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38507 Commits

Author SHA1 Message Date
Stephen Boyd fea0b0850a Merge branches 'clk-typo', 'clk-json-schema', 'clk-mtk-2712-eco' and 'clk-rockchip' into clk-next 
- Convert a few clk bindings to JSON schema format
 - 3rd ECO fix for Mediatek MT2712 SoCs

* clk-typo:
  clk: samsung: fix typo

* clk-json-schema:
  dt-bindings: clock: Convert fixed-factor-clock to json-schema
  dt-bindings: clock: Convert fixed-clock binding to json-schema

* clk-mtk-2712-eco:
  clk: mediatek: update clock driver of MT2712
  dt-bindings: clock: add clock for MT2712

* clk-rockchip:
  clk: rockchip: add CLK_SET_RATE_PARENT for rk3066 lcdc dclks
  clk: rockchip: fix frac settings of GPLL clock for rk3328
 2019-03-08 10:34:22 -08:00
Stephen Boyd 75f486c015 Merge branches 'clk-qcom-msm8998', 'clk-fractional-parent', 'clk-x86-mv' and 'clk-SA-fixes' into clk-next 
- Updates for qcom MSM8998 GCC clks
 - qcom MSM8998 RPM managed clks
 - Random static analysis fixes for clk drivers

* clk-qcom-msm8998:
  clk: qcom: Make common clk_hw registrations
  clk: qcom: smd: Add support for MSM8998 rpm clocks
  clk: qcom: Skip halt checks on gcc_usb3_phy_pipe_clk for 8998
  clk: qcom: Add missing freq for usb30_master_clk on 8998
  clk: qcom: Add CLK_SET_RATE_PARENT for 8998 branch clocks

* clk-fractional-parent:
  clk: fractional-divider: check parent rate only if flag is set

* clk-x86-mv:
  clk: x86: Move clk-lpss.h to platform_data/x86

* clk-SA-fixes:
  clk: mediatek: fix platform_no_drv_owner.cocci warnings
  clk: tegra: dfll: Fix debugfs_simple_attr.cocci warnings
  clk: qoriq: Improve an error message
 2019-03-08 10:29:15 -08:00
Stephen Boyd 461ea6ab2c Merge branches 'clk-qcom-rpmh', 'clk-gpio-sleep', 'clk-stm32mp1', 'clk-qcom-qcs404' and 'clk-actions-s500' into clk-next 
- IPA clk support on Qualcomm RPMh clk controllers
 - Support sleeping gpios in clk-gpio type
 - Minor fixes for STM32MP1 clk driver (parents, critical flag, etc.)
 - Actions Semi S500 SoC clk support

* clk-qcom-rpmh:
  clk: qcom: clk-rpmh: Add IPA clock support

* clk-gpio-sleep:
  clk: clk-gpio: add support for sleeping GPIOs in gpio-gate-clk

* clk-stm32mp1:
  dt-bindings: clock: remove unused definition for stm32mp1
  clk: stm32mp1: fix bit width of hse_rtc divider
  clk: stm32mp1: remove unnecessary CLK_DIVIDER_ALLOW_ZERO flag
  clk: stm32mp1: fix HSI divider flag
  clk: stm32mp1: fix mcu divider table
  clk: stm32mp1: set ck_csi as critical clock
  clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocks
  clk: stm32mp1: parent clocks update

* clk-qcom-qcs404:
  clk: qcom: gcc-qcs404: Add cfg_offset for blsp1_uart3 clock
  clk: qcom: clk-rcg2: Introduce a cfg offset for RCGs
  clk: qcom: remove empty lines in clk-rcg.h

* clk-actions-s500:
  clk: actions: Add clock driver for S500 SoC
  dt-bindings: clock: Add DT bindings for Actions Semi S500 CMU
  clk: actions: Add configurable PLL delay
 2019-03-08 10:27:52 -08:00
Stephen Boyd e7faa095cb Merge branches 'clk-imx', 'clk-samsung', 'clk-ti', 'clk-uniphier-gear' and 'clk-mmp2-lcdc' into clk-next 
- Split LCDC into two clks on the Marvell MMP2 SoC

* clk-imx:
  clk: imx8mq: add GPIO clocks to clock tree
  clk: imx: Refactor entire sccg pll clk
  clk: imx: scu: add cpu frequency scaling support
  clk: imx: imx8mm: Mark init function __init
  clk: imx8mq: Add the missing ARM clock
  dt-bindings: imx8mq-clock: Add the missing ARM clock
  clk: imx: imx8mq: Fix the rate propagation for arm pll
  clk: imx8mq: Add support for the CLKO1 clock
  clk: imx8mq: Fix the CLKO2 source select list
  clk: imx8mq: Add missing M4 clocks
  clk: imx: Add clock driver support for imx8mm
  dt-bindings: imx: Add clock binding doc for imx8mm
  clk: imx: Add PLLs driver for imx8mm soc
  clk: imx5: add imx5_SCC2_IPG_GATE
  clk: imx: scu: add set parent support
  clk: imx: scu: add fallback compatible string support
  clk: imx8mq: Make parent names arrays const pointers
  clk: imx: Make parents const pointer in mux wrappers
  clk: imx: Make parent_names const pointer in composite-8m

* clk-samsung:
  clk: samsung: s3c2443: Mark expected switch fall-through
  clk: samsung: exynos5: Fix kfree() of const memory on setting driver_override
  clk: samsung: exynos5: Fix possible NULL pointer exception on platform_device_alloc() failure
  clk: samsung: exynos5433: Add selected IMEM clocks
  clk: samsung: dt-bindings: Document Exynos5433 IMEM CMU
  clk: samsung: exynos5433: Fix name typo in sssx
  clk: samsung: exynos5433: Fix definition of CLK_ACLK_IMEM_{200, 266} clocks
  clk: samsung: dt-bindings: Add Exynos5433 IMEM CMU clock IDs

* clk-ti:
  clk: clk-twl6040: Fix imprecise external abort for pdmclk
  ARM: OMAP2+: hwmod: disable ick autoidling when a hwmod requires that
  clk: ti: check clock type before doing autoidle ops
  clk: ti: add a usecount for autoidle
  clk: ti: generalize the init sequence of clk_hw_omap clocks
  clk: ti: remove usage of CLK_IS_BASIC
  clk: ti: add new API for checking if a provided clock is an OMAP clock
  clk: ti: move clk_hw_omap list handling under generic part of the driver

* clk-uniphier-gear:
  clk: uniphier: Fix update register for CPU-gear

* clk-mmp2-lcdc:
  clk: mmp2: separate LCDC peripheral clk form the display clock
  dt-bindings: marvell,mmp2: Add clock id for the LCDC clock
 2019-03-08 10:27:40 -08:00
Stephen Boyd 3f8e7e7247 Merge branches 'clk-optional', 'clk-devm-clkdev-register', 'clk-allwinner', 'clk-meson' and 'clk-renesas' into clk-next 
- Add a {devm_}clk_get_optional() API
 - Add devm_clk_hw_register_clkdev() API to manage clkdev lookups

* clk-optional:
  clk: Add (devm_)clk_get_optional() functions
  clk: Add comment about __of_clk_get_by_name() error values

* clk-devm-clkdev-register:
  clk: clk-st: avoid clkdev lookup leak at remove
  clk: clk-max77686: Clean clkdev lookup leak and use devm
  clkdev: add managed clkdev lookup registration

* clk-allwinner:
  clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it

* clk-meson: (22 commits)
  clk: meson: meson8b: fix the naming of the APB clocks
  dt-bindings: clock: meson8b: add APB clock definition
  clk: meson: Add G12A AO Clock + Reset Controller
  dt-bindings: clk: add G12A AO Clock and Reset Bindings
  clk: meson: factorise meson64 peripheral clock controller drivers
  clk: meson: g12a: add peripheral clock controller
  dt-bindings: clk: meson: add g12a periph clock controller bindings
  clk: meson: pll: update driver for the g12a
  clk: meson: rework and clean drivers dependencies
  clk: meson: axg-audio does not require syscon
  clk: meson: use CONFIG_ARCH_MESON to enter meson clk directory
  clk: export some clk_hw function symbols for module drivers
  clk: meson: ao-clkc: claim clock controller input clocks from DT
  clk: meson: axg: claim clock controller input clock from DT
  clk: meson: gxbb: claim clock controller input clock from DT
  clk: meson: meson8b: add the GPU clock tree
  clk: meson: meson8b: use a separate clock table for Meson8
  clk: meson: axg-ao: add 32k generation subtree
  clk: meson: gxbb-ao: replace cec-32k with the dual divider
  clk: meson: add dual divider clock driver
  ...

* clk-renesas:
  clk: renesas: r8a774a1: Fix LAST_DT_CORE_CLK
  clk: renesas: r8a774c0: Fix LAST_DT_CORE_CLK
  clk: renesas: r8a774c0: Add TMU clock
  clk: renesas: r8a77980: Add RPC clocks
  clk: renesas: rcar-gen3: Add RPC clocks
  clk: renesas: rcar-gen3: Add spinlock
  clk: renesas: rcar-gen3: Factor out cpg_reg_modify()
  clk: renesas: r8a774c0: Correct parent clock of DU
  clk: renesas: r8a774a1: Add missing CANFD clock
  clk: renesas: r8a774c0: Add missing CANFD clock
 2019-03-08 10:27:21 -08:00
Stephen Boyd 7e2570031a Merge branches 'clk-of-refcount', 'clk-mmio-fixed-clock', 'clk-remove-clps', 'clk-socfpga-parent' and 'clk-struct-size' into clk-next 
- Various DT of_node refcount fixes
 - Support for fixed rate clks populated from an MMIO register
 - Remove clps711x driver as the board support is gone

* clk-of-refcount:
  clk: dove: fix refcount leak in dove_clk_init()
  clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init()
  clk: armada-xp: fix refcount leak in axp_clk_init()
  clk: kirkwood: fix refcount leak in kirkwood_clk_init()
  clk: armada-370: fix refcount leak in a370_clk_init()
  clk: vf610: fix refcount leak in vf610_clocks_init()
  clk: imx7d: fix refcount leak in imx7d_clocks_init()
  clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
  clk: imx6q: fix refcount leak in imx6q_clocks_init()
  clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
  clk: socfpga: fix refcount leak
  clk: ti: fix refcount leak in ti_dt_clocks_register()
  clk: qoriq: fix refcount leak in clockgen_init()
  clk: highbank: fix refcount leak in hb_clk_init()

* clk-mmio-fixed-clock:
  clk: Add Fixed MMIO clock driver
  dt-bindings: clk: Add bindings for Fixed MMIO clock

* clk-remove-clps:
  clk: clps711x: Remove board support

* clk-socfpga-parent:
  clk: socfpga: Don't have get_parent for single parent ops

* clk-struct-size:
  clk: imx: imx7ulp: use struct_size() in kzalloc()
 2019-03-08 10:26:59 -08:00
Linus Torvalds 3601fe43e8 This is the bulk of GPIO changes for the v5.1 cycle: 
Core changes:
 
 - The big change this time around is the irqchip handling in
   the qualcomm pin controllers, closely coupled with the
   gpiochip. This rework, in a classic fall-between-the-chairs
   fashion has been sidestepped for too long. The Qualcomm
   IRQchips using the SPMI and SSBI transport mechanisms have
   been rewritten to use hierarchical irqchip. This creates
   the base from which I intend to gradually pull support for
   hierarchical irqchips into the gpiolib irqchip helpers to
   cut down on duplicate code. We have too many hacks in the
   kernel because people have been working around the missing
   hierarchical irqchip for years, and once it was there,
   noone understood it for a while. We are now slowly adapting
   to using it. This is why this pull requests include changes
   to MFD, SPMI, IRQchip core and some ARM Device Trees
   pertaining to the Qualcomm chip family. Since Qualcomm have
   so many chips and such large deployments it is paramount
   that this platform gets this right, and now it (hopefully)
   does.
 
 - Core support for pull-up and pull-down configuration, also
   from the device tree. When a simple GPIO chip support a
   "off or on" pull-up or pull-down resistor, we provide a
   way to set this up using machine descriptors or device tree.
   If more elaborate control of pull up/down (such as
   resistance shunt setting) is required, drivers should be
   phased over to use pin control. We do not yet provide a
   userspace ABI for this pull up-down setting but I suspect
   the makers are going to ask for it soon enough. PCA953x
   is the first user of this new API.
 
 - The GPIO mockup driver has been revamped after some
   discussion improving the IRQ simulator in the process.
   The idea is to make it possible to use the mockup for
   both testing and virtual prototyping, e.g. when you do
   not yet have a GPIO expander to play with but really
   want to get something to develop code around before
   hardware is available. It's neat. The blackbox testing
   usecase is currently making its way into kernelci.
 
 - ACPI GPIO core preserves non direction flags when updating
   flags.
 
 - A new device core helper for devm_platform_ioremap_resource()
   is funneled through the GPIO tree with Greg's ACK.
 
 New drivers:
 
 - TQ-Systems QTMX86 GPIO controllers (using port-mapped
   I/O)
 
 - Gateworks PLD GPIO driver (vaccumed up from OpenWrt)
 
 - AMD G-Series PCH (Platform Controller Hub) GPIO driver.
 
 - Fintek F81804 & F81966 subvariants.
 
 - PCA953x now supports NXP PCAL6416.
 
 Driver improvements:
 
 - IRQ support on the Nintendo Wii (Hollywood) GPIO.
 
 - get_direction() support for the MVEBU driver.
 
 - Set the right output level on SAMA5D2.
 
 - Drop the unused irq trigger setting on the Spreadtrum
   driver.
 
 - Wakeup support for PCA953x.
 
 - A slew of cleanups in the various Intel drivers.
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Merge tag 'gpio-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v5.1 cycle:

  Core changes:

   - The big change this time around is the irqchip handling in the
     qualcomm pin controllers, closely coupled with the gpiochip. This
     rework, in a classic fall-between-the-chairs fashion has been
     sidestepped for too long.

     The Qualcomm IRQchips using the SPMI and SSBI transport mechanisms
     have been rewritten to use hierarchical irqchip. This creates the
     base from which I intend to gradually pull support for hierarchical
     irqchips into the gpiolib irqchip helpers to cut down on duplicate
     code.

     We have too many hacks in the kernel because people have been
     working around the missing hierarchical irqchip for years, and once
     it was there, noone understood it for a while. We are now slowly
     adapting to using it.

     This is why this pull requests include changes to MFD, SPMI,
     IRQchip core and some ARM Device Trees pertaining to the Qualcomm
     chip family. Since Qualcomm have so many chips and such large
     deployments it is paramount that this platform gets this right, and
     now it (hopefully) does.

   - Core support for pull-up and pull-down configuration, also from the
     device tree. When a simple GPIO chip supports an "off or on" pull-up
     or pull-down resistor, we provide a way to set this up using
     machine descriptors or device tree.

     If more elaborate control of pull up/down (such as resistance shunt
     setting) is required, drivers should be phased over to use pin
     control. We do not yet provide a userspace ABI for this pull
     up-down setting but I suspect the makers are going to ask for it
     soon enough. PCA953x is the first user of this new API.

   - The GPIO mockup driver has been revamped after some discussion
     improving the IRQ simulator in the process.

     The idea is to make it possible to use the mockup for both testing
     and virtual prototyping, e.g. when you do not yet have a GPIO
     expander to play with but really want to get something to develop
     code around before hardware is available. It's neat. The blackbox
     testing usecase is currently making its way into kernelci.

   - ACPI GPIO core preserves non direction flags when updating flags.

   - A new device core helper for devm_platform_ioremap_resource() is
     funneled through the GPIO tree with Greg's ACK.

  New drivers:

   - TQ-Systems QTMX86 GPIO controllers (using port-mapped I/O)

   - Gateworks PLD GPIO driver (vaccumed up from OpenWrt)

   - AMD G-Series PCH (Platform Controller Hub) GPIO driver.

   - Fintek F81804 & F81966 subvariants.

   - PCA953x now supports NXP PCAL6416.

  Driver improvements:

   - IRQ support on the Nintendo Wii (Hollywood) GPIO.

   - get_direction() support for the MVEBU driver.

   - Set the right output level on SAMA5D2.

   - Drop the unused irq trigger setting on the Spreadtrum driver.

   - Wakeup support for PCA953x.

   - A slew of cleanups in the various Intel drivers"

* tag 'gpio-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (110 commits)
  gpio: gpio-omap: fix level interrupt idling
  gpio: amd-fch: Set proper output level for direction_output
  x86: apuv2: remove unused variable
  gpio: pca953x: Use PCA_LATCH_INT
  platform/x86: fix PCENGINES_APU2 Kconfig warning
  gpio: pca953x: Fix dereference of irq data in shutdown
  gpio: amd-fch: Fix type error found by sparse
  gpio: amd-fch: Drop const from resource
  gpio: mxc: add check to return defer probe if clock tree NOT ready
  gpio: ftgpio: Register per-instance irqchip
  gpio: ixp4xx: Add DT bindings
  x86: pcengines apuv2 gpio/leds/keys platform driver
  gpio: AMD G-Series PCH gpio driver
  drivers: depend on HAS_IOMEM for devm_platform_ioremap_resource()
  gpio: tqmx86: Set proper output level for direction_output
  gpio: sprd: Change to use SoC compatible string
  gpio: sprd: Use SoC compatible string instead of wildcard string
  gpio: of: Handle both enable-gpio{,s}
  gpio: of: Restrict enable-gpio quirk to regulator-gpio
  gpio: davinci: use devm_platform_ioremap_resource()
  ...
 2019-03-08 10:09:53 -08:00
Linus Torvalds cf2e8c544c - New Drivers 
- Add STMPE ADC Input driver
    - Add STMicroelectronics STPMIC1 Parent driver
    - Add STMicroelectronics STPMIC1 OnKey Misc driver
    - Add STMicroelectronics STPMIC1 Watchdog driver
    - Add Cirrus Logic Lochnagar Parent driver
    - Add TQ-Systems TQMX86 Parent driver
 
  - New Device Support
    - Add support for ADC to STMPE
 
  - New (or moved) Functionality
    - Move Lightbar functionality to its own driver; cros_ec_lightbar
    - Move VBC functionality to its own driver; cros_ec_vbc
    - Move VBC functionality to its own driver; cros_ec_vbc
    - Move DebugFS functionality to its own driver; cros_ec_debugfs
    - Move SYSFS functionality to its own driver; cros_ec_sysfs
    - Add support for input voltage options; tps65218
 
  - Fix-ups
    - Use devm_* managed resources; cros_ec
    - Device Tree documentation; stmpe, aspeed-lpc, lochnagar
    - Trivial Clean-ups; stmpe
    - Rip out broken modular code; aat2870-core, adp5520, as3711,
          db8500-prcmu, htc-i2cpld, max8925-core, rc5t583, sta2x11-mfd,
 	 syscon, tps65090, tps65910, tps68470 tps80031, wm831x-spi,
 	 wm831x-i2c, wm831x-core, wm8350-i2c, wm8350-core, wm8400-core
    - Kconfig fixups; INTEL_SOC_PMIC
    - Improve error path; sm501, sec-core
    - Use struct_size() helper; sm501
    - Constify; at91-usart
    - Use pointers instead of copying data; at91-usart
    - Deliver proper return value; cros_ec_dev
    - Trivial formatting/whitespace; sec-core
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Merge tag 'mfd-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add STMPE ADC Input driver
   - Add STMicroelectronics STPMIC1 Parent driver
   - Add STMicroelectronics STPMIC1 OnKey Misc driver
   - Add STMicroelectronics STPMIC1 Watchdog driver
   - Add Cirrus Logic Lochnagar Parent driver
   - Add TQ-Systems TQMX86 Parent driver

  New Device Support:
   - Add support for ADC to STMPE

  New (or moved) Functionality:
   - Move Lightbar functionality to its own driver; cros_ec_lightbar
   - Move VBC functionality to its own driver; cros_ec_vbc
   - Move VBC functionality to its own driver; cros_ec_vbc
   - Move DebugFS functionality to its own driver; cros_ec_debugfs
   - Move SYSFS functionality to its own driver; cros_ec_sysfs
   - Add support for input voltage options; tps65218

  Fixes:
   - Use devm_* managed resources; cros_ec
   - Device Tree documentation; stmpe, aspeed-lpc, lochnagar
   - Trivial Clean-ups; stmpe
   - Rip out broken modular code; aat2870-core, adp5520, as3711,
         db8500-prcmu, htc-i2cpld, max8925-core, rc5t583, sta2x11-mfd,
	 syscon, tps65090, tps65910, tps68470 tps80031, wm831x-spi,
	 wm831x-i2c, wm831x-core, wm8350-i2c, wm8350-core, wm8400-core
   - Kconfig fixups; INTEL_SOC_PMIC
   - Improve error path; sm501, sec-core
   - Use struct_size() helper; sm501
   - Constify; at91-usart
   - Use pointers instead of copying data; at91-usart
   - Deliver proper return value; cros_ec_dev
   - Trivial formatting/whitespace; sec-core"

* tag 'mfd-next-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
  mfd: mxs-lradc: Mark expected switch fall-through
  mfd: sec-core: Cleanup formatting to a consistent style
  mfd: tqmx86: IO controller with I2C, Wachdog and GPIO
  mfd: intel-lpss: Move linux/pm.h to the local header
  mfd: cros_ec_dev: Return number of bytes read with CROS_EC_DEV_IOCRDMEM
  mfd: tps68470: Drop unused MODULE_DEVICE_TABLE
  mfd: at91-usart: No need to copy mfd_cell in probe
  mfd: at91-usart: Constify at91_usart_spi_subdev and at91_usart_serial_subdev
  mfd: lochnagar: Add support for the Cirrus Logic Lochnagar
  mfd: lochnagar: Add initial binding documentation
  dt-bindings: mfd: aspeed-lpc: Make parameter optional
  mfd: sec-core: Return gracefully instead of BUG() if device cannot match
  mfd: sm501: Use struct_size() in devm_kzalloc()
  mfd: sm501: Fix potential NULL pointer dereference
  mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies
  mfd: tps65218.c: Add input voltage options
  mfd: wm8400-core: Make it explicitly non-modular
  mfd: wm8350-core: Drop unused module infrastructure from non-modular code
  mfd: wm8350-i2c: Make it explicitly non-modular
  mfd: wm831x-core: Drop unused module infrastructure from non-modular code
  ...
 2019-03-08 10:02:58 -08:00
Linus Torvalds f8d35403eb RTC for 5.0 
Subsystem:
  - new quartz-load-femtofarads DT property for quartz load capacitance
  - remove rtc_class_ops.read_callback
 
 New drivers:
  - Abracon AB-RTCMC-32.768kHz-EOZ9
  - Amlogic Meson RTC
  - Cadence RTC IP
  - Microcrystal RV3028
  - Whwave sd3078
 
 Drivers:
  - cmos: ignore bogus century byte
  - ds1307: rework rx8130 support
  - isl1208: add isl1209 support, nvmem support
  - rs5C372: report invalid time when the oscillator stopped
  - rx8581: add rx8571 support
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Merge tag 'rtc-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "There is an unusual amount of new drivers this cycle, and this
  explains the number of insertions.

  Other than that, the changes are the usual fixes and feature addition.

  Subsystem updates:
   - new quartz-load-femtofarads DT property for quartz load capacitance
   - remove rtc_class_ops.read_callback

  New drivers:
   - Abracon AB-RTCMC-32.768kHz-EOZ9
   - Amlogic Meson RTC
   - Cadence RTC IP
   - Microcrystal RV3028
   - Whwave sd3078

  Driver updates:
   - cmos: ignore bogus century byte
   - ds1307: rework rx8130 support
   - isl1208: add isl1209 support, nvmem support
   - rs5C372: report invalid time when the oscillator stopped
   - rx8581: add rx8571 support"

* tag 'rtc-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (66 commits)
  rtc: pic32: convert to SPDX identifier
  rtc: pic32: let the core handle range
  rtc: pic32: convert to devm_rtc_allocate_device
  rtc: update my email address
  rtc: rv8803: convert to SPDX identifier
  rtc: rv8803: let the core handle range
  rtc: tx4939: convert to SPDX identifier
  rtc: tx4939: use .set_time
  rtc: tx4939: switch to rtc_time64_to_tm/rtc_tm_to_time64
  rtc: tx4939: set range
  rtc: tx4939: remove useless test
  rtc: zynqmp: let the core handle range
  rtc: zynqmp: fix possible race condition
  rtc: imx-sc: use rtc_time64_to_tm
  rtc: rx8581: Add support for Epson rx8571 RTC
  dt-bindings: rtc: add rx8571 compatible
  rtc: pcf85063: remove dead code
  rtc: remove rtc_class_ops.read_callback
  rtc: add AB-RTCMC-32.768kHz-EOZ9 RTC support
  dt-bindings: rtc: add ABEOZ9
  ...
 2019-03-08 09:54:55 -08:00
Linus Torvalds 9f24a81e2e Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal 
Pull thermal soc updates from Eduardo Valentin:
 "Specifics:

   - mediatek thermal now supports MT8183

   - broadcom thermal now supports Stingray

   - qoirq now supports multiple sensors

   - fixes on different drivers: rcar, tsens, tegra

  Some new drivers are still pending further review and I chose to leave
  them for the next merge window while still sending this material"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: rcar_gen3_thermal: Register hwmon sysfs interface
  thermal/qcom/tsens-common : fix possible object reference leak
  thermal: tegra: add get_trend ops
  thermal: tegra: fix memory allocation
  thermal: tegra: remove unnecessary warnings
  thermal: mediatek: add support for MT8183
  dt-bindings: thermal: add binding document for mt8183 thermal controller
  thermal: mediatek: add flag for bank selection
  thermal: mediatek: add thermal controller offset
  thermal: mediatek: add calibration item
  thermal: mediatek: add common index of vts settings.
  thermal: mediatek: fix register index error
  thermal: qoriq: add multiple sensors support
  thermal: broadcom: Add Stingray thermal driver
  dt-bindings: thermal: Add binding document for SR thermal
 2019-03-08 09:52:41 -08:00
Linus Torvalds 6c3f98fadd Merge branch 'i2c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 
Pull i2c updates from Wolfram Sang:

 - the I2C core gained helpers to assist drivers in handling their
   suspended state, and drivers were converted to use it

 - two new fault-injectors for stress-testing

 - bigger refactoring and feature improvements for the ocores,
   sh_mobile, and tegra drivers

 - platform_data removal for the at24 EEPROM driver

 - ... and various improvements and bugfixes all over the subsystem

* 'i2c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (69 commits)
  i2c: Allow recovery of the initial IRQ by an I2C client device.
  i2c: ocores: turn incomplete kdoc into a comment
  i2c: designware: Do not allow i2c_dw_xfer() calls while suspended
  i2c: tegra: Only display error messages if DMA setup fails
  i2c: gpio: fault-injector: add 'inject_panic' injector
  i2c: gpio: fault-injector: add 'lose_arbitration' injector
  i2c: tegra: remove multi-master support
  i2c: tegra: remove master fifo support on tegra186
  i2c: tegra: change phrasing, "fallbacking" to "falling back"
  i2c: expand minor range when registering chrdev region
  i2c: aspeed: Add multi-master use case support
  i2c: core-smbus: don't trace smbus_reply data on errors
  i2c: ocores: Add support for bus clock via platform data
  i2c: ocores: Add support for IO mapper registers.
  i2c: ocores: checkpatch fixes
  i2c: ocores: add SPDX tag
  i2c: ocores: add polling interface
  i2c: ocores: do not handle IRQ if IF is not set
  i2c: ocores: stop transfer on timeout
  i2c: tegra: add i2c interface timing support
  ...
 2019-03-08 09:27:33 -08:00
Linus Torvalds 1cabd3e0bd power supply and reset changes for the v5.1 series 
* at91-reset: add sam9x60 support
 * sc27xx: improve capacity logic
 * goldfish_battery: enhance driver by adding many new properties
 * isp1704: drop platform data and migrate to gpiod
 * misc. small fixes and improvements
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Merge tag 'for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Nothing too fancy in the power-supply subsystem this time. There are
  less patches than usual, since I did not have enough time to review
  them in time. The good news is, that all patches have been in
  linux-next for more than two weeks and there are no complicated
  cross-subsystem patchsets this time!

  Summary:

   - at91-reset: add sam9x60 support

   - sc27xx: improve capacity logic

   - goldfish_battery: enhance driver by adding many new properties

   - isp1704: drop platform data and migrate to gpiod

   - misc small fixes and improvements"

* tag 'for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (25 commits)
  power: reset: at91-reset: add support for sam9x60 SoC
  dt-bindings: arm: atmel: add new sam9x60 reset controller binding
  dt-bindings: arm: atmel: add missing samx7 to reset controller
  max17042_battery: fix potential use-after-free on device remove
  power: supply: core: Add a field to support battery max voltage
  dt-bindings: power: supply: Add voltage-max-design-microvolt property
  bq27x00: use cached flags
  power: supply: ds2782: fix possible use-after-free on remove
  power: supply: bq25890: show max charge current/voltage as configured
  power: supply: sc27xx: Fix capacity saving function
  power: supply: sc27xx: Fix the incorrect formula when converting capacity to coulomb counter
  power: supply: sc27xx: Add one property to read charge voltage
  dt-bindings: power: sc27xx: Add one IIO channel to read charge voltage
  drivers: power: supply: goldfish_battery: Add support for reading more properties
  power: supply: charger-manager: Fix trivial language typos
  cpcap-charger: generate events for userspace
  power: supply: remove some duplicated includes
  power: twl4030: fix a missing check of return value
  drivers: power: supply: goldfish_battery: Use tabs for alignment
  drivers: power: supply: goldfish_battery: Fix alignment
  ...
 2019-03-08 09:24:00 -08:00
Linus Torvalds 1b37b8c48d * A new EDAC AST 2500 SoC driver (Stefan M Schaeckeler) 
* New i10nm EDAC driver for Intel 10nm CPUs (Qiuxu Zhuo and Tony Luck)
 
 * Altera SDRAM functionality carveout for separate enablement of RAS and
 SDRAM capabilities on some Altera chips. (Thor Thayer)
 
 * The usual round of cleanups and fixes
 
 Last but not least:
 
 * Recruit James Morse as a reviewer for the ARM side
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Merge tag 'edac_for_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - A new EDAC AST 2500 SoC driver (Stefan M Schaeckeler)

 - New i10nm EDAC driver for Intel 10nm CPUs (Qiuxu Zhuo and Tony Luck)

 - Altera SDRAM functionality carveout for separate enablement of RAS
   and SDRAM capabilities on some Altera chips. (Thor Thayer)

 - The usual round of cleanups and fixes

And last but not least: recruit James Morse as a reviewer for the ARM
side.

* tag 'edac_for_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC/altera: Add separate SDRAM EDAC config
  EDAC, altera: Add missing of_node_put()
  EDAC, skx_common: Add code to recognise new compound error code
  EDAC, i10nm: Fix randconfig builds
  EDAC, i10nm: Add a driver for Intel 10nm server processors
  EDAC, skx_edac: Delete duplicated code
  EDAC, skx_common: Separate common code out from skx_edac
  EDAC: Do not check return value of debugfs_create() functions
  EDAC: Add James Morse as a reviewer
  dt-bindings, EDAC: Add Aspeed AST2500
  EDAC, aspeed: Add an Aspeed AST2500 EDAC driver
 2019-03-08 09:07:07 -08:00
Linus Torvalds b7af27bf94 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching 
Pull livepatching updates from Jiri Kosina:

 - support for something we call 'atomic replace', and allows for much
   better handling of cumulative patches (which is something very useful
   for distros), from Jason Baron with help of Petr Mladek and Joe
   Lawrence

 - improvement of handling of tasks blocking finalization, from Miroslav
   Benes

 - update of MAINTAINERS file to reflect move towards group
   maintainership

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: (22 commits)
  livepatch/selftests: use "$@" to preserve argument list
  livepatch: Module coming and going callbacks can proceed with all listed patches
  livepatch: Proper error handling in the shadow variables selftest
  livepatch: return -ENOMEM on ptr_id() allocation failure
  livepatch: Introduce klp_for_each_patch macro
  livepatch: core: Return EOPNOTSUPP instead of ENOSYS
  selftests/livepatch: add DYNAMIC_DEBUG config dependency
  livepatch: samples: non static warnings fix
  livepatch: update MAINTAINERS
  livepatch: Remove signal sysfs attribute
  livepatch: Send a fake signal periodically
  selftests/livepatch: introduce tests
  livepatch: Remove ordering (stacking) of the livepatches
  livepatch: Atomic replace and cumulative patches documentation
  livepatch: Remove Nop structures when unused
  livepatch: Add atomic replace
  livepatch: Use lists to manage patches, objects and functions
  livepatch: Simplify API by removing registration step
  livepatch: Don't block the removal of patches loaded after a forced transition
  livepatch: Consolidate klp_free functions
  ...
 2019-03-08 08:58:25 -08:00
Linus Torvalds 851ca779d1 drm next pull request for 5.1 
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Merge tag 'drm-next-2019-03-06' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is the main drm pull request for the 5.1 merge window.

  The big changes I'd highlight are:
   - nouveau has HMM support now, there is finally an in-tree user so we
     can quieten down the rip it out people.
   - i915 now enables fastboot by default on Skylake+
   - Displayport Multistream support has been refactored and should
     hopefully be more reliable.

  Core:
   - header cleanups aiming towards removing drmP.h
   - dma-buf fence seqnos to 64-bits
   - common helper for DP mst hotplug for radeon,i915,amdgpu + new
     refcounting scheme
   - MST i2c improvements
   - drm_syncobj_cb removal
   - ARM FB compression fourcc
   - P010 + P016 fourcc
   - allwinner tiled format modifier
   - i2c over aux I2C_M_STOP support
   - DRM_AUTH handling fixes

  TTM:
   - ref/unref renaming

  New driver:
   - ARM komeda display driver

  scheduler:
   - refactor mirror list handling
   - rework hw fence processing
   - 0 run queue entity fix

  bridge:
   - TI DS90C185 LVDS bridge
   - thc631lvdm83d bridge improvements
   - cadence + allwinner DSI ported to generic phy

  panels:
   - Sitronix ST7701 panel
   - Kingdisplay KD097D04
   - LeMaker BL035-RGB-002
   - PDA 91-00156-A0
   - Innolux EE101IA-01D

  i915:
   - Enable fastboot by default on SKL+/VLV/CHV
   - Export RPCS configuration for ICL media driver
   - Coffelake PCI ID
   - CNL clocks setup fixes
   - ACPI/PMIC support for MIPI/DSI
   - Per-engine WA init for all engines
   - Shrinker locking fixes
   - Kerneldoc updates
   - Lots of ring improvements and reset fixes
   - Coffeelake GVT Support
   - VFIO GVT EDID Region support
   - runtime PM wakeref tracking
   - ILK->IVB primary plane enable delays
   - userptr mutex locking fixes
   - DSI fixes
   - LVDS/TV cleanups
   - HW readout fixes
   - LUT robustness fixes
   - ICL display and watermark fixes
   - gem mmap race fix

  amdgpu:
   - add scheduled dependencies interface
   - DCC on scanout surfaces
   - vega10/20 BACO support
   - Multiple IH rings on soc15
   - XGMI locking fixes
   - DC i2c/aux cleanups
   - runtime SMU debug interface
   - Kexec improvmeents
   - SR-IOV fixes
   - DC freesync + ABM fixes
   - GDS fixes
   - GPUVM fixes
   - vega20 PCIE DPM switching fixes
   - Context priority handling fixes

  radeon:
   - fix missing break in evergreen parser

  nouveau:
   - SVM support via HMM

  msm:
   - QCOM Compressed modifier support

  exynos:
   - s5pv210 rotator support

  imx:
   - zpos property support
   - pending update fixes

  v3d:
   - cache flush improvments

  vc4:
   - reflection support
   - HDMI overscan support

  tegra:
   - CEC refactoring
   - HDMI audio fixes
   - Tegra186 prep work
   - SOR crossbar device tree fixes

  sun4i:
   - implicit fencing support
   - YUV and scalar support improvements
   - A23 support
   - tiling fixes

  atmel-hlcdc:
   - clipping and rotation property fixes

  qxl:
   - BO and PRIME improvements
   - generic fbdev emulation

  dw-hdmi:
   - HDMI 2.0 2160p
   - YUV420 ouput

  rockchip:
   - implicit fencing support
   - reflection proerties

  virtio-gpu:
   - use generic fbdev emulation

  tilcdc:
   - cpufreq vs crtc init fix

  rcar-du:
   - R8A774C0 support
   - D3/E3 RGB output routing fixes and DPAD0 support
   - RA87744 LVDS support

  bochs:
   - atomic and generic fbdev emulation
   - ID mismatch error on bochs load

  meson:
   - remove firmware fbs"

* tag 'drm-next-2019-03-06' of git://anongit.freedesktop.org/drm/drm: (1130 commits)
  drm/amd/display: Use vrr friendly pageflip throttling in DC.
  drm/imx: only send commit done event when all state has been applied
  drm/imx: allow building under COMPILE_TEST
  drm/imx: imx-tve: depend on COMMON_CLK
  drm/imx: ipuv3-plane: add zpos property
  drm/imx: ipuv3-plane: add function to query atomic update status
  gpu: ipu-v3: prg: add function to get channel configure status
  gpu: ipu-v3: pre: add double buffer status readback
  drm/amdgpu: Bump amdgpu version for context priority override.
  drm/amdgpu/powerplay: fix typo in BACO header guards
  drm/amdgpu/powerplay: fix return codes in BACO code
  drm/amdgpu: add missing license on baco files
  drm/bochs: Fix the ID mismatch error
  drm/nouveau/dmem: use dma addresses during migration copies
  drm/nouveau/dmem: use physical vram addresses during migration copies
  drm/nouveau/dmem: extend copy function to allow direct use of physical addresses
  drm/nouveau/svm: new ioctl to migrate process memory to GPU memory
  drm/nouveau/dmem: device memory helpers for SVM
  drm/nouveau/svm: initial support for shared virtual memory
  drm/nouveau: prepare for enabling svm with existing userspace interfaces
  ...
 2019-03-08 08:23:15 -08:00
Linus Torvalds b5dd0c658c Merge branch 'akpm' (patches from Andrew) 
Merge more updates from Andrew Morton:

 - some of the rest of MM

 - various misc things

 - dynamic-debug updates

 - checkpatch

 - some epoll speedups

 - autofs

 - rapidio

 - lib/, lib/lzo/ updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (83 commits)
  samples/mic/mpssd/mpssd.h: remove duplicate header
  kernel/fork.c: remove duplicated include
  include/linux/relay.h: fix percpu annotation in struct rchan
  arch/nios2/mm/fault.c: remove duplicate include
  unicore32: stop printing the virtual memory layout
  MAINTAINERS: fix GTA02 entry and mark as orphan
  mm: create the new vm_fault_t type
  arm, s390, unicore32: remove oneliner wrappers for memblock_alloc()
  arch: simplify several early memory allocations
  openrisc: simplify pte_alloc_one_kernel()
  sh: prefer memblock APIs returning virtual address
  microblaze: prefer memblock API returning virtual address
  powerpc: prefer memblock APIs returning virtual address
  lib/lzo: separate lzo-rle from lzo
  lib/lzo: implement run-length encoding
  lib/lzo: fast 8-byte copy on arm64
  lib/lzo: 64-bit CTZ on arm64
  lib/lzo: tidy-up ifdefs
  ipc/sem.c: replace kvmalloc/memset with kvzalloc and use struct_size
  ipc: annotate implicit fall through
  ...
 2019-03-07 19:25:37 -08:00
Dave Rodgman 45ec975efb lib/lzo: separate lzo-rle from lzo 
To prevent any issues with persistent data, separate lzo-rle from lzo so
that it is treated as a separate algorithm, and lzo is still available.

Link: http://lkml.kernel.org/r/20190205155944.16007-3-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Matt Sealey <matt.sealey@arm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-07 18:32:03 -08:00
Dave Rodgman 5ee4014af9 lib/lzo: implement run-length encoding 
Patch series "lib/lzo: run-length encoding support", v5.

Following on from the previous lzo-rle patchset:

  https://lkml.org/lkml/2018/11/30/972

This patchset contains only the RLE patches, and should be applied on
top of the non-RLE patches ( https://lkml.org/lkml/2019/2/5/366 ).

Previously, some questions were raised around the RLE patches.  I've
done some additional benchmarking to answer these questions.  In short:

 - RLE offers significant additional performance (data-dependent)

 - I didn't measure any regressions that were clearly outside the noise

One concern with this patchset was around performance - specifically,
measuring RLE impact separately from Matt Sealey's patches (CTZ & fast
copy).  I have done some additional benchmarking which I hope clarifies
the benefits of each part of the patchset.

Firstly, I've captured some memory via /dev/fmem from a Chromebook with
many tabs open which is starting to swap, and then split this into 4178
4k pages.  I've excluded the all-zero pages (as zram does), and also the
no-zero pages (which won't tell us anything about RLE performance).
This should give a realistic test dataset for zram.  What I found was
that the data is VERY bimodal: 44% of pages in this dataset contain 5%
or fewer zeros, and 44% contain over 90% zeros (30% if you include the
no-zero pages).  This supports the idea of special-casing zeros in zram.

Next, I've benchmarked four variants of lzo on these pages (on 64-bit
Arm at max frequency): baseline LZO; baseline + Matt Sealey's patches
(aka MS); baseline + RLE only; baseline + MS + RLE.  Numbers are for
weighted roundtrip throughput (the weighting reflects that zram does
more compression than decompression).

  https://drive.google.com/file/d/1VLtLjRVxgUNuWFOxaGPwJYhl_hMQXpHe/view?usp=sharing

Matt's patches help in all cases for Arm (and no effect on Intel), as
expected.

RLE also behaves as expected: with few zeros present, it makes no
difference; above ~75%, it gives a good improvement (50 - 300 MB/s on
top of the benefit from Matt's patches).

Best performance is seen with both MS and RLE patches.

Finally, I have benchmarked the same dataset on an x86-64 device.  Here,
the MS patches make no difference (as expected); RLE helps, similarly as
on Arm.  There were no definite regressions; allowing for observational
error, 0.1% (3/4178) of cases had a regression > 1 standard deviation,
of which the largest was 4.6% (1.2 standard deviations).  I think this
is probably within the noise.

  https://drive.google.com/file/d/1xCUVwmiGD0heEMx5gcVEmLBI4eLaageV/view?usp=sharing

One point to note is that the graphs show RLE appears to help very
slightly with no zeros present! This is because the extra code causes
the clang optimiser to change code layout in a way that happens to have
a significant benefit.  Taking baseline LZO and adding a do-nothing line
like "__builtin_prefetch(out_len);" immediately before the "goto next"
has the same effect.  So this is a real, but basically spurious effect -
it's small enough not to upset the overall findings.

This patch (of 3):

When using zram, we frequently encounter long runs of zero bytes.  This
adds a special case which identifies runs of zeros and encodes them
using run-length encoding.

This is faster for both compression and decompresion.  For high-entropy
data which doesn't hit this case, impact is minimal.

Compression ratio is within a few percent in all cases.

This modifies the bitstream in a way which is backwards compatible
(i.e., we can decompress old bitstreams, but old versions of lzo cannot
decompress new bitstreams).

Link: http://lkml.kernel.org/r/20190205155944.16007-2-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Matt Sealey <matt.sealey@arm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <nitingupta910@gmail.com>
Cc: Richard Purdie <rpurdie@openedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Sonny Rao <sonnyrao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-07 18:32:02 -08:00
Masahiro Yamada 13610aa908 kernel/configs: use .incbin directive to embed config_data.gz 
This slightly optimizes the kernel/configs.c build.

bin2c is not very efficient because it converts a data file into a huge
array to embed it into a *.c file.

Instead, we can use the .incbin directive.

Also, this simplifies the code; Makefile is cleaner, and the way to get
the offset/size of the config_data.gz is more straightforward.

I used the "asm" statement in *.c instead of splitting it into *.S
because MODULE_* tags are not supported in *.S files.

I also cleaned up kernel/.gitignore; "config_data.gz" is unneeded
because the top-level .gitignore takes care of the "*.gz" pattern.

[yamada.masahiro@socionext.com: v2]
  Link: http://lkml.kernel.org/r/1550108893-21226-1-git-send-email-yamada.masahiro@socionext.com
Link: http://lkml.kernel.org/r/1549941160-8084-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alexander Popov <alex.popov@linux.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-07 18:32:02 -08:00
Alexey Brodkin 3337d5cfe5 configs: get rid of obsolete CONFIG_ENABLE_WARN_DEPRECATED 
This Kconfig option was removed during v4.19 development in commit
771c035372 ("deprecate the '__deprecated' attribute warnings entirely
and for good") so there's no point to keep it in defconfigs any longer.

FWIW defconfigs were patched with:
--------------------------->8----------------------
find . -name *_defconfig -exec sed -i '/CONFIG_ENABLE_WARN_DEPRECATED/d' {} \;
--------------------------->8----------------------

Link: http://lkml.kernel.org/r/20190128152434.41969-1-abrodkin@synopsys.com
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-07 18:32:02 -08:00
Linus Torvalds d2cb698f68 Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 kdump update from Ingo Molnar:
 "Add the AMD SME mask to the vmcoreinfo, and also document our
  vmcoreinfo fields"

* 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kdump: Document kernel data exported in the vmcoreinfo note
  x86/kdump: Export the SME mask to vmcoreinfo
 2019-03-07 17:42:13 -08:00
Linus Torvalds dd1c3ed76f Xtensa updates for v5.1: 
- use generic spinlock/rwlock implementations
 - clean up IPI processing
 - document boot parameters passing to the kernel
 - fix get_wchan
 - various cleanups in time.c, process.c, traps.c and thread_info.h
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Merge tag 'xtensa-20190307' of git://github.com/jcmvbkbc/linux-xtensa

Pull xtensa updates from Max Filippov:

 - use generic spinlock/rwlock implementations

 - clean up IPI processing

 - document boot parameters passing to the kernel

 - fix get_wchan

 - various cleanups in time.c, process.c, traps.c and thread_info.h

* tag 'xtensa-20190307' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: simplify trap_init
  xtensa: drop unused definitions
  xtensa: fix get_wchan
  xtensa: use generic spinlock/rwlock implementation
  xtensa: provide xchg for sizes 1 and 2
  xtensa: clean up arch/xtensa/kernel/time.c
  xtensa: SMP: rework IPI processing
  xtensa: document boot parameter passing
 2019-03-07 13:27:53 -08:00
Linus Torvalds ae5906ceee Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 
Pull security subsystem updates from James Morris:

 - Extend LSM stacking to allow sharing of cred, file, ipc, inode, and
   task blobs. This paves the way for more full-featured LSMs to be
   merged, and is specifically aimed at LandLock and SARA LSMs. This
   work is from Casey and Kees.

 - There's a new LSM from Micah Morton: "SafeSetID gates the setid
   family of syscalls to restrict UID/GID transitions from a given
   UID/GID to only those approved by a system-wide whitelist." This
   feature is currently shipping in ChromeOS.

* 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (62 commits)
  keys: fix missing __user in KEYCTL_PKEY_QUERY
  LSM: Update list of SECURITYFS users in Kconfig
  LSM: Ignore "security=" when "lsm=" is specified
  LSM: Update function documentation for cap_capable
  security: mark expected switch fall-throughs and add a missing break
  tomoyo: Bump version.
  LSM: fix return value check in safesetid_init_securityfs()
  LSM: SafeSetID: add selftest
  LSM: SafeSetID: remove unused include
  LSM: SafeSetID: 'depend' on CONFIG_SECURITY
  LSM: Add 'name' field for SafeSetID in DEFINE_LSM
  LSM: add SafeSetID module that gates setid calls
  LSM: add SafeSetID module that gates setid calls
  tomoyo: Allow multiple use_group lines.
  tomoyo: Coding style fix.
  tomoyo: Swicth from cred->security to task_struct->security.
  security: keys: annotate implicit fall throughs
  security: keys: annotate implicit fall throughs
  security: keys: annotate implicit fall through
  capabilities:: annotate implicit fall through
  ...
 2019-03-07 11:44:01 -08:00
Linus Torvalds 1fc1cd8399 Merge branch 'for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 
Pull cgroup updates from Tejun Heo:

 - Oleg's pids controller accounting update which gets rid of rcu delay
   in pids accounting updates

 - rstat (cgroup hierarchical stat collection mechanism) optimization

 - Doc updates

* 'for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: remove unused task_has_mempolicy()
  cgroup, rstat: Don't flush subtree root unless necessary
  cgroup: add documentation for pids.events file
  Documentation: cgroup-v2: eliminate markup warnings
  MAINTAINERS: Update cgroup entry
  cgroup/pids: turn cgroup_subsys->free() into cgroup_subsys->release() to fix the accounting
 2019-03-07 10:11:41 -08:00
Linus Torvalds 9e1fd794cb Changes for Linux 5.1: 
- Fix online fsck to handle inode btrees correctly on 64k block
   filesystems.
 - Teach online fsck to check directory and attribute names for invalid
   characters.
 - Miscellanous fixes for online fsck.
 - Introduce a new panic mask so that we can halt immediately on
   metadata corruption (for debugging purposes)
 - Fix a block mapping race during writeback.
 - Cache unlinked inode list backrefs in memory to speed up list
   processing.
 - Separate the bnobt/cntbt and inobt/finobt buffer verifiers so that we
   can detect crosslinked btrees.
 - Refactor magic number verification so that we can standardize it.
 - Strengthen ondisk metadata structure offset build time verification.
 - Fix a memory corruption problem in the listxattr code.
 - Fix a shutdown problem during log recovery due to unreserved finobt
   expansion.
 - Fix a referential integrity problem where O_TMPFILE inodes were put on
   the unlinked list with nlink > 0 which would cause asserts during log
   recovery if the system went down immediately.
 - Refactor the delayed allocation allocator to be more clever about the
   possibility that its mapping might be stale.
 - Various fixes to the copy on write mechanism.
 - Make CoW preallocation suitable for use even with writes that wouldn't
   otherwise require it.
 - Refactor an internal API.
 - Fix some statx implementation bugs.
 - Fix miscellaneous compiler and static checker complaints.
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Merge tag 'xfs-5.1-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Darrick Wong:
 "Here are a number of new features and bug fixes for 5.1

  They've undergone a week's worth of fstesting and merge cleanly with
  master as of this morning

  Most of the changes center on improving metadata validation and fixing
  problems with online fsck, though there's also a new cache to speed up
  unlinked inode handling and cleanup of the copy on write code in
  preparation for future features

  Changes for Linux 5.1:

   - Fix online fsck to handle inode btrees correctly on 64k block
     filesystems

   - Teach online fsck to check directory and attribute names for
     invalid characters

   - Miscellanous fixes for online fsck

   - Introduce a new panic mask so that we can halt immediately on
     metadata corruption (for debugging purposes)

   - Fix a block mapping race during writeback

   - Cache unlinked inode list backrefs in memory to speed up list
     processing

   - Separate the bnobt/cntbt and inobt/finobt buffer verifiers so that
     we can detect crosslinked btrees

   - Refactor magic number verification so that we can standardize it

   - Strengthen ondisk metadata structure offset build time verification

   - Fix a memory corruption problem in the listxattr code

   - Fix a shutdown problem during log recovery due to unreserved finobt
     expansion

   - Fix a referential integrity problem where O_TMPFILE inodes were put
     on the unlinked list with nlink > 0 which would cause asserts
     during log recovery if the system went down immediately

   - Refactor the delayed allocation allocator to be more clever about
     the possibility that its mapping might be stale

   - Various fixes to the copy on write mechanism

   - Make CoW preallocation suitable for use even with writes that
     wouldn't otherwise require it

   - Refactor an internal API

   - Fix some statx implementation bugs

   - Fix miscellaneous compiler and static checker complaints"

* tag 'xfs-5.1-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (70 commits)
  xfs: fix reporting supported extra file attributes for statx()
  xfs: fix backwards endian conversion in scrub
  xfs: fix uninitialized error variables
  xfs: rework breaking of shared extents in xfs_file_iomap_begin
  xfs: don't pass iomap flags to xfs_reflink_allocate_cow
  xfs: fix uninitialized error variable
  xfs: introduce an always_cow mode
  xfs: report IOMAP_F_SHARED from xfs_file_iomap_begin_delay
  xfs: make COW fork unwritten extent conversions more robust
  xfs: merge COW handling into xfs_file_iomap_begin_delay
  xfs: also truncate holes covered by COW blocks
  xfs: don't use delalloc extents for COW on files with extsize hints
  xfs: fix SEEK_DATA for speculative COW fork preallocation
  xfs: make xfs_bmbt_to_iomap more useful
  xfs: fix xfs_buf magic number endian checks
  xfs: retry COW fork delalloc conversion when no extent was found
  xfs: remove the truncate short cut in xfs_map_blocks
  xfs: move xfs_iomap_write_allocate to xfs_aops.c
  xfs: move stat accounting to xfs_bmapi_convert_delalloc
  xfs: move transaction handling to xfs_bmapi_convert_delalloc
  ..
 2019-03-07 09:38:51 -08:00
Flavio Suligoi 666dccf528 ACPI: Documentation: Fix path for acpidbg tool 
The file:

Documentation/acpi/aml-debugger.txt

reports an obsolete path for the acpidbg tool, so fix it.

Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2019-03-07 11:28:33 +01:00
Wendy Liang abdd85b6ba dt-bindings: mailbox: Add Xilinx IPI Mailbox 
Xilinx ZynqMP IPI(Inter Processor Interrupt) is a hardware block
in ZynqMP SoC used for the communication between various processor
systems.

Signed-off-by: Wendy Liang <wendy.liang@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
 2019-03-06 20:34:20 -06:00
Linus Torvalds f90d64483e USB/PHY patches for 5.1-rc1 
Here is the big USB/PHY driver pull request for 5.1-rc1.
 
 The usual set of gadget driver updates, phy driver updates (you will
 have a merge issue with Kconfig and Makefile), xhci updates, and typec
 additions.  Also included in here are a lot of small cleanups and fixes
 and driver updates where needed.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big USB/PHY driver pull request for 5.1-rc1.

  The usual set of gadget driver updates, phy driver updates, xhci
  updates, and typec additions. Also included in here are a lot of small
  cleanups and fixes and driver updates where needed.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (167 commits)
  wusb: Remove unnecessary static function ckhdid_printf
  usb: core: make default autosuspend delay configurable
  usb: core: Fix typo in description of "authorized_default"
  usb: chipidea: Refactor USB PHY selection and keep a single PHY
  usb: chipidea: Grab the (legacy) USB PHY by phandle first
  usb: chipidea: imx: set power polarity
  dt-bindings: usb: ci-hdrc-usb2: add property power-active-high
  usb: chipidea: imx: remove unused header files
  usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
  usb: core: add option of only authorizing internal devices
  usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
  usb: xhci: Fix for Enabling USB ROLE SWITCH QUIRK on INTEL_SUNRISEPOINT_LP_XHCI
  usb: xhci: fix build warning - missing prototype
  usb: xhci: dbc: Fixing typo error.
  usb: xhci: remove unused member 'parent' in xhci_regset struct
  xhci: tegra: Prevent error pointer dereference
  USB: serial: option: add Telit ME910 ECM composition
  usb: core: Replace hardcoded check with inline function from usb.h
  usb: core: skip interfaces disabled in devicetree
  usb: typec: mux: remove redundant check on variable match
  ...
 2019-03-06 16:48:27 -08:00
Linus Torvalds 67e79a6dc2 TTY/Serial patches for 5.1-rc1 
Here is the "big" patchset for the tty/serial driver layer for 5.1-rc1.
 
 It's really not all that big, nothing major here.
 
 There are a lot of tiny driver fixes and updates, combined with other
 cleanups for different serial drivers and the vt layer.  Full details
 are in the shortlog.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the "big" patchset for the tty/serial driver layer for
  5.1-rc1.

  It's really not all that big, nothing major here.

  There are a lot of tiny driver fixes and updates, combined with other
  cleanups for different serial drivers and the vt layer. Full details
  are in the shortlog.

  All of these have been in linux-next with no reported issues"

* tag 'tty-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (70 commits)
  tty: xilinx_uartps: Correct return value in probe
  serial: sprd: Modify the baud rate calculation formula
  dt-bindings: serial: Add Milbeaut serial driver description
  serial: 8250_of: assume reg-shift of 2 for mrvl,mmp-uart
  serial: 8250_pxa: honor the port number from devicetree
  tty: hvc_xen: Mark expected switch fall-through
  tty: n_gsm: Mark expected switch fall-throughs
  tty: serial: msm_serial: Remove __init from msm_console_setup()
  tty: serial: samsung: Enable baud clock during initialisation
  serial: uartps: Fix stuck ISR if RX disabled with non-empty FIFO
  tty: serial: remove redundant likely annotation
  tty/n_hdlc: mark expected switch fall-through
  serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()
  serial: 8250_pci: Fix number of ports for ACCES serial cards
  vt: perform safe console erase in the right order
  tty/nozomi: use pci_iomap instead of ioremap_nocache
  tty/synclink: remove ISA support
  serial: 8250_pci: Replace custom code with pci_match_id()
  serial: max310x: Correction of the initial setting of the MODE1 bits for various supported ICs.
  serial: mps2-uart: Add parentheses around conditional in mps2_uart_shutdown
  ...
 2019-03-06 16:35:12 -08:00
Linus Torvalds e266ca36da Staging/IIO patches for 5.1-rc1 
Here is the big staging/iio driver pull request for 5.1-rc1.
 
 Lots of good IIO driver updates and cleanups in here as always.
 Combined with the removal of the xgifb driver, we have a net "loss" of
 over 9000 lines in the pull request, always a nice thing.
 
 As the outreachy application process is currently happening, there are
 loads of tiny checkpatch cleanup fixes all over the staging tree, which
 accounts for the majority of the fixups.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big staging/iio driver pull request for 5.1-rc1.

  Lots of good IIO driver updates and cleanups in here as always.
  Combined with the removal of the xgifb driver, we have a net "loss" of
  over 9000 lines in the pull request, always a nice thing.

  As the outreachy application process is currently happening, there are
  loads of tiny checkpatch cleanup fixes all over the staging tree,
  which accounts for the majority of the fixups"

* tag 'staging-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (341 commits)
  staging: mt7621-dma: remove license boilerplate text
  staging: mt7621-dma: add SPDX GPL-2.0+ license identifier
  Staging: ks7010: Replace typecast to int
  Staging: vt6655: Align a static function declaration
  staging: speakup: fix line over 80 characters.
  staging: mt7621-eth: Remove license boilerplate text
  staging: mt7621-eth: Add SPDX license identifier
  staging: ks7010: removed custom Michael MIC implementation.
  staging: rtl8192e: Fix space and suspect issue
  Staging: vt6655: Modify comment style of SPDX License Identifier
  Staging: vt6655: Modify comment style for SPDX-License-Identifier
  Staging: vt6655: Align a function declaration
  Staging: vt6655: Alignment of function declaration
  staging: rtl8712: Fix indentation issue
  staging: wilc1000: fix incorrent type in initializer
  staging: rtl8188eu: remove unused P2P_PRIVATE_IOCTL_SET_LEN
  staging: rtl8188eu: remove unused enum P2P_PROTO_WK_ID
  staging: rtl8723bs: Remove duplicated include from drv_types.h
  Staging: vt6655: Alignment should match open parenthesis
  staging: erofs: fix mis-acted TAIL merging behavior
  ...
 2019-03-06 16:29:27 -08:00
Linus Torvalds e431f2d74e Driver core patches for 5.1-rc1 
Here is the big driver core patchset for 5.1-rc1
 
 More patches than "normal" here this merge window, due to some work in
 the driver core by Alexander Duyck to rework the async probe
 functionality to work better for a number of devices, and independant
 work from Rafael for the device link functionality to make it work
 "correctly".
 
 Also in here is:
 	- lots of BUS_ATTR() removals, the macro is about to go away
 	- firmware test fixups
 	- ihex fixups and simplification
 	- component additions (also includes i915 patches)
 	- lots of minor coding style fixups and cleanups.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the big driver core patchset for 5.1-rc1

  More patches than "normal" here this merge window, due to some work in
  the driver core by Alexander Duyck to rework the async probe
  functionality to work better for a number of devices, and independant
  work from Rafael for the device link functionality to make it work
  "correctly".

  Also in here is:

   - lots of BUS_ATTR() removals, the macro is about to go away

   - firmware test fixups

   - ihex fixups and simplification

   - component additions (also includes i915 patches)

   - lots of minor coding style fixups and cleanups.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (65 commits)
  driver core: platform: remove misleading err_alloc label
  platform: set of_node in platform_device_register_full()
  firmware: hardcode the debug message for -ENOENT
  driver core: Add missing description of new struct device_link field
  driver core: Fix PM-runtime for links added during consumer probe
  drivers/component: kerneldoc polish
  async: Add cmdline option to specify drivers to be async probed
  driver core: Fix possible supplier PM-usage counter imbalance
  PM-runtime: Fix __pm_runtime_set_status() race with runtime resume
  driver: platform: Support parsing GpioInt 0 in platform_get_irq()
  selftests: firmware: fix verify_reqs() return value
  Revert "selftests: firmware: remove use of non-standard diff -Z option"
  Revert "selftests: firmware: add CONFIG_FW_LOADER_USER_HELPER_FALLBACK to config"
  device: Fix comment for driver_data in struct device
  kernfs: Allocating memory for kernfs_iattrs with kmem_cache.
  sysfs: remove unused include of kernfs-internal.h
  driver core: Postpone DMA tear-down until after devres release
  driver core: Document limitation related to DL_FLAG_RPM_ACTIVE
  PM-runtime: Take suppliers into account in __pm_runtime_set_status()
  device.h: Add __cold to dev_<level> logging functions
  ...
 2019-03-06 14:52:48 -08:00
Linus Torvalds 45763bf4bc Char/Misc driver patches for 5.1-rc1 
Here is the big char/misc driver patch pull request for 5.1-rc1.
 
 The largest thing by far is the new habanalabs driver for their AI
 accelerator chip.  For now it is in the drivers/misc directory but will
 probably move to a new directory soon along with other drivers of this
 type.
 
 Other than that, just the usual set of individual driver updates and
 fixes.  There's an "odd" merge in here from the DRM tree that they asked
 me to do as the MEI driver is starting to interact with the i915 driver,
 and it needed some coordination.  All of those patches have been
 properly acked by the relevant subsystem maintainers.
 
 All of these have been in linux-next with no reported issues, most for
 quite some time.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver patch pull request for 5.1-rc1.

  The largest thing by far is the new habanalabs driver for their AI
  accelerator chip. For now it is in the drivers/misc directory but will
  probably move to a new directory soon along with other drivers of this
  type.

  Other than that, just the usual set of individual driver updates and
  fixes. There's an "odd" merge in here from the DRM tree that they
  asked me to do as the MEI driver is starting to interact with the i915
  driver, and it needed some coordination. All of those patches have
  been properly acked by the relevant subsystem maintainers.

  All of these have been in linux-next with no reported issues, most for
  quite some time"

* tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (219 commits)
  habanalabs: adjust Kconfig to fix build errors
  habanalabs: use %px instead of %p in error print
  habanalabs: use do_div for 64-bit divisions
  intel_th: gth: Fix an off-by-one in output unassigning
  habanalabs: fix little-endian<->cpu conversion warnings
  habanalabs: use NULL to initialize array of pointers
  habanalabs: fix little-endian<->cpu conversion warnings
  habanalabs: soft-reset device if context-switch fails
  habanalabs: print pointer using %p
  habanalabs: fix memory leak with CBs with unaligned size
  habanalabs: return correct error code on MMU mapping failure
  habanalabs: add comments in uapi/misc/habanalabs.h
  habanalabs: extend QMAN0 job timeout
  habanalabs: set DMA0 completion to SOB 1007
  habanalabs: fix validation of WREG32 to DMA completion
  habanalabs: fix mmu cache registers init
  habanalabs: disable CPU access on timeouts
  habanalabs: add MMU DRAM default page mapping
  habanalabs: Dissociate RAZWI info from event types
  misc/habanalabs: adjust Kconfig to fix build errors
  ...
 2019-03-06 14:18:59 -08:00
Linus Torvalds da2577fe63 sound updates for 5.1 
We had again a busy development cycle with many new drivers as well as
 lots of core improvements / cleanups.  Let's go for highlights:
 
 ALSA core:
 - PCM locking scheme was refactored for reducing a global rwlock
 - PCM suspend is handled in the device type PM ops now; lots of
   explicit calls were reduced by this action
 - Cleanups about PCM buffer preallocation calls
 - Kill NULL device object in memory allocations
 - Lots of procfs API cleanups
 
 ASoC core:
 - Support for only powering up channels that are actively being used
 - Cleanups / fixes of topology API
 
 ASoC drivers:
 - MediaTek BTCVSD for a Bluetooth radio chip, which is the first such
   driver we've had upstream!
 - Quite a few improvements to simplify the generic card drivers,
   especially the merge of the SCU cards into the main generic drivers
 - Lots of fixes for probing on Intel systems to follow more standard
   styles
 - A big refresh and cleanup of the Samsung drivers
 - New drivers: Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341
   and CS35L26, Google ChromeOS embedded controllers, Ingenic JZ4725B,
   MediaTek BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328,
   Spreadtrum DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM
   formatters
 
 ALSA drivers:
 - Improvements of Tegra HD-audio controller driver for supporting new
   chips
 - HD-audio codec quirks for ALC294 S4 resume, ASUS laptop, Chrome
   headset button support and Dell workstations
 - Improved DSD support on USB-audio
 - Quirk for MOTU MicroBook II USB-audio
 - Support for Fireface UCX support and Solid State Logic Duende
   Classic/Mini
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Merge tag 'sound-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "We had again a busy development cycle with many new drivers as well as
  lots of core improvements / cleanups. Let's go for highlights:

  ALSA core:

   - PCM locking scheme was refactored for reducing a global rwlock

   - PCM suspend is handled in the device type PM ops now; lots of
     explicit calls were reduced by this action

   - Cleanups about PCM buffer preallocation calls

   - Kill NULL device object in memory allocations

   - Lots of procfs API cleanups

  ASoC core:

   - Support for only powering up channels that are actively being used

   - Cleanups / fixes of topology API

  ASoC drivers:

   - MediaTek BTCVSD for a Bluetooth radio chip, which is the first such
     driver we've had upstream!

   - Quite a few improvements to simplify the generic card drivers,
     especially the merge of the SCU cards into the main generic drivers

   - Lots of fixes for probing on Intel systems to follow more standard
     styles

   - A big refresh and cleanup of the Samsung drivers

   - New drivers: Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341
     and CS35L26, Google ChromeOS embedded controllers, Ingenic JZ4725B,
     MediaTek BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328,
     Spreadtrum DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM
     formatters

  ALSA drivers:

   - Improvements of Tegra HD-audio controller driver for supporting new
     chips

   - HD-audio codec quirks for ALC294 S4 resume, ASUS laptop, Chrome
     headset button support and Dell workstations

   - Improved DSD support on USB-audio

   - Quirk for MOTU MicroBook II USB-audio

   - Support for Fireface UCX support and Solid State Logic Duende
     Classic/Mini"

* tag 'sound-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (461 commits)
  ALSA: usb-audio: Add quirk for MOTU MicroBook II
  ASoC: stm32: i2s: skip useless write in slave mode
  ASoC: stm32: i2s: fix race condition in irq handler
  ASoC: stm32: i2s: remove useless callback
  ASoC: stm32: i2s: fix dma configuration
  ASoC: stm32: i2s: fix stream count management
  ASoC: stm32: i2s: fix 16 bit format support
  ASoC: stm32: i2s: fix IRQ clearing
  ASoC: qcom: Kconfig: fix dependency for sdm845
  ASoC: Intel: Boards: Add Maxim98373 support
  ASoC: rsnd: gen: fix SSI9 4/5/6/7 busif related register address
  ALSA: firewire-motu: fix construction of PCM frame for capture direction
  ALSA: bebob: use more identical mod_alias for Saffire Pro 10 I/O against Liquid Saffire 56
  ALSA: hda: Extend i915 component bind timeout
  ASoC: wm_adsp: Improve logging messages
  ASoC: wm_adsp: Add support for multiple compressed buffers
  ASoC: wm_adsp: Refactor compress stream initialisation
  ASoC: wm_adsp: Reorder some functions for improved clarity
  ASoC: wm_adsp: Factor out stripping padding from ADSP data
  ASoC: cs35l36: Fix an IS_ERR() vs NULL checking bug
  ...
 2019-03-06 14:10:46 -08:00
Linus Torvalds d276709ce6 ACPI updates for 5.1-rc1 
- Update the ACPICA code in the kernel to upstream revision 20190215
    including ACPI 6.3 support and more:
    * New predefined methods: _NBS, _NCH, _NIC, _NIH, and _NIG (Erik
      Schmauss).
    * Update of the PCC Identifier structure in PDTT (Erik Schmauss).
    * Support for new Generic Affinity Structure subtable in SRAT
      (Erik Schmauss).
    * New PCC operation region support (Erik Schmauss).
    * Support for GICC statistical profiling for MADT (Erik Schmauss).
    * New Error Disconnect Recover notification support (Erik Schmauss).
    * New PPTT Processor Structure Flags fields support (Erik Schmauss).
    * ACPI 6.3 HMAT updates (Erik Schmauss).
    * GTDT Revision 3 support (Erik Schmauss).
    * Legacy module-level code (MLC) support removal (Erik Schmauss).
    * Update/clarification of messages for control method failures
      (Bob Moore).
    * Warning on creation of a zero-length opregion (Bob Moore).
    * acpiexec option to dump extra info for memory leaks (Bob Moore).
    * More ACPI error to firmware error conversions (Bob Moore).
    * Debugger fix (Bob Moore).
    * Copyrights update (Bob Moore).
 
  - Clean up sleep states support code in ACPICA (Christoph Hellwig).
 
  - Rework in_nmi() handling in the APEI code and add suppor for the
    ARM Software Delegated Exception Interface (SDEI) to it (James
    Morse).
 
  - Fix possible out-of-bounds accesses in BERT-related core (Ross
    Lagerwall).
 
  - Fix the APEI code parsing HEST that includes a Deferred Machine
    Check subtable (Yazen Ghannam).
 
  - Use DEFINE_DEBUGFS_ATTRIBUTE for APEI-related debugfs files
    (YueHaibing).
 
  - Switch the APEI ERST code to the new generic UUID API (Andy
    Shevchenko).
 
  - Update the MAINTAINERS entry for APEI (Borislav Petkov).
 
  - Fix and clean up the ACPI EC driver (Rafael Wysocki, Zhang Rui).
 
  - Fix DMI checks handling in the ACPI backlight driver and add the
    "Lunch Box" chassis-type check to it (Hans de Goede).
 
  - Add support for using ACPI table overrides included in built-in
    initrd images (Shunyong Yang).
 
  - Update ACPI device enumeration to treat the PWM2 device as "always
    present" on Lenovo Yoga Book (Yauhen Kharuzhy).
 
  - Fix up the enumeration of device objects with the PRP0001 device
    ID (Andy Shevchenko).
 
  - Clean up PPTT parsing error messages (John Garry).
 
  - Clean up debugfs files creation handling (Greg Kroah-Hartman,
    Rafael Wysocki).
 
  - Clean up the ACPI DPTF Makefile (Masahiro Yamada).
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Merge tag 'acpi-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These are ACPICA updates including ACPI 6.3 support among other
  things, APEI updates including the ARM Software Delegated Exception
  Interface (SDEI) support, ACPI EC driver fixes and cleanups and other
  assorted improvements.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20190215
     including ACPI 6.3 support and more:
      * New predefined methods: _NBS, _NCH, _NIC, _NIH, and _NIG (Erik
        Schmauss).
      * Update of the PCC Identifier structure in PDTT (Erik Schmauss).
      * Support for new Generic Affinity Structure subtable in SRAT
        (Erik Schmauss).
      * New PCC operation region support (Erik Schmauss).
      * Support for GICC statistical profiling for MADT (Erik Schmauss).
      * New Error Disconnect Recover notification support (Erik
        Schmauss).
      * New PPTT Processor Structure Flags fields support (Erik
        Schmauss).
      * ACPI 6.3 HMAT updates (Erik Schmauss).
      * GTDT Revision 3 support (Erik Schmauss).
      * Legacy module-level code (MLC) support removal (Erik Schmauss).
      * Update/clarification of messages for control method failures
        (Bob Moore).
      * Warning on creation of a zero-length opregion (Bob Moore).
      * acpiexec option to dump extra info for memory leaks (Bob Moore).
      * More ACPI error to firmware error conversions (Bob Moore).
      * Debugger fix (Bob Moore).
      * Copyrights update (Bob Moore)

   - Clean up sleep states support code in ACPICA (Christoph Hellwig)

   - Rework in_nmi() handling in the APEI code and add suppor for the
     ARM Software Delegated Exception Interface (SDEI) to it (James
     Morse)

   - Fix possible out-of-bounds accesses in BERT-related core (Ross
     Lagerwall)

   - Fix the APEI code parsing HEST that includes a Deferred Machine
     Check subtable (Yazen Ghannam)

   - Use DEFINE_DEBUGFS_ATTRIBUTE for APEI-related debugfs files
     (YueHaibing)

   - Switch the APEI ERST code to the new generic UUID API (Andy
     Shevchenko)

   - Update the MAINTAINERS entry for APEI (Borislav Petkov)

   - Fix and clean up the ACPI EC driver (Rafael Wysocki, Zhang Rui)

   - Fix DMI checks handling in the ACPI backlight driver and add the
     "Lunch Box" chassis-type check to it (Hans de Goede)

   - Add support for using ACPI table overrides included in built-in
     initrd images (Shunyong Yang)

   - Update ACPI device enumeration to treat the PWM2 device as "always
     present" on Lenovo Yoga Book (Yauhen Kharuzhy)

   - Fix up the enumeration of device objects with the PRP0001 device ID
     (Andy Shevchenko)

   - Clean up PPTT parsing error messages (John Garry)

   - Clean up debugfs files creation handling (Greg Kroah-Hartman,
     Rafael Wysocki)

   - Clean up the ACPI DPTF Makefile (Masahiro Yamada)"

* tag 'acpi-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
  ACPI / bus: Respect PRP0001 when retrieving device match data
  ACPICA: Update version to 20190215
  ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting
  ACPICA: ACPI 6.3: add GTDT Revision 3 support
  ACPICA: ACPI 6.3: HMAT updates
  ACPICA: ACPI 6.3: PPTT add additional fields in Processor Structure Flags
  ACPICA: ACPI 6.3: add Error Disconnect Recover Notification value
  ACPICA: ACPI 6.3: MADT: add support for statistical profiling in GICC
  ACPICA: ACPI 6.3: add PCC operation region support for AML interpreter
  efi: cper: Fix possible out-of-bounds access
  ACPI: APEI: Fix possible out-of-bounds access to BERT region
  ACPICA: ACPI 6.3: SRAT: add Generic Affinity Structure subtable
  ACPICA: ACPI 6.3: Add Trigger order to PCC Identifier structure in PDTT
  ACPICA: ACPI 6.3: Adding predefined methods _NBS, _NCH, _NIC, _NIH, and _NIG
  ACPICA: Update/clarify messages for control method failures
  ACPICA: Debugger: Fix possible fault with the "test objects" command
  ACPICA: Interpreter: Emit warning for creation of a zero-length op region
  ACPICA: Remove legacy module-level code support
  ACPI / x86: Make PWM2 device always present at Lenovo Yoga Book
  ACPI / video: Extend chassis-type detection with a "Lunch Box" check
  ..
 2019-03-06 13:33:11 -08:00
Bjorn Helgaas 7e5b22ddb2 Merge branch 'remotes/lorenzo/pci/endpoint' 
- Use memcpy_fromio()/memcpy_toio() instead of plain memcpy() in PCI
    endpoint framework (Wen Yang)

  - Add interface to discover supported endpoint features to replace a
    bitfield that wasn't flexible enough (Kishon Vijay Abraham I)

  - Implement the new supported-feature interface for designware-plat,
    dra7xx, rockchip, cadence (Kishon Vijay Abraham I)

  - Fix issues with 64-bit BAR in endpoints (Kishon Vijay Abraham I)

  - Add layerscape endpoint mode support (Xiaowei Bao)

* remotes/lorenzo/pci/endpoint:
  misc: pci_endpoint_test: Add the layerscape EP device support
  PCI: layerscape: Add EP mode support
  arm64: dts: Add the PCIE EP node in dts
  dt-bindings: add DT binding for the layerscape PCIe controller with EP mode
  PCI: endpoint: Remove features member in struct pci_epc
  PCI: designware-plat: Remove setting epc->features in Designware plat EP driver
  PCI: rockchip: Remove pci_epf_linkup() from Rockchip EP driver
  PCI: cadence: Remove pci_epf_linkup() from Cadence EP driver
  PCI: pci-epf-test: Use pci_epc_get_features() to get EPC features
  PCI: pci-epf-test: Do not allocate next BARs memory if current BAR is 64Bit
  PCI: pci-epf-test: Remove setting epf_bar flags in function driver
  PCI: endpoint: Fix pci_epf_alloc_space() to set correct MEM TYPE flags
  PCI: endpoint: Add helper to get first unreserved BAR
  PCI: cadence: Populate ->get_features() cdns_pcie_epc_ops
  PCI: rockchip: Populate ->get_features() dw_pcie_ep_ops
  PCI: pci-dra7xx: Populate ->get_features() dw_pcie_ep_ops
  PCI: designware-plat: Populate ->get_features() dw_pcie_ep_ops
  PCI: dwc: Add ->get_features() callback function to dw_pcie_ep_ops
  PCI: endpoint: Add new pci_epc_ops to get EPC features
  PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio()
 2019-03-06 15:30:21 -06:00
Bjorn Helgaas 2506419e06 Merge branch 'remotes/lorenzo/pci/dwc' 
- Add dra72x/dra74x/dra76x SoC compatible strings (Kishon Vijay
    Abraham I)

  - Enable x2 mode support for dra72x/dra74x/dra76x SoC (Kishon Vijay
    Abraham I)

  - Configure dra7xx PHY to PCIe mode (Kishon Vijay Abraham I)

  - Simplify dwc (remove unnecessary header includes, name variables
    consistently, reduce inverted logic, etc) (Gustavo Pimentel)

  - Add i.MX8MQ support (Andrey Smirnov)

  - Add message to help debug dwc MSI-X mask bit errors (Gustavo Pimentel)

  - Work around imx7d PCIe PLL erratum (Trent Piepho)

  - Don't assert qcom reset GPIO during probe (Bjorn Andersson)

  - Skip dwc MSI init if MSIs have been disabled (Lucas Stach)

* remotes/lorenzo/pci/dwc:
  PCI: dwc: skip MSI init if MSIs have been explicitly disabled
  PCI: dwc: Remove superfluous shifting in definitions
  PCI: dwc: Make use of GENMASK/FIELD_PREP
  PCI: dwc: Make use of BIT() in constant definitions
  PCI: dwc: Share code for dw_pcie_rd/wr_other_conf()
  PCI: dwc: Make use of IS_ALIGNED()
  PCI: imx6: Add code to request/control "pcie_aux" clock for i.MX8MQ
  dt-bindings: imx6q-pcie: Add "pcie_aux" clock for imx8mq
  PCI: qcom: Don't deassert reset GPIO during probe
  PCI: imx: Add workaround for e10728, IMX7d PCIe PLL failure
  ARM: dts: imx7d: Add node for PCIe PHY
  dt-bindings: imx6q-pcie: Add description of imx7d pcie phy
  PCI: dwc: Print debug error message when MSI-X entry control mask bit is set
  PCI: imx6: Add support for i.MX8MQ
  PCI: imx6: Convert DIRECT_SPEED_CHANGE quirk code to use a flag
  PCI: imx6: Mark PHY functions as i.MX6 specific
  PCI: imx6: Introduce drvdata
  PCI: dwc: Replace bit rotation operation (1 << bit) with BIT(bit)
  PCI: dwc: Improve code readability and simplify mask/unmask operations
  PCI: dwc: Rename variable name from data to d on dw_pcie_irq_domain_free()
  PCI: dwc: Rename variable name from data to d on dw_pci_msi_set_affinity()
  PCI: dwc: Rename variable name from data to d on dw_pci_setup_msi_msg()
  PCI: dwc: Rename variable name from data to d on dw_pci_bottom_mask/unmask()
  PCI: dwc: Remove unnecessary header include (signal.h)
  PCI: dwc: Remove unnecessary header include (of_gpio.h)
  PCI: dwc: dra7xx: Invoke phy_set_mode() API to set PHY mode to PHY_MODE_PCIE
  PCI: dwc: dra7xx: Enable x2 mode support for dra74x, dra76x and dra72x
  dt-bindings: PCI: dra7xx: Add properties to enable x2 lane in dra7
  dt-bindings: PCI: dra7xx: Add SoC specific compatible strings
 2019-03-06 15:30:19 -06:00
Bjorn Helgaas 0c65bb7ae9 Merge branch 'remotes/lorenzo/pci/dt' 
- Add DT support for R-Car RZ/G2E (R8A774C0) (Fabrizio Castro)

* remotes/lorenzo/pci/dt:
  dt-bindings: PCI: rcar: Add device tree support for r8a774c0
 2019-03-06 15:30:18 -06:00
Linus Torvalds ef8006846a Power management updates for 5.1-rc1 
- Update the PM-runtime framework to use ktime instead of
    jiffies for accounting (Thara Gopinath, Vincent Guittot).
 
  - Optimize the autosuspend code in the PM-runtime framework
    somewhat (Ladislav Michl).
 
  - Add a PM core flag to mark devices that don't need any form of
    power management (Sudeep Holla).
 
  - Introduce driver API documentation for cpuidle and add a new
    cpuidle governor for tickless systems (Rafael Wysocki).
 
  - Add Jacobsville support to the intel_idle driver (Zhang Rui).
 
  - Clean up a cpuidle core header file and the cpuidle-dt and ACPI
    processor-idle drivers (Yangtao Li, Joseph Lo, Yazen Ghannam).
 
  - Add new cpufreq driver for Armada 8K (Gregory Clement).
 
  - Fix and clean up cpufreq core (Rafael Wysocki, Viresh Kumar,
    Amit Kucheria).
 
  - Add support for light-weight tear-down and bring-up of CPUs to the
    cpufreq core and use it in the cpufreq-dt driver (Viresh Kumar).
 
  - Fix cpu_cooling Kconfig dependencies, add support for CPU cooling
    auto-registration to the cpufreq core and use it in multiple
    cpufreq drivers (Amit Kucheria).
 
  - Fix some minor issues and do some cleanups in the davinci,
    e_powersaver, ap806, s5pv210, qcom and kryo cpufreq drivers
    (Bartosz Golaszewski, Gustavo Silva, Julia Lawall, Paweł Chmiel,
    Taniya Das, Viresh Kumar).
 
  - Add a Hisilicon CPPC quirk to the cppc_cpufreq driver (Xiongfeng
    Wang).
 
  - Clean up the intel_pstate and acpi-cpufreq drivers (Erwan Velu,
    Rafael Wysocki).
 
  - Clean up multiple cpufreq drivers (Yangtao Li).
 
  - Update cpufreq-related MAINTAINERS entries (Baruch Siach, Lukas
    Bulwahn).
 
  - Add support for exposing the Energy Model via debugfs and make
    multiple cpufreq drivers register an Energy Model to support
    energy-aware scheduling (Quentin Perret, Dietmar Eggemann,
    Matthias Kaehlcke).
 
  - Add Ice Lake mobile and Jacobsville support to the Intel RAPL
    power-capping driver (Gayatri Kammela, Zhang Rui).
 
  - Add a power estimation helper to the operating performance points
    (OPP) framework and clean up a core function in it (Quentin Perret,
    Viresh Kumar).
 
  - Make minor improvements in the generic power domains (genpd), OPP
    and system suspend frameworks and in the PM core (Aditya Pakki,
    Douglas Anderson, Greg Kroah-Hartman, Rafael Wysocki, Yangtao Li).
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Merge tag 'pm-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These are PM-runtime framework changes to use ktime instead of jiffies
  for accounting, new PM core flag to mark devices that don't need any
  form of power management, cpuidle updates including driver API
  documentation and a new governor, cpufreq updates including a new
  driver for Armada 8K, thermal cleanups and more, some energy-aware
  scheduling (EAS) enabling changes, new chips support in the intel_idle
  and RAPL drivers and assorted cleanups in some other places.

  Specifics:

   - Update the PM-runtime framework to use ktime instead of jiffies for
     accounting (Thara Gopinath, Vincent Guittot)

   - Optimize the autosuspend code in the PM-runtime framework somewhat
     (Ladislav Michl)

   - Add a PM core flag to mark devices that don't need any form of
     power management (Sudeep Holla)

   - Introduce driver API documentation for cpuidle and add a new
     cpuidle governor for tickless systems (Rafael Wysocki)

   - Add Jacobsville support to the intel_idle driver (Zhang Rui)

   - Clean up a cpuidle core header file and the cpuidle-dt and ACPI
     processor-idle drivers (Yangtao Li, Joseph Lo, Yazen Ghannam)

   - Add new cpufreq driver for Armada 8K (Gregory Clement)

   - Fix and clean up cpufreq core (Rafael Wysocki, Viresh Kumar, Amit
     Kucheria)

   - Add support for light-weight tear-down and bring-up of CPUs to the
     cpufreq core and use it in the cpufreq-dt driver (Viresh Kumar)

   - Fix cpu_cooling Kconfig dependencies, add support for CPU cooling
     auto-registration to the cpufreq core and use it in multiple
     cpufreq drivers (Amit Kucheria)

   - Fix some minor issues and do some cleanups in the davinci,
     e_powersaver, ap806, s5pv210, qcom and kryo cpufreq drivers
     (Bartosz Golaszewski, Gustavo Silva, Julia Lawall, Paweł Chmiel,
     Taniya Das, Viresh Kumar)

   - Add a Hisilicon CPPC quirk to the cppc_cpufreq driver (Xiongfeng
     Wang)

   - Clean up the intel_pstate and acpi-cpufreq drivers (Erwan Velu,
     Rafael Wysocki)

   - Clean up multiple cpufreq drivers (Yangtao Li)

   - Update cpufreq-related MAINTAINERS entries (Baruch Siach, Lukas
     Bulwahn)

   - Add support for exposing the Energy Model via debugfs and make
     multiple cpufreq drivers register an Energy Model to support
     energy-aware scheduling (Quentin Perret, Dietmar Eggemann, Matthias
     Kaehlcke)

   - Add Ice Lake mobile and Jacobsville support to the Intel RAPL
     power-capping driver (Gayatri Kammela, Zhang Rui)

   - Add a power estimation helper to the operating performance points
     (OPP) framework and clean up a core function in it (Quentin Perret,
     Viresh Kumar)

   - Make minor improvements in the generic power domains (genpd), OPP
     and system suspend frameworks and in the PM core (Aditya Pakki,
     Douglas Anderson, Greg Kroah-Hartman, Rafael Wysocki, Yangtao Li)"

* tag 'pm-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (80 commits)
  cpufreq: kryo: Release OPP tables on module removal
  cpufreq: ap806: add missing of_node_put after of_device_is_available
  cpufreq: acpi-cpufreq: Report if CPU doesn't support boost technologies
  cpufreq: Pass updated policy to driver ->setpolicy() callback
  cpufreq: Fix two debug messages in cpufreq_set_policy()
  cpufreq: Reorder and simplify cpufreq_update_policy()
  cpufreq: Add kerneldoc comments for two core functions
  PM / core: Add support to skip power management in device/driver model
  cpufreq: intel_pstate: Rework iowait boosting to be less aggressive
  cpufreq: intel_pstate: Eliminate intel_pstate_get_base_pstate()
  cpufreq: intel_pstate: Avoid redundant initialization of local vars
  powercap/intel_rapl: add Ice Lake mobile
  ACPI / processor: Set P_LVL{2,3} idle state descriptions
  cpufreq / cppc: Work around for Hisilicon CPPC cpufreq
  ACPI / CPPC: Add a helper to get desired performance
  cpufreq: davinci: move configuration to include/linux/platform_data
  cpufreq: speedstep: convert BUG() to BUG_ON()
  cpufreq: powernv: fix missing check of return value in init_powernv_pstates()
  cpufreq: longhaul: remove unneeded semicolon
  cpufreq: pcc-cpufreq: remove unneeded semicolon
  ..
 2019-03-06 12:59:46 -08:00
Linus Torvalds 8dcd175bc3 Merge branch 'akpm' (patches from Andrew) 
Merge misc updates from Andrew Morton:

 - a few misc things

 - ocfs2 updates

 - most of MM

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (159 commits)
  tools/testing/selftests/proc/proc-self-syscall.c: remove duplicate include
  proc: more robust bulk read test
  proc: test /proc/*/maps, smaps, smaps_rollup, statm
  proc: use seq_puts() everywhere
  proc: read kernel cpu stat pointer once
  proc: remove unused argument in proc_pid_lookup()
  fs/proc/thread_self.c: code cleanup for proc_setup_thread_self()
  fs/proc/self.c: code cleanup for proc_setup_self()
  proc: return exit code 4 for skipped tests
  mm,mremap: bail out earlier in mremap_to under map pressure
  mm/sparse: fix a bad comparison
  mm/memory.c: do_fault: avoid usage of stale vm_area_struct
  writeback: fix inode cgroup switching comment
  mm/huge_memory.c: fix "orig_pud" set but not used
  mm/hotplug: fix an imbalance with DEBUG_PAGEALLOC
  mm/memcontrol.c: fix bad line in comment
  mm/cma.c: cma_declare_contiguous: correct err handling
  mm/page_ext.c: fix an imbalance with kmemleak
  mm/compaction: pass pgdat to too_many_isolated() instead of zone
  mm: remove zone_lru_lock() function, access ->lru_lock directly
  ...
 2019-03-06 10:31:36 -08:00
Linus Torvalds 64b1b217f1 ARM: New SoC family support 
Two new SoC families are added this time.
 
 Sugaya Taichi submitted support for the Milbeaut SoC family from
 Socionext and explains:
 
  "SC2000 is a SoC of the Milbeaut series. equipped with a DSP optimized for
   computer vision. It also features advanced functionalities such as 360-degree,
   real-time spherical stitching with multi cameras, image stabilization for
   without mechanical gimbals, and rolling shutter correction. More detail is
   below:
   https://www.socionext.com/en/products/assp/milbeaut/SC2000.html"
 
 Interestingly, this one has a history dating back to older chips
 made by Socionext and previously Matsushita/Panasonic based on their
 own mn10300 CPU architecture that was removed from the kernel last year.
 
 Manivannan Sadhasivam adds support for another SoC family, this is the
 Bitmain BM1880 chip used in the Sophon Edge TPU developer board.
 The chip is intended for Deep Learning applications, and comes
 with dual-core Arm Cortex-A53 to run Linux as well as a RISC-V
 microcontroller core to control the tensor unit.
 For the moment, the TPU is not accessible in mainline Linux, so
 we treat it as a generic Arm SoC.
 More information is available at https://www.sophon.ai/
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM new SoC family support from Arnd Bergmann:
 "Two new SoC families are added this time.

  Sugaya Taichi submitted support for the Milbeaut SoC family from
  Socionext and explains:

    "SC2000 is a SoC of the Milbeaut series. equipped with a DSP
     optimized for computer vision. It also features advanced
     functionalities such as 360-degree, real-time spherical stitching
     with multi cameras, image stabilization for without mechanical
     gimbals, and rolling shutter correction. More detail is below:

       https://www.socionext.com/en/products/assp/milbeaut/SC2000.html"

  Interestingly, this one has a history dating back to older chips made
  by Socionext and previously Matsushita/Panasonic based on their own
  mn10300 CPU architecture that was removed from the kernel last year.

  Manivannan Sadhasivam adds support for another SoC family, this is the
  Bitmain BM1880 chip used in the Sophon Edge TPU developer board.

  The chip is intended for Deep Learning applications, and comes with
  dual-core Arm Cortex-A53 to run Linux as well as a RISC-V
  microcontroller core to control the tensor unit. For the moment, the
  TPU is not accessible in mainline Linux, so we treat it as a generic
  Arm SoC.

  More information is available at

       https://www.sophon.ai/"

* tag 'armsoc-newsoc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: multi_v7_defconfig: add ARCH_MILBEAUT and ARCH_MILBEAUT_M10V
  ARM: configs: Add Milbeaut M10V defconfig
  ARM: dts: milbeaut: Add device tree set for the Milbeaut M10V board
  clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs
  dt-bindings: timer: Add Milbeaut M10V timer description
  ARM: milbeaut: Add basic support for Milbeaut m10v SoC
  dt-bindings: Add documentation for Milbeaut SoCs
  dt-bindings: arm: Add SMP enable-method for Milbeaut
  dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram
  MAINTAINERS: Add entry for Bitmain SoC platform
  arm64: dts: bitmain: Add Sophon Egde board support
  arm64: dts: bitmain: Add BM1880 SoC support
  arm64: Add ARCH_BITMAIN platform
  dt-bindings: arm: Document Bitmain BM1880 SoC
 2019-03-06 10:15:42 -08:00
Linus Torvalds 384d11fa0e ARM: SoC driver updates for 5.1 
As usual, the drivers/tee and drivers/reset subsystems get merged
 here, with the expected set of smaller updates and some new hardware
 support. The tee subsystem now supports device drivers to be attached
 to a tee, the first example here is a random number driver with its
 implementation in the secure world.
 
 Three new power domain drivers get added for specific chip families:
  - Broadcom BCM283x chips (used in Raspberry Pi)
  - Qualcomm Snapdragon phone chips
  - Xilinx ZynqMP FPGA SoCs
 
 One new driver is added to talk to the BPMP firmware on NVIDIA
 Tegra210
 
 Existing drivers are extended for new SoC variants from NXP,
 NVIDIA, Amlogic and Qualcomm.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "As usual, the drivers/tee and drivers/reset subsystems get merged
  here, with the expected set of smaller updates and some new hardware
  support. The tee subsystem now supports device drivers to be attached
  to a tee, the first example here is a random number driver with its
  implementation in the secure world.

  Three new power domain drivers get added for specific chip families:
   - Broadcom BCM283x chips (used in Raspberry Pi)
   - Qualcomm Snapdragon phone chips
   - Xilinx ZynqMP FPGA SoCs

  One new driver is added to talk to the BPMP firmware on NVIDIA
  Tegra210

  Existing drivers are extended for new SoC variants from NXP, NVIDIA,
  Amlogic and Qualcomm"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (113 commits)
  tee: optee: update optee_msg.h and optee_smc.h to dual license
  tee: add cancellation support to client interface
  dpaa2-eth: configure the cache stashing amount on a queue
  soc: fsl: dpio: configure cache stashing destination
  soc: fsl: dpio: enable frame data cache stashing per software portal
  soc: fsl: guts: make fsl_guts_get_svr() static
  hwrng: make symbol 'optee_rng_id_table' static
  tee: optee: Fix unsigned comparison with less than zero
  hwrng: Fix unsigned comparison with less than zero
  tee: fix possible error pointer ctx dereferencing
  hwrng: optee: Initialize some structs using memset instead of braces
  tee: optee: Initialize some structs using memset instead of braces
  soc: fsl: dpio: fix memory leak of a struct qbman on error exit path
  clk: tegra: dfll: Make symbol 'tegra210_cpu_cvb_tables' static
  soc: qcom: llcc-slice: Fix typos
  qcom: soc: llcc-slice: Consolidate some code
  qcom: soc: llcc-slice: Clear the global drv_data pointer on error
  drivers: soc: xilinx: Add ZynqMP power domain driver
  firmware: xilinx: Add APIs to control node status/power
  dt-bindings: power: Add ZynqMP power domain bindings
  ...
 2019-03-06 09:41:12 -08:00
Linus Torvalds 6ad63dec9c ARM: SoC device tree updates for 5.1 
This is a smaller update than the past few times, but with just over
 500 non-merge changesets still dwarfes the rest of the SoC tree.
 
 Three new SoC platforms get added, each one a follow-up to an existing
 product, and added here in combination with a reference platform:
 
  - Renesas RZ/A2M (R7S9210) 32-bit Cortex-A9 Real-time imaging processor
    https://www.renesas.com/eu/en/products/microcontrollers-microprocessors/rz/rza/rza2m.html
 
  - Renesas RZ/G2E (r8a774c0) 64-bit Cortex-A53 SoC "for
    Rich Graphics Applications".
    https://www.renesas.com/eu/en/products/microcontrollers-microprocessors/rz/rzg/rzg2e.html
 
  - NXP i.MX8QuadXPlus 64-bit Cortex-A35 SoC
    https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-8-processors/i.mx-8x-family-arm-cortex-a35-3d-graphics-4k-video-dsp-error-correcting-code-on-ddr:i.MX8X
 
 These are actual commercial products we now support with an in-kernel
 device tree source file:
 
  - Bosch Guardian is a product made by Bosch Power
    Tools GmbH, based on the Texas Instruments AM335x chip
 
  - Winterland IceBoard is a Texas Instruments AM3874 based
    machine used in telescopes at the south pole and elsewhere, see commit
    d031773169 for some pointers:
 
  - Inspur on5263m5 is an x86 server platform with an Aspeed
    ast2500 baseboard management controller. This is for running on
    the BMC.
 
  - Zodiac Digital Tapping Unit, apparently a kind of ethernet
    switch used in airplanes.
 
  - Phicomm K3 is a WiFi router based on Broadcom bcm47094
 
  - Methode Electronics uDPU FTTdp distribution point unit
 
  - X96 Max, a generic TV box based on Amlogic G12a (S905X2)
 
  - NVIDIA Shield TV (Darcy) based on Tegra210
 
 And then there are several new SBC, evaluation, development or modular
 systems that we add:
 
  - Three new Rockchips rk3399 based boards:
     - FriendlyElec NanoPC-T4 and NanoPi M4
     - Radxa ROCK Pi 4
 
  - Five new i.MX6 family SoM modules and boards for industrial
    products:
     - Logic PD i.MX6QD SoM and evaluation baseboad
     - Y Soft IOTA Draco/Hydra/Ursa family boards based on i.MX6DL
     - Phytec phyCORE i.MX6 UltraLite SoM and evaluation module
 
  - MYIR Tech MYD-LPC4357 development based on the NXP lpc4357
    microcontroller
 
  - Chameleon96, an Intel/Altera Cyclone5 based FPGA development
    system in 96boards form factor
 
  - Arm Fixed Virtual Platforms(FVP) Base RevC, a purely
    virtual platform for corresponding to the latest "fast model"
 
  - Another Raspberry Pi variant: Model 3 A+, supported both
    in 32-bit and 64-bit mode.
 
  - Oxalis Evalkit V100 based on NXP Layerscape LS1012a,
    in 96Boards enterprise form factor
 
  - Elgin RV1108 R1 development board based on 32-bit Rockchips RV1108
 
 For already supported boards and SoCs, we often add support for new
 devices after merging the drivers. This time, the largest changes include
 updates for
 
  - STMicroelectronics stm32mp1, which was now formally
    launched last week
 
  - Qualcomm Snapdragon 845, a high-end phone and low-end laptop chip
 
  - Action Semi S700
 
  - TI AM654x, their recently merged 64-bit SoC from the OMAP family
 
  - Various Amlogic Meson SoCs
 
  - Mediatek MT2712
 
  - NVIDIA Tegra186 and Tegra210
 
  - The ancient NXP lpc32xx family
 
  - Samsung s5pv210, used in some older mobile phones
 
 Many other chips see smaller updates and bugfixes beyond that.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC device tree updates from Arnd Bergmann:
 "This is a smaller update than the past few times, but with just over
  500 non-merge changesets still dwarfes the rest of the SoC tree.

  Three new SoC platforms get added, each one a follow-up to an existing
  product, and added here in combination with a reference platform:

   - Renesas RZ/A2M (R7S9210) 32-bit Cortex-A9 Real-time imaging
     processor:

       https://www.renesas.com/eu/en/products/microcontrollers-microprocessors/rz/rza/rza2m.html

   - Renesas RZ/G2E (r8a774c0) 64-bit Cortex-A53 SoC "for Rich Graphics
     Applications":

       https://www.renesas.com/eu/en/products/microcontrollers-microprocessors/rz/rzg/rzg2e.html

   - NXP i.MX8QuadXPlus 64-bit Cortex-A35 SoC:

       https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-8-processors/i.mx-8x-family-arm-cortex-a35-3d-graphics-4k-video-dsp-error-correcting-code-on-ddr:i.MX8X

  These are actual commercial products we now support with an in-kernel
  device tree source file:

   - Bosch Guardian is a product made by Bosch Power Tools GmbH, based
     on the Texas Instruments AM335x chip

   - Winterland IceBoard is a Texas Instruments AM3874 based machine
     used in telescopes at the south pole and elsewhere, see commit
     d031773169 for some pointers:

   - Inspur on5263m5 is an x86 server platform with an Aspeed ast2500
     baseboard management controller. This is for running on the BMC.

   - Zodiac Digital Tapping Unit, apparently a kind of ethernet switch
     used in airplanes.

   - Phicomm K3 is a WiFi router based on Broadcom bcm47094

   - Methode Electronics uDPU FTTdp distribution point unit

   - X96 Max, a generic TV box based on Amlogic G12a (S905X2)

   - NVIDIA Shield TV (Darcy) based on Tegra210

  And then there are several new SBC, evaluation, development or modular
  systems that we add:

   - Three new Rockchips rk3399 based boards:
       - FriendlyElec NanoPC-T4 and NanoPi M4
       - Radxa ROCK Pi 4

   - Five new i.MX6 family SoM modules and boards for industrial
     products:
       - Logic PD i.MX6QD SoM and evaluation baseboad
       - Y Soft IOTA Draco/Hydra/Ursa family boards based on i.MX6DL
       - Phytec phyCORE i.MX6 UltraLite SoM and evaluation module

   - MYIR Tech MYD-LPC4357 development based on the NXP lpc4357
     microcontroller

   - Chameleon96, an Intel/Altera Cyclone5 based FPGA development system
     in 96boards form factor

   - Arm Fixed Virtual Platforms(FVP) Base RevC, a purely virtual
     platform for corresponding to the latest "fast model"

   - Another Raspberry Pi variant: Model 3 A+, supported both in 32-bit
     and 64-bit mode.

   - Oxalis Evalkit V100 based on NXP Layerscape LS1012a, in 96Boards
     enterprise form factor

   - Elgin RV1108 R1 development board based on 32-bit Rockchips RV1108

  For already supported boards and SoCs, we often add support for new
  devices after merging the drivers. This time, the largest changes
  include updates for

   - STMicroelectronics stm32mp1, which was now formally launched last
     week

   - Qualcomm Snapdragon 845, a high-end phone and low-end laptop chip

   - Action Semi S700

   - TI AM654x, their recently merged 64-bit SoC from the OMAP family

   - Various Amlogic Meson SoCs

   - Mediatek MT2712

   - NVIDIA Tegra186 and Tegra210

   - The ancient NXP lpc32xx family

   - Samsung s5pv210, used in some older mobile phones

  Many other chips see smaller updates and bugfixes beyond that"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (506 commits)
  ARM: dts: exynos: Fix max voltage for buck8 regulator on Odroid XU3/XU4
  dt-bindings: net: ti: deprecate cpsw-phy-sel bindings
  ARM: dts: am335x: switch to use phy-gmii-sel
  ARM: dts: am4372: switch to use phy-gmii-sel
  ARM: dts: dm814x: switch to use phy-gmii-sel
  ARM: dts: dra7: switch to use phy-gmii-sel
  arch: arm: dts: kirkwood-rd88f6281: Remove disabled marvell,dsa reference
  ARM: dts: exynos: Add support for secondary DAI to Odroid XU4
  ARM: dts: exynos: Add support for secondary DAI to Odroid XU3
  ARM: dts: exynos: Disable ARM PMU on Odroid XU3-lite
  ARM: dts: exynos: Add stdout path property to Arndale board
  ARM: dts: exynos: Add minimal clkout parameters to Exynos3250 PMU
  ARM: dts: exynos: Enable ADC on Odroid HC1
  arm64: dts: sprd: Remove wildcard compatible string
  arm64: dts: sprd: Add SC27XX fuel gauge device
  arm64: dts: sprd: Add SC2731 charger device
  arm64: dts: sprd: Add ADC calibration support
  arm64: dts: sprd: Remove PMIC INTC irq trigger type
  arm64: dts: rockchip: Enable tsadc device on rock960
  ARM: dts: rockchip: add chosen node on veyron devices
  ...
 2019-03-06 09:36:37 -08:00
Jonathan Corbet 4064174bec docs: Bring some order to filesystem documentation 
Documentation/filesystems is, like much of the rest of the kernel's
documentation, a jumble of unorganized information.  Split the
documentation into categories and try to bring some order to the top-level
index.rst files.  No text changes other than a few section-introductory
blurbs; this is all just moving stuff around.

Cc: linux-fsdevel@vger.kernel.org
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2019-03-06 09:46:10 -07:00
Cornelia Huck 8457fdfeb1 virtio-ccw: diag 500 may return a negative cookie 
If something goes wrong in the kvm io bus handling, the virtio-ccw
diagnose may return a negative error value in the cookie gpr.

Document this.

Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2019-03-06 11:19:33 -05:00
Joerg Roedel 133d624b1c dma: Introduce dma_max_mapping_size() 
The function returns the maximum size that can be mapped
using DMA-API functions. The patch also adds the
implementation for direct DMA and a new dma_map_ops pointer
so that other implementations can expose their limit.

Cc: stable@vger.kernel.org
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2019-03-06 11:19:11 -05:00
Linus Torvalds 45802da05e Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull scheduler updates from Ingo Molnar:
 "The main changes in this cycle were:

   - refcount conversions

   - Solve the rq->leaf_cfs_rq_list can of worms for real.

   - improve power-aware scheduling

   - add sysctl knob for Energy Aware Scheduling

   - documentation updates

   - misc other changes"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
  kthread: Do not use TIMER_IRQSAFE
  kthread: Convert worker lock to raw spinlock
  sched/fair: Use non-atomic cpumask_{set,clear}_cpu()
  sched/fair: Remove unused 'sd' parameter from select_idle_smt()
  sched/wait: Use freezable_schedule() when possible
  sched/fair: Prune, fix and simplify the nohz_balancer_kick() comment block
  sched/fair: Explain LLC nohz kick condition
  sched/fair: Simplify nohz_balancer_kick()
  sched/topology: Fix percpu data types in struct sd_data & struct s_data
  sched/fair: Simplify post_init_entity_util_avg() by calling it with a task_struct pointer argument
  sched/fair: Fix O(nr_cgroups) in the load balancing path
  sched/fair: Optimize update_blocked_averages()
  sched/fair: Fix insertion in rq->leaf_cfs_rq_list
  sched/fair: Add tmp_alone_branch assertion
  sched/core: Use READ_ONCE()/WRITE_ONCE() in move_queued_task()/task_rq_lock()
  sched/debug: Initialize sd_sysctl_cpus if !CONFIG_CPUMASK_OFFSTACK
  sched/pelt: Skip updating util_est when utilization is higher than CPU's capacity
  sched/fair: Update scale invariance of PELT
  sched/fair: Move the rq_of() helper function
  sched/core: Convert task_struct.stack_refcount to refcount_t
  ...
 2019-03-06 08:14:05 -08:00
Linus Torvalds 3478588b51 Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull locking updates from Ingo Molnar:
 "The biggest part of this tree is the new auto-generated atomics API
  wrappers by Mark Rutland.

  The primary motivation was to allow instrumentation without uglifying
  the primary source code.

  The linecount increase comes from adding the auto-generated files to
  the Git space as well:

    include/asm-generic/atomic-instrumented.h     | 1689 ++++++++++++++++--
    include/asm-generic/atomic-long.h             | 1174 ++++++++++---
    include/linux/atomic-fallback.h               | 2295 +++++++++++++++++++++++++
    include/linux/atomic.h                        | 1241 +------------

  I preferred this approach, so that the full call stack of the (already
  complex) locking APIs is still fully visible in 'git grep'.

  But if this is excessive we could certainly hide them.

  There's a separate build-time mechanism to determine whether the
  headers are out of date (they should never be stale if we do our job
  right).

  Anyway, nothing from this should be visible to regular kernel
  developers.

  Other changes:

   - Add support for dynamic keys, which removes a source of false
     positives in the workqueue code, among other things (Bart Van
     Assche)

   - Updates to tools/memory-model (Andrea Parri, Paul E. McKenney)

   - qspinlock, wake_q and lockdep micro-optimizations (Waiman Long)

   - misc other updates and enhancements"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits)
  locking/lockdep: Shrink struct lock_class_key
  locking/lockdep: Add module_param to enable consistency checks
  lockdep/lib/tests: Test dynamic key registration
  lockdep/lib/tests: Fix run_tests.sh
  kernel/workqueue: Use dynamic lockdep keys for workqueues
  locking/lockdep: Add support for dynamic keys
  locking/lockdep: Verify whether lock objects are small enough to be used as class keys
  locking/lockdep: Check data structure consistency
  locking/lockdep: Reuse lock chains that have been freed
  locking/lockdep: Fix a comment in add_chain_cache()
  locking/lockdep: Introduce lockdep_next_lockchain() and lock_chain_count()
  locking/lockdep: Reuse list entries that are no longer in use
  locking/lockdep: Free lock classes that are no longer in use
  locking/lockdep: Update two outdated comments
  locking/lockdep: Make it easy to detect whether or not inside a selftest
  locking/lockdep: Split lockdep_free_key_range() and lockdep_reset_lock()
  locking/lockdep: Initialize the locks_before and locks_after lists earlier
  locking/lockdep: Make zap_class() remove all matching lock order entries
  locking/lockdep: Reorder struct lock_class members
  locking/lockdep: Avoid that add_chain_cache() adds an invalid chain to the cache
  ...
 2019-03-06 07:17:17 -08:00
Linus Torvalds c8f5ed6ef9 Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull EFI updates from Ingo Molnar:
 "The main EFI changes in this cycle were:

   - Use 32-bit alignment for efi_guid_t

   - Allow the SetVirtualAddressMap() call to be omitted

   - Implement earlycon=efifb based on existing earlyprintk code

   - Various minor fixes and code cleanups from Sai, Ard and me"

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: Fix build error due to enum collision between efi.h and ima.h
  efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation
  x86: Make ARCH_USE_MEMREMAP_PROT a generic Kconfig symbol
  efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted
  efi: Replace GPL license boilerplate with SPDX headers
  efi/fdt: Apply more cleanups
  efi: Use 32-bit alignment for efi_guid_t
  efi/memattr: Don't bail on zero VA if it equals the region's PA
  x86/efi: Mark can_free_region() as an __init function
 2019-03-06 07:13:56 -08:00
Andrey Ryabinin f4b7e272b5 mm: remove zone_lru_lock() function, access ->lru_lock directly 
We have common pattern to access lru_lock from a page pointer:
	zone_lru_lock(page_zone(page))

Which is silly, because it unfolds to this:
	&NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)]->zone_pgdat->lru_lock
while we can simply do
	&NODE_DATA(page_to_nid(page))->lru_lock

Remove zone_lru_lock() function, since it's only complicate things.  Use
'page_pgdat(page)->lru_lock' pattern instead.

[aryabinin@virtuozzo.com: a slightly better version of __split_huge_page()]
  Link: http://lkml.kernel.org/r/20190301121651.7741-1-aryabinin@virtuozzo.com
Link: http://lkml.kernel.org/r/20190228083329.31892-2-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-05 21:07:21 -08:00
Chris Down 1ff9e6e179 mm: memcontrol: expose THP events on a per-memcg basis 
Currently THP allocation events data is fairly opaque, since you can
only get it system-wide.  This patch makes it easier to reason about
transparent hugepage behaviour on a per-memcg basis.

For anonymous THP-backed pages, we already have MEMCG_RSS_HUGE in v1,
which is used for v1's rss_huge [sic].  This is reused here as it's
fairly involved to untangle NR_ANON_THPS right now to make it per-memcg,
since right now some of this is delegated to rmap before we have any
memcg actually assigned to the page.  It's a good idea to rework that,
but let's leave untangling THP allocation for a future patch.

[akpm@linux-foundation.org: fix build]
[chris@chrisdown.name: fix memcontrol build when THP is disabled]
  Link: http://lkml.kernel.org/r/20190131160802.GA5777@chrisdown.name
Link: http://lkml.kernel.org/r/20190129205852.GA7310@chrisdown.name
Signed-off-by: Chris Down <chris@chrisdown.name>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-05 21:07:19 -08:00
David Hildenbrand ca215086b1 mm: convert PG_balloon to PG_offline 
PG_balloon was introduced to implement page migration/compaction for
pages inflated in virtio-balloon.  Nowadays, it is only a marker that a
page is part of virtio-balloon and therefore logically offline.

We also want to make use of this flag in other balloon drivers - for
inflated pages or when onlining a section but keeping some pages offline
(e.g.  used right now by XEN and Hyper-V via set_online_page_callback()).

We are going to expose this flag to dump tools like makedumpfile.  But
instead of exposing PG_balloon, let's generalize the concept of marking
pages as logically offline, so it can be reused for other purposes later
on.

Rename PG_balloon to PG_offline.  This is an indicator that the page is
logically offline, the content stale and that it should not be touched
(e.g.  a hypervisor would have to allocate backing storage in order for
the guest to dump an unused page).  We can then e.g.  exclude such pages
from dumps.

We replace and reuse KPF_BALLOON (23), as this shouldn't really harm
(and for now the semantics stay the same).  In following patches, we
will make use of this bit also in other balloon drivers.  While at it,
document PGTABLE.

[akpm@linux-foundation.org: fix comment text, per David]
Link: http://lkml.kernel.org/r/20181119101616.8901-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Pankaj gupta <pagupta@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Christian Hansen <chansen3@cisco.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Miles Chen <miles.chen@mediatek.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Kazuhito Hagio <k-hagio@ab.jp.nec.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Julien Freche <jfreche@vmware.com>
Cc: Kairui Song <kasong@redhat.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Lianbo Jiang <lijiang@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Nadav Amit <namit@vmware.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Xavier Deguillard <xdeguillard@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2019-03-05 21:07:14 -08:00
Chao Yu 7321dd97b5 f2fs: fix to document inline_xattr_size option 
We missed to add document for inline_xattr_size mount option in f2fs.txt,
add it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2019-03-05 19:58:05 -08:00
Linus Torvalds 3717f613f4 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull RCU updates from Ingo Molnar:
 "The main RCU related changes in this cycle were:

   - Additional cleanups after RCU flavor consolidation

   - Grace-period forward-progress cleanups and improvements

   - Documentation updates

   - Miscellaneous fixes

   - spin_is_locked() conversions to lockdep

   - SPDX changes to RCU source and header files

   - SRCU updates

   - Torture-test updates, including nolibc updates and moving nolibc to
     tools/include"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  locking/locktorture: Convert to SPDX license identifier
  linux/torture: Convert to SPDX license identifier
  torture: Convert to SPDX license identifier
  linux/srcu: Convert to SPDX license identifier
  linux/rcutree: Convert to SPDX license identifier
  linux/rcutiny: Convert to SPDX license identifier
  linux/rcu_sync: Convert to SPDX license identifier
  linux/rcu_segcblist: Convert to SPDX license identifier
  linux/rcupdate: Convert to SPDX license identifier
  linux/rcu_node_tree: Convert to SPDX license identifier
  rcu/update: Convert to SPDX license identifier
  rcu/tree: Convert to SPDX license identifier
  rcu/tiny: Convert to SPDX license identifier
  rcu/sync: Convert to SPDX license identifier
  rcu/srcu: Convert to SPDX license identifier
  rcu/rcutorture: Convert to SPDX license identifier
  rcu/rcu_segcblist: Convert to SPDX license identifier
  rcu/rcuperf: Convert to SPDX license identifier
  rcu/rcu.h: Convert to SPDX license identifier
  RCU/torture.txt: Remove section MODULE PARAMETERS
  ...
 2019-03-05 14:49:11 -08:00
Linus Torvalds edaed168e1 Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86/pti update from Thomas Gleixner:
 "Just a single change from the anti-performance departement:

   - Add a new PR_SPEC_DISABLE_NOEXEC option which allows to apply the
     speculation protections on a process without inheriting the state
     on exec.

     This remedies a situation where a Java-launcher has speculation
     protections enabled because that's the default for JVMs which
     causes the launched regular harmless processes to inherit the
     protection state which results in unintended performance
     degradation"

* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation: Add PR_SPEC_DISABLE_NOEXEC
 2019-03-05 12:50:34 -08:00
Linus Torvalds 78f8601354 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull irq updates from Thomas Gleixner:
 "The interrupt departement delivers this time:

   - New infrastructure to manage NMIs on platforms which have a sane
     NMI delivery, i.e. identifiable NMI vectors instead of a single
     lump.

   - Simplification of the interrupt affinity management so drivers
     don't have to implement ugly loops around the PCI/MSI enablement.

   - Speedup for interrupt statistics in /proc/stat

   - Provide a function to retrieve the default irq domain

   - A new interrupt controller for the Loongson LS1X platform

   - Affinity support for the SiFive PLIC

   - Better support for the iMX irqsteer driver

   - NUMA aware memory allocations for GICv3

   - The usual small fixes, improvements and cleanups all over the
     place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
  irqchip/imx-irqsteer: Add multi output interrupts support
  irqchip/imx-irqsteer: Change to use reg_num instead of irq_group
  dt-bindings: irq: imx-irqsteer: Add multi output interrupts support
  dt-binding: irq: imx-irqsteer: Use irq number instead of group number
  irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt code
  irqchip/gicv3-its: Use NUMA aware memory allocation for ITS tables
  irqdomain: Allow the default irq domain to be retrieved
  irqchip/sifive-plic: Implement irq_set_affinity() for SMP host
  irqchip/sifive-plic: Differentiate between PLIC handler and context
  irqchip/sifive-plic: Add warning in plic_init() if handler already present
  irqchip/sifive-plic: Pre-compute context hart base and enable base
  PCI/MSI: Remove obsolete sanity checks for multiple interrupt sets
  genirq/affinity: Remove the leftovers of the original set support
  nvme-pci: Simplify interrupt allocation
  genirq/affinity: Add new callback for (re)calculating interrupt sets
  genirq/affinity: Store interrupt sets size in struct irq_affinity
  genirq/affinity: Code consolidation
  irqchip/irq-sifive-plic: Check and continue in case of an invalid cpuid.
  irqchip/i8259: Fix shutdown order by moving syscore_ops registration
  dt-bindings: interrupt-controller: loongson ls1x intc
  ...
 2019-03-05 12:21:47 -08:00
Linus Torvalds 18483190e7 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull timer and clockevent updates from Thomas Gleixner:
 "The time(r) core and clockevent updates are mostly boring this time:

   - A new driver for the Tegra210 timer

   - Small fixes and improvements alll over the place

   - Documentation updates and cleanups"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  soc/tegra: default select TEGRA_TIMER for Tegra210
  clocksource/drivers/tegra: Add Tegra210 timer support
  dt-bindings: timer: add Tegra210 timer
  clocksource/drivers/timer-cs5535: Rename the file for consistency
  clocksource/drivers/timer-pxa: Rename the file for consistency
  clocksource/drivers/tango-xtal: Rename the file for consistency
  dt-bindings: timer: gpt: update binding doc
  clocksource/drivers/exynos_mct: Remove unused header includes
  dt-bindings: timer: mediatek: update bindings for MT7629 SoC
  clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
  clocksource/drivers/exynos_mct: Remove dead code
  clocksource/drivers/riscv: Add required checks during clock source init
  dt-bindings: timer: renesas: tmu: Document r8a774c0 bindings
  dt-bindings: timer: renesas, cmt: Document r8a774c0 CMT support
  clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
  clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
  clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability
  clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
  timers: Mark expected switch fall-throughs
  timekeeping/debug: No need to check return value of debugfs_create functions
  ...
 2019-03-05 12:14:43 -08:00
Mike Snitzer de7180ff90 dm cache: add support for discard passdown to the origin device 
DM cache now defaults to passing discards down to the origin device.
User may disable this using the "no_discard_passdown" feature when
creating the cache device.

If the cache's underlying origin device doesn't support discards then
passdown is disabled (with warning).  Similarly, if the underlying
origin device's max_discard_sectors is less than a cache block discard
passdown will be disabled (this is required because sizing of the cache
internal discard bitset depends on it).

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2019-03-05 14:53:52 -05:00
Helen Koike 6bbc923dfc dm: add support to directly boot to a mapped device 
Add a "create" module parameter, which allows device-mapper targets to
be configured at boot time. This enables early use of DM targets in the
boot process (as the root device or otherwise) without the need of an
initramfs.

The syntax used in the boot param is based on the concise format from
the dmsetup tool to follow the rule of least surprise:

	dmsetup table --concise /dev/mapper/lroot

Which is:
	dm-mod.create=<name>,<uuid>,<minor>,<flags>,<table>[,<table>+][;<name>,<uuid>,<minor>,<flags>,<table>[,<table>+]+]

Where,
	<name>		::= The device name.
	<uuid>		::= xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | ""
	<minor>		::= The device minor number | ""
	<flags>		::= "ro" | "rw"
	<table>		::= <start_sector> <num_sectors> <target_type> <target_args>
	<target_type>	::= "verity" | "linear" | ...

For example, the following could be added in the boot parameters:
dm-mod.create="lroot,,,rw, 0 4096 linear 98:16 0, 4096 4096 linear 98:32 0" root=/dev/dm-0

Only the targets that were tested are allowed and the ones that don't
change any block device when the device is create as read-only. For
example, mirror and cache targets are not allowed. The rationale behind
this is that if the user makes a mistake, choosing the wrong device to
be the mirror or the cache can corrupt data.

The only targets initially allowed are:
* crypt
* delay
* linear
* snapshot-origin
* striped
* verity

Co-developed-by: Will Drewry <wad@chromium.org>
Co-developed-by: Kees Cook <keescook@chromium.org>
Co-developed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2019-03-05 14:53:50 -05:00
Linus Torvalds d9862cfbe2 Here's the main MIPS pull request for v5.1: 
- Support for the MIPSr6 MemoryMapID register & Global INValidate TLB
   (GINVT) instructions, allowing for more efficient TLB maintenance when
   running on a CPU such as the I6500 that supports these.
 
 - Enable huge page support for MIPS64r6.
 
 - Optimize post-DMA cache sync by removing that code entirely for kernel
   configurations in which we know it won't be needed.
 
 - The number of pages allocated for interrupt stacks is now calculated
   correctly, where before we would wastefully allocate too much memory
   in some configurations.
 
 - The ath79 platform migrates to devicetree.
 
 - The bcm47xx platform sees fixes for the Buffalo WHR-G54S board.
 
 - The ingenic/jz4740 platform gains support for appended devicetrees.
 
 - The cavium_octeon, lantiq, loongson32 & sgi-ip27 platforms all see
   cleanups as do various pieces of core architecture code.
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Merge tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:

 - Support for the MIPSr6 MemoryMapID register & Global INValidate TLB
   (GINVT) instructions, allowing for more efficient TLB maintenance
   when running on a CPU such as the I6500 that supports these.

 - Enable huge page support for MIPS64r6.

 - Optimize post-DMA cache sync by removing that code entirely for
   kernel configurations in which we know it won't be needed.

 - The number of pages allocated for interrupt stacks is now calculated
   correctly, where before we would wastefully allocate too much memory
   in some configurations.

 - The ath79 platform migrates to devicetree.

 - The bcm47xx platform sees fixes for the Buffalo WHR-G54S board.

 - The ingenic/jz4740 platform gains support for appended devicetrees.

 - The cavium_octeon, lantiq, loongson32 & sgi-ip27 platforms all see
   cleanups as do various pieces of core architecture code.

* tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (66 commits)
  MIPS: lantiq: Remove separate GPHY Firmware loader
  MIPS: ingenic: Add support for appended devicetree
  MIPS: SGI-IP27: rework HUB interrupts
  MIPS: SGI-IP27: do boot CPU init later
  MIPS: SGI-IP27: do xtalk scanning later
  MIPS: SGI-IP27: use pr_info/pr_emerg and pr_cont to fix output
  MIPS: SGI-IP27: clean up bridge access and header files
  MIPS: SGI-IP27: get rid of volatile and hubreg_t
  MIPS: irq: Allocate accurate order pages for irq stack
  MIPS: dma-noncoherent: Remove bogus condition in dma_sync_phys()
  MIPS: eBPF: Remove REG_32BIT_ZERO_EX
  MIPS: eBPF: Always return sign extended 32b values
  MIPS: CM: Fix indentation
  MIPS: BCM47XX: Fix/improve Buffalo WHR-G54S support
  MIPS: OCTEON: program rx/tx-delay always from DT
  MIPS: OCTEON: delete board-specific link status
  MIPS: OCTEON: don't lie about interface type of CN3005 board
  MIPS: OCTEON: warn if deprecated link status is being used
  MIPS: OCTEON: add fixed-link nodes to in-kernel device tree
  MIPS: Delete unused flush_cache_sigtramp()
  ...
 2019-03-05 11:28:25 -08:00
Jeff Layton d11ae8e0a7 Documentation: modern versions of ceph are not backed by btrfs 
[ Update the links too. ]

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2019-03-05 18:55:18 +01:00
Yan, Zheng fe33032daa ceph: add mount option to limit caps count 
If number of caps exceed the limit, ceph_trim_dentires() also trim
dentries with valid leases. Trimming dentry releases references to
associated inode, which may evict inode and release caps.

By default, there is no limit for caps count.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
 2019-03-05 18:55:17 +01:00
Linus Torvalds 63bdf4284c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 
Pull crypto update from Herbert Xu:
 "API:
   - Add helper for simple skcipher modes.
   - Add helper to register multiple templates.
   - Set CRYPTO_TFM_NEED_KEY when setkey fails.
   - Require neither or both of export/import in shash.
   - AEAD decryption test vectors are now generated from encryption
     ones.
   - New option CONFIG_CRYPTO_MANAGER_EXTRA_TESTS that includes random
     fuzzing.

  Algorithms:
   - Conversions to skcipher and helper for many templates.
   - Add more test vectors for nhpoly1305 and adiantum.

  Drivers:
   - Add crypto4xx prng support.
   - Add xcbc/cmac/ecb support in caam.
   - Add AES support for Exynos5433 in s5p.
   - Remove sha384/sha512 from artpec7 as hardware cannot do partial
     hash"

[ There is a merge of the Freescale SoC tree in order to pull in changes
  required by patches to the caam/qi2 driver. ]

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (174 commits)
  crypto: s5p - add AES support for Exynos5433
  dt-bindings: crypto: document Exynos5433 SlimSSS
  crypto: crypto4xx - add missing of_node_put after of_device_is_available
  crypto: cavium/zip - fix collision with generic cra_driver_name
  crypto: af_alg - use struct_size() in sock_kfree_s()
  crypto: caam - remove redundant likely/unlikely annotation
  crypto: s5p - update iv after AES-CBC op end
  crypto: x86/poly1305 - Clear key material from stack in SSE2 variant
  crypto: caam - generate hash keys in-place
  crypto: caam - fix DMA mapping xcbc key twice
  crypto: caam - fix hash context DMA unmap size
  hwrng: bcm2835 - fix probe as platform device
  crypto: s5p-sss - Use AES_BLOCK_SIZE define instead of number
  crypto: stm32 - drop pointless static qualifier in stm32_hash_remove()
  crypto: chelsio - Fixed Traffic Stall
  crypto: marvell - Remove set but not used variable 'ivsize'
  crypto: ccp - Update driver messages to remove some confusion
  crypto: adiantum - add 1536 and 4096-byte test vectors
  crypto: nhpoly1305 - add a test vector with len % 16 != 0
  crypto: arm/aes-ce - update IV after partial final CTR block
  ...
 2019-03-05 09:09:55 -08:00
Linus Torvalds 6456300356 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:
 "Here we go, another merge window full of networking and #ebpf changes:

   1) Snoop DHCPACKS in batman-adv to learn MAC/IP pairs in the DHCP
      range without dealing with floods of ARP traffic, from Linus
      Lüssing.

   2) Throttle buffered multicast packet transmission in mt76, from
      Felix Fietkau.

   3) Support adaptive interrupt moderation in ice, from Brett Creeley.

   4) A lot of struct_size conversions, from Gustavo A. R. Silva.

   5) Add peek/push/pop commands to bpftool, as well as bash completion,
      from Stanislav Fomichev.

   6) Optimize sk_msg_clone(), from Vakul Garg.

   7) Add SO_BINDTOIFINDEX, from David Herrmann.

   8) Be more conservative with local resends due to local congestion,
      from Yuchung Cheng.

   9) Allow vetoing of unsupported VXLAN FDBs, from Petr Machata.

  10) Add health buffer support to devlink, from Eran Ben Elisha.

  11) Add TXQ scheduling API to mac80211, from Toke Høiland-Jørgensen.

  12) Add statistics to basic packet scheduler filter, from Cong Wang.

  13) Add GRE tunnel support for mlxsw Spectrum-2, from Nir Dotan.

  14) Lots of new IP tunneling forwarding tests, also from Nir Dotan.

  15) Add 3ad stats to bonding, from Nikolay Aleksandrov.

  16) Lots of probing improvements for bpftool, from Quentin Monnet.

  17) Various nfp drive #ebpf JIT improvements from Jakub Kicinski.

  18) Allow #ebpf programs to access gso_segs from skb shared info, from
      Eric Dumazet.

  19) Add sock_diag support for AF_XDP sockets, from Björn Töpel.

  20) Support 22260 iwlwifi devices, from Luca Coelho.

  21) Use rbtree for ipv6 defragmentation, from Peter Oskolkov.

  22) Add JMP32 instruction class support to #ebpf, from Jiong Wang.

  23) Add spinlock support to #ebpf, from Alexei Starovoitov.

  24) Support 256-bit keys and TLS 1.3 in ktls, from Dave Watson.

  25) Add device infomation API to devlink, from Jakub Kicinski.

  26) Add new timestamping socket options which are y2038 safe, from
      Deepa Dinamani.

  27) Add RX checksum offloading for various sh_eth chips, from Sergei
      Shtylyov.

  28) Flow offload infrastructure, from Pablo Neira Ayuso.

  29) Numerous cleanups, improvements, and bug fixes to the PHY layer
      and many drivers from Heiner Kallweit.

  30) Lots of changes to try and make packet scheduler classifiers run
      lockless as much as possible, from Vlad Buslov.

  31) Support BCM957504 chip in bnxt_en driver, from Erik Burrows.

  32) Add concurrency tests to tc-tests infrastructure, from Vlad
      Buslov.

  33) Add hwmon support to aquantia, from Heiner Kallweit.

  34) Allow 64-bit values for SO_MAX_PACING_RATE, from Eric Dumazet.

  And I would be remiss if I didn't thank the various major networking
  subsystem maintainers for integrating much of this work before I even
  saw it. Alexei Starovoitov, Daniel Borkmann, Pablo Neira Ayuso,
  Johannes Berg, Kalle Valo, and many others. Thank you!"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2207 commits)
  net/sched: avoid unused-label warning
  net: ignore sysctl_devconf_inherit_init_net without SYSCTL
  phy: mdio-mux: fix Kconfig dependencies
  net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg
  net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework
  selftest/net: Remove duplicate header
  sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
  net/mlx5e: Update tx reporter status in case channels were successfully opened
  devlink: Add support for direct reporter health state update
  devlink: Update reporter state to error even if recover aborted
  sctp: call iov_iter_revert() after sending ABORT
  team: Free BPF filter when unregistering netdev
  ip6mr: Do not call __IP6_INC_STATS() from preemptible context
  isdn: mISDN: Fix potential NULL pointer dereference of kzalloc
  net: dsa: mv88e6xxx: support in-band signalling on SGMII ports with external PHYs
  cxgb4/chtls: Prefix adapter flags with CXGB4
  net-sysfs: Switch to bitmap_zalloc()
  mellanox: Switch to bitmap_zalloc()
  bpf: add test cases for non-pointer sanitiation logic
  mlxsw: i2c: Extend initialization by querying resources data
  ...
 2019-03-05 08:26:13 -08:00
Linus Torvalds cd2a3bf026 LED updates for 5.1-rc1 
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Merge tag 'leds-for-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:

 - finalize previously announced support for initialization of pattern
   triggers from Device Tree

 - fix for null deref on firmware load failure in leds-lp55xx-common.c

* tag 'leds-for-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  leds: lp55xx: fix null deref on firmware load failure
  leds: trigger: timer: Add initialization from Device Tree
  leds: trigger: oneshot: Add initialization from Device Tree
  leds: trigger: pattern: Add pattern initialization from Device Tree
  leds: Add helper for getting default pattern from Device Tree
  dt-bindings: leds: Add pattern initialization from Device Tree
 2019-03-04 19:33:04 -08:00
Linus Torvalds 7629bac642 hwmon updates for v5.1 
Add support for LM96000, DPS-650AB to existing drivers
 
 Use permission specific SENSOR[_DEVICE]_ATTR variants in several drivers
 
 Replace S_<PERMS> with octal values in several drivers
 
 Update some license headers
 
 Various minor fixes and improvements in several drivers
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Merge tag 'hwmon-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:

 - Add support for LM96000, DPS-650AB to existing drivers

 - Use permission specific SENSOR[_DEVICE]_ATTR variants in several
   drivers

 - Replace S_<PERMS> with octal values in several drivers

 - Update some license headers

 - Various minor fixes and improvements in several drivers

* tag 'hwmon-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (89 commits)
  dt-bindings: hwmon: Add missing documentation for lm75
  hwmon: (ad7418) Add device tree probing
  hwmon: (ad741x) Add DT bindings for Analog Devices AD741x
  hwmon: (ntc_thermistor) Convert to new hwmon API
  hwmon: (pwm-fan) Add optional regulator support
  dt-bindings: hwmon: Add optional regulator support to pwm-fan
  hwmon: (f71882fg) Mark expected switch fall-through
  hwmon: (ad7418) Catch I2C errors
  hwmon: (lm85) add support for LM96000 high frequencies
  hwmon: (lm85) support the LM96000
  dt-bindings: Add LM96000 as a trivial device
  hwmon: (lm85) remove freq_map size hardcodes
  hwmon: (occ) Fix license headers
  hwmon: (via-cputemp) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (vexpress-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (tmp421) Replace S_<PERMS> with octal values
  hwmon: (tmp103) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (tmp102) Replace S_<PERMS> with octal values
  hwmon: (tc74) Use permission specific SENSOR[_DEVICE]_ATTR variants
  hwmon: (tc654) Use permission specific SENSOR[_DEVICE]_ATTR variants
  ...
 2019-03-04 19:29:37 -08:00
Linus Torvalds dcc75ddea1 spi: Updates for v5.1 
A fairly quiet release for SPI, the biggest thing is the conversion to
 use GPIO descriptors which is now 90% done but still needs some
 stragglers converting.
 
  - Support for inter-word delays.
  - Conversion of the core and most drivers to use GPIO descriptors for
    GPIO controlled chip selects.
  - New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum.
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Merge tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A fairly quiet release for SPI, the biggest thing is the conversion to
  use GPIO descriptors which is now 90% done but still needs some
  stragglers converting.

  Summary:

   - Support for inter-word delays

   - Conversion of the core and most drivers to use GPIO descriptors for
     GPIO controlled chip selects

   - New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum"

* tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (104 commits)
  spi: sh-msiof: Restrict bits per word to 8/16/24/32 on R-Car Gen2/3
  spi: sifive: Remove redundant dev_err call in sifive_spi_probe()
  spi: sifive: Remove spi_master_put in sifive_spi_remove()
  spi: spi-gpio: fix SPI_CS_HIGH capability
  spi: pxa2xx: Setup maximum supported DMA transfer length
  spi: sifive: Add driver for the SiFive SPI controller
  spi: sifive: Add DT documentation for SiFive SPI controller
  spi: sprd: Add a prefix for SPI DMA channel macros
  spi: sprd: spi: sprd: Add DMA mode support
  dt-bindings: spi: Add the DMA properties for the SPI dma mode
  spi: sprd: Add the SPI irq function for the SPI DMA mode
  dt-bindings: spi: imx: Add an entry for the i.MX8QM compatible
  spi: use gpio[d]_set_value_cansleep for setting chipselect GPIO
  spi: gpio: Advertise support for SPI_CS_HIGH
  spi: sh-msiof: Replace spi_master by spi_controller
  spi: sh-hspi: Replace spi_master by spi_controller
  spi: rspi: Replace spi_master by spi_controller
  spi: atmel-quadspi: add support for sam9x60 qspi controller
  dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60
  spi: atmel-quadspi: add support for named peripheral clock
  ...
 2019-03-04 19:23:56 -08:00
Linus Torvalds 32c0ac3af4 regulator: Updates for v5.1 
The bulk of the standout changes in this release are cleanups, with the
 core work being a combination of factoring out common code into helpers
 and the completion of the conversion of the core to use GPIO
 descriptors.
 
  - Addition of helper functions for current limits and conversion of
    drivers to use them by Axel Lin.
  - Lots and lots of cleanups from Axel Lin.
  - Conversion of the core to use GPIO descriptors rather than numbers by
    Linus Walleij.
  - New drivers for Maxim MAX77650 and ROHM BD70528.
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Merge tag 'regulator-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "The bulk of the standout changes in this release are cleanups, with
  the core work being a combination of factoring out common code into
  helpers and the completion of the conversion of the core to use GPIO
  descriptors.

  Summary:

   - Addition of helper functions for current limits and conversion of
     drivers to use them by Axel Lin.

   - Lots and lots of cleanups from Axel Lin.

   - Conversion of the core to use GPIO descriptors rather than numbers
     by Linus Walleij.

   - New drivers for Maxim MAX77650 and ROHM BD70528"

* tag 'regulator-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (131 commits)
  regulator: mc13xxx: Constify regulator_ops variables
  regulator: palmas: Constify palmas_smps_ramp_delay array
  regulator: wm831x-dcdc: Convert to use regulator_set/get_current_limit_regmap
  regulator: pv88090: Convert to use regulator_set/get_current_limit_regmap
  regulator: pv88080: Convert to use regulator_set/get_current_limit_regmap
  regulator: pv88060: Convert to use regulator_set/get_current_limit_regmap
  regulator: max77650: Convert to use regulator_set/get_current_limit_regmap
  regulator: lp873x: Convert to use regulator_set/get_current_limit_regmap
  regulator: lp872x: Convert to use regulator_set/get_current_limit_regmap
  regulator: da9210: Convert to use regulator_set/get_current_limit_regmap
  regulator: da9055: Convert to use regulator_set/get_current_limit_regmap
  regulator: core: Add set/get_current_limit helpers for regmap users
  regulator: Fix comment for csel_reg and csel_mask
  regulator: stm32-vrefbuf: add power management support
  regulator: 88pm8607: Remove unused fields from struct pm8607_regulator_info
  regulator: 88pm8607: Simplify pm8607_list_voltage implementation
  regulator: cpcap: Constify omap4_regulators and xoom_regulators
  regulator: cpcap: Remove unused vsel_shift from struct cpcap_regulator
  dt-bindings: regulator: tps65218: rectify units of LS3
  dt-bindings: regulator: add LS2 load switch documentation
  ...
 2019-03-04 19:20:52 -08:00
Linus Torvalds 42eaf1851e MMC core: 
- mmc: core: Fixup max_discard/trim calculations
  - mmc: core: Announce SD specs greater than 4.0
  - mmc: core: Add discard support for SD cards
  - mmc: core: Don't do retries for CMD6 (SWITCH command)
  - mmc: core: Various cleanups and re-structuring
 
 MMC host:
  - cqhci: Add maintainers for eMMC CQHCI driver
  - sdhci: Consolidate WP GPIO code
  - sdhci: Add ADMA3 DMA support for V4 enabled host
  - sdhci-pci-o2micro: Fixup card detect support
  - sdhci-tegra: Add support for CMDQ
  - sdhci-tegra: Support SDMMC pads auto-calibration
  - sdhci-esdhc-imx: Add DCMD support and CMDQ support
  - sdhci-esdhc-imx: Add support for i.MX6ULL variant
  - sdhci-esdhc-imx: Fixup HS400 timing issue
  - sdhci-esdhc-imx: Add HS400_ES support for i.MX8QXP
  - renesas_sdhi: Avoid CRC errors by adjusting settings to speed mode
  - renesas_sdhi: Fixup card initialization for high speed mode
  - omap: Fixup timeout settings
  - atmel-mci: Enable 8 bits bus-width support
  - jz4740: Convert some legacy code to use modern APIs
  - mmci: Send a CMD12 to clear DPSM at errors for STM32 sdmmc
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Merge tag 'mmc-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Fixup max_discard/trim calculations
   - Announce SD specs greater than 4.0
   - Add discard support for SD cards
   - Don't do retries for CMD6 (SWITCH command)
   - Various cleanups and re-structuring

  MMC host:
   - cqhci:
      * Add maintainers for eMMC CQHCI driver
   - sdhci:
      * Consolidate WP GPIO code
      * Add ADMA3 DMA support for V4 enabled host
      * Fixup card detect support in pci-o2micro driver
      * Add support for CMDQ and SDMMC pads auto-calibration in tegra
        driver
      * Add DCMD support and CMDQ support, support for i.MX6ULL variant,
        fixup HS400 timing issue and add HS400_ES support for i.MX8QXP
        to esdhc-imx driver
      * Avoid CRC errors by adjusting settings to speed mode and fixup
        card initialization for high speed mode in renesas_sdhi
      * Fixup timeout settings for omap
      * Enable 8 bits bus-width support in atmel-mci
      * Convert some legacy code in jz4740 driver to use modern APIs
      * Send a CMD12 to clear DPSM at errors for STM32 sdmmc mmci
        driver"

* tag 'mmc-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (69 commits)
  mmc:fix a bug when max_discard is 0
  mmc: core: Add a debug print when the card may have been replaced
  mmc: core: Add sd discard timeout
  mmc: core: Add discard support to sd
  mmc: sdhci-esdhc-imx: clear the HALT bit when enable CQE
  mmc: core: do not retry CMD6 in __mmc_switch()
  mmc: core: Convert mmc_align_data_size() into an SDIO specific function
  mmc: core: Move mmc_of_parse_voltage() to host.c
  mmc: core: Convert mmc_regulator_get_ocrmask() to static
  mmc: core: Move regulator helpers to separate file
  mmc: of_mmc_spi: Convert to mmc_of_parse_voltage()
  mmc: core: Drop retries as in-parameter to mmc_wait_for_app_cmd()
  mmc: core: Convert mmc_wait_for_app_cmd() to static
  mmc: renesas_sdhi: Change HW adjustment register according to speed mode
  mmc: mmci: Send a CMD12 to clear the DPSM at errors
  mmc: sdhci-xenon: Fixup already marked switch fall-through
  mmc: sdhci-tegra: drop ->get_ro() implementation
  mmc: sdhci-omap: drop ->get_ro() implementation
  mmc: sdhci: use WP GPIO in sdhci_check_ro()
  mmc: wmt-sdmmc: Drop unused include
  ...
 2019-03-04 19:07:02 -08:00
Linus Torvalds 811c16a2a2 MTD changes: 
- Use struct_size() where appropriate
 - mtd_{read,write}() as wrappers around mtd_{read,write}_oob()
 - Fix misuse of PTR_ERR() in docg3
 - Coding style improvements in mtdcore.c
 
 SPI NOR changes:
   Core changes:
   - Add support of octal mode I/O transfer
   - Add a bunch of SPI NOR entries to the flash_info table
 
   SPI NOR controller driver changes:
   - cadence-quadspi:
     * Add support for Octal SPI controller
     * write upto 8-bytes data in STIG mode
   - mtk-quadspi:
     * rename config to a common one
     * add SNOR_HWCAPS_READ to spi_nor_hwcaps mask
   - Add Tudor as SPI-NOR co-maintainer
 
 NAND changes
   NAND core changes:
   - Fourth batch of fixes/cleanup to the raw NAND core impacting various
     controller drivers (Sunxi, Marvell, MTK, TMIO, OMAP2).
   - Checking the return code of nand_reset() and nand_readid_op().
   - Removing ->legacy.erase and single_erase().
   - Simplifying the locking.
   - Several implicit fall through annotations.
 
   Raw NAND controllers drivers changes:
   - Fixing various possible object reference leaks (MTK, JZ4780, Atmel).
   - ST:
     * Adding support for STM32 FMC2 NAND flash controller.
   - Meson:
     * Adding support for Amlogic NAND flash controller.
   - Denali:
     * Several cleanup patches.
   - Sunxi:
     * Several cleanup patches.
   - FSMC:
     * Disabling NAND on remove().
     * Resetting NAND timings on resume().
 
   SPI-NAND drivers changes:
   - Toshiba:
     * Adding support for all Toshiba products.
   - Macronix:
     * Fixing ECC status read.
   - Gigadevice:
     * Adding support for GD5F1GQ4UExxG.
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Merge tag 'mtd/for-5.1' of git://git.infradead.org/linux-mtd

Pull MTD updates from Boris Brezillon:
 "Core MTD changes:
   - Use struct_size() where appropriate
   - mtd_{read,write}() as wrappers around mtd_{read,write}_oob()
   - Fix misuse of PTR_ERR() in docg3
   - Coding style improvements in mtdcore.c

  SPI NOR changes:
    Core changes:
     - Add support of octal mode I/O transfer
     - Add a bunch of SPI NOR entries to the flash_info table

    SPI NOR controller driver changes:
     - cadence-quadspi:
        * Add support for Octal SPI controller
        * write upto 8-bytes data in STIG mode
     - mtk-quadspi:
        * rename config to a common one
        * add SNOR_HWCAPS_READ to spi_nor_hwcaps mask
     - Add Tudor as SPI-NOR co-maintainer

  NAND changes:
    NAND core changes:
     - Fourth batch of fixes/cleanup to the raw NAND core impacting
       various controller drivers (Sunxi, Marvell, MTK, TMIO, OMAP2).
     - Check the return code of nand_reset() and nand_readid_op().
     - Remove ->legacy.erase and single_erase().
     - Simplify the locking.
     - Several implicit fall through annotations.

    Raw NAND controllers drivers changes:
     - Fix various possible object reference leaks (MTK, JZ4780, Atmel)
     - ST:
        * Add support for STM32 FMC2 NAND flash controller
     - Meson:
        * Add support for Amlogic NAND flash controller
     - Denali:
        * Several cleanup patches
     - Sunxi:
        * Several cleanup patches
     - FSMC:
        * Disable NAND on remove()
        * Reset NAND timings on resume()

    SPI-NAND drivers changes:
     - Toshiba:
        * Add support for all Toshiba products.
     - Macronix:
        * Fix ECC status read.
     - Gigadevice:
        * Add support for GD5F1GQ4UExxG"

* tag 'mtd/for-5.1' of git://git.infradead.org/linux-mtd: (64 commits)
  mtd: spi-nor: Fix wrong abbreviation HWCPAS
  mtd: spi-nor: cadence-quadspi: fix spelling mistake: "Couldnt't" -> "Couldn't"
  mtd: spi-nor: Add support for en25qh64
  mtd: spi-nor: Add support for MX25V8035F
  mtd: spi-nor: Add support for EN25Q80A
  mtd: spi-nor: cadence-quadspi: Add support for Octal SPI controller
  dt-bindings: cadence-quadspi: Add new compatible for AM654 SoC
  mtd: spi-nor: split s25fl128s into s25fl128s0 and s25fl128s1
  mtd: spi-nor: cadence-quadspi: write upto 8-bytes data in STIG mode
  mtd: spi-nor: Add support for mx25u3235f
  mtd: rawnand: denali_dt: remove single anonymous clock support
  mtd: rawnand: mtk: fix possible object reference leak
  mtd: rawnand: jz4780: fix possible object reference leak
  mtd: rawnand: atmel: fix possible object reference leak
  mtd: rawnand: fsmc: Disable NAND on remove()
  mtd: rawnand: fsmc: Reset NAND timings on resume()
  mtd: spinand: Add support for GigaDevice GD5F1GQ4UExxG
  mtd: rawnand: denali: remove unused dma_addr field from denali_nand_info
  mtd: rawnand: denali: remove unused function argument 'raw'
  mtd: rawnand: denali: remove unneeded denali_reset_irq() call
  ...
 2019-03-04 18:59:37 -08:00
Geert Uytterhoeven 866d65b9d7 Documentation/locking/lockdep: Drop last two chars of sample states 
Since the removal of FS_RECLAIM annotations, lockdep states contain four
characters, not six.

Fixes: e5684bbfc3 ("Documentation/locking/lockdep: Update info about states")
Fixes: d92a8cfcb3 ("locking/lockdep: Rework FS_RECLAIM annotation")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2019-03-04 12:55:18 -07:00
Geert Uytterhoeven 6cd43851f8 doc: rcu: Suspicious RCU usage is a warning 
Suspicious RCU usage messages are reported as warnings.

Fixes: a5dd63efda ("lockdep: Use "WARNING" tag on lockdep splats")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2019-03-04 12:53:15 -07:00
Tomasz Duszynski 8c56eebc0d docs: driver-api: iio: fix errors in documentation 
Improve IIO documentation by fixing a few mistakes.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2019-03-04 12:51:17 -07:00
Zenghui Yu d2b008f134 Documentation/process/howto: Update for 4.x -> 5.x versioning 
As linux-5.0 is coming up soon, the howto.rst document can be
updated for the new kernel version. Instead of changing all 4.x
references to 5.x, this time we git rid of all explicit version
numbers and rework some kernel trees' name to keep the docs
current and real.

Signed-off-by: Zenghui Yu <zenghuiyu96@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2019-03-04 12:47:09 -07:00
David S. Miller f7fb7c1a1c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-03-04

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

The main changes are:

1) Add AF_XDP support to libbpf. Rationale is to facilitate writing
   AF_XDP applications by offering higher-level APIs that hide many
   of the details of the AF_XDP uapi. Sample programs are converted
   over to this new interface as well, from Magnus.

2) Introduce a new cant_sleep() macro for annotation of functions
   that cannot sleep and use it in BPF_PROG_RUN() to assert that
   BPF programs run under preemption disabled context, from Peter.

3) Introduce per BPF prog stats in order to monitor the usage
   of BPF; this is controlled by kernel.bpf_stats_enabled sysctl
   knob where monitoring tools can make use of this to efficiently
   determine the average cost of programs, from Alexei.

4) Split up BPF selftest's test_progs similarly as we already
   did with test_verifier. This allows to further reduce merge
   conflicts in future and to get more structure into our
   quickly growing BPF selftest suite, from Stanislav.

5) Fix a bug in BTF's dedup algorithm which can cause an infinite
   loop in some circumstances; also various BPF doc fixes and
   improvements, from Andrii.

6) Various BPF sample cleanups and migration to libbpf in order
   to further isolate the old sample loader code (so we can get
   rid of it at some point), from Jakub.

7) Add a new BPF helper for BPF cgroup skb progs that allows
   to set ECN CE code point and a Host Bandwidth Manager (HBM)
   sample program for limiting the bandwidth used by v2 cgroups,
   from Lawrence.

8) Enable write access to skb->queue_mapping from tc BPF egress
   programs in order to let BPF pick TX queue, from Jesper.

9) Fix a bug in BPF spinlock handling for map-in-map which did
   not propagate spin_lock_off to the meta map, from Yonghong.

10) Fix a bug in the new per-CPU BPF prog counters to properly
    initialize stats for each CPU, from Eric.

11) Add various BPF helper prototypes to selftest's bpf_helpers.h,
    from Willem.

12) Fix various BPF samples bugs in XDP and tracing progs,
    from Toke, Daniel and Yonghong.

13) Silence preemption splat in test_bpf after BPF_PROG_RUN()
    enforces it now everywhere, from Anders.

14) Fix a signedness bug in libbpf's btf_dedup_ref_type() to
    get error handling working, from Dan.

15) Fix bpftool documentation and auto-completion with regards
    to stream_{verdict,parser} attach types, from Alban.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-04 10:14:31 -08:00
Louis Taylor 943ca6ad81 printk/docs: Add extra integer types to printk-formats 
A few commonly used integer types were absent from this table, so add
them.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lkml.kernel.org/r/20190303123647.22020-1-louis@kragniz.eu
Cc: pmladek@suse.com
Cc: geert+renesas@glider.be
Cc: andriy.shevchenko@linux.intel.com
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
Cc: ndesaulniers@google.com
Cc: jflat@chromium.org
Cc: Louis Taylor <louis@kragniz.eu>
Signed-off-by: Louis Taylor <louis@kragniz.eu>
[pmladek@suse.com: sorted both variants the same way by size]
Signed-off-by: Petr Mladek <pmladek@suse.com>
 2019-03-04 16:39:08 +01:00
Mark Brown 14dbfb417b
Merge branch 'spi-5.1' into spi-next 2019-03-04 15:32:51 +00:00
Mark Brown 88f268a5bc
Merge branch 'regulator-5.1' into regulator-next 2019-03-04 15:32:43 +00:00
Masahiro Yamada d3a918c659 kbuild: remove cc-version macro 
There is no more direct user of this macro; it is only used by
cc-ifversion.

Calling this macro is not efficient since it invokes the compiler to
get the compiler version. CONFIG_GCC_VERSION is already calculated in
the Kconfig stage, so Makefile can reuse it.

Here is a note about the slight difference between cc-version and
CONFIG_GCC_VERSION:

When using Clang, cc-version is evaluated to '0402' because Clang
defines __GNUC__ and __GNUC__MINOR__, and looks like GCC 4.2 in the
version point of view. On the other hand, CONFIG_GCC_VERSION=0
when $(CC) is clang.

There are currently two users of cc-ifversion:
  arch/mips/loongson64/Platform
  arch/powerpc/Makefile

They are not affected by this change.

The format of cc-version is <major><minor>, while CONFIG_GCC_VERSION
<major><minor><patch>. I adjusted cc-ifversion for the difference of
the number of digits.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
 2019-03-04 22:34:59 +09:00
Ley Foon Tan d13af79715 dt-bindings: PCI: altera: Add altr,pcie-root-port-2.0 
Add support for altr,pcie-root-port-2.0.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
 2019-03-04 12:22:19 +00:00
Claudiu Beznea 14101cafe9 pwm: atmel: Add PWM binding for SAM9X60 
Add PWM binding for SAM9X60 SoC.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2019-03-04 11:57:13 +01:00
Mathieu Othacehe 50e6914387 dt-bindings: pwm: hibvt: Add hi3559v100 support 
Add support for hi3559v100-shub-pwm and hisilicon,hi3559v100-pwm
platforms.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2019-03-04 11:34:56 +01:00
Rafael J. Wysocki 08a2e45ac0 Merge branches 'pm-cpuidle' and 'powercap' 
* pm-cpuidle:
  ACPI / processor: Set P_LVL{2,3} idle state descriptions
  intel_idle: add support for Jacobsville
  cpuidle: dt: bail out if the idle-state DT node is not compatible
  cpuidle: use BIT() for idle state flags and remove CPUIDLE_DRIVER_FLAGS_MASK
  Documentation: driver-api: PM: Add cpuidle document
  cpuidle: New timer events oriented governor for tickless systems

* powercap:
  powercap/intel_rapl: add Ice Lake mobile
  powercap: intel_rapl: add support for Jacobsville
 2019-03-04 11:18:42 +01:00
Rafael J. Wysocki 511514f1d9 Merge branches 'acpi-tables', 'acpi-debug', 'acpi-ec' and 'acpi-dptf' 
* acpi-tables:
  ACPI/PPTT: Add acpi_pptt_warn_missing() to consolidate logs
  ACPI / tables: table override from built-in initrd

* acpi-debug:
  ACPI: debug: Clean up acpi_aml_init()
  ACPI: no need to check return value of debugfs_create functions

* acpi-ec:
  Revert "ACPI / EC: Remove old CLEAR_ON_RESUME quirk"
  ACPI: EC: Simplify boot EC checks in acpi_ec_add()
  ACPI: EC: Eliminate acpi_config_boot_ec()
  ACPI: EC: Make acpi_ec_dsdt_probe() more straightforward
  ACPI: EC: Make acpi_ec_ecdt_probe() more straightforward
  ACPI: EC: Declare boot_ec as static
  ACPI: EC: Clean up probing for early EC

* acpi-dptf:
  ACPI / DPTF: remove header search path to the parent directory
 2019-03-04 11:16:04 +01:00
Dave Airlie 2c3cd66f4c Linux 5.0 
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Merge v5.0 into drm-next

There is a really hairy resolution involving amdgpu fixes, that I'd rather confirm here.

Also some misc fixes are landed by me, but the pr has them as well.

Signed-off-by: Dave Airlie <airlied@redhat.com>
 2019-03-04 12:02:55 +10:00
Tristram Ha a1c0ed24fe dt-bindings: net: dsa: document additional Microchip KSZ9477 family switches 
Document additional Microchip KSZ9477 family switches.

Show how KSZ8565 switch should be configured as the host port is port 7
instead of port 5.

Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-03 13:48:49 -08:00
David S. Miller 2369afb669 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 
Johan Hedberg says:

====================
pull request: bluetooth-next 2019-03-02

Here's one more bluetooth-next pull request for the 5.1 kernel:

 - Added support for MediaTek MT7663U and MT7668U UART devices
 - Cleanups & fixes to the hci_qca driver
 - Fixed wakeup pin behavior for QCA6174A controller

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-02 13:55:36 -08:00
Biju Das 57e883b576 dt-bindings: rtc: add rx8571 compatible 
The Epson rx8571 is compatible with the Epson rx8581 RTC.

The difference between the rx8571 and rx8581 RTC is that the former has
16 bytes more RAM. This renders them incompatible from a DT point of view.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
 2019-03-02 22:04:38 +01:00
Sean Wang b805c403c8 dt-bindings: net: bluetooth: add support for MediaTek MT7663U and MT7668U UART devices 
Update binding document with adding support of MT7663U and MT7668U UART
devices to mediatek-bluetooth.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
 2019-03-02 17:49:46 +01:00
Michael Shych 9d489ad121 Documentation/watchdog: Add documentation mlx-wdt driver 
Add documentation with details of Mellanox watchdog driver.

Signed-off-by: Michael Shych <michaelsh@mellanox.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
 2019-03-02 15:28:20 +01:00
Jerry Hoemann d02d104ea0 watchdog: Update sysfs documentation. 
Document the sysfs attributes:
	pretimeout
	pretimeout_available_governors
	pretimeout_governor

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
 2019-03-02 15:28:19 +01:00
David S. Miller cf29576fee wireless-drivers-next patches for 5.1 
Last set of patches. A new hardware support for mt76 otherwise quite
 normal.
 
 Major changes:
 
 mt76
 
 * add driver for MT7603E/MT7628
 
 ath10k
 
 * more preparation for SDIO support
 
 wil6210
 
 * support up to 20 stations in AP mode
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Merge tag 'wireless-drivers-next-for-davem-2019-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.1

Last set of patches. A new hardware support for mt76 otherwise quite
normal.

Major changes:

mt76

* add driver for MT7603E/MT7628

ath10k

* more preparation for SDIO support

wil6210

* support up to 20 stations in AP mode
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-02 00:56:59 -08:00
Florian Fainelli 91cf8eceff switchdev: Remove unused transaction item queue 
There are no more in tree users of the
switchdev_trans_item_{dequeue,enqueue} or switchdev_trans_item structure
in the kernel since commit 00fc0c51e3 ("rocker: Change world_ops API
and implementation to be switchdev independant").

Remove this unused code and update the documentation accordingly since.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-01 21:35:19 -08:00
Stefan Schmidt 8a42eda258 doc: net: ieee802154: remove old plain text docs after switching to rst 
The plain text docs are converted to rst now, which allows us to remove
the old text file from the tree.

Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-01 17:03:00 -08:00
Stefan Schmidt 8e4a07405d doc: net: ieee802154: introduce IEEE 802.15.4 subsystem doc in rst style 
Moving the ieee802154 docs from a plain text file into the new rst
style. This commit only does the minimal needed change to bring the
documentation over. Follow up patches will improve and extend on this.

Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-01 17:03:00 -08:00
Andrii Nakryiko 46604676c8 docs/bpf: minor casing/punctuation fixes 
Fix few casing and punctuation glitches.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2019-03-02 00:40:04 +01:00
Andrii Nakryiko 9ab5305dbe docs/btf: reflow text to fill up to 78 characters 
Reflow paragraphs to more fully and evenly fill 78 character lines.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2019-03-02 00:40:04 +01:00
Andrii Nakryiko 5efc529fb4 docs/btf: fix typos, improve wording 
Fix various typos, some of the formatting and wording for
Documentation/btf.rst.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2019-03-02 00:40:04 +01:00
Claudiu Manoil 20cc5ddecc dt-bindings: net: freescale: enetc: Add connection bindings for ENETC ethernet nodes 
Define connection bindings (external PHY connections and internal links)
for the ENETC on-chip ethernet controllers.

Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-03-01 11:21:32 -08:00
Greg Kroah-Hartman 99f63620b4 1. Exopsing counters for state changes of channel ring buffers; this is 
useful to investigate performance issues. By Kimberly Brown.
 
 2. Switching to the new generic UUID API, by Andy Shevchenko.
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Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux into char-misc-next

Sasha writes:

1. Exopsing counters for state changes of channel ring buffers; this is
useful to investigate performance issues. By Kimberly Brown.

2. Switching to the new generic UUID API, by Andy Shevchenko.

* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Expose counters for interrupts and full conditions
  vmbus: Switch to use new generic UUID API
 2019-03-01 16:43:50 +01:00
Mauro Carvalho Chehab adf48e3f1f media: Documentation: fix several typos 
Use codespell to fix lots of typos over frontends.

Manually verified to avoid false-positives.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
 2019-03-01 09:54:06 -05:00
Arnd Bergmann c889e2a0b0 Merge branch 'milbeaut/newsoc' into arm/newsoc 
Sugaya Taichi <sugaya.taichi@socionext.com> explains:

Here is the series of patches the initial support for SC2000(M10V) of
Milbeaut SoCs. "M10V" is the internal name of SC2000, so commonly used in
source code.

SC2000 is a SoC of the Milbeaut series. equipped with a DSP optimized for
computer vision. It also features advanced functionalities such as 360-degree,
real-time spherical stitching with multi cameras, image stabilization for
without mechanical gimbals, and rolling shutter correction. More detail is
below:
https://www.socionext.com/en/products/assp/milbeaut/SC2000.html

Specifications for developers are below:
 - Quad-core 32bit Cortex-A7 on ARMv7-A architecture
 - NEON support
 - DSP
 - GPU
 - MAX 3GB DDR3
 - Cortex-M0 for power control
 - NAND Flash Interface
 - SD UHS-I
 - SD UHS-II
 - SDIO
 - USB2.0 HOST / Device
 - USB3.0 HOST / Device
 - PCI express Gen2
 - Ethernet Engine
 - I2C
 - UART
 - SPI
 - PWM

Support is quite minimal for now, since it only includes timer, clock,
pictrl and serial controller drivers, so we can only boot to userspace
through initramfs. Support for the other peripherals  will come eventually.

* milbeaut/newsoc:
  ARM: multi_v7_defconfig: add ARCH_MILBEAUT and ARCH_MILBEAUT_M10V
  ARM: configs: Add Milbeaut M10V defconfig
  ARM: dts: milbeaut: Add device tree set for the Milbeaut M10V board
  clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs
  dt-bindings: timer: Add Milbeaut M10V timer description
  ARM: milbeaut: Add basic support for Milbeaut m10v SoC
  dt-bindings: Add documentation for Milbeaut SoCs
  dt-bindings: arm: Add SMP enable-method for Milbeaut
  dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram

Link: https://lore.kernel.org/linux-arm-kernel/1551243056-10521-1-git-send-email-sugaya.taichi@socionext.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2019-03-01 15:21:04 +01:00
Sugaya Taichi 172e90878d dt-bindings: timer: Add Milbeaut M10V timer description 
Add DT bindings document for Milbeaut M10V timer.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2019-03-01 15:18:27 +01:00
Sugaya Taichi f2a3aa163c dt-bindings: Add documentation for Milbeaut SoCs 
This adds a DT binding documentation for the M10V and its evaluation
board.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2019-03-01 15:18:26 +01:00
Sugaya Taichi fd73403a48 dt-bindings: arm: Add SMP enable-method for Milbeaut 
This adds a compatible string "socionext,milbeaut-m10v-smp"
for Milbeaut M10V to the 32 bit ARM CPU device tree binding.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2019-03-01 15:18:26 +01:00
Sugaya Taichi 1d0bf7b9d3 dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram 
The Milbeaut M10V SoC needs a part of sram for smp, so this adds the
M10V sram compatible and binding.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2019-03-01 15:18:26 +01:00
Joerg Roedel d05e4c8600 Merge branches 'iommu/fixes', 'arm/msm', 'arm/tegra', 'arm/mediatek', 'x86/vt-d', 'x86/amd', 'hyper-v' and 'core' into next 2019-03-01 11:24:51 +01:00
Jagan Teki da36822dec dt-bindings: Add vendor prefix for feiyang 
Add vendor prefix for feiyang, known as
Shenzhen Fly Young Technology Co.,LTD. a known producer for LCD modules.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Rob Herring <robh@kernel.org>
 2019-02-28 11:41:24 -06:00
Jagan Teki 364e8d6f21 dt-bindings: Add vendor prefix for techstar 
Add vendor prefix for techstar, known as
Shenzhen Techstar Electronics Co., Ltd. a known producer for LCD modules.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Rob Herring <robh@kernel.org>
 2019-02-28 11:41:23 -06:00
Akinobu Mita dac5827530 dt-bindings: display: add missing semicolon in example 
Add missing semicolon in example for Sitronix ST7735R display panels.

Cc: Rob Herring <robh@kernel.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Rob Herring <robh@kernel.org>
 2019-02-28 11:41:23 -06:00
Jagan Teki 985e225142 dt-bindings: hwmon: Add missing documentation for lm75 
Add missing dt-binding documentation for lm75 hwmon sensor.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 2019-02-28 09:38:05 -08:00
Zhang Lei 3e32131abc arm64: Add workaround for Fujitsu A64FX erratum 010001 
On the Fujitsu-A64FX cores ver(1.0, 1.1), memory access may cause
an undefined fault (Data abort, DFSC=0b111111). This fault occurs under
a specific hardware condition when a load/store instruction performs an
address translation. Any load/store instruction, except non-fault access
including Armv8 and SVE might cause this undefined fault.

The TCR_ELx.NFD1 bit is used by the kernel when CONFIG_RANDOMIZE_BASE
is enabled to mitigate timing attacks against KASLR where the kernel
address space could be probed using the FFR and suppressed fault on
SVE loads.

Since this erratum causes spurious exceptions, which may corrupt
the exception registers, we clear the TCR_ELx.NFDx=1 bits when
booting on an affected CPU.

Signed-off-by: Zhang Lei <zhang.lei@jp.fujitsu.com>
[Generated MIDR value/mask for __cpu_setup(), removed spurious-fault handler
 and always disabled the NFDx bits on affected CPUs]
Signed-off-by: James Morse <james.morse@arm.com>
Tested-by: zhang.lei <zhang.lei@jp.fujitsu.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2019-02-28 16:24:25 +00:00
Takashi Iwai 70395a96bd ASoC: More changes for v5.1 
Another batch of changes for ASoC, no big core changes - it's mainly
 small fixes and improvements for individual drivers.
 
  - A big refresh and cleanup of the Samsung drivers, fixing a number of
    issues which allow the driver to be used with a wider range of
    userspaces.
  - Fixes for the Intel drivers to make them more standard so less likely
    to get bitten by core issues.
  - New driver for Cirrus Logic CS35L26.
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Merge tag 'asoc-v5.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: More changes for v5.1

Another batch of changes for ASoC, no big core changes - it's mainly
small fixes and improvements for individual drivers.

 - A big refresh and cleanup of the Samsung drivers, fixing a number of
   issues which allow the driver to be used with a wider range of
   userspaces.
 - Fixes for the Intel drivers to make them more standard so less likely
   to get bitten by core issues.
 - New driver for Cirrus Logic CS35L26.
 2019-02-28 13:30:55 +01:00
Greg Kroah-Hartman f699f9f9ac mei-hdcp driver 
mei driver for the me hdcp client, for use by drm/i915.
 
 Including the following prep work:
 - whitelist hdcp client in mei bus
 - merge to include char-misc-next
 - drm/i915 side of the mei_hdcp/i915 component interface
 - component prep work (including one patch touching i915&snd-hda)
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Merge tag 'topic/mei-hdcp-2019-02-26' of git://anongit.freedesktop.org/drm/drm-intel into char-misc-next

Daniel writes:

mei-hdcp driver

mei driver for the me hdcp client, for use by drm/i915.

Including the following prep work:
- whitelist hdcp client in mei bus
- merge to include char-misc-next
- drm/i915 side of the mei_hdcp/i915 component interface
- component prep work (including one patch touching i915&snd-hda)

* tag 'topic/mei-hdcp-2019-02-26' of git://anongit.freedesktop.org/drm/drm-intel: (23 commits)
  misc/mei/hdcp: Component framework for I915 Interface
  misc/mei/hdcp: Closing wired HDCP2.2 Tx Session
  misc/mei/hdcp: Enabling the HDCP authentication
  misc/mei/hdcp: Verify M_prime
  misc/mei/hdcp: Repeater topology verification and ack
  misc/mei/hdcp: Prepare Session Key
  misc/mei/hdcp: Verify L_prime
  misc/mei/hdcp: Initiate Locality check
  misc/mei/hdcp: Store the HDCP Pairing info
  misc/mei/hdcp: Verify H_prime
  misc/mei/hdcp: Verify Receiver Cert and prepare km
  misc/mei/hdcp: Initiate Wired HDCP2.2 Tx Session
  misc/mei/hdcp: Define ME FW interface for HDCP2.2
  misc/mei/hdcp: Client driver for HDCP application
  mei: bus: whitelist hdcp client
  drm/audio: declaration of struct device
  drm: helper functions for hdcp2 seq_num to from u32
  drm/i915: MEI interface definition
  drm/i915: header for i915 - MEI_HDCP interface
  drm/i915: enum port definition is moved into i915_drm.h
  ...
 2019-02-28 12:55:40 +01:00
Andrey Smirnov d82ca49f3e dt-bindings: imx6q-pcie: Add "pcie_aux" clock for imx8mq 
Add a binding for an extra clock required on i.MX8MQ.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: "A.s. Dong" <aisheng.dong@nxp.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: linux-imx@nxp.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
 2019-02-28 09:46:22 +00:00
David Howells 5fe1890d0e vfs: Provide documentation for new mount API 
Provide documentation for the new mount API.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2019-02-28 03:29:37 -05:00
Ingo Molnar 0614621d89 Merge branch 'linus' into locking/core, to pick up fixes 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2019-02-28 07:50:39 +01:00
Kamil Konieczny d3ff9f851b dt-bindings: crypto: document Exynos5433 SlimSSS 
Document DT bindings for crypto Samsung Exynos5433 SlimSSS (Slim Security
SubSystem) IP.

Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2019-02-28 14:37:35 +08:00
Pankaj Bansal 43185c3b82 dt-bindings: net: Add bindings for mdio mux consumers 
When we use the bindings defined in Documentation/devicetree/bindings/mux
to define mdio mux in producer and consumer terms, it results in two
devices. one is mux producer and other is mux consumer.

Add the bindings needed for Mdio mux consumer devices.

Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-27 12:52:20 -08:00
Philipp Puschmann 30097374e6 dt-bindings: usb: ci-hdrc-usb2: add property power-active-high 
The i.MX USB controller may drive the usb power line directly, but the
polarity depends on the board. Reset state of the polarity is low-active so
add this property to allow it to be high-active.

Signed-off-by: Philipp Puschmann <philipp.puschmann@emlix.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-02-27 15:51:01 +01:00
Avri Altman 5c17f87abb scsi: ufs-bsg: Allow reading descriptors 
Add this functionality, placing the descriptor being read in the actual
data buffer in the bio.

That is, for both read and write descriptors query upiu, we are using the
job's request_payload.  This in turn, is mapped back in user land to the
applicable sg_io_v4 xferp: dout_xferp for write descriptor, and din_xferp
for read descriptor.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2019-02-27 09:00:02 -05:00
Avri Altman 4eaa329e33 scsi: ufs-bsg: Change the calling convention for write descriptor 
When we had a write descriptor query upiu, we appended the descriptor right
after the bsg request.  This was fine as the bsg driver allows to allocate
whatever buffer we needed in its job request.

Still, the proper way to deliver payload, however small (we only write
config descriptors of 144 bytes), is by using the job request payload data
buffer.

So change this ABI now, while ufs-bsg is still new, and nobody is actually
using it.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 2019-02-27 08:56:32 -05:00
Brian Norris 7d19261bc0 dt-bindings: net: btusb: add QCA6174A IDs 
There are two USB PID/VID variations I've seen for this chip, and I want
to utilize the 'interrupts' property defined here already.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
 2019-02-27 08:50:15 +01:00
Mark Brown 3146089d23
Merge branch 'asoc-5.1' into asoc-next 2019-02-26 16:22:47 +00:00
Mark Brown b5e806ae4a
Merge branch 'asoc-5.0' into asoc-linus 2019-02-26 16:22:45 +00:00
Christian Hohnstaedt 5ee3d33d10
dt-bindings: regulator: tps65218: rectify units of LS3 
LS3 has a selectable current limit.
Change units to microamp in the example.

Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2019-02-26 11:49:52 +00:00
Christian Hohnstaedt 4f430487e2
dt-bindings: regulator: add LS2 load switch documentation 
Document device-tree settings of the load-switch LS2
in the tps65218 device.

Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2019-02-26 11:49:34 +00:00
Sugaya Taichi 0e585aabc5 dt-bindings: serial: Add Milbeaut serial driver description 
Add DT bindings document for Milbeaut serial driver.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-02-26 12:30:45 +01:00
Felix Fietkau 782eff0949 dt-bindings: net: mt76: update binding for mt7603 driver 
In addition to MT7603E PCI devices, the driver supports the WLAN core on
MT7628/MT7688, which needs to be defined in DT.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
 2019-02-26 12:29:56 +01:00
Kees Cook 89a9684ea1 LSM: Ignore "security=" when "lsm=" is specified 
To avoid potential confusion, explicitly ignore "security=" when "lsm=" is
used on the command line, and report that it is happening.

Suggested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
 2019-02-25 15:22:48 -08:00
Magnus Karlsson 0f4a9b7d4e xsk: add FAQ to facilitate for first time users 
Added an FAQ section in Documentation/networking/af_xdp.rst to help
first time users with common problems. As problems are getting
identified, entries will be added to the FAQ.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 2019-02-25 23:21:42 +01:00
Hauke Mehrtens aeb669d41f
MIPS: lantiq: Remove separate GPHY Firmware loader 
The separate GPHY Firmware loader driver is not used any more, the GPHY
firmware is now loaded by the GSWIP switch driver which also makes use
of the GPHY.
Remove the old unused GPHY firmware loader driver.

The GPHY firmware is useless without an Ethernet and switch driver, it
should not harm if loading this does not work for system using an old
device tree.
I am not aware of any vendor separating the device tree from the kernel
binary, it should be ok to remove this.

The code and the functionality form this separate GPHY firmware loader
was added to the gswip driver in commit 14fceff477 ("net: dsa: Add
Lantiq / Intel DSA driver for vrx200")

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: john@phrozen.org
Cc: netdev@vger.kernel.org
 2019-02-25 14:17:10 -08:00
Linus Walleij badf14ceba hwmon: (ad741x) Add DT bindings for Analog Devices AD741x 
This adds device tree bindings for Analog Devices AD741x
as found in Gateway routers.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 2019-02-25 06:35:42 -08:00
Boris Brezillon 9220d7befc NAND core changes: 
- Fourth batch of fixes/cleanup to the raw NAND core impacting various
   controller drivers (Sunxi, Marvell, MTK, TMIO, OMAP2).
 - Checking the return code of nand_reset() and nand_readid_op().
 - Removing ->legacy.erase and single_erase().
 - Simplifying the locking.
 - Several implicit fall through annotations.
 
 Raw NAND controllers drivers changes:
 - Fixing various possible object reference leaks (MTK, JZ4780, Atmel).
 - ST:
   * Adding support for STM32 FMC2 NAND flash controller.
 - Meson:
   * Adding support for Amlogic NAND flash controller.
 - Denali:
   * Several cleanup patches.
 - Sunxi:
   * Several cleanup patches.
 - FSMC:
   * Disabling NAND on remove().
   * Resetting NAND timings on resume().
 
 SPI-NAND drivers changes:
 - Toshiba:
   * Adding support for all Toshiba products.
 - Macronix:
   * Fixing ECC status read.
 - Gigadevice:
   * Adding support for GD5F1GQ4UExxG.
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Merge tag 'nand/for-5.1' of git://git.infradead.org/linux-mtd into mtd/next

NAND core changes:
- Fourth batch of fixes/cleanup to the raw NAND core impacting various
  controller drivers (Sunxi, Marvell, MTK, TMIO, OMAP2).
- Checking the return code of nand_reset() and nand_readid_op().
- Removing ->legacy.erase and single_erase().
- Simplifying the locking.
- Several implicit fall through annotations.

Raw NAND controllers drivers changes:
- Fixing various possible object reference leaks (MTK, JZ4780, Atmel).
- ST:
  * Adding support for STM32 FMC2 NAND flash controller.
- Meson:
  * Adding support for Amlogic NAND flash controller.
- Denali:
  * Several cleanup patches.
- Sunxi:
  * Several cleanup patches.
- FSMC:
  * Disabling NAND on remove().
  * Resetting NAND timings on resume().

SPI-NAND drivers changes:
- Toshiba:
  * Adding support for all Toshiba products.
- Macronix:
  * Fixing ECC status read.
- Gigadevice:
  * Adding support for GD5F1GQ4UExxG.
 2019-02-25 09:28:54 +01:00
Sowjanya Komatineni c7fddbd5db dt-bindings: mmc: Add supports-cqe property 
Add supports-cqe optional property for MMC hosts.

This property is used to identify the specific host controller
supporting command queue.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 2019-02-25 08:40:58 +01:00
Sowjanya Komatineni 7c3cf5c932 dt-bindings: mmc: tegra: Add pinctrl for SDMMC drive strengths 
Add pinctrls for 3V3 and 1V8 pad drive strength configuration for
Tegra210 sdmmc.

Tegra210 sdmmc has pad configuration registers in pinmux register
domain and handled thru pinctrl to pinmux device node.

Tegra186 and Tegra194 has pad configuration register with in the
SDMMC register domain itself and are handles thru drive strength
properties in sdmmc device node.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 2019-02-25 08:40:58 +01:00
Mike Maslenkin 204d94e63e mmc: dt-bindings: omap: Remove duplicate documentation paragraphs 
Signed-off-by: Mike Maslenkin <mike.maslenkin@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 2019-02-25 08:40:58 +01:00
BOUGH CHEN 772bf73ed4 dt-bindings: mmc: fsl-imx-esdhc: add imx6ull compatible string 
Add a imx6ull compatible string to be able to manage erratum ERR010450 on
i.MX6ULL.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
 2019-02-25 08:40:58 +01:00
Baolin Wang b5a4c37324 dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier 
For Spreadtrum DMA engine, all channels are equal, which means slave can
request any channels with setting a unique slave id to trigger this channel.

Thus we can remove the channel id from device tree to assign the channel
dynamically, moreover we should add the slave id in device tree.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2019-02-25 12:11:06 +05:30
Russell King 0a6c33e894 doc: add phylink documentation to the networking book 
Add some phylink documentation to the networking book detailing how
to convert network drivers from phylib to phylink.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-24 12:39:45 -08:00
David S. Miller 70f3522614 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Three conflicts, one of which, for marvell10g.c is non-trivial and
requires some follow-up from Heiner or someone else.

The issue is that Heiner converted the marvell10g driver over to
use the generic c45 code as much as possible.

However, in 'net' a bug fix appeared which makes sure that a new
local mask (MDIO_AN_10GBT_CTRL_ADV_NBT_MASK) with value 0x01e0
is cleared.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-24 12:06:19 -08:00
Linus Torvalds c4eb1e1852 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Pull networking fixes from David Miller:
 "Hopefully the last pull request for this release. Fingers crossed:

   1) Only refcount ESP stats on full sockets, from Martin Willi.

   2) Missing barriers in AF_UNIX, from Al Viro.

   3) RCU protection fixes in ipv6 route code, from Paolo Abeni.

   4) Avoid false positives in untrusted GSO validation, from Willem de
      Bruijn.

   5) Forwarded mesh packets in mac80211 need more tailroom allocated,
      from Felix Fietkau.

   6) Use operstate consistently for linkup in team driver, from George
      Wilkie.

   7) ThunderX bug fixes from Vadim Lomovtsev. Mostly races between VF
      and PF code paths.

   8) Purge ipv6 exceptions during netdevice removal, from Paolo Abeni.

   9) nfp eBPF code gen fixes from Jiong Wang.

  10) bnxt_en firmware timeout fix from Michael Chan.

  11) Use after free in udp/udpv6 error handlers, from Paolo Abeni.

  12) Fix a race in x25_bind triggerable by syzbot, from Eric Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits)
  net: phy: realtek: Dummy IRQ calls for RTL8366RB
  tcp: repaired skbs must init their tso_segs
  net/x25: fix a race in x25_bind()
  net: dsa: Remove documentation for port_fdb_prepare
  Revert "bridge: do not add port to router list when receives query with source 0.0.0.0"
  selftests: fib_tests: sleep after changing carrier. again.
  net: set static variable an initial value in atl2_probe()
  net: phy: marvell10g: Fix Multi-G advertisement to only advertise 10G
  bpf, doc: add bpf list as secondary entry to maintainers file
  udp: fix possible user after free in error handler
  udpv6: fix possible user after free in error handler
  fou6: fix proto error handler argument type
  udpv6: add the required annotation to mib type
  mdio_bus: Fix use-after-free on device_register fails
  net: Set rtm_table to RT_TABLE_COMPAT for ipv6 for tables > 255
  bnxt_en: Wait longer for the firmware message response to complete.
  bnxt_en: Fix typo in firmware message timeout logic.
  nfp: bpf: fix ALU32 high bits clearance bug
  nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
  Documentation: networking: switchdev: Update port parent ID section
  ...
 2019-02-24 09:28:26 -08:00
Christoph Hellwig fb7e160019 fs: add an iopoll method to struct file_operations 
This new methods is used to explicitly poll for I/O completion for an
iocb.  It must be called for any iocb submitted asynchronously (that
is with a non-null ki_complete) which has the IOCB_HIPRI flag set.

The method is assisted by a new ki_cookie field in struct iocb to store
the polling cookie.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2019-02-24 08:20:17 -07:00
Hauke Mehrtens 99407d8fa3 net: dsa: Remove documentation for port_fdb_prepare 
This callback was removed some time ago, also remove the documentation.

Fixes: 1b6dd556c3 ("net: dsa: Remove prepare phase for FDB")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2019-02-23 18:38:00 -08:00
Stefan Wahren 29d013ad04 dt-bindings: hwmon: Add optional regulator support to pwm-fan 
This adds an optional regulator support (e.g. switchable supply) to the
pwm fan binding.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
 2019-02-23 09:01:24 -08:00
Joseph Lo 87e0a45596 dt-bindings: timer: add Tegra210 timer 
The Tegra210 timer provides fourteen 29-bit timer counters and one 32-bit
timestamp counter. The TMRs run at either a fixed 1 MHz clock rate derived
from the oscillator clock (TMR0-TMR9) or directly at the oscillator clock
(TMR10-TMR13). Each TMR can be programmed to generate one-shot periodic,
or watchdog interrupts.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 2019-02-23 12:13:45 +01:00
Anson Huang 2e710fc391 dt-bindings: timer: gpt: update binding doc 
The i.MX GPT timer driver binding doc is out of date,
update it according to current GPT timer driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 2019-02-23 12:13:45 +01:00
Ryder Lee 2e876b5d9f dt-bindings: timer: mediatek: update bindings for MT7629 SoC 
Update the binding for MT7629 SoC, which uses fallback compatible to
MT6765 SYST, so add more descriptions to distinguish it from the other
SoCs that use GPT.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 2019-02-23 12:13:45 +01:00
Biju Das 29f970cf67 dt-bindings: timer: renesas: tmu: Document r8a774c0 bindings 
Document RZ/G2E (R8A774C0) SoC in the Renesas TMU bindings.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 2019-02-23 12:13:45 +01:00
Biju Das 8743dcf669 dt-bindings: timer: renesas, cmt: Document r8a774c0 CMT support 
Document SoC specific bindings for RZ/G2E (r8a774c0) SoC.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 2019-02-23 12:13:45 +01:00
Samuel Holland c950ca8c35 clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability 
The Allwinner A64 SoC is known[1] to have an unstable architectural
timer, which manifests itself most obviously in the time jumping forward
a multiple of 95 years[2][3]. This coincides with 2^56 cycles at a
timer frequency of 24 MHz, implying that the time went slightly backward
(and this was interpreted by the kernel as it jumping forward and
wrapping around past the epoch).

Investigation revealed instability in the low bits of CNTVCT at the
point a high bit rolls over. This leads to power-of-two cycle forward
and backward jumps. (Testing shows that forward jumps are about twice as
likely as backward jumps.) Since the counter value returns to normal
after an indeterminate read, each "jump" really consists of both a
forward and backward jump from the software perspective.

Unless the kernel is trapping CNTVCT reads, a userspace program is able
to read the register in a loop faster than it changes. A test program
running on all 4 CPU cores that reported jumps larger than 100 ms was
run for 13.6 hours and reported the following:

 Count | Event
-------+---------------------------
  9940 | jumped backward      699ms
   268 | jumped backward     1398ms
     1 | jumped backward     2097ms
 16020 | jumped forward       175ms
  6443 | jumped forward       699ms
  2976 | jumped forward      1398ms
     9 | jumped forward    356516ms
     9 | jumped forward    357215ms
     4 | jumped forward    714430ms
     1 | jumped forward   3578440ms

This works out to a jump larger than 100 ms about every 5.5 seconds on
each CPU core.

The largest jump (almost an hour!) was the following sequence of reads:
    0x0000007fffffffff → 0x00000093feffffff → 0x0000008000000000

Note that the middle bits don't necessarily all read as all zeroes or
all ones during the anomalous behavior; however the low 10 bits checked
by the function in this patch have never been observed with any other
value.

Also note that smaller jumps are much more common, with backward jumps
of 2048 (2^11) cycles observed over 400 times per second on each core.
(Of course, this is partially explained by lower bits rolling over more
frequently.) Any one of these could have caused the 95 year time skip.

Similar anomalies were observed while reading CNTPCT (after patching the
kernel to allow reads from userspace). However, the CNTPCT jumps are
much less frequent, and only small jumps were observed. The same program
as before (except now reading CNTPCT) observed after 72 hours:

 Count | Event
-------+---------------------------
    17 | jumped backward      699ms
    52 | jumped forward       175ms
  2831 | jumped forward       699ms
     5 | jumped forward      1398ms

Further investigation showed that the instability in CNTPCT/CNTVCT also
affected the respective timer's TVAL register. The following values were
observed immediately after writing CNVT_TVAL to 0x10000000:

 CNTVCT             | CNTV_TVAL  | CNTV_CVAL          | CNTV_TVAL Error
--------------------+------------+--------------------+-----------------
 0x000000d4a2d8bfff | 0x10003fff | 0x000000d4b2d8bfff | +0x00004000
 0x000000d4a2d94000 | 0x0fffffff | 0x000000d4b2d97fff | -0x00004000
 0x000000d4a2d97fff | 0x10003fff | 0x000000d4b2d97fff | +0x00004000
 0x000000d4a2d9c000 | 0x0fffffff | 0x000000d4b2d9ffff | -0x00004000

The pattern of errors in CNTV_TVAL seemed to depend on exactly which
value was written to it. For example, after writing 0x10101010:

 CNTVCT             | CNTV_TVAL  | CNTV_CVAL          | CNTV_TVAL Error
--------------------+------------+--------------------+-----------------
 0x000001ac3effffff | 0x1110100f | 0x000001ac4f10100f | +0x1000000
 0x000001ac40000000 | 0x1010100f | 0x000001ac5110100f | -0x1000000
 0x000001ac58ffffff | 0x1110100f | 0x000001ac6910100f | +0x1000000
 0x000001ac66000000 | 0x1010100f | 0x000001ac7710100f | -0x1000000
 0x000001ac6affffff | 0x1110100f | 0x000001ac7b10100f | +0x1000000
 0x000001ac6e000000 | 0x1010100f | 0x000001ac7f10100f | -0x1000000

I was also twice able to reproduce the issue covered by Allwinner's
workaround[4], that writing to TVAL sometimes fails, and both CVAL and
TVAL are left with entirely bogus values. One was the following values:

 CNTVCT             | CNTV_TVAL  | CNTV_CVAL
--------------------+------------+--------------------------------------
 0x000000d4a2d6014c | 0x8fbd5721 | 0x000000d132935fff (615s in the past)
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>

========================================================================

Because the CPU can read the CNTPCT/CNTVCT registers faster than they
change, performing two reads of the register and comparing the high bits
(like other workarounds) is not a workable solution. And because the
timer can jump both forward and backward, no pair of reads can
distinguish a good value from a bad one. The only way to guarantee a
good value from consecutive reads would be to read _three_ times, and
take the middle value only if the three values are 1) each unique and
2) increasing. This takes at minimum 3 counter cycles (125 ns), or more
if an anomaly is detected.

However, since there is a distinct pattern to the bad values, we can
optimize the common case (1022/1024 of the time) to a single read by
simply ignoring values that match the error pattern. This still takes no
more than 3 cycles in the worst case, and requires much less code. As an
additional safety check, we still limit the loop iteration to the number
of max-frequency (1.2 GHz) CPU cycles in three 24 MHz counter periods.

For the TVAL registers, the simple solution is to not use them. Instead,
read or write the CVAL and calculate the TVAL value in software.

Although the manufacturer is aware of at least part of the erratum[4],
there is no official name for it. For now, use the kernel-internal name
"UNKNOWN1".

[1]: https://github.com/armbian/build/commit/a08cd6fe7ae9
[2]: https://forum.armbian.com/topic/3458-a64-datetime-clock-issue/
[3]: https://irclog.whitequark.org/linux-sunxi/2018-01-26
[4]: https://github.com/Allwinner-Homlet/H6-BSP4.9-linux/blob/master/drivers/clocksource/arm_arch_timer.c#L272

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
 2019-02-23 12:13:45 +01:00