> -----Original Message----- > From: intel-gvt-dev [mailto:[email protected]] On > Behalf Of Gerd Hoffmann > Sent: Thursday, June 27, 2019 2:21 PM > To: Zhang, Tina <[email protected]> > Cc: Tian, Kevin <[email protected]>; [email protected]; linux- > [email protected]; [email protected]; Yuan, Hang > <[email protected]>; [email protected]; Lv, Zhiyuan > <[email protected]>; [email protected]; Wang, Zhi A > <[email protected]> > Subject: Re: [RFC PATCH v3 2/4] vfio: Introduce vGPU display irq type > > On Thu, Jun 27, 2019 at 11:38:00AM +0800, Tina Zhang wrote: > > Introduce vGPU specific irq type VFIO_IRQ_TYPE_GFX, and > > VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ as the subtype for vGPU display > > > > Signed-off-by: Tina Zhang <[email protected]> > > --- > > include/uapi/linux/vfio.h | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h > > index 600784acc4ac..c3e9c821a5cb 100644 > > --- a/include/uapi/linux/vfio.h > > +++ b/include/uapi/linux/vfio.h > > @@ -465,6 +465,9 @@ struct vfio_irq_info_cap_type { > > __u32 subtype; /* type specific */ > > }; > > > > +#define VFIO_IRQ_TYPE_GFX (1) > > +#define VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ (1) > > VFIO_IRQ_TYPE_GFX_VBLANK ? VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ is proposed to cover all the display related events. In this version, we only use VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ to deliver vblank event. However, we might still want to reserve seat for other display event, like page flip event. Thanks.
BR, Tina > > cheers, > Gerd > > _______________________________________________ > intel-gvt-dev mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gvt-dev
