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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c | 440 |
1 files changed, 440 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c new file mode 100644 index 000000000..af6cac696 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c @@ -0,0 +1,440 @@ +/* + * Copyright 2019 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "priv.h" + +#include <core/firmware.h> +#include <core/memory.h> +#include <subdev/mmu.h> + +static struct nvkm_acr_hsf * +nvkm_acr_hsf_find(struct nvkm_acr *acr, const char *name) +{ + struct nvkm_acr_hsf *hsf; + list_for_each_entry(hsf, &acr->hsf, head) { + if (!strcmp(hsf->name, name)) + return hsf; + } + return NULL; +} + +int +nvkm_acr_hsf_boot(struct nvkm_acr *acr, const char *name) +{ + struct nvkm_subdev *subdev = &acr->subdev; + struct nvkm_acr_hsf *hsf; + int ret; + + hsf = nvkm_acr_hsf_find(acr, name); + if (!hsf) + return -EINVAL; + + nvkm_debug(subdev, "executing %s binary\n", hsf->name); + ret = nvkm_falcon_get(hsf->falcon, subdev); + if (ret) + return ret; + + ret = hsf->func->boot(acr, hsf); + nvkm_falcon_put(hsf->falcon, subdev); + if (ret) { + nvkm_error(subdev, "%s binary failed\n", hsf->name); + return ret; + } + + nvkm_debug(subdev, "%s binary completed successfully\n", hsf->name); + return 0; +} + +static void +nvkm_acr_unload(struct nvkm_acr *acr) +{ + if (acr->done) { + nvkm_acr_hsf_boot(acr, "unload"); + acr->done = false; + } +} + +static int +nvkm_acr_load(struct nvkm_acr *acr) +{ + struct nvkm_subdev *subdev = &acr->subdev; + struct nvkm_acr_lsf *lsf; + u64 start, limit; + int ret; + + if (list_empty(&acr->lsf)) { + nvkm_debug(subdev, "No LSF(s) present.\n"); + return 0; + } + + ret = acr->func->init(acr); + if (ret) + return ret; + + acr->func->wpr_check(acr, &start, &limit); + + if (start != acr->wpr_start || limit != acr->wpr_end) { + nvkm_error(subdev, "WPR not configured as expected: " + "%016llx-%016llx vs %016llx-%016llx\n", + acr->wpr_start, acr->wpr_end, start, limit); + return -EIO; + } + + acr->done = true; + + list_for_each_entry(lsf, &acr->lsf, head) { + if (lsf->func->boot) { + ret = lsf->func->boot(lsf->falcon); + if (ret) + break; + } + } + + return ret; +} + +static int +nvkm_acr_reload(struct nvkm_acr *acr) +{ + nvkm_acr_unload(acr); + return nvkm_acr_load(acr); +} + +static struct nvkm_acr_lsf * +nvkm_acr_falcon(struct nvkm_device *device) +{ + struct nvkm_acr *acr = device->acr; + struct nvkm_acr_lsf *lsf; + + if (acr) { + list_for_each_entry(lsf, &acr->lsf, head) { + if (lsf->func->bootstrap_falcon) + return lsf; + } + } + + return NULL; +} + +int +nvkm_acr_bootstrap_falcons(struct nvkm_device *device, unsigned long mask) +{ + struct nvkm_acr_lsf *acrflcn = nvkm_acr_falcon(device); + struct nvkm_acr *acr = device->acr; + unsigned long id; + + /* If there's no LS FW managing bootstrapping of other LS falcons, + * we depend on the HS firmware being able to do it instead. + */ + if (!acrflcn) { + /* Which isn't possible everywhere... */ + if ((mask & acr->func->bootstrap_falcons) == mask) { + int ret = nvkm_acr_reload(acr); + if (ret) + return ret; + + return acr->done ? 0 : -EINVAL; + } + return -ENOSYS; + } + + if ((mask & acrflcn->func->bootstrap_falcons) != mask) + return -ENOSYS; + + if (acrflcn->func->bootstrap_multiple_falcons) { + return acrflcn->func-> + bootstrap_multiple_falcons(acrflcn->falcon, mask); + } + + for_each_set_bit(id, &mask, NVKM_ACR_LSF_NUM) { + int ret = acrflcn->func->bootstrap_falcon(acrflcn->falcon, id); + if (ret) + return ret; + } + + return 0; +} + +bool +nvkm_acr_managed_falcon(struct nvkm_device *device, enum nvkm_acr_lsf_id id) +{ + struct nvkm_acr *acr = device->acr; + + if (acr) { + if (acr->managed_falcons & BIT_ULL(id)) + return true; + } + + return false; +} + +static int +nvkm_acr_fini(struct nvkm_subdev *subdev, bool suspend) +{ + nvkm_acr_unload(nvkm_acr(subdev)); + return 0; +} + +static int +nvkm_acr_init(struct nvkm_subdev *subdev) +{ + if (!nvkm_acr_falcon(subdev->device)) + return 0; + + return nvkm_acr_load(nvkm_acr(subdev)); +} + +static void +nvkm_acr_cleanup(struct nvkm_acr *acr) +{ + nvkm_acr_lsfw_del_all(acr); + nvkm_acr_hsfw_del_all(acr); + nvkm_firmware_put(acr->wpr_fw); + acr->wpr_fw = NULL; +} + +static int +nvkm_acr_oneinit(struct nvkm_subdev *subdev) +{ + struct nvkm_device *device = subdev->device; + struct nvkm_acr *acr = nvkm_acr(subdev); + struct nvkm_acr_hsfw *hsfw; + struct nvkm_acr_lsfw *lsfw, *lsft; + struct nvkm_acr_lsf *lsf; + u32 wpr_size = 0; + u64 falcons; + int ret, i; + + if (list_empty(&acr->hsfw)) { + nvkm_debug(subdev, "No HSFW(s)\n"); + nvkm_acr_cleanup(acr); + return 0; + } + + /* Determine layout/size of WPR image up-front, as we need to know + * it to allocate memory before we begin constructing it. + */ + list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) { + /* Cull unknown falcons that are present in WPR image. */ + if (acr->wpr_fw) { + if (!lsfw->func) { + nvkm_acr_lsfw_del(lsfw); + continue; + } + + wpr_size = acr->wpr_fw->size; + } + + /* Ensure we've fetched falcon configuration. */ + ret = nvkm_falcon_get(lsfw->falcon, subdev); + if (ret) + return ret; + + nvkm_falcon_put(lsfw->falcon, subdev); + + if (!(lsf = kmalloc(sizeof(*lsf), GFP_KERNEL))) + return -ENOMEM; + lsf->func = lsfw->func; + lsf->falcon = lsfw->falcon; + lsf->id = lsfw->id; + list_add_tail(&lsf->head, &acr->lsf); + acr->managed_falcons |= BIT_ULL(lsf->id); + } + + /* Ensure the falcon that'll provide ACR functions is booted first. */ + lsf = nvkm_acr_falcon(device); + if (lsf) { + falcons = lsf->func->bootstrap_falcons; + list_move(&lsf->head, &acr->lsf); + } else { + falcons = acr->func->bootstrap_falcons; + } + + /* Cull falcons that can't be bootstrapped, or the HSFW can fail to + * boot and leave the GPU in a weird state. + */ + list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) { + if (!(falcons & BIT_ULL(lsfw->id))) { + nvkm_warn(subdev, "%s falcon cannot be bootstrapped\n", + nvkm_acr_lsf_id(lsfw->id)); + nvkm_acr_lsfw_del(lsfw); + } + } + + if (!acr->wpr_fw || acr->wpr_comp) + wpr_size = acr->func->wpr_layout(acr); + + /* Allocate/Locate WPR + fill ucode blob pointer. + * + * dGPU: allocate WPR + shadow blob + * Tegra: locate WPR with regs, ensure size is sufficient, + * allocate ucode blob. + */ + ret = acr->func->wpr_alloc(acr, wpr_size); + if (ret) + return ret; + + nvkm_debug(subdev, "WPR region is from 0x%llx-0x%llx (shadow 0x%llx)\n", + acr->wpr_start, acr->wpr_end, acr->shadow_start); + + /* Write WPR to ucode blob. */ + nvkm_kmap(acr->wpr); + if (acr->wpr_fw && !acr->wpr_comp) + nvkm_wobj(acr->wpr, 0, acr->wpr_fw->data, acr->wpr_fw->size); + + if (!acr->wpr_fw || acr->wpr_comp) + acr->func->wpr_build(acr, nvkm_acr_falcon(device)); + acr->func->wpr_patch(acr, (s64)acr->wpr_start - acr->wpr_prev); + + if (acr->wpr_fw && acr->wpr_comp) { + nvkm_kmap(acr->wpr); + for (i = 0; i < acr->wpr_fw->size; i += 4) { + u32 us = nvkm_ro32(acr->wpr, i); + u32 fw = ((u32 *)acr->wpr_fw->data)[i/4]; + if (fw != us) { + nvkm_warn(subdev, "%08x: %08x %08x\n", + i, us, fw); + } + } + return -EINVAL; + } + nvkm_done(acr->wpr); + + /* Allocate instance block for ACR-related stuff. */ + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0, true, + &acr->inst); + if (ret) + return ret; + + ret = nvkm_vmm_new(device, 0, 0, NULL, 0, NULL, "acr", &acr->vmm); + if (ret) + return ret; + + acr->vmm->debug = acr->subdev.debug; + + ret = nvkm_vmm_join(acr->vmm, acr->inst); + if (ret) + return ret; + + /* Load HS firmware blobs into ACR VMM. */ + list_for_each_entry(hsfw, &acr->hsfw, head) { + nvkm_debug(subdev, "loading %s fw\n", hsfw->name); + ret = hsfw->func->load(acr, hsfw); + if (ret) + return ret; + } + + /* Kill temporary data. */ + nvkm_acr_cleanup(acr); + return 0; +} + +static void * +nvkm_acr_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_acr *acr = nvkm_acr(subdev); + struct nvkm_acr_hsf *hsf, *hst; + struct nvkm_acr_lsf *lsf, *lst; + + list_for_each_entry_safe(hsf, hst, &acr->hsf, head) { + nvkm_vmm_put(acr->vmm, &hsf->vma); + nvkm_memory_unref(&hsf->ucode); + kfree(hsf->imem); + list_del(&hsf->head); + kfree(hsf); + } + + nvkm_vmm_part(acr->vmm, acr->inst); + nvkm_vmm_unref(&acr->vmm); + nvkm_memory_unref(&acr->inst); + + nvkm_memory_unref(&acr->wpr); + + list_for_each_entry_safe(lsf, lst, &acr->lsf, head) { + list_del(&lsf->head); + kfree(lsf); + } + + nvkm_acr_cleanup(acr); + return acr; +} + +static const struct nvkm_subdev_func +nvkm_acr = { + .dtor = nvkm_acr_dtor, + .oneinit = nvkm_acr_oneinit, + .init = nvkm_acr_init, + .fini = nvkm_acr_fini, +}; + +static int +nvkm_acr_ctor_wpr(struct nvkm_acr *acr, int ver) +{ + struct nvkm_subdev *subdev = &acr->subdev; + struct nvkm_device *device = subdev->device; + int ret; + + ret = nvkm_firmware_get(subdev, "acr/wpr", ver, &acr->wpr_fw); + if (ret < 0) + return ret; + + /* Pre-add LSFs in the order they appear in the FW WPR image so that + * we're able to do a binary comparison with our own generator. + */ + ret = acr->func->wpr_parse(acr); + if (ret) + return ret; + + acr->wpr_comp = nvkm_boolopt(device->cfgopt, "NvAcrWprCompare", false); + acr->wpr_prev = nvkm_longopt(device->cfgopt, "NvAcrWprPrevAddr", 0); + return 0; +} + +int +nvkm_acr_new_(const struct nvkm_acr_fwif *fwif, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_acr **pacr) +{ + struct nvkm_acr *acr; + long wprfw; + + if (!(acr = *pacr = kzalloc(sizeof(*acr), GFP_KERNEL))) + return -ENOMEM; + nvkm_subdev_ctor(&nvkm_acr, device, type, inst, &acr->subdev); + INIT_LIST_HEAD(&acr->hsfw); + INIT_LIST_HEAD(&acr->lsfw); + INIT_LIST_HEAD(&acr->hsf); + INIT_LIST_HEAD(&acr->lsf); + + fwif = nvkm_firmware_load(&acr->subdev, fwif, "Acr", acr); + if (IS_ERR(fwif)) + return PTR_ERR(fwif); + + acr->func = fwif->func; + + wprfw = nvkm_longopt(device->cfgopt, "NvAcrWpr", -1); + if (wprfw >= 0) { + int ret = nvkm_acr_ctor_wpr(acr, wprfw); + if (ret) + return ret; + } + + return 0; +} |