Commit Graph

52611 Commits

Author SHA1 Message Date
Linus Torvalds
2382dc9a3e dma mapping changes for Linux 4.16:
This pull requests contains a consolidation of the generic no-IOMMU code,
 a well as the glue code for swiotlb.  All the code is based on the x86
 implementation with hooks to allow all architectures that aren't cache
 coherent to use it.  The x86 conversion itself has been deferred because
 the x86 maintainers were a little busy in the last months.
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCAApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlpxcVoLHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYN/Lw/+Je9teM4NPQ8lU/ncbJN/bUzCFGJ6dFt2eVX/6xs3
 sfl8vBdeHt6CBM02rRNecEr31z3+orjQes5JnlEJFYeG3jumV0zCPw/zbxqjzbJ1
 3n6cckLxbxzy8Ca1G/BVjHLAUX5eWp1ujn/Q4d03VKVQZhJvFYlqDbP3TrNVx7xn
 k86u37p/o+ngjwX66UdZ3C4iIBF8zqy6n2kkpv4HUQtHHzPwEvliN39eNilovb56
 iGOzjDX1UWHAu4xCTVnPHSG4fA4XU41NWzIN3DIVPE25lYSISSl9TFAdR8GeZA0G
 0Yj6sW53pRSoUwco1ocoS44/FgrPOB5/vHIL06pABvicXBiomje1QylqcK7zAczk
 esjkfPEZrmZuu99GtqFyDNKEvKKdy+aBGaTZ3y+NxsuBs+0xS2Owz1IE4Tk28xaw
 xh7zn+CVdk2fJh6ZIdw5Eu9b9VN08UriqDmDzO/ylDlcNGcDi7wcxiSTEkHJ1ON/
 g9nletV6f3egL0wljDcOnhCJCHTvmWEeq3z8lE55QzPzSH0hHpnGQ2WD0tKrroxz
 kjOZp0TdXa4F5iysOHe2xl2sftOH0zIkBQJ+oBcK12mTaLu21+yeuCggQXJ/CBdk
 1Ol7l9g9T0TDuZPfiTHt5+6jmECQs92LElWA8x7uF7Fpix3BpnafWaaSMSsosF3F
 D1Y=
 =Nrl9
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping

Pull dma mapping updates from Christoph Hellwig:
 "Except for a runtime warning fix from Christian this is all about
  consolidation of the generic no-IOMMU code, a well as the glue code
  for swiotlb.

  All the code is based on the x86 implementation with hooks to allow
  all architectures that aren't cache coherent to use it.

  The x86 conversion itself has been deferred because the x86
  maintainers were a little busy in the last months"

* tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping: (57 commits)
  MAINTAINERS: add the iommu list for swiotlb and xen-swiotlb
  arm64: use swiotlb_alloc and swiotlb_free
  arm64: replace ZONE_DMA with ZONE_DMA32
  mips: use swiotlb_{alloc,free}
  mips/netlogic: remove swiotlb support
  tile: use generic swiotlb_ops
  tile: replace ZONE_DMA with ZONE_DMA32
  unicore32: use generic swiotlb_ops
  ia64: remove an ifdef around the content of pci-dma.c
  ia64: clean up swiotlb support
  ia64: use generic swiotlb_ops
  ia64: replace ZONE_DMA with ZONE_DMA32
  swiotlb: remove various exports
  swiotlb: refactor coherent buffer allocation
  swiotlb: refactor coherent buffer freeing
  swiotlb: wire up ->dma_supported in swiotlb_dma_ops
  swiotlb: add common swiotlb_map_ops
  swiotlb: rename swiotlb_free to swiotlb_exit
  x86: rename swiotlb_dma_ops
  powerpc: rename swiotlb_dma_ops
  ...
2018-01-31 11:32:27 -08:00
Bjorn Helgaas
414ae7609e Merge branch 'pci/resource' into next
* pci/resource:
  PCI: tegra: Remove PCI_REASSIGN_ALL_BUS use on Tegra
  resource: Set type when reserving new regions
  resource: Set type of "reserve=" user-specified resources
  irqchip/i8259: Set I/O port resource types correctly
  powerpc: Set I/O port resource types correctly
  MIPS: Set I/O port resource types correctly
  vgacon: Set VGA struct resource types
  PCI: Use dev_info() rather than dev_err() for ROM validation
  PCI: Remove PCI_REASSIGN_ALL_RSRC use on arm and arm64
  PCI: Remove sysfs resource mmap warning

Conflicts:
	drivers/pci/rom.c
2018-01-31 10:12:56 -06:00
Linus Torvalds
d4173023e6 Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull siginfo cleanups from Eric Biederman:
 "Long ago when 2.4 was just a testing release copy_siginfo_to_user was
  made to copy individual fields to userspace, possibly for efficiency
  and to ensure initialized values were not copied to userspace.

  Unfortunately the design was complex, it's assumptions unstated, and
  humans are fallible and so while it worked much of the time that
  design failed to ensure unitialized memory is not copied to userspace.

  This set of changes is part of a new design to clean up siginfo and
  simplify things, and hopefully make the siginfo handling robust enough
  that a simple inspection of the code can be made to ensure we don't
  copy any unitializied fields to userspace.

  The design is to unify struct siginfo and struct compat_siginfo into a
  single definition that is shared between all architectures so that
  anyone adding to the set of information shared with struct siginfo can
  see the whole picture. Hopefully ensuring all future si_code
  assignments are arch independent.

  The design is to unify copy_siginfo_to_user32 and
  copy_siginfo_from_user32 so that those function are complete and cope
  with all of the different cases documented in signinfo_layout. I don't
  think there was a single implementation of either of those functions
  that was complete and correct before my changes unified them.

  The design is to introduce a series of helpers including
  force_siginfo_fault that take the values that are needed in struct
  siginfo and build the siginfo structure for their callers. Ensuring
  struct siginfo is built correctly.

  The remaining work for 4.17 (unless someone thinks it is post -rc1
  material) is to push usage of those helpers down into the
  architectures so that architecture specific code will not need to deal
  with the fiddly work of intializing struct siginfo, and then when
  struct siginfo is guaranteed to be fully initialized change copy
  siginfo_to_user into a simple wrapper around copy_to_user.

  Further there is work in progress on the issues that have been
  documented requires arch specific knowledge to sort out.

  The changes below fix or at least document all of the issues that have
  been found with siginfo generation. Then proceed to unify struct
  siginfo the 32 bit helpers that copy siginfo to and from userspace,
  and generally clean up anything that is not arch specific with regards
  to siginfo generation.

  It is a lot but with the unification you can of siginfo you can
  already see the code reduction in the kernel"

* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (45 commits)
  signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr
  mm/memory_failure: Remove unused trapno from memory_failure
  signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed
  signal/powerpc: Remove unnecessary signal_code parameter of do_send_trap
  signal: Helpers for faults with specialized siginfo layouts
  signal: Add send_sig_fault and force_sig_fault
  signal: Replace memset(info,...) with clear_siginfo for clarity
  signal: Don't use structure initializers for struct siginfo
  signal/arm64: Better isolate the COMPAT_TASK portion of ptrace_hbptriggered
  ptrace: Use copy_siginfo in setsiginfo and getsiginfo
  signal: Unify and correct copy_siginfo_to_user32
  signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32
  signal: Unify and correct copy_siginfo_from_user32
  signal/blackfin: Remove pointless UID16_SIGINFO_COMPAT_NEEDED
  signal/blackfin: Move the blackfin specific si_codes to asm-generic/siginfo.h
  signal/tile: Move the tile specific si_codes to asm-generic/siginfo.h
  signal/frv: Move the frv specific si_codes to asm-generic/siginfo.h
  signal/ia64: Move the ia64 specific si_codes to asm-generic/siginfo.h
  signal/powerpc: Remove redefinition of NSIGTRAP on powerpc
  signal: Move addr_lsb into the _sigfault union for clarity
  ...
2018-01-30 14:18:52 -08:00
Linus Torvalds
0aebc6a440 arm64 updates for 4.16:
- Security mitigations:
   - variant 2: invalidating the branch predictor with a call to secure firmware
   - variant 3: implementing KPTI for arm64
 
 - 52-bit physical address support for arm64 (ARMv8.2)
 
 - arm64 support for RAS (firmware first only) and SDEI (software
   delegated exception interface; allows firmware to inject a RAS error
   into the OS)
 
 - Perf support for the ARM DynamIQ Shared Unit PMU
 
 - CPUID and HWCAP bits updated for new floating point multiplication
   instructions in ARMv8.4
 
 - Removing some virtual memory layout printks during boot
 
 - Fix initial page table creation to cope with larger than 32M kernel
   images when 16K pages are enabled
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAlpwxDMACgkQa9axLQDI
 XvF55BAAniMpxPXnYNfv6l7/4O8eKo1lJIaG1wbej4JRZ/rT3K4Z3OBXW1dKHO8d
 /PTbVmZ90IqIGROkoDrE+6xyjjn9yK3uuW4ytN2zQkBa8VFaHAnHlX+zKQcuwy9f
 yxwiHk+C7vK5JR7mpXTazjRknsUv1MPtlTt7DQrSdq0KRDJVDNFC+grmbew2rz0X
 cjQDqZqgzuFyrKxdiQVjDmc3zH9NsNBhDo0hlGHf2jK6bGJsAPtI8M2JcLrK8ITG
 Ye/dD7BJp1mWD8ff0BPaMxu24qfAMNLH8f2dpTa986/H78irVz7i/t5HG0/1+5Jh
 EE4OFRTKZ59Qgyo1zWcaJvdp8YjiaX/L4PWJg8CxM5OhP9dIac9ydcFQfWzpKpUs
 xyZfmK6XliGFReAkVOOf5tEqFUDhMtsqhzPYmbmU1lp61wmSYIZ8CTenpWWCJSRO
 NOGyG1X2uFBvP69+iPNlfTGz1r7tg1URY5iO8fUEIhY8LrgyORkiqw4OvPEgnMXP
 Ngy+dXhyvnps2AAWbSX0O4puRlTgEYLT5KaMLzH/+gWsXATT0rzUCD/aOwUQq/Y7
 SWXZHkb3jpmOZZnzZsLL2MNzEIPCFBwSUE9fSv4dA9d/N6tUmlmZALJjHkfzCDpj
 +mPsSmAMTj72kUYzm0b5GCtOu/iQ2kDWOZjOM1m4+v/B+f7JoEE=
 =iEjP
 -----END PGP SIGNATURE-----

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "The main theme of this pull request is security covering variants 2
  and 3 for arm64. I expect to send additional patches next week
  covering an improved firmware interface (requires firmware changes)
  for variant 2 and way for KPTI to be disabled on unaffected CPUs
  (Cavium's ThunderX doesn't work properly with KPTI enabled because of
  a hardware erratum).

  Summary:

   - Security mitigations:
      - variant 2: invalidate the branch predictor with a call to
        secure firmware
      - variant 3: implement KPTI for arm64

   - 52-bit physical address support for arm64 (ARMv8.2)

   - arm64 support for RAS (firmware first only) and SDEI (software
     delegated exception interface; allows firmware to inject a RAS
     error into the OS)

   - perf support for the ARM DynamIQ Shared Unit PMU

   - CPUID and HWCAP bits updated for new floating point multiplication
     instructions in ARMv8.4

   - remove some virtual memory layout printks during boot

   - fix initial page table creation to cope with larger than 32M kernel
     images when 16K pages are enabled"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (104 commits)
  arm64: Fix TTBR + PAN + 52-bit PA logic in cpu_do_switch_mm
  arm64: Turn on KPTI only on CPUs that need it
  arm64: Branch predictor hardening for Cavium ThunderX2
  arm64: Run enable method for errata work arounds on late CPUs
  arm64: Move BP hardening to check_and_switch_context
  arm64: mm: ignore memory above supported physical address size
  arm64: kpti: Fix the interaction between ASID switching and software PAN
  KVM: arm64: Emulate RAS error registers and set HCR_EL2's TERR & TEA
  KVM: arm64: Handle RAS SErrors from EL2 on guest exit
  KVM: arm64: Handle RAS SErrors from EL1 on guest exit
  KVM: arm64: Save ESR_EL2 on guest SError
  KVM: arm64: Save/Restore guest DISR_EL1
  KVM: arm64: Set an impdef ESR for Virtual-SError using VSESR_EL2.
  KVM: arm/arm64: mask/unmask daif around VHE guests
  arm64: kernel: Prepare for a DISR user
  arm64: Unconditionally enable IESB on exception entry/return for firmware-first
  arm64: kernel: Survive corrected RAS errors notified by SError
  arm64: cpufeature: Detect CPU RAS Extentions
  arm64: sysreg: Move to use definitions for all the SCTLR bits
  arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early
  ...
2018-01-30 13:57:43 -08:00
Linus Torvalds
7bcd342594 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "A rather small set of irq updates this time:

   - removal of the old and now obsolete irq domain debugging code

   - the new Goldfish PIC driver

   - the usual pile of small fixes and updates"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG
  irq/work: Improve the flag definitions
  irqchip/gic-v3: Fix the driver probe() fail due to disabled GICC entry
  irqchip/irq-goldfish-pic: Add Goldfish PIC driver
  dt-bindings/goldfish-pic: Add device tree binding for Goldfish PIC driver
  irqchip/ompic: fix return value check in ompic_of_init()
  dt-bindings/bcm283x: Define polarity of per-cpu interrupts
  irqchip/irq-bcm2836: Add support for DT interrupt polarity
  dt-bindings/bcm2836-l1-intc: Add interrupt polarity support
2018-01-29 16:47:21 -08:00
Linus Torvalds
0fc7e74663 MTD changes:
Core changes:
   * Rework core functions to avoid duplicating generic checks in
     NAND/OneNAND sub-layers
   * Update the MAINTAINERS entry to reflect the fact that MTD
     maintainers now use a single git tree
 
   Driver changes:
   * CFI: use macros instead of inline functions to limit stack
     usage and make KASAN happy
 
 NAND changes:
   Core changes:
   * Fix NAND_CMD_NONE handling in nand_command[_lp]() hooks
   * Introduce the ->exec_op() infrastructure
   * Rework NAND buffers handling
   * Fix ECC requirements for K9F4G08U0D
   * Fix nand_do_read_oob() to return the number of bitflips
   * Mark K9F1G08U0E as not supporting subpage writes
 
   Driver changes:
   * MTK: Rework the driver to support new IP versions
   * OMAP OneNAND: Full rework to use new APIs (libgpio, dmaengine) and fix
     DT support
   * Marvell: Add a new driver to replace the pxa3xx one
 
 SPI NOR changes:
   Core changes:
   * Add support to new ISSI and Cypress/Spansion memory parts.
   * Fix support of Micron memories by checking error bits in the FSR.
   * Fix update of block-protection bits by reading back the SR.
   * Restore the internal state of the SPI flash memory when removing the
     device.
 
   Driver changes:
   * Maintenance for Freescale, Intel and Metiatek drivers.
   * Add support of the direct access mode for the Cadence QSPI controller.
 -----BEGIN PGP SIGNATURE-----
 
 iQJABAABCAAqBQJabumAIxxib3Jpcy5icmV6aWxsb25AZnJlZS1lbGVjdHJvbnMu
 Y29tAAoJEGXtNgF+CLcA0eAP/1s4u/Vs0RaDL2Jog0z+3fdx9HKYTK01hiQoe5Vf
 0ouGH0lR9usAmmJlXxxNpBHFvJxsofJoCNaciHAiydCMBpX6oAQMYMMcPs4Qo7C/
 vydLBDBmKZNyQ9dv6FbjP+3Y/5drIGF+VfxXZwhGA3lwP5CSVbB9ndI8+A5bScIV
 m2RMOA/lorbNHQahEkt7FHd92yQxBXlbhHBf5Foy2dGhO3rpTWzL/d1KPAkcfeli
 ehjfazkbuwFxGlYBFsrWxsnm0zqrqIWtdTE5/0i8iC1FfbxL5KjRnAFg8AsXIepn
 C2rCAxM/890mIFypT/8xhu+1u8+Bmb1r/pA9G+f3zpkiAHcUGC3eMO3IhX/jkcAd
 jCD/zeaSW8uHrBoJA6mGhO1tkBA97w15XCQC38UZkRMaJsY8Rv50ST4afA4in7mi
 bdRnpOOBYsBv9LvLm+FzQ0EgRQl642mFY8rae+gAjkF/zt8zGHSt6UNgtwMRxqZJ
 ns/TyhNm7roYV3cPpAgOWK//9XAGII9YZ6x9XmPNZLq62yf+zqJnfeuy7bXATRfG
 GGYk6wd+VdN+Ax2mqVKEJMCArjz0kLAHOtpIwv2/RxB1dlNMdugaDPUcqFteZbXh
 wlgORLXLqZ8jfy+ITFB5HMDs/NMyuRr815jdPGZafHIx8xOBQD32Izv7cpYctfWU
 f2NU
 =Mxo2
 -----END PGP SIGNATURE-----

Merge tag 'mtd/for-4.16' of git://git.infradead.org/linux-mtd

Pull MTD updates from Boris Brezillon:
 "MTD core changes:
   - Rework core functions to avoid duplicating generic checks in
     NAND/OneNAND sub-layers
   - Update the MAINTAINERS entry to reflect the fact that MTD
     maintainers now use a single git tree

  MTD driver changes:
   - CFI: use macros instead of inline functions to limit stack usage
     and make KASAN happy

  NAND core changes:
   - Fix NAND_CMD_NONE handling in nand_command[_lp]() hooks
   - Introduce the ->exec_op() infrastructure
   - Rework NAND buffers handling
   - Fix ECC requirements for K9F4G08U0D
   - Fix nand_do_read_oob() to return the number of bitflips
   - Mark K9F1G08U0E as not supporting subpage writes

  NAND driver changes:
   - MTK: Rework the driver to support new IP versions
   - OMAP OneNAND: Full rework to use new APIs (libgpio, dmaengine) and
     fix DT support
   - Marvell: Add a new driver to replace the pxa3xx one

  SPI NOR core changes:
   - Add support to new ISSI and Cypress/Spansion memory parts.
   - Fix support of Micron memories by checking error bits in the FSR.
   - Fix update of block-protection bits by reading back the SR.
   - Restore the internal state of the SPI flash memory when removing
     the device.

  SPI NOR driver changes:
   - Maintenance for Freescale, Intel and Metiatek drivers.
   - Add support of the direct access mode for the Cadence QSPI
     controller"

* tag 'mtd/for-4.16' of git://git.infradead.org/linux-mtd: (93 commits)
  mtd: nand: sunxi: Fix ECC strength choice
  mtd: nand: gpmi: Fix subpage reads
  mtd: nand: Fix build issues due to an anonymous union
  mtd: nand: marvell: Fix missing memory allocation modifier
  mtd: nand: marvell: remove redundant variable 'oob_len'
  mtd: nand: marvell: fix spelling mistake: "suceed"-> "succeed"
  mtd: onenand: omap2: Remove redundant dev_err call in omap2_onenand_probe()
  mtd: Remove duplicate checks on mtd_oob_ops parameter
  mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing
  mtd: mtdpart: Make ECC stat handling consistent
  mtd: onenand: omap2: print resource using %pR format string
  mtd: mtk-nor: modify functions' name more generally
  mtd: onenand: samsung: remove incorrect __iomem annotation
  MAINTAINERS: Add entry for Marvell NAND controller driver
  ARM: OMAP2+: Remove gpmc-onenand
  mtd: onenand: omap2: Configure driver from DT
  mtd: onenand: omap2: Decouple DMA enabling from INT pin availability
  mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific
  mtd: onenand: omap2: Convert to use dmaengine for memcpy
  mtd: onenand: omap2: Unify OMAP2 and OMAP3 DMA implementation
  ...
2018-01-29 11:11:56 -08:00
Linus Torvalds
7f3fdd40a7 Power management updates for v4.16-rc1
- Define a PM driver flag allowing drivers to request that their
    devices be left in suspend after system-wide transitions to the
    working state if possible and add support for it to the PCI bus
    type and the ACPI PM domain (Rafael Wysocki).
 
  - Make the PM core carry out optimizations for devices with driver
    PM flags set in some cases and make a few drivers set those flags
    (Rafael Wysocki).
 
  - Fix and clean up wrapper routines allowing runtime PM device
    callbacks to be re-used for system-wide PM, change the generic
    power domains (genpd) framework to stop using those routines
    incorrectly and fix up a driver depending on that behavior of
    genpd (Rafael Wysocki, Ulf Hansson, Geert Uytterhoeven).
 
  - Fix and clean up the PM core's device wakeup framework and
    re-factor system-wide PM core code related to device wakeup
    (Rafael Wysocki, Ulf Hansson, Brian Norris).
 
  - Make more x86-based systems use the Low Power Sleep S0 _DSM
    interface by default (to fix power button wakeup from
    suspend-to-idle on Surface Pro3) and add a kernel command line
    switch to tell it to ignore the system sleep blacklist in the
    ACPI core (Rafael Wysocki).
 
  - Fix a race condition related to cpufreq governor module removal
    and clean up the governor management code in the cpufreq core
    (Rafael Wysocki).
 
  - Drop the unused generic code related to the handling of the static
    power energy usage model in the CPU cooling thermal driver along
    with the corresponding documentation (Viresh Kumar).
 
  - Add mt2712 support to the Mediatek cpufreq driver (Andrew-sh Cheng).
 
  - Add a new operating point to the imx6ul and imx6q cpufreq drivers
    and switch the latter to using clk_bulk_get() (Anson Huang, Dong
    Aisheng).
 
  - Add support for multiple regulators to the TI cpufreq driver along
    with a new DT binding related to that and clean up that driver
    somewhat (Dave Gerlach).
 
  - Fix a powernv cpufreq driver regression leading to incorrect CPU
    frequency reporting, fix that driver to deal with non-continguous
    P-states correctly and clean it up (Gautham Shenoy, Shilpasri Bhat).
 
  - Add support for frequency scaling on Armada 37xx SoCs through the
    generic DT cpufreq driver (Gregory CLEMENT).
 
  - Fix error code paths in the mvebu cpufreq driver (Gregory CLEMENT).
 
  - Fix a transition delay setting regression in the longhaul cpufreq
    driver (Viresh Kumar).
 
  - Add Skylake X (server) support to the intel_pstate cpufreq driver
    and clean up that driver somewhat (Srinivas Pandruvada).
 
  - Clean up the cpufreq statistics collection code (Viresh Kumar).
 
  - Drop cluster terminology and dependency on physical_package_id
    from the PSCI driver and drop dependency on arm_big_little from
    the SCPI cpufreq driver (Sudeep Holla).
 
  - Add support for system-wide suspend and resume to the RAPL power
    capping driver and drop a redundant semicolon from it (Zhen Han,
    Luis de Bethencourt).
 
  - Make SPI domain validation (in the SCSI SPI transport driver) and
    system-wide suspend mutually exclusive as they rely on the same
    underlying mechanism and cannot be carried out at the same time
    (Bart Van Assche).
 
  - Fix the computation of the amount of memory to preallocate in the
    hibernation core and clean up one function in there (Rainer Fiebig,
    Kyungsik Lee).
 
  - Prepare the Operating Performance Points (OPP) framework for being
    used with power domains and clean up one function in it (Viresh
    Kumar, Wei Yongjun).
 
  - Clean up the generic sysfs interface for device PM (Andy Shevchenko).
 
  - Fix several minor issues in power management frameworks and clean
    them up a bit (Arvind Yadav, Bjorn Andersson, Geert Uytterhoeven,
    Gustavo Silva, Julia Lawall, Luis de Bethencourt, Paul Gortmaker,
    Sergey Senozhatsky, gaurav jindal).
 
  - Make it easier to disable PM via Kconfig (Mark Brown).
 
  - Clean up the cpupower and intel_pstate_tracer utilities (Doug
    Smythies, Laura Abbott).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJaYw2iAAoJEILEb/54YlRxLHwP/iabmAcbXBeg30/wSCKcWB6f
 Ar785YbkFedNP7b2dypR7bcKIkaV55EExNHHoVuvC6gKrW+zx3F39v9QzK3HBKfw
 DgLWMjxR5Xdm9o8o2chsBEMl0itSRB9s864s+AAAElP+qjyT6kmbFyRFgVYLiNH0
 v9jNhPF9EmirViwES/syELa/P1AJDMxCb/SbRY+Xp1sPhGKlx2J/2eQsVDs7G+wL
 2BJeyBqwL9D78U/eY2bvpCoZLpmZmklx1eY5iK3Mzo6LZKYMaSypgkGuRfh//K+a
 8vFLwOBsOlpZ8lsPBRatV5+SMu8qMQMTnstui1m3/9bOPFfjymat6u0lLw4BV2hv
 zrNfqWOiwTAt/fczR1/naYuuSeRCLABvYDKjs/9iYdrCZYJ+n+ZzU/wi5geswDtD
 cQKDMOdOBrnfkN0Vqpw6ZBqun0RDldNT/+6oy93tHWBlF0CA4mMq5jr8q3iH35CW
 8TA1GCkurHZXTyYdYXR5SUHxPbOgZC87GAb7RlFEJJnvvkmy3jmBng675Hl5XAn7
 D8eJp3d4h5n121pkMLGcBc7K036T2uFsjrHWx+QsjKFUBWUBnuRfInRrLA5WnGo2
 U+KIEUPepdnbFFvYNv+kTgz2uE6FOqycEmnUKUKWUZYPN0GDAOw/V3813uxVRYtq
 27omIOL7PJp1wWjQnfXK
 =dnb7
 -----END PGP SIGNATURE-----

Merge tag 'pm-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "This includes some infrastructure changes in the PM core, mostly
  related to integration between runtime PM and system-wide suspend and
  hibernation, plus some driver changes depending on them and fixes for
  issues in that area which have become quite apparent recently.

  Also included are changes making more x86-based systems use the Low
  Power Sleep S0 _DSM interface by default, which turned out to be
  necessary to handle power button wakeups from suspend-to-idle on
  Surface Pro3.

  On the cpufreq front we have fixes and cleanups in the core, some new
  hardware support, driver updates and the removal of some unused code
  from the CPU cooling thermal driver.

  Apart from this, the Operating Performance Points (OPP) framework is
  prepared to be used with power domains in the future and there is a
  usual bunch of assorted fixes and cleanups.

  Specifics:

   - Define a PM driver flag allowing drivers to request that their
     devices be left in suspend after system-wide transitions to the
     working state if possible and add support for it to the PCI bus
     type and the ACPI PM domain (Rafael Wysocki).

   - Make the PM core carry out optimizations for devices with driver PM
     flags set in some cases and make a few drivers set those flags
     (Rafael Wysocki).

   - Fix and clean up wrapper routines allowing runtime PM device
     callbacks to be re-used for system-wide PM, change the generic
     power domains (genpd) framework to stop using those routines
     incorrectly and fix up a driver depending on that behavior of genpd
     (Rafael Wysocki, Ulf Hansson, Geert Uytterhoeven).

   - Fix and clean up the PM core's device wakeup framework and
     re-factor system-wide PM core code related to device wakeup
     (Rafael Wysocki, Ulf Hansson, Brian Norris).

   - Make more x86-based systems use the Low Power Sleep S0 _DSM
     interface by default (to fix power button wakeup from
     suspend-to-idle on Surface Pro3) and add a kernel command line
     switch to tell it to ignore the system sleep blacklist in the ACPI
     core (Rafael Wysocki).

   - Fix a race condition related to cpufreq governor module removal and
     clean up the governor management code in the cpufreq core (Rafael
     Wysocki).

   - Drop the unused generic code related to the handling of the static
     power energy usage model in the CPU cooling thermal driver along
     with the corresponding documentation (Viresh Kumar).

   - Add mt2712 support to the Mediatek cpufreq driver (Andrew-sh
     Cheng).

   - Add a new operating point to the imx6ul and imx6q cpufreq drivers
     and switch the latter to using clk_bulk_get() (Anson Huang, Dong
     Aisheng).

   - Add support for multiple regulators to the TI cpufreq driver along
     with a new DT binding related to that and clean up that driver
     somewhat (Dave Gerlach).

   - Fix a powernv cpufreq driver regression leading to incorrect CPU
     frequency reporting, fix that driver to deal with non-continguous
     P-states correctly and clean it up (Gautham Shenoy, Shilpasri
     Bhat).

   - Add support for frequency scaling on Armada 37xx SoCs through the
     generic DT cpufreq driver (Gregory CLEMENT).

   - Fix error code paths in the mvebu cpufreq driver (Gregory CLEMENT).

   - Fix a transition delay setting regression in the longhaul cpufreq
     driver (Viresh Kumar).

   - Add Skylake X (server) support to the intel_pstate cpufreq driver
     and clean up that driver somewhat (Srinivas Pandruvada).

   - Clean up the cpufreq statistics collection code (Viresh Kumar).

   - Drop cluster terminology and dependency on physical_package_id from
     the PSCI driver and drop dependency on arm_big_little from the SCPI
     cpufreq driver (Sudeep Holla).

   - Add support for system-wide suspend and resume to the RAPL power
     capping driver and drop a redundant semicolon from it (Zhen Han,
     Luis de Bethencourt).

   - Make SPI domain validation (in the SCSI SPI transport driver) and
     system-wide suspend mutually exclusive as they rely on the same
     underlying mechanism and cannot be carried out at the same time
     (Bart Van Assche).

   - Fix the computation of the amount of memory to preallocate in the
     hibernation core and clean up one function in there (Rainer Fiebig,
     Kyungsik Lee).

   - Prepare the Operating Performance Points (OPP) framework for being
     used with power domains and clean up one function in it (Viresh
     Kumar, Wei Yongjun).

   - Clean up the generic sysfs interface for device PM (Andy
     Shevchenko).

   - Fix several minor issues in power management frameworks and clean
     them up a bit (Arvind Yadav, Bjorn Andersson, Geert Uytterhoeven,
     Gustavo Silva, Julia Lawall, Luis de Bethencourt, Paul Gortmaker,
     Sergey Senozhatsky, gaurav jindal).

   - Make it easier to disable PM via Kconfig (Mark Brown).

   - Clean up the cpupower and intel_pstate_tracer utilities (Doug
     Smythies, Laura Abbott)"

* tag 'pm-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits)
  PCI / PM: Remove spurious semicolon
  cpufreq: scpi: remove arm_big_little dependency
  drivers: psci: remove cluster terminology and dependency on physical_package_id
  powercap: intel_rapl: Fix trailing semicolon
  dmaengine: rcar-dmac: Make DMAC reinit during system resume explicit
  PM / runtime: Allow no callbacks in pm_runtime_force_suspend|resume()
  PM / hibernate: Drop unused parameter of enough_swap
  PM / runtime: Check ignore_children in pm_runtime_need_not_resume()
  PM / runtime: Rework pm_runtime_force_suspend/resume()
  PM / genpd: Stop/start devices without pm_runtime_force_suspend/resume()
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  cpufreq: intel_pstate: Add Skylake servers support
  cpufreq: intel_pstate: Replace bxt_funcs with core_funcs
  platform/x86: surfacepro3: Support for wakeup from suspend-to-idle
  ACPI / PM: Use Low Power S0 Idle on more systems
  PM / wakeup: Print warn if device gets enabled as wakeup source during sleep
  PM / domains: Don't skip driver's ->suspend|resume_noirq() callbacks
  PM / core: Propagate wakeup_path status flag in __device_suspend_late()
  PM / core: Re-structure code for clearing the direct_complete flag
  powercap: add suspend and resume mechanism for SOC power limit
  ...
2018-01-29 09:47:41 -08:00
Linus Torvalds
49f9c3552c init_task out-of-lining
-----BEGIN PGP SIGNATURE-----
 
 iQIVAwUAWl80tvSw1s6N8H32AQJq8A//ViRN5fExrd678Eh2Bz1ytrJYMUfYY3Hv
 QTH5TH9zFyLFyWLB1Iwe13sdLVTTM88O0qcDb54Lx9fWUqeMZyYvBhLtWPc00lTU
 0m3EyYR87MFWaEV+VxaVWgWaWkMDkd39KubDitcS+YIBDszTuMpYodhPUsgLt7lr
 pePX7eurXKdQPTh4NUOjGA2NaZot3tga76J6D8NKruGYUstQCGxpP1ryiFfACnwf
 NLWNO8ZBMtlDwX1mHYOOMFMaBzFzXorPm7jY4HJDf3mUM84xI3ach6CuH9RTSzfq
 A+qB1U3QILPVFo2HtqOHui4bFjRwqOf6uIrI/KcnioJ37w1O+KFcMJeDnX2I211q
 f2lXehJLQA7kPmxQw8T3//HDRaLXc0Qxt7IPZRFinrlkcN4oh3DD5euMfCFBSoZG
 PTbjxlgMfzJPoZtqAcy0rV5L54a/F4h915OQPJCKLwujIsXD2nT993vNmGDyq4zh
 BzNMxSXJC8p+jYvQpNhWyyxwDBBT/YsVQo/ACwg4eJnD3blVTAioRT9ZZcAcsY0F
 0z1eWW5RiknzIaXQWvjfK0gYKpO+aMSu9+gipHfMbU3yXG+sPj/H6zAHYzqX3uQZ
 jb5Iujjnu49W/YD+RiMenuu59lNXUnLSeRnlV7dw0qxGK1FzGo24+ZzKFhJhKvzG
 tdfUsev1Mc8=
 =jhWg
 -----END PGP SIGNATURE-----

Merge tag 'init_task-20180117' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull init_task initializer cleanups from David Howells:
 "It doesn't seem useful to have the init_task in a header file rather
  than in a normal source file. We could consolidate init_task handling
  instead and expand out various macros.

  Here's a series of patches that consolidate init_task handling:

   (1) Make THREAD_SIZE available to vmlinux.lds for cris, hexagon and
       openrisc.

   (2) Alter the INIT_TASK_DATA linker script macro to set
       init_thread_union and init_stack rather than defining these in C.

       Insert init_task and init_thread_into into the init_stack area in
       the linker script as appropriate to the configuration, with
       different section markers so that they end up correctly ordered.

       We can then get merge ia64's init_task.c into the main one.

       We then have a bunch of single-use INIT_*() macros that seem only
       to be macros because they used to be used per-arch. We can then
       expand these in place of the user and get rid of a few lines and
       a lot of backslashes.

   (3) Expand INIT_TASK() in place.

   (4) Expand in place various small INIT_*() macros that are defined
       conditionally. Expand them and surround them by #if[n]def/#endif
       in the .c file as it takes fewer lines.

   (5) Expand INIT_SIGNALS() and INIT_SIGHAND() in place.

   (6) Expand INIT_STRUCT_PID in place.

  These macros can then be discarded"

* tag 'init_task-20180117' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  Expand INIT_STRUCT_PID and remove
  Expand the INIT_SIGNALS and INIT_SIGHAND macros and remove
  Expand various INIT_* macros and remove
  Expand INIT_TASK() in init/init_task.c and remove
  Construct init thread stack in the linker script rather than by union
  openrisc: Make THREAD_SIZE available to vmlinux.lds
  hexagon: Make THREAD_SIZE available to vmlinux.lds
  cris: Make THREAD_SIZE available to vmlinux.lds
2018-01-29 09:08:34 -08:00
David S. Miller
457740a903 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2018-01-26

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

The main changes are:

1) A number of extensions to tcp-bpf, from Lawrence.
    - direct R or R/W access to many tcp_sock fields via bpf_sock_ops
    - passing up to 3 arguments to bpf_sock_ops functions
    - tcp_sock field bpf_sock_ops_cb_flags for controlling callbacks
    - optionally calling bpf_sock_ops program when RTO fires
    - optionally calling bpf_sock_ops program when packet is retransmitted
    - optionally calling bpf_sock_ops program when TCP state changes
    - access to tclass and sk_txhash
    - new selftest

2) div/mod exception handling, from Daniel.
    One of the ugly leftovers from the early eBPF days is that div/mod
    operations based on registers have a hard-coded src_reg == 0 test
    in the interpreter as well as in JIT code generators that would
    return from the BPF program with exit code 0. This was basically
    adopted from cBPF interpreter for historical reasons.
    There are multiple reasons why this is very suboptimal and prone
    to bugs. To name one: the return code mapping for such abnormal
    program exit of 0 does not always match with a suitable program
    type's exit code mapping. For example, '0' in tc means action 'ok'
    where the packet gets passed further up the stack, which is just
    undesirable for such cases (e.g. when implementing policy) and
    also does not match with other program types.
    After considering _four_ different ways to address the problem,
    we adapt the same behavior as on some major archs like ARMv8:
    X div 0 results in 0, and X mod 0 results in X. aarch64 and
    aarch32 ISA do not generate any traps or otherwise aborts
    of program execution for unsigned divides.
    Given the options, it seems the most suitable from
    all of them, also since major archs have similar schemes in
    place. Given this is all in the realm of undefined behavior,
    we still have the option to adapt if deemed necessary.

3) sockmap sample refactoring, from John.

4) lpm map get_next_key fixes, from Yonghong.

5) test cleanups, from Alexei and Prashant.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-28 21:22:46 -05:00
Daniel Borkmann
73ae3c0426 bpf, arm: remove obsolete exception handling from div/mod
Since we've changed div/mod exception handling for src_reg in
eBPF verifier itself, remove the leftovers from arm32 JIT.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-26 16:42:07 -08:00
Arnd Bergmann
9a288ba7d1 SoCFPGA DTS updates for v4.16
- Stratix10 platform updates
   - Fix SPI interrupt numbers
   - Enable USB
 - Disable over-current for Arria10 devkit
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJaZ1i7AAoJEBmUBAuBoyj0oRQP/16Nw0R+OcGMqV2jtzu7g6+C
 3SUcUNI0quf9otMckvliHVzOBN1lfP08nyCJLY20mjxzMBUUtIVS6GzT39oOh8IO
 50jQB1/5pcCPTp6pC0rc9bMMlh58daAglJ48Y8XH+9k3kTr3hvUKMXVkZo6iH/VB
 00zUekeVenYM2O71AvktespwMnp9EQUI5rGBQLEO05Bpfquh5/RblBHOCAj4Gs6t
 xX7JdgOqx2MlmywHZmFE+j/NsROPH7Aq0X5QhHOlwwckghu9ITT2ZWIu1VpKdiI1
 qy1kJK4IZFJ11G8o1gDy3SYPQg3W+VzN66yZmtIx3V7h1v7EbqBP6zqNmZLJFfFm
 snEfz61JhCe7RYfWi4B+YNCs5id5x1b7ExnTWVuHMDGBT+YmjPUIgaHhlpEgYKtN
 hobdIvrjcrVcQVcSvybHoHjqaXG+vDv8YAZpVzriMpN9WeDiQCNnmNSeGiP1ItjK
 EMkqVguexKChQMH1/be7v+w1R9Y5DiQPz/r5NhuJoou9lJVQfpP2JXNSRkVC5JuO
 ROJ0X0zWQrdtOks0Pg0S1WfOMesjHEVhBzAyz5e9uEXu1gGqa5WuEBFly5yU//rE
 H95G03mcrx0ZI8oVUHZIPQ7nZrBmiqxuHfhEO0oKwD2FRWJrCAsXlN/gzaua79Ur
 QlEpAhpxKgZgiyBni7xn
 =wJ2q
 -----END PGP SIGNATURE-----

Merge tag 'socfpga_dts_for_v4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt

Pull "SoCFPGA DTS updates for v4.16" from Dinh Nguyen:
- Stratix10 platform updates
  - Fix SPI interrupt numbers
  - Enable USB
- Disable over-current for Arria10 devkit

* tag 'socfpga_dts_for_v4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: dts: stratix10: fix SPI settings
  ARM: dts: socfpga: add i2c reset signals
  arm64: dts: stratix10: add USB ECC reset bit
  arm64: dts: stratix10: enable USB on the devkit
  ARM: dts: socfpga: disable over-current for Arria10 USB devkit
2018-01-26 17:42:02 +01:00
Benjamin Gilbert
7f55c733b6 firmware: Drop FIRMWARE_IN_KERNEL Kconfig option
It doesn't actually do anything.  Merge its help text into
EXTRA_FIRMWARE.

Fixes: 5620a0d1aa ("firmware: delete in-kernel firmware")
Fixes: 0946b2fb38 ("firmware: cleanup FIRMWARE_IN_KERNEL message")
Signed-off-by: Benjamin Gilbert <benjamin.gilbert@coreos.com>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-25 12:46:30 +01:00
Marc Zyngier
c5baa1be8f irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG
CONFIG_IRQ_DOMAIN_DEBUG is similar to CONFIG_GENERIC_IRQ_DEBUGFS,
just with less information.

Spring cleanup time.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yang Shunyong <shunyong.yang@hxt-semitech.com>
Link: https://lkml.kernel.org/r/20180117142647.23622-1-marc.zyngier@arm.com
2018-01-24 12:32:58 +01:00
Sebastian Reichel
658d063d9d ARM: dts: imx6q-b450v3: Add switch port configuration
This adds support for the Marvell switch and names the network
ports according to the labels, that can be found next to the
connectors. The switch is connected to the host system using a
PCI based network card.

The PCI bus configuration has been written using the following
information:

root@b450v3# lspci -tv
-[0000:00]---00.0-[01]----00.0  Intel Corporation I210 Gigabit Network Connection
root@b450v3# lspci -nn
00:00.0 PCI bridge [0604]: Synopsys, Inc. Device [16c3:abcd] (rev 01)
01:00.0 Ethernet controller [0200]: Intel Corporation I210 Gigabit Network Connection [8086:1533] (rev 03)

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23 19:22:38 -05:00
Sebastian Reichel
b2ea7f8332 ARM: dts: imx6q-b650v3: Add switch port configuration
This adds support for the Marvell switch and names the network
ports according to the labels, that can be found next to the
connectors. The switch is connected to the host system using a
PCI based network card.

The PCI bus configuration has been written using the following
information:

root@b650v3# lspci -tv
-[0000:00]---00.0-[01]----00.0  Intel Corporation I210 Gigabit Network Connection
root@b650v3# lspci -nn
00:00.0 PCI bridge [0604]: Synopsys, Inc. Device [16c3:abcd] (rev 01)
01:00.0 Ethernet controller [0200]: Intel Corporation I210 Gigabit Network Connection [8086:1533] (rev 03)

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23 19:22:38 -05:00
Sebastian Reichel
e6b22e4169 ARM: dts: imx6q-b850v3: Add switch port configuration
This adds support for the Marvell switch and names the network
ports according to the labels, that can be found next to the
connectors ("ID", "IX", "ePort 1", "ePort 2"). The switch is
connected to the host system using a PCI based network card.

The PCI bus configuration has been written using the following
information:

root@b850v3# lspci -tv
-[0000:00]---00.0-[01]----00.0-[02-05]--+-01.0-[03]----00.0  Intel Corporation I210 Gigabit Network Connection
                                        +-02.0-[04]----00.0  Intel Corporation I210 Gigabit Network Connection
                                        \-03.0-[05]--
root@b850v3# lspci -nn
00:00.0 PCI bridge [0604]: Synopsys, Inc. Device [16c3:abcd] (rev 01)
01:00.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port Gen2 Switch [10b5:8605] (rev ab)
02:01.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port Gen2 Switch [10b5:8605] (rev ab)
02:02.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port Gen2 Switch [10b5:8605] (rev ab)
02:03.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port Gen2 Switch [10b5:8605] (rev ab)
03:00.0 Ethernet controller [0200]: Intel Corporation I210 Gigabit Network Connection [8086:1533] (rev 03)
04:00.0 Ethernet controller [0200]: Intel Corporation I210 Gigabit Network Connection [8086:1533] (rev 03)

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23 19:22:38 -05:00
Sebastian Reichel
e26dead442 ARM: dts: imx6q-bx50v3: Add internal switch
B850v3, B650v3 and B450v3 all have a GPIO bit banged MDIO bus to
communicate with a Marvell switch. On all devices the switch is
connected to a PCI based network card, which needs to be referenced
by DT, so this also adds the common PCI root node.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23 19:22:38 -05:00
Luis de Bethencourt
b276f1b3b1 KVM: arm/arm64: Fix trailing semicolon
The trailing semicolon is an empty statement that does no operation.
Removing it since it doesn't do anything.

Signed-off-by: Luis de Bethencourt <luisbg@kernel.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2018-01-23 16:48:32 +01:00
Tim Sander
2fd372084e ARM: dts: socfpga: add i2c reset signals
Add the reset signals for the i2c controllers on Cyclone5-based
SoCFPGA boards to the dtsi.

Signed-off-by: Tim Sander <tim.sander@hbm.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-01-23 09:37:22 -06:00
Dinh Nguyen
ef8216d28a ARM: dts: socfpga: disable over-current for Arria10 USB devkit
The USB host functionality on the Arria10 needs the disable-over-current
property.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-01-23 09:36:46 -06:00
Arnd Bergmann
1585defa51 Few omap dts fixes and n9 volume keys update for v4.16 merge window
For now, we need to rely on dts alias for n900 lcd and tvout order
 to prevent occasional blank lcd. And we need to reduce the shut down
 temperature for dra7 for non-cpu thermal cases.
 
 And looks like we're missing the n9 volume key mappings and there is
 active work going happening for n9 at least for postmarketos. So let's
 make sure the keys can be actually used as they are the only buttons
 on n9 in addition to the power key.
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEkgNvrZJU/QSQYIcQG9Q+yVyrpXMFAlpiE+kRHHRvbnlAYXRv
 bWlkZS5jb20ACgkQG9Q+yVyrpXOx7w//cVIQ+pmrnUkvnFRZLvWjzccqlAOpOKSf
 9S+af34MrkvAkSa45dYR3MIDdUjoXZLndbY+HFgAQAu66OzUginxuTu4I6mtC/Ge
 /Lq/7W7X+a5r3wY0x1XpJX/nRXYYujfelPrDl0Hu6nL2el8BWCVTt++VhsE5jgYM
 fIUKQjXvv4zxN/9y/QFjG5psk4jtXSG5JMbiqpJADIi1cM7mzkTQI+D3b4t89AIZ
 bOQggyB8Z+QrSIQxQA+iCkItu8BgYT1H0pdCs4ZC1BKN2EAG8lc9WKtDBVQR0mlE
 MAxrqyhPXKRy4rCzZ5sWyFe+cxlrnw9AdolHXSjYGYl/iQs8e8HjjiU8SxM0xLGV
 8Fn7bTPSqCXO+La8GBEEWEYNvt9muA9smzxOeALEMHKaM1SlFiYg/vz42teld4zT
 Z+KUv0lQhbKuYVWDG1goIc9IWaFi3Q892ldXWuDeOOQuCWOhfOrx25bN5F2wdmhy
 M6GprbNw3sfCZg7MGDYIfupFywbTK7hikdBECQUwB9Kghgh0xTyCRgD1IibyIHeq
 RxEF/NB5lKn8FbmVRDmAiVhAEupJPKBf2CKKU7uHmAKHmsqL7zWBs71XV25PXBI8
 vTd33sMWdos4DjWNAIW0xMTsCAa6ZDW2NSfuq6E3RQ1xsbbb+BBIU98eyji0jvVK
 D8v2r6dgPfc=
 =M8S+
 -----END PGP SIGNATURE-----

Merge tag 'omap-for-v4.16/dt-pt3-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Pull "dts fixes for omaps for v4.16 merge window" from Tony Lindgren:

Few omap dts fixes and n9 volume keys update for v4.16 merge window

For now, we need to rely on dts alias for n900 lcd and tvout order
to prevent occasional blank lcd. And we need to reduce the shut down
temperature for dra7 for non-cpu thermal cases.

And looks like we're missing the n9 volume key mappings and there is
active work going happening for n9 at least for postmarketos. So let's
make sure the keys can be actually used as they are the only buttons
on n9 in addition to the power key.

* tag 'omap-for-v4.16/dt-pt3-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Nokia N9: add support for up/down keys in the dts
  ARM: dts: dra7: Reduce shut down temperature of non-cpu thermal zones
  ARM: dts: n900: Add aliases for lcd and tvout displays
2018-01-23 10:19:46 +01:00
Eric W. Biederman
f71dd7dc2d signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed
There are so many places that build struct siginfo by hand that at
least one of them is bound to get it wrong.  A handful of cases in the
kernel arguably did just that when using the errno field of siginfo to
pass no errno values to userspace.  The usage is limited to a single
si_code so at least does not mess up anything else.

Encapsulate this questionable pattern in a helper function so
that the userspace ABI is preserved.

Update all of the places that use this pattern to use the new helper
function.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2018-01-22 19:07:11 -06:00
Arnd Bergmann
0ca14cdea7 ARM: omap: hwmod: fix section mismatch warnings
Older compilers choose not to inline _setup_clkctrl_provider(),
leading to a harmless warning:

WARNING: vmlinux.o(.text+0x27b34): Section mismatch in reference from the function _setup_clkctrl_provider() to the function .init.text:memblock_virt_alloc_try_nid()
The function _setup_clkctrl_provider() references
the function __init memblock_virt_alloc_try_nid().
This is often because _setup_clkctrl_provider lacks a __init
annotation or the annotation of memblock_virt_alloc_try_nid is wrong.

This annotates it as __init as well, which lets the linker
see that it is actually correct.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-22 12:39:36 +01:00
Arnd Bergmann
6ab1e867ac Few omap interconnect dts fixes for v4.16 merge window
Now that we have the dts clocks for the clkctrl clock and the
 interconnect binding, we need to update the existing ti-sysc
 users according to the binding to make it usable for drivers.
 
 Apologies for not being able to send this earlier but it took
 me few revisions to get the smartreflex changes right and
 tested with yet to be posted patches to make smartreflex probe
 with dts and I wanted to have it sit in next for a while to make
 sure we're not introducing regressions for legacy platform data
 based booting.
 
 Note that this is based on a merge with commit 20a2742e57
 ("dt-bindings: ti-sysc: Update binding for timers and capabilities")
 to avoid a merge conflict with the binding changes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEkgNvrZJU/QSQYIcQG9Q+yVyrpXMFAlpiDqURHHRvbnlAYXRv
 bWlkZS5jb20ACgkQG9Q+yVyrpXMmOg/9Hr2lan1ZTqNBTgBixbcxj+gmovVlwjKa
 1tXtNlkTco17BjEyDmKb3dzS16zT5YXv27RrIjCukQsKvVr2HOW4EnJ6iPPP6Y97
 bp3Tx3ejqzoUNCcTUII4nWLZKaFXZ6C27sDrylEovsDJR9InocNYk5RhYDuPKPAw
 3YaG/+QuRLc98YzjPGbSzUZws4EDUJhfHBqsVBwr4UFNJblRJe65kTFeH7BkZ9F8
 eXenpUcS1JQMjMARR7aZck+7/3jyjtqWft1GjFWUto2kfx0tA8Ay4SyOqJxS9REa
 0TK/Qdik2KDqP3wgBy7FLgXakmMOWttDFB5LUsWZbSyIO9vTgZj4RimSRgctfMxx
 XbyiJKovlNq1uDIPv3z/rHOala3WifNnzpf0m9izE5kbMW7vdHVycwzmJ2/Ushz6
 rV4pqYVZ7o+SSnYRoiSdEQ/MMgMuypuL1+mhpIHL/rh+vCBGVaUfKRkrIcFwfujL
 H0nhB4PG8DEyOoc6dr8X317jUCgj0X6xTBO8jJUhT5R8tMHuKjqSSAq1QKCL7q5K
 /tvjkE4fEIs+Hr0bSkBZ+Jd/llWZrmkD7a1etJtw5WbRnPROYYRsb0PeNDFWTtOF
 nw/S4YF1F3k6BzOQobH2BjkXOCTJD1FhnfH7hmTLJ3ZReyQLafKFu2DHdje8GyFm
 XjGUuctAC24=
 =oKRR
 -----END PGP SIGNATURE-----

Merge tag 'omap-for-v4.16/dt-clk-dts-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Pull "Few omap interconnect dts fixes for v4.16 merge window" from
Tony Lindgren:

Now that we have the dts clocks for the clkctrl clock and the
interconnect binding, we need to update the existing ti-sysc
users according to the binding to make it usable for drivers.

Apologies for not being able to send this earlier but it took
me few revisions to get the smartreflex changes right and
tested with yet to be posted patches to make smartreflex probe
with dts and I wanted to have it sit in next for a while to make
sure we're not introducing regressions for legacy platform data
based booting.

Note that this is based on a merge with commit 20a2742e57
("dt-bindings: ti-sysc: Update binding for timers and capabilities")
to avoid a merge conflict with the binding changes.

* tag 'omap-for-v4.16/dt-clk-dts-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Update ti-sysc data for existing users
  ARM: dts: Fix smartreflex compatible for omap3 shared mpu-iva instance
  dt-bindings: ti-sysc: Update binding for timers and capabilities
2018-01-22 12:36:57 +01:00
Arnd Bergmann
3343647813 ARM: pxa/tosa-bt: add MODULE_LICENSE tag
Without this tag, we get a build warning:

WARNING: modpost: missing MODULE_LICENSE() in arch/arm/mach-pxa/tosa-bt.o

For completeness, I'm also adding author and description fields.

Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-22 12:36:03 +01:00
Russell King
3a175cdf43 Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-next 2018-01-21 15:38:10 +00:00
Nicolas Pitre
ff5fdafc9e ARM: 8745/1: get rid of __memzero()
The __memzero assembly code is almost identical to memset's except for
two orr instructions. The runtime performance of __memset(p, n) and
memset(p, 0, n) is accordingly almost identical.

However, the memset() macro used to guard against a zero length and to
call __memzero at compile time when the fill value is a constant zero
interferes with compiler optimizations.

Arnd found tha the test against a zero length brings up some new
warnings with gcc v8:

  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82103

And successively rremoving the test against a zero length and the call
to __memzero optimization produces the following kernel sizes for
defconfig with gcc 6:

    text     data     bss       dec       hex  filename
12248142  6278960  413588  18940690   1210312  vmlinux.orig
12244474  6278960  413588  18937022   120f4be  vmlinux.no_zero_test
12239160  6278960  413588  18931708   120dffc  vmlinux.no_memzero

So it is probably not worth keeping __memzero around given that the
compiler can do a better job at inlining trivial memset(p,0,n) on its
own. And the memset code already handles a zero length just fine.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:37:56 +00:00
Arnd Bergmann
ec80eb4671 ARM: 8744/1: don't discard memblock for kexec
Discarding the memblock arrays usually works, but causes problems
with kexec, as pointed out by this kbuild warning:

WARNING: vmlinux.o(.text+0x7c60): Section mismatch in reference from the function machine_kexec_prepare() to the function .meminit.text:memblock_is_region_memory()

This lets us keep the memblock structures around whenever kexec
is enabled, but otherwise still drops them.

Fixes: cf1b09908a ("ARM: 8693/1: discard memblock arrays when possible")
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:36:50 +00:00
Arnd Bergmann
a21b4c10c7 ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag
Without this tag, we get a build warning:

WARNING: modpost: missing MODULE_LICENSE() in arch/arm/common/bL_switcher_dummy_if.o

For completeness, I'm also adding author and description fields.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:27 +00:00
Jinbum Park
b26d07a0f5 ARM: 8742/1: Always use REFCOUNT_FULL
refcount_t overflow detection is implemented as two way.

1. REFCOUNT_FULL

- It means the full refcount_t implementation
  which has validation but is slightly slower.
- (fd25d19f6b ("locking/refcount:
  Create unchecked atomic_t implementation"))

2. ARCH_HAS_REFCOUNT

- refcount_t overflow detection can be optimized
  via an arch-dependent way.
- It is based on atomic_t infrastructure
  with some instruction added for detection.
- It is faster than REFCOUNT_FULL,
  as fast as unprotected atomic_t infrastructure.
- (7a46ec0e2f ("locking/refcounts, x86/asm:
  Implement fast refcount overflow protection"))

ARCH_HAS_REFCOUNT has implemented for x86,
not implemented for others.

In the case of arm64,
Will Deacon said he didn't want the specialized
"fast but technically incomplete" refcounting as seen with x86's.

But rather to set REFCOUNT_FULL by default
because no one could point to real-world performance impacts with
REFCOUNT_FULL vs unprotected atomic_t infrastructure.

This is the reason arm64 ended up enabling REFCOUNT_FULL.
(4adcec1164 ("arm64: Always use REFCOUNT_FULL"))

As with the decision of arm64,
arm can set REFCOUNT_FULL by default.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:26 +00:00
Arnd Bergmann
a5281feafd ARM: 8741/1: B15: fix unused label warnings
The new conditionally compiled code leaves some labels and one
variable unreferenced when CONFIG_HOTPLUG_CPU and CONFIG_PM_SLEEP
are disabled:

arch/arm/mm/cache-b15-rac.c: In function 'b15_rac_init':
arch/arm/mm/cache-b15-rac.c:353:1: error: label 'out_unmap' defined but not used [-Werror=unused-label]
 out_unmap:
 ^~~~~~~~~
arch/arm/mm/cache-b15-rac.c:351:1: error: label 'out_cpu_dead' defined but not used [-Werror=unused-label]
 out_cpu_dead:
 ^~~~~~~~~~~~
At top level:
arch/arm/mm/cache-b15-rac.c:53:12: error: 'rac_config0_reg' defined but not used [-Werror=unused-variable]

This replaces the existing #ifdef conditionals with IS_ENABLED()
checks that let the compiler figure out for itself which code to
drop.

Fixes: 55de88778f ("ARM: 8726/1: B15: Add CPU hotplug awareness")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:25 +00:00
Vladimir Murzin
636e645f1f ARM: 8740/1: NOMMU: Make sure we do not hold stale data in mem[] array
adjust_lowmem_bounds() called twice which can lead to stalled data
(i.e. subreg) value in mem[] array after the first call.

Zero out mem[] array before we allocate MPU regions for memory.

Fixes: 5c9d9a1b3a ("ARM: 8712/1: NOMMU: Use more MPU regions to cover memory")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:24 +00:00
Vladimir Murzin
62d1c95d57 ARM: 8739/1: NOMMU: Setup VBAR/Hivecs for secondaries cores
With switch to dynamic exception base address setting, VBAR/Hivecs
set only for boot CPU, but secondaries stay unaware of that. That
might lead to weird effects when trying up to bring up secondaries.

Fixes: ad475117d2 ("ARM: 8649/2: nommu: remove Hivecs configuration is asm")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:23 +00:00
Vladimir Murzin
c7780ab56c ARM: 8738/1: Disable CONFIG_DEBUG_VIRTUAL for NOMMU
While running MPS2 platform (NOMMU) with DTB placed below PHYS_OFFSET
following warning poped up:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at arch/arm/mm/physaddr.c:42 __virt_to_phys+0x2f/0x40
virt_to_phys used for non-linear address: 00004000 (0x4000)
CPU: 0 PID: 0 Comm: swapper Not tainted 4.15.0-rc1-5a31bf2-clean+ #2767
Hardware name: MPS2 (Device Tree Support)
[<2100bf39>] (unwind_backtrace) from [<2100b3ff>] (show_stack+0xb/0xc)
[<2100b3ff>] (show_stack) from [<2100e697>] (__warn+0x87/0xac)
[<2100e697>] (__warn) from [<2100e6db>] (warn_slowpath_fmt+0x1f/0x28)
[<2100e6db>] (warn_slowpath_fmt) from [<2100c603>] (__virt_to_phys+0x2f/0x40)
[<2100c603>] (__virt_to_phys) from [<2116a499>] (early_init_fdt_reserve_self+0xd/0x24)
[<2116a499>] (early_init_fdt_reserve_self) from [<2116222d>] (arm_memblock_init+0xb5/0xf8)
[<2116222d>] (arm_memblock_init) from [<21161cad>] (setup_arch+0x38b/0x50e)
[<21161cad>] (setup_arch) from [<21160455>] (start_kernel+0x31/0x280)
[<21160455>] (start_kernel) from [<00000000>] (  (null))
random: get_random_bytes called from init_oops_id+0x17/0x2c with crng_init=0
---[ end trace 0000000000000000 ]---

Platforms without MMU support run with 1:1 (i.e. linear) memory
mapping, so disable CONFIG_DEBUG_VIRTUAL.

Fixes: e377cd8221 ("ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:21 +00:00
Jinbum Park
a8e53c151f ARM: 8737/1: mm: dump: add checking for writable and executable
Page mappings with full RWX permissions are a security risk.
x86, arm64 has an option to walk the page tables
and dump any bad pages.

(1404d6f13e
("arm64: dump: Add checking for writable and exectuable pages"))
Add a similar implementation for arm.

Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:20 +00:00
Jinbum Park
d02ca6d76b ARM: 8736/1: mm: dump: make the page table dumping seq_file
This patch makes the page table dumping seq_file optional.
It makes the page table dumping code usable for other cases.

This patch refers below commit of arm64.
(ae5d1cf358
("arm64: dump: Make the page table dumping seq_file optional"))

Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:18 +00:00
Jinbum Park
4fb69cc456 ARM: 8735/1: mm: dump: make page table dumping reusable
This patch refactors the arm page table dumping code,
so multiple tables may be registered with the framework.

This patch refers below commits of arm64.
(4674fdb9f1 ("arm64: mm: dump: make page table dumping reusable"))
(4ddb9bf833 ("arm64: dump: Make ptdump debugfs a separate option"))

Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-21 15:32:17 +00:00
David S. Miller
ea9722e265 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2018-01-19

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

The main changes are:

1) bpf array map HW offload, from Jakub.

2) support for bpf_get_next_key() for LPM map, from Yonghong.

3) test_verifier now runs loaded programs, from Alexei.

4) xdp cpumap monitoring, from Jesper.

5) variety of tests, cleanups and small x64 JIT optimization, from Daniel.

6) user space can now retrieve HW JITed program, from Jiong.

Note there is a minor conflict between Russell's arm32 JIT fixes
and removal of bpf_jit_enable variable by Daniel which should
be resolved by keeping Russell's comment and removing that variable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-20 22:03:46 -05:00
David S. Miller
8565d26bcb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The BPF verifier conflict was some minor contextual issue.

The TUN conflict was less trivial.  Cong Wang fixed a memory leak of
tfile->tx_array in 'net'.  This is an skb_array.  But meanwhile in
net-next tun changed tfile->tx_arry into tfile->tx_ring which is a
ptr_ring.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-19 22:59:33 -05:00
Daniel Borkmann
fa9dd599b4 bpf: get rid of pure_initcall dependency to enable jits
Having a pure_initcall() callback just to permanently enable BPF
JITs under CONFIG_BPF_JIT_ALWAYS_ON is unnecessary and could leave
a small race window in future where JIT is still disabled on boot.
Since we know about the setting at compilation time anyway, just
initialize it properly there. Also consolidate all the individual
bpf_jit_enable variables into a single one and move them under one
location. Moreover, don't allow for setting unspecified garbage
values on them.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-19 18:37:00 -08:00
Linus Torvalds
6ec8765f55 ARM: SoC fixes for 4.15
We have various small DT fixes, and one important regression fix:
 
 The recent device tree bugfixes that were intended to address issues that
 'dtc' started warning about in 4.15 fixed various USB PHY device nodes,
 but it turns out that we had code that depended on those nodes being
 incorrect and the probe failing with a particular error code. With the
 workaround we can also deal with correct device nodes.
 
 The DT fixes include:
  - Allwinner A10 and A20 had the display pipeline set up incorrectly
    (introduced in v4.15)
  - The Altera PMU lacked an interrupt-parent (never worked)
  - Pin muxing on the Openblocks A7 (never worked)
  - Clocks might get set up wrong on Armada 7K/8K (4.15 regression)
 
 We now have  additional device tree patches to address all the remaining
 warnings introduced in 4.15, but decided to queue them for 4.16 instead,
 to avoid risking another regression like the USB PHY thing mentioned
 above.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJaYhXCAAoJEGCrR//JCVIngrUP/3i6EdgAi3OhyKjguBJi9t38
 yA8yEnbcd0JYg29lM43fbiridTAJFeMB49u7W7lDLLftAlP4V7p5xA8kgfRMZJSw
 yaXX4lerHTjEGSZgQPakMCHNoXGndj7m6sYtSn35UBFYZukKBUuo4S079udWuupv
 uQbIjrCEJVlGi2Msz31pNzwt/6YAdCNOJocUfyPP/JuI2RPnR4T83Y0/CqcQ7IiP
 4fIl3jf9x/AP5aUWxTfVuDI/1D3dowPnwBTQv4qyc++3/BFbPDOZAyWHiPb9EA73
 3dIzNEjRSi85UYN2LbwglhjXXugvOsbc5W4VsaOicgnGDZ/JlTnNcUDNkEyg04ae
 N3I40ypxFBT2DFGwuDuPiHgFIZmLiguo94TczqZPQcgl/wIOgYAbV1RlyKHQpVXu
 fw64KV02j36GhG+NOE/bnPYA2CBaCSUylryFS0GCgwd+h7m3oZheD/IJj8pbCyls
 HSdVr5syPZE5seqFnvA0WnkrzEPrMwuP9XMrqIRlmzE3cM5kQUBPmqSIBKer9/a4
 2x4eENHhO1zfPieZrk0yk2PTJ8Z0UU6fGp5QO9GenFJzRbPuObEOKfP0X2HW6qsc
 DieIvHbzTICxp4rm6LHIJRYDm58u/ZfFIZLkOXrAHFsa2NTEV/g65xIisf2gDD90
 WyqlBA4XrFKNGNRBsfqw
 =57ve
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "We have various small DT fixes, and one important regression fix:

  The recent device tree bugfixes that were intended to address issues
  that 'dtc' started warning about in 4.15 fixed various USB PHY device
  nodes, but it turns out that we had code that depended on those nodes
  being incorrect and the probe failing with a particular error code.
  With the workaround we can also deal with correct device nodes.

  The DT fixes include:

   - Allwinner A10 and A20 had the display pipeline set up incorrectly
     (introduced in v4.15)

   - The Altera PMU lacked an interrupt-parent (never worked)

   - Pin muxing on the Openblocks A7 (never worked)

   - Clocks might get set up wrong on Armada 7K/8K (4.15 regression)

  We now have additional device tree patches to address all the
  remaining warnings introduced in 4.15, but decided to queue them for
  4.16 instead, to avoid risking another regression like the USB PHY
  thing mentioned above.

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  phy: work around 'phys' references to usb-nop-xceiv devices
  ARM: sunxi_defconfig: Enable CMA
  arm64: dts: socfpga: add missing interrupt-parent
  ARM: dts: sun[47]i: Fix display backend 1 output to TCON0 remote endpoint
  ARM64: dts: marvell: armada-cp110: Fix clock resources for various node
  ARM: dts: da850-lcdk: Remove leading 0x and 0s from unit address
  ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7
2018-01-19 11:21:31 -08:00
Pavel Machek
0e6e6dcce8 ARM: dts: Nokia N9: add support for up/down keys in the dts
This adds support for volume up/down keys in the dts.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-01-19 07:40:13 -08:00
Arnd Bergmann
e8bfa04224 ARM: dts: nomadik: add interrupt-parent for clcd
The clcd device is lacking an interrupt-parent property, which makes
the interrupt unusable and shows up as a warning with the latest
dtc version:

arch/arm/boot/dts/ste-nomadik-s8815.dtb: Warning (interrupts_property): Missing interrupt-parent for /amba/clcd@10120000
arch/arm/boot/dts/ste-nomadik-nhk15.dtb: Warning (interrupts_property): Missing interrupt-parent for /amba/clcd@10120000

I looked up the old board files and found that this interrupt has
the same irqchip as all the other on-chip device, it just needs one
extra line.

Fixes: 17470b7da1 ("ARM: dts: add the CLCD LCD display to the NHK15")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-19 16:21:48 +01:00
Arnd Bergmann
232e9d4c95 DTS changes to enable Ethernet on the Gemini boards.
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJaXoqhAAoJEEEQszewGV1zM/oP/0Q5lVYpmrQfDjfzWyPOLLK0
 UztXCYcvZB1FhOtFJt5EOgMi8EqWwpCjzFf8s09WMSYrpsoOFRDrE36JtkOy9I+P
 UWJiDLfuo1l6i4bcq8hJ8Vv0JNdAH05txM8NhqswPuIFocg43LlYI0b/eyO/I4T+
 ihUPh6YSuFIqGIkK2v6q9I9+Sre9tEqhOfnfqpLEXg1dR+Xk70bLKG5VFaHLOQND
 W+DNeZRdR7LjPhdZj1l/lidn49Pqjrxmr8gNlapNH80uK4FXyxP5p/yqf584FNyy
 PQCSETY8Ej9z96sXudTtyx4KgqHfMSpJyYujtakgwSpmm7Sd/8jsg7GlCqHObsli
 5HnyyIarCmoptEQTHv2/FjbsqgOQyRgpU4oYZetoyjmqv/YrPs9gJ7cumGeYUfG5
 UbH5fR3SDIfXDDVVL/LTuHOJYCLr8hEPwB2mSPfugzyU0vQ0Ahwe3zb9D7xPnomw
 nXIJMFzgAn8V9Zpd21L/oZcJ4L+2EwRbYl6Mi0ejjXMSmhC3drKpufhfjxzYmu+Q
 Ex94tQetSkKCbjbZOG/0ifhymO2/+WSaDxwf9fEPGOzTpM1RZob+uKDx9Z508F2e
 b/hY+5VGDjOYwGFZx/QTgnNtjuf2NDiZnfSVpGp9DUDjEMisjTAxYwWwRK1ZB1we
 gYq7/ChJdUnRiROcH7uz
 =TEWf
 -----END PGP SIGNATURE-----

Merge tag 'gemini-dts-update-3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into next/dt

Pull "DTS changes to enable Ethernet on the Gemini boards" from Linus Walleij:

I realize it's late. Like really late. But Dmiller merged the ethernet
bindings and the driver for Gemini ethernet, and Gemini is all about
networking.

So for a late merge consideration here are the two patches giving
ethernet on Gemini, on top of what is already merged.

* tag 'gemini-dts-update-3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: dts: Add ethernet to a bunch of platforms
  ARM: dts: Add ethernet to the Gemini SoC
2018-01-19 16:09:49 +01:00
Maxime Ripard
c13e7f313d ARM: sunxi_defconfig: Enable CMA
The DRM driver most notably, but also out of tree drivers (for now) like
the VPU or GPU drivers, are quite big consumers of large, contiguous memory
buffers. However, the sunxi_defconfig doesn't enable CMA in order to
mitigate that, which makes them almost unusable.

Enable it to make sure it somewhat works.

Cc: <stable@vger.kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-19 16:08:08 +01:00
Linus Torvalds
dda3e15231 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "These are the ARM BPF fixes as discussed earlier this week"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: net: bpf: clarify tail_call index
  ARM: net: bpf: fix LDX instructions
  ARM: net: bpf: fix register saving
  ARM: net: bpf: correct stack layout documentation
  ARM: net: bpf: move stack documentation
  ARM: net: bpf: fix stack alignment
  ARM: net: bpf: fix tail call jumps
  ARM: net: bpf: avoid 'bx' instruction on non-Thumb capable CPUs
2018-01-18 10:57:59 -08:00
Rafael J. Wysocki
f31c376025 Merge branch 'pm-cpufreq'
* pm-cpufreq: (36 commits)
  cpufreq: scpi: remove arm_big_little dependency
  drivers: psci: remove cluster terminology and dependency on physical_package_id
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  cpufreq: intel_pstate: Add Skylake servers support
  cpufreq: intel_pstate: Replace bxt_funcs with core_funcs
  cpufreq: imx6q: add 696MHz operating point for i.mx6ul
  ARM: dts: imx6ul: add 696MHz operating point
  cpufreq: stats: Change return type of cpufreq_stats_update() as void
  powernv-cpufreq: Treat pstates as opaque 8-bit values
  powernv-cpufreq: Fix pstate_to_idx() to handle non-continguous pstates
  powernv-cpufreq: Add helper to extract pstate from PMSR
  cpu_cooling: Remove static-power related documentation
  cpufreq: imx6q: switch to Use clk_bulk_get() to refine clk operations
  PM / OPP: Make local function ti_opp_supply_set_opp() static
  PM / OPP: Add ti-opp-supply driver
  dt-bindings: opp: Introduce ti-opp-supply bindings
  cpufreq: ti-cpufreq: Add support for multiple regulators
  cpufreq: ti-cpufreq: Convert to module_platform_driver
  cpufreq: Add DVFS support for Armada 37xx
  MAINTAINERS: add new entries for Armada 37xx cpufreq driver
  ...
2018-01-18 02:52:56 +01:00
Rob Herring
4670d610d5 PCI: Move OF-related PCI functions into PCI core
Following what has been done for other subsystems, move the remaining PCI
related code out of drivers/of/ and into drivers/pci/of.c

With this, we can kill a few kconfig symbols.

Signed-off-by: Rob Herring <robh@kernel.org>
[bhelgaas: minor whitespace, comment cleanups]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Frank Rowand <frowand.list@gmail.com>
2018-01-17 17:36:39 -06:00
Russell King
091f02483d ARM: net: bpf: clarify tail_call index
As per 90caccdd8c ("bpf: fix bpf_tail_call() x64 JIT"), the index used
for array lookup is defined to be 32-bit wide. Update a misleading
comment that suggests it is 64-bit wide.

Fixes: 39c13c204b ("arm: eBPF JIT compiler")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:39:10 +00:00
Russell King
ec19e02b34 ARM: net: bpf: fix LDX instructions
When the source and destination register are identical, our JIT does not
generate correct code, which leads to kernel oopses.

Fix this by (a) generating more efficient code, and (b) making use of
the temporary earlier if we will overwrite the address register.

Fixes: 39c13c204b ("arm: eBPF JIT compiler")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:38:21 +00:00
Russell King
02088d9b39 ARM: net: bpf: fix register saving
When an eBPF program tail-calls another eBPF program, it enters it after
the prologue to avoid having complex stack manipulations.  This can lead
to kernel oopses, and similar.

Resolve this by always using a fixed stack layout, a CPU register frame
pointer, and using this when reloading registers before returning.

Fixes: 39c13c204b ("arm: eBPF JIT compiler")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:38:07 +00:00
Russell King
0005e55a79 ARM: net: bpf: correct stack layout documentation
The stack layout documentation incorrectly suggests that the BPF JIT
scratch space starts immediately below BPF_FP. This is not correct,
so let's fix the documentation to reflect reality.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:36:43 +00:00
Russell King
70ec3a6c2c ARM: net: bpf: move stack documentation
Move the stack documentation towards the top of the file, where it's
relevant for things like the register layout.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:36:43 +00:00
Russell King
d1220efd23 ARM: net: bpf: fix stack alignment
As per 2dede2d8e9 ("ARM EABI: stack pointer must be 64-bit aligned
after a CPU exception") the stack should be aligned to a 64-bit boundary
on EABI systems.  Ensure that the eBPF JIT appropraitely aligns the
stack.

Fixes: 39c13c204b ("arm: eBPF JIT compiler")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:36:43 +00:00
Russell King
f4483f2cc1 ARM: net: bpf: fix tail call jumps
When a tail call fails, it is documented that the tail call should
continue execution at the following instruction.  An example tail call
sequence is:

  12: (85) call bpf_tail_call#12
  13: (b7) r0 = 0
  14: (95) exit

The ARM assembler for the tail call in this case ends up branching to
instruction 14 instead of instruction 13, resulting in the BPF filter
returning a non-zero value:

  178:	ldr	r8, [sp, #588]	; insn 12
  17c:	ldr	r6, [r8, r6]
  180:	ldr	r8, [sp, #580]
  184:	cmp	r8, r6
  188:	bcs	0x1e8
  18c:	ldr	r6, [sp, #524]
  190:	ldr	r7, [sp, #528]
  194:	cmp	r7, #0
  198:	cmpeq	r6, #32
  19c:	bhi	0x1e8
  1a0:	adds	r6, r6, #1
  1a4:	adc	r7, r7, #0
  1a8:	str	r6, [sp, #524]
  1ac:	str	r7, [sp, #528]
  1b0:	mov	r6, #104
  1b4:	ldr	r8, [sp, #588]
  1b8:	add	r6, r8, r6
  1bc:	ldr	r8, [sp, #580]
  1c0:	lsl	r7, r8, #2
  1c4:	ldr	r6, [r6, r7]
  1c8:	cmp	r6, #0
  1cc:	beq	0x1e8
  1d0:	mov	r8, #32
  1d4:	ldr	r6, [r6, r8]
  1d8:	add	r6, r6, #44
  1dc:	bx	r6
  1e0:	mov	r0, #0		; insn 13
  1e4:	mov	r1, #0
  1e8:	add	sp, sp, #596	; insn 14
  1ec:	pop	{r4, r5, r6, r7, r8, sl, pc}

For other sequences, the tail call could end up branching midway through
the following BPF instructions, or maybe off the end of the function,
leading to unknown behaviours.

Fixes: 39c13c204b ("arm: eBPF JIT compiler")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:35:51 +00:00
Russell King
e906248182 ARM: net: bpf: avoid 'bx' instruction on non-Thumb capable CPUs
Avoid the 'bx' instruction on CPUs that have no support for Thumb and
thus do not implement this instruction by moving the generation of this
opcode to a separate function that selects between:

	bx	reg

and

	mov	pc, reg

according to the capabilities of the CPU.

Fixes: 39c13c204b ("arm: eBPF JIT compiler")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-01-17 19:35:22 +00:00
Linus Walleij
95220046a6 ARM: dts: Add ethernet to a bunch of platforms
These platforms have the PHY defined already so we just
need to add a single device node to each of them to activate
the ethernet device.

The PHY skew/delay settings for pin control is known from a
few vendor trees and old OpenWRT patch sets.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-01-17 00:26:50 +01:00
Linus Walleij
8f3093b348 ARM: dts: Add ethernet to the Gemini SoC
This adds the Gemini ethernet node to the Gemini SoC.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-01-17 00:24:11 +01:00
James Morse
3368bd8097 KVM: arm64: Handle RAS SErrors from EL1 on guest exit
We expect to have firmware-first handling of RAS SErrors, with errors
notified via an APEI method. For systems without firmware-first, add
some minimal handling to KVM.

There are two ways KVM can take an SError due to a guest, either may be a
RAS error: we exit the guest due to an SError routed to EL2 by HCR_EL2.AMO,
or we take an SError from EL2 when we unmask PSTATE.A from __guest_exit.

For SError that interrupt a guest and are routed to EL2 the existing
behaviour is to inject an impdef SError into the guest.

Add code to handle RAS SError based on the ESR. For uncontained and
uncategorized errors arm64_is_fatal_ras_serror() will panic(), these
errors compromise the host too. All other error types are contained:
For the fatal errors the vCPU can't make progress, so we inject a virtual
SError. We ignore contained errors where we can make progress as if
we're lucky, we may not hit them again.

If only some of the CPUs support RAS the guest will see the cpufeature
sanitised version of the id registers, but we may still take RAS SError
on this CPU. Move the SError handling out of handle_exit() into a new
handler that runs before we can be preempted. This allows us to use
this_cpu_has_cap(), via arm64_is_ras_serror().

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-01-16 15:09:13 +00:00
James Morse
4f5abad9e8 KVM: arm/arm64: mask/unmask daif around VHE guests
Non-VHE systems take an exception to EL2 in order to world-switch into the
guest. When returning from the guest KVM implicitly restores the DAIF
flags when it returns to the kernel at EL1.

With VHE none of this exception-level jumping happens, so KVMs
world-switch code is exposed to the host kernel's DAIF values, and KVM
spills the guest-exit DAIF values back into the host kernel.
On entry to a guest we have Debug and SError exceptions unmasked, KVM
has switched VBAR but isn't prepared to handle these. On guest exit
Debug exceptions are left disabled once we return to the host and will
stay this way until we enter user space.

Add a helper to mask/unmask DAIF around VHE guests. The unmask can only
happen after the hosts VBAR value has been synchronised by the isb in
__vhe_hyp_call (via kvm_call_hyp()). Masking could be as late as
setting KVMs VBAR value, but is kept here for symmetry.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-01-16 15:08:24 +00:00
Kees Cook
08626a6056 arm: Implement thread_struct whitelist for hardened usercopy
While ARM32 carries FPU state in the thread structure that is saved and
restored during signal handling, it doesn't need to declare a usercopy
whitelist, since existing accessors are all either using a bounce buffer
(for which whitelisting isn't checking the slab), are statically sized
(which will bypass the hardened usercopy check), or both.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-01-15 12:08:06 -08:00
Greg Kroah-Hartman
c182ce9bc8 Merge 4.15-rc8 into usb-next
We want the USB fixes in here as well for merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15 15:00:11 +01:00
Daniel Golle
9e6c62b05c ARM: dts: rename oxnas dts files
Other platforms' device-tree files start with a platform prefix, such as
sun7i-a20-*.dts or at91-*.dts.
This naming scheme turns out to be handy when using multi-platform build
systems such as OpenWrt.
Prepend oxnas files with their platform prefix to comply with the naming
scheme already used for most other platforms.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-15 14:11:01 +01:00
Arnd Bergmann
5c1037196b ARM: dts: s5pv210: add interrupt-parent for ohci
The ohci-hcd node has an interrupt number but no interrupt-parent,
leading to a warning with current dtc versions:

arch/arm/boot/dts/s5pv210-aquila.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-goni.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-smdkc110.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-smdkv210.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-torbreck.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000

As seen from the related exynos dts files, the ohci and ehci controllers
always share one interrupt number, and the number is the same here as
well, so setting the same interrupt-parent is the reasonable solution
here.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-15 14:00:02 +01:00
Arnd Bergmann
ca32e0c4bf ARM: lpc3250: fix uda1380 gpio numbers
dtc warns about obviously incorrect GPIO numbers for the audio codec
on both lpc32xx boards:

arch/arm/boot/dts/lpc3250-phy3250.dtb: Warning (gpios_property): reset-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@400A0000/uda1380@18
arch/arm/boot/dts/lpc3250-phy3250.dtb: Warning (gpios_property): power-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@400A0000/uda1380@18
arch/arm/boot/dts/lpc3250-ea3250.dtb: Warning (gpios_property): reset-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@400A0000/uda1380@18
arch/arm/boot/dts/lpc3250-ea3250.dtb: Warning (gpios_property): power-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@400A0000/uda1380@18

It looks like the nodes are written for a different binding that combines
the GPIO number into a single number rather than a bank/number pair.
I found the right numbers on stackexchange.com, so this patch fixes
the warning and has a reasonable chance of getting things to actually
work.

Cc: stable@vger.kernel.org
Link: https://unix.stackexchange.com/questions/59497/alsa-asoc-how-to-correctly-load-devices-drivers/62217#62217
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-15 13:58:05 +01:00
Patrice Chotard
7ac1f59c09 ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property
The GPIO polarity is missing in the hdmi,hpd-gpio property, this
fixes the following DT warnings:

arch/arm/boot/dts/stih410-b2120.dtb: Warning (gpios_property): hdmi,hpd-gpio property
size (8) too small for cell size 2 in /soc/sti-display-subsystem/sti-hdmi@8d04000

arch/arm/boot/dts/stih407-b2120.dtb: Warning (gpios_property): hdmi,hpd-gpio property
size (8) too small for cell size 2 in /soc/sti-display-subsystem/sti-hdmi@8d04000

arch/arm/boot/dts/stih410-b2260.dtb: Warning (gpios_property): hdmi,hpd-gpio property
size (8) too small for cell size 2 in /soc/sti-display-subsystem/sti-hdmi@8d04000

[arnd: marked Cc:stable since this warning shows up with the latest dtc
       by default, and is more likely to actually cause problems than the
       other patches from this series]

Cc: stable@vger.kernel.org
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-01-15 13:56:14 +01:00
Christoph Hellwig
19dca8c0ef dma-direct: make dma_direct_{alloc,free} available to other implementations
So that they don't need to indirect through the operation vector.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
2018-01-15 09:35:14 +01:00
Christoph Hellwig
002e67454f dma-direct: rename dma_noop to dma_direct
The trivial direct mapping implementation already does a virtual to
physical translation which isn't strictly a noop, and will soon learn
to do non-direct but linear physical to dma translations through the
device offset and a few small tricks.  Rename it to a better fitting
name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
2018-01-15 09:35:06 +01:00
Ravikumar Kattekola
64c358b3bd ARM: dts: dra7: Reduce shut down temperature of non-cpu thermal zones
On dra7, as per TRM, the HW shutdown (TSHUT) temperature is hardcoded
to 123C and cannot be modified by SW. This means that when the temperature
reaches 123C HW asserts TSHUT output which signals a warm reset.
The reset is held until the temperature goes below the TSHUT low (105C).

While in SW, the thermal driver continuously monitors current temperature
and takes decisions based on whether it reached an alert or a critical point.
The intention of setting a SW critical point is to prevent force reset by HW
and instead do an orderly_poweroff(). But if the SW critical temperature is
greater than or equal to that of HW then it defeats the purpose. To address
this and let SW take action before HW does keep the SW critical temperature
less than HW TSHUT value.

The value for SW critical temperature was chosen as 120C just to ensure
we give SW sometime before HW catches up.

Document reference
SPRUI30C – DRA75x, DRA74x Technical Reference Manual - November 2016
SPRUHZ6H - AM572x Technical Reference Manual - November 2016

Tested on:
DRA75x PG 2.0 Rev H EVM

Signed-off-by: Ravikumar Kattekola <rk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-01-12 15:47:25 -08:00
Ivaylo Dimitrov
cbe92b02b6 ARM: dts: n900: Add aliases for lcd and tvout displays
When both lcd and tv are enabled, the order in which they will be probed is
unknown, so it might happen (and it happens in reality) that tv is
configured as display0 and lcd as display1, which results in nothing
displayed on lcd, as display1 is disabled by default.

Fix that by providing correct aliases for lcd and tv

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-01-12 15:47:18 -08:00
Tony Lindgren
e14d7e5320 ARM: dts: Update ti-sysc data for existing users
Let's update the existing users with features and clock data as
specified in the binding. This is currently the smartreflex for most
part, and also few omap4 modules with no child device driver like
mcasp, abe iss and gfx.

Note that we had few mistakes that did not get noticed as we're still
probing the SmartReflex driver with legacy platform data and using
"ti,hwmods" legacy property for ti-sysc driver.

So let's fix the omap4 and dra7 smartreflex registers as there is no
no revision register.

And on omap4, the mcasp module has a revision register according to
the TRM.

And for omap34xx we need a different configuration compared to 36xx.
And the smartreflex on 3517 we've always kept disabled so let's
remove any references to it.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-01-12 15:16:57 -08:00
Tony Lindgren
7d9bfdac31 ARM: dts: Fix smartreflex compatible for omap3 shared mpu-iva instance
The smartreflex instance for mpu and iva is shared. Let's fix this as I've
already gotten confused myself few times wondering where the mpu instance
is. Note that we are still probing the driver using platform data so this
change is safe to do.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-01-12 15:15:56 -08:00
Eric W. Biederman
7771c66457 signal/arm: Document conflicts with SI_USER and SIGFPE
Setting si_code to 0 results in a userspace seeing an si_code of 0.
This is the same si_code as SI_USER.  Posix and common sense requires
that SI_USER not be a signal specific si_code.  As such this use of 0
for the si_code is a pretty horribly broken ABI.

Further use of si_code == 0 guaranteed that copy_siginfo_to_user saw a
value of __SI_KILL and now sees a value of SIL_KILL with the result
that uid and pid fields are copied and which might copying the si_addr
field by accident but certainly not by design.  Making this a very
flakey implementation.

Utilizing FPE_FIXME, siginfo_layout will now return SIL_FAULT and the
appropriate fields will be reliably copied.

Possible ABI fixes includee:
- Send the signal without siginfo
- Don't generate a signal
- Possibly assign and use an appropriate si_code
- Don't handle cases which can't happen

Cc: Russell King <rmk@flint.arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Ref: 451436b7bbb2 ("[ARM] Add support code for ARM hardware vector floating point")
History Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2018-01-12 14:21:05 -06:00
Ladislav Michl
2514830b8b ARM: OMAP2+: Remove gpmc-onenand
As OneNAND driver is now using devicetree gpmc-onenand and its
platform data is unused and can be removed.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 16:41:15 +01:00
Ladislav Michl
d36005d4a2 ARM: dts: omap3-igep: Update onenand node timings
Update node timings to be compatible with actual chip used -
gpmc_cs_show_timings utilized to dump values.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 15:34:06 +01:00
Ladislav Michl
396744b76a ARM: dts: OMAP2+: Add compatible property to onenand node
OMAP onenand nodes are missing compatible property, add it.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 15:34:04 +01:00
Miquel Raynal
dd53373439 mtd: nand: use reworked NAND controller driver with Marvell EBU SoCs
Choose to compile and embed marvell_nand.c as NAND controller driver
instead of the legacy pxa3xx_nand.c for platforms with Marvell EBU
SoCs.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 15:17:07 +01:00
Eric Biggers
a208fa8f33 crypto: hash - annotate algorithms taking optional key
We need to consistently enforce that keyed hashes cannot be used without
setting the key.  To do this we need a reliable way to determine whether
a given hash algorithm is keyed or not.  AF_ALG currently does this by
checking for the presence of a ->setkey() method.  However, this is
actually slightly broken because the CRC-32 algorithms implement
->setkey() but can also be used without a key.  (The CRC-32 "key" is not
actually a cryptographic key but rather represents the initial state.
If not overridden, then a default initial state is used.)

Prepare to fix this by introducing a flag CRYPTO_ALG_OPTIONAL_KEY which
indicates that the algorithm has a ->setkey() method, but it is not
required to be called.  Then set it on all the CRC-32 algorithms.

The same also applies to the Adler-32 implementation in Lustre.

Also, the cryptd and mcryptd templates have to pass through the flag
from their underlying algorithm.

Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-01-12 23:03:35 +11:00
Viresh Kumar
f8975cb1b8 arm: spear13xx: Fix spics gpio controller's warning
This fixes the following warning by also sending the flags argument for
gpio controllers:

Property 'cs-gpios', cell 6 is not a phandle reference in
/ahb/apb/spi@e0100000

Fixes: 8113ba917d ("ARM: SPEAr: DT: Update device nodes")
Cc: stable@vger.kernel.org # v3.8+
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 18:07:38 -08:00
Viresh Kumar
cdd1040991 arm: spear13xx: Fix dmas cells
The "dmas" cells for the designware DMA controller need to have only 3
properties apart from the phandle: request line, src master and
destination master. But the commit 6e8887f60f updated it incorrectly
while moving from platform code to DT. Fix it.

Cc: stable@vger.kernel.org # v3.10+
Fixes: 6e8887f60f ("ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 18:07:19 -08:00
Viresh Kumar
6ffb5b4f24 arm: spear600: Add missing interrupt-parent of rtc
The interrupt-parent of rtc was missing, add it.

Fixes: 8113ba917d ("ARM: SPEAr: DT: Update device nodes")
Cc: stable@vger.kernel.org # v3.8+
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 18:06:43 -08:00
Olof Johansson
60050d6764 Samsung mach/soc changes for v4.16
Add SPDX license identifiers.
 -----BEGIN PGP SIGNATURE-----
 
 iQItBAABCAAXBQJaUfYWEBxrcnprQGtlcm5lbC5vcmcACgkQwTdm5oaLg9cpxQ//
 Xx2Fdbk4OAE85mG+tG3gBVKbSaTvm4+2nO+tCNWWbgYfa5SmGCDviV2DjbxXqn6e
 Yc1lRNOCvbrdtLG4RjYaLT6hGmru7iD1cIaaLendPG5o8wYh1gkfoJIml0dyKSY2
 AbgBXY9R8R5hNh/9W7sM0dofrlC6WuBCEI1N1LX8qLqiuDvpICIAbQmQZrrgVMvg
 Acwo1F6586aOfZdEyiXlpJkjvucGkglLrmpL5rjT092QyOZmK9eWDX+4uq0rroWN
 On8IvvfWUNU3IHiUE2ZP8cxKmkLlsqQJUvkzW8w0ZOmVtzP0stveaL6hC293c/Uj
 hH8+CjoLCgQEMauTLyT/mPGNPeYNdL9q20KeUDoIRzAGtEa6ANPMDFWf+YnGQQNK
 E3JQ9na48ORfKk/GGAtYi25VLZWHBCIwK7YlH/3K1jKn2wxdoY2ScWpsKUAxNcWm
 KwS1YLeNAKViwKSQ73m/Ujs9PNrhaiZlBnptop5JFOYoPxxgKlE36/fiGlzK4XO+
 q4/vviBweDiSLr5vhimCpkcd/BHoeXn+XQUTBt+jEX6TUURdfGqFYHiuqxbRXJQK
 k3UegTMXJfoqomokCoMDcbJV9N3BEtp81sWO+fX4DyFHJ8o4Fm6iuFgOtoc8S78z
 WrbgbilGiAz/OfwDOSMSH2LEdLxB5tSwArK57NVpCSY=
 =Z3Aa
 -----END PGP SIGNATURE-----

Merge tag 'samsung-soc-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc

Samsung mach/soc changes for v4.16

Add SPDX license identifiers.

* tag 'samsung-soc-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: SAMSUNG: Add SPDX license identifiers
  ARM: S5PV210: Add SPDX license identifiers
  ARM: S3C64XX: Add SPDX license identifiers
  ARM: S3C24XX: Add SPDX license identifiers
  ARM: EXYNOS: Add SPDX license identifiers

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 17:39:04 -08:00
Olof Johansson
1753ee2d40 Samsung DTS ARM changes for 4.16, part 2
1. Add SPDX license identifiers.
 2. Properly fix DTC warning for PMU/RTC interrupts on Exynos5410.
 -----BEGIN PGP SIGNATURE-----
 
 iQItBAABCAAXBQJaUfWaEBxrcnprQGtlcm5lbC5vcmcACgkQwTdm5oaLg9dJEQ/8
 DFTi2EIAmEhHsdC4zwMgv07RkQxmcqyPIkE+UpHWv8Fif+0NDexp0bsBA8TFLKC8
 PxHkQOo2BRmoHnBTquCHYqdC3fy3ew8wtFuR2C9ZuswNm+NVW9TzkX8JCXz6h/8S
 WMSXplMW/123HJfdTMRDUby50civa59oeAXnSHsUitdGz7sqYdx0vvTVoTaz+XXX
 xxnUU8n8qN8rc7JBcgJbmrqt2+peP8oCDKSDP1Lp4wgYfu0bIHC0n11IrBWdt3n0
 hFH1CsLl2LtcX0lpPeyjlAjL7Nif/o2Fs+CsJIjsSe+dwFcW03dNjJ9Wa+XAahjQ
 MBKK7f9bxdAn4KcGUW1jexxqq1JbTSla8jPejglqafEyCJeYy+9GFjTR/8VtOCRx
 nTbUAOqkOfAe/FBk8nuM5jEKShZ9ZyEHLOOUAWAm0IdItAIs6jzrMhCxSf2y0yLL
 Yjv0M2mUXtuUHWZA//yHr+JiPz0yaojSe7yjeYCOpZhZAThvpc6fjuhpQhlJzULF
 4sEpdOpxN3QVbHkMk3CxdGT6FTTDLzbiyKJeCTwl10xYG93Uq+tOAiG7e3UDbHvf
 LbQ0xOlfcEPKe8kgYYXbINYh0rWPy9GAQ4lQVd0q2eXzWPMYZBDsWTS90Tvx44/O
 nsMNA3c86nQn5N5+tZWkD/TdfhYePj4olbZPFFQmQkM=
 =U4Ln
 -----END PGP SIGNATURE-----

Merge tag 'samsung-dt-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Samsung DTS ARM changes for 4.16, part 2

1. Add SPDX license identifiers.
2. Properly fix DTC warning for PMU/RTC interrupts on Exynos5410.

* tag 'samsung-dt-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: fix RTC interrupt for exynos5410
  Revert "ARM: dts: exynos: Add missing interrupt-controller properties to Exynos5410 PMU"
  ARM: dts: s5pv210: Add SPDX license identifiers
  ARM: dts: s3c64xx: Add SPDX license identifiers
  ARM: dts: s3c24xx: Add SPDX license identifiers
  ARM: dts: exynos: Add SPDX license identifiers

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 17:37:38 -08:00
Olof Johansson
bd730bfd10 Allwinner fixes for 4.15, round 2
One fix that fixes the display pipeline description in the device tree
 for the A10 and A20 SoCs. This description was introduced in 4.15-rc1
 with a mismatch in the graph remote endpoints, which would likely
 result in the driver misinterpreting how the individual components fit
 together.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCgAsFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAlpS6tsOHHdlbnNAY3Np
 ZS5vcmcACgkQOJpUIZwPJDA6bg//Q91/w8bsTlUWU/MIn1UTiCkGwcKKrZ2345rx
 x+tAf2/4Vpj0qBaU4Zj0aPha47kleUE7D42huzSlaf74FZlEIh1mOrNghApKGEFi
 oA+ioCmev+sJaoQLzwo0a8eV5ZUXv9XtW31szGhFiBnlIhbq8hdyfS9y8NMNAa55
 E1KHphydxaxM3kT8PKIxFsT2A29af7y4g4I9DquHYKtpBXG59Kq1OCIj/bluk/d5
 3T8J0TubcbRUGQEIjr8cn6CETt4/d839zzIGUQiio9+o5KK462U+OQ0SRtSuDUuK
 TAB+fRVNhk1mzujizFPpNsKvi05uoksZDaKBt/cCXxVGWLkg0dFQ89sMzgJgj5c1
 L231W2oLoQ2WIu50gtJ+sMmReGR3jmk4qsP7LcwiKEbxz3ahkUr6zmysW95CPega
 /wUKnrtaZNJ+3+eJ6QrGQoWSfOJcWAIgUDrnmdn83bOHc2Sc9PXudkfSrc6sIY5r
 V8mFPtIjysRTyO5qqR5PMJqoW8En5BzY4lRuG6qqFTjOjCdZYti57b4DM90yCJxK
 nfOpwJLdCLnKENECr7ZOiTpnE1TkD/hTcopIYjOpmUvr7gLRXUypMa1zmNoQbjEB
 VIneTYrMYzXZ2q8CJ1gjwl4Kh6kxYRoTHLfHAxzqlhzhwXetVU4blAIt0ddACwRL
 noQjLBQ=
 =m59a
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-fixes-for-4.15-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes

Allwinner fixes for 4.15, round 2

One fix that fixes the display pipeline description in the device tree
for the A10 and A20 SoCs. This description was introduced in 4.15-rc1
with a mismatch in the graph remote endpoints, which would likely
result in the driver misinterpreting how the individual components fit
together.

* tag 'sunxi-fixes-for-4.15-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  ARM: dts: sun[47]i: Fix display backend 1 output to TCON0 remote endpoint

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 16:59:50 -08:00
Olof Johansson
9ddd0c131a mvebu fixess for 4.15 (part 1)
2 device tree related fixes fixing 2 issues:
  - broken pinctrl support since 4.11 on OpenBlocks A7
  - implicit clock dependency making the kernel hang if the Xenon sdhci
    module was loaded before the mvpp2 Ethernet support (for this one
    the driver had to be fixed which was done in v4.14)
 -----BEGIN PGP SIGNATURE-----
 
 iIEEABECAEEWIQQYqXDMF3cvSLY+g9cLBhiOFHI71QUCWk+glCMcZ3JlZ29yeS5j
 bGVtZW50QGZyZWUtZWxlY3Ryb25zLmNvbQAKCRALBhiOFHI71Zt+AJ9ozVoJfwdf
 79od8wlcB4PUvHb6FgCgqkH7FXqfkpHLdFYm8E9GRlj6nVY=
 =9vZv
 -----END PGP SIGNATURE-----

Merge tag 'mvebu-fixes-4.15-1' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixess for 4.15 (part 1)

2 device tree related fixes fixing 2 issues:
 - broken pinctrl support since 4.11 on OpenBlocks A7
 - implicit clock dependency making the kernel hang if the Xenon sdhci
   module was loaded before the mvpp2 Ethernet support (for this one
   the driver had to be fixed which was done in v4.14)

* tag 'mvebu-fixes-4.15-1' of git://git.infradead.org/linux-mvebu:
  ARM64: dts: marvell: armada-cp110: Fix clock resources for various node
  ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 16:58:41 -08:00
Olof Johansson
52334750f4 A DT warning fix for W=1 warning message.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJaT4p1AAoJEGFBu2jqvgRN0UgP/1bsqNAQEgKGgYn+C3VLFV7f
 DZ8nPzhNHTT6RnB347RG8o6/bOvaomyyuBoX1EynFKuKLdnRZpw3/gJ92/5H43uK
 iX/jeToPZQZUvZnMVpgKZgsqphkm4agmCBSBK48phUNkcuKKb/flEYsLMOWgC0F8
 CFYZFttrkBlCSbzsK7NtNwyMENLGwGILyPMpGf2vRFvotJgAYNxQtZjEQuUo41uW
 kU6Kgh//ZHXQC4cN6cHv9WXf3CRMdmxncjZIi9cit+sFqXp/kSvWw5fw+9L8MJpi
 x+zQSMdzftH6m7Tn7pM/kRvVfOc1xcIluQ0RcOpCCFuU3KHJNpFt7MOMiogGHVPP
 6p6NBhZIj4K0/pz0f3pR8va79kpUAnC3sl8FCBevdW+aBm19oKvW0fXtUer+gmaj
 nLo4BZ7z+Lk50FtZa4u1gvjE3ucWTmhQS3UkFNXcOymfrg7ff43Xt1xjS6zQRJZb
 TbP6MtmR4AGG3nPmaUaq3J0bWQtqMj+Vj07WQFjEqaxOs47ls5XNd9phhhGOqUz2
 8q1N0hiDiYrzY8Ds7/2JkVJ8/sj6bPvN/7cAnaYe4dn82oYpvIyeTMK6w5nQJZ/j
 RmUeJEVKVQLpuozKARsfDqk6jFgcQvyfniQfddcsJW7AcqRL6xeZO04HH8hfigpk
 m5ncpmgj0a39PwJA71eK
 =Cjvs
 -----END PGP SIGNATURE-----

Merge tag 'davinci-for-v4.16/dt' of https://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes

A DT warning fix for W=1 warning message.

* tag 'davinci-for-v4.16/dt' of https://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: dts: da850-lcdk: Remove leading 0x and 0s from unit address

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 16:58:12 -08:00
Olof Johansson
d0a8532e1e Allwinner DT changes for 4.16, bis
A few improvements to our DT support, with:
   - basic DRM support for the A83t
   - simplefb support for the H3 and H5 SoCs
   - One fix for the USB ethernet on the Orange Pi R1
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE0VqZU19dR2zEVaqr0rTAlCFNr3QFAlpPTzIACgkQ0rTAlCFN
 r3SwvRAAkG4Idi3wsORz0+RwIFLHeiPNzE4iGrnwAsX1RhlYn17LHcGA2xBkV5d9
 Khk1AoOKkhpNKJ11e1UFffU0jMeibDXaWEbcE3fhLP6X3wnkuspOZuSCsk94C+oU
 xLOKVTy9Kw+yQPvOzqWmiI84YCSkH1SGw1mPOnTUD2Nz7Soux9I6hr3AO6x50pIW
 5dq9tbxNN53YARc28ydOFtChnR2NTPQrLnGefU3eFjMp4F1xcEZq54TN3kBbF5U2
 x7rbDunDh13EI8Qhi1jzgnKedXkkSFc3Zm0IhnjzEVVms9TS0Fz0b5KDT8RG/f9+
 O3hHXcsvCnxadULcq4xEWB4WV3Xjmt8x6Y8RUlkYFgBfA2iOJcqd2jJbWB98iaVB
 Ce7w+48yBWVkG35vGIGpmO/TiY8czicveFy2T98zDmHPiwzCNn3+0XExDQsgklt7
 gR/8CWCqVDhK0XnZadntkZuq/bXOJzVQ2BpnZXIC+cGz1GjmAGR9Ey5l2VusBZLU
 zEhTGbyBbfaJikR+4sRxkPx7DFkvjXbM/Y/cEHgD0CqZboynFLgPiewHTRcCTYWb
 4qaBI660jYINHetQWdCG2Iz3gjAjaJEyEBtK61BDL9hX4del2hVwvq7t7F7NMV6L
 EZFCDDUOfky56gKCYSXPWU/S6MX5hzIw8Y5/csQVMQCOoOkqe7o=
 =bDG2
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-dt-for-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt

Allwinner DT changes for 4.16, bis

A few improvements to our DT support, with:
  - basic DRM support for the A83t
  - simplefb support for the H3 and H5 SoCs
  - One fix for the USB ethernet on the Orange Pi R1

* tag 'sunxi-dt-for-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  ARM: dts: sun8i: a711: Enable the LCD
  ARM: dts: sun8i: a83t: Add LVDS pins group
  ARM: dts: sun8i: a83t: Enable the PWM
  ARM: dts: sun8i: a83t: Add display pipeline
  ARM: sunxi: h3/h5: add simplefb nodes
  arm64: allwinner: h5: add compatible string for DE2 CCU
  ARM: sun8i: h3/h5: add DE2 CCU device node for H3
  dt-bindings: simplefb-sunxi: add pipelines for DE2
  ARM: dts: sun8i: fix USB Ethernet of Orange Pi R1

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-11 16:54:36 -08:00
Thomas Gleixner
80023aea83 irqchip updates for 4.16
- Fix a GICv3 issue when parsing ACPI entries for disabled CPUs
 - Driver for the MIPS Goldfish virtual platform
 - Small fixlet for the ompic driver
 - Interrupt polatiry support for the Raspberry Pi irqchip
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCAAzFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAlpWYKkVHG1hcmMuenlu
 Z2llckBhcm0uY29tAAoJECPQ0LrRPXpDJ+MQAKIoE5YA5AydC64kAyQyuKcPb5S4
 N/9R/9DoPDbYLc9SY+1I5ygHGzorq7zx/PWJmamNMjknwk0xhfuBaS5smE/m6H+1
 dCmgTM3fknEMd5HfLIwpAp/L1Pmq9KYqMtxounSabduWnVMnIqc+7OGAj5fZE7B1
 IPTh8xQQ4HPGR3MBYa/754OIBe8Uprb2KGrZugU2Pz8WPAd9NDdKxM84jCwQ9r58
 4TFesdC4iC1J83Qr1JmxiBdGOnfhi3cq7wfmRLnTmBeRlhXqYHuzRxPQmjbKtcWk
 yzFj3OhSLB2KoV7x4nXaaIcKrwETJCj+GThlK8/ZRZ7lu0irBnmBNomFm4RwwRV4
 MkqItMqvNAwd+enq0LMAxBScUt/3EEYUJxV6xA6RBfluKPlZMlcyfGi+pS72fNho
 0SiKSzokaiTt/XLBfT1s0NI1ASkdPD5Xqo7yAzxDN4O8SzLY71bkFLrQB3ErL/gr
 50FYOsRv24e9a6NrSmtw/7z1Os6mY6QEB6lcSi7A0/+MmudU6Kk0mTk5fRf92+rl
 vqcB7bkkZrMSSsFPJkrBqoPZ+O9R6yqZudt29+n2G9BNWMea/oOCWnz6oYZh0HvX
 DdE3YQUQBJj2ZGc0CG8XlWY94sJLsS8n99rLxXDkAJ7aQU0uT4g8hbxJG0nDXJfu
 d7J2FO7LTtaW4JKo
 =QFqN
 -----END PGP SIGNATURE-----

Merge tag 'irqchip-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates for 4.16 from Marc Zyngier

- Fix a GICv3 issue when parsing ACPI entries for disabled CPUs
- Driver for the MIPS Goldfish virtual platform
- Small fixlet for the ompic driver
- Interrupt polarity support for the Raspberry Pi irqchip
2018-01-10 21:04:21 +01:00
Olof Johansson
adb319a01a i.MX defconfig updates for 4.16:
- Enable CPU_FREQ_STAT for cpufreq transtion statistics support.
  - Enable SRTC driver RTC_DRV_MXC_V2 for i.MX53.
  - Turn on a few drivers useful for DART-MX6 SoM support, SERDEV
    bluetooth, SERIAL_DEV_BUS, WL18XX, and DEFAULT_ON LED Trigger.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJaUDsIAAoJEFBXWFqHsHzORfIH/RQf/Kg7HHFd78qk7TVIbfIK
 uH/YspvDReV5cDdiJIoTQiAZTC6MvdlGtG/PevrQHA6F7jjJdRNhwS6VT1pCaidg
 pS52OSWIUqFrYdTPuBCyF/tS7lPsiKm74YZzePBUKBz9EEhsTs9bAcL4J6WGkPAN
 GcIxe0PG7/SzFQFJMomND4Of2Idru4HP5OHlJFY2K68rVgpdn7DA3+cA2ChB8Ajm
 vR9JJO58DwPpNtXf1KiyMur+srKsSn1bvJdu7qvYReNYPHxc6semKo82KgznmNfu
 tSfPcDpKOyvYtSEa02TSV5Y1MTtmgTSFcrwh3/SzGZ7qurbkQtS4Cc1YGo5q47A=
 =5J9f
 -----END PGP SIGNATURE-----

Merge tag 'imx-defconfig-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

i.MX defconfig updates for 4.16:
 - Enable CPU_FREQ_STAT for cpufreq transtion statistics support.
 - Enable SRTC driver RTC_DRV_MXC_V2 for i.MX53.
 - Turn on a few drivers useful for DART-MX6 SoM support, SERDEV
   bluetooth, SERIAL_DEV_BUS, WL18XX, and DEFAULT_ON LED Trigger.

* tag 'imx-defconfig-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx_v6_v7_defconfig: enable CONFIG_CPU_FREQ_STAT
  ARM: imx_v6_v7_defconfig: enable RTC_DRV_MXC_V2
  ARM: imx_v6_v7_defconfig: Add missing config for DART-MX6 SoM

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-01-10 11:32:14 -08:00
Christoph Hellwig
b49efd7624 dma-mapping: move dma_mark_clean to dma-direct.h
And unlike the other helpers we don't require a <asm/dma-direct.h> as
this helper is a special case for ia64 only, and this keeps it as
simple as possible.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-01-10 16:41:12 +01:00
Christoph Hellwig
ea8c64ace8 dma-mapping: move swiotlb arch helpers to a new header
phys_to_dma, dma_to_phys and dma_capable are helpers published by
architecture code for use of swiotlb and xen-swiotlb only.  Drivers are
not supposed to use these directly, but use the DMA API instead.

Move these to a new asm/dma-direct.h helper, included by a
linux/dma-direct.h wrapper that provides the default linear mapping
unless the architecture wants to override it.

In the MIPS case the existing dma-coherent.h is reused for now as
untangling it will take a bit of work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Robin Murphy <robin.murphy@arm.com>
2018-01-10 16:40:54 +01:00
Anson Huang
c9619bb293 ARM: dts: imx6ul: add 696MHz operating point
Add 696MHz operating point according to datasheet
(Rev. 0, 12/2015).

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-01-10 01:14:21 +01:00
David Howells
0500871f21 Construct init thread stack in the linker script rather than by union
Construct the init thread stack in the linker script rather than doing it
by means of a union so that ia64's init_task.c can be got rid of.

The following symbols are then made available from INIT_TASK_DATA() linker
script macro:

	init_thread_union
	init_stack

INIT_TASK_DATA() also expands the region to THREAD_SIZE to accommodate the
size of the init stack.  init_thread_union is given its own section so that
it can be placed into the stack space in the right order.  I'm assuming
that the ia64 ordering is correct and that the task_struct is first and the
thread_info second.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Tested-by: Will Deacon <will.deacon@arm.com> (arm64)
Tested-by: Palmer Dabbelt <palmer@sifive.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
2018-01-09 23:21:02 +00:00
Greg Kroah-Hartman
9836c09442 Revert "ARM: dts: r7s72100: add USB device to device tree"
This reverts commit 8a99b6ad4d.

Geert doesn't want it going in through the USB tree, ok, whatever...

Cc: Chris Brandt <chris.brandt@renesas.com>
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09 19:48:56 +01:00
David S. Miller
a0ce093180 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
Joe Perches
c828a89203 treewide: Use DEVICE_ATTR_RO
Convert DEVICE_ATTR uses to DEVICE_ATTR_RO where possible.

Done with perl script:

$ git grep -w --name-only DEVICE_ATTR | \
  xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(?:\s*S_IRUGO\s*|\s*0444\s*)\)?\s*,\s*\1_show\s*,\s*NULL\s*\)/DEVICE_ATTR_RO(\1)/g; print;}'

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09 16:34:34 +01:00
Chris Brandt
8a99b6ad4d ARM: dts: r7s72100: add USB device to device tree
Add USB device support.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09 16:18:50 +01:00
David Lechner
102402a73b ARM: da8xx: remove con_id from USB clocks
There is only one clock each for "musb-da8xx" and "ohci-da8xx", so we
do not the the con_id. Removing them  will also prevent needing an
unnecessary device tree property when device tree bindings are added
for clocks.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09 16:15:20 +01:00
Marc Zyngier
6840bdd73d arm64: KVM: Use per-CPU vector when BP hardening is enabled
Now that we have per-CPU vectors, let's plug then in the KVM/arm64 code.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-01-08 18:46:56 +00:00
Marc Zyngier
17ab9d57de KVM: arm/arm64: Drop vcpu parameter from guest cache maintenance operartions
The vcpu parameter isn't used for anything, and gets in the way of
further cleanups. Let's get rid of it.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2018-01-08 15:20:46 +01:00