| Age | Commit message (Collapse) | Author | Files | Lines |
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Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Use the helper function time_is_{before,after}_jiffies() to improve
code readability.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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According to BSP library source, H264 neighbour info buffer size needs
to be 32 kiB for H6. This is similar to H265 decoding, which also needs
double buffer size in comparison to older Cedrus core generations.
Increase buffer size to cover H6 needs. Since increase is not that big
in absolute numbers, it doesn't make sense to complicate logic for older
generations.
Issue was discovered using iommu and cross checked with BSP library
source.
Fixes: 6eb9b758e307 ("media: cedrus: Add H264 decoding support")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Some cx88 video cards may have transport stream status interrupts set
to 1 from cold start, causing errors like this:
cx88xx: cx88_print_irqbits: core:irq mpeg [0x100000] ts_err?*
cx8802: cx8802_mpeg_irq: mpeg:general errors: 0x00100000
According to CX2388x datasheet, the interrupt status register should be
cleared before enabling IRQs to stream video.
Fix it by clearing the Transport Stream Interrupt Status register.
Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
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Neighbour info buffer size needs to be 794 kiB in H6. This is actually
already indirectly mentioned in the comment, but smaller size is used
nevertheless.
Increase buffer size to cover H6 needs. Since increase is not that big
in absolute numbers, it doesn't make sense to complicate logic for older
generations.
Bug was discovered using iommu, which reported access error when trying
to play H265 video.
Fixes: 86caab29da78 ("media: cedrus: Add HEVC/H.265 decoding support")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Platform_driver probe functions aren't called with locks held
and thus don't need GFP_ATOMIC. Use GFP_KERNEL instead.
Problem found with Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Pci_driver probe functions aren't called with locks held
and thus don't need GFP_ATOMIC. Use GFP_KERNEL instead.
Problem found with Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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VP9 support for GXM appears to have been missed from the original
codec submission [0] but it works well, so let's add support.
[0] https://github.com/torvalds/linux/commit/00c43088aa680989407b6afbda295f67b3f123f1
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: ASUSTeK Computer Inc.
Product Name: A6JC
Version: 1.0
Serial Number: XXXXXXXXXXXXXXXXX
UUID: XXXXXXXXXXXXXXXXX
Wake-up Type: Power Switch
SKU Number: To Be Filled By O.E.M.
Family: To Be Filled By O.E.M.
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: ASUSTeK Computer Inc.
Product Name: A6JC
Version: 1.0
Serial Number: XXXXXXXXXXXXXXXXX
Asset Tag: To Be Filled By O.E.M.
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: To Be Filled By O.E.M.
Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: MEDIA ML <linux-media@vger.kernel.org>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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When error occurs in parsing jpeg, the slot isn't acquired yet, it may
be the default value MXC_MAX_SLOTS.
If the driver access the slot using the incorrect slot number, it will
access array out of bounds.
The result is the driver will change num_domains, which follows
slot_data in struct mxc_jpeg_dev.
Then the driver won't detach the pm domain at rmmod, which will lead to
kernel panic when trying to insmod again.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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With gstreamer 1.19.3 all attempts to capture video in YUV formats on
our Allwinner H3-based custom board with an ov5640 sensor result in
pipeline crashes with the following messages:
Device '/dev/video0' does not support 2:0:0:0 colorimetry
Additional debug info:
Device wants 2:0:0:0 colorimetry
Fix this by setting the correct colorspace in sun6i_video_try_fmt().
Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Call i2c_unregister_device(audio) on this error path.
Fixes: d3b2ccd9e307 ("[media] s2250: convert to the control framework")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Currently, if job is not completed for whatever reason, userspace
application can hang on ioctl and thus become unkillable.
In order to prevent that, implement watchdog, which will complete job
after 2 seconds with error state.
Concept is borrowed from hantro driver.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The print function dev_err() is redundant because platform_get_irq()
already prints an error.
Eliminate the follow coccicheck warning:
./drivers/media/platform/imx-jpeg/mxc-jpeg.c:2025:3-10: line 2025 is
redundant because platform_get_irq() already prints an error
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Fix following includecheck warning:
./drivers/media/platform/aspeed-video.c: linux/videodev2.h is included
more than once.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Variable idx is being assigned a value that is never read, it is being
re-assigned a new value in the following for-loop. The assignment is
redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Variable id is being assigned a value that is never read. The
assignment is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The variable plane_fmt is being initialized with a value that is never
read, it is being re-assigned a new value on each iteration of a for
loop. The initialization is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The variable n is being assigned a value that is never read, it is
being reassigned a different value a few statements later. The
assignment is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Init some of VP9 frame decode params to default value.
Fixes: b88dbe38dca8 ("media: uapi: Add VP9 stateless decoder controls")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The only usage of go7007_snd_device_ops is to pass its address to
snd_device_new() which takes a pointer to const struct snd_device_ops.
Make it const to allow the compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The static array lcr2vbi is read-only so it make sense to make
it const.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The commit 47677e51e2a4("[media] em28xx: Only deallocate struct
em28xx after finishing all extensions") adds kref_get to many init
functions (e.g., em28xx_audio_init). However, kref_init is called too
late in em28xx_usb_probe, since em28xx_init_dev before will invoke
those init functions and call kref_get function. Then refcount bug
occurs in my local syzkaller instance.
Fix it by moving kref_init before em28xx_init_dev. This issue occurs
not only in dev but also dev->dev_next.
Fixes: 47677e51e2a4 ("[media] em28xx: Only deallocate struct em28xx after finishing all extensions")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Make use of the struct_size() helper instead of an open-coded version,
in order to avoid any potential type mistakes or integer overflows that,
in the worst scenario, could lead to heap overflows.
Also, address the following sparse warnings:
drivers/media/usb/pwc/pwc-uncompress.c:44:44: warning: using sizeof on a flexible structure
Link: https://github.com/KSPP/linux/issues/174
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Let's v4l2 framework use a free /dev/videoX node for decode and encoder.
For the decoder call video_register_device() before register the media
controller device so the mapping between ins correctly done.
Since the registering sequence has changed rework exiting errors case too.
Fixes: 590577a4e525 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver")
Fixes: 4e855a6efa54 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver")
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Use of_device_get_match_data() to simplify the code.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Current settings for video capture rgb-2-yuv is BT.601(studio swing),
but JFIF uses BT.601(full swing) to deocde. This mismatch will lead
to incorrect color. For example, input RGB value, (0, 0, 255), will
become (16, 16, 235) after jpg decoded.
Add an enum, aspeed_video_capture_format, to define VR008[7:6]
capture format and correct default settings for video capture to fix
the problem.
VR008[7:6] decides the data format for video capture as below:
* 00: CCIR601 studio swing compliant YUV format
* 01: CCIR601 full swing compliant YUV format
* 10: RGB format
* 11: Gray color mode
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Using stable-signal in resolution detection, and try detection again
if unstable.
VE_MODE_DETECT_EXTSRC_ADC: 1 if video source is from ADC output.
VE_MODE_DETECT_H_STABLE: 1 if horizontal signal detection is stable.
VE_MODE_DETECT_V_STABLE: 1 if vertical signal detection is stable.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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VE_MODE_DT_HOR_TOLER: the tolerance in detecting for stable horizontal
signal.
VE_MODE_DT_VER_TOLER: the tolerance in detecting for stable vertical
signal.
VE_MODE_DT_HOR_STABLE: the minimum required count in detecting stable
HSYNC signal to set mode detection horizontal signal stable.
VE_MODE_DT_VER_STABLE: the minimum required count in detecting stable
VSYNC signal to set mode detection vertical signal stable.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Add comments to describe video-stat and 'struct aspeed_video'.
Add macro, ASPEED_VIDEO_V4L2_MIN_BUF_REQ, to describe the buffers
needed.
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: drop docbook tags, not needed]
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When Gen3 support was first added to this R-Car VIN and CSI-2 driver the
routing was centred around the CHSEL register which multiplexes the
different parallel buses that sit between the CSI-2 receivers source
side and the VIN dma engines. This was a bad design as the multiplexing
do allow for only a few combinations and do not play nice with many
video streams in the system.
For example it's only possible for CSI-2 Virtual Channels 0 and 1 of any
given CSI-2 receiver to be used together with the scaler.
Later datasheets have expanded the documentation and it is now possible
to improve on this design by allowing any Virtual Channel to be routed
to any R-Car VIN instance, provided that there exists a parallel bus
between them. This increases the flexibility as all Virtual Channels can
now be used together with the scaler for example.
The redesign is not however perfect. While the new design allows for
many more routes, two constrains limit a small portion of routes that
was possible in the old design but are no more.
- It is no longer possible to route the same CSI-2 and VC to more then
one VIN at a time. This was theoretically possible before if the
specific SoC allowed for the same CSI-2 and VC to be routed to two
different VIN capture groups.
- It is no longer possible to simultaneously mix links from two CSI-2 IP
blocks to the same VIN capture group.
For example if VIN2 is capturing from CSI40 then VIN{0,1,3} must also
capture from CSI40. While VIN{4,5,6,7} is still free to capture from
any other CSI-2 IP in the system. Once all VIN{0,1,2,3} links to CSI40
are disabled that VIN capture group is free again to capture from any
other CSI-2 IP it is connected to.
At the core of the redesign is greater cooperator of the R-Car VIN and
CSI-2 drivers in configuring the routing. The VIN driver is after this
change only responsible to configure the full VIN capture groups
parallel buses to be to a particular CSI-2 IP. While the configuration
of which CSI-2 Virtual Channel is outputted on which of the R-Car CSI-2
IP output ports is handled by the CSI-2 driver.
Before this change the CSI-2 Virtual Channel to output port was static
in the CSI-2 driver and the different links only manipulated the VIN
capture groups CHSEL register. With this change both the CHSEl register
and the CSI-2 routing VCDT registers are modified for greater
flexibility.
This change touches both the R-Car VIN and R-Car CSI-2 drivers in the
same commit as both drivers cooperate closely and one change without the
other would more or less break video capture.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: fix two trivial checkpatch whitespace issues]
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In preparation of creating more links to allow for full Virtual Channel
routing within the CSI-2 block break out the link creation logic to a
helper function as the logic will grow in future work.
There is no functional change.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The code has grown organically and a lot of checks are performed for
the CSI-2 use-case even if the link notify is for a subdevice connected
to the parallel interface.
Before reworking the CSI-2 routing logic split the CSI-2 and parallel
link notify code in two separate blocks to make it clearer. There is no
functional change.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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kstrdup() is a memory allocation function which can return NULL when
some internal memory errors happen. It is better to check the return
value of it to catch the error in time during the setup of viafb.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Since MMC core handles runtime PM reference counting, we can avoid doing
redundant runtime PM work in the driver. That means the only thing
commit 5b4258f6721f ("misc: rtsx: rts5249 support runtime PM") misses is
to always enable runtime PM, to let its parent driver enable ASPM in the
runtime idle routine.
Fixes: 7499b529d97f ("mmc: rtsx: Use pm_runtime_{get,put}() to handle runtime PM")
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220216055435.2335297-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When unbinding/binding a driver with DMA mapped memory, the DMA map is
not freed before the driver is reloaded. This leads to a memory leak
when the DMA map is overwritten when reprobing the driver.
This can be reproduced with a platform driver having a dma-range:
dummy {
...
#address-cells = <0x2>;
#size-cells = <0x2>;
ranges;
dma-ranges = <...>;
...
};
and then unbinding/binding it:
~# echo soc:dummy >/sys/bus/platform/drivers/<driver>/unbind
DMA map object 0xffffff800b0ae540 still being held by &pdev->dev
~# echo soc:dummy >/sys/bus/platform/drivers/<driver>/bind
~# echo scan > /sys/kernel/debug/kmemleak
~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffffff800b0ae540 (size 64):
comm "sh", pid 833, jiffies 4295174550 (age 2535.352s)
hex dump (first 32 bytes):
00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 80 00 00 00 00 00 00 00 80 00 00 00 00 ................
backtrace:
[<ffffffefd1694708>] create_object.isra.0+0x108/0x344
[<ffffffefd1d1a850>] kmemleak_alloc+0x8c/0xd0
[<ffffffefd167e2d0>] __kmalloc+0x440/0x6f0
[<ffffffefd1a960a4>] of_dma_get_range+0x124/0x220
[<ffffffefd1a8ce90>] of_dma_configure_id+0x40/0x2d0
[<ffffffefd198b68c>] platform_dma_configure+0x5c/0xa4
[<ffffffefd198846c>] really_probe+0x8c/0x514
[<ffffffefd1988990>] __driver_probe_device+0x9c/0x19c
[<ffffffefd1988cd8>] device_driver_attach+0x54/0xbc
[<ffffffefd1986634>] bind_store+0xc4/0x120
[<ffffffefd19856e0>] drv_attr_store+0x30/0x44
[<ffffffefd173c9b0>] sysfs_kf_write+0x50/0x60
[<ffffffefd173c1c4>] kernfs_fop_write_iter+0x124/0x1b4
[<ffffffefd16a013c>] new_sync_write+0xdc/0x160
[<ffffffefd16a256c>] vfs_write+0x23c/0x2a0
[<ffffffefd16a2758>] ksys_write+0x64/0xec
To prevent this we should free the dma_range_map when the device is
released.
Fixes: e0d072782c73 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Cc: stable <stable@vger.kernel.org>
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Link: https://lore.kernel.org/r/20220216094128.4025861-1-marten.lindahl@axis.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the second 'are' and 'the'.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20220212143233.2648872-1-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add OF reconfiguration notifier handler for WEIM bus to setup Chip
Select timings on runtime creation of child devices.
However, it is not possible to load another DT overlay with conflicting
CS timings with previously loaded overlay, even if the first one is
unloaded. The reason is that there is no acces to CS timing property of
a device node being removed, thus we can't track which of configured CS
are available for re-configuration.
Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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This code dereferences "skb" after calling dev_kfree_skb().
Fixes: 2dc95a4d30ed ("net: Add dm9051 driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220221105440.GA10045@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The f_CNT register (at the PCI config. address 0x78) is 16-bit, not
8-bit! The bug was there from the very start... :-(
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Even if PSR is allowed for a present GPU, there might be no eDP link
which supports PSR.
Fixes: 708978487304 ("drm/amdgpu/display: Only set vblank_disable_immediate when PSR is not enabled")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add a quirk in sienna_cichlid_ppt.c to fix some OEM SKU
specific stability issues.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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MMHUB PG needs to be disabled for Picasso for stability reasons.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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For DCN3/3.01/3.02 at least these use the fpu.
v2: squash in build fix for when DCN is not enabled (Leo)
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Care was taken to support kcryptd_io_read being called from crypt_map
or workqueue. Use of an intermediate CRYPT_MAP_READ_GFP gfp_t
(defined as GFP_NOWAIT) should protect from maintenance burden if that
flag were to change for some reason.
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Where possible, switch from early bio-based IO accounting (at the time
DM clones each incoming bio) to late IO accounting just before each
remapped bio is issued to underlying device via submit_bio_noacct().
Allows more precise bio-based IO accounting for DM targets that use
their own workqueues to perform additional processing of each bio in
conjunction with their DM_MAPIO_SUBMITTED return from their map
function. When a target is updated to use dm_submit_bio_remap() they
must also set ti->accounts_remapped_io to true.
Use xchg() in start_io_acct(), as suggested by Mikulas, to ensure each
IO is only started once. The xchg race only happens if
__send_duplicate_bios() sends multiple bios -- that case is reflected
via tio->is_duplicate_bio. Given the niche nature of this race, it is
best to avoid any xchg performance penalty for normal IO.
For IO that was never submitted with dm_bio_submit_remap(), but the
target completes the clone with bio_endio, accounting is started then
ended and pending_io counter decremented.
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Formally disallow dm_accept_partial_bio() on clones created by
__send_duplicate_bios() because their len_ptr points to a shared
unsigned int. __send_duplicate_bios() is only used for flush bios
and other "abnormal" bios (discards, writezeroes, etc). And
dm_accept_partial_bio() already didn't support flush bios.
Also refactor __send_changing_extent_only() to reflect it cannot fail.
As such __send_changing_extent_only() can update the clone_info before
__send_duplicate_bios() is called to fan-out __map_bio() calls.
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Wang Qing
Jernej Skrabec
Daniel González Cabanelas
Julia Lawall
Christian Hewitt
Xose Vazquez Perez
Ming Qian
Mikhail Rudenko
Dan Carpenter
Yang Li
Colin Ian King
Yunfei Dong
Rikard Falkeborn
Dongliang Mu
Gustavo A. R. Silva
Benjamin Gaignard
Jammy Huang
Niklas Söderlund
Xiaoke Wang
Kai-Heng Feng
Mårten Lindahl
Tom Rix
Ivan Bornyakov
Sergey Shtylyov
Michel Dänzer
Evan Quan
Bas Nieuwenhuizen
Mike Snitzer