xFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1735 | break; |
| 1736 | case 0x3: |
| 1737 | /* COMP2, bits[23:16] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1738 | config->ctxid_mask0 = val1 & 0xFFFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1739 | break; |
| 1740 | case 0x4: |
| 1741 | /* COMP3, bits[31:24] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1742 | config->ctxid_mask0 = val1; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1743 | break; |
| 1744 | case 0x5: |
| 1745 | /* COMP4, bits[7:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1746 | config->ctxid_mask0 = val1; |
| 1747 | config->ctxid_mask1 = val2 & 0xFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1748 | break; |
| 1749 | case 0x6: |
| 1750 | /* COMP5, bits[15:8] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1751 | config->ctxid_mask0 = val1; |
| 1752 | config->ctxid_mask1 = val2 & 0xFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1753 | break; |
| 1754 | case 0x7: |
| 1755 | /* COMP6, bits[23:16] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1756 | config->ctxid_mask0 = val1; |
| 1757 | config->ctxid_mask1 = val2 & 0xFFFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1758 | break; |
| 1759 | case 0x8: |
| 1760 | /* COMP7, bits[31:24] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1761 | config->ctxid_mask0 = val1; |
| 1762 | config->ctxid_mask1 = val2; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1763 | break; |
| 1764 | default: |
| 1765 | break; |
| 1766 | } |
| 1767 | /* |
| 1768 | * If software sets a mask bit to 1, it must program relevant byte |
| 1769 | * of ctxid comparator value 0x0, otherwise behavior is unpredictable. |
| 1770 | * For example, if bit[3] of ctxid_mask0 is 1, we must clear bits[31:24] |
| 1771 | * of ctxid comparator0 value (corresponding to byte 0) register. |
| 1772 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1773 | mask = config->ctxid_mask0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1774 | for (i = 0; i < drvdata->numcidc; i++) { |
| 1775 | /* mask value of corresponding ctxid comparator */ |
| 1776 | maskbyte = mask & ETMv4_EVENT_MASK; |
| 1777 | /* |
| 1778 | * each bit corresponds to a byte of respective ctxid comparator |
| 1779 | * value register |
| 1780 | */ |
| 1781 | for (j = 0; j < 8; j++) { |
| 1782 | if (maskbyte & 1) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1783 | config->ctxid_pid[i] &= ~(0xFF << (j * 8)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1784 | maskbyte >>= 1; |
| 1785 | } |
| 1786 | /* Select the next ctxid comparator mask value */ |
| 1787 | if (i == 3) |
| 1788 | /* ctxid comparators[4-7] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1789 | mask = config->ctxid_mask1; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1790 | else |
| 1791 | mask >>= 0x8; |
| 1792 | } |
| 1793 | |
| 1794 | spin_unlock(&drvdata->spinlock); |
| 1795 | return size; |
| 1796 | } |
| 1797 | static DEVICE_ATTR_RW(ctxid_masks); |
| 1798 | |
| 1799 | static ssize_t vmid_idx_show(struct device *dev, |
| 1800 | struct device_attribute *attr, |
| 1801 | char *buf) |
| 1802 | { |
| 1803 | unsigned long val; |
| 1804 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1805 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1806 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1807 | val = config->vmid_idx; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1808 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1809 | } |
| 1810 | |
| 1811 | static ssize_t vmid_idx_store(struct device *dev, |
| 1812 | struct device_attribute *attr, |
| 1813 | const char *buf, size_t size) |
| 1814 | { |
| 1815 | unsigned long val; |
| 1816 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1817 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1818 | |
| 1819 | if (kstrtoul(buf, 16, &val)) |
| 1820 | return -EINVAL; |
| 1821 | if (val >= drvdata->numvmidc) |
| 1822 | return -EINVAL; |
| 1823 | |
| 1824 | /* |
| 1825 | * Use spinlock to ensure index doesn't change while it gets |
| 1826 | * dereferenced multiple times within a spinlock block elsewhere. |
| 1827 | */ |
| 1828 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1829 | config->vmid_idx = val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1830 | spin_unlock(&drvdata->spinlock); |
| 1831 | return size; |
| 1832 | } |
| 1833 | static DEVICE_ATTR_RW(vmid_idx); |
| 1834 | |
| 1835 | static ssize_t vmid_val_show(struct device *dev, |
| 1836 | struct device_attribute *attr, |
| 1837 | char *buf) |
| 1838 | { |
| 1839 | unsigned long val; |
| 1840 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1841 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1842 | |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1843 | val = (unsigned long)config->vmid_val[config->vmid_idx]; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1844 | return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); |
| 1845 | } |
| 1846 | |
| 1847 | static ssize_t vmid_val_store(struct device *dev, |
| 1848 | struct device_attribute *attr, |
| 1849 | const char *buf, size_t size) |
| 1850 | { |
| 1851 | unsigned long val; |
| 1852 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1853 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1854 | |
| 1855 | /* |
| 1856 | * only implemented when vmid tracing is enabled, i.e. at least one |
| 1857 | * vmid comparator is implemented and at least 8 bit vmid size |
| 1858 | */ |
| 1859 | if (!drvdata->vmid_size || !drvdata->numvmidc) |
| 1860 | return -EINVAL; |
| 1861 | if (kstrtoul(buf, 16, &val)) |
| 1862 | return -EINVAL; |
| 1863 | |
| 1864 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1865 | config->vmid_val[config->vmid_idx] = (u64)val; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1866 | spin_unlock(&drvdata->spinlock); |
| 1867 | return size; |
| 1868 | } |
| 1869 | static DEVICE_ATTR_RW(vmid_val); |
| 1870 | |
| 1871 | static ssize_t vmid_masks_show(struct device *dev, |
| 1872 | struct device_attribute *attr, char *buf) |
| 1873 | { |
| 1874 | unsigned long val1, val2; |
| 1875 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1876 | struct etmv4_config *config = &drvdata->config; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1877 | |
| 1878 | spin_lock(&drvdata->spinlock); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1879 | val1 = config->vmid_mask0; |
| 1880 | val2 = config->vmid_mask1; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1881 | spin_unlock(&drvdata->spinlock); |
| 1882 | return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2); |
| 1883 | } |
| 1884 | |
| 1885 | static ssize_t vmid_masks_store(struct device *dev, |
| 1886 | struct device_attribute *attr, |
| 1887 | const char *buf, size_t size) |
| 1888 | { |
| 1889 | u8 i, j, maskbyte; |
| 1890 | unsigned long val1, val2, mask; |
| 1891 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1892 | struct etmv4_config *config = &drvdata->config; |
| 1893 | |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1894 | /* |
| 1895 | * only implemented when vmid tracing is enabled, i.e. at least one |
| 1896 | * vmid comparator is implemented and at least 8 bit vmid size |
| 1897 | */ |
| 1898 | if (!drvdata->vmid_size || !drvdata->numvmidc) |
| 1899 | return -EINVAL; |
| 1900 | if (sscanf(buf, "%lx %lx", &val1, &val2) != 2) |
| 1901 | return -EINVAL; |
| 1902 | |
| 1903 | spin_lock(&drvdata->spinlock); |
| 1904 | |
| 1905 | /* |
| 1906 | * each byte[0..3] controls mask value applied to vmid |
| 1907 | * comparator[0..3] |
| 1908 | */ |
| 1909 | switch (drvdata->numvmidc) { |
| 1910 | case 0x1: |
| 1911 | /* COMP0, bits[7:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1912 | config->vmid_mask0 = val1 & 0xFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1913 | break; |
| 1914 | case 0x2: |
| 1915 | /* COMP1, bits[15:8] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1916 | config->vmid_mask0 = val1 & 0xFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1917 | break; |
| 1918 | case 0x3: |
| 1919 | /* COMP2, bits[23:16] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1920 | config->vmid_mask0 = val1 & 0xFFFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1921 | break; |
| 1922 | case 0x4: |
| 1923 | /* COMP3, bits[31:24] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1924 | config->vmid_mask0 = val1; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1925 | break; |
| 1926 | case 0x5: |
| 1927 | /* COMP4, bits[7:0] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1928 | config->vmid_mask0 = val1; |
| 1929 | config->vmid_mask1 = val2 & 0xFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1930 | break; |
| 1931 | case 0x6: |
| 1932 | /* COMP5, bits[15:8] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1933 | config->vmid_mask0 = val1; |
| 1934 | config->vmid_mask1 = val2 & 0xFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1935 | break; |
| 1936 | case 0x7: |
| 1937 | /* COMP6, bits[23:16] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1938 | config->vmid_mask0 = val1; |
| 1939 | config->vmid_mask1 = val2 & 0xFFFFFF; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1940 | break; |
| 1941 | case 0x8: |
| 1942 | /* COMP7, bits[31:24] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1943 | config->vmid_mask0 = val1; |
| 1944 | config->vmid_mask1 = val2; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1945 | break; |
| 1946 | default: |
| 1947 | break; |
| 1948 | } |
| 1949 | |
| 1950 | /* |
| 1951 | * If software sets a mask bit to 1, it must program relevant byte |
| 1952 | * of vmid comparator value 0x0, otherwise behavior is unpredictable. |
| 1953 | * For example, if bit[3] of vmid_mask0 is 1, we must clear bits[31:24] |
| 1954 | * of vmid comparator0 value (corresponding to byte 0) register. |
| 1955 | */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1956 | mask = config->vmid_mask0; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1957 | for (i = 0; i < drvdata->numvmidc; i++) { |
| 1958 | /* mask value of corresponding vmid comparator */ |
| 1959 | maskbyte = mask & ETMv4_EVENT_MASK; |
| 1960 | /* |
| 1961 | * each bit corresponds to a byte of respective vmid comparator |
| 1962 | * value register |
| 1963 | */ |
| 1964 | for (j = 0; j < 8; j++) { |
| 1965 | if (maskbyte & 1) |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1966 | config->vmid_val[i] &= ~(0xFF << (j * 8)); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1967 | maskbyte >>= 1; |
| 1968 | } |
| 1969 | /* Select the next vmid comparator mask value */ |
| 1970 | if (i == 3) |
| 1971 | /* vmid comparators[4-7] */ |
Mathieu Poirier | 54ff892 | 2016-04-05 11:53:44 -0600 | [diff] [blame] | 1972 | mask = config->vmid_mask1; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 1973 | else |
| 1974 | mask >>= 0x8; |
| 1975 | } |
| 1976 | spin_unlock(&drvdata->spinlock); |
| 1977 | return size; |
| 1978 | } |
| 1979 | static DEVICE_ATTR_RW(vmid_masks); |
| 1980 | |
| 1981 | static ssize_t cpu_show(struct device *dev, |
| 1982 | struct device_attribute *attr, char *buf) |
| 1983 | { |
| 1984 | int val; |
| 1985 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); |
| 1986 | |
| 1987 | val = drvdata->cpu; |
| 1988 | return scnprintf(buf, PAGE_SIZE, "%d\n", val); |
| 1989 | |
| 1990 | } |
| 1991 | static DEVICE_ATTR_RO(cpu); |
| 1992 | |
| 1993 | static struct attribute *coresight_etmv4_attrs[] = { |
| 1994 | &dev_attr_nr_pe_cmp.attr, |
| 1995 | &dev_attr_nr_addr_cmp.attr, |
| 1996 | &dev_attr_nr_cntr.attr, |
| 1997 | &dev_attr_nr_ext_inp.attr, |
| 1998 | &dev_attr_numcidc.attr, |
| 1999 | &dev_attr_numvmidc.attr, |
| 2000 | &dev_attr_nrseqstate.attr, |
| 2001 | &dev_attr_nr_resource.attr, |
| 2002 | &dev_attr_nr_ss_cmp.attr, |
| 2003 | &dev_attr_reset.attr, |
| 2004 | &dev_attr_mode.attr, |
| 2005 | &dev_attr_pe.attr, |
| 2006 | &dev_attr_event.attr, |
| 2007 | &dev_attr_event_instren.attr, |
| 2008 | &dev_attr_event_ts.attr, |
| 2009 | &dev_attr_syncfreq.attr, |
| 2010 | &dev_attr_cyc_threshold.attr, |
| 2011 | &dev_attr_bb_ctrl.attr, |
| 2012 | &dev_attr_event_vinst.attr, |
| 2013 | &dev_attr_s_exlevel_vinst.attr, |
| 2014 | &dev_attr_ns_exlevel_vinst.attr, |
| 2015 | &dev_attr_addr_idx.attr, |
| 2016 | &dev_attr_addr_instdatatype.attr, |
| 2017 | &dev_attr_addr_single.attr, |
| 2018 | &dev_attr_addr_range.attr, |
| 2019 | &dev_attr_addr_start.attr, |
| 2020 | &dev_attr_addr_stop.attr, |
| 2021 | &dev_attr_addr_ctxtype.attr, |
| 2022 | &dev_attr_addr_context.attr, |
| 2023 | &dev_attr_seq_idx.attr, |
| 2024 | &dev_attr_seq_state.attr, |
| 2025 | &dev_attr_seq_event.attr, |
| 2026 | &dev_attr_seq_reset_event.attr, |
| 2027 | &dev_attr_cntr_idx.attr, |
| 2028 | &dev_attr_cntrldvr.attr, |
| 2029 | &dev_attr_cntr_val.attr, |
| 2030 | &dev_attr_cntr_ctrl.attr, |
| 2031 | &dev_attr_res_idx.attr, |
| 2032 | &dev_attr_res_ctrl.attr, |
| 2033 | &dev_attr_ctxid_idx.attr, |
| 2034 | &dev_attr_ctxid_pid.attr, |
| 2035 | &dev_attr_ctxid_masks.attr, |
| 2036 | &dev_attr_vmid_idx.attr, |
| 2037 | &dev_attr_vmid_val.attr, |
| 2038 | &dev_attr_vmid_masks.attr, |
| 2039 | &dev_attr_cpu.attr, |
| 2040 | NULL, |
| 2041 | }; |
| 2042 | |
Sudeep Holla | 3224dcc | 2016-08-25 15:19:09 -0600 | [diff] [blame] | 2043 | struct etmv4_reg { |
| 2044 | void __iomem *addr; |
| 2045 | u32 data; |
| 2046 | }; |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 2047 | |
Sudeep Holla | 3224dcc | 2016-08-25 15:19:09 -0600 | [diff] [blame] | 2048 | static void do_smp_cross_read(void *data) |
| 2049 | { |
| 2050 | struct etmv4_reg *reg = data; |
| 2051 | |
| 2052 | reg->data = readl_relaxed(reg->addr); |
| 2053 | } |
| 2054 | |
| 2055 | static u32 etmv4_cross_read(const struct device *dev, u32 offset) |
| 2056 | { |
| 2057 | struct etmv4_drvdata *drvdata = dev_get_drvdata(dev); |
| 2058 | struct etmv4_reg reg; |
| 2059 | |
| 2060 | reg.addr = drvdata->base + offset; |
| 2061 | /* |
| 2062 | * smp cross call ensures the CPU will be powered up before |
| 2063 | * accessing the ETMv4 trace core registers |
| 2064 | */ |
| 2065 | smp_call_function_single(drvdata->cpu, do_smp_cross_read, ®, 1); |
| 2066 | return reg.data; |
| 2067 | } |
| 2068 | |
| 2069 | #define coresight_etm4x_simple_func(name, offset) \ |
| 2070 | coresight_simple_func(struct etmv4_drvdata, NULL, name, offset) |
| 2071 | |
| 2072 | #define coresight_etm4x_cross_read(name, offset) \ |
| 2073 | coresight_simple_func(struct etmv4_drvdata, etmv4_cross_read, \ |
| 2074 | name, offset) |
| 2075 | |
Mathieu Poirier | 154f3520 | 2016-04-05 11:53:50 -0600 | [diff] [blame] | 2076 | coresight_etm4x_simple_func(trcpdcr, TRCPDCR); |
| 2077 | coresight_etm4x_simple_func(trcpdsr, TRCPDSR); |
| 2078 | coresight_etm4x_simple_func(trclsr, TRCLSR); |
Mathieu Poirier | 154f3520 | 2016-04-05 11:53:50 -0600 | [diff] [blame] | 2079 | coresight_etm4x_simple_func(trcauthstatus, TRCAUTHSTATUS); |
| 2080 | coresight_etm4x_simple_func(trcdevid, TRCDEVID); |
| 2081 | coresight_etm4x_simple_func(trcdevtype, TRCDEVTYPE); |
| 2082 | coresight_etm4x_simple_func(trcpidr0, TRCPIDR0); |
| 2083 | coresight_etm4x_simple_func(trcpidr1, TRCPIDR1); |
| 2084 | coresight_etm4x_simple_func(trcpidr2, TRCPIDR2); |
| 2085 | coresight_etm4x_simple_func(trcpidr3, TRCPIDR3); |
Sudeep Holla | 3224dcc | 2016-08-25 15:19:09 -0600 | [diff] [blame] | 2086 | coresight_etm4x_cross_read(trcoslsr, TRCOSLSR); |
| 2087 | coresight_etm4x_cross_read(trcconfig, TRCCONFIGR); |
| 2088 | coresight_etm4x_cross_read(trctraceid, TRCTRACEIDR); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 2089 | |
| 2090 | static struct attribute *coresight_etmv4_mgmt_attrs[] = { |
| 2091 | &dev_attr_trcoslsr.attr, |
| 2092 | &dev_attr_trcpdcr.attr, |
| 2093 | &dev_attr_trcpdsr.attr, |
| 2094 | &dev_attr_trclsr.attr, |
Mathieu Poirier | 7c38aa4 | 2016-04-05 11:53:43 -0600 | [diff] [blame] | 2095 | &dev_attr_trcconfig.attr, |
| 2096 | &dev_attr_trctraceid.attr, |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 2097 | &dev_attr_trcauthstatus.attr, |
| 2098 | &dev_attr_trcdevid.attr, |
| 2099 | &dev_attr_trcdevtype.attr, |
| 2100 | &dev_attr_trcpidr0.attr, |
| 2101 | &dev_attr_trcpidr1.attr, |
| 2102 | &dev_attr_trcpidr2.attr, |
| 2103 | &dev_attr_trcpidr3.attr, |
| 2104 | NULL, |
| 2105 | }; |
| 2106 | |
Sudeep Holla | 3224dcc | 2016-08-25 15:19:09 -0600 | [diff] [blame] | 2107 | coresight_etm4x_cross_read(trcidr0, TRCIDR0); |
| 2108 | coresight_etm4x_cross_read(trcidr1, TRCIDR1); |
| 2109 | coresight_etm4x_cross_read(trcidr2, TRCIDR2); |
| 2110 | coresight_etm4x_cross_read(trcidr3, TRCIDR3); |
| 2111 | coresight_etm4x_cross_read(trcidr4, TRCIDR4); |
| 2112 | coresight_etm4x_cross_read(trcidr5, TRCIDR5); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 2113 | /* trcidr[6,7] are reserved */ |
Sudeep Holla | 3224dcc | 2016-08-25 15:19:09 -0600 | [diff] [blame] | 2114 | coresight_etm4x_cross_read(trcidr8, TRCIDR8); |
| 2115 | coresight_etm4x_cross_read(trcidr9, TRCIDR9); |
| 2116 | coresight_etm4x_cross_read(trcidr10, TRCIDR10); |
| 2117 | coresight_etm4x_cross_read(trcidr11, TRCIDR11); |
| 2118 | coresight_etm4x_cross_read(trcidr12, TRCIDR12); |
| 2119 | coresight_etm4x_cross_read(trcidr13, TRCIDR13); |
Mathieu Poirier | a77de26 | 2016-04-05 11:53:42 -0600 | [diff] [blame] | 2120 | |
| 2121 | static struct attribute *coresight_etmv4_trcidr_attrs[] = { |
| 2122 | &dev_attr_trcidr0.attr, |
| 2123 | &dev_attr_trcidr1.attr, |
| 2124 | &dev_attr_trcidr2.attr, |
| 2125 | &dev_attr_trcidr3.attr, |
| 2126 | &dev_attr_trcidr4.attr, |
| 2127 | &dev_attr_trcidr5.attr, |
| 2128 | /* trcidr[6,7] are reserved */ |
| 2129 | &dev_attr_trcidr8.attr, |
| 2130 | &dev_attr_trcidr9.attr, |
| 2131 | &dev_attr_trcidr10.attr, |
| 2132 | &dev_attr_trcidr11.attr, |
| 2133 | &dev_attr_trcidr12.attr, |
| 2134 | &dev_attr_trcidr13.attr, |
| 2135 | NULL, |
| 2136 | }; |
| 2137 | |
| 2138 | static const struct attribute_group coresight_etmv4_group = { |
| 2139 | .attrs = coresight_etmv4_attrs, |
| 2140 | }; |
| 2141 | |
| 2142 | static const struct attribute_group coresight_etmv4_mgmt_group = { |
| 2143 | .attrs = coresight_etmv4_mgmt_attrs, |
| 2144 | .name = "mgmt", |
| 2145 | }; |
| 2146 | |
| 2147 | static const struct attribute_group coresight_etmv4_trcidr_group = { |
| 2148 | .attrs = coresight_etmv4_trcidr_attrs, |
| 2149 | .name = "trcidr", |
| 2150 | }; |
| 2151 | |
| 2152 | const struct attribute_group *coresight_etmv4_groups[] = { |
| 2153 | &coresight_etmv4_group, |
| 2154 | &coresight_etmv4_mgmt_group, |
| 2155 | &coresight_etmv4_trcidr_group, |
| 2156 | NULL, |
| 2157 | }; |