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Merge 6.3-rc3 into char-misc-next

Browse Source 
We need the mainline fixes in this branch for testing and other
subsystem changes to be based properly on.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-03-20 09:06:37 +01:00
commit abae262640
830 changed files with 8359 additions and 56459 deletions
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1
.gitignore vendored
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@ -78,6 +78,7 @@ modules.order
# RPM spec file (make rpm-pkg)
#
/*.spec
/rpmbuild/
#
# Debian directory (make deb-pkg)

17
.mailmap
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@ -28,6 +28,7 @@ Alexander Lobakin <alobakin@pm.me> <bloodyreaper@yandex.ru>
Alexander Mikhalitsyn <alexander@mihalicyn.com> <alexander.mikhalitsyn@virtuozzo.com>
Alexander Mikhalitsyn <alexander@mihalicyn.com> <aleksandr.mikhalitsyn@canonical.com>
Alexandre Belloni <alexandre.belloni@bootlin.com> <alexandre.belloni@free-electrons.com>
Alexandre Ghiti <alex@ghiti.fr> <alexandre.ghiti@canonical.com>
Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>
Alexei Starovoitov <ast@kernel.org> <ast@fb.com>
Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com>
@ -121,7 +122,7 @@ Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@gmail.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@imgtec.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@mips.com>
<dev.kurt@vandijck-laurijssen.be> <kurt.van.dijck@eia.be>
Dikshita Agarwal <dikshita@qti.qualcomm.com> <dikshita@codeaurora.org>
Dikshita Agarwal <quic_dikshita@quicinc.com> <dikshita@codeaurora.org>
Dmitry Baryshkov <dbaryshkov@gmail.com>
Dmitry Baryshkov <dbaryshkov@gmail.com> <[dbaryshkov@gmail.com]>
Dmitry Baryshkov <dbaryshkov@gmail.com> <dmitry_baryshkov@mentor.com>
@ -136,6 +137,9 @@ Erik Kaneda <erik.kaneda@intel.com> <erik.schmauss@intel.com>
Eugen Hristev <eugen.hristev@collabora.com> <eugen.hristev@microchip.com>
Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> <ezequiel@collabora.com>
Faith Ekstrand <faith.ekstrand@collabora.com> <jason@jlekstrand.net>
Faith Ekstrand <faith.ekstrand@collabora.com> <jason.ekstrand@intel.com>
Faith Ekstrand <faith.ekstrand@collabora.com> <jason.ekstrand@collabora.com>
Felipe W Damasio <felipewd@terra.com.br>
Felix Kuhling <fxkuehl@gmx.de>
Felix Moeller <felix@derklecks.de>
@ -191,6 +195,7 @@ Jan Glauber <jan.glauber@gmail.com> <jang@linux.vnet.ibm.com>
Jan Glauber <jan.glauber@gmail.com> <jglauber@cavium.com>
Jarkko Sakkinen <jarkko@kernel.org> <jarkko.sakkinen@linux.intel.com>
Jarkko Sakkinen <jarkko@kernel.org> <jarkko@profian.com>
Jarkko Sakkinen <jarkko@kernel.org> <jarkko.sakkinen@tuni.fi>
Jason Gunthorpe <jgg@ziepe.ca> <jgg@mellanox.com>
Jason Gunthorpe <jgg@ziepe.ca> <jgg@nvidia.com>
Jason Gunthorpe <jgg@ziepe.ca> <jgunthorpe@obsidianresearch.com>
@ -210,6 +215,9 @@ Jens Axboe <axboe@suse.de>
Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Jernej Skrabec <jernej.skrabec@gmail.com> <jernej.skrabec@siol.net>
Jessica Zhang <quic_jesszhan@quicinc.com> <jesszhan@codeaurora.org>
Jiri Pirko <jiri@resnulli.us> <jiri@nvidia.com>
Jiri Pirko <jiri@resnulli.us> <jiri@mellanox.com>
Jiri Pirko <jiri@resnulli.us> <jpirko@redhat.com>
Jiri Slaby <jirislaby@kernel.org> <jirislaby@gmail.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@novell.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@suse.com>
@ -306,6 +314,8 @@ Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@osg.samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@redhat.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <m.chehab@samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
Maxim Mikityanskiy <maxtram95@gmail.com> <maximmi@mellanox.com>
Maxim Mikityanskiy <maxtram95@gmail.com> <maximmi@nvidia.com>
Maxime Ripard <mripard@kernel.org> <maxime.ripard@bootlin.com>
Maxime Ripard <mripard@kernel.org> <maxime.ripard@free-electrons.com>
Mayuresh Janorkar <mayur@ti.com>
@ -411,7 +421,10 @@ Shuah Khan <shuah@kernel.org> <shuah.kh@samsung.com>
Simon Arlott <simon@octiron.net> <simon@fire.lp0.eu>
Simon Kelley <simon@thekelleys.org.uk>
Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
Stephen Hemminger <shemminger@osdl.org>
Stephen Hemminger <stephen@networkplumber.org> <shemminger@linux-foundation.org>
Stephen Hemminger <stephen@networkplumber.org> <shemminger@osdl.org>
Stephen Hemminger <stephen@networkplumber.org> <sthemmin@microsoft.com>
Stephen Hemminger <stephen@networkplumber.org> <sthemmin@vyatta.com>
Steve Wise <larrystevenwise@gmail.com> <swise@chelsio.com>
Steve Wise <larrystevenwise@gmail.com> <swise@opengridcomputing.com>
Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>

9
Documentation/ABI/stable/sysfs-block
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@ -705,6 +705,15 @@ Description:
zoned will report "none".
What: /sys/block/<disk>/hidden
Date: March 2023
Contact: linux-block@vger.kernel.org
Description:
[RO] the block device is hidden. it doesn’t produce events, and
can’t be opened from userspace or using blkdev_get*.
Used for the underlying components of multipath devices.
What: /sys/block/<disk>/stat
Date: February 2008
Contact: Jerome Marchand <jmarchan@redhat.com>

14
Documentation/bpf/bpf_devel_QA.rst
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@ -7,8 +7,8 @@ workflows related to reporting bugs, submitting patches, and queueing
patches for stable kernels.
For general information about submitting patches, please refer to
`Documentation/process/`_. This document only describes additional specifics
related to BPF.
Documentation/process/submitting-patches.rst. This document only describes
additional specifics related to BPF.
.. contents::
:local:
@ -461,15 +461,15 @@ needed::
$ sudo make run_tests
See the kernels selftest `Documentation/dev-tools/kselftest.rst`_
document for further documentation.
See :doc:`kernel selftest documentation </dev-tools/kselftest>`
for details.
To maximize the number of tests passing, the .config of the kernel
under test should match the config file fragment in
tools/testing/selftests/bpf as closely as possible.
Finally to ensure support for latest BPF Type Format features -
discussed in `Documentation/bpf/btf.rst`_ - pahole version 1.16
discussed in Documentation/bpf/btf.rst - pahole version 1.16
is required for kernels built with CONFIG_DEBUG_INFO_BTF=y.
pahole is delivered in the dwarves package or can be built
from source at
@ -684,12 +684,8 @@ when:
.. Links
.. _Documentation/process/: https://www.kernel.org/doc/html/latest/process/
.. _netdev-FAQ: Documentation/process/maintainer-netdev.rst
.. _selftests:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/testing/selftests/bpf/
.. _Documentation/dev-tools/kselftest.rst:
https://www.kernel.org/doc/html/latest/dev-tools/kselftest.html
.. _Documentation/bpf/btf.rst: btf.rst
Happy BPF hacking!

2
Documentation/driver-api/vfio.rst
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@ -242,7 +242,7 @@ group and can access them as follows::
VFIO User API
-------------------------------------------------------------------------------
Please see include/linux/vfio.h for complete API documentation.
Please see include/uapi/linux/vfio.h for complete API documentation.
VFIO bus driver API
-------------------------------------------------------------------------------

6
Documentation/filesystems/ext4/blockgroup.rst
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@ -105,9 +105,9 @@ descriptors. Instead, the superblock and a single block group descriptor
block is placed at the beginning of the first, second, and last block
groups in a meta-block group. A meta-block group is a collection of
block groups which can be described by a single block group descriptor
block. Since the size of the block group descriptor structure is 32
bytes, a meta-block group contains 32 block groups for filesystems with
a 1KB block size, and 128 block groups for filesystems with a 4KB
block. Since the size of the block group descriptor structure is 64
bytes, a meta-block group contains 16 block groups for filesystems with
a 1KB block size, and 64 block groups for filesystems with a 4KB
blocksize. Filesystems can either be created using this new block group
descriptor layout, or existing filesystems can be resized on-line, and
the field s_first_meta_bg in the superblock will indicate the first

2
Documentation/filesystems/vfs.rst
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@ -1222,7 +1222,7 @@ defined:
return
-ECHILD and it will be called again in ref-walk mode.
``_weak_revalidate``
``d_weak_revalidate``
called when the VFS needs to revalidate a "jumped" dentry. This
is called when a path-walk ends at dentry that was not acquired
by doing a lookup in the parent directory. This includes "/",

2
Documentation/firmware-guide/acpi/enumeration.rst
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@ -19,7 +19,7 @@ possible we decided to do following:
platform devices.
- Devices behind real busses where there is a connector resource
are represented as struct spi_device or struct i2c_device. Note
are represented as struct spi_device or struct i2c_client. Note
that standard UARTs are not busses so there is no struct uart_device,
although some of them may be represented by struct serdev_device.

6
Documentation/maintainer/rebasing-and-merging.rst
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@ -213,11 +213,7 @@ point rather than some random spot. If your upstream-bound branch has
emptied entirely into the mainline during the merge window, you can pull it
forward with a command like::
git merge v5.2-rc1^0
The "^0" will cause Git to do a fast-forward merge (which should be
possible in this situation), thus avoiding the addition of a spurious merge
commit.
git merge --ff-only v5.2-rc1
The guidelines laid out above are just that: guidelines. There will always
be situations that call out for a different solution, and these guidelines

8
Documentation/mm/hugetlbfs_reserv.rst
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@ -5,10 +5,10 @@ Hugetlbfs Reservation
Overview
========
Huge pages as described at Documentation/mm/hugetlbpage.rst are typically
preallocated for application use. These huge pages are instantiated in a
task's address space at page fault time if the VMA indicates huge pages are
to be used. If no huge page exists at page fault time, the task is sent
Huge pages as described at Documentation/admin-guide/mm/hugetlbpage.rst are
typically preallocated for application use. These huge pages are instantiated
in a task's address space at page fault time if the VMA indicates huge pages
are to be used. If no huge page exists at page fault time, the task is sent
a SIGBUS and often dies an unhappy death. Shortly after huge page support
was added, it was determined that it would be better to detect a shortage
of huge pages at mmap() time. The idea is that if there were not enough

2
Documentation/mm/physical_memory.rst
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@ -66,7 +66,7 @@ one of the types described below.
also populated on boot using one of ``kernelcore``, ``movablecore`` and
``movable_node`` kernel command line parameters. See
Documentation/mm/page_migration.rst and
Documentation/admin-guide/mm/memory_hotplug.rst for additional details.
Documentation/admin-guide/mm/memory-hotplug.rst for additional details.
* ``ZONE_DEVICE`` represents memory residing on devices such as PMEM and GPU.
It has different characteristics than RAM zone types and it exists to provide

2
Documentation/netlink/genetlink-c.yaml
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@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
%YAML 1.2
---
$id: http://kernel.org/schemas/netlink/genetlink-c.yaml#

2
Documentation/netlink/genetlink-legacy.yaml
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@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
%YAML 1.2
---
$id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#

2
Documentation/netlink/genetlink.yaml
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@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
%YAML 1.2
---
$id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#

17
Documentation/netlink/specs/ethtool.yaml
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@ -1,3 +1,5 @@
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
name: ethtool
protocol: genetlink-legacy
@ -11,7 +13,6 @@ attribute-sets:
-
name: dev-index
type: u32
value: 1
-
name: dev-name
type: string
@ -25,7 +26,6 @@ attribute-sets:
-
name: index
type: u32
value: 1
-
name: name
type: string
@ -39,14 +39,12 @@ attribute-sets:
name: bit
type: nest
nested-attributes: bitset-bit
value: 1
-
name: bitset
attributes:
-
name: nomask
type: flag
value: 1
-
name: size
type: u32
@ -61,7 +59,6 @@ attribute-sets:
-
name: index
type: u32
value: 1
-
name: value
type: string
@ -71,7 +68,6 @@ attribute-sets:
-
name: string
type: nest
value: 1
multi-attr: true
nested-attributes: string
-
@ -80,7 +76,6 @@ attribute-sets:
-
name: id
type: u32
value: 1
-
name: count
type: u32
@ -96,14 +91,12 @@ attribute-sets:
name: stringset
type: nest
multi-attr: true
value: 1
nested-attributes: stringset
-
name: strset
attributes:
-
name: header
value: 1
type: nest
nested-attributes: header
-
@ -119,7 +112,6 @@ attribute-sets:
attributes:
-
name: header
value: 1
type: nest
nested-attributes: header
-
@ -132,7 +124,6 @@ attribute-sets:
attributes:
-
name: header
value: 1
type: nest
nested-attributes: header
-
@ -180,7 +171,6 @@ attribute-sets:
attributes:
-
name: pad
value: 1
type: pad
-
name: reassembly-errors
@ -205,7 +195,6 @@ attribute-sets:
attributes:
-
name: header
value: 1
type: nest
nested-attributes: header
-
@ -251,13 +240,11 @@ operations:
do: &strset-get-op
request:
value: 1
attributes:
- header
- stringsets
- counts-only
reply:
value: 1
attributes:
- header
- stringsets

4
Documentation/netlink/specs/fou.yaml
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@ -1,3 +1,5 @@
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
name: fou
protocol: genetlink-legacy
@ -26,6 +28,7 @@ attribute-sets:
-
name: unspec
type: unused
value: 0
-
name: port
type: u16
@ -71,6 +74,7 @@ operations:
-
name: unspec
doc: unused
value: 0
-
name: add

5
Documentation/netlink/specs/netdev.yaml
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@ -1,3 +1,5 @@
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
name: netdev
doc:
@ -7,6 +9,7 @@ definitions:
-
type: flags
name: xdp-act
render-max: true
entries:
-
name: basic
@ -48,7 +51,6 @@ attribute-sets:
name: ifindex
doc: netdev ifindex
type: u32
value: 1
checks:
min: 1
-
@ -66,7 +68,6 @@ operations:
-
name: dev-get
doc: Get / dump information about a netdev.
value: 1
attribute-set: dev
do:
request:

24
Documentation/process/programming-language.rst
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@ -12,10 +12,6 @@ under ``-std=gnu11`` [gcc-c-dialect-options]_: the GNU dialect of ISO C11.
This dialect contains many extensions to the language [gnu-extensions]_,
and many of them are used within the kernel as a matter of course.
There is some support for compiling the kernel with ``icc`` [icc]_ for several
of the architectures, although at the time of writing it is not completed,
requiring third-party patches.
Attributes
----------
@ -35,12 +31,28 @@ in order to feature detect which ones can be used and/or to shorten the code.
Please refer to ``include/linux/compiler_attributes.h`` for more information.
Rust
----
The kernel has experimental support for the Rust programming language
[rust-language]_ under ``CONFIG_RUST``. It is compiled with ``rustc`` [rustc]_
under ``--edition=2021`` [rust-editions]_. Editions are a way to introduce
small changes to the language that are not backwards compatible.
On top of that, some unstable features [rust-unstable-features]_ are used in
the kernel. Unstable features may change in the future, thus it is an important
goal to reach a point where only stable features are used.
Please refer to Documentation/rust/index.rst for more information.
.. [c-language] http://www.open-std.org/jtc1/sc22/wg14/www/standards
.. [gcc] https://gcc.gnu.org
.. [clang] https://clang.llvm.org
.. [icc] https://software.intel.com/en-us/c-compilers
.. [gcc-c-dialect-options] https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html
.. [gnu-extensions] https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html
.. [gcc-attribute-syntax] https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html
.. [n2049] http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2049.pdf
.. [rust-language] https://www.rust-lang.org
.. [rustc] https://doc.rust-lang.org/rustc/
.. [rust-editions] https://doc.rust-lang.org/edition-guide/editions/
.. [rust-unstable-features] https://github.com/Rust-for-Linux/linux/issues/2

2
Documentation/process/submitting-patches.rst
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@ -320,7 +320,7 @@ for their time. Code review is a tiring and time-consuming process, and
reviewers sometimes get grumpy. Even in that case, though, respond
politely and address the problems they have pointed out. When sending a next
version, add a ``patch changelog`` to the cover letter or to individual patches
explaining difference aganst previous submission (see
explaining difference against previous submission (see
:ref:`the_canonical_patch_format`).
See Documentation/process/email-clients.rst for recommendations on email

2
Documentation/scheduler/sched-capacity.rst
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@ -258,7 +258,7 @@ Linux cannot currently figure out CPU capacity on its own, this information thus
needs to be handed to it. Architectures must define arch_scale_cpu_capacity()
for that purpose.
The arm and arm64 architectures directly map this to the arch_topology driver
The arm, arm64, and RISC-V architectures directly map this to the arch_topology driver
CPU scaling data, which is derived from the capacity-dmips-mhz CPU binding; see
Documentation/devicetree/bindings/cpu/cpu-capacity.txt.

3
Documentation/translations/zh_CN/mm/hugetlbfs_reserv.rst
View File

@ -15,7 +15,8 @@ Hugetlbfs 预留
概述
====
Documentation/mm/hugetlbpage.rst 中描述的巨页通常是预先分配给应用程序使用的。如果VMA指
Documentation/admin-guide/mm/hugetlbpage.rst
中描述的巨页通常是预先分配给应用程序使用的 。如果VMA指
示要使用巨页，这些巨页会在缺页异常时被实例化到任务的地址空间。如果在缺页异常
时没有巨页存在，任务就会被发送一个SIGBUS，并经常不高兴地死去。在加入巨页支
持后不久，人们决定，在mmap()时检测巨页的短缺情况会更好。这个想法是，如果

2
Documentation/translations/zh_CN/scheduler/sched-capacity.rst
View File

@ -231,7 +231,7 @@ CFS调度类基于实体负载跟踪机制（Per-Entity Load Tracking, PELT）
当前，Linux无法凭自身算出CPU算力，因此必须要有把这个信息传递给Linux的方式。每个架构必须为此
定义arch_scale_cpu_capacity()函数。
arm和arm64架构直接把这个信息映射到arch_topology驱动的CPU scaling数据中（译注：参考
arm、arm64和RISC-V架构直接把这个信息映射到arch_topology驱动的CPU scaling数据中（译注：参考
arch_topology.h的percpu变量cpu_scale），它是从capacity-dmips-mhz CPU binding中衍生计算
出来的。参见Documentation/devicetree/bindings/cpu/cpu-capacity.txt。

14
Documentation/userspace-api/netlink/specs.rst
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@ -24,6 +24,10 @@ YAML specifications can be found under ``Documentation/netlink/specs/``
This document describes details of the schema.
See :doc:`intro-specs` for a practical starting guide.
All specs must be licensed under
``((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)``
to allow for easy adoption in user space code.
Compatibility levels
====================
@ -197,9 +201,15 @@ value
Numerical attribute ID, used in serialized Netlink messages.
The ``value`` property can be skipped, in which case the attribute ID
will be the value of the previous attribute plus one (recursively)
and ``0`` for the first attribute in the attribute set.
and ``1`` for the first attribute in the attribute set.
Note that the ``value`` of an attribute is defined only in its main set.
Attributes (and operations) use ``1`` as the default value for the first
entry (unlike enums in definitions which start from ``0``) because
entry ``0`` is almost always reserved as undefined. Spec can explicitly
set value to ``0`` if needed.
Note that the ``value`` of an attribute is defined only in its main set
(not in subsets).
enum
~~~~

32
MAINTAINERS
View File

@ -5971,7 +5971,7 @@ F: include/linux/dm-*.h
F: include/uapi/linux/dm-*.h
DEVLINK
M: Jiri Pirko <jiri@nvidia.com>
M: Jiri Pirko <jiri@resnulli.us>
L: netdev@vger.kernel.org
S: Supported
F: Documentation/networking/devlink
@ -9871,10 +9871,10 @@ M: Christian Brauner <brauner@kernel.org>
M: Seth Forshee <sforshee@kernel.org>
L: linux-fsdevel@vger.kernel.org
S: Maintained
T: git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping.git
F: Documentation/filesystems/idmappings.rst
F: tools/testing/selftests/mount_setattr/
F: include/linux/mnt_idmapping.*
F: tools/testing/selftests/mount_setattr/
IDT VersaClock 5 CLOCK DRIVER
M: Luca Ceresoli <luca@lucaceresoli.net>
@ -14872,12 +14872,12 @@ M: Sagi Grimberg <sagi@grimberg.me>
L: linux-nvme@lists.infradead.org
S: Supported
W: http://git.infradead.org/nvme.git
T: git://git.infradead.org/nvme.git
T: git git://git.infradead.org/nvme.git
F: Documentation/nvme/
F: drivers/nvme/host/
F: drivers/nvme/common/
F: include/linux/nvme.h
F: drivers/nvme/host/
F: include/linux/nvme-*.h
F: include/linux/nvme.h
F: include/uapi/linux/nvme_ioctl.h
NVM EXPRESS FABRICS AUTHENTICATION
@ -14912,7 +14912,7 @@ M: Chaitanya Kulkarni <kch@nvidia.com>
L: linux-nvme@lists.infradead.org
S: Supported
W: http://git.infradead.org/nvme.git
T: git://git.infradead.org/nvme.git
T: git git://git.infradead.org/nvme.git
F: drivers/nvme/target/
NVMEM FRAMEWORK
@ -15079,7 +15079,7 @@ F: Documentation/hwmon/nzxt-smart2.rst
F: drivers/hwmon/nzxt-smart2.c
OBJAGG
M: Jiri Pirko <jiri@nvidia.com>
M: Jiri Pirko <jiri@resnulli.us>
L: netdev@vger.kernel.org
S: Supported
F: include/linux/objagg.h
@ -15841,7 +15841,7 @@ F: drivers/video/logo/logo_parisc*
F: include/linux/hp_sdc.h
PARMAN
M: Jiri Pirko <jiri@nvidia.com>
M: Jiri Pirko <jiri@resnulli.us>
L: netdev@vger.kernel.org
S: Supported
F: include/linux/parman.h
@ -16379,6 +16379,7 @@ R: Alexander Shishkin <alexander.shishkin@linux.intel.com>
R: Jiri Olsa <jolsa@kernel.org>
R: Namhyung Kim <namhyung@kernel.org>
R: Ian Rogers <irogers@google.com>
R: Adrian Hunter <adrian.hunter@intel.com>
L: linux-perf-users@vger.kernel.org
L: linux-kernel@vger.kernel.org
S: Supported
@ -17977,7 +17978,7 @@ F: Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
F: Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
F: arch/riscv/boot/dts/microchip/
F: drivers/char/hw_random/mpfs-rng.c
F: drivers/clk/microchip/clk-mpfs.c
F: drivers/clk/microchip/clk-mpfs*.c
F: drivers/i2c/busses/i2c-microchip-corei2c.c
F: drivers/mailbox/mailbox-mpfs.c
F: drivers/pci/controller/pcie-microchip-host.c
@ -19132,9 +19133,7 @@ W: http://www.brownhat.org/sis900.html
F: drivers/net/ethernet/sis/sis900.*
SIS FRAMEBUFFER DRIVER
M: Thomas Winischhofer <thomas@winischhofer.net>
S: Maintained
W: http://www.winischhofer.net/linuxsisvga.shtml
S: Orphan
F: Documentation/fb/sisfb.rst
F: drivers/video/fbdev/sis/
F: include/video/sisfb.h
@ -19846,13 +19845,6 @@ S: Maintained
W: http://wiki.laptop.org/go/DCON
F: drivers/staging/olpc_dcon/
STAGING - REALTEK RTL8188EU DRIVERS
M: Larry Finger <Larry.Finger@lwfinger.net>
M: Phillip Potter <phil@philpotter.co.uk>
R: Pavel Skripkin <paskripkin@gmail.com>
S: Supported
F: drivers/staging/r8188eu/
STAGING - REALTEK RTL8712U DRIVERS
M: Larry Finger <Larry.Finger@lwfinger.net>
M: Florian Schilhabel <florian.c.schilhabel@googlemail.com>.

13
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 6
PATCHLEVEL = 3
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc3
NAME = Hurr durr I'ma ninja sloth
# *DOCUMENTATION*
@ -274,8 +274,7 @@ no-dot-config-targets := $(clean-targets) \
cscope gtags TAGS tags help% %docs check% coccicheck \
$(version_h) headers headers_% archheaders archscripts \
%asm-generic kernelversion %src-pkg dt_binding_check \
outputmakefile rustavailable rustfmt rustfmtcheck \
scripts_package
outputmakefile rustavailable rustfmt rustfmtcheck
# Installation targets should not require compiler. Unfortunately, vdso_install
# is an exception where build artifacts may be updated. This must be fixed.
no-compiler-targets := $(no-dot-config-targets) install dtbs_install \
@ -1605,7 +1604,7 @@ MRPROPER_FILES += include/config include/generated \
certs/signing_key.pem \
certs/x509.genkey \
vmlinux-gdb.py \
*.spec \
*.spec rpmbuild \
rust/libmacros.so
# clean - Delete most, but leave enough to build external modules
@ -1656,10 +1655,6 @@ distclean: mrproper
%pkg: include/config/kernel.release FORCE
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@
PHONY += scripts_package
scripts_package: scripts_basic
$(Q)$(MAKE) $(build)=scripts scripts/list-gitignored
# Brief documentation of the typical targets used
# ---------------------------------------------------------------------------
@ -1886,6 +1881,8 @@ endif
else # KBUILD_EXTMOD
filechk_kernel.release = echo $(KERNELRELEASE)
###
# External module support.
# When building external modules the kernel used as basis is considered

4
arch/alpha/lib/fpreg.c
View File

@ -23,7 +23,7 @@ alpha_read_fp_reg (unsigned long reg)
if (unlikely(reg >= 32))
return 0;
preempt_enable();
preempt_disable();
if (current_thread_info()->status & TS_SAVED_FP)
val = current_thread_info()->fp[reg];
else switch (reg) {
@ -133,7 +133,7 @@ alpha_read_fp_reg_s (unsigned long reg)
if (unlikely(reg >= 32))
return 0;
preempt_enable();
preempt_disable();
if (current_thread_info()->status & TS_SAVED_FP) {
LDT(0, current_thread_info()->fp[reg]);
STS(0, val);

3
arch/arm64/include/asm/kvm_host.h
View File

@ -193,6 +193,9 @@ struct kvm_arch {
/* Interrupt controller */
struct vgic_dist vgic;
/* Timers */
struct arch_timer_vm_data timer_data;
/* Mandated version of PSCI */
u32 psci_version;

45
arch/arm64/kvm/arch_timer.c
View File

@ -84,14 +84,10 @@ u64 timer_get_cval(struct arch_timer_context *ctxt)
static u64 timer_get_offset(struct arch_timer_context *ctxt)
{
struct kvm_vcpu *vcpu = ctxt->vcpu;
if (ctxt->offset.vm_offset)
return *ctxt->offset.vm_offset;
switch(arch_timer_ctx_index(ctxt)) {
case TIMER_VTIMER:
return __vcpu_sys_reg(vcpu, CNTVOFF_EL2);
default:
return 0;
}
return 0;
}
static void timer_set_ctl(struct arch_timer_context *ctxt, u32 ctl)
@ -128,15 +124,12 @@ static void timer_set_cval(struct arch_timer_context *ctxt, u64 cval)
static void timer_set_offset(struct arch_timer_context *ctxt, u64 offset)
{
struct kvm_vcpu *vcpu = ctxt->vcpu;
switch(arch_timer_ctx_index(ctxt)) {
case TIMER_VTIMER:
__vcpu_sys_reg(vcpu, CNTVOFF_EL2) = offset;
break;
default:
if (!ctxt->offset.vm_offset) {
WARN(offset, "timer %ld\n", arch_timer_ctx_index(ctxt));
return;
}
WRITE_ONCE(*ctxt->offset.vm_offset, offset);
}
u64 kvm_phys_timer_read(void)
@ -765,25 +758,6 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu)
return 0;
}
/* Make the updates of cntvoff for all vtimer contexts atomic */
static void update_vtimer_cntvoff(struct kvm_vcpu *vcpu, u64 cntvoff)
{
unsigned long i;
struct kvm *kvm = vcpu->kvm;
struct kvm_vcpu *tmp;
mutex_lock(&kvm->lock);
kvm_for_each_vcpu(i, tmp, kvm)
timer_set_offset(vcpu_vtimer(tmp), cntvoff);
/*
* When called from the vcpu create path, the CPU being created is not
* included in the loop above, so we just set it here as well.
*/
timer_set_offset(vcpu_vtimer(vcpu), cntvoff);
mutex_unlock(&kvm->lock);
}
void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
{
struct arch_timer_cpu *timer = vcpu_timer(vcpu);
@ -791,10 +765,11 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
struct arch_timer_context *ptimer = vcpu_ptimer(vcpu);
vtimer->vcpu = vcpu;
vtimer->offset.vm_offset = &vcpu->kvm->arch.timer_data.voffset;
ptimer->vcpu = vcpu;
/* Synchronize cntvoff across all vtimers of a VM. */
update_vtimer_cntvoff(vcpu, kvm_phys_timer_read());
timer_set_offset(vtimer, kvm_phys_timer_read());
timer_set_offset(ptimer, 0);
hrtimer_init(&timer->bg_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
@ -840,7 +815,7 @@ int kvm_arm_timer_set_reg(struct kvm_vcpu *vcpu, u64 regid, u64 value)
break;
case KVM_REG_ARM_TIMER_CNT:
timer = vcpu_vtimer(vcpu);
update_vtimer_cntvoff(vcpu, kvm_phys_timer_read() - value);
timer_set_offset(timer, kvm_phys_timer_read() - value);
break;
case KVM_REG_ARM_TIMER_CVAL:
timer = vcpu_vtimer(vcpu);

2
arch/arm64/kvm/hypercalls.c
View File

@ -44,7 +44,7 @@ static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val)
feature = smccc_get_arg1(vcpu);
switch (feature) {
case KVM_PTP_VIRT_COUNTER:
cycles = systime_snapshot.cycles - vcpu_read_sys_reg(vcpu, CNTVOFF_EL2);
cycles = systime_snapshot.cycles - vcpu->kvm->arch.timer_data.voffset;
break;
case KVM_PTP_PHYS_COUNTER:
cycles = systime_snapshot.cycles;

10
arch/m68k/kernel/setup_mm.c
View File

@ -326,16 +326,16 @@ void __init setup_arch(char **cmdline_p)
panic("No configuration setup");
}
#ifdef CONFIG_BLK_DEV_INITRD
if (m68k_ramdisk.size) {
if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && m68k_ramdisk.size)
memblock_reserve(m68k_ramdisk.addr, m68k_ramdisk.size);
paging_init();
if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && m68k_ramdisk.size) {
initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
initrd_end = initrd_start + m68k_ramdisk.size;
pr_info("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
}
#endif
paging_init();
#ifdef CONFIG_NATFEAT
nf_init();

4
arch/m68k/kernel/traps.c
View File

@ -30,6 +30,7 @@
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/kallsyms.h>
#include <linux/extable.h>
#include <asm/setup.h>
#include <asm/fpu.h>
@ -545,7 +546,8 @@ static inline void bus_error030 (struct frame *fp)
errorcode |= 2;
if (mmusr & (MMU_I | MMU_WP)) {
if (ssw & 4) {
/* We might have an exception table for this PC */
if (ssw & 4 && !search_exception_tables(fp->ptregs.pc)) {
pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n",
ssw & RW ? "read" : "write",
fp->un.fmtb.daddr,

10
arch/m68k/mm/motorola.c
View File

@ -437,7 +437,7 @@ void __init paging_init(void)
}
min_addr = m68k_memory[0].addr;
max_addr = min_addr + m68k_memory[0].size;
max_addr = min_addr + m68k_memory[0].size - 1;
memblock_add_node(m68k_memory[0].addr, m68k_memory[0].size, 0,
MEMBLOCK_NONE);
for (i = 1; i < m68k_num_memory;) {
@ -452,21 +452,21 @@ void __init paging_init(void)
}
memblock_add_node(m68k_memory[i].addr, m68k_memory[i].size, i,
MEMBLOCK_NONE);
addr = m68k_memory[i].addr + m68k_memory[i].size;
addr = m68k_memory[i].addr + m68k_memory[i].size - 1;
if (addr > max_addr)
max_addr = addr;
i++;
}
m68k_memoffset = min_addr - PAGE_OFFSET;
m68k_virt_to_node_shift = fls(max_addr - min_addr - 1) - 6;
m68k_virt_to_node_shift = fls(max_addr - min_addr) - 6;
module_fixup(NULL, __start_fixup, __stop_fixup);
flush_icache();
high_memory = phys_to_virt(max_addr);
high_memory = phys_to_virt(max_addr) + 1;
min_low_pfn = availmem >> PAGE_SHIFT;
max_pfn = max_low_pfn = max_addr >> PAGE_SHIFT;
max_pfn = max_low_pfn = (max_addr >> PAGE_SHIFT) + 1;
/* Reserve kernel text/data/bss and the memory allocated in head.S */
memblock_reserve(m68k_memory[0].addr, availmem - m68k_memory[0].addr);

1
arch/mips/configs/mtx1_defconfig
View File

@ -284,6 +284,7 @@ CONFIG_IXGB=m
CONFIG_SKGE=m
CONFIG_SKY2=m
CONFIG_MYRI10GE=m
CONFIG_FEALNX=m
CONFIG_NATSEMI=m
CONFIG_NS83820=m
CONFIG_S2IO=m

1
arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dts
View File

@ -10,7 +10,6 @@
/ {
model = "fsl,T1040RDB-REV-A";
compatible = "fsl,T1040RDB-REV-A";
};
&seville_port0 {

5
arch/powerpc/boot/dts/fsl/t1040rdb.dts
View File

@ -180,6 +180,9 @@
};
&seville_port8 {
ethernet = <&enet0>;
status = "okay";
};
&seville_port9 {
status = "okay";
};

2
arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
View File

@ -686,6 +686,7 @@
seville_port8: port@8 {
reg = <8>;
phy-mode = "internal";
ethernet = <&enet0>;
status = "disabled";
fixed-link {
@ -697,6 +698,7 @@
seville_port9: port@9 {
reg = <9>;
phy-mode = "internal";
ethernet = <&enet1>;
status = "disabled";
fixed-link {

1
arch/powerpc/configs/ppc6xx_defconfig
View File

@ -461,6 +461,7 @@ CONFIG_MV643XX_ETH=m
CONFIG_SKGE=m
CONFIG_SKY2=m
CONFIG_MYRI10GE=m
CONFIG_FEALNX=m
CONFIG_NATSEMI=m
CONFIG_NS83820=m
CONFIG_PCMCIA_AXNET=m

11
arch/powerpc/mm/fault.c
View File

@ -271,11 +271,16 @@ static bool access_error(bool is_write, bool is_exec, struct vm_area_struct *vma
}
/*
* Check for a read fault. This could be caused by a read on an
* inaccessible page (i.e. PROT_NONE), or a Radix MMU execute-only page.
* VM_READ, VM_WRITE and VM_EXEC all imply read permissions, as
* defined in protection_map[]. Read faults can only be caused by
* a PROT_NONE mapping, or with a PROT_EXEC-only mapping on Radix.
*/
if (unlikely(!(vma->vm_flags & VM_READ)))
if (unlikely(!vma_is_accessible(vma)))
return true;
if (unlikely(radix_enabled() && ((vma->vm_flags & VM_ACCESS_FLAGS) == VM_EXEC)))
return true;
/*
* We should ideally do the vma pkey access check here. But in the
* fault path, handle_mm_fault() also does the same check. To avoid

1
arch/powerpc/platforms/pseries/Kconfig
View File

@ -7,6 +7,7 @@ config PPC_PSERIES
select OF_DYNAMIC
select FORCE_PCI
select PCI_MSI
select GENERIC_ALLOCATOR
select PPC_XICS
select PPC_XIVE_SPAPR
select PPC_ICP_NATIVE

2
arch/powerpc/xmon/xmon.c
View File

@ -1275,7 +1275,7 @@ static int xmon_batch_next_cpu(void)
while (!cpumask_empty(&xmon_batch_cpus)) {
cpu = cpumask_next_wrap(smp_processor_id(), &xmon_batch_cpus,
xmon_batch_start_cpu, true);
if (cpu == nr_cpumask_bits)
if (cpu >= nr_cpu_ids)
break;
if (xmon_batch_start_cpu == -1)
xmon_batch_start_cpu = cpu;

7
arch/riscv/Makefile
View File

@ -84,6 +84,13 @@ endif
# Avoid generating .eh_frame sections.
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables -fno-unwind-tables
# The RISC-V attributes frequently cause compatibility issues and provide no
# information, so just turn them off.
KBUILD_CFLAGS += $(call cc-option,-mno-riscv-attribute)
KBUILD_AFLAGS += $(call cc-option,-mno-riscv-attribute)
KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mno-arch-attr)
KBUILD_AFLAGS += $(call as-option,-Wa$(comma)-mno-arch-attr)
KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax)
KBUILD_AFLAGS_MODULE += $(call as-option,-Wa$(comma)-mno-relax)

2
arch/riscv/errata/sifive/errata.c
View File

@ -111,7 +111,7 @@ void __init_or_module sifive_errata_patch_func(struct alt_entry *begin,
mutex_lock(&text_mutex);
patch_text_nosync(ALT_OLD_PTR(alt), ALT_ALT_PTR(alt),
alt->alt_len);
mutex_lock(&text_mutex);
mutex_unlock(&text_mutex);
cpu_apply_errata |= tmp;
}
}

2
arch/riscv/include/asm/ftrace.h
View File

@ -109,6 +109,6 @@ int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec);
#define ftrace_init_nop ftrace_init_nop
#endif
#endif
#endif /* CONFIG_DYNAMIC_FTRACE */
#endif /* _ASM_RISCV_FTRACE_H */

2
arch/riscv/include/asm/mmu.h
View File

@ -19,8 +19,6 @@ typedef struct {
#ifdef CONFIG_SMP
/* A local icache flush is needed before user execution can resume. */
cpumask_t icache_stale_mask;
/* A local tlb flush is needed before user execution can resume. */
cpumask_t tlb_stale_mask;
#endif
} mm_context_t;

2
arch/riscv/include/asm/patch.h
View File

@ -9,4 +9,6 @@
int patch_text_nosync(void *addr, const void *insns, size_t len);
int patch_text(void *addr, u32 *insns, int ninsns);
extern int riscv_patch_in_stop_machine;
#endif /* _ASM_RISCV_PATCH_H */

18
arch/riscv/include/asm/tlbflush.h
View File

@ -22,24 +22,6 @@ static inline void local_flush_tlb_page(unsigned long addr)
{
ALT_FLUSH_TLB_PAGE(__asm__ __volatile__ ("sfence.vma %0" : : "r" (addr) : "memory"));
}
static inline void local_flush_tlb_all_asid(unsigned long asid)
{
__asm__ __volatile__ ("sfence.vma x0, %0"
:
: "r" (asid)
: "memory");
}
static inline void local_flush_tlb_page_asid(unsigned long addr,
unsigned long asid)
{
__asm__ __volatile__ ("sfence.vma %0, %1"
:
: "r" (addr), "r" (asid)
: "memory");
}
#else /* CONFIG_MMU */
#define local_flush_tlb_all() do { } while (0)
#define local_flush_tlb_page(addr) do { } while (0)

4
arch/riscv/kernel/compat_vdso/Makefile
View File

@ -14,6 +14,10 @@ COMPAT_LD := $(LD)
COMPAT_CC_FLAGS := -march=rv32g -mabi=ilp32
COMPAT_LD_FLAGS := -melf32lriscv
# Disable attributes, as they're useless and break the build.
COMPAT_CC_FLAGS += $(call cc-option,-mno-riscv-attribute)
COMPAT_CC_FLAGS += $(call as-option,-Wa$(comma)-mno-arch-attr)
# Files to link into the compat_vdso
obj-compat_vdso = $(patsubst %, %.o, $(compat_vdso-syms)) note.o

13
arch/riscv/kernel/ftrace.c
View File

@ -15,10 +15,19 @@
void ftrace_arch_code_modify_prepare(void) __acquires(&text_mutex)
{
mutex_lock(&text_mutex);
/*
* The code sequences we use for ftrace can't be patched while the
* kernel is running, so we need to use stop_machine() to modify them
* for now. This doesn't play nice with text_mutex, we use this flag
* to elide the check.
*/
riscv_patch_in_stop_machine = true;
}
void ftrace_arch_code_modify_post_process(void) __releases(&text_mutex)
{
riscv_patch_in_stop_machine = false;
mutex_unlock(&text_mutex);
}
@ -107,9 +116,9 @@ int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec)
{
int out;
ftrace_arch_code_modify_prepare();
mutex_lock(&text_mutex);
out = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
ftrace_arch_code_modify_post_process();
mutex_unlock(&text_mutex);
return out;
}

28
arch/riscv/kernel/patch.c
View File

@ -11,6 +11,7 @@
#include <asm/kprobes.h>
#include <asm/cacheflush.h>
#include <asm/fixmap.h>
#include <asm/ftrace.h>
#include <asm/patch.h>
struct patch_insn {
@ -20,6 +21,8 @@ struct patch_insn {
atomic_t cpu_count;
};
int riscv_patch_in_stop_machine = false;
#ifdef CONFIG_MMU
/*
* The fix_to_virt(, idx) needs a const value (not a dynamic variable of
@ -60,8 +63,15 @@ static int patch_insn_write(void *addr, const void *insn, size_t len)
* Before reaching here, it was expected to lock the text_mutex
* already, so we don't need to give another lock here and could
* ensure that it was safe between each cores.
*
* We're currently using stop_machine() for ftrace & kprobes, and while
* that ensures text_mutex is held before installing the mappings it
* does not ensure text_mutex is held by the calling thread. That's
* safe but triggers a lockdep failure, so just elide it for that
* specific case.
*/
lockdep_assert_held(&text_mutex);
if (!riscv_patch_in_stop_machine)
lockdep_assert_held(&text_mutex);
if (across_pages)
patch_map(addr + len, FIX_TEXT_POKE1);
@ -125,6 +135,7 @@ NOKPROBE_SYMBOL(patch_text_cb);
int patch_text(void *addr, u32 *insns, int ninsns)
{
int ret;
struct patch_insn patch = {
.addr = addr,
.insns = insns,
@ -132,7 +143,18 @@ int patch_text(void *addr, u32 *insns, int ninsns)
.cpu_count = ATOMIC_INIT(0),
};
return stop_machine_cpuslocked(patch_text_cb,
&patch, cpu_online_mask);
/*
* kprobes takes text_mutex, before calling patch_text(), but as we call
* calls stop_machine(), the lockdep assertion in patch_insn_write()
* gets confused by the context in which the lock is taken.
* Instead, ensure the lock is held before calling stop_machine(), and
* set riscv_patch_in_stop_machine to skip the check in
* patch_insn_write().
*/
lockdep_assert_held(&text_mutex);
riscv_patch_in_stop_machine = true;
ret = stop_machine_cpuslocked(patch_text_cb, &patch, cpu_online_mask);
riscv_patch_in_stop_machine = false;
return ret;
}
NOKPROBE_SYMBOL(patch_text);

2
arch/riscv/kernel/stacktrace.c
View File

@ -101,7 +101,7 @@ void notrace walk_stackframe(struct task_struct *task,
while (!kstack_end(ksp)) {
if (__kernel_text_address(pc) && unlikely(!fn(arg, pc)))
break;
pc = (*ksp++) - 0x4;
pc = READ_ONCE_NOCHECK(*ksp++) - 0x4;
}
}

40
arch/riscv/mm/context.c
View File

@ -196,16 +196,6 @@ switch_mm_fast:
if (need_flush_tlb)
local_flush_tlb_all();
#ifdef CONFIG_SMP
else {
cpumask_t *mask = &mm->context.tlb_stale_mask;
if (cpumask_test_cpu(cpu, mask)) {
cpumask_clear_cpu(cpu, mask);
local_flush_tlb_all_asid(cntx & asid_mask);
}
}
#endif
}
static void set_mm_noasid(struct mm_struct *mm)
@ -215,12 +205,24 @@ static void set_mm_noasid(struct mm_struct *mm)
local_flush_tlb_all();
}
static inline void set_mm(struct mm_struct *mm, unsigned int cpu)
static inline void set_mm(struct mm_struct *prev,
struct mm_struct *next, unsigned int cpu)
{
if (static_branch_unlikely(&use_asid_allocator))
set_mm_asid(mm, cpu);
else
set_mm_noasid(mm);
/*
* The mm_cpumask indicates which harts' TLBs contain the virtual
* address mapping of the mm. Compared to noasid, using asid
* can't guarantee that stale TLB entries are invalidated because
* the asid mechanism wouldn't flush TLB for every switch_mm for
* performance. So when using asid, keep all CPUs footmarks in
* cpumask() until mm reset.
*/
cpumask_set_cpu(cpu, mm_cpumask(next));
if (static_branch_unlikely(&use_asid_allocator)) {
set_mm_asid(next, cpu);
} else {
cpumask_clear_cpu(cpu, mm_cpumask(prev));
set_mm_noasid(next);
}
}
static int __init asids_init(void)
@ -274,7 +276,8 @@ static int __init asids_init(void)
}
early_initcall(asids_init);
#else
static inline void set_mm(struct mm_struct *mm, unsigned int cpu)
static inline void set_mm(struct mm_struct *prev,
struct mm_struct *next, unsigned int cpu)
{
/* Nothing to do here when there is no MMU */
}
@ -327,10 +330,7 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next,
*/
cpu = smp_processor_id();
cpumask_clear_cpu(cpu, mm_cpumask(prev));
cpumask_set_cpu(cpu, mm_cpumask(next));
set_mm(next, cpu);
set_mm(prev, next, cpu);
flush_icache_deferred(next, cpu);
}

5
arch/riscv/mm/fault.c
View File

@ -143,6 +143,8 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
no_context(regs, addr);
return;
}
if (pud_leaf(*pud_k))
goto flush_tlb;
/*
* Since the vmalloc area is global, it is unnecessary
@ -153,6 +155,8 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
no_context(regs, addr);
return;
}
if (pmd_leaf(*pmd_k))
goto flush_tlb;
/*
* Make sure the actual PTE exists as well to
@ -172,6 +176,7 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
* ordering constraint, not a cache flush; it is
* necessary even after writing invalid entries.
*/
flush_tlb:
local_flush_tlb_page(addr);
}

28
arch/riscv/mm/tlbflush.c
View File

@ -5,7 +5,23 @@
#include <linux/sched.h>
#include <asm/sbi.h>
#include <asm/mmu_context.h>
#include <asm/tlbflush.h>
static inline void local_flush_tlb_all_asid(unsigned long asid)
{
__asm__ __volatile__ ("sfence.vma x0, %0"
:
: "r" (asid)
: "memory");
}
static inline void local_flush_tlb_page_asid(unsigned long addr,
unsigned long asid)
{
__asm__ __volatile__ ("sfence.vma %0, %1"
:
: "r" (addr), "r" (asid)
: "memory");
}
void flush_tlb_all(void)
{
@ -15,7 +31,6 @@ void flush_tlb_all(void)
static void __sbi_tlb_flush_range(struct mm_struct *mm, unsigned long start,
unsigned long size, unsigned long stride)
{
struct cpumask *pmask = &mm->context.tlb_stale_mask;
struct cpumask *cmask = mm_cpumask(mm);
unsigned int cpuid;
bool broadcast;
@ -29,15 +44,6 @@ static void __sbi_tlb_flush_range(struct mm_struct *mm, unsigned long start,
if (static_branch_unlikely(&use_asid_allocator)) {
unsigned long asid = atomic_long_read(&mm->context.id);
/*
* TLB will be immediately flushed on harts concurrently
* executing this MM context. TLB flush on other harts
* is deferred until this MM context migrates there.
*/
cpumask_setall(pmask);
cpumask_clear_cpu(cpuid, pmask);
cpumask_andnot(pmask, pmask, cmask);
if (broadcast) {
sbi_remote_sfence_vma_asid(cmask, start, size, asid);
} else if (size <= stride) {

1
arch/riscv/net/bpf_jit_comp64.c
View File

@ -10,6 +10,7 @@
#include <linux/filter.h>
#include <linux/memory.h>
#include <linux/stop_machine.h>
#include <asm/patch.h>
#include "bpf_jit.h"
#define RV_REG_TCC RV_REG_A6

8
arch/s390/boot/ipl_report.c
View File

@ -57,11 +57,19 @@ repeat:
if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_data.start && initrd_data.size &&
intersects(initrd_data.start, initrd_data.size, safe_addr, size))
safe_addr = initrd_data.start + initrd_data.size;
if (intersects(safe_addr, size, (unsigned long)comps, comps->len)) {
safe_addr = (unsigned long)comps + comps->len;
goto repeat;
}
for_each_rb_entry(comp, comps)
if (intersects(safe_addr, size, comp->addr, comp->len)) {
safe_addr = comp->addr + comp->len;
goto repeat;
}
if (intersects(safe_addr, size, (unsigned long)certs, certs->len)) {
safe_addr = (unsigned long)certs + certs->len;
goto repeat;
}
for_each_rb_entry(cert, certs)
if (intersects(safe_addr, size, cert->addr, cert->len)) {
safe_addr = cert->addr + cert->len;

13
arch/s390/configs/debug_defconfig
View File

@ -23,7 +23,6 @@ CONFIG_NUMA_BALANCING=y
CONFIG_MEMCG=y
CONFIG_BLK_CGROUP=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
@ -90,7 +89,6 @@ CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
CONFIG_ZSMALLOC_STAT=y
@ -298,7 +296,6 @@ CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
@ -340,7 +337,6 @@ CONFIG_BRIDGE_MRP=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
@ -351,7 +347,6 @@ CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
@ -363,14 +358,11 @@ CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
CONFIG_NET_SCH_ETS=m
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=m
@ -584,7 +576,7 @@ CONFIG_DIAG288_WATCHDOG=m
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_HID is not set
# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_ACCESS=m
@ -828,6 +820,7 @@ CONFIG_PANIC_ON_OOPS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_WQ_WATCHDOG=y
CONFIG_TEST_LOCKUP=m
CONFIG_DEBUG_PREEMPT=y
CONFIG_PROVE_LOCKING=y
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
@ -843,6 +836,7 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=300
# CONFIG_RCU_TRACE is not set
CONFIG_LATENCYTOP=y
CONFIG_BOOTTIME_TRACING=y
CONFIG_FPROBE=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
CONFIG_IRQSOFF_TRACER=y
@ -857,6 +851,7 @@ CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACE_PRINTK=m
CONFIG_SAMPLE_FTRACE_DIRECT=m
CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
CONFIG_SAMPLE_FTRACE_OPS=m
CONFIG_DEBUG_ENTRY=y
CONFIG_CIO_INJECT=y
CONFIG_KUNIT=m

12
arch/s390/configs/defconfig
View File

@ -21,7 +21,6 @@ CONFIG_NUMA_BALANCING=y
CONFIG_MEMCG=y
CONFIG_BLK_CGROUP=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
@ -85,7 +84,6 @@ CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
CONFIG_ZSMALLOC_STAT=y
@ -289,7 +287,6 @@ CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
@ -330,7 +327,6 @@ CONFIG_BRIDGE_MRP=y
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
@ -341,7 +337,6 @@ CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
@ -353,14 +348,11 @@ CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
CONFIG_NET_SCH_ETS=m
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=m
@ -573,7 +565,7 @@ CONFIG_DIAG288_WATCHDOG=m
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_HID is not set
# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_ACCESS=m
@ -795,6 +787,7 @@ CONFIG_RCU_REF_SCALE_TEST=m
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_LATENCYTOP=y
CONFIG_BOOTTIME_TRACING=y
CONFIG_FPROBE=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
CONFIG_SCHED_TRACER=y
@ -805,6 +798,7 @@ CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACE_PRINTK=m
CONFIG_SAMPLE_FTRACE_DIRECT=m
CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
CONFIG_SAMPLE_FTRACE_OPS=m
CONFIG_KUNIT=m
CONFIG_KUNIT_DEBUGFS=y
CONFIG_LKDTM=m

2
arch/s390/configs/zfcpdump_defconfig
View File

@ -58,7 +58,7 @@ CONFIG_ZFCP=y
# CONFIG_VMCP is not set
# CONFIG_MONWRITER is not set
# CONFIG_S390_VMUR is not set
# CONFIG_HID is not set
# CONFIG_HID_SUPPORT is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set
# CONFIG_IOMMU_SUPPORT is not set

16
arch/s390/pci/pci.c
View File

@ -544,8 +544,7 @@ static struct resource *__alloc_res(struct zpci_dev *zdev, unsigned long start,
return r;
}
int zpci_setup_bus_resources(struct zpci_dev *zdev,
struct list_head *resources)
int zpci_setup_bus_resources(struct zpci_dev *zdev)
{
unsigned long addr, size, flags;
struct resource *res;
@ -581,7 +580,6 @@ int zpci_setup_bus_resources(struct zpci_dev *zdev,
return -ENOMEM;
}
zdev->bars[i].res = res;
pci_add_resource(resources, res);
}
zdev->has_resources = 1;
@ -590,17 +588,23 @@ int zpci_setup_bus_resources(struct zpci_dev *zdev,
static void zpci_cleanup_bus_resources(struct zpci_dev *zdev)
{
struct resource *res;
int i;
pci_lock_rescan_remove();
for (i = 0; i < PCI_STD_NUM_BARS; i++) {
if (!zdev->bars[i].size || !zdev->bars[i].res)
res = zdev->bars[i].res;
if (!res)
continue;
release_resource(res);
pci_bus_remove_resource(zdev->zbus->bus, res);
zpci_free_iomap(zdev, zdev->bars[i].map_idx);
release_resource(zdev->bars[i].res);
kfree(zdev->bars[i].res);
zdev->bars[i].res = NULL;
kfree(res);
}
zdev->has_resources = 0;
pci_unlock_rescan_remove();
}
int pcibios_device_add(struct pci_dev *pdev)

12
arch/s390/pci/pci_bus.c
View File

@ -41,9 +41,7 @@ static int zpci_nb_devices;
*/
static int zpci_bus_prepare_device(struct zpci_dev *zdev)
{
struct resource_entry *window, *n;
struct resource *res;
int rc;
int rc, i;
if (!zdev_enabled(zdev)) {
rc = zpci_enable_device(zdev);
@ -57,10 +55,10 @@ static int zpci_bus_prepare_device(struct zpci_dev *zdev)
}
if (!zdev->has_resources) {
zpci_setup_bus_resources(zdev, &zdev->zbus->resources);
resource_list_for_each_entry_safe(window, n, &zdev->zbus->resources) {
res = window->res;
pci_bus_add_resource(zdev->zbus->bus, res, 0);
zpci_setup_bus_resources(zdev);
for (i = 0; i < PCI_STD_NUM_BARS; i++) {
if (zdev->bars[i].res)
pci_bus_add_resource(zdev->zbus->bus, zdev->bars[i].res, 0);
}
}

3
arch/s390/pci/pci_bus.h
View File

@ -30,8 +30,7 @@ static inline void zpci_zdev_get(struct zpci_dev *zdev)
int zpci_alloc_domain(int domain);
void zpci_free_domain(int domain);
int zpci_setup_bus_resources(struct zpci_dev *zdev,
struct list_head *resources);
int zpci_setup_bus_resources(struct zpci_dev *zdev);
static inline struct zpci_dev *zdev_from_bus(struct pci_bus *bus,
unsigned int devfn)

1
arch/sh/include/asm/processor_32.h
View File

@ -50,6 +50,7 @@
#define SR_FD 0x00008000
#define SR_MD 0x40000000
#define SR_USER_MASK 0x00000303 // M, Q, S, T bits
/*
* DSP structure and data
*/

3
arch/sh/kernel/signal_32.c
View File

@ -115,6 +115,7 @@ static int
restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p)
{
unsigned int err = 0;
unsigned int sr = regs->sr & ~SR_USER_MASK;
#define COPY(x) err |= __get_user(regs->x, &sc->sc_##x)
COPY(regs[1]);
@ -130,6 +131,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p
COPY(sr); COPY(pc);
#undef COPY
regs->sr = (regs->sr & SR_USER_MASK) | sr;
#ifdef CONFIG_SH_FPU
if (boot_cpu_data.flags & CPU_HAS_FPU) {
int owned_fp;

12
arch/x86/include/asm/resctrl.h
View File

@ -49,7 +49,7 @@ DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key);
* simple as possible.
* Must be called with preemption disabled.
*/
static void __resctrl_sched_in(void)
static inline void __resctrl_sched_in(struct task_struct *tsk)
{
struct resctrl_pqr_state *state = this_cpu_ptr(&pqr_state);
u32 closid = state->default_closid;
@ -61,13 +61,13 @@ static void __resctrl_sched_in(void)
* Else use the closid/rmid assigned to this cpu.
*/
if (static_branch_likely(&rdt_alloc_enable_key)) {
tmp = READ_ONCE(current->closid);
tmp = READ_ONCE(tsk->closid);
if (tmp)
closid = tmp;
}
if (static_branch_likely(&rdt_mon_enable_key)) {
tmp = READ_ONCE(current->rmid);
tmp = READ_ONCE(tsk->rmid);
if (tmp)
rmid = tmp;
}
@ -88,17 +88,17 @@ static inline unsigned int resctrl_arch_round_mon_val(unsigned int val)
return val * scale;
}
static inline void resctrl_sched_in(void)
static inline void resctrl_sched_in(struct task_struct *tsk)
{
if (static_branch_likely(&rdt_enable_key))
__resctrl_sched_in();
__resctrl_sched_in(tsk);
}
void resctrl_cpu_detect(struct cpuinfo_x86 *c);
#else
static inline void resctrl_sched_in(void) {}
static inline void resctrl_sched_in(struct task_struct *tsk) {}
static inline void resctrl_cpu_detect(struct cpuinfo_x86 *c) {}
#endif /* CONFIG_X86_CPU_RESCTRL */

3
arch/x86/include/asm/sev-common.h
View File

@ -128,8 +128,9 @@ struct snp_psc_desc {
struct psc_entry entries[VMGEXIT_PSC_MAX_ENTRY];
} __packed;
/* Guest message request error code */
/* Guest message request error codes */
#define SNP_GUEST_REQ_INVALID_LEN BIT_ULL(32)
#define SNP_GUEST_REQ_ERR_BUSY BIT_ULL(33)
#define GHCB_MSR_TERM_REQ 0x100
#define GHCB_MSR_TERM_REASON_SET_POS 12

12
arch/x86/include/asm/svm.h
View File

@ -261,20 +261,22 @@ enum avic_ipi_failure_cause {
AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
};
#define AVIC_PHYSICAL_MAX_INDEX_MASK GENMASK_ULL(9, 0)
#define AVIC_PHYSICAL_MAX_INDEX_MASK GENMASK_ULL(8, 0)
/*
* For AVIC, the max index allowed for physical APIC ID
* table is 0xff (255).
* For AVIC, the max index allowed for physical APIC ID table is 0xfe (254), as
* 0xff is a broadcast to all CPUs, i.e. can't be targeted individually.
*/
#define AVIC_MAX_PHYSICAL_ID 0XFEULL
/*
* For x2AVIC, the max index allowed for physical APIC ID
* table is 0x1ff (511).
* For x2AVIC, the max index allowed for physical APIC ID table is 0x1ff (511).
*/
#define X2AVIC_MAX_PHYSICAL_ID 0x1FFUL
static_assert((AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == AVIC_MAX_PHYSICAL_ID);
static_assert((X2AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_MAX_PHYSICAL_ID);
#define AVIC_HPA_MASK ~((0xFFFULL << 52) | 0xFFF)
#define VMCB_AVIC_APIC_BAR_MASK 0xFFFFFFFFFF000ULL

22
arch/x86/include/asm/xen/cpuid.h
View File

@ -89,11 +89,21 @@
* Sub-leaf 2: EAX: host tsc frequency in kHz
*/
#define XEN_CPUID_TSC_EMULATED (1u << 0)
#define XEN_CPUID_HOST_TSC_RELIABLE (1u << 1)
#define XEN_CPUID_RDTSCP_INSTR_AVAIL (1u << 2)
#define XEN_CPUID_TSC_MODE_DEFAULT (0)
#define XEN_CPUID_TSC_MODE_ALWAYS_EMULATE (1u)
#define XEN_CPUID_TSC_MODE_NEVER_EMULATE (2u)
#define XEN_CPUID_TSC_MODE_PVRDTSCP (3u)
/*
* Leaf 5 (0x40000x04)
* HVM-specific features
* Sub-leaf 0: EAX: Features
* Sub-leaf 0: EBX: vcpu id (iff EAX has XEN_HVM_CPUID_VCPU_ID_PRESENT flag)
* Sub-leaf 0: ECX: domain id (iff EAX has XEN_HVM_CPUID_DOMID_PRESENT flag)
*/
#define XEN_HVM_CPUID_APIC_ACCESS_VIRT (1u << 0) /* Virtualized APIC registers */
#define XEN_HVM_CPUID_X2APIC_VIRT (1u << 1) /* Virtualized x2APIC accesses */
@ -102,12 +112,16 @@
#define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */
#define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */
/*
* Bits 55:49 from the IO-APIC RTE and bits 11:5 from the MSI address can be
* used to store high bits for the Destination ID. This expands the Destination
* ID field from 8 to 15 bits, allowing to target APIC IDs up 32768.
* With interrupt format set to 0 (non-remappable) bits 55:49 from the
* IO-APIC RTE and bits 11:5 from the MSI address can be used to store
* high bits for the Destination ID. This expands the Destination ID
* field from 8 to 15 bits, allowing to target APIC IDs up 32768.
*/
#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5)
/* Per-vCPU event channel upcalls */
/*
* Per-vCPU event channel upcalls work correctly with physical IRQs
* bound to event channels.
*/
#define XEN_HVM_CPUID_UPCALL_VECTOR (1u << 6)
/*

9
arch/x86/kernel/cpu/amd.c
View File

@ -880,6 +880,15 @@ void init_spectral_chicken(struct cpuinfo_x86 *c)
}
}
#endif
/*
* Work around Erratum 1386. The XSAVES instruction malfunctions in
* certain circumstances on Zen1/2 uarch, and not all parts have had
* updated microcode at the time of writing (March 2023).
*
* Affected parts all have no supervisor XSAVE states, meaning that
* the XSAVEC instruction (which works fine) is equivalent.
*/
clear_cpu_cap(c, X86_FEATURE_XSAVES);
}
static void init_amd_zn(struct cpuinfo_x86 *c)

1
arch/x86/kernel/cpu/mce/core.c
View File

@ -2355,6 +2355,7 @@ static void mce_restart(void)
{
mce_timer_delete_all();
on_each_cpu(mce_cpu_restart, NULL, 1);
mce_schedule_work();
}
/* Toggle features for corrected errors */

7
arch/x86/kernel/cpu/resctrl/ctrlmondata.c
View File

@ -368,7 +368,6 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
{
struct resctrl_schema *s;
struct rdtgroup *rdtgrp;
struct rdt_domain *dom;
struct rdt_resource *r;
char *tok, *resname;
int ret = 0;
@ -397,10 +396,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
goto out;
}
list_for_each_entry(s, &resctrl_schema_all, list) {
list_for_each_entry(dom, &s->res->domains, list)
memset(dom->staged_config, 0, sizeof(dom->staged_config));
}
rdt_staged_configs_clear();
while ((tok = strsep(&buf, "\n")) != NULL) {
resname = strim(strsep(&tok, ":"));
@ -445,6 +441,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
}
out:
rdt_staged_configs_clear();
rdtgroup_kn_unlock(of->kn);
cpus_read_unlock();
return ret ?: nbytes;

1
arch/x86/kernel/cpu/resctrl/internal.h
View File

@ -555,5 +555,6 @@ void __check_limbo(struct rdt_domain *d, bool force_free);
void rdt_domain_reconfigure_cdp(struct rdt_resource *r);
void __init thread_throttle_mode_init(void);
void __init mbm_config_rftype_init(const char *config);
void rdt_staged_configs_clear(void);
#endif /* _ASM_X86_RESCTRL_INTERNAL_H */

29
arch/x86/kernel/cpu/resctrl/rdtgroup.c
View File

@ -78,6 +78,19 @@ void rdt_last_cmd_printf(const char *fmt, ...)
va_end(ap);
}
void rdt_staged_configs_clear(void)
{
struct rdt_resource *r;
struct rdt_domain *dom;
lockdep_assert_held(&rdtgroup_mutex);
for_each_alloc_capable_rdt_resource(r) {
list_for_each_entry(dom, &r->domains, list)
memset(dom->staged_config, 0, sizeof(dom->staged_config));
}
}
/*
* Trivial allocator for CLOSIDs. Since h/w only supports a small number,
* we can keep a bitmap of free CLOSIDs in a single integer.
@ -314,7 +327,7 @@ static void update_cpu_closid_rmid(void *info)
* executing task might have its own closid selected. Just reuse
* the context switch code.
*/
resctrl_sched_in();
resctrl_sched_in(current);
}
/*
@ -530,7 +543,7 @@ static void _update_task_closid_rmid(void *task)
* Otherwise, the MSR is updated when the task is scheduled in.
*/
if (task == current)
resctrl_sched_in();
resctrl_sched_in(task);
}
static void update_task_closid_rmid(struct task_struct *t)
@ -3107,7 +3120,9 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
{
struct resctrl_schema *s;
struct rdt_resource *r;
int ret;
int ret = 0;
rdt_staged_configs_clear();
list_for_each_entry(s, &resctrl_schema_all, list) {
r = s->res;
@ -3119,20 +3134,22 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
} else {
ret = rdtgroup_init_cat(s, rdtgrp->closid);
if (ret < 0)
return ret;
goto out;
}
ret = resctrl_arch_update_domains(r, rdtgrp->closid);
if (ret < 0) {
rdt_last_cmd_puts("Failed to initialize allocations\n");
return ret;
goto out;
}
}
rdtgrp->mode = RDT_MODE_SHAREABLE;
return 0;
out:
rdt_staged_configs_clear();
return ret;
}
static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,

2
arch/x86/kernel/ftrace_64.S
View File

@ -136,10 +136,12 @@ SYM_TYPED_FUNC_START(ftrace_stub)
RET
SYM_FUNC_END(ftrace_stub)
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
SYM_TYPED_FUNC_START(ftrace_stub_graph)
CALL_DEPTH_ACCOUNT
RET
SYM_FUNC_END(ftrace_stub_graph)
#endif
#ifdef CONFIG_DYNAMIC_FTRACE

2
arch/x86/kernel/process_32.c
View File

@ -212,7 +212,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
switch_fpu_finish();
/* Load the Intel cache allocation PQR MSR. */
resctrl_sched_in();
resctrl_sched_in(next_p);
return prev_p;
}

2
arch/x86/kernel/process_64.c
View File

@ -656,7 +656,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
}
/* Load the Intel cache allocation PQR MSR. */
resctrl_sched_in();
resctrl_sched_in(next_p);
return prev_p;
}

26
arch/x86/kernel/sev.c
View File

@ -2183,9 +2183,6 @@ int snp_issue_guest_request(u64 exit_code, struct snp_req_data *input, unsigned
struct ghcb *ghcb;
int ret;
if (!cc_platform_has(CC_ATTR_GUEST_SEV_SNP))
return -ENODEV;
if (!fw_err)
return -EINVAL;
@ -2212,15 +2209,26 @@ int snp_issue_guest_request(u64 exit_code, struct snp_req_data *input, unsigned
if (ret)
goto e_put;
if (ghcb->save.sw_exit_info_2) {
*fw_err = ghcb->save.sw_exit_info_2;
switch (*fw_err) {
case 0:
break;
case SNP_GUEST_REQ_ERR_BUSY:
ret = -EAGAIN;
break;
case SNP_GUEST_REQ_INVALID_LEN:
/* Number of expected pages are returned in RBX */
if (exit_code == SVM_VMGEXIT_EXT_GUEST_REQUEST &&
ghcb->save.sw_exit_info_2 == SNP_GUEST_REQ_INVALID_LEN)
if (exit_code == SVM_VMGEXIT_EXT_GUEST_REQUEST) {
input->data_npages = ghcb_get_rbx(ghcb);
*fw_err = ghcb->save.sw_exit_info_2;
ret = -ENOSPC;
break;
}
fallthrough;
default:
ret = -EIO;
break;
}
e_put:

37
arch/x86/kvm/svm/avic.c
View File

@ -27,19 +27,38 @@
#include "irq.h"
#include "svm.h"
/* AVIC GATAG is encoded using VM and VCPU IDs */
#define AVIC_VCPU_ID_BITS 8
#define AVIC_VCPU_ID_MASK ((1 << AVIC_VCPU_ID_BITS) - 1)
/*
* Encode the arbitrary VM ID and the vCPU's default APIC ID, i.e the vCPU ID,
* into the GATag so that KVM can retrieve the correct vCPU from a GALog entry
* if an interrupt can't be delivered, e.g. because the vCPU isn't running.
*
* For the vCPU ID, use however many bits are currently allowed for the max
* guest physical APIC ID (limited by the size of the physical ID table), and
* use whatever bits remain to assign arbitrary AVIC IDs to VMs. Note, the
* size of the GATag is defined by hardware (32 bits), but is an opaque value
* as far as hardware is concerned.
*/
#define AVIC_VCPU_ID_MASK AVIC_PHYSICAL_MAX_INDEX_MASK
#define AVIC_VM_ID_BITS 24
#define AVIC_VM_ID_NR (1 << AVIC_VM_ID_BITS)
#define AVIC_VM_ID_MASK ((1 << AVIC_VM_ID_BITS) - 1)
#define AVIC_VM_ID_SHIFT HWEIGHT32(AVIC_PHYSICAL_MAX_INDEX_MASK)
#define AVIC_VM_ID_MASK (GENMASK(31, AVIC_VM_ID_SHIFT) >> AVIC_VM_ID_SHIFT)
#define AVIC_GATAG(x, y) (((x & AVIC_VM_ID_MASK) << AVIC_VCPU_ID_BITS) | \
(y & AVIC_VCPU_ID_MASK))
#define AVIC_GATAG_TO_VMID(x) ((x >> AVIC_VCPU_ID_BITS) & AVIC_VM_ID_MASK)
#define AVIC_GATAG_TO_VMID(x) ((x >> AVIC_VM_ID_SHIFT) & AVIC_VM_ID_MASK)
#define AVIC_GATAG_TO_VCPUID(x) (x & AVIC_VCPU_ID_MASK)
#define __AVIC_GATAG(vm_id, vcpu_id) ((((vm_id) & AVIC_VM_ID_MASK) << AVIC_VM_ID_SHIFT) | \
((vcpu_id) & AVIC_VCPU_ID_MASK))
#define AVIC_GATAG(vm_id, vcpu_id) \
({ \
u32 ga_tag = __AVIC_GATAG(vm_id, vcpu_id); \
\
WARN_ON_ONCE(AVIC_GATAG_TO_VCPUID(ga_tag) != (vcpu_id)); \
WARN_ON_ONCE(AVIC_GATAG_TO_VMID(ga_tag) != (vm_id)); \
ga_tag; \
})
static_assert(__AVIC_GATAG(AVIC_VM_ID_MASK, AVIC_VCPU_ID_MASK) == -1u);
static bool force_avic;
module_param_unsafe(force_avic, bool, 0444);

18
arch/x86/kvm/vmx/nested.c
View File

@ -2903,7 +2903,7 @@ static int nested_vmx_check_address_space_size(struct kvm_vcpu *vcpu,
static int nested_vmx_check_host_state(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12)
{
bool ia32e;
bool ia32e = !!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE);
if (CC(!nested_host_cr0_valid(vcpu, vmcs12->host_cr0)) ||
CC(!nested_host_cr4_valid(vcpu, vmcs12->host_cr4)) ||
@ -2923,12 +2923,6 @@ static int nested_vmx_check_host_state(struct kvm_vcpu *vcpu,
vmcs12->host_ia32_perf_global_ctrl)))
return -EINVAL;
#ifdef CONFIG_X86_64
ia32e = !!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE);
#else
ia32e = false;
#endif
if (ia32e) {
if (CC(!(vmcs12->host_cr4 & X86_CR4_PAE)))
return -EINVAL;
@ -3022,7 +3016,7 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12,
enum vm_entry_failure_code *entry_failure_code)
{
bool ia32e;
bool ia32e = !!(vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE);
*entry_failure_code = ENTRY_FAIL_DEFAULT;
@ -3048,6 +3042,13 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
vmcs12->guest_ia32_perf_global_ctrl)))
return -EINVAL;
if (CC((vmcs12->guest_cr0 & (X86_CR0_PG | X86_CR0_PE)) == X86_CR0_PG))
return -EINVAL;
if (CC(ia32e && !(vmcs12->guest_cr4 & X86_CR4_PAE)) ||
CC(ia32e && !(vmcs12->guest_cr0 & X86_CR0_PG)))
return -EINVAL;
/*
* If the load IA32_EFER VM-entry control is 1, the following checks
* are performed on the field for the IA32_EFER MSR:
@ -3059,7 +3060,6 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
*/
if (to_vmx(vcpu)->nested.nested_run_pending &&
(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_EFER)) {
ia32e = (vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE) != 0;
if (CC(!kvm_valid_efer(vcpu, vmcs12->guest_ia32_efer)) ||
CC(ia32e != !!(vmcs12->guest_ia32_efer & EFER_LMA)) ||
CC(((vmcs12->guest_cr0 & X86_CR0_PG) &&

4
arch/x86/kvm/vmx/vmenter.S
View File

@ -262,7 +262,7 @@ SYM_INNER_LABEL(vmx_vmexit, SYM_L_GLOBAL)
* eIBRS has its own protection against poisoned RSB, so it doesn't
* need the RSB filling sequence. But it does need to be enabled, and a
* single call to retire, before the first unbalanced RET.
*/
*/
FILL_RETURN_BUFFER %_ASM_CX, RSB_CLEAR_LOOPS, X86_FEATURE_RSB_VMEXIT,\
X86_FEATURE_RSB_VMEXIT_LITE
@ -311,7 +311,7 @@ SYM_FUNC_END(vmx_do_nmi_irqoff)
* vmread_error_trampoline - Trampoline from inline asm to vmread_error()
* @field: VMCS field encoding that failed
* @fault: %true if the VMREAD faulted, %false if it failed
*
* Save and restore volatile registers across a call to vmread_error(). Note,
* all parameters are passed on the stack.
*/

12
arch/x86/kvm/vmx/vmx.c
View File

@ -874,7 +874,7 @@ void vmx_update_exception_bitmap(struct kvm_vcpu *vcpu)
*/
if (is_guest_mode(vcpu))
eb |= get_vmcs12(vcpu)->exception_bitmap;
else {
else {
int mask = 0, match = 0;
if (enable_ept && (eb & (1u << PF_VECTOR))) {
@ -1282,7 +1282,7 @@ void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
}
}
if (vmx->nested.need_vmcs12_to_shadow_sync)
if (vmx->nested.need_vmcs12_to_shadow_sync)
nested_sync_vmcs12_to_shadow(vcpu);
if (vmx->guest_state_loaded)
@ -5049,10 +5049,10 @@ static int vmx_interrupt_allowed(struct kvm_vcpu *vcpu, bool for_injection)
if (to_vmx(vcpu)->nested.nested_run_pending)
return -EBUSY;
/*
* An IRQ must not be injected into L2 if it's supposed to VM-Exit,
* e.g. if the IRQ arrived asynchronously after checking nested events.
*/
/*
* An IRQ must not be injected into L2 if it's supposed to VM-Exit,
* e.g. if the IRQ arrived asynchronously after checking nested events.
*/
if (for_injection && is_guest_mode(vcpu) && nested_exit_on_intr(vcpu))
return -EBUSY;

3
arch/x86/mm/mem_encrypt_identity.c
View File

@ -600,7 +600,8 @@ void __init sme_enable(struct boot_params *bp)
cmdline_ptr = (const char *)((u64)bp->hdr.cmd_line_ptr |
((u64)bp->ext_cmd_line_ptr << 32));
cmdline_find_option(cmdline_ptr, cmdline_arg, buffer, sizeof(buffer));
if (cmdline_find_option(cmdline_ptr, cmdline_arg, buffer, sizeof(buffer)) < 0)
return;
if (!strncmp(buffer, cmdline_on, sizeof(buffer)))
sme_me_mask = me_mask;

2
arch/x86/xen/Makefile
View File

@ -45,6 +45,6 @@ obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o
obj-$(CONFIG_XEN_PV_DOM0) += vga.o
obj-$(CONFIG_XEN_DOM0) += vga.o
obj-$(CONFIG_XEN_EFI) += efi.o

3
arch/x86/xen/enlighten_pv.c
View File

@ -1390,7 +1390,8 @@ asmlinkage __visible void __init xen_start_kernel(struct start_info *si)
x86_platform.set_legacy_features =
xen_dom0_set_legacy_features;
xen_init_vga(info, xen_start_info->console.dom0.info_size);
xen_init_vga(info, xen_start_info->console.dom0.info_size,
&boot_params.screen_info);
xen_start_info->console.domU.mfn = 0;
xen_start_info->console.domU.evtchn = 0;

13
arch/x86/xen/enlighten_pvh.c
View File

@ -43,6 +43,19 @@ void __init xen_pvh_init(struct boot_params *boot_params)
x86_init.oem.banner = xen_banner;
xen_efi_init(boot_params);
if (xen_initial_domain()) {
struct xen_platform_op op = {
.cmd = XENPF_get_dom0_console,
};
long ret = HYPERVISOR_platform_op(&op);
if (ret > 0)
xen_init_vga(&op.u.dom0_console,
min(ret * sizeof(char),
sizeof(op.u.dom0_console)),
&boot_params->screen_info);
}
}
void __init mem_map_via_hcall(struct boot_params *boot_params_p)

7
arch/x86/xen/time.c
View File

@ -20,6 +20,7 @@
#include <asm/pvclock.h>
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/cpuid.h>
#include <xen/events.h>
#include <xen/features.h>
@ -503,11 +504,7 @@ static int __init xen_tsc_safe_clocksource(void)
/* Leaf 4, sub-leaf 0 (0x40000x03) */
cpuid_count(xen_cpuid_base() + 3, 0, &eax, &ebx, &ecx, &edx);
/* tsc_mode = no_emulate (2) */
if (ebx != 2)
return 0;
return 1;
return ebx == XEN_CPUID_TSC_MODE_NEVER_EMULATE;
}
static void __init xen_time_init(void)

5
arch/x86/xen/vga.c
View File

@ -9,10 +9,9 @@
#include "xen-ops.h"
void __init xen_init_vga(const struct dom0_vga_console_info *info, size_t size)
void __init xen_init_vga(const struct dom0_vga_console_info *info, size_t size,
struct screen_info *screen_info)
{
struct screen_info *screen_info = &boot_params.screen_info;
/* This is drawn from a dump from vgacon:startup in
* standard Linux. */
screen_info->orig_video_mode = 3;

7
arch/x86/xen/xen-ops.h
View File

@ -108,11 +108,12 @@ static inline void xen_uninit_lock_cpu(int cpu)
struct dom0_vga_console_info;
#ifdef CONFIG_XEN_PV_DOM0
void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
#ifdef CONFIG_XEN_DOM0
void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size,
struct screen_info *);
#else
static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
size_t size)
size_t size, struct screen_info *si)
{
}
#endif

3
block/Kconfig
View File

@ -204,9 +204,6 @@ config BLK_INLINE_ENCRYPTION_FALLBACK
source "block/partitions/Kconfig"
config BLOCK_COMPAT
def_bool COMPAT
config BLK_MQ_PCI
def_bool PCI

18
block/bfq-iosched.c
View File

@ -2854,11 +2854,11 @@ bfq_setup_stable_merge(struct bfq_data *bfqd, struct bfq_queue *bfqq,
{
int proc_ref = min(bfqq_process_refs(bfqq),
bfqq_process_refs(stable_merge_bfqq));
struct bfq_queue *new_bfqq;
struct bfq_queue *new_bfqq = NULL;
if (idling_boosts_thr_without_issues(bfqd, bfqq) ||
proc_ref == 0)
return NULL;
bfqq_data->stable_merge_bfqq = NULL;
if (idling_boosts_thr_without_issues(bfqd, bfqq) || proc_ref == 0)
goto out;
/* next function will take at least one ref */
new_bfqq = bfq_setup_merge(bfqq, stable_merge_bfqq);
@ -2873,6 +2873,11 @@ bfq_setup_stable_merge(struct bfq_data *bfqd, struct bfq_queue *bfqq,
new_bfqq_data->stably_merged = true;
}
}
out:
/* deschedule stable merge, because done or aborted here */
bfq_put_stable_ref(stable_merge_bfqq);
return new_bfqq;
}
@ -2933,11 +2938,6 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
struct bfq_queue *stable_merge_bfqq =
bfqq_data->stable_merge_bfqq;
/* deschedule stable merge, because done or aborted here */
bfq_put_stable_ref(stable_merge_bfqq);
bfqq_data->stable_merge_bfqq = NULL;
return bfq_setup_stable_merge(bfqd, bfqq,
stable_merge_bfqq,
bfqq_data);

16
block/blk-core.c
View File

@ -959,16 +959,11 @@ again:
}
}
unsigned long bdev_start_io_acct(struct block_device *bdev,
unsigned int sectors, enum req_op op,
unsigned long bdev_start_io_acct(struct block_device *bdev, enum req_op op,
unsigned long start_time)
{
const int sgrp = op_stat_group(op);
part_stat_lock();
update_io_ticks(bdev, start_time, false);
part_stat_inc(bdev, ios[sgrp]);
part_stat_add(bdev, sectors[sgrp], sectors);
part_stat_local_inc(bdev, in_flight[op_is_write(op)]);
part_stat_unlock();
@ -984,13 +979,12 @@ EXPORT_SYMBOL(bdev_start_io_acct);
*/
unsigned long bio_start_io_acct(struct bio *bio)
{
return bdev_start_io_acct(bio->bi_bdev, bio_sectors(bio),
bio_op(bio), jiffies);
return bdev_start_io_acct(bio->bi_bdev, bio_op(bio), jiffies);
}
EXPORT_SYMBOL_GPL(bio_start_io_acct);
void bdev_end_io_acct(struct block_device *bdev, enum req_op op,
unsigned long start_time)
unsigned int sectors, unsigned long start_time)
{
const int sgrp = op_stat_group(op);
unsigned long now = READ_ONCE(jiffies);
@ -998,6 +992,8 @@ void bdev_end_io_acct(struct block_device *bdev, enum req_op op,
part_stat_lock();
update_io_ticks(bdev, now, true);
part_stat_inc(bdev, ios[sgrp]);
part_stat_add(bdev, sectors[sgrp], sectors);
part_stat_add(bdev, nsecs[sgrp], jiffies_to_nsecs(duration));
part_stat_local_dec(bdev, in_flight[op_is_write(op)]);
part_stat_unlock();
@ -1007,7 +1003,7 @@ EXPORT_SYMBOL(bdev_end_io_acct);
void bio_end_io_acct_remapped(struct bio *bio, unsigned long start_time,
struct block_device *orig_bdev)
{
bdev_end_io_acct(orig_bdev, bio_op(bio), start_time);
bdev_end_io_acct(orig_bdev, bio_op(bio), bio_sectors(bio), start_time);
}
EXPORT_SYMBOL_GPL(bio_end_io_acct_remapped);

5
block/blk-mq.c
View File

@ -2725,6 +2725,7 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched)
struct blk_mq_hw_ctx *this_hctx = NULL;
struct blk_mq_ctx *this_ctx = NULL;
struct request *requeue_list = NULL;
struct request **requeue_lastp = &requeue_list;
unsigned int depth = 0;
LIST_HEAD(list);
@ -2735,10 +2736,10 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched)
this_hctx = rq->mq_hctx;
this_ctx = rq->mq_ctx;
} else if (this_hctx != rq->mq_hctx || this_ctx != rq->mq_ctx) {
rq_list_add(&requeue_list, rq);
rq_list_add_tail(&requeue_lastp, rq);
continue;
}
list_add_tail(&rq->queuelist, &list);
list_add(&rq->queuelist, &list);
depth++;
} while (!rq_list_empty(plug->mq_list));

5
block/blk-mq.h
View File

@ -378,12 +378,13 @@ static inline bool hctx_may_queue(struct blk_mq_hw_ctx *hctx,
#define __blk_mq_run_dispatch_ops(q, check_sleep, dispatch_ops) \
do { \
if ((q)->tag_set->flags & BLK_MQ_F_BLOCKING) { \
struct blk_mq_tag_set *__tag_set = (q)->tag_set; \
int srcu_idx; \
\
might_sleep_if(check_sleep); \
srcu_idx = srcu_read_lock((q)->tag_set->srcu); \
srcu_idx = srcu_read_lock(__tag_set->srcu); \
(dispatch_ops); \
srcu_read_unlock((q)->tag_set->srcu, srcu_idx); \
srcu_read_unlock(__tag_set->srcu, srcu_idx); \
} else { \
rcu_read_lock(); \
(dispatch_ops); \

2
block/genhd.c
View File

@ -385,7 +385,7 @@ int disk_scan_partitions(struct gendisk *disk, fmode_t mode)
if (IS_ERR(bdev))
ret = PTR_ERR(bdev);
else
blkdev_put(bdev, mode);
blkdev_put(bdev, mode & ~FMODE_EXCL);
if (!(mode & FMODE_EXCL))
bd_abort_claiming(disk->part0, disk_scan_partitions);

4
drivers/accel/Makefile
View File

@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y += habanalabs/
obj-y += ivpu/
obj-$(CONFIG_DRM_ACCEL_HABANALABS) += habanalabs/
obj-$(CONFIG_DRM_ACCEL_IVPU) += ivpu/

5
drivers/acpi/pptt.c
View File

@ -536,16 +536,19 @@ static int topology_get_acpi_cpu_tag(struct acpi_table_header *table,
static struct acpi_table_header *acpi_get_pptt(void)
{
static struct acpi_table_header *pptt;
static bool is_pptt_checked;
acpi_status status;
/*
* PPTT will be used at runtime on every CPU hotplug in path, so we
* don't need to call acpi_put_table() to release the table mapping.
*/
if (!pptt) {
if (!pptt && !is_pptt_checked) {
status = acpi_get_table(ACPI_SIG_PPTT, 0, &pptt);
if (ACPI_FAILURE(status))
acpi_pptt_warn_missing();
is_pptt_checked = true;
}
return pptt;

7
drivers/acpi/video_detect.c
View File

@ -716,6 +716,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"),
},
},
{
.callback = video_detect_force_native,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 15 3535"),
},
},
/*
* Desktops which falsely report a backlight and which our heuristics

45
drivers/acpi/x86/utils.c
View File

@ -251,6 +251,7 @@ bool force_storage_d3(void)
#define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(1)
#define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(2)
#define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(3)
#define ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS BIT(4)
static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
/*
@ -279,6 +280,16 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
* need the x86-android-tablets module to properly work.
*/
#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
{
/* Acer Iconia One 7 B1-750 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
},
.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
},
{
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
@ -286,7 +297,19 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
},
.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
ACPI_QUIRK_UART1_TTY_UART2_SKIP |
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
},
{
/* Lenovo Yoga Book X90F/L */
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
},
.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
},
{
.matches = {
@ -294,7 +317,8 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
},
.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
},
{
/* Lenovo Yoga Tablet 2 1050F/L */
@ -336,7 +360,8 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
},
.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
},
{
/* Whitelabel (sold as various brands) TM800A550L */
@ -413,6 +438,20 @@ int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *s
return 0;
}
EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
bool acpi_quirk_skip_gpio_event_handlers(void)
{
const struct dmi_system_id *dmi_id;
long quirks;
dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
if (!dmi_id)
return false;
quirks = (unsigned long)dmi_id->driver_data;
return (quirks & ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS);
}
EXPORT_SYMBOL_GPL(acpi_quirk_skip_gpio_event_handlers);
#endif
/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */

32
drivers/ata/pata_parport/pata_parport.c
View File

@ -381,6 +381,7 @@ static void pata_parport_dev_release(struct device *dev)
{
struct pi_adapter *pi = container_of(dev, struct pi_adapter, dev);
ida_free(&pata_parport_bus_dev_ids, dev->id);
kfree(pi);
}
@ -433,23 +434,27 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
if (bus_for_each_dev(&pata_parport_bus_type, NULL, &match, pi_find_dev))
return NULL;
pi = kzalloc(sizeof(struct pi_adapter), GFP_KERNEL);
if (!pi)
id = ida_alloc(&pata_parport_bus_dev_ids, GFP_KERNEL);
if (id < 0)
return NULL;
pi = kzalloc(sizeof(struct pi_adapter), GFP_KERNEL);
if (!pi) {
ida_free(&pata_parport_bus_dev_ids, id);
return NULL;
}
/* set up pi->dev before pi_probe_unit() so it can use dev_printk() */
pi->dev.parent = &pata_parport_bus;
pi->dev.bus = &pata_parport_bus_type;
pi->dev.driver = &pr->driver;
pi->dev.release = pata_parport_dev_release;
id = ida_alloc(&pata_parport_bus_dev_ids, GFP_KERNEL);
if (id < 0)
return NULL; /* pata_parport_dev_release will do kfree(pi) */
pi->dev.id = id;
dev_set_name(&pi->dev, "pata_parport.%u", pi->dev.id);
if (device_register(&pi->dev)) {
put_device(&pi->dev);
goto out_ida_free;
/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */
return NULL;
}
pi->proto = pr;
@ -464,8 +469,7 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
pi->port = parport->base;
par_cb.private = pi;
pi->pardev = parport_register_dev_model(parport, DRV_NAME, &par_cb,
pi->dev.id);
pi->pardev = parport_register_dev_model(parport, DRV_NAME, &par_cb, id);
if (!pi->pardev)
goto out_module_put;
@ -487,12 +491,13 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
pi_connect(pi);
if (ata_host_activate(host, 0, NULL, 0, &pata_parport_sht))
goto out_unreg_parport;
goto out_disconnect;
return pi;
out_unreg_parport:
out_disconnect:
pi_disconnect(pi);
out_unreg_parport:
parport_unregister_device(pi->pardev);
if (pi->proto->release_proto)
pi->proto->release_proto(pi);
@ -500,8 +505,7 @@ out_module_put:
module_put(pi->proto->owner);
out_unreg_dev:
device_unregister(&pi->dev);
out_ida_free:
ida_free(&pata_parport_bus_dev_ids, pi->dev.id);
/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */
return NULL;
}
@ -626,8 +630,7 @@ static void pi_remove_one(struct device *dev)
pi_disconnect(pi);
pi_release(pi);
device_unregister(dev);
ida_free(&pata_parport_bus_dev_ids, dev->id);
/* pata_parport_dev_release will do kfree(pi) */
/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */
}
static ssize_t delete_device_store(struct bus_type *bus, const char *buf,
@ -643,6 +646,7 @@ static ssize_t delete_device_store(struct bus_type *bus, const char *buf,
}
pi_remove_one(dev);
put_device(dev);
mutex_unlock(&pi_mutex);
return count;

25
drivers/block/loop.c
View File

@ -1859,35 +1859,44 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
static void loop_handle_cmd(struct loop_cmd *cmd)
{
struct cgroup_subsys_state *cmd_blkcg_css = cmd->blkcg_css;
struct cgroup_subsys_state *cmd_memcg_css = cmd->memcg_css;
struct request *rq = blk_mq_rq_from_pdu(cmd);
const bool write = op_is_write(req_op(rq));
struct loop_device *lo = rq->q->queuedata;
int ret = 0;
struct mem_cgroup *old_memcg = NULL;
const bool use_aio = cmd->use_aio;
if (write && (lo->lo_flags & LO_FLAGS_READ_ONLY)) {
ret = -EIO;
goto failed;
}
if (cmd->blkcg_css)
kthread_associate_blkcg(cmd->blkcg_css);
if (cmd->memcg_css)
if (cmd_blkcg_css)
kthread_associate_blkcg(cmd_blkcg_css);
if (cmd_memcg_css)
old_memcg = set_active_memcg(
mem_cgroup_from_css(cmd->memcg_css));
mem_cgroup_from_css(cmd_memcg_css));
/*
* do_req_filebacked() may call blk_mq_complete_request() synchronously
* or asynchronously if using aio. Hence, do not touch 'cmd' after
* do_req_filebacked() has returned unless we are sure that 'cmd' has
* not yet been completed.
*/
ret = do_req_filebacked(lo, rq);
if (cmd->blkcg_css)
if (cmd_blkcg_css)
kthread_associate_blkcg(NULL);
if (cmd->memcg_css) {
if (cmd_memcg_css) {
set_active_memcg(old_memcg);
css_put(cmd->memcg_css);
css_put(cmd_memcg_css);
}
failed:
/* complete non-aio request */
if (!cmd->use_aio || ret) {
if (!use_aio || ret) {
if (ret == -EOPNOTSUPP)
cmd->ret = ret;
else

31
drivers/block/null_blk/main.c
View File

@ -1413,8 +1413,7 @@ static inline void nullb_complete_cmd(struct nullb_cmd *cmd)
case NULL_IRQ_SOFTIRQ:
switch (cmd->nq->dev->queue_mode) {
case NULL_Q_MQ:
if (likely(!blk_should_fake_timeout(cmd->rq->q)))
blk_mq_complete_request(cmd->rq);
blk_mq_complete_request(cmd->rq);
break;
case NULL_Q_BIO:
/*
@ -1658,12 +1657,13 @@ static enum blk_eh_timer_return null_timeout_rq(struct request *rq)
}
static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
const struct blk_mq_queue_data *bd)
{
struct nullb_cmd *cmd = blk_mq_rq_to_pdu(bd->rq);
struct request *rq = bd->rq;
struct nullb_cmd *cmd = blk_mq_rq_to_pdu(rq);
struct nullb_queue *nq = hctx->driver_data;
sector_t nr_sectors = blk_rq_sectors(bd->rq);
sector_t sector = blk_rq_pos(bd->rq);
sector_t nr_sectors = blk_rq_sectors(rq);
sector_t sector = blk_rq_pos(rq);
const bool is_poll = hctx->type == HCTX_TYPE_POLL;
might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING);
@ -1672,14 +1672,15 @@ static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
hrtimer_init(&cmd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
cmd->timer.function = null_cmd_timer_expired;
}
cmd->rq = bd->rq;
cmd->rq = rq;
cmd->error = BLK_STS_OK;
cmd->nq = nq;
cmd->fake_timeout = should_timeout_request(bd->rq);
cmd->fake_timeout = should_timeout_request(rq) ||
blk_should_fake_timeout(rq->q);
blk_mq_start_request(bd->rq);
blk_mq_start_request(rq);
if (should_requeue_request(bd->rq)) {
if (should_requeue_request(rq)) {
/*
* Alternate between hitting the core BUSY path, and the
* driver driven requeue path
@ -1687,22 +1688,20 @@ static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
nq->requeue_selection++;
if (nq->requeue_selection & 1)
return BLK_STS_RESOURCE;
else {
blk_mq_requeue_request(bd->rq, true);
return BLK_STS_OK;
}
blk_mq_requeue_request(rq, true);
return BLK_STS_OK;
}
if (is_poll) {
spin_lock(&nq->poll_lock);
list_add_tail(&bd->rq->queuelist, &nq->poll_list);
list_add_tail(&rq->queuelist, &nq->poll_list);
spin_unlock(&nq->poll_lock);
return BLK_STS_OK;
}
if (cmd->fake_timeout)
return BLK_STS_OK;
return null_handle_cmd(cmd, sector, nr_sectors, req_op(bd->rq));
return null_handle_cmd(cmd, sector, nr_sectors, req_op(rq));
}
static void cleanup_queue(struct nullb_queue *nq)

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