Commit Graph

39555 Commits

Author SHA1 Message Date
Jonathan Corbet 096ea522e8 doc: Cope with Sphinx logging deprecations
Recent versions of sphinx will emit messages like:

  Documentation/sphinx/kerneldoc.py:103:
     RemovedInSphinx20Warning: app.warning() is now deprecated.
     Use sphinx.util.logging instead.

Switch to sphinx.util.logging to make this unsightly message go away.
Alas, that interface was only added in version 1.6, so we have to add a
version check to keep things working with older sphinxes.

Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-23 09:22:00 -06:00
Linus Torvalds 61686afe1f A handful of fixes for a docs build problem, along with catching the
spdxcheck.py script up with the current state of affairs.
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Merge tag 'docs-5.2-fixes' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of fixes for a docs build problem, along with catching the
  spdxcheck.py script up with the current state of affairs"

* tag 'docs-5.2-fixes' of git://git.lwn.net/linux:
  Documentation: kdump: fix minor typo
  scripts/spdxcheck.py: Add dual license subdirectory
  scripts/spdxcheck.py: Fix path to deprecated licenses
  counter: fix Documentation build error due to incorrect source file name
2019-05-23 08:13:07 -07:00
Marc Zyngier a5325089bd arm64: Handle erratum 1418040 as a superset of erratum 1188873
We already mitigate erratum 1188873 affecting Cortex-A76 and
Neoverse-N1 r0p0 to r2p0. It turns out that revisions r0p0 to
r3p1 of the same cores are affected by erratum 1418040, which
has the same workaround as 1188873.

Let's expand the range of affected revisions to match 1418040,
and repaint all occurences of 1188873 to 1418040. Whilst we're
there, do a bit of reformating in silicon-errata.txt and drop
a now unnecessary dependency on ARM_ARCH_TIMER_OOL_WORKAROUND.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-05-23 15:40:30 +01:00
Will Deacon 969f5ea627 arm64: errata: Add workaround for Cortex-A76 erratum #1463225
Revisions of the Cortex-A76 CPU prior to r4p0 are affected by an erratum
that can prevent interrupts from being taken when single-stepping.

This patch implements a software workaround to prevent userspace from
effectively being able to disable interrupts.

Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-05-23 11:38:10 +01:00
Jakub Kicinski f42c104f2e Documentation: add TLS offload documentation
Describe existing kernel TLS offload (added back in Linux 4.19) -
the mechanism, the expected behavior and the notable corner cases.

This documentation is mostly targeting hardware vendors who want
to implement offload, to ensure consistency between implementations.

v2:
 - add emphasis around TLS_SW/TLS_HW/TLS_HW_RECORD;
 - remove mentions of ongoing work (Boris);
 - split the flow of data in SW vs. HW cases in TX overview
   (Boris);
 - call out which fields are updated by the device and which
   are filled by the stack (Boris);
 - move error handling into it's own section (Boris);
 - add more words about fallback (Boris);
 - note that checksum validation is required (Alexei);
 - note that drivers shouldn't pay attention to the TLS
   device features.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-22 12:18:20 -07:00
Jakub Kicinski f3c0f3c6c2 Documentation: tls: RSTify the ktls documentation
Convert the TLS doc to RST.  Use C code blocks for the code
samples, and mark hyperlinks.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-22 12:18:20 -07:00
Jakub Kicinski b0d8d4363e Documentation: net: move device drivers docs to a submenu
Some of the device drivers have really long document titles
making the networking table of contents hard to look through.
Place vendor drivers under a submenu.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-22 12:18:20 -07:00
Linus Torvalds f75b6f303b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Clear up some recent tipc regressions because of registration
    ordering. Fix from Junwei Hu.

 2) tipc's TLV_SET() can read past the end of the supplied buffer during
    the copy. From Chris Packham.

 3) ptp example program doesn't match the kernel, from Richard Cochran.

 4) Outgoing message type fix in qrtr, from Bjorn Andersson.

 5) Flow control regression in stmmac, from Tan Tee Min.

 6) Fix inband autonegotiation in phylink, from Russell King.

 7) Fix sk_bound_dev_if handling in rawv6_bind(), from Mike Manning.

 8) Fix usbnet crash after disconnect, from Kloetzke Jan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
  usbnet: fix kernel crash after disconnect
  selftests: fib_rule_tests: use pre-defined DEV_ADDR
  net-next: net: Fix typos in ip-sysctl.txt
  ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
  net: phylink: ensure inband AN works correctly
  usbnet: ipheth: fix racing condition
  net: stmmac: dma channel control register need to be init first
  net: stmmac: fix ethtool flow control not able to get/set
  net: qrtr: Fix message type of outgoing packets
  networking: : fix typos in code comments
  ptp: Fix example program to match kernel.
  fddi: fix typos in code comments
  selftests: fib_rule_tests: enable forwarding before ipv4 from/iif test
  selftests: fib_rule_tests: fix local IPv4 address typo
  tipc: Avoid copying bytes beyond the supplied data
  2/2] net: xilinx_emaclite: use readx_poll_timeout() in mdio wait function
  1/2] net: axienet: use readx_poll_timeout() in mdio wait function
  vlan: Mark expected switch fall-through
  macvlan: Mark expected switch fall-through
  net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
  ...
2019-05-22 08:28:16 -07:00
Kamal Dasu a5f2246fb9 dt: bindings: mtd: replace references to nand.txt with nand-controller.yaml
nand-controller.yaml replaced nand.txt however the references to it were
not updated. This change updates these references wherever it appears in
bindings documentation.

Fixes: 212e496935 ("dt-bindings: mtd: Add YAML schemas for the generic NAND options")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-22 09:08:20 -05:00
Rob Herring 8d665693c2 dt-bindings: interrupt-controller: arm,gic: Fix schema errors in example
Validating the examples against the schema have a few errors:

arm,gic.example.dt.yaml: 'ranges' does not match any of the regexes: '^v2m@[0-9a-f]+$', 'pinctrl-[0-9]+'
arm,gic.example.dt.yaml: #address-cells:0:0: 2 is not one of [0, 1]
arm,gic.example.dt.yaml: #size-cells:0:0: 1 was expected

'ranges' is valid, but missing from the schema, so add it. The reg
addresses and sizes don't match the schema requirements and the example
template. We could just override the example template to use 64-bit
addresses, but there's not really any value showing that in the example.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-22 09:06:11 -05:00
Robin Murphy 31910f4476 dt-bindings: arm: Clean up CPU binding examples
Following commit 31af04cd60 ("arm64: dts: Remove inconsistent use of
'arm,armv8' compatible string"), clean up these binding examples in case
anyone is tempted to copy them.

CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-22 09:01:02 -05:00
Mauro Carvalho Chehab dfab99544c dt: fix refs that were renamed to json with the same file name
These files were converted to json-schema, but the references weren't
renamed.

Fixes: 66ed144f14 ("dt-bindings: interrupt-controller: Convert ARM GIC to json-schema")
(and other similar commits)

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-22 09:01:01 -05:00
Rob Herring 05aeca7cb0 dt-bindings: Pass binding directory to validation tools
In order to have $ref's to schema files within the kernel, we need to
pass the base path of bindings to the schema validation tools.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: devicetree@vger.kernel.org
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-22 09:01:01 -05:00
Paul Walmsley f08ff9c525 dt-bindings: sifive: describe sifive-blocks versioning
For IP blocks that are generated from the public, open-source
sifive-blocks repository, describe the version numbering policy
that its maintainers intend to use, upon request from Rob
Herring <robh@kernel.org>.

Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Megan Wachs <megan@sifive.com>
Cc: Wesley Terpstra <wesley@sifive.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-22 09:01:00 -05:00
Masanari Iida 2bcd9d842b net-next: net: Fix typos in ip-sysctl.txt
This patch fixes some spelling typos found in ip-sysctl.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-21 13:21:08 -07:00
Cengiz Can a65fd4f0de Documentation: kdump: fix minor typo
kdump.txt had a minor typo.

Signed-off-by: Cengiz Can <cengizc@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-21 09:31:28 -06:00
Randy Dunlap 221fb7268d Documentation/networking: fix af_xdp.rst Sphinx warnings
Fix Sphinx warnings in Documentation/networking/af_xdp.rst by
adding indentation:

Documentation/networking/af_xdp.rst:319: WARNING: Literal block expected; none found.
Documentation/networking/af_xdp.rst:326: WARNING: Literal block expected; none found.

Fixes: 0f4a9b7d4e ("xsk: add FAQ to facilitate for first time users")

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-21 16:19:49 +02:00
Oliver Neukum 53c7b63f79 USB: rio500: update Documentation
Added the newly added limit and updated the text a bit

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:11:19 +02:00
Weitao Hou ba3c43851f networking: : fix typos in code comments
fix accelleration to acceleration

Signed-off-by: Weitao Hou <houweitaoo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-20 20:24:34 -04:00
Linus Torvalds 5bdd9ad875 Kbuild fixes for v5.2
- remove unused cc-ldoption
 
  - do not check the name uniquness of builtin modules to avoid
    false positives
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Merge tag 'kbuild-fixes-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - remove unused cc-ldoption

 - do not check the name uniquness of builtin modules to avoid false
   positives

* tag 'kbuild-fixes-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: do not check name uniqueness of builtin modules
  kbuild: drop support for cc-ldoption
2019-05-20 17:22:17 -07:00
Randy Dunlap fba388032c counter: fix Documentation build error due to incorrect source file name
Fix kernel-doc build error in Documentation/driver-api/generic-counter.rst
of incorrect source file name.
Fixes this warning and error:

Error: Cannot open file ../drivers/counter/generic-counter.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/counter/generic-counter.c' failed with return code 2

Fixes: 09e7d4ed89 ("docs: Add Generic Counter interface documentation")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-20 13:18:45 -06:00
Linus Torvalds 78e0365184 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:1) Use after free in __dev_map_entry_free(), from Eric Dumazet.

 1) Use after free in __dev_map_entry_free(), from Eric Dumazet.

 2) Fix TCP retransmission timestamps on passive Fast Open, from Yuchung
    Cheng.

 3) Orphan NFC, we'll take the patches directly into my tree. From
    Johannes Berg.

 4) We can't recycle cloned TCP skbs, from Eric Dumazet.

 5) Some flow dissector bpf test fixes, from Stanislav Fomichev.

 6) Fix RCU marking and warnings in rhashtable, from Herbert Xu.

 7) Fix some potential fib6 leaks, from Eric Dumazet.

 8) Fix a _decode_session4 uninitialized memory read bug fix that got
    lost in a merge. From Florian Westphal.

 9) Fix ipv6 source address routing wrt. exception route entries, from
    Wei Wang.

10) The netdev_xmit_more() conversion was not done %100 properly in mlx5
    driver, fix from Tariq Toukan.

11) Clean up botched merge on netfilter kselftest, from Florian
    Westphal.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (74 commits)
  of_net: fix of_get_mac_address retval if compiled without CONFIG_OF
  net: fix kernel-doc warnings for socket.c
  net: Treat sock->sk_drops as an unsigned int when printing
  kselftests: netfilter: fix leftover net/net-next merge conflict
  mlxsw: core: Prevent reading unsupported slave address from SFP EEPROM
  mlxsw: core: Prevent QSFP module initialization for old hardware
  vsock/virtio: Initialize core virtio vsock before registering the driver
  net/mlx5e: Fix possible modify header actions memory leak
  net/mlx5e: Fix no rewrite fields with the same match
  net/mlx5e: Additional check for flow destination comparison
  net/mlx5e: Add missing ethtool driver info for representors
  net/mlx5e: Fix number of vports for ingress ACL configuration
  net/mlx5e: Fix ethtool rxfh commands when CONFIG_MLX5_EN_RXNFC is disabled
  net/mlx5e: Fix wrong xmit_more application
  net/mlx5: Fix peer pf disable hca command
  net/mlx5: E-Switch, Correct type to u16 for vport_num and int for vport_index
  net/mlx5: Add meaningful return codes to status_to_err function
  net/mlx5: Imply MLXFW in mlx5_core
  Revert "tipc: fix modprobe tipc failed after switch order of device registration"
  vsock/virtio: free packets during the socket release
  ...
2019-05-20 08:21:07 -07:00
Nick Desaulniers 055efab312 kbuild: drop support for cc-ldoption
If you want to see if your linker supports a certain flag, then ask the
linker directly with ld-option (not the compiler with cc-ldoption).
Checking for linker flag support is an antipattern that complicates the
usage of various linkers other than bfd via -fuse-ld={bfd|gold|lld}.

Cc: clang-built-linux@googlegroups.com
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-21 00:02:59 +09:00
S.j. Wang 90fdbe8ab2
ASoC: cs42xx8: add reset-gpios in binding document
Add reset-gpios property, which is optional.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-20 15:21:56 +01:00
Mark Brown 1c7c3237c0 Linux 5.2-rc1
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Merge tag 'v5.2-rc1' into asoc-5.3

Linux 5.2-rc1
2019-05-20 11:53:50 +01:00
Linus Torvalds cb6f8739fb Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:
 "A few final bits:

   - large changes to vmalloc, yielding large performance benefits

   - tweak the console-flush-on-panic code

   - a few fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  panic: add an option to replay all the printk message in buffer
  initramfs: don't free a non-existent initrd
  fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
  mm/compaction.c: correct zone boundary handling when isolating pages from a pageblock
  mm/vmap: add DEBUG_AUGMENT_LOWEST_MATCH_CHECK macro
  mm/vmap: add DEBUG_AUGMENT_PROPAGATE_CHECK macro
  mm/vmalloc.c: keep track of free blocks for vmap allocation
2019-05-19 12:15:32 -07:00
Linus Torvalds f23d8719e7 Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "Some I2C core API additions which are kind of simple but enhance error
  checking for users a lot, especially by returning errno now.

  There are wrappers to still support the old API but it will be removed
  once all users are converted"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: core: add device-managed version of i2c_new_dummy
  i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy
2019-05-19 11:47:03 -07:00
Linus Torvalds a13f950ef1 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull clocksource updates from Ingo Molnar:
 "Misc clocksource/clockevent driver updates that came in a bit late but
  are ready for v5.2"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  misc: atmel_tclib: Do not probe already used TCBs
  clocksource/drivers/timer-atmel-tcb: Convert tc_clksrc_suspend|resume() to static
  clocksource/drivers/tcb_clksrc: Rename the file for consistency
  clocksource/drivers/timer-atmel-pit: Rework Kconfig option
  clocksource/drivers/tcb_clksrc: Move Kconfig option
  ARM: at91: Implement clocksource selection
  clocksource/drivers/tcb_clksrc: Use tcb as sched_clock
  clocksource/drivers/tcb_clksrc: Stop depending on atmel_tclib
  ARM: at91: move SoC specific definitions to SoC folder
  clocksource/drivers/timer-milbeaut: Cleanup common register accesses
  clocksource/drivers/timer-milbeaut: Add shutdown function
  clocksource/drivers/timer-milbeaut: Fix to enable one-shot timer
  clocksource/drivers/tegra: Rework for compensation of suspend time
  clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804
  clocksource/drivers/sun4i: Add a compatible for suniv
  dt-bindings: timer: Add Allwinner suniv timer
2019-05-19 11:11:20 -07:00
Linus Torvalds d9351ea14d Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull IRQ chip updates from Ingo Molnar:
 "A late irqchips update:

   - New TI INTR/INTA set of drivers

   - Rewrite of the stm32mp1-exti driver as a platform driver

   - Update the IOMMU MSI mapping API to be RT friendly

   - A number of cleanups and other low impact fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
  iommu/dma-iommu: Remove iommu_dma_map_msi_msg()
  irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg()
  irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg()
  irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg()
  irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg()
  iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts
  genirq/msi: Add a new field in msi_desc to store an IOMMU cookie
  arm64: arch_k3: Enable interrupt controller drivers
  irqchip/ti-sci-inta: Add msi domain support
  soc: ti: Add MSI domain bus support for Interrupt Aggregator
  irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver
  dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings
  irqchip/ti-sci-intr: Add support for Interrupt Router driver
  dt-bindings: irqchip: Introduce TISCI Interrupt router bindings
  gpio: thunderx: Use the default parent apis for {request,release}_resources
  genirq: Introduce irq_chip_{request,release}_resource_parent() apis
  firmware: ti_sci: Add helper apis to manage resources
  firmware: ti_sci: Add RM mapping table for am654
  firmware: ti_sci: Add support for IRQ management
  firmware: ti_sci: Add support for RM core ops
  ...
2019-05-19 10:58:45 -07:00
Linus Torvalds 4c4a5c99af ARM: SoC: late updates
This is some material that we picked up into our tree late. Most of it
 are smaller fixes and additions, some defconfig updates due to recent
 development, etc.
 
 Code-wise the largest portion is a series of PM updates for the at91
 platform, and those have been in linux-next a while through the at91
 tree before we picked them up.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC late updates from Olof Johansson:
 "This is some material that we picked up into our tree late. Most of it
  are smaller fixes and additions, some defconfig updates due to recent
  development, etc.

  Code-wise the largest portion is a series of PM updates for the at91
  platform, and those have been in linux-next a while through the at91
  tree before we picked them up"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
  arm64: dts: sprd: Add clock properties for serial devices
  Opt out of scripts/get_maintainer.pl
  ARM: ixp4xx: Remove duplicated include from common.c
  soc: ixp4xx: qmgr: Fix an NULL vs IS_ERR() check in probe
  arm64: tegra: Disable XUSB support on Jetson TX2
  arm64: tegra: Enable SMMU translation for PCI on Tegra186
  arm64: tegra: Fix insecure SMMU users for Tegra186
  arm64: tegra: Select ARM_GIC_PM
  amba: tegra-ahb: Mark PM functions as __maybe_unused
  ARM: dts: logicpd-som-lv: Fix MMC1 card detect
  ARM: mvebu: drop return from void function
  ARM: mvebu: prefix coprocessor operand with p
  ARM: mvebu: drop unnecessary label
  ARM: mvebu: fix a leaked reference by adding missing of_node_put
  ARM: socfpga_defconfig: enable LTC2497
  ARM: mvebu: kirkwood: remove error message when retrieving mac address
  ARM: at91: sama5: make ov2640 as a module
  ARM: OMAP1: ams-delta: fix early boot crash when LED support is disabled
  ARM: at91: remove HAVE_FB_ATMEL for sama5 SoC as they use DRM
  soc/fsl/qe: Fix an error code in qe_pin_request()
  ...
2019-05-19 10:16:39 -07:00
Linus Torvalds b0bb1269b9 RISC-V Patches for the 5.2 Merge Window, Part 1 v3
This patch set contains an assortment of RISC-V related patches that I'd
 like to target for the 5.2 merge window.  Most of the patches are
 cleanups, but there are a handful of user-visible changes:
 
 * The nosmp and nr_cpus command-line arguments are now supported, which
   work like normal.
 * The SBI console no longer installs itself as a preferred console, we
   rely on standard mechanisms (/chosen, command-line, hueristics)
   instead.
 * sfence_remove_sfence_vma{,_asid} now pass their arguments along to the
   SBI call.
 * Modules now support BUG().
 * A missing sfence.vma during boot has been added.  This bug only
   manifests during boot.
 * The arch/riscv support for SiFive's L2 cache controller has been
   merged, which should un-block the EDAC framework work.
 
 I've only tested this on QEMU again, as I didn't have time to get things
 running on the Unleashed.  The latest master from this morning merges in
 cleanly and passes the tests as well.
 
 This patch set rebased my "5.2 MW, Part 1" patch set which includes an
 erronous empty file.  It's also a rebase of my "5.2 MW, Part 2" patch
 set, in which I managed to create another file while attempting to
 remove the empty file.
 
 Sorry for all the noise!
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Merge tag 'riscv-for-linus-5.2-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V updates from Palmer Dabbelt:
 "This contains an assortment of RISC-V related patches that I'd like to
  target for the 5.2 merge window. Most of the patches are cleanups, but
  there are a handful of user-visible changes:

   - The nosmp and nr_cpus command-line arguments are now supported,
     which work like normal.

   - The SBI console no longer installs itself as a preferred console,
     we rely on standard mechanisms (/chosen, command-line, hueristics)
     instead.

   - sfence_remove_sfence_vma{,_asid} now pass their arguments along to
     the SBI call.

   - Modules now support BUG().

   - A missing sfence.vma during boot has been added. This bug only
     manifests during boot.

   - The arch/riscv support for SiFive's L2 cache controller has been
     merged, which should un-block the EDAC framework work.

  I've only tested this on QEMU again, as I didn't have time to get
  things running on the Unleashed. The latest master from this morning
  merges in cleanly and passes the tests as well"

* tag 'riscv-for-linus-5.2-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (31 commits)
  riscv: fix locking violation in page fault handler
  RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs
  RISC-V: Add DT documentation for SiFive L2 Cache Controller
  RISC-V: Avoid using invalid intermediate translations
  riscv: Support BUG() in kernel module
  riscv: Add the support for c.ebreak check in is_valid_bugaddr()
  riscv: support trap-based WARN()
  riscv: fix sbi_remote_sfence_vma{,_asid}.
  riscv: move switch_mm to its own file
  riscv: move flush_icache_{all,mm} to cacheflush.c
  tty: Don't force RISCV SBI console as preferred console
  RISC-V: Access CSRs using CSR numbers
  RISC-V: Add interrupt related SCAUSE defines in asm/csr.h
  RISC-V: Use tabs to align macro values in asm/csr.h
  RISC-V: Fix minor checkpatch issues.
  RISC-V: Support nr_cpus command line option.
  RISC-V: Implement nosmp commandline option.
  RISC-V: Add RISC-V specific arch_match_cpu_phys_id
  riscv: vdso: drop unnecessary cc-ldoption
  riscv: call pm_power_off from machine_halt / machine_power_off
  ...
2019-05-19 09:56:36 -07:00
Feng Tang de6da1e8bc panic: add an option to replay all the printk message in buffer
Currently on panic, kernel will lower the loglevel and print out pending
printk msg only with console_flush_on_panic().

Add an option for users to configure the "panic_print" to replay all
dmesg in buffer, some of which they may have never seen due to the
loglevel setting, which will help panic debugging .

[feng.tang@intel.com: keep the original console_flush_on_panic() inside panic()]
  Link: http://lkml.kernel.org/r/1556199137-14163-1-git-send-email-feng.tang@intel.com
[feng.tang@intel.com: use logbuf lock to protect the console log index]
  Link: http://lkml.kernel.org/r/1556269868-22654-1-git-send-email-feng.tang@intel.com
Link: http://lkml.kernel.org/r/1556095872-36838-1-git-send-email-feng.tang@intel.com
Signed-off-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-18 15:52:26 -07:00
Linus Torvalds 0ef0fd3515 * ARM: support for SVE and Pointer Authentication in guests, PMU improvements
* POWER: support for direct access to the POWER9 XIVE interrupt controller,
 memory and performance optimizations.
 
 * x86: support for accessing memory not backed by struct page, fixes and refactoring
 
 * Generic: dirty page tracking improvements
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "ARM:
   - support for SVE and Pointer Authentication in guests
   - PMU improvements

  POWER:
   - support for direct access to the POWER9 XIVE interrupt controller
   - memory and performance optimizations

  x86:
   - support for accessing memory not backed by struct page
   - fixes and refactoring

  Generic:
   - dirty page tracking improvements"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (155 commits)
  kvm: fix compilation on aarch64
  Revert "KVM: nVMX: Expose RDPMC-exiting only when guest supports PMU"
  kvm: x86: Fix L1TF mitigation for shadow MMU
  KVM: nVMX: Disable intercept for FS/GS base MSRs in vmcs02 when possible
  KVM: PPC: Book3S: Remove useless checks in 'release' method of KVM device
  KVM: PPC: Book3S HV: XIVE: Fix spelling mistake "acessing" -> "accessing"
  KVM: PPC: Book3S HV: Make sure to load LPID for radix VCPUs
  kvm: nVMX: Set nested_run_pending in vmx_set_nested_state after checks complete
  tests: kvm: Add tests for KVM_SET_NESTED_STATE
  KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state
  tests: kvm: Add tests for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_CPU_ID
  tests: kvm: Add tests to .gitignore
  KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2
  KVM: Fix kvm_clear_dirty_log_protect off-by-(minus-)one
  KVM: Fix the bitmap range to copy during clear dirty
  KVM: arm64: Fix ptrauth ID register masking logic
  KVM: x86: use direct accessors for RIP and RSP
  KVM: VMX: Use accessors for GPRs outside of dedicated caching logic
  KVM: x86: Omit caching logic for always-available GPRs
  kvm, x86: Properly check whether a pfn is an MMIO or not
  ...
2019-05-17 10:33:30 -07:00
Heiner Kallweit b8f5fe3bc5 i2c: core: add device-managed version of i2c_new_dummy
i2c_new_dummy is typically called from the probe function of the
driver for the primary i2c client. It requires calls to
i2c_unregister_device in the error path of the probe function and
in the remove function.
This can be simplified by introducing a device-managed version.

Note the changed error case return value type: i2c_new_dummy returns
NULL whilst devm_i2c_new_dummy_device returns an ERR_PTR.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
[wsa: rename new functions and fix minor kdoc issues]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-05-17 19:29:40 +02:00
Yash Shah 5545b6d1ba
RISC-V: Add DT documentation for SiFive L2 Cache Controller
Add device tree bindings for SiFive FU540 L2 cache controller driver

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-05-16 20:42:13 -07:00
Linus Torvalds 9cbda1bddb Conversion of vendor-prefixes.txt to json-schema
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Merge tag 'devicetree-for-5.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree vendor prefix conversion from Rob Herring:
 "Conversion of vendor-prefixes.txt to json-schema"

* tag 'devicetree-for-5.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Convert vendor prefixes to json-schema
2019-05-16 18:54:13 -07:00
Linus Torvalds 227747fb9e AFS fixes
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Merge tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull misc AFS fixes from David Howells:
 "This fixes a set of miscellaneous issues in the afs filesystem,
  including:

   - leak of keys on file close.

   - broken error handling in xattr functions.

   - missing locking when updating VL server list.

   - volume location server DNS lookup whereby preloaded cells may not
     ever get a lookup and regular DNS lookups to maintain server lists
     consume power unnecessarily.

   - incorrect error propagation and handling in the fileserver
     iteration code causes operations to sometimes apparently succeed.

   - interruption of server record check/update side op during
     fileserver iteration causes uninterruptible main operations to fail
     unexpectedly.

   - callback promise expiry time miscalculation.

   - over invalidation of the callback promise on directories.

   - double locking on callback break waking up file locking waiters.

   - double increment of the vnode callback break counter.

  Note that it makes some changes outside of the afs code, including:

   - an extra parameter to dns_query() to allow the dns_resolver key
     just accessed to be immediately invalidated. AFS is caching the
     results itself, so the key can be discarded.

   - an interruptible version of wait_var_event().

   - an rxrpc function to allow the maximum lifespan to be set on a
     call.

   - a way for an rxrpc call to be marked as non-interruptible"

* tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Fix double inc of vnode->cb_break
  afs: Fix lock-wait/callback-break double locking
  afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set
  afs: Fix calculation of callback expiry time
  afs: Make dynamic root population wait uninterruptibly for proc_cells_lock
  afs: Make some RPC operations non-interruptible
  rxrpc: Allow the kernel to mark a call as being non-interruptible
  afs: Fix error propagation from server record check/update
  afs: Fix the maximum lifespan of VL and probe calls
  rxrpc: Provide kernel interface to set max lifespan on a call
  afs: Fix "kAFS: AFS vnode with undefined type 0"
  afs: Fix cell DNS lookup
  Add wait_var_event_interruptible()
  dns_resolver: Allow used keys to be invalidated
  afs: Fix afs_cell records to always have a VL server list record
  afs: Fix missing lock when replacing VL server list
  afs: Fix afs_xattr_get_yfs() to not try freeing an error value
  afs: Fix incorrect error handling in afs_xattr_get_acl()
  afs: Fix key leak in afs_release() and afs_evict_inode()
2019-05-16 17:00:13 -07:00
Linus Torvalds 311f71281f - Improve DM snapshot target's scalability by using finer grained
locking.  Requires some list_bl interface improvements.
 
 - Add ability for DM integrity to use a bitmap mode, that tracks regions
   where data and metadata are out of sync, instead of using a journal.
 
 - Improve DM thin provisioning target to not write metadata changes to
   disk if the thin-pool and associated thin devices are merely
   activated but not used.  This avoids metadata corruption due to
   concurrent activation of thin devices across different OS instances
   (e.g. split brain scenarios, which ultimately would be avoided if
   proper device filters were used -- but not having proper filtering has
   proven a very common configuration mistake)
 
 - Fix missing call to path selector type->end_io in DM multipath.  This
   fixes reported performance problems due to inaccurate path selector IO
   accounting causing an imbalance of IO (e.g. avoiding issuing IO to
   particular path due to it seemingly being heavily used).
 
 - Fix bug in DM cache metadata's loading of its discard bitset that
   could lead to all cache blocks being discarded if the very first cache
   block was discarded (thankfully in practice the first cache block is
   generally in use; be it FS superblock, partition table, disk label,
   etc).
 
 - Add testing-only DM dust target which simulates a device that has
   failing sectors and/or read failures.
 
 - Fix a DM init error path reference count hang that caused boot hangs
   if user supplied malformed input on kernel commandline.
 
 - Fix a couple issues with DM crypt target's logging being overly
   verbose or lacking context.
 
 - Various other small fixes to DM init, DM multipath, DM zoned, and DM
   crypt.
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Merge tag 'for-5.2/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - Improve DM snapshot target's scalability by using finer grained
   locking. Requires some list_bl interface improvements.

 - Add ability for DM integrity to use a bitmap mode, that tracks
   regions where data and metadata are out of sync, instead of using a
   journal.

 - Improve DM thin provisioning target to not write metadata changes to
   disk if the thin-pool and associated thin devices are merely
   activated but not used. This avoids metadata corruption due to
   concurrent activation of thin devices across different OS instances
   (e.g. split brain scenarios, which ultimately would be avoided if
   proper device filters were used -- but not having proper filtering
   has proven a very common configuration mistake)

 - Fix missing call to path selector type->end_io in DM multipath. This
   fixes reported performance problems due to inaccurate path selector
   IO accounting causing an imbalance of IO (e.g. avoiding issuing IO to
   particular path due to it seemingly being heavily used).

 - Fix bug in DM cache metadata's loading of its discard bitset that
   could lead to all cache blocks being discarded if the very first
   cache block was discarded (thankfully in practice the first cache
   block is generally in use; be it FS superblock, partition table, disk
   label, etc).

 - Add testing-only DM dust target which simulates a device that has
   failing sectors and/or read failures.

 - Fix a DM init error path reference count hang that caused boot hangs
   if user supplied malformed input on kernel commandline.

 - Fix a couple issues with DM crypt target's logging being overly
   verbose or lacking context.

 - Various other small fixes to DM init, DM multipath, DM zoned, and DM
   crypt.

* tag 'for-5.2/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (42 commits)
  dm: fix a couple brace coding style issues
  dm crypt: print device name in integrity error message
  dm crypt: move detailed message into debug level
  dm ioctl: fix hang in early create error condition
  dm integrity: whitespace, coding style and dead code cleanup
  dm integrity: implement synchronous mode for reboot handling
  dm integrity: handle machine reboot in bitmap mode
  dm integrity: add a bitmap mode
  dm integrity: introduce a function add_new_range_and_wait()
  dm integrity: allow large ranges to be described
  dm ingerity: pass size to dm_integrity_alloc_page_list()
  dm integrity: introduce rw_journal_sectors()
  dm integrity: update documentation
  dm integrity: don't report unused options
  dm integrity: don't check null pointer before kvfree and vfree
  dm integrity: correctly calculate the size of metadata area
  dm dust: Make dm_dust_init and dm_dust_exit static
  dm dust: remove redundant unsigned comparison to less than zero
  dm mpath: always free attached_handler_name in parse_path()
  dm init: fix max devices/targets checks
  ...
2019-05-16 15:55:48 -07:00
Rob Herring 8122de5460 dt-bindings: Convert vendor prefixes to json-schema
Convert the vendor prefix registry to a schema. This will enable checking
that new vendor prefixes are added (in addition to the less than perfect
checkpatch.pl check) and will also check against adding other prefixes
which are not vendors.

Converted vendor-prefixes.txt using the following sed script:

sed -e 's/\([a-zA-Z0-9\-]*\)[[:space:]]*\([a-zA-Z0-9].*\)/  "^\1,\.\*\":\n    description: \2/'

Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-16 15:27:21 -05:00
Linus Torvalds 01be377c62 media updates for v5.2-rc1
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Merge tag 'media/v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "Some fixes for some platform drivers (rockchip, atmel, omap, daVinci,
  tegra-cec, coda and rcar).

  Also includes a fix on one of the V4L2 uAPI doc, explaining a border
  case"

* tag 'media/v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: rockchip/vpu: Fix/re-order probe-error/remove path
  media: rockchip/vpu: Initialize mdev->bus_info
  media: rockchip/vpu: Get vdev from the file arg in vidioc_querycap()
  media: rockchip/vpu: Add missing dont_use_autosuspend() calls
  media: rockchip/vpu: Do not request id 0 for our video device
  media: tegra-cec: fix cec_notifier_parse_hdmi_phandle return check
  media: davinci/vpbe: array underflow in vpbe_enum_outputs()
  media: field-order.rst: clarify FIELD_ANY and FIELD_NONE
  media: staging/imx: add media device to capture register
  media: rcar-csi2: Propagate the FLD signal for NTSC and PAL
  media: rcar-csi2: restart CSI-2 link if error is detected
  media: omap_vout: potential buffer overflow in vidioc_dqbuf()
  media: coda: fix unset field and fail on invalid field in buf_prepare
  media: atmel: atmel-isc: fix asd memory allocation
  media: atmel: atmel-isc: fix INIT_WORK misplacement
  media: atmel: atmel-isc: limit incoming pixels per frame
2019-05-16 11:57:16 -07:00
Olof Johansson faff3fcf01 AT91 SoC for 5.2
- PM changes for SAM9X60
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Merge tag 'at91-5.2-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/late

AT91 SoC for 5.2

 - PM changes for SAM9X60

* tag 'at91-5.2-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: at91: pm: do not disable/enable PLLA for ULP modes
  ARM: at91: pm: disable RC oscillator in ULP0
  ARM: at91: pm: add ULP1 support for SAM9X60
  ARM: at91: pm: add support for per SoC wakeup source configuration
  ARM: at91: pm: keep at91_pm_backup_init() only for SAMA5D2 SoCs
  ARM: at91: pm: initial PM support for SAM9X60
  dt-bindings: arm: atmel: add binding for SAM9X60 SoC
  ARM: at91: pm: introduce at91_soc_pm structure

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-05-16 11:05:11 -07:00
Linus Torvalds d396360acd Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Misc fixes and updates:

   - a handful of MDS documentation/comment updates

   - a cleanup related to hweight interfaces

   - a SEV guest fix for large pages

   - a kprobes LTO fix

   - and a final cleanup commit for vDSO HPET support removal"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation/mds: Improve CPU buffer clear documentation
  x86/speculation/mds: Revert CPU buffer clear on double fault exit
  x86/kconfig: Disable CONFIG_GENERIC_HWEIGHT and remove __HAVE_ARCH_SW_HWEIGHT
  x86/mm: Do not use set_{pud, pmd}_safe() when splitting a large page
  x86/kprobes: Make trampoline_handler() global and visible
  x86/vdso: Remove hpet_page from vDSO
2019-05-16 11:02:27 -07:00
Maxime Ripard b1f35dfd7c
dt-bindings: sound: sun4i-spdif: Document that the RX channel can be missing
The H3 and compatibles controllers don't have any reception capabilities,
even though it was never documented as such in the binding before.

Therefore, on those controllers, we don't have the option to set an RX DMA
channel.

This was already done in the DTSI, but the binding itself was never
updated. Let's add a special case in the schemas.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-16 17:55:46 +01:00
Maxime Ripard 506c7f9b06
dt-bindings: sound: Convert Allwinner SPDIF binding to YAML
The Allwinner SoCs feature an SPDIF controller across multiple SoC
generations.

However, earlier generations were a bit simpler than the subsequent ones,
and for example would always have RX and TX capabilities, and no reset
lines.

In order to express this, let's create two YAML schemas instead of the free
form text we had before.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-16 17:55:38 +01:00
Linus Torvalds dc413a90ed ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
 Among the larger pieces:
 
  - Power management improvements for TI am335x and am437x (RTC suspend/wake)
  - Misc new additions for Amlogic (socinfo updates)
  - ZynqMP FPGA manager
  - Nvidia improvements for reset/powergate handling
  - PMIC wrapper for Mediatek MT8516
  - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

  Among the larger pieces:

   - Power management improvements for TI am335x and am437x (RTC
     suspend/wake)

   - Misc new additions for Amlogic (socinfo updates)

   - ZynqMP FPGA manager

   - Nvidia improvements for reset/powergate handling

   - PMIC wrapper for Mediatek MT8516

   - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
  soc: aspeed: fix Kconfig
  soc: add aspeed folder and misc drivers
  spi: zynqmp: Fix build break
  soc: imx: Add generic i.MX8 SoC driver
  MAINTAINERS: Update email for Qualcomm SoC maintainer
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
  optee: allow to work without static shared memory
  soc/tegra: pmc: Move powergate initialisation to probe
  soc/tegra: pmc: Remove reset sysfs entries on error
  soc/tegra: pmc: Fix reset sources and levels
  soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
  soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
  fpga manager: Adding FPGA Manager support for Xilinx zynqmp
  dt-bindings: fpga: Add bindings for ZynqMP fpga driver
  firmware: xilinx: Add fpga API's
  ...
2019-05-16 09:19:14 -07:00
Linus Torvalds e8a1d70117 ARM: Device-tree updates
Besides new bindings and additional descriptions of hardware blocks for
 various SoCs and boards, the main new contents here is:
 
 SoCs:
  - Intel Agilex (SoCFPGA)
  - NXP i.MX8MM (Quad Cortex-A53 with media/graphics focus)
 
 New boards:
  - Allwinner:
   + RerVision H3-DVK (H3)
   + Oceanic 5205 5inMFD (H6)
   + Beelink GS2 (H6)
   + Orange Pi 3 (H6)
  - Rockchip:
   + Orange Pi RK3399
   + Nanopi NEO4
   + Veyron-Mighty Chromebook variant
  - Amlogic:
   + SEI Robotics SEI510
  - ST Micro:
   + stm32mp157a discovery1
   + stm32mp157c discovery2
  - NXP:
   + Eckelmann ci4x10 (i.MX6DL)
   + i.MX8MM EVK (i.MX8MM)
   + ZII i.MX7 RPU2 (i.MX7)
   + ZII SPB4 (VF610)
   + Zii Ultra (i.MX8M)
   + TQ TQMa7S (i.MX7Solo)
   + TQ TQMa7D (i.MX7Dual)
   + Kobo Aura (i.MX50)
   + Menlosystems M53 (i.MX53)j
  - Nvidia:
   + Jetson Nano (Tegra T210)
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM Device-tree updates from Olof Johansson:
 "Besides new bindings and additional descriptions of hardware blocks
  for various SoCs and boards, the main new contents here is:

  SoCs:
   - Intel Agilex (SoCFPGA)
   - NXP i.MX8MM (Quad Cortex-A53 with media/graphics focus)

  New boards:
   - Allwinner:
      + RerVision H3-DVK (H3)
      + Oceanic 5205 5inMFD (H6)
      + Beelink GS2 (H6)
      + Orange Pi 3 (H6)
   - Rockchip:
      + Orange Pi RK3399
      + Nanopi NEO4
      + Veyron-Mighty Chromebook variant
   - Amlogic:
      + SEI Robotics SEI510
   - ST Micro:
      + stm32mp157a discovery1
      + stm32mp157c discovery2
   - NXP:
      + Eckelmann ci4x10 (i.MX6DL)
      + i.MX8MM EVK (i.MX8MM)
      + ZII i.MX7 RPU2 (i.MX7)
      + ZII SPB4 (VF610)
      + Zii Ultra (i.MX8M)
      + TQ TQMa7S (i.MX7Solo)
      + TQ TQMa7D (i.MX7Dual)
      + Kobo Aura (i.MX50)
      + Menlosystems M53 (i.MX53)j
   - Nvidia:
      + Jetson Nano (Tegra T210)"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (593 commits)
  arm64: dts: bitmain: Add UART pinctrl support for Sophon Edge
  arm64: dts: bitmain: Add pinctrl support for BM1880 SoC
  arm64: dts: bitmain: Add GPIO Line names for Sophon Edge board
  arm64: dts: bitmain: Add GPIO support for BM1880 SoC
  ARM: dts: gemini: Indent DIR-685 partition table
  dt-bindings: hwmon (pwm-fan) Remove dead "cooling-*-state" properties
  ARM: dts: qcom-apq8064: Set 'cxo_board' as ref clock of the DSI PHY
  arm64: dts: msm8998: thermal: Restrict thermal zone name length to under 20
  arm64: dts: msm8998: thermal: Fix number of supported sensors
  arm64: dts: msm8998-mtp: thermal: Remove skin and battery thermal zones
  arm64: dts: exynos: Move fixed-clocks out of soc
  arm64: dts: exynos: Move pmu and timer nodes out of soc
  ARM: dts: s5pv210: Fix camera clock provider on Goni board
  ARM: dts: exynos: Properly override node to use MDMA0 on Universal C210
  ARM: dts: exynos: Move fixed-clocks out of soc on Exynos3250
  ARM: dts: exynos: Remove unneeded address/size cells from fixed-clock on Exynos3250
  ARM: dts: exynos: Move pmu and timer nodes out of soc
  arm64: dts: rockchip: fix IO domain voltage setting of APIO5 on rockpro64
  arm64: dts: db820c: Add sound card support
  arm64: dts: apq8096-db820c: Add HDMI display support
  ...
2019-05-16 08:38:17 -07:00
Linus Torvalds 22c58fd70c ARM: SoC platform updates
SoC updates, mostly refactorings and cleanups of old legacy platforms.
 Major themes this release:
 
  - Conversion of ixp4xx to a modern platform (drivers, DT, bindings)
  - Moving some of the ep93xx headers around to get it closer to multiplatform enabled.
  - Cleanups of Davinci
 
 This tag also contains a few patches that were queued up as fixes before
 5.1 but I didn't get sent in before release.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC updates, mostly refactorings and cleanups of old legacy platforms.

  Major themes this release:

   - Conversion of ixp4xx to a modern platform (drivers, DT, bindings)

   - Moving some of the ep93xx headers around to get it closer to
     multiplatform enabled.

   - Cleanups of Davinci

  This also contains a few patches that were queued up as fixes before
  5.1 but I didn't get sent in before release"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits)
  ARM: debug-ll: add default address for digicolor
  ARM: u300: regulator: add MODULE_LICENSE()
  ARM: ep93xx: move private headers out of mach/*
  ARM: ep93xx: move pinctrl interfaces into include/linux/soc
  ARM: ep93xx: keypad: stop using mach/platform.h
  ARM: ep93xx: move network platform data to separate header
  ARM: stm32: add AMBA support for stm32 family
  MAINTAINERS: update arch/arm/mach-davinci
  ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu
  ARM: dts: Add queue manager and NPE to the IXP4xx DTSI
  soc: ixp4xx: qmgr: Add DT probe code
  soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr
  soc: ixp4xx: npe: Add DT probe code
  soc: ixp4xx: Add DT bindings for IXP4xx NPE
  soc: ixp4xx: qmgr: Pass resources
  soc: ixp4xx: Remove unused functions
  soc: ixp4xx: Uninline several functions
  soc: ixp4xx: npe: Pass addresses as resources
  ARM: ixp4xx: Turn the QMGR into a platform device
  ARM: ixp4xx: Turn the NPE into a platform device
  ...
2019-05-16 08:31:32 -07:00
David Howells b960a34b73 rxrpc: Allow the kernel to mark a call as being non-interruptible
Allow kernel services using AF_RXRPC to indicate that a call should be
non-interruptible.  This allows kafs to make things like lock-extension and
writeback data storage calls non-interruptible.

If this is set, signals will be ignored for operations on that call where
possible - such as waiting to get a call channel on an rxrpc connection.

It doesn't prevent UDP sendmsg from being interrupted, but that will be
handled by packet retransmission.

rxrpc_kernel_recv_data() isn't affected by this since that never waits,
preferring instead to return -EAGAIN and leave the waiting to the caller.

Userspace initiated calls can't be set to be uninterruptible at this time.

Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16 16:25:20 +01:00
Linus Torvalds a455eda33f Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal soc updates from Eduardo Valentin:

 - thermal core has a new devm_* API for registering cooling devices. I
   took the entire series, that is why you see changes on drivers/hwmon
   in this pull (Guenter Roeck)

 - rockchip thermal driver gains support to PX30 SoC (Elaine Zhang)

 - the generic-adc thermal driver now considers the lookup table DT
   property as optional (Jean-Francois Dagenais)

 - Refactoring of tsens thermal driver (Amit Kucheria)

 - Cleanups on cpu cooling driver (Daniel Lezcano)

 - broadcom thermal driver dropped support to ACPI (Srinath Mannam)

 - tegra thermal driver gains support to OC hw throttle and GPU throtle
   (Wei Ni)

 - Fixes in several thermal drivers.

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (59 commits)
  hwmon: (pwm-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (npcm750-pwm-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (mlxreg-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (gpio-fan) Use devm_thermal_of_cooling_device_register
  hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register
  thermal: rcar_gen3_thermal: Fix to show correct trip points number
  thermal: rcar_thermal: update calculation formula for R-Car Gen3 SoCs
  thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
  thermal: rockchip: Support the PX30 SoC in thermal driver
  dt-bindings: rockchip-thermal: Support the PX30 SoC compatible
  thermal: rockchip: fix up the tsadc pinctrl setting error
  thermal: broadcom: Remove ACPI support
  thermal: Fix build error of missing devm_ioremap_resource on UM
  thermal/drivers/cpu_cooling: Remove pointless field
  thermal/drivers/cpu_cooling: Add Software Package Data Exchange (SPDX)
  thermal/drivers/cpu_cooling: Fixup the header and copyright
  thermal/drivers/cpu_cooling: Remove pointless test in power2state()
  thermal: rcar_gen3_thermal: disable interrupt in .remove
  thermal: rcar_gen3_thermal: fix interrupt type
  thermal: Introduce devm_thermal_of_cooling_device_register
  ...
2019-05-16 07:56:57 -07:00
David Howells bbd172e316 rxrpc: Provide kernel interface to set max lifespan on a call
Provide an interface to set max lifespan on a call from inside of the
kernel without having to call kernel_sendmsg().

Signed-off-by: David Howells <dhowells@redhat.com>
2019-05-16 15:48:30 +01:00
Jerome Brunet e35f5ad6a9
ASoC: meson: add tohdmitx DT bindings
Add the bindings and the related documentation for the audio hdmitx
control glue of the Amlogic g12a SoC family

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-16 12:13:27 +01:00
Andy Lutomirski 9d8d0294e7 x86/speculation/mds: Improve CPU buffer clear documentation
On x86_64, all returns to usermode go through
prepare_exit_to_usermode(), with the sole exception of do_nmi().
This even includes machine checks -- this was added several years
ago to support MCE recovery.  Update the documentation.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 04dcbdb805 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/999fa9e126ba6a48e9d214d2f18dbde5c62ac55c.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-16 09:05:12 +02:00
Andy Lutomirski 88640e1dcd x86/speculation/mds: Revert CPU buffer clear on double fault exit
The double fault ESPFIX path doesn't return to user mode at all --
it returns back to the kernel by simulating a #GP fault.
prepare_exit_to_usermode() will run on the way out of
general_protection before running user code.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 04dcbdb805 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/ac97612445c0a44ee10374f6ea79c222fe22a5c4.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-16 09:05:11 +02:00
Olof Johansson 7a0c4c1708 Merge branch 'fixes' into arm/soc
Merge in a few pending fixes from pre-5.1 that didn't get sent in:

MAINTAINERS: update arch/arm/mach-davinci
ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect
ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1
ARM: dts: imx6q-logicpd: Reduce inrush current on start
ARM: dts: imx: Fix the AR803X phy-mode
ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing
arm64: dts: allwinner: a64: Rename hpvcc-supply to cpvdd-supply
ARM: sunxi: fix a leaked reference by adding missing of_node_put
ARM: sunxi: fix a leaked reference by adding missing of_node_put

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-05-15 22:51:48 -07:00
Linus Torvalds 8649efb2f8 power supply and reset changes for the v5.2 series
Core:
  * Add over-current health state
  * Add standard, adaptive and custom charge types
  * Add new properties for start/end charge threshold
 
 New Drivers / Hardware:
  * UCS1002 Programmable USB Port Power Controller
  * Ingenic JZ47xx Battery Fuel Gauge
  * AXP20x USB Power: Add AXP813 support
  * AT91 poweroff: Add SAM9X60 support
  * OLPC battery: Add XO-1.5 and XO-1.75 support
 
 Misc. Changes:
  * syscon-reboot: support mask property
  * AXP288 fuel gauge: Blacklist ACEPC T8/T11
   - Looks like some vendor thought it's a good idea to
     build a desktop system with a fuel gauge, that slowly
     "discharges"...
  * cpcap-battery: Fix calculation errors
  * misc. fixes
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Merge tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - Add over-current health state
   - Add standard, adaptive and custom charge types
   - Add new properties for start/end charge threshold

  New Drivers / Hardware:
   - UCS1002 Programmable USB Port Power Controller
   - Ingenic JZ47xx Battery Fuel Gauge
   - AXP20x USB Power: Add AXP813 support
   - AT91 poweroff: Add SAM9X60 support
   - OLPC battery: Add XO-1.5 and XO-1.75 support

  Misc Changes:
   - syscon-reboot: support mask property
   - AXP288 fuel gauge: Blacklist ACEPC T8/T11. Looks like some vendor
     thought it's a good idea to build a desktop system with a fuel
     gauge, that slowly "discharges"...
   - cpcap-battery: Fix calculation errors
   - misc fixes"

* tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (54 commits)
  power: supply: olpc_battery: force the le/be casts
  power: supply: ucs1002: Fix build error without CONFIG_REGULATOR
  power: supply: ucs1002: Fix wrong return value checking
  power: supply: Add driver for Microchip UCS1002
  dt-bindings: power: supply: Add bindings for Microchip UCS1002
  power: supply: core: Add POWER_SUPPLY_HEALTH_OVERCURRENT constant
  power: supply: core: fix clang -Wunsequenced
  power: supply: core: Add missing documentation for CHARGE_CONTROL_* properties
  power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties
  power: supply: core: Add Standard, Adaptive, and Custom charge types
  power: supply: axp288_fuel_gauge: Add ACEPC T8 and T11 mini PCs to the blacklist
  power: supply: bq27xxx_battery: Notify also about status changes
  power: supply: olpc_battery: Have the framework register sysfs files for us
  power: supply: olpc_battery: Add OLPC XO 1.75 support
  power: supply: olpc_battery: Avoid using platform_info
  power: supply: olpc_battery: Use devm_power_supply_register()
  power: supply: olpc_battery: Move priv data to a struct
  power: supply: olpc_battery: Use DT to get battery version
  x86/platform/olpc: Use a correct version when making up a battery node
  x86/platform/olpc: Trivial code move in DT fixup
  ...
2019-05-15 18:50:40 -07:00
Linus Torvalds 5fd09ba682 xen: fixes and features for 5.2-rc1
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Merge tag 'for-linus-5.2b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - some minor cleanups

 - two small corrections for Xen on ARM

 - two fixes for Xen PVH guest support

 - a patch for a new command line option to tune virtual timer handling

* tag 'for-linus-5.2b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/arm: Use p2m entry with lock protection
  xen/arm: Free p2m entry if fail to add it to RB tree
  xen/pvh: correctly setup the PV EFI interface for dom0
  xen/pvh: set xen_domain_type to HVM in xen_pvh_init
  xenbus: drop useless LIST_HEAD in xenbus_write_watch() and xenbus_file_write()
  xen-netfront: mark expected switch fall-through
  xen: xen-pciback: fix warning Using plain integer as NULL pointer
  x86/xen: Add "xen_timer_slop" command line option
2019-05-15 18:44:52 -07:00
David S. Miller c7d5ec26ea Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2019-05-16

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix a use after free in __dev_map_entry_free(), from Eric.

2) Several sockmap related bug fixes: a splat in strparser if
   it was never initialized, remove duplicate ingress msg list
   purging which can race, fix msg->sg.size accounting upon
   skb to msg conversion, and last but not least fix a timeout
   bug in tcp_bpf_wait_data(), from John.

3) Fix LRU map to avoid messing with eviction heuristics upon
   syscall lookup, e.g. map walks from user space side will
   then lead to eviction of just recently created entries on
   updates as it would mark all map entries, from Daniel.

4) Don't bail out when libbpf feature probing fails. Also
   various smaller fixes to flow_dissector test, from Stanislav.

5) Fix missing brackets for BTF_INT_OFFSET() in UAPI, from Gary.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-15 18:28:44 -07:00
Linus Torvalds d2d8b14604 The major changes in this tracing update includes:
- Removing of non-DYNAMIC_FTRACE from 32bit x86
 
  - Removing of mcount support from x86
 
  - Emulating a call from int3 on x86_64, fixes live kernel patching
 
  - Consolidated Tracing Error logs file
 
 Minor updates:
 
  - Removal of klp_check_compiler_support()
 
  - kdb ftrace dumping output changes
 
  - Accessing and creating ftrace instances from inside the kernel
 
  - Clean up of #define if macro
 
  - Introduction of TRACE_EVENT_NOP() to disable trace events based on config
    options
 
 And other minor fixes and clean ups
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Merge tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "The major changes in this tracing update includes:

   - Removal of non-DYNAMIC_FTRACE from 32bit x86

   - Removal of mcount support from x86

   - Emulating a call from int3 on x86_64, fixes live kernel patching

   - Consolidated Tracing Error logs file

  Minor updates:

   - Removal of klp_check_compiler_support()

   - kdb ftrace dumping output changes

   - Accessing and creating ftrace instances from inside the kernel

   - Clean up of #define if macro

   - Introduction of TRACE_EVENT_NOP() to disable trace events based on
     config options

  And other minor fixes and clean ups"

* tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (44 commits)
  x86: Hide the int3_emulate_call/jmp functions from UML
  livepatch: Remove klp_check_compiler_support()
  ftrace/x86: Remove mcount support
  ftrace/x86_32: Remove support for non DYNAMIC_FTRACE
  tracing: Simplify "if" macro code
  tracing: Fix documentation about disabling options using trace_options
  tracing: Replace kzalloc with kcalloc
  tracing: Fix partial reading of trace event's id file
  tracing: Allow RCU to run between postponed startup tests
  tracing: Fix white space issues in parse_pred() function
  tracing: Eliminate const char[] auto variables
  ring-buffer: Fix mispelling of Calculate
  tracing: probeevent: Fix to make the type of $comm string
  tracing: probeevent: Do not accumulate on ret variable
  tracing: uprobes: Re-enable $comm support for uprobe events
  ftrace/x86_64: Emulate call function while updating in breakpoint handler
  x86_64: Allow breakpoints to emulate call instructions
  x86_64: Add gap to int3 to allow for call emulation
  tracing: kdb: Allow ftdump to skip all but the last few entries
  tracing: Add trace_total_entries() / trace_total_entries_cpu()
  ...
2019-05-15 16:05:47 -07:00
Paolo Bonzini dd53f6102c KVM/arm updates for 5.2
- guest SVE support
 - guest Pointer Authentication support
 - Better discrimination of perf counters between host and guests
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Merge tag 'kvmarm-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for 5.2

- guest SVE support
- guest Pointer Authentication support
- Better discrimination of perf counters between host and guests

Conflicts:
	include/uapi/linux/kvm.h
2019-05-15 23:41:43 +02:00
Paolo Bonzini 59c5c58c5b Second PPC KVM update for 5.2
- Fix a bug, fix a spelling mistake, remove some useless code.
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Merge tag 'kvm-ppc-next-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD

PPC KVM update for 5.2

* Support for guests to access the new POWER9 XIVE interrupt controller
  hardware directly, reducing interrupt latency and overhead for guests.

* In-kernel implementation of the H_PAGE_INIT hypercall.

* Reduce memory usage of sparsely-populated IOMMU tables.

* Several bug fixes.

Second PPC KVM update for 5.2

* Fix a bug, fix a spelling mistake, remove some useless code.
2019-05-15 23:39:38 +02:00
Linus Torvalds fcdec14365 More ACPI updates for 5.2-rc1
- Update the ACPICA code in the kernel to upstream revision 20190509
    including one regression fix:
    * Prevent excessive ACPI debug messages from being printed
      by moving the ACPI_DEBUG_DEFAULT definition to the right
      place (Erik Schmauss).
 
  - Set the enable_for_wake bits for wakeup GPEs during suspend to
    idle to allow acpi_enable_all_wakeup_gpes() to enable them as
    aproppriate and make wakeup devices sighaling events through ACPI
    GPEs work with suspend-to-idle again (Rajat Jain).
 
  - Use 64 bits to store the return values of _ADR which are assumed
    to be 64-bit by some bus specs and may contain nonzero bits in the
    upper 32 bits part for some devices (Pierre-Louis Bossart).
 
  - Fix two minor issues with the ACPI documentation (Sakari Ailus).
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Merge tag 'acpi-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These fix two regressions introduced during the 5.0 cycle, in ACPICA
  and in device PM, cause the values returned by _ADR to be stored in 64
  bits and fix two ACPI documentation issues.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20190509
     including one regression fix:
       * Prevent excessive ACPI debug messages from being printed by
         moving the ACPI_DEBUG_DEFAULT definition to the right place
         (Erik Schmauss).

   - Set the enable_for_wake bits for wakeup GPEs during suspend to idle
     to allow acpi_enable_all_wakeup_gpes() to enable them as
     aproppriate and make wakeup devices sighaling events through ACPI
     GPEs work with suspend-to-idle again (Rajat Jain).

   - Use 64 bits to store the return values of _ADR which are assumed to
     be 64-bit by some bus specs and may contain nonzero bits in the
     upper 32 bits part for some devices (Pierre-Louis Bossart).

   - Fix two minor issues with the ACPI documentation (Sakari Ailus)"

* tag 'acpi-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PM: Set enable_for_wake for wakeup GPEs during suspend-to-idle
  Documentation: ACPI: Direct references are allowed to devices only
  Documentation: ACPI: Use tabs for graph ASL indentation
  ACPICA: Update version to 20190509
  ACPICA: Linux: move ACPI_DEBUG_DEFAULT flag out of ifndef
  ACPI: bus: change _ADR representation to 64 bits
2019-05-15 08:58:49 -07:00
Waiman Long 5ac893b8cb ipc: allow boot time extension of IPCMNI from 32k to 16M
The maximum number of unique System V IPC identifiers was limited to
32k.  That limit should be big enough for most use cases.

However, there are some users out there requesting for more, especially
those that are migrating from Solaris which uses 24 bits for unique
identifiers.  To satisfy the need of those users, a new boot time kernel
option "ipcmni_extend" is added to extend the IPCMNI value to 16M.  This
is a 512X increase which should be big enough for users out there that
need a large number of unique IPC identifier.

The use of this new option will change the pattern of the IPC
identifiers returned by functions like shmget(2).  An application that
depends on such pattern may not work properly.  So it should only be
used if the users really need more than 32k of unique IPC numbers.

This new option does have the side effect of reducing the maximum number
of unique sequence numbers from 64k down to 128.  So it is a trade-off.

The computation of a new IPC id is not done in the performance critical
path.  So a little bit of additional overhead shouldn't have any real
performance impact.

Link: http://lkml.kernel.org/r/20190329204930.21620-1-longman@redhat.com
Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:52 -07:00
Tom Burkart 652e22185a dt-bindings: pps: pps-gpio PPS ECHO implementation
This patch implements the device tree binding changes required for the
PPS ECHO functionality for pps-gpio, that sysfs claims is available
already.

It adds two DT properties for configuring the PPS ECHO functionality.

This patch is provided separated from the rest of the patch per
Documentation/devicetree/bindings/submitting-patches.txt.

This patch was originally written by Lukas Senger as part of a masters
thesis project and modified for inclusion into the linux kernel by Tom
Burkart.

Link: http://lkml.kernel.org/r/20190324043305.6627-3-tom@aussec.com
Signed-off-by: Tom Burkart <tom@aussec.com>
Signed-off-by: Lukas Senger <lukas@fridolin.com>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:51 -07:00
Aaro Koskinen b287a25a71 panic/reboot: allow specifying reboot_mode for panic only
Allow specifying reboot_mode for panic only.  This is needed on systems
where ramoops is used to store panic logs, and user wants to use warm
reset to preserve those, while still having cold reset on normal
reboots.

Link: http://lkml.kernel.org/r/20190322004735.27702-1-aaro.koskinen@iki.fi
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:51 -07:00
Tri Vo aa069a23a2 gcov: docs: add a note on GCC vs Clang differences
Document some things of note to gcov users:
1. GCC gcov and Clang llvm-cov tools are not compatible.
2. The use of GCC vs Clang is transparent at build-time.

Also adjust the documentation to account for the removal of config symbol
CONFIG_GCOV_FORMAT_AUTODETECT by commit 6a61b70b43 ("gcov: remove
CONFIG_GCOV_FORMAT_AUTODETECT").

Link: http://lkml.kernel.org/r/20190318025411.98014-4-trong@android.com
Signed-off-by: Tri Vo <trong@android.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Greg Hackmann <ghackmann@android.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petri Gynther <pgynther@google.com>
Cc: Prasad Sodagudi <psodagud@quicinc.com>
Cc: Trilok Soni <tsoni@quicinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:51 -07:00
Ian Kent 1dcaa138fc autofs: add description of ignore pseudo mount option
Add a description of the "ignore" pseudo mount option that can be used
to provide a generic indicator to applications that the mount entry
should be ignored when displaying mount information.

Link: http://lkml.kernel.org/r/155287084617.12593.812733161112154904.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:50 -07:00
Ian Kent 841964e86a autofs: update mount control expire desription with AUTOFS_EXP_FORCED
Describe AUTOFS_EXP_FORCED in addition to AUTOFS_EXP_IMMEDIATE in the
description of the AUTOFS_DEV_IOCTL_EXPIRE_CMD ioctl.

Link: http://lkml.kernel.org/r/155287084078.12593.15000931045413195778.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:50 -07:00
Ian Kent f23ceaac6a autofs: update AUTOFS_EXP_LEAVES description
Update the description of AUTOFS_EXP_LEAVES to cover its possible future
use with amd format mount maps.

Link: http://lkml.kernel.org/r/155287083538.12593.18163159677020718048.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:50 -07:00
Ian Kent 9200026623 autofs: update autofs.txt for strictexpire mount option
A "strictexpire" mount option has been added to the autofs file system.

It is meant to be used in cases where a GUI continually accesses or an
application frquently scans an automount directory tree causing an
accumulation of otherwise unused mounts.

Link: http://lkml.kernel.org/r/155287083000.12593.2722713092537666885.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:50 -07:00
Ian Kent 2ad56addb9 autofs: fix some word usage oddities in autofs.txt
Alter a few word usages in Documentation/filesystems/autofs.txt and
correct some spelling mistakes.

Link: http://lkml.kernel.org/r/155287082394.12593.6506084453911662450.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:50 -07:00
Andy Shevchenko 2c64e9cb0b lib: Move mathematic helpers to separate folder
For better maintenance and expansion move the mathematic helpers to the
separate folder.

No functional change intended.

Note, the int_sqrt() is not used as a part of lib, so, moved to regular
obj.

Link: http://lkml.kernel.org/r/20190323172531.80025-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Ray Jui <rjui@broadcom.com>
[mchehab+samsung@kernel.org: fix broken doc references for div64.c and gcd.c]
  Link: http://lkml.kernel.org/r/734f49bae5d4052b3c25691dfefad59bea2e5843.1555580999.git.mchehab+samsung@kernel.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:49 -07:00
Dan Williams e900a918b0 mm: shuffle initial free memory to improve memory-side-cache utilization
Patch series "mm: Randomize free memory", v10.

This patch (of 3):

Randomization of the page allocator improves the average utilization of
a direct-mapped memory-side-cache.  Memory side caching is a platform
capability that Linux has been previously exposed to in HPC
(high-performance computing) environments on specialty platforms.  In
that instance it was a smaller pool of high-bandwidth-memory relative to
higher-capacity / lower-bandwidth DRAM.  Now, this capability is going
to be found on general purpose server platforms where DRAM is a cache in
front of higher latency persistent memory [1].

Robert offered an explanation of the state of the art of Linux
interactions with memory-side-caches [2], and I copy it here:

    It's been a problem in the HPC space:
    http://www.nersc.gov/research-and-development/knl-cache-mode-performance-coe/

    A kernel module called zonesort is available to try to help:
    https://software.intel.com/en-us/articles/xeon-phi-software

    and this abandoned patch series proposed that for the kernel:
    https://lkml.kernel.org/r/20170823100205.17311-1-lukasz.daniluk@intel.com

    Dan's patch series doesn't attempt to ensure buffers won't conflict, but
    also reduces the chance that the buffers will. This will make performance
    more consistent, albeit slower than "optimal" (which is near impossible
    to attain in a general-purpose kernel).  That's better than forcing
    users to deploy remedies like:
        "To eliminate this gradual degradation, we have added a Stream
         measurement to the Node Health Check that follows each job;
         nodes are rebooted whenever their measured memory bandwidth
         falls below 300 GB/s."

A replacement for zonesort was merged upstream in commit cc9aec03e5
("x86/numa_emulation: Introduce uniform split capability").  With this
numa_emulation capability, memory can be split into cache sized
("near-memory" sized) numa nodes.  A bind operation to such a node, and
disabling workloads on other nodes, enables full cache performance.
However, once the workload exceeds the cache size then cache conflicts
are unavoidable.  While HPC environments might be able to tolerate
time-scheduling of cache sized workloads, for general purpose server
platforms, the oversubscribed cache case will be the common case.

The worst case scenario is that a server system owner benchmarks a
workload at boot with an un-contended cache only to see that performance
degrade over time, even below the average cache performance due to
excessive conflicts.  Randomization clips the peaks and fills in the
valleys of cache utilization to yield steady average performance.

Here are some performance impact details of the patches:

1/ An Intel internal synthetic memory bandwidth measurement tool, saw a
   3X speedup in a contrived case that tries to force cache conflicts.
   The contrived cased used the numa_emulation capability to force an
   instance of the benchmark to be run in two of the near-memory sized
   numa nodes.  If both instances were placed on the same emulated they
   would fit and cause zero conflicts.  While on separate emulated nodes
   without randomization they underutilized the cache and conflicted
   unnecessarily due to the in-order allocation per node.

2/ A well known Java server application benchmark was run with a heap
   size that exceeded cache size by 3X.  The cache conflict rate was 8%
   for the first run and degraded to 21% after page allocator aging.  With
   randomization enabled the rate levelled out at 11%.

3/ A MongoDB workload did not observe measurable difference in
   cache-conflict rates, but the overall throughput dropped by 7% with
   randomization in one case.

4/ Mel Gorman ran his suite of performance workloads with randomization
   enabled on platforms without a memory-side-cache and saw a mix of some
   improvements and some losses [3].

While there is potentially significant improvement for applications that
depend on low latency access across a wide working-set, the performance
may be negligible to negative for other workloads.  For this reason the
shuffle capability defaults to off unless a direct-mapped
memory-side-cache is detected.  Even then, the page_alloc.shuffle=0
parameter can be specified to disable the randomization on those systems.

Outside of memory-side-cache utilization concerns there is potentially
security benefit from randomization.  Some data exfiltration and
return-oriented-programming attacks rely on the ability to infer the
location of sensitive data objects.  The kernel page allocator, especially
early in system boot, has predictable first-in-first out behavior for
physical pages.  Pages are freed in physical address order when first
onlined.

Quoting Kees:
    "While we already have a base-address randomization
     (CONFIG_RANDOMIZE_MEMORY), attacks against the same hardware and
     memory layouts would certainly be using the predictability of
     allocation ordering (i.e. for attacks where the base address isn't
     important: only the relative positions between allocated memory).
     This is common in lots of heap-style attacks. They try to gain
     control over ordering by spraying allocations, etc.

     I'd really like to see this because it gives us something similar
     to CONFIG_SLAB_FREELIST_RANDOM but for the page allocator."

While SLAB_FREELIST_RANDOM reduces the predictability of some local slab
caches it leaves vast bulk of memory to be predictably in order allocated.
However, it should be noted, the concrete security benefits are hard to
quantify, and no known CVE is mitigated by this randomization.

Introduce shuffle_free_memory(), and its helper shuffle_zone(), to perform
a Fisher-Yates shuffle of the page allocator 'free_area' lists when they
are initially populated with free memory at boot and at hotplug time.  Do
this based on either the presence of a page_alloc.shuffle=Y command line
parameter, or autodetection of a memory-side-cache (to be added in a
follow-on patch).

The shuffling is done in terms of CONFIG_SHUFFLE_PAGE_ORDER sized free
pages where the default CONFIG_SHUFFLE_PAGE_ORDER is MAX_ORDER-1 i.e.  10,
4MB this trades off randomization granularity for time spent shuffling.
MAX_ORDER-1 was chosen to be minimally invasive to the page allocator
while still showing memory-side cache behavior improvements, and the
expectation that the security implications of finer granularity
randomization is mitigated by CONFIG_SLAB_FREELIST_RANDOM.  The
performance impact of the shuffling appears to be in the noise compared to
other memory initialization work.

This initial randomization can be undone over time so a follow-on patch is
introduced to inject entropy on page free decisions.  It is reasonable to
ask if the page free entropy is sufficient, but it is not enough due to
the in-order initial freeing of pages.  At the start of that process
putting page1 in front or behind page0 still keeps them close together,
page2 is still near page1 and has a high chance of being adjacent.  As
more pages are added ordering diversity improves, but there is still high
page locality for the low address pages and this leads to no significant
impact to the cache conflict rate.

[1]: https://itpeernetwork.intel.com/intel-optane-dc-persistent-memory-operating-modes/
[2]: https://lkml.kernel.org/r/AT5PR8401MB1169D656C8B5E121752FC0F8AB120@AT5PR8401MB1169.NAMPRD84.PROD.OUTLOOK.COM
[3]: https://lkml.org/lkml/2018/10/12/309

[dan.j.williams@intel.com: fix shuffle enable]
  Link: http://lkml.kernel.org/r/154943713038.3858443.4125180191382062871.stgit@dwillia2-desk3.amr.corp.intel.com
[cai@lca.pw: fix SHUFFLE_PAGE_ALLOCATOR help texts]
  Link: http://lkml.kernel.org/r/20190425201300.75650-1-cai@lca.pw
Link: http://lkml.kernel.org/r/154899811738.3165233.12325692939590944259.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Robert Elliott <elliott@hpe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:48 -07:00
Suren Baghdasaryan 0e94682b73 psi: introduce psi monitor
Psi monitor aims to provide a low-latency short-term pressure detection
mechanism configurable by users.  It allows users to monitor psi metrics
growth and trigger events whenever a metric raises above user-defined
threshold within user-defined time window.

Time window and threshold are both expressed in usecs.  Multiple psi
resources with different thresholds and window sizes can be monitored
concurrently.

Psi monitors activate when system enters stall state for the monitored
psi metric and deactivate upon exit from the stall state.  While system
is in the stall state psi signal growth is monitored at a rate of 10
times per tracking window.  Min window size is 500ms, therefore the min
monitoring interval is 50ms.  Max window size is 10s with monitoring
interval of 1s.

When activated psi monitor stays active for at least the duration of one
tracking window to avoid repeated activations/deactivations when psi
signal is bouncing.

Notifications to the users are rate-limited to one per tracking window.

Link: http://lkml.kernel.org/r/20190319235619.260832-8-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:48 -07:00
Linus Torvalds e0654264c4 - Fix-ups
- Remove unused BACKLIGHT_LCD_SUPPORT symbol; Kconfig
    - Remove unused BACKLIGHT_CLASS_DEVICE dependencies; Kconfig
    - Add DT support; lm3630a_bl
 
  - Bug Fixes
    - Fix error path issues; lm3630a_bl
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Merge tag 'backlight-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "Fix-ups:
   - Remove unused BACKLIGHT_LCD_SUPPORT symbol
   - Remove unused BACKLIGHT_CLASS_DEVICE dependencies
   - Add DT support to lm3630a_bl

  Bug Fixes:
   - Fix error path issues in lm3630a_bl"

* tag 'backlight-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: lm3630a: Add firmware node support
  dt-bindings: backlight: Add lm3630a bindings
  backlight: lm3630a: Return 0 on success in update_status functions
  video: lcd: Remove useless BACKLIGHT_CLASS_DEVICE dependencies
  video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel symbol
2019-05-14 10:45:03 -07:00
Linus Torvalds ebcf5bb282 - Core Frameworks
- Document (kerneldoc) core mfd_add_devices() API
 
  - New Drivers
    - Add support for Altera SOCFPGA System Manager
    - Add support for Maxim MAX77650/77651 PMIC
    - Add support for Maxim MAX77663 PMIC
    - Add support for ST Multi-Function eXpander (STMFX)
 
  - New Device Support
    - Add support for LEDs to Intel Cherry Trail Whiskey Cove PMIC
    - Add support for RTC to SAMSUNG Electronics S2MPA01 PMIC
    - Add support for SAM9X60 to Atmel HLCDC (High-end LCD Controller)
    - Add support for USB X-Powers AXP 8xx PMICs
    - Add support for Integrated Sensor Hub (ISH) to ChromeOS EC
    - Add support for USB PD Logger to ChromeOS EC
    - Add support for AXP223 to X-Powers AXP series PMICs
    - Add support for Power Supply to X-Powers AXP 803 PMICs
    - Add support for Comet Lake to Intel Low Power Subsystem
    - Add support for Fingerprint MCU to ChromeOS EC
    - Add support for Touchpad MCU to ChromeOS EC
    - Move TI LM3532 support to LED
 
  - New Functionality
    - Add/extend DT support; max77650, max77620
    - Add support for power-off; max77620
    - Add support for clocking; syscon
    - Add support for host sleep event; cros_ec
 
  - Fix-ups
    - Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs
    - Remove unused functionality; rk808, da9063-*
    - SPDX conversion; da9063-*, atmel-*,
    - Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr
    - Fix-up DT bindings; ti-lmu, cirrus,lochnagar
    - Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb
 
  - Bug Fixes
    - Fix incorrect defined values; max77620, da9063
    - Fix device initialisation; twl6040
    - Reset device on init; intel-lpss
    - Fix build warnings when !OF; sun6i-prcm
    - Register OF match tables; tps65912-spi
    - Fix DMI matching; intel_quark_i2c_gpio
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Merge tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core Framework:
   - Document (kerneldoc) core mfd_add_devices() API

  New Drivers:
   - Altera SOCFPGA System Manager
   - Maxim MAX77650/77651 PMIC
   - Maxim MAX77663 PMIC
   - ST Multi-Function eXpander (STMFX)

  New Device Support:
   - LEDs support in Intel Cherry Trail Whiskey Cove PMIC
   - RTC support in SAMSUNG Electronics S2MPA01 PMIC
   - SAM9X60 support in Atmel HLCDC (High-end LCD Controller)
   - USB X-Powers AXP 8xx PMICs
   - Integrated Sensor Hub (ISH) in ChromeOS EC
   - USB PD Logger in ChromeOS EC
   - AXP223 in X-Powers AXP series PMICs
   - Power Supply in X-Powers AXP 803 PMICs
   - Comet Lake in Intel Low Power Subsystem
   - Fingerprint MCU in ChromeOS EC
   - Touchpad MCU in ChromeOS EC
   - Move TI LM3532 support to LED

  New Functionality:
   - max77650, max77620: Add/extend DT support
   - max77620 power-off
   - syscon clocking
   - croc_ec host sleep event

  Fix-ups:
   - Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs
   - Remove unused functionality; rk808, da9063-*
   - SPDX conversion; da9063-*, atmel-*,
   - Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr
   - Fix-up DT bindings; ti-lmu, cirrus,lochnagar
   - Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb

  Bug Fixes:
   - Fix incorrect defined values; max77620, da9063
   - Fix device initialisation; twl6040
   - Reset device on init; intel-lpss
   - Fix build warnings when !OF; sun6i-prcm
   - Register OF match tables; tps65912-spi
   - Fix DMI matching; intel_quark_i2c_gpio"

* tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (65 commits)
  mfd: Use dev_get_drvdata() directly
  mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device
  mfd: cros_ec: Instantiate properly CrOS FP MCU device
  mfd: cros_ec: Update the EC feature codes
  mfd: intel-lpss: Add Intel Comet Lake PCI IDs
  mfd: lochnagar: Add links to binding docs for sound and hwmon
  mfd: ab8500-debugfs: Fix a typo ("deubgfs")
  mfd: imx6sx: Add MQS register definition for iomuxc gpr
  dt-bindings: mfd: LMU: Fix lm3632 dt binding example
  mfd: intel_quark_i2c_gpio: Adjust IOT2000 matching
  mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L
  mfd: tps65912-spi: Add missing of table registration
  mfd: axp20x: Add USB power supply mfd cell to AXP803
  mfd: sun6i-prcm: Fix build warning for non-OF configurations
  mfd: intel-lpss: Set the device in reset state when init
  platform/chrome: Add support for v1 of host sleep event
  mfd: cros_ec: Add host_sleep_event_v1 command
  mfd: cros_ec: Instantiate the CrOS USB PD logger driver
  mfd: cs47l90: Make DAC_AEC_CONTROL_2 readable
  mfd: cs47l35: Make DAC_AEC_CONTROL_2 readable
  ...
2019-05-14 10:39:08 -07:00
Linus Torvalds 414147d99b pci-v5.2-changes
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Merge tag 'pci-v5.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration changes:

   - Add _HPX Type 3 settings support, which gives firmware more
     influence over device configuration (Alexandru Gagniuc)

   - Support fixed bus numbers from bridge Enhanced Allocation
     capabilities (Subbaraya Sundeep)

   - Add "external-facing" DT property to identify cases where we
     require IOMMU protection against untrusted devices (Jean-Philippe
     Brucker)

   - Enable PCIe services for host controller drivers that use managed
     host bridge alloc (Jean-Philippe Brucker)

   - Log PCIe port service messages with pci_dev, not the pcie_device
     (Frederick Lawler)

   - Convert pciehp from pciehp_debug module parameter to generic
     dynamic debug (Frederick Lawler)

  Peer-to-peer DMA:

   - Add whitelist of Root Complexes that support peer-to-peer DMA
     between Root Ports (Christian König)

  Native controller drivers:

   - Add PCI host bridge DMA ranges for bridges that can't DMA
     everywhere, e.g., iProc (Srinath Mannam)

   - Add Amazon Annapurna Labs PCIe host controller driver (Jonathan
     Chocron)

   - Fix Tegra MSI target allocation so DMA doesn't generate unwanted
     MSIs (Vidya Sagar)

   - Fix of_node reference leaks (Wen Yang)

   - Fix Hyper-V module unload & device removal issues (Dexuan Cui)

   - Cleanup R-Car driver (Marek Vasut)

   - Cleanup Keystone driver (Kishon Vijay Abraham I)

   - Cleanup i.MX6 driver (Andrey Smirnov)

  Significant bug fixes:

   - Reset Lenovo ThinkPad P50 GPU so nouveau works after reboot (Lyude
     Paul)

   - Fix Switchtec firmware update performance issue (Wesley Sheng)

   - Work around Pericom switch link retraining erratum (Stefan Mätje)"

* tag 'pci-v5.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (141 commits)
  MAINTAINERS: Add Karthikeyan Mitran and Hou Zhiqiang for Mobiveil PCI
  PCI: pciehp: Remove pointless MY_NAME definition
  PCI: pciehp: Remove pointless PCIE_MODULE_NAME definition
  PCI: pciehp: Remove unused dbg/err/info/warn() wrappers
  PCI: pciehp: Log messages with pci_dev, not pcie_device
  PCI: pciehp: Replace pciehp_debug module param with dyndbg
  PCI: pciehp: Remove pciehp_debug uses
  PCI/AER: Log messages with pci_dev, not pcie_device
  PCI/DPC: Log messages with pci_dev, not pcie_device
  PCI/PME: Replace dev_printk(KERN_DEBUG) with dev_info()
  PCI/AER: Replace dev_printk(KERN_DEBUG) with dev_info()
  PCI: Replace dev_printk(KERN_DEBUG) with dev_info(), etc
  PCI: Replace printk(KERN_INFO) with pr_info(), etc
  PCI: Use dev_printk() when possible
  PCI: Cleanup setup-bus.c comments and whitespace
  PCI: imx6: Allow asynchronous probing
  PCI: dwc: Save root bus for driver remove hooks
  PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify code
  PCI: dwc: Free MSI in dw_pcie_host_init() error path
  PCI: dwc: Free MSI IRQ page in dw_pcie_free_msi()
  ...
2019-05-14 10:30:10 -07:00
Linus Torvalds 318222a35b Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:

 - a few misc things and hotfixes

 - ocfs2

 - almost all of MM

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (139 commits)
  kernel/memremap.c: remove the unused device_private_entry_fault() export
  mm: delete find_get_entries_tag
  mm/huge_memory.c: make __thp_get_unmapped_area static
  mm/mprotect.c: fix compilation warning because of unused 'mm' variable
  mm/page-writeback: introduce tracepoint for wait_on_page_writeback()
  mm/vmscan: simplify trace_reclaim_flags and trace_shrink_flags
  mm/Kconfig: update "Memory Model" help text
  mm/vmscan.c: don't disable irq again when count pgrefill for memcg
  mm: memblock: make keeping memblock memory opt-in rather than opt-out
  hugetlbfs: always use address space in inode for resv_map pointer
  mm/z3fold.c: support page migration
  mm/z3fold.c: add structure for buddy handles
  mm/z3fold.c: improve compression by extending search
  mm/z3fold.c: introduce helper functions
  mm/page_alloc.c: remove unnecessary parameter in rmqueue_pcplist
  mm/hmm: add ARCH_HAS_HMM_MIRROR ARCH_HAS_HMM_DEVICE Kconfig
  mm/vmscan.c: simplify shrink_inactive_list()
  fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback
  xen/privcmd-buf.c: convert to use vm_map_pages_zero()
  xen/gntdev.c: convert to use vm_map_pages()
  ...
2019-05-14 10:10:55 -07:00
Jérôme Glisse 023a019a9b mm/hmm: add default fault flags to avoid the need to pre-fill pfns arrays
The HMM mirror API can be use in two fashions.  The first one where the
HMM user coalesce multiple page faults into one request and set flags per
pfns for of those faults.  The second one where the HMM user want to
pre-fault a range with specific flags.  For the latter one it is a waste
to have the user pre-fill the pfn arrays with a default flags value.

This patch adds a default flags value allowing user to set them for a
range without having to pre-fill the pfn array.

Link: http://lkml.kernel.org/r/20190403193318.16478-8-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:48 -07:00
Jérôme Glisse a3e0d41c2b mm/hmm: improve driver API to work and wait over a range
A common use case for HMM mirror is user trying to mirror a range and
before they could program the hardware it get invalidated by some core mm
event.  Instead of having user re-try right away to mirror the range
provide a completion mechanism for them to wait for any active
invalidation affecting the range.

This also changes how hmm_range_snapshot() and hmm_range_fault() works by
not relying on vma so that we can drop the mmap_sem when waiting and
lookup the vma again on retry.

Link: http://lkml.kernel.org/r/20190403193318.16478-7-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:48 -07:00
Jérôme Glisse 73231612dc mm/hmm: improve and rename hmm_vma_fault() to hmm_range_fault()
Minor optimization around hmm_pte_need_fault().  Rename for consistency
between code, comments and documentation.  Also improves the comments on
all the possible returns values.  Improve the function by returning the
number of populated entries in pfns array.

Link: http://lkml.kernel.org/r/20190403193318.16478-6-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:48 -07:00
Jérôme Glisse 25f23a0c71 mm/hmm: improve and rename hmm_vma_get_pfns() to hmm_range_snapshot()
Rename for consistency between code, comments and documentation.  Also
improves the comments on all the possible returns values.  Improve the
function by returning the number of populated entries in pfns array.

Link: http://lkml.kernel.org/r/20190403193318.16478-5-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:48 -07:00
Kirill Tkhai 886cf1901d mm: move recent_rotated pages calculation to shrink_inactive_list()
Patch series "mm: Generalize putback functions"]

putback_inactive_pages() and move_active_pages_to_lru() are almost
similar, so this patchset merges them ina single function.

This patch (of 4):

The patch moves the calculation from putback_inactive_pages() to
shrink_inactive_list().  This makes putback_inactive_pages() looking more
similar to move_active_pages_to_lru().

To do that, we account activated pages in reclaim_stat::nr_activate.
Since a page may change its LRU type from anon to file cache inside
shrink_page_list() (see ClearPageSwapBacked()), we have to account pages
for the both types.  So, nr_activate becomes an array.

Previously we used nr_activate to account PGACTIVATE events, but now we
account them into pgactivate variable (since they are about number of
pages in general, not about sum of hpage_nr_pages).

Link: http://lkml.kernel.org/r/155290127956.31489.3393586616054413298.stgit@localhost.localdomain
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:45 -07:00
Peter Xu cefdca0a86 userfaultfd/sysctl: add vm.unprivileged_userfaultfd
Userfaultfd can be misued to make it easier to exploit existing
use-after-free (and similar) bugs that might otherwise only make a
short window or race condition available.  By using userfaultfd to
stall a kernel thread, a malicious program can keep some state that it
wrote, stable for an extended period, which it can then access using an
existing exploit.  While it doesn't cause the exploit itself, and while
it's not the only thing that can stall a kernel thread when accessing a
memory location, it's one of the few that never needs privilege.

We can add a flag, allowing userfaultfd to be restricted, so that in
general it won't be useable by arbitrary user programs, but in
environments that require userfaultfd it can be turned back on.

Add a global sysctl knob "vm.unprivileged_userfaultfd" to control
whether userfaultfd is allowed by unprivileged users.  When this is
set to zero, only privileged users (root user, or users with the
CAP_SYS_PTRACE capability) will be able to use the userfaultfd
syscalls.

Andrea said:

: The only difference between the bpf sysctl and the userfaultfd sysctl
: this way is that the bpf sysctl adds the CAP_SYS_ADMIN capability
: requirement, while userfaultfd adds the CAP_SYS_PTRACE requirement,
: because the userfaultfd monitor is more likely to need CAP_SYS_PTRACE
: already if it's doing other kind of tracking on processes runtime, in
: addition of userfaultfd.  In other words both syscalls works only for
: root, when the two sysctl are opt-in set to 1.

[dgilbert@redhat.com: changelog additions]
[akpm@linux-foundation.org: documentation tweak, per Mike]
Link: http://lkml.kernel.org/r/20190319030722.12441-2-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Suggested-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 09:47:45 -07:00
Linus Torvalds fa4bff1650 Merge branch 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MDS mitigations from Thomas Gleixner:
 "Microarchitectural Data Sampling (MDS) is a hardware vulnerability
  which allows unprivileged speculative access to data which is
  available in various CPU internal buffers. This new set of misfeatures
  has the following CVEs assigned:

     CVE-2018-12126  MSBDS  Microarchitectural Store Buffer Data Sampling
     CVE-2018-12130  MFBDS  Microarchitectural Fill Buffer Data Sampling
     CVE-2018-12127  MLPDS  Microarchitectural Load Port Data Sampling
     CVE-2019-11091  MDSUM  Microarchitectural Data Sampling Uncacheable Memory

  MDS attacks target microarchitectural buffers which speculatively
  forward data under certain conditions. Disclosure gadgets can expose
  this data via cache side channels.

  Contrary to other speculation based vulnerabilities the MDS
  vulnerability does not allow the attacker to control the memory target
  address. As a consequence the attacks are purely sampling based, but
  as demonstrated with the TLBleed attack samples can be postprocessed
  successfully.

  The mitigation is to flush the microarchitectural buffers on return to
  user space and before entering a VM. It's bolted on the VERW
  instruction and requires a microcode update. As some of the attacks
  exploit data structures shared between hyperthreads, full protection
  requires to disable hyperthreading. The kernel does not do that by
  default to avoid breaking unattended updates.

  The mitigation set comes with documentation for administrators and a
  deeper technical view"

* 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86/speculation/mds: Fix documentation typo
  Documentation: Correct the possible MDS sysfs values
  x86/mds: Add MDSUM variant to the MDS documentation
  x86/speculation/mds: Add 'mitigations=' support for MDS
  x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
  x86/speculation/mds: Fix comment
  x86/speculation/mds: Add SMT warning message
  x86/speculation: Move arch_smt_update() call to after mitigation decisions
  x86/speculation/mds: Add mds=full,nosmt cmdline option
  Documentation: Add MDS vulnerability documentation
  Documentation: Move L1TF to separate directory
  x86/speculation/mds: Add mitigation mode VMWERV
  x86/speculation/mds: Add sysfs reporting for MDS
  x86/speculation/mds: Add mitigation control for MDS
  x86/speculation/mds: Conditionally clear CPU buffers on idle entry
  x86/kvm/vmx: Add MDS protection when L1D Flush is not active
  x86/speculation/mds: Clear CPU buffers on exit to user
  x86/speculation/mds: Add mds_clear_cpu_buffers()
  x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
  x86/speculation/mds: Add BUG_MSBDS_ONLY
  ...
2019-05-14 07:57:29 -07:00
Elaine Zhang 4b984e7bfb dt-bindings: rockchip-thermal: Support the PX30 SoC compatible
Add a new compatible for thermal founding on PX30 SoCs.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:39 -07:00
Jean-Francois Dagenais 80d95930dc dt-bindings: thermal: generic-adc: make lookup-table optional
Update binding description making lookup-table optional.

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:29 -07:00
Talel Shenhar c8044b918b dt-bindings: thermal: al-thermal: Add binding documentation
Add thermal binding documentation for Amazon's Annapurna Labs Thermal
Sensor.

Signed-off-by: Talel Shenhar <talel@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:25 -07:00
Amit Kucheria a9604f2808 dt: thermal: tsens: Add bindings for qcs404
qcs404 uses v1 of the TSENS IP block. Create a fallback DT property
"qcom,tsens-v1" to gather common code

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:23 -07:00
Gary Lin 948dc8c99a bpf: btf: fix the brackets of BTF_INT_OFFSET()
'VAL' should be protected by the brackets.

v2:
* Squash the fix for Documentation/bpf/btf.rst

Fixes: 69b693f0ae ("bpf: btf: Introduce BPF Type Format (BTF)")
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-14 10:05:18 +02:00
Brian Masney 32fcb75c66 dt-bindings: backlight: Add lm3630a bindings
Add new backlight bindings for the TI LM3630A dual-string white LED.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-14 08:16:01 +01:00
Charles Keepax c273e63129 mfd: lochnagar: Add links to binding docs for sound and hwmon
Lochnagar is an evaluation and development board for Cirrus
Logic Smart CODEC and Amp devices. It allows the connection of
most Cirrus Logic devices on mini-cards, as well as allowing
connection of various application processor systems to provide a
full evaluation platform. This driver supports the board
controller chip on the Lochnagar board.

Add links to the binding documents for the new sound and hardware
monitor parts of the driver.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-14 08:13:27 +01:00
Dan Murphy a2a0c4ef4e dt-bindings: mfd: LMU: Fix lm3632 dt binding example
Fix the lm3632 dt binding examples as the LCM enable GPIOs
are defined as enable GPIOs per the regulator/lm363x-regulator.txt
bindings document.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-14 08:13:27 +01:00
Claudiu Beznea 730080a758 dt-bindings: mfd: Add bindings for SAM9X60 HLCD controller
Add new compatible string for the HLCD controller on SAM9X60 SoC.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-14 08:13:26 +01:00
Fabrice Gasnier c6ba08819b dt-bindings: stm32: syscon: Add clock support
STM32 system configuration controller registers needs to be clocked.
Document clock support on stm32-syscon.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-14 08:13:25 +01:00
Lee Jones 60a7a9a249 Immutable branch between MFD, ARM and Net due for the 5.2 merge window
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Merge branches 'ib-mfd-arm-leds-5.2', 'ib-mfd-gpio-input-leds-power-5.2', 'ib-mfd-pinctrl-5.2-2' and 'ib-mfd-regulator-5.2', tag 'ib-mfd-arm-net-5.2' into ibs-for-mfd-merged

Immutable branch between MFD, ARM and Net due for the 5.2 merge window
2019-05-14 08:09:23 +01:00
Wei Ni 8d3d462b68 of: Add bindings of OC hw throttle for Tegra soctherm
Add OC HW throttle configuration for soctherm in DT.
It is used to describe the OCx throttle events.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:34 -07:00
Wei Ni 7d8ac6b282 of: Add bindings of gpu hw throttle for Tegra soctherm
Add "nvidia,gpu-throt-level" property to set gpu hw
throttle level.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:33 -07:00
Wei Ni 9967a1bc81 of: Add bindings of thermtrip for Tegra soctherm
Add optional property "nvidia,thermtrips".
If present, these trips will be used as HW shutdown trips,
and critical trips will be used as SW shutdown trips.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:32 -07:00
Bjorn Helgaas 0b8439d374 Merge branch 'remotes/lorenzo/pci/keystone'
- Move IRQ register address computation inside macros (Kishon Vijay
    Abraham I)

  - Separate legacy IRQ and MSI configuration (Kishon Vijay Abraham I)

  - Use hwirq, not virq, to get MSI IRQ number offset (Kishon Vijay Abraham
    I)

  - Squash ks_pcie_handle_msi_irq() into ks_pcie_msi_irq_handler() (Kishon
    Vijay Abraham I)

  - Add dwc support for platforms with custom MSI controllers (Kishon Vijay
    Abraham I)

  - Add keystone-specific MSI controller (Kishon Vijay Abraham I)

  - Remove dwc host_ops previously used for keystone-specific MSI (Kishon
    Vijay Abraham I)

  - Skip dwc default MSI init if platform has custom MSI controller (Kishon
    Vijay Abraham I)

  - Implement .start_link() and .stop_link() for keystone endpoint support
    (Kishon Vijay Abraham I)

  - Add keystone "reg-names" DT binding (Kishon Vijay Abraham I)

  - Squash ks_pcie_dw_host_init() into ks_pcie_add_pcie_port() (Kishon
    Vijay Abraham I)

  - Get keystone register resources from DT by name, not index (Kishon
    Vijay Abraham I)

  - Get DT resources in .probe() to prepare for endpoint support (Kishon
    Vijay Abraham I)

  - Add "ti,syscon-pcie-mode" DT property for PCIe mode configuration
    (Kishon Vijay Abraham I)

  - Explicitly set keystone to host mode (Kishon Vijay Abraham I)

  - Document DT "atu" reg-names requirement for DesignWare core >= 4.80
    (Kishon Vijay Abraham I)

  - Enable dwc iATU unroll for endpoint mode as well as host mode (Kishon
    Vijay Abraham I)

  - Add dwc "version" to identify core >= 4.80 for ATU programming (Kishon
    Vijay Abraham I)

  - Don't build ARM32-specific keystone code on ARM64 (Kishon Vijay Abraham
    I)

  - Add DT binding for keystone PCIe RC in AM654 SoC (Kishon Vijay Abraham
    I)

  - Add keystone support for AM654 SoC PCIe RC (Kishon Vijay Abraham I)

  - Reset keystone PHYs before enabling them (Kishon Vijay Abraham I)

  - Make of_pci_get_max_link_speed() available to endpoint drivers as well
    as host drivers (Kishon Vijay Abraham I)

  - Add keystone support for DT "max-link-speed" property (Kishon Vijay
    Abraham I)

  - Add endpoint library support for BAR buffer alignment (Kishon Vijay
    Abraham I)

  - Make all dw_pcie_ep_ops structs const (Kishon Vijay Abraham I)

  - Fix fencepost error in dw_pcie_ep_find_capability() (Kishon Vijay
    Abraham I)

  - Add dwc hooks for dbi/dbi2 that share the same address space (Kishon
    Vijay Abraham I)

  - Add keystone support for TI AM654x in endpoint mode (Kishon Vijay
    Abraham I)

  - Configure designware endpoints to advertise smallest resizable BAR
    (1MB) (Kishon Vijay Abraham I)

  - Align designware endpoint ATU windows for raising MSIs (Kishon Vijay
    Abraham I)

  - Add endpoint test support for TI AM654x (Kishon Vijay Abraham I)

  - Fix endpoint test test_reg_bar issue (Kishon Vijay Abraham I)

* remotes/lorenzo/pci/keystone:
  misc: pci_endpoint_test: Fix test_reg_bar to be updated in pci_endpoint_test
  misc: pci_endpoint_test: Add support to test PCI EP in AM654x
  PCI: designware-ep: Use aligned ATU window for raising MSI interrupts
  PCI: designware-ep: Configure Resizable BAR cap to advertise the smallest size
  PCI: keystone: Add support for PCIe EP in AM654x Platforms
  dt-bindings: PCI: Add PCI EP DT binding documentation for AM654
  PCI: dwc: Add callbacks for accessing dbi2 address space
  PCI: dwc: Fix dw_pcie_ep_find_capability() to return correct capability offset
  PCI: dwc: Add const qualifier to struct dw_pcie_ep_ops
  PCI: endpoint: Add support to specify alignment for buffers allocated to BARs
  PCI: keystone: Add support to set the max link speed from DT
  PCI: OF: Allow of_pci_get_max_link_speed() to be used by PCI Endpoint drivers
  PCI: keystone: Invoke phy_reset() API before enabling PHY
  PCI: keystone: Add support for PCIe RC in AM654x Platforms
  dt-bindings: PCI: Add PCI RC DT binding documentation for AM654
  PCI: keystone: Prevent ARM32 specific code to be compiled for ARM64
  PCI: dwc: Fix ATU identification for designware version >= 4.80
  PCI: dwc: Enable iATU unroll for endpoint too
  dt-bindings: PCI: Document "atu" reg-names
  PCI: keystone: Explicitly set the PCIe mode
  dt-bindings: PCI: Add dt-binding to configure PCIe mode
  PCI: keystone: Move resources initialization to prepare for EP support
  PCI: keystone: Use platform_get_resource_byname() to get memory resources
  PCI: keystone: Perform host initialization in a single function
  dt-bindings: PCI: keystone: Add "reg-names" binding information
  PCI: keystone: Cleanup error_irq configuration
  PCI: keystone: Add start_link()/stop_link() dw_pcie_ops
  PCI: dwc: Remove default MSI initialization for platform specific MSI chips
  PCI: dwc: Remove Keystone specific dw_pcie_host_ops
  PCI: keystone: Use Keystone specific msi_irq_chip
  PCI: dwc: Add support to use non default msi_irq_chip
  PCI: keystone: Cleanup ks_pcie_msi_irq_handler()
  PCI: keystone: Use hwirq to get the MSI IRQ number offset
  PCI: keystone: Add separate functions for configuring MSI and legacy interrupt
  PCI: keystone: Cleanup interrupt related macros

# Conflicts:
#	drivers/pci/controller/dwc/pcie-designware.h
2019-05-13 18:34:41 -05:00
Linus Torvalds 0aed4b2818 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "A few new drivers:

   - driver for Azoteq IQS550/572/525 touch controllers

   - driver for Microchip AT42QT1050 keys

   - driver for GPIO controllable vibrators

   - support for GT5663 in Goodix driver

  ... along with miscellaneous driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: libps2 - mark expected switch fall-through
  Input: qt1050 - add Microchip AT42QT1050 support
  Input: add support for Azoteq IQS550/572/525
  Input: add a driver for GPIO controllable vibrators
  Input: synaptics-rmi4 - fix enum_fmt
  Input: synaptics-rmi4 - fill initial format
  HID: input: add mapping for KEY_KBD_LAYOUT_NEXT
  Input: add KEY_KBD_LAYOUT_NEXT
  Input: hyperv-keyboard - add module description
  Input: olpc_apsp - depend on ARCH_MMP
  Input: sun4i-a10-lradc-keys - add support for A83T
  Input: snvs_pwrkey - use dev_pm_set_wake_irq() to simplify code
  Input: lpc32xx-key - add clocks property and fix DT binding example
  Input: i8042 - signal wakeup from atkbd/psmouse
  Input: goodix - add GT5663 CTP support
  Input: goodix - add regulators suppot
  Input: evdev - use struct_size() in kzalloc() and vzalloc()
  Input: edt-ft5x06 - convert to use SPDX identifier
  Input: edt-ft5x06 - enable ACPI enumeration
2019-05-13 15:21:48 -07:00