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David S. Miller
cabf06e5a2 wireless-drivers-next patches for v5.9 
Second set of patches for v5.9. mt76 has most of patches this time.
 Otherwise it's just smaller fixes and cleanups to other drivers.
 
 There was a major conflict in mt76 driver between wireless-drivers and
 wireless-drivers-next. I solved that by merging the former to the
 latter.
 
 Major changes:
 
 rtw88
 
 * add support for ieee80211_ops::change_interface
 
 * add support for enabling and disabling beacon
 
 * add debugfs file for testing h2c
 
 mt76
 
 * ARP filter offload for 7663
 
 * runtime power management for 7663
 
 * testmode support for mfg calibration
 
 * support for more channels
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Merge tag 'wireless-drivers-next-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.9

Second set of patches for v5.9. mt76 has most of patches this time.
Otherwise it's just smaller fixes and cleanups to other drivers.

There was a major conflict in mt76 driver between wireless-drivers and
wireless-drivers-next. I solved that by merging the former to the
latter.

Major changes:

rtw88

* add support for ieee80211_ops::change_interface

* add support for enabling and disabling beacon

* add debugfs file for testing h2c

mt76

* ARP filter offload for 7663

* runtime power management for 7663

* testmode support for mfg calibration

* support for more channels
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-04 12:57:02 -07:00
Joe Perches
93f4ddd64b via-velocity: Use more typical logging styles 
Use netdev_<level> in place of VELOCITY_PRT.
Use pr_<level> in place of printk(KERN_<LEVEL>.

Miscellanea:

o Add pr_fmt to prefix pr_<level> output with "via-velocity: "
o Remove now unused functions and macros
o Realign some logging lines
o Remove devname where pr_<level> is also used

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-04 12:54:49 -07:00
David S. Miller
a79da6953e Merge branch 'hinic-mailbox-channel-enhancement' 
Luo bin says:

====================
hinic: mailbox channel enhancement

add support to generate mailbox random id for VF to ensure that
the mailbox message from VF is valid and PF should check whether
the cmd from VF is supported before passing it to hw.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-04 12:17:06 -07:00
Luo bin
c8c29ec3c5 hinic: add check for mailbox msg from VF 
PF should check whether the cmd from VF is supported and its content
is right before passing it to hw.

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-04 12:17:06 -07:00
Luo bin
088c5f0d1a hinic: add generating mailbox random index support 
add support to generate mailbox random id of VF to ensure that
mailbox messages PF received are from the correct VF.

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-04 12:17:06 -07:00
Petr Mladek
57e60db3bc Merge branch 'for-5.9-console-return-codes' into for-linus 2020-08-04 16:27:43 +02:00
Rolf Eike Beer
e2693ec1e0 parisc: make the log level string for register dumps const 
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2020-08-04 16:22:53 +02:00
Kalle Valo
2cfd71f1a4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git 
mt76 driver had major conflicts within mt7615 directory. To make it easier for
every merge wireless-drivers to wireless-drivers-next and solve those
conflicts.
 2020-08-04 14:02:54 +03:00
Huacai Chen
82ad03db05 MAINTAINERS: Update KVM/MIPS maintainers 
James Hogan has become inactive for a long time and leaves KVM for MIPS
orphan. I'm working on KVM/Loongson and attempt to make it upstream both
in kernel and QEMU, while Aleksandar Markovic is already a maintainer of
QEMU/MIPS. We are both interested in QEMU/KVM/MIPS, and we have already
made some contributions in kernel and QEMU. If possible, we want to take
the KVM/MIPS maintainership.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
 2020-08-04 09:39:30 +02:00
Huacai Chen
70b838292b MIPS: Update default config file for Loongson-3 
Update Loongson-3's default config file:
1, Adjust NR_CPUS to 16;
2, Add a built-in cmdline "ieee754=relaxed";
3, Enable MSA, CGROUPS, NAMESPACES, KVM, and XFS support;
4, Enable all possible virtio drivers to support KVM Host/Guest;
5, Enable all necessary netfilter modules to support virtual network;

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
 2020-08-04 09:39:29 +02:00
Huacai Chen
39c1485c8b MIPS: KVM: Add kvm guest support for Loongson-3 
Loongson-3 KVM guest is based on virtio, it use liointc as its interrupt
controller and use GPEX as the pci controller.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
 2020-08-04 09:39:29 +02:00
Huacai Chen
a84a334f03 dt-bindings: mips: Document Loongson kvm guest board 
Document loongson64v-4core-virtio, a virtio based kvm guest board for
Loongson-3.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
 2020-08-04 09:33:58 +02:00
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
David S. Miller
da7955405f sfc: Fix build with CONFIG_RFS_ACCEL disabled. 
drivers/net/ethernet/sfc/ef100_nic.c:835:3: error: 'const struct efx_nic_type' has no member named 'filter_rfs_expire_one'
     835 |  .filter_rfs_expire_one = efx_mcdi_filter_rfs_expire_one,
         |   ^~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100_nic.c:835:27: error: initialization of 'void (*)(struct efx_nic *, u32)' {aka 'void (*)(struct efx_nic *, unsigned int)'} from incompatible pointer type 'bool (*)(struct efx_nic *, u32,  unsigned int)' {aka '_Bool (*)(struct efx_nic *, unsigned int,  unsigned int)'} [-Werror=incompatible-pointer-types]
     835 |  .filter_rfs_expire_one = efx_mcdi_filter_rfs_expire_one,
         |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:29:39 -07:00
David S. Miller
2e7199bd77 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 
Daniel Borkmann says:

====================
pull-request: bpf-next 2020-08-04

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

We've added 73 non-merge commits during the last 9 day(s) which contain
a total of 135 files changed, 4603 insertions(+), 1013 deletions(-).

The main changes are:

1) Implement bpf_link support for XDP. Also add LINK_DETACH operation for the BPF
   syscall allowing processes with BPF link FD to force-detach, from Andrii Nakryiko.

2) Add BPF iterator for map elements and to iterate all BPF programs for efficient
   in-kernel inspection, from Yonghong Song and Alexei Starovoitov.

3) Separate bpf_get_{stack,stackid}() helpers for perf events in BPF to avoid
   unwinder errors, from Song Liu.

4) Allow cgroup local storage map to be shared between programs on the same
   cgroup. Also extend BPF selftests with coverage, from YiFei Zhu.

5) Add BPF exception tables to ARM64 JIT in order to be able to JIT BPF_PROBE_MEM
   load instructions, from Jean-Philippe Brucker.

6) Follow-up fixes on BPF socket lookup in combination with reuseport group
   handling. Also add related BPF selftests, from Jakub Sitnicki.

7) Allow to use socket storage in BPF_PROG_TYPE_CGROUP_SOCK-typed programs for
   socket create/release as well as bind functions, from Stanislav Fomichev.

8) Fix an info leak in xsk_getsockopt() when retrieving XDP stats via old struct
   xdp_statistics, from Peilin Ye.

9) Fix PT_REGS_RC{,_CORE}() macros in libbpf for MIPS arch, from Jerry Crunchtime.

10) Extend BPF kernel test infra with skb->family and skb->{local,remote}_ip{4,6}
    fields and allow user space to specify skb->dev via ifindex, from Dmitry Yakunin.

11) Fix a bpftool segfault due to missing program type name and make it more robust
    to prevent them in future gaps, from Quentin Monnet.

12) Consolidate cgroup helper functions across selftests and fix a v6 localhost
    resolver issue, from John Fastabend.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:27:40 -07:00
David S. Miller
76769c38b4 mlx5-updates-2020-08-03 
This patchset introduces some updates to mlx5 driver.
 
 1) Jakub converts mlx5 to use the new udp tunnel infrastructure.
    Starting with a hack to allow drivers to request a static configuration
    of the default vxlan port, and then a patch that converts mlx5.
 
 2) Parav implements change_carrier ndo for VF eswitch representors,
    to speedup link state control of representors netdevices.
 
 3) Alex Vesker, makes a simple update to software steering to fix an issue
    with push vlan action sequence
 
 4) Leon removes a redundant dump stack on error flow.
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Merge tag 'mlx5-updates-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2020-08-03

This patchset introduces some updates to mlx5 driver.

1) Jakub converts mlx5 to use the new udp tunnel infrastructure.
   Starting with a hack to allow drivers to request a static configuration
   of the default vxlan port, and then a patch that converts mlx5.

2) Parav implements change_carrier ndo for VF eswitch representors,
   to speedup link state control of representors netdevices.

3) Alex Vesker, makes a simple update to software steering to fix an issue
   with push vlan action sequence

4) Leon removes a redundant dump stack on error flow.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:24:30 -07:00
David S. Miller
c4b83061dc Merge branch 'sfc-driver-for-EF100-family-NICs-part-2' 
Edward Cree says:

====================
sfc: driver for EF100 family NICs, part 2

This series implements the data path and various other functionality
 for Xilinx/Solarflare EF100 NICs.

Changed from v2:
 * Improved error handling of design params (patch #3)
 * Removed 'inline' from .c file in patch #4
 * Don't report common stats to ethtool -S (patch #8)

Changed from v1:
 * Fixed build errors on CONFIG_RFS_ACCEL=n (patch #5) and 32-bit
   (patch #8)
 * Dropped patch #10 (ethtool ops) as it's buggy and will need a
   bigger rework to fix.
====================

Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:55 -07:00
Edward Cree
d61592a112 sfc_ef100: add nic-type for VFs, and bind to them 
We don't yet have a .sriov_configure() to create them, though.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:55 -07:00
Edward Cree
ef2c57b956 sfc_ef100: read pf_index at probe time 
We'll need it later, for VF representors.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:55 -07:00
Edward Cree
43c3df0d56 sfc_ef100: functions for selftests 
Self-tests for event and interrupt reception and NVRAM.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:55 -07:00
Edward Cree
b593b6f1b4 sfc_ef100: statistics gathering 
MAC stats work much the same as on EF10, with a periodic DMA to a region
 specified via an MCDI.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:55 -07:00
Edward Cree
b780feac36 sfc_ef100: plumb in fini_dmaq 
Bring down the TX and RX queues at ifdown, so that we can then fini the
 EVQs (otherwise the MC would return EBUSY because they're still in use).

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:55 -07:00
Edward Cree
8e57daf706 sfc_ef100: RX path for EF100 
Includes RSS spreading.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:54 -07:00
Edward Cree
a9dc3d5612 sfc_ef100: RX filter table management and related gubbins 
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:54 -07:00
Edward Cree
d19a537218 sfc_ef100: TX path for EF100 NICs 
Includes checksum offload and TSO, so declare those in our netdev features.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:54 -07:00
Edward Cree
adcfc3482f sfc_ef100: read Design Parameters at probe time 
Several parts of the EF100 architecture are parameterised (to allow
 varying capabilities on FPGAs according to resource constraints), and
 these parameters are exposed to the driver through a TLV-encoded
 region of the BAR.
For the most part we either don't care about these values at all or
 just need to sanity-check them against the driver's assumptions, but
 there are a number of TSO limits which we record so that we will be
 able to check against them in the TX path when handling GSO skbs.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:54 -07:00
Edward Cree
4496363bec sfc_ef100: fail the probe if NIC uses unsol_ev credits 
In the future, EF100 is planned to have a credit-based scheme for
 handling unsolicited events, which drivers will need to use in order
 to function correctly.  However, current EF100 hardware does not yet
 generate unsolicited events and the credit scheme has not yet been
 implemented in firmware.  To prevent compatibility problems later if
 the current driver is used with future firmware which does implement
 it, we check for the corresponding capability flag (which that
 future firmware will set), and if found, we refuse to probe.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:54 -07:00
Edward Cree
8e737145e8 sfc_ef100: check firmware version at start-of-day 
Early in EF100 development there was a different format of event
 descriptor; if the NIC is somehow running the very old firmware
 which will use that format, fail the probe.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:22:54 -07:00
Jiafei Pan
215602a8d2 enetc: use napi_schedule to be compatible with PREEMPT_RT 
The driver calls napi_schedule_irqoff() from a context where, in RT,
hardirqs are not disabled, since the IRQ handler is force-threaded.

In the call path of this function, __raise_softirq_irqoff() is modifying
its per-CPU mask of pending softirqs that must be processed, using
or_softirq_pending(). The or_softirq_pending() function is not atomic,
but since interrupts are supposed to be disabled, nobody should be
preempting it, and the operation should be safe.

Nonetheless, when running with hardirqs on, as in the PREEMPT_RT case,
it isn't safe, and the pending softirqs mask can get corrupted,
resulting in softirqs being lost and never processed.

To have common code that works with PREEMPT_RT and with mainline Linux,
we can use plain napi_schedule() instead. The difference is that
napi_schedule() (via __napi_schedule) also calls local_irq_save, which
disables hardirqs if they aren't already. But, since they already are
disabled in non-RT, this means that in practice we don't see any
measurable difference in throughput or latency with this patch.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:21:30 -07:00
Jiafei Pan
6c33ae1ad5 dpaa2-eth: use napi_schedule to be compatible with PREEMPT_RT 
The driver calls napi_schedule_irqoff() from a context where, in RT,
hardirqs are not disabled, since the IRQ handler is force-threaded.

In the call path of this function, __raise_softirq_irqoff() is modifying
its per-CPU mask of pending softirqs that must be processed, using
or_softirq_pending(). The or_softirq_pending() function is not atomic,
but since interrupts are supposed to be disabled, nobody should be
preempting it, and the operation should be safe.

Nonetheless, when running with hardirqs on, as in the PREEMPT_RT case,
it isn't safe, and the pending softirqs mask can get corrupted,
resulting in softirqs being lost and never processed.

To have common code that works with PREEMPT_RT and with mainline Linux,
we can use plain napi_schedule() instead. The difference is that
napi_schedule() (via __napi_schedule) also calls local_irq_save, which
disables hardirqs if they aren't already. But, since they already are
disabled in non-RT, this means that in practice we don't see any
measurable difference in throughput or latency with this patch.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:21:30 -07:00
David S. Miller
d8f375ea46 Merge branch 'net-dsa-loop-Preparatory-changes-for-802-1Q-data-path' 
net: dsa: loop: Preparatory changes for 802.1Q data path
Florian Fainelli says:

====================
These patches are all meant to help pave the way for a 802.1Q data path
added to the mockup driver, making it more useful than just testing for
configuration. Sending those out now since there is no real need to
wait.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:19:23 -07:00
Florian Fainelli
947b6ef9f7 net: dsa: loop: Set correct number of ports 
We only support DSA_LOOP_NUM_PORTS in the switch, do not tell the DSA
core to allocate up to DSA_MAX_PORTS which is nearly the double (6 vs.
11).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:19:23 -07:00
Florian Fainelli
c99194eded net: dsa: loop: Wire-up MTU callbacks 
For now we simply store the port MTU into a per-port member.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:19:23 -07:00
Florian Fainelli
6c84a58997 net: dsa: loop: Move data structures to header 
In preparation for adding support for a mockup data path, move the
driver data structures to include/linux/dsa/loop.h such that we can
share them between net/dsa/ and drivers/net/dsa/ later on.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:19:23 -07:00
Florian Fainelli
916a8d168e net: dsa: loop: Support 4K VLANs 
Allocate a 4K array of VLANs instead of limiting ourselves to just 5
which is arbitrary.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:19:22 -07:00
Florian Fainelli
81d4e8e073 net: dsa: loop: PVID should be per-port 
The PVID should be per-port, this is a preliminary change to support a
802.1Q data path in the driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:19:22 -07:00
Rahul Lakkireddy
59b328cf56 cxgb4: add TC-MATCHALL IPv6 support 
Matching IPv6 traffic require allocating their own individual slots
in TCAM. So, fetch additional slots to insert IPv6 rules. Also, fetch
the cumulative stats of all the slots occupied by the Matchall rule.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:17:08 -07:00
Vladimir Oltean
af9fdd2bf8 net: dsa: sja1105: poll for extts events from a timer 
The current poll interval is enough to ensure that rising and falling
edge events are not lost for a 1 PPS signal with 50% duty cycle.

But when we deliver the events to user space, it will try to infer if
they were corresponding to a rising or to a falling edge (the kernel
driver doesn't know that either). User space will try to make that
inference based on the time at which the PPS master had emitted the
pulse (i.e. if it's a .0 time, it's rising edge, if it's .5 time, it's
falling edge).

But there is no in-kernel API for retrieving the precise timestamp
corresponding to a PPS master (aka perout) pulse. So user space has to
guess even that. It will read the PTP time on the PPS master right after
we've delivered the extts event, and declare that the PPS master time
was just the closest integer second, based on 2 thresholds (lower than
.25, or higher than .75, and ignore anything else).

Except that, if we poll for extts events (and our hardware doesn't
really help us, by not providing an interrupt), then there is a risk
that the poll period (and therefore the time at which the event is
delivered) might confuse user space.

Because we are always scheduling the next extts poll at
SJA1105_EXTTS_INTERVAL "from now" (that's the only thing that the
schedule_delayed_work() API gives us), it means that the start time of
the next delayed workqueue will always be shifted to the right a little
bit (shifted with the SPI access duration of this workqueue run).
In turn, because user space sees extts events that are non-periodic
compared to the PPS master's time, this means that it might start making
wrong guesses about rising/falling edge.

To understand the effect, here is the output of ts2phc currently. Notice
the 'src' timestamps of the 'SKIP extts' events, and how they have a
large wander. They keep increasing until the upper limit for the ignore
threshold (.75 seconds), after which the application starts ignoring the
_other_ edge.

ts2phc[26.624]: /dev/ptp3 SKIP extts index 0 at 21.449898912 src 21.657784518
ts2phc[27.133]: adding tstamp 21.949894240 to clock /dev/ptp3
ts2phc[27.133]: adding tstamp 22.000000000 to clock /dev/ptp1
ts2phc[27.133]: /dev/ptp3 offset        640 s2 freq   +5112
ts2phc[27.636]: /dev/ptp3 SKIP extts index 0 at 22.449889360 src 22.669398022
ts2phc[28.140]: adding tstamp 22.949884376 to clock /dev/ptp3
ts2phc[28.140]: adding tstamp 23.000000000 to clock /dev/ptp1
ts2phc[28.140]: /dev/ptp3 offset         96 s2 freq   +4760
ts2phc[28.644]: /dev/ptp3 SKIP extts index 0 at 23.449879504 src 23.677420422
ts2phc[29.153]: adding tstamp 23.949874704 to clock /dev/ptp3
ts2phc[29.153]: adding tstamp 24.000000000 to clock /dev/ptp1
ts2phc[29.153]: /dev/ptp3 offset       -264 s2 freq   +4429
ts2phc[29.656]: /dev/ptp3 SKIP extts index 0 at 24.449870008 src 24.689407238
ts2phc[30.160]: adding tstamp 24.949865376 to clock /dev/ptp3
ts2phc[30.160]: adding tstamp 25.000000000 to clock /dev/ptp1
ts2phc[30.160]: /dev/ptp3 offset       -280 s2 freq   +4334
ts2phc[30.664]: /dev/ptp3 SKIP extts index 0 at 25.449860760 src 25.697449926
ts2phc[31.168]: adding tstamp 25.949856176 to clock /dev/ptp3
ts2phc[31.168]: adding tstamp 26.000000000 to clock /dev/ptp1
ts2phc[31.168]: /dev/ptp3 offset       -176 s2 freq   +4354
ts2phc[31.672]: /dev/ptp3 SKIP extts index 0 at 26.449851584 src 26.705433606
ts2phc[32.180]: adding tstamp 26.949846992 to clock /dev/ptp3
ts2phc[32.180]: adding tstamp 27.000000000 to clock /dev/ptp1
ts2phc[32.180]: /dev/ptp3 offset        -80 s2 freq   +4397
ts2phc[32.684]: /dev/ptp3 SKIP extts index 0 at 27.449842384 src 27.717415110
ts2phc[33.192]: adding tstamp 27.949837768 to clock /dev/ptp3
ts2phc[33.192]: adding tstamp 28.000000000 to clock /dev/ptp1
ts2phc[33.192]: /dev/ptp3 offset          0 s2 freq   +4453
ts2phc[33.696]: /dev/ptp3 SKIP extts index 0 at 28.449833128 src 28.729412902
ts2phc[34.200]: adding tstamp 28.949828472 to clock /dev/ptp3
ts2phc[34.200]: adding tstamp 29.000000000 to clock /dev/ptp1
ts2phc[34.200]: /dev/ptp3 offset          8 s2 freq   +4461
ts2phc[34.704]: /dev/ptp3 SKIP extts index 0 at 29.449823816 src 29.737416038
ts2phc[35.208]: adding tstamp 29.949819152 to clock /dev/ptp3
ts2phc[35.208]: adding tstamp 30.000000000 to clock /dev/ptp1
ts2phc[35.208]: /dev/ptp3 offset         -8 s2 freq   +4447
ts2phc[35.712]: /dev/ptp3 SKIP extts index 0 at 30.449814496 src 30.745554982
ts2phc[36.216]: adding tstamp 30.949809840 to clock /dev/ptp3
ts2phc[36.216]: adding tstamp 31.000000000 to clock /dev/ptp1
ts2phc[36.216]: /dev/ptp3 offset         -8 s2 freq   +4445
ts2phc[36.468]: /dev/ptp3 SKIP extts index 0 at 31.449805184 src 31.501109446
ts2phc[36.972]: adding tstamp 31.949800536 to clock /dev/ptp3
ts2phc[36.972]: adding tstamp 32.000000000 to clock /dev/ptp1
ts2phc[36.972]: /dev/ptp3 offset         -8 s2 freq   +4442
ts2phc[37.480]: /dev/ptp3 SKIP extts index 0 at 32.449795896 src 32.513320070
ts2phc[37.984]: adding tstamp 32.949791248 to clock /dev/ptp3
ts2phc[37.984]: adding tstamp 33.000000000 to clock /dev/ptp1
ts2phc[37.984]: /dev/ptp3 offset          0 s2 freq   +4448

Fix that by taking the following measures:
- Schedule the poll from a timer. Because we are really scheduling the
  timer periodically, the extts events delivered to user space are
  periodic too, and don't suffer from the "shift-to-the-right" effect.
- Increase the poll period to 6 times a second. This imposes a smaller
  upper bound to the shift that can occur to the delivery time of extts
  events, and makes user space (ts2phc) to always interpret correctly
  which events should be skipped and which shouldn't.
- Move the SPI readout itself to the main PTP kernel thread, instead of
  the generic workqueue. This is because the timer runs in atomic
  context, but is also better than before, because if needed, we can
  chrt & taskset this kernel thread, to ensure it gets enough priority
  under load.

After this patch, one can notice that the wander is greatly reduced, and
that the latencies of one extts poll are not propagated to the next. The
'src' timestamp that is skipped is never larger than .65 seconds (which
means .15 seconds larger than the time at which the real event occurred
at, and .10 seconds smaller than the .75 upper threshold for ignoring
the falling edge):

ts2phc[40.076]: adding tstamp 34.949261296 to clock /dev/ptp3
ts2phc[40.076]: adding tstamp 35.000000000 to clock /dev/ptp1
ts2phc[40.076]: /dev/ptp3 offset         48 s2 freq   +4631
ts2phc[40.568]: /dev/ptp3 SKIP extts index 0 at 35.449256496 src 35.595791078
ts2phc[41.064]: adding tstamp 35.949251744 to clock /dev/ptp3
ts2phc[41.064]: adding tstamp 36.000000000 to clock /dev/ptp1
ts2phc[41.064]: /dev/ptp3 offset       -224 s2 freq   +4374
ts2phc[41.552]: /dev/ptp3 SKIP extts index 0 at 36.449247088 src 36.579825574
ts2phc[42.044]: adding tstamp 36.949242456 to clock /dev/ptp3
ts2phc[42.044]: adding tstamp 37.000000000 to clock /dev/ptp1
ts2phc[42.044]: /dev/ptp3 offset       -240 s2 freq   +4290
ts2phc[42.536]: /dev/ptp3 SKIP extts index 0 at 37.449237848 src 37.563828774
ts2phc[43.028]: adding tstamp 37.949233264 to clock /dev/ptp3
ts2phc[43.028]: adding tstamp 38.000000000 to clock /dev/ptp1
ts2phc[43.028]: /dev/ptp3 offset       -144 s2 freq   +4314
ts2phc[43.520]: /dev/ptp3 SKIP extts index 0 at 38.449228656 src 38.547823238
ts2phc[44.012]: adding tstamp 38.949224048 to clock /dev/ptp3
ts2phc[44.012]: adding tstamp 39.000000000 to clock /dev/ptp1
ts2phc[44.012]: /dev/ptp3 offset        -80 s2 freq   +4335
ts2phc[44.508]: /dev/ptp3 SKIP extts index 0 at 39.449219432 src 39.535846118
ts2phc[44.996]: adding tstamp 39.949214816 to clock /dev/ptp3
ts2phc[44.996]: adding tstamp 40.000000000 to clock /dev/ptp1
ts2phc[44.996]: /dev/ptp3 offset        -32 s2 freq   +4359
ts2phc[45.488]: /dev/ptp3 SKIP extts index 0 at 40.449210192 src 40.515824678
ts2phc[45.980]: adding tstamp 40.949205568 to clock /dev/ptp3
ts2phc[45.980]: adding tstamp 41.000000000 to clock /dev/ptp1
ts2phc[45.980]: /dev/ptp3 offset          8 s2 freq   +4390
ts2phc[46.636]: /dev/ptp3 SKIP extts index 0 at 41.449200928 src 41.664176902
ts2phc[47.132]: adding tstamp 41.949196288 to clock /dev/ptp3
ts2phc[47.132]: adding tstamp 42.000000000 to clock /dev/ptp1
ts2phc[47.132]: /dev/ptp3 offset          0 s2 freq   +4384
ts2phc[47.620]: /dev/ptp3 SKIP extts index 0 at 42.449191656 src 42.648117190
ts2phc[48.112]: adding tstamp 42.949187016 to clock /dev/ptp3
ts2phc[48.112]: adding tstamp 43.000000000 to clock /dev/ptp1
ts2phc[48.112]: /dev/ptp3 offset          0 s2 freq   +4384
ts2phc[48.604]: /dev/ptp3 SKIP extts index 0 at 43.449182384 src 43.632112582
ts2phc[49.100]: adding tstamp 43.949177736 to clock /dev/ptp3
ts2phc[49.100]: adding tstamp 44.000000000 to clock /dev/ptp1
ts2phc[49.100]: /dev/ptp3 offset         -8 s2 freq   +4376
ts2phc[49.588]: /dev/ptp3 SKIP extts index 0 at 44.449173096 src 44.616136774
ts2phc[50.080]: adding tstamp 44.949168464 to clock /dev/ptp3
ts2phc[50.080]: adding tstamp 45.000000000 to clock /dev/ptp1
ts2phc[50.080]: /dev/ptp3 offset          8 s2 freq   +4390
ts2phc[50.572]: /dev/ptp3 SKIP extts index 0 at 45.449163816 src 45.600134662
ts2phc[51.064]: adding tstamp 45.949159160 to clock /dev/ptp3
ts2phc[51.064]: adding tstamp 46.000000000 to clock /dev/ptp1
ts2phc[51.064]: /dev/ptp3 offset         -8 s2 freq   +4376
ts2phc[51.556]: /dev/ptp3 SKIP extts index 0 at 46.449154528 src 46.584588550
ts2phc[52.048]: adding tstamp 46.949149896 to clock /dev/ptp3
ts2phc[52.048]: adding tstamp 47.000000000 to clock /dev/ptp1
ts2phc[52.048]: /dev/ptp3 offset          0 s2 freq   +4382
ts2phc[52.540]: /dev/ptp3 SKIP extts index 0 at 47.449145256 src 47.568132198
ts2phc[53.032]: adding tstamp 47.949140616 to clock /dev/ptp3
ts2phc[53.032]: adding tstamp 48.000000000 to clock /dev/ptp1
ts2phc[53.032]: /dev/ptp3 offset          0 s2 freq   +4382
ts2phc[53.524]: /dev/ptp3 SKIP extts index 0 at 48.449135968 src 48.552121446
ts2phc[54.016]: adding tstamp 48.949131320 to clock /dev/ptp3
ts2phc[54.016]: adding tstamp 49.000000000 to clock /dev/ptp1
ts2phc[54.016]: /dev/ptp3 offset          0 s2 freq   +4382
ts2phc[54.512]: /dev/ptp3 SKIP extts index 0 at 49.449126680 src 49.540147014
ts2phc[55.000]: adding tstamp 49.949122040 to clock /dev/ptp3
ts2phc[55.000]: adding tstamp 50.000000000 to clock /dev/ptp1
ts2phc[55.000]: /dev/ptp3 offset          0 s2 freq   +4382
ts2phc[55.492]: /dev/ptp3 SKIP extts index 0 at 50.449117400 src 50.520119078
ts2phc[55.988]: adding tstamp 50.949112768 to clock /dev/ptp3
ts2phc[55.988]: adding tstamp 51.000000000 to clock /dev/ptp1
ts2phc[55.988]: /dev/ptp3 offset          8 s2 freq   +4390
ts2phc[56.476]: /dev/ptp3 SKIP extts index 0 at 51.449108120 src 51.504175910
ts2phc[57.132]: adding tstamp 51.949103480 to clock /dev/ptp3
ts2phc[57.132]: adding tstamp 52.000000000 to clock /dev/ptp1
ts2phc[57.132]: /dev/ptp3 offset          0 s2 freq   +4384
ts2phc[57.624]: /dev/ptp3 SKIP extts index 0 at 52.449098840 src 52.651833574
ts2phc[58.116]: adding tstamp 52.949094200 to clock /dev/ptp3
ts2phc[58.116]: adding tstamp 53.000000000 to clock /dev/ptp1
ts2phc[58.116]: /dev/ptp3 offset          8 s2 freq   +4392
ts2phc[58.612]: /dev/ptp3 SKIP extts index 0 at 53.449089560 src 53.639826918
ts2phc[59.100]: adding tstamp 53.949084920 to clock /dev/ptp3
ts2phc[59.100]: adding tstamp 54.000000000 to clock /dev/ptp1
ts2phc[59.100]: /dev/ptp3 offset          8 s2 freq   +4394
ts2phc[59.592]: /dev/ptp3 SKIP extts index 0 at 54.449080272 src 54.619842278
ts2phc[60.084]: adding tstamp 54.949075624 to clock /dev/ptp3
ts2phc[60.084]: adding tstamp 55.000000000 to clock /dev/ptp1
ts2phc[60.084]: /dev/ptp3 offset          8 s2 freq   +4397
ts2phc[60.576]: /dev/ptp3 SKIP extts index 0 at 55.449070968 src 55.603885542
ts2phc[61.068]: adding tstamp 55.949066312 to clock /dev/ptp3
ts2phc[61.068]: adding tstamp 56.000000000 to clock /dev/ptp1
ts2phc[61.068]: /dev/ptp3 offset          0 s2 freq   +4391
ts2phc[61.560]: /dev/ptp3 SKIP extts index 0 at 56.449061680 src 56.587885798
ts2phc[62.052]: adding tstamp 56.949057032 to clock /dev/ptp3
ts2phc[62.052]: adding tstamp 57.000000000 to clock /dev/ptp1
ts2phc[62.052]: /dev/ptp3 offset         -8 s2 freq   +4383

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:16:02 -07:00
Paolo Abeni
8555c6bfd5 mptcp: fix bogus sendmsg() return code under pressure 
In case of memory pressure, mptcp_sendmsg() may call
sk_stream_wait_memory() after succesfully xmitting some
bytes. If the latter fails we currently return to the
user-space the error code, ignoring the succeful xmit.

Address the issue always checking for the xmitted bytes
before mptcp_sendmsg() completes.

Fixes: f296234c98 ("mptcp: Add handling of incoming MP_JOIN requests")
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-08-03 18:14:20 -07:00