From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Group functions by buffer type.
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 92 ---
1 files changed, 54 insertions(+), 38 deletions(-)
diff
outside of V4L2. [A sample allocator of
dma-buf shared buffer is given at [1]]
[1]: Rob Clark's DRM:
https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit
Hello,
Thank you for review. Please refer to comments below.
On 04/05/2012 04:58 PM, Rémi Denis-Courmont wrote:
Le jeudi 5 avril 2012 16:59:59 Tomasz Stanislawski, vous avez écrit :
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off
This patch adds support for importing DMABUF files for
vmalloc allocator in Videobuf2.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-vmalloc.c | 56 +++
1 files
interface
Tomasz Stanislawski (2):
v4l: vb2-vmalloc: add support for dmabuf importing
v4l: vivi: support for dmabuf importing
drivers/base/dma-buf.c | 29
drivers/media/video/Kconfig |1 +
drivers/media/video/videobuf2-vmalloc.c | 56
This patch enhances VIVI driver with a support for importing a buffer
from DMABUF file descriptors.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/Kconfig |1 +
drivers/media/video/vivi.c |2
From: Dave Airlie airl...@redhat.com
Add vmap to dmabuf interface.
Signed-off-by: Dave Airlie airl...@redhat.com
---
drivers/base/dma-buf.c | 29 +
include/linux/dma-buf.h | 16
2 files changed, 45 insertions(+), 0 deletions(-)
diff --git
between
other APIs like DRM.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 22 +-
1 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/drivers
This patch adds support for vmap and kmap callbacks
for DMABUF exporter.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 17 +
1 files changed, 17 insertions
This patch adds extension to V4L2 api. It allow to export a mmap buffer as file
descriptor. New ioctl VIDIOC_EXPBUF is added. It takes a buffer offset used by
mmap and return a file descriptor on success.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park
):
v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call
Tomasz Stanislawski (12):
v4l: add buffer exporting via dmabuf
v4l: vb2: add buffer exporting via dmabuf
v4l: vb2-dma-contig: add setup of sglist for MMAP buffers
v4l: vb2-dma-contig: add support for DMABUF exporting
v4l
From: Marek Szyprowski m.szyprow...@samsung.com
Let mmap method to use dma_mmap_coherent call. This patch depends on DMA
mapping redesign patches because the usage of dma_mmap_coherent breaks
dma-contig allocator for architectures other than ARM and AVR.
Signed-off-by: Marek Szyprowski
This patch adds extension to videobuf2-core. It allow to export a mmap buffer
as a file descriptor.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-core.c | 66
This patch enhances s5p-tv with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/mixer_video.c | 10 ++
1 files changed, 10 insertions
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv
This patch adds support for exporting a dma-contig buffer using
DMABUF interface.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 128
1 files changed
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/Kconfig |1 +
drivers/media/video/s5p
This patch enhances s5p-fimc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-fimc/fimc-capture.c |9 +
1 files changed, 9
This patch enhances vivi driver with a support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/vivi.c |9 +
1 files changed, 9 insertions(+), 0
This patch adds the setup of sglist list for MMAP buffers.
It is needed for buffer exporting via DMABUF mechanism.
This patch depends on dma_get_pages extension to DMA api.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
between
other APIs like DRM.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 42 ++-
1 files changed, 10 insertions(+), 32 deletions(-)
diff --git
-samsung/commit/3c483f24e418f342eac40dc5fb3991e058deb270
The branch containing all mentioned patches (without platform code)
rebased on 3.4-rc1 is available at link:
http://git.infradead.org/users/kmpark/linux-2.6-samsung/shortlog/refs/heads/v3.4-rc1-v4l-drm-dmabuf-for-test
Regards,
Tomasz
Hi Laurent,
Thank you for review. Your comments are very helpful :).
Take a look on the comments below.
On 04/06/2012 05:02 PM, Laurent Pinchart wrote:
Hi Tomasz,
On Thursday 05 April 2012 16:00:05 Tomasz Stanislawski wrote:
From: Andrzej Pietrasiewicz andrze...@samsung.com
This patch
On 04/06/2012 03:29 PM, Laurent Pinchart wrote:
Hi Tomasz,
On Thursday 05 April 2012 16:00:00 Tomasz Stanislawski wrote:
From: Sumit Semwal sumit.sem...@ti.com
This patch adds support for DMABUF memory type in videobuf2. It calls
relevant APIs of dma_buf for v4l reqbuf / qbuf / dqbuf
Hi Laurent,
Thanks for review.
On 04/06/2012 05:12 PM, Laurent Pinchart wrote:
Hi Tomasz,
On Thursday 05 April 2012 16:00:08 Tomasz Stanislawski wrote:
From: Sumit Semwal sumit.sem...@ti.com
This patch makes changes for adding dma-contig as a dma_buf user. It
provides function
for shared buffer (dma_buf)
v4l: vb: remove warnings about MEMORY_DMABUF
v4l: vb2-dma-contig: add support for dma_buf importing
Tomasz Stanislawski (5):
Documentation: media: description of DMABUF importing in V4L2
v4l: vb2-dma-contig: Remove unneeded allocation context structure
v4l: vb2-dma
From: Sumit Semwal sumit.sem...@ti.com
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor in v4l2_plane and v4l2_buffer.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal sumit.sem
From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Group functions by buffer type.
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 92 ---
1 files changed, 54 insertions(+), 38 deletions(-)
diff
outside of V4L2. [A sample allocator of
dma-buf shared buffer is given at [1]]
[1]: Rob Clark's DRM:
https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit
vb2-dma-contig returns a vb2_dc_conf structure instance as the vb2
allocation context. That structure only stores a pointer to the physical
device. Remove it and use the device pointer directly as the allocation
context.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
---
drivers
between
other APIs like DRM.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 21 +++--
1 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers
[bugfixing]
Signed-off-by: Kamil Debski k.deb...@samsung.com
[bugfixing]
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[add sglist subroutines/code refactoring]
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 287
sumit.sem...@linaro.org
[author of the original patch]
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[integration with refactored dma-contig allocator]
---
drivers/media/video/videobuf2-dma-contig.c | 112
1 files changed, 112 insertions
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv
From: Marek Szyprowski m.szyprow...@samsung.com
Add prepare/finish callbacks to vb2-dma-contig allocator.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 24
1 files changed, 24 insertions(+), 0 deletions(-)
From: Marek Szyprowski m.szyprow...@samsung.com
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/media/video/videobuf2-core.c | 11 +++
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/Kconfig |1 +
drivers/media/video/s5p
From: Sumit Semwal sumit.sem...@ti.com
Adding DMABUF memory type causes videobuf to complain about not using it
in some switch cases. This patch removes these warnings.
Signed-off-by: Sumit Semwal sumit.sem...@ti.com
---
drivers/media/video/videobuf-core.c |4
1 files changed, 4
From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 36 ++--
1 files changed, 18 insertions(+), 18 deletions(-)
diff --git
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/DocBook/media/v4l/compat.xml |4 +
Documentation/DocBook
for modes
only from valid platforms
Marek Szyprowski (1):
media: s5p-tv: fix plane size calculation
Sachin Kamat (1):
s5p-tv: Fix section mismatch warning in mixer_video.c
Tomasz Stanislawski (5):
v4l: s5p-tv: mixer: fix compilation warning
v4l: s5p-tv: hdmiphy: add support for per-platform
This patch fixes compilation warning in debug message. The warning is caused
by incorrect 'unsigned' to 'unsigned long' conversion in dev_dbg.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv
a section containing const variables is marked read only and so
cannot contain non-const variables.
Signed-off-by: Uwe Kleine-König u.kleine-koe...@pengutronix.de
Cc: Kyungmin Park kyungmin.p...@samsung.com
Cc: Tomasz Stanislawski t.stanisl...@samsung.com
Cc: Mauro Carvalho Chehab mche...@infradead.org
Cc
The next frame was fetched by Mixer at every VSYNC event. This caused tearing
when Mixer's output in interlaced mode. This patch fixes this bug by fetching
new frame every second VSYNC when working in interlaced mode.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off
From: Sachin Kamat sachin.ka...@linaro.org
The function __devinit mxr_probe() references
a function __devexit mxr_release_video().
Since mxr_release_video() is referenced outside the exit section, the following
compilation warning is generated which is fixed here:
WARNING:
This patch fixes timings configuration in HDMI register. It adds support for
numerous new presets including interlaces ones.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/hdmi_drv.c | 460
Adds selection of HDMIPHY configuration tables basing on both preset and
platform variant.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/hdmiphy_drv.c | 225 +-
1
-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/hdmi_drv.c | 20
1 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/media/video/s5p-tv/hdmi_drv.c
b/drivers/media/video
' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
include/linux/scatterlist.h |4 +++
lib/scatterlist.c | 63 +++
2 files changed, 67 insertions
Hi Laurent,
Thank you for your review.
Please refer to the comments below.
On 04/17/2012 04:08 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Tuesday 10 April 2012 15:10:39 Tomasz Stanislawski wrote:
This patch adds support for exporting a dma-contig buffer using
DMABUF
Hi Laurent,
On 04/17/2012 02:57 AM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Friday 13 April 2012 17:47:53 Tomasz Stanislawski wrote:
From: Sumit Semwal sumit.sem...@ti.com
This patch makes changes for adding dma-contig as a dma_buf user. It
provides function
On 04/17/2012 01:25 AM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Friday 13 April 2012 17:47:44 Tomasz Stanislawski wrote:
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski t.stanisl
Hi Mauro,
On 04/19/2012 10:37 PM, Mauro Carvalho Chehab wrote:
Em 19-04-2012 11:32, Tomasz Stanislawski escreveu:
Hi Laurent,
One may find similar sentences in MMAP, USERPTR and DMABUF.
Maybe the common parts like description of STREAMON/OFF,
QBUF/DQBUF shuffling should be moved
Hi Laurent,
On 04/17/2012 02:43 AM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Friday 13 April 2012 17:47:50 Tomasz Stanislawski wrote:
From: Andrzej Pietrasiewicz andrze...@samsung.com
This patch introduces usage of dma_map_sg to map memory behind
a userspace pointer
Hi Remi,
On 04/20/2012 12:56 PM, Rémi Denis-Courmont wrote:
On Fri, 20 Apr 2012 10:41:37 +0200, Tomasz Stanislawski
t.stanisl...@samsung.com wrote:
Am I understanding wrong or are you saying that you want to drop
userptr
from V4L2 API in long-term? If so, why?
Dropping userptr is just some
to allocators
v4l: vb2-dma-contig: add prepare/finish to dma-contig allocator
Sumit Semwal (4):
v4l: Add DMABUF as a memory type
v4l: vb2: add support for shared buffer (dma_buf)
v4l: vb: remove warnings about MEMORY_DMABUF
v4l: vb2-dma-contig: add support for dma_buf importing
Tomasz Stanislawski
From: Sumit Semwal sumit.sem...@ti.com
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor in v4l2_plane and v4l2_buffer.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal sumit.sem
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv
From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 36 ++--
1 files changed, 18 insertions(+), 18 deletions(-)
diff --git
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
Acked-by: Sylwester Nawrocki s.nawro...@samsung.com
---
drivers/media/video
[bugfixing]
Signed-off-by: Kamil Debski k.deb...@samsung.com
[bugfixing]
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[add sglist subroutines/code refactoring]
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 279
sumit.sem...@linaro.org
[author of the original patch]
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[integration with refactored dma-contig allocator]
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 113
From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Group functions by buffer type.
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 92 ---
1 files changed, 54 insertions(+), 38 deletions(-)
diff
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
Documentation/DocBook/media/v4l/compat.xml |4 +
Documentation/DocBook
vb2-dma-contig returns a vb2_dc_conf structure instance as the vb2
allocation context. That structure only stores a pointer to the physical
device. Remove it and use the device pointer directly as the allocation
context.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Acked
outside of V4L2. [A sample allocator of
dma-buf shared buffer is given at [1]]
[1]: Rob Clark's DRM:
https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit
From: Marek Szyprowski m.szyprow...@samsung.com
Add prepare/finish callbacks to vb2-dma-contig allocator.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 24
1 files changed, 24 insertions(+), 0 deletions(-)
From: Sumit Semwal sumit.sem...@ti.com
Adding DMABUF memory type causes videobuf to complain about not using it
in some switch cases. This patch removes these warnings.
Signed-off-by: Sumit Semwal sumit.sem...@ti.com
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
to allocators
v4l: vb2-dma-contig: add prepare/finish to dma-contig allocator
Sumit Semwal (4):
v4l: Add DMABUF as a memory type
v4l: vb2: add support for shared buffer (dma_buf)
v4l: vb: remove warnings about MEMORY_DMABUF
v4l: vb2-dma-contig: add support for dma_buf importing
Tomasz Stanislawski
From: Sumit Semwal sumit.sem...@ti.com
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor in v4l2_plane and v4l2_buffer.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal sumit.sem
From: Marek Szyprowski m.szyprow...@samsung.com
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
in userptr mode' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
include/linux/scatterlist.h |4 +++
lib/scatterlist.c | 63 +++
2 files changed
Hi Subash,
Could you provide a detailed description of a test case
that causes a failure of vb2_dc_pages_to_sgt?
Regards,
Tomasz Stanislawski
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To unsubscribe from this list: send the line unsubscribe linux-media in
the body of a message to majord...@vger.kernel.org
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in userptr mode' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
include/linux/scatterlist.h |4 +++
lib/scatterlist.c | 64 +++
2 files changed
that causes the failure?
I mean pages array + size (I assume that offset is zero for your test).
Having the arguments we could reproduce that bug.
Regards,
Tomasz Stanislawski
On 05/09/2012 08:46 AM, Subash Patel wrote:
Hello Tomasz, Laurent,
I have printed some logs during the dmabuf
Hi Andrew,
Thank you for your review,
Please refer to the comments below.
On 05/18/2012 01:56 AM, Andrew Morton wrote:
On Tue, 08 May 2012 11:50:33 +0200
Tomasz Stanislawski t.stanisl...@samsung.com wrote:
This patch adds a new constructor for an sg table. The table is constructed
from
a new dma_buf instance at every export event?
Regards,
Tomasz Stanislawski
vb2 core will then try to call dma_buf_fd() on a dma_buf object that has been
freed.
+ /* dmabuf keeps reference to vb2 buffer */
+ atomic_inc(buf-refcount);
+ dbuf = dma_buf_export(buf, vb2_dc_dmabuf_ops, buf
at dma_buf_fd
I prefer solution (b) because it prevents symmetry between dma_buf_fd and close.
I mean that dma_buf_fd increases reference count, close decreases it.
What is your opinion about the issue?
Regards,
Tomasz Stanislawski
On 03/16/2012 05:04 PM, Rob Clark wrote:
From: Rob Clark r
On 05/22/2012 04:32 PM, Daniel Vetter wrote:
On Tue, May 22, 2012 at 03:47:12PM +0200, Tomasz Stanislawski wrote:
Hi,
I think I discovered an interesting issue with dma_buf.
I found out that dma_buf_fd does not increase reference
count for dma_buf::file. This leads to potential kernel
crash
)
v4l: vb: remove warnings about MEMORY_DMABUF
v4l: vb2-dma-contig: add support for dma_buf importing
Tomasz Stanislawski (5):
Documentation: media: description of DMABUF importing in V4L2
v4l: vb2-dma-contig: Remove unneeded allocation context structure
v4l: vb2-dma-contig: add support
From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 36 ++--
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git
vb2-dma-contig returns a vb2_dc_conf structure instance as the vb2
allocation context. That structure only stores a pointer to the physical
device. Remove it and use the device pointer directly as the allocation
context.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Acked
From: Marek Szyprowski m.szyprow...@samsung.com
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
sumit.sem...@linaro.org
[author of the original patch]
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[integration with refactored dma-contig allocator]
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 119
...@samsung.com. Kind thanks for bug reports from Laurent
Pinchart laurent.pinch...@ideasonboard.com and Seung-Woo Kim
sw0312@samsung.com.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
Acked-by: Laurent Pinchart laurent.pinch
From: Laurent Pinchart laurent.pinch...@ideasonboard.com
Group functions by buffer type.
Signed-off-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 92
1 file changed, 54 insertions(+), 38 deletions(-)
diff
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
Acked-by: Sylwester Nawrocki s.nawro...@samsung.com
---
drivers/media/video/s5p
outside of V4L2. [A sample allocator of
dma-buf shared buffer is given at [1]]
[1]: Rob Clark's DRM:
https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
CC: linux-...@vger.kernel.org
---
Documentation/DocBook/media/v4l/compat.xml
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv
the following patchsets:
Marek Szyprowski (1):
v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call
Tomasz Stanislawski (11):
v4l: add buffer exporting via dmabuf
v4l: vb2: add buffer exporting via dmabuf
v4l: vb2-dma-contig: add setup of sglist for MMAP buffers
v4l: vb2-dma
This patch enhances s5p-fimc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/s5p-fimc/fimc-capture.c |9 +
1 file changed, 9
This patch adds extension to videobuf2-core. It allow to export a mmap buffer
as a file descriptor.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-core.c | 67
This patch removes vb2_mmap_pfn_range from videobuf2 helpers.
The function is no longer used in vb2 code.
Suggested-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
From: Marek Szyprowski m.szyprow...@samsung.com
Let mmap method to use dma_mmap_coherent call. This patch depends on DMA
mapping redesign patches because the usage of dma_mmap_coherent breaks
dma-contig allocator for architectures other than ARM and AVR.
Signed-off-by: Marek Szyprowski
This patch enhances s5p-mfc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
CC: Kamil Debski k.deb...@samsung.com
---
drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 13
This patch adds the setup of sglist list for MMAP buffers.
It is needed for buffer exporting via DMABUF mechanism.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 70
This patch makes use of sg_alloc_table_from_pages to simplify
handling of sg tables.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 90
1 file
This patch adds support for exporting a dma-contig buffer using
DMABUF interface.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 119
1 file changed
This patch adds extension to V4L2 api. It allow to export a mmap buffer as file
descriptor. New ioctl VIDIOC_EXPBUF is added. It takes a buffer offset used by
mmap and return a file descriptor on success.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park
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