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1/*2 * Copyright 2019 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include "priv.h"23 24#include <core/firmware.h>25#include <core/memory.h>26#include <subdev/mmu.h>27#include <subdev/gsp.h>28#include <subdev/pmu.h>29#include <engine/sec2.h>30#include <engine/nvdec.h>31 32static struct nvkm_acr_hsfw *33nvkm_acr_hsfw_find(struct nvkm_acr *acr, const char *name)34{35 struct nvkm_acr_hsfw *hsfw;36 37 list_for_each_entry(hsfw, &acr->hsfw, head) {38 if (!strcmp(hsfw->fw.fw.name, name))39 return hsfw;40 }41 42 return NULL;43}44 45int46nvkm_acr_hsfw_boot(struct nvkm_acr *acr, const char *name)47{48 struct nvkm_subdev *subdev = &acr->subdev;49 struct nvkm_acr_hsfw *hsfw;50 51 hsfw = nvkm_acr_hsfw_find(acr, name);52 if (!hsfw)53 return -EINVAL;54 55 return nvkm_falcon_fw_boot(&hsfw->fw, subdev, true, NULL, NULL,56 hsfw->boot_mbox0, hsfw->intr_clear);57}58 59static struct nvkm_acr_lsf *60nvkm_acr_rtos(struct nvkm_acr *acr)61{62 struct nvkm_acr_lsf *lsf;63 64 if (acr) {65 list_for_each_entry(lsf, &acr->lsf, head) {66 if (lsf->func->bootstrap_falcon)67 return lsf;68 }69 }70 71 return NULL;72}73 74static void75nvkm_acr_unload(struct nvkm_acr *acr)76{77 if (acr->done) {78 if (acr->rtos) {79 nvkm_subdev_unref(acr->rtos->falcon->owner);80 acr->rtos = NULL;81 }82 83 nvkm_acr_hsfw_boot(acr, "unload");84 acr->done = false;85 }86}87 88static int89nvkm_acr_load(struct nvkm_acr *acr)90{91 struct nvkm_subdev *subdev = &acr->subdev;92 struct nvkm_acr_lsf *rtos = nvkm_acr_rtos(acr);93 u64 start, limit;94 int ret;95 96 if (list_empty(&acr->lsf)) {97 nvkm_debug(subdev, "No LSF(s) present.\n");98 return 0;99 }100 101 ret = acr->func->init(acr);102 if (ret)103 return ret;104 105 acr->func->wpr_check(acr, &start, &limit);106 107 if (start != acr->wpr_start || limit != acr->wpr_end) {108 nvkm_error(subdev, "WPR not configured as expected: "109 "%016llx-%016llx vs %016llx-%016llx\n",110 acr->wpr_start, acr->wpr_end, start, limit);111 return -EIO;112 }113 114 acr->done = true;115 116 if (rtos) {117 ret = nvkm_subdev_ref(rtos->falcon->owner);118 if (ret)119 return ret;120 121 acr->rtos = rtos;122 }123 124 return ret;125}126 127static int128nvkm_acr_reload(struct nvkm_acr *acr)129{130 nvkm_acr_unload(acr);131 return nvkm_acr_load(acr);132}133 134int135nvkm_acr_bootstrap_falcons(struct nvkm_device *device, unsigned long mask)136{137 struct nvkm_acr *acr = device->acr;138 struct nvkm_acr_lsf *rtos = nvkm_acr_rtos(acr);139 unsigned long id;140 141 /* If there's no LS FW managing bootstrapping of other LS falcons,142 * we depend on the HS firmware being able to do it instead.143 */144 if (!rtos) {145 /* Which isn't possible everywhere... */146 if ((mask & acr->func->bootstrap_falcons) == mask) {147 int ret = nvkm_acr_reload(acr);148 if (ret)149 return ret;150 151 return acr->done ? 0 : -EINVAL;152 }153 return -ENOSYS;154 }155 156 if ((mask & rtos->func->bootstrap_falcons) != mask)157 return -ENOSYS;158 159 if (rtos->func->bootstrap_multiple_falcons)160 return rtos->func->bootstrap_multiple_falcons(rtos->falcon, mask);161 162 for_each_set_bit(id, &mask, NVKM_ACR_LSF_NUM) {163 int ret = rtos->func->bootstrap_falcon(rtos->falcon, id);164 if (ret)165 return ret;166 }167 168 return 0;169}170 171bool172nvkm_acr_managed_falcon(struct nvkm_device *device, enum nvkm_acr_lsf_id id)173{174 struct nvkm_acr *acr = device->acr;175 176 if (acr) {177 if (acr->managed_falcons & BIT_ULL(id))178 return true;179 }180 181 return false;182}183 184static int185nvkm_acr_fini(struct nvkm_subdev *subdev, bool suspend)186{187 if (!subdev->use.enabled)188 return 0;189 190 nvkm_acr_unload(nvkm_acr(subdev));191 return 0;192}193 194static int195nvkm_acr_init(struct nvkm_subdev *subdev)196{197 struct nvkm_acr *acr = nvkm_acr(subdev);198 199 if (!nvkm_acr_rtos(acr))200 return 0;201 202 return nvkm_acr_load(acr);203}204 205static void206nvkm_acr_cleanup(struct nvkm_acr *acr)207{208 nvkm_acr_lsfw_del_all(acr);209 210 nvkm_firmware_put(acr->wpr_fw);211 acr->wpr_fw = NULL;212}213 214static int215nvkm_acr_oneinit(struct nvkm_subdev *subdev)216{217 struct nvkm_device *device = subdev->device;218 struct nvkm_acr *acr = nvkm_acr(subdev);219 struct nvkm_acr_hsfw *hsfw;220 struct nvkm_acr_lsfw *lsfw, *lsft;221 struct nvkm_acr_lsf *lsf, *rtos;222 struct nvkm_falcon *falcon;223 u32 wpr_size = 0;224 u64 falcons;225 int ret, i;226 227 if (list_empty(&acr->hsfw) || !acr->func || !acr->func->wpr_layout) {228 nvkm_debug(subdev, "No HSFW(s)\n");229 nvkm_acr_cleanup(acr);230 return 0;231 }232 233 /* Determine layout/size of WPR image up-front, as we need to know234 * it to allocate memory before we begin constructing it.235 */236 list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) {237 /* Cull unknown falcons that are present in WPR image. */238 if (acr->wpr_fw) {239 if (!lsfw->func) {240 nvkm_acr_lsfw_del(lsfw);241 continue;242 }243 244 wpr_size = acr->wpr_fw->size;245 }246 247 /* Ensure we've fetched falcon configuration. */248 ret = nvkm_falcon_get(lsfw->falcon, subdev);249 if (ret)250 return ret;251 252 nvkm_falcon_put(lsfw->falcon, subdev);253 254 if (!(lsf = kmalloc(sizeof(*lsf), GFP_KERNEL)))255 return -ENOMEM;256 lsf->func = lsfw->func;257 lsf->falcon = lsfw->falcon;258 lsf->id = lsfw->id;259 list_add_tail(&lsf->head, &acr->lsf);260 acr->managed_falcons |= BIT_ULL(lsf->id);261 }262 263 /* Ensure the falcon that'll provide ACR functions is booted first. */264 rtos = nvkm_acr_rtos(acr);265 if (rtos) {266 falcons = rtos->func->bootstrap_falcons;267 list_move(&rtos->head, &acr->lsf);268 } else {269 falcons = acr->func->bootstrap_falcons;270 }271 272 /* Cull falcons that can't be bootstrapped, or the HSFW can fail to273 * boot and leave the GPU in a weird state.274 */275 list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) {276 if (!(falcons & BIT_ULL(lsfw->id))) {277 nvkm_warn(subdev, "%s falcon cannot be bootstrapped\n",278 nvkm_acr_lsf_id(lsfw->id));279 nvkm_acr_lsfw_del(lsfw);280 }281 }282 283 if (!acr->wpr_fw || acr->wpr_comp)284 wpr_size = acr->func->wpr_layout(acr);285 286 /* Allocate/Locate WPR + fill ucode blob pointer.287 *288 * dGPU: allocate WPR + shadow blob289 * Tegra: locate WPR with regs, ensure size is sufficient,290 * allocate ucode blob.291 */292 ret = acr->func->wpr_alloc(acr, wpr_size);293 if (ret)294 return ret;295 296 nvkm_debug(subdev, "WPR region is from 0x%llx-0x%llx (shadow 0x%llx)\n",297 acr->wpr_start, acr->wpr_end, acr->shadow_start);298 299 /* Write WPR to ucode blob. */300 nvkm_kmap(acr->wpr);301 if (acr->wpr_fw && !acr->wpr_comp)302 nvkm_wobj(acr->wpr, 0, acr->wpr_fw->data, acr->wpr_fw->size);303 304 if (!acr->wpr_fw || acr->wpr_comp)305 acr->func->wpr_build(acr, rtos);306 acr->func->wpr_patch(acr, (s64)acr->wpr_start - acr->wpr_prev);307 308 if (acr->wpr_fw && acr->wpr_comp) {309 nvkm_kmap(acr->wpr);310 for (i = 0; i < acr->wpr_fw->size; i += 4) {311 u32 us = nvkm_ro32(acr->wpr, i);312 u32 fw = ((u32 *)acr->wpr_fw->data)[i/4];313 if (fw != us) {314 nvkm_warn(subdev, "%08x: %08x %08x\n",315 i, us, fw);316 }317 }318 return -EINVAL;319 }320 nvkm_done(acr->wpr);321 322 /* Allocate instance block for ACR-related stuff. */323 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0, true,324 &acr->inst);325 if (ret)326 return ret;327 328 ret = nvkm_vmm_new(device, 0, 0, NULL, 0, NULL, "acr", &acr->vmm);329 if (ret)330 return ret;331 332 acr->vmm->debug = acr->subdev.debug;333 334 ret = nvkm_vmm_join(acr->vmm, acr->inst);335 if (ret)336 return ret;337 338 /* Load HS firmware blobs into ACR VMM. */339 list_for_each_entry(hsfw, &acr->hsfw, head) {340 switch (hsfw->falcon_id) {341 case NVKM_ACR_HSF_PMU : falcon = &device->pmu->falcon; break;342 case NVKM_ACR_HSF_SEC2: falcon = &device->sec2->falcon; break;343 case NVKM_ACR_HSF_GSP : falcon = &device->gsp->falcon; break;344 default:345 WARN_ON(1);346 return -EINVAL;347 }348 349 ret = nvkm_falcon_fw_oneinit(&hsfw->fw, falcon, acr->vmm, acr->inst);350 if (ret)351 return ret;352 }353 354 /* Kill temporary data. */355 nvkm_acr_cleanup(acr);356 return 0;357}358 359static void *360nvkm_acr_dtor(struct nvkm_subdev *subdev)361{362 struct nvkm_acr *acr = nvkm_acr(subdev);363 struct nvkm_acr_hsfw *hsfw, *hsft;364 struct nvkm_acr_lsf *lsf, *lst;365 366 list_for_each_entry_safe(hsfw, hsft, &acr->hsfw, head) {367 nvkm_falcon_fw_dtor(&hsfw->fw);368 list_del(&hsfw->head);369 kfree(hsfw);370 }371 372 nvkm_vmm_part(acr->vmm, acr->inst);373 nvkm_vmm_unref(&acr->vmm);374 nvkm_memory_unref(&acr->inst);375 376 nvkm_memory_unref(&acr->wpr);377 378 list_for_each_entry_safe(lsf, lst, &acr->lsf, head) {379 list_del(&lsf->head);380 kfree(lsf);381 }382 383 nvkm_acr_cleanup(acr);384 return acr;385}386 387static const struct nvkm_subdev_func388nvkm_acr = {389 .dtor = nvkm_acr_dtor,390 .oneinit = nvkm_acr_oneinit,391 .init = nvkm_acr_init,392 .fini = nvkm_acr_fini,393};394 395static int396nvkm_acr_ctor_wpr(struct nvkm_acr *acr, int ver)397{398 struct nvkm_subdev *subdev = &acr->subdev;399 struct nvkm_device *device = subdev->device;400 int ret;401 402 ret = nvkm_firmware_get(subdev, "acr/wpr", ver, &acr->wpr_fw);403 if (ret < 0)404 return ret;405 406 /* Pre-add LSFs in the order they appear in the FW WPR image so that407 * we're able to do a binary comparison with our own generator.408 */409 ret = acr->func->wpr_parse(acr);410 if (ret)411 return ret;412 413 acr->wpr_comp = nvkm_boolopt(device->cfgopt, "NvAcrWprCompare", false);414 acr->wpr_prev = nvkm_longopt(device->cfgopt, "NvAcrWprPrevAddr", 0);415 return 0;416}417 418int419nvkm_acr_new_(const struct nvkm_acr_fwif *fwif, struct nvkm_device *device,420 enum nvkm_subdev_type type, int inst, struct nvkm_acr **pacr)421{422 struct nvkm_acr *acr;423 long wprfw;424 425 if (!(acr = *pacr = kzalloc(sizeof(*acr), GFP_KERNEL)))426 return -ENOMEM;427 nvkm_subdev_ctor(&nvkm_acr, device, type, inst, &acr->subdev);428 INIT_LIST_HEAD(&acr->hsfw);429 INIT_LIST_HEAD(&acr->lsfw);430 INIT_LIST_HEAD(&acr->lsf);431 432 fwif = nvkm_firmware_load(&acr->subdev, fwif, "Acr", acr);433 if (IS_ERR(fwif))434 return PTR_ERR(fwif);435 436 acr->func = fwif->func;437 438 wprfw = nvkm_longopt(device->cfgopt, "NvAcrWpr", -1);439 if (wprfw >= 0) {440 int ret = nvkm_acr_ctor_wpr(acr, wprfw);441 if (ret)442 return ret;443 }444 445 return 0;446}447