From: Gustavo Padovan <gustavo@padovan.org>
To: linux-media@vger.kernel.org
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
Shuah Khan <shuahkh@osg.samsung.com>,
Pawel Osciak <pawel@osciak.com>,
Alexandre Courbot <acourbot@chromium.org>,
Sakari Ailus <sakari.ailus@iki.fi>,
Brian Starkey <brian.starkey@arm.com>,
Thierry Escande <thierry.escande@collabora.com>,
linux-kernel@vger.kernel.org,
Gustavo Padovan <gustavo.padovan@collabora.com>
Subject: [PATCH v7 0/6] V4L2 Explicit Synchronization
Date: Wed, 10 Jan 2018 14:07:26 -0200 [thread overview]
Message-ID: <20180110160732.7722-1-gustavo@padovan.org> (raw)
From: Gustavo Padovan <gustavo.padovan@collabora.com>
Hi,
v7 bring a fix for a crash when not using fences and a uAPI fix.
I've done a bit more of testing on it and also measured some
performance. On a intel laptop a DRM<->V4L2 pipeline with fences is
runnning twice as faster than the same pipeline with no fences.
For more details on how fences work refer to patch 6 in this series.
The test tools I've been using are:
https://gitlab.collabora.com/padovan/drm-v4l2-test
https://gitlab.collabora.com/padovan/v4l2-fences-test
Please review,
Gustavo
Gustavo Padovan (6):
[media] vb2: add is_unordered callback for drivers
[media] v4l: add 'unordered' flag to format description ioctl
[media] vb2: add explicit fence user API
[media] vb2: add in-fence support to QBUF
[media] vb2: add out-fence support to QBUF
[media] v4l: Document explicit synchronization behavior
Documentation/media/uapi/v4l/buffer.rst | 15 ++
Documentation/media/uapi/v4l/vidioc-enum-fmt.rst | 3 +
Documentation/media/uapi/v4l/vidioc-qbuf.rst | 47 ++++-
Documentation/media/uapi/v4l/vidioc-querybuf.rst | 9 +-
drivers/media/common/videobuf/videobuf2-core.c | 253 +++++++++++++++++++++--
drivers/media/common/videobuf/videobuf2-v4l2.c | 51 ++++-
drivers/media/v4l2-core/Kconfig | 33 +++
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 4 +-
include/media/videobuf2-core.h | 41 +++-
include/uapi/linux/videodev2.h | 8 +-
10 files changed, 437 insertions(+), 27 deletions(-)
--
2.14.3
next reply other threads:[~2018-01-10 16:09 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-10 16:07 Gustavo Padovan [this message]
2018-01-10 16:07 ` [PATCH v7 1/6] [media] vb2: add is_unordered callback for drivers Gustavo Padovan
2018-01-12 11:57 ` Hans Verkuil
2018-01-15 7:11 ` Alexandre Courbot
2018-01-15 12:01 ` Gustavo Padovan
2018-01-15 12:14 ` Hans Verkuil
2018-01-15 17:55 ` Gustavo Padovan
2018-01-16 2:35 ` Alexandre Courbot
2018-01-10 16:07 ` [PATCH v7 2/6] [media] v4l: add 'unordered' flag to format description ioctl Gustavo Padovan
2018-01-12 12:05 ` Hans Verkuil
2018-01-10 16:07 ` [PATCH v7 3/6] [media] vb2: add explicit fence user API Gustavo Padovan
2018-01-12 12:15 ` Hans Verkuil
2018-01-12 12:20 ` Hans Verkuil
2018-01-10 16:07 ` [PATCH v7 4/6] [media] vb2: add in-fence support to QBUF Gustavo Padovan
2018-01-12 13:46 ` Hans Verkuil
2018-01-18 17:38 ` Gustavo Padovan
2018-01-10 16:07 ` [PATCH v7 5/6] [media] vb2: add out-fence " Gustavo Padovan
2018-01-12 14:05 ` Hans Verkuil
2018-01-19 13:12 ` Gustavo Padovan
2018-01-15 7:12 ` Alexandre Courbot
2018-01-19 13:43 ` Gustavo Padovan
2018-01-10 16:07 ` [PATCH v7 6/6] [media] v4l: Document explicit synchronization behavior Gustavo Padovan
2018-01-12 14:48 ` Hans Verkuil
2018-01-10 16:44 ` [PATCH v7 0/6] V4L2 Explicit Synchronization Nicolas Dufresne
2018-01-10 17:11 ` Gustavo Padovan
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