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Merge branch 'efi/urgent' into efi/core, to pick up fixes 

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2020-03-08 09:57:58 +01:00
parent 3be5f0d286 d6c066fda9
commit 6120681bdf
451 changed files with 4518 additions and 2615 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/admin-guide/acpi/fan_performance_states.rst
View File

@ -18,7 +18,7 @@ may look as follows::
$ ls -l /sys/bus/acpi/devices/INT3404:00/
total 0
...
...
-r--r--r-- 1 root root 4096 Dec 13 20:38 state0
-r--r--r-- 1 root root 4096 Dec 13 20:38 state1
-r--r--r-- 1 root root 4096 Dec 13 20:38 state10
@ -38,7 +38,7 @@ where each of the "state*" files represents one performance state of the fan
and contains a colon-separated list of 5 integer numbers (fields) with the
following interpretation::
control_percent:trip_point_index:speed_rpm:noise_level_mdb:power_mw
control_percent:trip_point_index:speed_rpm:noise_level_mdb:power_mw
* ``control_percent``: The percent value to be used to set the fan speed to a
specific level using the _FSL object (0-100).

34
Documentation/admin-guide/bootconfig.rst
View File

@ -62,6 +62,30 @@ Or more shorter, written as following::
In both styles, same key words are automatically merged when parsing it
at boot time. So you can append similar trees or key-values.
Same-key Values
---------------
It is prohibited that two or more values or arrays share a same-key.
For example,::
foo = bar, baz
foo = qux # !ERROR! we can not re-define same key
If you want to append the value to existing key as an array member,
you can use ``+=`` operator. For example::
foo = bar, baz
foo += qux
In this case, the key ``foo`` has ``bar``, ``baz`` and ``qux``.
However, a sub-key and a value can not co-exist under a parent key.
For example, following config is NOT allowed.::
foo = value1
foo.bar = value2 # !ERROR! subkey "bar" and value "value1" can NOT co-exist
Comments
--------
@ -102,9 +126,13 @@ Boot Kernel With a Boot Config
==============================
Since the boot configuration file is loaded with initrd, it will be added
to the end of the initrd (initramfs) image file. The Linux kernel decodes
the last part of the initrd image in memory to get the boot configuration
data.
to the end of the initrd (initramfs) image file with size, checksum and
12-byte magic word as below.
[initrd][bootconfig][size(u32)][checksum(u32)][#BOOTCONFIG\n]
The Linux kernel decodes the last part of the initrd image in memory to
get the boot configuration data.
Because of this "piggyback" method, there is no need to change or
update the boot loader and the kernel image itself.

4
Documentation/admin-guide/kernel-parameters.txt
View File

@ -136,6 +136,10 @@
dynamic table installation which will install SSDT
tables to /sys/firmware/acpi/tables/dynamic.
acpi_no_watchdog [HW,ACPI,WDT]
Ignore the ACPI-based watchdog interface (WDAT) and let
a native driver control the watchdog device instead.
acpi_rsdp= [ACPI,EFI,KEXEC]
Pass the RSDP address to the kernel, mostly used
on machines running EFI runtime service to boot the

1
Documentation/dev-tools/kunit/usage.rst
View File

@ -551,6 +551,7 @@ options to your ``.config``:
Once the kernel is built and installed, a simple
.. code-block:: bash
modprobe example-test
...will run the tests.

2
Documentation/devicetree/bindings/arm/arm,scmi.txt
View File

@ -102,7 +102,7 @@ Required sub-node properties:
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
[2] Documentation/devicetree/bindings/power/power-domain.yaml
[3] Documentation/devicetree/bindings/thermal/thermal.txt
[4] Documentation/devicetree/bindings/sram/sram.txt
[4] Documentation/devicetree/bindings/sram/sram.yaml
[5] Documentation/devicetree/bindings/reset/reset.txt
Example:

2
Documentation/devicetree/bindings/arm/arm,scpi.txt
View File

@ -109,7 +109,7 @@ Required properties:
[0] http://infocenter.arm.com/help/topic/com.arm.doc.dui0922b/index.html
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
[2] Documentation/devicetree/bindings/thermal/thermal.txt
[3] Documentation/devicetree/bindings/sram/sram.txt
[3] Documentation/devicetree/bindings/sram/sram.yaml
[4] Documentation/devicetree/bindings/power/power-domain.yaml
Example:

2
Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt
View File

@ -62,7 +62,7 @@ Timer node:
Syscon reboot node:
See Documentation/devicetree/bindings/power/reset/syscon-reboot.txt for the
See Documentation/devicetree/bindings/power/reset/syscon-reboot.yaml for the
detailed list of properties, the two values defined below are specific to the
BCM6328-style timer:

2
Documentation/devicetree/bindings/arm/cpus.yaml
View File

@ -216,7 +216,7 @@ properties:
$ref: '/schemas/types.yaml#/definitions/phandle-array'
description: |
List of phandles to idle state nodes supported
by this cpu (see ./idle-states.txt).
by this cpu (see ./idle-states.yaml).
capacity-dmips-mhz:
$ref: '/schemas/types.yaml#/definitions/uint32'

2
Documentation/devicetree/bindings/arm/fsl.yaml
View File

@ -160,7 +160,7 @@ properties:
items:
- enum:
- armadeus,imx6dl-apf6 # APF6 (Solo) SoM
- armadeus,imx6dl-apf6dldev # APF6 (Solo) SoM on APF6Dev board
- armadeus,imx6dl-apf6dev # APF6 (Solo) SoM on APF6Dev board
- eckelmann,imx6dl-ci4x10
- emtrion,emcon-mx6 # emCON-MX6S or emCON-MX6DL SoM
- emtrion,emcon-mx6-avari # emCON-MX6S or emCON-MX6DL SoM on Avari Base

2
Documentation/devicetree/bindings/arm/hisilicon/hi3519-sysctrl.txt
View File

@ -1,7 +1,7 @@
* Hisilicon Hi3519 System Controller Block
This bindings use the following binding:
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
Required properties:
- compatible: "hisilicon,hi3519-sysctrl".

2
Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt
View File

@ -81,4 +81,4 @@ Example:
};
};
[1]. Documentation/devicetree/bindings/arm/idle-states.txt
[1]. Documentation/devicetree/bindings/arm/idle-states.yaml

2
Documentation/devicetree/bindings/arm/omap/mpu.txt
View File

@ -17,7 +17,7 @@ am335x and am437x only:
- pm-sram: Phandles to ocmcram nodes to be used for power management.
First should be type 'protect-exec' for the driver to use to copy
and run PM functions, second should be regular pool to be used for
data region for code. See Documentation/devicetree/bindings/sram/sram.txt
data region for code. See Documentation/devicetree/bindings/sram/sram.yaml
for more details.
Examples:

36
Documentation/devicetree/bindings/arm/psci.yaml
View File

@ -100,13 +100,14 @@ properties:
bindings in [1]) must specify this property.
[1] Kernel documentation - ARM idle states bindings
Documentation/devicetree/bindings/arm/idle-states.txt
"#power-domain-cells":
description:
The number of cells in a PM domain specifier as per binding in [3].
Must be 0 as to represent a single PM domain.
Documentation/devicetree/bindings/arm/idle-states.yaml
patternProperties:
"^power-domain-":
allOf:
- $ref: "../power/power-domain.yaml#"
type: object
description: |
ARM systems can have multiple cores, sometimes in an hierarchical
arrangement. This often, but not always, maps directly to the processor
power topology of the system. Individual nodes in a topology have their
@ -122,14 +123,8 @@ properties:
helps to implement support for OSI mode and OS implementations may choose
to mandate it.
[3] Documentation/devicetree/bindings/power/power_domain.txt
[4] Documentation/devicetree/bindings/power/domain-idle-state.txt
power-domains:
$ref: '/schemas/types.yaml#/definitions/phandle-array'
description:
List of phandles and PM domain specifiers, as defined by bindings of the
PM domain provider.
[3] Documentation/devicetree/bindings/power/power-domain.yaml
[4] Documentation/devicetree/bindings/power/domain-idle-state.yaml
required:
- compatible
@ -199,7 +194,7 @@ examples:
CPU0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
compatible = "arm,cortex-a53";
reg = <0x0>;
enable-method = "psci";
power-domains = <&CPU_PD0>;
@ -208,7 +203,7 @@ examples:
CPU1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a57", "arm,armv8";
compatible = "arm,cortex-a53";
reg = <0x100>;
enable-method = "psci";
power-domains = <&CPU_PD1>;
@ -224,6 +219,9 @@ examples:
exit-latency-us = <10>;
min-residency-us = <100>;
};
};
domain-idle-states {
CLUSTER_RET: cluster-retention {
compatible = "domain-idle-state";
@ -247,19 +245,19 @@ examples:
compatible = "arm,psci-1.0";
method = "smc";
CPU_PD0: cpu-pd0 {
CPU_PD0: power-domain-cpu0 {
#power-domain-cells = <0>;
domain-idle-states = <&CPU_PWRDN>;
power-domains = <&CLUSTER_PD>;
};
CPU_PD1: cpu-pd1 {
CPU_PD1: power-domain-cpu1 {
#power-domain-cells = <0>;
domain-idle-states = <&CPU_PWRDN>;
power-domains = <&CLUSTER_PD>;
};
CLUSTER_PD: cluster-pd {
CLUSTER_PD: power-domain-cluster {
#power-domain-cells = <0>;
domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>;
};

2
Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
View File

@ -52,7 +52,7 @@ required:
examples:
- |
mlahb: ahb {
mlahb: ahb@38000000 {
compatible = "st,mlahb", "simple-bus";
#address-cells = <1>;
#size-cells = <1>;

1
Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
View File

@ -70,7 +70,6 @@ examples:
#size-cells = <0>;
pmic@3e3 {
compatible = "...";
reg = <0x3e3>;
/* ... */

2
Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
View File

@ -40,7 +40,7 @@ additionalProperties: false
examples:
- |
osc24M: clk@01c20050 {
osc24M: clk@1c20050 {
#clock-cells = <0>;
compatible = "allwinner,sun4i-a10-osc-clk";
reg = <0x01c20050 0x4>;

2
Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml
View File

@ -41,7 +41,7 @@ additionalProperties: false
examples:
- |
clk@0600005c {
clk@600005c {
#clock-cells = <0>;
compatible = "allwinner,sun9i-a80-gt-clk";
reg = <0x0600005c 0x4>;

2
Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
View File

@ -42,7 +42,7 @@ properties:
be part of GCC and hence the TSENS properties can also be part
of the GCC/clock-controller node.
For more details on the TSENS properties please refer
Documentation/devicetree/bindings/thermal/qcom-tsens.txt
Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
nvmem-cell-names:
minItems: 1

6
Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml
View File

@ -49,11 +49,7 @@ examples:
resets = <&tcon_ch0_clk 0>;
port {
#address-cells = <1>;
#size-cells = <0>;
tve0_in_tcon0: endpoint@0 {
reg = <0>;
tve0_in_tcon0: endpoint {
remote-endpoint = <&tcon0_out_tve0>;
};
};

10
Documentation/devicetree/bindings/display/bridge/anx6345.yaml
View File

@ -79,21 +79,15 @@ examples:
#size-cells = <0>;
anx6345_in: port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
anx6345_in_tcon0: endpoint@0 {
reg = <0>;
anx6345_in_tcon0: endpoint {
remote-endpoint = <&tcon0_out_anx6345>;
};
};
anx6345_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
anx6345_out_panel: endpoint@0 {
reg = <0>;
anx6345_out_panel: endpoint {
remote-endpoint = <&panel_in_edp>;
};
};

2
Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml
View File

@ -37,6 +37,8 @@ examples:
dsi@ff450000 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0xff450000 0x1000>;
panel@0 {
compatible = "leadtek,ltk500hd1829";
reg = <0>;

2
Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml
View File

@ -37,6 +37,8 @@ examples:
dsi@ff450000 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0xff450000 0x1000>;
panel@0 {
compatible = "xinpeng,xpp055c272";
reg = <0>;

6
Documentation/devicetree/bindings/display/simple-framebuffer.yaml
View File

@ -174,10 +174,6 @@ examples:
};
};
soc@1c00000 {
lcdc0: lcdc@1c0c000 {
compatible = "allwinner,sun4i-a10-lcdc";
};
};
lcdc0: lcdc { };
...

2
Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt
View File

@ -37,7 +37,7 @@ Optional nodes:
supports a single port with a single endpoint.
- See also Documentation/devicetree/bindings/display/tilcdc/panel.txt and
Documentation/devicetree/bindings/display/tilcdc/tfp410.txt for connecting
Documentation/devicetree/bindings/display/bridge/ti,tfp410.txt for connecting
tfp410 DVI encoder or lcd panel to lcdc
[1] There is an errata about AM335x color wiring. For 16-bit color mode

14
Documentation/devicetree/bindings/dma/ti/k3-udma.yaml
View File

@ -143,7 +143,7 @@ examples:
#size-cells = <2>;
dma-coherent;
dma-ranges;
ranges;
ranges = <0x0 0x30800000 0x0 0x30800000 0x0 0x05000000>;
ti,sci-dev-id = <118>;
@ -169,16 +169,4 @@ examples:
ti,sci-rm-range-rflow = <0x6>; /* GP RFLOW */
};
};
mcasp0: mcasp@02B00000 {
dmas = <&main_udmap 0xc400>, <&main_udmap 0x4400>;
dma-names = "tx", "rx";
};
crypto: crypto@4E00000 {
compatible = "ti,sa2ul-crypto";
dmas = <&main_udmap 0xc000>, <&main_udmap 0x4000>, <&main_udmap 0x4001>;
dma-names = "tx", "rx1", "rx2";
};
};

14
Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
View File

@ -84,31 +84,31 @@ examples:
gpu_opp_table: opp_table0 {
compatible = "operating-points-v2";
opp@533000000 {
opp-533000000 {
opp-hz = /bits/ 64 <533000000>;
opp-microvolt = <1250000>;
};
opp@450000000 {
opp-450000000 {
opp-hz = /bits/ 64 <450000000>;
opp-microvolt = <1150000>;
};
opp@400000000 {
opp-400000000 {
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <1125000>;
};
opp@350000000 {
opp-350000000 {
opp-hz = /bits/ 64 <350000000>;
opp-microvolt = <1075000>;
};
opp@266000000 {
opp-266000000 {
opp-hz = /bits/ 64 <266000000>;
opp-microvolt = <1025000>;
};
opp@160000000 {
opp-160000000 {
opp-hz = /bits/ 64 <160000000>;
opp-microvolt = <925000>;
};
opp@100000000 {
opp-100000000 {
opp-hz = /bits/ 64 <100000000>;
opp-microvolt = <912500>;
};

14
Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
View File

@ -138,31 +138,31 @@ examples:
gpu_opp_table: opp_table0 {
compatible = "operating-points-v2";
opp@533000000 {
opp-533000000 {
opp-hz = /bits/ 64 <533000000>;
opp-microvolt = <1250000>;
};
opp@450000000 {
opp-450000000 {
opp-hz = /bits/ 64 <450000000>;
opp-microvolt = <1150000>;
};
opp@400000000 {
opp-400000000 {
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <1125000>;
};
opp@350000000 {
opp-350000000 {
opp-hz = /bits/ 64 <350000000>;
opp-microvolt = <1075000>;
};
opp@266000000 {
opp-266000000 {
opp-hz = /bits/ 64 <266000000>;
opp-microvolt = <1025000>;
};
opp@160000000 {
opp-160000000 {
opp-hz = /bits/ 64 <160000000>;
opp-microvolt = <925000>;
};
opp@100000000 {
opp-100000000 {
opp-hz = /bits/ 64 <100000000>;
opp-microvolt = <912500>;
};

2
Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
View File

@ -123,7 +123,7 @@ examples:
samsung,syscon-phandle = <&pmu_system_controller>;
/* NTC thermistor is a hwmon device */
ncp15wb473@0 {
ncp15wb473 {
compatible = "murata,ncp15wb473";
pullup-uv = <1800000>;
pullup-ohm = <47000>;

2
Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
View File

@ -62,7 +62,7 @@ required:
examples:
- |
i2c@00000000 {
i2c {
#address-cells = <1>;
#size-cells = <0>;
gt928@5d {

2
Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt
View File

@ -1,7 +1,7 @@
Texas Instruments TWL family (twl4030) pwrbutton module
This module is part of the TWL4030. For more details about the whole
chip see Documentation/devicetree/bindings/mfd/twl-familly.txt.
chip see Documentation/devicetree/bindings/mfd/twl-family.txt.
This module provides a simple power button event via an Interrupt.

2
Documentation/devicetree/bindings/leds/common.yaml
View File

@ -85,7 +85,7 @@ properties:
# LED will act as a back-light, controlled by the framebuffer system
- backlight
# LED will turn on (but for leds-gpio see "default-state" property in
# Documentation/devicetree/bindings/leds/leds-gpio.txt)
# Documentation/devicetree/bindings/leds/leds-gpio.yaml)
- default-on
# LED "double" flashes at a load average based rate
- heartbeat

2
Documentation/devicetree/bindings/leds/register-bit-led.txt
View File

@ -5,7 +5,7 @@ where single bits in a certain register can turn on/off a
single LED. The register bit LEDs appear as children to the
syscon device, with the proper compatible string. For the
syscon bindings see:
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
Each LED is represented as a sub-node of the syscon device. Each
node's name represents the name of the corresponding LED.

2
Documentation/devicetree/bindings/media/ti,cal.yaml
View File

@ -177,7 +177,7 @@ examples:
};
};
i2c5: i2c@4807c000 {
i2c {
clock-frequency = <400000>;
#address-cells = <1>;
#size-cells = <0>;

2
Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
View File

@ -32,7 +32,7 @@ Required only for "ti,emif-am3352" and "ti,emif-am4372":
- sram : Phandles for generic sram driver nodes,
first should be type 'protect-exec' for the driver to use to copy
and run PM functions, second should be regular pool to be used for
data region for code. See Documentation/devicetree/bindings/sram/sram.txt
data region for code. See Documentation/devicetree/bindings/sram/sram.yaml
for more details.
Optional properties:

4
Documentation/devicetree/bindings/mfd/max77650.yaml
View File

@ -97,14 +97,14 @@ examples:
regulators {
compatible = "maxim,max77650-regulator";
max77650_ldo: regulator@0 {
max77650_ldo: regulator-ldo {
regulator-compatible = "ldo";
regulator-name = "max77650-ldo";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <2937500>;
};
max77650_sbb0: regulator@1 {
max77650_sbb0: regulator-sbb0 {
regulator-compatible = "sbb0";
regulator-name = "max77650-sbb0";
regulator-min-microvolt = <800000>;

4
Documentation/devicetree/bindings/mfd/tps65910.txt
View File

@ -26,8 +26,8 @@ Required properties:
ldo6, ldo7, ldo8
- xxx-supply: Input voltage supply regulator.
These entries are require if regulators are enabled for a device. Missing of these
properties can cause the regulator registration fails.
These entries are required if regulators are enabled for a device. Missing these
properties can cause the regulator registration to fail.
If some of input supply is powered through battery or always-on supply then
also it is require to have these parameters with proper node handle of always
on power supply.

0
Documentation/devicetree/bindings/mfd/twl-familly.txt → Documentation/devicetree/bindings/mfd/twl-family.txt
View File

2
Documentation/devicetree/bindings/mfd/zii,rave-sp.txt
View File

@ -20,7 +20,7 @@ RAVE SP consists of the following sub-devices:
Device Description
------ -----------
rave-sp-wdt : Watchdog
rave-sp-nvmem : Interface to onborad EEPROM
rave-sp-nvmem : Interface to onboard EEPROM
rave-sp-backlight : Display backlight
rave-sp-hwmon : Interface to onboard hardware sensors
rave-sp-leds : Interface to onboard LEDs

2
Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
View File

@ -26,7 +26,7 @@ For generic IOMMU bindings, see
Documentation/devicetree/bindings/iommu/iommu.txt.
For arm-smmu binding, see:
Documentation/devicetree/bindings/iommu/arm,smmu.txt.
Documentation/devicetree/bindings/iommu/arm,smmu.yaml.
Required properties:

1
Documentation/devicetree/bindings/mmc/mmc-controller.yaml
View File

@ -370,6 +370,7 @@ examples:
mmc3: mmc@1c12000 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x1c12000 0x200>;
pinctrl-names = "default";
pinctrl-0 = <&mmc3_pins_a>;
vmmc-supply = <&reg_vmmc3>;

2
Documentation/devicetree/bindings/mtd/cadence-nand-controller.txt
View File

@ -27,7 +27,7 @@ Required properties of NAND chips:
- reg: shall contain the native Chip Select ids from 0 to max supported by
the cadence nand flash controller
See Documentation/devicetree/bindings/mtd/nand.txt for more details on
See Documentation/devicetree/bindings/mtd/nand-controller.yaml for more details on
generic bindings.
Example:

2
Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
View File

@ -45,7 +45,7 @@ Optional properties:
switch queue
- resets: a single phandle and reset identifier pair. See
Documentation/devicetree/binding/reset/reset.txt for details.
Documentation/devicetree/bindings/reset/reset.txt for details.
- reset-names: If the "reset" property is specified, this property should have
the value "switch" to denote the switch reset line.

2
Documentation/devicetree/bindings/nvmem/nvmem.yaml
View File

@ -76,6 +76,8 @@ examples:
qfprom: eeprom@700000 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0x00700000 0x100000>;
wp-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
/* ... */

2
Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
View File

@ -86,7 +86,7 @@ examples:
#include <dt-bindings/clock/sun4i-a10-ccu.h>
#include <dt-bindings/reset/sun4i-a10-ccu.h>
usbphy: phy@01c13400 {
usbphy: phy@1c13400 {
#phy-cells = <1>;
compatible = "allwinner,sun4i-a10-usb-phy";
reg = <0x01c13400 0x10>, <0x01c14800 0x4>, <0x01c1c800 0x4>;

2
Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
View File

@ -17,7 +17,7 @@ description: |+
"aspeed,ast2400-scu", "syscon", "simple-mfd"
Refer to the the bindings described in
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
compatible:

2
Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml
View File

@ -18,7 +18,7 @@ description: |+
"aspeed,g5-scu", "syscon", "simple-mfd"
Refer to the the bindings described in
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
compatible:

2
Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
View File

@ -17,7 +17,7 @@ description: |+
"aspeed,ast2600-scu", "syscon", "simple-mfd"
Refer to the the bindings described in
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
compatible:

2
Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
View File

@ -248,7 +248,7 @@ examples:
};
//Example 3 pin groups
pinctrl@60020000 {
pinctrl {
usart1_pins_a: usart1-0 {
pins1 {
pinmux = <STM32_PINMUX('A', 9, AF7)>;

2
Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
View File

@ -18,7 +18,7 @@ description: |+
"amlogic,meson-gx-hhi-sysctrl", "simple-mfd", "syscon"
Refer to the the bindings described in
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
compatible:

33
Documentation/devicetree/bindings/power/domain-idle-state.txt
View File

@ -1,33 +0,0 @@
PM Domain Idle State Node:
A domain idle state node represents the state parameters that will be used to
select the state when there are no active components in the domain.
The state node has the following parameters -
- compatible:
Usage: Required
Value type: <string>
Definition: Must be "domain-idle-state".
- entry-latency-us
Usage: Required
Value type: <prop-encoded-array>
Definition: u32 value representing worst case latency in
microseconds required to enter the idle state.
The exit-latency-us duration may be guaranteed
only after entry-latency-us has passed.
- exit-latency-us
Usage: Required
Value type: <prop-encoded-array>
Definition: u32 value representing worst case latency
in microseconds required to exit the idle state.
- min-residency-us
Usage: Required
Value type: <prop-encoded-array>
Definition: u32 value representing minimum residency duration
in microseconds after which the idle state will yield
power benefits after overcoming the overhead in entering
i the idle state.

64
Documentation/devicetree/bindings/power/domain-idle-state.yaml Normal file
View File

@ -0,0 +1,64 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/domain-idle-state.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: PM Domain Idle States binding description
maintainers:
- Ulf Hansson <ulf.hansson@linaro.org>
description:
A domain idle state node represents the state parameters that will be used to
select the state when there are no active components in the PM domain.
properties:
$nodename:
const: domain-idle-states
patternProperties:
"^(cpu|cluster|domain)-":
type: object
description:
Each state node represents a domain idle state description.
properties:
compatible:
const: domain-idle-state
entry-latency-us:
description:
The worst case latency in microseconds required to enter the idle
state. Note that, the exit-latency-us duration may be guaranteed only
after the entry-latency-us has passed.
exit-latency-us:
description:
The worst case latency in microseconds required to exit the idle
state.
min-residency-us:
description:
The minimum residency duration in microseconds after which the idle
state will yield power benefits, after overcoming the overhead while
entering the idle state.
required:
- compatible
- entry-latency-us
- exit-latency-us
- min-residency-us
examples:
- |
domain-idle-states {
domain_retention: domain-retention {
compatible = "domain-idle-state";
entry-latency-us = <20>;
exit-latency-us = <40>;
min-residency-us = <80>;
};
};
...

24
Documentation/devicetree/bindings/power/power-domain.yaml
View File

@ -25,22 +25,20 @@ description: |+
properties:
$nodename:
pattern: "^(power-controller|power-domain)(@.*)?$"
pattern: "^(power-controller|power-domain)([@-].*)?$"
domain-idle-states:
$ref: /schemas/types.yaml#/definitions/phandle-array
description:
A phandle of an idle-state that shall be soaked into a generic domain
power state. The idle state definitions are compatible with
domain-idle-state specified in
Documentation/devicetree/bindings/power/domain-idle-state.txt
phandles that are not compatible with domain-idle-state will be ignored.
The domain-idle-state property reflects the idle state of this PM domain
and not the idle states of the devices or sub-domains in the PM domain.
Devices and sub-domains have their own idle-states independent
of the parent domain's idle states. In the absence of this property,
the domain would be considered as capable of being powered-on
or powered-off.
description: |
Phandles of idle states that defines the available states for the
power-domain provider. The idle state definitions are compatible with the
domain-idle-state bindings, specified in ./domain-idle-state.yaml.
Note that, the domain-idle-state property reflects the idle states of this
PM domain and not the idle states of the devices or sub-domains in the PM
domain. Devices and sub-domains have their own idle states independent of
the parent domain's idle states. In the absence of this property, the
domain would be considered as capable of being powered-on or powered-off.
operating-points-v2:
$ref: /schemas/types.yaml#/definitions/phandle-array

2
Documentation/devicetree/bindings/power/power_domain.txt
View File

@ -109,4 +109,4 @@ Example:
required-opps = <&domain1_opp_1>;
};
[1]. Documentation/devicetree/bindings/power/domain-idle-state.txt
[1]. Documentation/devicetree/bindings/power/domain-idle-state.yaml

2
Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
View File

@ -161,7 +161,7 @@ The regulator node houses sub-nodes for each regulator within the device. Each
sub-node is identified using the node's name, with valid values listed for each
of the PMICs below.
pm8005:
pm8004:
s2, s5
pm8005:

2
Documentation/devicetree/bindings/regulator/regulator.yaml
View File

@ -191,7 +191,7 @@ patternProperties:
examples:
- |
xyzreg: regulator@0 {
xyzreg: regulator {
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <2500000>;
regulator-always-on;

2
Documentation/devicetree/bindings/reset/st,stm32mp1-rcc.txt
View File

@ -3,4 +3,4 @@ STMicroelectronics STM32MP1 Peripheral Reset Controller
The RCC IP is both a reset and a clock controller.
Please see Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.txt
Please see Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml

2
Documentation/devicetree/bindings/sound/st,stm32-sai.txt
View File

@ -36,7 +36,7 @@ SAI subnodes required properties:
- clock-names: Must contain "sai_ck".
Must also contain "MCLK", if SAI shares a master clock,
with a SAI set as MCLK clock provider.
- dmas: see Documentation/devicetree/bindings/dma/stm32-dma.txt
- dmas: see Documentation/devicetree/bindings/dma/st,stm32-dma.yaml
- dma-names: identifier string for each DMA request line
"tx": if sai sub-block is configured as playback DAI
"rx": if sai sub-block is configured as capture DAI

2
Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt
View File

@ -10,7 +10,7 @@ Required properties:
- clock-names: must contain "kclk"
- interrupts: cpu DAI interrupt line
- dmas: DMA specifiers for audio data DMA and iec control flow DMA
See STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt
See STM32 DMA bindings, Documentation/devicetree/bindings/dma/st,stm32-dma.yaml
- dma-names: two dmas have to be defined, "rx" and "rx-ctrl"
Optional properties:

2
Documentation/devicetree/bindings/spi/st,stm32-spi.yaml
View File

@ -49,7 +49,7 @@ properties:
dmas:
description: |
DMA specifiers for tx and rx dma. DMA fifo mode must be used. See
the STM32 DMA bindings Documentation/devicetree/bindings/dma/stm32-dma.txt.
the STM32 DMA bindings Documentation/devicetree/bindings/dma/st,stm32-dma.yaml.
items:
- description: rx DMA channel
- description: tx DMA channel

2
Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
View File

@ -125,7 +125,7 @@ examples:
#size-cells = <1>;
ranges;
sram_a: sram@00000000 {
sram_a: sram@0 {
compatible = "mmio-sram";
reg = <0x00000000 0xc000>;
#address-cells = <1>;

2
Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
View File

@ -17,7 +17,7 @@ description: |+
"brcm,bcm2711-avs-monitor", "syscon", "simple-mfd"
Refer to the the bindings described in
Documentation/devicetree/bindings/mfd/syscon.txt
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
compatible:

2
Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml
View File

@ -87,7 +87,7 @@ additionalProperties: false
examples:
- |
timer {
timer@1c20c00 {
compatible = "allwinner,sun4i-a10-timer";
reg = <0x01c20c00 0x400>;
interrupts = <22>,

14
Documentation/driver-api/dmaengine/client.rst
View File

@ -151,8 +151,8 @@ The details of these operations are:
Note that callbacks will always be invoked from the DMA
engines tasklet, never from interrupt context.
Optional: per descriptor metadata
---------------------------------
**Optional: per descriptor metadata**
DMAengine provides two ways for metadata support.
DESC_METADATA_CLIENT
@ -199,12 +199,15 @@ Optional: per descriptor metadata
DESC_METADATA_CLIENT
- DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
1. prepare the descriptor (dmaengine_prep_*)
construct the metadata in the client's buffer
2. use dmaengine_desc_attach_metadata() to attach the buffer to the
descriptor
3. submit the transfer
- DMA_DEV_TO_MEM:
1. prepare the descriptor (dmaengine_prep_*)
2. use dmaengine_desc_attach_metadata() to attach the buffer to the
descriptor
@ -215,6 +218,7 @@ Optional: per descriptor metadata
DESC_METADATA_ENGINE
- DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
1. prepare the descriptor (dmaengine_prep_*)
2. use dmaengine_desc_get_metadata_ptr() to get the pointer to the
engine's metadata area
@ -222,7 +226,9 @@ Optional: per descriptor metadata
4. use dmaengine_desc_set_metadata_len() to tell the DMA engine the
amount of data the client has placed into the metadata buffer
5. submit the transfer
- DMA_DEV_TO_MEM:
1. prepare the descriptor (dmaengine_prep_*)
2. submit the transfer
3. on transfer completion, use dmaengine_desc_get_metadata_ptr() to get
@ -278,8 +284,8 @@ Optional: per descriptor metadata
void dma_async_issue_pending(struct dma_chan *chan);
Further APIs:
-------------
Further APIs
------------
1. Terminate APIs

3
Documentation/hwmon/adm1177.rst
View File

@ -20,8 +20,7 @@ Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
devices explicitly. Please see :doc:`/i2c/instantiating-devices` for details.
Sysfs entries

5
Documentation/kbuild/makefiles.rst
View File

@ -765,7 +765,7 @@ is not sufficient this sometimes needs to be explicit.
Example::
#arch/x86/boot/Makefile
subdir- := compressed/
subdir- := compressed
The above assignment instructs kbuild to descend down in the
directory compressed/ when "make clean" is executed.
@ -1379,9 +1379,6 @@ See subsequent chapter for the syntax of the Kbuild file.
in arch/$(ARCH)/include/(uapi/)/asm, Kbuild will automatically generate
a wrapper of the asm-generic one.
The convention is to list one subdir per line and
preferably in alphabetic order.
8 Kbuild Variables
==================

5
Documentation/networking/phy.rst
View File

@ -487,8 +487,9 @@ phy_register_fixup_for_id()::
The stubs set one of the two matching criteria, and set the other one to
match anything.
When phy_register_fixup() or \*_for_uid()/\*_for_id() is called at module,
unregister fixup and free allocate memory are required.
When phy_register_fixup() or \*_for_uid()/\*_for_id() is called at module load
time, the module needs to unregister the fixup and free allocated memory when
it's unloaded.
Call one of following function before unloading module::

1
Documentation/power/index.rst
View File

@ -13,7 +13,6 @@ Power Management
drivers-testing
energy-model
freezing-of-tasks
interface
opp
pci
pm_qos_interface

2
Documentation/sphinx/parallel-wrapper.sh
View File

@ -30,4 +30,4 @@ if [ -n "$parallel" ] ; then
parallel="-j$parallel"
fi
exec "$sphinx" "$parallel" "$@"
exec "$sphinx" $parallel "$@"

1
Documentation/x86/index.rst
View File

@ -19,7 +19,6 @@ x86-specific Documentation
tlb
mtrr
pat
intel_mpx
intel-iommu
intel_txt
amd-memory-encryption

19
MAINTAINERS
View File

@ -693,7 +693,7 @@ ALLWINNER CPUFREQ DRIVER
M: Yangtao Li <tiny.windzz@gmail.com>
L: linux-pm@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt
F: Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml
F: drivers/cpufreq/sun50i-cpufreq-nvmem.c
ALLWINNER CRYPTO DRIVERS
@ -4017,7 +4017,7 @@ M: Cheng-Yi Chiang <cychiang@chromium.org>
S: Maintained
R: Enric Balletbo i Serra <enric.balletbo@collabora.com>
R: Guenter Roeck <groeck@chromium.org>
F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml
F: sound/soc/codecs/cros_ec_codec.*
CIRRUS LOGIC AUDIO CODEC DRIVERS
@ -4475,7 +4475,7 @@ L: linux-media@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/media/platform/sunxi/sun6i-csi/
F: Documentation/devicetree/bindings/media/sun6i-csi.txt
F: Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
CW1200 WLAN driver
M: Solomon Peachy <pizza@shaftnet.org>
@ -5668,7 +5668,7 @@ L: dri-devel@lists.freedesktop.org
T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/stm
F: Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
F: Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
DRM DRIVERS FOR TI LCDC
M: Jyri Sarha <jsarha@ti.com>
@ -7738,7 +7738,7 @@ Hyper-V CORE AND DRIVERS
M: "K. Y. Srinivasan" <kys@microsoft.com>
M: Haiyang Zhang <haiyangz@microsoft.com>
M: Stephen Hemminger <sthemmin@microsoft.com>
M: Sasha Levin <sashal@kernel.org>
M: Wei Liu <wei.liu@kernel.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git
L: linux-hyperv@vger.kernel.org
S: Supported
@ -10164,7 +10164,7 @@ MAXBOTIX ULTRASONIC RANGER IIO DRIVER
M: Andreas Klinger <ak@it-klinger.de>
L: linux-iio@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.txt
F: Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.yaml
F: drivers/iio/proximity/mb1232.c
MAXIM MAX77650 PMIC MFD DRIVER
@ -10467,7 +10467,7 @@ M: Hugues Fruchet <hugues.fruchet@st.com>
L: linux-media@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Supported
F: Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
F: Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
F: drivers/media/platform/stm32/stm32-dcmi.c
MEDIA DRIVERS FOR NVIDIA TEGRA - VDE
@ -12739,7 +12739,7 @@ M: Tom Joseph <tjoseph@cadence.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/cdns,*.txt
F: drivers/pci/controller/pcie-cadence*
F: drivers/pci/controller/cadence/
PCI DRIVER FOR FREESCALE LAYERSCAPE
M: Minghuan Lian <minghuan.Lian@nxp.com>
@ -12952,7 +12952,6 @@ M: Robert Richter <rrichter@marvell.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: Documentation/devicetree/bindings/pci/pci-thunder-*
F: drivers/pci/controller/pci-thunder-*
PCIE DRIVER FOR HISILICON
@ -15922,7 +15921,7 @@ F: drivers/*/stm32-*timer*
F: drivers/pwm/pwm-stm32*
F: include/linux/*/stm32-*tim*
F: Documentation/ABI/testing/*timer-stm32
F: Documentation/devicetree/bindings/*/stm32-*timer*
F: Documentation/devicetree/bindings/*/*stm32-*timer*
F: Documentation/devicetree/bindings/pwm/pwm-stm32*
STMMAC ETHERNET DRIVER

6
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 6
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc4
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*
@ -68,6 +68,7 @@ unexport GREP_OPTIONS
#
# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
# If KBUILD_VERBOSE equals 1 then the above command is displayed.
# If KBUILD_VERBOSE equals 2 then give the reason why each target is rebuilt.
#
# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands
@ -1238,7 +1239,7 @@ ifneq ($(dtstree),)
%.dtb: include/config/kernel.release scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
PHONY += dtbs dtbs_install dt_binding_check
PHONY += dtbs dtbs_install dtbs_check
dtbs dtbs_check: include/config/kernel.release scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree)
@ -1258,6 +1259,7 @@ PHONY += scripts_dtc
scripts_dtc: scripts_basic
$(Q)$(MAKE) $(build)=scripts/dtc
PHONY += dt_binding_check
dt_binding_check: scripts_dtc
$(Q)$(MAKE) $(build)=Documentation/devicetree/bindings

5
arch/Kconfig
View File

@ -738,8 +738,9 @@ config HAVE_STACK_VALIDATION
config HAVE_RELIABLE_STACKTRACE
bool
help
Architecture has a save_stack_trace_tsk_reliable() function which
only returns a stack trace if it can guarantee the trace is reliable.
Architecture has either save_stack_trace_tsk_reliable() or
arch_stack_walk_reliable() function which only returns a stack trace
if it can guarantee the trace is reliable.
config HAVE_ARCH_HASH
bool

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

@ -392,9 +392,6 @@ static inline void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu) {}
static inline void kvm_vcpu_pmu_restore_guest(struct kvm_vcpu *vcpu) {}
static inline void kvm_vcpu_pmu_restore_host(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_vhe_guest_enter(void) {}
static inline void kvm_arm_vhe_guest_exit(void) {}
#define KVM_BP_HARDEN_UNKNOWN -1
#define KVM_BP_HARDEN_WA_NEEDED 0
#define KVM_BP_HARDEN_NOT_REQUIRED 1

2
arch/arm64/include/asm/arch_gicv3.h
View File

@ -32,7 +32,7 @@ static inline void gic_write_eoir(u32 irq)
isb();
}
static inline void gic_write_dir(u32 irq)
static __always_inline void gic_write_dir(u32 irq)
{
write_sysreg_s(irq, SYS_ICC_DIR_EL1);
isb();

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

@ -69,7 +69,7 @@ static inline int icache_is_aliasing(void)
return test_bit(ICACHEF_ALIASING, &__icache_flags);
}
static inline int icache_is_vpipt(void)
static __always_inline int icache_is_vpipt(void)
{
return test_bit(ICACHEF_VPIPT, &__icache_flags);
}

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

@ -145,7 +145,7 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page *);
static inline void __flush_icache_all(void)
static __always_inline void __flush_icache_all(void)
{
if (cpus_have_const_cap(ARM64_HAS_CACHE_DIC))
return;

10
arch/arm64/include/asm/cpufeature.h
View File

@ -435,13 +435,13 @@ cpuid_feature_extract_signed_field(u64 features, int field)
return cpuid_feature_extract_signed_field_width(features, field, 4);
}
static inline unsigned int __attribute_const__
static __always_inline unsigned int __attribute_const__
cpuid_feature_extract_unsigned_field_width(u64 features, int field, int width)
{
return (u64)(features << (64 - width - field)) >> (64 - width);
}
static inline unsigned int __attribute_const__
static __always_inline unsigned int __attribute_const__
cpuid_feature_extract_unsigned_field(u64 features, int field)
{
return cpuid_feature_extract_unsigned_field_width(features, field, 4);
@ -564,7 +564,7 @@ static inline bool system_supports_mixed_endian(void)
return val == 0x1;
}
static inline bool system_supports_fpsimd(void)
static __always_inline bool system_supports_fpsimd(void)
{
return !cpus_have_const_cap(ARM64_HAS_NO_FPSIMD);
}
@ -575,13 +575,13 @@ static inline bool system_uses_ttbr0_pan(void)
!cpus_have_const_cap(ARM64_HAS_PAN);
}
static inline bool system_supports_sve(void)
static __always_inline bool system_supports_sve(void)
{
return IS_ENABLED(CONFIG_ARM64_SVE) &&
cpus_have_const_cap(ARM64_SVE);
}
static inline bool system_supports_cnp(void)
static __always_inline bool system_supports_cnp(void)
{
return IS_ENABLED(CONFIG_ARM64_CNP) &&
cpus_have_const_cap(ARM64_HAS_CNP);

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

@ -34,7 +34,7 @@ static inline void __raw_writew(u16 val, volatile void __iomem *addr)
}
#define __raw_writel __raw_writel
static inline void __raw_writel(u32 val, volatile void __iomem *addr)
static __always_inline void __raw_writel(u32 val, volatile void __iomem *addr)
{
asm volatile("str %w0, [%1]" : : "rZ" (val), "r" (addr));
}
@ -69,7 +69,7 @@ static inline u16 __raw_readw(const volatile void __iomem *addr)
}
#define __raw_readl __raw_readl
static inline u32 __raw_readl(const volatile void __iomem *addr)
static __always_inline u32 __raw_readl(const volatile void __iomem *addr)
{
u32 val;
asm volatile(ALTERNATIVE("ldr %w0, [%1]",

48
arch/arm64/include/asm/kvm_emulate.h
View File

@ -36,7 +36,7 @@ void kvm_inject_undef32(struct kvm_vcpu *vcpu);
void kvm_inject_dabt32(struct kvm_vcpu *vcpu, unsigned long addr);
void kvm_inject_pabt32(struct kvm_vcpu *vcpu, unsigned long addr);
static inline bool vcpu_el1_is_32bit(struct kvm_vcpu *vcpu)
static __always_inline bool vcpu_el1_is_32bit(struct kvm_vcpu *vcpu)
{
return !(vcpu->arch.hcr_el2 & HCR_RW);
}
@ -127,7 +127,7 @@ static inline void vcpu_set_vsesr(struct kvm_vcpu *vcpu, u64 vsesr)
vcpu->arch.vsesr_el2 = vsesr;
}
static inline unsigned long *vcpu_pc(const struct kvm_vcpu *vcpu)
static __always_inline unsigned long *vcpu_pc(const struct kvm_vcpu *vcpu)
{
return (unsigned long *)&vcpu_gp_regs(vcpu)->regs.pc;
}
@ -153,17 +153,17 @@ static inline void vcpu_write_elr_el1(const struct kvm_vcpu *vcpu, unsigned long
*__vcpu_elr_el1(vcpu) = v;
}
static inline unsigned long *vcpu_cpsr(const struct kvm_vcpu *vcpu)
static __always_inline unsigned long *vcpu_cpsr(const struct kvm_vcpu *vcpu)
{
return (unsigned long *)&vcpu_gp_regs(vcpu)->regs.pstate;
}
static inline bool vcpu_mode_is_32bit(const struct kvm_vcpu *vcpu)
static __always_inline bool vcpu_mode_is_32bit(const struct kvm_vcpu *vcpu)
{
return !!(*vcpu_cpsr(vcpu) & PSR_MODE32_BIT);
}
static inline bool kvm_condition_valid(const struct kvm_vcpu *vcpu)
static __always_inline bool kvm_condition_valid(const struct kvm_vcpu *vcpu)
{
if (vcpu_mode_is_32bit(vcpu))
return kvm_condition_valid32(vcpu);
@ -181,13 +181,13 @@ static inline void vcpu_set_thumb(struct kvm_vcpu *vcpu)
* coming from a read of ESR_EL2. Otherwise, it may give the wrong result on
* AArch32 with banked registers.
*/
static inline unsigned long vcpu_get_reg(const struct kvm_vcpu *vcpu,
static __always_inline unsigned long vcpu_get_reg(const struct kvm_vcpu *vcpu,
u8 reg_num)
{
return (reg_num == 31) ? 0 : vcpu_gp_regs(vcpu)->regs.regs[reg_num];
}
static inline void vcpu_set_reg(struct kvm_vcpu *vcpu, u8 reg_num,
static __always_inline void vcpu_set_reg(struct kvm_vcpu *vcpu, u8 reg_num,
unsigned long val)
{
if (reg_num != 31)
@ -264,12 +264,12 @@ static inline bool vcpu_mode_priv(const struct kvm_vcpu *vcpu)
return mode != PSR_MODE_EL0t;
}
static inline u32 kvm_vcpu_get_hsr(const struct kvm_vcpu *vcpu)
static __always_inline u32 kvm_vcpu_get_hsr(const struct kvm_vcpu *vcpu)
{
return vcpu->arch.fault.esr_el2;
}
static inline int kvm_vcpu_get_condition(const struct kvm_vcpu *vcpu)
static __always_inline int kvm_vcpu_get_condition(const struct kvm_vcpu *vcpu)
{
u32 esr = kvm_vcpu_get_hsr(vcpu);
@ -279,12 +279,12 @@ static inline int kvm_vcpu_get_condition(const struct kvm_vcpu *vcpu)
return -1;
}
static inline unsigned long kvm_vcpu_get_hfar(const struct kvm_vcpu *vcpu)
static __always_inline unsigned long kvm_vcpu_get_hfar(const struct kvm_vcpu *vcpu)
{
return vcpu->arch.fault.far_el2;
}
static inline phys_addr_t kvm_vcpu_get_fault_ipa(const struct kvm_vcpu *vcpu)
static __always_inline phys_addr_t kvm_vcpu_get_fault_ipa(const struct kvm_vcpu *vcpu)
{
return ((phys_addr_t)vcpu->arch.fault.hpfar_el2 & HPFAR_MASK) << 8;
}
@ -299,7 +299,7 @@ static inline u32 kvm_vcpu_hvc_get_imm(const struct kvm_vcpu *vcpu)
return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_xVC_IMM_MASK;
}
static inline bool kvm_vcpu_dabt_isvalid(const struct kvm_vcpu *vcpu)
static __always_inline bool kvm_vcpu_dabt_isvalid(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_ISV);
}
@ -319,17 +319,17 @@ static inline bool kvm_vcpu_dabt_issf(const struct kvm_vcpu *vcpu)
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SF);
}
static inline int kvm_vcpu_dabt_get_rd(const struct kvm_vcpu *vcpu)
static __always_inline int kvm_vcpu_dabt_get_rd(const struct kvm_vcpu *vcpu)
{
return (kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
}
static inline bool kvm_vcpu_dabt_iss1tw(const struct kvm_vcpu *vcpu)
static __always_inline bool kvm_vcpu_dabt_iss1tw(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_S1PTW);
}
static inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
static __always_inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR) ||
kvm_vcpu_dabt_iss1tw(vcpu); /* AF/DBM update */
@ -340,18 +340,18 @@ static inline bool kvm_vcpu_dabt_is_cm(const struct kvm_vcpu *vcpu)
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_CM);
}
static inline unsigned int kvm_vcpu_dabt_get_as(const struct kvm_vcpu *vcpu)
static __always_inline unsigned int kvm_vcpu_dabt_get_as(const struct kvm_vcpu *vcpu)
{
return 1 << ((kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT);
}
/* This one is not specific to Data Abort */
static inline bool kvm_vcpu_trap_il_is32bit(const struct kvm_vcpu *vcpu)
static __always_inline bool kvm_vcpu_trap_il_is32bit(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_IL);
}
static inline u8 kvm_vcpu_trap_get_class(const struct kvm_vcpu *vcpu)
static __always_inline u8 kvm_vcpu_trap_get_class(const struct kvm_vcpu *vcpu)
{
return ESR_ELx_EC(kvm_vcpu_get_hsr(vcpu));
}
@ -361,17 +361,17 @@ static inline bool kvm_vcpu_trap_is_iabt(const struct kvm_vcpu *vcpu)
return kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_IABT_LOW;
}
static inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu)
static __always_inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu)
{
return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC;
}
static inline u8 kvm_vcpu_trap_get_fault_type(const struct kvm_vcpu *vcpu)
static __always_inline u8 kvm_vcpu_trap_get_fault_type(const struct kvm_vcpu *vcpu)
{
return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC_TYPE;
}
static inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
static __always_inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
{
switch (kvm_vcpu_trap_get_fault(vcpu)) {
case FSC_SEA:
@ -390,7 +390,7 @@ static inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
}
}
static inline int kvm_vcpu_sys_get_rt(struct kvm_vcpu *vcpu)
static __always_inline int kvm_vcpu_sys_get_rt(struct kvm_vcpu *vcpu)
{
u32 esr = kvm_vcpu_get_hsr(vcpu);
return ESR_ELx_SYS64_ISS_RT(esr);
@ -504,7 +504,7 @@ static inline unsigned long vcpu_data_host_to_guest(struct kvm_vcpu *vcpu,
return data; /* Leave LE untouched */
}
static inline void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr)
static __always_inline void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr)
{
if (vcpu_mode_is_32bit(vcpu))
kvm_skip_instr32(vcpu, is_wide_instr);
@ -519,7 +519,7 @@ static inline void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr)
* Skip an instruction which has been emulated at hyp while most guest sysregs
* are live.
*/
static inline void __hyp_text __kvm_skip_instr(struct kvm_vcpu *vcpu)
static __always_inline void __hyp_text __kvm_skip_instr(struct kvm_vcpu *vcpu)
{
*vcpu_pc(vcpu) = read_sysreg_el2(SYS_ELR);
vcpu->arch.ctxt.gp_regs.regs.pstate = read_sysreg_el2(SYS_SPSR);

32
arch/arm64/include/asm/kvm_host.h
View File

@ -626,38 +626,6 @@ static inline void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr) {}
static inline void kvm_clr_pmu_events(u32 clr) {}
#endif
static inline void kvm_arm_vhe_guest_enter(void)
{
local_daif_mask();
/*
* Having IRQs masked via PMR when entering the guest means the GIC
* will not signal the CPU of interrupts of lower priority, and the
* only way to get out will be via guest exceptions.
* Naturally, we want to avoid this.
*
* local_daif_mask() already sets GIC_PRIO_PSR_I_SET, we just need a
* dsb to ensure the redistributor is forwards EL2 IRQs to the CPU.
*/
pmr_sync();
}
static inline void kvm_arm_vhe_guest_exit(void)
{
/*
* local_daif_restore() takes care to properly restore PSTATE.DAIF
* and the GIC PMR if the host is using IRQ priorities.
*/
local_daif_restore(DAIF_PROCCTX_NOIRQ);
/*
* When we exit from the guest we change a number of CPU configuration
* parameters, such as traps. Make sure these changes take effect
* before running the host or additional guests.
*/
isb();
}
#define KVM_BP_HARDEN_UNKNOWN -1
#define KVM_BP_HARDEN_WA_NEEDED 0
#define KVM_BP_HARDEN_NOT_REQUIRED 1

7
arch/arm64/include/asm/kvm_hyp.h
View File

@ -47,6 +47,13 @@
#define read_sysreg_el2(r) read_sysreg_elx(r, _EL2, _EL1)
#define write_sysreg_el2(v,r) write_sysreg_elx(v, r, _EL2, _EL1)
/*
* Without an __arch_swab32(), we fall back to ___constant_swab32(), but the
* static inline can allow the compiler to out-of-line this. KVM always wants
* the macro version as its always inlined.
*/
#define __kvm_swab32(x) ___constant_swab32(x)
int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu);
void __vgic_v3_save_state(struct kvm_vcpu *vcpu);

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

@ -93,7 +93,7 @@ void kvm_update_va_mask(struct alt_instr *alt,
__le32 *origptr, __le32 *updptr, int nr_inst);
void kvm_compute_layout(void);
static inline unsigned long __kern_hyp_va(unsigned long v)
static __always_inline unsigned long __kern_hyp_va(unsigned long v)
{
asm volatile(ALTERNATIVE_CB("and %0, %0, #1\n"
"ror %0, %0, #1\n"
@ -473,6 +473,7 @@ static inline int kvm_write_guest_lock(struct kvm *kvm, gpa_t gpa,
extern void *__kvm_bp_vect_base;
extern int __kvm_harden_el2_vector_slot;
/* This is only called on a VHE system */
static inline void *kvm_get_hyp_vector(void)
{
struct bp_hardening_data *data = arm64_get_bp_hardening_data();

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

@ -83,7 +83,7 @@ static inline bool is_kernel_in_hyp_mode(void)
return read_sysreg(CurrentEL) == CurrentEL_EL2;
}
static inline bool has_vhe(void)
static __always_inline bool has_vhe(void)
{
if (cpus_have_const_cap(ARM64_HAS_VIRT_HOST_EXTN))
return true;

39
arch/arm64/kvm/hyp/switch.c
View File

@ -625,7 +625,7 @@ static void __hyp_text __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
}
/* Switch to the guest for VHE systems running in EL2 */
int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
static int __kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
{
struct kvm_cpu_context *host_ctxt;
struct kvm_cpu_context *guest_ctxt;
@ -678,7 +678,42 @@ int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
return exit_code;
}
NOKPROBE_SYMBOL(kvm_vcpu_run_vhe);
NOKPROBE_SYMBOL(__kvm_vcpu_run_vhe);
int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
{
int ret;
local_daif_mask();
/*
* Having IRQs masked via PMR when entering the guest means the GIC
* will not signal the CPU of interrupts of lower priority, and the
* only way to get out will be via guest exceptions.
* Naturally, we want to avoid this.
*
* local_daif_mask() already sets GIC_PRIO_PSR_I_SET, we just need a
* dsb to ensure the redistributor is forwards EL2 IRQs to the CPU.
*/
pmr_sync();
ret = __kvm_vcpu_run_vhe(vcpu);
/*
* local_daif_restore() takes care to properly restore PSTATE.DAIF
* and the GIC PMR if the host is using IRQ priorities.
*/
local_daif_restore(DAIF_PROCCTX_NOIRQ);
/*
* When we exit from the guest we change a number of CPU configuration
* parameters, such as traps. Make sure these changes take effect
* before running the host or additional guests.
*/
isb();
return ret;
}
/* Switch to the guest for legacy non-VHE systems */
int __hyp_text __kvm_vcpu_run_nvhe(struct kvm_vcpu *vcpu)

4
arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c
View File

@ -69,14 +69,14 @@ int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu)
u32 data = vcpu_get_reg(vcpu, rd);
if (__is_be(vcpu)) {
/* guest pre-swabbed data, undo this for writel() */
data = swab32(data);
data = __kvm_swab32(data);
}
writel_relaxed(data, addr);
} else {
u32 data = readl_relaxed(addr);
if (__is_be(vcpu)) {
/* guest expects swabbed data */
data = swab32(data);
data = __kvm_swab32(data);
}
vcpu_set_reg(vcpu, rd, data);
}

20
arch/arm64/mm/context.c
View File

@ -260,14 +260,26 @@ asmlinkage void post_ttbr_update_workaround(void)
CONFIG_CAVIUM_ERRATUM_27456));
}
static int asids_init(void)
static int asids_update_limit(void)
{
asid_bits = get_cpu_asid_bits();
unsigned long num_available_asids = NUM_USER_ASIDS;
if (arm64_kernel_unmapped_at_el0())
num_available_asids /= 2;
/*
* Expect allocation after rollover to fail if we don't have at least
* one more ASID than CPUs. ASID #0 is reserved for init_mm.
*/
WARN_ON(NUM_USER_ASIDS - 1 <= num_possible_cpus());
WARN_ON(num_available_asids - 1 <= num_possible_cpus());
pr_info("ASID allocator initialised with %lu entries\n",
num_available_asids);
return 0;
}
arch_initcall(asids_update_limit);
static int asids_init(void)
{
asid_bits = get_cpu_asid_bits();
atomic64_set(&asid_generation, ASID_FIRST_VERSION);
asid_map = kcalloc(BITS_TO_LONGS(NUM_USER_ASIDS), sizeof(*asid_map),
GFP_KERNEL);
@ -282,8 +294,6 @@ static int asids_init(void)
*/
if (IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0))
set_kpti_asid_bits();
pr_info("ASID allocator initialised with %lu entries\n", NUM_USER_ASIDS);
return 0;
}
early_initcall(asids_init);

4
arch/powerpc/kernel/cputable.c
View File

@ -2193,11 +2193,13 @@ static struct cpu_spec * __init setup_cpu_spec(unsigned long offset,
* oprofile_cpu_type already has a value, then we are
* possibly overriding a real PVR with a logical one,
* and, in that case, keep the current value for
* oprofile_cpu_type.
* oprofile_cpu_type. Futhermore, let's ensure that the
* fix for the PMAO bug is enabled on compatibility mode.
*/
if (old.oprofile_cpu_type != NULL) {
t->oprofile_cpu_type = old.oprofile_cpu_type;
t->oprofile_type = old.oprofile_type;
t->cpu_features |= old.cpu_features & CPU_FTR_PMAO_BUG;
}
}

12
arch/powerpc/kernel/hw_breakpoint.c
View File

@ -331,11 +331,13 @@ int hw_breakpoint_handler(struct die_args *args)
}
info->type &= ~HW_BRK_TYPE_EXTRANEOUS_IRQ;
if (!dar_within_range(regs->dar, info))
info->type |= HW_BRK_TYPE_EXTRANEOUS_IRQ;
if (!IS_ENABLED(CONFIG_PPC_8xx) && !stepping_handler(regs, bp, info))
goto out;
if (IS_ENABLED(CONFIG_PPC_8xx)) {
if (!dar_within_range(regs->dar, info))
info->type |= HW_BRK_TYPE_EXTRANEOUS_IRQ;
} else {
if (!stepping_handler(regs, bp, info))
goto out;
}
/*
* As a policy, the callback is invoked in a 'trigger-after-execute'

6
arch/powerpc/kernel/vmlinux.lds.S
View File

@ -303,6 +303,12 @@ SECTIONS
*(.branch_lt)
}
#ifdef CONFIG_DEBUG_INFO_BTF
.BTF : AT(ADDR(.BTF) - LOAD_OFFSET) {
*(.BTF)
}
#endif
.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
__start_opd = .;
KEEP(*(.opd))

2
arch/powerpc/mm/mem.c
View File

@ -373,7 +373,9 @@ static inline bool flush_coherent_icache(unsigned long addr)
*/
if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) {
mb(); /* sync */
allow_read_from_user((const void __user *)addr, L1_CACHE_BYTES);
icbi((void *)addr);
prevent_read_from_user((const void __user *)addr, L1_CACHE_BYTES);
mb(); /* sync */
isync();
return true;

1
arch/riscv/Kconfig
View File

@ -121,6 +121,7 @@ config ARCH_FLATMEM_ENABLE
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on MMU
select SPARSEMEM_VMEMMAP_ENABLE
config ARCH_SELECT_MEMORY_MODEL

24
arch/riscv/Kconfig.socs
View File

@ -10,4 +10,28 @@ config SOC_SIFIVE
help
This enables support for SiFive SoC platform hardware.
config SOC_VIRT
bool "QEMU Virt Machine"
select VIRTIO_PCI
select VIRTIO_BALLOON
select VIRTIO_MMIO
select VIRTIO_CONSOLE
select VIRTIO_NET
select NET_9P_VIRTIO
select VIRTIO_BLK
select SCSI_VIRTIO
select DRM_VIRTIO_GPU
select HW_RANDOM_VIRTIO
select RPMSG_CHAR
select RPMSG_VIRTIO
select CRYPTO_DEV_VIRTIO
select VIRTIO_INPUT
select POWER_RESET_SYSCON
select POWER_RESET_SYSCON_POWEROFF
select GOLDFISH
select RTC_DRV_GOLDFISH
select SIFIVE_PLIC
help
This enables support for QEMU Virt Machine.
endmenu

6
arch/riscv/Makefile
View File

@ -13,8 +13,10 @@ LDFLAGS_vmlinux :=
ifeq ($(CONFIG_DYNAMIC_FTRACE),y)
LDFLAGS_vmlinux := --no-relax
endif
KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC
ifeq ($(CONFIG_64BIT)$(CONFIG_CMODEL_MEDLOW),yy)
KBUILD_CFLAGS_MODULE += -mcmodel=medany
endif
export BITS
ifeq ($(CONFIG_ARCH_RV64I),y)

5
arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
View File

@ -2,6 +2,7 @@
/* Copyright (c) 2018-2019 SiFive, Inc */
#include "fu540-c000.dtsi"
#include <dt-bindings/gpio/gpio.h>
/* Clock frequency (in Hz) of the PCB crystal for rtcclk */
#define RTCCLK_FREQ 1000000
@ -41,6 +42,10 @@
clock-frequency = <RTCCLK_FREQ>;
clock-output-names = "rtcclk";
};
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
};
};
&uart0 {

17
arch/riscv/configs/defconfig
View File

@ -15,6 +15,7 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_BPF_SYSCALL=y
CONFIG_SOC_SIFIVE=y
CONFIG_SOC_VIRT=y
CONFIG_SMP=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@ -30,7 +31,6 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NETLINK_DIAG=y
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_PCI=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCI_HOST_GENERIC=y
@ -38,15 +38,12 @@ CONFIG_PCIE_XILINX=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_VIRTIO_BLK=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_SCSI_VIRTIO=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_VIRTIO_NET=y
CONFIG_MACB=y
CONFIG_E1000E=y
CONFIG_R8169=y
@ -57,15 +54,13 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
CONFIG_HVC_RISCV_SBI=y
CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_SPI=y
CONFIG_SPI_SIFIVE=y
# CONFIG_PTP_1588_CLOCK is not set
CONFIG_POWER_RESET=y
CONFIG_DRM=y
CONFIG_DRM_RADEON=y
CONFIG_DRM_VIRTIO_GPU=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_USB=y
CONFIG_USB_XHCI_HCD=y
@ -78,12 +73,7 @@ CONFIG_USB_STORAGE=y
CONFIG_USB_UAS=y
CONFIG_MMC=y
CONFIG_MMC_SPI=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_INPUT=y
CONFIG_VIRTIO_MMIO=y
CONFIG_RPMSG_CHAR=y
CONFIG_RPMSG_VIRTIO=y
CONFIG_RTC_CLASS=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_AUTOFS4_FS=y
@ -98,7 +88,6 @@ CONFIG_NFS_V4_2=y
CONFIG_ROOT_NFS=y
CONFIG_9P_FS=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_DEV_VIRTIO=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_PAGEALLOC=y

18
arch/riscv/configs/rv32_defconfig
View File

@ -14,6 +14,7 @@ CONFIG_CHECKPOINT_RESTORE=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_BPF_SYSCALL=y
CONFIG_SOC_VIRT=y
CONFIG_ARCH_RV32I=y
CONFIG_SMP=y
CONFIG_MODULES=y
@ -30,7 +31,6 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NETLINK_DIAG=y
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_PCI=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCI_HOST_GENERIC=y
@ -38,15 +38,12 @@ CONFIG_PCIE_XILINX=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_VIRTIO_BLK=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_SCSI_VIRTIO=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_VIRTIO_NET=y
CONFIG_MACB=y
CONFIG_E1000E=y
CONFIG_R8169=y
@ -57,13 +54,11 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
CONFIG_HVC_RISCV_SBI=y
CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_PTP_1588_CLOCK is not set
CONFIG_POWER_RESET=y
CONFIG_DRM=y
CONFIG_DRM_RADEON=y
CONFIG_DRM_VIRTIO_GPU=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_USB=y
CONFIG_USB_XHCI_HCD=y
@ -74,13 +69,7 @@ CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PLATFORM=y
CONFIG_USB_STORAGE=y
CONFIG_USB_UAS=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_INPUT=y
CONFIG_VIRTIO_MMIO=y
CONFIG_RPMSG_CHAR=y
CONFIG_RPMSG_VIRTIO=y
CONFIG_SIFIVE_PLIC=y
CONFIG_RTC_CLASS=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_AUTOFS4_FS=y
@ -95,7 +84,6 @@ CONFIG_NFS_V4_2=y
CONFIG_ROOT_NFS=y
CONFIG_9P_FS=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_DEV_VIRTIO=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_PAGEALLOC=y

7
arch/riscv/include/asm/syscall.h
View File

@ -28,13 +28,6 @@ static inline int syscall_get_nr(struct task_struct *task,
return regs->a7;
}
static inline void syscall_set_nr(struct task_struct *task,
struct pt_regs *regs,
int sysno)
{
regs->a7 = sysno;
}
static inline void syscall_rollback(struct task_struct *task,
struct pt_regs *regs)
{

11
arch/riscv/kernel/entry.S
View File

@ -228,20 +228,13 @@ check_syscall_nr:
/* Check to make sure we don't jump to a bogus syscall number. */
li t0, __NR_syscalls
la s0, sys_ni_syscall
/*
* The tracer can change syscall number to valid/invalid value.
* We use syscall_set_nr helper in syscall_trace_enter thus we
* cannot trust the current value in a7 and have to reload from
* the current task pt_regs.
*/
REG_L a7, PT_A7(sp)
/*
* Syscall number held in a7.
* If syscall number is above allowed value, redirect to ni_syscall.
*/
bge a7, t0, 1f
/*
* Check if syscall is rejected by tracer or seccomp, i.e., a7 == -1.
* Check if syscall is rejected by tracer, i.e., a7 == -1.
* If yes, we pretend it was executed.
*/
li t1, -1
@ -334,6 +327,7 @@ work_resched:
handle_syscall_trace_enter:
move a0, sp
call do_syscall_trace_enter
move t0, a0
REG_L a0, PT_A0(sp)
REG_L a1, PT_A1(sp)
REG_L a2, PT_A2(sp)
@ -342,6 +336,7 @@ handle_syscall_trace_enter:
REG_L a5, PT_A5(sp)
REG_L a6, PT_A6(sp)
REG_L a7, PT_A7(sp)
bnez t0, ret_from_syscall_rejected
j check_syscall_nr
handle_syscall_trace_exit:
move a0, sp

16
arch/riscv/kernel/module.c
View File

@ -8,6 +8,10 @@
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/moduleloader.h>
#include <linux/vmalloc.h>
#include <linux/sizes.h>
#include <asm/pgtable.h>
#include <asm/sections.h>
static int apply_r_riscv_32_rela(struct module *me, u32 *location, Elf_Addr v)
{
@ -386,3 +390,15 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
return 0;
}
#if defined(CONFIG_MMU) && defined(CONFIG_64BIT)
#define VMALLOC_MODULE_START \
max(PFN_ALIGN((unsigned long)&_end - SZ_2G), VMALLOC_START)
void *module_alloc(unsigned long size)
{
return __vmalloc_node_range(size, 1, VMALLOC_MODULE_START,
VMALLOC_END, GFP_KERNEL,
PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
__builtin_return_address(0));
}
#endif

11
arch/riscv/kernel/ptrace.c
View File

@ -148,21 +148,19 @@ long arch_ptrace(struct task_struct *child, long request,
* Allows PTRACE_SYSCALL to work. These are called from entry.S in
* {handle,ret_from}_syscall.
*/
__visible void do_syscall_trace_enter(struct pt_regs *regs)
__visible int do_syscall_trace_enter(struct pt_regs *regs)
{
if (test_thread_flag(TIF_SYSCALL_TRACE))
if (tracehook_report_syscall_entry(regs))
syscall_set_nr(current, regs, -1);
return -1;
/*
* Do the secure computing after ptrace; failures should be fast.
* If this fails we might have return value in a0 from seccomp
* (via SECCOMP_RET_ERRNO/TRACE).
*/
if (secure_computing() == -1) {
syscall_set_nr(current, regs, -1);
return;
}
if (secure_computing() == -1)
return -1;
#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
@ -170,6 +168,7 @@ __visible void do_syscall_trace_enter(struct pt_regs *regs)
#endif
audit_syscall_entry(regs->a7, regs->a0, regs->a1, regs->a2, regs->a3);
return 0;
}
__visible void do_syscall_trace_exit(struct pt_regs *regs)

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