[PATCH] drm/i915/gvt: Add mdev device attribute group
Zhenyu Wang
zhenyuw at linux.intel.com
Wed Mar 8 08:42:12 UTC 2017
On 2017.03.08 16:19:48 +0800, Zhenyu Wang wrote:
> This adds initial attribute group for mdev to hold vGPU related
> for each mdev device, currently just vGPU id is shown.
>
> Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>
> ---
As this will try to create gvt specific attrs directory for each mdev,
named for "vgpu" now, if anyone prefers other name like "intel_vgpu"?
> drivers/gpu/drm/i915/gvt/kvmgt.c | 32 ++++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
> index 84d801638ede..1ce4c034d02b 100644
> --- a/drivers/gpu/drm/i915/gvt/kvmgt.c
> +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
> @@ -1144,8 +1144,40 @@ 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 = "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,
>
> --
> 2.11.0
>
> _______________________________________________
> intel-gvt-dev mailing list
> intel-gvt-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gvt-dev
--
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