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drm/amdgpu: Check if AID is active before access

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Access XGMI registers only if AID is active.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2025-11-06 18:44:29 +05:30 committed by Alex Deucher
parent d4a640d4b9
commit baf75a087c
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
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@ -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);