drm/amdgpu: Assign accel state based on ASP config

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Add explicit PPOD/VPOD states for clarity. Assign the state accordingly
as received from ASP during initialization.

UALink accel state transitions:

UNCONFIGURED -> PPOD_CONFIGURED -> VPOD_CONFIGURED -> READY -> ACTIVE

- PPOD: sysfs ppod commit/ ASP {UAL_CFG_PPOD}
- VPOD: sysfs vpod commit/ ASP {UAL_CFG_VPOD} | {UAL_CFG_STATION}
- READY: local vpod integrity + activate_accelerator()
- ACTIVE: all local gpus belonging to one vpod are configured and ready.

deactivate_accelerator(): READY -> PPOD_CONFIGURED
invalid vpod: -> ERROR

Query ualink info during late init phase. Add a local vpod integrity
check before activating devices in the vpod. Move the devices to active
state once integrity check passes.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Lijo Lazar 2026-06-05 12:24:34 +05:30 • committed by Alex Deucher

parent 9d36552793

commit 0e8eb0dcea

4 changed files with 293 additions and 65 deletions

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6

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

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3

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

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346

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

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3

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

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