Rajesh Kemisetti | 78f5bc9 | 2020-01-21 18:30:12 +0530 | [diff] [blame^] | 1 | /* Copyright (c) 2012-2020 The Linux Foundation. All rights reserved. |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include "kgsl.h" |
| 14 | #include "kgsl_sharedmem.h" |
| 15 | #include "kgsl_snapshot.h" |
| 16 | |
| 17 | #include "adreno.h" |
| 18 | #include "adreno_pm4types.h" |
| 19 | #include "a3xx_reg.h" |
| 20 | #include "adreno_cp_parser.h" |
| 21 | #include "adreno_snapshot.h" |
| 22 | #include "adreno_a5xx.h" |
| 23 | |
| 24 | #define VPC_MEMORY_BANKS 4 |
| 25 | |
| 26 | /* Maintain a list of the objects we see during parsing */ |
| 27 | |
| 28 | #define SNAPSHOT_OBJ_BUFSIZE 64 |
| 29 | |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 30 | /* Used to print error message if an IB has too many objects in it */ |
| 31 | static int ib_max_objs; |
| 32 | |
| 33 | struct snapshot_rb_params { |
| 34 | struct kgsl_snapshot *snapshot; |
| 35 | struct adreno_ringbuffer *rb; |
| 36 | }; |
| 37 | |
| 38 | /* Keep track of how many bytes are frozen after a snapshot and tell the user */ |
| 39 | static size_t snapshot_frozen_objsize; |
| 40 | |
| 41 | static struct kgsl_snapshot_object objbuf[SNAPSHOT_OBJ_BUFSIZE]; |
| 42 | |
| 43 | /* Pointer to the next open entry in the object list */ |
| 44 | static unsigned int objbufptr; |
| 45 | |
| 46 | static inline int adreno_rb_ctxtswitch(struct adreno_device *adreno_dev, |
| 47 | unsigned int *cmd) |
| 48 | { |
| 49 | return cmd[0] == cp_packet(adreno_dev, CP_NOP, 1) && |
| 50 | cmd[1] == KGSL_CONTEXT_TO_MEM_IDENTIFIER; |
| 51 | } |
| 52 | |
| 53 | /* Push a new buffer object onto the list */ |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 54 | void kgsl_snapshot_push_object(struct kgsl_process_private *process, |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 55 | uint64_t gpuaddr, uint64_t dwords) |
| 56 | { |
| 57 | int index; |
| 58 | struct kgsl_mem_entry *entry; |
| 59 | |
| 60 | if (process == NULL) |
| 61 | return; |
| 62 | |
| 63 | /* |
| 64 | * Sometimes IBs can be reused in the same dump. Because we parse from |
| 65 | * oldest to newest, if we come across an IB that has already been used, |
| 66 | * assume that it has been reused and update the list with the newest |
| 67 | * size. |
| 68 | */ |
| 69 | |
| 70 | for (index = 0; index < objbufptr; index++) { |
| 71 | if (objbuf[index].gpuaddr == gpuaddr && |
| 72 | objbuf[index].entry->priv == process) { |
Rajesh Kemisetti | 779b5e0 | 2019-06-19 20:53:52 +0530 | [diff] [blame] | 73 | /* |
| 74 | * Check if newly requested size is within the |
| 75 | * allocated range or not, otherwise continue |
| 76 | * with previous size. |
| 77 | */ |
| 78 | if (!kgsl_gpuaddr_in_memdesc( |
| 79 | &objbuf[index].entry->memdesc, |
| 80 | gpuaddr, dwords << 2)) { |
| 81 | KGSL_CORE_ERR( |
| 82 | "snapshot: IB 0x%016llx size is not within the memdesc range\n", |
| 83 | gpuaddr); |
| 84 | return; |
| 85 | } |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 86 | |
| 87 | objbuf[index].size = max_t(uint64_t, |
| 88 | objbuf[index].size, |
| 89 | dwords << 2); |
| 90 | return; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | if (objbufptr == SNAPSHOT_OBJ_BUFSIZE) { |
| 95 | KGSL_CORE_ERR("snapshot: too many snapshot objects\n"); |
| 96 | return; |
| 97 | } |
| 98 | |
| 99 | entry = kgsl_sharedmem_find(process, gpuaddr); |
| 100 | if (entry == NULL) { |
| 101 | KGSL_CORE_ERR("snapshot: Can't find entry for 0x%016llX\n", |
| 102 | gpuaddr); |
| 103 | return; |
| 104 | } |
| 105 | |
| 106 | if (!kgsl_gpuaddr_in_memdesc(&entry->memdesc, gpuaddr, dwords << 2)) { |
| 107 | KGSL_CORE_ERR("snapshot: Mem entry 0x%016llX is too small\n", |
| 108 | gpuaddr); |
| 109 | kgsl_mem_entry_put(entry); |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | /* Put it on the list of things to parse */ |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 114 | objbuf[objbufptr].gpuaddr = gpuaddr; |
| 115 | objbuf[objbufptr].size = dwords << 2; |
| 116 | objbuf[objbufptr++].entry = entry; |
| 117 | } |
| 118 | |
| 119 | /* |
| 120 | * Returns index of the specified object is already on the list of buffers |
| 121 | * to be dumped |
| 122 | */ |
| 123 | |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 124 | static int find_object(uint64_t gpuaddr, struct kgsl_process_private *process) |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 125 | { |
| 126 | int index; |
| 127 | |
| 128 | for (index = 0; index < objbufptr; index++) { |
| 129 | if (objbuf[index].gpuaddr == gpuaddr && |
| 130 | objbuf[index].entry->priv == process) |
| 131 | return index; |
| 132 | } |
| 133 | return -ENOENT; |
| 134 | } |
| 135 | |
| 136 | /* |
| 137 | * snapshot_freeze_obj_list() - Take a list of ib objects and freeze their |
| 138 | * memory for snapshot |
| 139 | * @snapshot: The snapshot data. |
| 140 | * @process: The process to which the IB belongs |
| 141 | * @ib_obj_list: List of the IB objects |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 142 | * |
| 143 | * Returns 0 on success else error code |
| 144 | */ |
| 145 | static int snapshot_freeze_obj_list(struct kgsl_snapshot *snapshot, |
| 146 | struct kgsl_process_private *process, |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 147 | struct adreno_ib_object_list *ib_obj_list) |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 148 | { |
| 149 | int ret = 0; |
| 150 | struct adreno_ib_object *ib_objs; |
| 151 | int i; |
| 152 | |
| 153 | for (i = 0; i < ib_obj_list->num_objs; i++) { |
| 154 | int temp_ret; |
| 155 | int index; |
| 156 | int freeze = 1; |
| 157 | |
| 158 | ib_objs = &(ib_obj_list->obj_list[i]); |
| 159 | /* Make sure this object is not going to be saved statically */ |
| 160 | for (index = 0; index < objbufptr; index++) { |
| 161 | if ((objbuf[index].gpuaddr <= ib_objs->gpuaddr) && |
| 162 | ((objbuf[index].gpuaddr + |
| 163 | (objbuf[index].size)) >= |
| 164 | (ib_objs->gpuaddr + ib_objs->size)) && |
| 165 | (objbuf[index].entry->priv == process)) { |
| 166 | freeze = 0; |
| 167 | break; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | if (freeze) { |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 172 | temp_ret = kgsl_snapshot_get_object(snapshot, |
| 173 | process, ib_objs->gpuaddr, |
| 174 | ib_objs->size, |
| 175 | ib_objs->snapshot_obj_type); |
| 176 | if (temp_ret < 0) { |
| 177 | if (ret >= 0) |
| 178 | ret = temp_ret; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 179 | } else { |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 180 | snapshot_frozen_objsize += temp_ret; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 181 | } |
| 182 | } |
| 183 | } |
| 184 | return ret; |
| 185 | } |
| 186 | |
| 187 | /* |
| 188 | * We want to store the last executed IB1 and IB2 in the static region to ensure |
| 189 | * that we get at least some information out of the snapshot even if we can't |
| 190 | * access the dynamic data from the sysfs file. Push all other IBs on the |
| 191 | * dynamic list |
| 192 | */ |
| 193 | static inline void parse_ib(struct kgsl_device *device, |
| 194 | struct kgsl_snapshot *snapshot, |
| 195 | struct kgsl_process_private *process, |
| 196 | uint64_t gpuaddr, uint64_t dwords) |
| 197 | { |
| 198 | struct adreno_ib_object_list *ib_obj_list; |
| 199 | |
| 200 | /* |
| 201 | * Check the IB address - if it is either the last executed IB1 |
| 202 | * then push it into the static blob otherwise put it in the dynamic |
| 203 | * list |
| 204 | */ |
| 205 | if (gpuaddr == snapshot->ib1base) { |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 206 | kgsl_snapshot_push_object(process, gpuaddr, dwords); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 207 | return; |
| 208 | } |
| 209 | |
| 210 | if (kgsl_snapshot_have_object(snapshot, process, |
| 211 | gpuaddr, dwords << 2)) |
| 212 | return; |
| 213 | |
| 214 | if (-E2BIG == adreno_ib_create_object_list(device, process, |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 215 | gpuaddr, dwords, snapshot->ib2base, |
| 216 | &ib_obj_list)) |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 217 | ib_max_objs = 1; |
| 218 | |
| 219 | if (ib_obj_list) |
| 220 | kgsl_snapshot_add_ib_obj_list(snapshot, ib_obj_list); |
| 221 | |
| 222 | } |
| 223 | |
| 224 | static inline bool iommu_is_setstate_addr(struct kgsl_device *device, |
| 225 | uint64_t gpuaddr, uint64_t size) |
| 226 | { |
| 227 | struct kgsl_iommu *iommu = KGSL_IOMMU_PRIV(device); |
| 228 | |
| 229 | if (kgsl_mmu_get_mmutype(device) != KGSL_MMU_TYPE_IOMMU) |
| 230 | return false; |
| 231 | |
| 232 | return kgsl_gpuaddr_in_memdesc(&iommu->setstate, gpuaddr, |
| 233 | size); |
| 234 | } |
| 235 | |
| 236 | static void dump_all_ibs(struct kgsl_device *device, |
| 237 | struct adreno_ringbuffer *rb, |
| 238 | struct kgsl_snapshot *snapshot) |
| 239 | { |
| 240 | int index = 0; |
| 241 | unsigned int *rbptr; |
| 242 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 243 | |
| 244 | rbptr = rb->buffer_desc.hostptr; |
| 245 | |
| 246 | for (index = 0; index < KGSL_RB_DWORDS;) { |
| 247 | |
| 248 | if (adreno_cmd_is_ib(adreno_dev, rbptr[index])) { |
| 249 | uint64_t ibaddr; |
| 250 | uint64_t ibsize; |
| 251 | |
| 252 | if (ADRENO_LEGACY_PM4(adreno_dev)) { |
| 253 | ibaddr = rbptr[index + 1]; |
| 254 | ibsize = rbptr[index + 2]; |
| 255 | index += 3; |
| 256 | } else { |
| 257 | ibaddr = rbptr[index + 2]; |
| 258 | ibaddr = ibaddr << 32 | rbptr[index + 1]; |
| 259 | ibsize = rbptr[index + 3]; |
| 260 | index += 4; |
| 261 | } |
| 262 | |
| 263 | /* Don't parse known global IBs */ |
| 264 | if (iommu_is_setstate_addr(device, ibaddr, ibsize)) |
| 265 | continue; |
| 266 | |
| 267 | if (kgsl_gpuaddr_in_memdesc(&adreno_dev->pwron_fixup, |
| 268 | ibaddr, ibsize)) |
| 269 | continue; |
| 270 | |
| 271 | parse_ib(device, snapshot, snapshot->process, ibaddr, |
| 272 | ibsize); |
| 273 | } else |
| 274 | index = index + 1; |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * snapshot_rb_ibs() - Dump rb data and capture the IB's in the RB as well |
| 280 | * @device: Pointer to a KGSL device |
| 281 | * @rb: The RB to dump |
| 282 | * @data: Pointer to memory where the RB data is to be dumped |
| 283 | * @snapshot: Pointer to information about the current snapshot being taken |
| 284 | */ |
| 285 | static void snapshot_rb_ibs(struct kgsl_device *device, |
| 286 | struct adreno_ringbuffer *rb, |
| 287 | struct kgsl_snapshot *snapshot) |
| 288 | { |
| 289 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 290 | unsigned int rptr, *rbptr; |
| 291 | int index, i; |
| 292 | int parse_ibs = 0, ib_parse_start; |
| 293 | |
| 294 | /* Get the current read pointers for the RB */ |
| 295 | adreno_readreg(adreno_dev, ADRENO_REG_CP_RB_RPTR, &rptr); |
| 296 | |
| 297 | /* |
| 298 | * Figure out the window of ringbuffer data to dump. First we need to |
| 299 | * find where the last processed IB ws submitted. Start walking back |
| 300 | * from the rptr |
| 301 | */ |
| 302 | |
| 303 | index = rptr; |
| 304 | rbptr = rb->buffer_desc.hostptr; |
| 305 | |
| 306 | do { |
| 307 | index--; |
| 308 | |
| 309 | if (index < 0) { |
| 310 | if (ADRENO_LEGACY_PM4(adreno_dev)) |
| 311 | index = KGSL_RB_DWORDS - 3; |
| 312 | else |
| 313 | index = KGSL_RB_DWORDS - 4; |
| 314 | |
| 315 | /* We wrapped without finding what we wanted */ |
| 316 | if (index < rb->wptr) { |
| 317 | index = rb->wptr; |
| 318 | break; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | if (adreno_cmd_is_ib(adreno_dev, rbptr[index])) { |
| 323 | if (ADRENO_LEGACY_PM4(adreno_dev)) { |
| 324 | if (rbptr[index + 1] == snapshot->ib1base) |
| 325 | break; |
| 326 | } else { |
| 327 | uint64_t ibaddr; |
| 328 | |
| 329 | ibaddr = rbptr[index + 2]; |
| 330 | ibaddr = ibaddr << 32 | rbptr[index + 1]; |
| 331 | if (ibaddr == snapshot->ib1base) |
| 332 | break; |
| 333 | } |
| 334 | } |
| 335 | } while (index != rb->wptr); |
| 336 | |
| 337 | /* |
| 338 | * If the ib1 was not found, for example, if ib1base was restored |
| 339 | * incorrectly after preemption, then simply dump the entire |
| 340 | * ringbuffer along with all the IBs in the ringbuffer. |
| 341 | */ |
| 342 | |
| 343 | if (index == rb->wptr) { |
| 344 | dump_all_ibs(device, rb, snapshot); |
| 345 | return; |
| 346 | } |
| 347 | |
| 348 | /* |
| 349 | * index points at the last submitted IB. We can only trust that the |
| 350 | * memory between the context switch and the hanging IB is valid, so |
| 351 | * the next step is to find the context switch before the submission |
| 352 | */ |
| 353 | |
| 354 | while (index != rb->wptr) { |
| 355 | index--; |
| 356 | |
| 357 | if (index < 0) { |
| 358 | index = KGSL_RB_DWORDS - 2; |
| 359 | |
| 360 | /* |
| 361 | * Wrapped without finding the context switch. This is |
| 362 | * harmless - we should still have enough data to dump a |
| 363 | * valid state |
| 364 | */ |
| 365 | |
| 366 | if (index < rb->wptr) { |
| 367 | index = rb->wptr; |
| 368 | break; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | /* Break if the current packet is a context switch identifier */ |
| 373 | if ((rbptr[index] == cp_packet(adreno_dev, CP_NOP, 1)) && |
| 374 | (rbptr[index + 1] == KGSL_CONTEXT_TO_MEM_IDENTIFIER)) |
| 375 | break; |
| 376 | } |
| 377 | |
| 378 | /* |
| 379 | * Index represents the start of the window of interest. We will try |
| 380 | * to dump all buffers between here and the rptr |
| 381 | */ |
| 382 | |
| 383 | ib_parse_start = index; |
| 384 | |
| 385 | /* |
| 386 | * Loop through the RB, looking for indirect buffers and MMU pagetable |
| 387 | * changes |
| 388 | */ |
| 389 | |
| 390 | index = rb->wptr; |
| 391 | for (i = 0; i < KGSL_RB_DWORDS; i++) { |
| 392 | /* |
| 393 | * Only parse IBs between the start and the rptr or the next |
| 394 | * context switch, whichever comes first |
| 395 | */ |
| 396 | |
| 397 | if (parse_ibs == 0 && index == ib_parse_start) |
| 398 | parse_ibs = 1; |
| 399 | else if (index == rptr || adreno_rb_ctxtswitch(adreno_dev, |
| 400 | &rbptr[index])) |
| 401 | parse_ibs = 0; |
| 402 | |
| 403 | if (parse_ibs && adreno_cmd_is_ib(adreno_dev, rbptr[index])) { |
| 404 | uint64_t ibaddr; |
| 405 | uint64_t ibsize; |
| 406 | |
| 407 | if (ADRENO_LEGACY_PM4(adreno_dev)) { |
| 408 | ibaddr = rbptr[index + 1]; |
| 409 | ibsize = rbptr[index + 2]; |
| 410 | } else { |
| 411 | ibaddr = rbptr[index + 2]; |
| 412 | ibaddr = ibaddr << 32 | rbptr[index + 1]; |
| 413 | ibsize = rbptr[index + 3]; |
| 414 | } |
| 415 | |
Sunil Khatri | e54678d | 2018-07-30 15:18:17 +0530 | [diff] [blame] | 416 | index = (index + 1) % KGSL_RB_DWORDS; |
| 417 | |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 418 | /* Don't parse known global IBs */ |
| 419 | if (iommu_is_setstate_addr(device, ibaddr, ibsize)) |
| 420 | continue; |
| 421 | |
| 422 | if (kgsl_gpuaddr_in_memdesc(&adreno_dev->pwron_fixup, |
| 423 | ibaddr, ibsize)) |
| 424 | continue; |
| 425 | |
| 426 | parse_ib(device, snapshot, snapshot->process, |
| 427 | ibaddr, ibsize); |
Sunil Khatri | e54678d | 2018-07-30 15:18:17 +0530 | [diff] [blame] | 428 | } else |
| 429 | index = (index + 1) % KGSL_RB_DWORDS; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | } |
| 433 | |
| 434 | /* Snapshot the ringbuffer memory */ |
| 435 | static size_t snapshot_rb(struct kgsl_device *device, u8 *buf, |
| 436 | size_t remain, void *priv) |
| 437 | { |
| 438 | struct kgsl_snapshot_rb_v2 *header = (struct kgsl_snapshot_rb_v2 *)buf; |
| 439 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 440 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 441 | struct snapshot_rb_params *snap_rb_params = priv; |
| 442 | struct kgsl_snapshot *snapshot = snap_rb_params->snapshot; |
| 443 | struct adreno_ringbuffer *rb = snap_rb_params->rb; |
| 444 | |
| 445 | /* |
| 446 | * Dump the entire ringbuffer - the parser can choose how much of it to |
| 447 | * process |
| 448 | */ |
| 449 | |
| 450 | if (remain < KGSL_RB_SIZE + sizeof(*header)) { |
| 451 | KGSL_CORE_ERR("snapshot: Not enough memory for the rb section"); |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | /* Write the sub-header for the section */ |
| 456 | header->start = 0; |
| 457 | header->end = KGSL_RB_DWORDS; |
| 458 | header->wptr = rb->wptr; |
| 459 | header->rptr = adreno_get_rptr(rb); |
| 460 | header->rbsize = KGSL_RB_DWORDS; |
| 461 | header->count = KGSL_RB_DWORDS; |
| 462 | adreno_rb_readtimestamp(adreno_dev, rb, KGSL_TIMESTAMP_QUEUED, |
| 463 | &header->timestamp_queued); |
| 464 | adreno_rb_readtimestamp(adreno_dev, rb, KGSL_TIMESTAMP_RETIRED, |
| 465 | &header->timestamp_retired); |
| 466 | header->gpuaddr = rb->buffer_desc.gpuaddr; |
| 467 | header->id = rb->id; |
| 468 | |
| 469 | if (rb == adreno_dev->cur_rb) |
| 470 | snapshot_rb_ibs(device, rb, snapshot); |
| 471 | |
| 472 | /* Just copy the ringbuffer, there are no active IBs */ |
| 473 | memcpy(data, rb->buffer_desc.hostptr, KGSL_RB_SIZE); |
| 474 | |
| 475 | /* Return the size of the section */ |
| 476 | return KGSL_RB_SIZE + sizeof(*header); |
| 477 | } |
| 478 | |
| 479 | static int _count_mem_entries(int id, void *ptr, void *data) |
| 480 | { |
| 481 | int *count = data; |
| 482 | *count = *count + 1; |
| 483 | return 0; |
| 484 | } |
| 485 | |
| 486 | struct mem_entry { |
| 487 | uint64_t gpuaddr; |
| 488 | uint64_t size; |
| 489 | unsigned int type; |
| 490 | } __packed; |
| 491 | |
| 492 | static int _save_mem_entries(int id, void *ptr, void *data) |
| 493 | { |
| 494 | struct kgsl_mem_entry *entry = ptr; |
| 495 | struct mem_entry *m = (struct mem_entry *) data; |
| 496 | unsigned int index = id - 1; |
| 497 | |
| 498 | m[index].gpuaddr = entry->memdesc.gpuaddr; |
| 499 | m[index].size = entry->memdesc.size; |
| 500 | m[index].type = kgsl_memdesc_get_memtype(&entry->memdesc); |
| 501 | |
| 502 | return 0; |
| 503 | } |
| 504 | |
| 505 | static size_t snapshot_capture_mem_list(struct kgsl_device *device, |
| 506 | u8 *buf, size_t remain, void *priv) |
| 507 | { |
| 508 | struct kgsl_snapshot_mem_list_v2 *header = |
| 509 | (struct kgsl_snapshot_mem_list_v2 *)buf; |
| 510 | int num_mem = 0; |
| 511 | int ret = 0; |
| 512 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 513 | struct kgsl_process_private *process = priv; |
| 514 | |
| 515 | /* we need a process to search! */ |
| 516 | if (process == NULL) |
| 517 | return 0; |
| 518 | |
| 519 | spin_lock(&process->mem_lock); |
| 520 | |
| 521 | /* We need to know the number of memory objects that the process has */ |
| 522 | idr_for_each(&process->mem_idr, _count_mem_entries, &num_mem); |
| 523 | |
| 524 | if (num_mem == 0) |
| 525 | goto out; |
| 526 | |
| 527 | if (remain < ((num_mem * sizeof(struct mem_entry)) + sizeof(*header))) { |
| 528 | KGSL_CORE_ERR("snapshot: Not enough memory for the mem list"); |
| 529 | goto out; |
| 530 | } |
| 531 | |
| 532 | header->num_entries = num_mem; |
| 533 | header->ptbase = kgsl_mmu_pagetable_get_ttbr0(process->pagetable); |
| 534 | |
| 535 | /* |
| 536 | * Walk through the memory list and store the |
| 537 | * tuples(gpuaddr, size, memtype) in snapshot |
| 538 | */ |
| 539 | idr_for_each(&process->mem_idr, _save_mem_entries, data); |
| 540 | |
| 541 | ret = sizeof(*header) + (num_mem * sizeof(struct mem_entry)); |
| 542 | out: |
| 543 | spin_unlock(&process->mem_lock); |
| 544 | return ret; |
| 545 | } |
| 546 | |
| 547 | struct snapshot_ib_meta { |
| 548 | struct kgsl_snapshot *snapshot; |
| 549 | struct kgsl_snapshot_object *obj; |
| 550 | uint64_t ib1base; |
| 551 | uint64_t ib1size; |
| 552 | uint64_t ib2base; |
| 553 | uint64_t ib2size; |
| 554 | }; |
| 555 | |
| 556 | void kgsl_snapshot_add_active_ib_obj_list(struct kgsl_device *device, |
| 557 | struct kgsl_snapshot *snapshot) |
| 558 | { |
| 559 | struct adreno_ib_object_list *ib_obj_list; |
| 560 | int index = -ENOENT; |
| 561 | |
| 562 | if (!snapshot->ib1dumped) |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 563 | index = find_object(snapshot->ib1base, snapshot->process); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 564 | |
| 565 | /* only do this for IB1 because the IB2's are part of IB1 objects */ |
| 566 | if ((index != -ENOENT) && |
| 567 | (snapshot->ib1base == objbuf[index].gpuaddr)) { |
| 568 | if (-E2BIG == adreno_ib_create_object_list(device, |
| 569 | objbuf[index].entry->priv, |
| 570 | objbuf[index].gpuaddr, |
| 571 | objbuf[index].size >> 2, |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 572 | snapshot->ib2base, |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 573 | &ib_obj_list)) |
| 574 | ib_max_objs = 1; |
| 575 | if (ib_obj_list) { |
| 576 | /* freeze the IB objects in the IB */ |
| 577 | snapshot_freeze_obj_list(snapshot, |
| 578 | objbuf[index].entry->priv, |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 579 | ib_obj_list); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 580 | adreno_ib_destroy_obj_list(ib_obj_list); |
| 581 | } |
| 582 | } else { |
| 583 | /* Get the IB2 index from parsed object */ |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 584 | index = find_object(snapshot->ib2base, snapshot->process); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 585 | |
| 586 | if (index != -ENOENT) |
| 587 | parse_ib(device, snapshot, snapshot->process, |
| 588 | snapshot->ib2base, objbuf[index].size >> 2); |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | /* |
| 593 | * active_ib_is_parsed() - Checks if active ib is already parsed |
| 594 | * @gpuaddr: Active IB base address at the time of fault |
| 595 | * @size: Active IB size |
| 596 | * @process: The process to which the IB belongs |
| 597 | * |
| 598 | * Function returns true if the active is already is parsed |
| 599 | * else false |
| 600 | */ |
| 601 | static bool active_ib_is_parsed(uint64_t gpuaddr, uint64_t size, |
| 602 | struct kgsl_process_private *process) |
| 603 | { |
| 604 | int index; |
| 605 | /* go through the static list for gpuaddr is in list or not */ |
| 606 | for (index = 0; index < objbufptr; index++) { |
| 607 | if ((objbuf[index].gpuaddr <= gpuaddr) && |
| 608 | ((objbuf[index].gpuaddr + |
| 609 | (objbuf[index].size)) >= |
| 610 | (gpuaddr + size)) && |
| 611 | (objbuf[index].entry->priv == process)) |
| 612 | return true; |
| 613 | } |
| 614 | return false; |
| 615 | } |
| 616 | /* Snapshot the memory for an indirect buffer */ |
| 617 | static size_t snapshot_ib(struct kgsl_device *device, u8 *buf, |
| 618 | size_t remain, void *priv) |
| 619 | { |
| 620 | struct kgsl_snapshot_ib_v2 *header = (struct kgsl_snapshot_ib_v2 *)buf; |
| 621 | struct snapshot_ib_meta *meta = priv; |
| 622 | unsigned int *src; |
| 623 | unsigned int *dst = (unsigned int *)(buf + sizeof(*header)); |
| 624 | struct adreno_ib_object_list *ib_obj_list; |
| 625 | struct kgsl_snapshot *snapshot; |
| 626 | struct kgsl_snapshot_object *obj; |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 627 | struct kgsl_memdesc *memdesc; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 628 | |
| 629 | if (meta == NULL || meta->snapshot == NULL || meta->obj == NULL) { |
| 630 | KGSL_CORE_ERR("snapshot: bad metadata"); |
| 631 | return 0; |
| 632 | } |
| 633 | snapshot = meta->snapshot; |
| 634 | obj = meta->obj; |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 635 | memdesc = &obj->entry->memdesc; |
| 636 | |
| 637 | /* If size is zero get it from the medesc size */ |
| 638 | if (!obj->size) |
| 639 | obj->size = (memdesc->size - (obj->gpuaddr - memdesc->gpuaddr)); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 640 | |
| 641 | if (remain < (obj->size + sizeof(*header))) { |
| 642 | KGSL_CORE_ERR("snapshot: Not enough memory for the ib\n"); |
| 643 | return 0; |
| 644 | } |
| 645 | |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 646 | src = kgsl_gpuaddr_to_vaddr(memdesc, obj->gpuaddr); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 647 | if (src == NULL) { |
| 648 | KGSL_DRV_ERR(device, |
| 649 | "snapshot: Unable to map GPU memory object 0x%016llX into the kernel\n", |
| 650 | obj->gpuaddr); |
| 651 | return 0; |
| 652 | } |
| 653 | |
| 654 | /* only do this for IB1 because the IB2's are part of IB1 objects */ |
| 655 | if (meta->ib1base == obj->gpuaddr) { |
| 656 | |
| 657 | snapshot->ib1dumped = active_ib_is_parsed(obj->gpuaddr, |
| 658 | obj->size, obj->entry->priv); |
| 659 | if (-E2BIG == adreno_ib_create_object_list(device, |
| 660 | obj->entry->priv, |
| 661 | obj->gpuaddr, obj->size >> 2, |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 662 | snapshot->ib2base, |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 663 | &ib_obj_list)) |
| 664 | ib_max_objs = 1; |
| 665 | if (ib_obj_list) { |
| 666 | /* freeze the IB objects in the IB */ |
| 667 | snapshot_freeze_obj_list(snapshot, |
| 668 | obj->entry->priv, |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 669 | ib_obj_list); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 670 | adreno_ib_destroy_obj_list(ib_obj_list); |
| 671 | } |
| 672 | } |
| 673 | |
| 674 | |
| 675 | if (meta->ib2base == obj->gpuaddr) |
| 676 | snapshot->ib2dumped = active_ib_is_parsed(obj->gpuaddr, |
| 677 | obj->size, obj->entry->priv); |
| 678 | |
| 679 | /* Write the sub-header for the section */ |
| 680 | header->gpuaddr = obj->gpuaddr; |
| 681 | header->ptbase = |
| 682 | kgsl_mmu_pagetable_get_ttbr0(obj->entry->priv->pagetable); |
| 683 | header->size = obj->size >> 2; |
| 684 | |
| 685 | /* Write the contents of the ib */ |
| 686 | memcpy((void *)dst, (void *)src, (size_t) obj->size); |
| 687 | /* Write the contents of the ib */ |
| 688 | |
| 689 | return obj->size + sizeof(*header); |
| 690 | } |
| 691 | |
| 692 | /* Dump another item on the current pending list */ |
| 693 | static void dump_object(struct kgsl_device *device, int obj, |
| 694 | struct kgsl_snapshot *snapshot) |
| 695 | { |
| 696 | struct snapshot_ib_meta meta; |
| 697 | |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 698 | meta.snapshot = snapshot; |
| 699 | meta.obj = &objbuf[obj]; |
| 700 | meta.ib1base = snapshot->ib1base; |
| 701 | meta.ib1size = snapshot->ib1size; |
| 702 | meta.ib2base = snapshot->ib2base; |
| 703 | meta.ib2size = snapshot->ib2size; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 704 | |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 705 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_IB_V2, |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 706 | snapshot, snapshot_ib, &meta); |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 707 | if (objbuf[obj].entry) { |
| 708 | kgsl_memdesc_unmap(&(objbuf[obj].entry->memdesc)); |
| 709 | kgsl_mem_entry_put(objbuf[obj].entry); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 710 | } |
| 711 | } |
| 712 | |
| 713 | /* setup_fault process - Find kgsl_process_private struct that caused the fault |
| 714 | * |
| 715 | * Find the faulting process based what the dispatcher thinks happened and |
| 716 | * what the hardware is using for the current pagetable. The process struct |
| 717 | * will be used to look up GPU addresses that are encountered while parsing |
| 718 | * the GPU state. |
| 719 | */ |
| 720 | static void setup_fault_process(struct kgsl_device *device, |
| 721 | struct kgsl_snapshot *snapshot, |
| 722 | struct kgsl_process_private *process) |
| 723 | { |
| 724 | u64 hw_ptbase, proc_ptbase; |
| 725 | |
| 726 | if (process != NULL && !kgsl_process_private_get(process)) |
| 727 | process = NULL; |
| 728 | |
| 729 | /* Get the physical address of the MMU pagetable */ |
| 730 | hw_ptbase = kgsl_mmu_get_current_ttbr0(&device->mmu); |
| 731 | |
| 732 | /* if we have an input process, make sure the ptbases match */ |
| 733 | if (process) { |
| 734 | proc_ptbase = kgsl_mmu_pagetable_get_ttbr0(process->pagetable); |
| 735 | /* agreement! No need to check further */ |
| 736 | if (hw_ptbase == proc_ptbase) |
| 737 | goto done; |
| 738 | |
| 739 | kgsl_process_private_put(process); |
| 740 | process = NULL; |
| 741 | KGSL_CORE_ERR("snapshot: ptbase mismatch hw %llx sw %llx\n", |
| 742 | hw_ptbase, proc_ptbase); |
| 743 | } |
| 744 | |
| 745 | /* try to find the right pagetable by walking the process list */ |
| 746 | if (kgsl_mmu_is_perprocess(&device->mmu)) { |
| 747 | struct kgsl_process_private *tmp; |
| 748 | |
| 749 | mutex_lock(&kgsl_driver.process_mutex); |
| 750 | list_for_each_entry(tmp, &kgsl_driver.process_list, list) { |
| 751 | u64 pt_ttbr0; |
| 752 | |
| 753 | pt_ttbr0 = kgsl_mmu_pagetable_get_ttbr0(tmp->pagetable); |
| 754 | if ((pt_ttbr0 == hw_ptbase) |
| 755 | && kgsl_process_private_get(tmp)) { |
| 756 | process = tmp; |
| 757 | break; |
| 758 | } |
| 759 | } |
| 760 | mutex_unlock(&kgsl_driver.process_mutex); |
| 761 | } |
| 762 | done: |
| 763 | snapshot->process = process; |
| 764 | } |
| 765 | |
| 766 | /* Snapshot a global memory buffer */ |
| 767 | static size_t snapshot_global(struct kgsl_device *device, u8 *buf, |
| 768 | size_t remain, void *priv) |
| 769 | { |
| 770 | struct kgsl_memdesc *memdesc = priv; |
| 771 | |
| 772 | struct kgsl_snapshot_gpu_object_v2 *header = |
| 773 | (struct kgsl_snapshot_gpu_object_v2 *)buf; |
| 774 | |
| 775 | u8 *ptr = buf + sizeof(*header); |
| 776 | |
| 777 | if (memdesc->size == 0) |
| 778 | return 0; |
| 779 | |
| 780 | if (remain < (memdesc->size + sizeof(*header))) { |
| 781 | KGSL_CORE_ERR("snapshot: Not enough memory for the memdesc\n"); |
| 782 | return 0; |
| 783 | } |
| 784 | |
| 785 | if (memdesc->hostptr == NULL) { |
| 786 | KGSL_CORE_ERR( |
| 787 | "snapshot: no kernel mapping for global object 0x%016llX\n", |
| 788 | memdesc->gpuaddr); |
| 789 | return 0; |
| 790 | } |
| 791 | |
| 792 | header->size = memdesc->size >> 2; |
| 793 | header->gpuaddr = memdesc->gpuaddr; |
| 794 | header->ptbase = MMU_DEFAULT_TTBR0(device); |
| 795 | header->type = SNAPSHOT_GPU_OBJECT_GLOBAL; |
| 796 | |
| 797 | memcpy(ptr, memdesc->hostptr, memdesc->size); |
| 798 | |
| 799 | return memdesc->size + sizeof(*header); |
| 800 | } |
| 801 | |
| 802 | /* Snapshot IOMMU specific buffers */ |
| 803 | static void adreno_snapshot_iommu(struct kgsl_device *device, |
| 804 | struct kgsl_snapshot *snapshot) |
| 805 | { |
| 806 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 807 | struct kgsl_iommu *iommu = KGSL_IOMMU_PRIV(device); |
| 808 | |
| 809 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2, |
| 810 | snapshot, snapshot_global, &iommu->setstate); |
| 811 | |
| 812 | if (ADRENO_FEATURE(adreno_dev, ADRENO_PREEMPTION)) |
| 813 | kgsl_snapshot_add_section(device, |
| 814 | KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2, |
| 815 | snapshot, snapshot_global, &iommu->smmu_info); |
| 816 | } |
| 817 | |
| 818 | static void adreno_snapshot_ringbuffer(struct kgsl_device *device, |
| 819 | struct kgsl_snapshot *snapshot, struct adreno_ringbuffer *rb) |
| 820 | { |
| 821 | struct snapshot_rb_params params = { |
| 822 | .snapshot = snapshot, |
| 823 | .rb = rb, |
| 824 | }; |
| 825 | |
| 826 | if (rb == NULL) |
| 827 | return; |
| 828 | |
| 829 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_RB_V2, snapshot, |
| 830 | snapshot_rb, ¶ms); |
| 831 | } |
| 832 | |
| 833 | /* adreno_snapshot - Snapshot the Adreno GPU state |
| 834 | * @device - KGSL device to snapshot |
| 835 | * @snapshot - Pointer to the snapshot instance |
| 836 | * @context - context that caused the fault, if known by the driver |
| 837 | * This is a hook function called by kgsl_snapshot to snapshot the |
| 838 | * Adreno specific information for the GPU snapshot. In turn, this function |
| 839 | * calls the GPU specific snapshot function to get core specific information. |
| 840 | */ |
| 841 | void adreno_snapshot(struct kgsl_device *device, struct kgsl_snapshot *snapshot, |
| 842 | struct kgsl_context *context) |
| 843 | { |
| 844 | unsigned int i; |
| 845 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 846 | struct adreno_gpudev *gpudev = ADRENO_GPU_DEVICE(adreno_dev); |
| 847 | |
| 848 | ib_max_objs = 0; |
| 849 | /* Reset the list of objects */ |
| 850 | objbufptr = 0; |
| 851 | |
| 852 | snapshot_frozen_objsize = 0; |
| 853 | |
Carter Cooper | b88b708 | 2017-09-14 09:03:26 -0600 | [diff] [blame] | 854 | setup_fault_process(device, snapshot, |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 855 | context ? context->proc_priv : NULL); |
| 856 | |
Shrenuj Bansal | d197bf6 | 2017-04-07 11:00:09 -0700 | [diff] [blame] | 857 | /* Add GPU specific sections - registers mainly, but other stuff too */ |
| 858 | if (gpudev->snapshot) |
| 859 | gpudev->snapshot(adreno_dev, snapshot); |
| 860 | |
| 861 | /* Dumping these buffers is useless if the GX is not on */ |
| 862 | if (gpudev->gx_is_on) |
| 863 | if (!gpudev->gx_is_on(adreno_dev)) |
| 864 | return; |
| 865 | |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 866 | adreno_readreg64(adreno_dev, ADRENO_REG_CP_IB1_BASE, |
| 867 | ADRENO_REG_CP_IB1_BASE_HI, &snapshot->ib1base); |
| 868 | adreno_readreg(adreno_dev, ADRENO_REG_CP_IB1_BUFSZ, &snapshot->ib1size); |
| 869 | adreno_readreg64(adreno_dev, ADRENO_REG_CP_IB2_BASE, |
| 870 | ADRENO_REG_CP_IB2_BASE_HI, &snapshot->ib2base); |
| 871 | adreno_readreg(adreno_dev, ADRENO_REG_CP_IB2_BUFSZ, &snapshot->ib2size); |
| 872 | |
| 873 | snapshot->ib1dumped = false; |
| 874 | snapshot->ib2dumped = false; |
| 875 | |
| 876 | adreno_snapshot_ringbuffer(device, snapshot, adreno_dev->cur_rb); |
| 877 | |
| 878 | /* Dump the prev ringbuffer */ |
| 879 | if (adreno_dev->prev_rb != adreno_dev->cur_rb) |
| 880 | adreno_snapshot_ringbuffer(device, snapshot, |
| 881 | adreno_dev->prev_rb); |
| 882 | |
| 883 | if ((adreno_dev->next_rb != adreno_dev->prev_rb) && |
| 884 | (adreno_dev->next_rb != adreno_dev->cur_rb)) |
| 885 | adreno_snapshot_ringbuffer(device, snapshot, |
| 886 | adreno_dev->next_rb); |
| 887 | |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 888 | /* Dump selected global buffers */ |
| 889 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2, |
| 890 | snapshot, snapshot_global, &device->memstore); |
| 891 | |
| 892 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2, |
| 893 | snapshot, snapshot_global, |
| 894 | &adreno_dev->pwron_fixup); |
| 895 | |
| 896 | if (kgsl_mmu_get_mmutype(device) == KGSL_MMU_TYPE_IOMMU) |
| 897 | adreno_snapshot_iommu(device, snapshot); |
| 898 | |
| 899 | /* |
| 900 | * Add a section that lists (gpuaddr, size, memtype) tuples of the |
| 901 | * hanging process |
| 902 | */ |
| 903 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_MEMLIST_V2, |
| 904 | snapshot, snapshot_capture_mem_list, snapshot->process); |
| 905 | /* |
| 906 | * Make sure that the last IB1 that was being executed is dumped. |
| 907 | * Since this was the last IB1 that was processed, we should have |
| 908 | * already added it to the list during the ringbuffer parse but we |
| 909 | * want to be double plus sure. |
| 910 | * The problem is that IB size from the register is the unprocessed size |
| 911 | * of the buffer not the original size, so if we didn't catch this |
| 912 | * buffer being directly used in the RB, then we might not be able to |
Rajesh Kemisetti | 78f5bc9 | 2020-01-21 18:30:12 +0530 | [diff] [blame^] | 913 | * dump the whole thing. Try to dump the maximum possible size from the |
| 914 | * IB1 base address till the end of memdesc size so that we dont miss |
| 915 | * what we are interested in. Print a warning message so we can try to |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 916 | * figure how often this really happens. |
| 917 | */ |
| 918 | |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 919 | if (-ENOENT == find_object(snapshot->ib1base, snapshot->process) && |
| 920 | snapshot->ib1size) { |
Rajesh Kemisetti | 78f5bc9 | 2020-01-21 18:30:12 +0530 | [diff] [blame^] | 921 | struct kgsl_mem_entry *entry; |
| 922 | u64 ibsize; |
| 923 | |
| 924 | entry = kgsl_sharedmem_find(snapshot->process, |
| 925 | snapshot->ib1base); |
| 926 | if (entry == NULL) { |
| 927 | KGSL_CORE_ERR( |
| 928 | "Can't find a memory entry containing IB1BASE %16llx\n", |
| 929 | snapshot->ib1base); |
| 930 | } else { |
| 931 | ibsize = entry->memdesc.size - |
| 932 | (snapshot->ib1base - entry->memdesc.gpuaddr); |
| 933 | kgsl_mem_entry_put(entry); |
| 934 | |
| 935 | kgsl_snapshot_push_object(snapshot->process, |
| 936 | snapshot->ib1base, ibsize >> 2); |
| 937 | KGSL_CORE_ERR( |
| 938 | "CP_IB1_BASE is not found in the ringbuffer. Dumping %llx dwords of the buffer\n", |
| 939 | ibsize >> 2); |
| 940 | } |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 941 | } |
| 942 | |
| 943 | /* |
| 944 | * Add the last parsed IB2 to the list. The IB2 should be found as we |
| 945 | * parse the objects below, but we try to add it to the list first, so |
| 946 | * it too can be parsed. Don't print an error message in this case - if |
| 947 | * the IB2 is found during parsing, the list will be updated with the |
| 948 | * correct size. |
| 949 | */ |
| 950 | |
Hareesh Gundu | 9c6b1fa | 2017-01-06 15:37:09 +0530 | [diff] [blame] | 951 | if (-ENOENT == find_object(snapshot->ib2base, snapshot->process)) { |
| 952 | kgsl_snapshot_push_object(snapshot->process, snapshot->ib2base, |
| 953 | snapshot->ib2size); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 954 | } |
| 955 | |
| 956 | /* |
| 957 | * Go through the list of found objects and dump each one. As the IBs |
| 958 | * are parsed, more objects might be found, and objbufptr will increase |
| 959 | */ |
| 960 | for (i = 0; i < objbufptr; i++) |
| 961 | dump_object(device, i, snapshot); |
| 962 | |
| 963 | /* |
| 964 | * Incase snapshot static blob is running out of memory, Add Active IB1 |
| 965 | * and IB2 entries to obj_list so that active ib's can be dumped to |
| 966 | * snapshot dynamic blob. |
| 967 | */ |
| 968 | if (!snapshot->ib1dumped || !snapshot->ib2dumped) |
| 969 | kgsl_snapshot_add_active_ib_obj_list(device, snapshot); |
| 970 | |
| 971 | if (ib_max_objs) |
| 972 | KGSL_CORE_ERR("Max objects found in IB\n"); |
| 973 | if (snapshot_frozen_objsize) |
| 974 | KGSL_CORE_ERR("GPU snapshot froze %zdKb of GPU buffers\n", |
| 975 | snapshot_frozen_objsize / 1024); |
| 976 | |
| 977 | } |
| 978 | |
| 979 | /* |
| 980 | * adreno_snapshot_cp_roq - Dump CP merciu data in snapshot |
| 981 | * @device: Device being snapshotted |
| 982 | * @remain: Bytes remaining in snapshot memory |
| 983 | * @priv: Size of merciu data in Dwords |
| 984 | */ |
| 985 | size_t adreno_snapshot_cp_merciu(struct kgsl_device *device, u8 *buf, |
| 986 | size_t remain, void *priv) |
| 987 | { |
| 988 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 989 | struct kgsl_snapshot_debug *header = (struct kgsl_snapshot_debug *)buf; |
| 990 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 991 | int i, size = *((int *)priv); |
| 992 | |
| 993 | /* The MERCIU data is two dwords per entry */ |
| 994 | size = size << 1; |
| 995 | |
| 996 | if (remain < DEBUG_SECTION_SZ(size)) { |
| 997 | SNAPSHOT_ERR_NOMEM(device, "CP MERCIU DEBUG"); |
| 998 | return 0; |
| 999 | } |
| 1000 | |
| 1001 | header->type = SNAPSHOT_DEBUG_CP_MERCIU; |
| 1002 | header->size = size; |
| 1003 | |
| 1004 | adreno_writereg(adreno_dev, ADRENO_REG_CP_MERCIU_ADDR, 0x0); |
| 1005 | |
| 1006 | for (i = 0; i < size; i++) { |
| 1007 | adreno_readreg(adreno_dev, ADRENO_REG_CP_MERCIU_DATA, |
| 1008 | &data[(i * 2)]); |
| 1009 | adreno_readreg(adreno_dev, ADRENO_REG_CP_MERCIU_DATA2, |
| 1010 | &data[(i * 2) + 1]); |
| 1011 | } |
| 1012 | |
| 1013 | return DEBUG_SECTION_SZ(size); |
| 1014 | } |
| 1015 | |
| 1016 | /* |
| 1017 | * adreno_snapshot_cp_roq - Dump ROQ data in snapshot |
| 1018 | * @device: Device being snapshotted |
| 1019 | * @remain: Bytes remaining in snapshot memory |
| 1020 | * @priv: Size of ROQ data in Dwords |
| 1021 | */ |
| 1022 | size_t adreno_snapshot_cp_roq(struct kgsl_device *device, u8 *buf, |
| 1023 | size_t remain, void *priv) |
| 1024 | { |
| 1025 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 1026 | struct kgsl_snapshot_debug *header = (struct kgsl_snapshot_debug *)buf; |
| 1027 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 1028 | int i, size = *((int *)priv); |
| 1029 | |
| 1030 | if (remain < DEBUG_SECTION_SZ(size)) { |
| 1031 | SNAPSHOT_ERR_NOMEM(device, "CP ROQ DEBUG"); |
| 1032 | return 0; |
| 1033 | } |
| 1034 | |
| 1035 | header->type = SNAPSHOT_DEBUG_CP_ROQ; |
| 1036 | header->size = size; |
| 1037 | |
| 1038 | adreno_writereg(adreno_dev, ADRENO_REG_CP_ROQ_ADDR, 0x0); |
| 1039 | for (i = 0; i < size; i++) |
| 1040 | adreno_readreg(adreno_dev, ADRENO_REG_CP_ROQ_DATA, &data[i]); |
| 1041 | |
| 1042 | return DEBUG_SECTION_SZ(size); |
| 1043 | } |
| 1044 | |
| 1045 | /* |
| 1046 | * adreno_snapshot_cp_pm4_ram() - Dump PM4 data in snapshot |
| 1047 | * @device: Device being snapshotted |
| 1048 | * @buf: Snapshot memory |
| 1049 | * @remain: Number of bytes left in snapshot memory |
| 1050 | * @priv: Unused |
| 1051 | */ |
| 1052 | size_t adreno_snapshot_cp_pm4_ram(struct kgsl_device *device, u8 *buf, |
| 1053 | size_t remain, void *priv) |
| 1054 | { |
| 1055 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 1056 | struct kgsl_snapshot_debug *header = (struct kgsl_snapshot_debug *)buf; |
| 1057 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 1058 | int i; |
Shrenuj Bansal | acf1ef4 | 2016-06-01 11:11:27 -0700 | [diff] [blame] | 1059 | struct adreno_firmware *fw = ADRENO_FW(adreno_dev, ADRENO_FW_PM4); |
| 1060 | size_t size = fw->size - 1; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 1061 | |
| 1062 | if (remain < DEBUG_SECTION_SZ(size)) { |
| 1063 | SNAPSHOT_ERR_NOMEM(device, "CP PM4 RAM DEBUG"); |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
| 1067 | header->type = SNAPSHOT_DEBUG_CP_PM4_RAM; |
| 1068 | header->size = size; |
| 1069 | |
| 1070 | /* |
| 1071 | * Read the firmware from the GPU rather than use our cache in order to |
| 1072 | * try to catch mis-programming or corruption in the hardware. We do |
| 1073 | * use the cached version of the size, however, instead of trying to |
| 1074 | * maintain always changing hardcoded constants |
| 1075 | */ |
| 1076 | |
| 1077 | adreno_writereg(adreno_dev, ADRENO_REG_CP_ME_RAM_RADDR, 0x0); |
| 1078 | for (i = 0; i < size; i++) |
| 1079 | adreno_readreg(adreno_dev, ADRENO_REG_CP_ME_RAM_DATA, &data[i]); |
| 1080 | |
| 1081 | return DEBUG_SECTION_SZ(size); |
| 1082 | } |
| 1083 | |
| 1084 | /* |
| 1085 | * adreno_snapshot_cp_pfp_ram() - Dump the PFP data on snapshot |
| 1086 | * @device: Device being snapshotted |
| 1087 | * @buf: Snapshot memory |
| 1088 | * @remain: Amount of butes left in snapshot memory |
| 1089 | * @priv: Unused |
| 1090 | */ |
| 1091 | size_t adreno_snapshot_cp_pfp_ram(struct kgsl_device *device, u8 *buf, |
| 1092 | size_t remain, void *priv) |
| 1093 | { |
| 1094 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 1095 | struct kgsl_snapshot_debug *header = (struct kgsl_snapshot_debug *)buf; |
| 1096 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
Shrenuj Bansal | acf1ef4 | 2016-06-01 11:11:27 -0700 | [diff] [blame] | 1097 | int i; |
| 1098 | struct adreno_firmware *fw = ADRENO_FW(adreno_dev, ADRENO_FW_PFP); |
| 1099 | int size = fw->size - 1; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 1100 | |
| 1101 | if (remain < DEBUG_SECTION_SZ(size)) { |
| 1102 | SNAPSHOT_ERR_NOMEM(device, "CP PFP RAM DEBUG"); |
| 1103 | return 0; |
| 1104 | } |
| 1105 | |
| 1106 | header->type = SNAPSHOT_DEBUG_CP_PFP_RAM; |
| 1107 | header->size = size; |
| 1108 | |
| 1109 | /* |
| 1110 | * Read the firmware from the GPU rather than use our cache in order to |
| 1111 | * try to catch mis-programming or corruption in the hardware. We do |
| 1112 | * use the cached version of the size, however, instead of trying to |
| 1113 | * maintain always changing hardcoded constants |
| 1114 | */ |
| 1115 | adreno_writereg(adreno_dev, ADRENO_REG_CP_PFP_UCODE_ADDR, 0x0); |
| 1116 | for (i = 0; i < size; i++) |
| 1117 | adreno_readreg(adreno_dev, ADRENO_REG_CP_PFP_UCODE_DATA, |
| 1118 | &data[i]); |
| 1119 | |
| 1120 | return DEBUG_SECTION_SZ(size); |
| 1121 | } |
| 1122 | |
| 1123 | /* |
| 1124 | * adreno_snapshot_vpc_memory() - Save VPC data in snapshot |
| 1125 | * @device: Device being snapshotted |
| 1126 | * @buf: Snapshot memory |
| 1127 | * @remain: Number of bytes left in snapshot memory |
| 1128 | * @priv: Private data for VPC if any |
| 1129 | */ |
| 1130 | size_t adreno_snapshot_vpc_memory(struct kgsl_device *device, u8 *buf, |
| 1131 | size_t remain, void *priv) |
| 1132 | { |
| 1133 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 1134 | struct kgsl_snapshot_debug *header = (struct kgsl_snapshot_debug *)buf; |
| 1135 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 1136 | int vpc_mem_size = *((int *)priv); |
| 1137 | size_t size = VPC_MEMORY_BANKS * vpc_mem_size; |
| 1138 | int bank, addr, i = 0; |
| 1139 | |
| 1140 | if (remain < DEBUG_SECTION_SZ(size)) { |
| 1141 | SNAPSHOT_ERR_NOMEM(device, "VPC MEMORY"); |
| 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | header->type = SNAPSHOT_DEBUG_VPC_MEMORY; |
| 1146 | header->size = size; |
| 1147 | |
| 1148 | for (bank = 0; bank < VPC_MEMORY_BANKS; bank++) { |
| 1149 | for (addr = 0; addr < vpc_mem_size; addr++) { |
| 1150 | unsigned int val = bank | (addr << 4); |
| 1151 | |
| 1152 | adreno_writereg(adreno_dev, |
| 1153 | ADRENO_REG_VPC_DEBUG_RAM_SEL, val); |
| 1154 | adreno_readreg(adreno_dev, |
| 1155 | ADRENO_REG_VPC_DEBUG_RAM_READ, &data[i++]); |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | return DEBUG_SECTION_SZ(size); |
| 1160 | } |
| 1161 | |
| 1162 | /* |
| 1163 | * adreno_snapshot_cp_meq() - Save CP MEQ data in snapshot |
| 1164 | * @device: Device being snapshotted |
| 1165 | * @buf: Snapshot memory |
| 1166 | * @remain: Number of bytes left in snapshot memory |
| 1167 | * @priv: Contains the size of MEQ data |
| 1168 | */ |
| 1169 | size_t adreno_snapshot_cp_meq(struct kgsl_device *device, u8 *buf, |
| 1170 | size_t remain, void *priv) |
| 1171 | { |
| 1172 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 1173 | struct kgsl_snapshot_debug *header = (struct kgsl_snapshot_debug *)buf; |
| 1174 | unsigned int *data = (unsigned int *)(buf + sizeof(*header)); |
| 1175 | int i; |
| 1176 | int cp_meq_sz = *((int *)priv); |
| 1177 | |
| 1178 | if (remain < DEBUG_SECTION_SZ(cp_meq_sz)) { |
| 1179 | SNAPSHOT_ERR_NOMEM(device, "CP MEQ DEBUG"); |
| 1180 | return 0; |
| 1181 | } |
| 1182 | |
| 1183 | header->type = SNAPSHOT_DEBUG_CP_MEQ; |
| 1184 | header->size = cp_meq_sz; |
| 1185 | |
| 1186 | adreno_writereg(adreno_dev, ADRENO_REG_CP_MEQ_ADDR, 0x0); |
| 1187 | for (i = 0; i < cp_meq_sz; i++) |
| 1188 | adreno_readreg(adreno_dev, ADRENO_REG_CP_MEQ_DATA, &data[i]); |
| 1189 | |
| 1190 | return DEBUG_SECTION_SZ(cp_meq_sz); |
| 1191 | } |
| 1192 | |
| 1193 | static const struct adreno_vbif_snapshot_registers *vbif_registers( |
| 1194 | struct adreno_device *adreno_dev, |
| 1195 | const struct adreno_vbif_snapshot_registers *list, |
| 1196 | unsigned int count) |
| 1197 | { |
| 1198 | unsigned int version; |
| 1199 | unsigned int i; |
| 1200 | |
| 1201 | adreno_readreg(adreno_dev, ADRENO_REG_VBIF_VERSION, &version); |
| 1202 | |
| 1203 | for (i = 0; i < count; i++) { |
| 1204 | if ((list[i].version & list[i].mask) == |
| 1205 | (version & list[i].mask)) |
| 1206 | return &list[i]; |
| 1207 | } |
| 1208 | |
| 1209 | KGSL_CORE_ERR( |
| 1210 | "snapshot: Registers for VBIF version %X register were not dumped\n", |
| 1211 | version); |
| 1212 | |
| 1213 | return NULL; |
| 1214 | } |
| 1215 | |
| 1216 | void adreno_snapshot_registers(struct kgsl_device *device, |
| 1217 | struct kgsl_snapshot *snapshot, |
| 1218 | const unsigned int *regs, unsigned int count) |
| 1219 | { |
| 1220 | struct kgsl_snapshot_registers r; |
| 1221 | |
| 1222 | r.regs = regs; |
| 1223 | r.count = count; |
| 1224 | |
| 1225 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_REGS, snapshot, |
| 1226 | kgsl_snapshot_dump_registers, &r); |
| 1227 | } |
| 1228 | |
| 1229 | void adreno_snapshot_vbif_registers(struct kgsl_device *device, |
| 1230 | struct kgsl_snapshot *snapshot, |
| 1231 | const struct adreno_vbif_snapshot_registers *list, |
| 1232 | unsigned int count) |
| 1233 | { |
| 1234 | struct adreno_device *adreno_dev = ADRENO_DEVICE(device); |
| 1235 | struct kgsl_snapshot_registers regs; |
| 1236 | const struct adreno_vbif_snapshot_registers *vbif; |
| 1237 | |
| 1238 | vbif = vbif_registers(adreno_dev, list, count); |
| 1239 | |
| 1240 | if (vbif != NULL) { |
| 1241 | regs.regs = vbif->registers; |
| 1242 | regs.count = vbif->count; |
| 1243 | |
| 1244 | kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_REGS, |
| 1245 | snapshot, kgsl_snapshot_dump_registers, ®s); |
| 1246 | } |
| 1247 | } |