1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Qualcomm ADSP/SLPI Peripheral Image Loader for MSM8974 and MSM8996 4 * 5 * Copyright (C) 2016 Linaro Ltd 6 * Copyright (C) 2014 Sony Mobile Communications AB 7 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. 8 */ 9 10 #include <linux/clk.h> 11 #include <linux/firmware.h> 12 #include <linux/interrupt.h> 13 #include <linux/kernel.h> 14 #include <linux/module.h> 15 #include <linux/of_address.h> 16 #include <linux/of_device.h> 17 #include <linux/platform_device.h> 18 #include <linux/qcom_scm.h> 19 #include <linux/regulator/consumer.h> 20 #include <linux/remoteproc.h> 21 #include <linux/soc/qcom/mdt_loader.h> 22 #include <linux/soc/qcom/smem.h> 23 #include <linux/soc/qcom/smem_state.h> 24 25 #include "qcom_common.h" 26 #include "qcom_q6v5.h" 27 #include "remoteproc_internal.h" 28 29 struct adsp_data { 30 int crash_reason_smem; 31 const char *firmware_name; 32 int pas_id; 33 bool has_aggre2_clk; 34 35 const char *ssr_name; 36 const char *sysmon_name; 37 int ssctl_id; 38 }; 39 40 struct qcom_adsp { 41 struct device *dev; 42 struct rproc *rproc; 43 44 struct qcom_q6v5 q6v5; 45 46 struct clk *xo; 47 struct clk *aggre2_clk; 48 49 struct regulator *cx_supply; 50 struct regulator *px_supply; 51 52 int pas_id; 53 int crash_reason_smem; 54 bool has_aggre2_clk; 55 56 struct completion start_done; 57 struct completion stop_done; 58 59 phys_addr_t mem_phys; 60 phys_addr_t mem_reloc; 61 void *mem_region; 62 size_t mem_size; 63 64 struct qcom_rproc_glink glink_subdev; 65 struct qcom_rproc_subdev smd_subdev; 66 struct qcom_rproc_ssr ssr_subdev; 67 struct qcom_sysmon *sysmon; 68 }; 69 70 static int adsp_load(struct rproc *rproc, const struct firmware *fw) 71 { 72 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; 73 74 return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id, 75 adsp->mem_region, adsp->mem_phys, adsp->mem_size, 76 &adsp->mem_reloc); 77 78 } 79 80 static int adsp_start(struct rproc *rproc) 81 { 82 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; 83 int ret; 84 85 qcom_q6v5_prepare(&adsp->q6v5); 86 87 ret = clk_prepare_enable(adsp->xo); 88 if (ret) 89 return ret; 90 91 ret = clk_prepare_enable(adsp->aggre2_clk); 92 if (ret) 93 goto disable_xo_clk; 94 95 ret = regulator_enable(adsp->cx_supply); 96 if (ret) 97 goto disable_aggre2_clk; 98 99 ret = regulator_enable(adsp->px_supply); 100 if (ret) 101 goto disable_cx_supply; 102 103 ret = qcom_scm_pas_auth_and_reset(adsp->pas_id); 104 if (ret) { 105 dev_err(adsp->dev, 106 "failed to authenticate image and release reset\n"); 107 goto disable_px_supply; 108 } 109 110 ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5000)); 111 if (ret == -ETIMEDOUT) { 112 dev_err(adsp->dev, "start timed out\n"); 113 qcom_scm_pas_shutdown(adsp->pas_id); 114 goto disable_px_supply; 115 } 116 117 return 0; 118 119 disable_px_supply: 120 regulator_disable(adsp->px_supply); 121 disable_cx_supply: 122 regulator_disable(adsp->cx_supply); 123 disable_aggre2_clk: 124 clk_disable_unprepare(adsp->aggre2_clk); 125 disable_xo_clk: 126 clk_disable_unprepare(adsp->xo); 127 128 return ret; 129 } 130 131 static void qcom_pas_handover(struct qcom_q6v5 *q6v5) 132 { 133 struct qcom_adsp *adsp = container_of(q6v5, struct qcom_adsp, q6v5); 134 135 regulator_disable(adsp->px_supply); 136 regulator_disable(adsp->cx_supply); 137 clk_disable_unprepare(adsp->aggre2_clk); 138 clk_disable_unprepare(adsp->xo); 139 } 140 141 static int adsp_stop(struct rproc *rproc) 142 { 143 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; 144 int handover; 145 int ret; 146 147 ret = qcom_q6v5_request_stop(&adsp->q6v5); 148 if (ret == -ETIMEDOUT) 149 dev_err(adsp->dev, "timed out on wait\n"); 150 151 ret = qcom_scm_pas_shutdown(adsp->pas_id); 152 if (ret) 153 dev_err(adsp->dev, "failed to shutdown: %d\n", ret); 154 155 handover = qcom_q6v5_unprepare(&adsp->q6v5); 156 if (handover) 157 qcom_pas_handover(&adsp->q6v5); 158 159 return ret; 160 } 161 162 static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len) 163 { 164 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; 165 int offset; 166 167 offset = da - adsp->mem_reloc; 168 if (offset < 0 || offset + len > adsp->mem_size) 169 return NULL; 170 171 return adsp->mem_region + offset; 172 } 173 174 static const struct rproc_ops adsp_ops = { 175 .start = adsp_start, 176 .stop = adsp_stop, 177 .da_to_va = adsp_da_to_va, 178 .parse_fw = qcom_register_dump_segments, 179 .load = adsp_load, 180 }; 181 182 static int adsp_init_clock(struct qcom_adsp *adsp) 183 { 184 int ret; 185 186 adsp->xo = devm_clk_get(adsp->dev, "xo"); 187 if (IS_ERR(adsp->xo)) { 188 ret = PTR_ERR(adsp->xo); 189 if (ret != -EPROBE_DEFER) 190 dev_err(adsp->dev, "failed to get xo clock"); 191 return ret; 192 } 193 194 if (adsp->has_aggre2_clk) { 195 adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2"); 196 if (IS_ERR(adsp->aggre2_clk)) { 197 ret = PTR_ERR(adsp->aggre2_clk); 198 if (ret != -EPROBE_DEFER) 199 dev_err(adsp->dev, 200 "failed to get aggre2 clock"); 201 return ret; 202 } 203 } 204 205 return 0; 206 } 207 208 static int adsp_init_regulator(struct qcom_adsp *adsp) 209 { 210 adsp->cx_supply = devm_regulator_get(adsp->dev, "cx"); 211 if (IS_ERR(adsp->cx_supply)) 212 return PTR_ERR(adsp->cx_supply); 213 214 regulator_set_load(adsp->cx_supply, 100000); 215 216 adsp->px_supply = devm_regulator_get(adsp->dev, "px"); 217 return PTR_ERR_OR_ZERO(adsp->px_supply); 218 } 219 220 static int adsp_alloc_memory_region(struct qcom_adsp *adsp) 221 { 222 struct device_node *node; 223 struct resource r; 224 int ret; 225 226 node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0); 227 if (!node) { 228 dev_err(adsp->dev, "no memory-region specified\n"); 229 return -EINVAL; 230 } 231 232 ret = of_address_to_resource(node, 0, &r); 233 if (ret) 234 return ret; 235 236 adsp->mem_phys = adsp->mem_reloc = r.start; 237 adsp->mem_size = resource_size(&r); 238 adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size); 239 if (!adsp->mem_region) { 240 dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n", 241 &r.start, adsp->mem_size); 242 return -EBUSY; 243 } 244 245 return 0; 246 } 247 248 static int adsp_probe(struct platform_device *pdev) 249 { 250 const struct adsp_data *desc; 251 struct qcom_adsp *adsp; 252 struct rproc *rproc; 253 const char *fw_name; 254 int ret; 255 256 desc = of_device_get_match_data(&pdev->dev); 257 if (!desc) 258 return -EINVAL; 259 260 if (!qcom_scm_is_available()) 261 return -EPROBE_DEFER; 262 263 fw_name = desc->firmware_name; 264 ret = of_property_read_string(pdev->dev.of_node, "firmware-name", 265 &fw_name); 266 if (ret < 0 && ret != -EINVAL) 267 return ret; 268 269 rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops, 270 fw_name, sizeof(*adsp)); 271 if (!rproc) { 272 dev_err(&pdev->dev, "unable to allocate remoteproc\n"); 273 return -ENOMEM; 274 } 275 276 adsp = (struct qcom_adsp *)rproc->priv; 277 adsp->dev = &pdev->dev; 278 adsp->rproc = rproc; 279 adsp->pas_id = desc->pas_id; 280 adsp->has_aggre2_clk = desc->has_aggre2_clk; 281 platform_set_drvdata(pdev, adsp); 282 283 ret = adsp_alloc_memory_region(adsp); 284 if (ret) 285 goto free_rproc; 286 287 ret = adsp_init_clock(adsp); 288 if (ret) 289 goto free_rproc; 290 291 ret = adsp_init_regulator(adsp); 292 if (ret) 293 goto free_rproc; 294 295 ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem, 296 qcom_pas_handover); 297 if (ret) 298 goto free_rproc; 299 300 qcom_add_glink_subdev(rproc, &adsp->glink_subdev); 301 qcom_add_smd_subdev(rproc, &adsp->smd_subdev); 302 qcom_add_ssr_subdev(rproc, &adsp->ssr_subdev, desc->ssr_name); 303 adsp->sysmon = qcom_add_sysmon_subdev(rproc, 304 desc->sysmon_name, 305 desc->ssctl_id); 306 if (IS_ERR(adsp->sysmon)) { 307 ret = PTR_ERR(adsp->sysmon); 308 goto free_rproc; 309 } 310 311 ret = rproc_add(rproc); 312 if (ret) 313 goto free_rproc; 314 315 return 0; 316 317 free_rproc: 318 rproc_free(rproc); 319 320 return ret; 321 } 322 323 static int adsp_remove(struct platform_device *pdev) 324 { 325 struct qcom_adsp *adsp = platform_get_drvdata(pdev); 326 327 rproc_del(adsp->rproc); 328 329 qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev); 330 qcom_remove_sysmon_subdev(adsp->sysmon); 331 qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev); 332 qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev); 333 rproc_free(adsp->rproc); 334 335 return 0; 336 } 337 338 static const struct adsp_data adsp_resource_init = { 339 .crash_reason_smem = 423, 340 .firmware_name = "adsp.mdt", 341 .pas_id = 1, 342 .has_aggre2_clk = false, 343 .ssr_name = "lpass", 344 .sysmon_name = "adsp", 345 .ssctl_id = 0x14, 346 }; 347 348 static const struct adsp_data cdsp_resource_init = { 349 .crash_reason_smem = 601, 350 .firmware_name = "cdsp.mdt", 351 .pas_id = 18, 352 .has_aggre2_clk = false, 353 .ssr_name = "cdsp", 354 .sysmon_name = "cdsp", 355 .ssctl_id = 0x17, 356 }; 357 358 static const struct adsp_data slpi_resource_init = { 359 .crash_reason_smem = 424, 360 .firmware_name = "slpi.mdt", 361 .pas_id = 12, 362 .has_aggre2_clk = true, 363 .ssr_name = "dsps", 364 .sysmon_name = "slpi", 365 .ssctl_id = 0x16, 366 }; 367 368 static const struct adsp_data wcss_resource_init = { 369 .crash_reason_smem = 421, 370 .firmware_name = "wcnss.mdt", 371 .pas_id = 6, 372 .ssr_name = "mpss", 373 .sysmon_name = "wcnss", 374 .ssctl_id = 0x12, 375 }; 376 377 static const struct of_device_id adsp_of_match[] = { 378 { .compatible = "qcom,msm8974-adsp-pil", .data = &adsp_resource_init}, 379 { .compatible = "qcom,msm8996-adsp-pil", .data = &adsp_resource_init}, 380 { .compatible = "qcom,msm8996-slpi-pil", .data = &slpi_resource_init}, 381 { .compatible = "qcom,qcs404-adsp-pas", .data = &adsp_resource_init }, 382 { .compatible = "qcom,qcs404-cdsp-pas", .data = &cdsp_resource_init }, 383 { .compatible = "qcom,qcs404-wcss-pas", .data = &wcss_resource_init }, 384 { .compatible = "qcom,sdm845-adsp-pas", .data = &adsp_resource_init}, 385 { .compatible = "qcom,sdm845-cdsp-pas", .data = &cdsp_resource_init}, 386 { }, 387 }; 388 MODULE_DEVICE_TABLE(of, adsp_of_match); 389 390 static struct platform_driver adsp_driver = { 391 .probe = adsp_probe, 392 .remove = adsp_remove, 393 .driver = { 394 .name = "qcom_q6v5_pas", 395 .of_match_table = adsp_of_match, 396 }, 397 }; 398 399 module_platform_driver(adsp_driver); 400 MODULE_DESCRIPTION("Qualcomm Hexagon v5 Peripheral Authentication Service driver"); 401 MODULE_LICENSE("GPL v2"); 402