Commit Graph

837070 Commits

Author SHA1 Message Date
Claudiu Manoil
7f4399ba40 ptp_qoriq: fix NULL access if ptp dt node missing
Make sure ptp dt node exists before accessing it in case
of NULL pointer call trace.

Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-09 09:19:26 -07:00
Linus Torvalds
dce45af5c2 5.2 Merge Window pull request
This has been a smaller cycle than normal. One new driver was accepted,
 which is unusual, and at least one more driver remains in review on the
 list.
 
 - Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4, vmw_pvrdma
 
 - Many patches from MatthewW converting radix tree and IDR users to use
   xarray
 
 - Introduction of tracepoints to the MAD layer
 
 - Build large SGLs at the start for DMA mapping and get the driver to
   split them
 
 - Generally clean SGL handling code throughout the subsystem
 
 - Support for restricting RDMA devices to net namespaces for containers
 
 - Progress to remove object allocation boilerplate code from drivers
 
 - Change in how the mlx5 driver shows representor ports linked to VFs
 
 - mlx5 uapi feature to access the on chip SW ICM memory
 
 - Add a new driver for 'EFA'. This is HW that supports user space packet
   processing through QPs in Amazon's cloud
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAlzTIU0ACgkQOG33FX4g
 mxrGKQ/8CqpyvuCyZDW5ovO4DI4YlzYSPXehWlwxA4CWhU1AYTujutnNOdZdngnz
 atTthOlJpZWJV26orvvzwIOi4qX/5UjLXEY3HYdn07JP1Z4iT7E3P4W2sdU3vdl3
 j8bU7xM7ZWmnGxrBZ6yQlVRadEhB8+HJIZWMw+wx66cIPnvU+g9NgwouH67HEEQ3
 PU8OCtGBwNNR508WPiZhjqMDfi/3BED4BfCihFhMbZEgFgObjRgtCV0M33SSXKcR
 IO2FGNVuDAUBlND3vU9guW1+M77xE6p1GvzkIgdCp6qTc724NuO5F2ngrpHKRyZT
 CxvBhAJI6tAZmjBVnmgVJex7rA8p+y/8M/2WD6GE3XSO89XVOkzNBiO2iTMeoxXr
 +CX6VvP2BWwCArxsfKMgW3j0h/WVE9w8Ciej1628m1NvvKEV4AGIJC1g93lIJkRN
 i3RkJ5PkIrdBrTEdKwDu1FdXQHaO7kGgKvwzJ7wBFhso8BRMrMfdULiMbaXs2Bw1
 WdL5zoSe/bLUpPZxcT9IjXRxY5qR0FpIOoo6925OmvyYe/oZo1zbitS5GGbvV90g
 tkq6Jb+aq8ZKtozwCo+oMcg9QPLYNibQsnkL3QirtURXWCG467xdgkaJLdF6s5Oh
 cp+YBqbR/8HNMG/KQlCfnNQKp1ci8mG3EdthQPhvdcZ4jtbqnSI=
 =TS64
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This has been a smaller cycle than normal. One new driver was
  accepted, which is unusual, and at least one more driver remains in
  review on the list.

  Summary:

   - Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4,
     vmw_pvrdma

   - Many patches from MatthewW converting radix tree and IDR users to
     use xarray

   - Introduction of tracepoints to the MAD layer

   - Build large SGLs at the start for DMA mapping and get the driver to
     split them

   - Generally clean SGL handling code throughout the subsystem

   - Support for restricting RDMA devices to net namespaces for
     containers

   - Progress to remove object allocation boilerplate code from drivers

   - Change in how the mlx5 driver shows representor ports linked to VFs

   - mlx5 uapi feature to access the on chip SW ICM memory

   - Add a new driver for 'EFA'. This is HW that supports user space
     packet processing through QPs in Amazon's cloud"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (186 commits)
  RDMA/ipoib: Allow user space differentiate between valid dev_port
  IB/core, ipoib: Do not overreact to SM LID change event
  RDMA/device: Don't fire uevent before device is fully initialized
  lib/scatterlist: Remove leftover from sg_page_iter comment
  RDMA/efa: Add driver to Kconfig/Makefile
  RDMA/efa: Add the efa module
  RDMA/efa: Add EFA verbs implementation
  RDMA/efa: Add common command handlers
  RDMA/efa: Implement functions that submit and complete admin commands
  RDMA/efa: Add the ABI definitions
  RDMA/efa: Add the com service API definitions
  RDMA/efa: Add the efa_com.h file
  RDMA/efa: Add the efa.h header file
  RDMA/efa: Add EFA device definitions
  RDMA: Add EFA related definitions
  RDMA/umem: Remove hugetlb flag
  RDMA/bnxt_re: Use core helpers to get aligned DMA address
  RDMA/i40iw: Use core helpers to get aligned DMA address within a supported page size
  RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks
  RDMA/umem: Add API to find best driver supported page size in an MR
  ...
2019-05-09 09:02:46 -07:00
Linus Torvalds
055128ee00 dmaengine updates for v5.2-rc1
- Updates to stm32 dma residue calculations
  - Interleave dma capability to axi-dmac and
    support for ZynqMP arch
  - Rework of channel assignment for rcar dma
  - Debugfs for pl330 driver
  - Support for Tegra186/Tegra194, refactoring for new chips
    and support for pause/resume
  - Updates to axi-dmac, bcm2835, fsl-edma, idma64, imx-sdma,
    rcar-dmac, stm32-dma etc
  - dev_get_drvdata() updates on few drivers
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJc08p1AAoJEHwUBw8lI4NHD14QAJGU7MOc9dpr+qtm2k3sNO3o
 EXZtb3GjTs4MUt6EfMA47KXsxeq4UhubQqM7CmPngDyjXaPd4JBE8bwAd+OzS9sq
 eAPMa+M1g8MehuQcdUzB/y6APoSFhGvFoGLY8e7FeI6fwYNm3Yy2gTSiZfpMb3MW
 hclJQe+UWfppUHOig13tr0tbQ31DOa7qb2+roVJqDEb9sQ5bDkhRWXjElfoeSXsS
 n8nNh4GZr5RkIxfzslVRZNfqb1lja2e03SXBsN9faQI7BfIYBM+9hWSYd4Nq8uYo
 xvhYf9gJnKVKtFrwdXtyeBJ80DijWBoodhLrLOfhEYYOrCl9WwJT9AepIOdvij32
 11FwjCbkC9ASQ1cSLyRUBbdmfykSlBvdbAMwJc1y9qK7k9BMba3rXRJfimlRy29A
 Cpsu4tZKoPlZRGinoGnEGreg1YZI1YHwa+hlkW/8V9Zkb2hvIUbbXr7xHedJf7n4
 gIb5DnCF5pC1umB/o7pj2YXrYBc9GETp3sDQ88aw1owKh1T2pZcc5HOpi4p7/7n+
 b2HM0cWOCM3aKwdOcONk0jd87FcYQm3g1isQF5SCOtOys8Uy6wNqo9aRrfE/94aw
 4SiGRq9/nSOHDh72mD3Ux7v47/cFjWGzZZJVy5+NC+Mq79KxgpXOjsIr7YVbcn9m
 GuUdiDZmUvZ4y+qq/uCI
 =JDU6
 -----END PGP SIGNATURE-----

Merge tag 'dmaengine-5.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:

 - Updates to stm32 dma residue calculations

 - Interleave dma capability to axi-dmac and support for ZynqMP arch

 - Rework of channel assignment for rcar dma

 - Debugfs for pl330 driver

 - Support for Tegra186/Tegra194, refactoring for new chips and support
   for pause/resume

 - Updates to axi-dmac, bcm2835, fsl-edma, idma64, imx-sdma, rcar-dmac,
   stm32-dma etc

 - dev_get_drvdata() updates on few drivers

* tag 'dmaengine-5.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (34 commits)
  dmaengine: tegra210-adma: restore channel status
  dmaengine: tegra210-dma: free dma controller in remove()
  dmaengine: tegra210-adma: add pause/resume support
  dmaengine: tegra210-adma: add support for Tegra186/Tegra194
  Documentation: DT: Add compatibility binding for Tegra186
  dmaengine: tegra210-adma: prepare for supporting newer Tegra chips
  dmaengine: at_xdmac: remove a stray bottom half unlock
  dmaengine: fsl-edma: Adjust indentation
  dmaengine: fsl-edma: Fix typo in Vybrid name
  dmaengine: stm32-dma: fix residue calculation in stm32-dma
  dmaengine: nbpfaxi: Use dev_get_drvdata()
  dmaengine: bcm-sba-raid: Use dev_get_drvdata()
  dmaengine: stm32-dma: Fix unsigned variable compared with zero
  dmaengine: stm32-dma: use platform_get_irq()
  dmaengine: rcar-dmac: Update copyright information
  dmaengine: imx-sdma: Only check ratio on parts that support 1:1
  dmaengine: xgene-dma: fix spelling mistake "descripto" -> "descriptor"
  dmaengine: idma64: Move driver name to the header
  dmaengine: bcm2835: Drop duplicate capability setting.
  dmaengine: pl330: _stop: clear interrupt status
  ...
2019-05-09 08:51:45 -07:00
Linus Torvalds
ddab5337b2 DMA mapping updates for 5.2
- remove the already broken support for NULL dev arguments to the
    DMA API calls
  - Kconfig tidyups
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlzT00YLHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYO66hAAx2kCUIh+K2gFB5uxHqZiG62UmRjkPzolxcR5/Jx9
 4Rz6NRAE+rp8v2fbBr2bveDx7cF5bm1L+pRyRsFMfwkm3a8dCHQ51ldIm5VFoI3e
 NiX6Zoxk02BCXP/Qk//aHeNW9dBmuiemiXzdPEhOvWvVzqTO5JZrECQpkHEkG+8A
 R/IWU15sr5xzw9Td/HVN9CRJri/qiTAuB9nSoP6BGjZeHkQjREJKNMGKDTvSzH4L
 tlyD1G7yEymQvLBqGGO64ztuav00l8sqjI3tn1mmwpw4VTajabeRHPnWh+7g9Od+
 sH1pRvIOTvEMc456fizufYIOedB5Ze344kgfrxhngRbBVXmMfShr8ZLzdIUGhGjY
 1cdGqIUOEKywiDf13KrHVkNU+lJtvjMCMxvV93mAYRLOIQg0Jf4T2kklgKyEhqrG
 rqFdbbtSBzmLjPyqc1FS0heDWmA+yJsKAumGcH4blJXCpsD1rHWGe0AJ34x+OHPT
 tw5l+P4zAH1eO1qHCtmxN9s0lXZv1VLcFkOrJH91LPvAhZsUCrdqDjyJpTUYaIao
 yzkiLbDwFO7SVoqzaVNlVZIJ/9LX0qfAnl2Atty+sAQomrQMoviNSzGbLSLQqhHN
 FbTIEBMxrxS49+3lfzHOS/lYPpJp6B31yotNM+6YpXmbRQZN5gjGNYBqhKD+7Rgn
 L0Y=
 =IdsP
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-5.2' of git://git.infradead.org/users/hch/dma-mapping

Pull DMA mapping updates from Christoph Hellwig:

 - remove the already broken support for NULL dev arguments to the DMA
   API calls

 - Kconfig tidyups

* tag 'dma-mapping-5.2' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: add a Kconfig symbol to indicate arch_dma_prep_coherent presence
  dma-mapping: remove an unnecessary NULL check
  x86/dma: Remove the x86_dma_fallback_dev hack
  dma-mapping: remove leftover NULL device support
  arm: use a dummy struct device for ISA DMA use of the DMA API
  pxa3xx-gcu: pass struct device to dma_mmap_coherent
  gbefb: switch to managed version of the DMA allocator
  da8xx-fb: pass struct device to DMA API functions
  parport_ip32: pass struct device to DMA API functions
  dma: select GENERIC_ALLOCATOR for DMA_REMAP
2019-05-09 08:40:55 -07:00
Neil Armstrong
f41efceb46 pwm: meson: Add clock source configuration for Meson G12A
For the PWM controller in the Meson G12A SoC, the EE domain and AO domain
have different clock sources. This patch tries to describe them in the
DT compatible data. The two AO PWM controller has different clock source,
but the first AO controller (A & B) can reuse the AXG parents name.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 17:29:31 +02:00
Neil Armstrong
ad36cb9186 dt-bindings: pwm: Update bindings for the Meson G12A Family
Update the doc to explicitly support Meson G12A Family.
The 2 first (A & B) AO PWM uses different clock source than the last 2
(C & D) AO PWM modules, thus we need to differentiate them.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 17:29:30 +02:00
Uwe Kleine-König
b05232d624 pwm: samsung: Don't uses devm_*() functions in ->request()
A call to ->request() is always paired by a call to ->free() before a
given device is disposed. So the simplification that usually is possible
when using devm_*() functions cannot be used here. So use plain
kzalloc() and kfree() for improved runtime behaviour and reduced memory
footprint.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[thierry.reding@gmail.com: fix build failure]
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 17:29:15 +02:00
Linus Torvalds
e57ccca1ba sound updates for 5.2-rc1
The most significant changes at this cycle are the Sound Open Firmware
 support from Intel for the common DSP framework along with its support
 for Intel platforms. It's a door opened to a real "free" firmware (in
 the sense of FOSS), and other parties show interests in it.
 
 In addition to SOF, we've got a bunch of updates and fixes as usual.
 Some highlights are below.
 
 ALSA core:
  - Cleanups and fixes in ALSA timer code to cover some races spotted
    by syzkaller
  - Cleanups and fixes in ALSA sequencer code to cover some races,
    again unsurprisingly, spotted by syzkaller
  - Optimize the common page allocation helper with alloc_pages_exact()
 
 ASoC:
  - Add SOF core support, as well as Intel SOF platform support
  - Generic card driver improvements: support for MCLK/sample rate
    ratio and pin switches
  - A big set of improvements to TLV320AIC32x4 drivers
  - New drivers for Freescale audio mixers, several Intel machines,
    several Mediatek machines, Meson G12A, Spreadtrum compressed audio
    and DMA devices
 
 HD-audio:
  - A few Realtek codec fixes for reducing pop noises
  - Quirks for Chromebooks
  - Workaround for faulty connection report on AMD/Nvidia HDMI
 
 Others:
  - A quirk for Focusrite Scarlett Solo USB-audio
  - Add support for MOTU 8pre FireWire
  - 24bit sample format support in aloop
  - GUS patch format support (finally, over a decade) in native
    emux synth code
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAlzUKVAOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE/FtQ/+LWWV9wIXeKYCSxKUdUF21Cpdo9eh3P55MTIR
 ooxbasNywsllYC1l2IXYi/HYKUlpIwg7kA2itfxaPSW7pveWKPt4mufJsvWpRZws
 XUre1MPR9vzTwDqhiG+8rH3osS0YVu9kOipRej043hFHsnXxbOfsnSQ2I+tst6tS
 12s5Hmhx/YFyR6fJMCIm3CoR59spz/SWXftna6bnkKbEYkeDmI3TtM1s9jum3U5F
 KReBigp1qffRzSjUYhw8YRujkJPqB65cLGguRyPDkuUoDbLzhu2QBNXwlQvk2+rH
 bgreE7hqmm2ZwRnjSwJFtrFSuOfULjBjXqv2QMG+Lby5e/VzrzV0wdZJd2YXk9VX
 VzhjiHmAGI2l30JClGuz9wN2MXuvtQFr2dJF56Nuw535mwuBUzxQwXY5qkX6uJ1z
 KXADrUz7atA2VVYRgPEj8D30c1RlAzmiPLTxLTKouk0LdcOih90z/SaT/qlUHfsA
 7TUaYBJt6PKbmrGK+PxUTpw/M88w+frbcV+PZNAynLeJfiRROl1Yg/6Tc0QC9nts
 cHs9Migp2tf37gEvYcXFEPHI/A+sfIb5RZuTQySpUN09vODb37cZXl+lI4FuLGcJ
 F4d45b05gNcybt+SFj63CGpW+k4QO8M6TUzy7gvQ0DdUmhd0mEvAmGfEPBoaBsau
 5uJEfOQ=
 =0tyg
 -----END PGP SIGNATURE-----

Merge tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "The most significant changes at this cycle are the Sound Open Firmware
  support from Intel for the common DSP framework along with its support
  for Intel platforms. It's a door opened to a real "free" firmware (in
  the sense of FOSS), and other parties show interests in it.

  In addition to SOF, we've got a bunch of updates and fixes as usual.
  Some highlights are below.

  ALSA core:
   - Cleanups and fixes in ALSA timer code to cover some races spotted
     by syzkaller
   - Cleanups and fixes in ALSA sequencer code to cover some races,
     again unsurprisingly, spotted by syzkaller
   - Optimize the common page allocation helper with alloc_pages_exact()

  ASoC:
   - Add SOF core support, as well as Intel SOF platform support
   - Generic card driver improvements: support for MCLK/sample rate
     ratio and pin switches
   - A big set of improvements to TLV320AIC32x4 drivers
   - New drivers for Freescale audio mixers, several Intel machines,
     several Mediatek machines, Meson G12A, Spreadtrum compressed audio
     and DMA devices

  HD-audio:
   - A few Realtek codec fixes for reducing pop noises
   - Quirks for Chromebooks
   - Workaround for faulty connection report on AMD/Nvidia HDMI

  Others:
   - A quirk for Focusrite Scarlett Solo USB-audio
   - Add support for MOTU 8pre FireWire
   - 24bit sample format support in aloop
   - GUS patch format support (finally, over a decade) in native emux
     synth code"

* tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (375 commits)
  ASoC: SOF: Fix unused variable warnings
  ALSA: line6: toneport: Fix broken usage of timer for delayed execution
  ALSA: aica: Fix a long-time build breakage
  ALSA: hda/realtek - Support low power consumption for ALC256
  ASoC: stm32: i2s: update pcm hardware constraints
  ASoC: codec: hdac_hdmi: no checking monitor in hw_params
  ASoC: mediatek: mt6358: save PGA for mixer control
  ASoC: mediatek: mt6358: save output volume for mixer controls
  ASoC: mediatek: mt6358: initialize setting when ramping volume
  ASoC: SOF: core: fix undefined nocodec reference
  ASoC: SOF: xtensa: fix undefined references
  ASoC: SOF: Propagate sof_get_ctrl_copy_params() error properly
  ALSA: hdea/realtek - Headset fixup for System76 Gazelle (gaze14)
  ALSA: hda/intel: add CometLake PCI IDs
  ALSA: hda/realtek - Support low power consumption for ALC295
  ASoC: rockchip: Fix an uninitialized variable compile warning
  ASoC: SOF: Fix a compile warning with CONFIG_PCI=n
  ASoC: da7219: Fix a compile warning at CONFIG_COMMON_CLK=n
  ASoC: sound/soc/sof/: fix kconfig dependency warning
  ASoC: stm32: spdifrx: change trace level on iec control
  ...
2019-05-09 08:26:55 -07:00
Uwe Kleine-König
e926b12c61 pwm: Clear chip_data in pwm_put()
After a PWM is disposed by its user the per chip data becomes invalid.
Clear the data in common code instead of the device drivers to get
consistent behaviour. Before this patch only three of nine drivers
cleaned up here.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 17:09:54 +02:00
Anson Huang
738a1cfec2 pwm: Add i.MX TPM PWM driver support
i.MX7ULP has TPM(Low Power Timer/Pulse Width Modulation Module) inside,
it can support multiple PWM channels, all the channels share same
counter and period setting, but each channel can configure its duty and
polarity independently.

There are several TPM modules in i.MX7ULP, the number of channels in TPM
modules are different, it can be read from each TPM module's PARAM
register.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 17:01:48 +02:00
Anson Huang
2caf038436 dt-bindings: pwm: Add i.MX TPM PWM binding
Add i.MX TPM(Low Power Timer/Pulse Width Modulation Module) PWM binding.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 17:00:24 +02:00
Roman Gushchin
f2b31bb598 cgroup: never call do_group_exit() with task->frozen bit set
I've got two independent reports that cgroup_task_frozen() check
in cgroup_exit() has been triggered by lkp libhugetlbfs-test and
LTP ptrace01 tests.

For example:
[   44.576072] WARNING: CPU: 1 PID: 3028 at kernel/cgroup/cgroup.c:5932 cgroup_exit+0x148/0x160
[   44.577724] Modules linked in: crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel sr_mod cdrom
bochs_drm sg ttm ata_generic pata_acpi ppdev drm_kms_helper snd_pcm syscopyarea aesni_intel snd_timer
sysfillrect sysimgblt snd crypto_simd cryptd glue_helper soundcore fb_sys_fops joydev drm serio_raw pcspkr
ata_piix libata i2c_piix4 floppy parport_pc parport ip_tables
[   44.583106] CPU: 1 PID: 3028 Comm: ptrace-write-hu Not tainted 5.1.0-rc3-00053-g9262503 #5
[   44.584600] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[   44.586116] RIP: 0010:cgroup_exit+0x148/0x160
[   44.587135] Code: 0f 84 50 ff ff ff 48 8b 85 c8 0c 00 00 48 8b 78 70 e8 ec 2e 00 00 e9 3b ff ff ff f0 ff 43 60
0f 88 72 21 89 00 e9 48 ff ff ff <0f> 0b e9 1b ff ff ff e8 3c 73 f4 ff 66 90 66 2e 0f 1f 84 00 00 00
[   44.590113] RSP: 0018:ffffb25702dcfd30 EFLAGS: 00010002
[   44.591167] RAX: ffff96a7fee32410 RBX: ffff96a7ff1d6000 RCX: dead000000000200
[   44.592446] RDX: ffff96a7ff1d6080 RSI: ffff96a7fec75290 RDI: ffff96a7fec75290
[   44.593715] RBP: ffff96a7fec745c0 R08: ffff96a7fec74658 R09: 0000000000000000
[   44.594985] R10: 0000000000000000 R11: 0000000000000001 R12: ffff96a7fec75101
[   44.596266] R13: ffff96a7fec745c0 R14: ffff96a7ff3bde30 R15: ffff96a7fec75130
[   44.597550] FS:  0000000000000000(0000) GS:ffff96a7dd700000(0000) knlGS:0000000000000000
[   44.598950] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
[   44.600098] CR2: 00000000f7a00000 CR3: 000000000d20e000 CR4: 00000000000406e0
[   44.601417] Call Trace:
[   44.602777]  do_exit+0x337/0xc40
[   44.603677]  do_group_exit+0x3a/0xa0
[   44.604610]  get_signal+0x12e/0x8d0
[   44.605533]  ? __switch_to_asm+0x40/0x70
[   44.606503]  do_signal+0x36/0x650
[   44.607409]  ? __switch_to_asm+0x40/0x70
[   44.608383]  ? __schedule+0x267/0x860
[   44.609329]  exit_to_usermode_loop+0x89/0xf0
[   44.610349]  do_fast_syscall_32+0x251/0x2e3
[   44.611357]  entry_SYSENTER_compat+0x7f/0x91
[   44.612376] ---[ end trace e4ca5cfc4b7f7964 ]---

The problem is caused by the ptrace_signal() call in the for loop
in get_signal(). There is a cgroup_enter_frozen() call inside
ptrace_signal(), so after exit from ptrace_signal() the task->frozen
bit might be set. In this case do_group_exit() can be called with the
task->frozen bit set and trigger the warning. This is only place where
we can leave the loop with the task->frozen bit set and without
setting JOBCTL_TRAP_FREEZE and TIF_SIGPENDING.

To resolve this problem, let's move cgroup_leave_frozen(true) call to
just after the fatal label. If the task is going to die, the frozen
bit must be cleared no matter how we get into this point.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Reported-by: Qian Cai <cai@lca.pw>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2019-05-09 07:56:47 -07:00
Anson Huang
1347c94f73 pwm: imx27: Use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 16:53:59 +02:00
Martin Blumenstingl
f173747fff pwm: meson: Use the spin-lock only to protect register modifications
Holding the spin-lock for all of the code in meson_pwm_apply() can
result in a "BUG: scheduling while atomic". This can happen because
clk_get_rate() (which is called from meson_pwm_calc()) may sleep.
Only hold the spin-lock when modifying registers to solve this.

The reason why we need a spin-lock in the driver is because the
REG_MISC_AB register is shared between the two channels provided by one
PWM controller. The only functions where REG_MISC_AB is modified are
meson_pwm_enable() and meson_pwm_disable() so the register reads/writes
in there need to be protected by the spin-lock.

The original code also used the spin-lock to protect the values in
struct meson_pwm_channel. This could be necessary if two consumers can
use the same PWM channel. However, PWM core doesn't allow this so we
don't need to protect the values in struct meson_pwm_channel with a
lock.

Fixes: 211ed63075 ("pwm: Add support for Meson PWM Controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 16:51:13 +02:00
Bichao Zheng
a279345807 pwm: meson: Don't disable PWM when setting duty repeatedly
There is an abnormally low about 20ms,when setting duty repeatedly.
Because setting the duty will disable PWM and then enable. Delete
this operation now.

Fixes: 211ed63075 ("pwm: Add support for Meson PWM Controller")
Signed-off-by: Bichao Zheng <bichao.zheng@amlogic.com>
[ Dropped code instead of hiding it behind a comment ]
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 16:50:35 +02:00
Martin Blumenstingl
51496e4446 pwm: meson: Consider 128 a valid pre-divider
The pre-divider allows configuring longer PWM periods compared to using
the input clock directly. The pre-divider is 7 bit wide, meaning it's
maximum value is 128 (the register value is off-by-one: 0x7f or 127).

Change the loop to also allow for the maximum possible value to be
considered valid.

Fixes: 211ed63075 ("pwm: Add support for Meson PWM Controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2019-05-09 16:50:04 +02:00
Mao Han
3213486f2e csky: Add support for perf unwind-libdw
This patch add support for DWARF register mappings and libdw registers
initialization, which is used by perf callchain analyzing, eg:

perf record --call-graph=dwarf <COMMAND>

Here is elfutils csky backend patch set:
https://sourceware.org/ml/elfutils-devel/2019-q2/msg00007.html

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Arnd Bergmann <arnd@arnd.de>
2019-05-09 20:36:42 +08:00
Al Viro
05883eee85 do_move_mount(): fix an unsafe use of is_anon_ns()
What triggers it is a race between mount --move and umount -l
of the source; we should reject it (the source is parentless *and*
not the root of anon namespace at that), but the check for namespace
being an anon one is broken in that case - is_anon_ns() needs
ns to be non-NULL.  Better fixed here than in is_anon_ns(), since
the rest of the callers is guaranteed to get a non-NULL argument...

Reported-by: syzbot+494c7ddf66acac0ad747@syzkaller.appspotmail.com
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-09 02:32:50 -04:00
Marek Behun
8fbbfd966e mailbox: Add support for Armada 37xx rWTM mailbox
This adds support for the mailbox via which the kernel can communicate
with the firmware running on the secure processor of the Armada 37xx
SOC.

The rWTM secure processor has access to internal eFuses and
cryptographic circuits, such as the Entropy Bit Generator to generate
true random numbers.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-05-09 00:41:00 -05:00
Marek Behun
004c35cd8e dt-bindings: mailbox: Document armada-3700-rwtm-mailbox binding
This adds device tree binding documentation for the rWTM BIU mailbox
driver on the Armada 37xx SOC (EspressoBin, Turris Mox).

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-05-09 00:41:00 -05:00
Fabien Dessenne
68a1c8485c mailbox: stm32-ipcc: check invalid irq
On failure of_irq_get() returns a negative value or zero, which is
not handled as an error in the existing implementation.
Instead of using this API, use platform_get_irq() that returns
exclusively a negative value on failure.
Also, do not output an error log in case of defer probe error.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-05-09 00:41:00 -05:00
Anson Huang
0c40e631cd mailbox: imx: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-05-09 00:40:49 -05:00
Takashi Iwai
ed97c988bd ASoC: Updates for v5.2
Redone to remove the misfiled SPI commit
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlzTjtATHGJyb29uaWVA
 a2VybmVsLm9yZwAKCRAk1otyXVSH0HzRB/4imVtG0F9XZtCBPVwsP+98oseFMqp8
 zU+UKJrOKb2DN2K7V3aeU7NJsi7ljR1KrDR5mL4jbhKU5+PZEyy8EPtVe2i+BFSE
 oUMpUHfcKqd590h0JY+syqihVr9+NzYhtJ0GIQ9td8fCVMjzfh/FsA4YKm8CNmRH
 sG+QlpbwAWJ2fD/FNAmnVWzjuuWEGG1USH4bXVSC//tsZD9BEjLWMceHjZN2yoRW
 4Y3Q4j2ki1bFb2CxcrXBjLDVvuTFe9CHEetfDCRM+7lfgGoEZL7Q+5DOTCZ5bOOH
 mOTdgkWOnr1XAj0zsBcr7Fpdeb29oYr2CQ6s1yT4JISv771gHZ0G8GaJ
 =Sh/u
 -----END PGP SIGNATURE-----

Merge tag 'asoc-v5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.2

A bunch of driver specific fixes that came in since the initial pull
request for v5.2, mainly warning fixes for the newly added Sound Open
Firmware code which people appeared to only start looking at after I'd
sent the pull request.
2019-05-09 07:13:40 +02:00
Linus Torvalds
a2d635decb drm pull request for 5.2
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJc04M6AAoJEAx081l5xIa+SJgP/0uIgIOM53vPpydgmr+2IEHF
 jbDqrd+mipgNriRVHjDsWdUHCUNtyhB7YEBCMrj3mY0rRFI7FlQQf4lOwYGoHiKP
 4JZg4kwC37997lFXl1uabGj3DmJLtxKL2/D15zCH/uLe+2EDzWznP6NVdFT3WK0P
 YKZQCWT19PWSsLoBRPutWxkmop4AYvkqE0a6vXUlJlFYZK3Bbytx6/179uWKfiX5
 ZkKEEtx1XiDAvcp5gBb6PISurycrBY0e/bkPBnK3ES5vawMbTU5IrmWOrQ4D8yOd
 z9qOVZawZ6+b2XBDgBWjQ9bM7I5R7Il1q/LglYEaFI9+wHUnlUdDSm6ft5/5BiCZ
 fqgkh5Bj2iEsajbSsacoljMOpxpYPqj63mqc+7fAGXF34V+B+9U1bpt8kCbMKowf
 7Abb7IuiCR6vLDapjP6VqTMvdQ4O466OEAN83ULGFTdmMqYYH4AxaIwc+xcAk/aP
 RNq7/RHhh4FRynRAj9fCkGlF3ArnM88gLINwWuEQq4SClWGcvdw7eaHpwWo77c4g
 iccCnTLqSIg5pDVu07AQzzBlW6KulWxh5o72x+Xx+EXWdYUDHQ1SlNs11bSNUBV1
 5MkrzY2GuD+NFEjsXJEDIPOr40mQOyJCXnxq8nXPsz/hD9kHeJPvWn3J3eVKyb5B
 Z6/knNqM0BDn3SaYR/rD
 =YFiQ
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This has two exciting community drivers for ARM Mali accelerators.
  Since ARM has never been open source friendly on the GPU side of the
  house, the community has had to create open source drivers for the
  Mali GPUs. Lima covers the older t4xx and panfrost the newer 6xx/7xx
  series. Well done to all involved and hopefully this will help ARM
  head in the right direction.

  There is also now the ability if you don't have any of the legacy
  drivers enabled (pre-KMS) to remove all the pre-KMS support code from
  the core drm, this saves 10% or so in codesize on my machine.

  i915 also enable Icelake/Elkhart Lake Gen11 GPUs by default, vboxvideo
  moves out of staging.

  There are also some rcar-du patches which crossover with media tree
  but all should be acked by Mauro.

  Summary:

  uapi changes:
   - Colorspace connector property
   - fourcc - new YUV formts
   - timeline sync objects initially merged
   - expose FB_DAMAGE_CLIPS to atomic userspace

  new drivers:
   - vboxvideo: moved out of staging
   - aspeed: ASPEED SoC BMC chip display support
   - lima: ARM Mali4xx GPU acceleration driver support
   - panfrost: ARM Mali6xx/7xx Midgard/Bitfrost acceleration driver support

  core:
   - component helper docs
   - unplugging fixes
   - devm device init
   - MIPI/DSI rate control
   - shmem backed gem objects
   - connector, display_info, edid_quirks cleanups
   - dma_buf fence chain support
   - 64-bit dma-fence seqno comparison fixes
   - move initial fb config code to core
   - gem fence array helpers for Lima
   - ability to remove legacy support code if no drivers requires it (removes 10% of drm.ko size)
   - lease fixes

  ttm:
   - unified DRM_FILE_PAGE_OFFSET handling
   - Account for kernel allocations in kernel zone only

  panel:
   - OSD070T1718-19TS panel support
   - panel-tpo-td028ttec1 backlight support
   - Ronbo RB070D30 MIPI/DSI
   - Feiyang FY07024DI26A30-D MIPI-DSI panel
   - Rocktech jh057n00900 MIPI-DSI panel

  i915:
   - Comet Lake (Gen9) PCI IDs
   - Updated Icelake PCI IDs
   - Elkhartlake (Gen11) support
   - DP MST property addtions
   - plane and watermark fixes
   - Icelake port sync and VEBOX disable fixes
   - struct_mutex usage reduction
   - Icelake gamma fix
   - GuC reset fixes
   - make mmap more asynchronous
   - sound display power well race fixes
   - DDI/MIPI-DSI clocks for Icelake
   - Icelake RPS frequency changing support
   - Icelake workarounds

  amdgpu:
   - Use HMM for userptr
   - vega20 experimental smu11 support
   - RAS support for vega20
   - BACO support for vega12 + fixes for vega20
   - reworked IH interrupt handling
   - amdkfd RAS support
   - Freesync improvements
   - initial timeline sync object support
   - DC Z ordering fixes
   - NV12 planes support
   - colorspace properties for planes=
   - eDP opts if eDP already initialized

  nouveau:
   - misc fixes

  etnaviv:
   - misc fixes

  msm:
   - GPU zap shader support expansion
   - robustness ABI addition

  exynos:
   - Logging cleanups

  tegra:
   - Shared reset fix
   - CPU cache maintenance fix

  cirrus:
   - driver rewritten using simple helpers

  meson:
   - G12A support

  vmwgfx:
   - Resource dirtying management improvements
   - Userspace logging improvements

  virtio:
   - PRIME fixes

  rockchip:
   - rk3066 hdmi support

  sun4i:
   - DSI burst mode support

  vc4:
   - load tracker to detect underflow

  v3d:
   - v3d v4.2 support

  malidp:
   - initial Mali D71 support in komeda driver

  tfp410:
   - omap related improvement

  omapdrm:
   - drm bridge/panel support
   - drop some omap specific panels

  rcar-du:
   - Display writeback support"

* tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm: (1507 commits)
  drm/msm/a6xx: No zap shader is not an error
  drm/cma-helper: Fix drm_gem_cma_free_object()
  drm: Fix timestamp docs for variable refresh properties.
  drm/komeda: Mark the local functions as static
  drm/komeda: Fixed warning: Function parameter or member not described
  drm/komeda: Expose bus_width to Komeda-CORE
  drm/komeda: Add sysfs attribute: core_id and config_id
  drm: add non-desktop quirk for Valve HMDs
  drm/panfrost: Show stored feature registers
  drm/panfrost: Don't scream about deferred probe
  drm/panfrost: Disable PM on probe failure
  drm/panfrost: Set DMA masks earlier
  drm/panfrost: Add sanity checks to submit IOCTL
  drm/etnaviv: initialize idle mask before querying the HW db
  drm: introduce a capability flag for syncobj timeline support
  drm: report consistent errors when checking syncobj capibility
  drm/nouveau/nouveau: forward error generated while resuming objects tree
  drm/nouveau/fb/ramgk104: fix spelling mistake "sucessfully" -> "successfully"
  drm/nouveau/i2c: Disable i2c bus access after ->fini()
  drm/nouveau: Remove duplicate ACPI_VIDEO_NOTIFY_PROBE definition
  ...
2019-05-08 21:35:19 -07:00
Michael Ellerman
8150a153c0 powerpc/64s: Use early_mmu_has_feature() in set_kuap()
When implementing the KUAP support on Radix we fixed one case where
mmu_has_feature() was being called too early in boot via
__put_user_size().

However since then some new code in linux-next has created a new path
via which we can end up calling mmu_has_feature() too early.

On P9 this leads to crashes early in boot if we have both PPC_KUAP and
CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG enabled. Our early boot code
calls printk() which calls probe_kernel_read(), that does a
__copy_from_user_inatomic() which calls into set_kuap() and that uses
mmu_has_feature().

At that point in boot we haven't patched MMU features yet so the debug
code in mmu_has_feature() complains, and calls printk(). At that point
we recurse, eg:

  ...
  dump_stack+0xdc
  probe_kernel_read+0x1a4
  check_pointer+0x58
  ...
  printk+0x40
  dump_stack_print_info+0xbc
  dump_stack+0x8
  probe_kernel_read+0x1a4
  probe_kernel_read+0x19c
  check_pointer+0x58
  ...
  printk+0x40
  cpufeatures_process_feature+0xc8
  scan_cpufeatures_subnodes+0x380
  of_scan_flat_dt_subnodes+0xb4
  dt_cpu_ftrs_scan_callback+0x158
  of_scan_flat_dt+0xf0
  dt_cpu_ftrs_scan+0x3c
  early_init_devtree+0x360
  early_setup+0x9c

And so on for infinity, symptom is a dead system.

Even more fun is what happens when using the hash MMU (ie. p8 or p9
with Radix disabled), and when we don't have
CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG enabled. With the debug disabled
we don't check if static keys have been initialised, we just rely on
the jump label. But the jump label defaults to true so we just whack
the AMR even though Radix is not enabled.

Clearing the AMR is fine, but after we've done the user copy we write
(0b11 << 62) into AMR. When using hash that makes all pages with key
zero no longer readable or writable. All kernel pages implicitly have
key zero, and so all of a sudden the kernel can't read or write any of
its memory. Again dead system.

In the medium term we have several options for fixing this.
probe_kernel_read() doesn't need to touch AMR at all, it's not doing a
user access after all, but it uses __copy_from_user_inatomic() just
because it's easy, we could fix that.

It would also be safe to default to not writing to the AMR during
early boot, until we've detected features. But it's not clear that
flipping all the MMU features to static_key_false won't introduce
other bugs.

But for now just switch to early_mmu_has_feature() in set_kuap(), that
avoids all the problems with jump labels. It adds the overhead of a
global lookup and test, but that's probably trivial compared to the
writes to the AMR anyway.

Fixes: 890274c2dc ("powerpc/64s: Implement KUAP for Radix MMU")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Russell Currey <ruscur@russell.cc>
2019-05-09 14:28:56 +10:00
Linus Torvalds
89c3b37af8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
Pull IDE update from David Miller:
 "Finally deprecate the legacy IDE layer"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  ide: officially deprecated the legacy IDE driver
2019-05-08 21:14:17 -07:00
Takashi Iwai
7f6647ced2
ASoC: SOF: Fix unused variable warnings
The recent fix for the build fix caused a couple of unused variable
compiler warnings when CONFIG_SND_SOC_SOF_NOCODEC isn't set:
  sound/soc/sof/core.c:263:6: warning: unused variable ‘ret’ [-Wunused-variable]
  sound/soc/sof/core.c:262:28: warning: unused variable ‘machine’ [-Wunused-variable]

Fix them by adding another ifdef.

Fixes: ce38a75089 ("ASoC: SOF: core: fix undefined nocodec reference")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-09 11:18:57 +09:00
Dave Airlie
eb85d03e01 - A handful of fixes from -next that just missed feature freeze
- More panfrost fixes that went directly in -misc-next-fixes (various)
 - Fix searchpaths during build (Masahiro)
 - msm patch to fix the driver for chips without zap shader (Rob)
 - Fix freeing imported buffers in drm_gem_cma_free_object() (Noralf)
 
 Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
 Cc: Rob Clark <robdclark@chromium.org>
 Cc: Noralf Trønnes <noralf@tronnes.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEfxcpfMSgdnQMs+QqlvcN/ahKBwoFAlzTQGwACgkQlvcN/ahK
 BwplmQf+KUKGSEgeIDS3u3rVOcU5QhoOTL+hWP90hNcNlKdU3W1P6fuCTSr9526C
 s1KLRC6usEWPlk3cWtxt2WHGl6du0nvVBfQ8bYHQJOM14/kH078hkFiSF/MAzwxX
 v5ToJcP7J6XRkj9M2uuA3TF5luDdfLh7qX1PCOIGzvH7Fs677QW/Umsm53CDDYM7
 UHgQChSHAz/q4TMmvHtRr72VhPbqfsFJ8Z7gvfjn7ZpO3DJyo1S0hLq6h3wlkAKz
 ShgnOFQ1oCTPWUE4PgzkHZmImU2+TDhIR/KpcM7ohomSGiqQSCnybNXBDbKWNhFt
 FzUVJoOP98WxUor6b7a8j67ZQPtVjw==
 =FGzZ
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-fixes-2019-05-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

- A handful of fixes from -next that just missed feature freeze
- More panfrost fixes that went directly in -misc-next-fixes (various)
- Fix searchpaths during build (Masahiro)
- msm patch to fix the driver for chips without zap shader (Rob)
- Fix freeing imported buffers in drm_gem_cma_free_object() (Noralf)

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Rob Clark <robdclark@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190508205153.GA91135@art_vandelay
2019-05-09 11:04:00 +10:00
Dave Airlie
f2e8d169b2 Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-next
This is the 2nd pull request for the malidp-next. The new patches add
additional support for Arm Mali D71 so that it can now be enabled
correctly and brought up on any SoC that contains the IP. From now on
we will start focusing on adding writeback, scaling and other useful
features to bring the driver to the same level of maturity as mali-dp.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Liviu Dudau <Liviu.Dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507103712.GJ15144@e110455-lin.cambridge.arm.com
2019-05-09 10:43:52 +10:00
Mauro Carvalho Chehab
5d5db1c94f docs: sparc: convert to ReST
Rename the sparc documentation files to ReST, add an
index for them and adjust in order to produce a nice html
output via the Sphinx build system.

There is an except from a document under oradax dir.
It doesn't seem to make much sense to convert this one
to ReST, so let's add it as an included document.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:13:35 -07:00
David S. Miller
dac21527df Merge branch 'sparc32-iommu-SG-list'
Christoph Hellwig says:

====================
fix SG list handling in the sparc32 iommu driver

this series fixes some long standing bugs in the sparc32 iommu driver,
mostly the lack of handling of large sglist offsets in the map_sg
method, but also a few other smaller bits.  These now show up all the
time do some block layer changes in linux-next.
====================

Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:12:19 -07:00
Christoph Hellwig
376b1371a9 sparc/iommu: merge iommu_get_one and __sbus_iommu_map_page
There is only one caller of iommu_get_one left, so merge it into
that one to clean things up a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
edb1f07203 sparc/iommu: use __sbus_iommu_map_page to implement the map_sg path
This means we handle > PAGE_SIZE offsets fine, and grow the size check
so far only performed in the map_page path.  We lose the optimization
to not double flush a page if it apears in multiple consecutive SG list
entries.  But at least for block I/O those don't happen anymore since
we properly merge in higher layers anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
7e996890b8 sparc/iommu: fix __sbus_iommu_map_page for highmem pages
__sbus_iommu_map_page currently assumes all pages are mapped into the
kernel direct mapping.  Switch to using physical address instead of
virtual ones for all the normal mapping operations, and only use
the virtual addresses for cache flushing when not operating on
a highmem page.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
8668b38c1c sparc/iommu: move per-page flushing into __sbus_iommu_map_page
This prepares for reusing __sbus_iommu_map_page in the map_sg path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
b82059428c sparc/iommu: pass a physical address to iommu_get_one
No need for the page structure, just the paddr / pfn.  This is
going to simplify fixes to the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
ff5cbec0c3 sparc/iommu: create a common helper for map_sg
Share the code for the global and per-page flush map_sg loops using a
simple bool parameter to disable the per-page flush for the former
variant.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
f25b23bc15 sparc/iommu: merge iommu_release_one and sbus_iommu_unmap_page
There is only one caller of iommu_release_one left, so merge it into
that one to clean things up a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:57 -07:00
Christoph Hellwig
a7fce1f7ca sparc/iommu: use sbus_iommu_unmap_page in sbus_iommu_unmap_sg
Use the page-level helper instead of duplicating the logic, while also
fixing the incorrect handling of larger than page sized offsets in
the sg variant.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:56 -07:00
Christoph Hellwig
031abf0b70 sparc/iommu: use !PageHighMem to check if a page has a kernel mapping
This deobsfucates the check a bit, and prepares for future changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 17:11:56 -07:00
Masahiro Yamada
269fe56551 sparc: vdso: add FORCE to the build rule of %.so
$(call if_changed,...) must have FORCE as a prerequisite.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:58:35 -07:00
Jagadeesh Pagadala
a95a9e5f0f arch:sparc:kernel/uprobes.c : Remove duplicate header
Remove duplicate header which is included twice.

Signed-off-by: Jagadeesh Pagadala <jagdsh.linux@gmail.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:57:44 -07:00
Christoph Hellwig
7ad19a99ad ide: officially deprecated the legacy IDE driver
After a recent chat with Dave we agreed to try to finally kill off the
legacy IDE code base.  Set a two year grace period in which we try
to move everyone over.  There are a few pieces of hardware not
supported by libata yet, but for many of them we aren't even sure
if there are any users.  For those that have users we have usually
found a volunteer to add libata support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:47:23 -07:00
Linus Torvalds
92fab77b6b Main MIPS changes for v5.2:
- A set of memblock initialization improvements thanks to Serge Semin,
   tidying up after our conversion from bootmem to memblock back in
   v4.20.
 
 - Our eBPF JIT the previously supported only MIPS64r2 through MIPS64r5
   is improved to also support MIPS64r6. Support for MIPS32 systems is
   introduced, with the caveat that it only works for programs that don't
   use 64 bit registers or operations - those will bail out & need to be
   interpreted.
 
 - Improvements to the allocation & configuration of our exception vector
   that should fix issues seen on some platforms using recent versions of
   U-Boot.
 
 - Some minor improvements to code generated for jump labels, along with
   enabling them by default for generic kernels.
 -----BEGIN PGP SIGNATURE-----
 
 iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXNNB2RUccGF1bC5idXJ0
 b25AbWlwcy5jb20ACgkQPqefrLV1AN1zeAD/U/ScowcQE8ynoY97nA70d3UmbETH
 YETUX5WcOfR65O8A/1hvMX8QJ1x87XUlNTkE6Gdh/itAZJpJWiSo3dnd1GoF
 =L9IJ
 -----END PGP SIGNATURE-----

Merge tag 'mips_5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:

 - A set of memblock initialization improvements thanks to Serge Semin,
   tidying up after our conversion from bootmem to memblock back in
   v4.20.

 - Our eBPF JIT the previously supported only MIPS64r2 through MIPS64r5
   is improved to also support MIPS64r6. Support for MIPS32 systems is
   introduced, with the caveat that it only works for programs that
   don't use 64 bit registers or operations - those will bail out & need
   to be interpreted.

 - Improvements to the allocation & configuration of our exception
   vector that should fix issues seen on some platforms using recent
   versions of U-Boot.

 - Some minor improvements to code generated for jump labels, along with
   enabling them by default for generic kernels.

* tag 'mips_5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (27 commits)
  mips: Manually call fdt_init_reserved_mem() method
  mips: Make sure dt memory regions are valid
  mips: Perform early low memory test
  mips: Dump memblock regions for debugging
  mips: Add reserve-nomap memory type support
  mips: Use memblock to reserve the __nosave memory range
  mips: Discard post-CMA-init foreach loop
  mips: Reserve memory for the kernel image resources
  MIPS: Remove duplicate EBase configuration
  MIPS: Sync icache for whole exception vector
  MIPS: Always allocate exception vector for MIPSr2+
  MIPS: Use memblock_phys_alloc() for exception vector
  mips: Combine memblock init and memory reservation loops
  mips: Discard rudiments from bootmem_init
  mips: Make sure kernel .bss exists in boot mem pool
  mips: vdso: drop unnecessary cc-ldoption
  Revert "MIPS: ralink: fix cpu clock of mt7621 and add dt clk devices"
  MIPS: generic: Enable CONFIG_JUMP_LABEL
  MIPS: jump_label: Use compact branches for >= r6
  MIPS: jump_label: Remove redundant nops
  ...
2019-05-08 16:41:47 -07:00
Pieter Jansen van Vuuren
5f05836831 net/sched: avoid double free on matchall reoffload
Avoid freeing cls_mall.rule twice when failing to setup flow_action
offload used in the hardware intermediate representation. This is
achieved by returning 0 when the setup fails but the skip software
flag has not been set.

Fixes: f00cbf1968 ("net/sched: use the hardware intermediate representation for matchall")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:34:58 -07:00
Pieter Jansen van Vuuren
1e966763e2 nfp: reintroduce ndo_get_port_parent_id for representor ports
NFP does not register devlink ports for representors (without
the "devlink: expose PF and VF representors as ports" series
there are no port flavours to expose them as).

Commit c25f08ac65 ("nfp: remove ndo_get_port_parent_id implementation")
went to far in removing ndo_get_port_parent_id for representors.
This causes redirection offloads to fail, and switch_id attribute
missing.

Reintroduce the ndo_get_port_parent_id callback for representor ports.

Fixes: c25f08ac65 ("nfp: remove ndo_get_port_parent_id implementation")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:32:36 -07:00
David S. Miller
8dde14299e Merge branch 'phy-realtek-delays'
Serge Semin says:

====================
net: phy: realtek: Fix RGMII TX/RX-delays initial config of rtl8211(e|f)

It has been discovered that RX/TX delays of rtl8211e ethernet PHY
can be configured via a MDIO register hidden in the extension pages
layout. Particularly the extension page 0xa4 provides a register 0x1c,
which bits 1 and 2 control the described delays. They are used to
implement the "rgmii-{id,rxid,txid}" phy-mode support in patch 1.

The second patch makes sure the rtl8211f TX-delay is configured only
if RGMII interface mode is specified including the rgmii-rxid one.
In other cases (most importantly for NA mode) the delays are supposed
to be preconfigured by some other software or hardware and should be
left as is without any modification. The similar thing is also done
for rtl8211e in the patch 1 of this series.

Changelog v3
- Add this cover-letter.
- Add Andrew' Reviewed-by tag to patch 1.
- Accept RGMII_RXID interface mode for rtl8211f and clear the TX_DELAY
  bit in this case.
- Initialize ret variable with 0 to prevent the "may be used uninitialized"
  warning in patch 1.

Changelog v4
- Rebase onto net-next
====================

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:31:38 -07:00
Serge Semin
1da7756e66 net: phy: realtek: Change TX-delay setting for RGMII modes only
It's prone to problems if delay is cleared out for other than RGMII
modes. So lets set/clear the TX-delay in the config register only
if actually RGMII-like interface mode is requested. This only
concerns rtl8211f chips.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:31:38 -07:00
Serge Semin
f81dadbcf7 net: phy: realtek: Add rtl8211e rx/tx delays config
There are two chip pins named TXDLY and RXDLY which actually adds the 2ns
delays to TXC and RXC for TXD/RXD latching. Alas this is the only
documented info regarding the RGMII timing control configurations the PHY
provides. It turns out the same settings can be setup via MDIO registers
hidden in the extension pages layout. Particularly the extension page 0xa4
provides a register 0x1c, which bits 1 and 2 control the described delays.
They are used to implement the "rgmii-{id,rxid,txid}" phy-mode.

The hidden RGMII configs register utilization was found in the rtl8211e
U-boot driver:
https://elixir.bootlin.com/u-boot/v2019.01/source/drivers/net/phy/realtek.c#L99

There is also a freebsd-folks discussion regarding this register:
https://reviews.freebsd.org/D13591

It confirms that the register bits field must control the so called
configuration pins described in the table 12-13 of the official PHY
datasheet:
8:6 = PHY Address
5:4 = Auto-Negotiation
3 = Interface Mode Select
2 = RX Delay
1 = TX Delay
0 = SELRGV

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08 16:31:38 -07:00
Andy Shevchenko
6456fd7315 platform/x86: Add support for Basin Cove power button
This provides a new input driver for supporting the power button on
Basin Cove PMIC, found on Intel Merrifield-based devices.

The driver follows the design used in intel_chtdc_ti_pwrbtn.c module.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-05-09 00:33:03 +03:00