drm/amdgpu: Init soc_v1_0 rev_id from IP discovery die_id

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Software components need to detect die revisions in order to apply the
correct software workarounds. During system boot, ASP firmware reads
the IDCODE values from the MID, AID and XCD fuses and encodes the die
revision into die_info[0].die_id in the IP discovery blob.

v2: Default die_rev_id to 0 and warn instead of failing probe when IP
discovery does not provide a die rev id.
v3: Update names for external_rev_id enumerators.

Signed-off-by: Horatio Zhang <hongkun.zhang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Horatio Zhang 2026-07-30 13:36:28 +08:00 • committed by Alex Deucher

parent b8cb9a172b

commit 403d8ca60b

3 changed files with 97 additions and 3 deletions

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24

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

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2

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

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74

drivers/gpu/drm/amd/amdgpu/soc_v1_0.c

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