Merge tag 'drm-misc-next-fixes-2019-03-13' of git://anongit.freedesktop.org/drm/drm...
[linux-2.6-block.git] / drivers / remoteproc / qcom_q6v5_pas.c
CommitLineData
b9e718e9 1/*
90a068ed 2 * Qualcomm ADSP/SLPI Peripheral Image Loader for MSM8974 and MSM8996
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3 *
4 * Copyright (C) 2016 Linaro Ltd
5 * Copyright (C) 2014 Sony Mobile Communications AB
6 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 */
17
f33a7358 18#include <linux/clk.h>
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19#include <linux/firmware.h>
20#include <linux/interrupt.h>
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/of_address.h>
24#include <linux/of_device.h>
25#include <linux/platform_device.h>
26#include <linux/qcom_scm.h>
27#include <linux/regulator/consumer.h>
28#include <linux/remoteproc.h>
2aad40d9 29#include <linux/soc/qcom/mdt_loader.h>
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30#include <linux/soc/qcom/smem.h>
31#include <linux/soc/qcom/smem_state.h>
32
bde440ee 33#include "qcom_common.h"
6103b1a6 34#include "qcom_q6v5.h"
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35#include "remoteproc_internal.h"
36
c7715e47
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37struct adsp_data {
38 int crash_reason_smem;
39 const char *firmware_name;
40 int pas_id;
e323fc03 41 bool has_aggre2_clk;
1fb82ee8 42
1e140df0 43 const char *ssr_name;
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44 const char *sysmon_name;
45 int ssctl_id;
c7715e47 46};
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47
48struct qcom_adsp {
49 struct device *dev;
50 struct rproc *rproc;
51
6103b1a6 52 struct qcom_q6v5 q6v5;
b9e718e9 53
f33a7358 54 struct clk *xo;
e323fc03 55 struct clk *aggre2_clk;
f33a7358 56
b9e718e9 57 struct regulator *cx_supply;
e323fc03 58 struct regulator *px_supply;
b9e718e9 59
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60 int pas_id;
61 int crash_reason_smem;
e323fc03 62 bool has_aggre2_clk;
c7715e47 63
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64 struct completion start_done;
65 struct completion stop_done;
66
67 phys_addr_t mem_phys;
68 phys_addr_t mem_reloc;
69 void *mem_region;
70 size_t mem_size;
4b48921a 71
eea07023 72 struct qcom_rproc_glink glink_subdev;
4b48921a 73 struct qcom_rproc_subdev smd_subdev;
1e140df0 74 struct qcom_rproc_ssr ssr_subdev;
1fb82ee8 75 struct qcom_sysmon *sysmon;
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76};
77
78static int adsp_load(struct rproc *rproc, const struct firmware *fw)
79{
80 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
b9e718e9 81
7f0dd07a 82 return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
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83 adsp->mem_region, adsp->mem_phys, adsp->mem_size,
84 &adsp->mem_reloc);
85
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86}
87
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88static int adsp_start(struct rproc *rproc)
89{
90 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
91 int ret;
92
6103b1a6
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93 qcom_q6v5_prepare(&adsp->q6v5);
94
f33a7358 95 ret = clk_prepare_enable(adsp->xo);
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96 if (ret)
97 return ret;
98
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99 ret = clk_prepare_enable(adsp->aggre2_clk);
100 if (ret)
101 goto disable_xo_clk;
102
f33a7358
SJ
103 ret = regulator_enable(adsp->cx_supply);
104 if (ret)
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105 goto disable_aggre2_clk;
106
107 ret = regulator_enable(adsp->px_supply);
108 if (ret)
109 goto disable_cx_supply;
f33a7358 110
c7715e47 111 ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
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112 if (ret) {
113 dev_err(adsp->dev,
114 "failed to authenticate image and release reset\n");
e323fc03 115 goto disable_px_supply;
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116 }
117
6103b1a6
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118 ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5000));
119 if (ret == -ETIMEDOUT) {
b9e718e9 120 dev_err(adsp->dev, "start timed out\n");
c7715e47 121 qcom_scm_pas_shutdown(adsp->pas_id);
e323fc03 122 goto disable_px_supply;
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123 }
124
6103b1a6 125 return 0;
b9e718e9 126
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AKD
127disable_px_supply:
128 regulator_disable(adsp->px_supply);
129disable_cx_supply:
b9e718e9 130 regulator_disable(adsp->cx_supply);
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AKD
131disable_aggre2_clk:
132 clk_disable_unprepare(adsp->aggre2_clk);
133disable_xo_clk:
f33a7358 134 clk_disable_unprepare(adsp->xo);
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135
136 return ret;
137}
138
6103b1a6
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139static void qcom_pas_handover(struct qcom_q6v5 *q6v5)
140{
141 struct qcom_adsp *adsp = container_of(q6v5, struct qcom_adsp, q6v5);
142
143 regulator_disable(adsp->px_supply);
144 regulator_disable(adsp->cx_supply);
145 clk_disable_unprepare(adsp->aggre2_clk);
146 clk_disable_unprepare(adsp->xo);
147}
148
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149static int adsp_stop(struct rproc *rproc)
150{
151 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
6103b1a6 152 int handover;
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153 int ret;
154
6103b1a6
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155 ret = qcom_q6v5_request_stop(&adsp->q6v5);
156 if (ret == -ETIMEDOUT)
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157 dev_err(adsp->dev, "timed out on wait\n");
158
c7715e47 159 ret = qcom_scm_pas_shutdown(adsp->pas_id);
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160 if (ret)
161 dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
162
6103b1a6
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163 handover = qcom_q6v5_unprepare(&adsp->q6v5);
164 if (handover)
165 qcom_pas_handover(&adsp->q6v5);
166
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167 return ret;
168}
169
170static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
171{
172 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
173 int offset;
174
175 offset = da - adsp->mem_reloc;
176 if (offset < 0 || offset + len > adsp->mem_size)
177 return NULL;
178
179 return adsp->mem_region + offset;
180}
181
182static const struct rproc_ops adsp_ops = {
183 .start = adsp_start,
184 .stop = adsp_stop,
185 .da_to_va = adsp_da_to_va,
dcb57ed4 186 .parse_fw = qcom_register_dump_segments,
0f21f9cc 187 .load = adsp_load,
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188};
189
f33a7358
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190static int adsp_init_clock(struct qcom_adsp *adsp)
191{
192 int ret;
193
194 adsp->xo = devm_clk_get(adsp->dev, "xo");
195 if (IS_ERR(adsp->xo)) {
196 ret = PTR_ERR(adsp->xo);
197 if (ret != -EPROBE_DEFER)
198 dev_err(adsp->dev, "failed to get xo clock");
199 return ret;
200 }
201
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202 if (adsp->has_aggre2_clk) {
203 adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2");
204 if (IS_ERR(adsp->aggre2_clk)) {
205 ret = PTR_ERR(adsp->aggre2_clk);
206 if (ret != -EPROBE_DEFER)
207 dev_err(adsp->dev,
208 "failed to get aggre2 clock");
209 return ret;
210 }
211 }
212
f33a7358
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213 return 0;
214}
215
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216static int adsp_init_regulator(struct qcom_adsp *adsp)
217{
218 adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
219 if (IS_ERR(adsp->cx_supply))
220 return PTR_ERR(adsp->cx_supply);
221
222 regulator_set_load(adsp->cx_supply, 100000);
223
e323fc03 224 adsp->px_supply = devm_regulator_get(adsp->dev, "px");
c76929b3 225 return PTR_ERR_OR_ZERO(adsp->px_supply);
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226}
227
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228static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
229{
230 struct device_node *node;
231 struct resource r;
232 int ret;
233
234 node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
235 if (!node) {
236 dev_err(adsp->dev, "no memory-region specified\n");
237 return -EINVAL;
238 }
239
240 ret = of_address_to_resource(node, 0, &r);
241 if (ret)
242 return ret;
243
244 adsp->mem_phys = adsp->mem_reloc = r.start;
245 adsp->mem_size = resource_size(&r);
246 adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
247 if (!adsp->mem_region) {
248 dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
249 &r.start, adsp->mem_size);
250 return -EBUSY;
251 }
252
253 return 0;
254}
255
256static int adsp_probe(struct platform_device *pdev)
257{
c7715e47 258 const struct adsp_data *desc;
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259 struct qcom_adsp *adsp;
260 struct rproc *rproc;
261 int ret;
262
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263 desc = of_device_get_match_data(&pdev->dev);
264 if (!desc)
265 return -EINVAL;
266
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267 if (!qcom_scm_is_available())
268 return -EPROBE_DEFER;
269
b9e718e9 270 rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
c7715e47 271 desc->firmware_name, sizeof(*adsp));
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272 if (!rproc) {
273 dev_err(&pdev->dev, "unable to allocate remoteproc\n");
274 return -ENOMEM;
275 }
276
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277 adsp = (struct qcom_adsp *)rproc->priv;
278 adsp->dev = &pdev->dev;
279 adsp->rproc = rproc;
c7715e47 280 adsp->pas_id = desc->pas_id;
e323fc03 281 adsp->has_aggre2_clk = desc->has_aggre2_clk;
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282 platform_set_drvdata(pdev, adsp);
283
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284 ret = adsp_alloc_memory_region(adsp);
285 if (ret)
286 goto free_rproc;
287
f33a7358
SJ
288 ret = adsp_init_clock(adsp);
289 if (ret)
290 goto free_rproc;
291
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292 ret = adsp_init_regulator(adsp);
293 if (ret)
294 goto free_rproc;
295
6103b1a6
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296 ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
297 qcom_pas_handover);
298 if (ret)
b9e718e9 299 goto free_rproc;
b9e718e9 300
eea07023 301 qcom_add_glink_subdev(rproc, &adsp->glink_subdev);
4b48921a 302 qcom_add_smd_subdev(rproc, &adsp->smd_subdev);
1e140df0 303 qcom_add_ssr_subdev(rproc, &adsp->ssr_subdev, desc->ssr_name);
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304 adsp->sysmon = qcom_add_sysmon_subdev(rproc,
305 desc->sysmon_name,
306 desc->ssctl_id);
4b48921a 307
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308 ret = rproc_add(rproc);
309 if (ret)
310 goto free_rproc;
311
312 return 0;
313
314free_rproc:
90a80d88 315 rproc_free(rproc);
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316
317 return ret;
318}
319
320static int adsp_remove(struct platform_device *pdev)
321{
322 struct qcom_adsp *adsp = platform_get_drvdata(pdev);
323
b9e718e9 324 rproc_del(adsp->rproc);
4b48921a 325
eea07023 326 qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
1fb82ee8 327 qcom_remove_sysmon_subdev(adsp->sysmon);
4b48921a 328 qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev);
1e140df0 329 qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
90a80d88 330 rproc_free(adsp->rproc);
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331
332 return 0;
333}
334
c7715e47
AKD
335static const struct adsp_data adsp_resource_init = {
336 .crash_reason_smem = 423,
337 .firmware_name = "adsp.mdt",
338 .pas_id = 1,
e323fc03 339 .has_aggre2_clk = false,
1e140df0 340 .ssr_name = "lpass",
1fb82ee8
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341 .sysmon_name = "adsp",
342 .ssctl_id = 0x14,
c7715e47
AKD
343};
344
3b0d1b65
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345static const struct adsp_data cdsp_resource_init = {
346 .crash_reason_smem = 601,
347 .firmware_name = "cdsp.mdt",
348 .pas_id = 18,
349 .has_aggre2_clk = false,
350 .ssr_name = "cdsp",
351 .sysmon_name = "cdsp",
352 .ssctl_id = 0x17,
353};
354
90a068ed
AKD
355static const struct adsp_data slpi_resource_init = {
356 .crash_reason_smem = 424,
357 .firmware_name = "slpi.mdt",
358 .pas_id = 12,
359 .has_aggre2_clk = true,
1e140df0 360 .ssr_name = "dsps",
1fb82ee8
BA
361 .sysmon_name = "slpi",
362 .ssctl_id = 0x16,
90a068ed
AKD
363};
364
0af93682
BA
365static const struct adsp_data wcss_resource_init = {
366 .crash_reason_smem = 421,
367 .firmware_name = "wcnss.mdt",
368 .pas_id = 6,
369 .ssr_name = "mpss",
370 .sysmon_name = "wcnss",
371 .ssctl_id = 0x12,
372};
373
b9e718e9 374static const struct of_device_id adsp_of_match[] = {
c7715e47
AKD
375 { .compatible = "qcom,msm8974-adsp-pil", .data = &adsp_resource_init},
376 { .compatible = "qcom,msm8996-adsp-pil", .data = &adsp_resource_init},
90a068ed 377 { .compatible = "qcom,msm8996-slpi-pil", .data = &slpi_resource_init},
0af93682
BA
378 { .compatible = "qcom,qcs404-adsp-pas", .data = &adsp_resource_init },
379 { .compatible = "qcom,qcs404-cdsp-pas", .data = &cdsp_resource_init },
380 { .compatible = "qcom,qcs404-wcss-pas", .data = &wcss_resource_init },
3b0d1b65
BA
381 { .compatible = "qcom,sdm845-adsp-pas", .data = &adsp_resource_init},
382 { .compatible = "qcom,sdm845-cdsp-pas", .data = &cdsp_resource_init},
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383 { },
384};
62423472 385MODULE_DEVICE_TABLE(of, adsp_of_match);
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386
387static struct platform_driver adsp_driver = {
388 .probe = adsp_probe,
389 .remove = adsp_remove,
390 .driver = {
9e004f97 391 .name = "qcom_q6v5_pas",
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BA
392 .of_match_table = adsp_of_match,
393 },
394};
395
396module_platform_driver(adsp_driver);
9e004f97 397MODULE_DESCRIPTION("Qualcomm Hexagon v5 Peripheral Authentication Service driver");
b9e718e9 398MODULE_LICENSE("GPL v2");