From baf75a087c41eeb03c471099dc5d77e3b068c33b Mon Sep 17 00:00:00 2001 From: Lijo Lazar Date: Thu, 6 Nov 2025 18:44:29 +0530 Subject: [PATCH] drm/amdgpu: Check if AID is active before access Access XGMI registers only if AID is active. Signed-off-by: Lijo Lazar Reviewed-by: Asad Kamal Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 1ede308a7c677..2f553af1d2a3e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -333,6 +333,10 @@ static u32 xgmi_v6_4_get_link_status(struct amdgpu_device *adev, int global_link } i = global_link_num / n; + + if (!(adev->aid_mask & BIT(i))) + return U32_MAX; + addr += adev->asic_funcs->encode_ext_smn_addressing(i); return RREG32_PCIE_EXT(addr); -- 2.47.3