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| author |   Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-03-16 18:06:39 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-03-29 15:28:51 +0800 |
| commit | 7a7a65617b84912287ec4c6ed7b85f9418c7304b (patch) | |
| tree | df55e24e5c3ab75bb160288b71d1b7c5d924375c /drivers/gpu/drm/i915/gvt/kvmgt.c | |
| parent | drm/i915/gvt: make dpcd_fix_data supports DP1.2 (diff) | |
| download | linux-dev-7a7a65617b84912287ec4c6ed7b85f9418c7304b.tar.xz linux-dev-7a7a65617b84912287ec4c6ed7b85f9418c7304b.zip | |
drm/i915/gvt: Add mdev device attribute group
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>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/kvmgt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/kvmgt.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 1ea3eb270de8..c7e7c9377cef 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -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, |