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Merge d20f7a09e5 ("Merge tag 'gpio-updates-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux") into android-mainline

Browse Source 
Steps on the way to 5.16-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If2a3e7d45adbcb4ea0c3d52127d315638591b3d5
This commit is contained in:
Greg Kroah-Hartman
2021-11-15 18:25:40 +01:00
parent baabe599de d20f7a09e5
commit 205b00fd30
671 changed files with 19484 additions and 8260 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/ABI/testing/sysfs-bus-pci
+11
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@@ -100,6 +100,17 @@ Description:
This attribute indicates the mode that the irq vector named by
the file is in (msi vs. msix)
What: /sys/bus/pci/devices/.../irq
Date: August 2021
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
Description:
If a driver has enabled MSI (not MSI-X), "irq" contains the
IRQ of the first MSI vector. Otherwise "irq" contains the
IRQ of the legacy INTx interrupt.
"irq" being set to 0 indicates that the device isn't
capable of generating legacy INTx interrupts.
What: /sys/bus/pci/devices/.../remove
Date: January 2009
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
Documentation/admin-guide/filesystem-monitoring.rst
+78
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@@ -0,0 +1,78 @@
.. SPDX-License-Identifier: GPL-2.0
====================================
File system Monitoring with fanotify
====================================
File system Error Reporting
===========================
Fanotify supports the FAN_FS_ERROR event type for file system-wide error
reporting. It is meant to be used by file system health monitoring
daemons, which listen for these events and take actions (notify
sysadmin, start recovery) when a file system problem is detected.
By design, a FAN_FS_ERROR notification exposes sufficient information
for a monitoring tool to know a problem in the file system has happened.
It doesn't necessarily provide a user space application with semantics
to verify an IO operation was successfully executed. That is out of
scope for this feature. Instead, it is only meant as a framework for
early file system problem detection and reporting recovery tools.
When a file system operation fails, it is common for dozens of kernel
errors to cascade after the initial failure, hiding the original failure
log, which is usually the most useful debug data to troubleshoot the
problem. For this reason, FAN_FS_ERROR tries to report only the first
error that occurred for a file system since the last notification, and
it simply counts additional errors. This ensures that the most
important pieces of information are never lost.
FAN_FS_ERROR requires the fanotify group to be setup with the
FAN_REPORT_FID flag.
At the time of this writing, the only file system that emits FAN_FS_ERROR
notifications is Ext4.
A FAN_FS_ERROR Notification has the following format::
::
[ Notification Metadata (Mandatory) ]
[ Generic Error Record (Mandatory) ]
[ FID record (Mandatory) ]
The order of records is not guaranteed, and new records might be added
in the future. Therefore, applications must not rely on the order and
must be prepared to skip over unknown records. Please refer to
``samples/fanotify/fs-monitor.c`` for an example parser.
Generic error record
--------------------
The generic error record provides enough information for a file system
agnostic tool to learn about a problem in the file system, without
providing any additional details about the problem. This record is
identified by ``struct fanotify_event_info_header.info_type`` being set
to FAN_EVENT_INFO_TYPE_ERROR.
::
struct fanotify_event_info_error {
struct fanotify_event_info_header hdr;
__s32 error;
__u32 error_count;
};
The `error` field identifies the type of error using errno values.
`error_count` tracks the number of errors that occurred and were
suppressed to preserve the original error information, since the last
notification.
FID record
----------
The FID record can be used to uniquely identify the inode that triggered
the error through the combination of fsid and file handle. A file system
specific application can use that information to attempt a recovery
procedure. Errors that are not related to an inode are reported with an
empty file handle of type FILEID_INVALID.
Documentation/admin-guide/index.rst
+1
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@@ -82,6 +82,7 @@ configure specific aspects of kernel behavior to your liking.
edid
efi-stub
ext4
filesystem-monitoring
nfs/index
gpio/index
highuid
Documentation/admin-guide/kernel-parameters.txt
+12
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@@ -4996,6 +4996,18 @@
an IOTLB flush. Default is lazy flushing before reuse,
which is faster.
s390_iommu_aperture= [KNL,S390]
Specifies the size of the per device DMA address space
accessible through the DMA and IOMMU APIs as a decimal
factor of the size of main memory.
The default is 1 meaning that one can concurrently use
as many DMA addresses as physical memory is installed,
if supported by hardware, and thus map all of memory
once. With a value of 2 one can map all of memory twice
and so on. As a special case a factor of 0 imposes no
restrictions other than those given by hardware at the
cost of significant additional memory use for tables.
sa1100ir [NET]
See drivers/net/irda/sa1100_ir.c.
Documentation/devicetree/bindings/auxdisplay/holtek,ht16k33.yaml
+29 -3
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@@ -14,14 +14,21 @@ allOf:
properties:
compatible:
const: holtek,ht16k33
oneOf:
- items:
- enum:
- adafruit,3108 # 0.56" 4-Digit 7-Segment FeatherWing Display (Red)
- adafruit,3130 # 0.54" Quad Alphanumeric FeatherWing Display (Red)
- const: holtek,ht16k33
- const: holtek,ht16k33 # Generic 16*8 LED controller with dot-matrix display
reg:
maxItems: 1
refresh-rate-hz:
maxItems: 1
description: Display update interval in Hertz
description: Display update interval in Hertz for dot-matrix displays
interrupts:
maxItems: 1
@@ -41,10 +48,22 @@ properties:
default: 16
description: Initial brightness level
led:
type: object
$ref: /schemas/leds/common.yaml#
unevaluatedProperties: false
required:
- compatible
- reg
- refresh-rate-hz
if:
properties:
compatible:
const: holtek,ht16k33
then:
required:
- refresh-rate-hz
additionalProperties: false
@@ -52,6 +71,7 @@ examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
i2c1 {
#address-cells = <1>;
#size-cells = <0>;
@@ -73,5 +93,11 @@ examples:
<MATRIX_KEY(4, 1, KEY_F9)>,
<MATRIX_KEY(5, 1, KEY_F3)>,
<MATRIX_KEY(6, 1, KEY_F1)>;
led {
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_BACKLIGHT;
linux,default-trigger = "backlight";
};
};
};
Documentation/devicetree/bindings/eeprom/at24.yaml
+6
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@@ -97,6 +97,12 @@ properties:
- items:
- const: nxp,se97b
- const: atmel,24c02
- items:
- const: onnn,cat24c04
- const: atmel,24c04
- items:
- const: onnn,cat24c05
- const: atmel,24c04
- items:
- const: renesas,r1ex24002
- const: atmel,24c02
Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
+2
View File
@@ -29,6 +29,8 @@ properties:
gpio-controller: true
gpio-line-names: true
"#gpio-cells":
const: 2
Documentation/devicetree/bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml
+43
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@@ -0,0 +1,43 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/gpio/xlnx,zynqmp-gpio-modepin.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: ZynqMP Mode Pin GPIO controller
description:
PS_MODE is 4-bits boot mode pins sampled on POR deassertion. Mode Pin
GPIO controller with configurable from numbers of pins (from 0 to 3 per
PS_MODE). Every pin can be configured as input/output.
maintainers:
- Piyush Mehta <piyush.mehta@xilinx.com>
properties:
compatible:
const: xlnx,zynqmp-gpio-modepin
gpio-controller: true
"#gpio-cells":
const: 2
required:
- compatible
- gpio-controller
- "#gpio-cells"
additionalProperties: false
examples:
- |
zynqmp-firmware {
gpio {
compatible = "xlnx,zynqmp-gpio-modepin";
gpio-controller;
#gpio-cells = <2>;
};
};
...
Documentation/devicetree/bindings/i2c/apple,i2c.yaml
+61
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@@ -0,0 +1,61 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/i2c/apple,i2c.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Apple/PASemi I2C controller
maintainers:
- Sven Peter <sven@svenpeter.dev>
description: |
Apple SoCs such as the M1 come with a I2C controller based on the one found
in machines with P. A. Semi's PWRficient processors.
The bus is used to communicate with e.g. USB PD chips or the speaker
amp.
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
properties:
compatible:
enum:
- apple,t8103-i2c
- apple,i2c
reg:
maxItems: 1
clocks:
items:
- description: I2C bus reference clock
interrupts:
maxItems: 1
clock-frequency:
description: |
Desired I2C bus clock frequency in Hz. If not specified, 100 kHz will be
used. This frequency is generated by dividing the reference clock.
Allowed values are between ref_clk/(16*4) and ref_clk/(16*255).
required:
- compatible
- reg
- clocks
- interrupts
unevaluatedProperties: false
examples:
- |
i2c@35010000 {
compatible = "apple,t8103-i2c";
reg = <0x35010000 0x4000>;
interrupt-parent = <&aic>;
interrupts = <0 627 4>;
clocks = <&ref_clk>;
#address-cells = <1>;
#size-cells = <0>;
};
Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml
+142
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@@ -0,0 +1,142 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/mediatek,mt7621-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek MT7621 PCIe controller
maintainers:
- Sergio Paracuellos <sergio.paracuellos@gmail.com>
description: |+
MediaTek MT7621 PCIe subsys supports a single Root Complex (RC)
with 3 Root Ports. Each Root Port supports a Gen1 1-lane Link
allOf:
- $ref: /schemas/pci/pci-bus.yaml#
properties:
compatible:
const: mediatek,mt7621-pci
reg:
items:
- description: host-pci bridge registers
- description: pcie port 0 RC control registers
- description: pcie port 1 RC control registers
- description: pcie port 2 RC control registers
ranges:
maxItems: 2
patternProperties:
'pcie@[0-2],0':
type: object
$ref: /schemas/pci/pci-bus.yaml#
properties:
resets:
maxItems: 1
clocks:
maxItems: 1
phys:
maxItems: 1
required:
- "#interrupt-cells"
- interrupt-map-mask
- interrupt-map
- resets
- clocks
- phys
- phy-names
- ranges
unevaluatedProperties: false
required:
- compatible
- reg
- ranges
- "#interrupt-cells"
- interrupt-map-mask
- interrupt-map
- reset-gpios
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/mips-gic.h>
pcie: pcie@1e140000 {
compatible = "mediatek,mt7621-pci";
reg = <0x1e140000 0x100>,
<0x1e142000 0x100>,
<0x1e143000 0x100>,
<0x1e144000 0x100>;
#address-cells = <3>;
#size-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&pcie_pins>;
device_type = "pci";
ranges = <0x02000000 0 0x60000000 0x60000000 0 0x10000000>, /* pci memory */
<0x01000000 0 0x1e160000 0x1e160000 0 0x00010000>; /* io space */
#interrupt-cells = <1>;
interrupt-map-mask = <0xF800 0 0 0>;
interrupt-map = <0x0000 0 0 0 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>,
<0x0800 0 0 0 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>,
<0x1000 0 0 0 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;
reset-gpios = <&gpio 19 GPIO_ACTIVE_LOW>;
pcie@0,0 {
reg = <0x0000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>;
resets = <&rstctrl 24>;
clocks = <&clkctrl 24>;
phys = <&pcie0_phy 1>;
phy-names = "pcie-phy0";
ranges;
};
pcie@1,0 {
reg = <0x0800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>;
resets = <&rstctrl 25>;
clocks = <&clkctrl 25>;
phys = <&pcie0_phy 1>;
phy-names = "pcie-phy1";
ranges;
};
pcie@2,0 {
reg = <0x1000 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;
resets = <&rstctrl 26>;
clocks = <&clkctrl 26>;
phys = <&pcie2_phy 0>;
phy-names = "pcie-phy2";
ranges;
};
};
...
Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+158
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@@ -0,0 +1,158 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/qcom,pcie-ep.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm PCIe Endpoint Controller binding
maintainers:
- Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
allOf:
- $ref: "pci-ep.yaml#"
properties:
compatible:
const: qcom,sdx55-pcie-ep
reg:
items:
- description: Qualcomm-specific PARF configuration registers
- description: DesignWare PCIe registers
- description: External local bus interface registers
- description: Address Translation Unit (ATU) registers
- description: Memory region used to map remote RC address space
- description: BAR memory region
reg-names:
items:
- const: parf
- const: dbi
- const: elbi
- const: atu
- const: addr_space
- const: mmio
clocks:
items:
- description: PCIe Auxiliary clock
- description: PCIe CFG AHB clock
- description: PCIe Master AXI clock
- description: PCIe Slave AXI clock
- description: PCIe Slave Q2A AXI clock
- description: PCIe Sleep clock
- description: PCIe Reference clock
clock-names:
items:
- const: aux
- const: cfg
- const: bus_master
- const: bus_slave
- const: slave_q2a
- const: sleep
- const: ref
qcom,perst-regs:
description: Reference to a syscon representing TCSR followed by the two
offsets within syscon for Perst enable and Perst separation
enable registers
$ref: "/schemas/types.yaml#/definitions/phandle-array"
items:
minItems: 3
maxItems: 3
interrupts:
items:
- description: PCIe Global interrupt
- description: PCIe Doorbell interrupt
interrupt-names:
items:
- const: global
- const: doorbell
reset-gpios:
description: GPIO used as PERST# input signal
maxItems: 1
wake-gpios:
description: GPIO used as WAKE# output signal
maxItems: 1
resets:
maxItems: 1
reset-names:
const: core
power-domains:
maxItems: 1
phys:
maxItems: 1
phy-names:
const: pciephy
num-lanes:
default: 2
required:
- compatible
- reg
- reg-names
- clocks
- clock-names
- qcom,perst-regs
- interrupts
- interrupt-names
- reset-gpios
- resets
- reset-names
- power-domains
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,gcc-sdx55.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
pcie_ep: pcie-ep@40000000 {
compatible = "qcom,sdx55-pcie-ep";
reg = <0x01c00000 0x3000>,
<0x40000000 0xf1d>,
<0x40000f20 0xc8>,
<0x40001000 0x1000>,
<0x40002000 0x1000>,
<0x01c03000 0x3000>;
reg-names = "parf", "dbi", "elbi", "atu", "addr_space",
"mmio";
clocks = <&gcc GCC_PCIE_AUX_CLK>,
<&gcc GCC_PCIE_CFG_AHB_CLK>,
<&gcc GCC_PCIE_MSTR_AXI_CLK>,
<&gcc GCC_PCIE_SLV_AXI_CLK>,
<&gcc GCC_PCIE_SLV_Q2A_AXI_CLK>,
<&gcc GCC_PCIE_SLEEP_CLK>,
<&gcc GCC_PCIE_0_CLKREF_CLK>;
clock-names = "aux", "cfg", "bus_master", "bus_slave",
"slave_q2a", "sleep", "ref";
qcom,perst-regs = <&tcsr 0xb258 0xb270>;
interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "global", "doorbell";
reset-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
resets = <&gcc GCC_PCIE_BCR>;
reset-names = "core";
power-domains = <&gcc PCIE_GDSC>;
phys = <&pcie0_lane>;
phy-names = "pciephy";
max-link-speed = <3>;
num-lanes = <2>;
};
Documentation/devicetree/bindings/pci/qcom,pcie.txt
+3 -2
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@@ -12,6 +12,7 @@
- "qcom,pcie-ipq4019" for ipq4019
- "qcom,pcie-ipq8074" for ipq8074
- "qcom,pcie-qcs404" for qcs404
- "qcom,pcie-sc8180x" for sc8180x
- "qcom,pcie-sdm845" for sdm845
- "qcom,pcie-sm8250" for sm8250
- "qcom,pcie-ipq6018" for ipq6018
@@ -156,7 +157,7 @@
- "pipe" PIPE clock
- clock-names:
Usage: required for sm8250
Usage: required for sc8180x and sm8250
Value type: <stringlist>
Definition: Should contain the following entries
- "aux" Auxiliary clock
@@ -245,7 +246,7 @@
- "ahb" AHB reset
- reset-names:
Usage: required for sdm845 and sm8250
Usage: required for sc8180x, sdm845 and sm8250
Value type: <stringlist>
Definition: Should contain the following entries
- "pci" PCIe core reset
Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
+141
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@@ -0,0 +1,141 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: DesignWare based PCIe controller on Rockchip SoCs
maintainers:
- Shawn Lin <shawn.lin@rock-chips.com>
- Simon Xue <xxm@rock-chips.com>
- Heiko Stuebner <heiko@sntech.de>
description: |+
RK3568 SoC PCIe host controller is based on the Synopsys DesignWare
PCIe IP and thus inherits all the common properties defined in
designware-pcie.txt.
allOf:
- $ref: /schemas/pci/pci-bus.yaml#
# We need a select here so we don't match all nodes with 'snps,dw-pcie'
select:
properties:
compatible:
contains:
const: rockchip,rk3568-pcie
required:
- compatible
properties:
compatible:
items:
- const: rockchip,rk3568-pcie
- const: snps,dw-pcie
reg:
items:
- description: Data Bus Interface (DBI) registers
- description: Rockchip designed configuration registers
- description: Config registers
reg-names:
items:
- const: dbi
- const: apb
- const: config
clocks:
items:
- description: AHB clock for PCIe master
- description: AHB clock for PCIe slave
- description: AHB clock for PCIe dbi
- description: APB clock for PCIe
- description: Auxiliary clock for PCIe
clock-names:
items:
- const: aclk_mst
- const: aclk_slv
- const: aclk_dbi
- const: pclk
- const: aux
msi-map: true
num-lanes: true
phys:
maxItems: 1
phy-names:
const: pcie-phy
power-domains:
maxItems: 1
ranges:
maxItems: 2
resets:
maxItems: 1
reset-names:
const: pipe
vpcie3v3-supply: true
required:
- compatible
- reg
- reg-names
- clocks
- clock-names
- msi-map
- num-lanes
- phys
- phy-names
- power-domains
- resets
- reset-names
unevaluatedProperties: false
examples:
- |
bus {
#address-cells = <2>;
#size-cells = <2>;
pcie3x2: pcie@fe280000 {
compatible = "rockchip,rk3568-pcie", "snps,dw-pcie";
reg = <0x3 0xc0800000 0x0 0x390000>,
<0x0 0xfe280000 0x0 0x10000>,
<0x3 0x80000000 0x0 0x100000>;
reg-names = "dbi", "apb", "config";
bus-range = <0x20 0x2f>;
clocks = <&cru 143>, <&cru 144>,
<&cru 145>, <&cru 146>,
<&cru 147>;
clock-names = "aclk_mst", "aclk_slv",
"aclk_dbi", "pclk",
"aux";
device_type = "pci";
linux,pci-domain = <2>;
max-link-speed = <2>;
msi-map = <0x2000 &its 0x2000 0x1000>;
num-lanes = <2>;
phys = <&pcie30phy>;
phy-names = "pcie-phy";
power-domains = <&power 15>;
ranges = <0x81000000 0x0 0x80800000 0x3 0x80800000 0x0 0x100000>,
<0x83000000 0x0 0x80900000 0x3 0x80900000 0x0 0x3f700000>;
resets = <&cru 193>;
reset-names = "pipe";
#address-cells = <3>;
#size-cells = <2>;
};
};
...
Documentation/driver-api/cxl/memory-devices.rst
+6
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@@ -39,12 +39,18 @@ CXL Core
.. kernel-doc:: drivers/cxl/core/bus.c
:doc: cxl core
.. kernel-doc:: drivers/cxl/core/bus.c
:identifiers:
.. kernel-doc:: drivers/cxl/core/pmem.c
:doc: cxl pmem
.. kernel-doc:: drivers/cxl/core/regs.c
:doc: cxl registers
.. kernel-doc:: drivers/cxl/core/mbox.c
:doc: cxl mbox
External Interfaces
===================
Documentation/kbuild/makefiles.rst
+2 -15
View File
@@ -1050,22 +1050,9 @@ is not sufficient this sometimes needs to be explicit.
The above assignment instructs kbuild to descend down in the
directory compressed/ when "make clean" is executed.
To support the clean infrastructure in the Makefiles that build the
final bootimage there is an optional target named archclean:
Example::
#arch/x86/Makefile
archclean:
$(Q)$(MAKE) $(clean)=arch/x86/boot
When "make clean" is executed, make will descend down in arch/x86/boot,
and clean as usual. The Makefile located in arch/x86/boot/ may use
the subdir- trick to descend further down.
Note 1: arch/$(SRCARCH)/Makefile cannot use "subdir-", because that file is
included in the top level makefile, and the kbuild infrastructure
is not operational at that point.
included in the top level makefile. Instead, arch/$(SRCARCH)/Kbuild can use
"subdir-".
Note 2: All directories listed in core-y, libs-y, drivers-y and net-y will
be visited during "make clean".
MAINTAINERS
+47 -8
View File
@@ -1297,6 +1297,13 @@ S: Maintained
F: Documentation/devicetree/bindings/iommu/apple,dart.yaml
F: drivers/iommu/apple-dart.c
APPLE PCIE CONTROLLER DRIVER
M: Alyssa Rosenzweig <alyssa@rosenzweig.io>
M: Marc Zyngier <maz@kernel.org>
L: linux-pci@vger.kernel.org
S: Maintained
F: drivers/pci/controller/pcie-apple.c
APPLE SMC DRIVER
M: Henrik Rydberg <rydberg@bitmath.org>
L: linux-hwmon@vger.kernel.org
@@ -3163,6 +3170,7 @@ F: lib/*audit.c
AUXILIARY DISPLAY DRIVERS
M: Miguel Ojeda <ojeda@kernel.org>
S: Maintained
F: Documentation/devicetree/bindings/auxdisplay/
F: drivers/auxdisplay/
F: include/linux/cfag12864b.h
@@ -8816,8 +8824,7 @@ S: Supported
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
C: irc://irc.oftc.net/mtd
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git cfi/next
F: Documentation/devicetree/bindings/mtd/cypress,hyperflash.txt
F: Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
F: Documentation/devicetree/bindings/mtd/ti,am654-hbmc.yaml
F: drivers/mtd/hyperbus/
F: include/linux/mtd/hyperbus.h
@@ -12012,6 +12019,12 @@ S: Maintained
F: Documentation/devicetree/bindings/i2c/i2c-mt7621.txt
F: drivers/i2c/busses/i2c-mt7621.c
MEDIATEK MT7621 PCIE CONTROLLER DRIVER
M: Sergio Paracuellos <sergio.paracuellos@gmail.com>
S: Maintained
F: Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml
F: drivers/pci/controller/pcie-mt7621.c
MEDIATEK MT7621 PHY PCI DRIVER
M: Sergio Paracuellos <sergio.paracuellos@gmail.com>
S: Maintained
@@ -14654,9 +14667,12 @@ M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
R: Krzysztof Wilczyński <kw@linux.com>
L: linux-pci@vger.kernel.org
S: Supported
Q: https://patchwork.kernel.org/project/linux-pci/list/
B: https://bugzilla.kernel.org
C: irc://irc.oftc.net/linux-pci
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git
F: Documentation/PCI/endpoint/*
F: Documentation/misc-devices/pci-endpoint-test.rst
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git
F: drivers/misc/pci_endpoint_test.c
F: drivers/pci/endpoint/
F: tools/pci/
@@ -14702,15 +14718,21 @@ R: Rob Herring <robh@kernel.org>
R: Krzysztof Wilczyński <kw@linux.com>
L: linux-pci@vger.kernel.org
S: Supported
Q: http://patchwork.ozlabs.org/project/linux-pci/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git/
Q: https://patchwork.kernel.org/project/linux-pci/list/
B: https://bugzilla.kernel.org
C: irc://irc.oftc.net/linux-pci
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git
F: drivers/pci/controller/
F: drivers/pci/pci-bridge-emul.c
F: drivers/pci/pci-bridge-emul.h
PCI SUBSYSTEM
M: Bjorn Helgaas <bhelgaas@google.com>
L: linux-pci@vger.kernel.org
S: Supported
Q: http://patchwork.ozlabs.org/project/linux-pci/list/
Q: https://patchwork.kernel.org/project/linux-pci/list/
B: https://bugzilla.kernel.org
C: irc://irc.oftc.net/linux-pci
T: git git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
F: Documentation/PCI/
F: Documentation/devicetree/bindings/pci/
@@ -14810,7 +14832,15 @@ M: Stanimir Varbanov <svarbanov@mm-sol.com>
L: linux-pci@vger.kernel.org
L: linux-arm-msm@vger.kernel.org
S: Maintained
F: drivers/pci/controller/dwc/*qcom*
F: drivers/pci/controller/dwc/pcie-qcom.c
PCIE ENDPOINT DRIVER FOR QUALCOMM
M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
L: linux-pci@vger.kernel.org
L: linux-arm-msm@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
F: drivers/pci/controller/dwc/pcie-qcom-ep.c
PCIE DRIVER FOR ROCKCHIP
M: Shawn Lin <shawn.lin@rock-chips.com>
@@ -15780,6 +15810,14 @@ S: Maintained
F: Documentation/devicetree/bindings/regulator/vqmmc-ipq4019-regulator.yaml
F: drivers/regulator/vqmmc-ipq4019-regulator.c
QUALCOMM NAND CONTROLLER DRIVER
M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
L: linux-mtd@lists.infradead.org
L: linux-arm-msm@vger.kernel.org
S: Maintained
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>
@@ -17879,6 +17917,7 @@ W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
C: irc://irc.oftc.net/mtd
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git spi-nor/next
F: Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
F: drivers/mtd/spi-nor/
F: include/linux/mtd/spi-nor.h
@@ -20157,7 +20196,7 @@ F: include/uapi/linux/virtio_snd.h
F: sound/virtio/*
VIRTIO I2C DRIVER
M: Jie Deng <jie.deng@intel.com>
M: Conghui Chen <conghui.chen@intel.com>
M: Viresh Kumar <viresh.kumar@linaro.org>
L: linux-i2c@vger.kernel.org
L: virtualization@lists.linux-foundation.org
Makefile
+2 -39
View File
@@ -863,44 +863,6 @@ ifdef CONFIG_ZERO_CALL_USED_REGS
KBUILD_CFLAGS += -fzero-call-used-regs=used-gpr
endif
DEBUG_CFLAGS :=
ifdef CONFIG_DEBUG_INFO
ifdef CONFIG_DEBUG_INFO_SPLIT
DEBUG_CFLAGS += -gsplit-dwarf
else
DEBUG_CFLAGS += -g
endif
ifndef CONFIG_AS_IS_LLVM
KBUILD_AFLAGS += -Wa,-gdwarf-2
endif
ifndef CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
dwarf-version-$(CONFIG_DEBUG_INFO_DWARF4) := 4
dwarf-version-$(CONFIG_DEBUG_INFO_DWARF5) := 5
DEBUG_CFLAGS += -gdwarf-$(dwarf-version-y)
endif
ifdef CONFIG_DEBUG_INFO_REDUCED
DEBUG_CFLAGS += -fno-var-tracking
ifdef CONFIG_CC_IS_GCC
DEBUG_CFLAGS += -femit-struct-debug-baseonly
endif
endif
ifdef CONFIG_DEBUG_INFO_COMPRESSED
DEBUG_CFLAGS += -gz=zlib
KBUILD_AFLAGS += -gz=zlib
KBUILD_LDFLAGS += --compress-debug-sections=zlib
endif
endif # CONFIG_DEBUG_INFO
KBUILD_CFLAGS += $(DEBUG_CFLAGS)
export DEBUG_CFLAGS
ifdef CONFIG_FUNCTION_TRACER
ifdef CONFIG_FTRACE_MCOUNT_USE_CC
CC_FLAGS_FTRACE += -mrecord-mcount
@@ -1003,7 +965,7 @@ KBUILD_CFLAGS += -falign-functions=64
endif
# arch Makefile may override CC so keep this after arch Makefile is included
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
NOSTDINC_FLAGS += -nostdinc
# warn about C99 declaration after statement
KBUILD_CFLAGS += -Wdeclaration-after-statement
@@ -1070,6 +1032,7 @@ KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
# include additional Makefiles when needed
include-y := scripts/Makefile.extrawarn
include-$(CONFIG_DEBUG_INFO) += scripts/Makefile.debug
include-$(CONFIG_KASAN) += scripts/Makefile.kasan
include-$(CONFIG_KCSAN) += scripts/Makefile.kcsan
include-$(CONFIG_UBSAN) += scripts/Makefile.ubsan
arch/alpha/Kbuild
+3
View File
@@ -1,3 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y += kernel/ mm/
obj-$(CONFIG_MATHEMU) += math-emu/
# for cleaning
subdir- += boot
arch/alpha/Makefile
-3
View File
@@ -55,9 +55,6 @@ $(boot)/vmlinux.gz: vmlinux
bootimage bootpfile bootpzfile: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
archheaders:
$(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
arch/arc/Kbuild
+3
View File
@@ -1,3 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-y += kernel/
obj-y += mm/
# for cleaning
subdir- += boot
arch/arc/Makefile
-3
View File
@@ -112,6 +112,3 @@ uImage: $(uimage-default-y)
@$(kecho) ' Image $(boot)/uImage is ready'
CLEAN_FILES += $(boot)/uImage
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
arch/arm/Kbuild
+3
View File
@@ -9,3 +9,6 @@ obj-y += kernel/ mm/ common/
obj-y += probes/
obj-y += net/
obj-y += crypto/
# for cleaning
subdir- += boot
arch/arm/Makefile
-4
View File
@@ -318,10 +318,6 @@ ifeq ($(CONFIG_VDSO),y)
$(Q)$(MAKE) $(build)=arch/arm/vdso $@
endif
# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
# My testing targets (bypasses dependencies)
bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
arch/arm64/Kbuild
+3
View File
@@ -4,3 +4,6 @@ obj-$(CONFIG_KVM) += kvm/
obj-$(CONFIG_XEN) += xen/
obj-$(subst m,y,$(CONFIG_HYPERV)) += hyperv/
obj-$(CONFIG_CRYPTO) += crypto/
# for cleaning
subdir- += boot
arch/arm64/Makefile
-7
View File
@@ -185,13 +185,6 @@ ifeq ($(CONFIG_ARM64_USE_LSE_ATOMICS),y)
endif
endif
# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=arch/arm64/kernel/vdso
$(Q)$(MAKE) $(clean)=arch/arm64/kernel/vdso32
ifeq ($(KBUILD_EXTMOD),)
# We need to generate vdso-offsets.h before compiling certain files in kernel/.
# In order to do that, we should use the archprepare target, but we can't since
arch/arm64/kernel/Makefile
+3
View File
@@ -81,3 +81,6 @@ extra-y += $(head-y) vmlinux.lds
ifeq ($(CONFIG_DEBUG_EFI),y)
AFLAGS_head.o += -DVMLINUX_PATH="\"$(realpath $(objtree)/vmlinux)\""
endif
# for cleaning
subdir- += vdso vdso32
arch/arm64/lib/Makefile
+2
View File
@@ -9,6 +9,8 @@ ifeq ($(CONFIG_KERNEL_MODE_NEON), y)
obj-$(CONFIG_XOR_BLOCKS) += xor-neon.o
CFLAGS_REMOVE_xor-neon.o += -mgeneral-regs-only
CFLAGS_xor-neon.o += -ffreestanding
# Enable <arm_neon.h>
CFLAGS_xor-neon.o += -isystem $(shell $(CC) -print-file-name=include)
endif
lib-$(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) += uaccess_flushcache.o
arch/csky/Kbuild
+3
View File
@@ -1 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
# for cleaning
subdir- += boot
arch/csky/Makefile
-3
View File
@@ -76,9 +76,6 @@ all: zImage
zImage Image uImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
arch/h8300/Kbuild
+3
View File
@@ -1,2 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y += kernel/ mm/ boot/dts/
# for cleaning
subdir- += boot
arch/h8300/Makefile
-3
View File
@@ -34,9 +34,6 @@ libs-y += arch/$(ARCH)/lib/
boot := arch/h8300/boot
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
vmlinux.srec vmlinux.bin zImage uImage.bin: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
arch/ia64/Makefile
-2
View File
@@ -67,8 +67,6 @@ vmlinux.bin: vmlinux FORCE
unwcheck: vmlinux
-$(Q)READELF=$(READELF) $(PYTHON3) $(srctree)/arch/ia64/scripts/unwcheck.py $<
archclean:
archheaders:
$(Q)$(MAKE) $(build)=arch/ia64/kernel/syscalls all
arch/m68k/Makefile
+1 -3
View File
@@ -2,9 +2,7 @@
# m68k/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
arch/microblaze/Kbuild
+3
View File
@@ -3,3 +3,6 @@ obj-y += kernel/
obj-y += mm/
obj-$(CONFIG_PCI) += pci/
obj-y += boot/dts/
# for cleaning
subdir- += boot
arch/microblaze/Makefile
-3
View File
@@ -60,9 +60,6 @@ export DTB
all: linux.bin
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
archheaders:
$(Q)$(MAKE) $(build)=arch/microblaze/kernel/syscalls all
arch/microblaze/pci/pci-common.c
+1 -2
View File
@@ -587,13 +587,12 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_resources);
int pcibios_add_device(struct pci_dev *dev)
int pcibios_device_add(struct pci_dev *dev)
{
dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
return 0;
}
EXPORT_SYMBOL(pcibios_add_device);
/*
* Reparent resource children of pr that conflict with res
arch/mips/Kbuild
+3
View File
@@ -25,3 +25,6 @@ obj-y += vdso/
ifdef CONFIG_KVM
obj-y += kvm/
endif
# for cleaning
subdir- += boot
arch/mips/Makefile
+1 -7
View File
@@ -8,8 +8,7 @@
# Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" cleaning up for this architecture.
# architecture-specific flags and dependencies.
#
archscripts: scripts_basic
@@ -426,11 +425,6 @@ endif
$(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
$(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
archclean:
$(Q)$(MAKE) $(clean)=arch/mips/boot
$(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
$(Q)$(MAKE) $(clean)=arch/mips/boot/tools
archheaders:
$(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
arch/mips/boot/Makefile
+3
View File
@@ -171,3 +171,6 @@ $(obj)/vmlinux.itb: $(obj)/vmlinux.its $(obj)/vmlinux.bin FORCE
$(obj)/vmlinux.%.itb: $(obj)/vmlinux.%.its $(obj)/vmlinux.bin.% FORCE
$(call if_changed,itb-image,$<)
# for cleaning
subdir- += compressed tools
arch/mips/ralink/Kconfig
+2 -1
View File
@@ -51,7 +51,8 @@ choice
select SYS_SUPPORTS_HIGHMEM
select MIPS_GIC
select CLKSRC_MIPS_GIC
select HAVE_PCI if PCI_MT7621
select HAVE_PCI
select PCI_DRIVERS_GENERIC
select SOC_BUS
endchoice
arch/nds32/Kbuild
+3
View File
@@ -1 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
# for cleaning
subdir- += boot
arch/nds32/Makefile
+2 -3
View File
@@ -9,6 +9,8 @@ endif
# Avoid generating FPU instructions
arch-y += -mno-ext-fpu-sp -mno-ext-fpu-dp -mfloat-abi=soft
# Enable <nds32_intrinsic.h>
KBUILD_CFLAGS += -isystem $(shell $(CC) -print-file-name=include)
KBUILD_CFLAGS += $(call cc-option, -mno-sched-prolog-epilog)
KBUILD_CFLAGS += -mcmodel=large
@@ -62,9 +64,6 @@ prepare: vdso_prepare
vdso_prepare: prepare0
$(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso include/generated/vdso-offsets.h
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
echo ' Image - kernel image (arch/$(ARCH)/boot/Image)'
endef
arch/nios2/Kbuild
+3
View File
@@ -1 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
# for cleaning
subdir- += boot
arch/nios2/Makefile
+3 -6
View File
@@ -8,8 +8,7 @@
# Written by Fredrik Markstrom
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" cleaning up for this architecture.
# architecture-specific flags and dependencies.
#
# Nios2 port by Wind River Systems Inc trough:
# fredrik.markstrom@gmail.com and ivarholmqvist@gmail.com
@@ -53,14 +52,12 @@ core-y += $(nios2-boot)/dts/
all: vmImage
archclean:
$(Q)$(MAKE) $(clean)=$(nios2-boot)
$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
install:
$(Q)$(MAKE) $(build)=$(nios2-boot) BOOTIMAGE=$(KBUILD_IMAGE) install
sh $(srctree)/$(nios2-boot)/install.sh $(KERNELRELEASE) \
$(KBUILD_IMAGE) System.map "$(INSTALL_PATH)"
define archhelp
echo '* vmImage - Kernel-only image for U-Boot ($(KBUILD_IMAGE))'
arch/nios2/boot/Makefile
-3
View File
@@ -30,6 +30,3 @@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE
$(obj)/compressed/vmlinux: $(obj)/vmlinux.gz FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
install:
sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
arch/openrisc/Kbuild
+3
View File
@@ -1,3 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-y += lib/ kernel/ mm/
obj-y += boot/dts/
# for cleaning
subdir- += boot
arch/openrisc/Makefile
+1 -6
View File
@@ -1,9 +1,7 @@
# BK Id: %F% %I% %G% %U% %#%
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
@@ -48,6 +46,3 @@ PHONY += vmlinux.bin
vmlinux.bin: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
arch/openrisc/kernel/dma.c
+2 -2
View File
@@ -33,7 +33,7 @@ page_set_nocache(pte_t *pte, unsigned long addr,
* Flush the page out of the TLB so that the new page flags get
* picked up next time there's an access
*/
flush_tlb_page(NULL, addr);
flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
/* Flush page out of dcache */
for (cl = __pa(addr); cl < __pa(next); cl += cpuinfo->dcache_block_size)
@@ -56,7 +56,7 @@ page_clear_nocache(pte_t *pte, unsigned long addr,
* Flush the page out of the TLB so that the new page flags get
* picked up next time there's an access
*/
flush_tlb_page(NULL, addr);
flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
return 0;
}
arch/openrisc/kernel/signal.c
-2
View File
@@ -28,8 +28,6 @@
#include <asm/ucontext.h>
#include <linux/uaccess.h>
#define DEBUG_SIG 0
struct rt_sigframe {
struct siginfo info;
struct ucontext uc;
arch/openrisc/kernel/smp.c
+4 -2
View File
@@ -268,7 +268,7 @@ static inline void ipi_flush_tlb_range(void *info)
local_flush_tlb_range(NULL, fd->addr1, fd->addr2);
}
static void smp_flush_tlb_range(struct cpumask *cmask, unsigned long start,
static void smp_flush_tlb_range(const struct cpumask *cmask, unsigned long start,
unsigned long end)
{
unsigned int cpuid;
@@ -316,7 +316,9 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
void flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
smp_flush_tlb_range(mm_cpumask(vma->vm_mm), start, end);
const struct cpumask *cmask = vma ? mm_cpumask(vma->vm_mm)
: cpu_online_mask;
smp_flush_tlb_range(cmask, start, end);
}
/* Instruction cache invalidate - performed on each cpu */
arch/openrisc/kernel/time.c
+1 -1
View File
@@ -127,7 +127,7 @@ irqreturn_t __irq_entry timer_interrupt(struct pt_regs *regs)
return IRQ_HANDLED;
}
/**
/*
* Clocksource: Based on OpenRISC timer/counter
*
* This sets up the OpenRISC Tick Timer as a clock source. The tick timer
arch/parisc/Kbuild
+3
View File
@@ -1,2 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y += mm/ kernel/ math-emu/
# for cleaning
subdir- += boot
arch/parisc/Makefile
+1 -6
View File
@@ -2,9 +2,7 @@
# parisc/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
@@ -181,8 +179,5 @@ define archhelp
@echo ' zinstall - Install compressed vmlinuz kernel'
endef
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
archheaders:
$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
arch/powerpc/Kbuild
+3
View File
@@ -16,3 +16,6 @@ obj-$(CONFIG_KVM) += kvm/
obj-$(CONFIG_PERF_EVENTS) += perf/
obj-$(CONFIG_KEXEC_CORE) += kexec/
obj-$(CONFIG_KEXEC_FILE) += purgatory/
# for cleaning
subdir- += boot
arch/powerpc/Makefile
+1 -6
View File
@@ -1,7 +1,5 @@
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture.
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
@@ -411,9 +409,6 @@ install:
sh -x $(srctree)/$(boot)/install.sh "$(KERNELRELEASE)" vmlinux \
System.map "$(INSTALL_PATH)"
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
ifeq ($(KBUILD_EXTMOD),)
# We need to generate vdso-offsets.h before compiling certain files in kernel/.
# In order to do that, we should use the archprepare target, but we can't since
arch/powerpc/include/asm/ppc-pci.h
-5
View File
@@ -55,11 +55,6 @@ void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
void eeh_sysfs_add_device(struct pci_dev *pdev);
void eeh_sysfs_remove_device(struct pci_dev *pdev);
static inline const char *eeh_driver_name(struct pci_dev *pdev)
{
return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
}
#endif /* CONFIG_EEH */
#define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
arch/powerpc/kernel/eeh.c
+8
View File
@@ -399,6 +399,14 @@ out:
return ret;
}
static inline const char *eeh_driver_name(struct pci_dev *pdev)
{
if (pdev)
return dev_driver_string(&pdev->dev);
return "<null>";
}
/**
* eeh_dev_check_failure - Check if all 1's data is due to EEH slot freeze
* @edev: eeh device
arch/powerpc/kernel/eeh_driver.c
+5 -5
View File
@@ -104,13 +104,13 @@ static bool eeh_edev_actionable(struct eeh_dev *edev)
*/
static inline struct pci_driver *eeh_pcid_get(struct pci_dev *pdev)
{
if (!pdev || !pdev->driver)
if (!pdev || !pdev->dev.driver)
return NULL;
if (!try_module_get(pdev->driver->driver.owner))
if (!try_module_get(pdev->dev.driver->owner))
return NULL;
return pdev->driver;
return to_pci_driver(pdev->dev.driver);
}
/**
@@ -122,10 +122,10 @@ static inline struct pci_driver *eeh_pcid_get(struct pci_dev *pdev)
*/
static inline void eeh_pcid_put(struct pci_dev *pdev)
{
if (!pdev || !pdev->driver)
if (!pdev || !pdev->dev.driver)
return;
module_put(pdev->driver->driver.owner);
module_put(pdev->dev.driver->owner);
}
/**
arch/powerpc/kernel/pci-common.c
+1 -1
View File
@@ -1059,7 +1059,7 @@ void pcibios_bus_add_device(struct pci_dev *dev)
ppc_md.pcibios_bus_add_device(dev);
}
int pcibios_add_device(struct pci_dev *dev)
int pcibios_device_add(struct pci_dev *dev)
{
struct irq_domain *d;
arch/powerpc/lib/Makefile
+2
View File
@@ -65,5 +65,7 @@ obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o
obj-$(CONFIG_ALTIVEC) += xor_vmx.o xor_vmx_glue.o
CFLAGS_xor_vmx.o += -maltivec $(call cc-option,-mabi=altivec)
# Enable <altivec.h>
CFLAGS_xor_vmx.o += -isystem $(shell $(CC) -print-file-name=include)
obj-$(CONFIG_PPC64) += $(obj64-y)
arch/powerpc/platforms/powernv/ocxl.c
+2 -1
View File
@@ -107,7 +107,8 @@ static int get_max_afu_index(struct pci_dev *dev, int *afu_idx)
int pos;
u32 val;
pos = find_dvsec_from_pos(dev, OCXL_DVSEC_FUNC_ID, 0);
pos = pci_find_dvsec_capability(dev, PCI_VENDOR_ID_IBM,
OCXL_DVSEC_FUNC_ID);
if (!pos)
return -ESRCH;
arch/powerpc/platforms/powernv/pci-sriov.c
+1 -1
View File
@@ -51,7 +51,7 @@
* to "new_size", calculated above. Implementing this is a convoluted process
* which requires several hooks in the PCI core:
*
* 1. In pcibios_add_device() we call pnv_pci_ioda_fixup_iov().
* 1. In pcibios_device_add() we call pnv_pci_ioda_fixup_iov().
*
* At this point the device has been probed and the device's BARs are sized,
* but no resource allocations have been done. The SR-IOV BARs are sized
arch/riscv/Kbuild
+3
View File
@@ -2,3 +2,6 @@
obj-y += kernel/ mm/ net/
obj-$(CONFIG_BUILTIN_DTB) += boot/dts/
# for cleaning
subdir- += boot
arch/riscv/Makefile
+1 -6
View File
@@ -1,7 +1,5 @@
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
@@ -138,6 +136,3 @@ zinstall: install-image = Image.gz
install zinstall:
$(CONFIG_SHELL) $(srctree)/$(boot)/install.sh $(KERNELRELEASE) \
$(boot)/$(install-image) System.map "$(INSTALL_PATH)"
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
arch/s390/Kbuild
+3
View File
@@ -8,3 +8,6 @@ obj-$(CONFIG_APPLDATA_BASE) += appldata/
obj-y += net/
obj-$(CONFIG_PCI) += pci/
obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += purgatory/
# for cleaning
subdir- += boot tools
arch/s390/Kconfig
+26
View File
@@ -153,12 +153,15 @@ config S390
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_ARGS
select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
select HAVE_EFFICIENT_UNALIGNED_ACCESS
select HAVE_FAST_GUP
select HAVE_FENTRY
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_FUNCTION_ERROR_INJECTION
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
@@ -190,6 +193,7 @@ config S390
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE
select HAVE_RSEQ
select HAVE_SAMPLE_FTRACE_DIRECT
select HAVE_SOFTIRQ_ON_OWN_STACK
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_VIRT_CPU_ACCOUNTING
@@ -434,6 +438,14 @@ endchoice
config 64BIT
def_bool y
config COMMAND_LINE_SIZE
int "Maximum size of kernel command line"
default 4096
range 896 1048576
help
This allows you to specify the maximum length of the kernel command
line.
config COMPAT
def_bool y
prompt "Kernel support for 31 bit emulation"
@@ -938,6 +950,8 @@ menu "Selftests"
config S390_UNWIND_SELFTEST
def_tristate n
depends on KUNIT
default KUNIT_ALL_TESTS
prompt "Test unwind functions"
help
This option enables s390 specific stack unwinder testing kernel
@@ -946,4 +960,16 @@ config S390_UNWIND_SELFTEST
Say N if you are unsure.
config S390_KPROBES_SANITY_TEST
def_tristate n
prompt "Enable s390 specific kprobes tests"
depends on KPROBES
depends on KUNIT
help
This option enables an s390 specific kprobes test module. This option
is not useful for distributions or general kernels, but only for kernel
developers working on architecture code.
Say N if you are unsure.
endmenu
arch/s390/Makefile
+1 -7
View File
@@ -3,9 +3,7 @@
# s390/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# architecture-specific flags and dependencies.
#
# Copyright (C) 1994 by Linus Torvalds
#
@@ -147,10 +145,6 @@ zfcpdump:
vdso_install:
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=$(tools)
archheaders:
$(Q)$(MAKE) $(build)=$(syscalls) uapi
arch/s390/boot/compressed/decompressor.h
+1
View File
@@ -24,6 +24,7 @@ struct vmlinux_info {
unsigned long dynsym_start;
unsigned long rela_dyn_start;
unsigned long rela_dyn_end;
unsigned long amode31_size;
};
/* Symbols defined by linker scripts */
arch/s390/boot/head.S
+29 -25
View File
@@ -184,35 +184,23 @@ iplstart:
bas %r14,.Lloader # load parameter file
ltr %r2,%r2 # got anything ?
bz .Lnopf
chi %r2,895
bnh .Lnotrunc
la %r2,895
l %r3,MAX_COMMAND_LINE_SIZE+ARCH_OFFSET-PARMAREA(%r12)
ahi %r3,-1
clr %r2,%r3
bl .Lnotrunc
lr %r2,%r3
.Lnotrunc:
l %r4,.Linitrd
clc 0(3,%r4),.L_hdr # if it is HDRx
bz .Lagain1 # skip dataset header
clc 0(3,%r4),.L_eof # if it is EOFx
bz .Lagain1 # skip dateset trailer
la %r5,0(%r4,%r2)
lr %r3,%r2
la %r3,COMMAND_LINE-PARMAREA(%r12) # load adr. of command line
mvc 0(256,%r3),0(%r4)
mvc 256(256,%r3),256(%r4)
mvc 512(256,%r3),512(%r4)
mvc 768(122,%r3),768(%r4)
slr %r0,%r0
b .Lcntlp
.Ldelspc:
ic %r0,0(%r2,%r3)
chi %r0,0x20 # is it a space ?
be .Lcntlp
ahi %r2,1
b .Leolp
.Lcntlp:
brct %r2,.Ldelspc
.Leolp:
slr %r0,%r0
stc %r0,0(%r2,%r3) # terminate buffer
lr %r5,%r2
la %r6,COMMAND_LINE-PARMAREA(%r12)
lr %r7,%r2
ahi %r7,1
mvcl %r6,%r4
.Lnopf:
#
@@ -317,6 +305,7 @@ SYM_CODE_START_LOCAL(startup_normal)
xc 0x300(256),0x300
xc 0xe00(256),0xe00
xc 0xf00(256),0xf00
lctlg %c0,%c15,.Lctl-.LPG0(%r13) # load control registers
stcke __LC_BOOT_CLOCK
mvc __LC_LAST_UPDATE_CLOCK(8),__LC_BOOT_CLOCK+1
spt 6f-.LPG0(%r13)
@@ -335,6 +324,22 @@ SYM_CODE_END(startup_normal)
.quad 0x0000000180000000,startup_pgm_check_handler
.Lio_new_psw:
.quad 0x0002000180000000,0x1f0 # disabled wait
.Lctl: .quad 0x04040000 # cr0: AFP registers & secondary space
.quad 0 # cr1: primary space segment table
.quad 0 # cr2: dispatchable unit control table
.quad 0 # cr3: instruction authorization
.quad 0xffff # cr4: instruction authorization
.quad 0 # cr5: primary-aste origin
.quad 0 # cr6: I/O interrupts
.quad 0 # cr7: secondary space segment table
.quad 0x0000000000008000 # cr8: access registers translation
.quad 0 # cr9: tracing off
.quad 0 # cr10: tracing off
.quad 0 # cr11: tracing off
.quad 0 # cr12: tracing off
.quad 0 # cr13: home space segment table
.quad 0xc0000000 # cr14: machine check handling off
.quad 0 # cr15: linkage stack operations
#include "head_kdump.S"
@@ -377,11 +382,10 @@ SYM_DATA_START(parmarea)
.quad 0 # OLDMEM_BASE
.quad 0 # OLDMEM_SIZE
.quad kernel_version # points to kernel version string
.quad COMMAND_LINE_SIZE
.org COMMAND_LINE
.byte "root=/dev/ram0 ro"
.byte 0
.org PARMAREA+__PARMAREA_SIZE
SYM_DATA_END(parmarea)
.org HEAD_END
arch/s390/boot/ipl_parm.c
+2 -2
View File
@@ -170,10 +170,10 @@ static inline int has_ebcdic_char(const char *str)
void setup_boot_command_line(void)
{
parmarea.command_line[ARCH_COMMAND_LINE_SIZE - 1] = 0;
parmarea.command_line[COMMAND_LINE_SIZE - 1] = 0;
/* convert arch command line to ascii if necessary */
if (has_ebcdic_char(parmarea.command_line))
EBCASC(parmarea.command_line, ARCH_COMMAND_LINE_SIZE);
EBCASC(parmarea.command_line, COMMAND_LINE_SIZE);
/* copy arch command line */
strcpy(early_command_line, strim(parmarea.command_line));
arch/s390/boot/pgm_check_info.c
+2 -2
View File
@@ -175,6 +175,6 @@ void print_pgm_check_info(void)
gpregs[12], gpregs[13], gpregs[14], gpregs[15]);
print_stacktrace();
decompressor_printk("Last Breaking-Event-Address:\n");
decompressor_printk(" [<%016lx>] %pS\n", (unsigned long)S390_lowcore.breaking_event_addr,
(void *)S390_lowcore.breaking_event_addr);
decompressor_printk(" [<%016lx>] %pS\n", (unsigned long)S390_lowcore.pgm_last_break,
(void *)S390_lowcore.pgm_last_break);
}
arch/s390/boot/startup.c
+8
View File
@@ -15,6 +15,7 @@
#include "uv.h"
unsigned long __bootdata_preserved(__kaslr_offset);
unsigned long __bootdata(__amode31_base);
unsigned long __bootdata_preserved(VMALLOC_START);
unsigned long __bootdata_preserved(VMALLOC_END);
struct page *__bootdata_preserved(vmemmap);
@@ -259,6 +260,12 @@ static void offset_vmlinux_info(unsigned long offset)
vmlinux.dynsym_start += offset;
}
static unsigned long reserve_amode31(unsigned long safe_addr)
{
__amode31_base = PAGE_ALIGN(safe_addr);
return safe_addr + vmlinux.amode31_size;
}
void startup_kernel(void)
{
unsigned long random_lma;
@@ -273,6 +280,7 @@ void startup_kernel(void)
setup_lpp();
store_ipl_parmblock();
safe_addr = mem_safe_offset();
safe_addr = reserve_amode31(safe_addr);
safe_addr = read_ipl_report(safe_addr);
uv_query_info();
rescue_initrd(safe_addr);
arch/s390/configs/debug_defconfig
+7 -2
View File
@@ -61,7 +61,8 @@ CONFIG_PROTECTED_VIRTUALIZATION_GUEST=y
CONFIG_CMM=m
CONFIG_APPLDATA_BASE=y
CONFIG_KVM=m
CONFIG_S390_UNWIND_SELFTEST=y
CONFIG_S390_UNWIND_SELFTEST=m
CONFIG_S390_KPROBES_SANITY_TEST=m
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
CONFIG_STATIC_KEYS_SELFTEST=y
@@ -776,7 +777,6 @@ CONFIG_CRC8=m
CONFIG_RANDOM32_SELFTEST=y
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_DMA_API_DEBUG=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
@@ -839,8 +839,13 @@ CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_HIST_TRIGGERS=y
CONFIG_FTRACE_STARTUP_TEST=y
# CONFIG_EVENT_TRACE_STARTUP_TEST is not set
CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACE_PRINTK=m
CONFIG_SAMPLE_FTRACE_DIRECT=m
CONFIG_DEBUG_ENTRY=y
CONFIG_CIO_INJECT=y
CONFIG_KUNIT=m
CONFIG_KUNIT_DEBUGFS=y
CONFIG_NOTIFIER_ERROR_INJECTION=m
CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=m
CONFIG_FAULT_INJECTION=y
arch/s390/configs/defconfig
+6
View File
@@ -60,6 +60,7 @@ CONFIG_CMM=m
CONFIG_APPLDATA_BASE=y
CONFIG_KVM=m
CONFIG_S390_UNWIND_SELFTEST=m
CONFIG_S390_KPROBES_SANITY_TEST=m
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_GCC_PLUGINS is not set
@@ -788,6 +789,11 @@ CONFIG_FTRACE_SYSCALLS=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_HIST_TRIGGERS=y
CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACE_PRINTK=m
CONFIG_SAMPLE_FTRACE_DIRECT=m
CONFIG_KUNIT=m
CONFIG_KUNIT_DEBUGFS=y
CONFIG_LKDTM=m
CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=y
arch/s390/include/asm/barrier.h
+14 -10
View File
@@ -16,20 +16,24 @@
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
/* Fast-BCR without checkpoint synchronization */
#define __ASM_BARRIER "bcr 14,0\n"
#define __ASM_BCR_SERIALIZE "bcr 14,0\n"
#else
#define __ASM_BARRIER "bcr 15,0\n"
#define __ASM_BCR_SERIALIZE "bcr 15,0\n"
#endif
#define mb() do { asm volatile(__ASM_BARRIER : : : "memory"); } while (0)
static __always_inline void bcr_serialize(void)
{
asm volatile(__ASM_BCR_SERIALIZE : : : "memory");
}
#define rmb() barrier()
#define wmb() barrier()
#define dma_rmb() mb()
#define dma_wmb() mb()
#define __smp_mb() mb()
#define __smp_rmb() rmb()
#define __smp_wmb() wmb()
#define mb() bcr_serialize()
#define rmb() barrier()
#define wmb() barrier()
#define dma_rmb() mb()
#define dma_wmb() mb()
#define __smp_mb() mb()
#define __smp_rmb() rmb()
#define __smp_wmb() wmb()
#define __smp_store_release(p, v) \
do { \
arch/s390/include/asm/bitops.h
+1 -1
View File
@@ -188,7 +188,7 @@ static inline bool arch_test_and_set_bit_lock(unsigned long nr,
volatile unsigned long *ptr)
{
if (arch_test_bit(nr, ptr))
return 1;
return true;
return arch_test_and_set_bit(nr, ptr);
}
arch/s390/include/asm/cpu.h
+3
View File
@@ -12,6 +12,7 @@
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <linux/jump_label.h>
struct cpuid
{
@@ -21,5 +22,7 @@ struct cpuid
unsigned int unused : 16;
} __attribute__ ((packed, aligned(8)));
DECLARE_STATIC_KEY_FALSE(cpu_has_bear);
#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_CPU_H */
arch/s390/include/asm/debug.h
+1 -1
View File
@@ -462,7 +462,7 @@ arch_initcall(VNAME(var, reg))
*
* @var: Name of debug_info_t variable
* @name: Name of debug log (e.g. used for debugfs entry)
* @pages_per_area: Number of pages per area
* @pages: Number of pages per area
* @nr_areas: Number of debug areas
* @buf_size: Size of data area in each debug entry
* @view: Pointer to debug view struct
arch/s390/include/asm/ftrace.h
+57 -1
View File
@@ -17,7 +17,6 @@
void ftrace_caller(void);
extern char ftrace_graph_caller_end;
extern void *ftrace_func;
struct dyn_arch_ftrace { };
@@ -42,6 +41,35 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr)
return addr;
}
struct ftrace_regs {
struct pt_regs regs;
};
static __always_inline struct pt_regs *arch_ftrace_get_regs(struct ftrace_regs *fregs)
{
return &fregs->regs;
}
static __always_inline void ftrace_instruction_pointer_set(struct ftrace_regs *fregs,
unsigned long ip)
{
struct pt_regs *regs = arch_ftrace_get_regs(fregs);
regs->psw.addr = ip;
}
/*
* When an ftrace registered caller is tracing a function that is
* also set by a register_ftrace_direct() call, it needs to be
* differentiated in the ftrace_caller trampoline. To do this,
* place the direct caller in the ORIG_GPR2 part of pt_regs. This
* tells the ftrace_caller that there's a direct caller.
*/
static inline void arch_ftrace_set_direct_caller(struct pt_regs *regs, unsigned long addr)
{
regs->orig_gpr2 = addr;
}
/*
* Even though the system call numbers are identical for s390/s390x a
* different system call table is used for compat tasks. This may lead
@@ -68,4 +96,32 @@ static inline bool arch_syscall_match_sym_name(const char *sym,
}
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_FUNCTION_TRACER
#define FTRACE_NOP_INSN .word 0xc004, 0x0000, 0x0000 /* brcl 0,0 */
#ifndef CC_USING_HOTPATCH
#define FTRACE_GEN_MCOUNT_RECORD(name) \
.section __mcount_loc, "a", @progbits; \
.quad name; \
.previous;
#else /* !CC_USING_HOTPATCH */
#define FTRACE_GEN_MCOUNT_RECORD(name)
#endif /* !CC_USING_HOTPATCH */
#define FTRACE_GEN_NOP_ASM(name) \
FTRACE_GEN_MCOUNT_RECORD(name) \
FTRACE_NOP_INSN
#else /* CONFIG_FUNCTION_TRACER */
#define FTRACE_GEN_NOP_ASM(name)
#endif /* CONFIG_FUNCTION_TRACER */
#endif /* _ASM_S390_FTRACE_H */
arch/s390/include/asm/jump_label.h
+2
View File
@@ -2,6 +2,8 @@
#ifndef _ASM_S390_JUMP_LABEL_H
#define _ASM_S390_JUMP_LABEL_H
#define HAVE_JUMP_LABEL_BATCH
#ifndef __ASSEMBLY__
#include <linux/types.h>
arch/s390/include/asm/livepatch.h
+1 -3
View File
@@ -16,9 +16,7 @@
static inline void klp_arch_set_pc(struct ftrace_regs *fregs, unsigned long ip)
{
struct pt_regs *regs = ftrace_get_regs(fregs);
regs->psw.addr = ip;
ftrace_instruction_pointer_set(fregs, ip);
}
#endif
arch/s390/include/asm/lowcore.h
+5 -4
View File
@@ -65,7 +65,7 @@ struct lowcore {
__u32 external_damage_code; /* 0x00f4 */
__u64 failing_storage_address; /* 0x00f8 */
__u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */
__u64 breaking_event_addr; /* 0x0110 */
__u64 pgm_last_break; /* 0x0110 */
__u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */
psw_t restart_old_psw; /* 0x0120 */
psw_t external_old_psw; /* 0x0130 */
@@ -93,9 +93,10 @@ struct lowcore {
psw_t return_psw; /* 0x0290 */
psw_t return_mcck_psw; /* 0x02a0 */
__u64 last_break; /* 0x02b0 */
/* CPU accounting and timing values. */
__u64 sys_enter_timer; /* 0x02b0 */
__u8 pad_0x02b8[0x02c0-0x02b8]; /* 0x02b8 */
__u64 sys_enter_timer; /* 0x02b8 */
__u64 mcck_enter_timer; /* 0x02c0 */
__u64 exit_timer; /* 0x02c8 */
__u64 user_timer; /* 0x02d0 */
@@ -188,7 +189,7 @@ struct lowcore {
__u32 tod_progreg_save_area; /* 0x1324 */
__u32 cpu_timer_save_area[2]; /* 0x1328 */
__u32 clock_comp_save_area[2]; /* 0x1330 */
__u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */
__u64 last_break_save_area; /* 0x1338 */
__u32 access_regs_save_area[16]; /* 0x1340 */
__u64 cregs_save_area[16]; /* 0x1380 */
__u8 pad_0x1400[0x1800-0x1400]; /* 0x1400 */
arch/s390/include/asm/nospec-branch.h
+5
View File
@@ -12,6 +12,11 @@ void nospec_init_branches(void);
void nospec_auto_detect(void);
void nospec_revert(s32 *start, s32 *end);
static inline bool nospec_uses_trampoline(void)
{
return __is_defined(CC_USING_EXPOLINE) && !nospec_disable;
}
#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_EXPOLINE_H */
arch/s390/include/asm/pgtable.h
+6 -6
View File
@@ -583,11 +583,11 @@ static inline void cspg(unsigned long *ptr, unsigned long old, unsigned long new
#define CRDTE_DTT_REGION1 0x1cUL
static inline void crdte(unsigned long old, unsigned long new,
unsigned long table, unsigned long dtt,
unsigned long *table, unsigned long dtt,
unsigned long address, unsigned long asce)
{
union register_pair r1 = { .even = old, .odd = new, };
union register_pair r2 = { .even = table | dtt, .odd = address, };
union register_pair r2 = { .even = __pa(table) | dtt, .odd = address, };
asm volatile(".insn rrf,0xb98f0000,%[r1],%[r2],%[asce],0"
: [r1] "+&d" (r1.pair)
@@ -1001,7 +1001,7 @@ static __always_inline void __ptep_ipte(unsigned long address, pte_t *ptep,
unsigned long opt, unsigned long asce,
int local)
{
unsigned long pto = (unsigned long) ptep;
unsigned long pto = __pa(ptep);
if (__builtin_constant_p(opt) && opt == 0) {
/* Invalidation + TLB flush for the pte */
@@ -1023,7 +1023,7 @@ static __always_inline void __ptep_ipte(unsigned long address, pte_t *ptep,
static __always_inline void __ptep_ipte_range(unsigned long address, int nr,
pte_t *ptep, int local)
{
unsigned long pto = (unsigned long) ptep;
unsigned long pto = __pa(ptep);
/* Invalidate a range of ptes + TLB flush of the ptes */
do {
@@ -1487,7 +1487,7 @@ static __always_inline void __pmdp_idte(unsigned long addr, pmd_t *pmdp,
{
unsigned long sto;
sto = (unsigned long) pmdp - pmd_index(addr) * sizeof(pmd_t);
sto = __pa(pmdp) - pmd_index(addr) * sizeof(pmd_t);
if (__builtin_constant_p(opt) && opt == 0) {
/* flush without guest asce */
asm volatile(
@@ -1513,7 +1513,7 @@ static __always_inline void __pudp_idte(unsigned long addr, pud_t *pudp,
{
unsigned long r3o;
r3o = (unsigned long) pudp - pud_index(addr) * sizeof(pud_t);
r3o = __pa(pudp) - pud_index(addr) * sizeof(pud_t);
r3o |= _ASCE_TYPE_REGION3;
if (__builtin_constant_p(opt) && opt == 0) {
/* flush without guest asce */
arch/s390/include/asm/ptrace.h
+21 -2
View File
@@ -76,8 +76,7 @@ enum {
* The pt_regs struct defines the way the registers are stored on
* the stack during a system call.
*/
struct pt_regs
{
struct pt_regs {
union {
user_pt_regs user_regs;
struct {
@@ -97,6 +96,7 @@ struct pt_regs
};
unsigned long flags;
unsigned long cr1;
unsigned long last_break;
};
/*
@@ -197,6 +197,25 @@ const char *regs_query_register_name(unsigned int offset);
unsigned long regs_get_register(struct pt_regs *regs, unsigned int offset);
unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n);
/**
* regs_get_kernel_argument() - get Nth function argument in kernel
* @regs: pt_regs of that context
* @n: function argument number (start from 0)
*
* regs_get_kernel_argument() returns @n th argument of the function call.
*/
static inline unsigned long regs_get_kernel_argument(struct pt_regs *regs,
unsigned int n)
{
unsigned int argoffset = STACK_FRAME_OVERHEAD / sizeof(long);
#define NR_REG_ARGUMENTS 5
if (n < NR_REG_ARGUMENTS)
return regs_get_register(regs, 2 + n);
n -= NR_REG_ARGUMENTS;
return regs_get_kernel_stack_nth(regs, argoffset + n);
}
static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
{
return regs->gprs[15];
arch/s390/include/asm/sclp.h
+1
View File
@@ -117,6 +117,7 @@ struct zpci_report_error_header {
extern char *sclp_early_sccb;
void sclp_early_adjust_va(void);
void sclp_early_set_buffer(void *sccb);
int sclp_early_read_info(void);
int sclp_early_read_storage_info(void);
arch/s390/include/asm/setup.h
+6 -3
View File
@@ -11,8 +11,8 @@
#include <linux/build_bug.h>
#define PARMAREA 0x10400
#define HEAD_END 0x11000
#define COMMAND_LINE_SIZE CONFIG_COMMAND_LINE_SIZE
/*
* Machine features detected in early.c
*/
@@ -43,6 +43,8 @@
#define STARTUP_NORMAL_OFFSET 0x10000
#define STARTUP_KDUMP_OFFSET 0x10010
#define LEGACY_COMMAND_LINE_SIZE 896
#ifndef __ASSEMBLY__
#include <asm/lowcore.h>
@@ -55,8 +57,9 @@ struct parmarea {
unsigned long oldmem_base; /* 0x10418 */
unsigned long oldmem_size; /* 0x10420 */
unsigned long kernel_version; /* 0x10428 */
char pad1[0x10480 - 0x10430]; /* 0x10430 - 0x10480 */
char command_line[ARCH_COMMAND_LINE_SIZE]; /* 0x10480 */
unsigned long max_command_line_size; /* 0x10430 */
char pad1[0x10480-0x10438]; /* 0x10438 - 0x10480 */
char command_line[COMMAND_LINE_SIZE]; /* 0x10480 */
};
extern struct parmarea parmarea;
arch/s390/include/asm/string.h
-4
View File
@@ -31,22 +31,18 @@ void *memmove(void *dest, const void *src, size_t n);
#define __HAVE_ARCH_STRCMP /* arch function */
#define __HAVE_ARCH_STRCPY /* inline & arch function */
#define __HAVE_ARCH_STRLCAT /* arch function */
#define __HAVE_ARCH_STRLCPY /* arch function */
#define __HAVE_ARCH_STRLEN /* inline & arch function */
#define __HAVE_ARCH_STRNCAT /* arch function */
#define __HAVE_ARCH_STRNCPY /* arch function */
#define __HAVE_ARCH_STRNLEN /* inline & arch function */
#define __HAVE_ARCH_STRRCHR /* arch function */
#define __HAVE_ARCH_STRSTR /* arch function */
/* Prototypes for non-inlined arch strings functions. */
int memcmp(const void *s1, const void *s2, size_t n);
int strcmp(const char *s1, const char *s2);
size_t strlcat(char *dest, const char *src, size_t n);
size_t strlcpy(char *dest, const char *src, size_t size);
char *strncat(char *dest, const char *src, size_t n);
char *strncpy(char *dest, const char *src, size_t n);
char *strrchr(const char *s, int c);
char *strstr(const char *s1, const char *s2);
#endif /* !CONFIG_KASAN */
arch/s390/include/asm/text-patching.h
+16
View File
@@ -0,0 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390_TEXT_PATCHING_H
#define _ASM_S390_TEXT_PATCHING_H
#include <asm/barrier.h>
static __always_inline void sync_core(void)
{
bcr_serialize();
}
void text_poke_sync(void);
void text_poke_sync_lock(void);
#endif /* _ASM_S390_TEXT_PATCHING_H */
arch/s390/include/uapi/asm/setup.h
-13
View File
@@ -1,14 +1 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* S390 version
* Copyright IBM Corp. 1999, 2010
*/
#ifndef _UAPI_ASM_S390_SETUP_H
#define _UAPI_ASM_S390_SETUP_H
#define COMMAND_LINE_SIZE 4096
#define ARCH_COMMAND_LINE_SIZE 896
#endif /* _UAPI_ASM_S390_SETUP_H */
arch/s390/kernel/alternative.c
+20
View File
@@ -1,5 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <asm/text-patching.h>
#include <asm/alternative.h>
#include <asm/facility.h>
#include <asm/nospec-branch.h>
@@ -110,3 +113,20 @@ void __init apply_alternative_instructions(void)
{
apply_alternatives(__alt_instructions, __alt_instructions_end);
}
static void do_sync_core(void *info)
{
sync_core();
}
void text_poke_sync(void)
{
on_each_cpu(do_sync_core, NULL, 1);
}
void text_poke_sync_lock(void)
{
cpus_read_lock();
text_poke_sync();
cpus_read_unlock();
}
arch/s390/kernel/asm-offsets.c
+6 -1
View File
@@ -35,6 +35,7 @@ int main(void)
OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2);
OFFSET(__PT_FLAGS, pt_regs, flags);
OFFSET(__PT_CR1, pt_regs, cr1);
OFFSET(__PT_LAST_BREAK, pt_regs, last_break);
DEFINE(__PT_SIZE, sizeof(struct pt_regs));
BLANK();
/* stack_frame offsets */
@@ -45,6 +46,7 @@ int main(void)
OFFSET(__SF_SIE_SAVEAREA, stack_frame, empty1[2]);
OFFSET(__SF_SIE_REASON, stack_frame, empty1[3]);
OFFSET(__SF_SIE_FLAGS, stack_frame, empty1[4]);
DEFINE(STACK_FRAME_OVERHEAD, sizeof(struct stack_frame));
BLANK();
/* idle data offsets */
OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter);
@@ -77,7 +79,7 @@ int main(void)
OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code);
OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code);
OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address);
OFFSET(__LC_LAST_BREAK, lowcore, breaking_event_addr);
OFFSET(__LC_PGM_LAST_BREAK, lowcore, pgm_last_break);
OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe);
OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe);
OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw);
@@ -126,6 +128,7 @@ int main(void)
OFFSET(__LC_PREEMPT_COUNT, lowcore, preempt_count);
OFFSET(__LC_GMAP, lowcore, gmap);
OFFSET(__LC_BR_R1, lowcore, br_r1_trampoline);
OFFSET(__LC_LAST_BREAK, lowcore, last_break);
/* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */
OFFSET(__LC_DUMP_REIPL, lowcore, ipib);
/* hardware defined lowcore locations 0x1000 - 0x18ff */
@@ -139,6 +142,7 @@ int main(void)
OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area);
OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area);
OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area);
OFFSET(__LC_LAST_BREAK_SAVE_AREA, lowcore, last_break_save_area);
OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area);
OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area);
OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb);
@@ -160,5 +164,6 @@ int main(void)
DEFINE(OLDMEM_BASE, PARMAREA + offsetof(struct parmarea, oldmem_base));
DEFINE(OLDMEM_SIZE, PARMAREA + offsetof(struct parmarea, oldmem_size));
DEFINE(COMMAND_LINE, PARMAREA + offsetof(struct parmarea, command_line));
DEFINE(MAX_COMMAND_LINE_SIZE, PARMAREA + offsetof(struct parmarea, max_command_line_size));
return 0;
}
arch/s390/kernel/cpcmd.c
+3 -3
View File
@@ -29,7 +29,7 @@ static int diag8_noresponse(int cmdlen)
asm volatile(
" diag %[rx],%[ry],0x8\n"
: [ry] "+&d" (cmdlen)
: [rx] "d" ((addr_t) cpcmd_buf)
: [rx] "d" (__pa(cpcmd_buf))
: "cc");
return cmdlen;
}
@@ -39,8 +39,8 @@ static int diag8_response(int cmdlen, char *response, int *rlen)
union register_pair rx, ry;
int cc;
rx.even = (addr_t) cpcmd_buf;
rx.odd = (addr_t) response;
rx.even = __pa(cpcmd_buf);
rx.odd = __pa(response);
ry.even = cmdlen | 0x40000000L;
ry.odd = *rlen;
asm volatile(
arch/s390/kernel/dumpstack.c
+1 -1
View File
@@ -152,7 +152,7 @@ void show_stack(struct task_struct *task, unsigned long *stack,
static void show_last_breaking_event(struct pt_regs *regs)
{
printk("Last Breaking-Event-Address:\n");
printk(" [<%016lx>] %pSR\n", regs->args[0], (void *)regs->args[0]);
printk(" [<%016lx>] %pSR\n", regs->last_break, (void *)regs->last_break);
}
void show_registers(struct pt_regs *regs)
arch/s390/kernel/early.c
+2 -1
View File
@@ -280,7 +280,7 @@ char __bootdata(early_command_line)[COMMAND_LINE_SIZE];
static void __init setup_boot_command_line(void)
{
/* copy arch command line */
strlcpy(boot_command_line, early_command_line, ARCH_COMMAND_LINE_SIZE);
strlcpy(boot_command_line, early_command_line, COMMAND_LINE_SIZE);
}
static void __init check_image_bootable(void)
@@ -296,6 +296,7 @@ static void __init check_image_bootable(void)
void __init startup_init(void)
{
sclp_early_adjust_va();
reset_tod_clock();
check_image_bootable();
time_early_init();
arch/s390/kernel/entry.S
+37 -8
View File
@@ -52,6 +52,22 @@ STACK_INIT = STACK_SIZE - STACK_FRAME_OVERHEAD - __PT_SIZE
_LPP_OFFSET = __LC_LPP
.macro STBEAR address
ALTERNATIVE "", ".insn s,0xb2010000,\address", 193
.endm
.macro LBEAR address
ALTERNATIVE "", ".insn s,0xb2000000,\address", 193
.endm
.macro LPSWEY address,lpswe
ALTERNATIVE "b \lpswe", ".insn siy,0xeb0000000071,\address,0", 193
.endm
.macro MBEAR reg
ALTERNATIVE "", __stringify(mvc __PT_LAST_BREAK(8,\reg),__LC_LAST_BREAK), 193
.endm
.macro CHECK_STACK savearea
#ifdef CONFIG_CHECK_STACK
tml %r15,STACK_SIZE - CONFIG_STACK_GUARD
@@ -302,6 +318,7 @@ ENTRY(system_call)
BPOFF
lghi %r14,0
.Lsysc_per:
STBEAR __LC_LAST_BREAK
lctlg %c1,%c1,__LC_KERNEL_ASCE
lg %r12,__LC_CURRENT
lg %r15,__LC_KERNEL_STACK
@@ -321,14 +338,16 @@ ENTRY(system_call)
xgr %r11,%r11
la %r2,STACK_FRAME_OVERHEAD(%r15) # pointer to pt_regs
mvc __PT_R8(64,%r2),__LC_SAVE_AREA_SYNC
MBEAR %r2
lgr %r3,%r14
brasl %r14,__do_syscall
lctlg %c1,%c1,__LC_USER_ASCE
mvc __LC_RETURN_PSW(16),STACK_FRAME_OVERHEAD+__PT_PSW(%r15)
BPEXIT __TI_flags(%r12),_TIF_ISOLATE_BP
LBEAR STACK_FRAME_OVERHEAD+__PT_LAST_BREAK(%r15)
lmg %r0,%r15,STACK_FRAME_OVERHEAD+__PT_R0(%r15)
stpt __LC_EXIT_TIMER
b __LC_RETURN_LPSWE
LPSWEY __LC_RETURN_PSW,__LC_RETURN_LPSWE
ENDPROC(system_call)
#
@@ -340,9 +359,10 @@ ENTRY(ret_from_fork)
lctlg %c1,%c1,__LC_USER_ASCE
mvc __LC_RETURN_PSW(16),STACK_FRAME_OVERHEAD+__PT_PSW(%r15)
BPEXIT __TI_flags(%r12),_TIF_ISOLATE_BP
LBEAR STACK_FRAME_OVERHEAD+__PT_LAST_BREAK(%r15)
lmg %r0,%r15,STACK_FRAME_OVERHEAD+__PT_R0(%r15)
stpt __LC_EXIT_TIMER
b __LC_RETURN_LPSWE
LPSWEY __LC_RETURN_PSW,__LC_RETURN_LPSWE
ENDPROC(ret_from_fork)
/*
@@ -382,6 +402,7 @@ ENTRY(pgm_check_handler)
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
stmg %r0,%r7,__PT_R0(%r11)
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
mvc __PT_LAST_BREAK(8,%r11),__LC_PGM_LAST_BREAK
stmg %r8,%r9,__PT_PSW(%r11)
# clear user controlled registers to prevent speculative use
@@ -401,8 +422,9 @@ ENTRY(pgm_check_handler)
stpt __LC_EXIT_TIMER
.Lpgm_exit_kernel:
mvc __LC_RETURN_PSW(16),STACK_FRAME_OVERHEAD+__PT_PSW(%r15)
LBEAR STACK_FRAME_OVERHEAD+__PT_LAST_BREAK(%r15)
lmg %r0,%r15,STACK_FRAME_OVERHEAD+__PT_R0(%r15)
b __LC_RETURN_LPSWE
LPSWEY __LC_RETURN_PSW,__LC_RETURN_LPSWE
#
# single stepped system call
@@ -412,7 +434,8 @@ ENTRY(pgm_check_handler)
larl %r14,.Lsysc_per
stg %r14,__LC_RETURN_PSW+8
lghi %r14,1
lpswe __LC_RETURN_PSW # branch to .Lsysc_per
LBEAR __LC_PGM_LAST_BREAK
LPSWEY __LC_RETURN_PSW,__LC_RETURN_LPSWE # branch to .Lsysc_per
ENDPROC(pgm_check_handler)
/*
@@ -422,6 +445,7 @@ ENDPROC(pgm_check_handler)
ENTRY(\name)
STCK __LC_INT_CLOCK
stpt __LC_SYS_ENTER_TIMER
STBEAR __LC_LAST_BREAK
BPOFF
stmg %r8,%r15,__LC_SAVE_AREA_ASYNC
lg %r12,__LC_CURRENT
@@ -453,6 +477,7 @@ ENTRY(\name)
xgr %r10,%r10
xc __PT_FLAGS(8,%r11),__PT_FLAGS(%r11)
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC
MBEAR %r11
stmg %r8,%r9,__PT_PSW(%r11)
tm %r8,0x0001 # coming from user space?
jno 1f
@@ -465,8 +490,9 @@ ENTRY(\name)
lctlg %c1,%c1,__LC_USER_ASCE
BPEXIT __TI_flags(%r12),_TIF_ISOLATE_BP
stpt __LC_EXIT_TIMER
2: lmg %r0,%r15,__PT_R0(%r11)
b __LC_RETURN_LPSWE
2: LBEAR __PT_LAST_BREAK(%r11)
lmg %r0,%r15,__PT_R0(%r11)
LPSWEY __LC_RETURN_PSW,__LC_RETURN_LPSWE
ENDPROC(\name)
.endm
@@ -505,6 +531,7 @@ ENTRY(mcck_int_handler)
BPOFF
la %r1,4095 # validate r1
spt __LC_CPU_TIMER_SAVE_AREA-4095(%r1) # validate cpu timer
LBEAR __LC_LAST_BREAK_SAVE_AREA-4095(%r1) # validate bear
lmg %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)# validate gprs
lg %r12,__LC_CURRENT
lmg %r8,%r9,__LC_MCK_OLD_PSW
@@ -591,8 +618,10 @@ ENTRY(mcck_int_handler)
jno 0f
BPEXIT __TI_flags(%r12),_TIF_ISOLATE_BP
stpt __LC_EXIT_TIMER
0: lmg %r11,%r15,__PT_R11(%r11)
b __LC_RETURN_MCCK_LPSWE
0: ALTERNATIVE "", __stringify(lghi %r12,__LC_LAST_BREAK_SAVE_AREA),193
LBEAR 0(%r12)
lmg %r11,%r15,__PT_R11(%r11)
LPSWEY __LC_RETURN_MCCK_PSW,__LC_RETURN_MCCK_LPSWE
.Lmcck_panic:
/*
arch/s390/kernel/entry.h
+1
View File
@@ -70,5 +70,6 @@ extern struct exception_table_entry _stop_amode31_ex_table[];
#define __amode31_data __section(".amode31.data")
#define __amode31_ref __section(".amode31.refs")
extern long _start_amode31_refs[], _end_amode31_refs[];
extern unsigned long __amode31_base;
#endif /* _ENTRY_H */
arch/s390/kernel/ftrace.c
+12 -84
View File
@@ -17,6 +17,7 @@
#include <linux/kprobes.h>
#include <trace/syscall.h>
#include <asm/asm-offsets.h>
#include <asm/text-patching.h>
#include <asm/cacheflush.h>
#include <asm/ftrace.lds.h>
#include <asm/nospec-branch.h>
@@ -80,17 +81,6 @@ asm(
#ifdef CONFIG_MODULES
static char *ftrace_plt;
asm(
" .data\n"
"ftrace_plt_template:\n"
" basr %r1,%r0\n"
" lg %r1,0f-.(%r1)\n"
" br %r1\n"
"0: .quad ftrace_caller\n"
"ftrace_plt_template_end:\n"
" .previous\n"
);
#endif /* CONFIG_MODULES */
static const char *ftrace_shared_hotpatch_trampoline(const char **end)
@@ -116,7 +106,7 @@ static const char *ftrace_shared_hotpatch_trampoline(const char **end)
bool ftrace_need_init_nop(void)
{
return ftrace_shared_hotpatch_trampoline(NULL);
return true;
}
int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec)
@@ -175,28 +165,6 @@ int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
return 0;
}
static void ftrace_generate_nop_insn(struct ftrace_insn *insn)
{
/* brcl 0,0 */
insn->opc = 0xc004;
insn->disp = 0;
}
static void ftrace_generate_call_insn(struct ftrace_insn *insn,
unsigned long ip)
{
unsigned long target;
/* brasl r0,ftrace_caller */
target = FTRACE_ADDR;
#ifdef CONFIG_MODULES
if (is_module_addr((void *)ip))
target = (unsigned long)ftrace_plt;
#endif /* CONFIG_MODULES */
insn->opc = 0xc005;
insn->disp = (target - ip) / 2;
}
static void brcl_disable(void *brcl)
{
u8 op = 0x04; /* set mask field to zero */
@@ -207,23 +175,7 @@ static void brcl_disable(void *brcl)
int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
unsigned long addr)
{
struct ftrace_insn orig, new, old;
if (ftrace_shared_hotpatch_trampoline(NULL)) {
brcl_disable((void *)rec->ip);
return 0;
}
if (copy_from_kernel_nofault(&old, (void *) rec->ip, sizeof(old)))
return -EFAULT;
/* Replace ftrace call with a nop. */
ftrace_generate_call_insn(&orig, rec->ip);
ftrace_generate_nop_insn(&new);
/* Verify that the to be replaced code matches what we expect. */
if (memcmp(&orig, &old, sizeof(old)))
return -EINVAL;
s390_kernel_write((void *) rec->ip, &new, sizeof(new));
brcl_disable((void *)rec->ip);
return 0;
}
@@ -236,23 +188,7 @@ static void brcl_enable(void *brcl)
int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
{
struct ftrace_insn orig, new, old;
if (ftrace_shared_hotpatch_trampoline(NULL)) {
brcl_enable((void *)rec->ip);
return 0;
}
if (copy_from_kernel_nofault(&old, (void *) rec->ip, sizeof(old)))
return -EFAULT;
/* Replace nop with an ftrace call. */
ftrace_generate_nop_insn(&orig);
ftrace_generate_call_insn(&new, rec->ip);
/* Verify that the to be replaced code matches what we expect. */
if (memcmp(&orig, &old, sizeof(old)))
return -EINVAL;
s390_kernel_write((void *) rec->ip, &new, sizeof(new));
brcl_enable((void *)rec->ip);
return 0;
}
@@ -264,22 +200,16 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
void arch_ftrace_update_code(int command)
{
if (ftrace_shared_hotpatch_trampoline(NULL))
ftrace_modify_all_code(command);
else
ftrace_run_stop_machine(command);
}
static void __ftrace_sync(void *dummy)
{
ftrace_modify_all_code(command);
}
int ftrace_arch_code_modify_post_process(void)
{
if (ftrace_shared_hotpatch_trampoline(NULL)) {
/* Send SIGP to the other CPUs, so they see the new code. */
smp_call_function(__ftrace_sync, NULL, 1);
}
/*
* Flush any pre-fetched instructions on all
* CPUs to make the new code visible.
*/
text_poke_sync_lock();
return 0;
}
@@ -294,10 +224,6 @@ static int __init ftrace_plt_init(void)
panic("cannot allocate ftrace plt\n");
start = ftrace_shared_hotpatch_trampoline(&end);
if (!start) {
start = ftrace_plt_template;
end = ftrace_plt_template_end;
}
memcpy(ftrace_plt, start, end - start);
set_memory_ro((unsigned long)ftrace_plt, 1);
return 0;
@@ -337,12 +263,14 @@ NOKPROBE_SYMBOL(prepare_ftrace_return);
int ftrace_enable_ftrace_graph_caller(void)
{
brcl_disable(ftrace_graph_caller);
text_poke_sync_lock();
return 0;
}
int ftrace_disable_ftrace_graph_caller(void)
{
brcl_enable(ftrace_graph_caller);
text_poke_sync_lock();
return 0;
}
arch/s390/kernel/head64.S
-18
View File
@@ -20,8 +20,6 @@ __HEAD
ENTRY(startup_continue)
larl %r1,tod_clock_base
mvc 0(16,%r1),__LC_BOOT_CLOCK
larl %r13,.LPG1 # get base
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
#
# Setup stack
#
@@ -42,19 +40,3 @@ ENTRY(startup_continue)
.align 16
.LPG1:
.Ldw: .quad 0x0002000180000000,0x0000000000000000
.Lctl: .quad 0x04040000 # cr0: AFP registers & secondary space
.quad 0 # cr1: primary space segment table
.quad 0 # cr2: dispatchable unit control table
.quad 0 # cr3: instruction authorization
.quad 0xffff # cr4: instruction authorization
.quad 0 # cr5: primary-aste origin
.quad 0 # cr6: I/O interrupts
.quad 0 # cr7: secondary space segment table
.quad 0x0000000000008000 # cr8: access registers translation
.quad 0 # cr9: tracing off
.quad 0 # cr10: tracing off
.quad 0 # cr11: tracing off
.quad 0 # cr12: tracing off
.quad 0 # cr13: home space segment table
.quad 0xc0000000 # cr14: machine check handling off
.quad 0 # cr15: linkage stack operations
arch/s390/kernel/irq.c
+8 -2
View File
@@ -140,8 +140,11 @@ void noinstr do_io_irq(struct pt_regs *regs)
irq_enter();
if (user_mode(regs))
if (user_mode(regs)) {
update_timer_sys();
if (static_branch_likely(&cpu_has_bear))
current->thread.last_break = regs->last_break;
}
from_idle = !user_mode(regs) && regs->psw.addr == (unsigned long)psw_idle_exit;
if (from_idle)
@@ -171,8 +174,11 @@ void noinstr do_ext_irq(struct pt_regs *regs)
irq_enter();
if (user_mode(regs))
if (user_mode(regs)) {
update_timer_sys();
if (static_branch_likely(&cpu_has_bear))
current->thread.last_break = regs->last_break;
}
regs->int_code = S390_lowcore.ext_int_code_addr;
regs->int_parm = S390_lowcore.ext_params;

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