.intel.com;
> zhen...@linux.intel.com; Lv, Zhiyuan ; Wang, Zhi A
> ; Tian, Kevin ; dan...@ffwll.ch;
> kwankh...@nvidia.com
> Cc: Daniel Vetter ; intel-...@lists.freedesktop.org;
> intel-gvt-...@lists.freedesktop.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v16 5/6] vfio: AB
Hi,
> > Add a head field here? People asked @ kvm forum about multihead
> > support.
> > Even if the initial driver version doesn't support it we could add
> > a field so it
> > becomes easier to add it at some point in the future.
> >
> > Probing for available heads could be done with the PRO
.intel.com;
> zhen...@linux.intel.com; Lv, Zhiyuan ; Wang, Zhi A
> ; Tian, Kevin ; dan...@ffwll.ch;
> kwankh...@nvidia.com
> Cc: Daniel Vetter ; intel-...@lists.freedesktop.org;
> intel-gvt-...@lists.freedesktop.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v16 5/6] vfio: AB
tel.com; linux-kernel@vger.kernel.org;
> zhen...@linux.intel.com; ch...@chris-wilson.co.uk; kwankh...@nvidia.com;
> Lv, Zhiyuan ; dan...@ffwll.ch; intel-gvt-
> d...@lists.freedesktop.org; Wang, Zhi A
> Subject: Re: [PATCH v16 5/6] vfio: ABI for mdev display dma-buf operation
>
> On Mon, 06
On Mon, 06 Nov 2017 10:05:34 +0100
Gerd Hoffmann wrote:
> Hi,
>
> > > I thought we had agreed to make this behave similar to
> > > VFIO_GROUP_GET_DEVICE_FD, the ioctl would take a __u32 dmabuf_id
> > > and
> > > return the file descriptor as the ioctl return value. Thanks,
> >
> > If we fo
Hi,
> > I thought we had agreed to make this behave similar to
> > VFIO_GROUP_GET_DEVICE_FD, the ioctl would take a __u32 dmabuf_id
> > and
> > return the file descriptor as the ioctl return value. Thanks,
>
> If we follow VFIO_GROUP_GET_DEVICE_FD, we would lose flags
> functionality.
> Zhi an
Hi,
> +/**
> + * VFIO_DEVICE_QUERY_GFX_PLANE - _IOW(VFIO_TYPE, VFIO_BASE + 14,
> + *struct
> vfio_device_query_gfx_plane)
> + *
> + * Set the drm_plane_type and flags, then retrieve the gfx plane
> info.
> + *
> + * flags supported:
> + * - VFIO_GFX_PLANE_TYPE
esktop.org; joonas.lahti...@linux.intel.com; linux-
> ker...@vger.kernel.org; zhen...@linux.intel.com; ch...@chris-wilson.co.uk;
> kwankh...@nvidia.com; Lv, Zhiyuan ; dan...@ffwll.ch;
> intel-gvt-...@lists.freedesktop.org; Wang, Zhi A ;
> kra...@redhat.com
> Subject: Re: [PATCH v16 5/6] vfio:
On Mon, 6 Nov 2017 10:19:17 +0800
Tina Zhang wrote:
> Add VFIO_DEVICE_QUERY_GFX_PLANE ioctl command to let user query and get
> a plane and its related information. So far, two types of buffers are
> supported: buffers based on dma-buf and buffers based on region.
>
> This ioctl can be invoked
Add VFIO_DEVICE_QUERY_GFX_PLANE ioctl command to let user query and get
a plane and its related information. So far, two types of buffers are
supported: buffers based on dma-buf and buffers based on region.
This ioctl can be invoked with:
1) either DMABUF or REGION flag. Vendor driver returns a pl
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