--- /dev/null
+/*
+ * Copyright (c) 2017, 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_r367.h"
+#include "acr_r361.h"
+
+#include <core/gpuobj.h>
+
+/*
+ * r367 ACR: new LS signature format requires a rewrite of LS firmware and
+ * blob creation functions. Also the hsflcn_desc layout has changed slightly.
+ */
+
+#define LSF_LSB_DEPMAP_SIZE 11
+
+/**
+ * struct acr_r367_lsf_lsb_header - LS firmware header
+ *
+ * See also struct acr_r352_lsf_lsb_header for documentation.
+ */
+struct acr_r367_lsf_lsb_header {
+ /**
+ * LS falcon signatures
+ * @prd_keys: signature to use in production mode
+ * @dgb_keys: signature to use 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
+ */
+ struct {
+ u8 prd_keys[2][16];
+ u8 dbg_keys[2][16];
+ u32 b_prd_present;
+ u32 b_dbg_present;
+ u32 falcon_id;
+ u32 supports_versioning;
+ u32 version;
+ u32 depmap_count;
+ u8 depmap[LSF_LSB_DEPMAP_SIZE * 2 * 4];
+ u8 kdf[16];
+ } 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;
+};
+
+/**
+ * struct acr_r367_lsf_wpr_header - LS blob WPR Header
+ *
+ * See also struct acr_r352_lsf_wpr_header for documentation.
+ */
+struct acr_r367_lsf_wpr_header {
+ u32 falcon_id;
+ u32 lsb_offset;
+ u32 bootstrap_owner;
+ u32 lazy_bootstrap;
+ u32 bin_version;
+ 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
+#define LSF_IMAGE_STATUS_REVOCATION_CHECK_FAILED 7
+};
+
+/**
+ * struct ls_ucode_img_r367 - ucode image augmented with r367 headers
+ */
+struct ls_ucode_img_r367 {
+ struct ls_ucode_img base;
+
+ struct acr_r367_lsf_wpr_header wpr_header;
+ struct acr_r367_lsf_lsb_header lsb_header;
+};
+#define ls_ucode_img_r367(i) container_of(i, struct ls_ucode_img_r367, base)
+
+struct ls_ucode_img *
+acr_r367_ls_ucode_img_load(const struct acr_r352 *acr,
+ enum nvkm_secboot_falcon falcon_id)
+{
+ const struct nvkm_subdev *subdev = acr->base.subdev;
+ struct ls_ucode_img_r367 *img;
+ int ret;
+
+ img = kzalloc(sizeof(*img), GFP_KERNEL);
+ if (!img)
+ return ERR_PTR(-ENOMEM);
+
+ img->base.falcon_id = falcon_id;
+
+ ret = acr->func->ls_func[falcon_id]->load(subdev, &img->base);
+ if (ret) {
+ kfree(img->base.ucode_data);
+ kfree(img->base.sig);
+ kfree(img);
+ return ERR_PTR(ret);
+ }
+
+ /* Check that the signature size matches our expectations... */
+ if (img->base.sig_size != sizeof(img->lsb_header.signature)) {
+ nvkm_error(subdev, "invalid signature size for %s falcon!\n",
+ nvkm_secboot_falcon_name[falcon_id]);
+ return ERR_PTR(-EINVAL);
+ }
+
+ /* Copy signature to the right place */
+ memcpy(&img->lsb_header.signature, img->base.sig, img->base.sig_size);
+
+ /* not needed? the signature should already have the right value */
+ img->lsb_header.signature.falcon_id = falcon_id;
+
+ return &img->base;
+}
+
+#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
+
+static u32
+acr_r367_ls_img_fill_headers(struct acr_r352 *acr,
+ struct ls_ucode_img_r367 *img, u32 offset)
+{
+ struct ls_ucode_img *_img = &img->base;
+ struct acr_r367_lsf_wpr_header *whdr = &img->wpr_header;
+ struct acr_r367_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];
+
+ /* Fill WPR header */
+ whdr->falcon_id = _img->falcon_id;
+ whdr->bootstrap_owner = acr->base.boot_falcon;
+ whdr->bin_version = lhdr->signature.version;
+ whdr->status = LSF_IMAGE_STATUS_COPY;
+
+ /* Skip bootstrapping falcons started by someone else than ACR */
+ if (acr->lazy_bootstrap & BIT(_img->falcon_id))
+ whdr->lazy_bootstrap = 1;
+
+ /* Align, save off, and include an LSB header size */
+ offset = ALIGN(offset, LSF_LSB_HEADER_ALIGN);
+ whdr->lsb_offset = offset;
+ offset += sizeof(*lhdr);
+
+ /*
+ * Align, save off, and include the original (static) ucode
+ * image size
+ */
+ offset = ALIGN(offset, LSF_UCODE_DATA_ALIGN);
+ _img->ucode_off = 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 = func->lhdr_flags;
+ if (_img->falcon_id == acr->base.boot_falcon)
+ lhdr->flags |= LSF_FLAG_DMACTL_REQ_CTX;
+
+ /* 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;
+}
+
+int
+acr_r367_ls_fill_headers(struct acr_r352 *acr, struct list_head *imgs)
+{
+ struct ls_ucode_img_r367 *img;
+ struct list_head *l;
+ u32 count = 0;
+ u32 offset;
+
+ /* Count the number of images to manage */
+ list_for_each(l, imgs)
+ count++;
+
+ /*
+ * 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(img->wpr_header) * (count + 1);
+
+ /*
+ * Walk the managed falcons, accounting for the LSB structs
+ * as well as the ucode images.
+ */
+ list_for_each_entry(img, imgs, base.node) {
+ offset = acr_r367_ls_img_fill_headers(acr, img, offset);
+ }
+
+ return offset;
+}
+
+int
+acr_r367_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
+ struct nvkm_gpuobj *wpr_blob, u64 wpr_addr)
+{
+ struct ls_ucode_img *_img;
+ u32 pos = 0;
+
+ nvkm_kmap(wpr_blob);
+
+ list_for_each_entry(_img, imgs, node) {
+ struct ls_ucode_img_r367 *img = ls_ucode_img_r367(_img);
+ const struct acr_r352_ls_func *ls_func =
+ acr->func->ls_func[_img->falcon_id];
+ u8 gdesc[ls_func->bl_desc_size];
+
+ 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 */
+ memset(gdesc, 0, 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;
+}
+
+struct acr_r367_hsflcn_desc {
+ u8 reserved_dmem[0x200];
+ u32 signatures[4];
+ u32 wpr_region_id;
+ u32 wpr_offset;
+ u32 mmu_memory_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;
+ u32 shadow_mem_start_addr;
+ } 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;
+};
+
+void
+acr_r367_fixup_hs_desc(struct acr_r352 *acr, struct nvkm_secboot *sb,
+ void *_desc)
+{
+ struct acr_r367_hsflcn_desc *desc = _desc;
+ struct nvkm_gpuobj *ls_blob = acr->ls_blob;
+
+ /* WPR region information if WPR is not fixed */
+ if (sb->wpr_size == 0) {
+ u64 wpr_start = ls_blob->addr;
+ u64 wpr_end = ls_blob->addr + ls_blob->size;
+
+ if (acr->func->shadow_blob)
+ wpr_start += ls_blob->size / 2;
+
+ desc->wpr_region_id = 1;
+ desc->regions.no_regions = 2;
+ desc->regions.region_props[0].start_addr = wpr_start >> 8;
+ desc->regions.region_props[0].end_addr = wpr_end >> 8;
+ desc->regions.region_props[0].region_id = 1;
+ desc->regions.region_props[0].read_mask = 0xf;
+ desc->regions.region_props[0].write_mask = 0xc;
+ desc->regions.region_props[0].client_mask = 0x2;
+ if (acr->func->shadow_blob)
+ desc->regions.region_props[0].shadow_mem_start_addr =
+ ls_blob->addr >> 8;
+ else
+ desc->regions.region_props[0].shadow_mem_start_addr = 0;
+ } else {
+ desc->ucode_blob_base = ls_blob->addr;
+ desc->ucode_blob_size = ls_blob->size;
+ }
+}
+
+const struct acr_r352_func
+acr_r367_func = {
+ .fixup_hs_desc = acr_r367_fixup_hs_desc,
+ .generate_hs_bl_desc = acr_r361_generate_hs_bl_desc,
+ .hs_bl_desc_size = sizeof(struct acr_r361_flcn_bl_desc),
+ .shadow_blob = true,
+ .ls_ucode_img_load = acr_r367_ls_ucode_img_load,
+ .ls_fill_headers = acr_r367_ls_fill_headers,
+ .ls_write_wpr = acr_r367_ls_write_wpr,
+ .ls_func = {
+ [NVKM_SECBOOT_FALCON_FECS] = &acr_r361_ls_fecs_func,
+ [NVKM_SECBOOT_FALCON_GPCCS] = &acr_r361_ls_gpccs_func,
+ [NVKM_SECBOOT_FALCON_PMU] = &acr_r361_ls_pmu_func,
+ [NVKM_SECBOOT_FALCON_SEC2] = &acr_r361_ls_sec2_func,
+ },
+};
+
+struct nvkm_acr *
+acr_r367_new(enum nvkm_secboot_falcon boot_falcon,
+ unsigned long managed_falcons)
+{
+ return acr_r352_new_(&acr_r367_func, boot_falcon, managed_falcons);
+}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff