From: Chia-I Wu <olvaffe@gmail.com>
To: Jason Ekstrand <jason@jlekstrand.net>
Cc: "Daniel Stone" <daniels@collabora.com>,
"Christian König" <christian.koenig@amd.com>,
"Michel Dänzer" <michel@daenzer.net>,
"ML dri-devel" <dri-devel@lists.freedesktop.org>,
wayland <wayland-devel@lists.freedesktop.org>,
"Bas Nieuwenhuizen" <bas@basnieuwenhuizen.nl>,
"Dave Airlie" <airlied@redhat.com>,
mesa-dev <mesa-dev@lists.freedesktop.org>,
intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 0/7] dma-buf: Add an API for exporting sync files (v11)
Date: Thu, 10 Jun 2021 13:10:56 -0700 [thread overview]
Message-ID: <CAPaKu7Ssizz2_A8cy12G544_uCGxWuMw8v54vSusF77SwD_yiw@mail.gmail.com> (raw)
In-Reply-To: <20210525211753.1086069-1-jason@jlekstrand.net>
On Tue, May 25, 2021 at 2:18 PM Jason Ekstrand <jason@jlekstrand.net> wrote:
> Modern userspace APIs like Vulkan are built on an explicit
> synchronization model. This doesn't always play nicely with the
> implicit synchronization used in the kernel and assumed by X11 and
> Wayland. The client -> compositor half of the synchronization isn't too
> bad, at least on intel, because we can control whether or not i915
> synchronizes on the buffer and whether or not it's considered written.
We might have an important use case for this half, for virtio-gpu and Chrome OS.
When the guest compositor acts as a proxy to connect guest apps to the
host compositor, implicit fencing requires the guest compositor to do
a wait before forwarding the buffer to the host compositor. With this
patch, the guest compositor can extract the dma-fence from the buffer,
and if the fence is a virtio-gpu fence, forward both the fence and the
buffer to the host compositor. It will allow us to convert a
guest-side wait into a host-side wait.
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
WARNING: multiple messages have this Message-ID (diff)
From: Chia-I Wu <olvaffe@gmail.com>
To: Jason Ekstrand <jason@jlekstrand.net>
Cc: "Daniel Stone" <daniels@collabora.com>,
"Christian König" <christian.koenig@amd.com>,
"Michel Dänzer" <michel@daenzer.net>,
"ML dri-devel" <dri-devel@lists.freedesktop.org>,
wayland <wayland-devel@lists.freedesktop.org>,
"Dave Airlie" <airlied@redhat.com>,
mesa-dev <mesa-dev@lists.freedesktop.org>,
intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 0/7] dma-buf: Add an API for exporting sync files (v11)
Date: Thu, 10 Jun 2021 13:10:56 -0700 [thread overview]
Message-ID: <CAPaKu7Ssizz2_A8cy12G544_uCGxWuMw8v54vSusF77SwD_yiw@mail.gmail.com> (raw)
In-Reply-To: <20210525211753.1086069-1-jason@jlekstrand.net>
On Tue, May 25, 2021 at 2:18 PM Jason Ekstrand <jason@jlekstrand.net> wrote:
> Modern userspace APIs like Vulkan are built on an explicit
> synchronization model. This doesn't always play nicely with the
> implicit synchronization used in the kernel and assumed by X11 and
> Wayland. The client -> compositor half of the synchronization isn't too
> bad, at least on intel, because we can control whether or not i915
> synchronizes on the buffer and whether or not it's considered written.
We might have an important use case for this half, for virtio-gpu and Chrome OS.
When the guest compositor acts as a proxy to connect guest apps to the
host compositor, implicit fencing requires the guest compositor to do
a wait before forwarding the buffer to the host compositor. With this
patch, the guest compositor can extract the dma-fence from the buffer,
and if the fence is a virtio-gpu fence, forward both the fence and the
buffer to the host compositor. It will allow us to convert a
guest-side wait into a host-side wait.
next prev parent reply other threads:[~2021-06-10 20:11 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-25 21:17 [Intel-gfx] [PATCH 0/7] dma-buf: Add an API for exporting sync files (v11) Jason Ekstrand
2021-05-25 21:17 ` Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] [PATCH 1/7] dma-buf: Add dma_fence_array_for_each (v2) Jason Ekstrand
2021-05-25 21:17 ` Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] [PATCH 2/7] dma-buf: Rename dma_resv helpers from _rcu to _unlocked (v2) Jason Ekstrand
2021-05-25 21:17 ` Jason Ekstrand
2021-05-26 10:57 ` [Intel-gfx] " Christian König
2021-05-26 10:57 ` Christian König
2021-05-27 10:39 ` [Intel-gfx] " Daniel Vetter
2021-05-27 10:39 ` Daniel Vetter
2021-05-27 11:58 ` [Intel-gfx] " Christian König
2021-05-27 11:58 ` Christian König
2021-05-27 13:21 ` [Intel-gfx] " Daniel Vetter
2021-05-27 13:21 ` Daniel Vetter
2021-05-27 13:25 ` [Intel-gfx] " Daniel Vetter
2021-05-27 13:25 ` Daniel Vetter
2021-05-27 13:41 ` [Intel-gfx] " Christian König
2021-05-27 13:41 ` Christian König
2021-06-01 14:34 ` [Intel-gfx] " Daniel Vetter
2021-06-01 14:34 ` Daniel Vetter
2021-06-01 17:27 ` [Intel-gfx] " Christian König
2021-06-01 17:27 ` Christian König
2021-06-01 17:29 ` [Intel-gfx] " Christian König
2021-06-01 17:29 ` Christian König
2021-05-25 21:17 ` [PATCH 3/7] dma-buf: Add dma_resv_get_singleton_unlocked (v5) Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] " Jason Ekstrand
2021-05-25 21:17 ` [PATCH 4/7] dma-buf: Document DMA_BUF_IOCTL_SYNC Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] " Jason Ekstrand
2021-05-27 10:38 ` Daniel Vetter
2021-05-27 10:38 ` Daniel Vetter
2021-05-27 11:12 ` [Intel-gfx] " Sumit Semwal
2021-05-27 11:12 ` Sumit Semwal
2021-06-10 20:57 ` [Intel-gfx] " Jason Ekstrand
2021-06-10 20:57 ` Jason Ekstrand
2021-05-25 21:17 ` [PATCH 5/7] dma-buf: Add an API for exporting sync files (v11) Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] " Jason Ekstrand
2021-05-26 11:02 ` Christian König
2021-05-26 11:02 ` Christian König
2021-05-26 11:31 ` [Intel-gfx] " Daniel Stone
2021-05-26 11:31 ` Daniel Stone
2021-05-26 12:46 ` Christian König
2021-05-26 12:46 ` Christian König
2021-05-26 13:12 ` Daniel Stone
2021-05-26 13:12 ` Daniel Stone
2021-05-26 13:23 ` Christian König
2021-05-26 13:23 ` Christian König
2021-05-27 10:33 ` Daniel Vetter
2021-05-27 10:33 ` Daniel Vetter
2021-05-27 10:48 ` Simon Ser
2021-05-27 10:48 ` Simon Ser
2021-05-27 12:01 ` Christian König
2021-05-27 12:01 ` Christian König
[not found] ` <CAOFGe95Zdn8P3=sOT0HkE9_+ac70g36LxpmLOyR2bKTTeS-xvQ@mail.gmail.com>
[not found] ` <fef50d81-399a-af09-1d13-de4db1b3fab8@amd.com>
2021-05-27 15:39 ` Jason Ekstrand
2021-05-27 15:39 ` Jason Ekstrand
2021-05-25 21:17 ` [PATCH 6/7] RFC: dma-buf: Add an extra fence to dma_resv_get_singleton_unlocked Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] " Jason Ekstrand
2021-05-25 21:17 ` [PATCH 7/7] RFC: dma-buf: Add an API for importing sync files (v7) Jason Ekstrand
2021-05-25 21:17 ` [Intel-gfx] " Jason Ekstrand
2021-05-26 17:09 ` Daniel Vetter
2021-05-26 17:09 ` Daniel Vetter
2021-05-25 21:44 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for dma-buf: Add an API for exporting sync files (v11) Patchwork
2021-05-25 21:46 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-05-25 22:14 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-05-26 4:20 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-06-10 20:10 ` Chia-I Wu [this message]
2021-06-10 20:10 ` [PATCH 0/7] " Chia-I Wu
2021-06-10 20:26 ` [Intel-gfx] " Jason Ekstrand
2021-06-10 20:26 ` Jason Ekstrand
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