This patch adds support for exporting a dma-contig buffer using
DMABUF interface.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 248
1 file changed, 248 insertions(+)
diff --git a/drivers/media
This patch enhances s5p-tv with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-tv/mixer_video.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/media/video/s5p-tv
This patch adds extension to videobuf2-core. It allow to export a mmap buffer
as a file descriptor.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-core.c | 67 ++
include/media
This patch enhances s5p-fimc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-fimc/fimc-capture.c |9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/media/video/s5p-fimc
This patch adds description and usage examples for exporting
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
CC: linux-...@vger.kernel.org
---
Documentation/DocBook/media/v4l/compat.xml|3 +
Documentation/DocBook/media/v4l/io.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
Signed-off-by: Kyungmin Park
---
drivers/media/video
helpers.
The function is no longer used in vb2 code.
Suggested-by: Laurent Pinchart
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 28 +--
drivers/media/video/videobuf2-memops.c
ermalink.gmane.org/gmane.comp.video.dri.devel/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):
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv/mixer_video.c |2 +-
2 files changed, 2
]
Signed-off-by: Tomasz Stanislawski
[integration with refactored dma-contig allocator]
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 120 +++-
1 file changed, 118 insertions(+), 2 deletions(-)
diff --git a/drivers/media/video
This patch enhances VIVI driver with a support for importing a buffer
from DMABUF file descriptors.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/Kconfig |1 +
drivers/media/video/vivi.c |2 +-
2 files changed, 2 insertions(+), 1 deletion
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Sylwester Nawrocki
---
drivers/media/video/s5p-fimc/Kconfig|1 +
drivers/media/video/s5p-fimc/fimc-capture.c
From: Marek Szyprowski
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-core.c | 11 +++
include/media/videobuf2-core.h
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: Marek Szyprowski
Add prepare/finish callbacks to vb2-dma-contig allocator.
Signed-off-by: Marek Szyprowski
---
drivers/media/video/videobuf2-dma-contig.c | 24
1 file changed, 24 insertions(+)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/
Seung-Woo Kim
.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 229 ++--
1 file changed, 213 insertions(+), 16 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma
From: Laurent Pinchart
Signed-off-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 36 ++--
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/media/video/videobuf2-dma-contig.c
ind
This patch adds support for importing DMABUF files for
vmalloc allocator in Videobuf2.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-vmalloc.c | 56 +++
1 file changed, 56 insertions(+)
diff --git a/drivers
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
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal
Signed-off-by: Sumit Semwal
From: Sumit Semwal
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor in v4l2_plane and v4l2_buffer.
Signed-off-by: Tomasz Stanislawski
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal
Signed-off-by: Sumit Semwal
Acked-by: Laurent
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
CC: linux-...@vger.kernel.org
---
Documentation/DocBook/media/v4l/compat.xml |4 +
Documentation/DocBook/media/v4l/io.xml
From: Laurent Pinchart
Group functions by buffer type.
Signed-off-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 92
1 file changed, 54 insertions(+), 38 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/media
From: Sumit Semwal
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
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf-core.c |4
1 file changed, 4 insertions(+)
dif
UF 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 (7):
Documentation: media: description of DMABUF importing in V4L2
v4l: vb2-dma-contig: remove
st in userptr mode' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Daniel Vetter
Acked-by: Laurent Pinchart
Signed-off-by: Marek Szyprowski
CC: Andrew Morton
---
v4:
- fix typos
- add Changelog
v3:
- use PFNs instead of page pointer
al vma
b) access the dma 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
al vma
b) access the dma 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
On 05/22/2012 10:10 PM, Andrew Morton wrote:
> On Mon, 21 May 2012 16:01:50 +0200
> Tomasz Stanislawski wrote:
>
>>>> +int sg_alloc_table_from_pages(struct sg_table *sgt,
>>>> + struct page **pages, unsigned int n_pages,
>>>> + unsigned long offse
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
On 05/22/2012 10:10 PM, Andrew Morton wrote:
> On Mon, 21 May 2012 16:01:50 +0200
> Tomasz Stanislawski wrote:
>
>>>> +int sg_alloc_table_from_pages(struct sg_table *sgt,
>>>> + struct page **pages, unsigned int n_pages,
>>>> + unsigned long offse
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
The allocation of dma_buf_attachment is moved to attach callback.
The initialization is left in map callback.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 39 ++--
1 file changed, 26 insertions(+), 13
This patch makes use of sg_alloc_table_from_pages to simplify
handling of sg tables.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 90
1 file changed, 25 insertions(+), 65 deletions(-)
diff --git
This patch removes vb2_mmap_pfn_range from videobuf2 helpers.
The function is no longer used in vb2 code.
Suggested-by: Laurent Pinchart
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-memops.c | 40
include
This patch enhances s5p-mfc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
CC: Kamil Debski
---
drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 13 +
drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 13
This patch enhances s5p-tv with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-tv/mixer_video.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/media/video/s5p-tv
This patch enhances s5p-fimc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-fimc/fimc-capture.c |9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/media/video/s5p-fimc
This patch adds support for vmap and kmap callbacks
for DMABUF exporter.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 17 +
1 file changed, 17 insertions(+)
diff --git a/drivers/media/video/videobuf2-dma
This patch adds support for exporting a dma-contig buffer using
DMABUF interface.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 119
1 file changed, 119 insertions(+)
diff --git a/drivers/media
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
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 70 +++-
1 file changed, 68 insertions
This patch adds extension to videobuf2-core. It allow to export a mmap buffer
as a file descriptor.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-core.c | 67 ++
include/media/videobuf2-core.h |2
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
Signed-off-by: Kyungmin Park
---
drivers/media/video
From: Marek Szyprowski
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
---
drivers/media/video/videobu
on 3.4-rc1 plus 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
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Sylwester Nawrocki
---
drivers/media/video/s5p-fimc/Kconfig|1 +
drivers/media/video/s5p-fimc/fimc-capture.c
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv/mixer_video.c |2 +-
2 files changed, 2
]
Signed-off-by: Tomasz Stanislawski
[integration with refactored dma-contig allocator]
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 119 +++-
1 file changed, 117 insertions(+), 2 deletions(-)
diff --git a/drivers/media/video
From: Marek Szyprowski
Add prepare/finish callbacks to vb2-dma-contig allocator.
Signed-off-by: Marek Szyprowski
---
drivers/media/video/videobuf2-dma-contig.c | 24
1 file changed, 24 insertions(+)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/
From: Marek Szyprowski
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-core.c | 11 +++
include/media/videobuf2-core.h
and Seung-Woo Kim
.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 268 ++--
1 file changed, 252 insertions(+), 16 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma
From: Laurent Pinchart
Group functions by buffer type.
Signed-off-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 92
1 file changed, 54 insertions(+), 38 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/media
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
Acked-by: Laurent Pinchart
---
drivers
From: Laurent Pinchart
Signed-off-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 36 ++--
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/media/video/videobuf2-dma-contig.c
ind
From: Sumit Semwal
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
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf-core.c |4
1 file changed, 4 insertions(+)
dif
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
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal
Signed-off-by: Sumit Semwal
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
CC: linux-doc at vger.kernel.org
---
Documentation/DocBook/media/v4l/compat.xml |4 +
Documentation/DocBook/media/v4l/io.xml
From: Sumit Semwal
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor in v4l2_plane and v4l2_buffer.
Signed-off-by: Tomasz Stanislawski
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal
Signed-off-by: Sumit Semwal
Acked-by: Laurent
ort 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
v4
The allocation of dma_buf_attachment is moved to attach callback.
The initialization is left in map callback.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 39 ++--
1 file changed, 26 insertions(+), 13
This patch makes use of sg_alloc_table_from_pages to simplify
handling of sg tables.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 90
1 file changed, 25 insertions(+), 65 deletions(-)
diff --git
This patch removes vb2_mmap_pfn_range from videobuf2 helpers.
The function is no longer used in vb2 code.
Suggested-by: Laurent Pinchart
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-memops.c | 40
include
This patch adds support for vmap and kmap callbacks
for DMABUF exporter.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 17 +
1 file changed, 17 insertions(+)
diff --git a/drivers/media/video/videobuf2-dma
This patch enhances s5p-mfc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
CC: Kamil Debski
---
drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 13 +
drivers/media/video/s5p-mfc/s5p_mfc_enc.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
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 70 +++-
1 file changed, 68 insertions
This patch enhances s5p-fimc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-fimc/fimc-capture.c |9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/media/video/s5p-fimc
This patch enhances s5p-tv with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-tv/mixer_video.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/media/video/s5p-tv
This patch adds support for exporting a dma-contig buffer using
DMABUF interface.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-dma-contig.c | 119
1 file changed, 119 insertions(+)
diff --git a/drivers/media
This patch adds extension to videobuf2-core. It allow to export a mmap buffer
as a file descriptor.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/videobuf2-core.c | 67 ++
include/media/videobuf2-core.h |2
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
Signed-off-by: Kyungmin Park
---
drivers/media/video
From: Marek Szyprowski
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
---
drivers/media/video/videobu
on 3.4-rc1 plus 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
]
Signed-off-by: Tomasz Stanislawski
[integration with refactored dma-contig allocator]
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 119 +++-
1 file changed, 117 insertions(+), 2 deletions(-)
diff --git a/drivers/media/video
Seung-Woo Kim
.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 268 ++--
1 file changed, 252 insertions(+), 16 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma
This patch enhances s5p-tv with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
drivers/media/video/s5p-tv/Kconfig |1 +
drivers/media/video/s5p-tv/mixer_video.c |2 +-
2 files changed, 2
From: Marek Szyprowski
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf2-core.c | 11 +++
include/media/videobuf2-core.h
This patch enhances s5p-fimc with support for DMABUF importing via
V4L2_MEMORY_DMABUF memory type.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Acked-by: Sylwester Nawrocki
---
drivers/media/video/s5p-fimc/Kconfig|1 +
drivers/media/video/s5p-fimc/fimc-capture.c
From: Laurent Pinchart
Group functions by buffer type.
Signed-off-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 92
1 file changed, 54 insertions(+), 38 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/media
From: Marek Szyprowski
Add prepare/finish callbacks to vb2-dma-contig allocator.
Signed-off-by: Marek Szyprowski
---
drivers/media/video/videobuf2-dma-contig.c | 24
1 file changed, 24 insertions(+)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/
From: Laurent Pinchart
Signed-off-by: Laurent Pinchart
---
drivers/media/video/videobuf2-dma-contig.c | 36 ++--
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/media/video/videobuf2-dma-contig.c
b/drivers/media/video/videobuf2-dma-contig.c
ind
From: Sumit Semwal
Adds DMABUF memory type to v4l framework. Also adds the related file
descriptor in v4l2_plane and v4l2_buffer.
Signed-off-by: Tomasz Stanislawski
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal
Signed-off-by: Sumit Semwal
Acked-by: Laurent
This patch adds description and usage examples for importing
DMABUF file descriptor in V4L2.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
CC: linux-...@vger.kernel.org
---
Documentation/DocBook/media/v4l/compat.xml |4 +
Documentation/DocBook/media/v4l/io.xml
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
[original work in the PoC for buffer sharing]
Signed-off-by: Sumit Semwal
Signed-off-by: Sumit Semwal
ort 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
v4
From: Sumit Semwal
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
Acked-by: Laurent Pinchart
---
drivers/media/video/videobuf-core.c |4
1 file changed, 4 insertions(+)
dif
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
Acked-by: Laurent Pinchart
---
drivers
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::fi
reference count 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:
&
of dma_buf pointer.
The new dma_buf would be created and exported at every export event.
The dma_buf_put would be called in vb2_expbuf just after
successful dma_buf_fd.
Do you have any ideas how I could deal with resource leakage/dangling problems
without creating a new dma_buf instance at every expo
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::fi
reference count 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:
&
of dma_buf pointer.
The new dma_buf would be created and exported at every export event.
The dma_buf_put would be called in vb2_expbuf just after
successful dma_buf_fd.
Do you have any ideas how I could deal with resource leakage/dangling problems
without creating a new dma_buf instance at every expo
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 wrote:
>
>> This patch adds a new constructor for an sg table. The table is constructed
>> fr
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 wrote:
>
>> This patch adds a new constructor for an sg table. The table is constructed
>> fr
arguments 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 log
arguments 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 log
st in userptr mode' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
include/linux/scatterlist.h |4 +++
lib/scatterlist.c | 64 +++
2 files changed, 68 insertions(+), 0 deletions(-)
di
st in userptr mode' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
include/linux/scatterlist.h |4 +++
lib/scatterlist.c | 64 +++
2 files changed, 68 insertions(+), 0 deletions(-)
di
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
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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st in userptr mode' and hints from Laurent Pinchart.
Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
---
include/linux/scatterlist.h |4 +++
lib/scatterlist.c | 63 +++
2 files changed, 67 insertions(+), 0 deletions(-)
di
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