drm/amdgpu: clean up vm flush func for gc v12_1

Clean up gfx_v12_1_ring_emit_vm_flush function, since
PFP_SYNC_ME cmd not support on gc v12_1, and it does
not have gfx ring.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Likun Gao 2026-07-29 16:13:37 +08:00 • committed by Alex Deucher
commit 7ceff36ab1