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Merge drm/drm-fixes into drm-misc-fixes 

Backmerging drm/drm-fixes for commit 3755d35ee1 ("drm/panel: Select
DRM_DP_HELPER for DRM_PANEL_EDP").

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
This commit is contained in:
Thomas Zimmermann 2022-03-17 11:03:28 +01:00
Родитель fc1b6ef7bf 09688c0166
Коммит a8253684eb
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10
.mailmap
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@ -70,6 +70,7 @@ Boris Brezillon <bbrezillon@kernel.org> <boris.brezillon@bootlin.com>
Boris Brezillon <bbrezillon@kernel.org> <boris.brezillon@free-electrons.com>
Brian Avery <b.avery@hp.com>
Brian King <brking@us.ibm.com>
Brian Silverman <bsilver16384@gmail.com> <brian.silverman@bluerivertech.com>
Changbin Du <changbin.du@intel.com> <changbin.du@gmail.com>
Changbin Du <changbin.du@intel.com> <changbin.du@intel.com>
Chao Yu <chao@kernel.org> <chao2.yu@samsung.com>
@ -79,6 +80,9 @@ Chris Chiu <chris.chiu@canonical.com> <chiu@endlessos.org>
Christian Borntraeger <borntraeger@linux.ibm.com> <borntraeger@de.ibm.com>
Christian Borntraeger <borntraeger@linux.ibm.com> <cborntra@de.ibm.com>
Christian Borntraeger <borntraeger@linux.ibm.com> <borntrae@de.ibm.com>
Christian Brauner <brauner@kernel.org> <christian@brauner.io>
Christian Brauner <brauner@kernel.org> <christian.brauner@canonical.com>
Christian Brauner <brauner@kernel.org> <christian.brauner@ubuntu.com>
Christophe Ricard <christophe.ricard@gmail.com>
Christoph Hellwig <hch@lst.de>
Colin Ian King <colin.king@intel.com> <colin.king@canonical.com>
@ -183,6 +187,8 @@ Jiri Slaby <jirislaby@kernel.org> <jslaby@novell.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@suse.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@suse.cz>
Jiri Slaby <jirislaby@kernel.org> <xslaby@fi.muni.cz>
Jisheng Zhang <jszhang@kernel.org> <jszhang@marvell.com>
Jisheng Zhang <jszhang@kernel.org> <Jisheng.Zhang@synaptics.com>
Johan Hovold <johan@kernel.org> <jhovold@gmail.com>
Johan Hovold <johan@kernel.org> <johan@hovoldconsulting.com>
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
@ -212,6 +218,7 @@ Koushik <raghavendra.koushik@neterion.com>
Krishna Manikandan <quic_mkrishn@quicinc.com> <mkrishn@codeaurora.org>
Krzysztof Kozlowski <krzk@kernel.org> <k.kozlowski.k@gmail.com>
Krzysztof Kozlowski <krzk@kernel.org> <k.kozlowski@samsung.com>
Krzysztof Kozlowski <krzk@kernel.org> <krzysztof.kozlowski@canonical.com>
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Kuogee Hsieh <quic_khsieh@quicinc.com> <khsieh@codeaurora.org>
Leonardo Bras <leobras.c@gmail.com> <leonardo@linux.ibm.com>
@ -329,6 +336,9 @@ Rémi Denis-Courmont <rdenis@simphalempin.com>
Ricardo Ribalda <ribalda@kernel.org> <ricardo@ribalda.com>
Ricardo Ribalda <ribalda@kernel.org> Ricardo Ribalda Delgado <ribalda@kernel.org>
Ricardo Ribalda <ribalda@kernel.org> <ricardo.ribalda@gmail.com>
Roman Gushchin <roman.gushchin@linux.dev> <guro@fb.com>
Roman Gushchin <roman.gushchin@linux.dev> <guroan@gmail.com>
Roman Gushchin <roman.gushchin@linux.dev> <klamm@yandex-team.ru>
Ross Zwisler <zwisler@kernel.org> <ross.zwisler@linux.intel.com>
Rudolf Marek <R.Marek@sh.cvut.cz>
Rui Saraiva <rmps@joel.ist.utl.pt>

6
CREDITS
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@ -895,6 +895,12 @@ S: 3000 FORE Drive
S: Warrendale, Pennsylvania 15086
S: USA
N: Ludovic Desroches
E: ludovic.desroches@microchip.com
D: Maintainer for ARM/Microchip (AT91) SoC support
D: Author of ADC, pinctrl, XDMA and SDHCI drivers for this platform
S: France
N: Martin Devera
E: devik@cdi.cz
W: http://luxik.cdi.cz/~devik/qos/

1
Documentation/ABI/testing/sysfs-class-power
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@ -468,6 +468,7 @@ Description:
auto: Charge normally, respect thresholds
inhibit-charge: Do not charge while AC is attached
force-discharge: Force discharge while AC is attached
================ ====================================
What: /sys/class/power_supply/<supply_name>/technology
Date: May 2007

6
Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing
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@ -1,4 +1,4 @@
What: /sys/bus/platform/drivers/aspeed-uart-routing/*/uart*
What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/uart\*
Date: September 2021
Contact: Oskar Senft <osk@google.com>
Chia-Wei Wang <chiawei_wang@aspeedtech.com>
@ -9,7 +9,7 @@ Description: Selects the RX source of the UARTx device.
depends on the selected file.
e.g.
cat /sys/bus/platform/drivers/aspeed-uart-routing/*.uart_routing/uart1
cat /sys/bus/platform/drivers/aspeed-uart-routing/\*.uart_routing/uart1
[io1] io2 io3 io4 uart2 uart3 uart4 io6
In this case, UART1 gets its input from IO1 (physical serial port 1).
@ -17,7 +17,7 @@ Description: Selects the RX source of the UARTx device.
Users: OpenBMC. Proposed changes should be mailed to
openbmc@lists.ozlabs.org
What: /sys/bus/platform/drivers/aspeed-uart-routing/*/io*
What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/io\*
Date: September 2021
Contact: Oskar Senft <osk@google.com>
Chia-Wei Wang <chiawei_wang@aspeedtech.com>

3
Documentation/accounting/psi.rst
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@ -92,7 +92,8 @@ Triggers can be set on more than one psi metric and more than one trigger
for the same psi metric can be specified. However for each trigger a separate
file descriptor is required to be able to poll it separately from others,
therefore for each trigger a separate open() syscall should be made even
when opening the same psi interface file.
when opening the same psi interface file. Write operations to a file descriptor
with an already existing psi trigger will fail with EBUSY.
Monitors activate only when system enters stall state for the monitored
psi metric and deactivates upon exit from the stall state. While system is

1
Documentation/admin-guide/gpio/index.rst
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@ -10,6 +10,7 @@ gpio
gpio-aggregator
sysfs
gpio-mockup
gpio-sim
.. only:: subproject and html

50
Documentation/admin-guide/hw-vuln/spectre.rst
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@ -60,8 +60,8 @@ privileged data touched during the speculative execution.
Spectre variant 1 attacks take advantage of speculative execution of
conditional branches, while Spectre variant 2 attacks use speculative
execution of indirect branches to leak privileged memory.
See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[7] <spec_ref7>`
:ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`.
See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[6] <spec_ref6>`
:ref:`[7] <spec_ref7>` :ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`.
Spectre variant 1 (Bounds Check Bypass)
---------------------------------------
@ -131,6 +131,19 @@ steer its indirect branch speculations to gadget code, and measure the
speculative execution's side effects left in level 1 cache to infer the
victim's data.
Yet another variant 2 attack vector is for the attacker to poison the
Branch History Buffer (BHB) to speculatively steer an indirect branch
to a specific Branch Target Buffer (BTB) entry, even if the entry isn't
associated with the source address of the indirect branch. Specifically,
the BHB might be shared across privilege levels even in the presence of
Enhanced IBRS.
Currently the only known real-world BHB attack vector is via
unprivileged eBPF. Therefore, it's highly recommended to not enable
unprivileged eBPF, especially when eIBRS is used (without retpolines).
For a full mitigation against BHB attacks, it's recommended to use
retpolines (or eIBRS combined with retpolines).
Attack scenarios
----------------
@ -364,13 +377,15 @@ The possible values in this file are:
- Kernel status:
==================================== =================================
'Not affected' The processor is not vulnerable
'Vulnerable' Vulnerable, no mitigation
'Mitigation: Full generic retpoline' Software-focused mitigation
'Mitigation: Full AMD retpoline' AMD-specific software mitigation
'Mitigation: Enhanced IBRS' Hardware-focused mitigation
==================================== =================================
======================================== =================================
'Not affected' The processor is not vulnerable
'Mitigation: None' Vulnerable, no mitigation
'Mitigation: Retpolines' Use Retpoline thunks
'Mitigation: LFENCE' Use LFENCE instructions
'Mitigation: Enhanced IBRS' Hardware-focused mitigation
'Mitigation: Enhanced IBRS + Retpolines' Hardware-focused + Retpolines
'Mitigation: Enhanced IBRS + LFENCE' Hardware-focused + LFENCE
======================================== =================================
- Firmware status: Show if Indirect Branch Restricted Speculation (IBRS) is
used to protect against Spectre variant 2 attacks when calling firmware (x86 only).
@ -583,12 +598,13 @@ kernel command line.
Specific mitigations can also be selected manually:
retpoline
replace indirect branches
retpoline,generic
google's original retpoline
retpoline,amd
AMD-specific minimal thunk
retpoline auto pick between generic,lfence
retpoline,generic Retpolines
retpoline,lfence LFENCE; indirect branch
retpoline,amd alias for retpoline,lfence
eibrs enhanced IBRS
eibrs,retpoline enhanced IBRS + Retpolines
eibrs,lfence enhanced IBRS + LFENCE
Not specifying this option is equivalent to
spectre_v2=auto.
@ -599,7 +615,7 @@ kernel command line.
spectre_v2=off. Spectre variant 1 mitigations
cannot be disabled.
For spectre_v2_user see :doc:`/admin-guide/kernel-parameters`.
For spectre_v2_user see Documentation/admin-guide/kernel-parameters.txt
Mitigation selection guide
--------------------------
@ -681,7 +697,7 @@ AMD white papers:
.. _spec_ref6:
[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/90343-B_SoftwareTechniquesforManagingSpeculation_WP_7-18Update_FNL.pdf>`_.
[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/Managing-Speculation-on-AMD-Processors.pdf>`_.
ARM white papers:

8
Documentation/admin-guide/kernel-parameters.txt
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@ -5361,8 +5361,12 @@
Specific mitigations can also be selected manually:
retpoline - replace indirect branches
retpoline,generic - google's original retpoline
retpoline,amd - AMD-specific minimal thunk
retpoline,generic - Retpolines
retpoline,lfence - LFENCE; indirect branch
retpoline,amd - alias for retpoline,lfence
eibrs - enhanced IBRS
eibrs,retpoline - enhanced IBRS + Retpolines
eibrs,lfence - enhanced IBRS + LFENCE
Not specifying this option is equivalent to
spectre_v2=auto.

2
Documentation/admin-guide/mm/pagemap.rst
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@ -23,7 +23,7 @@ There are four components to pagemap:
* Bit 56 page exclusively mapped (since 4.2)
* Bit 57 pte is uffd-wp write-protected (since 5.13) (see
:ref:`Documentation/admin-guide/mm/userfaultfd.rst <userfaultfd>`)
* Bits 57-60 zero
* Bits 58-60 zero
* Bit 61 page is file-page or shared-anon (since 3.5)
* Bit 62 page swapped
* Bit 63 page present

2
Documentation/arm/marvell.rst
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@ -266,10 +266,12 @@ Avanta family
-------------
Flavors:
- 88F6500
- 88F6510
- 88F6530P
- 88F6550
- 88F6560
- 88F6601
Homepage:
https://web.archive.org/web/20181005145041/http://www.marvell.com/broadband/

14
Documentation/arm64/silicon-errata.rst
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@ -52,6 +52,12 @@ stable kernels.
| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2038923 | ARM64_ERRATUM_2038923 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #1902691 | ARM64_ERRATUM_1902691 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 |
@ -92,12 +98,20 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A77 | #1508412 | ARM64_ERRATUM_1508412 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2051678 | ARM64_ERRATUM_2051678 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2077057 | ARM64_ERRATUM_2077057 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-X2 | #2119858 | ARM64_ERRATUM_2119858 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-X2 | #2224489 | ARM64_ERRATUM_2224489 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1349291 | N/A |

3
Documentation/cpu-freq/cpu-drivers.rst
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@ -75,6 +75,9 @@ And optionally
.resume - A pointer to a per-policy resume function which is called
with interrupts disabled and _before_ the governor is started again.
.ready - A pointer to a per-policy ready function which is called after
the policy is fully initialized.
.attr - A pointer to a NULL-terminated list of "struct freq_attr" which
allow to export values to sysfs.

8
Documentation/dev-tools/kselftest.rst
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@ -7,6 +7,14 @@ directory. These are intended to be small tests to exercise individual code
paths in the kernel. Tests are intended to be run after building, installing
and booting a kernel.
Kselftest from mainline can be run on older stable kernels. Running tests
from mainline offers the best coverage. Several test rings run mainline
kselftest suite on stable releases. The reason is that when a new test
gets added to test existing code to regression test a bug, we should be
able to run that test on an older kernel. Hence, it is important to keep
code that can still test an older kernel and make sure it skips the test
gracefully on newer releases.
You can find additional information on Kselftest framework, how to
write new tests using the framework on Kselftest wiki:

2
Documentation/dev-tools/kunit/usage.rst
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@ -242,7 +242,7 @@ example:
int rectangle_area(struct shape *this)
{
struct rectangle *self = container_of(this, struct shape, parent);
struct rectangle *self = container_of(this, struct rectangle, parent);
return self->length * self->width;
};

3
Documentation/devicetree/bindings/arm/atmel-at91.yaml
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@ -8,7 +8,8 @@ title: Atmel AT91 device tree bindings.
maintainers:
- Alexandre Belloni <alexandre.belloni@bootlin.com>
- Ludovic Desroches <ludovic.desroches@microchip.com>
- Claudiu Beznea <claudiu.beznea@microchip.com>
- Nicolas Ferre <nicolas.ferre@microchip.com>
description: |
Boards with a SoC of the Atmel AT91 or SMART family shall have the following

2
Documentation/devicetree/bindings/arm/freescale/fsl,layerscape-dcfg.txt
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@ -8,7 +8,7 @@ Required properties:
- compatible: Should contain a chip-specific compatible string,
Chip-specific strings are of the form "fsl,<chip>-dcfg",
The following <chip>s are known to be supported:
ls1012a, ls1021a, ls1043a, ls1046a, ls2080a.
ls1012a, ls1021a, ls1043a, ls1046a, ls2080a, lx2160a
- reg : should contain base address and length of DCFG memory-mapped registers

3
Documentation/devicetree/bindings/arm/omap/omap.txt
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@ -119,6 +119,9 @@ Boards (incomplete list of examples):
- OMAP3 BeagleBoard : Low cost community board
compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
- OMAP3 BeagleBoard A to B4 : Early BeagleBoard revisions A to B4 with a timer quirk
compatible = "ti,omap3-beagle-ab4", "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
- OMAP3 Tobi with Overo : Commercial expansion board with daughter board
compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3430", "ti,omap3"

6
Documentation/devicetree/bindings/arm/qcom.yaml
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@ -48,7 +48,6 @@ description: |
sdx65
sm7225
sm8150
sdx65
sm8250
sm8350
sm8450
@ -228,11 +227,6 @@ properties:
- qcom,sdx65-mtp
- const: qcom,sdx65
- items:
- enum:
- qcom,sdx65-mtp
- const: qcom,sdx65
- items:
- enum:
- qcom,ipq6018-cp01

1
Documentation/devicetree/bindings/clock/qoriq-clock.txt
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@ -44,6 +44,7 @@ Required properties:
* "fsl,ls1046a-clockgen"
* "fsl,ls1088a-clockgen"
* "fsl,ls2080a-clockgen"
* "fsl,lx2160a-clockgen"
Chassis-version clock strings include:
* "fsl,qoriq-clockgen-1.0": for chassis 1.0 clocks
* "fsl,qoriq-clockgen-2.0": for chassis 2.0 clocks

19
Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
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@ -91,22 +91,7 @@ properties:
$ref: /schemas/graph.yaml#/$defs/port-base
unevaluatedProperties: false
description:
MIPI DSI/DPI input.
properties:
endpoint:
$ref: /schemas/media/video-interfaces.yaml#
type: object
additionalProperties: false
properties:
remote-endpoint: true
bus-type:
enum: [1, 5]
default: 1
data-lanes: true
Video port for MIPI DSI input.
port@1:
$ref: /schemas/graph.yaml#/properties/port
@ -155,8 +140,6 @@ examples:
reg = <0>;
anx7625_in: endpoint {
remote-endpoint = <&mipi_dsi>;
bus-type = <5>;
data-lanes = <0 1 2 3>;
};
};

1
Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
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@ -7,7 +7,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: SiFive GPIO controller
maintainers:
- Yash Shah <yash.shah@sifive.com>
- Paul Walmsley <paul.walmsley@sifive.com>
properties:

1
Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
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@ -36,6 +36,7 @@ properties:
- renesas,intc-ex-r8a77980 # R-Car V3H
- renesas,intc-ex-r8a77990 # R-Car E3
- renesas,intc-ex-r8a77995 # R-Car D3
- renesas,intc-ex-r8a779a0 # R-Car V3U
- const: renesas,irqc
'#interrupt-cells':

33
Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
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@ -35,6 +35,10 @@ description:
contains a specific memory layout, which is documented in chapter 8 of the
SiFive U5 Coreplex Series Manual <https://static.dev.sifive.com/U54-MC-RVCoreIP.pdf>.
The thead,c900-plic is different from sifive,plic-1.0.0 in opensbi, the
T-HEAD PLIC implementation requires setting a delegation bit to allow access
from S-mode. So add thead,c900-plic to distinguish them.
maintainers:
- Sagar Kadam <sagar.kadam@sifive.com>
- Paul Walmsley <paul.walmsley@sifive.com>
@ -42,12 +46,17 @@ maintainers:
properties:
compatible:
items:
- enum:
- sifive,fu540-c000-plic
- starfive,jh7100-plic
- canaan,k210-plic
- const: sifive,plic-1.0.0
oneOf:
- items:
- enum:
- sifive,fu540-c000-plic
- starfive,jh7100-plic
- canaan,k210-plic
- const: sifive,plic-1.0.0
- items:
- enum:
- allwinner,sun20i-d1-plic
- const: thead,c900-plic
reg:
maxItems: 1
@ -62,6 +71,7 @@ properties:
interrupts-extended:
minItems: 1
maxItems: 15872
description:
Specifies which contexts are connected to the PLIC, with "-1" specifying
that a context is not present. Each node pointed to should be a
@ -90,12 +100,11 @@ examples:
#interrupt-cells = <1>;
compatible = "sifive,fu540-c000-plic", "sifive,plic-1.0.0";
interrupt-controller;
interrupts-extended = <
&cpu0_intc 11
&cpu1_intc 11 &cpu1_intc 9
&cpu2_intc 11 &cpu2_intc 9
&cpu3_intc 11 &cpu3_intc 9
&cpu4_intc 11 &cpu4_intc 9>;
interrupts-extended = <&cpu0_intc 11>,
<&cpu1_intc 11>, <&cpu1_intc 9>,
<&cpu2_intc 11>, <&cpu2_intc 9>,
<&cpu3_intc 11>, <&cpu3_intc 9>,
<&cpu4_intc 11>, <&cpu4_intc 9>;
reg = <0xc000000 0x4000000>;
riscv,ndev = <10>;
};

4
Documentation/devicetree/bindings/mfd/brcm,cru.yaml
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@ -39,7 +39,7 @@ patternProperties:
'^phy@[a-f0-9]+$':
$ref: ../phy/bcm-ns-usb2-phy.yaml
'^pin-controller@[a-f0-9]+$':
'^pinctrl@[a-f0-9]+$':
$ref: ../pinctrl/brcm,ns-pinmux.yaml
'^syscon@[a-f0-9]+$':
@ -94,7 +94,7 @@ examples:
reg = <0x180 0x4>;
};
pin-controller@1c0 {
pinctrl@1c0 {
compatible = "brcm,bcm4708-pinmux";
reg = <0x1c0 0x24>;
reg-names = "cru_gpio_control";

6
Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml
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@ -126,7 +126,7 @@ properties:
clock-frequency:
const: 12288000
lochnagar-pinctrl:
pinctrl:
type: object
$ref: /schemas/pinctrl/cirrus,lochnagar.yaml#
@ -255,7 +255,7 @@ required:
- reg
- reset-gpios
- lochnagar-clk
- lochnagar-pinctrl
- pinctrl
additionalProperties: false
@ -293,7 +293,7 @@ examples:
clock-frequency = <32768>;
};
lochnagar-pinctrl {
pinctrl {
compatible = "cirrus,lochnagar-pinctrl";
gpio-controller;

2
Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.yaml
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@ -20,7 +20,7 @@ description: |
maintainers:
- Kishon Vijay Abraham I <kishon@ti.com>
- Roger Quadros <rogerq@ti.com
- Roger Quadros <rogerq@kernel.org>
properties:
compatible:

2
Documentation/devicetree/bindings/net/can/tcan4x5x.txt
Просмотреть файл

@ -31,7 +31,7 @@ tcan4x5x: tcan4x5x@0 {
#address-cells = <1>;
#size-cells = <1>;
spi-max-frequency = <10000000>;
bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
interrupt-parent = <&gpio1>;
interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;

6
Documentation/devicetree/bindings/net/qcom,ipa.yaml
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@ -107,6 +107,10 @@ properties:
- const: imem
- const: config
qcom,qmp:
$ref: /schemas/types.yaml#/definitions/phandle
description: phandle to the AOSS side-channel message RAM
qcom,smem-states:
$ref: /schemas/types.yaml#/definitions/phandle-array
description: State bits used in by the AP to signal the modem.
@ -222,6 +226,8 @@ examples:
"imem",
"config";
qcom,qmp = <&aoss_qmp>;
qcom,smem-states = <&ipa_smp2p_out 0>,
<&ipa_smp2p_out 1>;
qcom,smem-state-names = "ipa-clock-enabled-valid",

2
Documentation/devicetree/bindings/phy/ti,omap-usb2.yaml
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@ -8,7 +8,7 @@ title: OMAP USB2 PHY
maintainers:
- Kishon Vijay Abraham I <kishon@ti.com>
- Roger Quadros <rogerq@ti.com>
- Roger Quadros <rogerq@kernel.org>
properties:
compatible:

7
Documentation/devicetree/bindings/phy/ti,tcan104x-can.yaml
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@ -37,6 +37,12 @@ properties:
max bit rate supported in bps
minimum: 1
mux-states:
description:
mux controller node to route the signals from controller to
transceiver.
maxItems: 1
required:
- compatible
- '#phy-cells'
@ -53,4 +59,5 @@ examples:
max-bitrate = <5000000>;
standby-gpios = <&wakeup_gpio1 16 GPIO_ACTIVE_LOW>;
enable-gpios = <&main_gpio1 67 GPIO_ACTIVE_HIGH>;
mux-states = <&mux0 1>;
};

3
Documentation/devicetree/bindings/pinctrl/cirrus,madera.yaml
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@ -107,9 +107,6 @@ properties:
additionalProperties: false
allOf:
- $ref: "pinctrl.yaml#"
required:
- pinctrl-0
- pinctrl-names

1
Documentation/devicetree/bindings/pwm/pwm-sifive.yaml
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@ -8,7 +8,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: SiFive PWM controller
maintainers:
- Yash Shah <yash.shah@sifive.com>
- Sagar Kadam <sagar.kadam@sifive.com>
- Paul Walmsley <paul.walmsley@sifive.com>

1
Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
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@ -9,7 +9,6 @@ title: SiFive L2 Cache Controller
maintainers:
- Sagar Kadam <sagar.kadam@sifive.com>
- Yash Shah <yash.shah@sifive.com>
- Paul Walmsley <paul.walmsley@sifive.com>
description:

1
Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml
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@ -8,6 +8,7 @@ title: Audio codec controlled by ChromeOS EC
maintainers:
- Cheng-Yi Chiang <cychiang@chromium.org>
- Tzung-Bi Shih <tzungbi@google.com>
description: |
Google's ChromeOS EC codec is a digital mic codec provided by the

5
Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
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@ -23,8 +23,9 @@ properties:
minItems: 1
maxItems: 256
items:
minimum: 0
maximum: 256
items:
- minimum: 0
maximum: 256
description:
Chip select used by the device.

1
Documentation/devicetree/bindings/usb/dwc2.yaml
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@ -53,6 +53,7 @@ properties:
- const: st,stm32mp15-hsotg
- const: snps,dwc2
- const: samsung,s3c6400-hsotg
- const: intel,socfpga-agilex-hsotg
reg:
maxItems: 1

2
Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
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@ -7,7 +7,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Bindings for the TI wrapper module for the Cadence USBSS-DRD controller
maintainers:
- Roger Quadros <rogerq@ti.com>
- Roger Quadros <rogerq@kernel.org>
properties:
compatible:

2
Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
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@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI Keystone Soc USB Controller
maintainers:
- Roger Quadros <rogerq@ti.com>
- Roger Quadros <rogerq@kernel.org>
properties:
compatible:

16
Documentation/filesystems/netfs_library.rst
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@ -462,6 +462,10 @@ operation table looks like the following::
struct iov_iter *iter,
netfs_io_terminated_t term_func,
void *term_func_priv);
int (*query_occupancy)(struct netfs_cache_resources *cres,
loff_t start, size_t len, size_t granularity,
loff_t *_data_start, size_t *_data_len);
};
With a termination handler function pointer::
@ -536,6 +540,18 @@ The methods defined in the table are:
indicating whether the termination is definitely happening in the caller's
context.
* ``query_occupancy()``
[Required] Called to find out where the next piece of data is within a
particular region of the cache. The start and length of the region to be
queried are passed in, along with the granularity to which the answer needs
to be aligned. The function passes back the start and length of the data,
if any, available within that region. Note that there may be a hole at the
front.
It returns 0 if some data was found, -ENODATA if there was no usable data
within the region or -ENOBUFS if there is no caching on this file.
Note that these methods are passed a pointer to the cache resource structure,
not the read request structure as they could be used in other situations where
there isn't a read request structure as well, such as writing dirty data to the

1
Documentation/index.rst
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@ -166,6 +166,7 @@ to ReStructured Text format, or are simply too old.
.. toctree::
:maxdepth: 2
tools/index
staging/index
watch_queue

2
Documentation/kernel-hacking/locking.rst
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@ -295,7 +295,7 @@ Pete Zaitcev gives the following summary:
- If you are in a process context (any syscall) and want to lock other
process out, use a mutex. You can take a mutex and sleep
(``copy_from_user*(`` or ``kmalloc(x,GFP_KERNEL)``).
(``copy_from_user()`` or ``kmalloc(x,GFP_KERNEL)``).
- Otherwise (== data can be touched in an interrupt), use
spin_lock_irqsave() and

20
Documentation/tools/index.rst Normal file
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@ -0,0 +1,20 @@
.. SPDX-License-Identifier: GPL-2.0
============
Kernel tools
============
This book covers user-space tools that are shipped with the kernel source;
more additions are needed here:
.. toctree::
:maxdepth: 1
rtla/index
.. only:: subproject and html
Indices
=======
* :ref:`genindex`

2
Documentation/tools/rtla/common_hist_options.rst
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@ -2,7 +2,7 @@
Set the histogram bucket size (default *1*).
**-e**, **--entries** *N*
**-E**, **--entries** *N*
Set the number of entries of the histogram (default 256).

2
Documentation/tools/rtla/common_osnoise_description.rst
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@ -1,7 +1,7 @@
The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
time in a loop while with preemption, softirq and IRQs enabled, thus
allowing all the sources of operating systme noise during its execution.
allowing all the sources of operating system noise during its execution.
The *osnoise*'s tracer threads take note of the delta between each time
read, along with an interference counter of all sources of interference.
At the end of each period, the *osnoise* tracer displays a summary of

26
Documentation/tools/rtla/index.rst Normal file
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@ -0,0 +1,26 @@
.. SPDX-License-Identifier: GPL-2.0
================================
The realtime Linux analysis tool
================================
RTLA provides a set of tools for the analysis of the kernel's realtime
behavior on specific hardware.
.. toctree::
:maxdepth: 1
rtla
rtla-osnoise
rtla-osnoise-hist
rtla-osnoise-top
rtla-timerlat
rtla-timerlat-hist
rtla-timerlat-top
.. only:: subproject and html
Indices
=======
* :ref:`genindex`

2
Documentation/tools/rtla/rtla-osnoise-hist.rst
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@ -36,7 +36,7 @@ default). The reason for reducing the runtime is to avoid starving the
**rtla** tool. The tool is also set to run for *one minute*. The output
histogram is set to group outputs in buckets of *10us* and *25* entries::
[root@f34 ~/]# rtla osnoise hist -P F:1 -c 0-11 -r 900000 -d 1M -b 10 -e 25
[root@f34 ~/]# rtla osnoise hist -P F:1 -c 0-11 -r 900000 -d 1M -b 10 -E 25
# RTLA osnoise histogram
# Time unit is microseconds (us)
# Duration: 0 00:01:00

2
Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
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@ -84,6 +84,8 @@ CPUfreq核心层注册一个cpufreq_driver结构体。
.resume - 一个指向per-policy恢复函数的指针，该函数在关中断且在调节器再一次启动前被
调用。
.ready - 一个指向per-policy准备函数的指针，该函数在策略完全初始化之后被调用。
.attr - 一个指向NULL结尾的"struct freq_attr"列表的指针，该列表允许导出值到
sysfs。

3
Documentation/userspace-api/ioctl/ioctl-number.rst
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@ -115,6 +115,7 @@ Code Seq# Include File Comments
'B' 00-1F linux/cciss_ioctl.h conflict!
'B' 00-0F include/linux/pmu.h conflict!
'B' C0-FF advanced bbus <mailto:maassen@uni-freiburg.de>
'B' 00-0F xen/xenbus_dev.h conflict!
'C' all linux/soundcard.h conflict!
'C' 01-2F linux/capi.h conflict!
'C' F0-FF drivers/net/wan/cosa.h conflict!
@ -134,6 +135,7 @@ Code Seq# Include File Comments
'F' 80-8F linux/arcfb.h conflict!
'F' DD video/sstfb.h conflict!
'G' 00-3F drivers/misc/sgi-gru/grulib.h conflict!
'G' 00-0F xen/gntalloc.h, xen/gntdev.h conflict!
'H' 00-7F linux/hiddev.h conflict!
'H' 00-0F linux/hidraw.h conflict!
'H' 01 linux/mei.h conflict!
@ -176,6 +178,7 @@ Code Seq# Include File Comments
'P' 60-6F sound/sscape_ioctl.h conflict!
'P' 00-0F drivers/usb/class/usblp.c conflict!
'P' 01-09 drivers/misc/pci_endpoint_test.c conflict!
'P' 00-0F xen/privcmd.h conflict!
'Q' all linux/soundcard.h
'R' 00-1F linux/random.h conflict!
'R' 01 linux/rfkill.h conflict!

20
Documentation/virt/kvm/api.rst
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@ -1394,7 +1394,7 @@ documentation when it pops into existence).
-------------------
:Capability: KVM_CAP_ENABLE_CAP
:Architectures: mips, ppc, s390
:Architectures: mips, ppc, s390, x86
:Type: vcpu ioctl
:Parameters: struct kvm_enable_cap (in)
:Returns: 0 on success; -1 on error
@ -3268,6 +3268,7 @@ number.
:Capability: KVM_CAP_DEVICE_CTRL, KVM_CAP_VM_ATTRIBUTES for vm device,
KVM_CAP_VCPU_ATTRIBUTES for vcpu device
KVM_CAP_SYS_ATTRIBUTES for system (/dev/kvm) device (no set)
:Type: device ioctl, vm ioctl, vcpu ioctl
:Parameters: struct kvm_device_attr
:Returns: 0 on success, -1 on error
@ -3302,7 +3303,8 @@ transferred is defined by the particular attribute.
------------------------
:Capability: KVM_CAP_DEVICE_CTRL, KVM_CAP_VM_ATTRIBUTES for vm device,
KVM_CAP_VCPU_ATTRIBUTES for vcpu device
KVM_CAP_VCPU_ATTRIBUTES for vcpu device
KVM_CAP_SYS_ATTRIBUTES for system (/dev/kvm) device
:Type: device ioctl, vm ioctl, vcpu ioctl
:Parameters: struct kvm_device_attr
:Returns: 0 on success, -1 on error
@ -6995,6 +6997,20 @@ indicated by the fd to the VM this is called on.
This is intended to support intra-host migration of VMs between userspace VMMs,
upgrading the VMM process without interrupting the guest.
7.30 KVM_CAP_PPC_AIL_MODE_3
-------------------------------
:Capability: KVM_CAP_PPC_AIL_MODE_3
:Architectures: ppc
:Type: vm
This capability indicates that the kernel supports the mode 3 setting for the
"Address Translation Mode on Interrupt" aka "Alternate Interrupt Location"
resource that is controlled with the H_SET_MODE hypercall.
This capability allows a guest kernel to use a better-performance mode for
handling interrupts and system calls.
8. Other capabilities.
======================

2
Documentation/vm/page_table_check.rst
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@ -9,7 +9,7 @@ Page Table Check
Introduction
============
Page table check allows to hardern the kernel by ensuring that some types of
Page table check allows to harden the kernel by ensuring that some types of
the memory corruptions are prevented.
Page table check performs extra verifications at the time when new pages become

206
MAINTAINERS
Просмотреть файл

@ -190,8 +190,9 @@ M: Johannes Berg <johannes@sipsolutions.net>
L: linux-wireless@vger.kernel.org
S: Maintained
W: https://wireless.wiki.kernel.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
Q: https://patchwork.kernel.org/project/linux-wireless/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git
F: Documentation/driver-api/80211/cfg80211.rst
F: Documentation/networking/regulatory.rst
F: include/linux/ieee80211.h
@ -1619,6 +1620,7 @@ M: Olof Johansson <olof@lixom.net>
M: soc@kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
C: irc://irc.libera.chat/armlinux
T: git git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
F: arch/arm/boot/dts/Makefile
F: arch/arm64/boot/dts/Makefile
@ -1626,6 +1628,7 @@ F: arch/arm64/boot/dts/Makefile
ARM SUB-ARCHITECTURES
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
C: irc://irc.libera.chat/armlinux
T: git git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
F: arch/arm/mach-*/
F: arch/arm/plat-*/
@ -1779,6 +1782,7 @@ F: drivers/irqchip/irq-apple-aic.c
F: drivers/mailbox/apple-mailbox.c
F: drivers/pinctrl/pinctrl-apple-gpio.c
F: drivers/soc/apple/*
F: drivers/watchdog/apple_wdt.c
F: include/dt-bindings/interrupt-controller/apple-aic.h
F: include/dt-bindings/pinctrl/apple.h
F: include/linux/apple-mailbox.h
@ -2250,7 +2254,7 @@ F: drivers/phy/mediatek/
ARM/Microchip (AT91) SoC support
M: Nicolas Ferre <nicolas.ferre@microchip.com>
M: Alexandre Belloni <alexandre.belloni@bootlin.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
M: Claudiu Beznea <claudiu.beznea@microchip.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
W: http://www.linux4sam.org
@ -2568,11 +2572,14 @@ F: sound/soc/rockchip/
N: rockchip
ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
R: Alim Akhtar <alim.akhtar@samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org
S: Maintained
C: irc://irc.libera.chat/linux-exynos
Q: https://patchwork.kernel.org/project/linux-samsung-soc/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git
F: Documentation/arm/samsung/
F: Documentation/devicetree/bindings/arm/samsung/
F: Documentation/devicetree/bindings/power/pd-samsung.yaml
@ -2732,7 +2739,7 @@ N: stm32
N: stm
ARM/Synaptics SoC support
M: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
M: Jisheng Zhang <jszhang@kernel.org>
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
@ -3132,11 +3139,9 @@ W: https://wireless.wiki.kernel.org/en/users/Drivers/ath5k
F: drivers/net/wireless/ath/ath5k/
ATHEROS ATH6KL WIRELESS DRIVER
M: Kalle Valo <kvalo@kernel.org>
L: linux-wireless@vger.kernel.org
S: Supported
S: Orphan
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath6kl
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
F: drivers/net/wireless/ath/ath6kl/
ATI_REMOTE2 DRIVER
@ -3900,7 +3905,7 @@ M: Scott Branden <sbranden@broadcom.com>
M: bcm-kernel-feedback-list@broadcom.com
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://github.com/broadcom/cygnus-linux.git
T: git git://github.com/broadcom/stblinux.git
F: arch/arm64/boot/dts/broadcom/northstar2/*
F: arch/arm64/boot/dts/broadcom/stingray/*
F: drivers/clk/bcm/clk-ns*
@ -4156,9 +4161,8 @@ N: csky
K: csky
CA8210 IEEE-802.15.4 RADIO DRIVER
M: Harry Morris <h.morris@cascoda.com>
L: linux-wpan@vger.kernel.org
S: Maintained
S: Orphan
W: https://github.com/Cascoda/ca8210-linux.git
F: Documentation/devicetree/bindings/net/ieee802154/ca8210.txt
F: drivers/net/ieee802154/ca8210.c
@ -4543,6 +4547,7 @@ F: drivers/platform/chrome/
CHROMEOS EC CODEC DRIVER
M: Cheng-Yi Chiang <cychiang@chromium.org>
M: Tzung-Bi Shih <tzungbi@google.com>
R: Guenter Roeck <groeck@chromium.org>
S: Maintained
F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml
@ -4908,7 +4913,8 @@ F: kernel/cgroup/cpuset.c
CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)
M: Johannes Weiner <hannes@cmpxchg.org>
M: Michal Hocko <mhocko@kernel.org>
M: Vladimir Davydov <vdavydov.dev@gmail.com>
M: Roman Gushchin <roman.gushchin@linux.dev>
M: Shakeel Butt <shakeelb@google.com>
L: cgroups@vger.kernel.org
L: linux-mm@kvack.org
S: Maintained
@ -5772,7 +5778,7 @@ F: tools/testing/selftests/dma/
DMA-BUF HEAPS FRAMEWORK
M: Sumit Semwal <sumit.semwal@linaro.org>
R: Benjamin Gaignard <benjamin.gaignard@linaro.org>
R: Benjamin Gaignard <benjamin.gaignard@collabora.com>
R: Liam Mark <lmark@codeaurora.org>
R: Laura Abbott <labbott@redhat.com>
R: Brian Starkey <Brian.Starkey@arm.com>
@ -6502,7 +6508,7 @@ F: Documentation/devicetree/bindings/display/rockchip/
F: drivers/gpu/drm/rockchip/
DRM DRIVERS FOR STI
M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
M: Alain Volmat <alain.volmat@foss.st.com>
L: dri-devel@lists.freedesktop.org
S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
@ -6511,8 +6517,8 @@ F: drivers/gpu/drm/sti
DRM DRIVERS FOR STM
M: Yannick Fertre <yannick.fertre@foss.st.com>
M: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
M: Philippe Cornu <philippe.cornu@foss.st.com>
M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
L: dri-devel@lists.freedesktop.org
S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
@ -7006,12 +7012,6 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/sb_edac.c
EDAC-SIFIVE
M: Yash Shah <yash.shah@sifive.com>
L: linux-edac@vger.kernel.org
S: Supported
F: drivers/edac/sifive_edac.c
EDAC-SKYLAKE
M: Tony Luck <tony.luck@intel.com>
L: linux-edac@vger.kernel.org
@ -7182,7 +7182,7 @@ F: drivers/net/can/usb/etas_es58x/
ETHERNET BRIDGE
M: Roopa Prabhu <roopa@nvidia.com>
M: Nikolay Aleksandrov <nikolay@nvidia.com>
M: Nikolay Aleksandrov <razor@blackwall.org>
L: bridge@lists.linux-foundation.org (moderated for non-subscribers)
L: netdev@vger.kernel.org
S: Maintained
@ -7208,8 +7208,10 @@ F: drivers/net/mdio/of_mdio.c
F: drivers/net/pcs/
F: drivers/net/phy/
F: include/dt-bindings/net/qca-ar803x.h
F: include/linux/linkmode.h
F: include/linux/*mdio*.h
F: include/linux/mdio/*.h
F: include/linux/mii.h
F: include/linux/of_net.h
F: include/linux/phy.h
F: include/linux/phy_fixed.h
@ -7742,8 +7744,7 @@ M: Qiang Zhao <qiang.zhao@nxp.com>
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/soc/fsl/qe/
F: include/soc/fsl/*qe*.h
F: include/soc/fsl/*ucc*.h
F: include/soc/fsl/qe/
FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
M: Li Yang <leoyang.li@nxp.com>
@ -7774,6 +7775,7 @@ F: Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
F: Documentation/devicetree/bindings/soc/fsl/
F: drivers/soc/fsl/
F: include/linux/fsl/
F: include/soc/fsl/
FREESCALE SOC FS_ENET DRIVER
M: Pantelis Antoniou <pantelis.antoniou@gmail.com>
@ -9256,6 +9258,15 @@ S: Maintained
W: https://github.com/o2genum/ideapad-slidebar
F: drivers/input/misc/ideapad_slidebar.c
IDMAPPED MOUNTS
M: Christian Brauner <brauner@kernel.org>
L: linux-fsdevel@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git
F: Documentation/filesystems/idmappings.rst
F: tools/testing/selftests/mount_setattr/
F: include/linux/mnt_idmapping.h
IDT VersaClock 5 CLOCK DRIVER
M: Luca Ceresoli <luca@lucaceresoli.net>
S: Maintained
@ -10883,6 +10894,12 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git
F: drivers/ata/pata_arasan_cf.c
F: include/linux/pata_arasan_cf_data.h
LIBATA PATA DRIVERS
R: Sergey Shtylyov <s.shtylyov@omp.ru>
L: linux-ide@vger.kernel.org
F: drivers/ata/ata_*.c
F: drivers/ata/pata_*.c
LIBATA PATA FARADAY FTIDE010 AND GEMINI SATA BRIDGE DRIVERS
M: Linus Walleij <linus.walleij@linaro.org>
L: linux-ide@vger.kernel.org
@ -11372,8 +11389,9 @@ M: Johannes Berg <johannes@sipsolutions.net>
L: linux-wireless@vger.kernel.org
S: Maintained
W: https://wireless.wiki.kernel.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
Q: https://patchwork.kernel.org/project/linux-wireless/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git
F: Documentation/networking/mac80211-injection.rst
F: Documentation/networking/mac80211_hwsim/mac80211_hwsim.rst
F: drivers/net/wireless/mac80211_hwsim.[ch]
@ -11657,7 +11675,7 @@ F: drivers/iio/proximity/mb1232.c
MAXIM MAX17040 FAMILY FUEL GAUGE DRIVERS
R: Iskren Chernev <iskren.chernev@gmail.com>
R: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
R: Krzysztof Kozlowski <krzk@kernel.org>
R: Marek Szyprowski <m.szyprowski@samsung.com>
R: Matheus Castello <matheus@castello.eng.br>
L: linux-pm@vger.kernel.org
@ -11667,7 +11685,7 @@ F: drivers/power/supply/max17040_battery.c
MAXIM MAX17042 FAMILY FUEL GAUGE DRIVERS
R: Hans de Goede <hdegoede@redhat.com>
R: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
R: Krzysztof Kozlowski <krzk@kernel.org>
R: Marek Szyprowski <m.szyprowski@samsung.com>
R: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
R: Purism Kernel Team <kernel@puri.sm>
@ -11712,7 +11730,7 @@ F: Documentation/devicetree/bindings/power/supply/maxim,max77976.yaml
F: drivers/power/supply/max77976_charger.c
MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
L: linux-pm@vger.kernel.org
S: Supported
@ -11721,7 +11739,7 @@ F: drivers/power/supply/max77693_charger.c
MAXIM PMIC AND MUIC DRIVERS FOR EXYNOS BASED BOARDS
M: Chanwoo Choi <cw00.choi@samsung.com>
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
L: linux-kernel@vger.kernel.org
S: Supported
@ -12402,7 +12420,7 @@ F: include/uapi/linux/membarrier.h
F: kernel/sched/membarrier.c
MEMBLOCK
M: Mike Rapoport <rppt@linux.ibm.com>
M: Mike Rapoport <rppt@kernel.org>
L: linux-mm@kvack.org
S: Maintained
F: Documentation/core-api/boot-time-mm.rst
@ -12410,7 +12428,7 @@ F: include/linux/memblock.h
F: mm/memblock.c
MEMORY CONTROLLER DRIVERS
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
L: linux-kernel@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl.git
@ -13300,8 +13318,8 @@ W: http://www.iptables.org/
W: http://www.nftables.org/
Q: http://patchwork.ozlabs.org/project/netfilter-devel/list/
C: irc://irc.libera.chat/netfilter
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next.git
F: include/linux/netfilter*
F: include/linux/netfilter/
F: include/net/netfilter/
@ -13380,9 +13398,10 @@ NETWORKING DRIVERS (WIRELESS)
M: Kalle Valo <kvalo@kernel.org>
L: linux-wireless@vger.kernel.org
S: Maintained
Q: http://patchwork.kernel.org/project/linux-wireless/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git
W: https://wireless.wiki.kernel.org/
Q: https://patchwork.kernel.org/project/linux-wireless/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git
F: Documentation/devicetree/bindings/net/wireless/
F: drivers/net/wireless/
@ -13455,7 +13474,11 @@ L: netdev@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
F: arch/x86/net/*
F: include/linux/ip.h
F: include/linux/ipv6*
F: include/net/fib*
F: include/net/ip*
F: include/net/route.h
F: net/ipv4/
F: net/ipv6/
@ -13516,10 +13539,6 @@ F: include/net/tls.h
F: include/uapi/linux/tls.h
F: net/tls/*
NETWORKING [WIRELESS]
L: linux-wireless@vger.kernel.org
Q: http://patchwork.kernel.org/project/linux-wireless/list/
NETXEN (1/10) GbE SUPPORT
M: Manish Chopra <manishc@marvell.com>
M: Rahul Verma <rahulv@marvell.com>
@ -13546,7 +13565,7 @@ F: include/uapi/linux/nexthop.h
F: net/ipv4/nexthop.c
NFC SUBSYSTEM
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
L: linux-nfc@lists.01.org (subscribers-only)
L: netdev@vger.kernel.org
S: Maintained
@ -13567,7 +13586,7 @@ F: tools/testing/selftests/nci/
NFS, SUNRPC, AND LOCKD CLIENTS
M: Trond Myklebust <trond.myklebust@hammerspace.com>
M: Anna Schumaker <anna.schumaker@netapp.com>
M: Anna Schumaker <anna@kernel.org>
L: linux-nfs@vger.kernel.org
S: Maintained
W: http://client.linux-nfs.org
@ -13680,7 +13699,7 @@ F: scripts/nsdeps
NTB AMD DRIVER
M: Sanjay R Mehta <sanju.mehta@amd.com>
M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
L: linux-ntb@googlegroups.com
L: ntb@lists.linux.dev
S: Supported
F: drivers/ntb/hw/amd/
@ -13688,7 +13707,7 @@ NTB DRIVER CORE
M: Jon Mason <jdmason@kudzu.us>
M: Dave Jiang <dave.jiang@intel.com>
M: Allen Hubbe <allenbh@gmail.com>
L: linux-ntb@googlegroups.com
L: ntb@lists.linux.dev
S: Supported
W: https://github.com/jonmason/ntb/wiki
T: git git://github.com/jonmason/ntb.git
@ -13700,13 +13719,13 @@ F: tools/testing/selftests/ntb/
NTB IDT DRIVER
M: Serge Semin <fancer.lancer@gmail.com>
L: linux-ntb@googlegroups.com
L: ntb@lists.linux.dev
S: Supported
F: drivers/ntb/hw/idt/
NTB INTEL DRIVER
M: Dave Jiang <dave.jiang@intel.com>
L: linux-ntb@googlegroups.com
L: ntb@lists.linux.dev
S: Supported
W: https://github.com/davejiang/linux/wiki
T: git https://github.com/davejiang/linux.git
@ -13860,7 +13879,7 @@ F: Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml
F: drivers/regulator/pf8x00-regulator.c
NXP PTN5150A CC LOGIC AND EXTCON DRIVER
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
L: linux-kernel@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml
@ -14385,6 +14404,7 @@ M: Rob Herring <robh+dt@kernel.org>
M: Frank Rowand <frowand.list@gmail.com>
L: devicetree@vger.kernel.org
S: Maintained
C: irc://irc.libera.chat/devicetree
W: http://www.devicetree.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git
F: Documentation/ABI/testing/sysfs-firmware-ofw
@ -14396,6 +14416,7 @@ OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
M: Rob Herring <robh+dt@kernel.org>
L: devicetree@vger.kernel.org
S: Maintained
C: irc://irc.libera.chat/devicetree
Q: http://patchwork.ozlabs.org/project/devicetree-bindings/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git
F: Documentation/devicetree/
@ -15129,7 +15150,7 @@ M: Ingo Molnar <mingo@redhat.com>
M: Arnaldo Carvalho de Melo <acme@kernel.org>
R: Mark Rutland <mark.rutland@arm.com>
R: Alexander Shishkin <alexander.shishkin@linux.intel.com>
R: Jiri Olsa <jolsa@redhat.com>
R: Jiri Olsa <jolsa@kernel.org>
R: Namhyung Kim <namhyung@kernel.org>
L: linux-perf-users@vger.kernel.org
L: linux-kernel@vger.kernel.org
@ -15284,11 +15305,13 @@ F: drivers/pinctrl/renesas/
PIN CONTROLLER - SAMSUNG
M: Tomasz Figa <tomasz.figa@gmail.com>
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
R: Alim Akhtar <alim.akhtar@samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org
S: Maintained
C: irc://irc.libera.chat/linux-exynos
Q: https://patchwork.kernel.org/project/linux-samsung-soc/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung.git
F: Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
@ -15545,6 +15568,7 @@ M: Iurii Zaikin <yzaikin@google.com>
L: linux-kernel@vger.kernel.org
L: linux-fsdevel@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git sysctl-next
F: fs/proc/proc_sysctl.c
F: include/linux/sysctl.h
F: kernel/sysctl-test.c
@ -15892,6 +15916,7 @@ S: Supported
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath10k
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
F: drivers/net/wireless/ath/ath10k/
F: Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
QUALCOMM ATHEROS ATH11K WIRELESS DRIVER
M: Kalle Valo <kvalo@kernel.org>
@ -15899,11 +15924,12 @@ L: ath11k@lists.infradead.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
F: drivers/net/wireless/ath/ath11k/
F: Documentation/devicetree/bindings/net/wireless/qcom,ath11k.txt
QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
M: ath9k-devel@qca.qualcomm.com
M: Toke Høiland-Jørgensen <toke@toke.dk>
L: linux-wireless@vger.kernel.org
S: Supported
S: Maintained
W: https://wireless.wiki.kernel.org/en/users/Drivers/ath9k
F: Documentation/devicetree/bindings/net/wireless/qca,ath9k.yaml
F: drivers/net/wireless/ath/ath9k/
@ -15978,14 +16004,6 @@ F: Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
F: drivers/misc/fastrpc.c
F: include/uapi/misc/fastrpc.h
QUALCOMM GENERIC INTERFACE I2C DRIVER
M: Akash Asthana <akashast@codeaurora.org>
M: Mukesh Savaliya <msavaliy@codeaurora.org>
L: linux-i2c@vger.kernel.org
L: linux-arm-msm@vger.kernel.org
S: Supported
F: drivers/i2c/busses/i2c-qcom-geni.c
QUALCOMM HEXAGON ARCHITECTURE
M: Brian Cain <bcain@codeaurora.org>
L: linux-hexagon@vger.kernel.org
@ -16057,8 +16075,8 @@ F: Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
F: drivers/mtd/nand/raw/qcom_nandc.c
QUALCOMM RMNET DRIVER
M: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
M: Sean Tranchetti <stranche@codeaurora.org>
M: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
M: Sean Tranchetti <quic_stranche@quicinc.com>
L: netdev@vger.kernel.org
S: Maintained
F: Documentation/networking/device_drivers/cellular/qualcomm/rmnet.rst
@ -16084,11 +16102,10 @@ F: Documentation/devicetree/bindings/media/*venus*
F: drivers/media/platform/qcom/venus/
QUALCOMM WCN36XX WIRELESS DRIVER
M: Kalle Valo <kvalo@kernel.org>
M: Loic Poulain <loic.poulain@linaro.org>
L: wcn36xx@lists.infradead.org
S: Supported
W: https://wireless.wiki.kernel.org/en/users/Drivers/wcn36xx
T: git git://github.com/KrasnikovEugene/wcn36xx.git
F: drivers/net/wireless/ath/wcn36xx/
QUANTENNA QTNFMAC WIRELESS DRIVER
@ -16351,6 +16368,7 @@ F: drivers/watchdog/realtek_otto_wdt.c
REALTEK RTL83xx SMI DSA ROUTER CHIPS
M: Linus Walleij <linus.walleij@linaro.org>
M: Alvin Šipraga <alsi@bang-olufsen.dk>
S: Maintained
F: Documentation/devicetree/bindings/net/dsa/realtek-smi.txt
F: drivers/net/dsa/realtek-smi*
@ -16470,6 +16488,14 @@ F: Documentation/devicetree/bindings/i2c/renesas,rmobile-iic.yaml
F: drivers/i2c/busses/i2c-rcar.c
F: drivers/i2c/busses/i2c-sh_mobile.c
RENESAS R-CAR SATA DRIVER
R: Sergey Shtylyov <s.shtylyov@omp.ru>
S: Supported
L: linux-ide@vger.kernel.org
L: linux-renesas-soc@vger.kernel.org
F: Documentation/devicetree/bindings/ata/renesas,rcar-sata.yaml
F: drivers/ata/sata_rcar.c
RENESAS R-CAR THERMAL DRIVERS
M: Niklas Söderlund <niklas.soderlund@ragnatech.se>
L: linux-renesas-soc@vger.kernel.org
@ -16538,8 +16564,9 @@ M: Johannes Berg <johannes@sipsolutions.net>
L: linux-wireless@vger.kernel.org
S: Maintained
W: https://wireless.wiki.kernel.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
Q: https://patchwork.kernel.org/project/linux-wireless/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git
F: Documentation/ABI/stable/sysfs-class-rfkill
F: Documentation/driver-api/rfkill.rst
F: include/linux/rfkill.h
@ -16804,8 +16831,8 @@ F: drivers/video/fbdev/savage/
S390
M: Heiko Carstens <hca@linux.ibm.com>
M: Vasily Gorbik <gor@linux.ibm.com>
M: Christian Borntraeger <borntraeger@linux.ibm.com>
R: Alexander Gordeev <agordeev@linux.ibm.com>
M: Alexander Gordeev <agordeev@linux.ibm.com>
R: Christian Borntraeger <borntraeger@linux.ibm.com>
R: Sven Schnelle <svens@linux.ibm.com>
L: linux-s390@vger.kernel.org
S: Supported
@ -16920,7 +16947,7 @@ W: http://www.ibm.com/developerworks/linux/linux390/
F: drivers/s390/scsi/zfcp_*
S3C ADC BATTERY DRIVER
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
L: linux-samsung-soc@vger.kernel.org
S: Odd Fixes
F: drivers/power/supply/s3c_adc_battery.c
@ -16965,7 +16992,7 @@ F: Documentation/admin-guide/LSM/SafeSetID.rst
F: security/safesetid/
SAMSUNG AUDIO (ASoC) DRIVERS
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Supported
@ -16973,7 +17000,7 @@ F: Documentation/devicetree/bindings/sound/samsung*
F: sound/soc/samsung/
SAMSUNG EXYNOS PSEUDO RANDOM NUMBER GENERATOR (RNG) DRIVER
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
L: linux-crypto@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
S: Maintained
@ -17008,7 +17035,7 @@ S: Maintained
F: drivers/platform/x86/samsung-laptop.c
SAMSUNG MULTIFUNCTION PMIC DEVICE DRIVERS
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
L: linux-kernel@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
@ -17034,7 +17061,7 @@ F: drivers/media/platform/s3c-camif/
F: include/media/drv-intf/s3c_camif.h
SAMSUNG S3FWRN5 NFC DRIVER
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Krzysztof Opasiak <k.opasiak@samsung.com>
L: linux-nfc@lists.01.org (subscribers-only)
S: Maintained
@ -17056,7 +17083,7 @@ S: Supported
F: drivers/media/i2c/s5k5baf.c
SAMSUNG S5P Security SubSystem (SSS) DRIVER
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Vladimir Zapolskiy <vz@mleia.com>
L: linux-crypto@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
@ -17076,6 +17103,7 @@ SAMSUNG SOC CLOCK DRIVERS
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
M: Tomasz Figa <tomasz.figa@gmail.com>
M: Chanwoo Choi <cw00.choi@samsung.com>
R: Alim Akhtar <alim.akhtar@samsung.com>
L: linux-samsung-soc@vger.kernel.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk.git
@ -17090,7 +17118,7 @@ F: include/linux/clk/samsung.h
F: include/linux/platform_data/clk-s3c2410.h
SAMSUNG SPI DRIVERS
M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Andi Shyti <andi@etezian.org>
L: linux-spi@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
@ -17712,6 +17740,21 @@ S: Maintained
W: http://www.winischhofer.at/linuxsisusbvga.shtml
F: drivers/usb/misc/sisusbvga/
SL28 CPLD MFD DRIVER
M: Michael Walle <michael@walle.cc>
S: Maintained
F: Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml
F: Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml
F: Documentation/devicetree/bindings/interrupt-controller/kontron,sl28cpld-intc.yaml
F: Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
F: Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml
F: Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml
F: drivers/gpio/gpio-sl28cpld.c
F: drivers/hwmon/sl28cpld-hwmon.c
F: drivers/irqchip/irq-sl28cpld.c
F: drivers/pwm/pwm-sl28cpld.c
F: drivers/watchdog/sl28cpld_wdt.c
SLAB ALLOCATOR
M: Christoph Lameter <cl@linux.com>
M: Pekka Enberg <penberg@kernel.org>
@ -17719,8 +17762,10 @@ M: David Rientjes <rientjes@google.com>
M: Joonsoo Kim <iamjoonsoo.kim@lge.com>
M: Andrew Morton <akpm@linux-foundation.org>
M: Vlastimil Babka <vbabka@suse.cz>
R: Roman Gushchin <roman.gushchin@linux.dev>
L: linux-mm@kvack.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git
F: include/linux/sl?b*.h
F: mm/sl?b*
@ -18428,7 +18473,7 @@ F: Documentation/devicetree/bindings/sound/st,sti-asoc-card.txt
F: sound/soc/sti/
STI CEC DRIVER
M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
M: Alain Volmat <alain.volmat@foss.st.com>
S: Maintained
F: Documentation/devicetree/bindings/media/stih-cec.txt
F: drivers/media/cec/platform/sti/
@ -19582,6 +19627,14 @@ F: Documentation/trace/timerlat-tracer.rst
F: Documentation/trace/hwlat_detector.rst
F: arch/*/kernel/trace.c
Real-time Linux Analysis (RTLA) tools
M: Daniel Bristot de Oliveira <bristot@kernel.org>
M: Steven Rostedt <rostedt@goodmis.org>
L: linux-trace-devel@vger.kernel.org
S: Maintained
F: Documentation/tools/rtla/
F: tools/tracing/rtla/
TRADITIONAL CHINESE DOCUMENTATION
M: Hu Haowen <src.res@email.cn>
L: linux-doc-tw-discuss@lists.sourceforge.net
@ -21415,7 +21468,6 @@ THE REST
M: Linus Torvalds <torvalds@linux-foundation.org>
L: linux-kernel@vger.kernel.org
S: Buried alive in reporters
Q: http://patchwork.kernel.org/project/LKML/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
F: *
F: */

4
Makefile
Просмотреть файл

@ -2,8 +2,8 @@
VERSION = 5
PATCHLEVEL = 17
SUBLEVEL = 0
EXTRAVERSION = -rc1
NAME = Gobble Gobble
EXTRAVERSION = -rc8
NAME = Superb Owl
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"

1
arch/arm/Kconfig
Просмотреть файл

@ -83,6 +83,7 @@ config ARM
select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
select HAVE_CONTEXT_TRACKING
select HAVE_C_RECORDMCOUNT
select HAVE_BUILDTIME_MCOUNT_SORT
select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL
select HAVE_DMA_CONTIGUOUS if MMU
select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU

1
arch/arm/boot/dts/Makefile
Просмотреть файл

@ -806,6 +806,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += \
logicpd-som-lv-37xx-devkit.dtb \
omap3430-sdp.dtb \
omap3-beagle.dtb \
omap3-beagle-ab4.dtb \
omap3-beagle-xm.dtb \
omap3-beagle-xm-ab.dtb \
omap3-cm-t3517.dtb \

2
arch/arm/boot/dts/am335x-wega.dtsi
Просмотреть файл

@ -55,7 +55,7 @@
2 1 0 0 /* # 0: INACTIVE, 1: TX, 2: RX */
>;
tx-num-evt = <16>;
rt-num-evt = <16>;
rx-num-evt = <16>;
status = "okay";
};

2
arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
Просмотреть файл

@ -118,7 +118,7 @@
};
pinctrl_fwqspid_default: fwqspid_default {
function = "FWQSPID";
function = "FWSPID";
groups = "FWQSPID";
};

1
arch/arm/boot/dts/bcm2711.dtsi
Просмотреть файл

@ -290,6 +290,7 @@
hvs: hvs@7e400000 {
compatible = "brcm,bcm2711-hvs";
reg = <0x7e400000 0x8000>;
interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
};

20
arch/arm/boot/dts/dra7.dtsi
Просмотреть файл

@ -160,7 +160,7 @@
target-module@48210000 {
compatible = "ti,sysc-omap4-simple", "ti,sysc";
power-domains = <&prm_mpu>;
clocks = <&mpu_clkctrl DRA7_MPU_CLKCTRL 0>;
clocks = <&mpu_clkctrl DRA7_MPU_MPU_CLKCTRL 0>;
clock-names = "fck";
#address-cells = <1>;
#size-cells = <1>;
@ -875,10 +875,10 @@
<0x58000014 4>;
reg-names = "rev", "syss";
ti,syss-mask = <1>;
clocks = <&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 0>,
<&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 9>,
<&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 10>,
<&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 11>;
clocks = <&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 0>,
<&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 9>,
<&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 10>,
<&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 11>;
clock-names = "fck", "hdmi_clk", "sys_clk", "tv_clk";
#address-cells = <1>;
#size-cells = <1>;
@ -912,7 +912,7 @@
SYSC_OMAP2_SOFTRESET |
SYSC_OMAP2_AUTOIDLE)>;
ti,syss-mask = <1>;
clocks = <&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 8>;
clocks = <&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 8>;
clock-names = "fck";
#address-cells = <1>;
#size-cells = <1>;
@ -939,8 +939,8 @@
<SYSC_IDLE_SMART>,
<SYSC_IDLE_SMART_WKUP>;
ti,sysc-mask = <(SYSC_OMAP4_SOFTRESET)>;
clocks = <&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 9>,
<&dss_clkctrl DRA7_DSS_CORE_CLKCTRL 8>;
clocks = <&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 9>,
<&dss_clkctrl DRA7_DSS_DSS_CORE_CLKCTRL 8>;
clock-names = "fck", "dss_clk";
#address-cells = <1>;
#size-cells = <1>;
@ -979,7 +979,7 @@
compatible = "vivante,gc";
reg = <0x0 0x700>;
interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&dss_clkctrl DRA7_BB2D_CLKCTRL 0>;
clocks = <&dss_clkctrl DRA7_DSS_BB2D_CLKCTRL 0>;
clock-names = "core";
};
};
@ -1333,7 +1333,7 @@
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
assigned-clocks = <&wkupaon_clkctrl DRA7_TIMER1_CLKCTRL 24>;
assigned-clocks = <&wkupaon_clkctrl DRA7_WKUPAON_TIMER1_CLKCTRL 24>;
assigned-clock-parents = <&sys_32k_ck>;
};
};

1
arch/arm/boot/dts/imx23-evk.dts
Просмотреть файл

@ -79,7 +79,6 @@
MX23_PAD_LCD_RESET__GPIO_1_18
MX23_PAD_PWM3__GPIO_1_29
MX23_PAD_PWM4__GPIO_1_30
MX23_PAD_SSP1_DETECT__SSP1_DETECT
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;

5
arch/arm/boot/dts/imx6qdl-udoo.dtsi
Просмотреть файл

@ -5,6 +5,8 @@
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*/
#include <dt-bindings/gpio/gpio.h>
/ {
aliases {
backlight = &backlight;
@ -226,6 +228,7 @@
MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
MX6QDL_PAD_SD3_DAT5__GPIO7_IO00 0x1b0b0
>;
};
@ -304,7 +307,7 @@
&usdhc3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc3>;
non-removable;
cd-gpios = <&gpio7 0 GPIO_ACTIVE_LOW>;
status = "okay";
};

2
arch/arm/boot/dts/imx7ulp.dtsi
Просмотреть файл

@ -259,7 +259,7 @@
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
assigned-clock-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
timeout-sec = <40>;
};

8
arch/arm/boot/dts/meson.dtsi
Просмотреть файл

@ -59,7 +59,7 @@
};
uart_A: serial@84c0 {
compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
compatible = "amlogic,meson6-uart";
reg = <0x84c0 0x18>;
interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
fifo-size = <128>;
@ -67,7 +67,7 @@
};
uart_B: serial@84dc {
compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
compatible = "amlogic,meson6-uart";
reg = <0x84dc 0x18>;
interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
@ -105,7 +105,7 @@
};
uart_C: serial@8700 {
compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
compatible = "amlogic,meson6-uart";
reg = <0x8700 0x18>;
interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
@ -228,7 +228,7 @@
};
uart_AO: serial@4c0 {
compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart";
reg = <0x4c0 0x18>;
interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
status = "disabled";

24
arch/arm/boot/dts/meson8.dtsi
Просмотреть файл

@ -736,27 +736,27 @@
};
&uart_AO {
compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_CLK81>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8-uart", "amlogic,meson-ao-uart";
clocks = <&xtal>, <&clkc CLKID_CLK81>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&uart_A {
compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART0>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8-uart";
clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&uart_B {
compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART1>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8-uart";
clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&uart_C {
compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART2>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8-uart";
clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&usb0 {

24
arch/arm/boot/dts/meson8b.dtsi
Просмотреть файл

@ -724,27 +724,27 @@
};
&uart_AO {
compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_CLK81>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8b-uart", "amlogic,meson-ao-uart";
clocks = <&xtal>, <&clkc CLKID_CLK81>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&uart_A {
compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART0>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8b-uart";
clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&uart_B {
compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART1>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8b-uart";
clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&uart_C {
compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART2>;
clock-names = "baud", "xtal", "pclk";
compatible = "amlogic,meson8b-uart";
clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
clock-names = "xtal", "pclk", "baud";
};
&usb0 {

47
arch/arm/boot/dts/omap3-beagle-ab4.dts Normal file
Просмотреть файл

@ -0,0 +1,47 @@
// SPDX-License-Identifier: GPL-2.0-only
/dts-v1/;
#include "omap3-beagle.dts"
/ {
model = "TI OMAP3 BeagleBoard A to B4";
compatible = "ti,omap3-beagle-ab4", "ti,omap3-beagle", "ti,omap3430", "ti,omap3";
};
/*
* Workaround for capacitor C70 issue, see "Boards revision A and < B5"
* section at https://elinux.org/BeagleBoard_Community
*/
/* Unusable as clocksource because of unreliable oscillator */
&counter32k {
status = "disabled";
};
/* Unusable as clockevent because of unreliable oscillator, allow to idle */
&timer1_target {
/delete-property/ti,no-reset-on-init;
/delete-property/ti,no-idle;
timer@0 {
/delete-property/ti,timer-alwon;
};
};
/* Preferred always-on timer for clocksource */
&timer12_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
/* Always clocked by secure_32k_fck */
};
};
/* Preferred timer for clockevent */
&timer2_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
assigned-clocks = <&gpt2_fck>;
assigned-clock-parents = <&sys_ck>;
};
};

33
arch/arm/boot/dts/omap3-beagle.dts
Просмотреть файл

@ -304,39 +304,6 @@
phys = <0 &hsusb2_phy>;
};
/* Unusable as clocksource because of unreliable oscillator */
&counter32k {
status = "disabled";
};
/* Unusable as clockevent because if unreliable oscillator, allow to idle */
&timer1_target {
/delete-property/ti,no-reset-on-init;
/delete-property/ti,no-idle;
timer@0 {
/delete-property/ti,timer-alwon;
};
};
/* Preferred always-on timer for clocksource */
&timer12_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
/* Always clocked by secure_32k_fck */
};
};
/* Preferred timer for clockevent */
&timer2_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
assigned-clocks = <&gpt2_fck>;
assigned-clock-parents = <&sys_ck>;
};
};
&twl_gpio {
ti,use-leds;
/* pullups: BIT(1) */

18
arch/arm/boot/dts/omap3-devkit8000-common.dtsi
Просмотреть файл

@ -158,6 +158,24 @@
status = "disabled";
};
/* Unusable as clockevent because if unreliable oscillator, allow to idle */
&timer1_target {
/delete-property/ti,no-reset-on-init;
/delete-property/ti,no-idle;
timer@0 {
/delete-property/ti,timer-alwon;
};
};
/* Preferred timer for clockevent */
&timer12_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
/* Always clocked by secure_32k_fck */
};
};
&twl_gpio {
ti,use-leds;
/*

33
arch/arm/boot/dts/omap3-devkit8000.dts
Просмотреть файл

@ -14,36 +14,3 @@
display2 = &tv0;
};
};
/* Unusable as clocksource because of unreliable oscillator */
&counter32k {
status = "disabled";
};
/* Unusable as clockevent because if unreliable oscillator, allow to idle */
&timer1_target {
/delete-property/ti,no-reset-on-init;
/delete-property/ti,no-idle;
timer@0 {
/delete-property/ti,timer-alwon;
};
};
/* Preferred always-on timer for clocksource */
&timer12_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
/* Always clocked by secure_32k_fck */
};
};
/* Preferred timer for clockevent */
&timer2_target {
ti,no-reset-on-init;
ti,no-idle;
timer@0 {
assigned-clocks = <&gpt2_fck>;
assigned-clock-parents = <&sys_ck>;
};
};

4
arch/arm/boot/dts/rk322x.dtsi
Просмотреть файл

@ -718,8 +718,8 @@
interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
assigned-clocks = <&cru SCLK_HDMI_PHY>;
assigned-clock-parents = <&hdmi_phy>;
clocks = <&cru SCLK_HDMI_HDCP>, <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_CEC>;
clock-names = "isfr", "iahb", "cec";
clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>, <&cru SCLK_HDMI_CEC>;
clock-names = "iahb", "isfr", "cec";
pinctrl-names = "default";
pinctrl-0 = <&hdmii2c_xfer &hdmi_hpd &hdmi_cec>;
resets = <&cru SRST_HDMI_P>;

2
arch/arm/boot/dts/rk3288.dtsi
Просмотреть файл

@ -971,7 +971,7 @@
status = "disabled";
};
crypto: cypto-controller@ff8a0000 {
crypto: crypto@ff8a0000 {
compatible = "rockchip,rk3288-crypto";
reg = <0x0 0xff8a0000 0x0 0x4000>;
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;

1
arch/arm/boot/dts/spear320-hmi.dts
Просмотреть файл

@ -235,7 +235,6 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0x41>;
irq-over-gpio;
irq-gpios = <&gpiopinctrl 29 0x4>;
id = <0>;
blocks = <0x5>;

4
arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
Просмотреть файл

@ -185,10 +185,6 @@
cap-sd-highspeed;
cap-mmc-highspeed;
/* All direction control is used */
st,sig-dir-cmd;
st,sig-dir-dat0;
st,sig-dir-dat2;
st,sig-dir-dat31;
st,sig-pin-fbclk;
full-pwr-cycle;
vmmc-supply = <&ab8500_ldo_aux3_reg>;

10
arch/arm/boot/dts/tegra124-nyan-big-fhd.dts
Просмотреть файл

@ -5,7 +5,13 @@
/ {
/* Version of Nyan Big with 1080p panel */
panel {
compatible = "auo,b133htn01";
host1x@50000000 {
dpaux@545c0000 {
aux-bus {
panel: panel {
compatible = "auo,b133htn01";
};
};
};
};
};

15
arch/arm/boot/dts/tegra124-nyan-big.dts
Просмотреть файл

@ -13,12 +13,15 @@
"google,nyan-big-rev1", "google,nyan-big-rev0",
"google,nyan-big", "google,nyan", "nvidia,tegra124";
panel: panel {
compatible = "auo,b133xtn01";
power-supply = <&vdd_3v3_panel>;
backlight = <&backlight>;
ddc-i2c-bus = <&dpaux>;
host1x@50000000 {
dpaux@545c0000 {
aux-bus {
panel: panel {
compatible = "auo,b133xtn01";
backlight = <&backlight>;
};
};
};
};
mmc@700b0400 { /* SD Card on this bus */

15
arch/arm/boot/dts/tegra124-nyan-blaze.dts
Просмотреть файл

@ -15,12 +15,15 @@
"google,nyan-blaze-rev0", "google,nyan-blaze",
"google,nyan", "nvidia,tegra124";
panel: panel {
compatible = "samsung,ltn140at29-301";
power-supply = <&vdd_3v3_panel>;
backlight = <&backlight>;
ddc-i2c-bus = <&dpaux>;
host1x@50000000 {
dpaux@545c0000 {
aux-bus {
panel: panel {
compatible = "samsung,ltn140at29-301";
backlight = <&backlight>;
};
};
};
};
sound {

14
arch/arm/boot/dts/tegra124-venice2.dts
Просмотреть файл

@ -48,6 +48,13 @@
dpaux@545c0000 {
vdd-supply = <&vdd_3v3_panel>;
status = "okay";
aux-bus {
panel: panel {
compatible = "lg,lp129qe";
backlight = <&backlight>;
};
};
};
};
@ -1080,13 +1087,6 @@
};
};
panel: panel {
compatible = "lg,lp129qe";
power-supply = <&vdd_3v3_panel>;
backlight = <&backlight>;
ddc-i2c-bus = <&dpaux>;
};
vdd_mux: regulator-mux {
compatible = "regulator-fixed";
regulator-name = "+VDD_MUX";

4
arch/arm/crypto/blake2s-shash.c
Просмотреть файл

@ -13,12 +13,12 @@
static int crypto_blake2s_update_arm(struct shash_desc *desc,
const u8 *in, unsigned int inlen)
{
return crypto_blake2s_update(desc, in, inlen, blake2s_compress);
return crypto_blake2s_update(desc, in, inlen, false);
}
static int crypto_blake2s_final_arm(struct shash_desc *desc, u8 *out)
{
return crypto_blake2s_final(desc, out, blake2s_compress);
return crypto_blake2s_final(desc, out, false);
}
#define BLAKE2S_ALG(name, driver_name, digest_size) \

12
arch/arm/include/asm/assembler.h
Просмотреть файл

@ -107,6 +107,16 @@
.endm
#endif
#if __LINUX_ARM_ARCH__ < 7
.macro dsb, args
mcr p15, 0, r0, c7, c10, 4
.endm
.macro isb, args
mcr p15, 0, r0, c7, c5, 4
.endm
#endif
.macro asm_trace_hardirqs_off, save=1
#if defined(CONFIG_TRACE_IRQFLAGS)
.if \save
@ -288,6 +298,7 @@
*/
#define ALT_UP(instr...) \
.pushsection ".alt.smp.init", "a" ;\
.align 2 ;\
.long 9998b - . ;\
9997: instr ;\
.if . - 9997b == 2 ;\
@ -299,6 +310,7 @@
.popsection
#define ALT_UP_B(label) \
.pushsection ".alt.smp.init", "a" ;\
.align 2 ;\
.long 9998b - . ;\
W(b) . + (label - 9998b) ;\
.popsection

1
arch/arm/include/asm/processor.h
Просмотреть файл

@ -96,6 +96,7 @@ unsigned long __get_wchan(struct task_struct *p);
#define __ALT_SMP_ASM(smp, up) \
"9998: " smp "\n" \
" .pushsection \".alt.smp.init\", \"a\"\n" \
" .align 2\n" \
" .long 9998b - .\n" \
" " up "\n" \
" .popsection\n"

38
arch/arm/include/asm/spectre.h Normal file
Просмотреть файл

@ -0,0 +1,38 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __ASM_SPECTRE_H
#define __ASM_SPECTRE_H
enum {
SPECTRE_UNAFFECTED,
SPECTRE_MITIGATED,
SPECTRE_VULNERABLE,
};
enum {
__SPECTRE_V2_METHOD_BPIALL,
__SPECTRE_V2_METHOD_ICIALLU,
__SPECTRE_V2_METHOD_SMC,
__SPECTRE_V2_METHOD_HVC,
__SPECTRE_V2_METHOD_LOOP8,
};
enum {
SPECTRE_V2_METHOD_BPIALL = BIT(__SPECTRE_V2_METHOD_BPIALL),
SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU),
SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC),
SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC),
SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
};
#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
void spectre_v2_update_state(unsigned int state, unsigned int methods);
#else
static inline void spectre_v2_update_state(unsigned int state,
unsigned int methods)
{}
#endif
int spectre_bhb_update_vectors(unsigned int method);
#endif

10
arch/arm/include/asm/uaccess.h
Просмотреть файл

@ -11,6 +11,7 @@
#include <linux/string.h>
#include <asm/memory.h>
#include <asm/domain.h>
#include <asm/unaligned.h>
#include <asm/unified.h>
#include <asm/compiler.h>
@ -497,7 +498,10 @@ do { \
} \
default: __err = __get_user_bad(); break; \
} \
*(type *)(dst) = __val; \
if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) \
put_unaligned(__val, (type *)(dst)); \
else \
*(type *)(dst) = __val; /* aligned by caller */ \
if (__err) \
goto err_label; \
} while (0)
@ -507,7 +511,9 @@ do { \
const type *__pk_ptr = (dst); \
unsigned long __dst = (unsigned long)__pk_ptr; \
int __err = 0; \
type __val = *(type *)src; \
type __val = IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) \
? get_unaligned((type *)(src)) \
: *(type *)(src); /* aligned by caller */ \
switch (sizeof(type)) { \
case 1: __put_user_asm_byte(__val, __dst, __err, ""); break; \
case 2: __put_user_asm_half(__val, __dst, __err, ""); break; \

43
arch/arm/include/asm/vmlinux.lds.h
Просмотреть файл

@ -26,6 +26,19 @@
#define ARM_MMU_DISCARD(x) x
#endif
/*
* ld.lld does not support NOCROSSREFS:
* https://github.com/ClangBuiltLinux/linux/issues/1609
*/
#ifdef CONFIG_LD_IS_LLD
#define NOCROSSREFS
#endif
/* Set start/end symbol names to the LMA for the section */
#define ARM_LMA(sym, section) \
sym##_start = LOADADDR(section); \
sym##_end = LOADADDR(section) + SIZEOF(section)
#define PROC_INFO \
. = ALIGN(4); \
__proc_info_begin = .; \
@ -110,19 +123,31 @@
* only thing that matters is their relative offsets
*/
#define ARM_VECTORS \
__vectors_start = .; \
.vectors 0xffff0000 : AT(__vectors_start) { \
*(.vectors) \
__vectors_lma = .; \
OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) { \
.vectors { \
*(.vectors) \
} \
.vectors.bhb.loop8 { \
*(.vectors.bhb.loop8) \
} \
.vectors.bhb.bpiall { \
*(.vectors.bhb.bpiall) \
} \
} \
. = __vectors_start + SIZEOF(.vectors); \
__vectors_end = .; \
ARM_LMA(__vectors, .vectors); \
ARM_LMA(__vectors_bhb_loop8, .vectors.bhb.loop8); \
ARM_LMA(__vectors_bhb_bpiall, .vectors.bhb.bpiall); \
. = __vectors_lma + SIZEOF(.vectors) + \
SIZEOF(.vectors.bhb.loop8) + \
SIZEOF(.vectors.bhb.bpiall); \
\
__stubs_start = .; \
.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_start) { \
__stubs_lma = .; \
.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) { \
*(.stubs) \
} \
. = __stubs_start + SIZEOF(.stubs); \
__stubs_end = .; \
ARM_LMA(__stubs, .stubs); \
. = __stubs_lma + SIZEOF(.stubs); \
\
PROVIDE(vector_fiq_offset = vector_fiq - ADDR(.vectors));

2
arch/arm/kernel/Makefile
Просмотреть файл

@ -106,4 +106,6 @@ endif
obj-$(CONFIG_HAVE_ARM_SMCCC) += smccc-call.o
obj-$(CONFIG_GENERIC_CPU_VULNERABILITIES) += spectre.o
extra-y := $(head-y) vmlinux.lds

79
arch/arm/kernel/entry-armv.S
Просмотреть файл

@ -1002,12 +1002,11 @@ vector_\name:
sub lr, lr, #\correction
.endif
@
@ Save r0, lr_<exception> (parent PC) and spsr_<exception>
@ (parent CPSR)
@
@ Save r0, lr_<exception> (parent PC)
stmia sp, {r0, lr} @ save r0, lr
mrs lr, spsr
@ Save spsr_<exception> (parent CPSR)
2: mrs lr, spsr
str lr, [sp, #8] @ save spsr
@
@ -1028,6 +1027,44 @@ vector_\name:
movs pc, lr @ branch to handler in SVC mode
ENDPROC(vector_\name)
#ifdef CONFIG_HARDEN_BRANCH_HISTORY
.subsection 1
.align 5
vector_bhb_loop8_\name:
.if \correction
sub lr, lr, #\correction
.endif
@ Save r0, lr_<exception> (parent PC)
stmia sp, {r0, lr}
@ bhb workaround
mov r0, #8
3: b . + 4
subs r0, r0, #1
bne 3b
dsb
isb
b 2b
ENDPROC(vector_bhb_loop8_\name)
vector_bhb_bpiall_\name:
.if \correction
sub lr, lr, #\correction
.endif
@ Save r0, lr_<exception> (parent PC)
stmia sp, {r0, lr}
@ bhb workaround
mcr p15, 0, r0, c7, c5, 6 @ BPIALL
@ isb not needed due to "movs pc, lr" in the vector stub
@ which gives a "context synchronisation".
b 2b
ENDPROC(vector_bhb_bpiall_\name)
.previous
#endif
.align 2
@ handler addresses follow this label
1:
@ -1036,6 +1073,10 @@ ENDPROC(vector_\name)
.section .stubs, "ax", %progbits
@ This must be the first word
.word vector_swi
#ifdef CONFIG_HARDEN_BRANCH_HISTORY
.word vector_bhb_loop8_swi
.word vector_bhb_bpiall_swi
#endif
vector_rst:
ARM( swi SYS_ERROR0 )
@ -1150,8 +1191,10 @@ vector_addrexcptn:
* FIQ "NMI" handler
*-----------------------------------------------------------------------------
* Handle a FIQ using the SVC stack allowing FIQ act like NMI on x86
* systems.
* systems. This must be the last vector stub, so lets place it in its own
* subsection.
*/
.subsection 2
vector_stub fiq, FIQ_MODE, 4
.long __fiq_usr @ 0 (USR_26 / USR_32)
@ -1184,6 +1227,30 @@ vector_addrexcptn:
W(b) vector_irq
W(b) vector_fiq
#ifdef CONFIG_HARDEN_BRANCH_HISTORY
.section .vectors.bhb.loop8, "ax", %progbits
.L__vectors_bhb_loop8_start:
W(b) vector_rst
W(b) vector_bhb_loop8_und
W(ldr) pc, .L__vectors_bhb_loop8_start + 0x1004
W(b) vector_bhb_loop8_pabt
W(b) vector_bhb_loop8_dabt
W(b) vector_addrexcptn
W(b) vector_bhb_loop8_irq
W(b) vector_bhb_loop8_fiq
.section .vectors.bhb.bpiall, "ax", %progbits
.L__vectors_bhb_bpiall_start:
W(b) vector_rst
W(b) vector_bhb_bpiall_und
W(ldr) pc, .L__vectors_bhb_bpiall_start + 0x1008
W(b) vector_bhb_bpiall_pabt
W(b) vector_bhb_bpiall_dabt
W(b) vector_addrexcptn
W(b) vector_bhb_bpiall_irq
W(b) vector_bhb_bpiall_fiq
#endif
.data
.align 2

24
arch/arm/kernel/entry-common.S
Просмотреть файл

@ -153,6 +153,29 @@ ENDPROC(ret_from_fork)
*-----------------------------------------------------------------------------
*/
.align 5
#ifdef CONFIG_HARDEN_BRANCH_HISTORY
ENTRY(vector_bhb_loop8_swi)
sub sp, sp, #PT_REGS_SIZE
stmia sp, {r0 - r12}
mov r8, #8
1: b 2f
2: subs r8, r8, #1
bne 1b
dsb
isb
b 3f
ENDPROC(vector_bhb_loop8_swi)
.align 5
ENTRY(vector_bhb_bpiall_swi)
sub sp, sp, #PT_REGS_SIZE
stmia sp, {r0 - r12}
mcr p15, 0, r8, c7, c5, 6 @ BPIALL
isb
b 3f
ENDPROC(vector_bhb_bpiall_swi)
#endif
.align 5
ENTRY(vector_swi)
#ifdef CONFIG_CPU_V7M
@ -160,6 +183,7 @@ ENTRY(vector_swi)
#else
sub sp, sp, #PT_REGS_SIZE
stmia sp, {r0 - r12} @ Calling r0 - r12
3:
ARM( add r8, sp, #S_PC )
ARM( stmdb r8, {sp, lr}^ ) @ Calling sp, lr
THUMB( mov r8, sp )

36
arch/arm/kernel/kgdb.c
Просмотреть файл

@ -154,22 +154,38 @@ static int kgdb_compiled_brk_fn(struct pt_regs *regs, unsigned int instr)
return 0;
}
static struct undef_hook kgdb_brkpt_hook = {
static struct undef_hook kgdb_brkpt_arm_hook = {
.instr_mask = 0xffffffff,
.instr_val = KGDB_BREAKINST,
.cpsr_mask = MODE_MASK,
.cpsr_mask = PSR_T_BIT | MODE_MASK,
.cpsr_val = SVC_MODE,
.fn = kgdb_brk_fn
};
static struct undef_hook kgdb_compiled_brkpt_hook = {
static struct undef_hook kgdb_brkpt_thumb_hook = {
.instr_mask = 0xffff,
.instr_val = KGDB_BREAKINST & 0xffff,
.cpsr_mask = PSR_T_BIT | MODE_MASK,
.cpsr_val = PSR_T_BIT | SVC_MODE,
.fn = kgdb_brk_fn
};
static struct undef_hook kgdb_compiled_brkpt_arm_hook = {
.instr_mask = 0xffffffff,
.instr_val = KGDB_COMPILED_BREAK,
.cpsr_mask = MODE_MASK,
.cpsr_mask = PSR_T_BIT | MODE_MASK,
.cpsr_val = SVC_MODE,
.fn = kgdb_compiled_brk_fn
};
static struct undef_hook kgdb_compiled_brkpt_thumb_hook = {
.instr_mask = 0xffff,
.instr_val = KGDB_COMPILED_BREAK & 0xffff,
.cpsr_mask = PSR_T_BIT | MODE_MASK,
.cpsr_val = PSR_T_BIT | SVC_MODE,
.fn = kgdb_compiled_brk_fn
};
static int __kgdb_notify(struct die_args *args, unsigned long cmd)
{
struct pt_regs *regs = args->regs;
@ -210,8 +226,10 @@ int kgdb_arch_init(void)
if (ret != 0)
return ret;
register_undef_hook(&kgdb_brkpt_hook);
register_undef_hook(&kgdb_compiled_brkpt_hook);
register_undef_hook(&kgdb_brkpt_arm_hook);
register_undef_hook(&kgdb_brkpt_thumb_hook);
register_undef_hook(&kgdb_compiled_brkpt_arm_hook);
register_undef_hook(&kgdb_compiled_brkpt_thumb_hook);
return 0;
}
@ -224,8 +242,10 @@ int kgdb_arch_init(void)
*/
void kgdb_arch_exit(void)
{
unregister_undef_hook(&kgdb_brkpt_hook);
unregister_undef_hook(&kgdb_compiled_brkpt_hook);
unregister_undef_hook(&kgdb_brkpt_arm_hook);
unregister_undef_hook(&kgdb_brkpt_thumb_hook);
unregister_undef_hook(&kgdb_compiled_brkpt_arm_hook);
unregister_undef_hook(&kgdb_compiled_brkpt_thumb_hook);
unregister_die_notifier(&kgdb_notifier);
}

71
arch/arm/kernel/spectre.c Normal file
Просмотреть файл

@ -0,0 +1,71 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/bpf.h>
#include <linux/cpu.h>
#include <linux/device.h>
#include <asm/spectre.h>
static bool _unprivileged_ebpf_enabled(void)
{
#ifdef CONFIG_BPF_SYSCALL
return !sysctl_unprivileged_bpf_disabled;
#else
return false;
#endif
}
ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "Mitigation: __user pointer sanitization\n");
}
static unsigned int spectre_v2_state;
static unsigned int spectre_v2_methods;
void spectre_v2_update_state(unsigned int state, unsigned int method)
{
if (state > spectre_v2_state)
spectre_v2_state = state;
spectre_v2_methods |= method;
}
ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
char *buf)
{
const char *method;
if (spectre_v2_state == SPECTRE_UNAFFECTED)
return sprintf(buf, "%s\n", "Not affected");
if (spectre_v2_state != SPECTRE_MITIGATED)
return sprintf(buf, "%s\n", "Vulnerable");
if (_unprivileged_ebpf_enabled())
return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
switch (spectre_v2_methods) {
case SPECTRE_V2_METHOD_BPIALL:
method = "Branch predictor hardening";
break;
case SPECTRE_V2_METHOD_ICIALLU:
method = "I-cache invalidation";
break;
case SPECTRE_V2_METHOD_SMC:
case SPECTRE_V2_METHOD_HVC:
method = "Firmware call";
break;
case SPECTRE_V2_METHOD_LOOP8:
method = "History overwrite";
break;
default:
method = "Multiple mitigations";
break;
}
return sprintf(buf, "Mitigation: %s\n", method);
}

65
arch/arm/kernel/traps.c
Просмотреть файл

@ -30,6 +30,7 @@
#include <linux/atomic.h>
#include <asm/cacheflush.h>
#include <asm/exception.h>
#include <asm/spectre.h>
#include <asm/unistd.h>
#include <asm/traps.h>
#include <asm/ptrace.h>
@ -789,10 +790,59 @@ static inline void __init kuser_init(void *vectors)
}
#endif
#ifndef CONFIG_CPU_V7M
static void copy_from_lma(void *vma, void *lma_start, void *lma_end)
{
memcpy(vma, lma_start, lma_end - lma_start);
}
static void flush_vectors(void *vma, size_t offset, size_t size)
{
unsigned long start = (unsigned long)vma + offset;
unsigned long end = start + size;
flush_icache_range(start, end);
}
#ifdef CONFIG_HARDEN_BRANCH_HISTORY
int spectre_bhb_update_vectors(unsigned int method)
{
extern char __vectors_bhb_bpiall_start[], __vectors_bhb_bpiall_end[];
extern char __vectors_bhb_loop8_start[], __vectors_bhb_loop8_end[];
void *vec_start, *vec_end;
if (system_state >= SYSTEM_FREEING_INITMEM) {
pr_err("CPU%u: Spectre BHB workaround too late - system vulnerable\n",
smp_processor_id());
return SPECTRE_VULNERABLE;
}
switch (method) {
case SPECTRE_V2_METHOD_LOOP8:
vec_start = __vectors_bhb_loop8_start;
vec_end = __vectors_bhb_loop8_end;
break;
case SPECTRE_V2_METHOD_BPIALL:
vec_start = __vectors_bhb_bpiall_start;
vec_end = __vectors_bhb_bpiall_end;
break;
default:
pr_err("CPU%u: unknown Spectre BHB state %d\n",
smp_processor_id(), method);
return SPECTRE_VULNERABLE;
}
copy_from_lma(vectors_page, vec_start, vec_end);
flush_vectors(vectors_page, 0, vec_end - vec_start);
return SPECTRE_MITIGATED;
}
#endif
void __init early_trap_init(void *vectors_base)
{
#ifndef CONFIG_CPU_V7M
unsigned long vectors = (unsigned long)vectors_base;
extern char __stubs_start[], __stubs_end[];
extern char __vectors_start[], __vectors_end[];
unsigned i;
@ -813,17 +863,20 @@ void __init early_trap_init(void *vectors_base)
* into the vector page, mapped at 0xffff0000, and ensure these
* are visible to the instruction stream.
*/
memcpy((void *)vectors, __vectors_start, __vectors_end - __vectors_start);
memcpy((void *)vectors + 0x1000, __stubs_start, __stubs_end - __stubs_start);
copy_from_lma(vectors_base, __vectors_start, __vectors_end);
copy_from_lma(vectors_base + 0x1000, __stubs_start, __stubs_end);
kuser_init(vectors_base);
flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
flush_vectors(vectors_base, 0, PAGE_SIZE * 2);
}
#else /* ifndef CONFIG_CPU_V7M */
void __init early_trap_init(void *vectors_base)
{
/*
* on V7-M there is no need to copy the vector table to a dedicated
* memory area. The address is configurable and so a table in the kernel
* image can be used.
*/
#endif
}
#endif

1
arch/arm/mach-mstar/Kconfig
Просмотреть файл

@ -3,6 +3,7 @@ menuconfig ARCH_MSTARV7
depends on ARCH_MULTI_V7
select ARM_GIC
select ARM_HEAVY_MB
select HAVE_ARM_ARCH_TIMER
select MST_IRQ
select MSTAR_MSC313_MPLL
help

2
arch/arm/mach-omap2/display.c
Просмотреть файл

@ -263,9 +263,9 @@ static int __init omapdss_init_of(void)
}
r = of_platform_populate(node, NULL, NULL, &pdev->dev);
put_device(&pdev->dev);
if (r) {
pr_err("Unable to populate DSS submodule devices\n");
put_device(&pdev->dev);
return r;
}

4
arch/arm/mach-omap2/omap_hwmod.c
Просмотреть файл

@ -752,8 +752,10 @@ static int __init _init_clkctrl_providers(void)
for_each_matching_node(np, ti_clkctrl_match_table) {
ret = _setup_clkctrl_provider(np);
if (ret)
if (ret) {
of_node_put(np);
break;
}
}
return ret;

2
arch/arm/mach-socfpga/Kconfig
Просмотреть файл

@ -2,6 +2,7 @@
menuconfig ARCH_INTEL_SOCFPGA
bool "Altera SOCFPGA family"
depends on ARCH_MULTI_V7
select ARCH_HAS_RESET_CONTROLLER
select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
@ -18,6 +19,7 @@ menuconfig ARCH_INTEL_SOCFPGA
select PL310_ERRATA_727915
select PL310_ERRATA_753970 if PL310
select PL310_ERRATA_769419
select RESET_CONTROLLER
if ARCH_INTEL_SOCFPGA
config SOCFPGA_SUSPEND

11
arch/arm/mm/Kconfig
Просмотреть файл

@ -830,6 +830,7 @@ config CPU_BPREDICT_DISABLE
config CPU_SPECTRE
bool
select GENERIC_CPU_VULNERABILITIES
config HARDEN_BRANCH_PREDICTOR
bool "Harden the branch predictor against aliasing attacks" if EXPERT
@ -850,6 +851,16 @@ config HARDEN_BRANCH_PREDICTOR
If unsure, say Y.
config HARDEN_BRANCH_HISTORY
bool "Harden Spectre style attacks against branch history" if EXPERT
depends on CPU_SPECTRE
default y
help
Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation. When
taking an exception, a sequence of branches overwrites the branch
history, or branch history is invalidated.
config TLS_REG_EMUL
bool
select NEED_KUSER_HELPERS

2
arch/arm/mm/mmu.c
Просмотреть файл

@ -212,12 +212,14 @@ early_param("ecc", early_ecc);
static int __init early_cachepolicy(char *p)
{
pr_warn("cachepolicy kernel parameter not supported without cp15\n");
return 0;
}
early_param("cachepolicy", early_cachepolicy);
static int __init noalign_setup(char *__unused)
{
pr_warn("noalign kernel parameter not supported without cp15\n");
return 1;
}
__setup("noalign", noalign_setup);

210
arch/arm/mm/proc-v7-bugs.c
Просмотреть файл

@ -6,8 +6,35 @@
#include <asm/cp15.h>
#include <asm/cputype.h>
#include <asm/proc-fns.h>
#include <asm/spectre.h>
#include <asm/system_misc.h>
#ifdef CONFIG_ARM_PSCI
static int __maybe_unused spectre_v2_get_cpu_fw_mitigation_state(void)
{
struct arm_smccc_res res;
arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
switch ((int)res.a0) {
case SMCCC_RET_SUCCESS:
return SPECTRE_MITIGATED;
case SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED:
return SPECTRE_UNAFFECTED;
default:
return SPECTRE_VULNERABLE;
}
}
#else
static int __maybe_unused spectre_v2_get_cpu_fw_mitigation_state(void)
{
return SPECTRE_VULNERABLE;
}
#endif
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
DEFINE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn);
@ -36,13 +63,61 @@ static void __maybe_unused call_hvc_arch_workaround_1(void)
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL);
}
static void cpu_v7_spectre_init(void)
static unsigned int spectre_v2_install_workaround(unsigned int method)
{
const char *spectre_v2_method = NULL;
int cpu = smp_processor_id();
if (per_cpu(harden_branch_predictor_fn, cpu))
return;
return SPECTRE_MITIGATED;
switch (method) {
case SPECTRE_V2_METHOD_BPIALL:
per_cpu(harden_branch_predictor_fn, cpu) =
harden_branch_predictor_bpiall;
spectre_v2_method = "BPIALL";
break;
case SPECTRE_V2_METHOD_ICIALLU:
per_cpu(harden_branch_predictor_fn, cpu) =
harden_branch_predictor_iciallu;
spectre_v2_method = "ICIALLU";
break;
case SPECTRE_V2_METHOD_HVC:
per_cpu(harden_branch_predictor_fn, cpu) =
call_hvc_arch_workaround_1;
cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
spectre_v2_method = "hypervisor";
break;
case SPECTRE_V2_METHOD_SMC:
per_cpu(harden_branch_predictor_fn, cpu) =
call_smc_arch_workaround_1;
cpu_do_switch_mm = cpu_v7_smc_switch_mm;
spectre_v2_method = "firmware";
break;
}
if (spectre_v2_method)
pr_info("CPU%u: Spectre v2: using %s workaround\n",
smp_processor_id(), spectre_v2_method);
return SPECTRE_MITIGATED;
}
#else
static unsigned int spectre_v2_install_workaround(unsigned int method)
{
pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n",
smp_processor_id());
return SPECTRE_VULNERABLE;
}
#endif
static void cpu_v7_spectre_v2_init(void)
{
unsigned int state, method = 0;
switch (read_cpuid_part()) {
case ARM_CPU_PART_CORTEX_A8:
@ -51,69 +126,133 @@ static void cpu_v7_spectre_init(void)
case ARM_CPU_PART_CORTEX_A17:
case ARM_CPU_PART_CORTEX_A73:
case ARM_CPU_PART_CORTEX_A75:
per_cpu(harden_branch_predictor_fn, cpu) =
harden_branch_predictor_bpiall;
spectre_v2_method = "BPIALL";
state = SPECTRE_MITIGATED;
method = SPECTRE_V2_METHOD_BPIALL;
break;
case ARM_CPU_PART_CORTEX_A15:
case ARM_CPU_PART_BRAHMA_B15:
per_cpu(harden_branch_predictor_fn, cpu) =
harden_branch_predictor_iciallu;
spectre_v2_method = "ICIALLU";
state = SPECTRE_MITIGATED;
method = SPECTRE_V2_METHOD_ICIALLU;
break;
#ifdef CONFIG_ARM_PSCI
case ARM_CPU_PART_BRAHMA_B53:
/* Requires no workaround */
state = SPECTRE_UNAFFECTED;
break;
default:
/* Other ARM CPUs require no workaround */
if (read_cpuid_implementor() == ARM_CPU_IMP_ARM)
if (read_cpuid_implementor() == ARM_CPU_IMP_ARM) {
state = SPECTRE_UNAFFECTED;
break;
fallthrough;
/* Cortex A57/A72 require firmware workaround */
case ARM_CPU_PART_CORTEX_A57:
case ARM_CPU_PART_CORTEX_A72: {
struct arm_smccc_res res;
}
arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 != 0)
return;
fallthrough;
/* Cortex A57/A72 require firmware workaround */
case ARM_CPU_PART_CORTEX_A57:
case ARM_CPU_PART_CORTEX_A72:
state = spectre_v2_get_cpu_fw_mitigation_state();
if (state != SPECTRE_MITIGATED)
break;
switch (arm_smccc_1_1_get_conduit()) {
case SMCCC_CONDUIT_HVC:
per_cpu(harden_branch_predictor_fn, cpu) =
call_hvc_arch_workaround_1;
cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
spectre_v2_method = "hypervisor";
method = SPECTRE_V2_METHOD_HVC;
break;
case SMCCC_CONDUIT_SMC:
per_cpu(harden_branch_predictor_fn, cpu) =
call_smc_arch_workaround_1;
cpu_do_switch_mm = cpu_v7_smc_switch_mm;
spectre_v2_method = "firmware";
method = SPECTRE_V2_METHOD_SMC;
break;
default:
state = SPECTRE_VULNERABLE;
break;
}
}
#endif
if (state == SPECTRE_MITIGATED)
state = spectre_v2_install_workaround(method);
spectre_v2_update_state(state, method);
}
#ifdef CONFIG_HARDEN_BRANCH_HISTORY
static int spectre_bhb_method;
static const char *spectre_bhb_method_name(int method)
{
switch (method) {
case SPECTRE_V2_METHOD_LOOP8:
return "loop";
case SPECTRE_V2_METHOD_BPIALL:
return "BPIALL";
default:
return "unknown";
}
}
static int spectre_bhb_install_workaround(int method)
{
if (spectre_bhb_method != method) {
if (spectre_bhb_method) {
pr_err("CPU%u: Spectre BHB: method disagreement, system vulnerable\n",
smp_processor_id());
return SPECTRE_VULNERABLE;
}
if (spectre_bhb_update_vectors(method) == SPECTRE_VULNERABLE)
return SPECTRE_VULNERABLE;
spectre_bhb_method = method;
}
if (spectre_v2_method)
pr_info("CPU%u: Spectre v2: using %s workaround\n",
smp_processor_id(), spectre_v2_method);
pr_info("CPU%u: Spectre BHB: using %s workaround\n",
smp_processor_id(), spectre_bhb_method_name(method));
return SPECTRE_MITIGATED;
}
#else
static void cpu_v7_spectre_init(void)
static int spectre_bhb_install_workaround(int method)
{
return SPECTRE_VULNERABLE;
}
#endif
static void cpu_v7_spectre_bhb_init(void)
{
unsigned int state, method = 0;
switch (read_cpuid_part()) {
case ARM_CPU_PART_CORTEX_A15:
case ARM_CPU_PART_BRAHMA_B15:
case ARM_CPU_PART_CORTEX_A57:
case ARM_CPU_PART_CORTEX_A72:
state = SPECTRE_MITIGATED;
method = SPECTRE_V2_METHOD_LOOP8;
break;
case ARM_CPU_PART_CORTEX_A73:
case ARM_CPU_PART_CORTEX_A75:
state = SPECTRE_MITIGATED;
method = SPECTRE_V2_METHOD_BPIALL;
break;
default:
state = SPECTRE_UNAFFECTED;
break;
}
if (state == SPECTRE_MITIGATED)
state = spectre_bhb_install_workaround(method);
spectre_v2_update_state(state, method);
}
static __maybe_unused bool cpu_v7_check_auxcr_set(bool *warned,
u32 mask, const char *msg)
{
@ -142,16 +281,17 @@ static bool check_spectre_auxcr(bool *warned, u32 bit)
void cpu_v7_ca8_ibe(void)
{
if (check_spectre_auxcr(this_cpu_ptr(&spectre_warned), BIT(6)))
cpu_v7_spectre_init();
cpu_v7_spectre_v2_init();
}
void cpu_v7_ca15_ibe(void)
{
if (check_spectre_auxcr(this_cpu_ptr(&spectre_warned), BIT(0)))
cpu_v7_spectre_init();
cpu_v7_spectre_v2_init();
}
void cpu_v7_bugs_init(void)
{
cpu_v7_spectre_init();
cpu_v7_spectre_v2_init();
cpu_v7_spectre_bhb_init();
}

3
arch/arm/probes/kprobes/Makefile
Просмотреть файл

@ -1,4 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
KASAN_SANITIZE_actions-common.o := n
KASAN_SANITIZE_actions-arm.o := n
KASAN_SANITIZE_actions-thumb.o := n
obj-$(CONFIG_KPROBES) += core.o actions-common.o checkers-common.o
obj-$(CONFIG_ARM_KPROBES_TEST) += test-kprobes.o
test-kprobes-objs := test-core.o

110
arch/arm64/Kconfig
Просмотреть файл

@ -670,15 +670,42 @@ config ARM64_ERRATUM_1508412
config ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
bool
config ARM64_ERRATUM_2051678
bool "Cortex-A510: 2051678: disable Hardware Update of the page table dirty bit"
default y
help
This options adds the workaround for ARM Cortex-A510 erratum ARM64_ERRATUM_2051678.
Affected Coretex-A510 might not respect the ordering rules for
hardware update of the page table's dirty bit. The workaround
is to not enable the feature on affected CPUs.
If unsure, say Y.
config ARM64_ERRATUM_2077057
bool "Cortex-A510: 2077057: workaround software-step corrupting SPSR_EL2"
help
This option adds the workaround for ARM Cortex-A510 erratum 2077057.
Affected Cortex-A510 may corrupt SPSR_EL2 when the a step exception is
expected, but a Pointer Authentication trap is taken instead. The
erratum causes SPSR_EL1 to be copied to SPSR_EL2, which could allow
EL1 to cause a return to EL2 with a guest controlled ELR_EL2.
This can only happen when EL2 is stepping EL1.
When these conditions occur, the SPSR_EL2 value is unchanged from the
previous guest entry, and can be restored from the in-memory copy.
If unsure, say Y.
config ARM64_ERRATUM_2119858
bool "Cortex-A710: 2119858: workaround TRBE overwriting trace data in FILL mode"
bool "Cortex-A710/X2: 2119858: workaround TRBE overwriting trace data in FILL mode"
default y
depends on CORESIGHT_TRBE
select ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
help
This option adds the workaround for ARM Cortex-A710 erratum 2119858.
This option adds the workaround for ARM Cortex-A710/X2 erratum 2119858.
Affected Cortex-A710 cores could overwrite up to 3 cache lines of trace
Affected Cortex-A710/X2 cores could overwrite up to 3 cache lines of trace
data at the base of the buffer (pointed to by TRBASER_EL1) in FILL mode in
the event of a WRAP event.
@ -761,14 +788,14 @@ config ARM64_ERRATUM_2253138
If unsure, say Y.
config ARM64_ERRATUM_2224489
bool "Cortex-A710: 2224489: workaround TRBE writing to address out-of-range"
bool "Cortex-A710/X2: 2224489: workaround TRBE writing to address out-of-range"
depends on CORESIGHT_TRBE
default y
select ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
help
This option adds the workaround for ARM Cortex-A710 erratum 2224489.
This option adds the workaround for ARM Cortex-A710/X2 erratum 2224489.
Affected Cortex-A710 cores might write to an out-of-range address, not reserved
Affected Cortex-A710/X2 cores might write to an out-of-range address, not reserved
for TRBE. Under some conditions, the TRBE might generate a write to the next
virtually addressed page following the last page of the TRBE address space
(i.e., the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base.
@ -778,6 +805,65 @@ config ARM64_ERRATUM_2224489
If unsure, say Y.
config ARM64_ERRATUM_2064142
bool "Cortex-A510: 2064142: workaround TRBE register writes while disabled"
depends on COMPILE_TEST # Until the CoreSight TRBE driver changes are in
default y
help
This option adds the workaround for ARM Cortex-A510 erratum 2064142.
Affected Cortex-A510 core might fail to write into system registers after the
TRBE has been disabled. Under some conditions after the TRBE has been disabled
writes into TRBE registers TRBLIMITR_EL1, TRBPTR_EL1, TRBBASER_EL1, TRBSR_EL1,
and TRBTRG_EL1 will be ignored and will not be effected.
Work around this in the driver by executing TSB CSYNC and DSB after collection
is stopped and before performing a system register write to one of the affected
registers.
If unsure, say Y.
config ARM64_ERRATUM_2038923
bool "Cortex-A510: 2038923: workaround TRBE corruption with enable"
depends on COMPILE_TEST # Until the CoreSight TRBE driver changes are in
default y
help
This option adds the workaround for ARM Cortex-A510 erratum 2038923.
Affected Cortex-A510 core might cause an inconsistent view on whether trace is
prohibited within the CPU. As a result, the trace buffer or trace buffer state
might be corrupted. This happens after TRBE buffer has been enabled by setting
TRBLIMITR_EL1.E, followed by just a single context synchronization event before
execution changes from a context, in which trace is prohibited to one where it
isn't, or vice versa. In these mentioned conditions, the view of whether trace
is prohibited is inconsistent between parts of the CPU, and the trace buffer or
the trace buffer state might be corrupted.
Work around this in the driver by preventing an inconsistent view of whether the
trace is prohibited or not based on TRBLIMITR_EL1.E by immediately following a
change to TRBLIMITR_EL1.E with at least one ISB instruction before an ERET, or
two ISB instructions if no ERET is to take place.
If unsure, say Y.
config ARM64_ERRATUM_1902691
bool "Cortex-A510: 1902691: workaround TRBE trace corruption"
depends on COMPILE_TEST # Until the CoreSight TRBE driver changes are in
default y
help
This option adds the workaround for ARM Cortex-A510 erratum 1902691.
Affected Cortex-A510 core might cause trace data corruption, when being written
into the memory. Effectively TRBE is broken and hence cannot be used to capture
trace data.
Work around this problem in the driver by just preventing TRBE initialization on
affected cpus. The firmware must have disabled the access to TRBE for the kernel
on such implementations. This will cover the kernel for any firmware that doesn't
do this already.
If unsure, say Y.
config CAVIUM_ERRATUM_22375
bool "Cavium erratum 22375, 24313"
default y
@ -1166,9 +1252,6 @@ config HW_PERF_EVENTS
def_bool y
depends on ARM_PMU
config ARCH_HAS_FILTER_PGPROT
def_bool y
# Supported by clang >= 7.0
config CC_HAVE_SHADOW_CALL_STACK
def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
@ -1297,6 +1380,15 @@ config UNMAP_KERNEL_AT_EL0
If unsure, say Y.
config MITIGATE_SPECTRE_BRANCH_HISTORY
bool "Mitigate Spectre style attacks against branch history" if EXPERT
default y
help
Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation.
When taking an exception from user-space, a sequence of branches
or a firmware call overwrites the branch history.
config RODATA_FULL_DEFAULT_ENABLED
bool "Apply r/o permissions of VM areas also to their linear aliases"
default y

3
arch/arm64/Kconfig.platforms
Просмотреть файл

@ -309,9 +309,6 @@ config ARCH_VISCONTI
help
This enables support for Toshiba Visconti SoCs Family.
config ARCH_VULCAN
def_bool n
config ARCH_XGENE
bool "AppliedMicro X-Gene SOC Family"
help

6
arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
Просмотреть файл

@ -107,6 +107,12 @@
no-map;
};
/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
secmon_reserved_bl32: secmon@5300000 {
reg = <0x0 0x05300000 0x0 0x2000000>;
no-map;
};
linux,cma {
compatible = "shared-dma-pool";
reusable;

8
arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
Просмотреть файл

@ -157,14 +157,6 @@
regulator-always-on;
};
reserved-memory {
/* TEE Reserved Memory */
bl32_reserved: bl32@5000000 {
reg = <0x0 0x05300000 0x0 0x2000000>;
no-map;
};
};
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;

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