From: Gerd Hoffmann <kraxel@redhat.com>
To: "Chen, Xiaoguang" <xiaoguang.chen@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>,
"Tian, Kevin" <kevin.tian@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"zhenyuw@linux.intel.com" <zhenyuw@linux.intel.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 6/6] drm/i915/gvt: support QEMU getting the dmabuf
Date: Fri, 19 May 2017 10:57:02 +0200 [thread overview]
Message-ID: <1495184222.627.46.camel@redhat.com> (raw)
In-Reply-To: <DD379D741F77464281CE7ED1CD7C12DE7065DDE5@SHSMSX101.ccr.corp.intel.com>
Hi,
> >We could also do it the other way around: Instead of having the kernel returning
>
> >the plane description userspace could pass it in, and the kernel throws -EINVAL in
>
> >case it doesn't match due to things having changed meanwhile.
>
> Or just return a dmabuf based on the current plane ?
If gvt is able to hand out dma-bufs for inactive planes, then yes, we
can do this. Have one ioctl where we pass in the plane id, get back a
plane description struct, and another where we pass in the plane
description struct and get back a dma-buf fd.
cheers,
Gerd
next prev parent reply other threads:[~2017-05-19 8:57 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 9:35 [RFC PATCH 0/6] drm/i915/gvt: dma-buf support for GVT-g Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-04-28 9:35 ` [RFC PATCH 1/6] drm/i915/gvt: extend the GVT-g architecture to support vfio device region Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-04-28 9:35 ` [RFC PATCH 2/6] drm/i915/gvt: OpRegion support for GVT-g Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-04-28 9:35 ` [RFC PATCH 3/6] drm/i915/gvt: framebuffer decoder " Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-04-28 9:35 ` [RFC PATCH 4/6] drm/i915: export i915 dmabuf_ops Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-04-28 9:35 ` [RFC PATCH 5/6] drm/i915/gvt: dmabuf support for GVT-g Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-04-28 10:08 ` [Intel-gfx] " Chris Wilson
2017-04-28 10:08 ` Chris Wilson
2017-05-02 7:40 ` [Intel-gfx] " Chen, Xiaoguang
2017-05-02 7:40 ` Chen, Xiaoguang
2017-05-04 3:12 ` [Intel-gfx] " Chen, Xiaoguang
2017-05-04 3:12 ` Chen, Xiaoguang
2017-05-02 9:37 ` [Intel-gfx] " Gerd Hoffmann
2017-05-02 9:37 ` Gerd Hoffmann
2017-04-28 9:35 ` [RFC PATCH 6/6] drm/i915/gvt: support QEMU getting the dmabuf Xiaoguang Chen
2017-04-28 9:35 ` Xiaoguang Chen
2017-05-02 9:50 ` Gerd Hoffmann
2017-05-02 9:50 ` Gerd Hoffmann
2017-05-03 1:39 ` Chen, Xiaoguang
2017-05-03 1:39 ` Chen, Xiaoguang
2017-05-04 3:09 ` Chen, Xiaoguang
2017-05-04 3:09 ` Chen, Xiaoguang
2017-05-04 16:08 ` Alex Williamson
2017-05-04 16:08 ` Alex Williamson
2017-05-05 6:55 ` Gerd Hoffmann
2017-05-05 6:55 ` Gerd Hoffmann
2017-05-05 15:11 ` Alex Williamson
2017-05-05 15:11 ` Alex Williamson
2017-05-11 8:45 ` Chen, Xiaoguang
2017-05-11 8:45 ` Chen, Xiaoguang
2017-05-11 13:27 ` Gerd Hoffmann
2017-05-11 13:27 ` Gerd Hoffmann
2017-05-11 15:45 ` Alex Williamson
2017-05-11 15:45 ` Alex Williamson
2017-05-12 2:12 ` Chen, Xiaoguang
2017-05-12 2:12 ` Chen, Xiaoguang
2017-05-12 2:58 ` Alex Williamson
2017-05-12 2:58 ` Alex Williamson
2017-05-12 3:52 ` Chen, Xiaoguang
2017-05-12 3:52 ` Chen, Xiaoguang
2017-05-12 9:12 ` Gerd Hoffmann
2017-05-12 9:12 ` Gerd Hoffmann
2017-05-12 16:38 ` Alex Williamson
2017-05-12 16:38 ` Alex Williamson
2017-05-15 3:36 ` Chen, Xiaoguang
2017-05-15 3:36 ` Chen, Xiaoguang
2017-05-15 17:44 ` Alex Williamson
2017-05-15 17:44 ` Alex Williamson
2017-05-16 10:16 ` Chen, Xiaoguang
2017-05-17 21:43 ` Alex Williamson
2017-05-18 1:51 ` Chen, Xiaoguang
2017-05-18 14:56 ` Alex Williamson
2017-05-19 6:23 ` Chen, Xiaoguang
2017-05-19 8:04 ` Gerd Hoffmann
2017-05-19 8:17 ` Chen, Xiaoguang
2017-05-19 8:57 ` Gerd Hoffmann [this message]
2017-05-19 9:14 ` Chen, Xiaoguang
2017-05-19 10:51 ` Gerd Hoffmann
2017-05-18 6:22 ` Gerd Hoffmann
2017-05-12 6:56 ` Chen, Xiaoguang
2017-05-12 6:56 ` Chen, Xiaoguang
2017-05-12 17:04 ` Alex Williamson
2017-05-12 17:04 ` Alex Williamson
2017-04-28 11:35 ` ✓ Fi.CI.BAT: success for drm/i915/gvt: dma-buf support for GVT-g Patchwork
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