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Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
zero-sugar-mainline-defconfig
Jakub Kicinski 2020-11-19 19:08:46 -08:00
parent 657bc1d10b 4d02da974e
commit 56495a2442
443 changed files with 3975 additions and 2050 deletions
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5
.mailmap
View File

@ -82,7 +82,10 @@ 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>
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Dmitry Baryshkov <dbaryshkov@gmail.com>
Dmitry Baryshkov <dbaryshkov@gmail.com> <[dbaryshkov@gmail.com]>
Dmitry Baryshkov <dbaryshkov@gmail.com> <dmitry_baryshkov@mentor.com>
Dmitry Baryshkov <dbaryshkov@gmail.com> <dmitry_eremin@mentor.com>
Dmitry Safonov <0x7f454c46@gmail.com> <dima@arista.com>
Dmitry Safonov <0x7f454c46@gmail.com> <d.safonov@partner.samsung.com>
Dmitry Safonov <0x7f454c46@gmail.com> <dsafonov@virtuozzo.com>

62
CREDITS
View File

@ -98,7 +98,7 @@ N: Erik Andersen
E: andersen@codepoet.org
W: https://www.codepoet.org/
P: 1024D/30D39057 1BC4 2742 E885 E4DE 9301 0C82 5F9B 643E 30D3 9057
D: Maintainer of ide-cd and Uniform CD-ROM driver,
D: Maintainer of ide-cd and Uniform CD-ROM driver,
D: ATAPI CD-Changer support, Major 2.1.x CD-ROM update.
S: 352 North 525 East
S: Springville, Utah 84663
@ -263,7 +263,7 @@ N: Paul Barton-Davis
E: pbd@op.net
D: Driver for WaveFront soundcards (Turtle Beach Maui, Tropez, Tropez+)
D: Various bugfixes and changes to sound drivers
S: USA
S: USA
N: Carlos Henrique Bauer
E: chbauer@acm.org
@ -849,6 +849,12 @@ D: trivial hack to add variable address length routing to Rose.
D: AX25-HOWTO, HAM-HOWTO, IPX-HOWTO, NET-2-HOWTO
D: ax25-utils maintainer.
N: Kamil Debski
E: kamil@wypas.org
D: Samsung S5P 2D graphics acceleration and Multi Format Codec drivers
D: Samsung USB2 phy drivers
D: PWM fan driver
N: Helge Deller
E: deller@gmx.de
W: http://www.parisc-linux.org/
@ -1199,7 +1205,7 @@ N: Daniel J. Frasnelli
E: dfrasnel@alphalinux.org
W: http://www.alphalinux.org/
P: 1024/3EF87611 B9 F1 44 50 D3 E8 C2 80 DA E5 55 AA 56 7C 42 DA
D: DEC Alpha hacker
D: DEC Alpha hacker
D: Miscellaneous bug squisher
N: Jim Freeman
@ -1299,7 +1305,7 @@ S: P.O. Box 76, Epping
S: New South Wales, 2121
S: Australia
N: Carlos E. Gorges
N: Carlos E. Gorges
E: carlos@techlinux.com.br
D: fix smp support on cmpci driver
P: 2048G/EA3C4B19 FF31 33A6 0362 4915 B7EB E541 17D0 0379 EA3C 4B19
@ -1340,7 +1346,7 @@ E: wgreathouse@smva.com
E: wgreathouse@myfavoritei.com
D: Current Belkin USB Serial Adapter F5U103 hacker
D: Kernel hacker, embedded systems
S: 7802 Fitzwater Road
S: 7802 Fitzwater Road
S: Brecksville, OH 44141-1334
S: USA
@ -1381,7 +1387,7 @@ N: Grant Guenther
E: grant@torque.net
W: http://www.torque.net/linux-pp.html
D: original author of ppa driver for parallel port ZIP drive
D: original architect of the parallel-port sharing scheme
D: original architect of the parallel-port sharing scheme
D: PARIDE subsystem: drivers for parallel port IDE & ATAPI devices
S: 44 St. Joseph Street, Suite 506
S: Toronto, Ontario, M4Y 2W4
@ -1523,7 +1529,7 @@ N: Benjamin Herrenschmidt
E: benh@kernel.crashing.org
D: Various parts of PPC/PPC64 & PowerMac
S: 312/107 Canberra Avenue
S: Griffith, ACT 2603
S: Griffith, ACT 2603
S: Australia
N: Andreas Herrmann
@ -1825,7 +1831,7 @@ S: Hungary
N: Bernhard Kaindl
E: bkaindl@netway.at
E: edv@bartelt.via.at
D: Author of a menu based configuration tool, kmenu, which
D: Author of a menu based configuration tool, kmenu, which
D: is the predecessor of 'make menuconfig' and 'make xconfig'.
D: digiboard driver update(modularisation work and 2.1.x upd)
S: Tallak 95
@ -2016,7 +2022,7 @@ W: http://www.xos.nl/
D: IP transparent proxy support
S: X/OS Experts in Open Systems BV
S: Kruislaan 419
S: 1098 VA Amsterdam
S: 1098 VA Amsterdam
S: The Netherlands
N: Goran Koruga
@ -2088,7 +2094,7 @@ S: Germany
N: Andrzej M. Krzysztofowicz
E: ankry@mif.pg.gda.pl
D: Some 8-bit XT disk driver and devfs hacking
D: Some 8-bit XT disk driver and devfs hacking
D: Aladdin 1533/1543(C) chipset IDE
D: PIIX chipset IDE
S: ul. Matemblewska 1B/10
@ -2463,7 +2469,7 @@ E: mge@EZ-Darmstadt.Telekom.de
D: Logical Volume Manager
S: Bartningstr. 12
S: 64289 Darmstadt
S: Germany
S: Germany
N: Mark W. McClelland
E: mmcclell@bigfoot.com
@ -2538,7 +2544,7 @@ E: meskes@debian.org
P: 1024/04B6E8F5 6C 77 33 CA CC D6 22 03 AB AB 15 A3 AE AD 39 7D
D: Kernel hacker. PostgreSQL hacker. Software watchdog daemon.
D: Maintainer of several Debian packages
S: Th.-Heuss-Str. 61
S: Th.-Heuss-Str. 61
S: D-41812 Erkelenz
S: Germany
@ -2776,7 +2782,7 @@ E: neuffer@goofy.zdv.uni-mainz.de
W: http://www.i-Connect.Net/~mike/
D: Developer and maintainer of the EATA-DMA SCSI driver
D: Co-developer EATA-PIO SCSI driver
D: /proc/scsi and assorted other snippets
D: /proc/scsi and assorted other snippets
S: Zum Schiersteiner Grund 2
S: 55127 Mainz
S: Germany
@ -2843,6 +2849,10 @@ D: IPX development and support
N: Venkatesh Pallipadi (Venki)
D: x86/HPET
N: Kyungmin Park
E: kyungmin.park@samsung.com
D: Samsung S5Pv210 and Exynos4210 mobile platforms
N: David Parsons
E: orc@pell.chi.il.us
D: improved memory detection code.
@ -3010,7 +3020,7 @@ D: Embedded PowerPC 4xx/6xx/7xx/74xx support
S: Chandler, Arizona 85249
S: USA
N: Frederic Potter
N: Frederic Potter
E: fpotter@cirpack.com
D: Some PCI kernel support
@ -3443,21 +3453,21 @@ S: Klosterweg 28 / i309
S: 76131 Karlsruhe
S: Germany
N: James Simmons
N: James Simmons
E: jsimmons@infradead.org
E: jsimmons@users.sf.net
E: jsimmons@users.sf.net
D: Frame buffer device maintainer
D: input layer development
D: tty/console layer
D: various mipsel devices
S: 115 Carmel Avenue
D: various mipsel devices
S: 115 Carmel Avenue
S: El Cerrito CA 94530
S: USA
S: USA
N: Jaspreet Singh
E: jaspreet@sangoma.com
W: www.sangoma.com
D: WANPIPE drivers & API Support for Sangoma S508/FT1 cards
D: WANPIPE drivers & API Support for Sangoma S508/FT1 cards
S: Sangoma Technologies Inc.,
S: 1001 Denison Street
S: Suite 101
@ -3481,7 +3491,7 @@ N: Craig Small
E: csmall@triode.apana.org.au
E: vk2xlz@gonzo.vk2xlz.ampr.org (packet radio)
D: Gracilis PackeTwin device driver
D: RSPF daemon
D: RSPF daemon
S: 10 Stockalls Place
S: Minto, NSW, 2566
S: Australia
@ -3691,7 +3701,7 @@ N: Tsu-Sheng Tsao
E: tsusheng@scf.usc.edu
D: IGMP(Internet Group Management Protocol) version 2
S: 2F 14 ALY 31 LN 166 SEC 1 SHIH-PEI RD
S: Taipei
S: Taipei
S: Taiwan 112
S: Republic of China
S: 24335 Delta Drive
@ -3852,7 +3862,7 @@ D: Produced the Slackware distribution, updated the SVGAlib
D: patches for ghostscript, worked on color 'ls', etc.
S: 301 15th Street S.
S: Moorhead, Minnesota 56560
S: USA
S: USA
N: Jos Vos
E: jos@xos.nl
@ -3860,7 +3870,7 @@ W: http://www.xos.nl/
D: Various IP firewall updates, ipfwadm
S: X/OS Experts in Open Systems BV
S: Kruislaan 419
S: 1098 VA Amsterdam
S: 1098 VA Amsterdam
S: The Netherlands
N: Jeroen Vreeken
@ -4098,7 +4108,7 @@ S: People's Repulic of China
N: Victor Yodaiken
E: yodaiken@fsmlabs.com
D: RTLinux (RealTime Linux)
S: POB 1822
S: POB 1822
S: Socorro NM, 87801
S: USA
@ -4196,7 +4206,7 @@ D: EISA/sysfs subsystem
S: France
# Don't add your name here, unless you really _are_ after Marc
# alphabetically. Leonard used to be very proud of being the
# alphabetically. Leonard used to be very proud of being the
# last entry, and he'll get positively pissed if he can't even
# be second-to-last. (and this file really _is_ supposed to be
# in alphabetic order)

7
Documentation/admin-guide/kernel-parameters.txt
View File

@ -2858,6 +2858,8 @@
mds=off [X86]
tsx_async_abort=off [X86]
kvm.nx_huge_pages=off [X86]
no_entry_flush [PPC]
no_uaccess_flush [PPC]
Exceptions:
This does not have any effect on
@ -3186,6 +3188,8 @@
noefi Disable EFI runtime services support.
no_entry_flush [PPC] Don't flush the L1-D cache when entering the kernel.
noexec [IA-64]
noexec [X86]
@ -3235,6 +3239,9 @@
nospec_store_bypass_disable
[HW] Disable all mitigations for the Speculative Store Bypass vulnerability
no_uaccess_flush
[PPC] Don't flush the L1-D cache after accessing user data.
noxsave [BUGS=X86] Disables x86 extended register state save
and restore using xsave. The kernel will fallback to
enabling legacy floating-point and sse state.

2
Documentation/dev-tools/kunit/faq.rst
View File

@ -90,7 +90,7 @@ things to try.
re-run kunit_tool.
5. Try to run ``make ARCH=um defconfig`` before running ``kunit.py run``. This
may help clean up any residual config items which could be causing problems.
6. Finally, try running KUnit outside UML. KUnit and KUnit tests can run be
6. Finally, try running KUnit outside UML. KUnit and KUnit tests can be
built into any kernel, or can be built as a module and loaded at runtime.
Doing so should allow you to determine if UML is causing the issue you're
seeing. When tests are built-in, they will execute when the kernel boots, and

18
Documentation/dev-tools/kunit/style.rst
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@ -175,17 +175,17 @@ An example Kconfig entry:
.. code-block:: none
config FOO_KUNIT_TEST
tristate "KUnit test for foo" if !KUNIT_ALL_TESTS
depends on KUNIT
default KUNIT_ALL_TESTS
help
This builds unit tests for foo.
config FOO_KUNIT_TEST
tristate "KUnit test for foo" if !KUNIT_ALL_TESTS
depends on KUNIT
default KUNIT_ALL_TESTS
help
This builds unit tests for foo.
For more information on KUnit and unit tests in general, please refer
to the KUnit documentation in Documentation/dev-tools/kunit
For more information on KUnit and unit tests in general, please refer
to the KUnit documentation in Documentation/dev-tools/kunit/.
If unsure, say N
If unsure, say N.
Test File and Module Names

10
Documentation/dev-tools/kunit/usage.rst
View File

@ -92,7 +92,7 @@ behavior of a function called ``add``; the first parameter is always of type
the second parameter, in this case, is what the value is expected to be; the
last value is what the value actually is. If ``add`` passes all of these
expectations, the test case, ``add_test_basic`` will pass; if any one of these
expectations fail, the test case will fail.
expectations fails, the test case will fail.
It is important to understand that a test case *fails* when any expectation is
violated; however, the test will continue running, potentially trying other
@ -202,7 +202,7 @@ Example:
kunit_test_suite(example_test_suite);
In the above example the test suite, ``example_test_suite``, would run the test
cases ``example_test_foo``, ``example_test_bar``, and ``example_test_baz``,
cases ``example_test_foo``, ``example_test_bar``, and ``example_test_baz``;
each would have ``example_test_init`` called immediately before it and would
have ``example_test_exit`` called immediately after it.
``kunit_test_suite(example_test_suite)`` registers the test suite with the
@ -229,7 +229,7 @@ through some sort of indirection where a function is exposed as part of an API
such that the definition of that function can be changed without affecting the
rest of the code base. In the kernel this primarily comes from two constructs,
classes, structs that contain function pointers that are provided by the
implementer, and architecture specific functions which have definitions selected
implementer, and architecture-specific functions which have definitions selected
at compile time.
Classes
@ -459,7 +459,7 @@ 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.
@ -599,7 +599,7 @@ writing normal KUnit tests. One special caveat is that you have to reset
hardware state in between test cases; if this is not possible, you may only be
able to run one test case per invocation.
.. TODO(brendanhiggins@google.com): Add an actual example of an architecture
.. TODO(brendanhiggins@google.com): Add an actual example of an architecture-
dependent KUnit test.
KUnit debugfs representation

2
Documentation/devicetree/bindings/clock/imx5-clock.yaml
View File

@ -57,7 +57,7 @@ examples:
};
can@53fc8000 {
compatible = "fsl,imx53-flexcan", "fsl,p1010-flexcan";
compatible = "fsl,imx53-flexcan", "fsl,imx25-flexcan";
reg = <0x53fc8000 0x4000>;
interrupts = <82>;
clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>, <&clks IMX5_CLK_CAN1_SERIAL_GATE>;

18
Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
View File

@ -20,14 +20,17 @@ properties:
- fsl,imx8qm-flexcan
- fsl,imx8mp-flexcan
- fsl,imx6q-flexcan
- fsl,imx53-flexcan
- fsl,imx35-flexcan
- fsl,imx28-flexcan
- fsl,imx25-flexcan
- fsl,p1010-flexcan
- fsl,vf610-flexcan
- fsl,ls1021ar2-flexcan
- fsl,lx2160ar1-flexcan
- items:
- enum:
- fsl,imx53-flexcan
- fsl,imx35-flexcan
- const: fsl,imx25-flexcan
- items:
- enum:
- fsl,imx7d-flexcan
@ -81,11 +84,12 @@ properties:
req_bit is the bit offset of CAN stop request.
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
- description: The 'gpr' is the phandle to general purpose register node.
- description: The 'req_gpr' is the gpr register offset of CAN stop request.
maximum: 0xff
- description: The 'req_bit' is the bit offset of CAN stop request.
maximum: 0x1f
items:
- description: The 'gpr' is the phandle to general purpose register node.
- description: The 'req_gpr' is the gpr register offset of CAN stop request.
maximum: 0xff
- description: The 'req_bit' is the bit offset of CAN stop request.
maximum: 0x1f
fsl,clk-source:
description: |

9
Documentation/xtensa/mmu.rst
View File

@ -82,7 +82,8 @@ Default MMUv2-compatible layout::
+------------------+
| VMALLOC area | VMALLOC_START 0xc0000000 128MB - 64KB
+------------------+ VMALLOC_END
| Cache aliasing | TLBTEMP_BASE_1 0xc7ff0000 DCACHE_WAY_SIZE
+------------------+
| Cache aliasing | TLBTEMP_BASE_1 0xc8000000 DCACHE_WAY_SIZE
| remap area 1 |
+------------------+
| Cache aliasing | TLBTEMP_BASE_2 DCACHE_WAY_SIZE
@ -124,7 +125,8 @@ Default MMUv2-compatible layout::
+------------------+
| VMALLOC area | VMALLOC_START 0xa0000000 128MB - 64KB
+------------------+ VMALLOC_END
| Cache aliasing | TLBTEMP_BASE_1 0xa7ff0000 DCACHE_WAY_SIZE
+------------------+
| Cache aliasing | TLBTEMP_BASE_1 0xa8000000 DCACHE_WAY_SIZE
| remap area 1 |
+------------------+
| Cache aliasing | TLBTEMP_BASE_2 DCACHE_WAY_SIZE
@ -167,7 +169,8 @@ Default MMUv2-compatible layout::
+------------------+
| VMALLOC area | VMALLOC_START 0x90000000 128MB - 64KB
+------------------+ VMALLOC_END
| Cache aliasing | TLBTEMP_BASE_1 0x97ff0000 DCACHE_WAY_SIZE
+------------------+
| Cache aliasing | TLBTEMP_BASE_1 0x98000000 DCACHE_WAY_SIZE
| remap area 1 |
+------------------+
| Cache aliasing | TLBTEMP_BASE_2 DCACHE_WAY_SIZE

54
MAINTAINERS
View File

@ -1546,6 +1546,7 @@ F: drivers/clk/sunxi/
ARM/Allwinner sunXi SoC support
M: Maxime Ripard <mripard@kernel.org>
M: Chen-Yu Tsai <wens@csie.org>
R: Jernej Skrabec <jernej.skrabec@siol.net>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git
@ -2374,7 +2375,7 @@ F: drivers/i2c/busses/i2c-rk3x.c
F: sound/soc/rockchip/
N: rockchip
ARM/SAMSUNG EXYNOS ARM ARCHITECTURES
ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES
M: Krzysztof Kozlowski <krzk@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org
@ -2403,15 +2404,7 @@ N: s3c2410
N: s3c64xx
N: s5pv210
ARM/SAMSUNG MOBILE MACHINE SUPPORT
M: Kyungmin Park <kyungmin.park@samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-s5pv210/
ARM/SAMSUNG S5P SERIES 2D GRAPHICS ACCELERATION (G2D) SUPPORT
M: Kyungmin Park <kyungmin.park@samsung.com>
M: Kamil Debski <kamil@wypas.org>
M: Andrzej Hajda <a.hajda@samsung.com>
L: linux-arm-kernel@lists.infradead.org
L: linux-media@vger.kernel.org
@ -2436,9 +2429,6 @@ S: Maintained
F: drivers/media/platform/s5p-jpeg/
ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
M: Kyungmin Park <kyungmin.park@samsung.com>
M: Kamil Debski <kamil@wypas.org>
M: Jeongtae Park <jtp.park@samsung.com>
M: Andrzej Hajda <a.hajda@samsung.com>
L: linux-arm-kernel@lists.infradead.org
L: linux-media@vger.kernel.org
@ -3243,10 +3233,10 @@ F: drivers/iio/accel/bma400*
BPF (Safe dynamic programs and tools)
M: Alexei Starovoitov <ast@kernel.org>
M: Daniel Borkmann <daniel@iogearbox.net>
M: Andrii Nakryiko <andrii@kernel.org>
R: Martin KaFai Lau <kafai@fb.com>
R: Song Liu <songliubraving@fb.com>
R: Yonghong Song <yhs@fb.com>
R: Andrii Nakryiko <andrii@kernel.org>
R: John Fastabend <john.fastabend@gmail.com>
R: KP Singh <kpsingh@chromium.org>
L: netdev@vger.kernel.org
@ -4710,7 +4700,7 @@ T: git git://linuxtv.org/anttip/media_tree.git
F: drivers/media/dvb-frontends/cxd2820r*
CXGB3 ETHERNET DRIVER (CXGB3)
M: Vishal Kulkarni <vishal@chelsio.com>
M: Raju Rangoju <rajur@chelsio.com>
L: netdev@vger.kernel.org
S: Supported
W: http://www.chelsio.com
@ -4742,7 +4732,7 @@ W: http://www.chelsio.com
F: drivers/net/ethernet/chelsio/inline_crypto/
CXGB4 ETHERNET DRIVER (CXGB4)
M: Vishal Kulkarni <vishal@chelsio.com>
M: Raju Rangoju <rajur@chelsio.com>
L: netdev@vger.kernel.org
S: Supported
W: http://www.chelsio.com
@ -4764,7 +4754,7 @@ F: drivers/infiniband/hw/cxgb4/
F: include/uapi/rdma/cxgb4-abi.h
CXGB4VF ETHERNET DRIVER (CXGB4VF)
M: Vishal Kulkarni <vishal@gmail.com>
M: Raju Rangoju <rajur@chelsio.com>
L: netdev@vger.kernel.org
S: Supported
W: http://www.chelsio.com
@ -9836,13 +9826,6 @@ S: Maintained
F: arch/mips/lantiq
F: drivers/soc/lantiq
LAPB module
L: linux-x25@vger.kernel.org
S: Orphan
F: Documentation/networking/lapb-module.rst
F: include/*/lapb.h
F: net/lapb/
LASI 53c700 driver for PARISC
M: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
L: linux-scsi@vger.kernel.org
@ -14205,7 +14188,6 @@ F: drivers/media/usb/pwc/*
F: include/trace/events/pwc.h
PWM FAN DRIVER
M: Kamil Debski <kamil@wypas.org>
M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
L: linux-hwmon@vger.kernel.org
S: Supported
@ -15419,14 +15401,12 @@ F: Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
F: drivers/nfc/s3fwrn5
SAMSUNG S5C73M3 CAMERA DRIVER
M: Kyungmin Park <kyungmin.park@samsung.com>
M: Andrzej Hajda <a.hajda@samsung.com>
L: linux-media@vger.kernel.org
S: Supported
F: drivers/media/i2c/s5c73m3/*
SAMSUNG S5K5BAF CAMERA DRIVER
M: Kyungmin Park <kyungmin.park@samsung.com>
M: Andrzej Hajda <a.hajda@samsung.com>
L: linux-media@vger.kernel.org
S: Supported
@ -15444,7 +15424,6 @@ F: Documentation/devicetree/bindings/crypto/samsung-sss.yaml
F: drivers/crypto/s5p-sss.c
SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
M: Kyungmin Park <kyungmin.park@samsung.com>
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
L: linux-media@vger.kernel.org
S: Supported
@ -15492,7 +15471,6 @@ T: git https://github.com/lmajewski/linux-samsung-thermal.git
F: drivers/thermal/samsung/
SAMSUNG USB2 PHY DRIVER
M: Kamil Debski <kamil@wypas.org>
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
L: linux-kernel@vger.kernel.org
S: Supported
@ -18167,6 +18145,14 @@ L: linux-usb@vger.kernel.org
S: Supported
F: drivers/usb/class/usblp.c
USB RAW GADGET DRIVER
R: Andrey Konovalov <andreyknvl@gmail.com>
L: linux-usb@vger.kernel.org
S: Maintained
F: Documentation/usb/raw-gadget.rst
F: drivers/usb/gadget/legacy/raw_gadget.c
F: include/uapi/linux/usb/raw_gadget.h
USB QMI WWAN NETWORK DRIVER
M: Bjørn Mork <bjorn@mork.no>
L: netdev@vger.kernel.org
@ -18980,12 +18966,18 @@ L: linux-kernel@vger.kernel.org
S: Maintained
N: axp[128]
X.25 NETWORK LAYER
M: Andrew Hendry <andrew.hendry@gmail.com>
X.25 STACK
M: Martin Schiller <ms@dev.tdt.de>
L: linux-x25@vger.kernel.org
S: Odd Fixes
S: Maintained
F: Documentation/networking/lapb-module.rst
F: Documentation/networking/x25*
F: drivers/net/wan/hdlc_x25.c
F: drivers/net/wan/lapbether.c
F: include/*/lapb.h
F: include/net/x25*
F: include/uapi/linux/x25.h
F: net/lapb/
F: net/x25/
X86 ARCHITECTURE (32-BIT AND 64-BIT)

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 10
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc4
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*

1
arch/arm/boot/dts/exynos4412-odroid-common.dtsi
View File

@ -122,7 +122,6 @@
};
&clock {
clocks = <&clock CLK_XUSBXTI>;
assigned-clocks = <&clock CLK_FOUT_EPLL>;
assigned-clock-rates = <45158401>;
};

2
arch/arm/boot/dts/imx50-evk.dts
View File

@ -59,7 +59,7 @@
MX50_PAD_CSPI_MISO__CSPI_MISO 0x00
MX50_PAD_CSPI_MOSI__CSPI_MOSI 0x00
MX50_PAD_CSPI_SS0__GPIO4_11 0xc4
MX50_PAD_ECSPI1_MOSI__CSPI_SS1 0xf4
MX50_PAD_ECSPI1_MOSI__GPIO4_13 0x84
>;
};

4
arch/arm/boot/dts/imx6q-prti6q.dts
View File

@ -213,8 +213,8 @@
#size-cells = <0>;
/* Microchip KSZ9031RNX PHY */
rgmii_phy: ethernet-phy@4 {
reg = <4>;
rgmii_phy: ethernet-phy@0 {
reg = <0>;
interrupts-extended = <&gpio1 28 IRQ_TYPE_LEVEL_LOW>;
reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
reset-assert-us = <10000>;

2
arch/arm/boot/dts/imx6qdl-udoo.dtsi
View File

@ -98,7 +98,7 @@
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

19
arch/arm/boot/dts/stm32mp15xx-dhcom-pdk2.dtsi
View File

@ -46,6 +46,16 @@
linux,code = <KEY_A>;
gpios = <&gpiof 3 GPIO_ACTIVE_LOW>;
};
/*
* The EXTi IRQ line 0 is shared with PMIC,
* so mark this as polled GPIO key.
*/
button-2 {
label = "TA3-GPIO-C";
linux,code = <KEY_C>;
gpios = <&gpiog 0 GPIO_ACTIVE_LOW>;
};
};
gpio-keys {
@ -59,13 +69,6 @@
wakeup-source;
};
button-2 {
label = "TA3-GPIO-C";
linux,code = <KEY_C>;
gpios = <&gpioi 11 GPIO_ACTIVE_LOW>;
wakeup-source;
};
button-3 {
label = "TA4-GPIO-D";
linux,code = <KEY_D>;
@ -79,7 +82,7 @@
led-0 {
label = "green:led5";
gpios = <&gpiog 2 GPIO_ACTIVE_HIGH>;
gpios = <&gpioc 6 GPIO_ACTIVE_HIGH>;
default-state = "off";
};

2
arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
View File

@ -68,6 +68,7 @@
gpio = <&gpiog 3 GPIO_ACTIVE_LOW>;
regulator-always-on;
regulator-boot-on;
vin-supply = <&vdd>;
};
};
@ -202,6 +203,7 @@
vdda: ldo1 {
regulator-name = "vdda";
regulator-always-on;
regulator-min-microvolt = <2900000>;
regulator-max-microvolt = <2900000>;
interrupts = <IT_CURLIM_LDO1 0>;

4
arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
View File

@ -21,6 +21,10 @@
};
};
&dts {
status = "okay";
};
&i2c4 {
pinctrl-names = "default";
pinctrl-0 = <&i2c4_pins_a>;

2
arch/arm/boot/dts/sun6i-a31-hummingbird.dts
View File

@ -154,7 +154,7 @@
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

2
arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
View File

@ -130,7 +130,7 @@
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-supply = <&reg_gmac_3v3>;
status = "okay";
};

2
arch/arm/boot/dts/sun7i-a20-cubietruck.dts
View File

@ -151,7 +151,7 @@
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

2
arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
View File

@ -131,7 +131,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_sw>;
phy-handle = <&rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
allwinner,rx-delay-ps = <700>;
allwinner,tx-delay-ps = <700>;
status = "okay";

2
arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
View File

@ -183,7 +183,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_dldo4>;
phy-handle = <&rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

5
arch/arm/boot/dts/sun8i-h3-orangepi-pc-plus.dts
View File

@ -53,11 +53,6 @@
};
};
&emac {
/* LEDs changed to active high on the plus */
/delete-property/ allwinner,leds-active-low;
};
&mmc1 {
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;

2
arch/arm/boot/dts/sun8i-h3-orangepi-plus2e.dts
View File

@ -67,7 +67,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_gmac_3v3>;
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

2
arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
View File

@ -129,7 +129,7 @@
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-supply = <&reg_dc1sw>;
status = "okay";
};

2
arch/arm/boot/dts/sun9i-a80-cubieboard4.dts
View File

@ -129,7 +129,7 @@
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-supply = <&reg_cldo1>;
status = "okay";
};

2
arch/arm/boot/dts/sun9i-a80-optimus.dts
View File

@ -124,7 +124,7 @@
pinctrl-names = "default";
pinctrl-0 = <&gmac_rgmii_pins>;
phy-handle = <&phy1>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-supply = <&reg_cldo1>;
status = "okay";
};

2
arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
View File

@ -126,7 +126,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_gmac_3v3>;
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

3
arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
View File

@ -406,6 +406,9 @@
};
};
&mdio1 {
clock-frequency = <5000000>;
};
&iomuxc {
pinctrl_gpio_e6185_eeprom_sel: pinctrl-gpio-e6185-eeprom-spi0 {

22
arch/arm/include/asm/kprobes.h
View File

@ -44,20 +44,20 @@ int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);
/* optinsn template addresses */
extern __visible kprobe_opcode_t optprobe_template_entry;
extern __visible kprobe_opcode_t optprobe_template_val;
extern __visible kprobe_opcode_t optprobe_template_call;
extern __visible kprobe_opcode_t optprobe_template_end;
extern __visible kprobe_opcode_t optprobe_template_sub_sp;
extern __visible kprobe_opcode_t optprobe_template_add_sp;
extern __visible kprobe_opcode_t optprobe_template_restore_begin;
extern __visible kprobe_opcode_t optprobe_template_restore_orig_insn;
extern __visible kprobe_opcode_t optprobe_template_restore_end;
extern __visible kprobe_opcode_t optprobe_template_entry[];
extern __visible kprobe_opcode_t optprobe_template_val[];
extern __visible kprobe_opcode_t optprobe_template_call[];
extern __visible kprobe_opcode_t optprobe_template_end[];
extern __visible kprobe_opcode_t optprobe_template_sub_sp[];
extern __visible kprobe_opcode_t optprobe_template_add_sp[];
extern __visible kprobe_opcode_t optprobe_template_restore_begin[];
extern __visible kprobe_opcode_t optprobe_template_restore_orig_insn[];
extern __visible kprobe_opcode_t optprobe_template_restore_end[];
#define MAX_OPTIMIZED_LENGTH 4
#define MAX_OPTINSN_SIZE \
((unsigned long)&optprobe_template_end - \
(unsigned long)&optprobe_template_entry)
((unsigned long)optprobe_template_end - \
(unsigned long)optprobe_template_entry)
#define RELATIVEJUMP_SIZE 4
struct arch_optimized_insn {

3
arch/arm/kernel/perf_regs.c
View File

@ -32,8 +32,7 @@ u64 perf_reg_abi(struct task_struct *task)
}
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs,
struct pt_regs *regs_user_copy)
struct pt_regs *regs)
{
regs_user->regs = task_pt_regs(current);
regs_user->abi = perf_reg_abi(current);

18
arch/arm/probes/kprobes/opt-arm.c
View File

@ -85,21 +85,21 @@ asm (
"optprobe_template_end:\n");
#define TMPL_VAL_IDX \
((unsigned long *)&optprobe_template_val - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_val - (unsigned long *)optprobe_template_entry)
#define TMPL_CALL_IDX \
((unsigned long *)&optprobe_template_call - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_call - (unsigned long *)optprobe_template_entry)
#define TMPL_END_IDX \
((unsigned long *)&optprobe_template_end - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_end - (unsigned long *)optprobe_template_entry)
#define TMPL_ADD_SP \
((unsigned long *)&optprobe_template_add_sp - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_add_sp - (unsigned long *)optprobe_template_entry)
#define TMPL_SUB_SP \
((unsigned long *)&optprobe_template_sub_sp - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_sub_sp - (unsigned long *)optprobe_template_entry)
#define TMPL_RESTORE_BEGIN \
((unsigned long *)&optprobe_template_restore_begin - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_restore_begin - (unsigned long *)optprobe_template_entry)
#define TMPL_RESTORE_ORIGN_INSN \
((unsigned long *)&optprobe_template_restore_orig_insn - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_restore_orig_insn - (unsigned long *)optprobe_template_entry)
#define TMPL_RESTORE_END \
((unsigned long *)&optprobe_template_restore_end - (unsigned long *)&optprobe_template_entry)
((unsigned long *)optprobe_template_restore_end - (unsigned long *)optprobe_template_entry)
/*
* ARM can always optimize an instruction when using ARM ISA, except
@ -234,7 +234,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *or
}
/* Copy arch-dep-instance from template. */
memcpy(code, (unsigned long *)&optprobe_template_entry,
memcpy(code, (unsigned long *)optprobe_template_entry,
TMPL_END_IDX * sizeof(kprobe_opcode_t));
/* Adjust buffer according to instruction. */

2
arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
View File

@ -105,7 +105,7 @@
&emac {
pinctrl-names = "default";
pinctrl-0 = <&rgmii_pins>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-handle = <&ext_rgmii_phy>;
phy-supply = <&reg_dc1sw>;
status = "okay";

2
arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts
View File

@ -120,7 +120,7 @@
&emac {
pinctrl-names = "default";
pinctrl-0 = <&rgmii_pins>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-handle = <&ext_rgmii_phy>;
phy-supply = <&reg_gmac_3v3>;
status = "okay";

2
arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
View File

@ -13,7 +13,7 @@
&emac {
pinctrl-names = "default";
pinctrl-0 = <&rgmii_pins>;
phy-mode = "rgmii";
phy-mode = "rgmii-txid";
phy-handle = <&ext_rgmii_phy>;
status = "okay";
};

3
arch/arm64/boot/dts/allwinner/sun50i-a64-pinetab.dts
View File

@ -122,9 +122,6 @@
status = "okay";
port {
#address-cells = <1>;
#size-cells = <0>;
csi_ep: endpoint {
remote-endpoint = <&ov5640_ep>;
bus-width = <8>;

2
arch/arm64/boot/dts/allwinner/sun50i-h5-libretech-all-h5-cc.dts
View File

@ -36,7 +36,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_gmac_3v3>;
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
/delete-property/ allwinner,leds-active-low;
status = "okay";
};

2
arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
View File

@ -123,7 +123,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_gmac_3v3>;
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

2
arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
View File

@ -124,7 +124,7 @@
pinctrl-0 = <&emac_rgmii_pins>;
phy-supply = <&reg_gmac_3v3>;
phy-handle = <&ext_rgmii_phy>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
status = "okay";
};

2
arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
View File

@ -97,7 +97,7 @@
&emac {
pinctrl-names = "default";
pinctrl-0 = <&ext_rgmii_pins>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-handle = <&ext_rgmii_phy>;
phy-supply = <&reg_aldo2>;
status = "okay";

2
arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
View File

@ -100,7 +100,7 @@
&emac {
pinctrl-names = "default";
pinctrl-0 = <&ext_rgmii_pins>;
phy-mode = "rgmii";
phy-mode = "rgmii-id";
phy-handle = <&ext_rgmii_phy>;
phy-supply = <&reg_gmac_3v3>;
allwinner,rx-delay-ps = <200>;

2
arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
View File

@ -159,7 +159,7 @@
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "n25q00a";
compatible = "micron,mt25qu02g", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <100000000>;

2
arch/arm64/boot/dts/altera/socfpga_stratix10_socdk_nand.dts
View File

@ -192,7 +192,7 @@
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "n25q00a";
compatible = "micron,mt25qu02g", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <100000000>;

1
arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
View File

@ -1012,6 +1012,7 @@
compatible = "fsl,ls1028a-rcpm", "fsl,qoriq-rcpm-2.1+";
reg = <0x0 0x1e34040 0x0 0x1c>;
#fsl,rcpm-wakeup-cells = <7>;
little-endian;
};
ftm_alarm0: timer@2800000 {

1
arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
View File

@ -805,6 +805,7 @@
compatible = "fsl,ls1088a-rcpm", "fsl,qoriq-rcpm-2.1+";
reg = <0x0 0x1e34040 0x0 0x18>;
#fsl,rcpm-wakeup-cells = <6>;
little-endian;
};
ftm_alarm0: timer@2800000 {

1
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
View File

@ -892,6 +892,7 @@
compatible = "fsl,ls208xa-rcpm", "fsl,qoriq-rcpm-2.1+";
reg = <0x0 0x1e34040 0x0 0x18>;
#fsl,rcpm-wakeup-cells = <6>;
little-endian;
};
ftm_alarm0: timer@2800000 {

2
arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
View File

@ -72,6 +72,7 @@
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
@ -210,6 +211,7 @@
host-wakeup-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>;
device-wakeup-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
clocks = <&osc_32k>;
max-speed = <4000000>;
clock-names = "extclk";
};
};

1
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
View File

@ -121,6 +121,7 @@
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

9
arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
View File

@ -135,13 +135,10 @@
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio2>;
/*
* The interrupt is not correct. It should be level low,
* however with internal pull up this causes IRQ storm.
*/
interrupts = <8 IRQ_TYPE_EDGE_RISING>;
interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
rohm,reset-snvs-powered;
#clock-cells = <0>;
@ -398,7 +395,7 @@
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8 0x41
MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8 0x141
>;
};

2
arch/arm64/boot/dts/freescale/imx8mm.dtsi
View File

@ -129,7 +129,7 @@
opp-1600000000 {
opp-hz = /bits/ 64 <1600000000>;
opp-microvolt = <900000>;
opp-microvolt = <950000>;
opp-supported-hw = <0xc>, <0x7>;
clock-latency-ns = <150000>;
opp-suspend;

1
arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
View File

@ -53,6 +53,7 @@
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

1
arch/arm64/boot/dts/freescale/imx8mn-evk.dts
View File

@ -18,6 +18,7 @@
pmic: pmic@25 {
compatible = "nxp,pca9450b";
reg = <0x25>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

9
arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
View File

@ -116,13 +116,10 @@
pmic@4b {
compatible = "rohm,bd71847";
reg = <0x4b>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio2>;
/*
* The interrupt is not correct. It should be level low,
* however with internal pull up this causes IRQ storm.
*/
interrupts = <8 IRQ_TYPE_EDGE_RISING>;
interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
rohm,reset-snvs-powered;
regulators {
@ -388,7 +385,7 @@
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8 0x101
MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8 0x141
>;
};

30
arch/arm64/boot/dts/freescale/imx8mn.dtsi
View File

@ -790,28 +790,6 @@
#index-cells = <1>;
reg = <0x32e40200 0x200>;
};
usbotg2: usb@32e50000 {
compatible = "fsl,imx8mn-usb", "fsl,imx7d-usb";
reg = <0x32e50000 0x200>;
interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MN_CLK_USB1_CTRL_ROOT>;
clock-names = "usb1_ctrl_root_clk";
assigned-clocks = <&clk IMX8MN_CLK_USB_BUS>,
<&clk IMX8MN_CLK_USB_CORE_REF>;
assigned-clock-parents = <&clk IMX8MN_SYS_PLL2_500M>,
<&clk IMX8MN_SYS_PLL1_100M>;
fsl,usbphy = <&usbphynop2>;
fsl,usbmisc = <&usbmisc2 0>;
status = "disabled";
};
usbmisc2: usbmisc@32e50200 {
compatible = "fsl,imx8mn-usbmisc", "fsl,imx7d-usbmisc";
#index-cells = <1>;
reg = <0x32e50200 0x200>;
};
};
dma_apbh: dma-controller@33000000 {
@ -876,12 +854,4 @@
assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_100M>;
clock-names = "main_clk";
};
usbphynop2: usbphynop2 {
compatible = "usb-nop-xceiv";
clocks = <&clk IMX8MN_CLK_USB_PHY_REF>;
assigned-clocks = <&clk IMX8MN_CLK_USB_PHY_REF>;
assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_100M>;
clock-names = "main_clk";
};
};

1
arch/arm64/boot/dts/freescale/qoriq-fman3-0.dtsi
View File

@ -19,6 +19,7 @@ fman0: fman@1a00000 {
clock-names = "fmanclk";
fsl,qman-channel-range = <0x800 0x10>;
ptimer-handle = <&ptp_timer0>;
dma-coherent;
muram@0 {
compatible = "fsl,fman-muram";

2
arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts
View File

@ -110,7 +110,7 @@
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "mt25qu02g";
compatible = "micron,mt25qu02g", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <100000000>;

6
arch/arm64/boot/dts/renesas/r8a774e1.dtsi
View File

@ -28,6 +28,12 @@
clock-frequency = <0>;
};
audio_clk_b: audio_clk_b {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <0>;
};
audio_clk_c: audio_clk_c {
compatible = "fixed-clock";
#clock-cells = <0>;

2
arch/arm64/include/asm/cpufeature.h
View File

@ -268,6 +268,8 @@ extern struct arm64_ftr_reg arm64_ftr_reg_ctrel0;
/*
* CPU feature detected at boot time based on feature of one or more CPUs.
* All possible conflicts for a late CPU are ignored.
* NOTE: this means that a late CPU with the feature will *not* cause the
* capability to be advertised by cpus_have_*cap()!
*/
#define ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE \
(ARM64_CPUCAP_SCOPE_LOCAL_CPU | \

4
arch/arm64/include/asm/cputype.h
View File

@ -86,6 +86,8 @@
#define QCOM_CPU_PART_FALKOR_V1 0x800
#define QCOM_CPU_PART_FALKOR 0xC00
#define QCOM_CPU_PART_KRYO 0x200
#define QCOM_CPU_PART_KRYO_2XX_GOLD 0x800
#define QCOM_CPU_PART_KRYO_2XX_SILVER 0x801
#define QCOM_CPU_PART_KRYO_3XX_SILVER 0x803
#define QCOM_CPU_PART_KRYO_4XX_GOLD 0x804
#define QCOM_CPU_PART_KRYO_4XX_SILVER 0x805
@ -116,6 +118,8 @@
#define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1)
#define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR)
#define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO)
#define MIDR_QCOM_KRYO_2XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_2XX_GOLD)
#define MIDR_QCOM_KRYO_2XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_2XX_SILVER)
#define MIDR_QCOM_KRYO_3XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_3XX_SILVER)
#define MIDR_QCOM_KRYO_4XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_GOLD)
#define MIDR_QCOM_KRYO_4XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_SILVER)

2
arch/arm64/include/asm/kvm_host.h
View File

@ -118,6 +118,8 @@ struct kvm_arch {
*/
unsigned long *pmu_filter;
unsigned int pmuver;
u8 pfr0_csv2;
};
struct kvm_vcpu_fault_info {

4
arch/arm64/include/asm/sysreg.h
View File

@ -372,6 +372,8 @@
#define SYS_CONTEXTIDR_EL1 sys_reg(3, 0, 13, 0, 1)
#define SYS_TPIDR_EL1 sys_reg(3, 0, 13, 0, 4)
#define SYS_SCXTNUM_EL1 sys_reg(3, 0, 13, 0, 7)
#define SYS_CNTKCTL_EL1 sys_reg(3, 0, 14, 1, 0)
#define SYS_CCSIDR_EL1 sys_reg(3, 1, 0, 0, 0)
@ -404,6 +406,8 @@
#define SYS_TPIDR_EL0 sys_reg(3, 3, 13, 0, 2)
#define SYS_TPIDRRO_EL0 sys_reg(3, 3, 13, 0, 3)
#define SYS_SCXTNUM_EL0 sys_reg(3, 3, 13, 0, 7)
/* Definitions for system register interface to AMU for ARMv8.4 onwards */
#define SYS_AM_EL0(crm, op2) sys_reg(3, 3, 13, (crm), (op2))
#define SYS_AMCR_EL0 SYS_AM_EL0(2, 0)

2
arch/arm64/kernel/cpu_errata.c
View File

@ -299,6 +299,8 @@ static const struct midr_range erratum_845719_list[] = {
MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
/* Brahma-B53 r0p[0] */
MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
/* Kryo2XX Silver rAp4 */
MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
{},
};
#endif

2
arch/arm64/kernel/cpufeature.c
View File

@ -1337,6 +1337,8 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_GOLD),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
{ /* sentinel */ }

2
arch/arm64/kernel/kexec_image.c
View File

@ -127,7 +127,7 @@ static void *image_load(struct kimage *image,
kernel_segment->mem, kbuf.bufsz,
kernel_segment->memsz);
return 0;
return NULL;
}
#ifdef CONFIG_KEXEC_IMAGE_VERIFY_SIG

3
arch/arm64/kernel/perf_regs.c
View File

@ -73,8 +73,7 @@ u64 perf_reg_abi(struct task_struct *task)
}
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs,
struct pt_regs *regs_user_copy)
struct pt_regs *regs)
{
regs_user->regs = task_pt_regs(current);
regs_user->abi = perf_reg_abi(current);

5
arch/arm64/kernel/process.c
View File

@ -522,14 +522,13 @@ static void erratum_1418040_thread_switch(struct task_struct *prev,
bool prev32, next32;
u64 val;
if (!(IS_ENABLED(CONFIG_ARM64_ERRATUM_1418040) &&
cpus_have_const_cap(ARM64_WORKAROUND_1418040)))
if (!IS_ENABLED(CONFIG_ARM64_ERRATUM_1418040))
return;
prev32 = is_compat_thread(task_thread_info(prev));
next32 = is_compat_thread(task_thread_info(next));
if (prev32 == next32)
if (prev32 == next32 || !this_cpu_has_cap(ARM64_WORKAROUND_1418040))
return;
val = read_sysreg(cntkctl_el1);

1
arch/arm64/kernel/proton-pack.c
View File

@ -118,6 +118,7 @@ static enum mitigation_state spectre_v2_get_cpu_hw_mitigation_state(void)
MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_2XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
{ /* sentinel */ }

5
arch/arm64/kernel/psci.c
View File

@ -66,7 +66,6 @@ static int cpu_psci_cpu_disable(unsigned int cpu)
static void cpu_psci_cpu_die(unsigned int cpu)
{
int ret;
/*
* There are no known implementations of PSCI actually using the
* power state field, pass a sensible default for now.
@ -74,9 +73,7 @@ static void cpu_psci_cpu_die(unsigned int cpu)
u32 state = PSCI_POWER_STATE_TYPE_POWER_DOWN <<
PSCI_0_2_POWER_STATE_TYPE_SHIFT;
ret = psci_ops.cpu_off(state);
pr_crit("unable to power off CPU%u (%d)\n", cpu, ret);
psci_ops.cpu_off(state);
}
static int cpu_psci_cpu_kill(unsigned int cpu)

1
arch/arm64/kernel/smp.c
View File

@ -413,6 +413,7 @@ void cpu_die_early(void)
/* Mark this CPU absent */
set_cpu_present(cpu, 0);
rcu_report_dead(cpu);
if (IS_ENABLED(CONFIG_HOTPLUG_CPU)) {
update_cpu_boot_status(CPU_KILL_ME);

16
arch/arm64/kvm/arm.c
View File

@ -102,6 +102,20 @@ static int kvm_arm_default_max_vcpus(void)
return vgic_present ? kvm_vgic_get_max_vcpus() : KVM_MAX_VCPUS;
}
static void set_default_csv2(struct kvm *kvm)
{
/*
* The default is to expose CSV2 == 1 if the HW isn't affected.
* Although this is a per-CPU feature, we make it global because
* asymmetric systems are just a nuisance.
*
* Userspace can override this as long as it doesn't promise
* the impossible.
*/
if (arm64_get_spectre_v2_state() == SPECTRE_UNAFFECTED)
kvm->arch.pfr0_csv2 = 1;
}
/**
* kvm_arch_init_vm - initializes a VM data structure
* @kvm: pointer to the KVM struct
@ -127,6 +141,8 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
/* The maximum number of VCPUs is limited by the host's GIC model */
kvm->arch.max_vcpus = kvm_arm_default_max_vcpus();
set_default_csv2(kvm);
return ret;
out_free_stage2_pgd:
kvm_free_stage2_pgd(&kvm->arch.mmu);

111
arch/arm64/kvm/sys_regs.c
View File

@ -1038,8 +1038,8 @@ static bool access_pmuserenr(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
{ SYS_DESC(SYS_PMEVTYPERn_EL0(n)), \
access_pmu_evtyper, reset_unknown, (PMEVTYPER0_EL0 + n), }
static bool access_amu(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
const struct sys_reg_desc *r)
static bool undef_access(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
kvm_inject_undefined(vcpu);
@ -1047,24 +1047,10 @@ static bool access_amu(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
}
/* Macro to expand the AMU counter and type registers*/
#define AMU_AMEVCNTR0_EL0(n) { SYS_DESC(SYS_AMEVCNTR0_EL0(n)), access_amu }
#define AMU_AMEVTYPER0_EL0(n) { SYS_DESC(SYS_AMEVTYPER0_EL0(n)), access_amu }
#define AMU_AMEVCNTR1_EL0(n) { SYS_DESC(SYS_AMEVCNTR1_EL0(n)), access_amu }
#define AMU_AMEVTYPER1_EL0(n) { SYS_DESC(SYS_AMEVTYPER1_EL0(n)), access_amu }
static bool trap_ptrauth(struct kvm_vcpu *vcpu,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
/*
* If we land here, that is because we didn't fixup the access on exit
* by allowing the PtrAuth sysregs. The only way this happens is when
* the guest does not have PtrAuth support enabled.
*/
kvm_inject_undefined(vcpu);
return false;
}
#define AMU_AMEVCNTR0_EL0(n) { SYS_DESC(SYS_AMEVCNTR0_EL0(n)), undef_access }
#define AMU_AMEVTYPER0_EL0(n) { SYS_DESC(SYS_AMEVTYPER0_EL0(n)), undef_access }
#define AMU_AMEVCNTR1_EL0(n) { SYS_DESC(SYS_AMEVCNTR1_EL0(n)), undef_access }
#define AMU_AMEVTYPER1_EL0(n) { SYS_DESC(SYS_AMEVTYPER1_EL0(n)), undef_access }
static unsigned int ptrauth_visibility(const struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd)
@ -1072,8 +1058,14 @@ static unsigned int ptrauth_visibility(const struct kvm_vcpu *vcpu,
return vcpu_has_ptrauth(vcpu) ? 0 : REG_HIDDEN;
}
/*
* If we land here on a PtrAuth access, that is because we didn't
* fixup the access on exit by allowing the PtrAuth sysregs. The only
* way this happens is when the guest does not have PtrAuth support
* enabled.
*/
#define __PTRAUTH_KEY(k) \
{ SYS_DESC(SYS_## k), trap_ptrauth, reset_unknown, k, \
{ SYS_DESC(SYS_## k), undef_access, reset_unknown, k, \
.visibility = ptrauth_visibility}
#define PTRAUTH_KEY(k) \
@ -1128,9 +1120,8 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
if (!vcpu_has_sve(vcpu))
val &= ~(0xfUL << ID_AA64PFR0_SVE_SHIFT);
val &= ~(0xfUL << ID_AA64PFR0_AMU_SHIFT);
if (!(val & (0xfUL << ID_AA64PFR0_CSV2_SHIFT)) &&
arm64_get_spectre_v2_state() == SPECTRE_UNAFFECTED)
val |= (1UL << ID_AA64PFR0_CSV2_SHIFT);
val &= ~(0xfUL << ID_AA64PFR0_CSV2_SHIFT);
val |= ((u64)vcpu->kvm->arch.pfr0_csv2 << ID_AA64PFR0_CSV2_SHIFT);
} else if (id == SYS_ID_AA64PFR1_EL1) {
val &= ~(0xfUL << ID_AA64PFR1_MTE_SHIFT);
} else if (id == SYS_ID_AA64ISAR1_EL1 && !vcpu_has_ptrauth(vcpu)) {
@ -1213,6 +1204,40 @@ static unsigned int sve_visibility(const struct kvm_vcpu *vcpu,
return REG_HIDDEN;
}
static int set_id_aa64pfr0_el1(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
const u64 id = sys_reg_to_index(rd);
int err;
u64 val;
u8 csv2;
err = reg_from_user(&val, uaddr, id);
if (err)
return err;
/*
* Allow AA64PFR0_EL1.CSV2 to be set from userspace as long as
* it doesn't promise more than what is actually provided (the
* guest could otherwise be covered in ectoplasmic residue).
*/
csv2 = cpuid_feature_extract_unsigned_field(val, ID_AA64PFR0_CSV2_SHIFT);
if (csv2 > 1 ||
(csv2 && arm64_get_spectre_v2_state() != SPECTRE_UNAFFECTED))
return -EINVAL;
/* We can only differ with CSV2, and anything else is an error */
val ^= read_id_reg(vcpu, rd, false);
val &= ~(0xFUL << ID_AA64PFR0_CSV2_SHIFT);
if (val)
return -EINVAL;
vcpu->kvm->arch.pfr0_csv2 = csv2;
return 0;
}
/*
* cpufeature ID register user accessors
*
@ -1341,13 +1366,6 @@ static bool access_ccsidr(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
return true;
}
static bool access_mte_regs(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
kvm_inject_undefined(vcpu);
return false;
}
/* sys_reg_desc initialiser for known cpufeature ID registers */
#define ID_SANITISED(name) { \
SYS_DESC(SYS_##name), \
@ -1472,7 +1490,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
/* AArch64 ID registers */
/* CRm=4 */
ID_SANITISED(ID_AA64PFR0_EL1),
{ SYS_DESC(SYS_ID_AA64PFR0_EL1), .access = access_id_reg,
.get_user = get_id_reg, .set_user = set_id_aa64pfr0_el1, },
ID_SANITISED(ID_AA64PFR1_EL1),
ID_UNALLOCATED(4,2),
ID_UNALLOCATED(4,3),
@ -1515,8 +1534,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_ACTLR_EL1), access_actlr, reset_actlr, ACTLR_EL1 },
{ SYS_DESC(SYS_CPACR_EL1), NULL, reset_val, CPACR_EL1, 0 },
{ SYS_DESC(SYS_RGSR_EL1), access_mte_regs },
{ SYS_DESC(SYS_GCR_EL1), access_mte_regs },
{ SYS_DESC(SYS_RGSR_EL1), undef_access },
{ SYS_DESC(SYS_GCR_EL1), undef_access },
{ SYS_DESC(SYS_ZCR_EL1), NULL, reset_val, ZCR_EL1, 0, .visibility = sve_visibility },
{ SYS_DESC(SYS_TTBR0_EL1), access_vm_reg, reset_unknown, TTBR0_EL1 },
@ -1542,8 +1561,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_ERXMISC0_EL1), trap_raz_wi },
{ SYS_DESC(SYS_ERXMISC1_EL1), trap_raz_wi },
{ SYS_DESC(SYS_TFSR_EL1), access_mte_regs },
{ SYS_DESC(SYS_TFSRE0_EL1), access_mte_regs },
{ SYS_DESC(SYS_TFSR_EL1), undef_access },
{ SYS_DESC(SYS_TFSRE0_EL1), undef_access },
{ SYS_DESC(SYS_FAR_EL1), access_vm_reg, reset_unknown, FAR_EL1 },
{ SYS_DESC(SYS_PAR_EL1), NULL, reset_unknown, PAR_EL1 },
@ -1579,6 +1598,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_CONTEXTIDR_EL1), access_vm_reg, reset_val, CONTEXTIDR_EL1, 0 },
{ SYS_DESC(SYS_TPIDR_EL1), NULL, reset_unknown, TPIDR_EL1 },
{ SYS_DESC(SYS_SCXTNUM_EL1), undef_access },
{ SYS_DESC(SYS_CNTKCTL_EL1), NULL, reset_val, CNTKCTL_EL1, 0},
{ SYS_DESC(SYS_CCSIDR_EL1), access_ccsidr },
@ -1607,14 +1628,16 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_TPIDR_EL0), NULL, reset_unknown, TPIDR_EL0 },
{ SYS_DESC(SYS_TPIDRRO_EL0), NULL, reset_unknown, TPIDRRO_EL0 },
{ SYS_DESC(SYS_AMCR_EL0), access_amu },
{ SYS_DESC(SYS_AMCFGR_EL0), access_amu },
{ SYS_DESC(SYS_AMCGCR_EL0), access_amu },
{ SYS_DESC(SYS_AMUSERENR_EL0), access_amu },
{ SYS_DESC(SYS_AMCNTENCLR0_EL0), access_amu },
{ SYS_DESC(SYS_AMCNTENSET0_EL0), access_amu },
{ SYS_DESC(SYS_AMCNTENCLR1_EL0), access_amu },
{ SYS_DESC(SYS_AMCNTENSET1_EL0), access_amu },
{ SYS_DESC(SYS_SCXTNUM_EL0), undef_access },
{ SYS_DESC(SYS_AMCR_EL0), undef_access },
{ SYS_DESC(SYS_AMCFGR_EL0), undef_access },
{ SYS_DESC(SYS_AMCGCR_EL0), undef_access },
{ SYS_DESC(SYS_AMUSERENR_EL0), undef_access },
{ SYS_DESC(SYS_AMCNTENCLR0_EL0), undef_access },
{ SYS_DESC(SYS_AMCNTENSET0_EL0), undef_access },
{ SYS_DESC(SYS_AMCNTENCLR1_EL0), undef_access },
{ SYS_DESC(SYS_AMCNTENSET1_EL0), undef_access },
AMU_AMEVCNTR0_EL0(0),
AMU_AMEVCNTR0_EL0(1),
AMU_AMEVCNTR0_EL0(2),

17
arch/arm64/mm/mmu.c
View File

@ -1444,11 +1444,28 @@ static void __remove_pgd_mapping(pgd_t *pgdir, unsigned long start, u64 size)
free_empty_tables(start, end, PAGE_OFFSET, PAGE_END);
}
static bool inside_linear_region(u64 start, u64 size)
{
/*
* Linear mapping region is the range [PAGE_OFFSET..(PAGE_END - 1)]
* accommodating both its ends but excluding PAGE_END. Max physical
* range which can be mapped inside this linear mapping range, must
* also be derived from its end points.
*/
return start >= __pa(_PAGE_OFFSET(vabits_actual)) &&
(start + size - 1) <= __pa(PAGE_END - 1);
}
int arch_add_memory(int nid, u64 start, u64 size,
struct mhp_params *params)
{
int ret, flags = 0;
if (!inside_linear_region(start, size)) {
pr_err("[%llx %llx] is outside linear mapping region\n", start, start + size);
return -EINVAL;
}
if (rodata_full || debug_pagealloc_enabled())
flags = NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS;

3
arch/csky/kernel/perf_regs.c
View File

@ -32,8 +32,7 @@ u64 perf_reg_abi(struct task_struct *task)
}
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs,
struct pt_regs *regs_user_copy)
struct pt_regs *regs)
{
regs_user->regs = task_pt_regs(current);
regs_user->abi = perf_reg_abi(current);

9
arch/mips/alchemy/common/clock.c
View File

@ -152,6 +152,7 @@ static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
{
struct clk_init_data id;
struct clk_hw *h;
struct clk *clk;
h = kzalloc(sizeof(*h), GFP_KERNEL);
if (!h)
@ -164,7 +165,13 @@ static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
id.ops = &alchemy_clkops_cpu;
h->init = &id;
return clk_register(NULL, h);
clk = clk_register(NULL, h);
if (IS_ERR(clk)) {
pr_err("failed to register clock\n");
kfree(h);
}
return clk;
}
/* AUXPLLs ************************************************************/

6
arch/mips/kernel/setup.c
View File

@ -262,8 +262,8 @@ static void __init bootmem_init(void)
static void __init bootmem_init(void)
{
phys_addr_t ramstart, ramend;
phys_addr_t start, end;
u64 i;
unsigned long start, end;
int i;
ramstart = memblock_start_of_DRAM();
ramend = memblock_end_of_DRAM();
@ -300,7 +300,7 @@ static void __init bootmem_init(void)
min_low_pfn = ARCH_PFN_OFFSET;
max_pfn = PFN_DOWN(ramend);
for_each_mem_range(i, &start, &end) {
for_each_mem_pfn_range(i, MAX_NUMNODES, &start, &end, NULL) {
/*
* Skip highmem here so we get an accurate max_low_pfn if low
* memory stops short of high memory.

1
arch/mips/mm/tlb-r4k.c
View File

@ -438,6 +438,7 @@ int has_transparent_hugepage(void)
}
return mask == PM_HUGE_MASK;
}
EXPORT_SYMBOL(has_transparent_hugepage);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */

66
arch/powerpc/include/asm/book3s/64/kup-radix.h
View File

@ -27,6 +27,7 @@
#endif
.endm
#ifdef CONFIG_PPC_KUAP
.macro kuap_check_amr gpr1, gpr2
#ifdef CONFIG_PPC_KUAP_DEBUG
BEGIN_MMU_FTR_SECTION_NESTED(67)
@ -38,6 +39,7 @@
END_MMU_FTR_SECTION_NESTED_IFSET(MMU_FTR_RADIX_KUAP, 67)
#endif
.endm
#endif
.macro kuap_save_amr_and_lock gpr1, gpr2, use_cr, msr_pr_cr
#ifdef CONFIG_PPC_KUAP
@ -61,6 +63,8 @@
#else /* !__ASSEMBLY__ */
DECLARE_STATIC_KEY_FALSE(uaccess_flush_key);
#ifdef CONFIG_PPC_KUAP
#include <asm/mmu.h>
@ -103,8 +107,16 @@ static inline void kuap_check_amr(void)
static inline unsigned long get_kuap(void)
{
/*
* We return AMR_KUAP_BLOCKED when we don't support KUAP because
* prevent_user_access_return needs to return AMR_KUAP_BLOCKED to
* cause restore_user_access to do a flush.
*
* This has no effect in terms of actually blocking things on hash,
* so it doesn't break anything.
*/
if (!early_mmu_has_feature(MMU_FTR_RADIX_KUAP))
return 0;
return AMR_KUAP_BLOCKED;
return mfspr(SPRN_AMR);
}
@ -123,6 +135,29 @@ static inline void set_kuap(unsigned long value)
isync();
}
static inline bool
bad_kuap_fault(struct pt_regs *regs, unsigned long address, bool is_write)
{
return WARN(mmu_has_feature(MMU_FTR_RADIX_KUAP) &&
(regs->kuap & (is_write ? AMR_KUAP_BLOCK_WRITE : AMR_KUAP_BLOCK_READ)),
"Bug: %s fault blocked by AMR!", is_write ? "Write" : "Read");
}
#else /* CONFIG_PPC_KUAP */
static inline void kuap_restore_amr(struct pt_regs *regs, unsigned long amr) { }
static inline unsigned long kuap_get_and_check_amr(void)
{
return 0UL;
}
static inline unsigned long get_kuap(void)
{
return AMR_KUAP_BLOCKED;
}
static inline void set_kuap(unsigned long value) { }
#endif /* !CONFIG_PPC_KUAP */
static __always_inline void allow_user_access(void __user *to, const void __user *from,
unsigned long size, unsigned long dir)
{
@ -142,6 +177,8 @@ static inline void prevent_user_access(void __user *to, const void __user *from,
unsigned long size, unsigned long dir)
{
set_kuap(AMR_KUAP_BLOCKED);
if (static_branch_unlikely(&uaccess_flush_key))
do_uaccess_flush();
}
static inline unsigned long prevent_user_access_return(void)
@ -149,6 +186,8 @@ static inline unsigned long prevent_user_access_return(void)
unsigned long flags = get_kuap();
set_kuap(AMR_KUAP_BLOCKED);
if (static_branch_unlikely(&uaccess_flush_key))
do_uaccess_flush();
return flags;
}
@ -156,30 +195,9 @@ static inline unsigned long prevent_user_access_return(void)
static inline void restore_user_access(unsigned long flags)
{
set_kuap(flags);
if (static_branch_unlikely(&uaccess_flush_key) && flags == AMR_KUAP_BLOCKED)
do_uaccess_flush();
}
static inline bool
bad_kuap_fault(struct pt_regs *regs, unsigned long address, bool is_write)
{
return WARN(mmu_has_feature(MMU_FTR_RADIX_KUAP) &&
(regs->kuap & (is_write ? AMR_KUAP_BLOCK_WRITE : AMR_KUAP_BLOCK_READ)),
"Bug: %s fault blocked by AMR!", is_write ? "Write" : "Read");
}
#else /* CONFIG_PPC_KUAP */
static inline void kuap_restore_amr(struct pt_regs *regs, unsigned long amr)
{
}
static inline void kuap_check_amr(void)
{
}
static inline unsigned long kuap_get_and_check_amr(void)
{
return 0;
}
#endif /* CONFIG_PPC_KUAP */
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_KUP_RADIX_H */

12
arch/powerpc/include/asm/exception-64s.h
View File

@ -57,11 +57,18 @@
nop; \
nop
#define ENTRY_FLUSH_SLOT \
ENTRY_FLUSH_FIXUP_SECTION; \
nop; \
nop; \
nop;
/*
* r10 must be free to use, r13 must be paca
*/
#define INTERRUPT_TO_KERNEL \
STF_ENTRY_BARRIER_SLOT
STF_ENTRY_BARRIER_SLOT; \
ENTRY_FLUSH_SLOT
/*
* Macros for annotating the expected destination of (h)rfid
@ -137,6 +144,9 @@
RFSCV; \
b rfscv_flush_fallback
#else /* __ASSEMBLY__ */
/* Prototype for function defined in exceptions-64s.S */
void do_uaccess_flush(void);
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_EXCEPTION_H */

19
arch/powerpc/include/asm/feature-fixups.h
View File

@ -205,6 +205,22 @@ label##3: \
FTR_ENTRY_OFFSET 955b-956b; \
.popsection;
#define UACCESS_FLUSH_FIXUP_SECTION \
959: \
.pushsection __uaccess_flush_fixup,"a"; \
.align 2; \
960: \
FTR_ENTRY_OFFSET 959b-960b; \
.popsection;
#define ENTRY_FLUSH_FIXUP_SECTION \
957: \
.pushsection __entry_flush_fixup,"a"; \
.align 2; \
958: \
FTR_ENTRY_OFFSET 957b-958b; \
.popsection;
#define RFI_FLUSH_FIXUP_SECTION \
951: \
.pushsection __rfi_flush_fixup,"a"; \
@ -237,8 +253,11 @@ label##3: \
#include <linux/types.h>
extern long stf_barrier_fallback;
extern long entry_flush_fallback;
extern long __start___stf_entry_barrier_fixup, __stop___stf_entry_barrier_fixup;
extern long __start___stf_exit_barrier_fixup, __stop___stf_exit_barrier_fixup;
extern long __start___uaccess_flush_fixup, __stop___uaccess_flush_fixup;
extern long __start___entry_flush_fixup, __stop___entry_flush_fixup;
extern long __start___rfi_flush_fixup, __stop___rfi_flush_fixup;
extern long __start___barrier_nospec_fixup, __stop___barrier_nospec_fixup;
extern long __start__btb_flush_fixup, __stop__btb_flush_fixup;

26
arch/powerpc/include/asm/kup.h
View File

@ -14,7 +14,7 @@
#define KUAP_CURRENT_WRITE 8
#define KUAP_CURRENT (KUAP_CURRENT_READ | KUAP_CURRENT_WRITE)
#ifdef CONFIG_PPC64
#ifdef CONFIG_PPC_BOOK3S_64
#include <asm/book3s/64/kup-radix.h>
#endif
#ifdef CONFIG_PPC_8xx
@ -35,6 +35,9 @@
.macro kuap_check current, gpr
.endm
.macro kuap_check_amr gpr1, gpr2
.endm
#endif
#else /* !__ASSEMBLY__ */
@ -53,17 +56,28 @@ static inline void setup_kuep(bool disabled) { }
void setup_kuap(bool disabled);
#else
static inline void setup_kuap(bool disabled) { }
static inline bool
bad_kuap_fault(struct pt_regs *regs, unsigned long address, bool is_write)
{
return false;
}
static inline void kuap_check_amr(void) { }
/*
* book3s/64/kup-radix.h defines these functions for the !KUAP case to flush
* the L1D cache after user accesses. Only include the empty stubs for other
* platforms.
*/
#ifndef CONFIG_PPC_BOOK3S_64
static inline void allow_user_access(void __user *to, const void __user *from,
unsigned long size, unsigned long dir) { }
static inline void prevent_user_access(void __user *to, const void __user *from,
unsigned long size, unsigned long dir) { }
static inline unsigned long prevent_user_access_return(void) { return 0UL; }
static inline void restore_user_access(unsigned long flags) { }
static inline bool
bad_kuap_fault(struct pt_regs *regs, unsigned long address, bool is_write)
{
return false;
}
#endif /* CONFIG_PPC_BOOK3S_64 */
#endif /* CONFIG_PPC_KUAP */
static inline void allow_read_from_user(const void __user *from, unsigned long size)

7
arch/powerpc/include/asm/security_features.h
View File

@ -86,12 +86,19 @@ static inline bool security_ftr_enabled(u64 feature)
// Software required to flush link stack on context switch
#define SEC_FTR_FLUSH_LINK_STACK 0x0000000000001000ull
// The L1-D cache should be flushed when entering the kernel
#define SEC_FTR_L1D_FLUSH_ENTRY 0x0000000000004000ull
// The L1-D cache should be flushed after user accesses from the kernel
#define SEC_FTR_L1D_FLUSH_UACCESS 0x0000000000008000ull
// Features enabled by default
#define SEC_FTR_DEFAULT \
(SEC_FTR_L1D_FLUSH_HV | \
SEC_FTR_L1D_FLUSH_PR | \
SEC_FTR_BNDS_CHK_SPEC_BAR | \
SEC_FTR_L1D_FLUSH_ENTRY | \
SEC_FTR_L1D_FLUSH_UACCESS | \
SEC_FTR_FAVOUR_SECURITY)
#endif /* _ASM_POWERPC_SECURITY_FEATURES_H */

4
arch/powerpc/include/asm/setup.h
View File

@ -52,12 +52,16 @@ enum l1d_flush_type {
};
void setup_rfi_flush(enum l1d_flush_type, bool enable);
void setup_entry_flush(bool enable);
void setup_uaccess_flush(bool enable);
void do_rfi_flush_fixups(enum l1d_flush_type types);
#ifdef CONFIG_PPC_BARRIER_NOSPEC
void setup_barrier_nospec(void);
#else
static inline void setup_barrier_nospec(void) { };
#endif
void do_uaccess_flush_fixups(enum l1d_flush_type types);
void do_entry_flush_fixups(enum l1d_flush_type types);
void do_barrier_nospec_fixups(bool enable);
extern bool barrier_nospec_enabled;

80
arch/powerpc/kernel/exceptions-64s.S
View File

@ -2951,15 +2951,8 @@ TRAMP_REAL_BEGIN(stf_barrier_fallback)
.endr
blr
TRAMP_REAL_BEGIN(rfi_flush_fallback)
SET_SCRATCH0(r13);
GET_PACA(r13);
std r1,PACA_EXRFI+EX_R12(r13)
ld r1,PACAKSAVE(r13)
std r9,PACA_EXRFI+EX_R9(r13)
std r10,PACA_EXRFI+EX_R10(r13)
std r11,PACA_EXRFI+EX_R11(r13)
mfctr r9
/* Clobbers r10, r11, ctr */
.macro L1D_DISPLACEMENT_FLUSH
ld r10,PACA_RFI_FLUSH_FALLBACK_AREA(r13)
ld r11,PACA_L1D_FLUSH_SIZE(r13)
srdi r11,r11,(7 + 3) /* 128 byte lines, unrolled 8x */
@ -2970,7 +2963,7 @@ TRAMP_REAL_BEGIN(rfi_flush_fallback)
sync
/*
* The load adresses are at staggered offsets within cachelines,
* The load addresses are at staggered offsets within cachelines,
* which suits some pipelines better (on others it should not
* hurt).
*/
@ -2985,7 +2978,30 @@ TRAMP_REAL_BEGIN(rfi_flush_fallback)
ld r11,(0x80 + 8)*7(r10)
addi r10,r10,0x80*8
bdnz 1b
.endm
TRAMP_REAL_BEGIN(entry_flush_fallback)
std r9,PACA_EXRFI+EX_R9(r13)
std r10,PACA_EXRFI+EX_R10(r13)
std r11,PACA_EXRFI+EX_R11(r13)
mfctr r9
L1D_DISPLACEMENT_FLUSH
mtctr r9
ld r9,PACA_EXRFI+EX_R9(r13)
ld r10,PACA_EXRFI+EX_R10(r13)
ld r11,PACA_EXRFI+EX_R11(r13)
blr
TRAMP_REAL_BEGIN(rfi_flush_fallback)
SET_SCRATCH0(r13);
GET_PACA(r13);
std r1,PACA_EXRFI+EX_R12(r13)
ld r1,PACAKSAVE(r13)
std r9,PACA_EXRFI+EX_R9(r13)
std r10,PACA_EXRFI+EX_R10(r13)
std r11,PACA_EXRFI+EX_R11(r13)
mfctr r9
L1D_DISPLACEMENT_FLUSH
mtctr r9
ld r9,PACA_EXRFI+EX_R9(r13)
ld r10,PACA_EXRFI+EX_R10(r13)
@ -3003,32 +3019,7 @@ TRAMP_REAL_BEGIN(hrfi_flush_fallback)
std r10,PACA_EXRFI+EX_R10(r13)
std r11,PACA_EXRFI+EX_R11(r13)
mfctr r9
ld r10,PACA_RFI_FLUSH_FALLBACK_AREA(r13)
ld r11,PACA_L1D_FLUSH_SIZE(r13)
srdi r11,r11,(7 + 3) /* 128 byte lines, unrolled 8x */
mtctr r11
DCBT_BOOK3S_STOP_ALL_STREAM_IDS(r11) /* Stop prefetch streams */
/* order ld/st prior to dcbt stop all streams with flushing */
sync
/*
* The load adresses are at staggered offsets within cachelines,
* which suits some pipelines better (on others it should not
* hurt).
*/
1:
ld r11,(0x80 + 8)*0(r10)
ld r11,(0x80 + 8)*1(r10)
ld r11,(0x80 + 8)*2(r10)
ld r11,(0x80 + 8)*3(r10)
ld r11,(0x80 + 8)*4(r10)
ld r11,(0x80 + 8)*5(r10)
ld r11,(0x80 + 8)*6(r10)
ld r11,(0x80 + 8)*7(r10)
addi r10,r10,0x80*8
bdnz 1b
L1D_DISPLACEMENT_FLUSH
mtctr r9
ld r9,PACA_EXRFI+EX_R9(r13)
ld r10,PACA_EXRFI+EX_R10(r13)
@ -3079,8 +3070,21 @@ TRAMP_REAL_BEGIN(rfscv_flush_fallback)
RFSCV
USE_TEXT_SECTION()
MASKED_INTERRUPT
MASKED_INTERRUPT hsrr=1
_GLOBAL(do_uaccess_flush)
UACCESS_FLUSH_FIXUP_SECTION
nop
nop
nop
blr
L1D_DISPLACEMENT_FLUSH
blr
_ASM_NOKPROBE_SYMBOL(do_uaccess_flush)
EXPORT_SYMBOL(do_uaccess_flush)
MASKED_INTERRUPT
MASKED_INTERRUPT hsrr=1
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
kvmppc_skip_interrupt:

122
arch/powerpc/kernel/setup_64.c
View File

@ -945,7 +945,13 @@ early_initcall(disable_hardlockup_detector);
static enum l1d_flush_type enabled_flush_types;
static void *l1d_flush_fallback_area;
static bool no_rfi_flush;
static bool no_entry_flush;
static bool no_uaccess_flush;
bool rfi_flush;
bool entry_flush;
bool uaccess_flush;
DEFINE_STATIC_KEY_FALSE(uaccess_flush_key);
EXPORT_SYMBOL(uaccess_flush_key);
static int __init handle_no_rfi_flush(char *p)
{
@ -955,6 +961,22 @@ static int __init handle_no_rfi_flush(char *p)
}
early_param("no_rfi_flush", handle_no_rfi_flush);
static int __init handle_no_entry_flush(char *p)
{
pr_info("entry-flush: disabled on command line.");
no_entry_flush = true;
return 0;
}
early_param("no_entry_flush", handle_no_entry_flush);
static int __init handle_no_uaccess_flush(char *p)
{
pr_info("uaccess-flush: disabled on command line.");
no_uaccess_flush = true;
return 0;
}
early_param("no_uaccess_flush", handle_no_uaccess_flush);
/*
* The RFI flush is not KPTI, but because users will see doco that says to use
* nopti we hijack that option here to also disable the RFI flush.
@ -986,6 +1008,32 @@ void rfi_flush_enable(bool enable)
rfi_flush = enable;
}
void entry_flush_enable(bool enable)
{
if (enable) {
do_entry_flush_fixups(enabled_flush_types);
on_each_cpu(do_nothing, NULL, 1);
} else {
do_entry_flush_fixups(L1D_FLUSH_NONE);
}
entry_flush = enable;
}
void uaccess_flush_enable(bool enable)
{
if (enable) {
do_uaccess_flush_fixups(enabled_flush_types);
static_branch_enable(&uaccess_flush_key);
on_each_cpu(do_nothing, NULL, 1);
} else {
static_branch_disable(&uaccess_flush_key);
do_uaccess_flush_fixups(L1D_FLUSH_NONE);
}
uaccess_flush = enable;
}
static void __ref init_fallback_flush(void)
{
u64 l1d_size, limit;
@ -1044,10 +1092,28 @@ void setup_rfi_flush(enum l1d_flush_type types, bool enable)
enabled_flush_types = types;
if (!no_rfi_flush && !cpu_mitigations_off())
if (!cpu_mitigations_off() && !no_rfi_flush)
rfi_flush_enable(enable);
}
void setup_entry_flush(bool enable)
{
if (cpu_mitigations_off())
return;
if (!no_entry_flush)
entry_flush_enable(enable);
}
void setup_uaccess_flush(bool enable)
{
if (cpu_mitigations_off())
return;
if (!no_uaccess_flush)
uaccess_flush_enable(enable);
}
#ifdef CONFIG_DEBUG_FS
static int rfi_flush_set(void *data, u64 val)
{
@ -1075,9 +1141,63 @@ static int rfi_flush_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(fops_rfi_flush, rfi_flush_get, rfi_flush_set, "%llu\n");
static int entry_flush_set(void *data, u64 val)
{
bool enable;
if (val == 1)
enable = true;
else if (val == 0)
enable = false;
else
return -EINVAL;
/* Only do anything if we're changing state */
if (enable != entry_flush)
entry_flush_enable(enable);
return 0;
}
static int entry_flush_get(void *data, u64 *val)
{
*val = entry_flush ? 1 : 0;
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(fops_entry_flush, entry_flush_get, entry_flush_set, "%llu\n");
static int uaccess_flush_set(void *data, u64 val)
{
bool enable;
if (val == 1)
enable = true;
else if (val == 0)
enable = false;
else
return -EINVAL;
/* Only do anything if we're changing state */
if (enable != uaccess_flush)
uaccess_flush_enable(enable);
return 0;
}
static int uaccess_flush_get(void *data, u64 *val)
{
*val = uaccess_flush ? 1 : 0;
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(fops_uaccess_flush, uaccess_flush_get, uaccess_flush_set, "%llu\n");
static __init int rfi_flush_debugfs_init(void)
{
debugfs_create_file("rfi_flush", 0600, powerpc_debugfs_root, NULL, &fops_rfi_flush);
debugfs_create_file("entry_flush", 0600, powerpc_debugfs_root, NULL, &fops_entry_flush);
debugfs_create_file("uaccess_flush", 0600, powerpc_debugfs_root, NULL, &fops_uaccess_flush);
return 0;
}
device_initcall(rfi_flush_debugfs_init);

2
arch/powerpc/kernel/syscall_64.c
View File

@ -2,7 +2,7 @@
#include <linux/err.h>
#include <asm/asm-prototypes.h>
#include <asm/book3s/64/kup-radix.h>
#include <asm/kup.h>
#include <asm/cputime.h>
#include <asm/hw_irq.h>
#include <asm/kprobes.h>

14
arch/powerpc/kernel/vmlinux.lds.S
View File

@ -131,6 +131,20 @@ SECTIONS
__stop___stf_entry_barrier_fixup = .;
}
. = ALIGN(8);
__uaccess_flush_fixup : AT(ADDR(__uaccess_flush_fixup) - LOAD_OFFSET) {
__start___uaccess_flush_fixup = .;
*(__uaccess_flush_fixup)
__stop___uaccess_flush_fixup = .;
}
. = ALIGN(8);
__entry_flush_fixup : AT(ADDR(__entry_flush_fixup) - LOAD_OFFSET) {
__start___entry_flush_fixup = .;
*(__entry_flush_fixup)
__stop___entry_flush_fixup = .;
}
. = ALIGN(8);
__stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) {
__start___stf_exit_barrier_fixup = .;

104
arch/powerpc/lib/feature-fixups.c
View File

@ -234,6 +234,110 @@ void do_stf_barrier_fixups(enum stf_barrier_type types)
do_stf_exit_barrier_fixups(types);
}
void do_uaccess_flush_fixups(enum l1d_flush_type types)
{
unsigned int instrs[4], *dest;
long *start, *end;
int i;
start = PTRRELOC(&__start___uaccess_flush_fixup);
end = PTRRELOC(&__stop___uaccess_flush_fixup);
instrs[0] = 0x60000000; /* nop */
instrs[1] = 0x60000000; /* nop */
instrs[2] = 0x60000000; /* nop */
instrs[3] = 0x4e800020; /* blr */
i = 0;
if (types == L1D_FLUSH_FALLBACK) {
instrs[3] = 0x60000000; /* nop */
/* fallthrough to fallback flush */
}
if (types & L1D_FLUSH_ORI) {
instrs[i++] = 0x63ff0000; /* ori 31,31,0 speculation barrier */
instrs[i++] = 0x63de0000; /* ori 30,30,0 L1d flush*/
}
if (types & L1D_FLUSH_MTTRIG)
instrs[i++] = 0x7c12dba6; /* mtspr TRIG2,r0 (SPR #882) */
for (i = 0; start < end; start++, i++) {
dest = (void *)start + *start;
pr_devel("patching dest %lx\n", (unsigned long)dest);
patch_instruction((struct ppc_inst *)dest, ppc_inst(instrs[0]));
patch_instruction((struct ppc_inst *)(dest + 1), ppc_inst(instrs[1]));
patch_instruction((struct ppc_inst *)(dest + 2), ppc_inst(instrs[2]));
patch_instruction((struct ppc_inst *)(dest + 3), ppc_inst(instrs[3]));
}
printk(KERN_DEBUG "uaccess-flush: patched %d locations (%s flush)\n", i,
(types == L1D_FLUSH_NONE) ? "no" :
(types == L1D_FLUSH_FALLBACK) ? "fallback displacement" :
(types & L1D_FLUSH_ORI) ? (types & L1D_FLUSH_MTTRIG)
? "ori+mttrig type"
: "ori type" :
(types & L1D_FLUSH_MTTRIG) ? "mttrig type"
: "unknown");
}
void do_entry_flush_fixups(enum l1d_flush_type types)
{
unsigned int instrs[3], *dest;
long *start, *end;
int i;
start = PTRRELOC(&__start___entry_flush_fixup);
end = PTRRELOC(&__stop___entry_flush_fixup);
instrs[0] = 0x60000000; /* nop */
instrs[1] = 0x60000000; /* nop */
instrs[2] = 0x60000000; /* nop */
i = 0;
if (types == L1D_FLUSH_FALLBACK) {
instrs[i++] = 0x7d4802a6; /* mflr r10 */
instrs[i++] = 0x60000000; /* branch patched below */
instrs[i++] = 0x7d4803a6; /* mtlr r10 */
}
if (types & L1D_FLUSH_ORI) {
instrs[i++] = 0x63ff0000; /* ori 31,31,0 speculation barrier */
instrs[i++] = 0x63de0000; /* ori 30,30,0 L1d flush*/
}
if (types & L1D_FLUSH_MTTRIG)
instrs[i++] = 0x7c12dba6; /* mtspr TRIG2,r0 (SPR #882) */
for (i = 0; start < end; start++, i++) {
dest = (void *)start + *start;
pr_devel("patching dest %lx\n", (unsigned long)dest);
patch_instruction((struct ppc_inst *)dest, ppc_inst(instrs[0]));
if (types == L1D_FLUSH_FALLBACK)
patch_branch((struct ppc_inst *)(dest + 1), (unsigned long)&entry_flush_fallback,
BRANCH_SET_LINK);
else
patch_instruction((struct ppc_inst *)(dest + 1), ppc_inst(instrs[1]));
patch_instruction((struct ppc_inst *)(dest + 2), ppc_inst(instrs[2]));
}
printk(KERN_DEBUG "entry-flush: patched %d locations (%s flush)\n", i,
(types == L1D_FLUSH_NONE) ? "no" :
(types == L1D_FLUSH_FALLBACK) ? "fallback displacement" :
(types & L1D_FLUSH_ORI) ? (types & L1D_FLUSH_MTTRIG)
? "ori+mttrig type"
: "ori type" :
(types & L1D_FLUSH_MTTRIG) ? "mttrig type"
: "unknown");
}
void do_rfi_flush_fixups(enum l1d_flush_type types)
{
unsigned int instrs[3], *dest;

2
arch/powerpc/perf/imc-pmu.c
View File

@ -1336,7 +1336,7 @@ static void dump_trace_imc_data(struct perf_event *event)
/* If this is a valid record, create the sample */
struct perf_output_handle handle;
if (perf_output_begin(&handle, event, header.size))
if (perf_output_begin(&handle, &data, event, header.size))
return;
perf_output_sample(&handle, &header, &data, event);

3
arch/powerpc/perf/perf_regs.c
View File

@ -144,8 +144,7 @@ u64 perf_reg_abi(struct task_struct *task)
}
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs,
struct pt_regs *regs_user_copy)
struct pt_regs *regs)
{
regs_user->regs = task_pt_regs(current);
regs_user->abi = (regs_user->regs) ? perf_reg_abi(current) :

24
arch/powerpc/platforms/powernv/setup.c
View File

@ -98,7 +98,7 @@ static void init_fw_feat_flags(struct device_node *np)
security_ftr_clear(SEC_FTR_BNDS_CHK_SPEC_BAR);
}
static void pnv_setup_rfi_flush(void)
static void pnv_setup_security_mitigations(void)
{
struct device_node *np, *fw_features;
enum l1d_flush_type type;
@ -122,12 +122,31 @@ static void pnv_setup_rfi_flush(void)
type = L1D_FLUSH_ORI;
}
/*
* If we are non-Power9 bare metal, we don't need to flush on kernel
* entry or after user access: they fix a P9 specific vulnerability.
*/
if (!pvr_version_is(PVR_POWER9)) {
security_ftr_clear(SEC_FTR_L1D_FLUSH_ENTRY);
security_ftr_clear(SEC_FTR_L1D_FLUSH_UACCESS);
}
enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) && \
(security_ftr_enabled(SEC_FTR_L1D_FLUSH_PR) || \
security_ftr_enabled(SEC_FTR_L1D_FLUSH_HV));
setup_rfi_flush(type, enable);
setup_count_cache_flush();
enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) &&
security_ftr_enabled(SEC_FTR_L1D_FLUSH_ENTRY);
setup_entry_flush(enable);
enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) &&
security_ftr_enabled(SEC_FTR_L1D_FLUSH_UACCESS);
setup_uaccess_flush(enable);
setup_stf_barrier();
}
static void __init pnv_check_guarded_cores(void)
@ -156,8 +175,7 @@ static void __init pnv_setup_arch(void)
{
set_arch_panic_timeout(10, ARCH_PANIC_TIMEOUT);
pnv_setup_rfi_flush();
setup_stf_barrier();
pnv_setup_security_mitigations();
/* Initialize SMP */
pnv_smp_init();

4
arch/powerpc/platforms/pseries/mobility.c
View File

@ -349,8 +349,8 @@ void post_mobility_fixup(void)
cpus_read_unlock();
/* Possibly switch to a new RFI flush type */
pseries_setup_rfi_flush();
/* Possibly switch to a new L1 flush type */
pseries_setup_security_mitigations();
/* Reinitialise system information for hv-24x7 */
read_24x7_sys_info();

2
arch/powerpc/platforms/pseries/pseries.h
View File

@ -111,7 +111,7 @@ static inline unsigned long cmo_get_page_size(void)
int dlpar_workqueue_init(void);
void pseries_setup_rfi_flush(void);
void pseries_setup_security_mitigations(void);
void pseries_lpar_read_hblkrm_characteristics(void);
#endif /* _PSERIES_PSERIES_H */

15
arch/powerpc/platforms/pseries/setup.c
View File

@ -542,7 +542,7 @@ static void init_cpu_char_feature_flags(struct h_cpu_char_result *result)
security_ftr_clear(SEC_FTR_BNDS_CHK_SPEC_BAR);
}
void pseries_setup_rfi_flush(void)
void pseries_setup_security_mitigations(void)
{
struct h_cpu_char_result result;
enum l1d_flush_type types;
@ -579,6 +579,16 @@ void pseries_setup_rfi_flush(void)
setup_rfi_flush(types, enable);
setup_count_cache_flush();
enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) &&
security_ftr_enabled(SEC_FTR_L1D_FLUSH_ENTRY);
setup_entry_flush(enable);
enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) &&
security_ftr_enabled(SEC_FTR_L1D_FLUSH_UACCESS);
setup_uaccess_flush(enable);
setup_stf_barrier();
}
#ifdef CONFIG_PCI_IOV
@ -768,8 +778,7 @@ static void __init pSeries_setup_arch(void)
fwnmi_init();
pseries_setup_rfi_flush();
setup_stf_barrier();
pseries_setup_security_mitigations();
pseries_lpar_read_hblkrm_characteristics();
/* By default, only probe PCI (can be overridden by rtas_pci) */

3
arch/riscv/kernel/perf_regs.c
View File

@ -36,8 +36,7 @@ u64 perf_reg_abi(struct task_struct *task)
}
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs,
struct pt_regs *regs_user_copy)
struct pt_regs *regs)
{
regs_user->regs = task_pt_regs(current);
regs_user->abi = perf_reg_abi(current);

1
arch/s390/configs/debug_defconfig
View File

@ -1,3 +1,4 @@
CONFIG_UAPI_HEADER_TEST=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_WATCH_QUEUE=y

2
arch/s390/kernel/entry.S
View File

@ -422,6 +422,7 @@ ENTRY(system_call)
#endif
LOCKDEP_SYS_EXIT
.Lsysc_tif:
DISABLE_INTS
TSTMSK __PT_FLAGS(%r11),_PIF_WORK
jnz .Lsysc_work
TSTMSK __TI_flags(%r12),_TIF_WORK
@ -444,6 +445,7 @@ ENTRY(system_call)
# One of the work bits is on. Find out which one.
#
.Lsysc_work:
ENABLE_INTS
TSTMSK __TI_flags(%r12),_TIF_NEED_RESCHED
jo .Lsysc_reschedule
TSTMSK __PT_FLAGS(%r11),_PIF_SYSCALL_RESTART

4
arch/s390/kernel/perf_cpum_sf.c
View File

@ -672,7 +672,7 @@ static void cpumsf_output_event_pid(struct perf_event *event,
rcu_read_lock();
perf_prepare_sample(&header, data, event, regs);
if (perf_output_begin(&handle, event, header.size))
if (perf_output_begin(&handle, data, event, header.size))
goto out;
/* Update the process ID (see also kernel/events/core.c) */
@ -2228,4 +2228,4 @@ out:
}
arch_initcall(init_cpum_sampling_pmu);
core_param(cpum_sfb_size, CPUM_SF_MAX_SDB, sfb_size, 0640);
core_param(cpum_sfb_size, CPUM_SF_MAX_SDB, sfb_size, 0644);

3
arch/s390/kernel/perf_regs.c
View File

@ -53,8 +53,7 @@ u64 perf_reg_abi(struct task_struct *task)
}
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs,
struct pt_regs *regs_user_copy)
struct pt_regs *regs)
{
/*
* Use the regs from the first interruption and let

8
arch/um/include/asm/pgalloc.h
View File

@ -33,7 +33,13 @@ do { \
} while (0)
#ifdef CONFIG_3_LEVEL_PGTABLES
#define __pmd_free_tlb(tlb,x, address) tlb_remove_page((tlb),virt_to_page(x))
#define __pmd_free_tlb(tlb, pmd, address) \
do { \
pgtable_pmd_page_dtor(virt_to_page(pmd)); \
tlb_remove_page((tlb),virt_to_page(pmd)); \
} while (0) \
#endif
#endif

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