Commit graph

932,869 commits

Author SHA1 Message Date
Maxime Jourdan
823a730034 media: meson: vdec: add common HEVC decoder support
Add support for the HEVC & VP9 common decoder support, handling
Amlogic GXBB, GXL, G12A and SM1 platforms.

This handles the "HEVC" hw decoder used for HEVC and VP9, and will be
using in the new H264 multi-instance decoder for G12A & SM1 platforms.

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 23:01:25 +01:00
Maxime Jourdan
09b455d1da media: meson: vdec: add helpers for lossless framebuffer compression buffers
Add helpers to support the lossless framebuffer compression format that
will be used in HEVC & VP9 decoders when decoding 10bit content for
downsampling to 8bit NV12 and later proper compressed buffer support.

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:59:47 +01:00
Neil Armstrong
7624c9cd5b media: meson: vdec: align stride on 32 bytes
The HEVC/VP9 aligns the plane stride on 32, so align the planes stride
for all codecs to 32 to satisfy HEVC/VP9 decoding using the "HEVC" HW.

This fixes VP9 decoding of streams with following (not limited) widths:
- 264
 -288
- 350
- 352
- 472
- 480
- 528
- 600
- 720
- 800
- 848
- 1440

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:58:52 +01:00
Maxime Jourdan
d7647e7c90 media: meson: vdec: add H.264 decoding support
Add support for the H264 compressed format (V4L2_PIX_FMT_H264).

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:58:29 +01:00
Tycho Andersen
af33d2433b
riscv: fix seccomp reject syscall code path
If secure_computing() rejected a system call, we were previously setting
the system call number to -1, to indicate to later code that the syscall
failed. However, if something (e.g. a user notification) was sleeping, and
received a signal, we may set a0 to -ERESTARTSYS and re-try the system call
again.

In this case, seccomp "denies" the syscall (because of the signal), and we
would set a7 to -1, thus losing the value of the system call we want to
restart.

Instead, let's return -1 from do_syscall_trace_enter() to indicate that the
syscall was rejected, so we don't clobber the value in case of -ERESTARTSYS
or whatever.

This commit fixes the user_notification_signal seccomp selftest on riscv to
no longer hang. That test expects the system call to be re-issued after the
signal, and it wasn't due to the above bug. Now that it is, everything
works normally.

Note that in the ptrace (tracer) case, the tracer can set the register
values to whatever they want, so we still need to keep the code that
handles out-of-bounds syscalls. However, we can drop the comment.

We can also drop syscall_set_nr(), since it is no longer used anywhere, and
the code that re-loads the value in a7 because of it.

Reported in: https://lore.kernel.org/bpf/CAEn-LTp=ss0Dfv6J00=rCAy+N78U2AmhqJNjfqjr2FDpPYjxEQ@mail.gmail.com/

Reported-by: David Abdurachmanov <david.abdurachmanov@gmail.com>
Signed-off-by: Tycho Andersen <tycho@tycho.ws>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-05 13:58:15 -08:00
Maxime Jourdan
876f123b89 media: meson: vdec: bring up to compliance
Add all the necessary bits to pass v4l2-compliance in stateful decoding
mode.

Mostly includes tracking the state of the decoder, allowing the OUTPUT
queue to stream while the CAPTURE queue is inactive, handling resolution
change events, draining with V4L2_DEC_CMD_STOP, copying more metadata
from the src buffers to the dst buffers, etc.

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:57:26 +01:00
Neil Armstrong
d4d137de5f media: vicodec: use v4l2-mem2mem draining, stopped and next-buf-is-last states handling
Use the previously introduced v4l2-mem2mem core APIs to handle the drainig,
stopped and next-buf-is-last states.

With these changes, the v4l2-compliance still passes with the following
commands :
>>>><><><><><><><><><><><><><><><><>< 15.53 fps
 15.53 fps
><><><><><><><><><><><><>< 13.99 fps
 13.99 fps
><><><><><><><><><><><>< 13.52 fps
 13.52 fps
><><><><><><><><><><><><>< 13.41 fps
 13.41 fps
><><><><><><><><><><><><>< 13.21 fps
 13.21 fps
><><><><><><><><><><><>< 13.09 fps
 13.09 fps
><><><><><><><
STOP ENCODER
<<<
EOS EVENT

v4l2-compliance SHA: 7ead0e1856b89f2e19369af452bb03fd0cd16793, 64 bits
[...]
Total for vicodec device /dev/video0: 50, Succeeded: 50, Failed: 0, Warnings: 0

The full output is available at [1]

v4l2-compliance SHA: 7ead0e1856b89f2e19369af452bb03fd0cd16793, 64 bits
[...]
Total for vicodec device /dev/video1: 50, Succeeded: 50, Failed: 0, Warnings: 0

The full output is available at [2]

No functional changes should be noticed.

[1] https://termbin.com/25nn
[2] https://termbin.com/dza4

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Suggested-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:55:57 +01:00
Neil Armstrong
2b48e11386 media: v4l2-mem2mem: handle draining, stopped and next-buf-is-last states
Since the draining and stop phase of the HW decoder mem2mem bahaviour is
now clearly defined, we can move handling of the following states to the
common v4l2-mem2mem core code:
- draining
- stopped
- next-buf-is-last

By introducing the following v4l2-mem2mem APIs:
- v4l2_m2m_encoder_cmd/v4l2_m2m_ioctl_encoder_cmd to handle start/stop command
- v4l2_m2m_decoder_cmd/v4l2_m2m_ioctl_decoder_cmd to handle start/stop command
- v4l2_m2m_update_start_streaming_state to update state on start of streaming
of the de/encoder queue
- v4l2_m2m_update_stop_streaming_state to update state on stop of streaming
of the de/encoder queue
- v4l2_m2m_last_buffer_done to make the current dest buffer as the last one

And inline helpers:
- v4l2_m2m_mark_stopped to mark the de/encoding process as stopped
- v4l2_m2m_clear_state to clear the de/encoding state
- v4l2_m2m_dst_buf_is_last to detect the current dequeued dst_buf is the last
- v4l2_m2m_has_stopped to detect the de/encoding stopped state
- v4l2_m2m_is_last_draining_src_buf to detect the current source buffer should
 be the last processing before stopping the de/encoding process

The special next-buf-is-last when min_buffers != 1 case is also handled
in v4l2_m2m_qbuf() by reusing the other introduced APIs.

This state management has been stolen from the vicodec implementation,
and is no-op for drivers not calling the v4l2_m2m_encoder_cmd or
v4l2_m2m_decoder_cmd and v4l2_m2m_update_start/stop_streaming_state.

The vicodec will be the first one to be converted as an example.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:54:49 +01:00
Hans Verkuil
2fae4d6aab media: v4l2-ctrls: v4l2_ctrl_request_complete() should always set ref->req
When the request is completed, all controls are copied to the request object.
However, when VIDIOC_G_EXT_CTRLS attempts to read control values from the
request it will read the current value instead for any control reference that
has a NULL ref->req pointer. But that's wrong: after completing the request
*all* controls should have a non-NULL ref->req pointer since they are after
all copied to the request.

So set ref->req if it wasn't set already.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:48:56 +01:00
YueHaibing
3421726289 media: staging: media: usbvision: Add missing MEDIA_USB_SUPPORT dependency
VIDEO_USBVISION driver depends on MEDIA_USB_SUPPORT

Fixes: 8fb12ce2ec ("media: usbvision: deprecate driver")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:48:28 +01:00
Dmitry Osipenko
7af80a697d media: staging: tegra-vde: Use devm_platform_ioremap_resource_byname()
There is a new devm_platform_ioremap_resource_byname() helper in the
kernel now, which helps to make code cleaner a tad by replacing few
"boilerplate" lines of code with a single line. Let's utilize that
new helper in the VDE driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:48:03 +01:00
Benoit Parrot
1db56284b9 media: ti-vpe: cal: fix disable_irqs to only the intended target
disable_irqs() was mistakenly disabling all interrupts when called.
This cause all port stream to stop even if only stopping one of them.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:47:30 +01:00
Steve Longerbeam
e3004605a0 media: imx: Propagate quantization and encoding in CSI
Unlike the PRPENC and PRPVF subdevices, the CSI's cannot convert
quantization from sink to source, or do any kind of Y'CbCr <-> RGB
encoding. So the CSI's cannot allow quantization and ycbcr_enc to be
selectable by the user and must be propagated from sink to source.

Fixes: 4791bd7d6a ("media: imx: Try colorimetry at both sink and source pads")

Reported-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:47:05 +01:00
Jonathan Neuschäfer
60d70d75c1 media: v4l2: Switch to new kerneldoc syntax for named variable macro arguments
The new syntax is available since commit 43756e347f
("scripts/kernel-doc: Add support for named variable macro arguments").

The same HTML output is produced with and without this patch.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:46:45 +01:00
Sergiu Cuciurean
204c7b3c06 media: spi: gs1662: Use new structure for SPI transfer delays
In a recent change to the SPI subsystem [1], a new `delay` struct was added
to replace the `delay_usecs`. This change replaces the current
`delay_usecs` with `delay` for this driver.

The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
that both `delay_usecs` & `delay` are used (in this order to preserve
backwards compatibility).

[1] commit bebcfd272d ("spi: introduce `delay` field for
`spi_transfer` + spi_transfer_delay_exec()")

Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:46:25 +01:00
Eugen Hristev
aead0ffbf0 media: v4l2-core: fix entity initialization in device_register_subdev
The entity variable was being initialized in the wrong place, before the
parameters have been checked.
To solve this, completely removed the entity variable and replaced it
with the initialization value : &sd->entity.
This will avoid dereferencing 'sd' pointer before it's being checked if
it's NULL.

Fixes: 61f5db549d ("[media] v4l: Make v4l2_subdev inherit from media_entity")

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:45:03 +01:00
Dafna Hirschfeld
6990570f7e media: v4l2-core: fix a use-after-free bug of sd->devnode
sd->devnode is released after calling
v4l2_subdev_release. Therefore it should be set
to NULL so that the subdev won't hold a pointer
to a released object. This fixes a reference
after free bug in function
v4l2_device_unregister_subdev

Fixes: 0e43734d4c ("media: v4l2-subdev: add release() internal op")

Cc: stable@vger.kernel.org
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:44:06 +01:00
Dafna Hirschfeld
403265137f media: vimc: use-after-free fix - release vimc in the v4l_device release
A use-after-free bug occures when unbinding the device while it streams.
The 'struct vimc_ent_device' allocated for the 'Sensor A' is freed
when calling the sensor's 'rm' callback but the freed pointer is
later accessed in the function 'vimc_streamer_pipeline_terminate'.
To fix this bug, move the release callback of the vimc entities
and vimc_device to the release callback of v4l2_device.
The .rm callback of vimc_ent_config is replaced by two callbacks:

.unregister - this is called upon removing the device and
it unregisters the entity. This is an optional callback since
subdevices don't need to implement it because they are already
unregistered in v4l2_device_unregister.

.release - this is called from the release callback of v4l2_device
and it frees the entity.

This ensures that the entities will be released when the last fh
of any of the devices is closed.

The commands that cause the crash and the KASAN report:

media-ctl -d platform:vimc -V '"Sensor A":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d platform:vimc -V '"Debayer A":0[fmt:SBGGR8_1X8/640x480]'
v4l2-ctl -z platform:vimc -d "RGB/YUV Capture" -v width=1920,height=1440
v4l2-ctl -z platform:vimc -d "Raw Capture 0" -v pixelformat=BA81
v4l2-ctl --stream-mmap --stream-count=1000 -d /dev/video2 &
sleep 1
echo -n vimc.0 >/sys/bus/platform/drivers/vimc/unbind

[  188.417934] BUG: KASAN: use-after-free in vimc_streamer_pipeline_terminate+0x75/0x140 [vimc]
[  188.420182] Read of size 8 at addr ffff8881e9c26008 by task bash/185
[  188.421800]
[  188.422223] CPU: 0 PID: 185 Comm: bash Not tainted 5.5.0-rc1+ #1
[  188.423681] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[  188.425938] Call Trace:
[  188.426610]  dump_stack+0x75/0xa0
[  188.427519]  ? vimc_streamer_pipeline_terminate+0x75/0x140 [vimc]
[  188.429057]  print_address_description.constprop.6+0x16/0x220
[  188.430462]  ? vimc_streamer_pipeline_terminate+0x75/0x140 [vimc]
[  188.431979]  ? vimc_streamer_pipeline_terminate+0x75/0x140 [vimc]
[  188.433455]  __kasan_report.cold.9+0x1a/0x40
[  188.434518]  ? vimc_streamer_pipeline_terminate+0x75/0x140 [vimc]
[  188.436010]  kasan_report+0xe/0x20
[  188.436859]  vimc_streamer_pipeline_terminate+0x75/0x140 [vimc]
[  188.438339]  vimc_streamer_s_stream+0x8b/0x3c0 [vimc]
[  188.439576]  vimc_cap_stop_streaming+0x22/0x40 [vimc]
[  188.440863]  __vb2_queue_cancel+0x65/0x560 [videobuf2_common]
[  188.442391]  vb2_core_queue_release+0x19/0x50 [videobuf2_common]
[  188.443974]  vimc_cap_rm+0x10/0x20 [vimc]
[  188.444986]  vimc_rm_subdevs+0x9e/0xe0 [vimc]
[  188.446179]  vimc_remove+0x19/0x70 [vimc]
[  188.447301]  platform_drv_remove+0x2f/0x50
[  188.448468]  device_release_driver_internal+0x133/0x260
[  188.449814]  unbind_store+0x121/0x150
[  188.450726]  kernfs_fop_write+0x142/0x230
[  188.451724]  ? sysfs_kf_bin_read+0x100/0x100
[  188.452826]  vfs_write+0xdc/0x230
[  188.453760]  ksys_write+0xaf/0x140
[  188.454702]  ? __ia32_sys_read+0x40/0x40
[  188.455773]  ? __do_page_fault+0x473/0x620
[  188.456780]  do_syscall_64+0x5e/0x1a0
[  188.457711]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  188.459079] RIP: 0033:0x7f80f1f13504
[  188.459969] Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 00 00 00 00 48 8d 05 f9 61 0d 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 41 54 49 89 d4 55 48 89 f5 53
[  188.464445] RSP: 002b:00007ffd7e843b58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  188.466276] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f80f1f13504
[  188.467999] RDX: 0000000000000006 RSI: 000055ef2eb21b10 RDI: 0000000000000001
[  188.469708] RBP: 000055ef2eb21b10 R08: 00007f80f1fe68c0 R09: 00007f80f1e26740
[  188.471407] R10: 000055ef2eade010 R11: 0000000000000246 R12: 00007f80f1fe5760
[  188.473381] R13: 0000000000000006 R14: 00007f80f1fe0760 R15: 0000000000000006
[  188.475107]
[  188.475500] Allocated by task 473:
[  188.476351]  save_stack+0x19/0x80
[  188.477201]  __kasan_kmalloc.constprop.6+0xc1/0xd0
[  188.478507]  vimc_sen_add+0x36/0x309 [vimc]
[  188.479649]  vimc_probe+0x1e2/0x530 [vimc]
[  188.480776]  platform_drv_probe+0x46/0xa0
[  188.481829]  really_probe+0x16c/0x520
[  188.482732]  driver_probe_device+0x114/0x170
[  188.483783]  device_driver_attach+0x85/0x90
[  188.484800]  __driver_attach+0xa8/0x190
[  188.485734]  bus_for_each_dev+0xe4/0x140
[  188.486702]  bus_add_driver+0x223/0x2d0
[  188.487715]  driver_register+0xca/0x140
[  188.488767]  0xffffffffc037003d
[  188.489635]  do_one_initcall+0x86/0x28f
[  188.490702]  do_init_module+0xf8/0x340
[  188.491773]  load_module+0x3766/0x3a10
[  188.492811]  __do_sys_finit_module+0x11a/0x1b0
[  188.494059]  do_syscall_64+0x5e/0x1a0
[  188.495079]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  188.496481]
[  188.496893] Freed by task 185:
[  188.497670]  save_stack+0x19/0x80
[  188.498493]  __kasan_slab_free+0x125/0x170
[  188.499486]  kfree+0x8c/0x230
[  188.500254]  v4l2_subdev_release+0x64/0x70 [videodev]
[  188.501498]  v4l2_device_release_subdev_node+0x1c/0x30 [videodev]
[  188.502976]  device_release+0x3c/0xd0
[  188.503867]  kobject_put+0xf4/0x240
[  188.507802]  vimc_rm_subdevs+0x9e/0xe0 [vimc]
[  188.508846]  vimc_remove+0x19/0x70 [vimc]
[  188.509792]  platform_drv_remove+0x2f/0x50
[  188.510752]  device_release_driver_internal+0x133/0x260
[  188.512006]  unbind_store+0x121/0x150
[  188.512899]  kernfs_fop_write+0x142/0x230
[  188.513874]  vfs_write+0xdc/0x230
[  188.514698]  ksys_write+0xaf/0x140
[  188.515523]  do_syscall_64+0x5e/0x1a0
[  188.516543]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  188.517710]
[  188.518034] The buggy address belongs to the object at ffff8881e9c26000
[  188.518034]  which belongs to the cache kmalloc-4k of size 4096
[  188.520528] The buggy address is located 8 bytes inside of
[  188.520528]  4096-byte region [ffff8881e9c26000, ffff8881e9c27000)
[  188.523015] The buggy address belongs to the page:
[  188.524357] page:ffffea0007a70800 refcount:1 mapcount:0 mapping:ffff8881f6402140 index:0x0 compound_mapcount: 0
[  188.527058] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881f6402140
[  188.528983] raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
[  188.530883] page dumped because: kasan: bad access detected
[  188.532336]
[  188.532720] Memory state around the buggy address:
[  188.533871]  ffff8881e9c25f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  188.535631]  ffff8881e9c25f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  188.537370] >ffff8881e9c26000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  188.538996]                       ^
[  188.539812]  ffff8881e9c26080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  188.541549]  ffff8881e9c26100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:43:47 +01:00
Dafna Hirschfeld
4babf057c1 media: vimc: allocate vimc_device dynamically
In future patch, the release of the device will move
to the release callback of v4l2_device. Therefore the
device will be released only when the last fh will be
closed. Dynamic allocation will then be needed since
when the device is unbounded and then bounded again,
it might be that the probe callback will run before
the release of the last device is finished. In that
case both operations will run on the same memory
concurrently and cause memory corruption.
This patch also removes the pdev field of
vimc_device since it is not needed anymore.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:42:35 +01:00
Dafna Hirschfeld
2362f53dde media: vimc: replace vimc->pdev.dev with vimc->mdev.dev
replace 'vimc->pdev.dev' with 'vimc->mdev.dev'
in debug prints and in assignment to
vimc_ent_device.dev. This helps to unify the debug
statements. This will also eliminate the need to use
the pdev field in vimc_device in future patch.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-05 22:41:41 +01:00
Andy Yan
e1577157c0 arm64: dts: rockchip: remove dvs2 pinctrl for pmic on rk3399 evb
DVS2 of pmic is connected to GND, no pinctrl for it.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>

Link: https://lore.kernel.org/r/20200305113912.32226-2-andy.yan@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2020-03-05 22:35:25 +01:00
Johan Jonker
17ec2394d5 ARM: dts: rockchip: add missing model properties
A test with the command below gives these errors:

arch/arm/boot/dts/rk3288-evb-act8846.dt.yaml: /: 'model'
is a required property
arch/arm/boot/dts/rk3288-evb-rk808.dt.yaml: /: 'model'
is a required property
arch/arm/boot/dts/rk3288-r89.dt.yaml: /: 'model'
is a required property

Fix this error by adding the missing model properties to
the involved dts files.

make ARCH=arm dtbs_check
DT_SCHEMA_FILES=~/.local/lib/python3.5/site-packages/dtschema/
schemas/root-node.yaml

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200304074051.8742-1-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2020-03-05 22:33:49 +01:00
Eric Whitney
765bfcd59a ext4: delete declaration for ext4_split_extent()
There are no forward references for ext4_split_extent() in extents.c,
so delete its unnecessary declaration.

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Link: https://lore.kernel.org/r/20200212162141.22381-1-enwlinux@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-05 16:23:43 -05:00
Wolfram Sang
a392d26f32 include/bitmap.h: add new functions to documentation
I found these functions only by chance although I was looking exactly
for something like them. So, add them to the list of functions to make
them more visible.

Fixes: e837dfde15 ("bitmap: genericize percpu bitmap region iterators")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
2020-03-05 13:23:25 -08:00
Wolfram Sang
780d2a9c86 include/bitmap.h: add missing parameter in docs
bitmap_find_next_zero_area_off() has an additional parameter which was
not specified in the list of functions. Add it.

Fixes: 5e19b013f5 ("lib: bitmap: add alignment offset for bitmap_find_next_zero_area()")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
2020-03-05 13:12:54 -08:00
Ira Weiny
15617dffa3 percpu_ref: Fix comment regarding percpu_ref_init flags
The comment for percpu_ref_init() implies that using
PERCPU_REF_ALLOW_REINIT will cause the refcount to start at 0.  But
this is not true.  PERCPU_REF_ALLOW_REINIT starts the count at 1 as
if the flags were zero.  Add this fact to the kernel doc comment.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
[Dennis: reworded]
Signed-off-by: Dennis Zhou <dennis@kernel.org>
2020-03-05 13:10:26 -08:00
Alexandre Ghiti
3133287b53
riscv: Use p*d_leaf macros to define p*d_huge
The newly introduced p*d_leaf macros allow to check if an entry of the
page table map to a physical page instead of the next level. To avoid
duplication of code, use those macros to determine if a page table entry
points to a hugepage.

Suggested-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-05 13:09:59 -08:00
Eric Whitney
4337ecd1fe ext4: remove EXT4_EOFBLOCKS_FL and associated code
The EXT4_EOFBLOCKS_FL inode flag is used to indicate whether a file
contains unwritten blocks past i_size.  It's set when ext4_fallocate
is called with the KEEP_SIZE flag to extend a file with an unwritten
extent.  However, this flag hasn't been useful functionally since
March, 2012, when a decision was made to remove it from ext4.

All traces of EXT4_EOFBLOCKS_FL were removed from e2fsprogs version
1.42.2 by commit 010dc7b90d97 ("e2fsck: remove EXT4_EOFBLOCKS_FL flag
handling") at that time.  Now that enough time has passed to make
e2fsprogs versions containing this modification common, this patch now
removes the code associated with EXT4_EOFBLOCKS_FL from the kernel as
well.

This change has two implications.  First, because pre-1.42.2 e2fsck
versions only look for a problem if EXT4_EOFBLOCKS_FL is set, and
because that bit will never be set by newer kernels containing this
patch, old versions of e2fsck won't have a compatibility problem with
files created by newer kernels.

Second, newer kernels will not clear EXT4_EOFBLOCKS_FL inode flag bits
belonging to a file written by an older kernel.  If set, it will remain
in that state until the file is deleted.  Because e2fsck versions since
1.42.2 don't check the flag at all, no adverse effect is expected.
However, pre-1.42.2 e2fsck versions that do check the flag may report
that it is set when it ought not to be after a file has been truncated
or had its unwritten blocks written.  In this case, the old version of
e2fsck will offer to clear the flag.  No adverse effect would then
occur whether the user chooses to clear the flag or not.

Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Link: https://lore.kernel.org/r/20200211210216.24960-1-enwlinux@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-05 15:55:30 -05:00
Chengguang Xu
a08fe66e4a ext4: code cleanup for ext4_statfs_project()
Calling min_not_zero() to simplify complicated prjquota
limit comparison in ext4_statfs_project().

Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Link: https://lore.kernel.org/r/20200210082445.2379-1-cgxu519@mykernel.net
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-05 15:49:00 -05:00
Cengiz Can
153031a301 blktrace: fix dereference after null check
There was a recent change in blktrace.c that added a RCU protection to
`q->blk_trace` in order to fix a use-after-free issue during access.

However the change missed an edge case that can lead to dereferencing of
`bt` pointer even when it's NULL:

Coverity static analyzer marked this as a FORWARD_NULL issue with CID
1460458.

```
/kernel/trace/blktrace.c: 1904 in sysfs_blk_trace_attr_store()
1898            ret = 0;
1899            if (bt == NULL)
1900                    ret = blk_trace_setup_queue(q, bdev);
1901
1902            if (ret == 0) {
1903                    if (attr == &dev_attr_act_mask)
>>>     CID 1460458:  Null pointer dereferences  (FORWARD_NULL)
>>>     Dereferencing null pointer "bt".
1904                            bt->act_mask = value;
1905                    else if (attr == &dev_attr_pid)
1906                            bt->pid = value;
1907                    else if (attr == &dev_attr_start_lba)
1908                            bt->start_lba = value;
1909                    else if (attr == &dev_attr_end_lba)
```

Added a reassignment with RCU annotation to fix the issue.

Fixes: c780e86dd4 ("blktrace: Protect q->blk_trace with RCU")
Cc: stable@vger.kernel.org
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Cengiz Can <cengiz@kernel.wtf>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-05 13:42:40 -07:00
Xiaoguang Wang
72f9da1d5c ext4: start to support iopoll method
Since commit "b1b4705d54 ext4: introduce direct I/O read using
iomap infrastructure", we can easily make ext4 support iopoll
method, just use iomap_dio_iopoll().

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20200207120758.2411-1-xiaoguang.wang@linux.alibaba.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-05 15:40:15 -05:00
Harshad Shirwadkar
f2eeca099b ext4: force buffer up-to-date while marking it dirty
Writeback errors can leave buffer in not up-to-date state when there
are errors during background writes. Force buffer up-to-date while
marking it dirty.

Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20191224190940.157952-1-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-05 15:35:39 -05:00
Andy Shevchenko
b85c821083 MAINTAINERS: Add missed files related to Synopsys DesignWare UART
8250_dw has been split to library part and the driver, the library
is being used by 8250_lpss, which represents Synosys DesignWare UART
(with optional Synopsys Designware DMA) enumerated by PCI.

Add missed above mentioned files to the database record for review.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200305123108.41320-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-05 21:30:04 +01:00
Jay Dolan
10c5ccc3c6 serial: 8250_exar: add support for ACCES cards
Add ACCES VIDs and PIDs that use the Exar chips

Signed-off-by: Jay Dolan <jay.dolan@accesio.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200305140504.22237-1-jay.dolan@accesio.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-05 21:30:04 +01:00
Yash Shah
0a91330b2a
riscv: dts: Add GPIO reboot method to HiFive Unleashed DTS file
Add the ability to reboot the HiFive Unleashed board via GPIO.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-05 12:27:10 -08:00
tangbin
4a3e208474 tty:serial:mvebu-uart:fix a wrong return
in this place, the function should return a
negative value and the PTR_ERR already returns
a negative,so return -PTR_ERR() is wrong.

Signed-off-by: tangbin <tangbin@cmss.chinamobile.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200305013823.20976-1-tangbin@cmss.chinamobile.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-05 21:26:34 +01:00
David S. Miller
f3588909c1 Merge branch 'ethtool-consolidate-parameter-checking-for-irq-coalescing'
Jakub Kicinski says:

====================
ethtool: consolidate parameter checking for irq coalescing

This set aims to simplify and unify the unsupported irq
coalescing parameter handling.

First patch adds a bitmask which drivers should fill in
in their ethtool_ops structs to declare which parameters
they support. Core will then ensure that driver callback
won't see any parameter outside of that set.

This allows us to save some LoC and make sure all drivers
respond the same to unsupported parameters.

If any parameter driver does not support is set to a value
other than 0 core will return -EINVAL. In the future we can
reject any present but unsupported netlink attribute, without
assuming 0 means unset. We can also add some prints or extack,
perhaps a'la Intel's current code.

I started converting the drivers alphabetically but then
realized that for the first set it's probably best to
address a representative mix of actively developed drivers.

According to my unreliable math there are roughly 69 drivers
in the tree which support some form of interrupt coalescing
settings via ethtool. Of these roughly 17 reject parameters
they don't support.

I hope drivers which ignore the parameters don't care, and
won't care about the slight change in behavior. Once all
drivers are converted we can make the checking mandatory.

I've only tested the e1000e and virtio patches, the rest builds.

v2: fix up ice and virtio conversions
v3: (patch 1)
    - move the (temporary) check if driver defines types
      earlier (Michal)
    - rename used_types -> nonzero_params, and
      coalesce_types -> supported_coalesce_params (Alex)
    - use EOPNOTSUPP instead of EINVAL (Andrew, Michal)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
a51e520653 virtio_net: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
As a side effect of these changes the error code for
unsupported params changes from EINVAL to EOPNOTSUPP.

v2: correctly handle rx-frames (and adjust the commit msg)
v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
f9f12f57e2 e1000e: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

v3: adjust commit message for new member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
55808762f3 mlx5: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

v3: adjust commit message for new member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
f704d24371 bnxt: reject unsupported coalescing params
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver did not previously reject unsupported parameters.

v3: adjust commit message for new member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
4a80a18338 ice: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
As a side effect of these changes the info message about
the bad parameter will no longer be printed. We also
always reject the tx_coalesce_usecs_high param, even
if the target queue pair does not have a TX queue.
Error code changes from EINVAL to EOPNOTSUPP.

v2: allow adaptive TX
v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
60d339641a hisilicon: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
No functional changes.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
987b191c16 ionic: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
As a side effect of these changes the error code for
unsupported params changes from EINVAL to EOPNOTSUPP.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
0e72ea19e3 nfp: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
No functional changes.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:35 -08:00
Jakub Kicinski
d0ee0e620f stmmac: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
No functional changes.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:34 -08:00
Jakub Kicinski
c885bff6c2 enic: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
The error code changes from EINVAL to EOPNOTSUPP.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:34 -08:00
Jakub Kicinski
4a1ce0107e xgbe: let core reject the unsupported coalescing parameters
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
We are only losing the error print.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:34 -08:00
Jakub Kicinski
95cddcb5cc ethtool: add infrastructure for centralized checking of coalescing parameters
Linux supports 22 different interrupt coalescing parameters.
No driver implements them all. Some drivers just ignore the
ones they don't support, while others have to carry a long
list of checks to reject unsupported settings.

To simplify the drivers add the ability to specify inside
ethtool_ops which parameters are supported and let the core
reject attempts to set any other one.

This commit makes the mechanism an opt-in, only drivers which
set ethtool_opts->coalesce_types to a non-zero value will have
the checks enforced.

The same mask is used for global and per queue settings.

v3: - move the (temporary) check if driver defines types
      earlier (Michal)
    - rename used_types -> nonzero_params, and
      coalesce_types -> supported_coalesce_params (Alex)
    - use EOPNOTSUPP instead of EINVAL (Andrew, Michal)

Leaving the long series of ifs for now, it seems nice to
be able to grep for the field and flag names. This will
probably have to be revisited once netlink support lands.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:12:34 -08:00
Jian Shen
68e1006f61 net: hns3: fix a not link up issue when fibre port supports autoneg
When fibre port supports auto-negotiation, the IMP(Intelligent
Management Process) processes the speed of auto-negotiation
and the  user's speed separately.
For below case, the port will get a not link up problem.
step 1: disables auto-negotiation and sets speed to A, then
the driver's MAC speed will be updated to A.
step 2: enables auto-negotiation and MAC gets negotiated
speed B, then the driver's MAC speed will be updated to B
through querying in periodical task.
step 3: MAC gets new negotiated speed A.
step 4: disables auto-negotiation and sets speed to B before
periodical task query new MAC speed A, the driver will  ignore
the speed configuration.

This patch fixes it by skipping speed and duplex checking when
fibre port supports auto-negotiation.

Fixes: 22f48e24a2 ("net: hns3: add autoneg and change speed support for fibre port")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 12:04:50 -08:00