UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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

drivers/net/ethernet/freescale/fec.h
  7d650df99d ("net: fec: add pm_qos support on imx6q platform")
  40c79ce13b ("net: fec: add stop mode support for imx8 platform")

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Paolo Abeni 2022-09-08 18:34:54 +02:00
parent 75554fe00f 26b1224903
commit 9f8f1933dc
340 changed files with 3325 additions and 1978 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/block/index.rst
View File

@ -23,3 +23,4 @@ Block
stat
switching-sched
writeback_cache_control
ublk

253
Documentation/block/ublk.rst Normal file
View File

@ -0,0 +1,253 @@
.. SPDX-License-Identifier: GPL-2.0
===========================================
Userspace block device driver (ublk driver)
===========================================
Overview
========
ublk is a generic framework for implementing block device logic from userspace.
The motivation behind it is that moving virtual block drivers into userspace,
such as loop, nbd and similar can be very helpful. It can help to implement
new virtual block device such as ublk-qcow2 (there are several attempts of
implementing qcow2 driver in kernel).
Userspace block devices are attractive because:
- They can be written many programming languages.
- They can use libraries that are not available in the kernel.
- They can be debugged with tools familiar to application developers.
- Crashes do not kernel panic the machine.
- Bugs are likely to have a lower security impact than bugs in kernel
code.
- They can be installed and updated independently of the kernel.
- They can be used to simulate block device easily with user specified
parameters/setting for test/debug purpose
ublk block device (``/dev/ublkb*``) is added by ublk driver. Any IO request
on the device will be forwarded to ublk userspace program. For convenience,
in this document, ``ublk server`` refers to generic ublk userspace
program. ``ublksrv`` [#userspace]_ is one of such implementation. It
provides ``libublksrv`` [#userspace_lib]_ library for developing specific
user block device conveniently, while also generic type block device is
included, such as loop and null. Richard W.M. Jones wrote userspace nbd device
``nbdublk`` [#userspace_nbdublk]_ based on ``libublksrv`` [#userspace_lib]_.
After the IO is handled by userspace, the result is committed back to the
driver, thus completing the request cycle. This way, any specific IO handling
logic is totally done by userspace, such as loop's IO handling, NBD's IO
communication, or qcow2's IO mapping.
``/dev/ublkb*`` is driven by blk-mq request-based driver. Each request is
assigned by one queue wide unique tag. ublk server assigns unique tag to each
IO too, which is 1:1 mapped with IO of ``/dev/ublkb*``.
Both the IO request forward and IO handling result committing are done via
``io_uring`` passthrough command; that is why ublk is also one io_uring based
block driver. It has been observed that using io_uring passthrough command can
give better IOPS than block IO; which is why ublk is one of high performance
implementation of userspace block device: not only IO request communication is
done by io_uring, but also the preferred IO handling in ublk server is io_uring
based approach too.
ublk provides control interface to set/get ublk block device parameters.
The interface is extendable and kabi compatible: basically any ublk request
queue's parameter or ublk generic feature parameters can be set/get via the
interface. Thus, ublk is generic userspace block device framework.
For example, it is easy to setup a ublk device with specified block
parameters from userspace.
Using ublk
==========
ublk requires userspace ublk server to handle real block device logic.
Below is example of using ``ublksrv`` to provide ublk-based loop device.
- add a device::
ublk add -t loop -f ublk-loop.img
- format with xfs, then use it::
mkfs.xfs /dev/ublkb0
mount /dev/ublkb0 /mnt
# do anything. all IOs are handled by io_uring
...
umount /mnt
- list the devices with their info::
ublk list
- delete the device::
ublk del -a
ublk del -n $ublk_dev_id
See usage details in README of ``ublksrv`` [#userspace_readme]_.
Design
======
Control plane
-------------
ublk driver provides global misc device node (``/dev/ublk-control``) for
managing and controlling ublk devices with help of several control commands:
- ``UBLK_CMD_ADD_DEV``
Add a ublk char device (``/dev/ublkc*``) which is talked with ublk server
WRT IO command communication. Basic device info is sent together with this
command. It sets UAPI structure of ``ublksrv_ctrl_dev_info``,
such as ``nr_hw_queues``, ``queue_depth``, and max IO request buffer size,
for which the info is negotiated with the driver and sent back to the server.
When this command is completed, the basic device info is immutable.
- ``UBLK_CMD_SET_PARAMS`` / ``UBLK_CMD_GET_PARAMS``
Set or get parameters of the device, which can be either generic feature
related, or request queue limit related, but can't be IO logic specific,
because the driver does not handle any IO logic. This command has to be
sent before sending ``UBLK_CMD_START_DEV``.
- ``UBLK_CMD_START_DEV``
After the server prepares userspace resources (such as creating per-queue
pthread & io_uring for handling ublk IO), this command is sent to the
driver for allocating & exposing ``/dev/ublkb*``. Parameters set via
``UBLK_CMD_SET_PARAMS`` are applied for creating the device.
- ``UBLK_CMD_STOP_DEV``
Halt IO on ``/dev/ublkb*`` and remove the device. When this command returns,
ublk server will release resources (such as destroying per-queue pthread &
io_uring).
- ``UBLK_CMD_DEL_DEV``
Remove ``/dev/ublkc*``. When this command returns, the allocated ublk device
number can be reused.
- ``UBLK_CMD_GET_QUEUE_AFFINITY``
When ``/dev/ublkc`` is added, the driver creates block layer tagset, so
that each queue's affinity info is available. The server sends
``UBLK_CMD_GET_QUEUE_AFFINITY`` to retrieve queue affinity info. It can
set up the per-queue context efficiently, such as bind affine CPUs with IO
pthread and try to allocate buffers in IO thread context.
- ``UBLK_CMD_GET_DEV_INFO``
For retrieving device info via ``ublksrv_ctrl_dev_info``. It is the server's
responsibility to save IO target specific info in userspace.
Data plane
----------
ublk server needs to create per-queue IO pthread & io_uring for handling IO
commands via io_uring passthrough. The per-queue IO pthread
focuses on IO handling and shouldn't handle any control & management
tasks.
The's IO is assigned by a unique tag, which is 1:1 mapping with IO
request of ``/dev/ublkb*``.
UAPI structure of ``ublksrv_io_desc`` is defined for describing each IO from
the driver. A fixed mmaped area (array) on ``/dev/ublkc*`` is provided for
exporting IO info to the server; such as IO offset, length, OP/flags and
buffer address. Each ``ublksrv_io_desc`` instance can be indexed via queue id
and IO tag directly.
The following IO commands are communicated via io_uring passthrough command,
and each command is only for forwarding the IO and committing the result
with specified IO tag in the command data:
- ``UBLK_IO_FETCH_REQ``
Sent from the server IO pthread for fetching future incoming IO requests
destined to ``/dev/ublkb*``. This command is sent only once from the server
IO pthread for ublk driver to setup IO forward environment.
- ``UBLK_IO_COMMIT_AND_FETCH_REQ``
When an IO request is destined to ``/dev/ublkb*``, the driver stores
the IO's ``ublksrv_io_desc`` to the specified mapped area; then the
previous received IO command of this IO tag (either ``UBLK_IO_FETCH_REQ``
or ``UBLK_IO_COMMIT_AND_FETCH_REQ)`` is completed, so the server gets
the IO notification via io_uring.
After the server handles the IO, its result is committed back to the
driver by sending ``UBLK_IO_COMMIT_AND_FETCH_REQ`` back. Once ublkdrv
received this command, it parses the result and complete the request to
``/dev/ublkb*``. In the meantime setup environment for fetching future
requests with the same IO tag. That is, ``UBLK_IO_COMMIT_AND_FETCH_REQ``
is reused for both fetching request and committing back IO result.
- ``UBLK_IO_NEED_GET_DATA``
With ``UBLK_F_NEED_GET_DATA`` enabled, the WRITE request will be firstly
issued to ublk server without data copy. Then, IO backend of ublk server
receives the request and it can allocate data buffer and embed its addr
inside this new io command. After the kernel driver gets the command,
data copy is done from request pages to this backend's buffer. Finally,
backend receives the request again with data to be written and it can
truly handle the request.
``UBLK_IO_NEED_GET_DATA`` adds one additional round-trip and one
io_uring_enter() syscall. Any user thinks that it may lower performance
should not enable UBLK_F_NEED_GET_DATA. ublk server pre-allocates IO
buffer for each IO by default. Any new project should try to use this
buffer to communicate with ublk driver. However, existing project may
break or not able to consume the new buffer interface; that's why this
command is added for backwards compatibility so that existing projects
can still consume existing buffers.
- data copy between ublk server IO buffer and ublk block IO request
The driver needs to copy the block IO request pages into the server buffer
(pages) first for WRITE before notifying the server of the coming IO, so
that the server can handle WRITE request.
When the server handles READ request and sends
``UBLK_IO_COMMIT_AND_FETCH_REQ`` to the server, ublkdrv needs to copy
the server buffer (pages) read to the IO request pages.
Future development
==================
Container-aware ublk deivice
----------------------------
ublk driver doesn't handle any IO logic. Its function is well defined
for now and very limited userspace interfaces are needed, which is also
well defined too. It is possible to make ublk devices container-aware block
devices in future as Stefan Hajnoczi suggested [#stefan]_, by removing
ADMIN privilege.
Zero copy
---------
Zero copy is a generic requirement for nbd, fuse or similar drivers. A
problem [#xiaoguang]_ Xiaoguang mentioned is that pages mapped to userspace
can't be remapped any more in kernel with existing mm interfaces. This can
occurs when destining direct IO to ``/dev/ublkb*``. Also, he reported that
big requests (IO size >= 256 KB) may benefit a lot from zero copy.
References
==========
.. [#userspace] https://github.com/ming1/ubdsrv
.. [#userspace_lib] https://github.com/ming1/ubdsrv/tree/master/lib
.. [#userspace_nbdublk] https://gitlab.com/rwmjones/libnbd/-/tree/nbdublk
.. [#userspace_readme] https://github.com/ming1/ubdsrv/blob/master/README
.. [#stefan] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/
.. [#xiaoguang] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/

2
Documentation/devicetree/bindings/iio/gyroscope/bosch,bmg160.yaml
View File

@ -24,8 +24,10 @@ properties:
interrupts:
minItems: 1
maxItems: 2
description:
Should be configured with type IRQ_TYPE_EDGE_RISING.
If two interrupts are provided, expected order is INT1 and INT2.
required:
- compatible

1
Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
View File

@ -16,6 +16,7 @@ properties:
compatible:
enum:
- goodix,gt1151
- goodix,gt1158
- goodix,gt5663
- goodix,gt5688
- goodix,gt911

1
Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
View File

@ -24,6 +24,7 @@ properties:
- mediatek,mt2712-mtu3
- mediatek,mt8173-mtu3
- mediatek,mt8183-mtu3
- mediatek,mt8188-mtu3
- mediatek,mt8192-mtu3
- mediatek,mt8195-mtu3
- const: mediatek,mtu3

6
Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
View File

@ -33,6 +33,7 @@ properties:
- qcom,sm6115-dwc3
- qcom,sm6125-dwc3
- qcom,sm6350-dwc3
- qcom,sm6375-dwc3
- qcom,sm8150-dwc3
- qcom,sm8250-dwc3
- qcom,sm8350-dwc3
@ -108,12 +109,17 @@ properties:
HS/FS/LS modes are supported.
type: boolean
wakeup-source: true
# Required child node:
patternProperties:
"^usb@[0-9a-f]+$":
$ref: snps,dwc3.yaml#
properties:
wakeup-source: false
required:
- compatible
- reg

1
Documentation/input/joydev/joystick.rst
View File

@ -517,6 +517,7 @@ All I-Force devices are supported by the iforce module. This includes:
* AVB Mag Turbo Force
* AVB Top Shot Pegasus
* AVB Top Shot Force Feedback Racing Wheel
* Boeder Force Feedback Wheel
* Logitech WingMan Force
* Logitech WingMan Force Wheel
* Guillemot Race Leader Force Feedback

11
Documentation/networking/rxrpc.rst
View File

@ -1055,17 +1055,6 @@ The kernel interface functions are as follows:
first function to change. Note that this must be called in TASK_RUNNING
state.
(#) Get reply timestamp::
bool rxrpc_kernel_get_reply_time(struct socket *sock,
struct rxrpc_call *call,
ktime_t *_ts)
This allows the timestamp on the first DATA packet of the reply of a
client call to be queried, provided that it is still in the Rx ring. If
successful, the timestamp will be stored into ``*_ts`` and true will be
returned; false will be returned otherwise.
(#) Get remote client epoch::
u32 rxrpc_kernel_get_epoch(struct socket *sock,

14
MAINTAINERS
View File

@ -10032,6 +10032,7 @@ F: Documentation/devicetree/bindings/input/
F: Documentation/devicetree/bindings/serio/
F: Documentation/input/
F: drivers/input/
F: include/dt-bindings/input/
F: include/linux/input.h
F: include/linux/input/
F: include/uapi/linux/input-event-codes.h
@ -17531,9 +17532,19 @@ M: Conor Dooley <conor.dooley@microchip.com>
M: Daire McNamara <daire.mcnamara@microchip.com>
L: linux-riscv@lists.infradead.org
S: Supported
F: Documentation/devicetree/bindings/clock/microchip,mpfs.yaml
F: Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
F: Documentation/devicetree/bindings/i2c/microchip,corei2c.yaml
F: Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
F: Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
F: Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml
F: Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
F: Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
F: Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
F: arch/riscv/boot/dts/microchip/
F: drivers/char/hw_random/mpfs-rng.c
F: drivers/clk/microchip/clk-mpfs.c
F: drivers/i2c/busses/i2c-microchip-core.c
F: drivers/mailbox/mailbox-mpfs.c
F: drivers/pci/controller/pcie-microchip-host.c
F: drivers/rtc/rtc-mpfs.c
@ -20764,6 +20775,7 @@ UBLK USERSPACE BLOCK DRIVER
M: Ming Lei <ming.lei@redhat.com>
L: linux-block@vger.kernel.org
S: Maintained
F: Documentation/block/ublk.rst
F: drivers/block/ublk_drv.c
F: include/uapi/linux/ublk_cmd.h
@ -22307,7 +22319,7 @@ M: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
R: Srinivas Neeli <srinivas.neeli@xilinx.com>
R: Michal Simek <michal.simek@xilinx.com>
S: Maintained
F: Documentation/devicetree/bindings/gpio/gpio-xilinx.txt
F: Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml
F: Documentation/devicetree/bindings/gpio/gpio-zynq.yaml
F: drivers/gpio/gpio-xilinx.c
F: drivers/gpio/gpio-zynq.c

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 6
PATCHLEVEL = 0
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc4
NAME = Hurr durr I'ma ninja sloth
# *DOCUMENTATION*

2
arch/arm/boot/dts/arm-realview-eb.dtsi
View File

@ -399,7 +399,7 @@
compatible = "arm,pl022", "arm,primecell";
reg = <0x1000d000 0x1000>;
clocks = <&sspclk>, <&pclk>;
clock-names = "SSPCLK", "apb_pclk";
clock-names = "sspclk", "apb_pclk";
};
wdog: watchdog@10010000 {

2
arch/arm/boot/dts/arm-realview-pb1176.dts
View File

@ -410,7 +410,7 @@
interrupt-parent = <&intc_dc1176>;
interrupts = <0 17 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&sspclk>, <&pclk>;
clock-names = "SSPCLK", "apb_pclk";
clock-names = "sspclk", "apb_pclk";
};
pb1176_serial0: serial@1010c000 {

2
arch/arm/boot/dts/arm-realview-pb11mp.dts
View File

@ -555,7 +555,7 @@
interrupt-parent = <&intc_pb11mp>;
interrupts = <0 11 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&sspclk>, <&pclk>;
clock-names = "SSPCLK", "apb_pclk";
clock-names = "sspclk", "apb_pclk";
};
watchdog@1000f000 {

2
arch/arm/boot/dts/arm-realview-pbx.dtsi
View File

@ -390,7 +390,7 @@
compatible = "arm,pl022", "arm,primecell";
reg = <0x1000d000 0x1000>;
clocks = <&sspclk>, <&pclk>;
clock-names = "SSPCLK", "apb_pclk";
clock-names = "sspclk", "apb_pclk";
};
wdog0: watchdog@1000f000 {

21
arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
View File

@ -76,8 +76,8 @@
regulators {
vdd_3v3: VDD_IO {
regulator-name = "VDD_IO";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -95,8 +95,8 @@
vddio_ddr: VDD_DDR {
regulator-name = "VDD_DDR";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <1850000>;
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -118,8 +118,8 @@
vdd_core: VDD_CORE {
regulator-name = "VDD_CORE";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <1850000>;
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <1250000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -160,8 +160,8 @@
LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-state-standby {
@ -175,9 +175,8 @@
LDO2 {
regulator-name = "LDO2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-always-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-state-standby {
regulator-on-in-suspend;

21
arch/arm/boot/dts/at91-sama5d2_icp.dts
View File

@ -196,8 +196,8 @@
regulators {
vdd_io_reg: VDD_IO {
regulator-name = "VDD_IO";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -215,8 +215,8 @@
VDD_DDR {
regulator-name = "VDD_DDR";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <1850000>;
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -234,8 +234,8 @@
VDD_CORE {
regulator-name = "VDD_CORE";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <1850000>;
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <1250000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -257,7 +257,6 @@
regulator-max-microvolt = <1850000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
regulator-state-standby {
regulator-on-in-suspend;
@ -272,8 +271,8 @@
LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-always-on;
regulator-state-standby {
@ -287,8 +286,8 @@
LDO2 {
regulator-name = "LDO2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-state-standby {

18
arch/arm/boot/dts/at91-sama7g5ek.dts
View File

@ -244,8 +244,8 @@
regulators {
vdd_3v3: VDD_IO {
regulator-name = "VDD_IO";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -264,8 +264,8 @@
vddioddr: VDD_DDR {
regulator-name = "VDD_DDR";
regulator-min-microvolt = <1300000>;
regulator-max-microvolt = <1450000>;
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -285,8 +285,8 @@
vddcore: VDD_CORE {
regulator-name = "VDD_CORE";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1850000>;
regulator-min-microvolt = <1150000>;
regulator-max-microvolt = <1150000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
@ -306,7 +306,7 @@
vddcpu: VDD_OTHER {
regulator-name = "VDD_OTHER";
regulator-min-microvolt = <1050000>;
regulator-max-microvolt = <1850000>;
regulator-max-microvolt = <1250000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-ramp-delay = <3125>;
@ -326,8 +326,8 @@
vldo1: LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3700000>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-state-standby {

20
arch/arm/boot/dts/bcm63178.dtsi
View File

@ -32,6 +32,7 @@
next-level-cache = <&L2_0>;
enable-method = "psci";
};
CA7_2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a7";
@ -39,6 +40,7 @@
next-level-cache = <&L2_0>;
enable-method = "psci";
};
L2_0: l2-cache0 {
compatible = "cache";
};
@ -46,10 +48,10 @@
timer {
compatible = "arm,armv7-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(3) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(3) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(3) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(3) | IRQ_TYPE_LEVEL_LOW)>;
arm,cpu-registers-not-fw-configured;
};
@ -80,23 +82,23 @@
psci {
compatible = "arm,psci-0.2";
method = "smc";
cpu_off = <1>;
cpu_on = <2>;
};
axi@81000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x81000000 0x4000>;
ranges = <0 0x81000000 0x8000>;
gic: interrupt-controller@1000 {
compatible = "arm,cortex-a7-gic";
#interrupt-cells = <3>;
#address-cells = <0>;
interrupt-controller;
interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(3) | IRQ_TYPE_LEVEL_HIGH)>;
reg = <0x1000 0x1000>,
<0x2000 0x2000>;
<0x2000 0x2000>,
<0x4000 0x2000>,
<0x6000 0x2000>;
};
};

18
arch/arm/boot/dts/bcm6846.dtsi
View File

@ -40,10 +40,10 @@
timer {
compatible = "arm,armv7-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
arm,cpu-registers-not-fw-configured;
};
@ -65,23 +65,23 @@
psci {
compatible = "arm,psci-0.2";
method = "smc";
cpu_off = <1>;
cpu_on = <2>;
};
axi@81000000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x81000000 0x4000>;
ranges = <0 0x81000000 0x8000>;
gic: interrupt-controller@1000 {
compatible = "arm,cortex-a7-gic";
#interrupt-cells = <3>;
#address-cells = <0>;
interrupt-controller;
interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
reg = <0x1000 0x1000>,
<0x2000 0x2000>;
<0x2000 0x2000>,
<0x4000 0x2000>,
<0x6000 0x2000>;
};
};

9
arch/arm/boot/dts/bcm6878.dtsi
View File

@ -32,6 +32,7 @@
next-level-cache = <&L2_0>;
enable-method = "psci";
};
L2_0: l2-cache0 {
compatible = "cache";
};
@ -39,10 +40,10 @@
timer {
compatible = "arm,armv7-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
arm,cpu-registers-not-fw-configured;
};

12
arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi
View File

@ -51,16 +51,6 @@
vin-supply = <&reg_3p3v_s5>;
};
reg_3p3v_s0: regulator-3p3v-s0 {
compatible = "regulator-fixed";
regulator-name = "V_3V3_S0";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
vin-supply = <&reg_3p3v_s5>;
};
reg_3p3v_s5: regulator-3p3v-s5 {
compatible = "regulator-fixed";
regulator-name = "V_3V3_S5";
@ -259,7 +249,7 @@
/* default boot source: workaround #1 for errata ERR006282 */
smarc_flash: flash@0 {
compatible = "winbond,w25q16dw", "jedec,spi-nor";
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <20000000>;
};

2
arch/arm/boot/dts/imx6qdl-vicut1.dtsi
View File

@ -28,7 +28,7 @@
enable-gpios = <&gpio4 28 GPIO_ACTIVE_HIGH>;
};
backlight_led: backlight_led {
backlight_led: backlight-led {
compatible = "pwm-backlight";
pwms = <&pwm3 0 5000000 0>;
brightness-levels = <0 16 64 255>;

4
arch/arm/boot/dts/integratorap-im-pd1.dts
View File

@ -178,12 +178,12 @@
clock-names = "uartclk", "apb_pclk";
};
ssp@300000 {
spi@300000 {
compatible = "arm,pl022", "arm,primecell";
reg = <0x00300000 0x1000>;
interrupts-extended = <&impd1_vic 3>;
clocks = <&impd1_sspclk>, <&sysclk>;
clock-names = "spiclk", "apb_pclk";
clock-names = "sspclk", "apb_pclk";
};
impd1_gpio0: gpio@400000 {

2
arch/arm/boot/dts/versatile-ab.dts
View File

@ -391,7 +391,7 @@
reg = <0x101f4000 0x1000>;
interrupts = <11>;
clocks = <&xtal24mhz>, <&pclk>;
clock-names = "SSPCLK", "apb_pclk";
clock-names = "sspclk", "apb_pclk";
};
fpga {

1
arch/arm/configs/at91_dt_defconfig
View File

@ -196,7 +196,6 @@ CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_DMADEVICES=y
CONFIG_AT_HDMAC=y
CONFIG_AT_XDMAC=y
CONFIG_MICROCHIP_PIT64B=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_IIO=y
CONFIG_AT91_ADC=y

1
arch/arm/configs/sama7_defconfig
View File

@ -188,7 +188,6 @@ CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_DMADEVICES=y
CONFIG_AT_XDMAC=y
CONFIG_STAGING=y
CONFIG_MICROCHIP_PIT64B=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_IIO=y
CONFIG_IIO_SW_TRIGGER=y

36
arch/arm/mach-at91/pm.c
View File

@ -541,9 +541,41 @@ extern u32 at91_pm_suspend_in_sram_sz;
static int at91_suspend_finish(unsigned long val)
{
unsigned char modified_gray_code[] = {
0x00, 0x01, 0x02, 0x03, 0x06, 0x07, 0x04, 0x05, 0x0c, 0x0d,
0x0e, 0x0f, 0x0a, 0x0b, 0x08, 0x09, 0x18, 0x19, 0x1a, 0x1b,
0x1e, 0x1f, 0x1c, 0x1d, 0x14, 0x15, 0x16, 0x17, 0x12, 0x13,
0x10, 0x11,
};
unsigned int tmp, index;
int i;
if (soc_pm.data.mode == AT91_PM_BACKUP && soc_pm.data.ramc_phy) {
/*
* Bootloader will perform DDR recalibration and will try to
* restore the ZQ0SR0 with the value saved here. But the
* calibration is buggy and restoring some values from ZQ0SR0
* is forbidden and risky thus we need to provide processed
* values for these (modified gray code values).
*/
tmp = readl(soc_pm.data.ramc_phy + DDR3PHY_ZQ0SR0);
/* Store pull-down output impedance select. */
index = (tmp >> DDR3PHY_ZQ0SR0_PDO_OFF) & 0x1f;
soc_pm.bu->ddr_phy_calibration[0] = modified_gray_code[index];
/* Store pull-up output impedance select. */
index = (tmp >> DDR3PHY_ZQ0SR0_PUO_OFF) & 0x1f;
soc_pm.bu->ddr_phy_calibration[0] |= modified_gray_code[index];
/* Store pull-down on-die termination impedance select. */
index = (tmp >> DDR3PHY_ZQ0SR0_PDODT_OFF) & 0x1f;
soc_pm.bu->ddr_phy_calibration[0] |= modified_gray_code[index];
/* Store pull-up on-die termination impedance select. */
index = (tmp >> DDR3PHY_ZQ0SRO_PUODT_OFF) & 0x1f;
soc_pm.bu->ddr_phy_calibration[0] |= modified_gray_code[index];
/*
* The 1st 8 words of memory might get corrupted in the process
* of DDR PHY recalibration; it is saved here in securam and it
@ -1066,10 +1098,6 @@ static int __init at91_pm_backup_init(void)
of_scan_flat_dt(at91_pm_backup_scan_memcs, &located);
if (!located)
goto securam_fail;
/* DDR3PHY_ZQ0SR0 */
soc_pm.bu->ddr_phy_calibration[0] = readl(soc_pm.data.ramc_phy +
0x188);
}
return 0;

24
arch/arm/mach-at91/pm_suspend.S
View File

@ -172,9 +172,15 @@ sr_ena_2:
/* Put DDR PHY's DLL in bypass mode for non-backup modes. */
cmp r7, #AT91_PM_BACKUP
beq sr_ena_3
ldr tmp1, [r3, #DDR3PHY_PIR]
orr tmp1, tmp1, #DDR3PHY_PIR_DLLBYP
str tmp1, [r3, #DDR3PHY_PIR]
/* Disable DX DLLs. */
ldr tmp1, [r3, #DDR3PHY_DX0DLLCR]
orr tmp1, tmp1, #DDR3PHY_DXDLLCR_DLLDIS
str tmp1, [r3, #DDR3PHY_DX0DLLCR]
ldr tmp1, [r3, #DDR3PHY_DX1DLLCR]
orr tmp1, tmp1, #DDR3PHY_DXDLLCR_DLLDIS
str tmp1, [r3, #DDR3PHY_DX1DLLCR]
sr_ena_3:
/* Power down DDR PHY data receivers. */
@ -221,10 +227,14 @@ sr_ena_3:
bic tmp1, tmp1, #DDR3PHY_DSGCR_ODTPDD_ODT0
str tmp1, [r3, #DDR3PHY_DSGCR]
/* Take DDR PHY's DLL out of bypass mode. */
ldr tmp1, [r3, #DDR3PHY_PIR]
bic tmp1, tmp1, #DDR3PHY_PIR_DLLBYP
str tmp1, [r3, #DDR3PHY_PIR]
/* Enable DX DLLs. */
ldr tmp1, [r3, #DDR3PHY_DX0DLLCR]
bic tmp1, tmp1, #DDR3PHY_DXDLLCR_DLLDIS
str tmp1, [r3, #DDR3PHY_DX0DLLCR]
ldr tmp1, [r3, #DDR3PHY_DX1DLLCR]
bic tmp1, tmp1, #DDR3PHY_DXDLLCR_DLLDIS
str tmp1, [r3, #DDR3PHY_DX1DLLCR]
/* Enable quasi-dynamic programming. */
mov tmp1, #0

2
arch/arm/mach-ixp4xx/ixp4xx-of.c
View File

@ -46,7 +46,7 @@ static void __init ixp4xx_of_map_io(void)
}
/*
* We handle 4 differen SoC families. These compatible strings are enough
* We handle 4 different SoC families. These compatible strings are enough
* to provide the core so that different boards can add their more detailed
* specifics.
*/

3
arch/arm64/boot/dts/arm/juno-base.dtsi
View File

@ -26,7 +26,8 @@
compatible = "arm,mhu", "arm,primecell";
reg = <0x0 0x2b1f0000 0x0 0x1000>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
<GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <1>;
clocks = <&soc_refclk100mhz>;
clock-names = "apb_pclk";

2
arch/arm64/boot/dts/arm/juno-cs-r1r2.dtsi
View File

@ -67,7 +67,6 @@
port@0 {
reg = <0>;
csys2_funnel_in_port0: endpoint {
slave-mode;
remote-endpoint = <&etf0_out_port>;
};
};
@ -75,7 +74,6 @@
port@1 {
reg = <1>;
csys2_funnel_in_port1: endpoint {
slave-mode;
remote-endpoint = <&etf1_out_port>;
};
};

1
arch/arm64/boot/dts/freescale/fsl-ls1028a-qds-65bb.dts
View File

@ -25,7 +25,6 @@
&enetc_port0 {
phy-handle = <&slot1_sgmii>;
phy-mode = "2500base-x";
managed = "in-band-status";
status = "okay";
};

4
arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts
View File

@ -626,24 +626,28 @@
lan1: port@0 {
reg = <0>;
label = "lan1";
phy-mode = "internal";
local-mac-address = [00 00 00 00 00 00];
};
lan2: port@1 {
reg = <1>;
label = "lan2";
phy-mode = "internal";
local-mac-address = [00 00 00 00 00 00];
};
lan3: port@2 {
reg = <2>;
label = "lan3";
phy-mode = "internal";
local-mac-address = [00 00 00 00 00 00];
};
lan4: port@3 {
reg = <3>;
label = "lan4";
phy-mode = "internal";
local-mac-address = [00 00 00 00 00 00];
};

11
arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
View File

@ -32,10 +32,10 @@
};
/* Fixed clock dedicated to SPI CAN controller */
clk20m: oscillator {
clk40m: oscillator {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <20000000>;
clock-frequency = <40000000>;
};
gpio-keys {
@ -202,8 +202,8 @@
can1: can@0 {
compatible = "microchip,mcp251xfd";
clocks = <&clk20m>;
interrupts-extended = <&gpio1 6 IRQ_TYPE_EDGE_FALLING>;
clocks = <&clk40m>;
interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_can1_int>;
reg = <0>;
@ -603,7 +603,7 @@
pinctrl-0 = <&pinctrl_gpio_9_dsi>, <&pinctrl_i2s_2_bclk_touch_reset>;
reg = <0x4a>;
/* Verdin I2S_2_BCLK (TOUCH_RESET#, SODIMM 42) */
reset-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
status = "disabled";
};
@ -745,6 +745,7 @@
};
&usbphynop2 {
power-domains = <&pgc_otg2>;
vcc-supply = <&reg_vdd_3v3>;
};

14
arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
View File

@ -70,7 +70,7 @@
&ecspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1>;
cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
cs-gpios = <&gpio5 17 GPIO_ACTIVE_LOW>;
status = "disabled";
};
@ -403,8 +403,8 @@
pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c5>;
pinctrl-1 = <&pinctrl_i2c5_gpio>;
scl-gpios = <&gpio5 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&gpio5 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
scl-gpios = <&gpio3 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&gpio3 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
status = "okay";
};
@ -648,10 +648,10 @@
pinctrl_ecspi1: dhcom-ecspi1-grp {
fsl,pins = <
MX8MP_IOMUXC_ECSPI1_SCLK__ECSPI1_SCLK 0x44
MX8MP_IOMUXC_ECSPI1_MOSI__ECSPI1_MOSI 0x44
MX8MP_IOMUXC_ECSPI1_MISO__ECSPI1_MISO 0x44
MX8MP_IOMUXC_ECSPI1_SS0__GPIO5_IO09 0x40
MX8MP_IOMUXC_I2C1_SCL__ECSPI1_SCLK 0x44
MX8MP_IOMUXC_I2C1_SDA__ECSPI1_MOSI 0x44
MX8MP_IOMUXC_I2C2_SCL__ECSPI1_MISO 0x44
MX8MP_IOMUXC_I2C2_SDA__GPIO5_IO17 0x40
>;
};

8
arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
View File

@ -770,10 +770,10 @@
pinctrl_sai2: sai2grp {
fsl,pins = <
MX8MP_IOMUXC_SAI2_TXFS__AUDIOMIX_SAI2_TX_SYNC
MX8MP_IOMUXC_SAI2_TXD0__AUDIOMIX_SAI2_TX_DATA00
MX8MP_IOMUXC_SAI2_TXC__AUDIOMIX_SAI2_TX_BCLK
MX8MP_IOMUXC_SAI2_MCLK__AUDIOMIX_SAI2_MCLK
MX8MP_IOMUXC_SAI2_TXFS__AUDIOMIX_SAI2_TX_SYNC 0xd6
MX8MP_IOMUXC_SAI2_TXD0__AUDIOMIX_SAI2_TX_DATA00 0xd6
MX8MP_IOMUXC_SAI2_TXC__AUDIOMIX_SAI2_TX_BCLK 0xd6
MX8MP_IOMUXC_SAI2_MCLK__AUDIOMIX_SAI2_MCLK 0xd6
>;
};

4
arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
View File

@ -628,7 +628,7 @@
interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
reg = <0x4a>;
/* Verdin GPIO_2 (SODIMM 208) */
reset-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
status = "disabled";
};
};
@ -705,7 +705,7 @@
pinctrl-0 = <&pinctrl_gpio_9_dsi>, <&pinctrl_i2s_2_bclk_touch_reset>;
reg = <0x4a>;
/* Verdin I2S_2_BCLK (TOUCH_RESET#, SODIMM 42) */
reset-gpios = <&gpio5 0 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
status = "disabled";
};

1
arch/arm64/boot/dts/freescale/imx8mq-tqma8mq.dtsi
View File

@ -204,7 +204,6 @@
reg = <0x51>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rtc>;
interrupt-names = "irq";
interrupt-parent = <&gpio1>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
quartz-load-femtofarads = <7000>;

2
arch/arm64/boot/dts/renesas/r8a779g0.dtsi
View File

@ -85,7 +85,7 @@
"renesas,rcar-gen4-hscif",
"renesas,hscif";
reg = <0 0xe6540000 0 96>;
interrupts = <GIC_SPI 245 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 514>,
<&cpg CPG_CORE R8A779G0_CLK_S0D3_PER>,
<&scif_clk>;

26
arch/arm64/include/asm/kernel-pgtable.h
View File

@ -64,28 +64,28 @@
#define EARLY_KASLR (0)
#endif
#define EARLY_ENTRIES(vstart, vend, shift) \
((((vend) - 1) >> (shift)) - ((vstart) >> (shift)) + 1 + EARLY_KASLR)
#define EARLY_ENTRIES(vstart, vend, shift, add) \
((((vend) - 1) >> (shift)) - ((vstart) >> (shift)) + 1 + add)
#define EARLY_PGDS(vstart, vend) (EARLY_ENTRIES(vstart, vend, PGDIR_SHIFT))
#define EARLY_PGDS(vstart, vend, add) (EARLY_ENTRIES(vstart, vend, PGDIR_SHIFT, add))
#if SWAPPER_PGTABLE_LEVELS > 3
#define EARLY_PUDS(vstart, vend) (EARLY_ENTRIES(vstart, vend, PUD_SHIFT))
#define EARLY_PUDS(vstart, vend, add) (EARLY_ENTRIES(vstart, vend, PUD_SHIFT, add))
#else
#define EARLY_PUDS(vstart, vend) (0)
#define EARLY_PUDS(vstart, vend, add) (0)
#endif
#if SWAPPER_PGTABLE_LEVELS > 2
#define EARLY_PMDS(vstart, vend) (EARLY_ENTRIES(vstart, vend, SWAPPER_TABLE_SHIFT))
#define EARLY_PMDS(vstart, vend, add) (EARLY_ENTRIES(vstart, vend, SWAPPER_TABLE_SHIFT, add))
#else
#define EARLY_PMDS(vstart, vend) (0)
#define EARLY_PMDS(vstart, vend, add) (0)
#endif
#define EARLY_PAGES(vstart, vend) ( 1 /* PGDIR page */ \
+ EARLY_PGDS((vstart), (vend)) /* each PGDIR needs a next level page table */ \
+ EARLY_PUDS((vstart), (vend)) /* each PUD needs a next level page table */ \
+ EARLY_PMDS((vstart), (vend))) /* each PMD needs a next level page table */
#define INIT_DIR_SIZE (PAGE_SIZE * EARLY_PAGES(KIMAGE_VADDR, _end))
#define EARLY_PAGES(vstart, vend, add) ( 1 /* PGDIR page */ \
+ EARLY_PGDS((vstart), (vend), add) /* each PGDIR needs a next level page table */ \
+ EARLY_PUDS((vstart), (vend), add) /* each PUD needs a next level page table */ \
+ EARLY_PMDS((vstart), (vend), add)) /* each PMD needs a next level page table */
#define INIT_DIR_SIZE (PAGE_SIZE * EARLY_PAGES(KIMAGE_VADDR, _end, EARLY_KASLR))
/* the initial ID map may need two extra pages if it needs to be extended */
#if VA_BITS < 48
@ -93,7 +93,7 @@
#else
#define INIT_IDMAP_DIR_SIZE (INIT_IDMAP_DIR_PAGES * PAGE_SIZE)
#endif
#define INIT_IDMAP_DIR_PAGES EARLY_PAGES(KIMAGE_VADDR, _end + MAX_FDT_SIZE + SWAPPER_BLOCK_SIZE)
#define INIT_IDMAP_DIR_PAGES EARLY_PAGES(KIMAGE_VADDR, _end + MAX_FDT_SIZE + SWAPPER_BLOCK_SIZE, 1)
/* Initial memory map size */
#if ARM64_KERNEL_USES_PMD_MAPS

2
arch/arm64/kernel/head.S
View File

@ -371,7 +371,9 @@ SYM_FUNC_END(create_idmap)
SYM_FUNC_START_LOCAL(create_kernel_mapping)
adrp x0, init_pg_dir
mov_q x5, KIMAGE_VADDR // compile time __va(_text)
#ifdef CONFIG_RELOCATABLE
add x5, x5, x23 // add KASLR displacement
#endif
adrp x6, _end // runtime __pa(_end)
adrp x3, _text // runtime __pa(_text)
sub x6, x6, x3 // _end - _text

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

@ -47,7 +47,7 @@ static int prepare_elf_headers(void **addr, unsigned long *sz)
u64 i;
phys_addr_t start, end;
nr_ranges = 1; /* for exclusion of crashkernel region */
nr_ranges = 2; /* for exclusion of crashkernel region */
for_each_mem_range(i, &start, &end)
nr_ranges++;

2
arch/loongarch/Kconfig
View File

@ -39,6 +39,7 @@ config LOONGARCH
select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION
select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION
select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION
select ARCH_KEEP_MEMBLOCK
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ARCH_SPARSEMEM_ENABLE
@ -51,6 +52,7 @@ config LOONGARCH
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_USE_QUEUED_RWLOCKS
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
select ARCH_WANT_LD_ORPHAN_WARN
select ARCH_WANTS_NO_INSTR
select BUILDTIME_TABLE_SORT
select COMMON_CLK

2
arch/loongarch/include/asm/acpi.h
View File

@ -15,7 +15,7 @@ extern int acpi_pci_disabled;
extern int acpi_noirq;
#define acpi_os_ioremap acpi_os_ioremap
void __init __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
static inline void disable_acpi(void)
{

2
arch/loongarch/kernel/acpi.c
View File

@ -48,7 +48,7 @@ void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
early_memunmap(map, size);
}
void __init __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
{
if (!memblock_is_memory(phys))
return ioremap(phys, size);

4
arch/loongarch/kernel/signal.c
View File

@ -529,11 +529,11 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
signal_setup_done(ret, ksig, 0);
}
void arch_do_signal_or_restart(struct pt_regs *regs, bool has_signal)
void arch_do_signal_or_restart(struct pt_regs *regs)
{
struct ksignal ksig;
if (has_signal && get_signal(&ksig)) {
if (get_signal(&ksig)) {
/* Whee! Actually deliver the signal. */
handle_signal(&ksig, regs);
return;

2
arch/loongarch/kernel/vmlinux.lds.S
View File

@ -77,6 +77,8 @@ SECTIONS
PERCPU_SECTION(1 << CONFIG_L1_CACHE_SHIFT)
#endif
.rela.dyn : ALIGN(8) { *(.rela.dyn) *(.rela*) }
.init.bss : {
*(.init.bss)
}

26
arch/loongarch/lib/dump_tlb.c
View File

@ -18,11 +18,11 @@ void dump_tlb_regs(void)
{
const int field = 2 * sizeof(unsigned long);
pr_info("Index : %0x\n", read_csr_tlbidx());
pr_info("PageSize : %0x\n", read_csr_pagesize());
pr_info("EntryHi : %0*llx\n", field, read_csr_entryhi());
pr_info("EntryLo0 : %0*llx\n", field, read_csr_entrylo0());
pr_info("EntryLo1 : %0*llx\n", field, read_csr_entrylo1());
pr_info("Index : 0x%0x\n", read_csr_tlbidx());
pr_info("PageSize : 0x%0x\n", read_csr_pagesize());
pr_info("EntryHi : 0x%0*llx\n", field, read_csr_entryhi());
pr_info("EntryLo0 : 0x%0*llx\n", field, read_csr_entrylo0());
pr_info("EntryLo1 : 0x%0*llx\n", field, read_csr_entrylo1());
}
static void dump_tlb(int first, int last)
@ -33,8 +33,8 @@ static void dump_tlb(int first, int last)
unsigned int s_index, s_asid;
unsigned int pagesize, c0, c1, i;
unsigned long asidmask = cpu_asid_mask(&current_cpu_data);
int pwidth = 11;
int vwidth = 11;
int pwidth = 16;
int vwidth = 16;
int asidwidth = DIV_ROUND_UP(ilog2(asidmask) + 1, 4);
s_entryhi = read_csr_entryhi();
@ -64,22 +64,22 @@ static void dump_tlb(int first, int last)
/*
* Only print entries in use
*/
pr_info("Index: %2d pgsize=%x ", i, (1 << pagesize));
pr_info("Index: %4d pgsize=0x%x ", i, (1 << pagesize));
c0 = (entrylo0 & ENTRYLO_C) >> ENTRYLO_C_SHIFT;
c1 = (entrylo1 & ENTRYLO_C) >> ENTRYLO_C_SHIFT;
pr_cont("va=%0*lx asid=%0*lx",
pr_cont("va=0x%0*lx asid=0x%0*lx",
vwidth, (entryhi & ~0x1fffUL), asidwidth, asid & asidmask);
/* NR/NX are in awkward places, so mask them off separately */
pa = entrylo0 & ~(ENTRYLO_NR | ENTRYLO_NX);
pa = pa & PAGE_MASK;
pr_cont("\n\t[");
pr_cont("ri=%d xi=%d ",
pr_cont("nr=%d nx=%d ",
(entrylo0 & ENTRYLO_NR) ? 1 : 0,
(entrylo0 & ENTRYLO_NX) ? 1 : 0);
pr_cont("pa=%0*llx c=%d d=%d v=%d g=%d plv=%lld] [",
pr_cont("pa=0x%0*llx c=%d d=%d v=%d g=%d plv=%lld] [",
pwidth, pa, c0,
(entrylo0 & ENTRYLO_D) ? 1 : 0,
(entrylo0 & ENTRYLO_V) ? 1 : 0,
@ -88,10 +88,10 @@ static void dump_tlb(int first, int last)
/* NR/NX are in awkward places, so mask them off separately */
pa = entrylo1 & ~(ENTRYLO_NR | ENTRYLO_NX);
pa = pa & PAGE_MASK;
pr_cont("ri=%d xi=%d ",
pr_cont("nr=%d nx=%d ",
(entrylo1 & ENTRYLO_NR) ? 1 : 0,
(entrylo1 & ENTRYLO_NX) ? 1 : 0);
pr_cont("pa=%0*llx c=%d d=%d v=%d g=%d plv=%lld]\n",
pr_cont("pa=0x%0*llx c=%d d=%d v=%d g=%d plv=%lld]\n",
pwidth, pa, c1,
(entrylo1 & ENTRYLO_D) ? 1 : 0,
(entrylo1 & ENTRYLO_V) ? 1 : 0,

19
arch/loongarch/mm/init.c
View File

@ -131,18 +131,6 @@ int arch_add_memory(int nid, u64 start, u64 size, struct mhp_params *params)
return ret;
}
#ifdef CONFIG_NUMA
int memory_add_physaddr_to_nid(u64 start)
{
int nid;
nid = pa_to_nid(start);
return nid;
}
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
#ifdef CONFIG_MEMORY_HOTREMOVE
void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
@ -154,6 +142,13 @@ void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
page += vmem_altmap_offset(altmap);
__remove_pages(start_pfn, nr_pages, altmap);
}
#ifdef CONFIG_NUMA
int memory_add_physaddr_to_nid(u64 start)
{
return pa_to_nid(start);
}
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
#endif

8
arch/powerpc/include/asm/firmware.h
View File

@ -83,6 +83,8 @@ enum {
FW_FEATURE_POWERNV_ALWAYS = 0,
FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
FW_FEATURE_NATIVE_POSSIBLE = 0,
FW_FEATURE_NATIVE_ALWAYS = 0,
FW_FEATURE_POSSIBLE =
#ifdef CONFIG_PPC_PSERIES
FW_FEATURE_PSERIES_POSSIBLE |
@ -92,6 +94,9 @@ enum {
#endif
#ifdef CONFIG_PPC_PS3
FW_FEATURE_PS3_POSSIBLE |
#endif
#ifdef CONFIG_PPC_HASH_MMU_NATIVE
FW_FEATURE_NATIVE_ALWAYS |
#endif
0,
FW_FEATURE_ALWAYS =
@ -103,6 +108,9 @@ enum {
#endif
#ifdef CONFIG_PPC_PS3
FW_FEATURE_PS3_ALWAYS &
#endif
#ifdef CONFIG_PPC_HASH_MMU_NATIVE
FW_FEATURE_NATIVE_ALWAYS &
#endif
FW_FEATURE_POSSIBLE,

46
arch/powerpc/include/asm/hw_irq.h
View File

@ -113,7 +113,14 @@ static inline void __hard_RI_enable(void)
static inline notrace unsigned long irq_soft_mask_return(void)
{
return READ_ONCE(local_paca->irq_soft_mask);
unsigned long flags;
asm volatile(
"lbz %0,%1(13)"
: "=r" (flags)
: "i" (offsetof(struct paca_struct, irq_soft_mask)));
return flags;
}
/*
@ -140,24 +147,46 @@ static inline notrace void irq_soft_mask_set(unsigned long mask)
if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
WARN_ON(mask && !(mask & IRQS_DISABLED));
WRITE_ONCE(local_paca->irq_soft_mask, mask);
barrier();
asm volatile(
"stb %0,%1(13)"
:
: "r" (mask),
"i" (offsetof(struct paca_struct, irq_soft_mask))
: "memory");
}
static inline notrace unsigned long irq_soft_mask_set_return(unsigned long mask)
{
unsigned long flags = irq_soft_mask_return();
unsigned long flags;
irq_soft_mask_set(mask);
#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
WARN_ON(mask && !(mask & IRQS_DISABLED));
#endif
asm volatile(
"lbz %0,%1(13); stb %2,%1(13)"
: "=&r" (flags)
: "i" (offsetof(struct paca_struct, irq_soft_mask)),
"r" (mask)
: "memory");
return flags;
}
static inline notrace unsigned long irq_soft_mask_or_return(unsigned long mask)
{
unsigned long flags = irq_soft_mask_return();
unsigned long flags, tmp;
irq_soft_mask_set(flags | mask);
asm volatile(
"lbz %0,%2(13); or %1,%0,%3; stb %1,%2(13)"
: "=&r" (flags), "=r" (tmp)
: "i" (offsetof(struct paca_struct, irq_soft_mask)),
"r" (mask)
: "memory");
#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
WARN_ON((mask | flags) && !((mask | flags) & IRQS_DISABLED));
#endif
return flags;
}
@ -282,7 +311,8 @@ static inline bool pmi_irq_pending(void)
flags = irq_soft_mask_set_return(IRQS_ALL_DISABLED); \
local_paca->irq_happened |= PACA_IRQ_HARD_DIS; \
if (!arch_irqs_disabled_flags(flags)) { \
WRITE_ONCE(local_paca->saved_r1, current_stack_pointer);\
asm volatile("std%X0 %1,%0" : "=m" (local_paca->saved_r1) \
: "r" (current_stack_pointer)); \
trace_hardirqs_off(); \
} \
} while(0)

9
arch/powerpc/kernel/pci_32.c
View File

@ -245,6 +245,15 @@ static int __init pcibios_init(void)
printk(KERN_INFO "PCI: Probing PCI hardware\n");
#ifdef CONFIG_PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT
/*
* Enable PCI domains in /proc when PCI bus numbers are not unique
* across all PCI domains to prevent conflicts. And keep PCI domain 0
* backward compatible in /proc for video cards.
*/
pci_add_flags(PCI_ENABLE_PROC_DOMAINS | PCI_COMPAT_DOMAIN_0);
#endif
if (pci_has_flag(PCI_REASSIGN_ALL_BUS))
pci_assign_all_buses = 1;

4
arch/powerpc/kernel/rtas_entry.S
View File

@ -109,8 +109,12 @@ __enter_rtas:
* its critical regions (as specified in PAPR+ section 7.2.1). MSR[S]
* is not impacted by RFI_TO_KERNEL (only urfid can unset it). So if
* MSR[S] is set, it will remain when entering RTAS.
* If we're in HV mode, RTAS must also run in HV mode, so extract MSR_HV
* from the saved MSR value and insert into the value RTAS will use.
*/
extrdi r0, r6, 1, 63 - MSR_HV_LG
LOAD_REG_IMMEDIATE(r6, MSR_ME | MSR_RI)
insrdi r6, r0, 1, 63 - MSR_HV_LG
li r0,0
mtmsrd r0,1 /* disable RI before using SRR0/1 */

1
arch/powerpc/kernel/systbl.S
View File

@ -18,6 +18,7 @@
.p2align 3
#define __SYSCALL(nr, entry) .8byte entry
#else
.p2align 2
#define __SYSCALL(nr, entry) .long entry
#endif

90
arch/powerpc/platforms/pseries/papr_scm.c
View File

@ -124,9 +124,6 @@ struct papr_scm_priv {
/* The bits which needs to be overridden */
u64 health_bitmap_inject_mask;
/* array to have event_code and stat_id mappings */
u8 *nvdimm_events_map;
};
static int papr_scm_pmem_flush(struct nd_region *nd_region,
@ -350,6 +347,25 @@ static ssize_t drc_pmem_query_stats(struct papr_scm_priv *p,
#ifdef CONFIG_PERF_EVENTS
#define to_nvdimm_pmu(_pmu) container_of(_pmu, struct nvdimm_pmu, pmu)
static const char * const nvdimm_events_map[] = {
[1] = "CtlResCt",
[2] = "CtlResTm",
[3] = "PonSecs ",
[4] = "MemLife ",
[5] = "CritRscU",
[6] = "HostLCnt",
[7] = "HostSCnt",
[8] = "HostSDur",
[9] = "HostLDur",
[10] = "MedRCnt ",
[11] = "MedWCnt ",
[12] = "MedRDur ",
[13] = "MedWDur ",
[14] = "CchRHCnt",
[15] = "CchWHCnt",
[16] = "FastWCnt",
};
static int papr_scm_pmu_get_value(struct perf_event *event, struct device *dev, u64 *count)
{
struct papr_scm_perf_stat *stat;
@ -357,11 +373,15 @@ static int papr_scm_pmu_get_value(struct perf_event *event, struct device *dev,
struct papr_scm_priv *p = dev_get_drvdata(dev);
int rc, size;
/* Invalid eventcode */
if (event->attr.config == 0 || event->attr.config >= ARRAY_SIZE(nvdimm_events_map))
return -EINVAL;
/* Allocate request buffer enough to hold single performance stat */
size = sizeof(struct papr_scm_perf_stats) +
sizeof(struct papr_scm_perf_stat);
if (!p || !p->nvdimm_events_map)
if (!p)
return -EINVAL;
stats = kzalloc(size, GFP_KERNEL);
@ -370,7 +390,7 @@ static int papr_scm_pmu_get_value(struct perf_event *event, struct device *dev,
stat = &stats->scm_statistic[0];
memcpy(&stat->stat_id,
&p->nvdimm_events_map[event->attr.config * sizeof(stat->stat_id)],
nvdimm_events_map[event->attr.config],
sizeof(stat->stat_id));
stat->stat_val = 0;
@ -458,56 +478,6 @@ static void papr_scm_pmu_del(struct perf_event *event, int flags)
papr_scm_pmu_read(event);
}
static int papr_scm_pmu_check_events(struct papr_scm_priv *p, struct nvdimm_pmu *nd_pmu)
{
struct papr_scm_perf_stat *stat;
struct papr_scm_perf_stats *stats;
u32 available_events;
int index, rc = 0;
if (!p->stat_buffer_len)
return -ENOENT;
available_events = (p->stat_buffer_len - sizeof(struct papr_scm_perf_stats))
/ sizeof(struct papr_scm_perf_stat);
if (available_events == 0)
return -EOPNOTSUPP;
/* Allocate the buffer for phyp where stats are written */
stats = kzalloc(p->stat_buffer_len, GFP_KERNEL);
if (!stats) {
rc = -ENOMEM;
return rc;
}
/* Called to get list of events supported */
rc = drc_pmem_query_stats(p, stats, 0);
if (rc)
goto out;
/*
* Allocate memory and populate nvdimm_event_map.
* Allocate an extra element for NULL entry
*/
p->nvdimm_events_map = kcalloc(available_events + 1,
sizeof(stat->stat_id),
GFP_KERNEL);
if (!p->nvdimm_events_map) {
rc = -ENOMEM;
goto out;
}
/* Copy all stat_ids to event map */
for (index = 0, stat = stats->scm_statistic;
index < available_events; index++, ++stat) {
memcpy(&p->nvdimm_events_map[index * sizeof(stat->stat_id)],
&stat->stat_id, sizeof(stat->stat_id));
}
out:
kfree(stats);
return rc;
}
static void papr_scm_pmu_register(struct papr_scm_priv *p)
{
struct nvdimm_pmu *nd_pmu;
@ -519,9 +489,10 @@ static void papr_scm_pmu_register(struct papr_scm_priv *p)
goto pmu_err_print;
}
rc = papr_scm_pmu_check_events(p, nd_pmu);
if (rc)
if (!p->stat_buffer_len) {
rc = -ENOENT;
goto pmu_check_events_err;
}
nd_pmu->pmu.task_ctx_nr = perf_invalid_context;
nd_pmu->pmu.name = nvdimm_name(p->nvdimm);
@ -539,7 +510,7 @@ static void papr_scm_pmu_register(struct papr_scm_priv *p)
rc = register_nvdimm_pmu(nd_pmu, p->pdev);
if (rc)
goto pmu_register_err;
goto pmu_check_events_err;
/*
* Set archdata.priv value to nvdimm_pmu structure, to handle the
@ -548,8 +519,6 @@ static void papr_scm_pmu_register(struct papr_scm_priv *p)
p->pdev->archdata.priv = nd_pmu;
return;
pmu_register_err:
kfree(p->nvdimm_events_map);
pmu_check_events_err:
kfree(nd_pmu);
pmu_err_print:
@ -1560,7 +1529,6 @@ static int papr_scm_remove(struct platform_device *pdev)
unregister_nvdimm_pmu(pdev->archdata.priv);
pdev->archdata.priv = NULL;
kfree(p->nvdimm_events_map);
kfree(p->bus_desc.provider_name);
kfree(p);

12
arch/riscv/include/asm/kvm_vcpu_sbi.h
View File

@ -33,4 +33,16 @@ void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu,
u32 type, u64 flags);
const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid);
#ifdef CONFIG_RISCV_SBI_V01
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01;
#endif
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_base;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_time;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_ipi;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_rfence;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_srst;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_hsm;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor;
#endif /* __RISCV_KVM_VCPU_SBI_H__ */

12
arch/riscv/kvm/vcpu_sbi.c
View File

@ -32,23 +32,13 @@ static int kvm_linux_err_map_sbi(int err)
};
}
#ifdef CONFIG_RISCV_SBI_V01
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01;
#else
#ifndef CONFIG_RISCV_SBI_V01
static const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01 = {
.extid_start = -1UL,
.extid_end = -1UL,
.handler = NULL,
};
#endif
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_base;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_time;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_ipi;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_rfence;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_srst;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_hsm;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental;
extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor;
static const struct kvm_vcpu_sbi_extension *sbi_ext[] = {
&vcpu_sbi_ext_v01,

4
arch/riscv/kvm/vcpu_timer.c
View File

@ -299,7 +299,6 @@ static void kvm_riscv_vcpu_update_timedelta(struct kvm_vcpu *vcpu)
void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu)
{
struct kvm_vcpu_csr *csr;
struct kvm_vcpu_timer *t = &vcpu->arch.timer;
kvm_riscv_vcpu_update_timedelta(vcpu);
@ -307,7 +306,6 @@ void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu)
if (!t->sstc_enabled)
return;
csr = &vcpu->arch.guest_csr;
#if defined(CONFIG_32BIT)
csr_write(CSR_VSTIMECMP, (u32)t->next_cycles);
csr_write(CSR_VSTIMECMPH, (u32)(t->next_cycles >> 32));
@ -324,13 +322,11 @@ void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu)
void kvm_riscv_vcpu_timer_save(struct kvm_vcpu *vcpu)
{
struct kvm_vcpu_csr *csr;
struct kvm_vcpu_timer *t = &vcpu->arch.timer;
if (!t->sstc_enabled)
return;
csr = &vcpu->arch.guest_csr;
t = &vcpu->arch.timer;
#if defined(CONFIG_32BIT)
t->next_cycles = csr_read(CSR_VSTIMECMP);

4
arch/riscv/mm/pageattr.c
View File

@ -118,10 +118,10 @@ static int __set_memory(unsigned long addr, int numpages, pgprot_t set_mask,
if (!numpages)
return 0;
mmap_read_lock(&init_mm);
mmap_write_lock(&init_mm);
ret = walk_page_range_novma(&init_mm, start, end, &pageattr_ops, NULL,
&masks);
mmap_read_unlock(&init_mm);
mmap_write_unlock(&init_mm);
flush_tlb_kernel_range(start, end);

53
arch/s390/configs/debug_defconfig
View File

@ -40,8 +40,6 @@ CONFIG_CHECKPOINT_RESTORE=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_EXPERT=y
# CONFIG_SYSFS_SYSCALL is not set
CONFIG_USERFAULTFD=y
# CONFIG_COMPAT_BRK is not set
CONFIG_PROFILING=y
CONFIG_LIVEPATCH=y
CONFIG_MARCH_ZEC12=y
@ -74,6 +72,7 @@ CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG_SHA256=y
@ -93,6 +92,10 @@ CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_SLUB_STATS=y
# CONFIG_COMPAT_BRK is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
@ -102,14 +105,12 @@ CONFIG_CMA_DEBUGFS=y
CONFIG_CMA_SYSFS=y
CONFIG_CMA_AREAS=7
CONFIG_MEM_SOFT_DIRTY=y
CONFIG_ZSWAP=y
CONFIG_ZSMALLOC=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_PERCPU_STATS=y
CONFIG_GUP_TEST=y
CONFIG_ANON_VMA_NAME=y
CONFIG_USERFAULTFD=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
@ -167,6 +168,7 @@ CONFIG_BRIDGE_NETFILTER=m
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
@ -493,7 +495,6 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_ASIX is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
@ -509,7 +510,7 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_GOOGLE is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_WANGXUN is not set
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_MLX4_EN=m
@ -518,16 +519,18 @@ CONFIG_MLX5_CORE_EN=y
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
@ -535,9 +538,9 @@ CONFIG_MLX5_CORE_EN=y
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
@ -570,6 +573,8 @@ CONFIG_VIRTIO_CONSOLE=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HANGCHECK_TIMER=m
CONFIG_TN3270_FS=y
# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
CONFIG_PPS=m
# CONFIG_PTP_1588_CLOCK is not set
# CONFIG_HWMON is not set
@ -727,18 +732,26 @@ CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_SM3_GENERIC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
@ -746,11 +759,14 @@ CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_842=m
@ -766,16 +782,6 @@ CONFIG_CRYPTO_STATS=y
CONFIG_ZCRYPT=m
CONFIG_PKEY=m
CONFIG_CRYPTO_PAES_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_DEV_VIRTIO=m
CONFIG_CORDIC=m
CONFIG_CRYPTO_LIB_CURVE25519=m
@ -797,6 +803,7 @@ CONFIG_HEADERS_INSTALL=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_PAGE_OWNER=y
CONFIG_DEBUG_RODATA_TEST=y
CONFIG_DEBUG_WX=y
@ -808,8 +815,6 @@ CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_SLUB_STATS=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_PGFLAGS=y

49
arch/s390/configs/defconfig
View File

@ -38,8 +38,6 @@ CONFIG_CHECKPOINT_RESTORE=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_EXPERT=y
# CONFIG_SYSFS_SYSCALL is not set
CONFIG_USERFAULTFD=y
# CONFIG_COMPAT_BRK is not set
CONFIG_PROFILING=y
CONFIG_LIVEPATCH=y
CONFIG_MARCH_ZEC12=y
@ -69,6 +67,7 @@ CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG_SHA256=y
@ -88,6 +87,9 @@ CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
CONFIG_ZSMALLOC_STAT=y
# CONFIG_COMPAT_BRK is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
@ -95,13 +97,11 @@ CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_CMA_SYSFS=y
CONFIG_CMA_AREAS=7
CONFIG_MEM_SOFT_DIRTY=y
CONFIG_ZSWAP=y
CONFIG_ZSMALLOC=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_PERCPU_STATS=y
CONFIG_ANON_VMA_NAME=y
CONFIG_USERFAULTFD=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
@ -159,6 +159,7 @@ CONFIG_BRIDGE_NETFILTER=m
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
@ -484,7 +485,6 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_ASIX is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
@ -500,7 +500,7 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_GOOGLE is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_WANGXUN is not set
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_MLX4_EN=m
@ -509,16 +509,18 @@ CONFIG_MLX5_CORE_EN=y
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
@ -526,9 +528,9 @@ CONFIG_MLX5_CORE_EN=y
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
@ -561,6 +563,8 @@ CONFIG_VIRTIO_CONSOLE=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HANGCHECK_TIMER=m
CONFIG_TN3270_FS=y
# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# CONFIG_PTP_1588_CLOCK is not set
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
@ -713,18 +717,26 @@ CONFIG_CRYPTO_OFB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_SM3_GENERIC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
@ -732,11 +744,14 @@ CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_842=m
@ -752,16 +767,6 @@ CONFIG_CRYPTO_STATS=y
CONFIG_ZCRYPT=m
CONFIG_PKEY=m
CONFIG_CRYPTO_PAES_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_DEV_VIRTIO=m
CONFIG_CORDIC=m
CONFIG_PRIME_NUMBERS=m

6
arch/s390/configs/zfcpdump_defconfig
View File

@ -1,4 +1,3 @@
# CONFIG_SWAP is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BPF_SYSCALL=y
@ -9,7 +8,6 @@ CONFIG_BPF_SYSCALL=y
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_COMPAT_BRK is not set
CONFIG_MARCH_ZEC12=y
CONFIG_TUNE_ZEC12=y
# CONFIG_COMPAT is not set
@ -28,6 +26,8 @@ CONFIG_CRASH_DUMP=y
# CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
CONFIG_PARTITION_ADVANCED=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_SWAP is not set
# CONFIG_COMPAT_BRK is not set
# CONFIG_COMPACTION is not set
# CONFIG_MIGRATION is not set
CONFIG_NET=y
@ -53,10 +53,12 @@ CONFIG_ZFCP=y
# CONFIG_HVC_IUCV is not set
# CONFIG_HW_RANDOM_S390 is not set
# CONFIG_HMC_DRV is not set
# CONFIG_S390_UV_UAPI is not set
# CONFIG_S390_TAPE is not set
# CONFIG_VMCP is not set
# CONFIG_MONWRITER is not set
# CONFIG_S390_VMUR is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# CONFIG_HID is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set

6
arch/s390/include/asm/hugetlb.h
View File

@ -28,9 +28,11 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
static inline int prepare_hugepage_range(struct file *file,
unsigned long addr, unsigned long len)
{
if (len & ~HPAGE_MASK)
struct hstate *h = hstate_file(file);
if (len & ~huge_page_mask(h))
return -EINVAL;
if (addr & ~HPAGE_MASK)
if (addr & ~huge_page_mask(h))
return -EINVAL;
return 0;
}

17
arch/s390/include/asm/kvm_host.h
View File

@ -1038,16 +1038,11 @@ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#define __KVM_HAVE_ARCH_VM_FREE
void kvm_arch_free_vm(struct kvm *kvm);
#ifdef CONFIG_VFIO_PCI_ZDEV_KVM
int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm);
void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev);
#else
static inline int kvm_s390_pci_register_kvm(struct zpci_dev *dev,
struct kvm *kvm)
{
return -EPERM;
}
static inline void kvm_s390_pci_unregister_kvm(struct zpci_dev *dev) {}
#endif
struct zpci_kvm_hook {
int (*kvm_register)(void *opaque, struct kvm *kvm);
void (*kvm_unregister)(void *opaque);
};
extern struct zpci_kvm_hook zpci_kvm_hook;
#endif

1
arch/s390/kernel/vmlinux.lds.S
View File

@ -131,6 +131,7 @@ SECTIONS
/*
* Table with the patch locations to undo expolines
*/
. = ALIGN(4);
.nospec_call_table : {
__nospec_call_start = . ;
*(.s390_indirect*)

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

@ -431,8 +431,9 @@ static void kvm_s390_pci_dev_release(struct zpci_dev *zdev)
* available, enable them and let userspace indicate whether or not they will
* be used (specify SHM bit to disable).
*/
int kvm_s390_pci_register_kvm(struct zpci_dev *zdev, struct kvm *kvm)
static int kvm_s390_pci_register_kvm(void *opaque, struct kvm *kvm)
{
struct zpci_dev *zdev = opaque;
int rc;
if (!zdev)
@ -510,10 +511,10 @@ err:
kvm_put_kvm(kvm);
return rc;
}
EXPORT_SYMBOL_GPL(kvm_s390_pci_register_kvm);
void kvm_s390_pci_unregister_kvm(struct zpci_dev *zdev)
static void kvm_s390_pci_unregister_kvm(void *opaque)
{
struct zpci_dev *zdev = opaque;
struct kvm *kvm;
if (!zdev)
@ -566,7 +567,6 @@ out:
kvm_put_kvm(kvm);
}
EXPORT_SYMBOL_GPL(kvm_s390_pci_unregister_kvm);
void kvm_s390_pci_init_list(struct kvm *kvm)
{
@ -678,6 +678,8 @@ int kvm_s390_pci_init(void)
spin_lock_init(&aift->gait_lock);
mutex_init(&aift->aift_lock);
zpci_kvm_hook.kvm_register = kvm_s390_pci_register_kvm;
zpci_kvm_hook.kvm_unregister = kvm_s390_pci_unregister_kvm;
return 0;
}
@ -685,6 +687,8 @@ int kvm_s390_pci_init(void)
void kvm_s390_pci_exit(void)
{
mutex_destroy(&aift->aift_lock);
zpci_kvm_hook.kvm_register = NULL;
zpci_kvm_hook.kvm_unregister = NULL;
kfree(aift);
}

2
arch/s390/mm/fault.c
View File

@ -421,8 +421,6 @@ retry:
if (unlikely(!(vma->vm_flags & access)))
goto out_up;
if (is_vm_hugetlb_page(vma))
address &= HPAGE_MASK;
/*
* If for any reason at all we couldn't handle the fault,
* make sure we exit gracefully rather than endlessly redo

2
arch/s390/pci/Makefile
View File

@ -5,5 +5,5 @@
obj-$(CONFIG_PCI) += pci.o pci_irq.o pci_dma.o pci_clp.o pci_sysfs.o \
pci_event.o pci_debug.o pci_insn.o pci_mmio.o \
pci_bus.o
pci_bus.o pci_kvm_hook.o
obj-$(CONFIG_PCI_IOV) += pci_iov.o

11
arch/s390/pci/pci_kvm_hook.c Normal file
View File

@ -0,0 +1,11 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* VFIO ZPCI devices support
*
* Copyright (C) IBM Corp. 2022. All rights reserved.
* Author(s): Pierre Morel <pmorel@linux.ibm.com>
*/
#include <linux/kvm_host.h>
struct zpci_kvm_hook zpci_kvm_hook;
EXPORT_SYMBOL_GPL(zpci_kvm_hook);

3
arch/x86/events/intel/core.c
View File

@ -4052,8 +4052,9 @@ static struct perf_guest_switch_msr *intel_guest_get_msrs(int *nr, void *data)
/* Disable guest PEBS if host PEBS is enabled. */
arr[pebs_enable].guest = 0;
} else {
/* Disable guest PEBS for cross-mapped PEBS counters. */
/* Disable guest PEBS thoroughly for cross-mapped PEBS counters. */
arr[pebs_enable].guest &= ~kvm_pmu->host_cross_mapped_mask;
arr[global_ctrl].guest &= ~kvm_pmu->host_cross_mapped_mask;
/* Set hw GLOBAL_CTRL bits for PEBS counter when it runs for guest */
arr[global_ctrl].guest |= arr[pebs_enable].guest;
}

60
arch/x86/kvm/mmu/mmu.c
View File

@ -5361,19 +5361,6 @@ void kvm_mmu_free_obsolete_roots(struct kvm_vcpu *vcpu)
__kvm_mmu_free_obsolete_roots(vcpu->kvm, &vcpu->arch.guest_mmu);
}
static bool need_remote_flush(u64 old, u64 new)
{
if (!is_shadow_present_pte(old))
return false;
if (!is_shadow_present_pte(new))
return true;
if ((old ^ new) & SPTE_BASE_ADDR_MASK)
return true;
old ^= shadow_nx_mask;
new ^= shadow_nx_mask;
return (old & ~new & SPTE_PERM_MASK) != 0;
}
static u64 mmu_pte_write_fetch_gpte(struct kvm_vcpu *vcpu, gpa_t *gpa,
int *bytes)
{
@ -5519,7 +5506,7 @@ static void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
mmu_page_zap_pte(vcpu->kvm, sp, spte, NULL);
if (gentry && sp->role.level != PG_LEVEL_4K)
++vcpu->kvm->stat.mmu_pde_zapped;
if (need_remote_flush(entry, *spte))
if (is_shadow_present_pte(entry))
flush = true;
++spte;
}
@ -6085,47 +6072,18 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
const struct kvm_memory_slot *memslot,
int start_level)
{
bool flush = false;
if (kvm_memslots_have_rmaps(kvm)) {
write_lock(&kvm->mmu_lock);
flush = slot_handle_level(kvm, memslot, slot_rmap_write_protect,
start_level, KVM_MAX_HUGEPAGE_LEVEL,
false);
slot_handle_level(kvm, memslot, slot_rmap_write_protect,
start_level, KVM_MAX_HUGEPAGE_LEVEL, false);
write_unlock(&kvm->mmu_lock);
}
if (is_tdp_mmu_enabled(kvm)) {
read_lock(&kvm->mmu_lock);
flush |= kvm_tdp_mmu_wrprot_slot(kvm, memslot, start_level);
kvm_tdp_mmu_wrprot_slot(kvm, memslot, start_level);
read_unlock(&kvm->mmu_lock);
}
/*
* Flush TLBs if any SPTEs had to be write-protected to ensure that
* guest writes are reflected in the dirty bitmap before the memslot
* update completes, i.e. before enabling dirty logging is visible to
* userspace.
*
* Perform the TLB flush outside the mmu_lock to reduce the amount of
* time the lock is held. However, this does mean that another CPU can
* now grab mmu_lock and encounter a write-protected SPTE while CPUs
* still have a writable mapping for the associated GFN in their TLB.
*
* This is safe but requires KVM to be careful when making decisions
* based on the write-protection status of an SPTE. Specifically, KVM
* also write-protects SPTEs to monitor changes to guest page tables
* during shadow paging, and must guarantee no CPUs can write to those
* page before the lock is dropped. As mentioned in the previous
* paragraph, a write-protected SPTE is no guarantee that CPU cannot
* perform writes. So to determine if a TLB flush is truly required, KVM
* will clear a separate software-only bit (MMU-writable) and skip the
* flush if-and-only-if this bit was already clear.
*
* See is_writable_pte() for more details.
*/
if (flush)
kvm_arch_flush_remote_tlbs_memslot(kvm, memslot);
}
static inline bool need_topup(struct kvm_mmu_memory_cache *cache, int min)
@ -6493,32 +6451,30 @@ void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm,
void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
const struct kvm_memory_slot *memslot)
{
bool flush = false;
if (kvm_memslots_have_rmaps(kvm)) {
write_lock(&kvm->mmu_lock);
/*
* Clear dirty bits only on 4k SPTEs since the legacy MMU only
* support dirty logging at a 4k granularity.
*/
flush = slot_handle_level_4k(kvm, memslot, __rmap_clear_dirty, false);
slot_handle_level_4k(kvm, memslot, __rmap_clear_dirty, false);
write_unlock(&kvm->mmu_lock);
}
if (is_tdp_mmu_enabled(kvm)) {
read_lock(&kvm->mmu_lock);
flush |= kvm_tdp_mmu_clear_dirty_slot(kvm, memslot);
kvm_tdp_mmu_clear_dirty_slot(kvm, memslot);
read_unlock(&kvm->mmu_lock);
}
/*
* The caller will flush the TLBs after this function returns.
*
* It's also safe to flush TLBs out of mmu lock here as currently this
* function is only used for dirty logging, in which case flushing TLB
* out of mmu lock also guarantees no dirty pages will be lost in
* dirty_bitmap.
*/
if (flush)
kvm_arch_flush_remote_tlbs_memslot(kvm, memslot);
}
void kvm_mmu_zap_all(struct kvm *kvm)

14
arch/x86/kvm/mmu/spte.h
View File

@ -343,7 +343,7 @@ static __always_inline bool is_rsvd_spte(struct rsvd_bits_validate *rsvd_check,
}
/*
* An shadow-present leaf SPTE may be non-writable for 3 possible reasons:
* A shadow-present leaf SPTE may be non-writable for 4 possible reasons:
*
* 1. To intercept writes for dirty logging. KVM write-protects huge pages
* so that they can be split be split down into the dirty logging
@ -361,8 +361,13 @@ static __always_inline bool is_rsvd_spte(struct rsvd_bits_validate *rsvd_check,
* read-only memslot or guest memory backed by a read-only VMA. Writes to
* such pages are disallowed entirely.
*
* To keep track of why a given SPTE is write-protected, KVM uses 2
* software-only bits in the SPTE:
* 4. To emulate the Accessed bit for SPTEs without A/D bits. Note, in this
* case, the SPTE is access-protected, not just write-protected!
*
* For cases #1 and #4, KVM can safely make such SPTEs writable without taking
* mmu_lock as capturing the Accessed/Dirty state doesn't require taking it.
* To differentiate #1 and #4 from #2 and #3, KVM uses two software-only bits
* in the SPTE:
*
* shadow_mmu_writable_mask, aka MMU-writable -
* Cleared on SPTEs that KVM is currently write-protecting for shadow paging
@ -391,7 +396,8 @@ static __always_inline bool is_rsvd_spte(struct rsvd_bits_validate *rsvd_check,
* shadow page tables between vCPUs. Write-protecting an SPTE for dirty logging
* (which does not clear the MMU-writable bit), does not flush TLBs before
* dropping the lock, as it only needs to synchronize guest writes with the
* dirty bitmap.
* dirty bitmap. Similarly, making the SPTE inaccessible (and non-writable) for
* access-tracking via the clear_young() MMU notifier also does not flush TLBs.
*
* So, there is the problem: clearing the MMU-writable bit can encounter a
* write-protected SPTE while CPUs still have writable mappings for that SPTE

3
arch/x86/kvm/vmx/vmx.c
View File

@ -843,8 +843,7 @@ static bool msr_write_intercepted(struct vcpu_vmx *vmx, u32 msr)
if (!(exec_controls_get(vmx) & CPU_BASED_USE_MSR_BITMAPS))
return true;
return vmx_test_msr_bitmap_write(vmx->loaded_vmcs->msr_bitmap,
MSR_IA32_SPEC_CTRL);
return vmx_test_msr_bitmap_write(vmx->loaded_vmcs->msr_bitmap, msr);
}
unsigned int __vmx_vcpu_run_flags(struct vcpu_vmx *vmx)

92
arch/x86/kvm/x86.c
View File

@ -1557,12 +1557,32 @@ static const u32 msr_based_features_all[] = {
static u32 msr_based_features[ARRAY_SIZE(msr_based_features_all)];
static unsigned int num_msr_based_features;
/*
* Some IA32_ARCH_CAPABILITIES bits have dependencies on MSRs that KVM
* does not yet virtualize. These include:
* 10 - MISC_PACKAGE_CTRLS
* 11 - ENERGY_FILTERING_CTL
* 12 - DOITM
* 18 - FB_CLEAR_CTRL
* 21 - XAPIC_DISABLE_STATUS
* 23 - OVERCLOCKING_STATUS
*/
#define KVM_SUPPORTED_ARCH_CAP \
(ARCH_CAP_RDCL_NO | ARCH_CAP_IBRS_ALL | ARCH_CAP_RSBA | \
ARCH_CAP_SKIP_VMENTRY_L1DFLUSH | ARCH_CAP_SSB_NO | ARCH_CAP_MDS_NO | \
ARCH_CAP_PSCHANGE_MC_NO | ARCH_CAP_TSX_CTRL_MSR | ARCH_CAP_TAA_NO | \
ARCH_CAP_SBDR_SSDP_NO | ARCH_CAP_FBSDP_NO | ARCH_CAP_PSDP_NO | \
ARCH_CAP_FB_CLEAR | ARCH_CAP_RRSBA | ARCH_CAP_PBRSB_NO)
static u64 kvm_get_arch_capabilities(void)
{
u64 data = 0;
if (boot_cpu_has(X86_FEATURE_ARCH_CAPABILITIES))
if (boot_cpu_has(X86_FEATURE_ARCH_CAPABILITIES)) {
rdmsrl(MSR_IA32_ARCH_CAPABILITIES, data);
data &= KVM_SUPPORTED_ARCH_CAP;
}
/*
* If nx_huge_pages is enabled, KVM's shadow paging will ensure that
@ -1610,9 +1630,6 @@ static u64 kvm_get_arch_capabilities(void)
*/
}
/* Guests don't need to know "Fill buffer clear control" exists */
data &= ~ARCH_CAP_FB_CLEAR_CTRL;
return data;
}
@ -10652,7 +10669,8 @@ static inline int vcpu_block(struct kvm_vcpu *vcpu)
case KVM_MP_STATE_INIT_RECEIVED:
break;
default:
return -EINTR;
WARN_ON_ONCE(1);
break;
}
return 1;
}
@ -11093,9 +11111,22 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
vcpu_load(vcpu);
if (!lapic_in_kernel(vcpu) &&
mp_state->mp_state != KVM_MP_STATE_RUNNABLE)
switch (mp_state->mp_state) {
case KVM_MP_STATE_UNINITIALIZED:
case KVM_MP_STATE_HALTED:
case KVM_MP_STATE_AP_RESET_HOLD:
case KVM_MP_STATE_INIT_RECEIVED:
case KVM_MP_STATE_SIPI_RECEIVED:
if (!lapic_in_kernel(vcpu))
goto out;
break;
case KVM_MP_STATE_RUNNABLE:
break;
default:
goto out;
}
/*
* KVM_MP_STATE_INIT_RECEIVED means the processor is in
@ -11563,7 +11594,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
vcpu->arch.mci_ctl2_banks = kcalloc(KVM_MAX_MCE_BANKS, sizeof(u64),
GFP_KERNEL_ACCOUNT);
if (!vcpu->arch.mce_banks || !vcpu->arch.mci_ctl2_banks)
goto fail_free_pio_data;
goto fail_free_mce_banks;
vcpu->arch.mcg_cap = KVM_MAX_MCE_BANKS;
if (!zalloc_cpumask_var(&vcpu->arch.wbinvd_dirty_mask,
@ -11617,7 +11648,6 @@ free_wbinvd_dirty_mask:
fail_free_mce_banks:
kfree(vcpu->arch.mce_banks);
kfree(vcpu->arch.mci_ctl2_banks);
fail_free_pio_data:
free_page((unsigned long)vcpu->arch.pio_data);
fail_free_lapic:
kvm_free_lapic(vcpu);
@ -12473,6 +12503,50 @@ static void kvm_mmu_slot_apply_flags(struct kvm *kvm,
} else {
kvm_mmu_slot_remove_write_access(kvm, new, PG_LEVEL_4K);
}
/*
* Unconditionally flush the TLBs after enabling dirty logging.
* A flush is almost always going to be necessary (see below),
* and unconditionally flushing allows the helpers to omit
* the subtly complex checks when removing write access.
*
* Do the flush outside of mmu_lock to reduce the amount of
* time mmu_lock is held. Flushing after dropping mmu_lock is
* safe as KVM only needs to guarantee the slot is fully
* write-protected before returning to userspace, i.e. before
* userspace can consume the dirty status.
*
* Flushing outside of mmu_lock requires KVM to be careful when
* making decisions based on writable status of an SPTE, e.g. a
* !writable SPTE doesn't guarantee a CPU can't perform writes.
*
* Specifically, KVM also write-protects guest page tables to
* monitor changes when using shadow paging, and must guarantee
* no CPUs can write to those page before mmu_lock is dropped.
* Because CPUs may have stale TLB entries at this point, a
* !writable SPTE doesn't guarantee CPUs can't perform writes.
*
* KVM also allows making SPTES writable outside of mmu_lock,
* e.g. to allow dirty logging without taking mmu_lock.
*
* To handle these scenarios, KVM uses a separate software-only
* bit (MMU-writable) to track if a SPTE is !writable due to
* a guest page table being write-protected (KVM clears the
* MMU-writable flag when write-protecting for shadow paging).
*
* The use of MMU-writable is also the primary motivation for
* the unconditional flush. Because KVM must guarantee that a
* CPU doesn't contain stale, writable TLB entries for a
* !MMU-writable SPTE, KVM must flush if it encounters any
* MMU-writable SPTE regardless of whether the actual hardware
* writable bit was set. I.e. KVM is almost guaranteed to need
* to flush, while unconditionally flushing allows the "remove
* write access" helpers to ignore MMU-writable entirely.
*
* See is_writable_pte() for more details (the case involving
* access-tracked SPTEs is particularly relevant).
*/
kvm_arch_flush_remote_tlbs_memslot(kvm, new);
}
}

8
drivers/amba/bus.c
View File

@ -209,6 +209,7 @@ static int amba_match(struct device *dev, struct device_driver *drv)
struct amba_device *pcdev = to_amba_device(dev);
struct amba_driver *pcdrv = to_amba_driver(drv);
mutex_lock(&pcdev->periphid_lock);
if (!pcdev->periphid) {
int ret = amba_read_periphid(pcdev);
@ -218,11 +219,14 @@ static int amba_match(struct device *dev, struct device_driver *drv)
* permanent failure in reading pid and cid, simply map it to
* -EPROBE_DEFER.
*/
if (ret)
if (ret) {
mutex_unlock(&pcdev->periphid_lock);
return -EPROBE_DEFER;
}
dev_set_uevent_suppress(dev, false);
kobject_uevent(&dev->kobj, KOBJ_ADD);
}
mutex_unlock(&pcdev->periphid_lock);
/* When driver_override is set, only bind to the matching driver */
if (pcdev->driver_override)
@ -532,6 +536,7 @@ static void amba_device_release(struct device *dev)
if (d->res.parent)
release_resource(&d->res);
mutex_destroy(&d->periphid_lock);
kfree(d);
}
@ -584,6 +589,7 @@ static void amba_device_initialize(struct amba_device *dev, const char *name)
dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
dev->dev.dma_parms = &dev->dma_parms;
dev->res.name = dev_name(&dev->dev);
mutex_init(&dev->periphid_lock);
}
/**

12
drivers/android/binder.c
View File

@ -1385,6 +1385,18 @@ static int binder_inc_ref_for_node(struct binder_proc *proc,
}
ret = binder_inc_ref_olocked(ref, strong, target_list);
*rdata = ref->data;
if (ret && ref == new_ref) {
/*
* Cleanup the failed reference here as the target
* could now be dead and have already released its
* references by now. Calling on the new reference
* with strong=0 and a tmp_refs will not decrement
* the node. The new_ref gets kfree'd below.
*/
binder_cleanup_ref_olocked(new_ref);
ref = NULL;
}
binder_proc_unlock(proc);
if (new_ref && ref != new_ref)
/*

4
drivers/android/binder_alloc.c
View File

@ -322,7 +322,6 @@ static inline void binder_alloc_set_vma(struct binder_alloc *alloc,
*/
if (vma) {
vm_start = vma->vm_start;
alloc->vma_vm_mm = vma->vm_mm;
mmap_assert_write_locked(alloc->vma_vm_mm);
} else {
mmap_assert_locked(alloc->vma_vm_mm);
@ -795,7 +794,6 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
binder_insert_free_buffer(alloc, buffer);
alloc->free_async_space = alloc->buffer_size / 2;
binder_alloc_set_vma(alloc, vma);
mmgrab(alloc->vma_vm_mm);
return 0;
@ -1091,6 +1089,8 @@ static struct shrinker binder_shrinker = {
void binder_alloc_init(struct binder_alloc *alloc)
{
alloc->pid = current->group_leader->pid;
alloc->vma_vm_mm = current->mm;
mmgrab(alloc->vma_vm_mm);
mutex_init(&alloc->mutex);
INIT_LIST_HEAD(&alloc->buffers);
}

2
drivers/base/arch_topology.c
View File

@ -735,7 +735,7 @@ void update_siblings_masks(unsigned int cpuid)
int cpu, ret;
ret = detect_cache_attributes(cpuid);
if (ret)
if (ret && ret != -ENOENT)
pr_info("Early cacheinfo failed, ret = %d\n", ret);
/* update core and thread sibling masks */

40
drivers/base/dd.c
View File

@ -274,12 +274,42 @@ static int __init deferred_probe_timeout_setup(char *str)
}
__setup("deferred_probe_timeout=", deferred_probe_timeout_setup);
/**
* driver_deferred_probe_check_state() - Check deferred probe state
* @dev: device to check
*
* Return:
* * -ENODEV if initcalls have completed and modules are disabled.
* * -ETIMEDOUT if the deferred probe timeout was set and has expired
* and modules are enabled.
* * -EPROBE_DEFER in other cases.
*
* Drivers or subsystems can opt-in to calling this function instead of directly
* returning -EPROBE_DEFER.
*/
int driver_deferred_probe_check_state(struct device *dev)
{
if (!IS_ENABLED(CONFIG_MODULES) && initcalls_done) {
dev_warn(dev, "ignoring dependency for device, assuming no driver\n");
return -ENODEV;
}
if (!driver_deferred_probe_timeout && initcalls_done) {
dev_warn(dev, "deferred probe timeout, ignoring dependency\n");
return -ETIMEDOUT;
}
return -EPROBE_DEFER;
}
EXPORT_SYMBOL_GPL(driver_deferred_probe_check_state);
static void deferred_probe_timeout_work_func(struct work_struct *work)
{
struct device_private *p;
fw_devlink_drivers_done();
driver_deferred_probe_timeout = 0;
driver_deferred_probe_trigger();
flush_work(&deferred_probe_work);
@ -881,6 +911,11 @@ static int __device_attach_driver(struct device_driver *drv, void *_data)
dev_dbg(dev, "Device match requests probe deferral\n");
dev->can_match = true;
driver_deferred_probe_add(dev);
/*
* Device can't match with a driver right now, so don't attempt
* to match or bind with other drivers on the bus.
*/
return ret;
} else if (ret < 0) {
dev_dbg(dev, "Bus failed to match device: %d\n", ret);
return ret;
@ -1120,6 +1155,11 @@ static int __driver_attach(struct device *dev, void *data)
dev_dbg(dev, "Device match requests probe deferral\n");
dev->can_match = true;
driver_deferred_probe_add(dev);
/*
* Driver could not match with device, but may match with
* another device on the bus.
*/
return 0;
} else if (ret < 0) {
dev_dbg(dev, "Bus failed to match device: %d\n", ret);
return ret;

7
drivers/base/firmware_loader/sysfs.c
View File

@ -93,10 +93,9 @@ static void fw_dev_release(struct device *dev)
{
struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
if (fw_sysfs->fw_upload_priv) {
free_fw_priv(fw_sysfs->fw_priv);
kfree(fw_sysfs->fw_upload_priv);
}
if (fw_sysfs->fw_upload_priv)
fw_upload_free(fw_sysfs);
kfree(fw_sysfs);
}

5
drivers/base/firmware_loader/sysfs.h
View File

@ -106,12 +106,17 @@ extern struct device_attribute dev_attr_cancel;
extern struct device_attribute dev_attr_remaining_size;
int fw_upload_start(struct fw_sysfs *fw_sysfs);
void fw_upload_free(struct fw_sysfs *fw_sysfs);
umode_t fw_upload_is_visible(struct kobject *kobj, struct attribute *attr, int n);
#else
static inline int fw_upload_start(struct fw_sysfs *fw_sysfs)
{
return 0;
}
static inline void fw_upload_free(struct fw_sysfs *fw_sysfs)
{
}
#endif
#endif /* __FIRMWARE_SYSFS_H */

12
drivers/base/firmware_loader/sysfs_upload.c
View File

@ -264,6 +264,15 @@ int fw_upload_start(struct fw_sysfs *fw_sysfs)
return 0;
}
void fw_upload_free(struct fw_sysfs *fw_sysfs)
{
struct fw_upload_priv *fw_upload_priv = fw_sysfs->fw_upload_priv;
free_fw_priv(fw_sysfs->fw_priv);
kfree(fw_upload_priv->fw_upload);
kfree(fw_upload_priv);
}
/**
* firmware_upload_register() - register for the firmware upload sysfs API
* @module: kernel module of this device
@ -377,6 +386,7 @@ void firmware_upload_unregister(struct fw_upload *fw_upload)
{
struct fw_sysfs *fw_sysfs = fw_upload->priv;
struct fw_upload_priv *fw_upload_priv = fw_sysfs->fw_upload_priv;
struct module *module = fw_upload_priv->module;
mutex_lock(&fw_upload_priv->lock);
if (fw_upload_priv->progress == FW_UPLOAD_PROG_IDLE) {
@ -392,6 +402,6 @@ void firmware_upload_unregister(struct fw_upload *fw_upload)
unregister:
device_unregister(&fw_sysfs->dev);
module_put(fw_upload_priv->module);
module_put(module);
}
EXPORT_SYMBOL_GPL(firmware_upload_unregister);

2
drivers/base/power/domain.c
View File

@ -2733,7 +2733,7 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
mutex_unlock(&gpd_list_lock);
dev_dbg(dev, "%s() failed to find PM domain: %ld\n",
__func__, PTR_ERR(pd));
return -ENODEV;
return driver_deferred_probe_check_state(base_dev);
}
dev_dbg(dev, "adding to PM domain %s\n", pd->name);

3
drivers/block/xen-blkback/common.h
View File

@ -226,6 +226,9 @@ struct xen_vbd {
sector_t size;
unsigned int flush_support:1;
unsigned int discard_secure:1;
/* Connect-time cached feature_persistent parameter value */
unsigned int feature_gnt_persistent_parm:1;
/* Persistent grants feature negotiation result */
unsigned int feature_gnt_persistent:1;
unsigned int overflow_max_grants:1;
};

6
drivers/block/xen-blkback/xenbus.c
View File

@ -907,7 +907,7 @@ again:
xen_blkbk_barrier(xbt, be, be->blkif->vbd.flush_support);
err = xenbus_printf(xbt, dev->nodename, "feature-persistent", "%u",
be->blkif->vbd.feature_gnt_persistent);
be->blkif->vbd.feature_gnt_persistent_parm);
if (err) {
xenbus_dev_fatal(dev, err, "writing %s/feature-persistent",
dev->nodename);
@ -1085,7 +1085,9 @@ static int connect_ring(struct backend_info *be)
return -ENOSYS;
}
blkif->vbd.feature_gnt_persistent = feature_persistent &&
blkif->vbd.feature_gnt_persistent_parm = feature_persistent;
blkif->vbd.feature_gnt_persistent =
blkif->vbd.feature_gnt_persistent_parm &&
xenbus_read_unsigned(dev->otherend, "feature-persistent", 0);
blkif->vbd.overflow_max_grants = 0;

20
drivers/block/xen-blkfront.c
View File

@ -213,6 +213,9 @@ struct blkfront_info
unsigned int feature_fua:1;
unsigned int feature_discard:1;
unsigned int feature_secdiscard:1;
/* Connect-time cached feature_persistent parameter */
unsigned int feature_persistent_parm:1;
/* Persistent grants feature negotiation result */
unsigned int feature_persistent:1;
unsigned int bounce:1;
unsigned int discard_granularity;
@ -1756,6 +1759,12 @@ abort_transaction:
return err;
}
/* Enable the persistent grants feature. */
static bool feature_persistent = true;
module_param(feature_persistent, bool, 0644);
MODULE_PARM_DESC(feature_persistent,
"Enables the persistent grants feature");
/* Common code used when first setting up, and when resuming. */
static int talk_to_blkback(struct xenbus_device *dev,
struct blkfront_info *info)
@ -1847,8 +1856,9 @@ again:
message = "writing protocol";
goto abort_transaction;
}
info->feature_persistent_parm = feature_persistent;
err = xenbus_printf(xbt, dev->nodename, "feature-persistent", "%u",
info->feature_persistent);
info->feature_persistent_parm);
if (err)
dev_warn(&dev->dev,
"writing persistent grants feature to xenbus");
@ -1916,12 +1926,6 @@ static int negotiate_mq(struct blkfront_info *info)
return 0;
}
/* Enable the persistent grants feature. */
static bool feature_persistent = true;
module_param(feature_persistent, bool, 0644);
MODULE_PARM_DESC(feature_persistent,
"Enables the persistent grants feature");
/*
* Entry point to this code when a new device is created. Allocate the basic
* structures and the ring buffer for communication with the backend, and
@ -2281,7 +2285,7 @@ static void blkfront_gather_backend_features(struct blkfront_info *info)
if (xenbus_read_unsigned(info->xbdev->otherend, "feature-discard", 0))
blkfront_setup_discard(info);
if (feature_persistent)
if (info->feature_persistent_parm)
info->feature_persistent =
!!xenbus_read_unsigned(info->xbdev->otherend,
"feature-persistent", 0);

19
drivers/bus/mhi/host/main.c
View File

@ -430,12 +430,25 @@ irqreturn_t mhi_irq_handler(int irq_number, void *dev)
{
struct mhi_event *mhi_event = dev;
struct mhi_controller *mhi_cntrl = mhi_event->mhi_cntrl;
struct mhi_event_ctxt *er_ctxt =
&mhi_cntrl->mhi_ctxt->er_ctxt[mhi_event->er_index];
struct mhi_event_ctxt *er_ctxt;
struct mhi_ring *ev_ring = &mhi_event->ring;
dma_addr_t ptr = le64_to_cpu(er_ctxt->rp);
dma_addr_t ptr;
void *dev_rp;
/*
* If CONFIG_DEBUG_SHIRQ is set, the IRQ handler will get invoked during __free_irq()
* and by that time mhi_ctxt() would've freed. So check for the existence of mhi_ctxt
* before handling the IRQs.
*/
if (!mhi_cntrl->mhi_ctxt) {
dev_dbg(&mhi_cntrl->mhi_dev->dev,
"mhi_ctxt has been freed\n");
return IRQ_HANDLED;
}
er_ctxt = &mhi_cntrl->mhi_ctxt->er_ctxt[mhi_event->er_index];
ptr = le64_to_cpu(er_ctxt->rp);
if (!is_valid_ring_ptr(ev_ring, ptr)) {
dev_err(&mhi_cntrl->mhi_dev->dev,
"Event ring rp points outside of the event ring\n");

16
drivers/clk/bcm/clk-raspberrypi.c
View File

@ -203,7 +203,7 @@ static unsigned long raspberrypi_fw_get_rate(struct clk_hw *hw,
ret = raspberrypi_clock_property(rpi->firmware, data,
RPI_FIRMWARE_GET_CLOCK_RATE, &val);
if (ret)
return ret;
return 0;
return val;
}
@ -220,7 +220,7 @@ static int raspberrypi_fw_set_rate(struct clk_hw *hw, unsigned long rate,
ret = raspberrypi_clock_property(rpi->firmware, data,
RPI_FIRMWARE_SET_CLOCK_RATE, &_rate);
if (ret)
dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d",
dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d\n",
clk_hw_get_name(hw), ret);
return ret;
@ -288,7 +288,7 @@ static struct clk_hw *raspberrypi_clk_register(struct raspberrypi_clk *rpi,
RPI_FIRMWARE_GET_MIN_CLOCK_RATE,
&min_rate);
if (ret) {
dev_err(rpi->dev, "Failed to get clock %d min freq: %d",
dev_err(rpi->dev, "Failed to get clock %d min freq: %d\n",
id, ret);
return ERR_PTR(ret);
}
@ -344,8 +344,13 @@ static int raspberrypi_discover_clocks(struct raspberrypi_clk *rpi,
struct rpi_firmware_get_clocks_response *clks;
int ret;
/*
* The firmware doesn't guarantee that the last element of
* RPI_FIRMWARE_GET_CLOCKS is zeroed. So allocate an additional
* zero element as sentinel.
*/
clks = devm_kcalloc(rpi->dev,
RPI_FIRMWARE_NUM_CLK_ID, sizeof(*clks),
RPI_FIRMWARE_NUM_CLK_ID + 1, sizeof(*clks),
GFP_KERNEL);
if (!clks)
return -ENOMEM;
@ -360,7 +365,8 @@ static int raspberrypi_discover_clocks(struct raspberrypi_clk *rpi,
struct raspberrypi_clk_variant *variant;
if (clks->id > RPI_FIRMWARE_NUM_CLK_ID) {
dev_err(rpi->dev, "Unknown clock id: %u", clks->id);
dev_err(rpi->dev, "Unknown clock id: %u (max: %u)\n",
clks->id, RPI_FIRMWARE_NUM_CLK_ID);
return -EINVAL;
}

3
drivers/clk/clk.c
View File

@ -840,10 +840,9 @@ static void clk_core_unprepare(struct clk_core *core)
if (core->ops->unprepare)
core->ops->unprepare(core->hw);
clk_pm_runtime_put(core);
trace_clk_unprepare_complete(core);
clk_core_unprepare(core->parent);
clk_pm_runtime_put(core);
}
static void clk_core_unprepare_lock(struct clk_core *core)

1
drivers/clk/ti/clk.c
View File

@ -135,6 +135,7 @@ static struct device_node *ti_find_clock_provider(struct device_node *from,
continue;
if (!strncmp(n, tmp, strlen(tmp))) {
of_node_get(np);
found = true;
break;
}

3
drivers/dma-buf/dma-resv.c
View File

@ -295,7 +295,8 @@ void dma_resv_add_fence(struct dma_resv *obj, struct dma_fence *fence,
enum dma_resv_usage old_usage;
dma_resv_list_entry(fobj, i, obj, &old, &old_usage);
if ((old->context == fence->context && old_usage >= usage) ||
if ((old->context == fence->context && old_usage >= usage &&
dma_fence_is_later(fence, old)) ||
dma_fence_is_signaled(old)) {
dma_resv_list_set(fobj, i, fence, usage);
dma_fence_put(old);

31
drivers/firmware/efi/capsule-loader.c
View File

@ -242,29 +242,6 @@ failed:
return ret;
}
/**
* efi_capsule_flush - called by file close or file flush
* @file: file pointer
* @id: not used
*
* If a capsule is being partially uploaded then calling this function
* will be treated as upload termination and will free those completed
* buffer pages and -ECANCELED will be returned.
**/
static int efi_capsule_flush(struct file *file, fl_owner_t id)
{
int ret = 0;
struct capsule_info *cap_info = file->private_data;
if (cap_info->index > 0) {
pr_err("capsule upload not complete\n");
efi_free_all_buff_pages(cap_info);
ret = -ECANCELED;
}
return ret;
}
/**
* efi_capsule_release - called by file close
* @inode: not used
@ -277,6 +254,13 @@ static int efi_capsule_release(struct inode *inode, struct file *file)
{
struct capsule_info *cap_info = file->private_data;
if (cap_info->index > 0 &&
(cap_info->header.headersize == 0 ||
cap_info->count < cap_info->total_size)) {
pr_err("capsule upload not complete\n");
efi_free_all_buff_pages(cap_info);
}
kfree(cap_info->pages);
kfree(cap_info->phys);
kfree(file->private_data);
@ -324,7 +308,6 @@ static const struct file_operations efi_capsule_fops = {
.owner = THIS_MODULE,
.open = efi_capsule_open,
.write = efi_capsule_write,
.flush = efi_capsule_flush,
.release = efi_capsule_release,
.llseek = no_llseek,
};

7
drivers/firmware/efi/libstub/Makefile
View File

@ -37,6 +37,13 @@ KBUILD_CFLAGS := $(cflags-y) -Os -DDISABLE_BRANCH_PROFILING \
$(call cc-option,-fno-addrsig) \
-D__DISABLE_EXPORTS
#
# struct randomization only makes sense for Linux internal types, which the EFI
# stub code never touches, so let's turn off struct randomization for the stub
# altogether
#
KBUILD_CFLAGS := $(filter-out $(RANDSTRUCT_CFLAGS), $(KBUILD_CFLAGS))
# remove SCS flags from all objects in this directory
KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS))
# disable LTO

1
drivers/firmware/efi/libstub/x86-stub.c
View File

@ -220,7 +220,6 @@ adjust_memory_range_protection(unsigned long start, unsigned long size)
unsigned long end, next;
unsigned long rounded_start, rounded_end;
unsigned long unprotect_start, unprotect_size;
int has_system_memory = 0;
if (efi_dxe_table == NULL)
return;

10
drivers/gpio/gpio-104-dio-48e.c
View File

@ -164,6 +164,7 @@ static void dio48e_irq_mask(struct irq_data *data)
dio48egpio->irq_mask &= ~BIT(0);
else
dio48egpio->irq_mask &= ~BIT(1);
gpiochip_disable_irq(chip, offset);
if (!dio48egpio->irq_mask)
/* disable interrupts */
@ -191,6 +192,7 @@ static void dio48e_irq_unmask(struct irq_data *data)
iowrite8(0x00, &dio48egpio->reg->enable_interrupt);
}
gpiochip_enable_irq(chip, offset);
if (offset == 19)
dio48egpio->irq_mask |= BIT(0);
else
@ -213,12 +215,14 @@ static int dio48e_irq_set_type(struct irq_data *data, unsigned int flow_type)
return 0;
}
static struct irq_chip dio48e_irqchip = {
static const struct irq_chip dio48e_irqchip = {
.name = "104-dio-48e",
.irq_ack = dio48e_irq_ack,
.irq_mask = dio48e_irq_mask,
.irq_unmask = dio48e_irq_unmask,
.irq_set_type = dio48e_irq_set_type
.irq_set_type = dio48e_irq_set_type,
.flags = IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static irqreturn_t dio48e_irq_handler(int irq, void *dev_id)
@ -322,7 +326,7 @@ static int dio48e_probe(struct device *dev, unsigned int id)
dio48egpio->chip.set_multiple = dio48e_gpio_set_multiple;
girq = &dio48egpio->chip.irq;
girq->chip = &dio48e_irqchip;
gpio_irq_chip_set_chip(girq, &dio48e_irqchip);
/* This will let us handle the parent IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;

10
drivers/gpio/gpio-104-idi-48.c
View File

@ -113,6 +113,7 @@ static void idi_48_irq_mask(struct irq_data *data)
spin_lock_irqsave(&idi48gpio->lock, flags);
idi48gpio->irq_mask[boundary] &= ~mask;
gpiochip_disable_irq(chip, offset);
/* Exit early if there are still input lines with IRQ unmasked */
if (idi48gpio->irq_mask[boundary])
@ -140,6 +141,7 @@ static void idi_48_irq_unmask(struct irq_data *data)
prev_irq_mask = idi48gpio->irq_mask[boundary];
gpiochip_enable_irq(chip, offset);
idi48gpio->irq_mask[boundary] |= mask;
/* Exit early if IRQ was already unmasked for this boundary */
@ -164,12 +166,14 @@ static int idi_48_irq_set_type(struct irq_data *data, unsigned int flow_type)
return 0;
}
static struct irq_chip idi_48_irqchip = {
static const struct irq_chip idi_48_irqchip = {
.name = "104-idi-48",
.irq_ack = idi_48_irq_ack,
.irq_mask = idi_48_irq_mask,
.irq_unmask = idi_48_irq_unmask,
.irq_set_type = idi_48_irq_set_type
.irq_set_type = idi_48_irq_set_type,
.flags = IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static irqreturn_t idi_48_irq_handler(int irq, void *dev_id)
@ -267,7 +271,7 @@ static int idi_48_probe(struct device *dev, unsigned int id)
idi48gpio->chip.get_multiple = idi_48_gpio_get_multiple;
girq = &idi48gpio->chip.irq;
girq->chip = &idi_48_irqchip;
gpio_irq_chip_set_chip(girq, &idi_48_irqchip);
/* This will let us handle the parent IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;

18
drivers/gpio/gpio-104-idio-16.c
View File

@ -174,10 +174,11 @@ static void idio_16_irq_mask(struct irq_data *data)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
struct idio_16_gpio *const idio16gpio = gpiochip_get_data(chip);
const unsigned long mask = BIT(irqd_to_hwirq(data));
const unsigned long offset = irqd_to_hwirq(data);
unsigned long flags;
idio16gpio->irq_mask &= ~mask;
idio16gpio->irq_mask &= ~BIT(offset);
gpiochip_disable_irq(chip, offset);
if (!idio16gpio->irq_mask) {
raw_spin_lock_irqsave(&idio16gpio->lock, flags);
@ -192,11 +193,12 @@ static void idio_16_irq_unmask(struct irq_data *data)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
struct idio_16_gpio *const idio16gpio = gpiochip_get_data(chip);
const unsigned long mask = BIT(irqd_to_hwirq(data));
const unsigned long offset = irqd_to_hwirq(data);
const unsigned long prev_irq_mask = idio16gpio->irq_mask;
unsigned long flags;
idio16gpio->irq_mask |= mask;
gpiochip_enable_irq(chip, offset);
idio16gpio->irq_mask |= BIT(offset);
if (!prev_irq_mask) {
raw_spin_lock_irqsave(&idio16gpio->lock, flags);
@ -217,12 +219,14 @@ static int idio_16_irq_set_type(struct irq_data *data, unsigned int flow_type)
return 0;
}
static struct irq_chip idio_16_irqchip = {
static const struct irq_chip idio_16_irqchip = {
.name = "104-idio-16",
.irq_ack = idio_16_irq_ack,
.irq_mask = idio_16_irq_mask,
.irq_unmask = idio_16_irq_unmask,
.irq_set_type = idio_16_irq_set_type
.irq_set_type = idio_16_irq_set_type,
.flags = IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static irqreturn_t idio_16_irq_handler(int irq, void *dev_id)
@ -299,7 +303,7 @@ static int idio_16_probe(struct device *dev, unsigned int id)
idio16gpio->out_state = 0xFFFF;
girq = &idio16gpio->chip.irq;
girq->chip = &idio_16_irqchip;
gpio_irq_chip_set_chip(girq, &idio_16_irqchip);
/* This will let us handle the parent IRQ in the driver */
girq->parent_handler = NULL;
girq->num_parents = 0;

9
drivers/gpio/gpio-mockup.c
View File

@ -373,6 +373,13 @@ static void gpio_mockup_debugfs_setup(struct device *dev,
}
}
static void gpio_mockup_debugfs_cleanup(void *data)
{
struct gpio_mockup_chip *chip = data;
debugfs_remove_recursive(chip->dbg_dir);
}
static void gpio_mockup_dispose_mappings(void *data)
{
struct gpio_mockup_chip *chip = data;
@ -455,7 +462,7 @@ static int gpio_mockup_probe(struct platform_device *pdev)
gpio_mockup_debugfs_setup(dev, chip);
return 0;
return devm_add_action_or_reset(dev, gpio_mockup_debugfs_cleanup, chip);
}
static const struct of_device_id gpio_mockup_of_match[] = {

8
drivers/gpio/gpio-pca953x.c
View File

@ -1175,7 +1175,9 @@ static int pca953x_suspend(struct device *dev)
{
struct pca953x_chip *chip = dev_get_drvdata(dev);
mutex_lock(&chip->i2c_lock);
regcache_cache_only(chip->regmap, true);
mutex_unlock(&chip->i2c_lock);
if (atomic_read(&chip->wakeup_path))
device_set_wakeup_path(dev);
@ -1198,13 +1200,17 @@ static int pca953x_resume(struct device *dev)
}
}
mutex_lock(&chip->i2c_lock);
regcache_cache_only(chip->regmap, false);
regcache_mark_dirty(chip->regmap);
ret = pca953x_regcache_sync(dev);
if (ret)
if (ret) {
mutex_unlock(&chip->i2c_lock);
return ret;
}
ret = regcache_sync(chip->regmap);
mutex_unlock(&chip->i2c_lock);
if (ret) {
dev_err(dev, "Failed to restore register map: %d\n", ret);
return ret;

11
drivers/gpio/gpio-pxa.c
View File

@ -661,24 +661,17 @@ static int pxa_gpio_probe(struct platform_device *pdev)
if (IS_ERR(gpio_reg_base))
return PTR_ERR(gpio_reg_base);
clk = clk_get(&pdev->dev, NULL);
clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "Error %ld to get gpio clock\n",
PTR_ERR(clk));
return PTR_ERR(clk);
}
ret = clk_prepare_enable(clk);
if (ret) {
clk_put(clk);
return ret;
}
/* Initialize GPIO chips */
ret = pxa_init_gpio_chip(pchip, pxa_last_gpio + 1, gpio_reg_base);
if (ret) {
clk_put(clk);
if (ret)
return ret;
}
/* clear all GPIO edge detects */
for_each_gpio_bank(gpio, c, pchip) {

Some files were not shown because too many files have changed in this diff Show More