From: Gustavo Padovan <gustavo@padovan.org>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
dri-devel@lists.freedesktop.org,
"Daniel Stone" <daniels@collabora.com>,
"Arve Hjønnevåg" <arve@android.com>,
"Riley Andrews" <riandrews@android.com>,
"Daniel Vetter" <daniel.vetter@ffwll.ch>,
"Rob Clark" <robdclark@gmail.com>,
"Greg Hackmann" <ghackmann@google.com>,
"John Harrison" <John.C.Harrison@Intel.com>,
"Gustavo Padovan" <gustavo.padovan@collabora.co.uk>
Subject: Re: [PATCH v2 01/11] dma-buf/sync_file: de-stage sync_file
Date: Wed, 27 Jan 2016 15:03:13 -0200 [thread overview]
Message-ID: <20160127170313.GC3773@joana> (raw)
In-Reply-To: <56A8D4A7.1070409@linux.intel.com>
Hi Maarten,
2016-01-27 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>:
> Hey,
>
> Op 27-01-16 om 14:30 schreef Gustavo Padovan:
> > From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> >
> > sync_file is useful to connect one or more fences to the file. The file is
> > used by userspace to track fences.
> >
> > Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> >
> Is there a value in keeping the abi unchanged?
> If not, then Documentation/ioctl/botching-up-ioctls.txt is worth a read.
None from me. I'll look where we can improve the ABI.
>
> Looking at the patch, it seems you kept SYNC_IOC_WAIT, won't it be better to remove it, and only support waiting with polling?
> The code for polling should already work.
Sure, that makes sense for me.
>
> It's very unclear what format @driver_data has. I kept it for compatibility with android, but it's not clear to me how a userspace consumer would print it.
> Is there a usecase for this, or could it be removed from fence and sync_file?
I don't have any usecase for this. I'd say we remove it for now and if
someone needs this in the future we can talk about this again.
Gustavo
next prev parent reply other threads:[~2016-01-27 17:03 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 13:30 [PATCH v2 00/11] sync framework de-staging: part 2 - de-stage Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 01/11] dma-buf/sync_file: de-stage sync_file Gustavo Padovan
2016-01-27 14:31 ` Maarten Lankhorst
2016-01-27 17:03 ` Gustavo Padovan [this message]
2016-01-27 18:17 ` Emil Velikov
2016-01-27 20:25 ` Gustavo Padovan
2016-01-27 21:41 ` Greg Hackmann
2016-01-28 9:23 ` Daniel Vetter
2016-01-29 17:46 ` Greg Hackmann
2016-01-27 13:30 ` [PATCH v2 02/11] staging/android: store last signaled value on sync timeline Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 03/11] staging/android: remove .fill_driver_data() timeline ops Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 04/11] staging/android: remove .{fence,timeline}_value_str() from timeline_ops Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 05/11] staging/android: remove struct sync_timeline_ops Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 06/11] staging/android: remove sw_sync_timeline and sw_sync_pt Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 07/11] staging/android: remove sw_sync.[ch] files Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 08/11] staging/android: rename android_fence to timeline_fence Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 09/11] dma-buf/sync_timeline: de-stage sync_timeline Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 10/11] dma-buf/sync_file: bring debug back to sync file Gustavo Padovan
2016-01-27 13:30 ` [PATCH v2 11/11] dma-buf/sync_file: bring sync_dump() back Gustavo Padovan
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