> -----Original Message----- > From: intel-gvt-dev [mailto:intel-gvt-dev-bounces@xxxxxxxxxxxxxxxxxxxxx] On > Behalf Of Gerd Hoffmann > Sent: Thursday, June 27, 2019 2:21 PM > To: Zhang, Tina <tina.zhang@xxxxxxxxx> > Cc: Tian, Kevin <kevin.tian@xxxxxxxxx>; kvm@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; zhenyuw@xxxxxxxxxxxxxxx; Yuan, Hang > <hang.yuan@xxxxxxxxx>; alex.williamson@xxxxxxxxxx; Lv, Zhiyuan > <zhiyuan.lv@xxxxxxxxx>; intel-gvt-dev@xxxxxxxxxxxxxxxxxxxxx; Wang, Zhi A > <zhi.a.wang@xxxxxxxxx> > 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 <tina.zhang@xxxxxxxxx> > > --- > > 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 > intel-gvt-dev@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gvt-dev
