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1/*
2 * Qualcomm self-authenticating modem subsystem remoteproc driver
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
18#include <linux/clk.h>
19#include <linux/delay.h>
20#include <linux/dma-mapping.h>
21#include <linux/interrupt.h>
22#include <linux/kernel.h>
23#include <linux/mfd/syscon.h>
24#include <linux/module.h>
25#include <linux/of_address.h>
26#include <linux/of_device.h>
27#include <linux/platform_device.h>
28#include <linux/pm_domain.h>
29#include <linux/pm_runtime.h>
30#include <linux/regmap.h>
31#include <linux/regulator/consumer.h>
32#include <linux/remoteproc.h>
33#include <linux/reset.h>
34#include <linux/soc/qcom/mdt_loader.h>
35#include <linux/iopoll.h>
36
37#include "remoteproc_internal.h"
38#include "qcom_common.h"
39#include "qcom_q6v5.h"
40
41#include <linux/qcom_scm.h>
42
43#define MPSS_CRASH_REASON_SMEM 421
44
45/* RMB Status Register Values */
46#define RMB_PBL_SUCCESS 0x1
47
48#define RMB_MBA_XPU_UNLOCKED 0x1
49#define RMB_MBA_XPU_UNLOCKED_SCRIBBLED 0x2
50#define RMB_MBA_META_DATA_AUTH_SUCCESS 0x3
51#define RMB_MBA_AUTH_COMPLETE 0x4
52
53/* PBL/MBA interface registers */
54#define RMB_MBA_IMAGE_REG 0x00
55#define RMB_PBL_STATUS_REG 0x04
56#define RMB_MBA_COMMAND_REG 0x08
57#define RMB_MBA_STATUS_REG 0x0C
58#define RMB_PMI_META_DATA_REG 0x10
59#define RMB_PMI_CODE_START_REG 0x14
60#define RMB_PMI_CODE_LENGTH_REG 0x18
61#define RMB_MBA_MSS_STATUS 0x40
62#define RMB_MBA_ALT_RESET 0x44
63
64#define RMB_CMD_META_DATA_READY 0x1
65#define RMB_CMD_LOAD_READY 0x2
66
67/* QDSP6SS Register Offsets */
68#define QDSP6SS_RESET_REG 0x014
69#define QDSP6SS_GFMUX_CTL_REG 0x020
70#define QDSP6SS_PWR_CTL_REG 0x030
71#define QDSP6SS_MEM_PWR_CTL 0x0B0
72#define QDSP6SS_STRAP_ACC 0x110
73
74/* AXI Halt Register Offsets */
75#define AXI_HALTREQ_REG 0x0
76#define AXI_HALTACK_REG 0x4
77#define AXI_IDLE_REG 0x8
78
79#define HALT_ACK_TIMEOUT_MS 100
80
81/* QDSP6SS_RESET */
82#define Q6SS_STOP_CORE BIT(0)
83#define Q6SS_CORE_ARES BIT(1)
84#define Q6SS_BUS_ARES_ENABLE BIT(2)
85
86/* QDSP6SS_GFMUX_CTL */
87#define Q6SS_CLK_ENABLE BIT(1)
88
89/* QDSP6SS_PWR_CTL */
90#define Q6SS_L2DATA_SLP_NRET_N_0 BIT(0)
91#define Q6SS_L2DATA_SLP_NRET_N_1 BIT(1)
92#define Q6SS_L2DATA_SLP_NRET_N_2 BIT(2)
93#define Q6SS_L2TAG_SLP_NRET_N BIT(16)
94#define Q6SS_ETB_SLP_NRET_N BIT(17)
95#define Q6SS_L2DATA_STBY_N BIT(18)
96#define Q6SS_SLP_RET_N BIT(19)
97#define Q6SS_CLAMP_IO BIT(20)
98#define QDSS_BHS_ON BIT(21)
99#define QDSS_LDO_BYP BIT(22)
100
101/* QDSP6v56 parameters */
102#define QDSP6v56_LDO_BYP BIT(25)
103#define QDSP6v56_BHS_ON BIT(24)
104#define QDSP6v56_CLAMP_WL BIT(21)
105#define QDSP6v56_CLAMP_QMC_MEM BIT(22)
106#define HALT_CHECK_MAX_LOOPS 200
107#define QDSP6SS_XO_CBCR 0x0038
108#define QDSP6SS_ACC_OVERRIDE_VAL 0x20
109
110/* QDSP6v65 parameters */
111#define QDSP6SS_SLEEP 0x3C
112#define QDSP6SS_BOOT_CORE_START 0x400
113#define QDSP6SS_BOOT_CMD 0x404
114#define SLEEP_CHECK_MAX_LOOPS 200
115#define BOOT_FSM_TIMEOUT 10000
116
117struct reg_info {
118 struct regulator *reg;
119 int uV;
120 int uA;
121};
122
123struct qcom_mss_reg_res {
124 const char *supply;
125 int uV;
126 int uA;
127};
128
129struct rproc_hexagon_res {
130 const char *hexagon_mba_image;
131 struct qcom_mss_reg_res *proxy_supply;
132 struct qcom_mss_reg_res *active_supply;
133 char **proxy_clk_names;
134 char **reset_clk_names;
135 char **active_clk_names;
136 char **active_pd_names;
137 char **proxy_pd_names;
138 int version;
139 bool need_mem_protection;
140 bool has_alt_reset;
141};
142
143struct q6v5 {
144 struct device *dev;
145 struct rproc *rproc;
146
147 void __iomem *reg_base;
148 void __iomem *rmb_base;
149
150 struct regmap *halt_map;
151 u32 halt_q6;
152 u32 halt_modem;
153 u32 halt_nc;
154
155 struct reset_control *mss_restart;
156 struct reset_control *pdc_reset;
157
158 struct qcom_q6v5 q6v5;
159
160 struct clk *active_clks[8];
161 struct clk *reset_clks[4];
162 struct clk *proxy_clks[4];
163 struct device *active_pds[1];
164 struct device *proxy_pds[3];
165 int active_clk_count;
166 int reset_clk_count;
167 int proxy_clk_count;
168 int active_pd_count;
169 int proxy_pd_count;
170
171 struct reg_info active_regs[1];
172 struct reg_info proxy_regs[3];
173 int active_reg_count;
174 int proxy_reg_count;
175
176 bool running;
177
178 bool dump_mba_loaded;
179 unsigned long dump_segment_mask;
180 unsigned long dump_complete_mask;
181
182 phys_addr_t mba_phys;
183 void *mba_region;
184 size_t mba_size;
185
186 phys_addr_t mpss_phys;
187 phys_addr_t mpss_reloc;
188 void *mpss_region;
189 size_t mpss_size;
190
191 struct qcom_rproc_glink glink_subdev;
192 struct qcom_rproc_subdev smd_subdev;
193 struct qcom_rproc_ssr ssr_subdev;
194 struct qcom_sysmon *sysmon;
195 bool need_mem_protection;
196 bool has_alt_reset;
197 int mpss_perm;
198 int mba_perm;
199 const char *hexagon_mdt_image;
200 int version;
201};
202
203enum {
204 MSS_MSM8916,
205 MSS_MSM8974,
206 MSS_MSM8996,
207 MSS_SDM845,
208};
209
210static int q6v5_regulator_init(struct device *dev, struct reg_info *regs,
211 const struct qcom_mss_reg_res *reg_res)
212{
213 int rc;
214 int i;
215
216 if (!reg_res)
217 return 0;
218
219 for (i = 0; reg_res[i].supply; i++) {
220 regs[i].reg = devm_regulator_get(dev, reg_res[i].supply);
221 if (IS_ERR(regs[i].reg)) {
222 rc = PTR_ERR(regs[i].reg);
223 if (rc != -EPROBE_DEFER)
224 dev_err(dev, "Failed to get %s\n regulator",
225 reg_res[i].supply);
226 return rc;
227 }
228
229 regs[i].uV = reg_res[i].uV;
230 regs[i].uA = reg_res[i].uA;
231 }
232
233 return i;
234}
235
236static int q6v5_regulator_enable(struct q6v5 *qproc,
237 struct reg_info *regs, int count)
238{
239 int ret;
240 int i;
241
242 for (i = 0; i < count; i++) {
243 if (regs[i].uV > 0) {
244 ret = regulator_set_voltage(regs[i].reg,
245 regs[i].uV, INT_MAX);
246 if (ret) {
247 dev_err(qproc->dev,
248 "Failed to request voltage for %d.\n",
249 i);
250 goto err;
251 }
252 }
253
254 if (regs[i].uA > 0) {
255 ret = regulator_set_load(regs[i].reg,
256 regs[i].uA);
257 if (ret < 0) {
258 dev_err(qproc->dev,
259 "Failed to set regulator mode\n");
260 goto err;
261 }
262 }
263
264 ret = regulator_enable(regs[i].reg);
265 if (ret) {
266 dev_err(qproc->dev, "Regulator enable failed\n");
267 goto err;
268 }
269 }
270
271 return 0;
272err:
273 for (; i >= 0; i--) {
274 if (regs[i].uV > 0)
275 regulator_set_voltage(regs[i].reg, 0, INT_MAX);
276
277 if (regs[i].uA > 0)
278 regulator_set_load(regs[i].reg, 0);
279
280 regulator_disable(regs[i].reg);
281 }
282
283 return ret;
284}
285
286static void q6v5_regulator_disable(struct q6v5 *qproc,
287 struct reg_info *regs, int count)
288{
289 int i;
290
291 for (i = 0; i < count; i++) {
292 if (regs[i].uV > 0)
293 regulator_set_voltage(regs[i].reg, 0, INT_MAX);
294
295 if (regs[i].uA > 0)
296 regulator_set_load(regs[i].reg, 0);
297
298 regulator_disable(regs[i].reg);
299 }
300}
301
302static int q6v5_clk_enable(struct device *dev,
303 struct clk **clks, int count)
304{
305 int rc;
306 int i;
307
308 for (i = 0; i < count; i++) {
309 rc = clk_prepare_enable(clks[i]);
310 if (rc) {
311 dev_err(dev, "Clock enable failed\n");
312 goto err;
313 }
314 }
315
316 return 0;
317err:
318 for (i--; i >= 0; i--)
319 clk_disable_unprepare(clks[i]);
320
321 return rc;
322}
323
324static void q6v5_clk_disable(struct device *dev,
325 struct clk **clks, int count)
326{
327 int i;
328
329 for (i = 0; i < count; i++)
330 clk_disable_unprepare(clks[i]);
331}
332
333static int q6v5_pds_enable(struct q6v5 *qproc, struct device **pds,
334 size_t pd_count)
335{
336 int ret;
337 int i;
338
339 for (i = 0; i < pd_count; i++) {
340 dev_pm_genpd_set_performance_state(pds[i], INT_MAX);
341 ret = pm_runtime_get_sync(pds[i]);
342 if (ret < 0)
343 goto unroll_pd_votes;
344 }
345
346 return 0;
347
348unroll_pd_votes:
349 for (i--; i >= 0; i--) {
350 dev_pm_genpd_set_performance_state(pds[i], 0);
351 pm_runtime_put(pds[i]);
352 }
353
354 return ret;
355};
356
357static void q6v5_pds_disable(struct q6v5 *qproc, struct device **pds,
358 size_t pd_count)
359{
360 int i;
361
362 for (i = 0; i < pd_count; i++) {
363 dev_pm_genpd_set_performance_state(pds[i], 0);
364 pm_runtime_put(pds[i]);
365 }
366}
367
368static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
369 bool remote_owner, phys_addr_t addr,
370 size_t size)
371{
372 struct qcom_scm_vmperm next;
373
374 if (!qproc->need_mem_protection)
375 return 0;
376 if (remote_owner && *current_perm == BIT(QCOM_SCM_VMID_MSS_MSA))
377 return 0;
378 if (!remote_owner && *current_perm == BIT(QCOM_SCM_VMID_HLOS))
379 return 0;
380
381 next.vmid = remote_owner ? QCOM_SCM_VMID_MSS_MSA : QCOM_SCM_VMID_HLOS;
382 next.perm = remote_owner ? QCOM_SCM_PERM_RW : QCOM_SCM_PERM_RWX;
383
384 return qcom_scm_assign_mem(addr, ALIGN(size, SZ_4K),
385 current_perm, &next, 1);
386}
387
388static int q6v5_load(struct rproc *rproc, const struct firmware *fw)
389{
390 struct q6v5 *qproc = rproc->priv;
391
392 memcpy(qproc->mba_region, fw->data, fw->size);
393
394 return 0;
395}
396
397static int q6v5_reset_assert(struct q6v5 *qproc)
398{
399 int ret;
400
401 if (qproc->has_alt_reset) {
402 reset_control_assert(qproc->pdc_reset);
403 ret = reset_control_reset(qproc->mss_restart);
404 reset_control_deassert(qproc->pdc_reset);
405 } else {
406 ret = reset_control_assert(qproc->mss_restart);
407 }
408
409 return ret;
410}
411
412static int q6v5_reset_deassert(struct q6v5 *qproc)
413{
414 int ret;
415
416 if (qproc->has_alt_reset) {
417 reset_control_assert(qproc->pdc_reset);
418 writel(1, qproc->rmb_base + RMB_MBA_ALT_RESET);
419 ret = reset_control_reset(qproc->mss_restart);
420 writel(0, qproc->rmb_base + RMB_MBA_ALT_RESET);
421 reset_control_deassert(qproc->pdc_reset);
422 } else {
423 ret = reset_control_deassert(qproc->mss_restart);
424 }
425
426 return ret;
427}
428
429static int q6v5_rmb_pbl_wait(struct q6v5 *qproc, int ms)
430{
431 unsigned long timeout;
432 s32 val;
433
434 timeout = jiffies + msecs_to_jiffies(ms);
435 for (;;) {
436 val = readl(qproc->rmb_base + RMB_PBL_STATUS_REG);
437 if (val)
438 break;
439
440 if (time_after(jiffies, timeout))
441 return -ETIMEDOUT;
442
443 msleep(1);
444 }
445
446 return val;
447}
448
449static int q6v5_rmb_mba_wait(struct q6v5 *qproc, u32 status, int ms)
450{
451
452 unsigned long timeout;
453 s32 val;
454
455 timeout = jiffies + msecs_to_jiffies(ms);
456 for (;;) {
457 val = readl(qproc->rmb_base + RMB_MBA_STATUS_REG);
458 if (val < 0)
459 break;
460
461 if (!status && val)
462 break;
463 else if (status && val == status)
464 break;
465
466 if (time_after(jiffies, timeout))
467 return -ETIMEDOUT;
468
469 msleep(1);
470 }
471
472 return val;
473}
474
475static int q6v5proc_reset(struct q6v5 *qproc)
476{
477 u32 val;
478 int ret;
479 int i;
480
481 if (qproc->version == MSS_SDM845) {
482 val = readl(qproc->reg_base + QDSP6SS_SLEEP);
483 val |= 0x1;
484 writel(val, qproc->reg_base + QDSP6SS_SLEEP);
485
486 ret = readl_poll_timeout(qproc->reg_base + QDSP6SS_SLEEP,
487 val, !(val & BIT(31)), 1,
488 SLEEP_CHECK_MAX_LOOPS);
489 if (ret) {
490 dev_err(qproc->dev, "QDSP6SS Sleep clock timed out\n");
491 return -ETIMEDOUT;
492 }
493
494 /* De-assert QDSP6 stop core */
495 writel(1, qproc->reg_base + QDSP6SS_BOOT_CORE_START);
496 /* Trigger boot FSM */
497 writel(1, qproc->reg_base + QDSP6SS_BOOT_CMD);
498
499 ret = readl_poll_timeout(qproc->rmb_base + RMB_MBA_MSS_STATUS,
500 val, (val & BIT(0)) != 0, 10, BOOT_FSM_TIMEOUT);
501 if (ret) {
502 dev_err(qproc->dev, "Boot FSM failed to complete.\n");
503 /* Reset the modem so that boot FSM is in reset state */
504 q6v5_reset_deassert(qproc);
505 return ret;
506 }
507
508 goto pbl_wait;
509 } else if (qproc->version == MSS_MSM8996) {
510 /* Override the ACC value if required */
511 writel(QDSP6SS_ACC_OVERRIDE_VAL,
512 qproc->reg_base + QDSP6SS_STRAP_ACC);
513
514 /* Assert resets, stop core */
515 val = readl(qproc->reg_base + QDSP6SS_RESET_REG);
516 val |= Q6SS_CORE_ARES | Q6SS_BUS_ARES_ENABLE | Q6SS_STOP_CORE;
517 writel(val, qproc->reg_base + QDSP6SS_RESET_REG);
518
519 /* BHS require xo cbcr to be enabled */
520 val = readl(qproc->reg_base + QDSP6SS_XO_CBCR);
521 val |= 0x1;
522 writel(val, qproc->reg_base + QDSP6SS_XO_CBCR);
523
524 /* Read CLKOFF bit to go low indicating CLK is enabled */
525 ret = readl_poll_timeout(qproc->reg_base + QDSP6SS_XO_CBCR,
526 val, !(val & BIT(31)), 1,
527 HALT_CHECK_MAX_LOOPS);
528 if (ret) {
529 dev_err(qproc->dev,
530 "xo cbcr enabling timed out (rc:%d)\n", ret);
531 return ret;
532 }
533 /* Enable power block headswitch and wait for it to stabilize */
534 val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
535 val |= QDSP6v56_BHS_ON;
536 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
537 val |= readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
538 udelay(1);
539
540 /* Put LDO in bypass mode */
541 val |= QDSP6v56_LDO_BYP;
542 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
543
544 /* Deassert QDSP6 compiler memory clamp */
545 val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
546 val &= ~QDSP6v56_CLAMP_QMC_MEM;
547 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
548
549 /* Deassert memory peripheral sleep and L2 memory standby */
550 val |= Q6SS_L2DATA_STBY_N | Q6SS_SLP_RET_N;
551 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
552
553 /* Turn on L1, L2, ETB and JU memories 1 at a time */
554 val = readl(qproc->reg_base + QDSP6SS_MEM_PWR_CTL);
555 for (i = 19; i >= 0; i--) {
556 val |= BIT(i);
557 writel(val, qproc->reg_base +
558 QDSP6SS_MEM_PWR_CTL);
559 /*
560 * Read back value to ensure the write is done then
561 * wait for 1us for both memory peripheral and data
562 * array to turn on.
563 */
564 val |= readl(qproc->reg_base + QDSP6SS_MEM_PWR_CTL);
565 udelay(1);
566 }
567 /* Remove word line clamp */
568 val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
569 val &= ~QDSP6v56_CLAMP_WL;
570 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
571 } else {
572 /* Assert resets, stop core */
573 val = readl(qproc->reg_base + QDSP6SS_RESET_REG);
574 val |= Q6SS_CORE_ARES | Q6SS_BUS_ARES_ENABLE | Q6SS_STOP_CORE;
575 writel(val, qproc->reg_base + QDSP6SS_RESET_REG);
576
577 /* Enable power block headswitch and wait for it to stabilize */
578 val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
579 val |= QDSS_BHS_ON | QDSS_LDO_BYP;
580 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
581 val |= readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
582 udelay(1);
583 /*
584 * Turn on memories. L2 banks should be done individually
585 * to minimize inrush current.
586 */
587 val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
588 val |= Q6SS_SLP_RET_N | Q6SS_L2TAG_SLP_NRET_N |
589 Q6SS_ETB_SLP_NRET_N | Q6SS_L2DATA_STBY_N;
590 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
591 val |= Q6SS_L2DATA_SLP_NRET_N_2;
592 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
593 val |= Q6SS_L2DATA_SLP_NRET_N_1;
594 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
595 val |= Q6SS_L2DATA_SLP_NRET_N_0;
596 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
597 }
598 /* Remove IO clamp */
599 val &= ~Q6SS_CLAMP_IO;
600 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
601
602 /* Bring core out of reset */
603 val = readl(qproc->reg_base + QDSP6SS_RESET_REG);
604 val &= ~Q6SS_CORE_ARES;
605 writel(val, qproc->reg_base + QDSP6SS_RESET_REG);
606
607 /* Turn on core clock */
608 val = readl(qproc->reg_base + QDSP6SS_GFMUX_CTL_REG);
609 val |= Q6SS_CLK_ENABLE;
610 writel(val, qproc->reg_base + QDSP6SS_GFMUX_CTL_REG);
611
612 /* Start core execution */
613 val = readl(qproc->reg_base + QDSP6SS_RESET_REG);
614 val &= ~Q6SS_STOP_CORE;
615 writel(val, qproc->reg_base + QDSP6SS_RESET_REG);
616
617pbl_wait:
618 /* Wait for PBL status */
619 ret = q6v5_rmb_pbl_wait(qproc, 1000);
620 if (ret == -ETIMEDOUT) {
621 dev_err(qproc->dev, "PBL boot timed out\n");
622 } else if (ret != RMB_PBL_SUCCESS) {
623 dev_err(qproc->dev, "PBL returned unexpected status %d\n", ret);
624 ret = -EINVAL;
625 } else {
626 ret = 0;
627 }
628
629 return ret;
630}
631
632static void q6v5proc_halt_axi_port(struct q6v5 *qproc,
633 struct regmap *halt_map,
634 u32 offset)
635{
636 unsigned long timeout;
637 unsigned int val;
638 int ret;
639
640 /* Check if we're already idle */
641 ret = regmap_read(halt_map, offset + AXI_IDLE_REG, &val);
642 if (!ret && val)
643 return;
644
645 /* Assert halt request */
646 regmap_write(halt_map, offset + AXI_HALTREQ_REG, 1);
647
648 /* Wait for halt */
649 timeout = jiffies + msecs_to_jiffies(HALT_ACK_TIMEOUT_MS);
650 for (;;) {
651 ret = regmap_read(halt_map, offset + AXI_HALTACK_REG, &val);
652 if (ret || val || time_after(jiffies, timeout))
653 break;
654
655 msleep(1);
656 }
657
658 ret = regmap_read(halt_map, offset + AXI_IDLE_REG, &val);
659 if (ret || !val)
660 dev_err(qproc->dev, "port failed halt\n");
661
662 /* Clear halt request (port will remain halted until reset) */
663 regmap_write(halt_map, offset + AXI_HALTREQ_REG, 0);
664}
665
666static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw)
667{
668 unsigned long dma_attrs = DMA_ATTR_FORCE_CONTIGUOUS;
669 dma_addr_t phys;
670 int mdata_perm;
671 int xferop_ret;
672 void *ptr;
673 int ret;
674
675 ptr = dma_alloc_attrs(qproc->dev, fw->size, &phys, GFP_KERNEL, dma_attrs);
676 if (!ptr) {
677 dev_err(qproc->dev, "failed to allocate mdt buffer\n");
678 return -ENOMEM;
679 }
680
681 memcpy(ptr, fw->data, fw->size);
682
683 /* Hypervisor mapping to access metadata by modem */
684 mdata_perm = BIT(QCOM_SCM_VMID_HLOS);
685 ret = q6v5_xfer_mem_ownership(qproc, &mdata_perm,
686 true, phys, fw->size);
687 if (ret) {
688 dev_err(qproc->dev,
689 "assigning Q6 access to metadata failed: %d\n", ret);
690 ret = -EAGAIN;
691 goto free_dma_attrs;
692 }
693
694 writel(phys, qproc->rmb_base + RMB_PMI_META_DATA_REG);
695 writel(RMB_CMD_META_DATA_READY, qproc->rmb_base + RMB_MBA_COMMAND_REG);
696
697 ret = q6v5_rmb_mba_wait(qproc, RMB_MBA_META_DATA_AUTH_SUCCESS, 1000);
698 if (ret == -ETIMEDOUT)
699 dev_err(qproc->dev, "MPSS header authentication timed out\n");
700 else if (ret < 0)
701 dev_err(qproc->dev, "MPSS header authentication failed: %d\n", ret);
702
703 /* Metadata authentication done, remove modem access */
704 xferop_ret = q6v5_xfer_mem_ownership(qproc, &mdata_perm,
705 false, phys, fw->size);
706 if (xferop_ret)
707 dev_warn(qproc->dev,
708 "mdt buffer not reclaimed system may become unstable\n");
709
710free_dma_attrs:
711 dma_free_attrs(qproc->dev, fw->size, ptr, phys, dma_attrs);
712
713 return ret < 0 ? ret : 0;
714}
715
716static bool q6v5_phdr_valid(const struct elf32_phdr *phdr)
717{
718 if (phdr->p_type != PT_LOAD)
719 return false;
720
721 if ((phdr->p_flags & QCOM_MDT_TYPE_MASK) == QCOM_MDT_TYPE_HASH)
722 return false;
723
724 if (!phdr->p_memsz)
725 return false;
726
727 return true;
728}
729
730static int q6v5_mba_load(struct q6v5 *qproc)
731{
732 int ret;
733 int xfermemop_ret;
734
735 qcom_q6v5_prepare(&qproc->q6v5);
736
737 ret = q6v5_pds_enable(qproc, qproc->active_pds, qproc->active_pd_count);
738 if (ret < 0) {
739 dev_err(qproc->dev, "failed to enable active power domains\n");
740 goto disable_irqs;
741 }
742
743 ret = q6v5_pds_enable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
744 if (ret < 0) {
745 dev_err(qproc->dev, "failed to enable proxy power domains\n");
746 goto disable_active_pds;
747 }
748
749 ret = q6v5_regulator_enable(qproc, qproc->proxy_regs,
750 qproc->proxy_reg_count);
751 if (ret) {
752 dev_err(qproc->dev, "failed to enable proxy supplies\n");
753 goto disable_proxy_pds;
754 }
755
756 ret = q6v5_clk_enable(qproc->dev, qproc->proxy_clks,
757 qproc->proxy_clk_count);
758 if (ret) {
759 dev_err(qproc->dev, "failed to enable proxy clocks\n");
760 goto disable_proxy_reg;
761 }
762
763 ret = q6v5_regulator_enable(qproc, qproc->active_regs,
764 qproc->active_reg_count);
765 if (ret) {
766 dev_err(qproc->dev, "failed to enable supplies\n");
767 goto disable_proxy_clk;
768 }
769
770 ret = q6v5_clk_enable(qproc->dev, qproc->reset_clks,
771 qproc->reset_clk_count);
772 if (ret) {
773 dev_err(qproc->dev, "failed to enable reset clocks\n");
774 goto disable_vdd;
775 }
776
777 ret = q6v5_reset_deassert(qproc);
778 if (ret) {
779 dev_err(qproc->dev, "failed to deassert mss restart\n");
780 goto disable_reset_clks;
781 }
782
783 ret = q6v5_clk_enable(qproc->dev, qproc->active_clks,
784 qproc->active_clk_count);
785 if (ret) {
786 dev_err(qproc->dev, "failed to enable clocks\n");
787 goto assert_reset;
788 }
789
790 /* Assign MBA image access in DDR to q6 */
791 ret = q6v5_xfer_mem_ownership(qproc, &qproc->mba_perm, true,
792 qproc->mba_phys, qproc->mba_size);
793 if (ret) {
794 dev_err(qproc->dev,
795 "assigning Q6 access to mba memory failed: %d\n", ret);
796 goto disable_active_clks;
797 }
798
799 writel(qproc->mba_phys, qproc->rmb_base + RMB_MBA_IMAGE_REG);
800
801 ret = q6v5proc_reset(qproc);
802 if (ret)
803 goto reclaim_mba;
804
805 ret = q6v5_rmb_mba_wait(qproc, 0, 5000);
806 if (ret == -ETIMEDOUT) {
807 dev_err(qproc->dev, "MBA boot timed out\n");
808 goto halt_axi_ports;
809 } else if (ret != RMB_MBA_XPU_UNLOCKED &&
810 ret != RMB_MBA_XPU_UNLOCKED_SCRIBBLED) {
811 dev_err(qproc->dev, "MBA returned unexpected status %d\n", ret);
812 ret = -EINVAL;
813 goto halt_axi_ports;
814 }
815
816 qproc->dump_mba_loaded = true;
817 return 0;
818
819halt_axi_ports:
820 q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
821 q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
822 q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
823
824reclaim_mba:
825 xfermemop_ret = q6v5_xfer_mem_ownership(qproc, &qproc->mba_perm, false,
826 qproc->mba_phys,
827 qproc->mba_size);
828 if (xfermemop_ret) {
829 dev_err(qproc->dev,
830 "Failed to reclaim mba buffer, system may become unstable\n");
831 }
832
833disable_active_clks:
834 q6v5_clk_disable(qproc->dev, qproc->active_clks,
835 qproc->active_clk_count);
836assert_reset:
837 q6v5_reset_assert(qproc);
838disable_reset_clks:
839 q6v5_clk_disable(qproc->dev, qproc->reset_clks,
840 qproc->reset_clk_count);
841disable_vdd:
842 q6v5_regulator_disable(qproc, qproc->active_regs,
843 qproc->active_reg_count);
844disable_proxy_clk:
845 q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
846 qproc->proxy_clk_count);
847disable_proxy_reg:
848 q6v5_regulator_disable(qproc, qproc->proxy_regs,
849 qproc->proxy_reg_count);
850disable_proxy_pds:
851 q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
852disable_active_pds:
853 q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
854disable_irqs:
855 qcom_q6v5_unprepare(&qproc->q6v5);
856
857 return ret;
858}
859
860static void q6v5_mba_reclaim(struct q6v5 *qproc)
861{
862 int ret;
863 u32 val;
864
865 qproc->dump_mba_loaded = false;
866
867 q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
868 q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
869 q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
870 if (qproc->version == MSS_MSM8996) {
871 /*
872 * To avoid high MX current during LPASS/MSS restart.
873 */
874 val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
875 val |= Q6SS_CLAMP_IO | QDSP6v56_CLAMP_WL |
876 QDSP6v56_CLAMP_QMC_MEM;
877 writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
878 }
879
880 ret = q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm,
881 false, qproc->mpss_phys,
882 qproc->mpss_size);
883 WARN_ON(ret);
884
885 q6v5_reset_assert(qproc);
886
887 q6v5_clk_disable(qproc->dev, qproc->reset_clks,
888 qproc->reset_clk_count);
889 q6v5_clk_disable(qproc->dev, qproc->active_clks,
890 qproc->active_clk_count);
891 q6v5_regulator_disable(qproc, qproc->active_regs,
892 qproc->active_reg_count);
893 q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
894
895 /* In case of failure or coredump scenario where reclaiming MBA memory
896 * could not happen reclaim it here.
897 */
898 ret = q6v5_xfer_mem_ownership(qproc, &qproc->mba_perm, false,
899 qproc->mba_phys,
900 qproc->mba_size);
901 WARN_ON(ret);
902
903 ret = qcom_q6v5_unprepare(&qproc->q6v5);
904 if (ret) {
905 q6v5_pds_disable(qproc, qproc->proxy_pds,
906 qproc->proxy_pd_count);
907 q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
908 qproc->proxy_clk_count);
909 q6v5_regulator_disable(qproc, qproc->proxy_regs,
910 qproc->proxy_reg_count);
911 }
912}
913
914static int q6v5_mpss_load(struct q6v5 *qproc)
915{
916 const struct elf32_phdr *phdrs;
917 const struct elf32_phdr *phdr;
918 const struct firmware *seg_fw;
919 const struct firmware *fw;
920 struct elf32_hdr *ehdr;
921 phys_addr_t mpss_reloc;
922 phys_addr_t boot_addr;
923 phys_addr_t min_addr = PHYS_ADDR_MAX;
924 phys_addr_t max_addr = 0;
925 bool relocate = false;
926 char *fw_name;
927 size_t fw_name_len;
928 ssize_t offset;
929 size_t size = 0;
930 void *ptr;
931 int ret;
932 int i;
933
934 fw_name_len = strlen(qproc->hexagon_mdt_image);
935 if (fw_name_len <= 4)
936 return -EINVAL;
937
938 fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
939 if (!fw_name)
940 return -ENOMEM;
941
942 ret = request_firmware(&fw, fw_name, qproc->dev);
943 if (ret < 0) {
944 dev_err(qproc->dev, "unable to load %s\n", fw_name);
945 goto out;
946 }
947
948 /* Initialize the RMB validator */
949 writel(0, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
950
951 ret = q6v5_mpss_init_image(qproc, fw);
952 if (ret)
953 goto release_firmware;
954
955 ehdr = (struct elf32_hdr *)fw->data;
956 phdrs = (struct elf32_phdr *)(ehdr + 1);
957
958 for (i = 0; i < ehdr->e_phnum; i++) {
959 phdr = &phdrs[i];
960
961 if (!q6v5_phdr_valid(phdr))
962 continue;
963
964 if (phdr->p_flags & QCOM_MDT_RELOCATABLE)
965 relocate = true;
966
967 if (phdr->p_paddr < min_addr)
968 min_addr = phdr->p_paddr;
969
970 if (phdr->p_paddr + phdr->p_memsz > max_addr)
971 max_addr = ALIGN(phdr->p_paddr + phdr->p_memsz, SZ_4K);
972 }
973
974 mpss_reloc = relocate ? min_addr : qproc->mpss_phys;
975 qproc->mpss_reloc = mpss_reloc;
976 /* Load firmware segments */
977 for (i = 0; i < ehdr->e_phnum; i++) {
978 phdr = &phdrs[i];
979
980 if (!q6v5_phdr_valid(phdr))
981 continue;
982
983 offset = phdr->p_paddr - mpss_reloc;
984 if (offset < 0 || offset + phdr->p_memsz > qproc->mpss_size) {
985 dev_err(qproc->dev, "segment outside memory range\n");
986 ret = -EINVAL;
987 goto release_firmware;
988 }
989
990 ptr = qproc->mpss_region + offset;
991
992 if (phdr->p_filesz) {
993 /* Replace "xxx.xxx" with "xxx.bxx" */
994 sprintf(fw_name + fw_name_len - 3, "b%02d", i);
995 ret = request_firmware(&seg_fw, fw_name, qproc->dev);
996 if (ret) {
997 dev_err(qproc->dev, "failed to load %s\n", fw_name);
998 goto release_firmware;
999 }
1000
1001 memcpy(ptr, seg_fw->data, seg_fw->size);
1002
1003 release_firmware(seg_fw);
1004 }
1005
1006 if (phdr->p_memsz > phdr->p_filesz) {
1007 memset(ptr + phdr->p_filesz, 0,
1008 phdr->p_memsz - phdr->p_filesz);
1009 }
1010 size += phdr->p_memsz;
1011 }
1012
1013 /* Transfer ownership of modem ddr region to q6 */
1014 ret = q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm, true,
1015 qproc->mpss_phys, qproc->mpss_size);
1016 if (ret) {
1017 dev_err(qproc->dev,
1018 "assigning Q6 access to mpss memory failed: %d\n", ret);
1019 ret = -EAGAIN;
1020 goto release_firmware;
1021 }
1022
1023 boot_addr = relocate ? qproc->mpss_phys : min_addr;
1024 writel(boot_addr, qproc->rmb_base + RMB_PMI_CODE_START_REG);
1025 writel(RMB_CMD_LOAD_READY, qproc->rmb_base + RMB_MBA_COMMAND_REG);
1026 writel(size, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
1027
1028 ret = q6v5_rmb_mba_wait(qproc, RMB_MBA_AUTH_COMPLETE, 10000);
1029 if (ret == -ETIMEDOUT)
1030 dev_err(qproc->dev, "MPSS authentication timed out\n");
1031 else if (ret < 0)
1032 dev_err(qproc->dev, "MPSS authentication failed: %d\n", ret);
1033
1034release_firmware:
1035 release_firmware(fw);
1036out:
1037 kfree(fw_name);
1038
1039 return ret < 0 ? ret : 0;
1040}
1041
1042static void qcom_q6v5_dump_segment(struct rproc *rproc,
1043 struct rproc_dump_segment *segment,
1044 void *dest)
1045{
1046 int ret = 0;
1047 struct q6v5 *qproc = rproc->priv;
1048 unsigned long mask = BIT((unsigned long)segment->priv);
1049 void *ptr = rproc_da_to_va(rproc, segment->da, segment->size);
1050
1051 /* Unlock mba before copying segments */
1052 if (!qproc->dump_mba_loaded)
1053 ret = q6v5_mba_load(qproc);
1054
1055 if (!ptr || ret)
1056 memset(dest, 0xff, segment->size);
1057 else
1058 memcpy(dest, ptr, segment->size);
1059
1060 qproc->dump_segment_mask |= mask;
1061
1062 /* Reclaim mba after copying segments */
1063 if (qproc->dump_segment_mask == qproc->dump_complete_mask) {
1064 if (qproc->dump_mba_loaded)
1065 q6v5_mba_reclaim(qproc);
1066 }
1067}
1068
1069static int q6v5_start(struct rproc *rproc)
1070{
1071 struct q6v5 *qproc = (struct q6v5 *)rproc->priv;
1072 int xfermemop_ret;
1073 int ret;
1074
1075 ret = q6v5_mba_load(qproc);
1076 if (ret)
1077 return ret;
1078
1079 dev_info(qproc->dev, "MBA booted, loading mpss\n");
1080
1081 ret = q6v5_mpss_load(qproc);
1082 if (ret)
1083 goto reclaim_mpss;
1084
1085 ret = qcom_q6v5_wait_for_start(&qproc->q6v5, msecs_to_jiffies(5000));
1086 if (ret == -ETIMEDOUT) {
1087 dev_err(qproc->dev, "start timed out\n");
1088 goto reclaim_mpss;
1089 }
1090
1091 xfermemop_ret = q6v5_xfer_mem_ownership(qproc, &qproc->mba_perm, false,
1092 qproc->mba_phys,
1093 qproc->mba_size);
1094 if (xfermemop_ret)
1095 dev_err(qproc->dev,
1096 "Failed to reclaim mba buffer system may become unstable\n");
1097
1098 /* Reset Dump Segment Mask */
1099 qproc->dump_segment_mask = 0;
1100 qproc->running = true;
1101
1102 return 0;
1103
1104reclaim_mpss:
1105 xfermemop_ret = q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm,
1106 false, qproc->mpss_phys,
1107 qproc->mpss_size);
1108 WARN_ON(xfermemop_ret);
1109 q6v5_mba_reclaim(qproc);
1110
1111 return ret;
1112}
1113
1114static int q6v5_stop(struct rproc *rproc)
1115{
1116 struct q6v5 *qproc = (struct q6v5 *)rproc->priv;
1117 int ret;
1118
1119 qproc->running = false;
1120
1121 ret = qcom_q6v5_request_stop(&qproc->q6v5);
1122 if (ret == -ETIMEDOUT)
1123 dev_err(qproc->dev, "timed out on wait\n");
1124
1125 q6v5_mba_reclaim(qproc);
1126
1127 return 0;
1128}
1129
1130static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len)
1131{
1132 struct q6v5 *qproc = rproc->priv;
1133 int offset;
1134
1135 offset = da - qproc->mpss_reloc;
1136 if (offset < 0 || offset + len > qproc->mpss_size)
1137 return NULL;
1138
1139 return qproc->mpss_region + offset;
1140}
1141
1142static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
1143 const struct firmware *mba_fw)
1144{
1145 const struct firmware *fw;
1146 const struct elf32_phdr *phdrs;
1147 const struct elf32_phdr *phdr;
1148 const struct elf32_hdr *ehdr;
1149 struct q6v5 *qproc = rproc->priv;
1150 unsigned long i;
1151 int ret;
1152
1153 ret = request_firmware(&fw, qproc->hexagon_mdt_image, qproc->dev);
1154 if (ret < 0) {
1155 dev_err(qproc->dev, "unable to load %s\n",
1156 qproc->hexagon_mdt_image);
1157 return ret;
1158 }
1159
1160 ehdr = (struct elf32_hdr *)fw->data;
1161 phdrs = (struct elf32_phdr *)(ehdr + 1);
1162 qproc->dump_complete_mask = 0;
1163
1164 for (i = 0; i < ehdr->e_phnum; i++) {
1165 phdr = &phdrs[i];
1166
1167 if (!q6v5_phdr_valid(phdr))
1168 continue;
1169
1170 ret = rproc_coredump_add_custom_segment(rproc, phdr->p_paddr,
1171 phdr->p_memsz,
1172 qcom_q6v5_dump_segment,
1173 (void *)i);
1174 if (ret)
1175 break;
1176
1177 qproc->dump_complete_mask |= BIT(i);
1178 }
1179
1180 release_firmware(fw);
1181 return ret;
1182}
1183
1184static const struct rproc_ops q6v5_ops = {
1185 .start = q6v5_start,
1186 .stop = q6v5_stop,
1187 .da_to_va = q6v5_da_to_va,
1188 .parse_fw = qcom_q6v5_register_dump_segments,
1189 .load = q6v5_load,
1190};
1191
1192static void qcom_msa_handover(struct qcom_q6v5 *q6v5)
1193{
1194 struct q6v5 *qproc = container_of(q6v5, struct q6v5, q6v5);
1195
1196 q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
1197 qproc->proxy_clk_count);
1198 q6v5_regulator_disable(qproc, qproc->proxy_regs,
1199 qproc->proxy_reg_count);
1200 q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
1201}
1202
1203static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
1204{
1205 struct of_phandle_args args;
1206 struct resource *res;
1207 int ret;
1208
1209 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qdsp6");
1210 qproc->reg_base = devm_ioremap_resource(&pdev->dev, res);
1211 if (IS_ERR(qproc->reg_base))
1212 return PTR_ERR(qproc->reg_base);
1213
1214 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rmb");
1215 qproc->rmb_base = devm_ioremap_resource(&pdev->dev, res);
1216 if (IS_ERR(qproc->rmb_base))
1217 return PTR_ERR(qproc->rmb_base);
1218
1219 ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
1220 "qcom,halt-regs", 3, 0, &args);
1221 if (ret < 0) {
1222 dev_err(&pdev->dev, "failed to parse qcom,halt-regs\n");
1223 return -EINVAL;
1224 }
1225
1226 qproc->halt_map = syscon_node_to_regmap(args.np);
1227 of_node_put(args.np);
1228 if (IS_ERR(qproc->halt_map))
1229 return PTR_ERR(qproc->halt_map);
1230
1231 qproc->halt_q6 = args.args[0];
1232 qproc->halt_modem = args.args[1];
1233 qproc->halt_nc = args.args[2];
1234
1235 return 0;
1236}
1237
1238static int q6v5_init_clocks(struct device *dev, struct clk **clks,
1239 char **clk_names)
1240{
1241 int i;
1242
1243 if (!clk_names)
1244 return 0;
1245
1246 for (i = 0; clk_names[i]; i++) {
1247 clks[i] = devm_clk_get(dev, clk_names[i]);
1248 if (IS_ERR(clks[i])) {
1249 int rc = PTR_ERR(clks[i]);
1250
1251 if (rc != -EPROBE_DEFER)
1252 dev_err(dev, "Failed to get %s clock\n",
1253 clk_names[i]);
1254 return rc;
1255 }
1256 }
1257
1258 return i;
1259}
1260
1261static int q6v5_pds_attach(struct device *dev, struct device **devs,
1262 char **pd_names)
1263{
1264 size_t num_pds = 0;
1265 int ret;
1266 int i;
1267
1268 if (!pd_names)
1269 return 0;
1270
1271 while (pd_names[num_pds])
1272 num_pds++;
1273
1274 for (i = 0; i < num_pds; i++) {
1275 devs[i] = dev_pm_domain_attach_by_name(dev, pd_names[i]);
1276 if (IS_ERR(devs[i])) {
1277 ret = PTR_ERR(devs[i]);
1278 goto unroll_attach;
1279 }
1280 }
1281
1282 return num_pds;
1283
1284unroll_attach:
1285 for (i--; i >= 0; i--)
1286 dev_pm_domain_detach(devs[i], false);
1287
1288 return ret;
1289};
1290
1291static void q6v5_pds_detach(struct q6v5 *qproc, struct device **pds,
1292 size_t pd_count)
1293{
1294 int i;
1295
1296 for (i = 0; i < pd_count; i++)
1297 dev_pm_domain_detach(pds[i], false);
1298}
1299
1300static int q6v5_init_reset(struct q6v5 *qproc)
1301{
1302 qproc->mss_restart = devm_reset_control_get_exclusive(qproc->dev,
1303 "mss_restart");
1304 if (IS_ERR(qproc->mss_restart)) {
1305 dev_err(qproc->dev, "failed to acquire mss restart\n");
1306 return PTR_ERR(qproc->mss_restart);
1307 }
1308
1309 if (qproc->has_alt_reset) {
1310 qproc->pdc_reset = devm_reset_control_get_exclusive(qproc->dev,
1311 "pdc_reset");
1312 if (IS_ERR(qproc->pdc_reset)) {
1313 dev_err(qproc->dev, "failed to acquire pdc reset\n");
1314 return PTR_ERR(qproc->pdc_reset);
1315 }
1316 }
1317
1318 return 0;
1319}
1320
1321static int q6v5_alloc_memory_region(struct q6v5 *qproc)
1322{
1323 struct device_node *child;
1324 struct device_node *node;
1325 struct resource r;
1326 int ret;
1327
1328 child = of_get_child_by_name(qproc->dev->of_node, "mba");
1329 node = of_parse_phandle(child, "memory-region", 0);
1330 ret = of_address_to_resource(node, 0, &r);
1331 if (ret) {
1332 dev_err(qproc->dev, "unable to resolve mba region\n");
1333 return ret;
1334 }
1335 of_node_put(node);
1336
1337 qproc->mba_phys = r.start;
1338 qproc->mba_size = resource_size(&r);
1339 qproc->mba_region = devm_ioremap_wc(qproc->dev, qproc->mba_phys, qproc->mba_size);
1340 if (!qproc->mba_region) {
1341 dev_err(qproc->dev, "unable to map memory region: %pa+%zx\n",
1342 &r.start, qproc->mba_size);
1343 return -EBUSY;
1344 }
1345
1346 child = of_get_child_by_name(qproc->dev->of_node, "mpss");
1347 node = of_parse_phandle(child, "memory-region", 0);
1348 ret = of_address_to_resource(node, 0, &r);
1349 if (ret) {
1350 dev_err(qproc->dev, "unable to resolve mpss region\n");
1351 return ret;
1352 }
1353 of_node_put(node);
1354
1355 qproc->mpss_phys = qproc->mpss_reloc = r.start;
1356 qproc->mpss_size = resource_size(&r);
1357 qproc->mpss_region = devm_ioremap_wc(qproc->dev, qproc->mpss_phys, qproc->mpss_size);
1358 if (!qproc->mpss_region) {
1359 dev_err(qproc->dev, "unable to map memory region: %pa+%zx\n",
1360 &r.start, qproc->mpss_size);
1361 return -EBUSY;
1362 }
1363
1364 return 0;
1365}
1366
1367static int q6v5_probe(struct platform_device *pdev)
1368{
1369 const struct rproc_hexagon_res *desc;
1370 struct q6v5 *qproc;
1371 struct rproc *rproc;
1372 const char *mba_image;
1373 int ret;
1374
1375 desc = of_device_get_match_data(&pdev->dev);
1376 if (!desc)
1377 return -EINVAL;
1378
1379 if (desc->need_mem_protection && !qcom_scm_is_available())
1380 return -EPROBE_DEFER;
1381
1382 mba_image = desc->hexagon_mba_image;
1383 ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
1384 0, &mba_image);
1385 if (ret < 0 && ret != -EINVAL)
1386 return ret;
1387
1388 rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_ops,
1389 mba_image, sizeof(*qproc));
1390 if (!rproc) {
1391 dev_err(&pdev->dev, "failed to allocate rproc\n");
1392 return -ENOMEM;
1393 }
1394
1395 rproc->auto_boot = false;
1396
1397 qproc = (struct q6v5 *)rproc->priv;
1398 qproc->dev = &pdev->dev;
1399 qproc->rproc = rproc;
1400 qproc->hexagon_mdt_image = "modem.mdt";
1401 ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
1402 1, &qproc->hexagon_mdt_image);
1403 if (ret < 0 && ret != -EINVAL)
1404 return ret;
1405
1406 platform_set_drvdata(pdev, qproc);
1407
1408 ret = q6v5_init_mem(qproc, pdev);
1409 if (ret)
1410 goto free_rproc;
1411
1412 ret = q6v5_alloc_memory_region(qproc);
1413 if (ret)
1414 goto free_rproc;
1415
1416 ret = q6v5_init_clocks(&pdev->dev, qproc->proxy_clks,
1417 desc->proxy_clk_names);
1418 if (ret < 0) {
1419 dev_err(&pdev->dev, "Failed to get proxy clocks.\n");
1420 goto free_rproc;
1421 }
1422 qproc->proxy_clk_count = ret;
1423
1424 ret = q6v5_init_clocks(&pdev->dev, qproc->reset_clks,
1425 desc->reset_clk_names);
1426 if (ret < 0) {
1427 dev_err(&pdev->dev, "Failed to get reset clocks.\n");
1428 goto free_rproc;
1429 }
1430 qproc->reset_clk_count = ret;
1431
1432 ret = q6v5_init_clocks(&pdev->dev, qproc->active_clks,
1433 desc->active_clk_names);
1434 if (ret < 0) {
1435 dev_err(&pdev->dev, "Failed to get active clocks.\n");
1436 goto free_rproc;
1437 }
1438 qproc->active_clk_count = ret;
1439
1440 ret = q6v5_regulator_init(&pdev->dev, qproc->proxy_regs,
1441 desc->proxy_supply);
1442 if (ret < 0) {
1443 dev_err(&pdev->dev, "Failed to get proxy regulators.\n");
1444 goto free_rproc;
1445 }
1446 qproc->proxy_reg_count = ret;
1447
1448 ret = q6v5_regulator_init(&pdev->dev, qproc->active_regs,
1449 desc->active_supply);
1450 if (ret < 0) {
1451 dev_err(&pdev->dev, "Failed to get active regulators.\n");
1452 goto free_rproc;
1453 }
1454 qproc->active_reg_count = ret;
1455
1456 ret = q6v5_pds_attach(&pdev->dev, qproc->active_pds,
1457 desc->active_pd_names);
1458 if (ret < 0) {
1459 dev_err(&pdev->dev, "Failed to attach active power domains\n");
1460 goto free_rproc;
1461 }
1462 qproc->active_pd_count = ret;
1463
1464 ret = q6v5_pds_attach(&pdev->dev, qproc->proxy_pds,
1465 desc->proxy_pd_names);
1466 if (ret < 0) {
1467 dev_err(&pdev->dev, "Failed to init power domains\n");
1468 goto detach_active_pds;
1469 }
1470 qproc->proxy_pd_count = ret;
1471
1472 qproc->has_alt_reset = desc->has_alt_reset;
1473 ret = q6v5_init_reset(qproc);
1474 if (ret)
1475 goto detach_proxy_pds;
1476
1477 qproc->version = desc->version;
1478 qproc->need_mem_protection = desc->need_mem_protection;
1479
1480 ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM,
1481 qcom_msa_handover);
1482 if (ret)
1483 goto detach_proxy_pds;
1484
1485 qproc->mpss_perm = BIT(QCOM_SCM_VMID_HLOS);
1486 qproc->mba_perm = BIT(QCOM_SCM_VMID_HLOS);
1487 qcom_add_glink_subdev(rproc, &qproc->glink_subdev);
1488 qcom_add_smd_subdev(rproc, &qproc->smd_subdev);
1489 qcom_add_ssr_subdev(rproc, &qproc->ssr_subdev, "mpss");
1490 qproc->sysmon = qcom_add_sysmon_subdev(rproc, "modem", 0x12);
1491 if (IS_ERR(qproc->sysmon)) {
1492 ret = PTR_ERR(qproc->sysmon);
1493 goto detach_proxy_pds;
1494 }
1495
1496 ret = rproc_add(rproc);
1497 if (ret)
1498 goto detach_proxy_pds;
1499
1500 return 0;
1501
1502detach_proxy_pds:
1503 q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
1504detach_active_pds:
1505 q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
1506free_rproc:
1507 rproc_free(rproc);
1508
1509 return ret;
1510}
1511
1512static int q6v5_remove(struct platform_device *pdev)
1513{
1514 struct q6v5 *qproc = platform_get_drvdata(pdev);
1515
1516 rproc_del(qproc->rproc);
1517
1518 qcom_remove_sysmon_subdev(qproc->sysmon);
1519 qcom_remove_glink_subdev(qproc->rproc, &qproc->glink_subdev);
1520 qcom_remove_smd_subdev(qproc->rproc, &qproc->smd_subdev);
1521 qcom_remove_ssr_subdev(qproc->rproc, &qproc->ssr_subdev);
1522
1523 q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
1524 q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
1525
1526 rproc_free(qproc->rproc);
1527
1528 return 0;
1529}
1530
1531static const struct rproc_hexagon_res sdm845_mss = {
1532 .hexagon_mba_image = "mba.mbn",
1533 .proxy_clk_names = (char*[]){
1534 "xo",
1535 "prng",
1536 NULL
1537 },
1538 .reset_clk_names = (char*[]){
1539 "iface",
1540 "snoc_axi",
1541 NULL
1542 },
1543 .active_clk_names = (char*[]){
1544 "bus",
1545 "mem",
1546 "gpll0_mss",
1547 "mnoc_axi",
1548 NULL
1549 },
1550 .active_pd_names = (char*[]){
1551 "load_state",
1552 NULL
1553 },
1554 .proxy_pd_names = (char*[]){
1555 "cx",
1556 "mx",
1557 "mss",
1558 NULL
1559 },
1560 .need_mem_protection = true,
1561 .has_alt_reset = true,
1562 .version = MSS_SDM845,
1563};
1564
1565static const struct rproc_hexagon_res msm8996_mss = {
1566 .hexagon_mba_image = "mba.mbn",
1567 .proxy_supply = (struct qcom_mss_reg_res[]) {
1568 {
1569 .supply = "pll",
1570 .uA = 100000,
1571 },
1572 {}
1573 },
1574 .proxy_clk_names = (char*[]){
1575 "xo",
1576 "pnoc",
1577 "qdss",
1578 NULL
1579 },
1580 .active_clk_names = (char*[]){
1581 "iface",
1582 "bus",
1583 "mem",
1584 "gpll0_mss",
1585 "snoc_axi",
1586 "mnoc_axi",
1587 NULL
1588 },
1589 .need_mem_protection = true,
1590 .has_alt_reset = false,
1591 .version = MSS_MSM8996,
1592};
1593
1594static const struct rproc_hexagon_res msm8916_mss = {
1595 .hexagon_mba_image = "mba.mbn",
1596 .proxy_supply = (struct qcom_mss_reg_res[]) {
1597 {
1598 .supply = "mx",
1599 .uV = 1050000,
1600 },
1601 {
1602 .supply = "cx",
1603 .uA = 100000,
1604 },
1605 {
1606 .supply = "pll",
1607 .uA = 100000,
1608 },
1609 {}
1610 },
1611 .proxy_clk_names = (char*[]){
1612 "xo",
1613 NULL
1614 },
1615 .active_clk_names = (char*[]){
1616 "iface",
1617 "bus",
1618 "mem",
1619 NULL
1620 },
1621 .need_mem_protection = false,
1622 .has_alt_reset = false,
1623 .version = MSS_MSM8916,
1624};
1625
1626static const struct rproc_hexagon_res msm8974_mss = {
1627 .hexagon_mba_image = "mba.b00",
1628 .proxy_supply = (struct qcom_mss_reg_res[]) {
1629 {
1630 .supply = "mx",
1631 .uV = 1050000,
1632 },
1633 {
1634 .supply = "cx",
1635 .uA = 100000,
1636 },
1637 {
1638 .supply = "pll",
1639 .uA = 100000,
1640 },
1641 {}
1642 },
1643 .active_supply = (struct qcom_mss_reg_res[]) {
1644 {
1645 .supply = "mss",
1646 .uV = 1050000,
1647 .uA = 100000,
1648 },
1649 {}
1650 },
1651 .proxy_clk_names = (char*[]){
1652 "xo",
1653 NULL
1654 },
1655 .active_clk_names = (char*[]){
1656 "iface",
1657 "bus",
1658 "mem",
1659 NULL
1660 },
1661 .need_mem_protection = false,
1662 .has_alt_reset = false,
1663 .version = MSS_MSM8974,
1664};
1665
1666static const struct of_device_id q6v5_of_match[] = {
1667 { .compatible = "qcom,q6v5-pil", .data = &msm8916_mss},
1668 { .compatible = "qcom,msm8916-mss-pil", .data = &msm8916_mss},
1669 { .compatible = "qcom,msm8974-mss-pil", .data = &msm8974_mss},
1670 { .compatible = "qcom,msm8996-mss-pil", .data = &msm8996_mss},
1671 { .compatible = "qcom,sdm845-mss-pil", .data = &sdm845_mss},
1672 { },
1673};
1674MODULE_DEVICE_TABLE(of, q6v5_of_match);
1675
1676static struct platform_driver q6v5_driver = {
1677 .probe = q6v5_probe,
1678 .remove = q6v5_remove,
1679 .driver = {
1680 .name = "qcom-q6v5-mss",
1681 .of_match_table = q6v5_of_match,
1682 },
1683};
1684module_platform_driver(q6v5_driver);
1685
1686MODULE_DESCRIPTION("Qualcomm Self-authenticating modem remoteproc driver");
1687MODULE_LICENSE("GPL v2");
1688

Warning: That file was not part of the compilation database. It may have many parsing errors.