drm/amdgpu: add cgs query info of pci bus devfn

Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index e521920..383204e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -875,6 +875,9 @@ static int amdgpu_cgs_query_system_info(struct cgs_device *cgs_device,
        case CGS_SYSTEM_INFO_PCIE_SUB_SYS_VENDOR_ID:
                sys_info->value = adev->pdev->subsystem_vendor;
                break;
+       case CGS_SYSTEM_INFO_PCIE_BUS_DEVFN:
+               sys_info->value = adev->pdev->devfn;
+               break;
        default:
                return -ENODEV;
        }

diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h
index 2c1f13e..030b146 100644 (file)
--- a/drivers/gpu/drm/amd/include/cgs_common.h
+++ b/drivers/gpu/drm/amd/include/cgs_common.h
@@ -100,6 +100,7 @@ enum cgs_system_info_id {
        CGS_SYSTEM_INFO_GFX_SE_INFO,
        CGS_SYSTEM_INFO_PCIE_SUB_SYS_ID,
        CGS_SYSTEM_INFO_PCIE_SUB_SYS_VENDOR_ID,
+       CGS_SYSTEM_INFO_PCIE_BUS_DEVFN,
        CGS_SYSTEM_INFO_ID_MAXIMUM,
 };