drm/amdkfd: Don't use DEVICE_COHERENT on GFX12.1

NICs attached to remote GPUs are unable to access VRAM coherently.
Hence, use DEVICE_PRIVATE for GFX12.1

v2: Squash in Fix migrate_vma DEVICE_COHERENT setting

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harish Kasiviswanathan 2026-01-28 11:23:16 -05:00 • committed by Alex Deucher
commit da352ff193