drm/amdgpu: fix VFI XCC addressing for gmc v12_1 VM invalidation

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The VM invalidation engine registers are always accessed with instance 0.
Under SR-IOV the instance is forwarded to RLCG-VFI as the target XCC, so
invalidating any GFXHUB other than the first one hits the registers of
XCC 0.

Pass the GFXHUB index as the register instance, and print the XCC ID in
the VFI access messages.

Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Signed-off-by: YuBiao Wang <YuBiao.Wang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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YuBiao Wang 2026-09-24 14:55:26 +08:00 • committed by Alex Deucher

parent 7bea1821f9

commit 89749f1d9e

2 changed files with 44 additions and 13 deletions

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8

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

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49

drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c

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