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-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 8beff0158c42..a39c7127c9e8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1453,6 +1453,10 @@ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev)
if (amdgpu_sriov_vf(adev))
return 0;
+ /* PCI_EXT_CAP_ID_VNDR extended capability is located at 0x100 */
+ if (!pci_find_ext_capability(adev->pdev, PCI_EXT_CAP_ID_VNDR))
+ DRM_WARN("System can't access extended configuration space,please check!!\n");
+
/* skip if the bios has already enabled large BAR */
if (adev->gmc.real_vram_size &&
(pci_resource_len(adev->pdev, 0) >= adev->gmc.real_vram_size))