From b58b41716302ed95df16d8fcefc7edb1ce5cf794 Mon Sep 17 00:00:00 2001 From: Alexandre Courbot Date: Thu, 26 Jan 2017 17:23:11 +0900 Subject: [PATCH] drm/nouveau/secboot: support for unload blob bootloader If the load and unload falcons are different, then a different bootloader must also be used. Support this case. Signed-off-by: Alexandre Courbot Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c | 64 ++++++++++++---------- .../gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h | 3 + 2 files changed, 37 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c index 413275d..77ed8f0 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c @@ -737,27 +737,6 @@ cleanup: return ret; } -static int -acr_r352_prepare_hsbl_blob(struct acr_r352 *acr) -{ - const struct nvkm_subdev *subdev = acr->base.subdev; - struct fw_bin_header *hdr; - struct fw_bl_desc *hsbl_desc; - - acr->hsbl_blob = nvkm_acr_load_firmware(subdev, "acr/bl", 0); - if (IS_ERR(acr->hsbl_blob)) { - int ret = PTR_ERR(acr->hsbl_blob); - - acr->hsbl_blob = NULL; - return ret; - } - - hdr = acr->hsbl_blob; - hsbl_desc = acr->hsbl_blob + hdr->header_offset; - - return 0; -} - /** * acr_r352_load_blobs - load blobs common to all ACR V1 versions. * @@ -768,6 +747,7 @@ acr_r352_prepare_hsbl_blob(struct acr_r352 *acr) int acr_r352_load_blobs(struct acr_r352 *acr, struct nvkm_secboot *sb) { + struct nvkm_subdev *subdev = &sb->subdev; int ret; /* Firmware already loaded? */ @@ -799,9 +779,24 @@ acr_r352_load_blobs(struct acr_r352 *acr, struct nvkm_secboot *sb) /* Load the HS firmware bootloader */ if (!acr->hsbl_blob) { - ret = acr_r352_prepare_hsbl_blob(acr); - if (ret) + acr->hsbl_blob = nvkm_acr_load_firmware(subdev, "acr/bl", 0); + if (IS_ERR(acr->hsbl_blob)) { + ret = PTR_ERR(acr->hsbl_blob); + acr->hsbl_blob = NULL; return ret; + } + + if (acr->base.boot_falcon != NVKM_SECBOOT_FALCON_PMU) { + acr->hsbl_unload_blob = nvkm_acr_load_firmware(subdev, + "acr/unload_bl", 0); + if (IS_ERR(acr->hsbl_unload_blob)) { + ret = PTR_ERR(acr->hsbl_unload_blob); + acr->hsbl_unload_blob = NULL; + return ret; + } + } else { + acr->hsbl_unload_blob = acr->hsbl_blob; + } } acr->firmware_ok = true; @@ -820,26 +815,33 @@ acr_r352_load(struct nvkm_acr *_acr, struct nvkm_falcon *falcon, struct nvkm_gpuobj *blob, u64 offset) { struct acr_r352 *acr = acr_r352(_acr); - struct fw_bin_header *hdr = acr->hsbl_blob; - struct fw_bl_desc *hsbl_desc = acr->hsbl_blob + hdr->header_offset; - void *blob_data = acr->hsbl_blob + hdr->data_offset; - void *hsbl_code = blob_data + hsbl_desc->code_off; - void *hsbl_data = blob_data + hsbl_desc->data_off; - u32 code_size = ALIGN(hsbl_desc->code_size, 256); - const struct hsf_load_header *load_hdr; const u32 bl_desc_size = acr->func->hs_bl_desc_size; + const struct hsf_load_header *load_hdr; + struct fw_bin_header *bl_hdr; + struct fw_bl_desc *hsbl_desc; + void *bl, *blob_data, *hsbl_code, *hsbl_data; + u32 code_size; u8 bl_desc[bl_desc_size]; /* Find the bootloader descriptor for our blob and copy it */ if (blob == acr->load_blob) { load_hdr = &acr->load_bl_header; + bl = acr->hsbl_blob; } else if (blob == acr->unload_blob) { load_hdr = &acr->unload_bl_header; + bl = acr->hsbl_unload_blob; } else { nvkm_error(_acr->subdev, "invalid secure boot blob!\n"); return -EINVAL; } + bl_hdr = bl; + hsbl_desc = bl + bl_hdr->header_offset; + blob_data = bl + bl_hdr->data_offset; + hsbl_code = blob_data + hsbl_desc->code_off; + hsbl_data = blob_data + hsbl_desc->data_off; + code_size = ALIGN(hsbl_desc->code_size, 256); + /* * Copy HS bootloader data */ @@ -1087,6 +1089,8 @@ acr_r352_dtor(struct nvkm_acr *_acr) nvkm_gpuobj_del(&acr->unload_blob); + if (_acr->boot_falcon != NVKM_SECBOOT_FALCON_PMU) + kfree(acr->hsbl_unload_blob); kfree(acr->hsbl_blob); nvkm_gpuobj_del(&acr->load_blob); nvkm_gpuobj_del(&acr->ls_blob); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h index 1b9f5c8..b610152 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h @@ -142,6 +142,9 @@ struct acr_r352 { /* HS bootloader */ void *hsbl_blob; + /* HS bootloader for unload blob, if using a different falcon */ + void *hsbl_unload_blob; + /* LS FWs, to be loaded by the HS ACR */ struct nvkm_gpuobj *ls_blob; -- 2.7.4