linux-toradex.git/include/media/videobuf2-memops.h, branch v5.0

media: vb2: add cross references at memops and v4l2 kernel-doc markups

2017-12-18T17:27:41+00:00

Add cross-references where needed and add periods at the end of
each kernel-doc paragraph, in order to make it coherent with other
VB2 descriptions.

Acked-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

[media] vb2: convert vb2_vmarea_handler refcount from atomic_t to refcount_t

2017-04-05T18:31:57+00:00

Use refcount_t to manage the refcount to the memory type specific buffer
videobuf2 buffer implementations. refcount_t is better suitable for the
purpose than atomic_t.

Signed-off-by: Elena Reshetova 
Signed-off-by: Hans Liljestrand 
Signed-off-by: Kees Cook 
Signed-off-by: David Windsor 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

[media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2

2015-10-01T11:48:18+00:00

Make videobuf2-v4l2 as a wrapper of videobuf2-core for v4l2-use.
And replace videobuf2-core.h with videobuf2-v4l2.h.
This renaming change should be accompanied by the modifications
of all device drivers that include videobuf2-core.h.
It can be done with just running this shell script.

replace()
{
str1=$1
str2=$2
dir=$3
for file in $(find $dir -name *.h -o -name *.c -o -name Makefile)
do
    echo $file
    sed "s/$str1/$str2/g" $file > $file.out
    mv $file.out $file
done
}

replace "videobuf2-core" "videobuf2-v4l2" "include/media/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/media/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/usb/gadget/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/staging/media/"

Signed-off-by: Junghak Sung 
Signed-off-by: Geunyoung Kim 
Acked-by: Seung-Woo Kim 
Acked-by: Inki Dae 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

Merge tag 'media/v4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2015-09-11T23:42:39+00:00

Pull media updates from Mauro Carvalho Chehab:
 "A series of patches that move part of the code used to allocate memory
  from the media subsystem to the mm subsystem"

[ The mm parts have been acked by VM people, and the series was
  apparently in -mm for a while   - Linus ]

* tag 'media/v4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] drm/exynos: Convert g2d_userptr_get_dma_addr() to use get_vaddr_frames()
  [media] media: vb2: Remove unused functions
  [media] media: vb2: Convert vb2_dc_get_userptr() to use frame vector
  [media] media: vb2: Convert vb2_vmalloc_get_userptr() to use frame vector
  [media] media: vb2: Convert vb2_dma_sg_get_userptr() to use frame vector
  [media] vb2: Provide helpers for mapping virtual addresses
  [media] media: omap_vout: Convert omap_vout_uservirt_to_phys() to use get_vaddr_pfns()
  [media] mm: Provide new get_vaddr_frames() helper
  [media] vb2: Push mmap_sem down to memops

[media] videobuf2-memops.h: add to device-drivers DocBook

2015-08-22T12:05:54+00:00

The comment metadata was wrong:

Warning(.//include/media/videobuf2-memops.h:25): cannot understand function prototype: 'struct vb2_vmarea_handler '
Warning(.//include/media/videobuf2-memops.h): no structured comments found

Fix and add to DocBook.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Jonathan Corbet

[media] media: vb2: Remove unused functions

2015-08-16T16:15:21+00:00

Conversion to the use of pinned pfns made some functions unused. Remove
them. Also there's no need to lock mmap_sem in __buf_prepare() anymore.

Tested-by: Marek Szyprowski 
Signed-off-by: Jan Kara 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] vb2: Provide helpers for mapping virtual addresses

2015-08-16T16:10:42+00:00

Provide simple helper functions to map virtual address range into an
array of pfns / pages.

Tested-by: Marek Szyprowski 
Signed-off-by: Jan Kara 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call

2012-11-25T19:20:25+00:00

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 
Acked-by: Laurent Pinchart 
Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] Update Pawel Osciak's e-mail address

2011-03-22T07:55:05+00:00

Signed-off-by: Pawel Osciak 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: videobuf2: add generic memory handling routines

2011-03-21T23:31:34+00:00

Add generic memory handling routines for userspace pointer handling,
contiguous memory verification and mapping.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Pawel Osciak 
Signed-off-by: Kyungmin Park 
CC: Pawel Osciak 
Reviewed-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab