From: Victor Skvortsov victor.skvortsov@amd.com
[ Upstream commit 9c05636ca72a2dbf41bf0900380f438a0de47319 ]
VFs cannot read the NAK_COUNTER register. This information is only available through PMFW metrics.
Signed-off-by: Victor Skvortsov victor.skvortsov@amd.com Reviewed-by: Lijo Lazar lijo.lazar@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 27 ++++++++++++++++------ 1 file changed, 20 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 24d007715a14a..ef0aa2dd33aa8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -168,6 +168,24 @@ static ssize_t amdgpu_device_get_pcie_replay_count(struct device *dev, static DEVICE_ATTR(pcie_replay_count, 0444, amdgpu_device_get_pcie_replay_count, NULL);
+static int amdgpu_device_attr_sysfs_init(struct amdgpu_device *adev) +{ + int ret = 0; + + if (!amdgpu_sriov_vf(adev)) + ret = sysfs_create_file(&adev->dev->kobj, + &dev_attr_pcie_replay_count.attr); + + return ret; +} + +static void amdgpu_device_attr_sysfs_fini(struct amdgpu_device *adev) +{ + if (!amdgpu_sriov_vf(adev)) + sysfs_remove_file(&adev->dev->kobj, + &dev_attr_pcie_replay_count.attr); +} + static ssize_t amdgpu_sysfs_reg_state_get(struct file *f, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t ppos, size_t count) @@ -4028,11 +4046,6 @@ static bool amdgpu_device_check_iommu_remap(struct amdgpu_device *adev) } #endif
-static const struct attribute *amdgpu_dev_attributes[] = { - &dev_attr_pcie_replay_count.attr, - NULL -}; - static void amdgpu_device_set_mcbp(struct amdgpu_device *adev) { if (amdgpu_mcbp == 1) @@ -4475,7 +4488,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, } else adev->ucode_sysfs_en = true;
- r = sysfs_create_files(&adev->dev->kobj, amdgpu_dev_attributes); + r = amdgpu_device_attr_sysfs_init(adev); if (r) dev_err(adev->dev, "Could not create amdgpu device attr\n");
@@ -4605,7 +4618,7 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev) amdgpu_pm_sysfs_fini(adev); if (adev->ucode_sysfs_en) amdgpu_ucode_sysfs_fini(adev); - sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes); + amdgpu_device_attr_sysfs_fini(adev); amdgpu_fru_sysfs_fini(adev);
amdgpu_reg_state_sysfs_fini(adev);