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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.
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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: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2020-01-08 10:26:26 -08:00
Родитель 1bee7aaa07 e371315568
Коммит 40a9012a3b
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2
.mailmap
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@ -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>

10
Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
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@ -1,4 +1,4 @@
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>"

19
Documentation/admin-guide/ext4.rst
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@ -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.

2
Documentation/admin-guide/xfs.rst
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@ -253,7 +253,7 @@ The following sysctls are available for the XFS filesystem:
pool.
fs.xfs.speculative_prealloc_lifetime
(Units: seconds Min: 1 Default: 300 Max: 86400)
(Units: seconds Min: 1 Default: 300 Max: 86400)
The interval at which the background scanning for inodes
with unused speculative preallocation runs. The scan
removes unused preallocation from clean inodes and releases

8
Documentation/dev-tools/kselftest.rst
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@ -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

1
Documentation/dev-tools/kunit/index.rst
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@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel
start
usage
kunit-tool
api/index
faq

57
Documentation/dev-tools/kunit/kunit-tool.rst Normal file
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@ -0,0 +1,57 @@
.. SPDX-License-Identifier: GPL-2.0
=================
kunit_tool How-To
=================
What is kunit_tool?
===================
kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building
the Linux kernel as UML (`User Mode Linux
<http://user-mode-linux.sourceforge.net/>`_), running KUnit tests, parsing
the test results and displaying them in a user friendly manner.
What is a kunitconfig?
======================
It's just a defconfig that kunit_tool looks for in the base directory.
kunit_tool uses it to generate a .config as you might expect. In addition, it
verifies that the generated .config contains the CONFIG options in the
kunitconfig; the reason it does this is so that it is easy to be sure that a
CONFIG that enables a test actually ends up in the .config.
How do I use kunit_tool?
========================
If a kunitconfig is present at the root directory, all you have to do is:
.. code-block:: bash
./tools/testing/kunit/kunit.py run
However, you most likely want to use it with the following options:
.. code-block:: bash
./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all`
- ``--timeout`` sets a maximum amount of time to allow tests to run.
- ``--jobs`` sets the number of threads to use to build the kernel.
If you just want to use the defconfig that ships with the kernel, you can
append the ``--defconfig`` flag as well:
.. code-block:: bash
./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig
.. note::
This command is particularly helpful for getting started because it
just works. No kunitconfig needs to be present.
For a list of all the flags supported by kunit_tool, you can run:
.. code-block:: bash
./tools/testing/kunit/kunit.py run --help

26
Documentation/dev-tools/kunit/start.rst
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@ -19,21 +19,21 @@ The wrapper can be run with:
.. code-block:: bash
./tools/testing/kunit/kunit.py run
./tools/testing/kunit/kunit.py run --defconfig
Creating a kunitconfig
======================
The Python script is a thin wrapper around Kbuild as such, it needs to be
configured with a ``kunitconfig`` file. This file essentially contains the
For more information on this wrapper (also called kunit_tool) checkout the
:doc:`kunit-tool` page.
Creating a .kunitconfig
=======================
The Python script is a thin wrapper around Kbuild. As such, it needs to be
configured with a ``.kunitconfig`` file. This file essentially contains the
regular Kernel config, with the specific test targets as well.
.. code-block:: bash
git clone -b master https://kunit.googlesource.com/kunitconfig $PATH_TO_KUNITCONFIG_REPO
cd $PATH_TO_LINUX_REPO
ln -s $PATH_TO_KUNIT_CONFIG_REPO/kunitconfig kunitconfig
You may want to add kunitconfig to your local gitignore.
cp arch/um/configs/kunit_defconfig .kunitconfig
Verifying KUnit Works
---------------------
@ -59,8 +59,8 @@ If everything worked correctly, you should see the following:
followed by a list of tests that are run. All of them should be passing.
.. note::
Because it is building a lot of sources for the first time, the ``Building
kunit kernel`` step may take a while.
Because it is building a lot of sources for the first time, the
``Building KUnit kernel`` step may take a while.
Writing your first test
=======================
@ -148,7 +148,7 @@ and the following to ``drivers/misc/Makefile``:
obj-$(CONFIG_MISC_EXAMPLE_TEST) += example-test.o
Now add it to your ``kunitconfig``:
Now add it to your ``.kunitconfig``:
.. code-block:: none
@ -159,7 +159,7 @@ Now you can run the test:
.. code-block:: bash
./tools/testing/kunit/kunit.py
./tools/testing/kunit/kunit.py run
You should see the following failure:

24
Documentation/dev-tools/kunit/usage.rst
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@ -16,7 +16,7 @@ Organization of this document
=============================
This document is organized into two main sections: Testing and Isolating
Behavior. The first covers what a unit test is and how to use KUnit to write
Behavior. The first covers what unit tests are and how to use KUnit to write
them. The second covers how to use KUnit to isolate code and make it possible
to unit test code that was otherwise un-unit-testable.
@ -174,13 +174,13 @@ Test Suites
~~~~~~~~~~~
Now obviously one unit test isn't very helpful; the power comes from having
many test cases covering all of your behaviors. Consequently it is common to
have many *similar* tests; in order to reduce duplication in these closely
related tests most unit testing frameworks provide the concept of a *test
suite*, in KUnit we call it a *test suite*; all it is is just a collection of
test cases for a unit of code with a set up function that gets invoked before
every test cases and then a tear down function that gets invoked after every
test case completes.
many test cases covering all of a unit's behaviors. Consequently it is common
to have many *similar* tests; in order to reduce duplication in these closely
related tests most unit testing frameworks - including KUnit - provide the
concept of a *test suite*. A *test suite* is just a collection of test cases
for a unit of code with a set up function that gets invoked before every test
case and then a tear down function that gets invoked after every test case
completes.
Example:
@ -211,7 +211,7 @@ KUnit test framework.
.. note::
A test case will only be run if it is associated with a test suite.
For a more information on these types of things see the :doc:`api/test`.
For more information on these types of things see the :doc:`api/test`.
Isolating Behavior
==================
@ -338,7 +338,7 @@ We can easily test this code by *faking out* the underlying EEPROM:
return count;
}
ssize_t fake_eeprom_write(struct eeprom *this, size_t offset, const char *buffer, size_t count)
ssize_t fake_eeprom_write(struct eeprom *parent, size_t offset, const char *buffer, size_t count)
{
struct fake_eeprom *this = container_of(parent, struct fake_eeprom, parent);
@ -454,7 +454,7 @@ KUnit on non-UML architectures
By default KUnit uses UML as a way to provide dependencies for code under test.
Under most circumstances KUnit's usage of UML should be treated as an
implementation detail of how KUnit works under the hood. Nevertheless, there
are instances where being able to run architecture specific code, or test
are instances where being able to run architecture specific code or test
against real hardware is desirable. For these reasons KUnit supports running on
other architectures.
@ -557,7 +557,7 @@ run your tests on your hardware setup just by compiling for your architecture.
.. important::
Always prefer tests that run on UML to tests that only run under a particular
architecture, and always prefer tests that run under QEMU or another easy
(and monitarily free) to obtain software environment to a specific piece of
(and monetarily free) to obtain software environment to a specific piece of
hardware.
Nevertheless, there are still valid reasons to write an architecture or hardware

15
Documentation/devicetree/bindings/arm/cpus.yaml
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@ -242,6 +242,21 @@ properties:
where voltage is in V, frequency is in MHz.
power-domains:
$ref: '/schemas/types.yaml#/definitions/phandle-array'
description:
List of phandles and PM domain specifiers, as defined by bindings of the
PM domain provider (see also ../power_domain.txt).
power-domain-names:
$ref: '/schemas/types.yaml#/definitions/string-array'
description:
A list of power domain name strings sorted in the same order as the
power-domains property.
For PSCI based platforms, the name corresponding to the index of the PSCI
PM domain provider, must be "psci".
qcom,saw:
$ref: '/schemas/types.yaml#/definitions/phandle'
description: |

104
Documentation/devicetree/bindings/arm/psci.yaml
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@ -102,6 +102,34 @@ properties:
[1] Kernel documentation - ARM idle states bindings
Documentation/devicetree/bindings/arm/idle-states.txt
"#power-domain-cells":
description:
The number of cells in a PM domain specifier as per binding in [3].
Must be 0 as to represent a single PM domain.
ARM systems can have multiple cores, sometimes in an hierarchical
arrangement. This often, but not always, maps directly to the processor
power topology of the system. Individual nodes in a topology have their
own specific power states and can be better represented hierarchically.
For these cases, the definitions of the idle states for the CPUs and the
CPU topology, must conform to the binding in [3]. The idle states
themselves must conform to the binding in [4] and must specify the
arm,psci-suspend-param property.
It should also be noted that, in PSCI firmware v1.0 the OS-Initiated
(OSI) CPU suspend mode is introduced. Using a hierarchical representation
helps to implement support for OSI mode and OS implementations may choose
to mandate it.
[3] Documentation/devicetree/bindings/power/power_domain.txt
[4] Documentation/devicetree/bindings/power/domain-idle-state.txt
power-domains:
$ref: '/schemas/types.yaml#/definitions/phandle-array'
description:
List of phandles and PM domain specifiers, as defined by bindings of the
PM domain provider.
required:
- compatible
@ -160,4 +188,80 @@ examples:
cpu_on = <0x95c10002>;
cpu_off = <0x95c10001>;
};
- |+
// Case 4: CPUs and CPU idle states described using the hierarchical model.
cpus {
#size-cells = <0>;
#address-cells = <1>;
CPU0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0>;
enable-method = "psci";
power-domains = <&CPU_PD0>;
power-domain-names = "psci";
};
CPU1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a57", "arm,armv8";
reg = <0x100>;
enable-method = "psci";
power-domains = <&CPU_PD1>;
power-domain-names = "psci";
};
idle-states {
CPU_PWRDN: cpu-power-down {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0000001>;
entry-latency-us = <10>;
exit-latency-us = <10>;
min-residency-us = <100>;
};
CLUSTER_RET: cluster-retention {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x1000011>;
entry-latency-us = <500>;
exit-latency-us = <500>;
min-residency-us = <2000>;
};
CLUSTER_PWRDN: cluster-power-down {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x1000031>;
entry-latency-us = <2000>;
exit-latency-us = <2000>;
min-residency-us = <6000>;
};
};
};
psci {
compatible = "arm,psci-1.0";
method = "smc";
CPU_PD0: cpu-pd0 {
#power-domain-cells = <0>;
domain-idle-states = <&CPU_PWRDN>;
power-domains = <&CLUSTER_PD>;
};
CPU_PD1: cpu-pd1 {
#power-domain-cells = <0>;
domain-idle-states = <&CPU_PWRDN>;
power-domains = <&CLUSTER_PD>;
};
CLUSTER_PD: cluster-pd {
#power-domain-cells = <0>;
domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>;
};
};
...

4
Documentation/devicetree/bindings/net/can/tcan4x5x.txt
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@ -10,7 +10,6 @@ Required properties:
- #size-cells: 0
- spi-max-frequency: Maximum frequency of the SPI bus the chip can
operate at should be less than or equal to 18 MHz.
- device-wake-gpios: Wake up GPIO to wake up the TCAN device.
- interrupt-parent: the phandle to the interrupt controller which provides
the interrupt.
- interrupts: interrupt specification for data-ready.
@ -23,6 +22,7 @@ Optional properties:
reset.
- device-state-gpios: Input GPIO that indicates if the device is in
a sleep state or if the device is active.
- device-wake-gpios: Wake up GPIO to wake up the TCAN device.
Example:
tcan4x5x: tcan4x5x@0 {
@ -36,5 +36,5 @@ tcan4x5x: tcan4x5x@0 {
interrupts = <14 GPIO_ACTIVE_LOW>;
device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>;
reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
};

1
Documentation/devicetree/bindings/net/snps,dwmac.yaml
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@ -347,6 +347,7 @@ allOf:
- st,spear600-gmac
then:
properties:
snps,tso:
$ref: /schemas/types.yaml#definitions/flag
description:

2
Documentation/devicetree/bindings/reset/brcm,brcmstb-reset.txt
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@ -22,6 +22,6 @@ Example:
};
&ethernet_switch {
resets = <&reset>;
resets = <&reset 26>;
reset-names = "switch";
};

5
Documentation/kbuild/kconfig-language.rst
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@ -196,14 +196,11 @@ applicable everywhere (see syntax).
or equal to the first symbol and smaller than or equal to the second
symbol.
- help text: "help" or "---help---"
- help text: "help"
This defines a help text. The end of the help text is determined by
the indentation level, this means it ends at the first line which has
a smaller indentation than the first line of the help text.
"---help---" and "help" do not differ in behaviour, "---help---" is
used to help visually separate configuration logic from help within
the file as an aid to developers.
- misc options: "option" <symbol>[=<value>]

16
Documentation/kbuild/makefiles.rst
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@ -297,9 +297,19 @@ more details, with real examples.
If CONFIG_EXT2_FS is set to either 'y' (built-in) or 'm' (modular)
the corresponding obj- variable will be set, and kbuild will descend
down in the ext2 directory.
Kbuild only uses this information to decide that it needs to visit
the directory, it is the Makefile in the subdirectory that
specifies what is modular and what is built-in.
Kbuild uses this information not only to decide that it needs to visit
the directory, but also to decide whether or not to link objects from
the directory into vmlinux.
When Kbuild descends into the directory with 'y', all built-in objects
from that directory are combined into the built-in.a, which will be
eventually linked into vmlinux.
When Kbuild descends into the directory with 'm', in contrast, nothing
from that directory will be linked into vmlinux. If the Makefile in
that directory specifies obj-y, those objects will be left orphan.
It is very likely a bug of the Makefile or of dependencies in Kconfig.
It is good practice to use a `CONFIG_` variable when assigning directory
names. This allows kbuild to totally skip the directory if the

2
Documentation/networking/j1939.rst
Просмотреть файл

@ -339,7 +339,7 @@ To claim an address following code example can be used:
.pgn = J1939_PGN_ADDRESS_CLAIMED,
.pgn_mask = J1939_PGN_PDU1_MAX,
}, {
.pgn = J1939_PGN_ADDRESS_REQUEST,
.pgn = J1939_PGN_REQUEST,
.pgn_mask = J1939_PGN_PDU1_MAX,
}, {
.pgn = J1939_PGN_ADDRESS_COMMANDED,

28
MAINTAINERS
Просмотреть файл

@ -2272,6 +2272,7 @@ F: drivers/*/*s3c64xx*
F: drivers/*/*s5pv210*
F: drivers/memory/samsung/
F: drivers/soc/samsung/
F: drivers/tty/serial/samsung*
F: include/linux/soc/samsung/
F: Documentation/arm/samsung/
F: Documentation/devicetree/bindings/arm/samsung/
@ -5000,7 +5001,7 @@ F: include/linux/dma-mapping.h
F: include/linux/dma-noncoherent.h
DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5422
M: Lukasz Luba <l.luba@partner.samsung.com>
M: Lukasz Luba <lukasz.luba@arm.com>
L: linux-pm@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
S: Maintained
@ -6026,6 +6027,7 @@ M: Yash Shah <yash.shah@sifive.com>
L: linux-edac@vger.kernel.org
S: Supported
F: drivers/edac/sifive_edac.c
F: drivers/soc/sifive_l2_cache.c
EDAC-SKYLAKE
M: Tony Luck <tony.luck@intel.com>
@ -7032,6 +7034,7 @@ L: linux-acpi@vger.kernel.org
S: Maintained
F: Documentation/firmware-guide/acpi/gpio-properties.rst
F: drivers/gpio/gpiolib-acpi.c
F: drivers/gpio/gpiolib-acpi.h
GPIO IR Transmitter
M: Sean Young <sean@mess.org>
@ -9039,7 +9042,6 @@ F: include/linux/umh.h
KERNEL VIRTUAL MACHINE (KVM)
M: Paolo Bonzini <pbonzini@redhat.com>
M: Radim Krčmář <rkrcmar@redhat.com>
L: kvm@vger.kernel.org
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
@ -9074,9 +9076,9 @@ F: virt/kvm/arm/
F: include/kvm/arm_*
KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
M: James Hogan <jhogan@kernel.org>
L: linux-mips@vger.kernel.org
S: Supported
L: kvm@vger.kernel.org
S: Orphan
F: arch/mips/include/uapi/asm/kvm*
F: arch/mips/include/asm/kvm*
F: arch/mips/kvm/
@ -9111,7 +9113,6 @@ F: tools/testing/selftests/kvm/*/s390x/
KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)
M: Paolo Bonzini <pbonzini@redhat.com>
M: Radim Krčmář <rkrcmar@redhat.com>
R: Sean Christopherson <sean.j.christopherson@intel.com>
R: Vitaly Kuznetsov <vkuznets@redhat.com>
R: Wanpeng Li <wanpengli@tencent.com>
@ -10109,6 +10110,7 @@ S: Maintained
F: drivers/media/radio/radio-maxiradio*
MCAN MMIO DEVICE DRIVER
M: Dan Murphy <dmurphy@ti.com>
M: Sriram Dash <sriram.dash@samsung.com>
L: linux-can@vger.kernel.org
S: Maintained
@ -13709,6 +13711,15 @@ L: linux-arm-msm@vger.kernel.org
S: Maintained
F: drivers/iommu/qcom_iommu.c
QUALCOMM RMNET DRIVER
M: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
M: Sean Tranchetti <stranche@codeaurora.org>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/qualcomm/rmnet/
F: Documentation/networking/device_drivers/qualcomm/rmnet.txt
F: include/linux/if_rmnet.h
QUALCOMM TSENS THERMAL DRIVER
M: Amit Kucheria <amit.kucheria@linaro.org>
L: linux-pm@vger.kernel.org
@ -16533,6 +16544,13 @@ L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Odd Fixes
F: sound/soc/codecs/tas571x*
TI TCAN4X5X DEVICE DRIVER
M: Dan Murphy <dmurphy@ti.com>
L: linux-can@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/can/tcan4x5x.txt
F: drivers/net/can/m_can/tcan4x5x.c
TI TRF7970A NFC DRIVER
M: Mark Greer <mgreer@animalcreek.com>
L: linux-wireless@vger.kernel.org

5
Makefile
Просмотреть файл

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 5
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc4
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*
@ -414,6 +414,7 @@ STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
OBJSIZE = $(CROSS_COMPILE)size
READELF = $(CROSS_COMPILE)readelf
PAHOLE = pahole
LEX = flex
YACC = bison
@ -472,7 +473,7 @@ GCC_PLUGINS_CFLAGS :=
CLANG_FLAGS :=
export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL
export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE LEX YACC AWK INSTALLKERNEL
export PERL PYTHON PYTHON2 PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE

2
arch/arm/boot/dts/am335x-sancloud-bbe.dts
Просмотреть файл

@ -108,7 +108,7 @@
&cpsw_emac0 {
phy-handle = <&ethphy0>;
phy-mode = "rgmii-txid";
phy-mode = "rgmii-id";
};
&i2c0 {

2
arch/arm/boot/dts/am437x-gp-evm.dts
Просмотреть файл

@ -86,7 +86,7 @@
};
lcd0: display {
compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
compatible = "osddisplays,osd070t1718-19ts", "panel-dpi";
label = "lcd";
backlight = <&lcd_bl>;

2
arch/arm/boot/dts/am43x-epos-evm.dts
Просмотреть файл

@ -42,7 +42,7 @@
};
lcd0: display {
compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
compatible = "osddisplays,osd070t1718-19ts", "panel-dpi";
label = "lcd";
backlight = <&lcd_bl>;

4
arch/arm/boot/dts/bcm-cygnus.dtsi
Просмотреть файл

@ -174,8 +174,8 @@
mdio: mdio@18002000 {
compatible = "brcm,iproc-mdio";
reg = <0x18002000 0x8>;
#size-cells = <1>;
#address-cells = <0>;
#size-cells = <0>;
#address-cells = <1>;
status = "disabled";
gphy0: ethernet-phy@0 {

2
arch/arm/boot/dts/bcm2711.dtsi
Просмотреть файл

@ -43,7 +43,7 @@
<0x7c000000 0x0 0xfc000000 0x02000000>,
<0x40000000 0x0 0xff800000 0x00800000>;
/* Emulate a contiguous 30-bit address range for DMA */
dma-ranges = <0xc0000000 0x0 0x00000000 0x3c000000>;
dma-ranges = <0xc0000000 0x0 0x00000000 0x40000000>;
/*
* This node is the provider for the enable-method for

2
arch/arm/boot/dts/bcm283x.dtsi
Просмотреть файл

@ -37,7 +37,7 @@
trips {
cpu-crit {
temperature = <80000>;
temperature = <90000>;
hysteresis = <0>;
type = "critical";
};

4
arch/arm/boot/dts/bcm5301x.dtsi
Просмотреть файл

@ -353,8 +353,8 @@
mdio: mdio@18003000 {
compatible = "brcm,iproc-mdio";
reg = <0x18003000 0x8>;
#size-cells = <1>;
#address-cells = <0>;
#size-cells = <0>;
#address-cells = <1>;
};
mdio-bus-mux@18003000 {

5
arch/arm/boot/dts/e60k02.dtsi
Просмотреть файл

@ -265,11 +265,6 @@
regulator-name = "LDORTC1";
regulator-boot-on;
};
ldortc2_reg: LDORTC2 {
regulator-name = "LDORTC2";
regulator-boot-on;
};
};
};
};

28
arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
Просмотреть файл

@ -30,14 +30,26 @@
enable-active-high;
};
reg_sensors: regulator-sensors {
reg_peri_3v3: regulator-peri-3v3 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sensors_reg>;
regulator-name = "sensors-supply";
pinctrl-0 = <&pinctrl_peri_3v3>;
regulator-name = "VPERI_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio5 2 GPIO_ACTIVE_LOW>;
/*
* If you want to want to make this dynamic please
* check schematics and test all affected peripherals:
*
* - sensors
* - ethernet phy
* - can
* - bluetooth
* - wm8960 audio codec
* - ov5640 camera
*/
regulator-always-on;
};
reg_can_3v3: regulator-can-3v3 {
@ -140,6 +152,7 @@
pinctrl-0 = <&pinctrl_enet1>;
phy-mode = "rmii";
phy-handle = <&ethphy0>;
phy-supply = <&reg_peri_3v3>;
status = "okay";
};
@ -148,6 +161,7 @@
pinctrl-0 = <&pinctrl_enet2>;
phy-mode = "rmii";
phy-handle = <&ethphy1>;
phy-supply = <&reg_peri_3v3>;
status = "okay";
mdio {
@ -193,8 +207,8 @@
magnetometer@e {
compatible = "fsl,mag3110";
reg = <0x0e>;
vdd-supply = <&reg_sensors>;
vddio-supply = <&reg_sensors>;
vdd-supply = <&reg_peri_3v3>;
vddio-supply = <&reg_peri_3v3>;
};
};
@ -227,7 +241,7 @@
flash0: n25q256a@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "micron,n25q256a";
compatible = "micron,n25q256a", "jedec,spi-nor";
spi-max-frequency = <29000000>;
spi-rx-bus-width = <4>;
spi-tx-bus-width = <4>;
@ -462,7 +476,7 @@
>;
};
pinctrl_sensors_reg: sensorsreggrp {
pinctrl_peri_3v3: peri3v3grp {
fsl,pins = <
MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02 0x1b0b0
>;

1
arch/arm/configs/exynos_defconfig
Просмотреть файл

@ -350,6 +350,7 @@ CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_DETECT_HUNG_TASK is not set

1
arch/arm/configs/imx_v6_v7_defconfig
Просмотреть файл

@ -462,6 +462,7 @@ CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_PROVE_LOCKING=y
# CONFIG_DEBUG_BUGVERBOSE is not set

4
arch/arm/configs/omap2plus_defconfig
Просмотреть файл

@ -92,6 +92,7 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NETFILTER=y
CONFIG_PHONET=m
CONFIG_NET_SWITCHDEV=y
CONFIG_CAN=m
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
@ -181,6 +182,7 @@ CONFIG_SMSC911X=y
# CONFIG_NET_VENDOR_STMICRO is not set
CONFIG_TI_DAVINCI_EMAC=y
CONFIG_TI_CPSW=y
CONFIG_TI_CPSW_SWITCHDEV=y
CONFIG_TI_CPTS=y
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
@ -554,6 +556,6 @@ CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_SPLIT=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_SCHEDSTATS=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_TI_CPSW_SWITCHDEV=y

1
arch/arm/configs/shmobile_defconfig
Просмотреть файл

@ -212,4 +212,5 @@ CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=64
CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y

1
arch/arm/mach-bcm/bcm2711.c
Просмотреть файл

@ -13,6 +13,7 @@ static const char * const bcm2711_compat[] = {
#ifdef CONFIG_ARCH_MULTI_V7
"brcm,bcm2711",
#endif
NULL
};
DT_MACHINE_START(BCM2711, "BCM2711")

8
arch/arm/mach-imx/cpu.c
Просмотреть файл

@ -84,7 +84,7 @@ struct device * __init imx_soc_device_init(void)
const char *ocotp_compat = NULL;
struct soc_device *soc_dev;
struct device_node *root;
struct regmap *ocotp;
struct regmap *ocotp = NULL;
const char *soc_id;
u64 soc_uid = 0;
u32 val;
@ -148,11 +148,11 @@ struct device * __init imx_soc_device_init(void)
soc_id = "i.MX6UL";
break;
case MXC_CPU_IMX6ULL:
ocotp_compat = "fsl,imx6ul-ocotp";
ocotp_compat = "fsl,imx6ull-ocotp";
soc_id = "i.MX6ULL";
break;
case MXC_CPU_IMX6ULZ:
ocotp_compat = "fsl,imx6ul-ocotp";
ocotp_compat = "fsl,imx6ull-ocotp";
soc_id = "i.MX6ULZ";
break;
case MXC_CPU_IMX6SLL:
@ -175,7 +175,9 @@ struct device * __init imx_soc_device_init(void)
ocotp = syscon_regmap_lookup_by_compatible(ocotp_compat);
if (IS_ERR(ocotp))
pr_err("%s: failed to find %s regmap!\n", __func__, ocotp_compat);
}
if (!IS_ERR_OR_NULL(ocotp)) {
regmap_read(ocotp, OCOTP_UID_H, &val);
soc_uid = val;
regmap_read(ocotp, OCOTP_UID_L, &val);

2
arch/arm/mach-mmp/pxa168.h
Просмотреть файл

@ -17,9 +17,9 @@ extern void pxa168_clear_keypad_wakeup(void);
#include <linux/platform_data/keypad-pxa27x.h>
#include <linux/pxa168_eth.h>
#include <linux/platform_data/mv_usb.h>
#include <linux/soc/mmp/cputype.h>
#include "devices.h"
#include "cputype.h"
extern struct pxa_device_desc pxa168_device_uart1;
extern struct pxa_device_desc pxa168_device_uart2;

12
arch/arm/mach-vexpress/spc.c
Просмотреть файл

@ -551,8 +551,9 @@ static struct clk *ve_spc_clk_register(struct device *cpu_dev)
static int __init ve_spc_clk_init(void)
{
int cpu;
int cpu, cluster;
struct clk *clk;
bool init_opp_table[MAX_CLUSTERS] = { false };
if (!info)
return 0; /* Continue only if SPC is initialised */
@ -578,8 +579,17 @@ static int __init ve_spc_clk_init(void)
continue;
}
cluster = topology_physical_package_id(cpu_dev->id);
if (init_opp_table[cluster])
continue;
if (ve_init_opp_table(cpu_dev))
pr_warn("failed to initialise cpu%d opp table\n", cpu);
else if (dev_pm_opp_set_sharing_cpus(cpu_dev,
topology_core_cpumask(cpu_dev->id)))
pr_warn("failed to mark OPPs shared for cpu%d\n", cpu);
else
init_opp_table[cluster] = true;
}
platform_device_register_simple("vexpress-spc-cpufreq", -1, NULL, 0);

10
arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
Просмотреть файл

@ -88,7 +88,7 @@
reboot {
compatible ="syscon-reboot";
regmap = <&dcfg>;
regmap = <&rst>;
offset = <0xb0>;
mask = <0x02>;
};
@ -178,6 +178,12 @@
big-endian;
};
rst: syscon@1e60000 {
compatible = "syscon";
reg = <0x0 0x1e60000 0x0 0x10000>;
little-endian;
};
scfg: syscon@1fc0000 {
compatible = "fsl,ls1028a-scfg", "syscon";
reg = <0x0 0x1fc0000 0x0 0x10000>;
@ -584,7 +590,7 @@
0x00010004 0x0000003d
0x00010005 0x00000045
0x00010006 0x0000004d
0x00010007 0x00000045
0x00010007 0x00000055
0x00010008 0x0000005e
0x00010009 0x00000066
0x0001000a 0x0000006e

57
arch/arm64/boot/dts/qcom/msm8916.dtsi
Просмотреть файл

@ -102,10 +102,11 @@
reg = <0x0>;
next-level-cache = <&L2_0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
clocks = <&apcs>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>;
power-domains = <&CPU_PD0>;
power-domain-names = "psci";
};
CPU1: cpu@1 {
@ -114,10 +115,11 @@
reg = <0x1>;
next-level-cache = <&L2_0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
clocks = <&apcs>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>;
power-domains = <&CPU_PD1>;
power-domain-names = "psci";
};
CPU2: cpu@2 {
@ -126,10 +128,11 @@
reg = <0x2>;
next-level-cache = <&L2_0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
clocks = <&apcs>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>;
power-domains = <&CPU_PD2>;
power-domain-names = "psci";
};
CPU3: cpu@3 {
@ -138,10 +141,11 @@
reg = <0x3>;
next-level-cache = <&L2_0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
clocks = <&apcs>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>;
power-domains = <&CPU_PD3>;
power-domain-names = "psci";
};
L2_0: l2-cache {
@ -161,12 +165,57 @@
min-residency-us = <2000>;
local-timer-stop;
};
CLUSTER_RET: cluster-retention {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x41000012>;
entry-latency-us = <500>;
exit-latency-us = <500>;
min-residency-us = <2000>;
};
CLUSTER_PWRDN: cluster-gdhs {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x41000032>;
entry-latency-us = <2000>;
exit-latency-us = <2000>;
min-residency-us = <6000>;
};
};
};
psci {
compatible = "arm,psci-1.0";
method = "smc";
CPU_PD0: cpu-pd0 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP_0>;
};
CPU_PD1: cpu-pd1 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP_0>;
};
CPU_PD2: cpu-pd2 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP_0>;
};
CPU_PD3: cpu-pd3 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP_0>;
};
CLUSTER_PD: cluster-pd {
#power-domain-cells = <0>;
domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>;
};
};
pmu {

1
arch/arm64/kernel/cpu_errata.c
Просмотреть файл

@ -547,6 +547,7 @@ static const struct midr_range spectre_v2_safe_list[] = {
MIDR_ALL_VERSIONS(MIDR_CORTEX_A53),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
{ /* sentinel */ }
};

25
arch/arm64/kvm/sys_regs.c
Просмотреть файл

@ -2098,9 +2098,9 @@ static void unhandled_cp_access(struct kvm_vcpu *vcpu,
WARN_ON(1);
}
kvm_err("Unsupported guest CP%d access at: %08lx [%08lx]\n",
cp, *vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
print_sys_reg_instr(params);
print_sys_reg_msg(params,
"Unsupported guest CP%d access at: %08lx [%08lx]\n",
cp, *vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
kvm_inject_undefined(vcpu);
}
@ -2233,6 +2233,12 @@ int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
NULL, 0);
}
static bool is_imp_def_sys_reg(struct sys_reg_params *params)
{
// See ARM DDI 0487E.a, section D12.3.2
return params->Op0 == 3 && (params->CRn & 0b1011) == 0b1011;
}
static int emulate_sys_reg(struct kvm_vcpu *vcpu,
struct sys_reg_params *params)
{
@ -2248,10 +2254,12 @@ static int emulate_sys_reg(struct kvm_vcpu *vcpu,
if (likely(r)) {
perform_access(vcpu, params, r);
} else if (is_imp_def_sys_reg(params)) {
kvm_inject_undefined(vcpu);
} else {
kvm_err("Unsupported guest sys_reg access at: %lx [%08lx]\n",
*vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
print_sys_reg_instr(params);
print_sys_reg_msg(params,
"Unsupported guest sys_reg access at: %lx [%08lx]\n",
*vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
kvm_inject_undefined(vcpu);
}
return 1;
@ -2360,8 +2368,11 @@ static const struct sys_reg_desc *index_to_sys_reg_desc(struct kvm_vcpu *vcpu,
if ((id & KVM_REG_ARM_COPROC_MASK) != KVM_REG_ARM64_SYSREG)
return NULL;
if (!index_to_params(id, &params))
return NULL;
table = get_target_table(vcpu->arch.target, true, &num);
r = find_reg_by_id(id, &params, table, num);
r = find_reg(&params, table, num);
if (!r)
r = find_reg(&params, sys_reg_descs, ARRAY_SIZE(sys_reg_descs));

19
arch/arm64/kvm/sys_regs.h
Просмотреть файл

@ -62,11 +62,24 @@ struct sys_reg_desc {
#define REG_HIDDEN_USER (1 << 0) /* hidden from userspace ioctls */
#define REG_HIDDEN_GUEST (1 << 1) /* hidden from guest */
static __printf(2, 3)
inline void print_sys_reg_msg(const struct sys_reg_params *p,
char *fmt, ...)
{
va_list va;
va_start(va, fmt);
/* Look, we even formatted it for you to paste into the table! */
kvm_pr_unimpl("%pV { Op0(%2u), Op1(%2u), CRn(%2u), CRm(%2u), Op2(%2u), func_%s },\n",
&(struct va_format){ fmt, &va },
p->Op0, p->Op1, p->CRn, p->CRm, p->Op2, p->is_write ? "write" : "read");
va_end(va);
}
static inline void print_sys_reg_instr(const struct sys_reg_params *p)
{
/* Look, we even formatted it for you to paste into the table! */
kvm_pr_unimpl(" { Op0(%2u), Op1(%2u), CRn(%2u), CRm(%2u), Op2(%2u), func_%s },\n",
p->Op0, p->Op1, p->CRn, p->CRm, p->Op2, p->is_write ? "write" : "read");
/* GCC warns on an empty format string */
print_sys_reg_msg(p, "%s", "");
}
static inline bool ignore_write(struct kvm_vcpu *vcpu,

9
arch/mips/net/ebpf_jit.c
Просмотреть файл

@ -604,6 +604,7 @@ static void emit_const_to_reg(struct jit_ctx *ctx, int dst, u64 value)
static int emit_bpf_tail_call(struct jit_ctx *ctx, int this_idx)
{
int off, b_off;
int tcc_reg;
ctx->flags |= EBPF_SEEN_TC;
/*
@ -616,14 +617,14 @@ static int emit_bpf_tail_call(struct jit_ctx *ctx, int this_idx)
b_off = b_imm(this_idx + 1, ctx);
emit_instr(ctx, bne, MIPS_R_AT, MIPS_R_ZERO, b_off);
/*
* if (--TCC < 0)
* if (TCC-- < 0)
* goto out;
*/
/* Delay slot */
emit_instr(ctx, daddiu, MIPS_R_T5,
(ctx->flags & EBPF_TCC_IN_V1) ? MIPS_R_V1 : MIPS_R_S4, -1);
tcc_reg = (ctx->flags & EBPF_TCC_IN_V1) ? MIPS_R_V1 : MIPS_R_S4;
emit_instr(ctx, daddiu, MIPS_R_T5, tcc_reg, -1);
b_off = b_imm(this_idx + 1, ctx);
emit_instr(ctx, bltz, MIPS_R_T5, b_off);
emit_instr(ctx, bltz, tcc_reg, b_off);
/*
* prog = array->ptrs[index];
* if (prog == NULL)

10
arch/parisc/include/asm/cmpxchg.h
Просмотреть файл

@ -44,8 +44,14 @@ __xchg(unsigned long x, __volatile__ void *ptr, int size)
** if (((unsigned long)p & 0xf) == 0)
** return __ldcw(p);
*/
#define xchg(ptr, x) \
((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
#define xchg(ptr, x) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) _x_ = (x); \
__ret = (__typeof__(*(ptr))) \
__xchg((unsigned long)_x_, (ptr), sizeof(*(ptr))); \
__ret; \
})
/* bug catcher for when unsupported size is used - won't link */
extern void __cmpxchg_called_with_bad_pointer(void);

4
arch/parisc/include/asm/kexec.h
Просмотреть файл

@ -2,8 +2,6 @@
#ifndef _ASM_PARISC_KEXEC_H
#define _ASM_PARISC_KEXEC_H
#ifdef CONFIG_KEXEC
/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
@ -32,6 +30,4 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_KEXEC */
#endif /* _ASM_PARISC_KEXEC_H */

2
arch/parisc/kernel/Makefile
Просмотреть файл

@ -37,5 +37,5 @@ obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_KEXEC) += kexec.o relocate_kernel.o
obj-$(CONFIG_KEXEC_CORE) += kexec.o relocate_kernel.o
obj-$(CONFIG_KEXEC_FILE) += kexec_file.o

2
arch/parisc/kernel/drivers.c
Просмотреть файл

@ -810,7 +810,7 @@ EXPORT_SYMBOL(device_to_hwpath);
static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
struct device *parent);
static void walk_lower_bus(struct parisc_device *dev)
static void __init walk_lower_bus(struct parisc_device *dev)
{
unsigned long io_io_low, io_io_high;

3
arch/parisc/kernel/pdt.c
Просмотреть файл

@ -327,8 +327,7 @@ static int pdt_mainloop(void *unused)
((pde & PDT_ADDR_SINGLE_ERR) == 0))
memory_failure(pde >> PAGE_SHIFT, 0);
else
soft_offline_page(
pfn_to_page(pde >> PAGE_SHIFT), 0);
soft_offline_page(pde >> PAGE_SHIFT, 0);
#else
pr_crit("PDT: memory error at 0x%lx ignored.\n"
"Rebuild kernel with CONFIG_MEMORY_FAILURE=y "

13
arch/powerpc/include/asm/spinlock.h
Просмотреть файл

@ -36,10 +36,12 @@
#endif
#ifdef CONFIG_PPC_PSERIES
DECLARE_STATIC_KEY_FALSE(shared_processor);
#define vcpu_is_preempted vcpu_is_preempted
static inline bool vcpu_is_preempted(int cpu)
{
if (!firmware_has_feature(FW_FEATURE_SPLPAR))
if (!static_branch_unlikely(&shared_processor))
return false;
return !!(be32_to_cpu(lppaca_of(cpu).yield_count) & 1);
}
@ -110,13 +112,8 @@ static inline void splpar_rw_yield(arch_rwlock_t *lock) {};
static inline bool is_shared_processor(void)
{
/*
* LPPACA is only available on Pseries so guard anything LPPACA related to
* allow other platforms (which include this common header) to compile.
*/
#ifdef CONFIG_PPC_PSERIES
return (IS_ENABLED(CONFIG_PPC_SPLPAR) &&
lppaca_shared_proc(local_paca->lppaca_ptr));
#ifdef CONFIG_PPC_SPLPAR
return static_branch_unlikely(&shared_processor);
#else
return false;
#endif

9
arch/powerpc/include/asm/uaccess.h
Просмотреть файл

@ -401,7 +401,7 @@ copy_to_user_mcsafe(void __user *to, const void *from, unsigned long n)
return n;
}
extern unsigned long __clear_user(void __user *addr, unsigned long size);
unsigned long __arch_clear_user(void __user *addr, unsigned long size);
static inline unsigned long clear_user(void __user *addr, unsigned long size)
{
@ -409,12 +409,17 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size)
might_fault();
if (likely(access_ok(addr, size))) {
allow_write_to_user(addr, size);
ret = __clear_user(addr, size);
ret = __arch_clear_user(addr, size);
prevent_write_to_user(addr, size);
}
return ret;
}
static inline unsigned long __clear_user(void __user *addr, unsigned long size)
{
return clear_user(addr, size);
}
extern long strncpy_from_user(char *dst, const char __user *src, long count);
extern __must_check long strnlen_user(const char __user *str, long n);

4
arch/powerpc/kernel/irq.c
Просмотреть файл

@ -619,8 +619,6 @@ void __do_irq(struct pt_regs *regs)
trace_irq_entry(regs);
check_stack_overflow();
/*
* Query the platform PIC for the interrupt & ack it.
*
@ -652,6 +650,8 @@ void do_IRQ(struct pt_regs *regs)
irqsp = hardirq_ctx[raw_smp_processor_id()];
sirqsp = softirq_ctx[raw_smp_processor_id()];
check_stack_overflow();
/* Already there ? */
if (unlikely(cursp == irqsp || cursp == sirqsp)) {
__do_irq(regs);

3
arch/powerpc/kvm/book3s_hv.c
Просмотреть файл

@ -4983,7 +4983,8 @@ static void kvmppc_core_destroy_vm_hv(struct kvm *kvm)
if (nesting_enabled(kvm))
kvmhv_release_all_nested(kvm);
kvm->arch.process_table = 0;
uv_svm_terminate(kvm->arch.lpid);
if (kvm->arch.secure_guest)
uv_svm_terminate(kvm->arch.lpid);
kvmhv_set_ptbl_entry(kvm->arch.lpid, 0, 0);
}

4
arch/powerpc/kvm/book3s_hv_rmhandlers.S
Просмотреть файл

@ -1117,7 +1117,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
ld r7, VCPU_GPR(R7)(r4)
bne ret_to_ultra
lwz r0, VCPU_CR(r4)
ld r0, VCPU_CR(r4)
mtcr r0
ld r0, VCPU_GPR(R0)(r4)
@ -1137,7 +1137,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
* R3 = UV_RETURN
*/
ret_to_ultra:
lwz r0, VCPU_CR(r4)
ld r0, VCPU_CR(r4)
mtcr r0
ld r0, VCPU_GPR(R3)(r4)

4
arch/powerpc/lib/string_32.S
Просмотреть файл

@ -17,7 +17,7 @@ CACHELINE_BYTES = L1_CACHE_BYTES
LG_CACHELINE_BYTES = L1_CACHE_SHIFT
CACHELINE_MASK = (L1_CACHE_BYTES-1)
_GLOBAL(__clear_user)
_GLOBAL(__arch_clear_user)
/*
* Use dcbz on the complete cache lines in the destination
* to set them to zero. This requires that the destination
@ -87,4 +87,4 @@ _GLOBAL(__clear_user)
EX_TABLE(8b, 91b)
EX_TABLE(9b, 91b)
EXPORT_SYMBOL(__clear_user)
EXPORT_SYMBOL(__arch_clear_user)

6
arch/powerpc/lib/string_64.S
Просмотреть файл

@ -17,7 +17,7 @@ PPC64_CACHES:
.section ".text"
/**
* __clear_user: - Zero a block of memory in user space, with less checking.
* __arch_clear_user: - Zero a block of memory in user space, with less checking.
* @to: Destination address, in user space.
* @n: Number of bytes to zero.
*
@ -58,7 +58,7 @@ err3; stb r0,0(r3)
mr r3,r4
blr
_GLOBAL_TOC(__clear_user)
_GLOBAL_TOC(__arch_clear_user)
cmpdi r4,32
neg r6,r3
li r0,0
@ -181,4 +181,4 @@ err1; dcbz 0,r3
cmpdi r4,32
blt .Lshort_clear
b .Lmedium_clear
EXPORT_SYMBOL(__clear_user)
EXPORT_SYMBOL(__arch_clear_user)

8
arch/powerpc/mm/mem.c
Просмотреть файл

@ -289,6 +289,14 @@ void __init mem_init(void)
BUILD_BUG_ON(MMU_PAGE_COUNT > 16);
#ifdef CONFIG_SWIOTLB
/*
* Some platforms (e.g. 85xx) limit DMA-able memory way below
* 4G. We force memblock to bottom-up mode to ensure that the
* memory allocated in swiotlb_init() is DMA-able.
* As it's the last memblock allocation, no need to reset it
* back to to-down.
*/
memblock_set_bottom_up(true);
swiotlb_init(0);
#endif

2
arch/powerpc/mm/nohash/8xx.c
Просмотреть файл

@ -103,7 +103,7 @@ static void mmu_patch_addis(s32 *site, long simm)
patch_instruction_site(site, instr);
}
void __init mmu_mapin_ram_chunk(unsigned long offset, unsigned long top, pgprot_t prot)
static void mmu_mapin_ram_chunk(unsigned long offset, unsigned long top, pgprot_t prot)
{
unsigned long s = offset;
unsigned long v = PAGE_OFFSET + s;

10
arch/powerpc/platforms/pseries/cmm.c
Просмотреть файл

@ -539,6 +539,16 @@ static int cmm_migratepage(struct balloon_dev_info *b_dev_info,
/* balloon page list reference */
get_page(newpage);
/*
* When we migrate a page to a different zone, we have to fixup the
* count of both involved zones as we adjusted the managed page count
* when inflating.
*/
if (page_zone(page) != page_zone(newpage)) {
adjust_managed_page_count(page, 1);
adjust_managed_page_count(newpage, -1);
}
spin_lock_irqsave(&b_dev_info->pages_lock, flags);
balloon_page_insert(b_dev_info, newpage);
balloon_page_delete(page);

7
arch/powerpc/platforms/pseries/setup.c
Просмотреть файл

@ -74,6 +74,9 @@
#include "pseries.h"
#include "../../../../drivers/pci/pci.h"
DEFINE_STATIC_KEY_FALSE(shared_processor);
EXPORT_SYMBOL_GPL(shared_processor);
int CMO_PrPSP = -1;
int CMO_SecPSP = -1;
unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT_4K);
@ -758,6 +761,10 @@ static void __init pSeries_setup_arch(void)
if (firmware_has_feature(FW_FEATURE_LPAR)) {
vpa_init(boot_cpuid);
if (lppaca_shared_proc(get_lppaca()))
static_branch_enable(&shared_processor);
ppc_md.power_save = pseries_lpar_idle;
ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
#ifdef CONFIG_PCI_IOV

2
arch/riscv/Kconfig
Просмотреть файл

@ -154,7 +154,7 @@ config GENERIC_HWEIGHT
def_bool y
config FIX_EARLYCON_MEM
def_bool CONFIG_MMU
def_bool MMU
config PGTABLE_LEVELS
int

38
arch/riscv/include/asm/pgtable.h
Просмотреть файл

@ -90,6 +90,27 @@ extern pgd_t swapper_pg_dir[];
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1)
#define VMALLOC_END (PAGE_OFFSET - 1)
#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE)
/*
* Roughly size the vmemmap space to be large enough to fit enough
* struct pages to map half the virtual address space. Then
* position vmemmap directly below the VMALLOC region.
*/
#define VMEMMAP_SHIFT \
(CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT)
#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT)
#define VMEMMAP_END (VMALLOC_START - 1)
#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE)
/*
* Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel
* is configured with CONFIG_SPARSEMEM_VMEMMAP enabled.
*/
#define vmemmap ((struct page *)VMEMMAP_START)
static inline int pmd_present(pmd_t pmd)
{
return (pmd_val(pmd) & (_PAGE_PRESENT | _PAGE_PROT_NONE));
@ -400,23 +421,6 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1)
#define VMALLOC_END (PAGE_OFFSET - 1)
#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE)
/*
* Roughly size the vmemmap space to be large enough to fit enough
* struct pages to map half the virtual address space. Then
* position vmemmap directly below the VMALLOC region.
*/
#define VMEMMAP_SHIFT \
(CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT)
#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT)
#define VMEMMAP_END (VMALLOC_START - 1)
#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE)
#define vmemmap ((struct page *)VMEMMAP_START)
#define PCI_IO_SIZE SZ_16M
#define PCI_IO_END VMEMMAP_START
#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE)

1
arch/riscv/kernel/entry.S
Просмотреть файл

@ -246,6 +246,7 @@ check_syscall_nr:
*/
li t1, -1
beq a7, t1, ret_from_syscall_rejected
blt a7, t1, 1f
/* Call syscall */
la s0, sys_call_table
slli t0, a7, RISCV_LGPTR

2
arch/riscv/kernel/head.S
Просмотреть файл

@ -246,7 +246,7 @@ ENTRY(reset_regs)
li t4, 0
li t5, 0
li t6, 0
csrw sscratch, 0
csrw CSR_SCRATCH, 0
#ifdef CONFIG_FPU
csrr t0, CSR_MISA

3
arch/riscv/kernel/riscv_ksyms.c
Просмотреть файл

@ -9,8 +9,5 @@
/*
* Assembly functions that may be used (directly or indirectly) by modules
*/
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(__asm_copy_to_user);
EXPORT_SYMBOL(__asm_copy_from_user);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memcpy);

4
arch/riscv/lib/uaccess.S
Просмотреть файл

@ -1,4 +1,5 @@
#include <linux/linkage.h>
#include <asm-generic/export.h>
#include <asm/asm.h>
#include <asm/csr.h>
@ -66,6 +67,8 @@ ENTRY(__asm_copy_from_user)
j 3b
ENDPROC(__asm_copy_to_user)
ENDPROC(__asm_copy_from_user)
EXPORT_SYMBOL(__asm_copy_to_user)
EXPORT_SYMBOL(__asm_copy_from_user)
ENTRY(__clear_user)
@ -108,6 +111,7 @@ ENTRY(__clear_user)
bltu a0, a3, 5b
j 3b
ENDPROC(__clear_user)
EXPORT_SYMBOL(__clear_user)
.section .fixup,"ax"
.balign 4

1
arch/riscv/mm/Makefile
Просмотреть файл

@ -10,7 +10,6 @@ obj-y += extable.o
obj-$(CONFIG_MMU) += fault.o
obj-y += cacheflush.o
obj-y += context.o
obj-y += sifive_l2_cache.o
ifeq ($(CONFIG_MMU),y)
obj-$(CONFIG_SMP) += tlbflush.o

1
arch/riscv/mm/cacheflush.c
Просмотреть файл

@ -22,6 +22,7 @@ void flush_icache_all(void)
else
on_each_cpu(ipi_remote_fence_i, NULL, 1);
}
EXPORT_SYMBOL(flush_icache_all);
/*
* Performs an icache flush for the given MM context. RISC-V has no direct

4
arch/riscv/net/bpf_jit_comp.c
Просмотреть файл

@ -631,14 +631,14 @@ static int emit_bpf_tail_call(int insn, struct rv_jit_context *ctx)
return -1;
emit(rv_bgeu(RV_REG_A2, RV_REG_T1, off >> 1), ctx);
/* if (--TCC < 0)
/* if (TCC-- < 0)
* goto out;
*/
emit(rv_addi(RV_REG_T1, tcc, -1), ctx);
off = (tc_ninsn - (ctx->ninsns - start_insn)) << 2;
if (is_13b_check(off, insn))
return -1;
emit(rv_blt(RV_REG_T1, RV_REG_ZERO, off >> 1), ctx);
emit(rv_blt(tcc, RV_REG_ZERO, off >> 1), ctx);
/* prog = array->ptrs[index];
* if (!prog)

4
arch/s390/include/asm/timex.h
Просмотреть файл

@ -194,9 +194,9 @@ static inline unsigned long long get_tod_clock_monotonic(void)
{
unsigned long long tod;
preempt_disable();
preempt_disable_notrace();
tod = get_tod_clock() - *(unsigned long long *) &tod_clock_base[1];
preempt_enable();
preempt_enable_notrace();
return tod;
}

1
arch/s390/kernel/mcount.S
Просмотреть файл

@ -35,6 +35,7 @@ EXPORT_SYMBOL(_mcount)
ENTRY(ftrace_caller)
.globl ftrace_regs_caller
.set ftrace_regs_caller,ftrace_caller
stg %r14,(__SF_GPRS+8*8)(%r15) # save traced function caller
lgr %r1,%r15
#if !(defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT))
aghi %r0,MCOUNT_RETURN_FIXUP

15
arch/s390/kernel/unwind_bc.c
Просмотреть файл

@ -36,10 +36,17 @@ static bool update_stack_info(struct unwind_state *state, unsigned long sp)
return true;
}
static inline bool is_task_pt_regs(struct unwind_state *state,
struct pt_regs *regs)
static inline bool is_final_pt_regs(struct unwind_state *state,
struct pt_regs *regs)
{
return task_pt_regs(state->task) == regs;
/* user mode or kernel thread pt_regs at the bottom of task stack */
if (task_pt_regs(state->task) == regs)
return true;
/* user mode pt_regs at the bottom of irq stack */
return state->stack_info.type == STACK_TYPE_IRQ &&
state->stack_info.end - sizeof(struct pt_regs) == (unsigned long)regs &&
READ_ONCE_NOCHECK(regs->psw.mask) & PSW_MASK_PSTATE;
}
bool unwind_next_frame(struct unwind_state *state)
@ -80,7 +87,7 @@ bool unwind_next_frame(struct unwind_state *state)
if (!on_stack(info, sp, sizeof(struct pt_regs)))
goto out_err;
regs = (struct pt_regs *) sp;
if (is_task_pt_regs(state, regs))
if (is_final_pt_regs(state, regs))
goto out_stop;
ip = READ_ONCE_NOCHECK(regs->psw.addr);
sp = READ_ONCE_NOCHECK(regs->gprs[15]);

1
arch/s390/purgatory/.gitignore поставляемый
Просмотреть файл

@ -1,3 +1,4 @@
purgatory
purgatory.chk
purgatory.lds
purgatory.ro

19
arch/s390/purgatory/Makefile
Просмотреть файл

@ -4,7 +4,7 @@ OBJECT_FILES_NON_STANDARD := y
purgatory-y := head.o purgatory.o string.o sha256.o mem.o
targets += $(purgatory-y) purgatory.lds purgatory purgatory.ro
targets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro
PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
$(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE
@ -15,8 +15,10 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS
$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE
$(call if_changed_rule,as_o_S)
$(obj)/string.o: $(srctree)/arch/s390/lib/string.c FORCE
$(call if_changed_rule,cc_o_c)
KCOV_INSTRUMENT := n
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
@ -26,15 +28,22 @@ KBUILD_CFLAGS += $(CLANG_FLAGS)
KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
LDFLAGS_purgatory := -r --no-undefined -nostdlib -z nodefaultlib -T
# Since we link purgatory with -r unresolved symbols are not checked, so we
# also link a purgatory.chk binary without -r to check for unresolved symbols.
PURGATORY_LDFLAGS := -nostdlib -z nodefaultlib
LDFLAGS_purgatory := -r $(PURGATORY_LDFLAGS) -T
LDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS)
$(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE
$(call if_changed,ld)
$(obj)/purgatory.chk: $(obj)/purgatory FORCE
$(call if_changed,ld)
OBJCOPYFLAGS_purgatory.ro := -O elf64-s390
OBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*'
OBJCOPYFLAGS_purgatory.ro += --remove-section='.comment'
OBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*'
$(obj)/purgatory.ro: $(obj)/purgatory FORCE
$(obj)/purgatory.ro: $(obj)/purgatory $(obj)/purgatory.chk FORCE
$(call if_changed,objcopy)
$(obj)/kexec-purgatory.o: $(obj)/kexec-purgatory.S $(obj)/purgatory.ro FORCE

3
arch/s390/purgatory/string.c Normal file
Просмотреть файл

@ -0,0 +1,3 @@
// SPDX-License-Identifier: GPL-2.0
#define __HAVE_ARCH_MEMCMP /* arch function */
#include "../lib/string.c"

2
arch/x86/boot/compressed/Makefile
Просмотреть файл

@ -103,7 +103,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o
quiet_cmd_check_data_rel = DATAREL $@
define cmd_check_data_rel
for obj in $(filter %.o,$^); do \
${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \
$(READELF) -S $$obj | grep -qF .rel.local && { \
echo "error: $$obj has data relocations!" >&2; \
exit 1; \
} || true; \

19
arch/x86/events/core.c
Просмотреть файл

@ -376,7 +376,7 @@ int x86_add_exclusive(unsigned int what)
* LBR and BTS are still mutually exclusive.
*/
if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
return 0;
goto out;
if (!atomic_inc_not_zero(&x86_pmu.lbr_exclusive[what])) {
mutex_lock(&pmc_reserve_mutex);
@ -388,6 +388,7 @@ int x86_add_exclusive(unsigned int what)
mutex_unlock(&pmc_reserve_mutex);
}
out:
atomic_inc(&active_events);
return 0;
@ -398,11 +399,15 @@ fail_unlock:
void x86_del_exclusive(unsigned int what)
{
atomic_dec(&active_events);
/*
* See the comment in x86_add_exclusive().
*/
if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
return;
atomic_dec(&x86_pmu.lbr_exclusive[what]);
atomic_dec(&active_events);
}
int x86_setup_perfctr(struct perf_event *event)
@ -1642,9 +1647,12 @@ static struct attribute_group x86_pmu_format_group __ro_after_init = {
ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page)
{
struct perf_pmu_events_attr *pmu_attr = \
struct perf_pmu_events_attr *pmu_attr =
container_of(attr, struct perf_pmu_events_attr, attr);
u64 config = x86_pmu.event_map(pmu_attr->id);
u64 config = 0;
if (pmu_attr->id < x86_pmu.max_events)
config = x86_pmu.event_map(pmu_attr->id);
/* string trumps id */
if (pmu_attr->event_str)
@ -1713,6 +1721,9 @@ is_visible(struct kobject *kobj, struct attribute *attr, int idx)
{
struct perf_pmu_events_attr *pmu_attr;
if (idx >= x86_pmu.max_events)
return 0;
pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr);
/* str trumps id */
return pmu_attr->event_str || x86_pmu.event_map(idx) ? attr->mode : 0;

16
arch/x86/events/intel/bts.c
Просмотреть файл

@ -63,9 +63,17 @@ struct bts_buffer {
static struct pmu bts_pmu;
static int buf_nr_pages(struct page *page)
{
if (!PagePrivate(page))
return 1;
return 1 << page_private(page);
}
static size_t buf_size(struct page *page)
{
return 1 << (PAGE_SHIFT + page_private(page));
return buf_nr_pages(page) * PAGE_SIZE;
}
static void *
@ -83,9 +91,7 @@ bts_buffer_setup_aux(struct perf_event *event, void **pages,
/* count all the high order buffers */
for (pg = 0, nbuf = 0; pg < nr_pages;) {
page = virt_to_page(pages[pg]);
if (WARN_ON_ONCE(!PagePrivate(page) && nr_pages > 1))
return NULL;
pg += 1 << page_private(page);
pg += buf_nr_pages(page);
nbuf++;
}
@ -109,7 +115,7 @@ bts_buffer_setup_aux(struct perf_event *event, void **pages,
unsigned int __nr_pages;
page = virt_to_page(pages[pg]);
__nr_pages = PagePrivate(page) ? 1 << page_private(page) : 1;
__nr_pages = buf_nr_pages(page);
buf->buf[nbuf].page = page;
buf->buf[nbuf].offset = offset;
buf->buf[nbuf].displacement = (pad ? BTS_RECORD_SIZE - pad : 0);

4
arch/x86/kernel/cpu/mce/amd.c
Просмотреть файл

@ -266,10 +266,10 @@ static void smca_configure(unsigned int bank, unsigned int cpu)
smca_set_misc_banks_map(bank, cpu);
/* Return early if this bank was already initialized. */
if (smca_banks[bank].hwid)
if (smca_banks[bank].hwid && smca_banks[bank].hwid->hwid_mcatype != 0)
return;
if (rdmsr_safe_on_cpu(cpu, MSR_AMD64_SMCA_MCx_IPID(bank), &low, &high)) {
if (rdmsr_safe(MSR_AMD64_SMCA_MCx_IPID(bank), &low, &high)) {
pr_warn("Failed to read MCA_IPID for bank %d\n", bank);
return;
}

2
arch/x86/kernel/cpu/mce/core.c
Просмотреть файл

@ -819,8 +819,8 @@ static int mce_no_way_out(struct mce *m, char **msg, unsigned long *validp,
if (quirk_no_way_out)
quirk_no_way_out(i, m, regs);
m->bank = i;
if (mce_severity(m, mca_cfg.tolerant, &tmp, true) >= MCE_PANIC_SEVERITY) {
m->bank = i;
mce_read_aux(m, i);
*msg = tmp;
return 1;

4
arch/x86/kernel/early-quirks.c
Просмотреть файл

@ -710,8 +710,12 @@ static struct chipset early_qrk[] __initdata = {
*/
{ PCI_VENDOR_ID_INTEL, 0x0f00,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3e20,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3ec4,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x8a12,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
{}

6
arch/x86/kvm/cpuid.c
Просмотреть файл

@ -402,7 +402,8 @@ static inline void do_cpuid_7_mask(struct kvm_cpuid_entry2 *entry, int index)
entry->edx |= F(SPEC_CTRL);
if (boot_cpu_has(X86_FEATURE_STIBP))
entry->edx |= F(INTEL_STIBP);
if (boot_cpu_has(X86_FEATURE_SSBD))
if (boot_cpu_has(X86_FEATURE_SPEC_CTRL_SSBD) ||
boot_cpu_has(X86_FEATURE_AMD_SSBD))
entry->edx |= F(SPEC_CTRL_SSBD);
/*
* We emulate ARCH_CAPABILITIES in software even
@ -759,7 +760,8 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function,
entry->ebx |= F(AMD_IBRS);
if (boot_cpu_has(X86_FEATURE_STIBP))
entry->ebx |= F(AMD_STIBP);
if (boot_cpu_has(X86_FEATURE_SSBD))
if (boot_cpu_has(X86_FEATURE_SPEC_CTRL_SSBD) ||
boot_cpu_has(X86_FEATURE_AMD_SSBD))
entry->ebx |= F(AMD_SSBD);
if (!boot_cpu_has_bug(X86_BUG_SPEC_STORE_BYPASS))
entry->ebx |= F(AMD_SSB_NO);

6
arch/x86/platform/efi/quirks.c
Просмотреть файл

@ -260,10 +260,6 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
return;
}
/* No need to reserve regions that will never be freed. */
if (md.attribute & EFI_MEMORY_RUNTIME)
return;
size += addr % EFI_PAGE_SIZE;
size = round_up(size, EFI_PAGE_SIZE);
addr = round_down(addr, EFI_PAGE_SIZE);
@ -293,6 +289,8 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
early_memunmap(new, new_size);
efi_memmap_install(new_phys, num_entries);
e820__range_update(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
e820__update_table(e820_table);
}
/*

11
block/blk-core.c
Просмотреть файл

@ -885,11 +885,14 @@ generic_make_request_checks(struct bio *bio)
}
/*
* For a REQ_NOWAIT based request, return -EOPNOTSUPP
* if queue is not a request based queue.
* Non-mq queues do not honor REQ_NOWAIT, so complete a bio
* with BLK_STS_AGAIN status in order to catch -EAGAIN and
* to give a chance to the caller to repeat request gracefully.
*/
if ((bio->bi_opf & REQ_NOWAIT) && !queue_is_mq(q))
goto not_supported;
if ((bio->bi_opf & REQ_NOWAIT) && !queue_is_mq(q)) {
status = BLK_STS_AGAIN;
goto end_io;
}
if (should_fail_bio(bio))
goto end_io;

5
block/blk-flush.c
Просмотреть файл

@ -69,6 +69,7 @@
#include <linux/blkdev.h>
#include <linux/gfp.h>
#include <linux/blk-mq.h>
#include <linux/lockdep.h>
#include "blk.h"
#include "blk-mq.h"
@ -505,6 +506,9 @@ struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q,
INIT_LIST_HEAD(&fq->flush_queue[1]);
INIT_LIST_HEAD(&fq->flush_data_in_flight);
lockdep_register_key(&fq->key);
lockdep_set_class(&fq->mq_flush_lock, &fq->key);
return fq;
fail_rq:
@ -519,6 +523,7 @@ void blk_free_flush_queue(struct blk_flush_queue *fq)
if (!fq)
return;
lockdep_unregister_key(&fq->key);
kfree(fq->flush_rq);
kfree(fq);
}

13
block/blk-iocost.c
Просмотреть файл

@ -1212,7 +1212,7 @@ static enum hrtimer_restart iocg_waitq_timer_fn(struct hrtimer *timer)
return HRTIMER_NORESTART;
}
static void iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
{
struct ioc *ioc = iocg->ioc;
struct blkcg_gq *blkg = iocg_to_blkg(iocg);
@ -1229,11 +1229,11 @@ static void iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
/* clear or maintain depending on the overage */
if (time_before_eq64(vtime, now->vnow)) {
blkcg_clear_delay(blkg);
return;
return false;
}
if (!atomic_read(&blkg->use_delay) &&
time_before_eq64(vtime, now->vnow + vmargin))
return;
return false;
/* use delay */
if (cost) {
@ -1250,10 +1250,11 @@ static void iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
oexpires = ktime_to_ns(hrtimer_get_softexpires(&iocg->delay_timer));
if (hrtimer_is_queued(&iocg->delay_timer) &&
abs(oexpires - expires) <= margin_ns / 4)
return;
return true;
hrtimer_start_range_ns(&iocg->delay_timer, ns_to_ktime(expires),
margin_ns / 4, HRTIMER_MODE_ABS);
return true;
}
static enum hrtimer_restart iocg_delay_timer_fn(struct hrtimer *timer)
@ -1739,7 +1740,9 @@ static void ioc_rqos_throttle(struct rq_qos *rqos, struct bio *bio)
*/
if (bio_issue_as_root_blkg(bio) || fatal_signal_pending(current)) {
atomic64_add(abs_cost, &iocg->abs_vdebt);
iocg_kick_delay(iocg, &now, cost);
if (iocg_kick_delay(iocg, &now, cost))
blkcg_schedule_throttle(rqos->q,
(bio->bi_opf & REQ_SWAP) == REQ_SWAP);
return;
}

2
block/blk-map.c
Просмотреть файл

@ -151,7 +151,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
return 0;
unmap_rq:
__blk_rq_unmap_user(bio);
blk_rq_unmap_user(bio);
fail:
rq->bio = NULL;
return ret;

1
block/blk.h
Просмотреть файл

@ -30,6 +30,7 @@ struct blk_flush_queue {
* at the same time
*/
struct request *orig_rq;
struct lock_class_key key;
spinlock_t mq_flush_lock;
};

2
block/bsg-lib.c
Просмотреть файл

@ -266,7 +266,7 @@ static blk_status_t bsg_queue_rq(struct blk_mq_hw_ctx *hctx,
struct request *req = bd->rq;
struct bsg_set *bset =
container_of(q->tag_set, struct bsg_set, tag_set);
int sts = BLK_STS_IOERR;
blk_status_t sts = BLK_STS_IOERR;
int ret;
blk_mq_start_request(req);

16
block/compat_ioctl.c
Просмотреть файл

@ -6,6 +6,7 @@
#include <linux/compat.h>
#include <linux/elevator.h>
#include <linux/hdreg.h>
#include <linux/pr.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
#include <linux/types.h>
@ -354,6 +355,13 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
* but we call blkdev_ioctl, which gets the lock for us
*/
case BLKRRPART:
case BLKREPORTZONE:
case BLKRESETZONE:
case BLKOPENZONE:
case BLKCLOSEZONE:
case BLKFINISHZONE:
case BLKGETZONESZ:
case BLKGETNRZONES:
return blkdev_ioctl(bdev, mode, cmd,
(unsigned long)compat_ptr(arg));
case BLKBSZSET_32:
@ -401,6 +409,14 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case BLKTRACETEARDOWN: /* compatible */
ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
return ret;
case IOC_PR_REGISTER:
case IOC_PR_RESERVE:
case IOC_PR_RELEASE:
case IOC_PR_PREEMPT:
case IOC_PR_PREEMPT_ABORT:
case IOC_PR_CLEAR:
return blkdev_ioctl(bdev, mode, cmd,
(unsigned long)compat_ptr(arg));
default:
if (disk->fops->compat_ioctl)
ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);

1
crypto/asymmetric_keys/asym_tpm.c
Просмотреть файл

@ -470,6 +470,7 @@ static int tpm_key_encrypt(struct tpm_key *tk,
if (ret < 0)
goto error_free_tfm;
ret = -ENOMEM;
req = akcipher_request_alloc(tfm, GFP_KERNEL);
if (!req)
goto error_free_tfm;

1
crypto/asymmetric_keys/public_key.c
Просмотреть файл

@ -184,6 +184,7 @@ static int software_key_eds_op(struct kernel_pkey_params *params,
if (IS_ERR(tfm))
return PTR_ERR(tfm);
ret = -ENOMEM;
req = akcipher_request_alloc(tfm, GFP_KERNEL);
if (!req)
goto error_free_tfm;

135
drivers/ata/ahci_brcm.c
Просмотреть файл

@ -76,8 +76,7 @@ enum brcm_ahci_version {
};
enum brcm_ahci_quirks {
BRCM_AHCI_QUIRK_NO_NCQ = BIT(0),
BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE = BIT(1),
BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE = BIT(0),
};
struct brcm_ahci_priv {
@ -213,19 +212,12 @@ static void brcm_sata_phys_disable(struct brcm_ahci_priv *priv)
brcm_sata_phy_disable(priv, i);
}
static u32 brcm_ahci_get_portmask(struct platform_device *pdev,
static u32 brcm_ahci_get_portmask(struct ahci_host_priv *hpriv,
struct brcm_ahci_priv *priv)
{
void __iomem *ahci;
struct resource *res;
u32 impl;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ahci");
ahci = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ahci))
return 0;
impl = readl(ahci + HOST_PORTS_IMPL);
impl = readl(hpriv->mmio + HOST_PORTS_IMPL);
if (fls(impl) > SATA_TOP_MAX_PHYS)
dev_warn(priv->dev, "warning: more ports than PHYs (%#x)\n",
@ -233,9 +225,6 @@ static u32 brcm_ahci_get_portmask(struct platform_device *pdev,
else if (!impl)
dev_info(priv->dev, "no ports found\n");
devm_iounmap(&pdev->dev, ahci);
devm_release_mem_region(&pdev->dev, res->start, resource_size(res));
return impl;
}
@ -285,6 +274,13 @@ static unsigned int brcm_ahci_read_id(struct ata_device *dev,
/* Perform the SATA PHY reset sequence */
brcm_sata_phy_disable(priv, ap->port_no);
/* Reset the SATA clock */
ahci_platform_disable_clks(hpriv);
msleep(10);
ahci_platform_enable_clks(hpriv);
msleep(10);
/* Bring the PHY back on */
brcm_sata_phy_enable(priv, ap->port_no);
@ -347,11 +343,10 @@ static int brcm_ahci_suspend(struct device *dev)
struct ata_host *host = dev_get_drvdata(dev);
struct ahci_host_priv *hpriv = host->private_data;
struct brcm_ahci_priv *priv = hpriv->plat_data;
int ret;
ret = ahci_platform_suspend(dev);
brcm_sata_phys_disable(priv);
return ret;
return ahci_platform_suspend(dev);
}
static int brcm_ahci_resume(struct device *dev)
@ -359,11 +354,44 @@ static int brcm_ahci_resume(struct device *dev)
struct ata_host *host = dev_get_drvdata(dev);
struct ahci_host_priv *hpriv = host->private_data;
struct brcm_ahci_priv *priv = hpriv->plat_data;
int ret;
/* Make sure clocks are turned on before re-configuration */
ret = ahci_platform_enable_clks(hpriv);
if (ret)
return ret;
brcm_sata_init(priv);
brcm_sata_phys_enable(priv);
brcm_sata_alpm_init(hpriv);
return ahci_platform_resume(dev);
/* Since we had to enable clocks earlier on, we cannot use
* ahci_platform_resume() as-is since a second call to
* ahci_platform_enable_resources() would bump up the resources
* (regulators, clocks, PHYs) count artificially so we copy the part
* after ahci_platform_enable_resources().
*/
ret = ahci_platform_enable_phys(hpriv);
if (ret)
goto out_disable_phys;
ret = ahci_platform_resume_host(dev);
if (ret)
goto out_disable_platform_phys;
/* We resumed so update PM runtime state */
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
return 0;
out_disable_platform_phys:
ahci_platform_disable_phys(hpriv);
out_disable_phys:
brcm_sata_phys_disable(priv);
ahci_platform_disable_clks(hpriv);
return ret;
}
#endif
@ -410,44 +438,71 @@ static int brcm_ahci_probe(struct platform_device *pdev)
if (!IS_ERR_OR_NULL(priv->rcdev))
reset_control_deassert(priv->rcdev);
if ((priv->version == BRCM_SATA_BCM7425) ||
(priv->version == BRCM_SATA_NSP)) {
priv->quirks |= BRCM_AHCI_QUIRK_NO_NCQ;
priv->quirks |= BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE;
hpriv = ahci_platform_get_resources(pdev, 0);
if (IS_ERR(hpriv)) {
ret = PTR_ERR(hpriv);
goto out_reset;
}
hpriv->plat_data = priv;
hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP | AHCI_HFLAG_NO_WRITE_TO_RO;
switch (priv->version) {
case BRCM_SATA_BCM7425:
hpriv->flags |= AHCI_HFLAG_DELAY_ENGINE;
/* fall through */
case BRCM_SATA_NSP:
hpriv->flags |= AHCI_HFLAG_NO_NCQ;
priv->quirks |= BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE;
break;
default:
break;
}
ret = ahci_platform_enable_clks(hpriv);
if (ret)
goto out_reset;
/* Must be first so as to configure endianness including that
* of the standard AHCI register space.
*/
brcm_sata_init(priv);
priv->port_mask = brcm_ahci_get_portmask(pdev, priv);
if (!priv->port_mask)
return -ENODEV;
/* Initializes priv->port_mask which is used below */
priv->port_mask = brcm_ahci_get_portmask(hpriv, priv);
if (!priv->port_mask) {
ret = -ENODEV;
goto out_disable_clks;
}
/* Must be done before ahci_platform_enable_phys() */
brcm_sata_phys_enable(priv);
hpriv = ahci_platform_get_resources(pdev, 0);
if (IS_ERR(hpriv))
return PTR_ERR(hpriv);
hpriv->plat_data = priv;
hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP;
brcm_sata_alpm_init(hpriv);
ret = ahci_platform_enable_resources(hpriv);
ret = ahci_platform_enable_phys(hpriv);
if (ret)
return ret;
if (priv->quirks & BRCM_AHCI_QUIRK_NO_NCQ)
hpriv->flags |= AHCI_HFLAG_NO_NCQ;
hpriv->flags |= AHCI_HFLAG_NO_WRITE_TO_RO;
goto out_disable_phys;
ret = ahci_platform_init_host(pdev, hpriv, &ahci_brcm_port_info,
&ahci_platform_sht);
if (ret)
return ret;
goto out_disable_platform_phys;
dev_info(dev, "Broadcom AHCI SATA3 registered\n");
return 0;
out_disable_platform_phys:
ahci_platform_disable_phys(hpriv);
out_disable_phys:
brcm_sata_phys_disable(priv);
out_disable_clks:
ahci_platform_disable_clks(hpriv);
out_reset:
if (!IS_ERR_OR_NULL(priv->rcdev))
reset_control_assert(priv->rcdev);
return ret;
}
static int brcm_ahci_remove(struct platform_device *pdev)
@ -457,12 +512,12 @@ static int brcm_ahci_remove(struct platform_device *pdev)
struct brcm_ahci_priv *priv = hpriv->plat_data;
int ret;
brcm_sata_phys_disable(priv);
ret = ata_platform_remove_one(pdev);
if (ret)
return ret;
brcm_sata_phys_disable(priv);
return 0;
}

6
drivers/ata/libahci_platform.c
Просмотреть файл

@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(ahci_platform_ops);
* RETURNS:
* 0 on success otherwise a negative error code
*/
static int ahci_platform_enable_phys(struct ahci_host_priv *hpriv)
int ahci_platform_enable_phys(struct ahci_host_priv *hpriv)
{
int rc, i;
@ -74,6 +74,7 @@ disable_phys:
}
return rc;
}
EXPORT_SYMBOL_GPL(ahci_platform_enable_phys);
/**
* ahci_platform_disable_phys - Disable PHYs
@ -81,7 +82,7 @@ disable_phys:
*
* This function disables all PHYs found in hpriv->phys.
*/
static void ahci_platform_disable_phys(struct ahci_host_priv *hpriv)
void ahci_platform_disable_phys(struct ahci_host_priv *hpriv)
{
int i;
@ -90,6 +91,7 @@ static void ahci_platform_disable_phys(struct ahci_host_priv *hpriv)
phy_exit(hpriv->phys[i]);
}
}
EXPORT_SYMBOL_GPL(ahci_platform_disable_phys);
/**
* ahci_platform_enable_clks - Enable platform clocks

24
drivers/ata/libata-core.c
Просмотреть файл

@ -5328,6 +5328,30 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
}
}
/**
* ata_qc_get_active - get bitmask of active qcs
* @ap: port in question
*
* LOCKING:
* spin_lock_irqsave(host lock)
*
* RETURNS:
* Bitmask of active qcs
*/
u64 ata_qc_get_active(struct ata_port *ap)
{
u64 qc_active = ap->qc_active;
/* ATA_TAG_INTERNAL is sent to hw as tag 0 */
if (qc_active & (1ULL << ATA_TAG_INTERNAL)) {
qc_active |= (1 << 0);
qc_active &= ~(1ULL << ATA_TAG_INTERNAL);
}
return qc_active;
}
EXPORT_SYMBOL_GPL(ata_qc_get_active);
/**
* ata_qc_complete_multiple - Complete multiple qcs successfully
* @ap: port in question

2
drivers/ata/sata_fsl.c
Просмотреть файл

@ -1280,7 +1280,7 @@ static void sata_fsl_host_intr(struct ata_port *ap)
i, ioread32(hcr_base + CC),
ioread32(hcr_base + CA));
}
ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
return;
} else if ((ap->qc_active & (1ULL << ATA_TAG_INTERNAL))) {

2
drivers/ata/sata_mv.c
Просмотреть файл

@ -2829,7 +2829,7 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp
}
if (work_done) {
ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
/* Update the software queue position index in hardware */
writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) |

2
drivers/ata/sata_nv.c
Просмотреть файл

@ -984,7 +984,7 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
check_commands = 0;
check_commands &= ~(1 << pos);
}
ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
}
}

38
drivers/base/power/domain.c
Просмотреть файл

@ -2302,6 +2302,44 @@ out:
}
EXPORT_SYMBOL_GPL(of_genpd_add_subdomain);
/**
* of_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
* @parent_spec: OF phandle args to use for parent PM domain look-up
* @subdomain_spec: OF phandle args to use for subdomain look-up
*
* Looks-up a parent PM domain and subdomain based upon phandle args
* provided and removes the subdomain from the parent PM domain. Returns a
* negative error code on failure.
*/
int of_genpd_remove_subdomain(struct of_phandle_args *parent_spec,
struct of_phandle_args *subdomain_spec)
{
struct generic_pm_domain *parent, *subdomain;
int ret;
mutex_lock(&gpd_list_lock);
parent = genpd_get_from_provider(parent_spec);
if (IS_ERR(parent)) {
ret = PTR_ERR(parent);
goto out;
}
subdomain = genpd_get_from_provider(subdomain_spec);
if (IS_ERR(subdomain)) {
ret = PTR_ERR(subdomain);
goto out;
}
ret = pm_genpd_remove_subdomain(parent, subdomain);
out:
mutex_unlock(&gpd_list_lock);
return ret;
}
EXPORT_SYMBOL_GPL(of_genpd_remove_subdomain);
/**
* of_genpd_remove_last - Remove the last PM domain registered for a provider
* @provider: Pointer to device structure associated with provider

6
drivers/block/nbd.c
Просмотреть файл

@ -1296,10 +1296,10 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b
mutex_unlock(&nbd->config_lock);
ret = wait_event_interruptible(config->recv_wq,
atomic_read(&config->recv_threads) == 0);
if (ret) {
if (ret)
sock_shutdown(nbd);
flush_workqueue(nbd->recv_workq);
}
flush_workqueue(nbd->recv_workq);
mutex_lock(&nbd->config_lock);
nbd_bdev_reset(bdev);
/* user requested, ignore socket errors */

2
drivers/block/pktcdvd.c
Просмотреть файл

@ -2707,7 +2707,7 @@ static const struct block_device_operations pktcdvd_ops = {
.release = pkt_close,
.ioctl = pkt_ioctl,
#ifdef CONFIG_COMPAT
.ioctl = pkt_compat_ioctl,
.compat_ioctl = pkt_compat_ioctl,
#endif
.check_events = pkt_check_events,
};

56
drivers/block/xen-blkback/xenbus.c
Просмотреть файл

@ -190,6 +190,9 @@ static int xen_blkif_map(struct xen_blkif_ring *ring, grant_ref_t *gref,
{
int err;
struct xen_blkif *blkif = ring->blkif;
const struct blkif_common_sring *sring_common;
RING_IDX rsp_prod, req_prod;
unsigned int size;
/* Already connected through? */
if (ring->irq)
@ -200,46 +203,62 @@ static int xen_blkif_map(struct xen_blkif_ring *ring, grant_ref_t *gref,
if (err < 0)
return err;
sring_common = (struct blkif_common_sring *)ring->blk_ring;
rsp_prod = READ_ONCE(sring_common->rsp_prod);
req_prod = READ_ONCE(sring_common->req_prod);
switch (blkif->blk_protocol) {
case BLKIF_PROTOCOL_NATIVE:
{
struct blkif_sring *sring;
sring = (struct blkif_sring *)ring->blk_ring;
BACK_RING_INIT(&ring->blk_rings.native, sring,
XEN_PAGE_SIZE * nr_grefs);
struct blkif_sring *sring_native =
(struct blkif_sring *)ring->blk_ring;
BACK_RING_ATTACH(&ring->blk_rings.native, sring_native,
rsp_prod, XEN_PAGE_SIZE * nr_grefs);
size = __RING_SIZE(sring_native, XEN_PAGE_SIZE * nr_grefs);
break;
}
case BLKIF_PROTOCOL_X86_32:
{
struct blkif_x86_32_sring *sring_x86_32;
sring_x86_32 = (struct blkif_x86_32_sring *)ring->blk_ring;
BACK_RING_INIT(&ring->blk_rings.x86_32, sring_x86_32,
XEN_PAGE_SIZE * nr_grefs);
struct blkif_x86_32_sring *sring_x86_32 =
(struct blkif_x86_32_sring *)ring->blk_ring;
BACK_RING_ATTACH(&ring->blk_rings.x86_32, sring_x86_32,
rsp_prod, XEN_PAGE_SIZE * nr_grefs);
size = __RING_SIZE(sring_x86_32, XEN_PAGE_SIZE * nr_grefs);
break;
}
case BLKIF_PROTOCOL_X86_64:
{
struct blkif_x86_64_sring *sring_x86_64;
sring_x86_64 = (struct blkif_x86_64_sring *)ring->blk_ring;
BACK_RING_INIT(&ring->blk_rings.x86_64, sring_x86_64,
XEN_PAGE_SIZE * nr_grefs);
struct blkif_x86_64_sring *sring_x86_64 =
(struct blkif_x86_64_sring *)ring->blk_ring;
BACK_RING_ATTACH(&ring->blk_rings.x86_64, sring_x86_64,
rsp_prod, XEN_PAGE_SIZE * nr_grefs);
size = __RING_SIZE(sring_x86_64, XEN_PAGE_SIZE * nr_grefs);
break;
}
default:
BUG();
}
err = -EIO;
if (req_prod - rsp_prod > size)
goto fail;
err = bind_interdomain_evtchn_to_irqhandler(blkif->domid, evtchn,
xen_blkif_be_int, 0,
"blkif-backend", ring);
if (err < 0) {
xenbus_unmap_ring_vfree(blkif->be->dev, ring->blk_ring);
ring->blk_rings.common.sring = NULL;
return err;
}
if (err < 0)
goto fail;
ring->irq = err;
return 0;
fail:
xenbus_unmap_ring_vfree(blkif->be->dev, ring->blk_ring);
ring->blk_rings.common.sring = NULL;
return err;
}
static int xen_blkif_disconnect(struct xen_blkif *blkif)
@ -1131,7 +1150,8 @@ static struct xenbus_driver xen_blkbk_driver = {
.ids = xen_blkbk_ids,
.probe = xen_blkbk_probe,
.remove = xen_blkbk_remove,
.otherend_changed = frontend_changed
.otherend_changed = frontend_changed,
.allow_rebind = true,
};
int xen_blkif_xenbus_init(void)

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