drm/amd: Add a new helper for loading/validating microcode

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All microcode runs a basic validation after it's been loaded. Each
IP block as part of init will run both.

Introduce a wrapper for request_firmware and amdgpu_ucode_validate.
This wrapper will also remap any error codes from request_firmware
to -ENODEV.  This is so that early_init will fail if firmware couldn't
be loaded instead of the IP block being disabled.

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Mario Limonciello 2023-01-03 13:18:19 -06:00 • committed by Alex Deucher

parent 755f32a39e

commit 2210af50ae

2 changed files with 39 additions and 0 deletions

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36

drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c

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3

drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h

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