From: "Zhang, Tina" <tina.zhang@intel.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: "Tian, Kevin" <kevin.tian@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"zhenyuw@linux.intel.com" <zhenyuw@linux.intel.com>,
"Yuan, Hang" <hang.yuan@intel.com>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"Lv, Zhiyuan" <zhiyuan.lv@intel.com>,
"intel-gvt-dev@lists.freedesktop.org"
<intel-gvt-dev@lists.freedesktop.org>,
"Wang, Zhi A" <zhi.a.wang@intel.com>
Subject: RE: [RFC PATCH v3 2/4] vfio: Introduce vGPU display irq type
Date: Thu, 27 Jun 2019 09:11:40 +0000 [thread overview]
Message-ID: <237F54289DF84E4997F34151298ABEBC876836C6@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <20190627062043.63wpwgefbsnackbg@sirius.home.kraxel.org>
> -----Original Message-----
> From: intel-gvt-dev [mailto:intel-gvt-dev-bounces@lists.freedesktop.org] On
> Behalf Of Gerd Hoffmann
> Sent: Thursday, June 27, 2019 2:21 PM
> To: Zhang, Tina <tina.zhang@intel.com>
> Cc: Tian, Kevin <kevin.tian@intel.com>; kvm@vger.kernel.org; linux-
> kernel@vger.kernel.org; zhenyuw@linux.intel.com; Yuan, Hang
> <hang.yuan@intel.com>; alex.williamson@redhat.com; Lv, Zhiyuan
> <zhiyuan.lv@intel.com>; intel-gvt-dev@lists.freedesktop.org; Wang, Zhi A
> <zhi.a.wang@intel.com>
> 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@intel.com>
> > ---
> > 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@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gvt-dev
next prev parent reply other threads:[~2019-06-27 9:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-27 3:37 [RFC PATCH v3 0/4] Deliver vGPU display vblank event to userspace Tina Zhang
2019-06-27 3:37 ` [RFC PATCH v3 1/4] vfio: Define device specific irq type capability Tina Zhang
2019-06-27 4:07 ` Alex Williamson
2019-06-27 8:40 ` Zhang, Tina
2019-06-27 6:19 ` Gerd Hoffmann
2019-06-27 8:55 ` Zhang, Tina
2019-06-27 10:20 ` Gerd Hoffmann
2019-06-27 3:38 ` [RFC PATCH v3 2/4] vfio: Introduce vGPU display irq type Tina Zhang
2019-06-27 6:20 ` Gerd Hoffmann
2019-06-27 9:11 ` Zhang, Tina [this message]
2019-06-27 3:38 ` [RFC PATCH v3 3/4] drm/i915/gvt: Register vGPU display vblank irq Tina Zhang
2019-06-27 3:38 ` [RFC PATCH v3 4/4] drm/i915/gvt: Deliver vGPU vblank event to userspace Tina Zhang
2019-06-27 6:22 ` [RFC PATCH v3 0/4] Deliver vGPU display " Gerd Hoffmann
2019-06-27 8:44 ` Zhang, Tina
2019-06-27 10:31 ` Gerd Hoffmann
2019-06-28 3:21 ` Zhenyu Wang
2019-06-28 5:43 ` Gerd Hoffmann
2019-06-28 7:23 ` Zhenyu Wang
2019-06-28 8:44 ` Zhang, Tina
2019-06-28 12:43 ` Zhang, Tina
2019-07-01 3:09 ` Zhenyu Wang
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