Based on kernel version 6.11
. Page generated on 2024-09-24 08:21 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | ======================= dGPU firmware flashing ======================= IFWI ---- Flashing the dGPU integrated firmware image (IFWI) is supported by GPUs that use the PSP to orchestrate the update (Navi3x or newer GPUs). For supported GPUs, `amdgpu` will export a series of sysfs files that can be used for the flash process. The IFWI flash process is: 1. Ensure the IFWI image is intended for the dGPU on the system. 2. "Write" the IFWI image to the sysfs file `psp_vbflash`. This will stage the IFWI in memory. 3. "Read" from the `psp_vbflash` sysfs file to initiate the flash process. 4. Poll the `psp_vbflash_status` sysfs file to determine when the flash process completes. USB-C PD F/W ------------ On GPUs that support flashing an updated USB-C PD firmware image, the process is done using the `usbc_pd_fw` sysfs file. * Reading the file will provide the current firmware version. * Writing the name of a firmware payload stored in `/lib/firmware/amdgpu` to the sysfs file will initiate the flash process. The firmware payload stored in `/lib/firmware/amdgpu` can be named any name as long as it doesn't conflict with other existing binaries that are used by `amdgpu`. sysfs files ----------- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c |