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From: Dave Airlie <airlied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [rfc] drm sync objects (search for spock)
Date: Wed, 26 Apr 2017 13:28:28 +1000	[thread overview]
Message-ID: <20170426032833.1455-1-airlied@gmail.com> (raw)

Okay I've gone around the sun with these a few times, and
pretty much implemented what I said last week.

This is pretty much a complete revamp.

1. sync objects are self contained drm objects, they
have a file reference so can be passed between processes.

2. Added a sync object wait interface modelled on the vulkan
fence waiting API.

3. sync_file interaction is explicitly different than
opaque fd passing, you import a sync file state into an
existing syncobj, or create a new sync_file from an
existing syncobj. This means no touching the sync file code
at all. \o/

I haven't used rcu anywhere here, I've used xchg to swap
fence pointers in the hope that's safe. If this does need
rcu'ing I suggest we do it in a follow on patch to minimise
the review pain.

Dave.

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             reply	other threads:[~2017-04-26  3:28 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-26  3:28 Dave Airlie [this message]
     [not found] ` <20170426032833.1455-1-airlied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-04-26  3:28   ` [PATCH 1/5] drm: introduce sync objects Dave Airlie
     [not found]     ` <20170426032833.1455-2-airlied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-04-26  6:35       ` zhoucm1
2017-04-26  6:36       ` zhoucm1
2017-05-04  8:16       ` Chris Wilson
     [not found]         ` <20170504081633.GC17961-aII6DKEyn0pWYbfKqPwjAkR8Iwp7RQ6xAL8bYrjMMd8@public.gmane.org>
2017-05-09  2:26           ` Dave Airlie
     [not found]             ` <CAPM=9tzzn69_89nRpp3L3Y_qzd6AWg_aZ4PFF3twJg0gV0K8Fg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-05-09  9:17               ` Chris Wilson
2017-05-09 22:06               ` Jason Ekstrand
2017-05-09 14:56       ` Sean Paul
2017-04-26  3:28   ` [PATCH 2/5] drm/syncobj: add sync obj wait interface Dave Airlie
     [not found]     ` <20170426032833.1455-3-airlied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-05-04  8:22       ` Chris Wilson
2017-04-26  3:28   ` [PATCH 3/5] drm/syncobj: add sync_file interaction Dave Airlie
2017-04-26  3:28   ` [PATCH 4/5] amdgpu/cs: split out fence dependency checking Dave Airlie
     [not found]     ` <20170426032833.1455-5-airlied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-04-26  6:53       ` zhoucm1
2017-04-26  8:45   ` [rfc] drm sync objects (search for spock) Christian König
     [not found]     ` <373f3919-2f52-44c0-89b9-0c10b7b7bed4-ANTagKRnAhcb1SvskN2V4Q@public.gmane.org>
2017-04-26  9:57       ` Dave Airlie
     [not found]         ` <CAPM=9tz_S1Y87PxFTw_+SM2f+g9hUvFviKtb9xR=2xLpSCjEAA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-26 14:57           ` Christian König
2017-05-09 22:23             ` Jason Ekstrand
2017-04-26  3:28 ` [PATCH 5/5] amdgpu: use drm sync objects for shared semaphores (v4) Dave Airlie

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