<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-dev/drivers/media/common/videobuf2, branch master</title>
<subtitle>Linux kernel development work - see feature branches</subtitle>
<id>https://git.zx2c4.com/linux-dev/atom/drivers/media/common/videobuf2?h=master</id>
<link rel='self' href='https://git.zx2c4.com/linux-dev/atom/drivers/media/common/videobuf2?h=master'/>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/'/>
<updated>2022-08-30T12:44:45Z</updated>
<entry>
<title>media: videobuf2: Remove vb2_find_timestamp()</title>
<updated>2022-08-30T12:44:45Z</updated>
<author>
<name>Ezequiel Garcia</name>
<email>ezequiel@vanguardiasur.com.ar</email>
</author>
<published>2022-07-18T22:02:11Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=2801f6f30f11dfe790a7f2cd63e004e10057a952'/>
<id>urn:sha1:2801f6f30f11dfe790a7f2cd63e004e10057a952</id>
<content type='text'>
Now that we've transitioned all users to vb2_find_buffer API,
remove the unused vb2_find_timestamp().

Signed-off-by: Ezequiel Garcia &lt;ezequiel@vanguardiasur.com.ar&gt;
Acked-by: Tomasz Figa &lt;tfiga@chromium.org&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: vb2: videobuf -&gt; videobuf2</title>
<updated>2022-08-29T13:38:09Z</updated>
<author>
<name>Hans Verkuil</name>
<email>hverkuil-cisco@xs4all.nl</email>
</author>
<published>2022-08-10T13:01:23Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=3e947c36af524b382827f584dba6d47317394b41'/>
<id>urn:sha1:3e947c36af524b382827f584dba6d47317394b41</id>
<content type='text'>
It is confusing to use the term 'videobuf' or 'video-buf' since that
usually refers to the old videobuf version 1 framework. Rename to
'videobuf2' or vb2.

Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: videobuf2: Introduce vb2_find_buffer()</title>
<updated>2022-07-17T10:10:11Z</updated>
<author>
<name>Ezequiel Garcia</name>
<email>ezequiel@collabora.com</email>
</author>
<published>2022-07-11T21:11:34Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=9d042e457ef8e3f883f0cba8a1eed633906deb78'/>
<id>urn:sha1:9d042e457ef8e3f883f0cba8a1eed633906deb78</id>
<content type='text'>
All users of vb2_find_timestamp() combine it with vb2_get_buffer()
to retrieve a videobuf2 buffer, given a u64 timestamp.

Introduce an API for this use-case. Users will be converted to the new
API as follow-up commits.

Signed-off-by: Ezequiel Garcia &lt;ezequiel@collabora.com&gt;
Acked-by: Tomasz Figa &lt;tfiga@chromium.org&gt;
Reviewed-by: Philipp Zabel &lt;p.zabel@pengutronix.de&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: videobuf2-dma-sg.c: kvmalloc_array -&gt; kvcalloc</title>
<updated>2022-05-13T09:02:22Z</updated>
<author>
<name>Hans Verkuil</name>
<email>hverkuil-cisco@xs4all.nl</email>
</author>
<published>2022-05-02T07:16:25Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=d5a8099c7512d94da2fd8cf99b8451278346cfcc'/>
<id>urn:sha1:d5a8099c7512d94da2fd8cf99b8451278346cfcc</id>
<content type='text'>
Fixes smatch warning:

drivers/media/common/videobuf2/videobuf2-dma-sg.c:129 vb2_dma_sg_alloc() warn: Please consider using kvcalloc instead

Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
Acked-by: Sakari Ailus &lt;sakari.ailus@linux.intel.com&gt;
Reviewed-by: Laurent Pinchart &lt;laurent.pinchart@ideasonboard.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: videobuf2-v4l2: Expose vb2_queue_is_busy() to drivers</title>
<updated>2022-05-13T09:02:21Z</updated>
<author>
<name>Laurent Pinchart</name>
<email>laurent.pinchart+renesas@ideasonboard.com</email>
</author>
<published>2022-03-18T17:44:35Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=7101d1279917e5c7fe897c275c5a0727fe90f3e3'/>
<id>urn:sha1:7101d1279917e5c7fe897c275c5a0727fe90f3e3</id>
<content type='text'>
vb2 queue ownership is managed by the ioctl handler helpers
(vb2_ioctl_*). There are however use cases where drivers can benefit
from checking queue ownership, for instance when open-coding an ioctl
handler that needs to perform additional checks before calling the
corresponding vb2 operation.

Expose the vb2_queue_is_busy() function in the videobuf2-v4l2.h header,
and change its first argument to a struct vb2_queue pointer as the
function name implies it operates on a queue, not a video_device.

Signed-off-by: Laurent Pinchart &lt;laurent.pinchart+renesas@ideasonboard.com&gt;
Reviewed-by: Kieran Bingham &lt;kieran.bingham+renesas@ideasonboard.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>Merge tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm</title>
<updated>2022-03-24T23:19:43Z</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2022-03-24T23:19:43Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=b14ffae378aa1db993e62b01392e70d1e585fb23'/>
<id>urn:sha1:b14ffae378aa1db993e62b01392e70d1e585fb23</id>
<content type='text'>
Pull drm updates from Dave Airlie:
 "Lots of work all over, Intel improving DG2 support, amdkfd CRIU
  support, msm new hw support, and faster fbdev support.

  dma-buf:
   - rename dma-buf-map to iosys-map

  core:
   - move buddy allocator to core
   - add pci/platform init macros
   - improve EDID parser deep color handling
   - EDID timing type 7 support
   - add GPD Win Max quirk
   - add yes/no helpers to string_helpers
   - flatten syncobj chains
   - add nomodeset support to lots of drivers
   - improve fb-helper clipping support
   - add default property value interface

  fbdev:
   - improve fbdev ops speed

  ttm:
   - add a backpointer from ttm bo-&gt;ttm resource

  dp:
   - move displayport headers
   - add a dp helper module

  bridge:
   - anx7625 atomic support, HDCP support

  panel:
   - split out panel-lvds and lvds bindings
   - find panels in OF subnodes

  privacy:
   - add chromeos privacy screen support

  fb:
   - hot unplug fw fb on forced removal

  simpledrm:
   - request region instead of marking ioresource busy
   - add panel oreintation property

  udmabuf:
   - fix oops with 0 pages

  amdgpu:
   - power management code cleanup
   - Enable freesync video mode by default
   - RAS code cleanup
   - Improve VRAM access for debug using SDMA
   - SR-IOV rework special register access and fixes
   - profiling power state request ioctl
   - expose IP discovery via sysfs
   - Cyan skillfish updates
   - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates
   - expose benchmark tests via debugfs
   - add module param to disable XGMI for testing
   - GPU reset debugfs register dumping support

  amdkfd:
   - CRIU support
   - SDMA queue fixes

  radeon:
   - UVD suspend fix
   - iMac backlight fix

  i915:
   - minimal parallel submission for execlists
   - DG2-G12 subplatform added
   - DG2 programming workarounds
   - DG2 accelerated migration support
   - flat CCS and CCS engine support for XeHP
   - initial small BAR support
   - drop fake LMEM support
   - ADL-N PCH support
   - bigjoiner updates
   - introduce VMA resources and async unbinding
   - register definitions cleanups
   - multi-FBC refactoring
   - DG1 OPROM over SPI support
   - ADL-N platform enabling
   - opregion mailbox #5 support
   - DP MST ESI improvements
   - drm device based logging
   - async flip optimisation for DG2
   - CPU arch abstraction fixes
   - improve GuC ADS init to work on aarch64
   - tweak TTM LRU priority hint
   - GuC 69.0.3 support
   - remove short term execbuf pins

  nouveau:
   - higher DP/eDP bitrates
   - backlight fixes

  msm:
   - dpu + dp support for sc8180x
   - dp support for sm8350
   - dpu + dsi support for qcm2290
   - 10nm dsi phy tuning support
   - bridge support for dp encoder
   - gpu support for additional 7c3 SKUs

  ingenic:
   - HDMI support for JZ4780
   - aux channel EDID support

  ast:
   - AST2600 support
   - add wide screen support
   - create DP/DVI connectors

  omapdrm:
   - fix implicit dma_buf fencing

  vc4:
   - add CSC + full range support
   - better display firmware handoff

  panfrost:
   - add initial dual-core GPU support

  stm:
   - new revision support
   - fb handover support

  mediatek:
   - transfer display binding document to yaml format.
   - add mt8195 display device binding.
   - allow commands to be sent during video mode.
   - add wait_for_event for crtc disable by cmdq.

  tegra:
   - YUV format support

  rcar-du:
   - LVDS support for M3-W+ (R8A77961)

  exynos:
   - BGR pixel format for FIMD device"

* tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm: (1529 commits)
  drm/i915/display: Do not re-enable PSR after it was marked as not reliable
  drm/i915/display: Fix HPD short pulse handling for eDP
  drm/amdgpu: Use drm_mode_copy()
  drm/radeon: Use drm_mode_copy()
  drm/amdgpu: Use ternary operator in `vcn_v1_0_start()`
  drm/amdgpu: Remove pointless on stack mode copies
  drm/amd/pm: fix indenting in __smu_cmn_reg_print_error()
  drm/amdgpu/dc: fix typos in comments
  drm/amdgpu: fix typos in comments
  drm/amd/pm: fix typos in comments
  drm/amdgpu: Add stolen reserved memory for MI25 SRIOV.
  drm/amdgpu: Merge get_reserved_allocation to get_vbios_allocations.
  drm/amdkfd: evict svm bo worker handle error
  drm/amdgpu/vcn: fix vcn ring test failure in igt reload test
  drm/amdgpu: only allow secure submission on rings which support that
  drm/amdgpu: fixed the warnings reported by kernel test robot
  drm/amd/display: 3.2.177
  drm/amd/display: [FW Promotion] Release 0.0.108.0
  drm/amd/display: Add save/restore PANEL_PWRSEQ_REF_DIV2
  drm/amd/display: Wait for hubp read line for Pollock
  ...
</content>
</entry>
<entry>
<title>media: Makefiles: sort entries where it fits</title>
<updated>2022-03-14T08:42:59Z</updated>
<author>
<name>Mauro Carvalho Chehab</name>
<email>mchehab@kernel.org</email>
</author>
<published>2022-03-09T13:17:02Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=5c89357a7a0f17c6198bb28614913fb1eb284615'/>
<id>urn:sha1:5c89357a7a0f17c6198bb28614913fb1eb284615</id>
<content type='text'>
Alphabetically sort entries at the Makefiles per group,
in ASCII order, e. g., using the output of:

	$ LC_ALL=C sort Makefile |grep obj-y
	...
	$ LC_ALL=C sort Makefile |grep obj.*CONFIG
	...

Reviewed-by: Laurent Pinchart &lt;laurent.pinchart@ideasonboard.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: videobuf2-dma-contig: Invalidate vmap range before DMA range</title>
<updated>2022-03-07T10:05:17Z</updated>
<author>
<name>Sergey Senozhatsky</name>
<email>senozhatsky@chromium.org</email>
</author>
<published>2022-01-19T08:14:17Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=553189144c9e27bf047b392ae377c522246076f7'/>
<id>urn:sha1:553189144c9e27bf047b392ae377c522246076f7</id>
<content type='text'>
Christoph suggests [1] that invalidating vmap range before
direct mapping range makes more sense.

[1]: https://lore.kernel.org/all/20220111085958.GA22795@lst.de/

Signed-off-by: Sergey Senozhatsky &lt;senozhatsky@chromium.org&gt;
Acked-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Reviewed-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>dma-buf-map: Rename to iosys-map</title>
<updated>2022-02-08T00:35:35Z</updated>
<author>
<name>Lucas De Marchi</name>
<email>lucas.demarchi@intel.com</email>
</author>
<published>2022-02-04T17:05:41Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=7938f4218168ae9fc4bdddb15976f9ebbae41999'/>
<id>urn:sha1:7938f4218168ae9fc4bdddb15976f9ebbae41999</id>
<content type='text'>
Rename struct dma_buf_map to struct iosys_map and corresponding APIs.
Over time dma-buf-map grew up to more functionality than the one used by
dma-buf: in fact it's just a shim layer to abstract system memory, that
can be accessed via regular load and store, from IO memory that needs to
be acessed via arch helpers.

The idea is to extend this API so it can fulfill other needs, internal
to a single driver. Example: in the i915 driver it's desired to share
the implementation for integrated graphics, which uses mostly system
memory, with discrete graphics, which may need to access IO memory.

The conversion was mostly done with the following semantic patch:

	@r1@
	@@
	- struct dma_buf_map
	+ struct iosys_map

	@r2@
	@@
	(
	- DMA_BUF_MAP_INIT_VADDR
	+ IOSYS_MAP_INIT_VADDR
	|
	- dma_buf_map_set_vaddr
	+ iosys_map_set_vaddr
	|
	- dma_buf_map_set_vaddr_iomem
	+ iosys_map_set_vaddr_iomem
	|
	- dma_buf_map_is_equal
	+ iosys_map_is_equal
	|
	- dma_buf_map_is_null
	+ iosys_map_is_null
	|
	- dma_buf_map_is_set
	+ iosys_map_is_set
	|
	- dma_buf_map_clear
	+ iosys_map_clear
	|
	- dma_buf_map_memcpy_to
	+ iosys_map_memcpy_to
	|
	- dma_buf_map_incr
	+ iosys_map_incr
	)

	@@
	@@
	- #include &lt;linux/dma-buf-map.h&gt;
	+ #include &lt;linux/iosys-map.h&gt;

Then some files had their includes adjusted and some comments were
update to remove mentions to dma-buf-map.

Since this is not specific to dma-buf anymore, move the documentation to
the "Bus-Independent Device Accesses" section.

v2:
  - Squash patches

v3:
  - Fix wrong removal of dma-buf.h from MAINTAINERS
  - Move documentation from dma-buf.rst to device-io.rst

v4:
  - Change documentation title and level

Signed-off-by: Lucas De Marchi &lt;lucas.demarchi@intel.com&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Sumit Semwal &lt;sumit.semwal@linaro.org&gt;
Acked-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220204170541.829227-1-lucas.demarchi@intel.com
</content>
</entry>
<entry>
<title>Merge tag 'v5.16-rc4' into media_tree</title>
<updated>2021-12-07T10:29:41Z</updated>
<author>
<name>Mauro Carvalho Chehab</name>
<email>mchehab+huawei@kernel.org</email>
</author>
<published>2021-12-07T10:29:41Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/linux-dev/commit/?id=4383cfa18c5bbc5b9b6a9e77adc12aec1c20b72d'/>
<id>urn:sha1:4383cfa18c5bbc5b9b6a9e77adc12aec1c20b72d</id>
<content type='text'>
Linux 5.16-rc4

* tag 'v5.16-rc4': (984 commits)
  Linux 5.16-rc4
  KVM: SVM: Do not terminate SEV-ES guests on GHCB validation failure
  KVM: SEV: Fall back to vmalloc for SEV-ES scratch area if necessary
  KVM: SEV: Return appropriate error codes if SEV-ES scratch setup fails
  parisc: Mark cr16 CPU clocksource unstable on all SMP machines
  parisc: Fix "make install" on newer debian releases
  sched/uclamp: Fix rq-&gt;uclamp_max not set on first enqueue
  preempt/dynamic: Fix setup_preempt_mode() return value
  cifs: avoid use of dstaddr as key for fscache client cookie
  cifs: add server conn_id to fscache client cookie
  cifs: wait for tcon resource_id before getting fscache super
  cifs: fix missed refcounting of ipc tcon
  x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
  x86/entry: Use the correct fence macro after swapgs in kernel CR3
  fget: check that the fd still exists after getting a ref to it
  x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
  x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
  powercap: DTPM: Drop unused local variable from init_dtpm()
  io-wq: don't retry task_work creation failure on fatal conditions
  serial: 8250_bcm7271: UART errors after resuming from S2
  ...
</content>
</entry>
</feed>
