drm/amdgpu: Handle UALink vPod reconfiguration while ACTIVE

Browse source

An already-ACTIVE accelerator with an unchanged vpod_id skipped
re-activation, so growing or shrinking a live vPod left staying GPUs
with links/GART built for the old member set. Detect membership changes
(owned snapshot vs firmware read-back) and bounce affected ACTIVE peers
once the integrity check passes. Firmware requires a full metadata
reload while halted, so a full deactivate/activate is needed rather than
per-peer deltas.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Mukul Joshi 2026-07-21 12:09:00 -04:00 • committed by Alex Deucher

parent 7162ba8e96

commit d820578bfa

1 changed files with 57 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

60

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

View file