<feed xmlns='http://www.w3.org/2005/Atom'>
<title>wireguard-linux/drivers/media/platform/mediatek, branch update-toolchain</title>
<subtitle>WireGuard for the Linux kernel</subtitle>
<id>https://git.zx2c4.com/wireguard-linux/atom/drivers/media/platform/mediatek?h=update-toolchain</id>
<link rel='self' href='https://git.zx2c4.com/wireguard-linux/atom/drivers/media/platform/mediatek?h=update-toolchain'/>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/'/>
<updated>2024-06-20T09:47:48Z</updated>
<entry>
<title>media: platform: mtk-mdp3: Add support for MT8188 MDP3 components</title>
<updated>2024-06-20T09:47:48Z</updated>
<author>
<name>AngeloGioacchino Del Regno</name>
<email>angelogioacchino.delregno@collabora.com</email>
</author>
<published>2024-03-22T09:28:45Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=7fc65b78b465b8511a503491e7c3116d46dc6c72'/>
<id>urn:sha1:7fc65b78b465b8511a503491e7c3116d46dc6c72</id>
<content type='text'>
MT8195 and MT8188 share a similar MDP3 macro-block, with minor
differences - as in, the latter supports a subset of the number
of components supported by the former, but are otherwise handled
in the same way.

Add driver data for MT8188, reusing the already present MT8195
data where possible.

Signed-off-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Reviewed-by: Fei Shao &lt;fshao@chromium.org&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
</entry>
<entry>
<title>media: mediatek: vcodec: Alloc DMA memory with DMA_ATTR_ALLOC_SINGLE_PAGES</title>
<updated>2024-06-10T08:24:11Z</updated>
<author>
<name>Douglas Anderson</name>
<email>dianders@chromium.org</email>
</author>
<published>2024-04-22T17:03:59Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=b785ea5b16c8b33bad45fdb5ce469d9236401dc8'/>
<id>urn:sha1:b785ea5b16c8b33bad45fdb5ce469d9236401dc8</id>
<content type='text'>
As talked about in commit 14d3ae2efeed ("ARM: 8507/1: dma-mapping: Use
DMA_ATTR_ALLOC_SINGLE_PAGES hint to optimize alloc"), it doesn't
really make sense to try to allocate contiguous chunks of memory for
video encoding/decoding. Let's switch the Mediatek vcodec driver to
pass DMA_ATTR_ALLOC_SINGLE_PAGES and take some of the stress off the
memory subsystem.

Signed-off-by: Douglas Anderson &lt;dianders@chromium.org&gt;
Tested-by: Fei Shao &lt;fshao@chromium.org&gt;
Reviewed-by: Fei Shao &lt;fshao@chromium.org&gt;
Reviewed-by: Nicolas Dufresne &lt;nicolas.dufresne@collabora.com&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
</entry>
<entry>
<title>media: mediatek: vcodec: Fix unreasonable data conversion</title>
<updated>2024-06-10T08:24:11Z</updated>
<author>
<name>Yunfei Dong</name>
<email>yunfei.dong@mediatek.com</email>
</author>
<published>2024-04-12T03:57:31Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=48d85de244047eabe07c5040af12dfa736d61d6c'/>
<id>urn:sha1:48d85de244047eabe07c5040af12dfa736d61d6c</id>
<content type='text'>
Both 'bs_dma' and 'dma_addr' are integers. No need to convert the
type from dma_addr_t to uint64_t again.

Fixes: d353c3c34af0 ("media: mediatek: vcodec: support 36 bits physical address")

Signed-off-by: Yunfei Dong &lt;yunfei.dong@mediatek.com&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
</entry>
<entry>
<title>media: mediatek: vcodec: Handle invalid decoder vsi</title>
<updated>2024-06-10T08:24:11Z</updated>
<author>
<name>Irui Wang</name>
<email>irui.wang@mediatek.com</email>
</author>
<published>2024-03-21T01:47:54Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=59d438f8e02ca641c58d77e1feffa000ff809e9f'/>
<id>urn:sha1:59d438f8e02ca641c58d77e1feffa000ff809e9f</id>
<content type='text'>
Handle an invalid decoder vsi in vpu_dec_init to ensure the decoder vsi
is valid for future use.

Fixes: 590577a4e525 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver")

Signed-off-by: Irui Wang &lt;irui.wang@mediatek.com&gt;
Reviewed-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
</entry>
<entry>
<title>media: mediatek: vcodec: add decoder command to support stateless decoder</title>
<updated>2024-06-10T08:24:10Z</updated>
<author>
<name>Yunfei Dong</name>
<email>yunfei.dong@mediatek.com</email>
</author>
<published>2024-03-16T08:13:44Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=792196fd34b1811d1491000c76e73805f5f827ef'/>
<id>urn:sha1:792196fd34b1811d1491000c76e73805f5f827ef</id>
<content type='text'>
The supported decoder commands are different for stateless and
stateful architectures. Add stateless decoder commands to fix
the v4l2-compliance test error below.

Codec ioctls:
    VIDIOC_ENCODER_CMD returned -1 (Inappropriate ioctl for device)
    VIDIOC_TRY_ENCODER_CMD returned -1 (Inappropriate ioctl for device)
 test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
    VIDIOC_G_ENC_INDEX returned -1 (Inappropriate ioctl for device)
 test VIDIOC_G_ENC_INDEX: OK (Not Supported)
    VIDIOC_DECODER_CMD returned -1 (Invalid argument)
    VIDIOC_TRY_DECODER_CMD returned -1 (Invalid argument)
    VIDIOC_TRY_DECODER_CMD returned -1 (Invalid argument)
    fail: v4l2-test-codecs.cpp(126): ret
 test VIDIOC_(TRY_)DECODER_CMD: FAIL

Signed-off-by: Yunfei Dong &lt;yunfei.dong@mediatek.com&gt;
Reviewed-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
</entry>
<entry>
<title>Merge tag 'media/v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media</title>
<updated>2024-05-16T15:45:44Z</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-05-16T15:45:44Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=6fd600d742744dc7ef7fc65ca26daa2b1163158a'/>
<id>urn:sha1:6fd600d742744dc7ef7fc65ca26daa2b1163158a</id>
<content type='text'>
Pull media updates from Mauro Carvalho Chehab:

 - New V4L2 ioctl VIDIOC_REMOVE_BUFS

 - experimental support for using generic metaformats on V4L2 core

 - New drivers: Intel IPU6 controller driver, Broadcom BCM283x/BCM271x

 - More cleanups at atomisp driver

 - Usual bunch of driver cleanups, improvements and fixes

* tag 'media/v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (328 commits)
  media: bcm2835-unicam: Depend on COMMON_CLK
  Revert "media: v4l2-ctrls: show all owned controls in log_status"
  media: ov2740: Ensure proper reset sequence on probe()
  media: intel/ipu6: Don't print user-triggerable errors to kernel log
  media: bcm2835-unicam: Fix driver path in MAINTAINERS
  media: bcm2835-unicam: Fix a NULL vs IS_ERR() check
  media: bcm2835-unicam: Do not print error when irq not found
  media: bcm2835-unicam: Do not replace IRQ retcode during probe
  media: bcm2835-unicam: Convert to platform remove callback returning void
  media: media: intel/ipu6: Fix spelling mistake "remappinp" -&gt; "remapping"
  media: intel/ipu6: explicitly include vmalloc.h
  media: cec.h: Fix kerneldoc
  media: uvcvideo: Refactor iterators
  media: v4l: async: refactor v4l2_async_create_ancillary_links
  media: intel/ipu6: Don't re-allocate memory for firmware
  media: dvb-frontends: tda10048: Fix integer overflow
  media: tc358746: Use the correct div_ function
  media: i2c: st-mipid02: Use the correct div function
  media: tegra-vde: Refactor timeout handling
  media: stk1160: Use min macro
  ...
</content>
</entry>
<entry>
<title>media: platform: mtk-mdp3: Use refcount_t for job_count</title>
<updated>2024-05-03T10:11:23Z</updated>
<author>
<name>Ricardo Ribalda</name>
<email>ribalda@chromium.org</email>
</author>
<published>2024-04-29T15:04:51Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=7aa9066e8d9ee0a21d9e33ded7e9bdc5c6a20611'/>
<id>urn:sha1:7aa9066e8d9ee0a21d9e33ded7e9bdc5c6a20611</id>
<content type='text'>
Use an API that resembles more the actual use of job_count.

Found by cocci:
drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c:527:5-24: WARNING: atomic_dec_and_test variation before object free at line 541.
drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c:578:6-25: WARNING: atomic_dec_and_test variation before object free at line 581.

Link: https://lore.kernel.org/linux-media/20240429-fix-cocci-v3-12-3c4865f5a4b0@chromium.org
Signed-off-by: Ricardo Ribalda &lt;ribalda@chromium.org&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: mtk-vcodec: potential null pointer deference in SCP</title>
<updated>2024-05-03T06:06:51Z</updated>
<author>
<name>Fullway Wang</name>
<email>fullwaywang@outlook.com</email>
</author>
<published>2024-01-18T02:35:06Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=53dbe08504442dc7ba4865c09b3bbf5fe849681b'/>
<id>urn:sha1:53dbe08504442dc7ba4865c09b3bbf5fe849681b</id>
<content type='text'>
The return value of devm_kzalloc() needs to be checked to avoid
NULL pointer deference. This is similar to CVE-2022-3113.

Link: https://lore.kernel.org/linux-media/PH7PR20MB5925094DAE3FD750C7E39E01BF712@PH7PR20MB5925.namprd20.prod.outlook.com
Signed-off-by: Fullway Wang &lt;fullwaywang@outlook.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
<entry>
<title>media: mediatek: vcodec: fix possible unbalanced PM counter</title>
<updated>2024-04-27T08:04:30Z</updated>
<author>
<name>Eugen Hristev</name>
<email>eugen.hristev@collabora.com</email>
</author>
<published>2023-12-28T11:32:40Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=c28d4921a1e3ce0a0374b7e9d68593be8802c42a'/>
<id>urn:sha1:c28d4921a1e3ce0a0374b7e9d68593be8802c42a</id>
<content type='text'>
It is possible that mtk_vcodec_enc_pw_on fails, and in that scenario
the PM counter is not incremented, and subsequent call to
mtk_vcodec_enc_pw_off decrements the counter, leading to a PM imbalance.
Fix by bailing out of venc_if_encode in the case when mtk_vcodec_enc_pw_on
fails.

Fixes: 4e855a6efa54 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver")
Signed-off-by: Eugen Hristev &lt;eugen.hristev@collabora.com&gt;
Reviewed-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Signed-off-by: Andrzej Pietrasiewicz &lt;andrzej.p@collabora.com&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
</entry>
<entry>
<title>media: mediatek: vcodec: Only free buffer VA that is not NULL</title>
<updated>2024-04-26T10:58:33Z</updated>
<author>
<name>Fei Shao</name>
<email>fshao@chromium.org</email>
</author>
<published>2023-12-21T09:17:46Z</published>
<link rel='alternate' type='text/html' href='https://git.zx2c4.com/wireguard-linux/commit/?id=eb005c801ec70ff4307727bd3bd6e8280169ef32'/>
<id>urn:sha1:eb005c801ec70ff4307727bd3bd6e8280169ef32</id>
<content type='text'>
In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly
called only when the buffer to free exists, there are some instances
that didn't do the check and triggered warnings in practice.

We believe those checks were forgotten unintentionally. Add the checks
back to fix the warnings.

Signed-off-by: Fei Shao &lt;fshao@chromium.org&gt;
Reviewed-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Signed-off-by: Andrzej Pietrasiewicz &lt;andrzej.p@collabora.com&gt;
Signed-off-by: Sebastian Fricke &lt;sebastian.fricke@collabora.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@kernel.org&gt;
</content>
</entry>
</feed>
