diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 17bc7f530898..2fc51f815eaa 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -1646,9 +1646,15 @@ static ssize_t amdgpu_get_pcie_bw(struct device *dev, { struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; - uint64_t count0, count1; + uint64_t count0 = 0, count1 = 0; int ret; + if (adev->flags & AMD_IS_APU) + return -ENODATA; + + if (!adev->asic_funcs->get_pcie_usage) + return -ENODATA; + ret = pm_runtime_get_sync(ddev->dev); if (ret < 0) return ret; |