Commit 40a9012a authored by Olof Johansson's avatar Olof Johansson
Browse files

Merge tag 'cpuidle_psci-v5.5-rc4' of... 

Merge tag 'cpuidle_psci-v5.5-rc4' of git://git.linaro.org/people/ulf.hansson/linux-pm into arm/drivers

Initial support for hierarchical CPU arrangement, managed by PSCI and its
corresponding cpuidle driver. This support is based upon using the generic
PM domain, which already supports devices belonging to CPUs.

Finally, these is a DTS patch that enables the hierarchical topology to be
used for the Qcom 410c Dragonboard, which supports the PSCI OS-initiated
mode.

* tag 'cpuidle_psci-v5.5-rc4' of git://git.linaro.org/people/ulf.hansson/linux-pm: (611 commits)
  arm64: dts: Convert to the hierarchical CPU topology layout for MSM8916
  cpuidle: psci: Add support for PM domains by using genpd
  PM / Domains: Introduce a genpd OF helper that removes a subdomain
  cpuidle: psci: Support CPU hotplug for the hierarchical model
  cpuidle: psci: Manage runtime PM in the idle path
  cpuidle: psci: Prepare to use OS initiated suspend mode via PM domains
  cpuidle: psci: Attach CPU devices to their PM domains
  cpuidle: psci: Add a helper to attach a CPU to its PM domain
  cpuidle: psci: Support hierarchical CPU idle states
  cpuidle: psci: Simplify OF parsing of CPU idle state nodes
  cpuidle: dt: Support hierarchical CPU idle states
  of: base: Add of_get_cpu_state_node() to get idle states for a CPU node
  firmware: psci: Export functions to manage the OSI mode
  dt: psci: Update DT bindings to support hierarchical PSCI states
  cpuidle: psci: Align psci_power_state count with idle state count
  Linux 5.5-rc4
  locks: print unsigned ino in /proc/locks
  riscv: export flush_icache_all to modules
  riscv: reject invalid syscalls below -1
  riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
  ...

Link: https://lore.kernel.org/r/20200102160820.3572-1-ulf.hansson@linaro.org


Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents 1bee7aaa e3713155

.mailmap

+2 −0
Original line number Diff line number Diff line
@@ -152,6 +152,7 @@ Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@web.de> 
Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>

Li Yang <leoyang.li@nxp.com> <leo@zh-kernel.org>

Li Yang <leoyang.li@nxp.com> <leoli@freescale.com>

Lukasz Luba <lukasz.luba@arm.com> <l.luba@partner.samsung.com>

Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>

Marc Zyngier <maz@kernel.org> <marc.zyngier@arm.com>

Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
@@ -265,6 +266,7 @@ Vinod Koul <vkoul@kernel.org> <vkoul@infradead.org> 
Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>

Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>

Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>

Vivien Didelot <vivien.didelot@gmail.com> <vivien.didelot@savoirfairelinux.com>

Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com>

Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>

Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>

Documentation/ABI/testing/sysfs-platform-mellanox-bootctl

+5 −5
Original line number Diff line number Diff line 
What:		/sys/bus/platform/devices/MLNXBF04:00/driver/lifecycle_state

What:		/sys/bus/platform/devices/MLNXBF04:00/lifecycle_state

Date:		Oct 2019

KernelVersion:	5.5

Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -10,7 +10,7 @@ Description: 
		  GA Non-Secured - Non-Secure chip and not able to change state

		  RMA - Return Merchandise Authorization



What:		/sys/bus/platform/devices/MLNXBF04:00/driver/post_reset_wdog

What:		/sys/bus/platform/devices/MLNXBF04:00/post_reset_wdog

Date:		Oct 2019

KernelVersion:	5.5

Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -19,7 +19,7 @@ Description: 
		to reboot the chip and recover it to the old state if the new

		boot partition fails.



What:		/sys/bus/platform/devices/MLNXBF04:00/driver/reset_action

What:		/sys/bus/platform/devices/MLNXBF04:00/reset_action

Date:		Oct 2019

KernelVersion:	5.5

Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -30,7 +30,7 @@ Description: 
		  emmc - boot from the onchip eMMC

		  emmc_legacy - boot from the onchip eMMC in legacy (slow) mode



What:		/sys/bus/platform/devices/MLNXBF04:00/driver/second_reset_action

What:		/sys/bus/platform/devices/MLNXBF04:00/second_reset_action

Date:		Oct 2019

KernelVersion:	5.5

Contact:	"Liming Sun <lsun@mellanox.com>"
@@ -44,7 +44,7 @@ Description: 
		  swap_emmc - swap the primary / secondary boot partition

		  none - cancel the action



What:		/sys/bus/platform/devices/MLNXBF04:00/driver/secure_boot_fuse_state

What:		/sys/bus/platform/devices/MLNXBF04:00/secure_boot_fuse_state

Date:		Oct 2019

KernelVersion:	5.5

Contact:	"Liming Sun <lsun@mellanox.com>"

Documentation/admin-guide/ext4.rst

+11 −8
Original line number Diff line number Diff line
@@ -181,14 +181,17 @@ When mounting an ext4 filesystem, the following option are accepted: 
        system after its metadata has been committed to the journal.



  commit=nrsec	(*)

        Ext4 can be told to sync all its data and metadata every 'nrsec'

        seconds. The default value is 5 seconds.  This means that if you lose

        your power, you will lose as much as the latest 5 seconds of work (your

        filesystem will not be damaged though, thanks to the journaling).  This

        default value (or any low value) will hurt performance, but it's good

        for data-safety.  Setting it to 0 will have the same effect as leaving

        it at the default (5 seconds).  Setting it to very large values will

        improve performance.

        This setting limits the maximum age of the running transaction to

        'nrsec' seconds.  The default value is 5 seconds.  This means that if

        you lose your power, you will lose as much as the latest 5 seconds of

        metadata changes (your filesystem will not be damaged though, thanks

        to the journaling). This default value (or any low value) will hurt

        performance, but it's good for data-safety.  Setting it to 0 will have

        the same effect as leaving it at the default (5 seconds).  Setting it

        to very large values will improve performance.  Note that due to

        delayed allocation even older data can be lost on power failure since

        writeback of those data begins only after time set in

        /proc/sys/vm/dirty_expire_centisecs.



  barrier=<0|1(*)>, barrier(*), nobarrier

        This enables/disables the use of write barriers in the jbd code.

Documentation/dev-tools/kselftest.rst

+4 −4
Original line number Diff line number Diff line
@@ -203,12 +203,12 @@ Test Module 
Kselftest tests the kernel from userspace.  Sometimes things need

testing from within the kernel, one method of doing this is to create a

test module.  We can tie the module into the kselftest framework by

using a shell script test runner.  ``kselftest_module.sh`` is designed

using a shell script test runner.  ``kselftest/module.sh`` is designed

to facilitate this process.  There is also a header file provided to

assist writing kernel modules that are for use with kselftest:



- ``tools/testing/kselftest/kselftest_module.h``

- ``tools/testing/kselftest/kselftest_module.sh``

- ``tools/testing/kselftest/kselftest/module.sh``



How to use

----------
@@ -247,7 +247,7 @@ A bare bones test module might look like this: 


   #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt



   #include "../tools/testing/selftests/kselftest_module.h"

   #include "../tools/testing/selftests/kselftest/module.h"



   KSTM_MODULE_GLOBALS();
@@ -276,7 +276,7 @@ Example test script 


    #!/bin/bash

    # SPDX-License-Identifier: GPL-2.0+

    $(dirname $0)/../kselftest_module.sh "foo" test_foo

    $(dirname $0)/../kselftest/module.sh "foo" test_foo





Test Harness

Documentation/dev-tools/kunit/index.rst

+1 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel 


	start

	usage

	kunit-tool

	api/index

	faq