diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/secboot.h | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.c | 54 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.h | 69 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c | 910 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h | 126 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r361.c | 135 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/base.c | 84 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c | 1152 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.h | 43 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c | 125 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode.h | 245 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_gr.c | 167 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h | 328 |
14 files changed, 1877 insertions, 1574 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/secboot.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/secboot.h index be04c34f25e3..6e9e0450220c 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/secboot.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/secboot.h @@ -34,15 +34,14 @@ enum nvkm_secboot_falcon { NVKM_SECBOOT_FALCON_INVALID = 0xffffffff, }; -/** - * @base: base IO address of the falcon performing secure boot - * @irq_mask: IRQ mask of the falcon performing secure boot - * @enable_mask: enable mask of the falcon performing secure boot -*/ struct nvkm_secboot { const struct nvkm_secboot_func *func; + struct nvkm_acr *acr; struct nvkm_subdev subdev; struct nvkm_falcon *boot_falcon; + + u64 wpr_addr; + u32 wpr_size; }; #define nvkm_secboot(p) container_of((p), struct nvkm_secboot, subdev) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild index b02b868a6589..5076d1500f47 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild @@ -1,3 +1,7 @@ nvkm-y += nvkm/subdev/secboot/base.o +nvkm-y += nvkm/subdev/secboot/ls_ucode_gr.o +nvkm-y += nvkm/subdev/secboot/acr.o +nvkm-y += nvkm/subdev/secboot/acr_r352.o +nvkm-y += nvkm/subdev/secboot/acr_r361.o nvkm-y += nvkm/subdev/secboot/gm200.o nvkm-y += nvkm/subdev/secboot/gm20b.o diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.c new file mode 100644 index 000000000000..75dc06557877 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.c @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "acr.h" + +#include <core/firmware.h> + +/** + * Convenience function to duplicate a firmware file in memory and check that + * it has the required minimum size. + */ +void * +nvkm_acr_load_firmware(const struct nvkm_subdev *subdev, const char *name, + size_t min_size) +{ + const struct firmware *fw; + void *blob; + int ret; + + ret = nvkm_firmware_get(subdev->device, name, &fw); + if (ret) + return ERR_PTR(ret); + if (fw->size < min_size) { + nvkm_error(subdev, "%s is smaller than expected size %zu\n", + name, min_size); + nvkm_firmware_put(fw); + return ERR_PTR(-EINVAL); + } + blob = kmemdup(fw->data, fw->size, GFP_KERNEL); + nvkm_firmware_put(fw); + if (!blob) + return ERR_PTR(-ENOMEM); + + return blob; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.h new file mode 100644 index 000000000000..97795b342b6f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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. + */ +#ifndef __NVKM_SECBOOT_ACR_H__ +#define __NVKM_SECBOOT_ACR_H__ + +#include "priv.h" + +struct nvkm_acr; + +/** + * struct nvkm_acr_func - properties and functions specific to an ACR + * + * @load: make the ACR ready to run on the given secboot device + * @reset: reset the specified falcon + * @start: start the specified falcon (assumed to have been reset) + */ +struct nvkm_acr_func { + void (*dtor)(struct nvkm_acr *); + int (*oneinit)(struct nvkm_acr *, struct nvkm_secboot *); + int (*fini)(struct nvkm_acr *, struct nvkm_secboot *, bool); + int (*load)(struct nvkm_acr *, struct nvkm_secboot *, + struct nvkm_gpuobj *, u64); + int (*reset)(struct nvkm_acr *, struct nvkm_secboot *, + enum nvkm_secboot_falcon); + int (*start)(struct nvkm_acr *, struct nvkm_secboot *, + enum nvkm_secboot_falcon); +}; + +/** + * struct nvkm_acr - instance of an ACR + * + * @boot_falcon: ID of the falcon that will perform secure boot + * @managed_falcons: bitfield of falcons managed by this ACR + * @start_address: virtual start address of the HS bootloader + */ +struct nvkm_acr { + const struct nvkm_acr_func *func; + const struct nvkm_subdev *subdev; + + enum nvkm_secboot_falcon boot_falcon; + unsigned long managed_falcons; + u32 start_address; +}; + +void *nvkm_acr_load_firmware(const struct nvkm_subdev *, const char *, size_t); + +struct nvkm_acr *acr_r352_new(unsigned long); +struct nvkm_acr *acr_r361_new(unsigned long); + +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c new file mode 100644 index 000000000000..d8cf06d4efd0 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c @@ -0,0 +1,910 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "acr_r352.h" +#include "ls_ucode.h" + +#include <core/gpuobj.h> +#include <core/firmware.h> +#include <engine/falcon.h> + +/** + * struct hsf_fw_header - HS firmware descriptor + * @sig_dbg_offset: offset of the debug signature + * @sig_dbg_size: size of the debug signature + * @sig_prod_offset: offset of the production signature + * @sig_prod_size: size of the production signature + * @patch_loc: offset of the offset (sic) of where the signature is + * @patch_sig: offset of the offset (sic) to add to sig_*_offset + * @hdr_offset: offset of the load header (see struct hs_load_header) + * @hdr_size: size of above header + * + * This structure is embedded in the HS firmware image at + * hs_bin_hdr.header_offset. + */ +struct hsf_fw_header { + u32 sig_dbg_offset; + u32 sig_dbg_size; + u32 sig_prod_offset; + u32 sig_prod_size; + u32 patch_loc; + u32 patch_sig; + u32 hdr_offset; + u32 hdr_size; +}; + +/** + * struct acr_r352_flcn_bl_desc - DMEM bootloader descriptor + * @signature: 16B signature for secure code. 0s if no secure code + * @ctx_dma: DMA context to be used by BL while loading code/data + * @code_dma_base: 256B-aligned Physical FB Address where code is located + * (falcon's $xcbase register) + * @non_sec_code_off: offset from code_dma_base where the non-secure code is + * located. The offset must be multiple of 256 to help perf + * @non_sec_code_size: the size of the nonSecure code part. + * @sec_code_off: offset from code_dma_base where the secure code is + * located. The offset must be multiple of 256 to help perf + * @sec_code_size: offset from code_dma_base where the secure code is + * located. The offset must be multiple of 256 to help perf + * @code_entry_point: code entry point which will be invoked by BL after + * code is loaded. + * @data_dma_base: 256B aligned Physical FB Address where data is located. + * (falcon's $xdbase register) + * @data_size: size of data block. Should be multiple of 256B + * + * Structure used by the bootloader to load the rest of the code. This has + * to be filled by host and copied into DMEM at offset provided in the + * hsflcn_bl_desc.bl_desc_dmem_load_off. + */ +struct acr_r352_flcn_bl_desc { + u32 reserved[4]; + u32 signature[4]; + u32 ctx_dma; + u32 code_dma_base; + u32 non_sec_code_off; + u32 non_sec_code_size; + u32 sec_code_off; + u32 sec_code_size; + u32 code_entry_point; + u32 data_dma_base; + u32 data_size; +}; + +/** + * acr_r352_generate_flcn_bl_desc - generate generic BL descriptor for LS image + */ +static void +acr_r352_generate_flcn_bl_desc(const struct nvkm_acr *acr, + const struct ls_ucode_img *img, u64 wpr_addr, + void *_desc) +{ + struct acr_r352_flcn_bl_desc *desc = _desc; + const struct ls_ucode_img_desc *pdesc = &img->ucode_desc; + u64 base, addr_code, addr_data; + + base = wpr_addr + img->lsb_header.ucode_off + pdesc->app_start_offset; + addr_code = (base + pdesc->app_resident_code_offset) >> 8; + addr_data = (base + pdesc->app_resident_data_offset) >> 8; + + memset(desc, 0, sizeof(*desc)); + desc->ctx_dma = FALCON_DMAIDX_UCODE; + desc->code_dma_base = lower_32_bits(addr_code); + desc->non_sec_code_off = pdesc->app_resident_code_offset; + desc->non_sec_code_size = pdesc->app_resident_code_size; + desc->code_entry_point = pdesc->app_imem_entry; + desc->data_dma_base = lower_32_bits(addr_data); + desc->data_size = pdesc->app_resident_data_size; +} + + +/** + * struct hsflcn_acr_desc - data section of the HS firmware + * + * This header is to be copied at the beginning of DMEM by the HS bootloader. + * + * @signature: signature of ACR ucode + * @wpr_region_id: region ID holding the WPR header and its details + * @wpr_offset: offset from the WPR region holding the wpr header + * @regions: region descriptors + * @nonwpr_ucode_blob_size: size of LS blob + * @nonwpr_ucode_blob_start: FB location of LS blob is + */ +struct hsflcn_acr_desc { + union { + u8 reserved_dmem[0x200]; + u32 signatures[4]; + } ucode_reserved_space; + u32 wpr_region_id; + u32 wpr_offset; + u32 mmu_mem_range; +#define FLCN_ACR_MAX_REGIONS 2 + struct { + u32 no_regions; + struct { + u32 start_addr; + u32 end_addr; + u32 region_id; + u32 read_mask; + u32 write_mask; + u32 client_mask; + } region_props[FLCN_ACR_MAX_REGIONS]; + } regions; + u32 ucode_blob_size; + u64 ucode_blob_base __aligned(8); + struct { + u32 vpr_enabled; + u32 vpr_start; + u32 vpr_end; + u32 hdcp_policies; + } vpr_desc; +}; + + +/* + * Low-secure blob creation + */ + +typedef int (*lsf_load_func)(const struct nvkm_subdev *, struct ls_ucode_img *); + +/** + * ls_ucode_img_load() - create a lsf_ucode_img and load it + */ +static struct ls_ucode_img * +ls_ucode_img_load(const struct nvkm_subdev *subdev, lsf_load_func load_func) +{ + struct ls_ucode_img *img; + int ret; + + img = kzalloc(sizeof(*img), GFP_KERNEL); + if (!img) + return ERR_PTR(-ENOMEM); + + ret = load_func(subdev, img); + + if (ret) { + kfree(img); + return ERR_PTR(ret); + } + + return img; +} + +#define LSF_LSB_HEADER_ALIGN 256 +#define LSF_BL_DATA_ALIGN 256 +#define LSF_BL_DATA_SIZE_ALIGN 256 +#define LSF_BL_CODE_SIZE_ALIGN 256 +#define LSF_UCODE_DATA_ALIGN 4096 + +/** + * ls_ucode_img_fill_headers - fill the WPR and LSB headers of an image + * @acr: ACR to use + * @img: image to generate for + * @offset: offset in the WPR region where this image starts + * + * Allocate space in the WPR area from offset and write the WPR and LSB headers + * accordingly. + * + * Return: offset at the end of this image. + */ +static u32 +ls_ucode_img_fill_headers(struct acr_r352 *acr, struct ls_ucode_img *img, + u32 offset) +{ + struct lsf_wpr_header *whdr = &img->wpr_header; + struct lsf_lsb_header *lhdr = &img->lsb_header; + struct ls_ucode_img_desc *desc = &img->ucode_desc; + const struct acr_r352_ls_func *func = + acr->func->ls_func[img->falcon_id]; + + if (img->ucode_header) { + nvkm_fatal(acr->base.subdev, + "images withough loader are not supported yet!\n"); + return offset; + } + + /* Fill WPR header */ + whdr->falcon_id = img->falcon_id; + whdr->bootstrap_owner = acr->base.boot_falcon; + whdr->status = LSF_IMAGE_STATUS_COPY; + + /* Align, save off, and include an LSB header size */ + offset = ALIGN(offset, LSF_LSB_HEADER_ALIGN); + whdr->lsb_offset = offset; + offset += sizeof(struct lsf_lsb_header); + + /* + * Align, save off, and include the original (static) ucode + * image size + */ + offset = ALIGN(offset, LSF_UCODE_DATA_ALIGN); + lhdr->ucode_off = offset; + offset += img->ucode_size; + + /* + * For falcons that use a boot loader (BL), we append a loader + * desc structure on the end of the ucode image and consider + * this the boot loader data. The host will then copy the loader + * desc args to this space within the WPR region (before locking + * down) and the HS bin will then copy them to DMEM 0 for the + * loader. + */ + lhdr->bl_code_size = ALIGN(desc->bootloader_size, + LSF_BL_CODE_SIZE_ALIGN); + lhdr->ucode_size = ALIGN(desc->app_resident_data_offset, + LSF_BL_CODE_SIZE_ALIGN) + lhdr->bl_code_size; + lhdr->data_size = ALIGN(desc->app_size, LSF_BL_CODE_SIZE_ALIGN) + + lhdr->bl_code_size - lhdr->ucode_size; + /* + * Though the BL is located at 0th offset of the image, the VA + * is different to make sure that it doesn't collide the actual + * OS VA range + */ + lhdr->bl_imem_off = desc->bootloader_imem_offset; + lhdr->app_code_off = desc->app_start_offset + + desc->app_resident_code_offset; + lhdr->app_code_size = desc->app_resident_code_size; + lhdr->app_data_off = desc->app_start_offset + + desc->app_resident_data_offset; + lhdr->app_data_size = desc->app_resident_data_size; + + lhdr->flags = 0; + if (img->falcon_id == acr->base.boot_falcon) + lhdr->flags = LSF_FLAG_DMACTL_REQ_CTX; + + /* GPCCS will be loaded using PRI */ + if (img->falcon_id == NVKM_SECBOOT_FALCON_GPCCS) + lhdr->flags |= LSF_FLAG_FORCE_PRIV_LOAD; + + /* Align and save off BL descriptor size */ + lhdr->bl_data_size = ALIGN(func->bl_desc_size, LSF_BL_DATA_SIZE_ALIGN); + + /* + * Align, save off, and include the additional BL data + */ + offset = ALIGN(offset, LSF_BL_DATA_ALIGN); + lhdr->bl_data_off = offset; + offset += lhdr->bl_data_size; + + return offset; +} + +/** + * struct ls_ucode_mgr - manager for all LS falcon firmwares + * @count: number of managed LS falcons + * @wpr_size: size of the required WPR region in bytes + * @img_list: linked list of lsf_ucode_img + */ +struct ls_ucode_mgr { + u16 count; + u32 wpr_size; + struct list_head img_list; +}; + +static void +ls_ucode_mgr_init(struct ls_ucode_mgr *mgr) +{ + memset(mgr, 0, sizeof(*mgr)); + INIT_LIST_HEAD(&mgr->img_list); +} + +static void +ls_ucode_mgr_cleanup(struct ls_ucode_mgr *mgr) +{ + struct ls_ucode_img *img, *t; + + list_for_each_entry_safe(img, t, &mgr->img_list, node) { + kfree(img->ucode_data); + kfree(img->ucode_header); + kfree(img); + } +} + +static void +ls_ucode_mgr_add_img(struct ls_ucode_mgr *mgr, struct ls_ucode_img *img) +{ + mgr->count++; + list_add_tail(&img->node, &mgr->img_list); +} + +/** + * ls_ucode_mgr_fill_headers - fill WPR and LSB headers of all managed images + */ +static void +ls_ucode_mgr_fill_headers(struct acr_r352 *acr, struct ls_ucode_mgr *mgr) +{ + struct ls_ucode_img *img; + u32 offset; + + /* + * Start with an array of WPR headers at the base of the WPR. + * The expectation here is that the secure falcon will do a single DMA + * read of this array and cache it internally so it's ok to pack these. + * Also, we add 1 to the falcon count to indicate the end of the array. + */ + offset = sizeof(struct lsf_wpr_header) * (mgr->count + 1); + + /* + * Walk the managed falcons, accounting for the LSB structs + * as well as the ucode images. + */ + list_for_each_entry(img, &mgr->img_list, node) { + offset = ls_ucode_img_fill_headers(acr, img, offset); + } + + mgr->wpr_size = offset; +} + +/** + * ls_ucode_mgr_write_wpr - write the WPR blob contents + */ +static int +ls_ucode_mgr_write_wpr(struct acr_r352 *acr, struct ls_ucode_mgr *mgr, + struct nvkm_gpuobj *wpr_blob, u32 wpr_addr) +{ + struct ls_ucode_img *img; + u32 pos = 0; + + nvkm_kmap(wpr_blob); + + list_for_each_entry(img, &mgr->img_list, node) { + nvkm_gpuobj_memcpy_to(wpr_blob, pos, &img->wpr_header, + sizeof(img->wpr_header)); + + nvkm_gpuobj_memcpy_to(wpr_blob, img->wpr_header.lsb_offset, + &img->lsb_header, sizeof(img->lsb_header)); + + /* Generate and write BL descriptor */ + if (!img->ucode_header) { + const struct acr_r352_ls_func *ls_func = + acr->func->ls_func[img->falcon_id]; + u8 gdesc[ls_func->bl_desc_size]; + + ls_func->generate_bl_desc(&acr->base, img, wpr_addr, + gdesc); + + nvkm_gpuobj_memcpy_to(wpr_blob, + img->lsb_header.bl_data_off, + gdesc, ls_func->bl_desc_size); + } + + /* Copy ucode */ + nvkm_gpuobj_memcpy_to(wpr_blob, img->lsb_header.ucode_off, + img->ucode_data, img->ucode_size); + + pos += sizeof(img->wpr_header); + } + + nvkm_wo32(wpr_blob, pos, NVKM_SECBOOT_FALCON_INVALID); + + nvkm_done(wpr_blob); + + return 0; +} + +/* Both size and address of WPR need to be 128K-aligned */ +#define WPR_ALIGNMENT 0x20000 +/** + * acr_r352_prepare_ls_blob() - prepare the LS blob + * + * For each securely managed falcon, load the FW, signatures and bootloaders and + * prepare a ucode blob. Then, compute the offsets in the WPR region for each + * blob, and finally write the headers and ucode blobs into a GPU object that + * will be copied into the WPR region by the HS firmware. + */ +static int +acr_r352_prepare_ls_blob(struct acr_r352 *acr, u64 wpr_addr, u32 wpr_size) +{ + const struct nvkm_subdev *subdev = acr->base.subdev; + struct ls_ucode_mgr mgr; + unsigned long managed_falcons = acr->base.managed_falcons; + int falcon_id; + int ret; + + ls_ucode_mgr_init(&mgr); + + /* Load all LS blobs */ + for_each_set_bit(falcon_id, &managed_falcons, NVKM_SECBOOT_FALCON_END) { + struct ls_ucode_img *img; + + img = ls_ucode_img_load(subdev, + acr->func->ls_func[falcon_id]->load); + + if (IS_ERR(img)) { + ret = PTR_ERR(img); + goto cleanup; + } + ls_ucode_mgr_add_img(&mgr, img); + } + + /* + * Fill the WPR and LSF headers with the right offsets and compute + * required WPR size + */ + ls_ucode_mgr_fill_headers(acr, &mgr); + mgr.wpr_size = ALIGN(mgr.wpr_size, WPR_ALIGNMENT); + + /* Allocate GPU object that will contain the WPR region */ + ret = nvkm_gpuobj_new(subdev->device, mgr.wpr_size, WPR_ALIGNMENT, + false, NULL, &acr->ls_blob); + if (ret) + goto cleanup; + + nvkm_debug(subdev, "%d managed LS falcons, WPR size is %d bytes\n", + mgr.count, mgr.wpr_size); + + /* If WPR address and size are not fixed, set them to fit the LS blob */ + if (wpr_size == 0) { + wpr_addr = acr->ls_blob->addr; + wpr_size = mgr.wpr_size; + /* + * But if the WPR region is set by the bootloader, it is illegal for + * the HS blob to be larger than this region. + */ + } else if (mgr.wpr_size > wpr_size) { + nvkm_error(subdev, "WPR region too small for FW blob!\n"); + nvkm_error(subdev, "required: %dB\n", mgr.wpr_size); + nvkm_error(subdev, "available: %dB\n", wpr_size); + ret = -ENOSPC; + goto cleanup; + } + + /* Write LS blob */ + ret = ls_ucode_mgr_write_wpr(acr, &mgr, acr->ls_blob, wpr_addr); + if (ret) + nvkm_gpuobj_del(&acr->ls_blob); + +cleanup: + ls_ucode_mgr_cleanup(&mgr); + + return ret; +} + + + + +/** + * acr_r352_hsf_patch_signature() - patch HS blob with correct signature + */ +static void +acr_r352_hsf_patch_signature(struct nvkm_secboot *sb, void *acr_image) +{ + struct fw_bin_header *hsbin_hdr = acr_image; + struct hsf_fw_header *fw_hdr = acr_image + hsbin_hdr->header_offset; + void *hs_data = acr_image + hsbin_hdr->data_offset; + void *sig; + u32 sig_size; + + /* Falcon in debug or production mode? */ + if (sb->boot_falcon->debug) { + sig = acr_image + fw_hdr->sig_dbg_offset; + sig_size = fw_hdr->sig_dbg_size; + } else { + sig = acr_image + fw_hdr->sig_prod_offset; + sig_size = fw_hdr->sig_prod_size; + } + + /* Patch signature */ + memcpy(hs_data + fw_hdr->patch_loc, sig + fw_hdr->patch_sig, sig_size); +} + +static void +acr_r352_fixup_hs_desc(struct acr_r352 *acr, struct nvkm_secboot *sb, + struct hsflcn_acr_desc *desc) +{ + struct nvkm_gpuobj *ls_blob = acr->ls_blob; + + desc->ucode_blob_base = ls_blob->addr; + desc->ucode_blob_size = ls_blob->size; + + desc->wpr_offset = 0; + + /* WPR region information if WPR is not fixed */ + if (sb->wpr_size == 0) { + desc->wpr_region_id = 1; + desc->regions.no_regions = 1; + desc->regions.region_props[0].region_id = 1; + desc->regions.region_props[0].start_addr = ls_blob->addr >> 8; + desc->regions.region_props[0].end_addr = + (ls_blob->addr + ls_blob->size) >> 8; + } +} + +static void +acr_r352_generate_hs_bl_desc(const struct hsf_load_header *hdr, void *_bl_desc, + u64 offset) +{ + struct acr_r352_flcn_bl_desc *bl_desc = _bl_desc; + u64 addr_code, addr_data; + + memset(bl_desc, 0, sizeof(*bl_desc)); + addr_code = offset >> 8; + addr_data = (offset + hdr->data_dma_base) >> 8; + + bl_desc->ctx_dma = FALCON_DMAIDX_VIRT; + bl_desc->code_dma_base = lower_32_bits(addr_code); + bl_desc->non_sec_code_off = hdr->non_sec_code_off; + bl_desc->non_sec_code_size = hdr->non_sec_code_size; + bl_desc->sec_code_off = hdr->app[0].sec_code_off; + bl_desc->sec_code_size = hdr->app[0].sec_code_size; + bl_desc->code_entry_point = 0; + bl_desc->data_dma_base = lower_32_bits(addr_data); + bl_desc->data_size = hdr->data_size; +} + +/** + * acr_r352_prepare_hs_blob - load and prepare a HS blob and BL descriptor + * + * @sb secure boot instance to prepare for + * @fw name of the HS firmware to load + * @blob pointer to gpuobj that will be allocated to receive the HS FW payload + * @bl_desc pointer to the BL descriptor to write for this firmware + * @patch whether we should patch the HS descriptor (only for HS loaders) + */ +static int +acr_r352_prepare_hs_blob(struct acr_r352 *acr, struct nvkm_secboot *sb, + const char *fw, struct nvkm_gpuobj **blob, + struct hsf_load_header *load_header, bool patch) +{ + struct nvkm_subdev *subdev = &sb->subdev; + void *acr_image; + struct fw_bin_header *hsbin_hdr; + struct hsf_fw_header *fw_hdr; + struct hsf_load_header *load_hdr; + void *acr_data; + int ret; + + acr_image = nvkm_acr_load_firmware(subdev, fw, 0); + if (IS_ERR(acr_image)) + return PTR_ERR(acr_image); + + hsbin_hdr = acr_image; + fw_hdr = acr_image + hsbin_hdr->header_offset; + load_hdr = acr_image + fw_hdr->hdr_offset; + acr_data = acr_image + hsbin_hdr->data_offset; + + /* Patch signature */ + acr_r352_hsf_patch_signature(sb, acr_image); + + /* Patch descriptor with WPR information? */ + if (patch) { + struct hsflcn_acr_desc *desc; + + desc = acr_data + load_hdr->data_dma_base; + acr_r352_fixup_hs_desc(acr, sb, desc); + } + + if (load_hdr->num_apps > ACR_R352_MAX_APPS) { + nvkm_error(subdev, "more apps (%d) than supported (%d)!", + load_hdr->num_apps, ACR_R352_MAX_APPS); + ret = -EINVAL; + goto cleanup; + } + memcpy(load_header, load_hdr, sizeof(*load_header) + + (sizeof(load_hdr->app[0]) * load_hdr->num_apps)); + + /* Create ACR blob and copy HS data to it */ + ret = nvkm_gpuobj_new(subdev->device, ALIGN(hsbin_hdr->data_size, 256), + 0x1000, false, NULL, blob); + if (ret) + goto cleanup; + + nvkm_kmap(*blob); + nvkm_gpuobj_memcpy_to(*blob, 0, acr_data, hsbin_hdr->data_size); + nvkm_done(*blob); + +cleanup: + kfree(acr_image); + + 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; + + /* virtual start address for boot vector */ + acr->base.start_address = hsbl_desc->start_tag << 8; + + return 0; +} + +/** + * acr_r352_load_blobs - load blobs common to all ACR V1 versions. + * + * This includes the LS blob, HS ucode loading blob, and HS bootloader. + * + * The HS ucode unload blob is only used on dGPU if the WPR region is variable. + */ +int +acr_r352_load_blobs(struct acr_r352 *acr, struct nvkm_secboot *sb) +{ + int ret; + + /* Firmware already loaded? */ + if (acr->firmware_ok) + return 0; + + /* Load and prepare the managed falcon's firmwares */ + ret = acr_r352_prepare_ls_blob(acr, sb->wpr_addr, sb->wpr_size); + if (ret) + return ret; + + /* Load the HS firmware that will load the LS firmwares */ + if (!acr->load_blob) { + ret = acr_r352_prepare_hs_blob(acr, sb, "acr/ucode_load", + &acr->load_blob, + &acr->load_bl_header, true); + if (ret) + return ret; + } + + /* If the ACR region is dynamically programmed, we need an unload FW */ + if (sb->wpr_size == 0) { + ret = acr_r352_prepare_hs_blob(acr, sb, "acr/ucode_unload", + &acr->unload_blob, + &acr->unload_bl_header, false); + if (ret) + return ret; + } + + /* Load the HS firmware bootloader */ + if (!acr->hsbl_blob) { + ret = acr_r352_prepare_hsbl_blob(acr); + if (ret) + return ret; + } + + acr->firmware_ok = true; + nvkm_debug(&sb->subdev, "LS blob successfully created\n"); + + return 0; +} + +/** + * acr_r352_load() - prepare HS falcon to run the specified blob, mapped + * at GPU address offset. + */ +static int +acr_r352_load(struct nvkm_acr *_acr, struct nvkm_secboot *sb, + struct nvkm_gpuobj *blob, u64 offset) +{ + struct acr_r352 *acr = acr_r352(_acr); + struct nvkm_falcon *falcon = sb->boot_falcon; + 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; + 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; + } else if (blob == acr->unload_blob) { + load_hdr = &acr->unload_bl_header; + } else { + nvkm_error(_acr->subdev, "invalid secure boot blob!\n"); + return -EINVAL; + } + + /* + * Copy HS bootloader data + */ + nvkm_falcon_load_dmem(falcon, hsbl_data, 0x0, hsbl_desc->data_size, 0); + + /* Copy HS bootloader code to end of IMEM */ + nvkm_falcon_load_imem(falcon, hsbl_code, falcon->code.limit - code_size, + code_size, hsbl_desc->start_tag, 0, false); + + /* Generate the BL header */ + acr->func->generate_hs_bl_desc(load_hdr, bl_desc, offset); + + /* + * Copy HS BL header where the HS descriptor expects it to be + */ + nvkm_falcon_load_dmem(falcon, bl_desc, hsbl_desc->dmem_load_off, + bl_desc_size, 0); + + return 0; +} + +/* + * acr_r352_reset() - execute secure boot from the prepared state + * + * Load the HS bootloader and ask the falcon to run it. This will in turn + * load the HS firmware and run it, so once the falcon stops all the managed + * falcons should have their LS firmware loaded and be ready to run. + */ +static int +acr_r352_reset(struct nvkm_acr *_acr, struct nvkm_secboot *sb, + enum nvkm_secboot_falcon falcon) +{ + struct acr_r352 *acr = acr_r352(_acr); + int ret; + + /* Make sure all blobs are ready */ + ret = acr_r352_load_blobs(acr, sb); + if (ret) + return ret; + + /* + * Dummy GM200 implementation: perform secure boot each time we are + * called on FECS. Since only FECS and GPCCS are managed and started + * together, this ought to be safe. + * + * Once we have proper PMU firmware and support, this will be changed + * to a proper call to the PMU method. + */ + if (falcon != NVKM_SECBOOT_FALCON_FECS) + goto end; + + /* If WPR is set and we have an unload blob, run it to unlock WPR */ + if (acr->unload_blob && + acr->falcon_state[NVKM_SECBOOT_FALCON_FECS] != NON_SECURE) { + ret = sb->func->run_blob(sb, acr->unload_blob); + if (ret) + return ret; + } + + /* Reload all managed falcons */ + ret = sb->func->run_blob(sb, acr->load_blob); + if (ret) + return ret; + +end: + acr->falcon_state[falcon] = RESET; + return 0; +} + +static int +acr_r352_start(struct nvkm_acr *_acr, struct nvkm_secboot *sb, + enum nvkm_secboot_falcon falcon) +{ + struct acr_r352 *acr = acr_r352(_acr); + const struct nvkm_subdev *subdev = &sb->subdev; + int base; + + switch (falcon) { + case NVKM_SECBOOT_FALCON_FECS: + base = 0x409000; + break; + case NVKM_SECBOOT_FALCON_GPCCS: + base = 0x41a000; + break; + default: + nvkm_error(subdev, "cannot start unhandled falcon!\n"); + return -EINVAL; + } + + nvkm_wr32(subdev->device, base + 0x130, 0x00000002); + acr->falcon_state[falcon] = RUNNING; + + return 0; +} + +static int +acr_r352_fini(struct nvkm_acr *_acr, struct nvkm_secboot *sb, bool suspend) +{ + struct acr_r352 *acr = acr_r352(_acr); + int ret = 0; + int i; + + /* Run the unload blob to unprotect the WPR region */ + if (acr->unload_blob && + acr->falcon_state[NVKM_SECBOOT_FALCON_FECS] != NON_SECURE) + ret = sb->func->run_blob(sb, acr->unload_blob); + + for (i = 0; i < NVKM_SECBOOT_FALCON_END; i++) + acr->falcon_state[i] = NON_SECURE; + + return ret; +} + +static void +acr_r352_dtor(struct nvkm_acr *_acr) +{ + struct acr_r352 *acr = acr_r352(_acr); + + nvkm_gpuobj_del(&acr->unload_blob); + + kfree(acr->hsbl_blob); + nvkm_gpuobj_del(&acr->load_blob); + nvkm_gpuobj_del(&acr->ls_blob); + + kfree(acr); +} + +const struct acr_r352_ls_func +acr_r352_ls_fecs_func = { + .load = acr_ls_ucode_load_fecs, + .generate_bl_desc = acr_r352_generate_flcn_bl_desc, + .bl_desc_size = sizeof(struct acr_r352_flcn_bl_desc), +}; + +const struct acr_r352_ls_func +acr_r352_ls_gpccs_func = { + .load = acr_ls_ucode_load_gpccs, + .generate_bl_desc = acr_r352_generate_flcn_bl_desc, + .bl_desc_size = sizeof(struct acr_r352_flcn_bl_desc), +}; + +const struct acr_r352_func +acr_r352_func = { + .generate_hs_bl_desc = acr_r352_generate_hs_bl_desc, + .hs_bl_desc_size = sizeof(struct acr_r352_flcn_bl_desc), + .ls_func = { + [NVKM_SECBOOT_FALCON_FECS] = &acr_r352_ls_fecs_func, + [NVKM_SECBOOT_FALCON_GPCCS] = &acr_r352_ls_gpccs_func, + }, +}; + +static const struct nvkm_acr_func +acr_r352_base_func = { + .dtor = acr_r352_dtor, + .fini = acr_r352_fini, + .load = acr_r352_load, + .reset = acr_r352_reset, + .start = acr_r352_start, +}; + +struct nvkm_acr * +acr_r352_new_(const struct acr_r352_func *func, + enum nvkm_secboot_falcon boot_falcon, + unsigned long managed_falcons) +{ + struct acr_r352 *acr; + + acr = kzalloc(sizeof(*acr), GFP_KERNEL); + if (!acr) + return ERR_PTR(-ENOMEM); + + acr->base.boot_falcon = boot_falcon; + acr->base.managed_falcons = managed_falcons; + acr->base.func = &acr_r352_base_func; + acr->func = func; + + return &acr->base; +} + +struct nvkm_acr * +acr_r352_new(unsigned long managed_falcons) +{ + return acr_r352_new_(&acr_r352_func, NVKM_SECBOOT_FALCON_PMU, + managed_falcons); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h new file mode 100644 index 000000000000..031bd09fd50a --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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. + */ +#ifndef __NVKM_SECBOOT_ACR_R352_H__ +#define __NVKM_SECBOOT_ACR_R352_H__ + +#include "acr.h" + +struct ls_ucode_img; + +#define ACR_R352_MAX_APPS 8 + +struct hsf_load_header_app { + u32 sec_code_off; + u32 sec_code_size; +}; + +/** + * struct hsf_load_header - HS firmware load header + */ +struct hsf_load_header { + u32 non_sec_code_off; + u32 non_sec_code_size; + u32 data_dma_base; + u32 data_size; + u32 num_apps; + struct hsf_load_header_app app[0]; +}; + +/** + * struct acr_r352_ls_func - manages a single LS firmware + * + * @load: load the external firmware into a ls_ucode_img + * @generate_bl_desc: function called on a block of bl_desc_size to generate the + * proper bootloader descriptor for this LS firmware + * @bl_desc_size: size of the bootloader descriptor + */ +struct acr_r352_ls_func { + int (*load)(const struct nvkm_subdev *, struct ls_ucode_img *); + void (*generate_bl_desc)(const struct nvkm_acr *, + const struct ls_ucode_img *, u64, void *); + u32 bl_desc_size; +}; + +/** + * struct acr_r352_func - manages nuances between ACR versions + * + * @generate_hs_bl_desc: function called on a block of bl_desc_size to generate + * the proper HS bootloader descriptor + * @hs_bl_desc_size: size of the HS bootloader descriptor + */ +struct acr_r352_func { + void (*generate_hs_bl_desc)(const struct hsf_load_header *, void *, + u64); + u32 hs_bl_desc_size; + + const struct acr_r352_ls_func *ls_func[NVKM_SECBOOT_FALCON_END]; +}; + +/** + * struct acr_r352 - ACR data for driver release 352 (and beyond) + */ +struct acr_r352 { + struct nvkm_acr base; + const struct acr_r352_func *func; + + /* + * HS FW - lock WPR region (dGPU only) and load LS FWs + * on Tegra the HS FW copies the LS blob into the fixed WPR instead + */ + struct nvkm_gpuobj *load_blob; + struct { + struct hsf_load_header load_bl_header; + struct hsf_load_header_app __load_apps[ACR_R352_MAX_APPS]; + }; + + /* HS FW - unlock WPR region (dGPU only) */ + struct nvkm_gpuobj *unload_blob; + struct { + struct hsf_load_header unload_bl_header; + struct hsf_load_header_app __unload_apps[ACR_R352_MAX_APPS]; + }; + + /* HS bootloader */ + void *hsbl_blob; + + /* LS FWs, to be loaded by the HS ACR */ + struct nvkm_gpuobj *ls_blob; + + /* Firmware already loaded? */ + bool firmware_ok; + + /* To keep track of the state of all managed falcons */ + enum { + /* In non-secure state, no firmware loaded, no privileges*/ + NON_SECURE = 0, + /* In low-secure mode and ready to be started */ + RESET, + /* In low-secure mode and running */ + RUNNING, + } falcon_state[NVKM_SECBOOT_FALCON_END]; +}; +#define acr_r352(acr) container_of(acr, struct acr_r352, base) + +struct nvkm_acr *acr_r352_new_(const struct acr_r352_func *, + enum nvkm_secboot_falcon, unsigned long); + +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r361.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r361.c new file mode 100644 index 000000000000..ec1c5589ffce --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r361.c @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "acr_r352.h" +#include "ls_ucode.h" + +#include <engine/falcon.h> + +/** + * struct acr_r361_flcn_bl_desc - DMEM bootloader descriptor + * @signature: 16B signature for secure code. 0s if no secure code + * @ctx_dma: DMA context to be used by BL while loading code/data + * @code_dma_base: 256B-aligned Physical FB Address where code is located + * (falcon's $xcbase register) + * @non_sec_code_off: offset from code_dma_base where the non-secure code is + * located. The offset must be multiple of 256 to help perf + * @non_sec_code_size: the size of the nonSecure code part. + * @sec_code_off: offset from code_dma_base where the secure code is + * located. The offset must be multiple of 256 to help perf + * @sec_code_size: offset from code_dma_base where the secure code is + * located. The offset must be multiple of 256 to help perf + * @code_entry_point: code entry point which will be invoked by BL after + * code is loaded. + * @data_dma_base: 256B aligned Physical FB Address where data is located. + * (falcon's $xdbase register) + * @data_size: size of data block. Should be multiple of 256B + * + * Structure used by the bootloader to load the rest of the code. This has + * to be filled by host and copied into DMEM at offset provided in the + * hsflcn_bl_desc.bl_desc_dmem_load_off. + */ +struct acr_r361_flcn_bl_desc { + u32 reserved[4]; + u32 signature[4]; + u32 ctx_dma; + struct flcn_u64 code_dma_base; + u32 non_sec_code_off; + u32 non_sec_code_size; + u32 sec_code_off; + u32 sec_code_size; + u32 code_entry_point; + struct flcn_u64 data_dma_base; + u32 data_size; +}; + +static void +acr_r361_generate_flcn_bl_desc(const struct nvkm_acr *acr, + const struct ls_ucode_img *img, u64 wpr_addr, + void *_desc) +{ + struct acr_r361_flcn_bl_desc *desc = _desc; + const struct ls_ucode_img_desc *pdesc = &img->ucode_desc; + u64 base, addr_code, addr_data; + + base = wpr_addr + img->lsb_header.ucode_off + pdesc->app_start_offset; + addr_code = base + pdesc->app_resident_code_offset; + addr_data = base + pdesc->app_resident_data_offset; + + memset(desc, 0, sizeof(*desc)); + desc->ctx_dma = FALCON_DMAIDX_UCODE; + desc->code_dma_base = u64_to_flcn64(addr_code); + desc->non_sec_code_off = pdesc->app_resident_code_offset; + desc->non_sec_code_size = pdesc->app_resident_code_size; + desc->code_entry_point = pdesc->app_imem_entry; + desc->data_dma_base = u64_to_flcn64(addr_data); + desc->data_size = pdesc->app_resident_data_size; +} + +static void +acr_r361_generate_hs_bl_desc(const struct hsf_load_header *hdr, void *_bl_desc, + u64 offset) +{ + struct acr_r361_flcn_bl_desc *bl_desc = _bl_desc; + + memset(bl_desc, 0, sizeof(*bl_desc)); + bl_desc->ctx_dma = FALCON_DMAIDX_VIRT; + bl_desc->code_dma_base = u64_to_flcn64(offset); + bl_desc->non_sec_code_off = hdr->non_sec_code_off; + bl_desc->non_sec_code_size = hdr->non_sec_code_size; + bl_desc->sec_code_off = hdr->app[0].sec_code_off; + bl_desc->sec_code_size = hdr->app[0].sec_code_size; + bl_desc->code_entry_point = 0; + bl_desc->data_dma_base = u64_to_flcn64(offset + hdr->data_dma_base); + bl_desc->data_size = hdr->data_size; +} + +const struct acr_r352_ls_func +acr_r361_ls_fecs_func = { + .load = acr_ls_ucode_load_fecs, + .generate_bl_desc = acr_r361_generate_flcn_bl_desc, + .bl_desc_size = sizeof(struct acr_r361_flcn_bl_desc), +}; + +const struct acr_r352_ls_func +acr_r361_ls_gpccs_func = { + .load = acr_ls_ucode_load_gpccs, + .generate_bl_desc = acr_r361_generate_flcn_bl_desc, + .bl_desc_size = sizeof(struct acr_r361_flcn_bl_desc), +}; + +const struct acr_r352_func +acr_r361_func = { + .generate_hs_bl_desc = acr_r361_generate_hs_bl_desc, + .hs_bl_desc_size = sizeof(struct acr_r361_flcn_bl_desc), + .ls_func = { + [NVKM_SECBOOT_FALCON_FECS] = &acr_r361_ls_fecs_func, + [NVKM_SECBOOT_FALCON_GPCCS] = &acr_r361_ls_gpccs_func, + }, +}; + +struct nvkm_acr * +acr_r361_new(unsigned long managed_falcons) +{ + return acr_r352_new_(&acr_r361_func, NVKM_SECBOOT_FALCON_PMU, + managed_falcons); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/base.c index 525740edaf75..ad739c621526 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/base.c @@ -19,7 +19,70 @@ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ + +/* + * Secure boot is the process by which NVIDIA-signed firmware is loaded into + * some of the falcons of a GPU. For production devices this is the only way + * for the firmware to access useful (but sensitive) registers. + * + * A Falcon microprocessor supporting advanced security modes can run in one of + * three modes: + * + * - Non-secure (NS). In this mode, functionality is similar to Falcon + * architectures before security modes were introduced (pre-Maxwell), but + * capability is restricted. In particular, certain registers may be + * inaccessible for reads and/or writes, and physical memory access may be + * disabled (on certain Falcon instances). This is the only possible mode that + * can be used if you don't have microcode cryptographically signed by NVIDIA. + * + * - Heavy Secure (HS). In this mode, the microprocessor is a black box - it's + * not possible to read or write any Falcon internal state or Falcon registers + * from outside the Falcon (for example, from the host system). The only way + * to enable this mode is by loading microcode that has been signed by NVIDIA. + * (The loading process involves tagging the IMEM block as secure, writing the + * signature into a Falcon register, and starting execution. The hardware will + * validate the signature, and if valid, grant HS privileges.) + * + * - Light Secure (LS). In this mode, the microprocessor has more privileges + * than NS but fewer than HS. Some of the microprocessor state is visible to + * host software to ease debugging. The only way to enable this mode is by HS + * microcode enabling LS mode. Some privileges available to HS mode are not + * available here. LS mode is introduced in GM20x. + * + * Secure boot consists in temporarily switching a HS-capable falcon (typically + * PMU) into HS mode in order to validate the LS firmwares of managed falcons, + * load them, and switch managed falcons into LS mode. Once secure boot + * completes, no falcon remains in HS mode. + * + * Secure boot requires a write-protected memory region (WPR) which can only be + * written by the secure falcon. On dGPU, the driver sets up the WPR region in + * video memory. On Tegra, it is set up by the bootloader and its location and + * size written into memory controller registers. + * + * The secure boot process takes place as follows: + * + * 1) A LS blob is constructed that contains all the LS firmwares we want to + * load, along with their signatures and bootloaders. + * + * 2) A HS blob (also called ACR) is created that contains the signed HS + * firmware in charge of loading the LS firmwares into their respective + * falcons. + * + * 3) The HS blob is loaded (via its own bootloader) and executed on the + * HS-capable falcon. It authenticates itself, switches the secure falcon to + * HS mode and setup the WPR region around the LS blob (dGPU) or copies the + * LS blob into the WPR region (Tegra). + * + * 4) The LS blob is now secure from all external tampering. The HS falcon + * checks the signatures of the LS firmwares and, if valid, switches the + * managed falcons to LS mode and makes them ready to run the LS firmware. + * + * 5) The managed falcons remain in LS mode and can be started. + * + */ + #include "priv.h" +#include "acr.h" #include <subdev/mc.h> #include <subdev/timer.h> @@ -40,25 +103,24 @@ int nvkm_secboot_reset(struct nvkm_secboot *sb, enum nvkm_secboot_falcon falcon) { /* Unmanaged falcon? */ - if (!(BIT(falcon) & sb->func->managed_falcons)) { + if (!(BIT(falcon) & sb->acr->managed_falcons)) { nvkm_error(&sb->subdev, "cannot reset unmanaged falcon!\n"); return -EINVAL; } - return sb->func->reset(sb, falcon); + return sb->acr->func->reset(sb->acr, sb, falcon); } /** * nvkm_secboot_is_managed() - check whether a given falcon is securely-managed */ bool -nvkm_secboot_is_managed(struct nvkm_secboot *secboot, - enum nvkm_secboot_falcon fid) +nvkm_secboot_is_managed(struct nvkm_secboot *sb, enum nvkm_secboot_falcon fid) { - if (!secboot) + if (!sb) return false; - return secboot->func->managed_falcons & BIT(fid); + return sb->acr->managed_falcons & BIT(fid); } static int @@ -67,13 +129,13 @@ nvkm_secboot_oneinit(struct nvkm_subdev *subdev) struct nvkm_secboot *sb = nvkm_secboot(subdev); int ret = 0; - switch (sb->func->boot_falcon) { + switch (sb->acr->boot_falcon) { case NVKM_SECBOOT_FALCON_PMU: sb->boot_falcon = subdev->device->pmu->falcon; break; default: nvkm_error(subdev, "Unmanaged boot falcon %s!\n", - managed_falcons_names[sb->func->boot_falcon]); + managed_falcons_names[sb->acr->boot_falcon]); return -EINVAL; } @@ -121,7 +183,7 @@ nvkm_secboot = { }; int -nvkm_secboot_ctor(const struct nvkm_secboot_func *func, +nvkm_secboot_ctor(const struct nvkm_secboot_func *func, struct nvkm_acr *acr, struct nvkm_device *device, int index, struct nvkm_secboot *sb) { @@ -129,9 +191,11 @@ nvkm_secboot_ctor(const struct nvkm_secboot_func *func, nvkm_subdev_ctor(&nvkm_secboot, device, index, &sb->subdev); sb->func = func; + sb->acr = acr; + acr->subdev = &sb->subdev; nvkm_debug(&sb->subdev, "securely managed falcons:\n"); - for_each_set_bit(fid, &sb->func->managed_falcons, + for_each_set_bit(fid, &sb->acr->managed_falcons, NVKM_SECBOOT_FALCON_END) nvkm_debug(&sb->subdev, "- %s\n", managed_falcons_names[fid]); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c index fd8220326d55..f6a11e2a8434 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.c @@ -20,1045 +20,27 @@ * DEALINGS IN THE SOFTWARE. */ -/* - * Secure boot is the process by which NVIDIA-signed firmware is loaded into - * some of the falcons of a GPU. For production devices this is the only way - * for the firmware to access useful (but sensitive) registers. - * - * A Falcon microprocessor supporting advanced security modes can run in one of - * three modes: - * - * - Non-secure (NS). In this mode, functionality is similar to Falcon - * architectures before security modes were introduced (pre-Maxwell), but - * capability is restricted. In particular, certain registers may be - * inaccessible for reads and/or writes, and physical memory access may be - * disabled (on certain Falcon instances). This is the only possible mode that - * can be used if you don't have microcode cryptographically signed by NVIDIA. - * - * - Heavy Secure (HS). In this mode, the microprocessor is a black box - it's - * not possible to read or write any Falcon internal state or Falcon registers - * from outside the Falcon (for example, from the host system). The only way - * to enable this mode is by loading microcode that has been signed by NVIDIA. - * (The loading process involves tagging the IMEM block as secure, writing the - * signature into a Falcon register, and starting execution. The hardware will - * validate the signature, and if valid, grant HS privileges.) - * - * - Light Secure (LS). In this mode, the microprocessor has more privileges - * than NS but fewer than HS. Some of the microprocessor state is visible to - * host software to ease debugging. The only way to enable this mode is by HS - * microcode enabling LS mode. Some privileges available to HS mode are not - * available here. LS mode is introduced in GM20x. - * - * Secure boot consists in temporarily switching a HS-capable falcon (typically - * PMU) into HS mode in order to validate the LS firmwares of managed falcons, - * load them, and switch managed falcons into LS mode. Once secure boot - * completes, no falcon remains in HS mode. - * - * Secure boot requires a write-protected memory region (WPR) which can only be - * written by the secure falcon. On dGPU, the driver sets up the WPR region in - * video memory. On Tegra, it is set up by the bootloader and its location and - * size written into memory controller registers. - * - * The secure boot process takes place as follows: - * - * 1) A LS blob is constructed that contains all the LS firmwares we want to - * load, along with their signatures and bootloaders. - * - * 2) A HS blob (also called ACR) is created that contains the signed HS - * firmware in charge of loading the LS firmwares into their respective - * falcons. - * - * 3) The HS blob is loaded (via its own bootloader) and executed on the - * HS-capable falcon. It authenticates itself, switches the secure falcon to - * HS mode and setup the WPR region around the LS blob (dGPU) or copies the - * LS blob into the WPR region (Tegra). - * - * 4) The LS blob is now secure from all external tampering. The HS falcon - * checks the signatures of the LS firmwares and, if valid, switches the - * managed falcons to LS mode and makes them ready to run the LS firmware. - * - * 5) The managed falcons remain in LS mode and can be started. - * - */ -#include "priv.h" +#include "acr.h" +#include "gm200.h" #include <core/gpuobj.h> -#include <core/firmware.h> #include <subdev/fb.h> #include <engine/falcon.h> /** - * struct fw_bin_header - header of firmware files - * @bin_magic: always 0x3b1d14f0 - * @bin_ver: version of the bin format - * @bin_size: entire image size including this header - * @header_offset: offset of the firmware/bootloader header in the file - * @data_offset: offset of the firmware/bootloader payload in the file - * @data_size: size of the payload - * - * This header is located at the beginning of the HS firmware and HS bootloader - * files, to describe where the headers and data can be found. - */ -struct fw_bin_header { - u32 bin_magic; - u32 bin_ver; - u32 bin_size; - u32 header_offset; - u32 data_offset; - u32 data_size; -}; - -/** - * struct fw_bl_desc - firmware bootloader descriptor - * @start_tag: starting tag of bootloader - * @desc_dmem_load_off: DMEM offset of flcn_bl_dmem_desc - * @code_off: offset of code section - * @code_size: size of code section - * @data_off: offset of data section - * @data_size: size of data section - * - * This structure is embedded in bootloader firmware files at to describe the - * IMEM and DMEM layout expected by the bootloader. - */ -struct fw_bl_desc { - u32 start_tag; - u32 dmem_load_off; - u32 code_off; - u32 code_size; - u32 data_off; - u32 data_size; -}; - - -/** - * struct ls_ucode_mgr - manager for all LS falcon firmwares - * @count: number of managed LS falcons - * @wpr_size: size of the required WPR region in bytes - * @img_list: linked list of lsf_ucode_img - */ -struct ls_ucode_mgr { - u16 count; - u32 wpr_size; - struct list_head img_list; -}; - - -/* - * - * HS blob structures - * - */ - -/** - * struct hsf_fw_header - HS firmware descriptor - * @sig_dbg_offset: offset of the debug signature - * @sig_dbg_size: size of the debug signature - * @sig_prod_offset: offset of the production signature - * @sig_prod_size: size of the production signature - * @patch_loc: offset of the offset (sic) of where the signature is - * @patch_sig: offset of the offset (sic) to add to sig_*_offset - * @hdr_offset: offset of the load header (see struct hs_load_header) - * @hdr_size: size of above header - * - * This structure is embedded in the HS firmware image at - * hs_bin_hdr.header_offset. - */ -struct hsf_fw_header { - u32 sig_dbg_offset; - u32 sig_dbg_size; - u32 sig_prod_offset; - u32 sig_prod_size; - u32 patch_loc; - u32 patch_sig; - u32 hdr_offset; - u32 hdr_size; -}; - - -/** - * struct gm200_flcn_bl_desc - DMEM bootloader descriptor - * @signature: 16B signature for secure code. 0s if no secure code - * @ctx_dma: DMA context to be used by BL while loading code/data - * @code_dma_base: 256B-aligned Physical FB Address where code is located - * (falcon's $xcbase register) - * @non_sec_code_off: offset from code_dma_base where the non-secure code is - * located. The offset must be multiple of 256 to help perf - * @non_sec_code_size: the size of the nonSecure code part. - * @sec_code_off: offset from code_dma_base where the secure code is - * located. The offset must be multiple of 256 to help perf - * @sec_code_size: offset from code_dma_base where the secure code is - * located. The offset must be multiple of 256 to help perf - * @code_entry_point: code entry point which will be invoked by BL after - * code is loaded. - * @data_dma_base: 256B aligned Physical FB Address where data is located. - * (falcon's $xdbase register) - * @data_size: size of data block. Should be multiple of 256B - * - * Structure used by the bootloader to load the rest of the code. This has - * to be filled by host and copied into DMEM at offset provided in the - * hsflcn_bl_desc.bl_desc_dmem_load_off. - */ -struct gm200_flcn_bl_desc { - u32 reserved[4]; - u32 signature[4]; - u32 ctx_dma; - struct flcn_u64 code_dma_base; - u32 non_sec_code_off; - u32 non_sec_code_size; - u32 sec_code_off; - u32 sec_code_size; - u32 code_entry_point; - struct flcn_u64 data_dma_base; - u32 data_size; -}; - - -/** - * Convenience function to duplicate a firmware file in memory and check that - * it has the required minimum size. - */ -static void * -gm200_secboot_load_firmware(const struct nvkm_subdev *subdev, const char *name, - size_t min_size) -{ - const struct firmware *fw; - void *blob; - int ret; - - ret = nvkm_firmware_get(subdev->device, name, &fw); - if (ret) - return ERR_PTR(ret); - if (fw->size < min_size) { - nvkm_error(subdev, "%s is smaller than expected size %zu\n", - name, min_size); - nvkm_firmware_put(fw); - return ERR_PTR(-EINVAL); - } - blob = kmemdup(fw->data, fw->size, GFP_KERNEL); - nvkm_firmware_put(fw); - if (!blob) - return ERR_PTR(-ENOMEM); - - return blob; -} - - -/* - * Low-secure blob creation - */ - -#define BL_DESC_BLK_SIZE 256 -/** - * Build a ucode image and descriptor from provided bootloader, code and data. - * - * @bl: bootloader image, including 16-bytes descriptor - * @code: LS firmware code segment - * @data: LS firmware data segment - * @desc: ucode descriptor to be written - * - * Return: allocated ucode image with corresponding descriptor information. desc - * is also updated to contain the right offsets within returned image. - */ -static void * -ls_ucode_img_build(const struct firmware *bl, const struct firmware *code, - const struct firmware *data, struct ls_ucode_img_desc *desc) -{ - struct fw_bin_header *bin_hdr = (void *)bl->data; - struct fw_bl_desc *bl_desc = (void *)bl->data + bin_hdr->header_offset; - void *bl_data = (void *)bl->data + bin_hdr->data_offset; - u32 pos = 0; - void *image; - - desc->bootloader_start_offset = pos; - desc->bootloader_size = ALIGN(bl_desc->code_size, sizeof(u32)); - desc->bootloader_imem_offset = bl_desc->start_tag * 256; - desc->bootloader_entry_point = bl_desc->start_tag * 256; - - pos = ALIGN(pos + desc->bootloader_size, BL_DESC_BLK_SIZE); - desc->app_start_offset = pos; - desc->app_size = ALIGN(code->size, BL_DESC_BLK_SIZE) + - ALIGN(data->size, BL_DESC_BLK_SIZE); - desc->app_imem_offset = 0; - desc->app_imem_entry = 0; - desc->app_dmem_offset = 0; - desc->app_resident_code_offset = 0; - desc->app_resident_code_size = ALIGN(code->size, BL_DESC_BLK_SIZE); - - pos = ALIGN(pos + desc->app_resident_code_size, BL_DESC_BLK_SIZE); - desc->app_resident_data_offset = pos - desc->app_start_offset; - desc->app_resident_data_size = ALIGN(data->size, BL_DESC_BLK_SIZE); - - desc->image_size = ALIGN(bl_desc->code_size, BL_DESC_BLK_SIZE) + - desc->app_size; - - image = kzalloc(desc->image_size, GFP_KERNEL); - if (!image) - return ERR_PTR(-ENOMEM); - - memcpy(image + desc->bootloader_start_offset, bl_data, - bl_desc->code_size); - memcpy(image + desc->app_start_offset, code->data, code->size); - memcpy(image + desc->app_start_offset + desc->app_resident_data_offset, - data->data, data->size); - - return image; -} - -/** - * ls_ucode_img_load_generic() - load and prepare a LS ucode image - * - * Load the LS microcode, bootloader and signature and pack them into a single - * blob. Also generate the corresponding ucode descriptor. - */ -static int -ls_ucode_img_load_generic(const struct nvkm_subdev *subdev, - struct ls_ucode_img *img, const char *falcon_name, - const u32 falcon_id) -{ - const struct firmware *bl, *code, *data; - struct lsf_ucode_desc *lsf_desc; - char f[64]; - int ret; - - img->ucode_header = NULL; - - snprintf(f, sizeof(f), "gr/%s_bl", falcon_name); - ret = nvkm_firmware_get(subdev->device, f, &bl); - if (ret) - goto error; - - snprintf(f, sizeof(f), "gr/%s_inst", falcon_name); - ret = nvkm_firmware_get(subdev->device, f, &code); - if (ret) - goto free_bl; - - snprintf(f, sizeof(f), "gr/%s_data", falcon_name); - ret = nvkm_firmware_get(subdev->device, f, &data); - if (ret) - goto free_inst; - - img->ucode_data = ls_ucode_img_build(bl, code, data, - &img->ucode_desc); - if (IS_ERR(img->ucode_data)) { - ret = PTR_ERR(img->ucode_data); - goto free_data; - } - img->ucode_size = img->ucode_desc.image_size; - - snprintf(f, sizeof(f), "gr/%s_sig", falcon_name); - lsf_desc = gm200_secboot_load_firmware(subdev, f, sizeof(*lsf_desc)); - if (IS_ERR(lsf_desc)) { - ret = PTR_ERR(lsf_desc); - goto free_image; - } - /* not needed? the signature should already have the right value */ - lsf_desc->falcon_id = falcon_id; - memcpy(&img->lsb_header.signature, lsf_desc, sizeof(*lsf_desc)); - img->falcon_id = lsf_desc->falcon_id; - kfree(lsf_desc); - - /* success path - only free requested firmware files */ - goto free_data; - -free_image: - kfree(img->ucode_data); -free_data: - nvkm_firmware_put(data); -free_inst: - nvkm_firmware_put(code); -free_bl: - nvkm_firmware_put(bl); -error: - return ret; -} - -typedef int (*lsf_load_func)(const struct nvkm_subdev *, struct ls_ucode_img *); - -int -gm200_ls_load_fecs(const struct nvkm_subdev *subdev, struct ls_ucode_img *img) -{ - return ls_ucode_img_load_generic(subdev, img, "fecs", - NVKM_SECBOOT_FALCON_FECS); -} - -int -gm200_ls_load_gpccs(const struct nvkm_subdev *subdev, struct ls_ucode_img *img) -{ - return ls_ucode_img_load_generic(subdev, img, "gpccs", - NVKM_SECBOOT_FALCON_GPCCS); -} - -/** - * ls_ucode_img_load() - create a lsf_ucode_img and load it - */ -static struct ls_ucode_img * -ls_ucode_img_load(struct nvkm_subdev *subdev, lsf_load_func load_func) -{ - struct ls_ucode_img *img; - int ret; - - img = kzalloc(sizeof(*img), GFP_KERNEL); - if (!img) - return ERR_PTR(-ENOMEM); - - ret = load_func(subdev, img); - if (ret) { - kfree(img); - return ERR_PTR(ret); - } - - return img; -} - -/** - * gm200_secboot_ls_bl_desc() - populate a DMEM BL descriptor for LS image - * @img: ucode image to generate against - * @desc: descriptor to populate - * @sb: secure boot state to use for base addresses - * - * Populate the DMEM BL descriptor with the information contained in a - * ls_ucode_desc. - * - */ -static void -gm200_secboot_ls_bl_desc(const struct ls_ucode_img *img, u64 wpr_addr, - void *_desc) -{ - struct gm200_flcn_bl_desc *desc = _desc; - const struct ls_ucode_img_desc *pdesc = &img->ucode_desc; - u64 addr_base; - - addr_base = wpr_addr + img->lsb_header.ucode_off + - pdesc->app_start_offset; - - memset(desc, 0, sizeof(*desc)); - desc->ctx_dma = FALCON_DMAIDX_UCODE; - desc->code_dma_base.lo = lower_32_bits( - (addr_base + pdesc->app_resident_code_offset)); - desc->code_dma_base.hi = upper_32_bits( - (addr_base + pdesc->app_resident_code_offset)); - desc->non_sec_code_size = pdesc->app_resident_code_size; - desc->data_dma_base.lo = lower_32_bits( - (addr_base + pdesc->app_resident_data_offset)); - desc->data_dma_base.hi = upper_32_bits( - (addr_base + pdesc->app_resident_data_offset)); - desc->data_size = pdesc->app_resident_data_size; - desc->code_entry_point = pdesc->app_imem_entry; -} - -#define LSF_LSB_HEADER_ALIGN 256 -#define LSF_BL_DATA_ALIGN 256 -#define LSF_BL_DATA_SIZE_ALIGN 256 -#define LSF_BL_CODE_SIZE_ALIGN 256 -#define LSF_UCODE_DATA_ALIGN 4096 - -/** - * ls_ucode_img_fill_headers - fill the WPR and LSB headers of an image - * @gsb: secure boot device used - * @img: image to generate for - * @offset: offset in the WPR region where this image starts - * - * Allocate space in the WPR area from offset and write the WPR and LSB headers - * accordingly. - * - * Return: offset at the end of this image. - */ -static u32 -ls_ucode_img_fill_headers(struct gm200_secboot *gsb, struct ls_ucode_img *img, - u32 offset) -{ - struct lsf_wpr_header *whdr = &img->wpr_header; - struct lsf_lsb_header *lhdr = &img->lsb_header; - struct ls_ucode_img_desc *desc = &img->ucode_desc; - const struct secboot_ls_single_func *func = - (*gsb->ls_func)[img->falcon_id]; - - if (img->ucode_header) { - nvkm_fatal(&gsb->base.subdev, - "images withough loader are not supported yet!\n"); - return offset; - } - - /* Fill WPR header */ - whdr->falcon_id = img->falcon_id; - whdr->bootstrap_owner = gsb->base.func->boot_falcon; - whdr->status = LSF_IMAGE_STATUS_COPY; - - /* Align, save off, and include an LSB header size */ - offset = ALIGN(offset, LSF_LSB_HEADER_ALIGN); - whdr->lsb_offset = offset; - offset += sizeof(struct lsf_lsb_header); - - /* - * Align, save off, and include the original (static) ucode - * image size - */ - offset = ALIGN(offset, LSF_UCODE_DATA_ALIGN); - lhdr->ucode_off = offset; - offset += img->ucode_size; - - /* - * For falcons that use a boot loader (BL), we append a loader - * desc structure on the end of the ucode image and consider - * this the boot loader data. The host will then copy the loader - * desc args to this space within the WPR region (before locking - * down) and the HS bin will then copy them to DMEM 0 for the - * loader. - */ - lhdr->bl_code_size = ALIGN(desc->bootloader_size, - LSF_BL_CODE_SIZE_ALIGN); - lhdr->ucode_size = ALIGN(desc->app_resident_data_offset, - LSF_BL_CODE_SIZE_ALIGN) + lhdr->bl_code_size; - lhdr->data_size = ALIGN(desc->app_size, LSF_BL_CODE_SIZE_ALIGN) + - lhdr->bl_code_size - lhdr->ucode_size; - /* - * Though the BL is located at 0th offset of the image, the VA - * is different to make sure that it doesn't collide the actual - * OS VA range - */ - lhdr->bl_imem_off = desc->bootloader_imem_offset; - lhdr->app_code_off = desc->app_start_offset + - desc->app_resident_code_offset; - lhdr->app_code_size = desc->app_resident_code_size; - lhdr->app_data_off = desc->app_start_offset + - desc->app_resident_data_offset; - lhdr->app_data_size = desc->app_resident_data_size; - - lhdr->flags = 0; - if (img->falcon_id == gsb->base.func->boot_falcon) - lhdr->flags = LSF_FLAG_DMACTL_REQ_CTX; - - /* GPCCS will be loaded using PRI */ - if (img->falcon_id == NVKM_SECBOOT_FALCON_GPCCS) - lhdr->flags |= LSF_FLAG_FORCE_PRIV_LOAD; - - /* Align and save off BL descriptor size */ - lhdr->bl_data_size = ALIGN(func->bl_desc_size, LSF_BL_DATA_SIZE_ALIGN); - - /* - * Align, save off, and include the additional BL data - */ - offset = ALIGN(offset, LSF_BL_DATA_ALIGN); - lhdr->bl_data_off = offset; - offset += lhdr->bl_data_size; - - return offset; -} - -static void -ls_ucode_mgr_init(struct ls_ucode_mgr *mgr) -{ - memset(mgr, 0, sizeof(*mgr)); - INIT_LIST_HEAD(&mgr->img_list); -} - -static void -ls_ucode_mgr_cleanup(struct ls_ucode_mgr *mgr) -{ - struct ls_ucode_img *img, *t; - - list_for_each_entry_safe(img, t, &mgr->img_list, node) { - kfree(img->ucode_data); - kfree(img->ucode_header); - kfree(img); - } -} - -static void -ls_ucode_mgr_add_img(struct ls_ucode_mgr *mgr, struct ls_ucode_img *img) -{ - mgr->count++; - list_add_tail(&img->node, &mgr->img_list); -} - -/** - * ls_ucode_mgr_fill_headers - fill WPR and LSB headers of all managed images - */ -static void -ls_ucode_mgr_fill_headers(struct gm200_secboot *gsb, struct ls_ucode_mgr *mgr) -{ - struct ls_ucode_img *img; - u32 offset; - - /* - * Start with an array of WPR headers at the base of the WPR. - * The expectation here is that the secure falcon will do a single DMA - * read of this array and cache it internally so it's ok to pack these. - * Also, we add 1 to the falcon count to indicate the end of the array. - */ - offset = sizeof(struct lsf_wpr_header) * (mgr->count + 1); - - /* - * Walk the managed falcons, accounting for the LSB structs - * as well as the ucode images. - */ - list_for_each_entry(img, &mgr->img_list, node) { - offset = ls_ucode_img_fill_headers(gsb, img, offset); - } - - mgr->wpr_size = offset; -} - -/** - * ls_ucode_mgr_write_wpr - write the WPR blob contents - */ -static int -ls_ucode_mgr_write_wpr(struct gm200_secboot *gsb, struct ls_ucode_mgr *mgr, - struct nvkm_gpuobj *wpr_blob) -{ - struct ls_ucode_img *img; - u32 pos = 0; - - nvkm_kmap(wpr_blob); - - list_for_each_entry(img, &mgr->img_list, node) { - nvkm_gpuobj_memcpy_to(wpr_blob, pos, &img->wpr_header, - sizeof(img->wpr_header)); - - nvkm_gpuobj_memcpy_to(wpr_blob, img->wpr_header.lsb_offset, - &img->lsb_header, sizeof(img->lsb_header)); - - /* Generate and write BL descriptor */ - if (!img->ucode_header) { - const struct secboot_ls_single_func *ls_func = - (*gsb->ls_func)[img->falcon_id]; - u8 gdesc[ls_func->bl_desc_size]; - - ls_func->generate_bl_desc(img, gsb->acr_wpr_addr, - &gdesc); - - nvkm_gpuobj_memcpy_to(wpr_blob, - img->lsb_header.bl_data_off, - &gdesc, ls_func->bl_desc_size); - } - - /* Copy ucode */ - nvkm_gpuobj_memcpy_to(wpr_blob, img->lsb_header.ucode_off, - img->ucode_data, img->ucode_size); - - pos += sizeof(img->wpr_header); - } - - nvkm_wo32(wpr_blob, pos, NVKM_SECBOOT_FALCON_INVALID); - - nvkm_done(wpr_blob); - - return 0; -} - -/* Both size and address of WPR need to be 128K-aligned */ -#define WPR_ALIGNMENT 0x20000 -/** - * gm200_secboot_prepare_ls_blob() - prepare the LS blob - * - * For each securely managed falcon, load the FW, signatures and bootloaders and - * prepare a ucode blob. Then, compute the offsets in the WPR region for each - * blob, and finally write the headers and ucode blobs into a GPU object that - * will be copied into the WPR region by the HS firmware. - */ -static int -gm200_secboot_prepare_ls_blob(struct gm200_secboot *gsb) -{ - struct nvkm_secboot *sb = &gsb->base; - struct nvkm_device *device = sb->subdev.device; - struct ls_ucode_mgr mgr; - int falcon_id; - int ret; - - ls_ucode_mgr_init(&mgr); - - /* Load all LS blobs */ - for_each_set_bit(falcon_id, &sb->func->managed_falcons, - NVKM_SECBOOT_FALCON_END) { - struct ls_ucode_img *img; - - img = ls_ucode_img_load(&sb->subdev, - (*gsb->ls_func)[falcon_id]->load); - - if (IS_ERR(img)) { - ret = PTR_ERR(img); - goto cleanup; - } - ls_ucode_mgr_add_img(&mgr, img); - } - - /* - * Fill the WPR and LSF headers with the right offsets and compute - * required WPR size - */ - ls_ucode_mgr_fill_headers(gsb, &mgr); - mgr.wpr_size = ALIGN(mgr.wpr_size, WPR_ALIGNMENT); - - /* Allocate GPU object that will contain the WPR region */ - ret = nvkm_gpuobj_new(device, mgr.wpr_size, WPR_ALIGNMENT, false, NULL, - &gsb->ls_blob); - if (ret) - goto cleanup; - - nvkm_debug(&sb->subdev, "%d managed LS falcons, WPR size is %d bytes\n", - mgr.count, mgr.wpr_size); - - /* If WPR address and size are not fixed, set them to fit the LS blob */ - if (!gsb->wpr_size) { - gsb->acr_wpr_addr = gsb->ls_blob->addr; - gsb->acr_wpr_size = gsb->ls_blob->size; - } else { - gsb->acr_wpr_addr = gsb->wpr_addr; - gsb->acr_wpr_size = gsb->wpr_size; - } - - /* Write LS blob */ - ret = ls_ucode_mgr_write_wpr(gsb, &mgr, gsb->ls_blob); - if (ret) - nvkm_gpuobj_del(&gsb->ls_blob); - -cleanup: - ls_ucode_mgr_cleanup(&mgr); - - return ret; -} - -static const secboot_ls_func -gm200_ls_func = { - [NVKM_SECBOOT_FALCON_FECS] = &(struct secboot_ls_single_func) { - .load = gm200_ls_load_fecs, - .generate_bl_desc = gm200_secboot_ls_bl_desc, - .bl_desc_size = sizeof(struct gm200_flcn_bl_desc), - }, - [NVKM_SECBOOT_FALCON_GPCCS] = &(struct secboot_ls_single_func) { - .load = gm200_ls_load_gpccs, - .generate_bl_desc = gm200_secboot_ls_bl_desc, - .bl_desc_size = sizeof(struct gm200_flcn_bl_desc), - }, -}; - -/* - * High-secure blob creation - */ - -/** - * gm200_secboot_hsf_patch_signature() - patch HS blob with correct signature - */ -static void -gm200_secboot_hsf_patch_signature(struct gm200_secboot *gsb, void *acr_image) -{ - struct nvkm_secboot *sb = &gsb->base; - struct fw_bin_header *hsbin_hdr = acr_image; - struct hsf_fw_header *fw_hdr = acr_image + hsbin_hdr->header_offset; - void *hs_data = acr_image + hsbin_hdr->data_offset; - void *sig; - u32 sig_size; - - /* Falcon in debug or production mode? */ - if (sb->boot_falcon->debug) { - sig = acr_image + fw_hdr->sig_dbg_offset; - sig_size = fw_hdr->sig_dbg_size; - } else { - sig = acr_image + fw_hdr->sig_prod_offset; - sig_size = fw_hdr->sig_prod_size; - } - - /* Patch signature */ - memcpy(hs_data + fw_hdr->patch_loc, sig + fw_hdr->patch_sig, sig_size); -} - -/** - * struct hsflcn_acr_desc - data section of the HS firmware - * - * This header is to be copied at the beginning of DMEM by the HS bootloader. - * - * @signature: signature of ACR ucode - * @wpr_region_id: region ID holding the WPR header and its details - * @wpr_offset: offset from the WPR region holding the wpr header - * @regions: region descriptors - * @nonwpr_ucode_blob_size: size of LS blob - * @nonwpr_ucode_blob_start: FB location of LS blob is - */ -struct hsflcn_acr_desc { - union { - u8 reserved_dmem[0x200]; - u32 signatures[4]; - } ucode_reserved_space; - u32 wpr_region_id; - u32 wpr_offset; - u32 mmu_mem_range; -#define FLCN_ACR_MAX_REGIONS 2 - struct { - u32 no_regions; - struct { - u32 start_addr; - u32 end_addr; - u32 region_id; - u32 read_mask; - u32 write_mask; - u32 client_mask; - } region_props[FLCN_ACR_MAX_REGIONS]; - } regions; - u32 ucode_blob_size; - u64 ucode_blob_base __aligned(8); - struct { - u32 vpr_enabled; - u32 vpr_start; - u32 vpr_end; - u32 hdcp_policies; - } vpr_desc; -}; - -static void -gm200_secboot_fixup_hs_desc(struct gm200_secboot *gsb, - struct hsflcn_acr_desc *desc) -{ - desc->ucode_blob_base = gsb->ls_blob->addr; - desc->ucode_blob_size = gsb->ls_blob->size; - - desc->wpr_offset = 0; - - /* WPR region information if WPR is not fixed */ - if (gsb->wpr_size == 0) { - desc->wpr_region_id = 1; - desc->regions.no_regions = 1; - desc->regions.region_props[0].region_id = 1; - desc->regions.region_props[0].start_addr = - gsb->acr_wpr_addr >> 8; - desc->regions.region_props[0].end_addr = - (gsb->acr_wpr_addr + gsb->acr_wpr_size) >> 8; - } -} - -/** - * gm200_secboot_prepare_hs_blob - load and prepare a HS blob and BL descriptor - * - * @gsb secure boot instance to prepare for - * @fw name of the HS firmware to load - * @blob pointer to gpuobj that will be allocated to receive the HS FW payload - * @bl_desc pointer to the BL descriptor to write for this firmware - * @patch whether we should patch the HS descriptor (only for HS loaders) - */ -static int -gm200_secboot_prepare_hs_blob(struct gm200_secboot *gsb, const char *fw, - struct nvkm_gpuobj **blob, - struct hsf_load_header *load_header, bool patch) -{ - struct nvkm_subdev *subdev = &gsb->base.subdev; - void *acr_image; - struct fw_bin_header *hsbin_hdr; - struct hsf_fw_header *fw_hdr; - struct hsf_load_header *load_hdr; - void *acr_data; - int ret; - - acr_image = gm200_secboot_load_firmware(subdev, fw, 0); - if (IS_ERR(acr_image)) - return PTR_ERR(acr_image); - - hsbin_hdr = acr_image; - fw_hdr = acr_image + hsbin_hdr->header_offset; - load_hdr = acr_image + fw_hdr->hdr_offset; - acr_data = acr_image + hsbin_hdr->data_offset; - - /* Patch signature */ - gm200_secboot_hsf_patch_signature(gsb, acr_image); - - /* Patch descriptor with WPR information? */ - if (patch) { - struct hsflcn_acr_desc *desc; - - desc = acr_data + load_hdr->data_dma_base; - gm200_secboot_fixup_hs_desc(gsb, desc); - } - - if (load_hdr->num_apps > GM200_ACR_MAX_APPS) { - nvkm_error(subdev, "more apps (%d) than supported (%d)!", - load_hdr->num_apps, GM200_ACR_MAX_APPS); - ret = -EINVAL; - goto cleanup; - } - memcpy(load_header, load_hdr, sizeof(*load_header) + - (sizeof(load_hdr->app[0]) * load_hdr->num_apps)); - - /* Create ACR blob and copy HS data to it */ - ret = nvkm_gpuobj_new(subdev->device, ALIGN(hsbin_hdr->data_size, 256), - 0x1000, false, NULL, blob); - if (ret) - goto cleanup; - - nvkm_kmap(*blob); - nvkm_gpuobj_memcpy_to(*blob, 0, acr_data, hsbin_hdr->data_size); - nvkm_done(*blob); - -cleanup: - kfree(acr_image); - - return ret; -} - -/* - * High-secure bootloader blob creation - */ - -static int -gm200_secboot_prepare_hsbl_blob(struct gm200_secboot *gsb) -{ - struct nvkm_subdev *subdev = &gsb->base.subdev; - - gsb->hsbl_blob = gm200_secboot_load_firmware(subdev, "acr/bl", 0); - if (IS_ERR(gsb->hsbl_blob)) { - int ret = PTR_ERR(gsb->hsbl_blob); - - gsb->hsbl_blob = NULL; - return ret; - } - - return 0; -} - -/** - * gm20x_secboot_prepare_blobs - load blobs common to all GM20X GPUs. + * gm200_secboot_run_blob() - run the given high-secure blob * - * This includes the LS blob, HS ucode loading blob, and HS bootloader. - * - * The HS ucode unload blob is only used on dGPU. */ int -gm20x_secboot_prepare_blobs(struct gm200_secboot *gsb) -{ - int ret; - - /* Load and prepare the managed falcon's firmwares */ - if (!gsb->ls_blob) { - ret = gm200_secboot_prepare_ls_blob(gsb); - if (ret) - return ret; - } - - /* Load the HS firmware that will load the LS firmwares */ - if (!gsb->acr_load_blob) { - ret = gm200_secboot_prepare_hs_blob(gsb, "acr/ucode_load", - &gsb->acr_load_blob, - &gsb->load_bl_header, true); - if (ret) - return ret; - } - - /* Load the HS firmware bootloader */ - if (!gsb->hsbl_blob) { - ret = gm200_secboot_prepare_hsbl_blob(gsb); - if (ret) - return ret; - } - - return 0; -} - -static int -gm200_secboot_prepare_blobs(struct gm200_secboot *gsb) -{ - int ret; - - ret = gm20x_secboot_prepare_blobs(gsb); - if (ret) - return ret; - - /* dGPU only: load the HS firmware that unprotects the WPR region */ - if (!gsb->acr_unload_blob) { - ret = gm200_secboot_prepare_hs_blob(gsb, "acr/ucode_unload", - &gsb->acr_unload_blob, - &gsb->unload_bl_header, false); - if (ret) - return ret; - } - - return 0; -} - -static int -gm200_secboot_blobs_ready(struct gm200_secboot *gsb) -{ - struct nvkm_subdev *subdev = &gsb->base.subdev; - int ret; - - /* firmware already loaded, nothing to do... */ - if (gsb->firmware_ok) - return 0; - - ret = gsb->func->prepare_blobs(gsb); - if (ret) { - nvkm_error(subdev, "failed to load secure firmware\n"); - return ret; - } - - gsb->firmware_ok = true; - - return 0; -} - - -/* - * Secure Boot Execution - */ - -/** - * gm200_secboot_load_hs_bl() - load HS bootloader into DMEM and IMEM - */ -static void -gm200_secboot_load_hs_bl(struct gm200_secboot *gsb, struct nvkm_falcon *falcon, - void *data, u32 data_size) -{ - struct fw_bin_header *hdr = gsb->hsbl_blob; - struct fw_bl_desc *hsbl_desc = gsb->hsbl_blob + hdr->header_offset; - void *blob_data = gsb->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); - u32 tag; - - /* - * Copy HS bootloader data - */ - nvkm_falcon_load_dmem(falcon, hsbl_data, 0x0, hsbl_desc->data_size, 0); - - /* - * Copy HS bootloader interface structure where the HS descriptor - * expects it to be - */ - nvkm_falcon_load_dmem(falcon, data, hsbl_desc->dmem_load_off, data_size, - 0); - - /* Copy HS bootloader code to end of IMEM */ - tag = hsbl_desc->start_tag; - nvkm_falcon_load_imem(falcon, hsbl_code, falcon->code.limit - code_size, - code_size, tag, 0, false); -} - -/** - * gm200_secboot_run_hs_blob() - run the given high-secure blob - */ -static int -gm200_secboot_run_hs_blob(struct gm200_secboot *gsb, struct nvkm_gpuobj *blob) +gm200_secboot_run_blob(struct nvkm_secboot *sb, struct nvkm_gpuobj *blob) { + struct gm200_secboot *gsb = gm200_secboot(sb); struct nvkm_subdev *subdev = &gsb->base.subdev; - struct fw_bin_header *hdr = gsb->hsbl_blob; - struct fw_bl_desc *hsbl_desc = gsb->hsbl_blob + hdr->header_offset; struct nvkm_falcon *falcon = gsb->base.boot_falcon; - const u32 virt_addr = hsbl_desc->start_tag << 8; - const u32 bl_desc_size = gsb->func->bl_desc_size; - const struct hsf_load_header *load_hdr; - u8 bl_desc[bl_desc_size]; struct nvkm_vma vma; int ret; - /* Find the bootloader descriptor for our blob and copy it */ - if (blob == gsb->acr_load_blob) { - load_hdr = &gsb->load_bl_header; - - } else if (blob == gsb->acr_unload_blob) { - load_hdr = &gsb->unload_bl_header; - } else { - nvkm_error(&gsb->base.subdev, "invalid secure boot blob!\n"); - return -EINVAL; - } - ret = nvkm_falcon_get(falcon, subdev); if (ret) return ret; @@ -1070,9 +52,6 @@ gm200_secboot_run_hs_blob(struct gm200_secboot *gsb, struct nvkm_gpuobj *blob) return ret; } - /* Generate the BL header */ - gsb->func->generate_bl_desc(load_hdr, bl_desc, vma.offset); - /* Reset and set the falcon up */ ret = nvkm_falcon_reset(falcon); if (ret) @@ -1080,10 +59,12 @@ gm200_secboot_run_hs_blob(struct gm200_secboot *gsb, struct nvkm_gpuobj *blob) nvkm_falcon_bind_context(falcon, gsb->inst); /* Load the HS bootloader into the falcon's IMEM/DMEM */ - gm200_secboot_load_hs_bl(gsb, falcon, &bl_desc, bl_desc_size); + ret = sb->acr->func->load(sb->acr, &gsb->base, blob, vma.offset); + if (ret) + goto end; /* Start the HS bootloader */ - nvkm_falcon_set_start_addr(falcon, virt_addr); + nvkm_falcon_set_start_addr(falcon, sb->acr->start_address); nvkm_falcon_start(falcon); ret = nvkm_falcon_wait_for_halt(falcon, 100); if (ret) @@ -1105,53 +86,6 @@ end: return ret; } -/* - * gm200_secboot_reset() - execute secure boot from the prepared state - * - * Load the HS bootloader and ask the falcon to run it. This will in turn - * load the HS firmware and run it, so once the falcon stops all the managed - * falcons should have their LS firmware loaded and be ready to run. - */ -int -gm200_secboot_reset(struct nvkm_secboot *sb, enum nvkm_secboot_falcon falcon) -{ - struct gm200_secboot *gsb = gm200_secboot(sb); - int ret; - - /* Make sure all blobs are ready */ - ret = gm200_secboot_blobs_ready(gsb); - if (ret) - return ret; - - /* - * Dummy GM200 implementation: perform secure boot each time we are - * called on FECS. Since only FECS and GPCCS are managed and started - * together, this ought to be safe. - * - * Once we have proper PMU firmware and support, this will be changed - * to a proper call to the PMU method. - */ - if (falcon != NVKM_SECBOOT_FALCON_FECS) - goto end; - - /* If WPR is set and we have an unload blob, run it to unlock WPR */ - if (gsb->acr_unload_blob && - gsb->falcon_state[NVKM_SECBOOT_FALCON_FECS] != NON_SECURE) { - ret = gm200_secboot_run_hs_blob(gsb, gsb->acr_unload_blob); - if (ret) - return ret; - } - - /* Reload all managed falcons */ - ret = gm200_secboot_run_hs_blob(gsb, gsb->acr_load_blob); - if (ret) - return ret; - -end: - gsb->falcon_state[falcon] = RESET; - return 0; -} - int gm200_secboot_oneinit(struct nvkm_secboot *sb) { @@ -1188,23 +122,22 @@ gm200_secboot_oneinit(struct nvkm_secboot *sb) nvkm_wo32(gsb->inst, 0x20c, upper_32_bits(vm_area_len - 1)); nvkm_done(gsb->inst); + if (sb->acr->func->oneinit) { + ret = sb->acr->func->oneinit(sb->acr, sb); + if (ret) + return ret; + } + return 0; } -static int +int gm200_secboot_fini(struct nvkm_secboot *sb, bool suspend) { - struct gm200_secboot *gsb = gm200_secboot(sb); int ret = 0; - int i; - - /* Run the unload blob to unprotect the WPR region */ - if (gsb->acr_unload_blob && - gsb->falcon_state[NVKM_SECBOOT_FALCON_FECS] != NON_SECURE) - ret = gm200_secboot_run_hs_blob(gsb, gsb->acr_unload_blob); - for (i = 0; i < NVKM_SECBOOT_FALCON_END; i++) - gsb->falcon_state[i] = NON_SECURE; + if (sb->acr->func->fini) + ret = sb->acr->func->fini(sb->acr, sb, suspend); return ret; } @@ -1214,11 +147,7 @@ gm200_secboot_dtor(struct nvkm_secboot *sb) { struct gm200_secboot *gsb = gm200_secboot(sb); - nvkm_gpuobj_del(&gsb->acr_unload_blob); - - kfree(gsb->hsbl_blob); - nvkm_gpuobj_del(&gsb->acr_load_blob); - nvkm_gpuobj_del(&gsb->ls_blob); + sb->acr->func->dtor(sb->acr); nvkm_vm_ref(NULL, &gsb->vm, gsb->pgd); nvkm_gpuobj_del(&gsb->pgd); @@ -1233,36 +162,7 @@ gm200_secboot = { .dtor = gm200_secboot_dtor, .oneinit = gm200_secboot_oneinit, .fini = gm200_secboot_fini, - .reset = gm200_secboot_reset, - .managed_falcons = BIT(NVKM_SECBOOT_FALCON_FECS) | - BIT(NVKM_SECBOOT_FALCON_GPCCS), - .boot_falcon = NVKM_SECBOOT_FALCON_PMU, -}; - -static void -gm200_secboot_generate_bl_desc(const struct hsf_load_header *hdr, - void *_bl_desc, u64 offset) -{ - struct gm200_flcn_bl_desc *bl_desc = _bl_desc; - - memset(bl_desc, 0, sizeof(*bl_desc)); - bl_desc->ctx_dma = FALCON_DMAIDX_VIRT; - bl_desc->non_sec_code_off = hdr->non_sec_code_off; - bl_desc->non_sec_code_size = hdr->non_sec_code_size; - bl_desc->sec_code_off = hdr->app[0].sec_code_off; - bl_desc->sec_code_size = hdr->app[0].sec_code_size; - bl_desc->code_entry_point = 0; - - bl_desc->code_dma_base = u64_to_flcn64(offset); - bl_desc->data_dma_base = u64_to_flcn64(offset + hdr->data_dma_base); - bl_desc->data_size = hdr->data_size; -} - -static const struct gm200_secboot_func -gm200_secboot_func = { - .bl_desc_size = sizeof(struct gm200_flcn_bl_desc), - .generate_bl_desc = gm200_secboot_generate_bl_desc, - .prepare_blobs = gm200_secboot_prepare_blobs, + .run_blob = gm200_secboot_run_blob, }; int @@ -1271,6 +171,12 @@ gm200_secboot_new(struct nvkm_device *device, int index, { int ret; struct gm200_secboot *gsb; + struct nvkm_acr *acr; + + acr = acr_r361_new(BIT(NVKM_SECBOOT_FALCON_FECS) | + BIT(NVKM_SECBOOT_FALCON_GPCCS)); + if (IS_ERR(acr)) + return PTR_ERR(acr); gsb = kzalloc(sizeof(*gsb), GFP_KERNEL); if (!gsb) { @@ -1279,16 +185,14 @@ gm200_secboot_new(struct nvkm_device *device, int index, } *psb = &gsb->base; - ret = nvkm_secboot_ctor(&gm200_secboot, device, index, &gsb->base); + ret = nvkm_secboot_ctor(&gm200_secboot, acr, device, index, &gsb->base); if (ret) return ret; - gsb->func = &gm200_secboot_func; - gsb->ls_func = &gm200_ls_func; - return 0; } + MODULE_FIRMWARE("nvidia/gm200/acr/bl.bin"); MODULE_FIRMWARE("nvidia/gm200/acr/ucode_load.bin"); MODULE_FIRMWARE("nvidia/gm200/acr/ucode_unload.bin"); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.h new file mode 100644 index 000000000000..45adf1a3bc20 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm200.h @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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. + */ + +#ifndef __NVKM_SECBOOT_GM200_H__ +#define __NVKM_SECBOOT_GM200_H__ + +#include "priv.h" + +struct gm200_secboot { + struct nvkm_secboot base; + + /* Instance block & address space used for HS FW execution */ + struct nvkm_gpuobj *inst; + struct nvkm_gpuobj *pgd; + struct nvkm_vm *vm; +}; +#define gm200_secboot(sb) container_of(sb, struct gm200_secboot, base) + +int gm200_secboot_oneinit(struct nvkm_secboot *); +int gm200_secboot_fini(struct nvkm_secboot *, bool); +void *gm200_secboot_dtor(struct nvkm_secboot *); +int gm200_secboot_run_blob(struct nvkm_secboot *, struct nvkm_gpuobj *); + +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c index 94d6c4405785..6707b8edc086 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c @@ -20,99 +20,8 @@ * DEALINGS IN THE SOFTWARE. */ -#include "priv.h" - -#include <core/gpuobj.h> -#include <engine/falcon.h> - -/* - * The BL header format used by GM20B's firmware is slightly different - * from the one of GM200. Fix the differences here. - */ -struct gm20b_flcn_bl_desc { - u32 reserved[4]; - u32 signature[4]; - u32 ctx_dma; - u32 code_dma_base; - u32 non_sec_code_off; - u32 non_sec_code_size; - u32 sec_code_off; - u32 sec_code_size; - u32 code_entry_point; - u32 data_dma_base; - u32 data_size; -}; - -static void -gm20b_secboot_ls_bl_desc(const struct ls_ucode_img *img, u64 wpr_addr, - void *_desc) -{ - struct gm20b_flcn_bl_desc *desc = _desc; - const struct ls_ucode_img_desc *pdesc = &img->ucode_desc; - u64 base; - - base = wpr_addr + img->lsb_header.ucode_off + pdesc->app_start_offset; - - memset(desc, 0, sizeof(*desc)); - desc->ctx_dma = FALCON_DMAIDX_UCODE; - desc->code_dma_base = (base + pdesc->app_resident_code_offset) >> 8; - desc->non_sec_code_size = pdesc->app_resident_code_size; - desc->data_dma_base = (base + pdesc->app_resident_data_offset) >> 8; - desc->data_size = pdesc->app_resident_data_size; - desc->code_entry_point = pdesc->app_imem_entry; -} - -static int -gm20b_secboot_prepare_blobs(struct gm200_secboot *gsb) -{ - struct nvkm_subdev *subdev = &gsb->base.subdev; - int acr_size; - int ret; - - ret = gm20x_secboot_prepare_blobs(gsb); - if (ret) - return ret; - - acr_size = gsb->acr_load_blob->size; - /* - * On Tegra the WPR region is set by the bootloader. It is illegal for - * the HS blob to be larger than this region. - */ - if (acr_size > gsb->wpr_size) { - nvkm_error(subdev, "WPR region too small for FW blob!\n"); - nvkm_error(subdev, "required: %dB\n", acr_size); - nvkm_error(subdev, "WPR size: %dB\n", gsb->wpr_size); - return -ENOSPC; - } - - return 0; -} - -static void -gm20b_secboot_generate_bl_desc(const struct hsf_load_header *load_hdr, - void *_bl_desc, u64 offset) -{ - struct gm20b_flcn_bl_desc *bl_desc = _bl_desc; - - memset(bl_desc, 0, sizeof(*bl_desc)); - bl_desc->ctx_dma = FALCON_DMAIDX_VIRT; - bl_desc->non_sec_code_off = load_hdr->non_sec_code_off; - bl_desc->non_sec_code_size = load_hdr->non_sec_code_size; - bl_desc->sec_code_off = load_hdr->app[0].sec_code_off; - bl_desc->sec_code_size = load_hdr->app[0].sec_code_size; - bl_desc->code_entry_point = 0; - bl_desc->code_dma_base = offset >> 8; - bl_desc->data_dma_base = (offset + load_hdr->data_dma_base) >> 8; - bl_desc->data_size = load_hdr->data_size; -} - -static const struct gm200_secboot_func -gm20b_secboot_func = { - .bl_desc_size = sizeof(struct gm20b_flcn_bl_desc), - .generate_bl_desc = gm20b_secboot_generate_bl_desc, - .prepare_blobs = gm20b_secboot_prepare_blobs, -}; - +#include "acr.h" +#include "gm200.h" #ifdef CONFIG_ARCH_TEGRA #define TEGRA_MC_BASE 0x70019000 @@ -140,15 +49,15 @@ gm20b_tegra_read_wpr(struct gm200_secboot *gsb) nvkm_error(&sb->subdev, "Cannot map Tegra MC registers\n"); return PTR_ERR(mc); } - gsb->wpr_addr = ioread32_native(mc + MC_SECURITY_CARVEOUT2_BOM_0) | + sb->wpr_addr = ioread32_native(mc + MC_SECURITY_CARVEOUT2_BOM_0) | ((u64)ioread32_native(mc + MC_SECURITY_CARVEOUT2_BOM_HI_0) << 32); - gsb->wpr_size = ioread32_native(mc + MC_SECURITY_CARVEOUT2_SIZE_128K) + sb->wpr_size = ioread32_native(mc + MC_SECURITY_CARVEOUT2_SIZE_128K) << 17; cfg = ioread32_native(mc + MC_SECURITY_CARVEOUT2_CFG0); iounmap(mc); /* Check that WPR settings are valid */ - if (gsb->wpr_size == 0) { + if (sb->wpr_size == 0) { nvkm_error(&sb->subdev, "WPR region is empty\n"); return -EINVAL; } @@ -186,18 +95,8 @@ static const struct nvkm_secboot_func gm20b_secboot = { .dtor = gm200_secboot_dtor, .oneinit = gm20b_secboot_oneinit, - .reset = gm200_secboot_reset, - .managed_falcons = BIT(NVKM_SECBOOT_FALCON_FECS), - .boot_falcon = NVKM_SECBOOT_FALCON_PMU, -}; - -static const secboot_ls_func -gm20b_ls_func = { - [NVKM_SECBOOT_FALCON_FECS] = &(struct secboot_ls_single_func) { - .load = gm200_ls_load_fecs, - .generate_bl_desc = gm20b_secboot_ls_bl_desc, - .bl_desc_size = sizeof(struct gm20b_flcn_bl_desc), - }, + .fini = gm200_secboot_fini, + .run_blob = gm200_secboot_run_blob, }; int @@ -206,6 +105,11 @@ gm20b_secboot_new(struct nvkm_device *device, int index, { int ret; struct gm200_secboot *gsb; + struct nvkm_acr *acr; + + acr = acr_r352_new(BIT(NVKM_SECBOOT_FALCON_FECS)); + if (IS_ERR(acr)) + return PTR_ERR(acr); gsb = kzalloc(sizeof(*gsb), GFP_KERNEL); if (!gsb) { @@ -214,13 +118,10 @@ gm20b_secboot_new(struct nvkm_device *device, int index, } *psb = &gsb->base; - ret = nvkm_secboot_ctor(&gm20b_secboot, device, index, &gsb->base); + ret = nvkm_secboot_ctor(&gm20b_secboot, acr, device, index, &gsb->base); if (ret) return ret; - gsb->func = &gm20b_secboot_func; - gsb->ls_func = &gm20b_ls_func; - return 0; } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode.h new file mode 100644 index 000000000000..3598ed597c13 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode.h @@ -0,0 +1,245 @@ +/* + * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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. + */ + +#ifndef __NVKM_SECBOOT_LS_UCODE_H__ +#define __NVKM_SECBOOT_LS_UCODE_H__ + +#include <core/os.h> +#include <core/subdev.h> +#include <subdev/secboot.h> + +/* + * + * LS blob structures + * + */ + +/** + * struct lsf_ucode_desc - LS falcon signatures + * @prd_keys: signature to use when the GPU is in production mode + * @dgb_keys: signature to use when the GPU is in debug mode + * @b_prd_present: whether the production key is present + * @b_dgb_present: whether the debug key is present + * @falcon_id: ID of the falcon the ucode applies to + * + * Directly loaded from a signature file. + */ +struct lsf_ucode_desc { + u8 prd_keys[2][16]; + u8 dbg_keys[2][16]; + u32 b_prd_present; + u32 b_dbg_present; + u32 falcon_id; +}; + +/** + * struct lsf_lsb_header - LS firmware header + * @signature: signature to verify the firmware against + * @ucode_off: offset of the ucode blob in the WPR region. The ucode + * blob contains the bootloader, code and data of the + * LS falcon + * @ucode_size: size of the ucode blob, including bootloader + * @data_size: size of the ucode blob data + * @bl_code_size: size of the bootloader code + * @bl_imem_off: offset in imem of the bootloader + * @bl_data_off: offset of the bootloader data in WPR region + * @bl_data_size: size of the bootloader data + * @app_code_off: offset of the app code relative to ucode_off + * @app_code_size: size of the app code + * @app_data_off: offset of the app data relative to ucode_off + * @app_data_size: size of the app data + * @flags: flags for the secure bootloader + * + * This structure is written into the WPR region for each managed falcon. Each + * instance is referenced by the lsb_offset member of the corresponding + * lsf_wpr_header. + */ +struct lsf_lsb_header { + struct lsf_ucode_desc signature; + u32 ucode_off; + u32 ucode_size; + u32 data_size; + u32 bl_code_size; + u32 bl_imem_off; + u32 bl_data_off; + u32 bl_data_size; + u32 app_code_off; + u32 app_code_size; + u32 app_data_off; + u32 app_data_size; + u32 flags; +#define LSF_FLAG_LOAD_CODE_AT_0 1 +#define LSF_FLAG_DMACTL_REQ_CTX 4 +#define LSF_FLAG_FORCE_PRIV_LOAD 8 +}; + +/** + * struct lsf_wpr_header - LS blob WPR Header + * @falcon_id: LS falcon ID + * @lsb_offset: offset of the lsb_lsf_header in the WPR region + * @bootstrap_owner: secure falcon reponsible for bootstrapping the LS falcon + * @lazy_bootstrap: skip bootstrapping by ACR + * @status: bootstrapping status + * + * An array of these is written at the beginning of the WPR region, one for + * each managed falcon. The array is terminated by an instance which falcon_id + * is LSF_FALCON_ID_INVALID. + */ +struct lsf_wpr_header { + u32 falcon_id; + u32 lsb_offset; + u32 bootstrap_owner; + u32 lazy_bootstrap; + u32 status; +#define LSF_IMAGE_STATUS_NONE 0 +#define LSF_IMAGE_STATUS_COPY 1 +#define LSF_IMAGE_STATUS_VALIDATION_CODE_FAILED 2 +#define LSF_IMAGE_STATUS_VALIDATION_DATA_FAILED 3 +#define LSF_IMAGE_STATUS_VALIDATION_DONE 4 +#define LSF_IMAGE_STATUS_VALIDATION_SKIPPED 5 +#define LSF_IMAGE_STATUS_BOOTSTRAP_READY 6 +}; + + +/** + * struct ls_ucode_img_desc - descriptor of firmware image + * @descriptor_size: size of this descriptor + * @image_size: size of the whole image + * @bootloader_start_offset: start offset of the bootloader in ucode image + * @bootloader_size: size of the bootloader + * @bootloader_imem_offset: start off set of the bootloader in IMEM + * @bootloader_entry_point: entry point of the bootloader in IMEM + * @app_start_offset: start offset of the LS firmware + * @app_size: size of the LS firmware's code and data + * @app_imem_offset: offset of the app in IMEM + * @app_imem_entry: entry point of the app in IMEM + * @app_dmem_offset: offset of the data in DMEM + * @app_resident_code_offset: offset of app code from app_start_offset + * @app_resident_code_size: size of the code + * @app_resident_data_offset: offset of data from app_start_offset + * @app_resident_data_size: size of data + * + * A firmware image contains the code, data, and bootloader of a given LS + * falcon in a single blob. This structure describes where everything is. + * + * This can be generated from a (bootloader, code, data) set if they have + * been loaded separately, or come directly from a file. + */ +struct ls_ucode_img_desc { + u32 descriptor_size; + u32 image_size; + u32 tools_version; + u32 app_version; + char date[64]; + u32 bootloader_start_offset; + u32 bootloader_size; + u32 bootloader_imem_offset; + u32 bootloader_entry_point; + u32 app_start_offset; + u32 app_size; + u32 app_imem_offset; + u32 app_imem_entry; + u32 app_dmem_offset; + u32 app_resident_code_offset; + u32 app_resident_code_size; + u32 app_resident_data_offset; + u32 app_resident_data_size; + u32 nb_overlays; + struct {u32 start; u32 size; } load_ovl[64]; + u32 compressed; +}; + +/** + * struct ls_ucode_img - temporary storage for loaded LS firmwares + * @node: to link within lsf_ucode_mgr + * @falcon_id: ID of the falcon this LS firmware is for + * @ucode_desc: loaded or generated map of ucode_data + * @ucode_header: header of the firmware + * @ucode_data: firmware payload (code and data) + * @ucode_size: size in bytes of data in ucode_data + * @wpr_header: WPR header to be written to the LS blob + * @lsb_header: LSB header to be written to the LS blob + * + * Preparing the WPR LS blob requires information about all the LS firmwares + * (size, etc) to be known. This structure contains all the data of one LS + * firmware. + */ +struct ls_ucode_img { + struct list_head node; + enum nvkm_secboot_falcon falcon_id; + + struct ls_ucode_img_desc ucode_desc; + u32 *ucode_header; + u8 *ucode_data; + u32 ucode_size; + + struct lsf_wpr_header wpr_header; + struct lsf_lsb_header lsb_header; +}; + +/** + * struct fw_bin_header - header of firmware files + * @bin_magic: always 0x3b1d14f0 + * @bin_ver: version of the bin format + * @bin_size: entire image size including this header + * @header_offset: offset of the firmware/bootloader header in the file + * @data_offset: offset of the firmware/bootloader payload in the file + * @data_size: size of the payload + * + * This header is located at the beginning of the HS firmware and HS bootloader + * files, to describe where the headers and data can be found. + */ +struct fw_bin_header { + u32 bin_magic; + u32 bin_ver; + u32 bin_size; + u32 header_offset; + u32 data_offset; + u32 data_size; +}; + +/** + * struct fw_bl_desc - firmware bootloader descriptor + * @start_tag: starting tag of bootloader + * @desc_dmem_load_off: DMEM offset of flcn_bl_dmem_desc + * @code_off: offset of code section + * @code_size: size of code section + * @data_off: offset of data section + * @data_size: size of data section + * + * This structure is embedded in bootloader firmware files at to describe the + * IMEM and DMEM layout expected by the bootloader. + */ +struct fw_bl_desc { + u32 start_tag; + u32 dmem_load_off; + u32 code_off; + u32 code_size; + u32 data_off; + u32 data_size; +}; + +int acr_ls_ucode_load_fecs(const struct nvkm_subdev *, struct ls_ucode_img *); +int acr_ls_ucode_load_gpccs(const struct nvkm_subdev *, struct ls_ucode_img *); + + +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_gr.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_gr.c new file mode 100644 index 000000000000..f9c0c6438027 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_gr.c @@ -0,0 +1,167 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "ls_ucode.h" +#include "acr.h" + +#include <core/firmware.h> + +#define BL_DESC_BLK_SIZE 256 +/** + * Build a ucode image and descriptor from provided bootloader, code and data. + * + * @bl: bootloader image, including 16-bytes descriptor + * @code: LS firmware code segment + * @data: LS firmware data segment + * @desc: ucode descriptor to be written + * + * Return: allocated ucode image with corresponding descriptor information. desc + * is also updated to contain the right offsets within returned image. + */ +static void * +ls_ucode_img_build(const struct firmware *bl, const struct firmware *code, + const struct firmware *data, struct ls_ucode_img_desc *desc) +{ + struct fw_bin_header *bin_hdr = (void *)bl->data; + struct fw_bl_desc *bl_desc = (void *)bl->data + bin_hdr->header_offset; + void *bl_data = (void *)bl->data + bin_hdr->data_offset; + u32 pos = 0; + void *image; + + desc->bootloader_start_offset = pos; + desc->bootloader_size = ALIGN(bl_desc->code_size, sizeof(u32)); + desc->bootloader_imem_offset = bl_desc->start_tag * 256; + desc->bootloader_entry_point = bl_desc->start_tag * 256; + + pos = ALIGN(pos + desc->bootloader_size, BL_DESC_BLK_SIZE); + desc->app_start_offset = pos; + desc->app_size = ALIGN(code->size, BL_DESC_BLK_SIZE) + + ALIGN(data->size, BL_DESC_BLK_SIZE); + desc->app_imem_offset = 0; + desc->app_imem_entry = 0; + desc->app_dmem_offset = 0; + desc->app_resident_code_offset = 0; + desc->app_resident_code_size = ALIGN(code->size, BL_DESC_BLK_SIZE); + + pos = ALIGN(pos + desc->app_resident_code_size, BL_DESC_BLK_SIZE); + desc->app_resident_data_offset = pos - desc->app_start_offset; + desc->app_resident_data_size = ALIGN(data->size, BL_DESC_BLK_SIZE); + + desc->image_size = ALIGN(bl_desc->code_size, BL_DESC_BLK_SIZE) + + desc->app_size; + + image = kzalloc(desc->image_size, GFP_KERNEL); + if (!image) + return ERR_PTR(-ENOMEM); + + memcpy(image + desc->bootloader_start_offset, bl_data, + bl_desc->code_size); + memcpy(image + desc->app_start_offset, code->data, code->size); + memcpy(image + desc->app_start_offset + desc->app_resident_data_offset, + data->data, data->size); + + return image; +} + +/** + * ls_ucode_img_load_gr() - load and prepare a LS GR ucode image + * + * Load the LS microcode, bootloader and signature and pack them into a single + * blob. Also generate the corresponding ucode descriptor. + */ +static int +ls_ucode_img_load_gr(const struct nvkm_subdev *subdev, struct ls_ucode_img *img, + const char *falcon_name, const u32 falcon_id) +{ + const struct firmware *bl, *code, *data; + struct lsf_ucode_desc *lsf_desc; + char f[64]; + int ret; + + img->ucode_header = NULL; + + snprintf(f, sizeof(f), "gr/%s_bl", falcon_name); + ret = nvkm_firmware_get(subdev->device, f, &bl); + if (ret) + goto error; + + snprintf(f, sizeof(f), "gr/%s_inst", falcon_name); + ret = nvkm_firmware_get(subdev->device, f, &code); + if (ret) + goto free_bl; + + snprintf(f, sizeof(f), "gr/%s_data", falcon_name); + ret = nvkm_firmware_get(subdev->device, f, &data); + if (ret) + goto free_inst; + + img->ucode_data = ls_ucode_img_build(bl, code, data, + &img->ucode_desc); + if (IS_ERR(img->ucode_data)) { + ret = PTR_ERR(img->ucode_data); + goto free_data; + } + img->ucode_size = img->ucode_desc.image_size; + + snprintf(f, sizeof(f), "gr/%s_sig", falcon_name); + lsf_desc = nvkm_acr_load_firmware(subdev, f, sizeof(*lsf_desc)); + if (IS_ERR(lsf_desc)) { + ret = PTR_ERR(lsf_desc); + goto free_image; + } + /* not needed? the signature should already have the right value */ + lsf_desc->falcon_id = falcon_id; + memcpy(&img->lsb_header.signature, lsf_desc, sizeof(*lsf_desc)); + img->falcon_id = lsf_desc->falcon_id; + kfree(lsf_desc); + + /* success path - only free requested firmware files */ + goto free_data; + +free_image: + kfree(img->ucode_data); +free_data: + nvkm_firmware_put(data); +free_inst: + nvkm_firmware_put(code); +free_bl: + nvkm_firmware_put(bl); +error: + return ret; +} + +int +acr_ls_ucode_load_fecs(const struct nvkm_subdev *subdev, + struct ls_ucode_img *img) +{ + return ls_ucode_img_load_gr(subdev, img, "fecs", + NVKM_SECBOOT_FALCON_FECS); +} + +int +acr_ls_ucode_load_gpccs(const struct nvkm_subdev *subdev, + struct ls_ucode_img *img) +{ + return ls_ucode_img_load_gr(subdev, img, "gpccs", + NVKM_SECBOOT_FALCON_GPCCS); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h index 3babed579b7d..430b88ec74cf 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/priv.h @@ -30,185 +30,13 @@ struct nvkm_secboot_func { int (*oneinit)(struct nvkm_secboot *); int (*fini)(struct nvkm_secboot *, bool suspend); void *(*dtor)(struct nvkm_secboot *); - int (*reset)(struct nvkm_secboot *, enum nvkm_secboot_falcon); - - /* ID of the falcon that will perform secure boot */ - enum nvkm_secboot_falcon boot_falcon; - /* Bit-mask of IDs of managed falcons */ - unsigned long managed_falcons; -}; - -int nvkm_secboot_ctor(const struct nvkm_secboot_func *, struct nvkm_device *, - int index, struct nvkm_secboot *); - -/* - * - * LS blob structures - * - */ - -/** - * struct lsf_ucode_desc - LS falcon signatures - * @prd_keys: signature to use when the GPU is in production mode - * @dgb_keys: signature to use when the GPU is in debug mode - * @b_prd_present: whether the production key is present - * @b_dgb_present: whether the debug key is present - * @falcon_id: ID of the falcon the ucode applies to - * - * Directly loaded from a signature file. - */ -struct lsf_ucode_desc { - u8 prd_keys[2][16]; - u8 dbg_keys[2][16]; - u32 b_prd_present; - u32 b_dbg_present; - u32 falcon_id; + int (*run_blob)(struct nvkm_secboot *, struct nvkm_gpuobj *); }; -/** - * struct lsf_lsb_header - LS firmware header - * @signature: signature to verify the firmware against - * @ucode_off: offset of the ucode blob in the WPR region. The ucode - * blob contains the bootloader, code and data of the - * LS falcon - * @ucode_size: size of the ucode blob, including bootloader - * @data_size: size of the ucode blob data - * @bl_code_size: size of the bootloader code - * @bl_imem_off: offset in imem of the bootloader - * @bl_data_off: offset of the bootloader data in WPR region - * @bl_data_size: size of the bootloader data - * @app_code_off: offset of the app code relative to ucode_off - * @app_code_size: size of the app code - * @app_data_off: offset of the app data relative to ucode_off - * @app_data_size: size of the app data - * @flags: flags for the secure bootloader - * - * This structure is written into the WPR region for each managed falcon. Each - * instance is referenced by the lsb_offset member of the corresponding - * lsf_wpr_header. - */ -struct lsf_lsb_header { - struct lsf_ucode_desc signature; - u32 ucode_off; - u32 ucode_size; - u32 data_size; - u32 bl_code_size; - u32 bl_imem_off; - u32 bl_data_off; - u32 bl_data_size; - u32 app_code_off; - u32 app_code_size; - u32 app_data_off; - u32 app_data_size; - u32 flags; -#define LSF_FLAG_LOAD_CODE_AT_0 1 -#define LSF_FLAG_DMACTL_REQ_CTX 4 -#define LSF_FLAG_FORCE_PRIV_LOAD 8 -}; - -/** - * struct lsf_wpr_header - LS blob WPR Header - * @falcon_id: LS falcon ID - * @lsb_offset: offset of the lsb_lsf_header in the WPR region - * @bootstrap_owner: secure falcon reponsible for bootstrapping the LS falcon - * @lazy_bootstrap: skip bootstrapping by ACR - * @status: bootstrapping status - * - * An array of these is written at the beginning of the WPR region, one for - * each managed falcon. The array is terminated by an instance which falcon_id - * is LSF_FALCON_ID_INVALID. - */ -struct lsf_wpr_header { - u32 falcon_id; - u32 lsb_offset; - u32 bootstrap_owner; - u32 lazy_bootstrap; - u32 status; -#define LSF_IMAGE_STATUS_NONE 0 -#define LSF_IMAGE_STATUS_COPY 1 -#define LSF_IMAGE_STATUS_VALIDATION_CODE_FAILED 2 -#define LSF_IMAGE_STATUS_VALIDATION_DATA_FAILED 3 -#define LSF_IMAGE_STATUS_VALIDATION_DONE 4 -#define LSF_IMAGE_STATUS_VALIDATION_SKIPPED 5 -#define LSF_IMAGE_STATUS_BOOTSTRAP_READY 6 -}; - - -/** - * struct ls_ucode_img_desc - descriptor of firmware image - * @descriptor_size: size of this descriptor - * @image_size: size of the whole image - * @bootloader_start_offset: start offset of the bootloader in ucode image - * @bootloader_size: size of the bootloader - * @bootloader_imem_offset: start off set of the bootloader in IMEM - * @bootloader_entry_point: entry point of the bootloader in IMEM - * @app_start_offset: start offset of the LS firmware - * @app_size: size of the LS firmware's code and data - * @app_imem_offset: offset of the app in IMEM - * @app_imem_entry: entry point of the app in IMEM - * @app_dmem_offset: offset of the data in DMEM - * @app_resident_code_offset: offset of app code from app_start_offset - * @app_resident_code_size: size of the code - * @app_resident_data_offset: offset of data from app_start_offset - * @app_resident_data_size: size of data - * - * A firmware image contains the code, data, and bootloader of a given LS - * falcon in a single blob. This structure describes where everything is. - * - * This can be generated from a (bootloader, code, data) set if they have - * been loaded separately, or come directly from a file. - */ -struct ls_ucode_img_desc { - u32 descriptor_size; - u32 image_size; - u32 tools_version; - u32 app_version; - char date[64]; - u32 bootloader_start_offset; - u32 bootloader_size; - u32 bootloader_imem_offset; - u32 bootloader_entry_point; - u32 app_start_offset; - u32 app_size; - u32 app_imem_offset; - u32 app_imem_entry; - u32 app_dmem_offset; - u32 app_resident_code_offset; - u32 app_resident_code_size; - u32 app_resident_data_offset; - u32 app_resident_data_size; - u32 nb_overlays; - struct {u32 start; u32 size; } load_ovl[64]; - u32 compressed; -}; - -/** - * struct ls_ucode_img - temporary storage for loaded LS firmwares - * @node: to link within lsf_ucode_mgr - * @falcon_id: ID of the falcon this LS firmware is for - * @ucode_desc: loaded or generated map of ucode_data - * @ucode_header: header of the firmware - * @ucode_data: firmware payload (code and data) - * @ucode_size: size in bytes of data in ucode_data - * @wpr_header: WPR header to be written to the LS blob - * @lsb_header: LSB header to be written to the LS blob - * - * Preparing the WPR LS blob requires information about all the LS firmwares - * (size, etc) to be known. This structure contains all the data of one LS - * firmware. - */ -struct ls_ucode_img { - struct list_head node; - enum nvkm_secboot_falcon falcon_id; - - struct ls_ucode_img_desc ucode_desc; - u32 *ucode_header; - u8 *ucode_data; - u32 ucode_size; - - struct lsf_wpr_header wpr_header; - struct lsf_lsb_header lsb_header; -}; +int nvkm_secboot_ctor(const struct nvkm_secboot_func *, struct nvkm_acr *, + struct nvkm_device *, int, struct nvkm_secboot *); +int nvkm_secboot_falcon_reset(struct nvkm_secboot *); +int nvkm_secboot_falcon_run(struct nvkm_secboot *); struct flcn_u64 { u32 lo; @@ -230,150 +58,4 @@ static inline struct flcn_u64 u64_to_flcn64(u64 u) return ret; } -#define GM200_ACR_MAX_APPS 8 - -struct hsf_load_header_app { - u32 sec_code_off; - u32 sec_code_size; -}; - -/** - * struct hsf_load_header - HS firmware load header - */ -struct hsf_load_header { - u32 non_sec_code_off; - u32 non_sec_code_size; - u32 data_dma_base; - u32 data_size; - u32 num_apps; - struct hsf_load_header_app app[0]; -}; - -/** - * struct secboot_ls_single_func - manages a single LS firmware - * - * @load: load the external firmware into a ls_ucode_img - * @generate_bl_desc: function called on a block of bl_desc_size to generate the - * proper bootloader descriptor for this LS firmware - * @bl_desc_size: size of the bootloader descriptor - */ -struct secboot_ls_single_func { - int (*load)(const struct nvkm_subdev *, struct ls_ucode_img *); - void (*generate_bl_desc)(const struct ls_ucode_img *, u64, void *); - u32 bl_desc_size; -}; - -/** - * typedef secboot_ls_func - manages all the LS firmwares for this ACR - */ -typedef const struct secboot_ls_single_func * -secboot_ls_func[NVKM_SECBOOT_FALCON_END]; - -int gm200_ls_load_fecs(const struct nvkm_subdev *, struct ls_ucode_img *); -int gm200_ls_load_gpccs(const struct nvkm_subdev *, struct ls_ucode_img *); - -/** - * Contains the whole secure boot state, allowing it to be performed as needed - * @wpr_addr: physical address of the WPR region - * @wpr_size: size in bytes of the WPR region - * @ls_blob: LS blob of all the LS firmwares, signatures, bootloaders - * @ls_blob_size: size of the LS blob - * @ls_blob_nb_regions: number of LS firmwares that will be loaded - * @acr_blob: HS blob - * @acr_blob_vma: mapping of the HS blob into the secure falcon's VM - * @acr_bl_desc: bootloader descriptor of the HS blob - * @hsbl_blob: HS blob bootloader - * @inst: instance block for HS falcon - * @pgd: page directory for the HS falcon - * @vm: address space used by the HS falcon - * @falcon_state: current state of the managed falcons - * @firmware_ok: whether the firmware blobs have been created - */ -struct gm200_secboot { - struct nvkm_secboot base; - const struct gm200_secboot_func *func; - const secboot_ls_func *ls_func; - - /* - * Address and size of the fixed WPR region, if any. On Tegra this - * region is set by the bootloader - */ - u64 wpr_addr; - u32 wpr_size; - - /* - * Address and size of the actual WPR region. - */ - u64 acr_wpr_addr; - u32 acr_wpr_size; - - /* - * HS FW - lock WPR region (dGPU only) and load LS FWs - * on Tegra the HS FW copies the LS blob into the fixed WPR instead - */ - struct nvkm_gpuobj *acr_load_blob; - struct { - struct hsf_load_header load_bl_header; - struct hsf_load_header_app __load_apps[GM200_ACR_MAX_APPS]; - }; - - /* HS FW - unlock WPR region (dGPU only) */ - struct nvkm_gpuobj *acr_unload_blob; - struct { - struct hsf_load_header unload_bl_header; - struct hsf_load_header_app __unload_apps[GM200_ACR_MAX_APPS]; - }; - - /* HS bootloader */ - void *hsbl_blob; - - /* LS FWs, to be loaded by the HS ACR */ - struct nvkm_gpuobj *ls_blob; - - /* Instance block & address space used for HS FW execution */ - struct nvkm_gpuobj *inst; - struct nvkm_gpuobj *pgd; - struct nvkm_vm *vm; - - /* To keep track of the state of all managed falcons */ - enum { - /* In non-secure state, no firmware loaded, no privileges*/ - NON_SECURE = 0, - /* In low-secure mode and ready to be started */ - RESET, - /* In low-secure mode and running */ - RUNNING, - } falcon_state[NVKM_SECBOOT_FALCON_END]; - - bool firmware_ok; -}; -#define gm200_secboot(sb) container_of(sb, struct gm200_secboot, base) - -/** - * Contains functions we wish to abstract between GM200-like implementations - * @bl_desc_size: size of the BL descriptor used by this chip. - * @generate_bl_desc: hook that generates the proper BL descriptor format from - * the hsf_load_header format into a preallocated array of - * size bl_desc_size - * @prepare_blobs: prepares the various blobs needed for secure booting - */ -struct gm200_secboot_func { - /* - * Size of the bootloader descriptor for this chip. A block of this - * size is allocated before booting a falcon and the fixup_bl_desc - * callback is called on it - */ - u32 bl_desc_size; - void (*generate_bl_desc)(const struct hsf_load_header *, void *, u64); - - int (*prepare_blobs)(struct gm200_secboot *); -}; - -int gm200_secboot_oneinit(struct nvkm_secboot *); -void *gm200_secboot_dtor(struct nvkm_secboot *); -int gm200_secboot_reset(struct nvkm_secboot *, enum nvkm_secboot_falcon); -int gm200_secboot_start(struct nvkm_secboot *, enum nvkm_secboot_falcon); - -int gm20x_secboot_prepare_blobs(struct gm200_secboot *); - #endif |