[PATCH 1/4] drm/amdgpu: add cgs query info of pci bus devfn

[Eric Huang]

Signed-off-by: Eric Huang <JinHuiEric.Huang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c  | 3 +++
 drivers/gpu/drm/amd/include/cgs_common.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 53d1591..c316f8f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -796,6 +796,9 @@ 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
--- 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,
 };
 
-- 
2.7.4