2 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
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15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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20 * DEALINGS IN THE SOFTWARE.
27 #include <core/firmware.h>
29 #define BL_DESC_BLK_SIZE 256
31 * Build a ucode image and descriptor from provided bootloader, code and data.
33 * @bl: bootloader image, including 16-bytes descriptor
34 * @code: LS firmware code segment
35 * @data: LS firmware data segment
36 * @desc: ucode descriptor to be written
38 * Return: allocated ucode image with corresponding descriptor information. desc
39 * is also updated to contain the right offsets within returned image.
42 ls_ucode_img_build(const struct firmware *bl, const struct firmware *code,
43 const struct firmware *data, struct ls_ucode_img_desc *desc)
45 struct fw_bin_header *bin_hdr = (void *)bl->data;
46 struct fw_bl_desc *bl_desc = (void *)bl->data + bin_hdr->header_offset;
47 void *bl_data = (void *)bl->data + bin_hdr->data_offset;
51 desc->bootloader_start_offset = pos;
52 desc->bootloader_size = ALIGN(bl_desc->code_size, sizeof(u32));
53 desc->bootloader_imem_offset = bl_desc->start_tag * 256;
54 desc->bootloader_entry_point = bl_desc->start_tag * 256;
56 pos = ALIGN(pos + desc->bootloader_size, BL_DESC_BLK_SIZE);
57 desc->app_start_offset = pos;
58 desc->app_size = ALIGN(code->size, BL_DESC_BLK_SIZE) +
59 ALIGN(data->size, BL_DESC_BLK_SIZE);
60 desc->app_imem_offset = 0;
61 desc->app_imem_entry = 0;
62 desc->app_dmem_offset = 0;
63 desc->app_resident_code_offset = 0;
64 desc->app_resident_code_size = ALIGN(code->size, BL_DESC_BLK_SIZE);
66 pos = ALIGN(pos + desc->app_resident_code_size, BL_DESC_BLK_SIZE);
67 desc->app_resident_data_offset = pos - desc->app_start_offset;
68 desc->app_resident_data_size = ALIGN(data->size, BL_DESC_BLK_SIZE);
70 desc->image_size = ALIGN(bl_desc->code_size, BL_DESC_BLK_SIZE) +
73 image = kzalloc(desc->image_size, GFP_KERNEL);
75 return ERR_PTR(-ENOMEM);
77 memcpy(image + desc->bootloader_start_offset, bl_data,
79 memcpy(image + desc->app_start_offset, code->data, code->size);
80 memcpy(image + desc->app_start_offset + desc->app_resident_data_offset,
81 data->data, data->size);
87 * ls_ucode_img_load_gr() - load and prepare a LS GR ucode image
89 * Load the LS microcode, bootloader and signature and pack them into a single
90 * blob. Also generate the corresponding ucode descriptor.
93 ls_ucode_img_load_gr(const struct nvkm_subdev *subdev, struct ls_ucode_img *img,
94 const char *falcon_name)
96 const struct firmware *bl, *code, *data, *sig;
100 snprintf(f, sizeof(f), "gr/%s_bl", falcon_name);
101 ret = nvkm_firmware_get(subdev->device, f, &bl);
105 snprintf(f, sizeof(f), "gr/%s_inst", falcon_name);
106 ret = nvkm_firmware_get(subdev->device, f, &code);
110 snprintf(f, sizeof(f), "gr/%s_data", falcon_name);
111 ret = nvkm_firmware_get(subdev->device, f, &data);
115 snprintf(f, sizeof(f), "gr/%s_sig", falcon_name);
116 ret = nvkm_firmware_get(subdev->device, f, &sig);
120 img->sig = kmemdup(sig->data, sig->size, GFP_KERNEL);
125 img->sig_size = sig->size;
127 img->ucode_data = ls_ucode_img_build(bl, code, data,
129 if (IS_ERR(img->ucode_data)) {
131 ret = PTR_ERR(img->ucode_data);
134 img->ucode_size = img->ucode_desc.image_size;
137 nvkm_firmware_put(sig);
139 nvkm_firmware_put(data);
141 nvkm_firmware_put(code);
143 nvkm_firmware_put(bl);
149 acr_ls_ucode_load_fecs(const struct nvkm_secboot *sb, struct ls_ucode_img *img)
151 return ls_ucode_img_load_gr(&sb->subdev, img, "fecs");
155 acr_ls_ucode_load_gpccs(const struct nvkm_secboot *sb, struct ls_ucode_img *img)
157 return ls_ucode_img_load_gr(&sb->subdev, img, "gpccs");