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Linus Torvalds
99ea1521a0 Remove uninitialized_var() macro for v5.9-rc1 
- Clean up non-trivial uses of uninitialized_var()
 - Update documentation and checkpatch for uninitialized_var() removal
 - Treewide removal of uninitialized_var()
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Merge tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull uninitialized_var() macro removal from Kees Cook:
 "This is long overdue, and has hidden too many bugs over the years. The
  series has several "by hand" fixes, and then a trivial treewide
  replacement.

   - Clean up non-trivial uses of uninitialized_var()

   - Update documentation and checkpatch for uninitialized_var() removal

   - Treewide removal of uninitialized_var()"

* tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  compiler: Remove uninitialized_var() macro
  treewide: Remove uninitialized_var() usage
  checkpatch: Remove awareness of uninitialized_var() macro
  mm/debug_vm_pgtable: Remove uninitialized_var() usage
  f2fs: Eliminate usage of uninitialized_var() macro
  media: sur40: Remove uninitialized_var() usage
  KVM: PPC: Book3S PR: Remove uninitialized_var() usage
  clk: spear: Remove uninitialized_var() usage
  clk: st: Remove uninitialized_var() usage
  spi: davinci: Remove uninitialized_var() usage
  ide: Remove uninitialized_var() usage
  rtlwifi: rtl8192cu: Remove uninitialized_var() usage
  b43: Remove uninitialized_var() usage
  drbd: Remove uninitialized_var() usage
  x86/mm/numa: Remove uninitialized_var() usage
  docs: deprecated.rst: Add uninitialized_var()
 2020-08-04 13:49:43 -07:00
Linus Torvalds
427714f258 tasklets API update for v5.9-rc1 
- Prepare for tasklet API modernization (Romain Perier, Allen Pais, Kees Cook)
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Merge tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull tasklets API update from Kees Cook:
 "These are the infrastructure updates needed to support converting the
  tasklet API to something more modern (and hopefully for removal
  further down the road).

  There is a 300-patch series waiting in the wings to get set out to
  subsystem maintainers, but these changes need to be present in the
  kernel first. Since this has some treewide changes, I carried this
  series for -next instead of paining Thomas with it in -tip, but it's
  got his Ack.

  This is similar to the timer_struct modernization from a while back,
  but not nearly as messy (I hope). :)

   - Prepare for tasklet API modernization (Romain Perier, Allen Pais,
     Kees Cook)"

* tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  tasklet: Introduce new initialization API
  treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
  usb: gadget: udc: Avoid tasklet passing a global
 2020-08-04 13:40:35 -07:00
Linus Torvalds
5b5d3be5d6 Automatic variable initialization updates for v5.9-rc1 
- Introduce CONFIG_INIT_STACK_ALL_ZERO (Alexander Potapenko)
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Merge tag 'var-init-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull automatic variable initialization updates from Kees Cook:
 "This adds the "zero" init option from Clang, which is being used
  widely in production builds of Android and Chrome OS (though it also
  keeps the "pattern" init, which is better for debug builds).

   - Introduce CONFIG_INIT_STACK_ALL_ZERO (Alexander Potapenko)"

* tag 'var-init-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  security: allow using Clang's zero initialization for stack variables
 2020-08-04 13:38:35 -07:00
Linus Torvalds
3e4a12a1ba GCC plugins updates for v5.9-rc1 
- Update URLs for HTTPS scheme where available (Alexander A. Klimov)
 - Improve STACKLEAK code generation on x86 (Alexander Popov)
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Merge tag 'gcc-plugins-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc plugin updates from Kees Cook:
 "Primarily improvements to STACKLEAK from Alexander Popov, along with
  some additional cleanups.

    - Update URLs for HTTPS scheme where available (Alexander A. Klimov)

   - Improve STACKLEAK code generation on x86 (Alexander Popov)"

* tag 'gcc-plugins-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: Replace HTTP links with HTTPS ones
  gcc-plugins/stackleak: Add 'verbose' plugin parameter
  gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving
  ARM: vdso: Don't use gcc plugins for building vgettimeofday.c
  gcc-plugins/stackleak: Don't instrument itself
 2020-08-04 13:26:06 -07:00
Linus Torvalds
19a93823cf pstore update 
- Fix linking when crypto API disabled (Matteo Croce)
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Merge tag 'pstore-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull pstore update from Kees Cook:
 "A tiny pstore update which fixes a very corner-case build failure:

   - Fix linking when crypto API disabled (Matteo Croce)"

* tag 'pstore-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore: Fix linking when crypto API disabled
 2020-08-04 13:22:38 -07:00
Linus Torvalds
c0842fbc1b random32: move the pseudo-random 32-bit definitions to prandom.h 
The addition of percpu.h to the list of includes in random.h revealed
some circular dependencies on arm64 and possibly other platforms.  This
include was added solely for the pseudo-random definitions, which have
nothing to do with the rest of the definitions in this file but are
still there for legacy reasons.

This patch moves the pseudo-random parts to linux/prandom.h and the
percpu.h include with it, which is now guarded by _LINUX_PRANDOM_H and
protected against recursive inclusion.

A further cleanup step would be to remove this from <linux/random.h>
entirely, and make people who use the prandom infrastructure include
just the new header file.  That's a bit of a churn patch, but grepping
for "prandom_" and "next_pseudo_random32" "struct rnd_state" should
catch most users.

But it turns out that that nice cleanup step is fairly painful, because
a _lot_ of code currently seems to depend on the implicit include of
<linux/random.h>, which can currently come in a lot of ways, including
such fairly core headfers as <linux/net.h>.

So the "nice cleanup" part may or may never happen.

Fixes: 1c9df907da ("random: fix circular include dependency on arm64 after addition of percpu.h")
Tested-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-08-03 23:24:26 -07:00
Linus Torvalds
2baa85d692 ACPI updates for 5.9-rc1 
- Eliminate significant AML processing overhead related to using
    operation regions in system memory by reworking the management
    of memory mappings in the ACPI code to defer unmap operations
    (to do them outside of the ACPICA locks, among other things) and
    making the memory operation reagion handler avoid releasing memory
    mappings created by it too early (Rafael Wysocki).
 
  - Update the ACPICA code in the kernel to upstream revision
    20200717:
 
    * Prevent operation region reference counts from overflowing in
      some cases (Erik Kaneda).
 
    * Replace one-element array with flexible-array (Gustavo A. R.
      Silva).
 
  - Fix ACPI PCI hotplug reference counting (Rafael Wysocki).
 
  - Drop last bits of the ACPI procfs interface (Thomas Renninger).
 
  - Drop some redundant checks from the code parsing ACPI tables
    related to NUMA (Hanjun Guo).
 
  - Avoid redundant object evaluation in the ACPI device properties
    handling code (Heikki Krogerus).
 
  - Avoid unecessary memory overhead related to storing the signatures
    of the ACPI tables recognized by the kernel (Ard Biesheuvel).
 
  - Add missing newline characters when printing module parameter
    values in some places (Xiongfeng Wang).
 
  - Update the link to the ACPI specifications in some places (Tiezhu
    Yang).
 
  - Use the fallthrough pseudo-keyword in the ACPI code (Gustavo A. R.
    Silva).
 
  - Drop redundant variable initialization from the APEI code (Colin
    Ian King).
 
  - Drop uninitialized_var() from the ACPI PAD driver (Jason Yan).
 
  - Replace HTTP links with HTTPS ones in the ACPI code (Alexander A.
    Klimov).
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Merge tag 'acpi-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These eliminate significant AML processing overhead related to using
  operation regions in system memory, update the ACPICA code in the
  kernel to upstream revision 20200717 (including a fix to prevent
  operation region reference counts from overflowing in some cases),
  remove the last bits of the (long deprecated) ACPI procfs interface
  and do some assorted cleanups.

  Specifics:

   - Eliminate significant AML processing overhead related to using
     operation regions in system memory by reworking the management of
     memory mappings in the ACPI code to defer unmap operations (to do
     them outside of the ACPICA locks, among other things) and making
     the memory operation reagion handler avoid releasing memory
     mappings created by it too early (Rafael Wysocki).

   - Update the ACPICA code in the kernel to upstream revision 20200717:

       * Prevent operation region reference counts from overflowing in
         some cases (Erik Kaneda).

       * Replace one-element array with flexible-array (Gustavo A. R.
         Silva).

   - Fix ACPI PCI hotplug reference counting (Rafael Wysocki).

   - Drop last bits of the ACPI procfs interface (Thomas Renninger).

   - Drop some redundant checks from the code parsing ACPI tables
     related to NUMA (Hanjun Guo).

   - Avoid redundant object evaluation in the ACPI device properties
     handling code (Heikki Krogerus).

   - Avoid unecessary memory overhead related to storing the signatures
     of the ACPI tables recognized by the kernel (Ard Biesheuvel).

   - Add missing newline characters when printing module parameter
     values in some places (Xiongfeng Wang).

   - Update the link to the ACPI specifications in some places (Tiezhu
     Yang).

   - Use the fallthrough pseudo-keyword in the ACPI code (Gustavo A. R.
     Silva).

   - Drop redundant variable initialization from the APEI code (Colin
     Ian King).

   - Drop uninitialized_var() from the ACPI PAD driver (Jason Yan).

   - Replace HTTP links with HTTPS ones in the ACPI code (Alexander A.
     Klimov)"

* tag 'acpi-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
  ACPI: APEI: remove redundant assignment to variable rc
  ACPI: NUMA: Remove the useless 'node >= MAX_NUMNODES' check
  ACPI: NUMA: Remove the useless sub table pointer check
  ACPI: tables: Remove the duplicated checks for acpi_parse_entries_array()
  ACPICA: Update version to 20200717
  ACPICA: Do not increment operation_region reference counts for field units
  ACPICA: Replace one-element array with flexible-array
  ACPI: Replace HTTP links with HTTPS ones
  ACPI: Use valid link to the ACPI specification
  ACPI: OSL: Clean up the removal of unused memory mappings
  ACPI: OSL: Use deferred unmapping in acpi_os_unmap_iomem()
  ACPI: OSL: Use deferred unmapping in acpi_os_unmap_generic_address()
  ACPICA: Preserve memory opregion mappings
  ACPI: OSL: Implement deferred unmapping of ACPI memory
  ACPI: Use fallthrough pseudo-keyword
  PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context()
  ACPI: tables: avoid relocations for table signature array
  ACPI: PAD: Eliminate usage of uninitialized_var() macro
  ACPI: sysfs: add newlines when printing module parameters
  ACPI: EC: add newline when printing 'ec_event_clearing' module parameter
  ...
 2020-08-03 20:37:22 -07:00
Linus Torvalds
0408497800 Power management updates for 5.9-rc1 
- Make the Energy Model cover non-CPU devices (Lukasz Luba).
 
  - Add Ice Lake server idle states table to the intel_idle driver
    and eliminate a redundant static variable from it (Chen Yu,
    Rafael Wysocki).
 
  - Eliminate all W=1 build warnings from cpufreq (Lee Jones).
 
  - Add support for Sapphire Rapids and for Power Limit 4 to the
    Intel RAPL power capping driver (Sumeet Pawnikar, Zhang Rui).
 
  - Fix function name in kerneldoc comments in the idle_inject power
    capping driver (Yangtao Li).
 
  - Fix locking issues with cpufreq governors and drop a redundant
    "weak" function definition from cpufreq (Viresh Kumar).
 
  - Rearrange cpufreq to register non-modular governors at the
    core_initcall level and allow the default cpufreq governor to
    be specified in the kernel command line (Quentin Perret).
 
  - Extend, fix and clean up the intel_pstate driver (Srinivas
    Pandruvada, Rafael Wysocki):
 
    * Add a new sysfs attribute for disabling/enabling CPU
      energy-efficiency optimizations in the processor.
 
    * Make the driver avoid enabling HWP if EPP is not supported.
 
    * Allow the driver to handle numeric EPP values in the sysfs
      interface and fix the setting of EPP via sysfs in the active
      mode.
 
    * Eliminate a static checker warning and clean up a kerneldoc
      comment.
 
  - Clean up some variable declarations in the powernv cpufreq
    driver (Wei Yongjun).
 
  - Fix up the ->enter_s2idle callback definition to cover the case
    when it points to the same function as ->idle correctly (Neal
    Liu).
 
  - Rearrange and clean up the PSCI cpuidle driver (Ulf Hansson).
 
  - Make the PM core emit "changed" uevent when adding/removing the
    "wakeup" sysfs attribute of devices (Abhishek Pandit-Subedi).
 
  - Add a helper macro for declaring PM callbacks and use it in the
    MMC jz4740 driver (Paul Cercueil).
 
  - Fix white space in some places in the hibernate code and make the
    system-wide PM code use "const char *" where appropriate (Xiang
    Chen, Alexey Dobriyan).
 
  - Add one more "unsafe" helper macro to the freezer to cover the NFS
    use case (He Zhe).
 
  - Change the language in the generic PM domains framework to use
    parent/child terminology and clean up a typo and some comment
    fromatting in that code (Kees Cook, Geert Uytterhoeven).
 
  - Update the operating performance points OPP framework (Lukasz
    Luba, Andrew-sh.Cheng, Valdis Kletnieks):
 
    * Refactor dev_pm_opp_of_register_em() and update related drivers.
 
    * Add a missing function export.
 
    * Allow disabled OPPs in dev_pm_opp_get_freq().
 
  - Update devfreq core and drivers (Chanwoo Choi, Lukasz Luba, Enric
    Balletbo i Serra, Dmitry Osipenko, Kieran Bingham, Marc Zyngier):
 
    * Add support for delayed timers to the devfreq core and make the
      Samsung exynos5422-dmc driver use it.
 
    * Unify sysfs interface to use "df-" as a prefix in instance names
      consistently.
 
    * Fix devfreq_summary debugfs node indentation.
 
    * Add the rockchip,pmu phandle to the rk3399_dmc driver DT
      bindings.
 
    * List Dmitry Osipenko as the Tegra devfreq driver maintainer.
 
    * Fix typos in the core devfreq code.
 
  - Update the pm-graph utility to version 5.7 including a number of
    fixes related to suspend-to-idle (Todd Brandt).
 
  - Fix coccicheck errors and warnings in the cpupower utility (Shuah
    Khan).
 
  - Replace HTTP links with HTTPs ones in multiple places (Alexander
    A. Klimov).
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Merge tag 'pm-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The most significant change here is the extension of the Energy Model
  to cover non-CPU devices (as well as CPUs) from Lukasz Luba.

  There is also some new hardware support (Ice Lake server idle states
  table for intel_idle, Sapphire Rapids and Power Limit 4 support in the
  RAPL driver), some new functionality in the existing drivers (eg. a
  new switch to disable/enable CPU energy-efficiency optimizations in
  intel_pstate, delayed timers in devfreq), some assorted fixes (cpufreq
  core, intel_pstate, intel_idle) and cleanups (eg. cpuidle-psci,
  devfreq), including the elimination of W=1 build warnings from cpufreq
  done by Lee Jones.

  Specifics:

   - Make the Energy Model cover non-CPU devices (Lukasz Luba).

   - Add Ice Lake server idle states table to the intel_idle driver and
     eliminate a redundant static variable from it (Chen Yu, Rafael
     Wysocki).

   - Eliminate all W=1 build warnings from cpufreq (Lee Jones).

   - Add support for Sapphire Rapids and for Power Limit 4 to the Intel
     RAPL power capping driver (Sumeet Pawnikar, Zhang Rui).

   - Fix function name in kerneldoc comments in the idle_inject power
     capping driver (Yangtao Li).

   - Fix locking issues with cpufreq governors and drop a redundant
     "weak" function definition from cpufreq (Viresh Kumar).

   - Rearrange cpufreq to register non-modular governors at the
     core_initcall level and allow the default cpufreq governor to be
     specified in the kernel command line (Quentin Perret).

   - Extend, fix and clean up the intel_pstate driver (Srinivas
     Pandruvada, Rafael Wysocki):

       * Add a new sysfs attribute for disabling/enabling CPU
         energy-efficiency optimizations in the processor.

       * Make the driver avoid enabling HWP if EPP is not supported.

       * Allow the driver to handle numeric EPP values in the sysfs
         interface and fix the setting of EPP via sysfs in the active
         mode.

       * Eliminate a static checker warning and clean up a kerneldoc
         comment.

   - Clean up some variable declarations in the powernv cpufreq driver
     (Wei Yongjun).

   - Fix up the ->enter_s2idle callback definition to cover the case
     when it points to the same function as ->idle correctly (Neal Liu).

   - Rearrange and clean up the PSCI cpuidle driver (Ulf Hansson).

   - Make the PM core emit "changed" uevent when adding/removing the
     "wakeup" sysfs attribute of devices (Abhishek Pandit-Subedi).

   - Add a helper macro for declaring PM callbacks and use it in the MMC
     jz4740 driver (Paul Cercueil).

   - Fix white space in some places in the hibernate code and make the
     system-wide PM code use "const char *" where appropriate (Xiang
     Chen, Alexey Dobriyan).

   - Add one more "unsafe" helper macro to the freezer to cover the NFS
     use case (He Zhe).

   - Change the language in the generic PM domains framework to use
     parent/child terminology and clean up a typo and some comment
     fromatting in that code (Kees Cook, Geert Uytterhoeven).

   - Update the operating performance points OPP framework (Lukasz Luba,
     Andrew-sh.Cheng, Valdis Kletnieks):

       * Refactor dev_pm_opp_of_register_em() and update related drivers.

       * Add a missing function export.

       * Allow disabled OPPs in dev_pm_opp_get_freq().

   - Update devfreq core and drivers (Chanwoo Choi, Lukasz Luba, Enric
     Balletbo i Serra, Dmitry Osipenko, Kieran Bingham, Marc Zyngier):

       * Add support for delayed timers to the devfreq core and make the
         Samsung exynos5422-dmc driver use it.

       * Unify sysfs interface to use "df-" as a prefix in instance
         names consistently.

       * Fix devfreq_summary debugfs node indentation.

       * Add the rockchip,pmu phandle to the rk3399_dmc driver DT
         bindings.

       * List Dmitry Osipenko as the Tegra devfreq driver maintainer.

       * Fix typos in the core devfreq code.

   - Update the pm-graph utility to version 5.7 including a number of
     fixes related to suspend-to-idle (Todd Brandt).

   - Fix coccicheck errors and warnings in the cpupower utility (Shuah
     Khan).

   - Replace HTTP links with HTTPs ones in multiple places (Alexander A.
     Klimov)"

* tag 'pm-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (71 commits)
  cpuidle: ACPI: fix 'return' with no value build warning
  cpufreq: intel_pstate: Fix EPP setting via sysfs in active mode
  cpufreq: intel_pstate: Rearrange the storing of new EPP values
  intel_idle: Customize IceLake server support
  PM / devfreq: Fix the wrong end with semicolon
  PM / devfreq: Fix indentaion of devfreq_summary debugfs node
  PM / devfreq: Clean up the devfreq instance name in sysfs attr
  memory: samsung: exynos5422-dmc: Add module param to control IRQ mode
  memory: samsung: exynos5422-dmc: Adjust polling interval and uptreshold
  memory: samsung: exynos5422-dmc: Use delayed timer as default
  PM / devfreq: Add support delayed timer for polling mode
  dt-bindings: devfreq: rk3399_dmc: Add rockchip,pmu phandle
  PM / devfreq: tegra: Add Dmitry as a maintainer
  PM / devfreq: event: Fix trivial spelling
  PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent
  cpuidle: change enter_s2idle() prototype
  cpuidle: psci: Prevent domain idlestates until consumers are ready
  cpuidle: psci: Convert PM domain to platform driver
  cpuidle: psci: Fix error path via converting to a platform driver
  cpuidle: psci: Fail cpuidle registration if set OSI mode failed
  ...
 2020-08-03 20:28:08 -07:00
Linus Torvalds
d516840629 regmap: Updates for v5.9 
This release we've seen a couple of updates to make some DT based APIs
 use fwnode instead, allowing their use with ACPI systems, and a few
 cleanups.
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Merge tag 'regmap-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "This release we've seen a couple of updates to make some DT based APIs
  use fwnode instead, allowing their use with ACPI systems, and a few
  cleanups"

* tag 'regmap-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: fix duplicated word in <linux/regmap.h>
  regmap: Switch to use fwnode instead of OF one
  regmap-irq: use fwnode instead of device node in add_irq_chip()
  regmap: remove stray space
  regmap: convert all regmap_update_bits() and co. macros to static inlines
 2020-08-03 20:13:06 -07:00
Linus Torvalds
b171373902 spi: Updates for v5.9 
A fairly quiet release for SPI, nothing really going on in the core
 although there's been quite a bit of driver related activity.  This pull
 request includes the addition of some shared code in drivers/memory for
 the Renesas RPC-IF which is used by a newly added SPI driver, the memory
 subsystem doesn't seem to have a fixed maintainer at the minute and this
 seemed like the most sensible way to get that hardware supported.
 
  - Quite a few cleanups and optimizations for the Altera, Qualcomm GENI,
    sun6i and lantiq drivers.
  - Several more GPIO descriptor conversions.
  - Move the Cadence QuadSPI driver from drivers/mtd to drivers/spi.
  - New support for Mediatek MT8192 and Renesas RPC-IF, R8A7742 and
    R8A774e1.
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Merge tag 'spi-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A fairly quiet release for SPI, nothing really going on in the core
  although there's been quite a bit of driver related activity.

  This includes the addition of some shared code in drivers/memory for
  the Renesas RPC-IF which is used by a newly added SPI driver, the
  memory subsystem doesn't seem to have a fixed maintainer at the minute
  and this seemed like the most sensible way to get that hardware
  supported.

   - Quite a few cleanups and optimizations for the Altera, Qualcomm
     GENI, sun6i and lantiq drivers.

   - Several more GPIO descriptor conversions.

   - Move the Cadence QuadSPI driver from drivers/mtd to drivers/spi.

   - New support for Mediatek MT8192 and Renesas RPC-IF, R8A7742 and
     R8A774e1"

* tag 'spi-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (119 commits)
  dt-bindings: lpspi: New property in document DT bindings for LPSPI
  spi: lpspi: fix using CS discontinuously on i.MX8DXLEVK
  spi: lpspi: remove unused fsl_lpspi->chipselect
  spi: lpspi: Fix kernel warning dump when probe fail after calling spi_register
  spi: rockchip: Fix error in SPI slave pio read
  spi: rockchip: Support 64-location deep FIFOs
  spi: rockchip: Config spi rx dma burst size depend on xfer length
  spi: spi-topcliff-pch: drop call to wakeup-disable
  spi: spidev: Align buffers for DMA
  spi: correct kernel-doc inconsistency
  spi: sun4i: update max transfer size reported
  spi: imx: enable runtime pm support
  spi: update bindings for MT8192 SoC
  spi: mediatek: add spi support for mt8192 IC
  spi: Add bindings for Lightning Mountain SoC
  spi: lantiq: Add support to Lightning Mountain SoC
  spi: lantiq: Move interrupt configuration to SoC specific data structure
  spi: lantiq: Add fifo size bit mask in SoC specific data structure
  spi: lantiq: Add support to acknowledge interrupt
  spi: lantiq: Move interrupt control register offesets to SoC specific data structure
  ...
 2020-08-03 20:08:51 -07:00
Linus Torvalds
bbb839901f regulator: Updates for v5.9 
This time around the bulk of the work on the regulator API has been
 cleanups of various kinds, partly but not entirely inspired by the W=1
 stuff that 0day turned on.  There's also been a fairly large crop of new
 drivers, and a few bugfixes for existing drivers.
 
  - Mode setting support for MT6397 and DA9211.
  - New drivers for ChromeOS embedded controllers, Fairchild FAN53880,
    NXP PCA9450, Qualcomm LABIBB, MP5496, and VBUS booster, and Silergy
    SY8827N
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Merge tag 'regulator-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This time around the bulk of the work on the regulator API has been
  cleanups of various kinds, partly but not entirely inspired by the W=1
  stuff that 0day turned on.

  There's also been a fairly large crop of new drivers, and a few
  bugfixes for existing drivers.

   - Mode setting support for MT6397 and DA9211.

   - New drivers for ChromeOS embedded controllers, Fairchild FAN53880,
     NXP PCA9450, Qualcomm LABIBB, MP5496, and VBUS booster, and Silergy
     SY8827N"

* tag 'regulator-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (67 commits)
  regulator: add the sub node names for the MP5496 PMIC
  regulator: cros-ec-regulator: Fix double free of desc->name.
  platform/chrome: cros_ec: Fix host command for regulator control.
  regulator: pca9450: Convert to use module_i2c_driver
  regulator: fix memory leak on error path of regulator_register()
  regulator: Replace HTTP links with HTTPS ones
  regulator: convert QCOM SMD-RPM regulator document to YAML schema
  regulator: gpio: Honor regulator-boot-on property
  regulator: core: Add destroy_regulator()
  regulator: Correct kernel-doc inconsistency
  regulator: Add labibb regulator binding
  regulator: qcom: Add labibb driver
  regulator: Allow regulators to verify enabled during enable()
  regulator: cros-ec: Constify cros_ec_regulator_voltage_ops
  regulator: devres: Standardise on function documentation headers
  regulator: of_regulator: Add missing colon for rdev kerneldoc argument
  regulator: devres: Fix issues with kerneldoc headers
  regulator: fan53880: Add support for COMPILE_TEST
  regulator: fan53880: Add missing .owner field in regulator_desc
  dt-bindings: regulator: add pca9450 regulator yaml
  ...
 2020-08-03 20:05:44 -07:00
Linus Torvalds
f8851cb2d0 17ed808ad2 ("EDAC: Fix reference count leaks") 
e370f886fe ("EDAC: Remove edac_get_dimm_by_index()")
 b9cae27728 ("EDAC/ghes: Scan the system once on driver init")
 b001694d60 ("EDAC/ghes: Remove unused members of struct ghes_edac_pvt, rename it to ghes_pvt")
 cb51a371d0 ("EDAC/ghes: Setup DIMM label from DMI and use it in error reports")
 8807e15597 ("EDAC, {skx,i10nm}: Use CPU stepping macro to pass configurations")
 e9ff6636d3 ("EDAC/mc: Call edac_inc_ue_error() before panic")
 30bf38e434 ("EDAC, pnd2: Set MCE_PRIO_EDAC priority for pnd2_mce_dec notifier")
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Merge tag 'edac_updates_for_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Tony Luck:
 "Boris is on vacation and aske me to send you the EDAC changes"

* tag 'edac_updates_for_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC: Fix reference count leaks
  EDAC: Remove edac_get_dimm_by_index()
  EDAC/ghes: Scan the system once on driver init
  EDAC/ghes: Remove unused members of struct ghes_edac_pvt, rename it to ghes_pvt
  EDAC/ghes: Setup DIMM label from DMI and use it in error reports
  EDAC, {skx,i10nm}: Use CPU stepping macro to pass configurations
  EDAC/mc: Call edac_inc_ue_error() before panic
  EDAC, pnd2: Set MCE_PRIO_EDAC priority for pnd2_mce_dec notifier
 2020-08-03 20:01:00 -07:00
Linus Torvalds
d4db4e5532 ARM: new SoC support for v5.9 
There are three SoC families newly dded to the 32-bit and
 64-bit Arm architecture code in the kernel this time:
 
  - Daniel Palmer adds initial support for two chips made by MStar, a
    taiwanese SoC manufacturer that became part of Mediatek in 2012. For
    now, the added support is fairly minimal, with just two of its
    Cortex-A7 based 32-bit camera chips getting support for a limited
    set of on-chip peripherals.
 
  - Lars Povlsen from Microchip adds support for their new Sparx5
    family of ethernet switch chips using 64-bit Cortex-A53 cores.
    These are descended from earlier VSC7xxx SparX and Ocelot chips
    using 32-bit MIPS cores.
 
  - Daniele Alessandrelli from Intel adds support for the new Keem Bay
    SoC for computer vision, built around a Movidius VPU with Linux
    running on Arm Cortex-A53 cores.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-newsoc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull new ARM SoC support from Arnd Bergmann:
 "There are three SoC families newly dded to the 32-bit and 64-bit Arm
  architecture code in the kernel this time:

   - Daniel Palmer adds initial support for two chips made by MStar, a
     taiwanese SoC manufacturer that became part of Mediatek in 2012.

     For now, the added support is fairly minimal, with just two of its
     Cortex-A7 based 32-bit camera chips getting support for a limited
     set of on-chip peripherals.

   - Lars Povlsen from Microchip adds support for their new Sparx5
     family of ethernet switch chips using 64-bit Cortex-A53 cores.

     These are descended from earlier VSC7xxx SparX and Ocelot chips
     using 32-bit MIPS cores.

   - Daniele Alessandrelli from Intel adds support for the new Keem Bay
     SoC for computer vision, built around a Movidius VPU with Linux
     running on Arm Cortex-A53 cores"

* tag 'arm-newsoc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (38 commits)
  ARM: mstar: Correct the compatible string for pmsleep
  dt-bindings: arm: mstar: remove the binding description for mstar,pmsleep
  dt-bindings: mfd: syscon: add compatible string for mstar,msc313-pmsleep
  ARM: mstar: Add reboot support
  ARM: mstar: Add "pmsleep" node to base dtsi
  ARM: mstar: Add PMU
  ARM: mstar: Adjust IMI size for infinity3
  ARM: mstar: Adjust IMI size for mercury5
  ARM: mstar: Adjust IMI size of infinity
  ARM: mstar: Add IMI SRAM region
  dt-bindings: arm: mstar: Move existing MStar binding descriptions
  dt-bindings: arm: mstar: Add binding details for mstar, pmsleep
  ARM: mstar: Fix dts filename for 70mai midrive d08
  ARM: mstar: Add dts for 70mai midrive d08
  ARM: mstar: Add dts for msc313(e) based BreadBee boards
  ARM: mstar: Add mercury5 series dtsis
  ARM: mstar: Add infinity/infinity3 family dtsis
  ARM: mstar: Add Armv7 base dtsi
  ARM: mstar: Add binding details for mstar,l3bridge
  ARM: mstar: Add machine for MStar/Sigmastar Armv7 SoCs
  ...
 2020-08-03 19:38:30 -07:00
Linus Torvalds
822ef14e9d ARM: SoC driver updates for v5.9 
A couple of subsystems have their own subsystem maintainers but choose
 to have the code merged through the soc tree as upstream, as the code
 tends to be used across multiple SoCs or has SoC specific drivers itself:
 
  - memory controllers:
      Krzysztof Kozlowski takes ownership of the drivers/memory
      subsystem and its drivers, starting out with a set of cleanup
      patches.
      A larger driver for the Tegra memory controller that was accidentally
      missed for v5.8 is now added.
 
  - reset controllers:
      Only minor updates to drivers/reset this time
 
  - firmware:
      The "turris mox" firmware driver gains support for signed firmware blobs
      The tegra firmware driver gets extended to export some debug information
      Various updates to i.MX firmware drivers, mostly cosmetic
 
  - ARM SCMI/SCPI:
      A new mechanism for platform notifications is added, among a number
      of minor changes.
 
  - optee:
      Probing of the TEE bus is rewritten to better support detection of
      devices that depend on the tee-supplicant user space.
      A new firmware based trusted platform module (fTPM) driver is added
      based on OP-TEE
 
  - SoC attributes:
      A new driver is added to provide a generic soc_device for identifying
      a machine through the SMCCC ARCH_SOC_ID firmware interface rather than
      by probing SoC family specific registers.
      The series also contains some cleanups to the common soc_device code.
 
 There are also a number of updates to SoC specific drivers,
 the main ones are:
 
  - Mediatek cmdq driver gains a few in-kernel interfaces
 
  - Minor updates to Qualcomm RPMh, socinfo, rpm drivers, mostly adding
    support for additional SoC variants
 
  - The Qualcomm GENI core code gains interconnect path voting and
    performance level support, and integrating this into a number of
    device drivers.
 
  - A new driver for Samsung Exynos5800 voltage coupler for
 
  - Renesas RZ/G2H (R8A774E1) SoC support gets added to a couple of SoC
    specific device drivers
 
  - Updates to the TI K3 Ring Accelerator driver
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Merge tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "A couple of subsystems have their own subsystem maintainers but choose
  to have the code merged through the soc tree as upstream, as the code
  tends to be used across multiple SoCs or has SoC specific drivers
  itself:

   - memory controllers:

     Krzysztof Kozlowski takes ownership of the drivers/memory subsystem
     and its drivers, starting out with a set of cleanup patches.

     A larger driver for the Tegra memory controller that was
     accidentally missed for v5.8 is now added.

   - reset controllers:

     Only minor updates to drivers/reset this time

   - firmware:

     The "turris mox" firmware driver gains support for signed firmware
     blobs The tegra firmware driver gets extended to export some debug
     information Various updates to i.MX firmware drivers, mostly
     cosmetic

   - ARM SCMI/SCPI:

     A new mechanism for platform notifications is added, among a number
     of minor changes.

   - optee:

     Probing of the TEE bus is rewritten to better support detection of
     devices that depend on the tee-supplicant user space. A new
     firmware based trusted platform module (fTPM) driver is added based
     on OP-TEE

   - SoC attributes:

     A new driver is added to provide a generic soc_device for
     identifying a machine through the SMCCC ARCH_SOC_ID firmware
     interface rather than by probing SoC family specific registers.

     The series also contains some cleanups to the common soc_device
     code.

  There are also a number of updates to SoC specific drivers, the main
  ones are:

   - Mediatek cmdq driver gains a few in-kernel interfaces

   - Minor updates to Qualcomm RPMh, socinfo, rpm drivers, mostly adding
     support for additional SoC variants

   - The Qualcomm GENI core code gains interconnect path voting and
     performance level support, and integrating this into a number of
     device drivers.

   - A new driver for Samsung Exynos5800 voltage coupler for

   - Renesas RZ/G2H (R8A774E1) SoC support gets added to a couple of SoC
     specific device drivers

   - Updates to the TI K3 Ring Accelerator driver"

* tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (164 commits)
  soc: qcom: geni: Fix unused label warning
  soc: qcom: smd-rpm: Fix kerneldoc
  memory: jz4780_nemc: Only request IO memory the driver will use
  soc: qcom: pdr: Reorder the PD state indication ack
  MAINTAINERS: Add Git repository for memory controller drivers
  memory: brcmstb_dpfe: Fix language typo
  memory: samsung: exynos5422-dmc: Correct white space issues
  memory: samsung: exynos-srom: Correct alignment
  memory: pl172: Enclose macro argument usage in parenthesis
  memory: of: Correct kerneldoc
  memory: omap-gpmc: Fix language typo
  memory: omap-gpmc: Correct white space issues
  memory: omap-gpmc: Use 'unsigned int' for consistency
  memory: omap-gpmc: Enclose macro argument usage in parenthesis
  memory: omap-gpmc: Correct kerneldoc
  memory: mvebu-devbus: Align with open parenthesis
  memory: mvebu-devbus: Add missing braces to all arms of if statement
  memory: bt1-l2-ctl: Add blank lines after declarations
  soc: TI knav_qmss: make symbol 'knav_acc_range_ops' static
  firmware: ti_sci: Replace HTTP links with HTTPS ones
  ...
 2020-08-03 19:30:59 -07:00
Linus Torvalds
6ce076f415 ARM: SoC changes for v5.9 
These are mostly cosmetic changes and minor bugfixes for the SoC
 specific code, across the 32-bit at91, mvebu, davinci, samsung, and
 omap platforms.
 
 The main notable changes are for the Samsung Exynos platform, which
 sees a rewrite of gpio handling and a change to restore and adds
 a workaround for a problem with cpuidle support.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-soc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC updates from Arnd Bergmann:
 "These are mostly cosmetic changes and minor bugfixes for the SoC
  specific code, across the 32-bit at91, mvebu, davinci, samsung, and
  omap platforms.

  The main notable changes are for the Samsung Exynos platform, which
  sees a rewrite of gpio handling and a change to restore and adds a
  workaround for a problem with cpuidle support"

* tag 'arm-soc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
  MAINTAINERS: arm/amlogic: add designated reviewers
  ARM: davinci: dm646x-evm: Simplify error handling in 'evm_sw_setup()'
  ARM: davinci: Fix trivial spelling
  ARM: davinci: Replace HTTP links with HTTPS ones
  ARM: s3c24xx: Replace HTTP links with HTTPS ones
  ARM: orion/gpio: Make use of for_each_requested_gpio()
  ARM: at91: Replace HTTP links with HTTPS ones
  ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
  ARM: rpc: Change blacklist to quirklist in ecode.c file
  ARM: OMAP: Replace HTTP links with HTTPS ones
  ARM: s3c24xx: leds: Convert to use GPIO descriptors
  udc: lpc32xx: mark local function static
  ARM: exynos: MCPM: Restore big.LITTLE cpuidle support
  ARM: exynos: clear L310_AUX_CTRL_FULL_LINE_ZERO in default l2c_aux_val
 2020-08-03 19:24:55 -07:00
Linus Torvalds
2f3fbfdaf7 ARM: SoC DT changes for 5.9 
As usual, there are many patches addressing minor issues in existing
 DTS files, such as DTC warnings, or adding support for additional
 peripherals.
 
 There are three added SoCs in existing product families:
 
  - Amazon:
     Alpine v3 is a 16-core Cortex-A72 SoC from Amazon's Annapurna Labs,
     otherwise known as AL73400 or first-generation Graviton, and following
     the already supported Cortex-A1`5 and Cortex-A57 based Alpine chips.
     This one is added together with the official Evaluation platform.
 
  - Qualcomm:
     The Snapdragon SDM630 platform is a family of mid-range mobile phone
     chips from 2017 based on Cortex-A53 or Kryo 260 CPUs.
     A total of five end-user products are added based on these, all
     Android phones from Sony: Xperia 10, 10 Plus, XA2, XA2 Plus and
     XA2 Ultra.
 
  - Renesas:
     RZ/G2H (r8a774e1) is currently the top model in the Renesas RZ/G
     family, and apparently closely related to the RZ/G2N and RZ/G2M
     models we already support but has a faster GPU and additional
     on-chip peripherals.
     It is added along with the HopeRun HiHope RZ/G2H development board
 
 A small number of new boards for already supported SoCs also debut:
 
  - Allwinner sunxi:
     Only one new machine, revision v1.2 of the Pine64 PinePhone
     (non-Android) smartphone, containing minor changes compared to
     earlier versions.
 
  - Amlogic Meson:
     WeTek Core2 is an Amlogic S912 (GXM) based Set-top-box
 
  - Aspeed:
     EthanolX is AMD's EPYC data center rerence platform, using an
     ASpeed AST2600 baseboard management controller.
 
  - Mediatek:
     Lenovo IdeaPad Duet 10.1" (kukui/krane) is a new Chromebook
     based on the MT8183 (Helio P60t) SoC.
 
  - Nvidia Tegra:
     ASUS Google Nexus 7 and Acer Iconia Tab A500 are two Android
     tablets from around 2012 using Tegra 3 and Tegra 2, respectively.
     Thanks to PostmarketOS, these can now run mainline kernels
     and become useful again.
 
     The Jetson Xavier NX Developer Kit uses a SoM and carrier board
     for the Tegra194, their latest 64-bit chip based on Carmel CPU
     cores and Volta graphics.
 
  - NXP i.MX:
     Five new boards based on the 32-bit i.MX6 series are added:
     The MYiR MYS-6ULX single-board computer, and four different
     models of industrial computers from Protonic.
 
  - Qualcomm:
     MikroTik RouterBoard 3011 is a rackmounted router based on the
     32-bit IPQ8064 networking SoC
     Three older phones get added, the Snapdragon 808 (msm8992) based
     Xiaomi Libra (Mi 4C) and Microsoft Lumia 950, originally running
     Windows Phone, and the Snapdragon 810 (msm8994) based Sony
     Xperia Z5.
 
  - Renesas:
     In addition to the HiHope RZ/G2H board mentioned above, we gain
     support for board versions 3.0 and 4.0 of the earlier RZ/G2M and
     RZ/G2N reference boards.
     Beacon EmbeddedWorks adds another SoM+Carrier development board
     for RZ/G2M.
 
  - Rockchips:
     Radxa Rock Pi N8 development board and the VMARC RK3288 SoM it
     is based on, using the high-end 32-bit rk3288 SoC.
 
 Notable updates to existing platforms are usually for added on-chip
 peripherals, including:
 
  - ASpeed AST2xxx (various)
 
  - Allwinner (cpufreq, thermal, Pinephone touchscreen)
 
  - Amlogic Meson (audio, gpu dvdfs, board updates)
 
  - Arm Versatile
 
  - Broadcom (board updates for switch ports, Raspberry pi clock updates)
 
  - Hisilicon (various)
 
  - Intel/Altera SoCFPGA (various)
 
  - Marvell Armada 7xxx/8xxx (smmu)
 
  - Marvell MMP (GPU on mmp2/mmp3)
 
  - Mediatek mt8183 (USB, pericfg)
 
  - NXP Layerscape (VPU, thermal, DSPI)
 
  - NXP i.MX (VPU, bindings, board updates)
 
  - Nvidia Tegra194 (GPU)
 
  - Qualcomm (GPU, Interconnect, ...)
 
  - Renesas R-Car (SPI, IPMMU, board updates)
 
  - STMicroelectronics STM32 (various)
 
  - Samsung Exynos (various)
 
  - Socionext Uniphier (updates to serial, and pcie)
 
  - TI K3 (serdes, usb3, audio, sd, chipid)
 
  - TI OMAP (IPU/DSP remoteproc changes, dropping platform data)
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-dt-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC DT updates from Arnd Bergmann:
 "As usual, there are many patches addressing minor issues in existing
  DTS files, such as DTC warnings, or adding support for additional
  peripherals.

  There are three added SoCs in existing product families:

   - Amazon:

     Alpine v3 is a 16-core Cortex-A72 SoC from Amazon's Annapurna Labs,
     otherwise known as AL73400 or first-generation Graviton, and
     following the already supported Cortex-A1`5 and Cortex-A57 based
     Alpine chips. This one is added together with the official
     Evaluation platform.

   - Qualcomm:

     The Snapdragon SDM630 platform is a family of mid-range mobile
     phone chips from 2017 based on Cortex-A53 or Kryo 260 CPUs. A total
     of five end-user products are added based on these, all Android
     phones from Sony: Xperia 10, 10 Plus, XA2, XA2 Plus and XA2 Ultra.

   - Renesas:

     RZ/G2H (r8a774e1) is currently the top model in the Renesas RZ/G
     family, and apparently closely related to the RZ/G2N and RZ/G2M
     models we already support but has a faster GPU and additional
     on-chip peripherals. It is added along with the HopeRun HiHope
     RZ/G2H development board

  A small number of new boards for already supported SoCs also debut:

   - Allwinner sunxi:

     Only one new machine, revision v1.2 of the Pine64 PinePhone
     (non-Android) smartphone, containing minor changes compared to
     earlier versions.

   - Amlogic Meson:

     WeTek Core2 is an Amlogic S912 (GXM) based Set-top-box

   - Aspeed:

     EthanolX is AMD's EPYC data center rerence platform, using an
     ASpeed AST2600 baseboard management controller.

   - Mediatek:

     Lenovo IdeaPad Duet 10.1" (kukui/krane) is a new Chromebook based
     on the MT8183 (Helio P60t) SoC.

   - Nvidia Tegra:

     ASUS Google Nexus 7 and Acer Iconia Tab A500 are two Android
     tablets from around 2012 using Tegra 3 and Tegra 2, respectively.
     Thanks to PostmarketOS, these can now run mainline kernels and
     become useful again.

     The Jetson Xavier NX Developer Kit uses a SoM and carrier board for
     the Tegra194, their latest 64-bit chip based on Carmel CPU cores
     and Volta graphics.

   - NXP i.MX:

     Five new boards based on the 32-bit i.MX6 series are added: The
     MYiR MYS-6ULX single-board computer, and four different models of
     industrial computers from Protonic.

   - Qualcomm:

     MikroTik RouterBoard 3011 is a rackmounted router based on the
     32-bit IPQ8064 networking SoC

     Three older phones get added, the Snapdragon 808 (msm8992) based
     Xiaomi Libra (Mi 4C) and Microsoft Lumia 950, originally running
     Windows Phone, and the Snapdragon 810 (msm8994) based Sony Xperia
     Z5.

   - Renesas:

     In addition to the HiHope RZ/G2H board mentioned above, we gain
     support for board versions 3.0 and 4.0 of the earlier RZ/G2M and
     RZ/G2N reference boards. Beacon EmbeddedWorks adds another
     SoM+Carrier development board for RZ/G2M.

   - Rockchips:

     Radxa Rock Pi N8 development board and the VMARC RK3288 SoM it is
     based on, using the high-end 32-bit rk3288 SoC.

  Notable updates to existing platforms are usually for added on-chip
  peripherals, including:

   - ASpeed AST2xxx (various)

   - Allwinner (cpufreq, thermal, Pinephone touchscreen)

   - Amlogic Meson (audio, gpu dvdfs, board updates)

   - Arm Versatile

   - Broadcom (board updates for switch ports, Raspberry pi clock updates)

   - Hisilicon (various)

   - Intel/Altera SoCFPGA (various)

   - Marvell Armada 7xxx/8xxx (smmu)

   - Marvell MMP (GPU on mmp2/mmp3)

   - Mediatek mt8183 (USB, pericfg)

   - NXP Layerscape (VPU, thermal, DSPI)

   - NXP i.MX (VPU, bindings, board updates)

   - Nvidia Tegra194 (GPU)

   - Qualcomm (GPU, Interconnect, ...)

   - Renesas R-Car (SPI, IPMMU, board updates)

   - STMicroelectronics STM32 (various)

   - Samsung Exynos (various)

   - Socionext Uniphier (updates to serial, and pcie)

   - TI K3 (serdes, usb3, audio, sd, chipid)

   - TI OMAP (IPU/DSP remoteproc changes, dropping platform data)"

* tag 'arm-dt-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (605 commits)
  arm64: dts: meson: odroid-n2: add jack audio output support
  arm64: dts: meson: odroid-n2: enable audio loopback
  ARM: dts: berlin: Align L2 cache-controller nodename with dtschema
  arm64: dts: qcom: Add Microsoft Lumia 950 (Talkman) device tree
  arm64: dts: qcom: Add Xiaomi Libra (Mi 4C) device tree
  arm64: dts: qcom: msm8992: Add RPMCC node
  arm64: dts: qcom: msm8992: Add PSCI support.
  arm64: dts: qcom: msm8992: Add PMU node
  arm64: dts: qcom: msm8992: Add BLSP2_UART2 and I2C nodes
  arm64: dts: qcom: msm8992: Add SPMI PMIC arbiter device
  arm64: dts: qcom: msm8992: Add a SCM node
  arm64: dts: qcom: msm8992: Add a proper CPU map
  arm64: dts: qcom: bullhead: Move UART pinctrl to SoC
  arm64: dts: qcom: bullhead: Add qcom,msm-id
  arm64: dts: qcom: msm8992: Fix SDHCI1
  arm64: dts: qcom: msm8992: Modernize the DTS style
  arm64: dts: qcom: Add support for Sony Xperia Z5 (SoMC Sumire-RoW)
  arm64: dts: qcom: Move msm8994-smd-rpm contents to lg-bullhead.
  arm64: dts: qcom: msm8994: Add support for SMD RPM
  arm64: dts: qcom: msm8992: Add a label to rpm-requests
  ...
 2020-08-03 19:19:34 -07:00
Linus Torvalds
92c59e126b ARM: defconfig updates for 5.9 
These are the usual updates to arm/arm64 defconfig files,
 enabling newly added drivers and addressing changes to Kconfig
 files.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-defconfig-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM defconfig updates from Arnd Bergmann:
 "These are the usual updates to arm/arm64 defconfig files, enabling
  newly added drivers and addressing changes to Kconfig files"

* tag 'arm-defconfig-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (38 commits)
  ARM: configs: at91: sama5: enable CAN PLATFORM driver
  ARM: configs: at91: sama5: enable bridge and VLAN filtering
  ARM: configs: at91: sama5: add support for KSZ ethernet switches
  arm64: defconfig: Enable AM654x SDHCI controller
  arm64: arch_k3: enable chipid driver
  arm/arm64: defconfig: Update configs to use the new CROS_EC options
  ARM: tegra_defconfig: Enable options useful for Nexus 7 and Acer A500
  ARM: tegra: Enable CPUFREQ userspace governor
  arm64: defconfig: enable CONFIG_FSL_ENETC_QOS
  arm64: defconfig: enable TSN features for ENETC and similiar hardware
  ARM: imx_v6_v7_defconfig: Support i.MX8MM
  arm64: defconfig: enable RTC and audio support on Kontron sl28 boards
  arm64: defconfig: add pca9450 pmic driver
  ARM: configs: sunxi: Enable crypto related options
  ARM: sunxi: configs: Enable the Mailbox driver
  ARM: configs: sunxi: Enable the PS/2 controller
  ARM: configs: sunxi: Enable Lima
  ARM: configs: sunxi: Add DRM output-related options
  ARM: configs: sunxi: Enable ASoC options
  ARM: configs: sunxi: Enable Cedrus
  ...
 2020-08-03 19:17:58 -07:00
Linus Torvalds
09a0bd0776 platform-drivers-x86 for v5.9-1 
* ASUS WMI driver honors BAT1 name of the battery
   (quite a few new laptops are using it)
 * Dell WMI driver supports new key codes and backlight events
 * ThinkPad ACPI driver now may use standard charge threshold interface,
   it also has been updated to provide Laptop or Desktop mode to the user
 * Intel Speed Select Technology gained support on Sapphire Rapids platform
 * Regular update of Speed Select Technology tools
 * Mellanox has been updated to support complex attributes
 * PMC core driver has been fixed to show correct names for LPM0 register
 * HTTP links were replaced by HTTPS ones where it applies
 * Miscellaneous fixes and cleanups here and there
 
 The following is an automated git shortlog grouped by driver:
 
 acerhdf:
  -  Replace HTTP links with HTTPS ones
 
 Add new intel_atomisp2_led driver:
  - Add new intel_atomisp2_led driver
 
 apple-gmux:
  -  Replace HTTP links with HTTPS ones
 
 asus-nb-wmi:
  -  Drop duplicate DMI quirk structures
  -  add support for ASUS ROG Zephyrus G14 and G15
 
 asus-wmi:
  -  allow BAT1 battery name
 
 dell-wmi:
  -  add new dmi mapping for keycode 0xffff
  -  add new keymap type 0x0012
  -  add new backlight events
 
 intel_cht_int33fe:
  -  Drop double check for ACPI companion device
 
 intel-hid:
  -  Fix return value check in check_acpi_dev()
 
 intel_pmc_core:
  -  fix bound check in pmc_core_mphy_pg_show()
  -  update TGL's LPM0 reg bit map name
 
 intel-vbtn:
  -  Fix return value check in check_acpi_dev()
 
 ISST:
  -  drop a duplicated word in isst_if.h
  -  Add new PCI device ids
 
 pcengines-apuv2:
  -  revert wiring up simswitch GPIO as LED
 
 platform/mellanox:
  -  Introduce string_upper() and string_lower() helpers
  -  Add string_upper() and string_lower() tests
  -  Extend FAN platform data description
  -  Add more definitions for system attributes
  -  Add new attribute for mlxreg-io sysfs interfaces
  -  Add presence register field for FAN devices
  -  Add support for complex attributes
  -  mlxreg-io: Add support for complex attributes
  -  mlxreg-hotplug: Add environmental data to uevent
  -  mlxreg-hotplug: Use capability register for attribute creation
  -  mlxreg-hotplug: Modify module license
 
 system76-acpi:
  -  Fix brightness_set schedule while atomic
 
 thinkpad_acpi:
  -  Make some symbols static
  -  add documentation for battery charge control
  -  use standard charge control attribute names
  -  remove unused defines
  -  Replace HTTP links with HTTPS ones
  -  not loading brightness_init when _BCL invalid
  -  lap or desk mode interface
  -  Revert "Use strndup_user() in dispatch_proc_write()"
 
 tools/power/x86/intel-speed-select:
  -  Update version for v5.9
  -  Add retries for mail box commands
  -  Add option to delay mbox commands
  -  Ignore -o option processing on error
  -  Change path for caching topology info
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Merge tag 'platform-drivers-x86-v5.9-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - ASUS WMI driver honors BAT1 name of the battery (quite a few new
   laptops are using it)

 - Dell WMI driver supports new key codes and backlight events

 - ThinkPad ACPI driver now may use standard charge threshold interface,
   it also has been updated to provide Laptop or Desktop mode to the
   user

 - Intel Speed Select Technology gained support on Sapphire Rapids
   platform

 - Regular update of Speed Select Technology tools

 - Mellanox has been updated to support complex attributes

 - PMC core driver has been fixed to show correct names for LPM0
   register

 - HTTP links were replaced by HTTPS ones where it applies

 - Miscellaneous fixes and cleanups here and there

* tag 'platform-drivers-x86-v5.9-1' of git://git.infradead.org/linux-platform-drivers-x86: (42 commits)
  platform/x86: asus-nb-wmi: Drop duplicate DMI quirk structures
  platform/x86: thinkpad_acpi: Make some symbols static
  platform/x86: thinkpad_acpi: add documentation for battery charge control
  platform/x86: thinkpad_acpi: use standard charge control attribute names
  platform/x86: thinkpad_acpi: remove unused defines
  platform/x86: ISST: drop a duplicated word in isst_if.h
  tools/power/x86/intel-speed-select: Update version for v5.9
  tools/power/x86/intel-speed-select: Add retries for mail box commands
  tools/power/x86/intel-speed-select: Add option to delay mbox commands
  tools/power/x86/intel-speed-select: Ignore -o option processing on error
  tools/power/x86/intel-speed-select: Change path for caching topology info
  platform/x86: acerhdf: Replace HTTP links with HTTPS ones
  platform/x86: apple-gmux: Replace HTTP links with HTTPS ones
  platform/x86: pcengines-apuv2: revert wiring up simswitch GPIO as LED
  platform/x86: mlx-platform: Extend FAN platform data description
  platform_data/mlxreg: Add presence register field for FAN devices
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/mellanox: mlxreg-io: Add support for complex attributes
  platform/x86: mlx-platform: Add more definitions for system attributes
  platform_data/mlxreg: Add support for complex attributes
  ...
 2020-08-03 18:02:53 -07:00
Linus Torvalds
e53bc3ff99 Boris is on vacation and he asked us to send you the pending RAS bits: 
- Print the PPIN field on CPUs that fill them out
  - Fix an MCE injection bug
  - Simplify a kzalloc in dev_mcelog_init_device()
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'ras-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RAS updates from Ingo Molnar:
 "Boris is on vacation and he asked us to send you the pending RAS bits:

   - Print the PPIN field on CPUs that fill them out

   - Fix an MCE injection bug

   - Simplify a kzalloc in dev_mcelog_init_device()"

* tag 'ras-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce, EDAC/mce_amd: Print PPIN in machine check records
  x86/mce/dev-mcelog: Use struct_size() helper in kzalloc()
  x86/mce/inject: Fix a wrong assignment of i_mce.status
 2020-08-03 17:42:23 -07:00
Linus Torvalds
a92ad11fb2 A single commit which sets the X86_FEATURE_TSC_KNOWN_FREQ flag for Xen guests, 
to avoid recalibration.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-timers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 timer update from Ingo Molnar:
 "Set the X86_FEATURE_TSC_KNOWN_FREQ flag for Xen guests, to avoid
  recalibration"

* tag 'x86-timers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/xen/time: Set the X86_FEATURE_TSC_KNOWN_FREQ flag in xen_tsc_khz()
 2020-08-03 17:41:06 -07:00
Linus Torvalds
5183a617ec The biggest change is the removal of SGI UV1 support, which allowed the 
removal of the legacy EFI old_mmap code as well.
 
 This removes quite a bunch of old code & quirks.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-platform-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform updates from Ingo Molnar:
 "The biggest change is the removal of SGI UV1 support, which allowed
  the removal of the legacy EFI old_mmap code as well.

  This removes quite a bunch of old code & quirks"

* tag 'x86-platform-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Remove unused EFI_UV1_MEMMAP code
  x86/platform/uv: Remove uv bios and efi code related to EFI_UV1_MEMMAP
  x86/efi: Remove references to no-longer-used efi_have_uv1_memmap()
  x86/efi: Delete SGI UV1 detection.
  x86/platform/uv: Remove efi=old_map command line option
  x86/platform/uv: Remove vestigial mention of UV1 platform from bios header
  x86/platform/uv: Remove support for UV1 platform from uv
  x86/platform/uv: Remove support for uv1 platform from uv_hub
  x86/platform/uv: Remove support for UV1 platform from uv_bau
  x86/platform/uv: Remove support for UV1 platform from uv_mmrs
  x86/platform/uv: Remove support for UV1 platform from x2apic_uv_x
  x86/platform/uv: Remove support for UV1 platform from uv_tlb
  x86/platform/uv: Remove support for UV1 platform from uv_time
 2020-08-03 17:38:43 -07:00
Linus Torvalds
e96ec8cf9c The biggest change is to not sync the vmalloc and ioremap ranges for x86-64 anymore. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mmm update from Ingo Molnar:
 "The biggest change is to not sync the vmalloc and ioremap ranges for
  x86-64 anymore"

* tag 'x86-mm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/64: Make sync_global_pgds() static
  x86/mm/64: Do not sync vmalloc/ioremap mappings
  x86/mm: Pre-allocate P4D/PUD pages for vmalloc area
 2020-08-03 17:25:42 -07:00
Linus Torvalds
c813e8c9df Filter MSR writes from user-space by default, and print a syslog entry if 
they happen outside the allowed set of MSRs, which is a single one for now,
 MSR_IA32_ENERGY_PERF_BIAS.
 
 The plan is to eventually disable MSR writes by default (they can still be
 enabled via allow_writes=on).
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-misc-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 MSR filtering from Ingo Molnar:
 "Filter MSR writes from user-space by default, and print a syslog entry
  if they happen outside the allowed set of MSRs, which is a single one
  for now, MSR_IA32_ENERGY_PERF_BIAS.

  The plan is to eventually disable MSR writes by default (they can
  still be enabled via allow_writes=on)"

* tag 'x86-misc-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/msr: Filter MSR writes
 2020-08-03 17:23:49 -07:00
Linus Torvalds
69094c2032 A single commit that removes the microcode loader's FW_LOADER coupling. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-microcode-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode update from Ingo Molnar:
 "Remove the microcode loader's FW_LOADER coupling"

* tag 'x86-microcode-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Do not select FW_LOADER
 2020-08-03 17:22:13 -07:00
Linus Torvalds
0a897743ac A single commit that adds the /sys/kernel/debug/selftest_helpers/test_fpu FPU self-test. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-fpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 FPU selftest from Ingo Molnar:
 "Add the /sys/kernel/debug/selftest_helpers/test_fpu FPU self-test"

* tag 'x86-fpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests/fpu: Add an FPU selftest
 2020-08-03 17:21:10 -07:00
Linus Torvalds
335ad94c21 Misc changes: 
- Prepare for Intel's new SERIALIZE instruction
  - Enable split-lock debugging on more CPUs
  - Add more Intel CPU models
  - Optimize stack canary initialization a bit
  - Simplify the Spectre logic a bit
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Ingo Molar:

 - prepare for Intel's new SERIALIZE instruction

 - enable split-lock debugging on more CPUs

 - add more Intel CPU models

 - optimize stack canary initialization a bit

 - simplify the Spectre logic a bit

* tag 'x86-cpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Refactor sync_core() for readability
  x86/cpu: Relocate sync_core() to sync_core.h
  x86/cpufeatures: Add enumeration for SERIALIZE instruction
  x86/split_lock: Enable the split lock feature on Sapphire Rapids and Alder Lake CPUs
  x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family
  x86/stackprotector: Pre-initialize canary for secondary CPUs
  x86/speculation: Merge one test in spectre_v2_user_select_mitigation()
 2020-08-03 17:08:02 -07:00
Linus Torvalds
4ee4810315 Improve x86 debuggability: print registers with the same log level as the backtrace. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 debug fixlets from Ingo Molnar:
 "Improve x86 debuggability: print registers with the same log level as
  the backtrace"

* tag 'x86-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/dumpstack: Show registers dump with trace's log level
  x86/dumpstack: Add log_lvl to __show_regs()
  x86/dumpstack: Add log_lvl to show_iret_regs()
 2020-08-03 17:00:00 -07:00
Linus Torvalds
37e88224c0 Misc cleanups all around the place. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cleanups-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups all around the place"

* tag 'x86-cleanups-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ioperm: Initialize pointer bitmap with NULL rather than 0
  x86: uv: uv_hub.h: Delete duplicated word
  x86: cmpxchg_32.h: Delete duplicated word
  x86: bootparam.h: Delete duplicated word
  x86/mm: Remove the unused mk_kernel_pgd() #define
  x86/tsc: Remove unused "US_SCALE" and "NS_SCALE" leftover macros
  x86/ioapic: Remove unused "IOAPIC_AUTO" define
  x86/mm: Drop unused MAX_PHYSADDR_BITS
  x86/msr: Move the F15h MSRs where they belong
  x86/idt: Make idt_descr static
  initrd: Remove erroneous comment
  x86/mm/32: Fix -Wmissing prototypes warnings for init.c
  cpu/speculation: Add prototype for cpu_show_srbds()
  x86/mm: Fix -Wmissing-prototypes warnings for arch/x86/mm/init.c
  x86/asm: Unify __ASSEMBLY__ blocks
  x86/cpufeatures: Mark two free bits in word 3
  x86/msr: Lift AMD family 0x15 power-specific MSRs
 2020-08-03 16:53:28 -07:00
Linus Torvalds
1ff9b20b47 Misc changes: refresh defconfigs and simplify the boot image link stage. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-build-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 build updates from Ingo Molnar:
 "Misc changes: refresh defconfigs and simplify the boot image link
  stage"

* tag 'x86-build-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/defconfigs: Refresh defconfig files
  x86/build: Move max-page-size option to LDFLAGS_vmlinux
  x86/defconfigs: Remove CONFIG_CRYPTO_AES_586 from i386_defconfig
 2020-08-03 16:51:34 -07:00
Linus Torvalds
c0dfadfed8 The main change in this cycle was to add support for ZSTD-compressed 
kernel and initrd images.
 
 ZSTD has a very fast decompressor, yet it compresses better than gzip.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-boot-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot updates from Ingo Molnar:
 "The main change in this cycle was to add support for ZSTD-compressed
  kernel and initrd images.

  ZSTD has a very fast decompressor, yet it compresses better than gzip"

* tag 'x86-boot-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation: dontdiff: Add zstd compressed files
  .gitignore: Add ZSTD-compressed files
  x86: Add support for ZSTD compressed kernel
  x86: Bump ZO_z_extra_bytes margin for zstd
  usr: Add support for zstd compressed initramfs
  init: Add support for zstd compressed kernel
  lib: Add zstd support to decompress
  lib: Prepare zstd for preboot environment, improve performance
 2020-08-03 16:03:23 -07:00
Linus Torvalds
ba77c568f3 A couple of changes, concentrated into the percpu code, to enable 
Clang support on i386 kernels too.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-asm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 asm updates from Ingo Molnar:
 "A couple of changes, concentrated into the percpu code, to enable
  Clang support on i386 kernels too"

[ And cleans up the macros to generate percpu ops a lot too  - Linus ]

* tag 'x86-asm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/uaccess: Make __get_user_size() Clang compliant on 32-bit
  x86/percpu: Remove unused PER_CPU() macro
  x86/percpu: Clean up percpu_stable_op()
  x86/percpu: Clean up percpu_cmpxchg_op()
  x86/percpu: Clean up percpu_xchg_op()
  x86/percpu: Clean up percpu_add_return_op()
  x86/percpu: Remove "e" constraint from XADD
  x86/percpu: Clean up percpu_add_op()
  x86/percpu: Clean up percpu_from_op()
  x86/percpu: Clean up percpu_to_op()
  x86/percpu: Introduce size abstraction macros
 2020-08-03 15:58:06 -07:00
Linus Torvalds
97c6f57dc9 A single commit that improves the alternatives patching syslog debug output. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-alternatives-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86/alternatives update from Ingo Molnar:
 "A single commit that improves the alternatives patching syslog debug
  output"

* tag 'x86-alternatives-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/alternatives: Add pr_fmt() to debug macros
 2020-08-03 15:56:37 -07:00
Linus Torvalds
e4cbce4d13 The main changes in this cycle were: 
- Improve uclamp performance by using a static key for the fast path
 
  - Add the "sched_util_clamp_min_rt_default" sysctl, to optimize for
    better power efficiency of RT tasks on battery powered devices.
    (The default is to maximize performance & reduce RT latencies.)
 
  - Improve utime and stime tracking accuracy, which had a fixed boundary
    of error, which created larger and larger relative errors as the values
    become larger. This is now replaced with more precise arithmetics,
    using the new mul_u64_u64_div_u64() helper in math64.h.
 
  - Improve the deadline scheduler, such as making it capacity aware
 
  - Improve frequency-invariant scheduling
 
  - Misc cleanups in energy/power aware scheduling
 
  - Add sched_update_nr_running tracepoint to track changes to nr_running
 
  - Documentation additions and updates
 
  - Misc cleanups and smaller fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:

 - Improve uclamp performance by using a static key for the fast path

 - Add the "sched_util_clamp_min_rt_default" sysctl, to optimize for
   better power efficiency of RT tasks on battery powered devices.
   (The default is to maximize performance & reduce RT latencies.)

 - Improve utime and stime tracking accuracy, which had a fixed boundary
   of error, which created larger and larger relative errors as the
   values become larger. This is now replaced with more precise
   arithmetics, using the new mul_u64_u64_div_u64() helper in math64.h.

 - Improve the deadline scheduler, such as making it capacity aware

 - Improve frequency-invariant scheduling

 - Misc cleanups in energy/power aware scheduling

 - Add sched_update_nr_running tracepoint to track changes to nr_running

 - Documentation additions and updates

 - Misc cleanups and smaller fixes

* tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  sched/doc: Factorize bits between sched-energy.rst & sched-capacity.rst
  sched/doc: Document capacity aware scheduling
  sched: Document arch_scale_*_capacity()
  arm, arm64: Fix selection of CONFIG_SCHED_THERMAL_PRESSURE
  Documentation/sysctl: Document uclamp sysctl knobs
  sched/uclamp: Add a new sysctl to control RT default boost value
  sched/uclamp: Fix a deadlock when enabling uclamp static key
  sched: Remove duplicated tick_nohz_full_enabled() check
  sched: Fix a typo in a comment
  sched/uclamp: Remove unnecessary mutex_init()
  arm, arm64: Select CONFIG_SCHED_THERMAL_PRESSURE
  sched: Cleanup SCHED_THERMAL_PRESSURE kconfig entry
  arch_topology, sched/core: Cleanup thermal pressure definition
  trace/events/sched.h: fix duplicated word
  linux/sched/mm.h: drop duplicated words in comments
  smp: Fix a potential usage of stale nr_cpus
  sched/fair: update_pick_idlest() Select group with lowest group_util when idle_cpus are equal
  sched: nohz: stop passing around unused "ticks" parameter.
  sched: Better document ttwu()
  sched: Add a tracepoint to track rq->nr_running
  ...
 2020-08-03 14:58:38 -07:00
Linus Torvalds
b34133fec8 - HW support updates: 
- Add uncore support for Intel Comet Lake
 
    - Add RAPL support for Hygon Fam18h
 
    - Add Intel "IIO stack to PMON mapping" support on Skylake-SP CPUs,
      which enumerates per device performance counters via sysfs and enables
      the perf stat --iiostat functionality
 
    - Add support for Intel "Architectural LBRs", which generalized the model
      specific LBR hardware tracing feature into a model-independent, architected
      performance monitoring feature. Usage is mostly seamless to tooling, as the
      pre-existing LBR features are kept, but there's a couple of advantages
      under the hood, such as faster context-switching, faster LBR reads,
      cleaner exposure of LBR features to guest kernels, etc.
 
      ( Since architectural LBRs are supported via XSAVE, there's related
        changes to the x86 FPU code as well. )
 
  - ftrace/perf updates: Add support to add a text poke event to record changes
                         to kernel text (i.e. self-modifying code) in order to
                         support tracers like Intel PT decoding through
                         jump labels, kprobes and ftrace trampolines.
 
  - Misc cleanups, smaller fixes.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf event updates from Ingo Molnar:
 "HW support updates:

   - Add uncore support for Intel Comet Lake

   - Add RAPL support for Hygon Fam18h

   - Add Intel "IIO stack to PMON mapping" support on Skylake-SP CPUs,
     which enumerates per device performance counters via sysfs and
     enables the perf stat --iiostat functionality

   - Add support for Intel "Architectural LBRs", which generalized the
     model specific LBR hardware tracing feature into a
     model-independent, architected performance monitoring feature.

     Usage is mostly seamless to tooling, as the pre-existing LBR
     features are kept, but there's a couple of advantages under the
     hood, such as faster context-switching, faster LBR reads, cleaner
     exposure of LBR features to guest kernels, etc.

     ( Since architectural LBRs are supported via XSAVE, there's related
       changes to the x86 FPU code as well. )

  ftrace/perf updates:

   - Add support to add a text poke event to record changes to kernel
     text (i.e. self-modifying code) in order to support tracers like
     Intel PT decoding through jump labels, kprobes and ftrace
     trampolines.

  Misc cleanups, smaller fixes..."

* tag 'perf-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits)
  perf/x86/rapl: Add Hygon Fam18h RAPL support
  kprobes: Remove unnecessary module_mutex locking from kprobe_optimizer()
  x86/perf: Fix a typo
  perf: <linux/perf_event.h>: drop a duplicated word
  perf/x86/intel/lbr: Support XSAVES for arch LBR read
  perf/x86/intel/lbr: Support XSAVES/XRSTORS for LBR context switch
  x86/fpu/xstate: Add helpers for LBR dynamic supervisor feature
  x86/fpu/xstate: Support dynamic supervisor feature for LBR
  x86/fpu: Use proper mask to replace full instruction mask
  perf/x86: Remove task_ctx_size
  perf/x86/intel/lbr: Create kmem_cache for the LBR context data
  perf/core: Use kmem_cache to allocate the PMU specific data
  perf/core: Factor out functions to allocate/free the task_ctx_data
  perf/x86/intel/lbr: Support Architectural LBR
  perf/x86/intel/lbr: Factor out intel_pmu_store_lbr
  perf/x86/intel/lbr: Factor out rdlbr_all() and wrlbr_all()
  perf/x86/intel/lbr: Mark the {rd,wr}lbr_{to,from} wrappers __always_inline
  perf/x86/intel/lbr: Unify the stored format of LBR information
  perf/x86/intel/lbr: Support LBR_CTL
  perf/x86: Expose CPUID enumeration bits for arch LBR
  ...
 2020-08-03 14:51:09 -07:00
Linus Torvalds
9dee86896c Misc updates: 
- Add support for non-rela relocations, in preparation to merge 'recordmcount'
   functionality into objtool.
 
 - Fix assumption that broke under --ffunction-sections (LTO) builds.
 
 - Misc cleanups.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:

 - Add support for non-rela relocations, in preparation to merge
   'recordmcount' functionality into objtool

 - Fix assumption that broke under --ffunction-sections (LTO) builds

 - Misc cleanups

* tag 'objtool-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Add support for relocations without addends
  objtool: Rename rela to reloc
  objtool: Use sh_info to find the base for .rela sections
  objtool: Do not assume order of parent/child functions
 2020-08-03 14:45:33 -07:00
Linus Torvalds
9ba19ccd2d These were the main changes in this cycle: 
- LKMM updates: mostly documentation changes, but also some new litmus tests for atomic ops.
 
  - KCSAN updates: the most important change is that GCC 11 now has all fixes in place
                   to support KCSAN, so GCC support can be enabled again. Also more annotations.
 
  - futex updates: minor cleanups and simplifications
 
  - seqlock updates: merge preparatory changes/cleanups for the 'associated locks' facilities.
 
  - lockdep updates:
     - simplify IRQ trace event handling
     - add various new debug checks
     - simplify header dependencies, split out <linux/lockdep_types.h>, decouple
       lockdep from other low level headers some more
     - fix NMI handling
 
  - misc cleanups and smaller fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:

 - LKMM updates: mostly documentation changes, but also some new litmus
   tests for atomic ops.

 - KCSAN updates: the most important change is that GCC 11 now has all
   fixes in place to support KCSAN, so GCC support can be enabled again.
   Also more annotations.

 - futex updates: minor cleanups and simplifications

 - seqlock updates: merge preparatory changes/cleanups for the
   'associated locks' facilities.

 - lockdep updates:
    - simplify IRQ trace event handling
    - add various new debug checks
    - simplify header dependencies, split out <linux/lockdep_types.h>,
      decouple lockdep from other low level headers some more
    - fix NMI handling

 - misc cleanups and smaller fixes

* tag 'locking-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
  kcsan: Improve IRQ state trace reporting
  lockdep: Refactor IRQ trace events fields into struct
  seqlock: lockdep assert non-preemptibility on seqcount_t write
  lockdep: Add preemption enabled/disabled assertion APIs
  seqlock: Implement raw_seqcount_begin() in terms of raw_read_seqcount()
  seqlock: Add kernel-doc for seqcount_t and seqlock_t APIs
  seqlock: Reorder seqcount_t and seqlock_t API definitions
  seqlock: seqcount_t latch: End read sections with read_seqcount_retry()
  seqlock: Properly format kernel-doc code samples
  Documentation: locking: Describe seqlock design and usage
  locking/qspinlock: Do not include atomic.h from qspinlock_types.h
  locking/atomic: Move ATOMIC_INIT into linux/types.h
  lockdep: Move list.h inclusion into lockdep.h
  locking/lockdep: Fix TRACE_IRQFLAGS vs. NMIs
  futex: Remove unused or redundant includes
  futex: Consistently use fshared as boolean
  futex: Remove needless goto's
  futex: Remove put_futex_key()
  rwsem: fix commas in initialisation
  docs: locking: Replace HTTP links with HTTPS ones
  ...
 2020-08-03 14:39:35 -07:00
Linus Torvalds
8f0cb6660a These are the latest RCU bits for v5.9: 
- kfree_rcu updates
   - RCU tasks updates
   - Read-side scalability tests
   - SRCU updates
   - Torture-test updates
   - Documentation updates
   - Miscellaneous fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-rcu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:

 - kfree_rcu updates

 - RCU tasks updates

 - Read-side scalability tests

 - SRCU updates

 - Torture-test updates

 - Documentation updates

 - Miscellaneous fixes

* tag 'core-rcu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (109 commits)
  torture: Remove obsolete "cd $KVM"
  torture: Avoid duplicate specification of qemu command
  torture: Dump ftrace at shutdown only if requested
  torture: Add kvm-tranform.sh script for qemu-cmd files
  torture: Add more tracing crib notes to kvm.sh
  torture: Improve diagnostic for KCSAN-incapable compilers
  torture: Correctly summarize build-only runs
  torture: Pass --kmake-arg to all make invocations
  rcutorture: Check for unwatched readers
  torture: Abstract out console-log error detection
  torture: Add a stop-run capability
  torture: Create qemu-cmd in --buildonly runs
  rcu/rcutorture: Replace 0 with false
  torture: Add --allcpus argument to the kvm.sh script
  torture: Remove whitespace from identify_qemu_vcpus output
  rcutorture: NULL rcu_torture_current earlier in cleanup code
  rcutorture: Handle non-statistic bang-string error messages
  torture: Set configfile variable to current scenario
  rcutorture: Add races with task-exit processing
  locktorture: Use true and false to assign to bool variables
  ...
 2020-08-03 14:31:33 -07:00
Linus Torvalds
5ece08178d A single commit that separates out the instrumentation_begin()/end() bits from compiler.h. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-headers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull header cleanup from Ingo Molnar:
 "Separate out the instrumentation_begin()/end() bits from compiler.h"

* tag 'core-headers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  compiler.h: Move instrumentation_begin()/end() to new <linux/instrumentation.h> header
 2020-08-03 14:25:40 -07:00
Linus Torvalds
c8e69391d0 A single commit which simplifies a debugfs attribute definition. 
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-debugobjects-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull debugobjects cleanup from Ingo Molnar:
 "A single commit which simplifies a debugfs attribute definition"

* tag 'core-debugobjects-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  debugobjects: Convert to DEFINE_SHOW_ATTRIBUTE
 2020-08-03 14:24:18 -07:00
Linus Torvalds
3b4b84b2ea Fix a recent IRQ affinities regression, add in a missing debugfs printout 
that helps the debugging of IRQ affinity logic bugs, and fix a memory leak.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Ingo Molnar:
 "Fix a recent IRQ affinities regression, add in a missing debugfs
  printout that helps the debugging of IRQ affinity logic bugs, and fix
  a memory leak"

* tag 'irq-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/debugfs: Add missing irqchip flags
  genirq/affinity: Make affinity setting if activated opt-in
  irqdomain/treewide: Free firmware node after domain removal
 2020-08-03 14:21:52 -07:00
Linus Torvalds
145ff1ec09 arm64 and cross-arch updates for 5.9: 
- Removal of the tremendously unpopular read_barrier_depends() barrier,
   which is a NOP on all architectures apart from Alpha, in favour of
   allowing architectures to override READ_ONCE() and do whatever dance
   they need to do to ensure address dependencies provide LOAD ->
   LOAD/STORE ordering. This work also offers a potential solution if
   compilers are shown to convert LOAD -> LOAD address dependencies into
   control dependencies (e.g. under LTO), as weakly ordered architectures
   will effectively be able to upgrade READ_ONCE() to smp_load_acquire().
   The latter case is not used yet, but will be discussed further at LPC.
 
 - Make the MSI/IOMMU input/output ID translation PCI agnostic, augment
   the MSI/IOMMU ACPI/OF ID mapping APIs to accept an input ID
   bus-specific parameter and apply the resulting changes to the device
   ID space provided by the Freescale FSL bus.
 
 - arm64 support for TLBI range operations and translation table level
   hints (part of the ARMv8.4 architecture version).
 
 - Time namespace support for arm64.
 
 - Export the virtual and physical address sizes in vmcoreinfo for
   makedumpfile and crash utilities.
 
 - CPU feature handling cleanups and checks for programmer errors
   (overlapping bit-fields).
 
 - ACPI updates for arm64: disallow AML accesses to EFI code regions and
   kernel memory.
 
 - perf updates for arm64.
 
 - Miscellaneous fixes and cleanups, most notably PLT counting
   optimisation for module loading, recordmcount fix to ignore
   relocations other than R_AARCH64_CALL26, CMA areas reserved for
   gigantic pages on 16K and 64K configurations.
 
 - Trivial typos, duplicate words.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 and cross-arch updates from Catalin Marinas:
 "Here's a slightly wider-spread set of updates for 5.9.

  Going outside the usual arch/arm64/ area is the removal of
  read_barrier_depends() series from Will and the MSI/IOMMU ID
  translation series from Lorenzo.

  The notable arm64 updates include ARMv8.4 TLBI range operations and
  translation level hint, time namespace support, and perf.

  Summary:

   - Removal of the tremendously unpopular read_barrier_depends()
     barrier, which is a NOP on all architectures apart from Alpha, in
     favour of allowing architectures to override READ_ONCE() and do
     whatever dance they need to do to ensure address dependencies
     provide LOAD -> LOAD/STORE ordering.

     This work also offers a potential solution if compilers are shown
     to convert LOAD -> LOAD address dependencies into control
     dependencies (e.g. under LTO), as weakly ordered architectures will
     effectively be able to upgrade READ_ONCE() to smp_load_acquire().
     The latter case is not used yet, but will be discussed further at
     LPC.

   - Make the MSI/IOMMU input/output ID translation PCI agnostic,
     augment the MSI/IOMMU ACPI/OF ID mapping APIs to accept an input ID
     bus-specific parameter and apply the resulting changes to the
     device ID space provided by the Freescale FSL bus.

   - arm64 support for TLBI range operations and translation table level
     hints (part of the ARMv8.4 architecture version).

   - Time namespace support for arm64.

   - Export the virtual and physical address sizes in vmcoreinfo for
     makedumpfile and crash utilities.

   - CPU feature handling cleanups and checks for programmer errors
     (overlapping bit-fields).

   - ACPI updates for arm64: disallow AML accesses to EFI code regions
     and kernel memory.

   - perf updates for arm64.

   - Miscellaneous fixes and cleanups, most notably PLT counting
     optimisation for module loading, recordmcount fix to ignore
     relocations other than R_AARCH64_CALL26, CMA areas reserved for
     gigantic pages on 16K and 64K configurations.

   - Trivial typos, duplicate words"

Link: http://lkml.kernel.org/r/20200710165203.31284-1-will@kernel.org
Link: http://lkml.kernel.org/r/20200619082013.13661-1-lorenzo.pieralisi@arm.com

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (82 commits)
  arm64: use IRQ_STACK_SIZE instead of THREAD_SIZE for irq stack
  arm64/mm: save memory access in check_and_switch_context() fast switch path
  arm64: sigcontext.h: delete duplicated word
  arm64: ptrace.h: delete duplicated word
  arm64: pgtable-hwdef.h: delete duplicated words
  bus: fsl-mc: Add ACPI support for fsl-mc
  bus/fsl-mc: Refactor the MSI domain creation in the DPRC driver
  of/irq: Make of_msi_map_rid() PCI bus agnostic
  of/irq: make of_msi_map_get_device_domain() bus agnostic
  dt-bindings: arm: fsl: Add msi-map device-tree binding for fsl-mc bus
  of/device: Add input id to of_dma_configure()
  of/iommu: Make of_map_rid() PCI agnostic
  ACPI/IORT: Add an input ID to acpi_dma_configure()
  ACPI/IORT: Remove useless PCI bus walk
  ACPI/IORT: Make iort_msi_map_rid() PCI agnostic
  ACPI/IORT: Make iort_get_device_domain IRQ domain agnostic
  ACPI/IORT: Make iort_match_node_callback walk the ACPI namespace for NC
  arm64: enable time namespace support
  arm64/vdso: Restrict splitting VVAR VMA
  arm64/vdso: Handle faults on timens page
  ...
 2020-08-03 14:11:08 -07:00
Linus Torvalds
8c4e1c027a m68k updates for v5.9 
- Several Kbuild improvements,
   - Several Mac fixes,
   - Minor cleanups and fixes,
   - Defconfig updates.
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Merge tag 'm68k-for-v5.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - several Kbuild improvements

 - several Mac fixes

 - minor cleanups and fixes

 - defconfig updates

* tag 'm68k-for-v5.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: defconfig: Update defconfigs for v5.8-rc3
  m68k: Use CLEAN_FILES to clean up files
  m68k: mac: Improve IOP debug messages
  m68k: mac: Don't send uninitialized data in IOP message reply
  m68k: mac: Fix IOP status/control register writes
  m68k: mac: Don't send IOP message until channel is idle
  m68k: atari: Annotate dummy read in ROM port IO code as __maybe_unused
  m68k: Use sizeof_field() helper
  m68k: Pass -D options to KBUILD_CPPFLAGS instead of KBUILD_{A,C}FLAGS
  m68k: Optimize cc-option calls for cpuflags-y
  m68k: sun3: Descend to prom from arch/m68k/sun3
  m68k: Add arch/m68k/Kbuild
 2020-08-03 14:05:50 -07:00
Linus Torvalds
05119217a9 Remove unicore32 support 
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Merge tag 'rm-unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux

Pull unicore32 removal from Mike Rapoport:
 "Remove unicore32 support.

  The unicore32 port do not seem maintained for a long time now, there
  is no upstream toolchain that can create unicore32 binaries and all
  the links to prebuilt toolchains for unicore32 are dead. Even
  compilers that were available are not supported by the kernel anymore.

  Guenter Roeck says:
    "I have stopped building unicore32 images since v4.19 since there is
     no available compiler that is still supported by the kernel. I am
     surprised that support for it has not been removed from the kernel"

  However, it's worth pointing out two things:

   - Guan Xuetao is still listed as maintainer and asked for the port to
     be kept around the last time Arnd suggested removing it two years
     ago. He promised that there would be compiler sources (presumably
     llvm), but has not made those available since.

   - https://github.com/gxt has patches to linux-4.9 and qemu-2.7, both
     released in 2016, with patches dated early 2019. These patches
     mainly restore a syscall ABI that was never part of mainline Linux
     but apparently used in production. qemu-2.8 removed support for
     that ABI and newer kernels (4.19+) can no longer be built with the
     old toolchain, so apparently there will not be any future updates
     to that git tree"

* tag 'rm-unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux:
  MAINTAINERS: remove "PKUNITY SOC DRIVERS" entry
  rtc: remove fb-puv3  driver
  video: fbdev: remove fb-puv3  driver
  pwm: remove pwm-puv3  driver
  input: i8042: remove support for 8042-unicore32io
  i2c/buses: remove i2c-puv3  driver
  cpufreq: remove unicore32 driver
  arch: remove unicore32 port
 2020-08-03 14:00:16 -07:00
Linus Torvalds
45365a06aa - Add support for function error injection. 
- Add support for custom exception handlers, as required by BPF_PROBE_MEM.
 
 - Add support for BPF_PROBE_MEM.
 
 - Add trace events for idle enter / exit for the s390 specific idle
   implementation.
 
 - Remove unused zcore memmmap device.
 
 - Remove unused "raw view" from s390 debug feature.
 
 - AP bus + zcrypt device driver code refactoring.
 
 - Provide cex4 cca sysfs attributes for cex3 for zcrypt device driver.
 
 - Expose only minimal interface to walk physmem for mm/memblock. This
   is a common code change and it has been agreed on with Mike Rapoport
   and Andrew Morton that this can go upstream via the s390 tree.
 
 - Rework of the s390 vmem/vmmemap code to allow for future memory hot
   remove.
 
 - Get rid of FORCE_MAX_ZONEORDER to finally allow for order-10
   allocations again, instead of only order-8 allocations.
 
 - Various small improvements and fixes.
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Merge tag 's390-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add support for function error injection.

 - Add support for custom exception handlers, as required by
   BPF_PROBE_MEM.

 - Add support for BPF_PROBE_MEM.

 - Add trace events for idle enter / exit for the s390 specific idle
   implementation.

 - Remove unused zcore memmmap device.

 - Remove unused "raw view" from s390 debug feature.

 - AP bus + zcrypt device driver code refactoring.

 - Provide cex4 cca sysfs attributes for cex3 for zcrypt device driver.

 - Expose only minimal interface to walk physmem for mm/memblock. This
   is a common code change and it has been agreed on with Mike Rapoport
   and Andrew Morton that this can go upstream via the s390 tree.

 - Rework of the s390 vmem/vmmemap code to allow for future memory hot
   remove.

 - Get rid of FORCE_MAX_ZONEORDER to finally allow for order-10
   allocations again, instead of only order-8 allocations.

 - Various small improvements and fixes.

* tag 's390-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (48 commits)
  s390/vmemmap: coding style updates
  s390/vmemmap: avoid memset(PAGE_UNUSED) when adding consecutive sections
  s390/vmemmap: remember unused sub-pmd ranges
  s390/vmemmap: fallback to PTEs if mapping large PMD fails
  s390/vmem: cleanup empty page tables
  s390/vmemmap: take the vmem_mutex when populating/freeing
  s390/vmemmap: cleanup when vmemmap_populate() fails
  s390/vmemmap: extend modify_pagetable() to handle vmemmap
  s390/vmem: consolidate vmem_add_range() and vmem_remove_range()
  s390/vmem: rename vmem_add_mem() to vmem_add_range()
  s390: enable HAVE_FUNCTION_ERROR_INJECTION
  s390/pci: clarify comment in s390_mmio_read/write
  s390/time: improve comparison for tod steering
  s390/time: select CLOCKSOURCE_VALIDATE_LAST_CYCLE
  s390/time: use CLOCKSOURCE_MASK
  s390/bpf: implement BPF_PROBE_MEM
  s390/kernel: expand exception table logic to allow new handling options
  s390/kernel: unify EX_TABLE* implementations
  s390/mm: allow order 10 allocations
  s390/mm: avoid trimming to MAX_ORDER
  ...
 2020-08-03 13:58:10 -07:00
Linus Torvalds
cdc8fcb499 for-5.9/io_uring-20200802 
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Merge tag 'for-5.9/io_uring-20200802' of git://git.kernel.dk/linux-block

Pull io_uring updates from Jens Axboe:
 "Lots of cleanups in here, hardening the code and/or making it easier
  to read and fixing bugs, but a core feature/change too adding support
  for real async buffered reads. With the latter in place, we just need
  buffered write async support and we're done relying on kthreads for
  the fast path. In detail:

   - Cleanup how memory accounting is done on ring setup/free (Bijan)

   - sq array offset calculation fixup (Dmitry)

   - Consistently handle blocking off O_DIRECT submission path (me)

   - Support proper async buffered reads, instead of relying on kthread
     offload for that. This uses the page waitqueue to drive retries
     from task_work, like we handle poll based retry. (me)

   - IO completion optimizations (me)

   - Fix race with accounting and ring fd install (me)

   - Support EPOLLEXCLUSIVE (Jiufei)

   - Get rid of the io_kiocb unionizing, made possible by shrinking
     other bits (Pavel)

   - Completion side cleanups (Pavel)

   - Cleanup REQ_F_ flags handling, and kill off many of them (Pavel)

   - Request environment grabbing cleanups (Pavel)

   - File and socket read/write cleanups (Pavel)

   - Improve kiocb_set_rw_flags() (Pavel)

   - Tons of fixes and cleanups (Pavel)

   - IORING_SQ_NEED_WAKEUP clear fix (Xiaoguang)"

* tag 'for-5.9/io_uring-20200802' of git://git.kernel.dk/linux-block: (127 commits)
  io_uring: flip if handling after io_setup_async_rw
  fs: optimise kiocb_set_rw_flags()
  io_uring: don't touch 'ctx' after installing file descriptor
  io_uring: get rid of atomic FAA for cq_timeouts
  io_uring: consolidate *_check_overflow accounting
  io_uring: fix stalled deferred requests
  io_uring: fix racy overflow count reporting
  io_uring: deduplicate __io_complete_rw()
  io_uring: de-unionise io_kiocb
  io-wq: update hash bits
  io_uring: fix missing io_queue_linked_timeout()
  io_uring: mark ->work uninitialised after cleanup
  io_uring: deduplicate io_grab_files() calls
  io_uring: don't do opcode prep twice
  io_uring: clear IORING_SQ_NEED_WAKEUP after executing task works
  io_uring: batch put_task_struct()
  tasks: add put_task_struct_many()
  io_uring: return locked and pinned page accounting
  io_uring: don't miscount pinned memory
  io_uring: don't open-code recv kbuf managment
  ...
 2020-08-03 13:01:22 -07:00
Linus Torvalds
382625d0d4 for-5.9/block-20200802 
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Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block

Pull core block updates from Jens Axboe:
 "Good amount of cleanups and tech debt removals in here, and as a
  result, the diffstat shows a nice net reduction in code.

   - Softirq completion cleanups (Christoph)

   - Stop using ->queuedata (Christoph)

   - Cleanup bd claiming (Christoph)

   - Use check_events, moving away from the legacy media change
     (Christoph)

   - Use inode i_blkbits consistently (Christoph)

   - Remove old unused writeback congestion bits (Christoph)

   - Cleanup/unify submission path (Christoph)

   - Use bio_uninit consistently, instead of bio_disassociate_blkg
     (Christoph)

   - sbitmap cleared bits handling (John)

   - Request merging blktrace event addition (Jan)

   - sysfs add/remove race fixes (Luis)

   - blk-mq tag fixes/optimizations (Ming)

   - Duplicate words in comments (Randy)

   - Flush deferral cleanup (Yufen)

   - IO context locking/retry fixes (John)

   - struct_size() usage (Gustavo)

   - blk-iocost fixes (Chengming)

   - blk-cgroup IO stats fixes (Boris)

   - Various little fixes"

* tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block: (135 commits)
  block: blk-timeout: delete duplicated word
  block: blk-mq-sched: delete duplicated word
  block: blk-mq: delete duplicated word
  block: genhd: delete duplicated words
  block: elevator: delete duplicated word and fix typos
  block: bio: delete duplicated words
  block: bfq-iosched: fix duplicated word
  iocost_monitor: start from the oldest usage index
  iocost: Fix check condition of iocg abs_vdebt
  block: Remove callback typedefs for blk_mq_ops
  block: Use non _rcu version of list functions for tag_set_list
  blk-cgroup: show global disk stats in root cgroup io.stat
  blk-cgroup: make iostat functions visible to stat printing
  block: improve discard bio alignment in __blkdev_issue_discard()
  block: change REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL to be odd numbers
  block: defer flush request no matter whether we have elevator
  block: make blk_timeout_init() static
  block: remove retry loop in ioc_release_fn()
  block: remove unnecessary ioc nested locking
  block: integrate bd_start_claiming into __blkdev_get
  ...
 2020-08-03 11:57:03 -07:00
Linus Torvalds
99f6cf61f1 Merge branch 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux 
Pull mtd fix from Richard Weinberger.

* 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: properly check all write ioctls for permissions
 2020-08-03 11:46:22 -07:00
Linus Torvalds
f9bf352224 userfaultfd: simplify fault handling 
Instead of waiting in a loop for the userfaultfd condition to become
true, just wait once and return VM_FAULT_RETRY.

We've already dropped the mmap lock, we know we can't really
successfully handle the fault at this point and the caller will have to
retry anyway.  So there's no point in making the wait any more
complicated than it needs to be - just schedule away.

And once you don't have that complexity with explicit looping, you can
also just lose all the 'userfaultfd_signal_pending()' complexity,
because once we've set the correct process sleeping state, and don't
loop, the act of scheduling itself will be checking if there are any
pending signals before going to sleep.

We can also drop the VM_FAULT_MAJOR games, since we'll be treating all
retried faults as major soon anyway (series to regularize and share more
of fault handling across architectures in a separate series by Peter Xu,
and in the meantime we won't worry about the possible minor - I'll be
here all week, try the veal - accounting difference).

Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2020-08-03 11:25:16 -07:00
Linus Torvalds
3208167a86 File locking fix for v5.9. 
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Merge tag 'filelock-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

Pull file locking fix from Jeff Layton:
 "Just a single, one-line patch to fix an inefficiency in the posix
  locking code that can lead to it doing more wakeups than necessary"

* tag 'filelock-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  locks: add locks_move_blocks in posix_lock_inode
 2020-08-03 10:46:41 -07:00
Linus Torvalds
ab5c60b79a Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 
Pull crypto updates from Herbert Xu:
 "API:
   - Add support for allocating transforms on a specific NUMA Node
   - Introduce the flag CRYPTO_ALG_ALLOCATES_MEMORY for storage users

  Algorithms:
   - Drop PMULL based ghash on arm64
   - Fixes for building with clang on x86
   - Add sha256 helper that does the digest in one go
   - Add SP800-56A rev 3 validation checks to dh

  Drivers:
   - Permit users to specify NUMA node in hisilicon/zip
   - Add support for i.MX6 in imx-rngc
   - Add sa2ul crypto driver
   - Add BA431 hwrng driver
   - Add Ingenic JZ4780 and X1000 hwrng driver
   - Spread IRQ affinity in inside-secure and marvell/cesa"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (157 commits)
  crypto: sa2ul - Fix inconsistent IS_ERR and PTR_ERR
  hwrng: core - remove redundant initialization of variable ret
  crypto: x86/curve25519 - Remove unused carry variables
  crypto: ingenic - Add hardware RNG for Ingenic JZ4780 and X1000
  dt-bindings: RNG: Add Ingenic RNG bindings.
  crypto: caam/qi2 - add module alias
  crypto: caam - add more RNG hw error codes
  crypto: caam/jr - remove incorrect reference to caam_jr_register()
  crypto: caam - silence .setkey in case of bad key length
  crypto: caam/qi2 - create ahash shared descriptors only once
  crypto: caam/qi2 - fix error reporting for caam_hash_alloc
  crypto: caam - remove deadcode on 32-bit platforms
  crypto: ccp - use generic power management
  crypto: xts - Replace memcpy() invocation with simple assignment
  crypto: marvell/cesa - irq balance
  crypto: inside-secure - irq balance
  crypto: ecc - SP800-56A rev 3 local public key validation
  crypto: dh - SP800-56A rev 3 local public key validation
  crypto: dh - check validity of Z before export
  lib/mpi: Add mpi_sub_ui()
  ...
 2020-08-03 10:40:14 -07:00