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drm/i915/gvt: Add mdev device attribute group

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This adds initial attribute group for mdev to hold vGPU related
for each mdev device, currently just vGPU id is shown.

v2: rename group name as "intel_vgpu"

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
This commit is contained in:
Zhenyu Wang 2017-03-16 18:06:39 +08:00
parent e2e02cbb5b
commit 7a7a65617b
1 changed files with 32 additions and 0 deletions
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32
drivers/gpu/drm/i915/gvt/kvmgt.c
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@ -1146,8 +1146,40 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
return 0;
}
static ssize_t
vgpu_id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct mdev_device *mdev = mdev_from_dev(dev);
if (mdev) {
struct intel_vgpu *vgpu = (struct intel_vgpu *)
mdev_get_drvdata(mdev);
return sprintf(buf, "%d\n", vgpu->id);
}
return sprintf(buf, "\n");
}
static DEVICE_ATTR_RO(vgpu_id);
static struct attribute *intel_vgpu_attrs[] = {
&dev_attr_vgpu_id.attr,
NULL
};
static const struct attribute_group intel_vgpu_group = {
.name = "intel_vgpu",
.attrs = intel_vgpu_attrs,
};
static const struct attribute_group *intel_vgpu_groups[] = {
&intel_vgpu_group,
NULL,
};
static const struct mdev_parent_ops intel_vgpu_ops = {
.supported_type_groups = intel_vgpu_type_groups,
.mdev_attr_groups = intel_vgpu_groups,
.create = intel_vgpu_create,
.remove = intel_vgpu_remove,