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/vivi.c |2 +-
1 file changed, 1 insertion(+), 1
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/mixer_video.c |2 +-
1 file changed, 1 insertion
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
...@samsung.com
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 28 +--
drivers/media/video/videobuf2-memops.c | 40
include
This patch adds description and usage examples for exporting
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 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
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
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media
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 | 200
1 file changed
descriptor(s). The device pointer kept in a buffer must be valid for the
whole buffer's lifetime. Therefore MMAP buffers should take a reference to the
device to avoid risk of dangling pointers.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
---
drivers/media/video/videobuf2-dma
From: Marek Szyprowski m.szyprow...@samsung.com
The DMA transfer must be aligned to a specific value. If userptr is not aligned
to DMA requirements then unexpected corruptions of the memory may occur before
or after a buffer. To prevent such situations, all unligned userptr buffers
are rejected
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
CC: Sylwester Nawrocki s.nawro...@samsung.com
---
drivers/media/video/s5p-fimc/fimc-capture.c
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 file changed, 10 insertions
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 | 14
Hi Laurent,
On 08/15/2012 10:04 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Tuesday 14 August 2012 17:34:51 Tomasz Stanislawski wrote:
This patch adds taking reference to the device for MMAP buffers.
Such buffers, may be exported using DMABUF mechanism. If the driver
Hi Hans,
Thank your for your comments.
On 09/26/2012 08:39 AM, Hans Verkuil wrote:
On Tue September 25 2012 18:30:43 Tomasz Stanislawski wrote:
Hi Hans,
Thank you for review.
Please refer to the comments below.
On 08/22/2012 01:41 PM, Hans Verkuil wrote:
On Tue August 14 2012 17:34:48
On 08/22/2012 01:47 PM, Hans Verkuil wrote:
On Wed August 22 2012 12:56:30 Hans Verkuil wrote:
On Tue August 14 2012 17:34:43 Tomasz Stanislawski wrote:
This patch enhances VIVI driver with a support for importing a buffer
from DMABUF file descriptors.
Thanks for adding DMABUF support
Hi Hans,
Thank you for review.
Please refer to the comments below.
On 08/22/2012 01:41 PM, Hans Verkuil wrote:
On Tue August 14 2012 17:34:48 Tomasz Stanislawski wrote:
This patch adds extension to V4L2 api. It allow to export a mmap buffer as
file
descriptor. New ioctl VIDIOC_EXPBUF
platform_device
*pdev)
mdev = kzalloc(sizeof *mdev, GFP_KERNEL);
if (!mdev) {
- mxr_err(mdev, not enough memory.\n);
+ dev_err(dev, not enough memory.\n);
ret = -ENOMEM;
goto fail;
}
Acked-by: Tomasz Stanislawski t.stanisl
Acked-by: Tomasz Stanislawski t.stanisl...@samsung.com
---
drivers/media/platform/s5p-tv/sdo_drv.c |3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/platform/s5p-tv/sdo_drv.c
b/drivers/media/platform/s5p-tv/sdo_drv.c
index ad68bbe..58cf56d 100644
--- a/drivers/media
Hi Hans,
Thank you for review.
On 08/22/2012 12:47 PM, Hans Verkuil wrote:
On Tue August 14 2012 17:34:32 Tomasz Stanislawski wrote:
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Hi Hans,
Thank your for the review.
Please refer to the comments below.
On 08/22/2012 12:27 PM, Hans Verkuil wrote:
On Tue August 14 2012 17:34:31 Tomasz Stanislawski wrote:
From: Sumit Semwal sumit.sem...@ti.com
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor
Hi Laurent,
Thank you for your comments.
On 08/21/2012 12:03 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
Just a couple of small comments below.
On Tuesday 14 August 2012 17:34:50 Tomasz Stanislawski wrote:
This patch adds support for exporting a dma-contig buffer using
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
):
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 (15):
Documentation: media: description of DMABUF importing in V4L2
v4l: vb2-dma
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
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: 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
---
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
This patch removes a reference to alloc_ctx from an instance of a DMA
contiguous buffer. It helps to avoid a risk of a dangling pointer if the
context is released while the buffer is still valid. Moreover it removes one
dereference step while accessing a device structure.
Signed-off-by: Tomasz
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
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
---
...@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: 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 file changed, 24 insertions(+)
diff --git
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 | 120
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 file
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
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 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
...@samsung.com
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media/video/videobuf2-dma-contig.c | 28 +--
drivers/media/video/videobuf2-memops.c | 40
include
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
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media
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
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 | 204
1 file changed
descriptor(s). The device pointer kept in a buffer must be valid for the
whole buffer's lifetime. Therefore MMAP buffers should take a reference to the
device to avoid risk of dangling pointers.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
---
drivers/media/video/videobuf2-dma
From: Marek Szyprowski m.szyprow...@samsung.com
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
From: Marek Szyprowski m.szyprow...@samsung.com
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/media/video/atmel-isi.c |2 +-
drivers/media/video/blackfin/bfin_capture.c |2 +-
drivers/media/video/marvell-ccic/mcam-core.c |3 ++-
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 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 file changed, 10 insertions
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 | 18
This patch adds description and usage examples for exporting
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 adds reference counting on a module that exported dma-buf and
implements its operations. This prevents the module from being unloaded while
DMABUF file is in use.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Acked-by: Sumit Semwal sumit.sem...@linaro.org
Acked-by: Daniel
This patch sets owner field in DMABUF operations for all DMABUF exporters in
DRM subsystem. This prevents an exporting module from being unloaded while
exported DMABUF descriptor is in use.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Acked-by: Sumit Semwal sumit.sem...@linaro.org
Hello,
This patchset adds reference counting for an exporter module to DMABUF
framework. Moreover, it adds setup of an owner field for exporters in DRM
subsystem.
v1: Original
v2:
- split patch into DMABUF and DRM part
- allow owner to be NULL
Regards,
Tomasz Stanislawski
Tomasz
Hi Greg,
On 08/09/2012 04:23 PM, Greg KH wrote:
On Thu, Aug 09, 2012 at 11:36:21AM +0200, Tomasz Stanislawski wrote:
This patch adds reference counting on a module that exported dma-buf and
implements its operations. This prevents the module from being unloaded while
DMABUF file is in use
This patch adds reference counting on a module that exports dma-buf and
implements its operations. This prevents the module from being unloaded while
DMABUF file is in use.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
---
Documentation/dma-buf-sharing.txt |3
Hi Laurent,
On 08/08/2012 03:35 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Wednesday 08 August 2012 12:17:41 Tomasz Stanislawski wrote:
This patch adds reference counting on a module that exports dma-buf and
implements its operations. This prevents the module from
. Return value can be used to diagnose
errors like incorrectly initialized dma_buf pointer
(like no attachments on an attachment list).
Moreover, there will be no need to add a new handler every time
device_dma_parameters is extended.
Regards,
Tomasz Stanislawski
+
struct sg_table
On 08/06/2012 01:58 PM, Michal Nazarewicz wrote:
Tomasz Stanislawski t.stanisl...@samsung.com writes:
I recommend to change the semantics for unlimited number of segments
from 'value 0' to:
#define DMA_SEGMENTS_COUNT_UNLIMITED ((unsigned long)INT_MAX)
Sorry. It should be:
#define
Tomasz Stanislawski wrote:
Hi Dima Zavin,
Thank you for the patch and for a ping remainder :).
You are right. The unmap is missing in __vb2_queue_cancel.
I will apply your fix into next version of V4L2 support for dmabuf.
Please refer to some comments below.
On 06/20/2012 08:12 AM, Dima Zavin
Hi Hans,
On 07/31/2012 02:11 PM, Hans Verkuil wrote:
On Tue 31 July 2012 13:56:14 Laurent Pinchart wrote:
Hi Hans,
On Tuesday 31 July 2012 08:33:56 Hans Verkuil wrote:
On Thu June 14 2012 16:32:23 Tomasz Stanislawski wrote:
+/**
+ * struct v4l2_exportbuffer - export of video buffer
or
(even worse) not used?
The mmap is called on each plane separately. So why VIDIOC_EXPBUF should
behave differently?
Regards,
Tomasz Stanislawski
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Hi Sachin,
Thank you for the patch.
On 07/04/2012 08:33 AM, Sachin Kamat wrote:
module_i2c_driver makes the code simpler by eliminating module_init
and module_exit calls.
Signed-off-by: Sachin Kamat sachin.ka...@linaro.org
Acked-by: Tomasz Stanislawski t.stanisl...@samsung.com
;
+ }
+ }
+ }
}
/**
Regards,
Tomasz Stanislawski
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Hi Laurent,
On 06/19/2012 11:00 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Thursday 14 June 2012 15:37:40 Tomasz Stanislawski wrote:
This patch removes a reference to alloc_ctx from an instance of a DMA
contiguous buffer. It helps to avoid a risk of a dangling
Hi Laurent,
Thank you for the patch.
On 06/20/2012 04:09 PM, Laurent Pinchart wrote:
Add support for the dma-buf exporter role to the frame buffer API. The
importer role isn't meaningful for frame buffer devices, as the frame
buffer device model doesn't allow using externally allocated memory.
.
The build-break will be fixed in the next version of
the patchset.
Regards,
Tomasz Stanislawski
On 06/14/2012 03:37 PM, Tomasz Stanislawski wrote:
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
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
Acked-by: Daniel Vetter daniel.vet...@ffwll.ch
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
Signed-off-by: Marek Szyprowski
: 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 (7):
Documentation: media: description of DMABUF importing in V4L2
v4l: vb2-dma-contig: remove reference of alloc_ctx from
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
---
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 | 120
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 file changed, 24 insertions(+)
diff --git
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: 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 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 file
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 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
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
...@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
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: 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 removes a reference to alloc_ctx from an instance of a DMA
contiguous buffer. It helps to avoid a risk of a dangling pointer if the
context is released while the buffer is still valid. Moreover it removes one
dereference step while accessing a device structure.
Signed-off-by: Tomasz
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 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
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
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
Acked-by: Laurent Pinchart laurent.pinch
/69302
[4] This patchset is rebased on 3.4-rc1 plus the following patchsets:
[5] http://www.spinics.net/lists/linux-arch/msg18282.html
Marek Szyprowski (1):
v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call
Tomasz Stanislawski (8):
Documentation: media: description of DMABUF
This patch removes a workaround for extraction of struct pages
from DMA buffer. The method of using follow_pfn for artificial
VMA is dropped in favour of dma_get_sgtable function.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
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
Acked-by: Laurent Pinchart laurent.pinch...@ideasonboard.com
---
drivers/media
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 | 18
This patch adds description and usage examples for exporting
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 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 | 248
1 file changed
memory by calling
*((volatile int *)kaddr) = 0;
before calling follow_pfn
This way a fault is generated and the PT is
updated by copying entries from init_mm.
What do you think about presented solutions?
Regards,
Tomasz Stanislawski
On 06/07/2012 04:28 PM, Subash Patel wrote
Hi Laurent,
Thank your for your comments.
On 06/06/2012 10:06 AM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Wednesday 23 May 2012 15:07:27 Tomasz Stanislawski wrote:
This patch adds the setup of sglist list for MMAP buffers.
It is needed for buffer exporting via DMABUF
On 05/22/2012 10:10 PM, Andrew Morton wrote:
On Mon, 21 May 2012 16:01:50 +0200
Tomasz Stanislawski t.stanisl...@samsung.com wrote:
+int sg_alloc_table_from_pages(struct sg_table *sgt,
+ struct page **pages, unsigned int n_pages,
+ unsigned long offset, unsigned long size,
+ gfp_t
)
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
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