[PATCH 1/4] clk: propagate parent change up one level

Hi Mike, Do you have any comments about this patch? The patch is needed to provide a clean fix for recently broken support for HDMI on Exynos4210 SoC in mainline. Regards, Tomasz Stanislawski On 05/01/2014 12:19 AM, Tomasz Figa wrote: > Mike, > > On 08.04.2014 17:45, Tomasz Figa wro

[PATCHv9 00/25] Integration of videobuf2 with DMABUF

to use dma_mmap_coherent call v4l: vb2-dma-contig: fail if user ptr buffer is not correctly aligned 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 dm

[PATCHv9 01/25] v4l: Add DMABUF as a memory type

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

[PATCHv9 02/25] Documentation: media: description of DMABUF importing in V4L2

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

[PATCHv9 03/25] v4l: vb2: add support for shared buffer (dma_buf)

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

[PATCHv9 04/25] v4l: vb: remove warnings about MEMORY_DMABUF

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

[PATCHv9 05/25] v4l: vb2-dma-contig: shorten vb2_dma_contig prefix to vb2_dc

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

[PATCHv9 06/25] v4l: vb2-dma-contig: remove reference of alloc_ctx from a buffer

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

[PATCHv9 07/25] v4l: vb2-dma-contig: reorder functions

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

[PATCHv9 08/25] v4l: vb2-dma-contig: add support for scatterlist in userptr mode

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 | 226 ++-- 1 file changed, 210 insertions(+), 16 deletions(-) diff --git a/drivers/media/video/videobuf2-dma

[PATCHv9 09/25] v4l: vb2: add prepare/finish callbacks to allocators

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

[PATCHv9 10/25] v4l: vb2-dma-contig: add prepare/finish to dma-contig allocator

From: Marek Szyprowski Add prepare/finish callbacks to vb2-dma-contig allocator. Signed-off-by: Marek Szyprowski Acked-by: Laurent Pinchart --- drivers/media/video/videobuf2-dma-contig.c | 24 1 file changed, 24 insertions(+) diff --git a/drivers/media/video/videob

[PATCHv9 11/25] v4l: vb2-dma-contig: add support for dma_buf importing

] Signed-off-by: Tomasz Stanislawski [integration with refactored dma-contig allocator] Acked-by: Laurent Pinchart --- drivers/media/video/Kconfig|1 + drivers/media/video/videobuf2-dma-contig.c | 120 +++- 2 files changed, 119 insertions(+), 2

[PATCHv9 12/25] v4l: vb2-vmalloc: add support for dmabuf importing

This patch adds support for importing DMABUF files for vmalloc allocator in Videobuf2. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart --- drivers/media/video/videobuf2-vmalloc.c | 56 +++ 1 file changed, 56 insertions

[PATCHv9 13/25] v4l: vivi: support for dmabuf importing

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/vivi.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/vivi.c b

[PATCHv9 14/25] v4l: s5p-tv: mixer: support for dmabuf importing

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/mixer_video.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media

[PATCHv9 15/25] v4l: s5p-fimc: support for dmabuf importing

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/fimc-capture.c |2 +- 1 file changed, 1 insertion(+), 1 deletion

[PATCHv9 16/25] v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call

From: Marek Szyprowski Let mmap method to use dma_mmap_coherent call. Moreover, this patch removes vb2_mmap_pfn_range from videobuf2 helpers as it was suggested by Laurent Pinchart. The function is no longer used in vb2 code. Signed-off-by: Marek Szyprowski Signed-off-by: Tomasz Stanislawski

[PATCHv9 17/25] Documentation: media: description of DMABUF exporting in V4L2

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-doc at vger.kernel.org --- Documentation/DocBook/media/v4l/compat.xml|3 + Documentation/DocBook/media/v4l/io.xml

[PATCHv9 18/25] v4l: add buffer exporting via dmabuf

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

[PATCHv9 19/25] v4l: vb2: add buffer exporting via dmabuf

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 | 82 ++ include/media

[PATCHv9 20/25] v4l: vb2-dma-contig: add support for DMABUF exporting

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 | 200 1 file changed, 200 insertions(+) diff --git a/drivers/media

[PATCHv9 21/25] v4l: vb2-dma-contig: add reference counting for a device from allocator context

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 --- drivers/media/video/videobuf2-dma-contig.c |5 +++

[PATCHv9 22/25] v4l: vb2-dma-contig: fail if user ptr buffer is not correctly aligned

From: Marek Szyprowski 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 at VIDIOC_QBUF. Signed-o

[PATCHv9 23/25] v4l: s5p-fimc: support for dmabuf exporting

This patch enhances s5p-fimc with support for DMABUF exporting via VIDIOC_EXPBUF ioctl. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park CC: Sylwester Nawrocki --- drivers/media/video/s5p-fimc/fimc-capture.c |9 + 1 file changed, 9 insertions(+) diff --git a

[PATCHv9 24/25] v4l: s5p-tv: mixer: support for dmabuf exporting

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

[PATCHv9 25/25] v4l: s5p-mfc: support for dmabuf exporting

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 | 14 ++ drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 14

[PATCH v1 01/14] media: s5p-hdmi: add HPD GPIO to platform data

Hi Rahul Sharma, On 10/04/2012 05:18 PM, Rahul Sharma wrote: > From: Tomasz Stanislawski > > This patch extends s5p-hdmi platform data by a GPIO identifier for > Hot-Plug-Detection pin. > > Signed-off-by: Tomasz Stanislawski > Signed-off-by: Kyungmin Park Acked-by

[PATCHv9 18/25] v4l: add buffer exporting via dmabuf

Hi Hans, On 10/07/2012 04:17 PM, Hans Verkuil wrote: > On Sun October 7 2012 15:38:30 Laurent Pinchart wrote: >> Hi Hans, >> >> On Friday 05 October 2012 10:55:40 Hans Verkuil wrote: >>> On Tue October 2 2012 16:27:29 Tomasz Stanislawski wrote: >>>> This

[PATCHv9 18/25] v4l: add buffer exporting via dmabuf

Hi Hans, On 10/08/2012 11:54 AM, Hans Verkuil wrote: > On Mon October 8 2012 11:40:37 Tomasz Stanislawski wrote: >> Hi Hans, >> >> On 10/07/2012 04:17 PM, Hans Verkuil wrote: >>> On Sun October 7 2012 15:38:30 Laurent Pinchart wrote: >>>> Hi Hans, >>

[PATCHv9 19/25] v4l: vb2: add buffer exporting via dmabuf

On 10/06/2012 02:22 PM, Hans Verkuil wrote: > On Tue October 2 2012 16:27:30 Tomasz Stanislawski wrote: >> This patch adds extension to videobuf2-core. It allow to export a mmap buffer >> as a file descriptor. >> >> Signed-off-by: Tomasz Stanislawski >> Signed-o

[PATCHv10 00/26] Integration of videobuf2 with DMABUF

ma_buf) v4l: vb: remove warnings about MEMORY_DMABUF v4l: vb2-dma-contig: add support for dma_buf importing Tomasz Stanislawski (16): Documentation: media: description of DMABUF importing in V4L2 v4l: vb2-dma-contig: remove reference of alloc_ctx from a buffer v4l: vb2-dma-contig: add suppo

[PATCHv10 01/26] v4l: Add DMABUF as a memory type

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

[PATCHv10 02/26] Documentation: media: description of DMABUF importing in V4L2

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

[PATCHv10 03/26] v4l: vb2: add support for shared buffer (dma_buf)

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

[PATCHv10 04/26] v4l: vb: remove warnings about MEMORY_DMABUF

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 Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf-core.c |4 1 file c

[PATCHv10 05/26] v4l: vb2-dma-contig: shorten vb2_dma_contig prefix to vb2_dc

From: Laurent Pinchart Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf2-dma-contig.c | 36 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2

[PATCHv10 06/26] v4l: vb2-dma-contig: remove reference of alloc_ctx from a buffer

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

[PATCHv10 07/26] v4l: vb2-dma-contig: reorder functions

From: Laurent Pinchart Group functions by buffer type. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf2-dma-contig.c | 92 ++-- 1 file changed, 54 insertions(+), 38 deletions(-) diff --git a/drivers/media/v4l2-core/videobuf2-d

[PATCHv10 08/26] v4l: vb2-dma-contig: add support for scatterlist in userptr mode

and Seung-Woo Kim . Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf2-dma-contig.c | 226 ++-- 1 file changed, 210 insertions(+), 16 deletions(-) diff --git a/drivers/media

[PATCHv10 09/26] v4l: vb2: add prepare/finish callbacks to allocators

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 Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf2-core.c | 11 +++ inclu

[PATCHv10 10/26] v4l: vb2-dma-contig: add prepare/finish to dma-contig allocator

From: Marek Szyprowski Add prepare/finish callbacks to vb2-dma-contig allocator. Signed-off-by: Marek Szyprowski Acked-by: Laurent Pinchart Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf2-dma-contig.c | 24 1 file changed, 24 insertions(+) diff --git

[PATCHv10 11/26] v4l: vb2-dma-contig: add support for dma_buf importing

] Signed-off-by: Tomasz Stanislawski [integration with refactored dma-contig allocator] Acked-by: Laurent Pinchart --- drivers/media/v4l2-core/Kconfig|1 + drivers/media/v4l2-core/videobuf2-dma-contig.c | 120 +++- 2 files changed, 119 insertions

[PATCHv10 12/26] v4l: vb2-vmalloc: add support for dmabuf importing

This patch adds support for importing DMABUF files for vmalloc allocator in Videobuf2. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart Acked-by: Hans Verkuil --- drivers/media/v4l2-core/Kconfig |1 + drivers/media/v4l2-core/videobuf2

[PATCHv10 13/26] v4l: vivi: support for dmabuf importing

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 Acked-by: Hans Verkuil --- drivers/media/platform/vivi.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a

[PATCHv10 14/26] v4l: s5p-tv: mixer: support for dmabuf importing

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 Acked-by: Hans Verkuil --- drivers/media/platform/s5p-tv/mixer_video.c |2 +- 1 file changed, 1 insertion(+), 1 deletion

[PATCHv10 15/26] v4l: s5p-fimc: support for dmabuf importing

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 Acked-by: Hans Verkuil --- drivers/media/platform/s5p-fimc/fimc-capture.c |2 +- drivers/media

[PATCHv10 16/26] v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call

From: Marek Szyprowski Let mmap method to use dma_mmap_coherent call. Moreover, this patch removes vb2_mmap_pfn_range from videobuf2 helpers as it was suggested by Laurent Pinchart. The function is no longer used in vb2 code. Signed-off-by: Marek Szyprowski Signed-off-by: Tomasz Stanislawski

[PATCHv10 17/26] Documentation: media: description of DMABUF exporting in V4L2

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-doc at vger.kernel.org --- Documentation/DocBook/media/v4l/compat.xml|3 + Documentation/DocBook/media/v4l/io.xml

[PATCHv10 18/26] v4l: add buffer exporting via dmabuf

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/v4l2

[PATCHv10 19/26] v4l: vb2: add buffer exporting via dmabuf

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 Acked-by: Hans Verkuil --- drivers/media/v4l2-core/v4l2-mem2mem.c | 13 + drivers/media/v4l2

[PATCHv10 20/26] v4l: vb2-dma-contig: add support for DMABUF exporting

This patch adds support for exporting a dma-contig buffer using DMABUF interface. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf2-dma-contig.c | 200 1 file changed, 200 insertions(+) diff

[PATCHv10 21/26] v4l: vb2-dma-contig: add reference counting for a device from allocator context

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 Acked-by: Hans Verkuil --- drivers/media/v4l2-core/videobuf

[PATCHv10 22/26] v4l: vb2-dma-contig: fail if user ptr buffer is not correctly aligned

From: Marek Szyprowski 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 at VIDIOC_QBUF. Signed-o

[PATCHv10 23/26] v4l: vb2-dma-contig: align buffer size to PAGE_SIZE

Most operations on DMA and DMABUF framework need page aligned buffers. This fix guarantees this requirement for vb2-dma-contig buffers. Signed-off-by: Tomasz Stanislawski --- drivers/media/v4l2-core/videobuf2-dma-contig.c |3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media

[PATCHv10 24/26] v4l: s5p-fimc: support for dmabuf exporting

This patch enhances s5p-fimc with support for DMABUF exporting via VIDIOC_EXPBUF ioctl. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park CC: Sylwester Nawrocki Acked-by: Hans Verkuil --- drivers/media/platform/s5p-fimc/fimc-capture.c |9 + drivers/media/platform

[PATCHv10 25/26] v4l: s5p-tv: mixer: support for dmabuf exporting

This patch enhances s5p-tv with support for DMABUF exporting via VIDIOC_EXPBUF ioctl. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Hans Verkuil --- drivers/media/platform/s5p-tv/mixer_video.c | 10 ++ 1 file changed, 10 insertions(+) diff --git a

[PATCHv10 26/26] v4l: s5p-mfc: support for dmabuf exporting

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 Acked-by: Hans Verkuil --- drivers/media/platform/s5p-mfc/s5p_mfc_dec.c | 14 ++ drivers/media/platform/s5p

[PATCHv10 21/26] v4l: vb2-dma-contig: add reference counting for a device from allocator context

Hi Laurent, Thank your your review. On 10/11/2012 11:49 PM, Laurent Pinchart wrote: > Hi Tomasz, > > Thanks for the patch. > > On Wednesday 10 October 2012 16:46:40 Tomasz Stanislawski wrote: >> This patch adds taking reference to the device for MMAP buffers. >> >&

[PATCHv10 22/26] v4l: vb2-dma-contig: fail if user ptr buffer is not correctly aligned

Hi Laurent, Thank you for the review. Please refer to the comments below. On 10/11/2012 11:36 PM, Laurent Pinchart wrote: > Hi Tomasz, > > Thanks for the patch. > > On Wednesday 10 October 2012 16:46:41 Tomasz Stanislawski wrote: >> From: Marek Szyprowski >> >>

[PATCHv10 23/26] v4l: vb2-dma-contig: align buffer size to PAGE_SIZE

Hi Laurent, On 10/11/2012 11:31 PM, Laurent Pinchart wrote: > Hi Tomasz, > > On Wednesday 10 October 2012 16:46:42 Tomasz Stanislawski wrote: >> Most operations on DMA and DMABUF framework need page >> aligned buffers. > > The comment is a bit misleading, the buf

[PATCHv8 00/26] Integration of videobuf2 with DMABUF

ERNEL_MAPPING 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 (15): Documentation: media: description of DMABUF im

[PATCHv8 01/26] v4l: Add DMABUF as a memory type

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

[PATCHv8 02/26] Documentation: media: description of DMABUF importing in V4L2

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

[PATCHv8 03/26] v4l: vb2: add support for shared buffer (dma_buf)

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

[PATCHv8 04/26] v4l: vb: remove warnings about MEMORY_DMABUF

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

[PATCHv8 05/26] v4l: vb2-dma-contig: Shorten vb2_dma_contig prefix to vb2_dc

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

[PATCHv8 06/26] v4l: vb2-dma-contig: remove reference of alloc_ctx from a buffer

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

[PATCHv8 07/26] v4l: vb2-dma-contig: Reorder functions

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

[PATCHv8 08/26] v4l: vb2-dma-contig: add support for scatterlist in userptr mode

Seung-Woo Kim . Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart --- drivers/media/video/videobuf2-dma-contig.c | 226 ++-- 1 file changed, 210 insertions(+), 16 deletions(-) diff --git a/drivers/media/video/videobuf2-dma

[PATCHv8 09/26] v4l: vb2: add prepare/finish callbacks to allocators

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

[PATCHv8 10/26] v4l: vb2-dma-contig: add prepare/finish to dma-contig allocator

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/

[PATCHv8 11/26] v4l: vb2-dma-contig: add support for dma_buf importing

] 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

[PATCHv8 12/26] v4l: vb2-vmalloc: add support for dmabuf importing

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

[PATCHv8 13/26] v4l: vivi: support for dmabuf importing

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

[PATCHv8 14/26] v4l: s5p-tv: mixer: support for dmabuf importing

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

[PATCHv8 15/26] v4l: s5p-fimc: support for dmabuf importing

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

[PATCHv8 16/26] v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call

From: Marek Szyprowski Let mmap method to use dma_mmap_coherent call. Moreover, this patch removes vb2_mmap_pfn_range from videobuf2 helpers as it was suggested by Laurent Pinchart. The function is no longer used in vb2 code. Signed-off-by: Marek Szyprowski Signed-off-by: Tomasz Stanislawski

[PATCHv8 17/26] Documentation: media: description of DMABUF exporting in V4L2

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

[PATCHv8 19/26] v4l: vb2: add buffer exporting via dmabuf

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

[PATCHv8 20/26] v4l: vb2-dma-contig: add support for DMABUF exporting

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 | 204 1 file changed, 204 insertions(+) diff --git a/drivers/media

[PATCHv8 21/26] v4l: vb2-dma-contig: add reference counting for a device from allocator context

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 --- drivers/media/video/videobuf2-dma-contig.c |5 +++

[PATCHv8 18/26] v4l: add buffer exporting via dmabuf

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

[PATCHv8 22/26] media: vb2: fail if user ptr buffer is not correctly aligned

From: Marek Szyprowski Signed-off-by: Marek Szyprowski --- drivers/media/video/videobuf2-dma-contig.c | 10 ++ 1 file changed, 10 insertions(+) diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c index d44766e..11f4a46 100644 --- a/dr

[PATCHv8 23/26] v4l: vb2: add support for DMA_ATTR_NO_KERNEL_MAPPING

From: Marek Szyprowski Signed-off-by: Marek Szyprowski --- drivers/media/video/atmel-isi.c |2 +- drivers/media/video/blackfin/bfin_capture.c |2 +- drivers/media/video/marvell-ccic/mcam-core.c |3 ++- drivers/media/video/mx2_camera.c |2 +- drivers/med

[PATCHv8 24/26] v4l: s5p-fimc: support for dmabuf exporting

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

[PATCHv8 25/26] v4l: s5p-tv: mixer: support for dmabuf exporting

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

[PATCHv8 26/26] v4l: s5p-mfc: support for dmabuf exporting

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 | 18 ++ drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 18

Re: [PATCHv8 20/26] v4l: vb2-dma-contig: add support for DMABUF exporting

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

Re: [PATCHv8 01/26] v4l: Add DMABUF as a memory type

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 >> >> Adds DMABUF memory type to v4l framework. Also adds the related

Re: [PATCHv8 02/26] Documentation: media: description of DMABUF importing in V4L2

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 Sta

Re: [PATCHv8 13/26] v4l: vivi: support for dmabuf importing

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. >

Re: [PATCHv8 18/26] v4l: add buffer exporting via dmabuf

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. Ne

Re: [PATCHv8 18/26] v4l: add buffer exporting via dmabuf

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

Re: [PATCHv8 21/26] v4l: vb2-dma-contig: add reference counting for a device from allocator context

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 ex

[PATCHv9 00/25] Integration of videobuf2 with DMABUF

to use dma_mmap_coherent call v4l: vb2-dma-contig: fail if user ptr buffer is not correctly aligned 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 dm

[PATCHv9 01/25] v4l: Add DMABUF as a memory type

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

[PATCHv9 02/25] Documentation: media: description of DMABUF importing in V4L2

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

[PATCHv9 03/25] v4l: vb2: add support for shared buffer (dma_buf)

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

[PATCHv9 04/25] v4l: vb: remove warnings about MEMORY_DMABUF

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

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