drm/amdgpu: Add connection state management

Add functions for managing connection state between GPUs
before import/export of ualink handles occurs.
These functions handle the lifecycle of connections between
GPUs,including handling GPU resets, in the NPA-based memory
sharing model.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mukul Joshi 2026-05-29 17:53:42 -04:00 • committed by Alex Deucher
commit 2b4c5569d8
2 changed files with 239 additions and 1 deletions