drm/amdgpu/ras: reload RAS TA from ras mgr resume

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When uniras owns the RAS TA, rascore can no longer rely on the legacy
PSP context to keep TA session state alive across reset or suspend.
The manager has to provide enough metadata to reload the TA and rebuild
its shared buffer after PSP reinitialization.

Source TA firmware metadata from adev->psp.ras_context.context.bin_desc,
allocate and free the shared buffer on demand, and hand the fini
cleanup back to rascore through a put_ras_ta_fini_param callback. Add a
resume hook that reloads the TA with skip_lock set so the reload can
run after GPU reset.

Export thin ras_mgr helpers for feature toggles and deferred replay so
higher layers can use the rascore-owned TA path without depending on
legacy PSP-managed TA session state directly.

Signed-off-by: Jinzhou Su <jinzhou.su@amd.com>
Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Xiang Liu 2026-04-09 16:15:32 +08:00 • committed by Alex Deucher

parent 8e1561247d

commit 7008fc10a6

1 changed files with 74 additions and 0 deletions

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drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_ras_mgr.c

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