Commit cd956e75 authored by Mangesh Gadre's avatar Mangesh Gadre Committed by Alex Deucher
Browse files

drm/amdgpu:Expose physical id of device in XGMI hive 



This identifies the physical ordering of devices in the hive

v2: fix compilation issue

Signed-off-by: default avatarMangesh Gadre <Mangesh.Gadre@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent be5a3fdc

drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c

+20 −0
Original line number Diff line number Diff line
@@ -325,6 +325,17 @@ static ssize_t amdgpu_xgmi_show_device_id(struct device *dev, 


}



static ssize_t amdgpu_xgmi_show_physical_id(struct device *dev,

				     struct device_attribute *attr,

				     char *buf)

{

	struct drm_device *ddev = dev_get_drvdata(dev);

	struct amdgpu_device *adev = drm_to_adev(ddev);



	return sysfs_emit(buf, "%u\n", adev->gmc.xgmi.physical_node_id);



}



static ssize_t amdgpu_xgmi_show_num_hops(struct device *dev,

					struct device_attribute *attr,

					char *buf)
@@ -390,6 +401,7 @@ static ssize_t amdgpu_xgmi_show_error(struct device *dev, 




static DEVICE_ATTR(xgmi_device_id, S_IRUGO, amdgpu_xgmi_show_device_id, NULL);

static DEVICE_ATTR(xgmi_physical_id, 0444, amdgpu_xgmi_show_physical_id, NULL);

static DEVICE_ATTR(xgmi_error, S_IRUGO, amdgpu_xgmi_show_error, NULL);

static DEVICE_ATTR(xgmi_num_hops, S_IRUGO, amdgpu_xgmi_show_num_hops, NULL);

static DEVICE_ATTR(xgmi_num_links, S_IRUGO, amdgpu_xgmi_show_num_links, NULL);
@@ -407,6 +419,12 @@ static int amdgpu_xgmi_sysfs_add_dev_info(struct amdgpu_device *adev, 
		return ret;

	}



	ret = device_create_file(adev->dev, &dev_attr_xgmi_physical_id);

	if (ret) {

		dev_err(adev->dev, "XGMI: Failed to create device file xgmi_physical_id\n");

		return ret;

	}



	/* Create xgmi error file */

	ret = device_create_file(adev->dev, &dev_attr_xgmi_error);

	if (ret)
@@ -448,6 +466,7 @@ static int amdgpu_xgmi_sysfs_add_dev_info(struct amdgpu_device *adev, 


remove_file:

	device_remove_file(adev->dev, &dev_attr_xgmi_device_id);

	device_remove_file(adev->dev, &dev_attr_xgmi_physical_id);

	device_remove_file(adev->dev, &dev_attr_xgmi_error);

	device_remove_file(adev->dev, &dev_attr_xgmi_num_hops);

	device_remove_file(adev->dev, &dev_attr_xgmi_num_links);
@@ -463,6 +482,7 @@ static void amdgpu_xgmi_sysfs_rem_dev_info(struct amdgpu_device *adev, 
	memset(node, 0, sizeof(node));



	device_remove_file(adev->dev, &dev_attr_xgmi_device_id);

	device_remove_file(adev->dev, &dev_attr_xgmi_physical_id);

	device_remove_file(adev->dev, &dev_attr_xgmi_error);

	device_remove_file(adev->dev, &dev_attr_xgmi_num_hops);

	device_remove_file(adev->dev, &dev_attr_xgmi_num_links);