)
+{
+ return;
+}
+#endif /* CONFIG_DMA_SHARED_BUFFER */
+
+#endif /* __DMA_BUF_H__ */
I hope you find my comments useful.
Yours sincerely,
Tomasz Stanislawski
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to function vb2_dc_dmabuf_ops_map at
link below as an example:
http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/43793/focus=43797
Regards,
Tomasz Stanislawski
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http
,
+handle);
+ WARN_ON(ret);
+ ret = drm_prime_add_dma_buf(dev,obj-base);
+ mutex_unlock(dev-prime_mutex);
+ if (ret)
+ return ret;
+
+out_fd:
+ *prime_fd = obj-base.prime_fd;
+
+ return 0;
+}
+
Regards,
Tomasz Stanislawski
;
+ drm_gem_object_unreference_unlocked(obj-base);
+}
+
+struct dma_buf_ops vgem_dmabuf_ops = {
+ .map_dma_buf = vgem_gem_map_dma_buf,
+ .unmap_dma_buf = vgem_gem_unmap_dma_buf,
+ .release = vgem_gem_release
+};
+
Regards,
Tomasz Stanislawski
From: Tomasz Stanislawski t.stanisl...@samsung.com
Fix error handling of dma_buf_export in exynos-drm driver.
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/gpu/drm/exynos/exynos_drm_dmabuf.c |3 ++-
1 files
-infrastructure/45394
[integrate V4L2 with DMABUF]
Regards,
Tomasz Stanislawski
---
#include errno.h
#include fcntl.h
#include linux/videodev2.h
#include math.h
#include poll.h
#include stdio.h
#include stdint.h
#include stdlib.h
#include string.h
#include sys/ioctl.h
#include sys/mman.h
#include
://git.infradead.org/users/kmpark/linux-2.6-samsung/shortlog/refs/heads/3.3-rc5-vb2-dma-contig-dmabuf-drm
Sumit Semwal (1):
v4l: vb2: Add dma-contig allocator as dma_buf user
Tomasz Stanislawski (8):
v4l: vb2: fixes for DMABUF support
v4l: vb2-dma-contig: update and code refactoring
v4l: add buffer
in userptr mode]
Signed-off-by: Kamil Debski k.deb...@samsung.com
[bugfixing]
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
[core refactoring, helper functions]
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/media/video/videobuf2-dma-contig.c | 495
This patch contains fixes to DMABUF support in vb2-core.
- fixes number of arguments of call_memop macro
- fixes setup of plane length
- fixes handling of error pointers
Signed-off-by: Tomasz Stanislawski t.stanisl...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers
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 | 116
1 files changed, 116 insertions
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 | 64
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-fimc/fimc-capture.c | 11 ++-
2 files changed, 11 insertions(+), 1 deletions(-)
diff
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
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 | 64
1 files changed, 27 insertions(+), 37 deletions(-)
diff --git
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
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/mixer_video.c | 12 +++-
2 files changed, 12 insertions(+), 1 deletions(-)
diff --git
Hi Laurent,
Thank you very much for your comments and question.
They were very useful.
Please refer to the comments below.
On 03/22/2012 11:50 AM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Thursday 22 March 2012 11:02:23 Laurent Pinchart wrote:
From: Tomasz Stanislawski
Hi Laurent,
On 03/22/2012 03:42 PM, Laurent Pinchart wrote:
Hi Tomasz,
On Thursday 22 March 2012 14:36:33 Tomasz Stanislawski wrote:
Hi Laurent,
Thank you very much for your comments and question.
They were very useful.
You're welcome.
Please refer to the comments below.
On 03/22
On 03/22/2012 03:52 PM, Subash Patel wrote:
Hi Laurent,
On 03/22/2012 08:12 PM, Laurent Pinchart wrote:
Hi Tomasz,
On Thursday 22 March 2012 14:36:33 Tomasz Stanislawski wrote:
Hi Laurent,
Thank you very much for your comments and question.
They were very useful.
You're welcome
Hi Laurent,
Please refer to the comments below.
On 03/22/2012 12:16 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Tuesday 13 March 2012 11:17:02 Tomasz Stanislawski wrote:
This patch adds extension to V4L2 api. It allow to export a mmap buffer as
file descriptor. New
Hi Laurent,
Thank you for you comments.
On 03/22/2012 12:24 PM, Laurent Pinchart wrote:
Hi Tomasz,
Thanks for the patch.
On Tuesday 13 March 2012 11:17:03 Tomasz Stanislawski wrote:
This patch adds extension to videobuf2-core. It allow to export a mmap
buffer as a file descriptor
type
v4l: vb2: add support for shared buffer (dma_buf)
v4l: vb: remove warnings about MEMORY_DMABUF
v4l: vb2: Add dma-contig allocator as dma_buf user
Tomasz Stanislawski (2):
Documentation: media: description of DMABUF importing in V4L2
v4l: vb2-dma-contig: Remove unneeded allocation
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
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
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: 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
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: 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
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 +++
[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 | 282
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
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 | 117
1 files changed, 117 insertions
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 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
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 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 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 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-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 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
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
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 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
---
drivers/media/video/Kconfig |1 +
drivers/media/video/s5p
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 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
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
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
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
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: 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
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-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
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
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
Dear Mr. Park,
I will prepare and post a patch to lib/scatterlist.c that adds
support for initialization of sg_table from page array.
Yours sincerely,
Tomasz Stanislawski
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http
' 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
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
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
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
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
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
[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
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
---
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(-)
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
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
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
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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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
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: 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
---
)
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
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
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
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
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
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
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
---
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