that also causes serialisation between threads.
>
> Signed-off-by: Chris Wilson
> Cc: Sumit Semwal
> Cc: Gustavo Padovan
> Cc: linux-media@vger.kernel.org
> Cc: dri-de...@lists.freedesktop.org
> Cc: linaro-mm-...@lists.linaro.org
> ---
> drivers/dma-buf/sync_file.c | 3 ++-
&g
t; declared and don't need a declaration, but can be made static.
> So this patch marks it 'static'.
>
> Signed-off-by: Baoyou Xie
> ---
> drivers/dma-buf/sw_sync.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks for finding this.
Reviewed-by: Gustavo
Hi Baoyou,
2016-09-22 Greg Kroah-Hartman :
> On Tue, Sep 20, 2016 at 06:23:33PM +0530, Sumit Semwal wrote:
> > Hi Baoyou,
> >
> > On 20 September 2016 at 16:43, Gustavo Padovan wrote:
> > > 2016-09-18 Baoyou Xie :
> > >
> > >> We get 1 warnin
Hi Alex,
2017-12-15 Alexandre Courbot :
> Set the necessary ops for supporting requests in vim2m.
>
> Signed-off-by: Alexandre Courbot
> ---
> drivers/media/platform/vim2m.c | 22 ++
> 1 file changed, 22 insertions(+)
>
> diff --git a/drivers/media/platform/vim2m.c b/drive
2017-12-21 Mauro Carvalho Chehab :
> Em Mon, 11 Dec 2017 16:27:35 -0200
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Hi,
> >
> > One more iteration of the explicit fences patches, please refer
> > to the previous version[1] for
2017-12-21 Mauro Carvalho Chehab :
> Em Mon, 11 Dec 2017 16:27:36 -0200
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Explicit synchronization benefits a lot from ordered queues, they fit
> > better in a pipeline with DRM for example so cr
2017-12-21 Mauro Carvalho Chehab :
> Em Mon, 11 Dec 2017 16:27:38 -0200
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Turn the reserved2 field into fence_fd that we will use to send
> > an in-fence to the kernel and return an out-fence
2017-12-21 Mauro Carvalho Chehab :
> Em Mon, 11 Dec 2017 16:27:39 -0200
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Receive in-fence from userspace and add support for waiting on them
> > before queueing the buffer to the driver. Buffers
From: Gustavo Padovan
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
From: Gustavo Padovan
Receive in-fence from userspace and add support for waiting on them
before queueing the buffer to the driver. Buffers can't be queued to the
driver before its fences signal. And a buffer can't be queue to the driver
out of the order they were queued from users
From: Gustavo Padovan
If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create
an out_fence and send its fd to userspace on the fence_fd field as a
return arg for the QBUF call.
The fence is signaled on buffer_done(), when the job on the buffer is
finished.
v8:
- return 0
From: Gustavo Padovan
Explicit synchronization benefits a lot from ordered queues, they fit
better in a pipeline with DRM for example so create a opt-in way for
drivers notify videobuf2 that the queue is unordered.
Drivers don't need implement it if the queue is ordered.
Signed-off-by: Gu
From: Gustavo Padovan
For explicit synchronization it important for userspace to know if the
format being used by the driver can deliver the buffers back to userspace
in the same order they were queued with QBUF.
Ordered streams fits nicely in a pipeline with DRM for example, where
ordered
From: Gustavo Padovan
Turn the reserved2 field into fence_fd that we will use to send
an in-fence to the kernel and return an out-fence from the kernel to
userspace.
Two new flags were added, V4L2_BUF_FLAG_IN_FENCE, that should be used
when sending a fence to the kernel to be waited on, and
From: Gustavo Padovan
Add section to VIDIOC_QBUF about it
v5:
- Remove V4L2_CAP_ORDERED
- Add doc about V4L2_FMT_FLAG_UNORDERED
v4:
- Document ordering behavior for in-fences
- Document V4L2_CAP_ORDERED capability
- Remove doc about OUT_FENCE event
2018-01-10 Nicolas Dufresne :
> Le mercredi 10 janvier 2018 à 14:07 -0200, Gustavo Padovan a écrit :
> > 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
2018-01-15 Alexandre Courbot :
> On Thu, Jan 11, 2018 at 1:07 AM, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Explicit synchronization benefits a lot from ordered queues, they fit
> > better in a pipeline with DRM for example so create a opt-in way for
&
2018-01-15 Hans Verkuil :
> On 01/15/2018 01:01 PM, Gustavo Padovan wrote:
> > 2018-01-15 Alexandre Courbot :
> >
> >> On Thu, Jan 11, 2018 at 1:07 AM, Gustavo Padovan
> >> wrote:
> >>> From: Gustavo Padovan
> >>>
> >>>
Hi Hans,
2018-01-12 Hans Verkuil :
> On 01/10/18 17:07, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Receive in-fence from userspace and add support for waiting on them
> > before queueing the buffer to the driver. Buffers can't be queued to the
>
2018-01-12 Hans Verkuil :
> On 01/10/18 17:07, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create
> > an out_fence and send its fd to userspace on the fence_fd field as a
> > return ar
2018-01-15 Alexandre Courbot :
> On Thu, Jan 11, 2018 at 1:07 AM, Gustavo Padovan wrote:
> > /*
> > * vb2_start_streaming() - Attempt to start streaming.
> > * @q: videobuf2 queue
> > @@ -1489,18 +1562,16 @@ int vb2_core_qbuf(struct vb2_queue *q, unsign
From: Gustavo Padovan
The link was showing both VIDIOC_QBUF, VIDIOC_DQBUF while it should show
only VIDIOC_QBUF in this case.
Signed-off-by: Gustavo Padovan
---
Documentation/media/uapi/v4l/buffer.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/media/uapi
Hi Hans,
On Mon, 2018-05-07 at 14:07 +0200, Hans Verkuil wrote:
> On 04/05/18 22:06, Ezequiel Garcia wrote:
> > From: Gustavo Padovan
> >
> > Receive in-fence from userspace and add support for waiting on them
> > before queueing the buffer to the driver. Buffers
Hi Ezequiel,
On Wed, 2018-05-09 at 17:14 -0300, Ezequiel Garcia wrote:
> Change how dma_fence_add_callback() behaves, when the fence
> has error-signaled by the time it is being add. After this commit,
> dma_fence_add_callback() returns the fence error, if it
> has error-signaled before dma_fence_
ethencourt
> Reviewed-by: Javier Martinez Canillas
> ---
> Hi,
>
> Just resending this patch since it hasn't had any reviews in since
> March 21st.
>
> Thanks,
> Luis
>
> include/linux/fence.h | 2 ++
> 1 file changed, 2 insertions(+)
Reviewed-by: Gustav
Hi Mauro,
2017-06-08 Mauro Carvalho Chehab :
> Hi Gustavo,
>
> Em Wed, 24 May 2017 21:31:01 -0300
> Gustavo Padovan escreveu:
>
> > Hi all,
> >
> > I've been working on the v2 of this series, but I think I hit a blocker
> > when trying to cover t
2017-06-08 Shuah Khan :
> Hi Gustavo,
>
> On Thu, Jun 8, 2017 at 2:17 PM, Mauro Carvalho Chehab
> wrote:
> > Hi Gustavo,
> >
> > Em Wed, 24 May 2017 21:31:01 -0300
> > Gustavo Padovan escreveu:
> >
> >> Hi all,
> >>
> >> I&
From: Gustavo Padovan
In order to support explicit synchronization we need to divide
vb2_core_qbuf() in two parts, one to be executed before the fence
signals and another one to do the actual queueing of the buffer.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core/videobuf2-core.c
From: Gustavo Padovan
Turn the reserved2 field into fence_fd that we will use to send
an in-fence to the kernel and return an out-fence from the kernel to
userspace.
Two new flags were added, V4L2_BUF_FLAG_IN_FENCE, that should be used
when sending a fence to the kernel to be waited on, and
From: Gustavo Padovan
Receive in-fence from userspace and add support for waiting on them
before queueing the buffer to the driver. Buffers are only queued
to the driver once they are ready. A buffer is ready when its
in-fence signals.
v2:
- fix vb2_queue_or_prepare_buf() ret check
From: Gustavo Padovan
Instead of assigning the global v4l2 device, assign the specific device.
This was causing trouble when using using V4L2 events with vivid
devices. The device's queue should be the same we opened in userspace.
Signed-off-by: Gustavo Padovan
---
drivers/media/pla
From: Gustavo Padovan
Add a new event the userspace can subscribe to receive notifications
when a buffer is queued onto the driver. The event provides the index of
the queued buffer.
Signed-off-by: Gustavo Padovan
---
include/uapi/linux/videodev2.h | 6 ++
1 file changed, 6 insertions
From: Gustavo Padovan
For explicit synchronization (and soon for HAL3/Request API) we need
the v4l2-driver to guarantee the ordering which the buffer were queued
by userspace. This is already true for many drivers, but we never had
the need to say it.
Signed-off-by: Gustavo Padovan
From: Gustavo Padovan
Hi,
This adds support for Explicit Synchronization of shared buffers in V4L2.
It uses the Sync File Framework[1] as vector to communicate the fences
between kernel and userspace.
Explicit Synchronization allows us to control the synchronization of
shared buffers from
From: Gustavo Padovan
Call v4l2_ctrl_subscribe_event to subscribe to more events supported by
v4l.
Signed-off-by: Gustavo Padovan
---
drivers/media/usb/uvc/uvc_v4l2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc
From: Gustavo Padovan
Add vb2_setup_out_fence() and the needed members to struct vb2_buffer.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core/videobuf2-core.c | 31 +++
include/media/videobuf2-core.h | 5 +
2 files changed, 36 insertions
From: Javier Martinez Canillas
Add a videobuf2-fence.h header file that contains different helpers
for DMA buffer sharing explicit fence support in videobuf2.
Signed-off-by: Javier Martinez Canillas
Signed-off-by: Gustavo Padovan
---
include/media/videobuf2-fence.h | 49
From: Gustavo Padovan
Implement the needed pieces to let userspace subscribe for
V4L2_EVENT_BUF_QUEUED events. Videobuf2 will queue the event for the
DQEVENT ioctl.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core/v4l2-ctrls.c | 6 +-
drivers/media/v4l2-core/videobuf2
From: Gustavo Padovan
If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create
an out_fence for the buffer and return it to userspace on the fence_fd
field. It only works with ordered queues.
The fence is signaled on buffer_done(), when the job on the buffer is
finished.
v2: check
From: Gustavo Padovan
To enable vivid to be used with explicit synchronization we need
to mark its queues as ordered.
Signed-off-by: Gustavo Padovan
---
drivers/media/platform/vivid/vivid-core.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/media/platform/vivid/vivid-core.c
Hi Nicolas,
2017-06-16 Nicolas Dufresne :
> Le vendredi 16 juin 2017 à 16:39 +0900, Gustavo Padovan a écrit :
> > > From: Gustavo Padovan
> >
> > For explicit synchronization (and soon for HAL3/Request API) we need
> > the v4l2-driver to guarantee the orderin
https://github.com/0day-ci/linux/commits/Gustavo-Padovan/vb2-add-explicit-fence-user-API/20170618-210740
> base: git://linuxtv.org/media_tree.git master
> config: x86_64-allmodconfig (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>
Hi Mauro,
2017-06-30 Mauro Carvalho Chehab :
> Em Fri, 16 Jun 2017 16:39:06 +0900
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Receive in-fence from userspace and add support for waiting on them
> > before queueing the buffer to the drive
Hi Mauro,
2017-06-30 Mauro Carvalho Chehab :
> Em Fri, 16 Jun 2017 16:39:10 +0900
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Implement the needed pieces to let userspace subscribe for
> > V4L2_EVENT_BUF_QUEUED events. Videobuf2 will qu
Hi Mauro,
2017-06-30 Mauro Carvalho Chehab :
> Em Fri, 16 Jun 2017 16:39:03 +0900
> Gustavo Padovan escreveu:
>
> > From: Gustavo Padovan
> >
> > Hi,
> >
> > This adds support for Explicit Synchronization of shared buffers in V4L2.
> > It
2017-07-06 Hans Verkuil :
> On 06/16/17 09:39, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > In order to support explicit synchronization we need to divide
> > vb2_core_qbuf() in two parts, one to be executed before the fence
> > signals and another
2017-07-06 Hans Verkuil :
> On 07/03/17 20:16, Gustavo Padovan wrote:
> >>> @@ -1436,6 +1481,11 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned
> >>> int index, void *pb)
> >>> if (pb)
> >>> call_void_bufop(q, fill_user_bu
2017-07-06 Hans Verkuil :
> On 06/16/17 09:39, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Receive in-fence from userspace and add support for waiting on them
> > before queueing the buffer to the driver. Buffers are only queued
> > to the driver
2017-07-06 Hans Verkuil :
> On 06/16/17 09:39, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Receive in-fence from userspace and add support for waiting on them
> > before queueing the buffer to the driver. Buffers are only queued
> > to the driver
2017-07-07 Hans Verkuil :
> On 07/07/2017 04:00 AM, Gustavo Padovan wrote:
> > 2017-07-06 Hans Verkuil :
> >
> > > On 06/16/17 09:39, Gustavo Padovan wrote:
> > > > From: Gustavo Padovan
> > > >
> > > > Receive in-fence from userspace
2017-07-07 Hans Verkuil :
> On 07/07/2017 03:53 AM, Gustavo Padovan wrote:
> > >
> > > > help
> > > > If you want to use Webcams, Video grabber devices and/or TV
> > > > devices
> > > > enable this option
2017-07-07 Shuah Khan :
> On 06/16/2017 01:39 AM, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Instead of assigning the global v4l2 device, assign the specific device.
> > This was causing trouble when using using V4L2 events with vivid
> > devices.
2017-07-07 Shuah Khan :
> On 06/16/2017 01:39 AM, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Call v4l2_ctrl_subscribe_event to subscribe to more events supported by
> > v4l.
> >
> > Signed-off-by: Gustavo Padovan
> > ---
> >
2017-07-06 Hans Verkuil :
> On 06/30/17 14:04, Mauro Carvalho Chehab wrote:
> > Em Fri, 16 Jun 2017 16:39:10 +0900
> > Gustavo Padovan escreveu:
> >
> >> From: Gustavo Padovan
> >>
> >> Implement the needed pieces to let userspace subscribe for
&
2017-07-07 Shuah Khan :
> On 06/16/2017 01:39 AM, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > To enable vivid to be used with explicit synchronization we need
> > to mark its queues as ordered.
> >
> > Signed-off-by: Gustavo Padovan
> >
2017-07-06 Hans Verkuil :
> On 06/16/17 09:39, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create
> > an out_fence for the buffer and return it to userspace on the fence_fd
> > field.
2017-07-10 Gustavo Padovan :
> 2017-07-07 Hans Verkuil :
>
> > On 07/07/2017 04:00 AM, Gustavo Padovan wrote:
> > > 2017-07-06 Hans Verkuil :
> > >
> > > > On 06/16/17 09:39, Gustavo Padovan wrote:
> > > > > From: Gustavo Padovan
>
2017-07-11 Hans Verkuil :
> On 10/07/17 22:26, Gustavo Padovan wrote:
> > 2017-07-10 Gustavo Padovan :
> >
> >> 2017-07-07 Hans Verkuil :
> >>
> >>> On 07/07/2017 04:00 AM, Gustavo Padovan wrote:
> >>>> 2017-07-06 Hans Verku
From: Gustavo Padovan
The cobalt driver may reorder the capture buffers so we need to report
it as such.
v2: - use vb2_ops_set_unordered() helper
Signed-off-by: Gustavo Padovan
---
drivers/media/pci/cobalt/cobalt-v4l2.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/pci
From: Gustavo Padovan
Add section to VIDIOC_QBUF and VIDIOC_QUERY_BUF about it
v6: - Close some gaps in the docs (Hans)
v5:
- Remove V4L2_CAP_ORDERED
- Add doc about V4L2_FMT_FLAG_UNORDERED
v4:
- Document ordering behavior for in-fences
- Document
From: Gustavo Padovan
If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create
an out_fence and send its fd to userspace on the fence_fd field as a
return arg for the QBUF call.
The fence is signaled on buffer_done(), when the job on the buffer is
finished.
v9: - remove in
From: Gustavo Padovan
Drivers that use videobuf2 are capable of using fences and
should report that to userspace.
The coding style is following what each drivers was already
doing.
Signed-off-by: Gustavo Padovan
---
drivers/media/pci/cobalt/cobalt-v4l2.c | 3 ++-
drivers/media
From: Gustavo Padovan
Receive in-fence from userspace and add support for waiting on them
before queueing the buffer to the driver. Buffers can't be queued to the
driver before its fences signal. And a buffer can't be queue to the driver
out of the order they were queued from users
From: Gustavo Padovan
Drivers capable of using fences (vb2 drivers) should report the
V4L2_CAP_FENCES to userspace, so add this flag to the uapi.
Signed-off-by: Gustavo Padovan
---
Documentation/media/uapi/v4l/vidioc-querycap.rst | 3 +++
include/uapi/linux/videodev2.h | 1
From: Gustavo Padovan
Turn the reserved2 field into fence_fd that we will use to send
an in-fence to the kernel or return an out-fence from the kernel to
userspace.
Two new flags were added, V4L2_BUF_FLAG_IN_FENCE, that should be used
when sending a fence to the kernel to be waited on, and
From: Gustavo Padovan
For explicit synchronization it important for userspace to know if the
format being used by the driver can deliver the buffers back to userspace
in the same order they were queued with QBUF.
Ordered streams fits nicely in a pipeline with DRM for example, where
ordered
From: Gustavo Padovan
In preparation to have full support to explicit fence we are
marking codec as non-ordered preventively. It is easier and safer from an
uAPI point of view to move from unordered to ordered than the opposite.
Signed-off-by: Gustavo Padovan
---
drivers/media/platform/coda
From: Gustavo Padovan
Explicit synchronization benefits a lot from ordered queues, they fit
better in a pipeline with DRM for example so create a opt-in way for
drivers notify videobuf2 that the queue is unordered.
Drivers don't need implement it if the queue is ordered.
v2: - im
From: Gustavo Padovan
Instead of putting V4L2_CAP_STREAMING and V4L2_CAP_READWRITE
everywhere, set device_caps earlier with these values.
Signed-off-by: Gustavo Padovan
---
drivers/media/usb/hackrf/hackrf.c | 11 ---
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a
From: Gustavo Padovan
Instead of putting V4L2_CAP_STREAMING everywhere, set device_caps
earlier with this value.
Signed-off-by: Gustavo Padovan
---
drivers/media/platform/omap3isp/ispvideo.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform
From: Gustavo Padovan
To better organize the code we concentrate the setting of
V4L2_CAP_STREAMING in one place.
Signed-off-by: Gustavo Padovan
---
drivers/media/platform/xilinx/xilinx-dma.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform
From: Gustavo Padovan
Hi,
So v8 is finally out addressing the comments from the previous version[1].
For more info see v5 cover letter[2]. The most important points I address
here is the handling of fences that signal with error to follow Hans
suggestion. I also added V4L2_CAP_FENCES to all vb2
From: Gustavo Padovan
We already check for the V4L2_EVENT_CTRL inside
v4l2_ctrl_subscribe_event() so just move this fuction to the default:
branch of the switch and let it does the job for us.
Signed-off-by: Gustavo Padovan
---
drivers/media/platform/vivid/vivid-vid-out.c | 4 +---
1 file
From: Gustavo Padovan
We already check for the V4L2_EVENT_CTRL inside
v4l2_ctrl_subscribe_event() so just move this function to the default:
branch of the switch and let it does the job for us.
Signed-off-by: Gustavo Padovan
---
drivers/media/pci/tw5864/tw5864-video.c | 5 ++---
1 file
From: Gustavo Padovan
We already check for the V4L2_EVENT_CTRL inside
v4l2_ctrl_subscribe_event() so just move the function to the default:
branch of the switch and let it does the job for us.
Signed-off-by: Gustavo Padovan
---
drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c | 5 ++---
1 file
From: Gustavo Padovan
Simplify logic and call v4l2_ctrl_subscribe_event() directly instead
of copying its content over to ivtv_subscribe_event().
Signed-off-by: Gustavo Padovan
---
drivers/media/pci/ivtv/ivtv-ioctl.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a
From: Gustavo Padovan
Move the ret check to the right level under if (pb). It is not
used by the code before that point if pb is NULL.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core/videobuf2-core.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a
From: Gustavo Padovan
We already check for the V4L2_EVENT_CTRL inside
v4l2_ctrl_subscribe_event() so just move this function to the default:
branch of the switch and let it does the job for us.
Signed-off-by: Gustavo Padovan
---
drivers/media/usb/go7007/go7007-v4l2.c | 5 ++---
1 file changed
From: Gustavo Padovan
Hi,
This RFC adds support for Explicit Synchronization of shared buffers in V4L2.
It uses the Sync File Framework[1] as vector to communicate the fences
between kernel and userspace.
I'm sending this to start the discussion on the best approach to implement
Exp
From: Gustavo Padovan
Add a new event the userspace can subscribe to receive notifications
about when a buffer was enqueued onto the driver. The event provides
the index of the enqueued buffer.
Signed-off-by: Gustavo Padovan
---
include/uapi/linux/videodev2.h | 6 ++
1 file changed, 6
From: Gustavo Padovan
Instead of assign the global v4l2 device assigned the specific device,
this was causing trouble when using using V4L2 events with vivid
devices. The queue device should be the same one we opened in userspace.
Signed-off-by: Gustavo Padovan
---
drivers/media/platform
From: Gustavo Padovan
Add vb2_setup_out_fence() and the needed members to struct vb2_buffer.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core/videobuf2-core.c | 31 +++
include/media/videobuf2-core.h | 5 +
2 files changed, 36 insertions
From: Gustavo Padovan
Implement the needed pieces to let userspace subscribe for
V4L2_EVENT_BUF_QUEUED events. Videobuf2 will queue the event for the
DQEVENT ioctl.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core/v4l2-ctrls.c | 6 +-
drivers/media/v4l2-core/videobuf2
From: Javier Martinez Canillas
Add a videobuf2-fence.h header file that contains different helpers
for DMA buffer sharing explicit fence support in videobuf2.
Signed-off-by: Javier Martinez Canillas
Signed-off-by: Gustavo Padovan
---
include/media/videobuf2-fence.h | 49
From: Gustavo Padovan
Call v4l2_ctrl_subscribe_event to subscribe to more events supported by
v4l.
Signed-off-by: Gustavo Padovan
---
drivers/media/usb/uvc/uvc_v4l2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc
From: Gustavo Padovan
In order to support explicit synchronization we need to divide
vb2_core_qbuf() in two parts one, to be executed before the fence
signals and another one after that, to do the actual queueing of
the buffer.
Signed-off-by: Gustavo Padovan
---
drivers/media/v4l2-core
From: Gustavo Padovan
If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create
an out_fence for the buffer and return it to userspace on the fence_fd
field.
The fence is signaled on buffer_done(), when the job on the buffer is
finished.
TODO: clean up on __vb2_queue_cancel
From: Gustavo Padovan
Receive in-fence from userspace and support for waiting on them
before queueing the buffer for the driver.
Signed-off-by: Gustavo Padovan
---
drivers/media/Kconfig| 1 +
drivers/media/v4l2-core/videobuf2-core.c | 24
drivers
From: Gustavo Padovan
Turn the reserved2 field into fence_fd that we will use to send
an in-fence to the kernel return an out-fence from the kernel to
userspace.
Two new flags were added, V4L2_BUF_FLAG_IN_FENCE and
V4L2_BUF_FLAG_OUT_FENCE. They should be used when setting in-fence and
out-fence
Hi Russell,
2017-03-31 Russell King :
> Add debugfs output to report shared and exclusive fences on a dma_buf
> object. This produces output such as:
>
> Dma-buf Objects:
> sizeflags modecount exp_name
> 0829440000050005drm
> E
Hi Philipp,
2017-04-03 Philipp Zabel :
> Hi Gustavo,
>
> On Mon, 2017-03-13 at 16:20 -0300, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Turn the reserved2 field into fence_fd that we will use to send
> > an in-fence to the kernel retur
2017-04-03 Javier Martinez Canillas :
> Hello Mauro and Gustavo,
>
> On 04/03/2017 07:16 AM, Mauro Carvalho Chehab wrote:
> > Hi Gustavo,
> >
> > Em Mon, 13 Mar 2017 16:20:25 -0300
> > Gustavo Padovan escreveu:
> >
> >> From: Gustavo Padovan
&
Hi Sakari,
2017-04-04 Sakari Ailus :
> Hi Gustavo,
>
> Thank you for the patchset. Please see my comments below.
>
> On Mon, Mar 13, 2017 at 04:20:25PM -0300, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Hi,
> >
> > This RFC adds s
Hi Javier,
2017-04-05 Javier Martinez Canillas :
> Hello Gustavo,
>
> On 04/05/2017 11:09 AM, Gustavo Padovan wrote:
> > 2017-04-03 Javier Martinez Canillas :
> >
> >> Hello Mauro and Gustavo,
> >>
> >> On 04/03/2017 07:16 AM, Mauro Carvalho Ch
2017-09-11 Hans Verkuil :
> On 09/11/2017 12:50 PM, Hans Verkuil wrote:
> > On 09/07/2017 08:42 PM, Gustavo Padovan wrote:
> >> From: Gustavo Padovan
> >>
> >> Add section to VIDIOC_QBUF about it
> >>
> >> v2:
> >>- mentio
2017-09-11 Hans Verkuil :
> On 09/11/2017 03:18 PM, Gustavo Padovan wrote:
> > 2017-09-11 Hans Verkuil :
> >
> >> On 09/11/2017 12:50 PM, Hans Verkuil wrote:
> >>> On 09/07/2017 08:42 PM, Gustavo Padovan wrote:
> >>>> From: Gustavo Padovan
Hi Hans,
On Fri, Sep 1, 2017 at 6:46 AM, Hans Verkuil wrote:
> Hi all,
>
> We are organizing a media mini-summit on Friday October 27 in Prague,
> co-located
> with the ELCE conference:
>
> http://events.linuxfoundation.org/events/embedded-linux-conference-europe
>
> This is a call for topics
Hi Brian,
On Mon, 2017-10-02 at 14:41 +0100, Brian Starkey wrote:
> Hi Gustavo,
>
> On Thu, Sep 07, 2017 at 03:42:11PM -0300, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Hi,
> >
> > Refer to the documentation on the first patch for the det
On Mon, 2017-10-02 at 14:42 +0100, Brian Starkey wrote:
> Hi,
>
> On Thu, Sep 07, 2017 at 03:42:13PM -0300, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > Turn the reserved2 field into fence_fd that we will use to send
> > an in-fence to the kernel
On Mon, 2017-10-02 at 14:43 +0100, Brian Starkey wrote:
> Hi,
>
> On Thu, Sep 07, 2017 at 03:42:21PM -0300, Gustavo Padovan wrote:
> > From: Gustavo Padovan
> >
> > For explicit synchronization (and soon for HAL3/Request API) we
> > need
> > the v4l2-dr
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