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Merge branch 'sched/urgent' into sched/core, to pick up fixes and refresh the branch 

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2023-10-07 11:32:24 +02:00
parent d4d6596b43 9e0bc36ab0
commit 8db30574db
950 changed files with 8580 additions and 5108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Documentation/admin-guide/cgroup-v1/memory.rst
View File

@ -92,6 +92,13 @@ Brief summary of control files.
memory.oom_control set/show oom controls.
memory.numa_stat show the number of memory usage per numa
node
memory.kmem.limit_in_bytes Deprecated knob to set and read the kernel
memory hard limit. Kernel hard limit is not
supported since 5.16. Writing any value to
do file will not have any effect same as if
nokmem kernel parameter was specified.
Kernel memory is still charged and reported
by memory.kmem.usage_in_bytes.
memory.kmem.usage_in_bytes show current kernel memory allocation
memory.kmem.failcnt show the number of kernel memory usage
hits limits

12
Documentation/arch/arm64/cpu-feature-registers.rst
View File

@ -175,6 +175,8 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
| SME | [27-24] | y |
+------------------------------+---------+---------+
| MTE | [11-8] | y |
+------------------------------+---------+---------+
| SSBS | [7-4] | y |
@ -288,8 +290,18 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
| CSSC | [55-52] | y |
+------------------------------+---------+---------+
| RPRFM | [51-48] | y |
+------------------------------+---------+---------+
| BC | [23-20] | y |
+------------------------------+---------+---------+
| MOPS | [19-16] | y |
+------------------------------+---------+---------+
| APA3 | [15-12] | y |
+------------------------------+---------+---------+
| GPA3 | [11-8] | y |
+------------------------------+---------+---------+
| RPRES | [7-4] | y |
+------------------------------+---------+---------+
| WFXT | [3-0] | y |

3
Documentation/arch/arm64/elf_hwcaps.rst
View File

@ -305,6 +305,9 @@ HWCAP2_SMEF16F16
HWCAP2_MOPS
Functionality implied by ID_AA64ISAR2_EL1.MOPS == 0b0001.
HWCAP2_HBC
Functionality implied by ID_AA64ISAR2_EL1.BC == 0b0001.
4. Unused AT_HWCAP bits
-----------------------

4
Documentation/arch/loongarch/introduction.rst
View File

@ -381,9 +381,9 @@ Documentation of LoongArch ISA:
Documentation of LoongArch ELF psABI:
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.00-CN.pdf (in Chinese)
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.01-CN.pdf (in Chinese)
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.00-EN.pdf (in English)
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.01-EN.pdf (in English)
Linux kernel repository of Loongson and LoongArch:

1
Documentation/devicetree/bindings/ata/pata-common.yaml
View File

@ -38,6 +38,7 @@ patternProperties:
ID number 0 and the slave drive will have ID number 1. The PATA port
nodes will be named "ide-port".
type: object
additionalProperties: false
properties:
reg:

11
Documentation/devicetree/bindings/clock/renesas,5p35023.yaml
View File

@ -37,6 +37,9 @@ properties:
maxItems: 1
'#clock-cells':
description:
The index in the assigned-clocks is mapped to the output clock as below
0 - REF, 1 - SE1, 2 - SE2, 3 - SE3, 4 - DIFF1, 5 - DIFF2.
const: 1
clocks:
@ -68,7 +71,7 @@ examples:
reg = <0x68>;
#clock-cells = <1>;
clocks = <&x1_x2>;
clocks = <&x1>;
renesas,settings = [
80 00 11 19 4c 02 23 7f 83 19 08 a9 5f 25 24 bf
@ -79,8 +82,8 @@ examples:
assigned-clocks = <&versa3 0>, <&versa3 1>,
<&versa3 2>, <&versa3 3>,
<&versa3 4>, <&versa3 5>;
assigned-clock-rates = <12288000>, <25000000>,
<12000000>, <11289600>,
<11289600>, <24000000>;
assigned-clock-rates = <24000000>, <11289600>,
<11289600>, <12000000>,
<25000000>, <12288000>;
};
};

5
Documentation/devicetree/bindings/i2c/i2c-mxs.yaml
View File

@ -9,6 +9,9 @@ title: Freescale MXS Inter IC (I2C) Controller
maintainers:
- Shawn Guo <shawnguo@kernel.org>
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
properties:
compatible:
enum:
@ -37,7 +40,7 @@ required:
- dmas
- dma-names
additionalProperties: false
unevaluatedProperties: false
examples:
- |

43
Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
View File

@ -11,11 +11,16 @@ maintainers:
properties:
compatible:
items:
- enum:
- loongson,ls2k0500-pmc
- loongson,ls2k1000-pmc
- const: syscon
oneOf:
- items:
- const: loongson,ls2k0500-pmc
- const: syscon
- items:
- enum:
- loongson,ls2k1000-pmc
- loongson,ls2k2000-pmc
- const: loongson,ls2k0500-pmc
- const: syscon
reg:
maxItems: 1
@ -32,6 +37,18 @@ properties:
addition, the PM need according to it to indicate that current
SoC whether support Suspend To RAM.
syscon-poweroff:
$ref: /schemas/power/reset/syscon-poweroff.yaml#
type: object
description:
Node for power off method
syscon-reboot:
$ref: /schemas/power/reset/syscon-reboot.yaml#
type: object
description:
Node for reboot method
required:
- compatible
- reg
@ -44,9 +61,23 @@ examples:
#include <dt-bindings/interrupt-controller/irq.h>
power-management@1fe27000 {
compatible = "loongson,ls2k1000-pmc", "syscon";
compatible = "loongson,ls2k1000-pmc", "loongson,ls2k0500-pmc", "syscon";
reg = <0x1fe27000 0x58>;
interrupt-parent = <&liointc1>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
loongson,suspend-address = <0x0 0x1c000500>;
syscon-reboot {
compatible = "syscon-reboot";
offset = <0x30>;
mask = <0x1>;
};
syscon-poweroff {
compatible = "syscon-poweroff";
regmap = <&pmc>;
offset = <0x14>;
mask = <0x3c00>;
value = <0x3c00>;
};
};

7
Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml
View File

@ -22,6 +22,13 @@ properties:
- const: fsl,imx35-cspi
- const: fsl,imx51-ecspi
- const: fsl,imx53-ecspi
- items:
- enum:
- fsl,imx25-cspi
- fsl,imx50-cspi
- fsl,imx51-cspi
- fsl,imx53-cspi
- const: fsl,imx35-cspi
- items:
- const: fsl,imx8mp-ecspi
- const: fsl,imx6ul-ecspi

1
Documentation/filesystems/btrfs.rst
View File

@ -37,7 +37,6 @@ For more information please refer to the documentation site or wiki
https://btrfs.readthedocs.io
https://btrfs.wiki.kernel.org
that maintains information about administration tasks, frequently asked
questions, use cases, mount options, comprehensible changelogs, features,

96
Documentation/filesystems/porting.rst
View File

@ -949,3 +949,99 @@ mmap_lock held. All in-tree users have been audited and do not seem to
depend on the mmap_lock being held, but out of tree users should verify
for themselves. If they do need it, they can return VM_FAULT_RETRY to
be called with the mmap_lock held.
---
**mandatory**
The order of opening block devices and matching or creating superblocks has
changed.
The old logic opened block devices first and then tried to find a
suitable superblock to reuse based on the block device pointer.
The new logic tries to find a suitable superblock first based on the device
number, and opening the block device afterwards.
Since opening block devices cannot happen under s_umount because of lock
ordering requirements s_umount is now dropped while opening block devices and
reacquired before calling fill_super().
In the old logic concurrent mounters would find the superblock on the list of
superblocks for the filesystem type. Since the first opener of the block device
would hold s_umount they would wait until the superblock became either born or
was discarded due to initialization failure.
Since the new logic drops s_umount concurrent mounters could grab s_umount and
would spin. Instead they are now made to wait using an explicit wait-wake
mechanism without having to hold s_umount.
---
**mandatory**
The holder of a block device is now the superblock.
The holder of a block device used to be the file_system_type which wasn't
particularly useful. It wasn't possible to go from block device to owning
superblock without matching on the device pointer stored in the superblock.
This mechanism would only work for a single device so the block layer couldn't
find the owning superblock of any additional devices.
In the old mechanism reusing or creating a superblock for a racing mount(2) and
umount(2) relied on the file_system_type as the holder. This was severly
underdocumented however:
(1) Any concurrent mounter that managed to grab an active reference on an
existing superblock was made to wait until the superblock either became
ready or until the superblock was removed from the list of superblocks of
the filesystem type. If the superblock is ready the caller would simple
reuse it.
(2) If the mounter came after deactivate_locked_super() but before
the superblock had been removed from the list of superblocks of the
filesystem type the mounter would wait until the superblock was shutdown,
reuse the block device and allocate a new superblock.
(3) If the mounter came after deactivate_locked_super() and after
the superblock had been removed from the list of superblocks of the
filesystem type the mounter would reuse the block device and allocate a new
superblock (the bd_holder point may still be set to the filesystem type).
Because the holder of the block device was the file_system_type any concurrent
mounter could open the block devices of any superblock of the same
file_system_type without risking seeing EBUSY because the block device was
still in use by another superblock.
Making the superblock the owner of the block device changes this as the holder
is now a unique superblock and thus block devices associated with it cannot be
reused by concurrent mounters. So a concurrent mounter in (2) could suddenly
see EBUSY when trying to open a block device whose holder was a different
superblock.
The new logic thus waits until the superblock and the devices are shutdown in
->kill_sb(). Removal of the superblock from the list of superblocks of the
filesystem type is now moved to a later point when the devices are closed:
(1) Any concurrent mounter managing to grab an active reference on an existing
superblock is made to wait until the superblock is either ready or until
the superblock and all devices are shutdown in ->kill_sb(). If the
superblock is ready the caller will simply reuse it.
(2) If the mounter comes after deactivate_locked_super() but before
the superblock has been removed from the list of superblocks of the
filesystem type the mounter is made to wait until the superblock and the
devices are shut down in ->kill_sb() and the superblock is removed from the
list of superblocks of the filesystem type. The mounter will allocate a new
superblock and grab ownership of the block device (the bd_holder pointer of
the block device will be set to the newly allocated superblock).
(3) This case is now collapsed into (2) as the superblock is left on the list
of superblocks of the filesystem type until all devices are shutdown in
->kill_sb(). In other words, if the superblock isn't on the list of
superblock of the filesystem type anymore then it has given up ownership of
all associated block devices (the bd_holder pointer is NULL).
As this is a VFS level change it has no practical consequences for filesystems
other than that all of them must use one of the provided kill_litter_super(),
kill_anon_super(), or kill_block_super() helpers.

26
Documentation/kbuild/kconfig-language.rst
View File

@ -573,6 +573,32 @@ above, leading to:
bool "Support for foo hardware"
depends on ARCH_FOO_VENDOR || COMPILE_TEST
Optional dependencies
~~~~~~~~~~~~~~~~~~~~~
Some drivers are able to optionally use a feature from another module
or build cleanly with that module disabled, but cause a link failure
when trying to use that loadable module from a built-in driver.
The most common way to express this optional dependency in Kconfig logic
uses the slightly counterintuitive::
config FOO
tristate "Support for foo hardware"
depends on BAR || !BAR
This means that there is either a dependency on BAR that disallows
the combination of FOO=y with BAR=m, or BAR is completely disabled.
For a more formalized approach if there are multiple drivers that have
the same dependency, a helper symbol can be used, like::
config FOO
tristate "Support for foo hardware"
depends on BAR_OPTIONAL
config BAR_OPTIONAL
def_tristate BAR || !BAR
Kconfig recursive dependency limitations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

4
Documentation/networking/ax25.rst
View File

@ -7,9 +7,9 @@ AX.25
To use the amateur radio protocols within Linux you will need to get a
suitable copy of the AX.25 Utilities. More detailed information about
AX.25, NET/ROM and ROSE, associated programs and utilities can be
found on http://www.linux-ax25.org.
found on https://linux-ax25.in-berlin.de.
There is an active mailing list for discussing Linux amateur radio matters
There is a mailing list for discussing Linux amateur radio matters
called linux-hams@vger.kernel.org. To subscribe to it, send a message to
majordomo@vger.kernel.org with the words "subscribe linux-hams" in the body
of the message, the subject field is ignored. You don't need to be

1
Documentation/process/embargoed-hardware-issues.rst
View File

@ -251,6 +251,7 @@ an involved disclosed party. The current ambassadors list:
IBM Z Christian Borntraeger <borntraeger@de.ibm.com>
Intel Tony Luck <tony.luck@intel.com>
Qualcomm Trilok Soni <tsoni@codeaurora.org>
RISC-V Palmer Dabbelt <palmer@dabbelt.com>
Samsung Javier González <javier.gonz@samsung.com>
Microsoft James Morris <jamorris@linux.microsoft.com>

4
Documentation/sound/designs/midi-2.0.rst
View File

@ -74,8 +74,8 @@ topology based on those information. When the device is older and
doesn't respond to the new UMP inquiries, the driver falls back and
builds the topology based on Group Terminal Block (GTB) information
from the USB descriptor. Some device might be screwed up by the
unexpected UMP command; in such a case, pass `midi2_probe=0` option to
snd-usb-audio driver for skipping the UMP v1.1 inquiries.
unexpected UMP command; in such a case, pass `midi2_ump_probe=0`
option to snd-usb-audio driver for skipping the UMP v1.1 inquiries.
When the MIDI 2.0 device is probed, the kernel creates a rawmidi
device for each UMP Endpoint of the device. Its device name is

4
Documentation/translations/zh_CN/arch/loongarch/introduction.rst
View File

@ -344,9 +344,9 @@ LoongArch指令集架构的文档：
LoongArch的ELF psABI文档：
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.00-CN.pdf （中文版）
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.01-CN.pdf （中文版）
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.00-EN.pdf （英文版）
https://github.com/loongson/LoongArch-Documentation/releases/latest/download/LoongArch-ELF-ABI-v2.01-EN.pdf （英文版）
Loongson与LoongArch的Linux内核源码仓库：

49
MAINTAINERS
View File

@ -1662,7 +1662,7 @@ F: arch/arm*/include/asm/perf_event.h
F: arch/arm*/kernel/hw_breakpoint.c
F: arch/arm*/kernel/perf_*
F: drivers/perf/
F: include/linux/perf/arm_pmu.h
F: include/linux/perf/arm_pmu*.h
ARM PORT
M: Russell King <linux@armlinux.org.uk>
@ -1855,7 +1855,7 @@ F: Documentation/devicetree/bindings/phy/amlogic*
F: arch/arm/boot/dts/amlogic/
F: arch/arm/mach-meson/
F: arch/arm64/boot/dts/amlogic/
F: drivers/genpd/amlogic/
F: drivers/pmdomain/amlogic/
F: drivers/mmc/host/meson*
F: drivers/phy/amlogic/
F: drivers/pinctrl/meson/
@ -1918,7 +1918,7 @@ F: drivers/bluetooth/hci_bcm4377.c
F: drivers/clk/clk-apple-nco.c
F: drivers/cpufreq/apple-soc-cpufreq.c
F: drivers/dma/apple-admac.c
F: drivers/genpd/apple/
F: drivers/pmdomain/apple/
F: drivers/i2c/busses/i2c-pasemi-core.c
F: drivers/i2c/busses/i2c-pasemi-platform.c
F: drivers/iommu/apple-dart.c
@ -1963,12 +1963,12 @@ F: drivers/irqchip/irq-aspeed-i2c-ic.c
ARM/ASPEED MACHINE SUPPORT
M: Joel Stanley <joel@jms.id.au>
R: Andrew Jeffery <andrew@aj.id.au>
R: Andrew Jeffery <andrew@codeconstruct.com.au>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
S: Supported
Q: https://patchwork.ozlabs.org/project/linux-aspeed/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc.git
F: Documentation/devicetree/bindings/arm/aspeed/
F: arch/arm/boot/dts/aspeed/
F: arch/arm/mach-aspeed/
@ -2435,7 +2435,7 @@ F: arch/arm/mach-ux500/
F: drivers/clk/clk-nomadik.c
F: drivers/clocksource/clksrc-dbx500-prcmu.c
F: drivers/dma/ste_dma40*
F: drivers/genpd/st/ste-ux500-pm-domain.c
F: drivers/pmdomain/st/ste-ux500-pm-domain.c
F: drivers/hwspinlock/u8500_hsem.c
F: drivers/i2c/busses/i2c-nomadik.c
F: drivers/iio/adc/ab8500-gpadc.c
@ -2598,7 +2598,7 @@ F: arch/arm/include/debug/renesas-scif.S
F: arch/arm/mach-shmobile/
F: arch/arm64/boot/dts/renesas/
F: arch/riscv/boot/dts/renesas/
F: drivers/genpd/renesas/
F: drivers/pmdomain/renesas/
F: drivers/soc/renesas/
F: include/linux/soc/renesas/
K: \brenesas,
@ -3058,7 +3058,7 @@ F: Documentation/devicetree/bindings/peci/peci-aspeed.yaml
F: drivers/peci/controller/peci-aspeed.c
ASPEED PINCTRL DRIVERS
M: Andrew Jeffery <andrew@aj.id.au>
M: Andrew Jeffery <andrew@codeconstruct.com.au>
L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
L: linux-gpio@vger.kernel.org
@ -3075,7 +3075,7 @@ F: drivers/irqchip/irq-aspeed-scu-ic.c
F: include/dt-bindings/interrupt-controller/aspeed-scu-ic.h
ASPEED SD/MMC DRIVER
M: Andrew Jeffery <andrew@aj.id.au>
M: Andrew Jeffery <andrew@codeconstruct.com.au>
L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
L: linux-mmc@vger.kernel.org
@ -3344,7 +3344,7 @@ AX.25 NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
S: Maintained
W: http://www.linux-ax25.org/
W: https://linux-ax25.in-berlin.de
F: include/net/ax25.h
F: include/uapi/linux/ax25.h
F: net/ax25/
@ -4026,7 +4026,7 @@ F: arch/mips/kernel/*bmips*
F: drivers/irqchip/irq-bcm63*
F: drivers/irqchip/irq-bcm7*
F: drivers/irqchip/irq-brcmstb*
F: drivers/genpd/bcm/bcm63xx-power.c
F: drivers/pmdomain/bcm/bcm63xx-power.c
F: include/linux/bcm963xx_nvram.h
F: include/linux/bcm963xx_tag.h
@ -4082,7 +4082,7 @@ F: drivers/net/wireless/broadcom/brcm80211/
BROADCOM BRCMSTB GPIO DRIVER
M: Doug Berger <opendmb@gmail.com>
M: Florian Fainelli <florian.fainelli@broadcom>
M: Florian Fainelli <florian.fainelli@broadcom.com>
R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
S: Supported
F: Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.yaml
@ -4248,7 +4248,7 @@ R: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
L: linux-pm@vger.kernel.org
S: Maintained
T: git https://github.com/broadcom/stblinux.git
F: drivers/genpd/bcm/bcm-pmb.c
F: drivers/pmdomain/bcm/bcm-pmb.c
F: include/dt-bindings/soc/bcm-pmb.h
BROADCOM SPECIFIC AMBA DRIVER (BCMA)
@ -4378,7 +4378,6 @@ M: David Sterba <dsterba@suse.com>
L: linux-btrfs@vger.kernel.org
S: Maintained
W: https://btrfs.readthedocs.io
W: https://btrfs.wiki.kernel.org/
Q: https://patchwork.kernel.org/project/linux-btrfs/list/
C: irc://irc.libera.chat/btrfs
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git
@ -6646,9 +6645,9 @@ F: Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
F: drivers/gpu/drm/panel/panel-novatek-nt36672a.c
DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS
M: Ben Skeggs <bskeggs@redhat.com>
M: Karol Herbst <kherbst@redhat.com>
M: Lyude Paul <lyude@redhat.com>
M: Danilo Krummrich <dakr@redhat.com>
L: dri-devel@lists.freedesktop.org
L: nouveau@lists.freedesktop.org
S: Supported
@ -8729,7 +8728,7 @@ M: Ulf Hansson <ulf.hansson@linaro.org>
L: linux-pm@vger.kernel.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm.git
F: drivers/genpd/
F: drivers/pmdomain/
GENERIC RESISTIVE TOUCHSCREEN ADC DRIVER
M: Eugen Hristev <eugen.hristev@microchip.com>
@ -8875,7 +8874,7 @@ F: drivers/gpio/gpio-mockup.c
F: tools/testing/selftests/gpio/
GPIO REGMAP
R: Michael Walle <michael@walle.cc>
M: Michael Walle <michael@walle.cc>
S: Maintained
F: drivers/gpio/gpio-regmap.c
F: include/linux/gpio/regmap.h
@ -13617,6 +13616,7 @@ F: drivers/net/ethernet/mellanox/mlxfw/
MELLANOX HARDWARE PLATFORM SUPPORT
M: Hans de Goede <hdegoede@redhat.com>
M: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
M: Mark Gross <markgross@kernel.org>
M: Vadim Pasternak <vadimp@nvidia.com>
L: platform-driver-x86@vger.kernel.org
@ -14211,6 +14211,7 @@ F: drivers/platform/surface/surface_gpe.c
MICROSOFT SURFACE HARDWARE PLATFORM SUPPORT
M: Hans de Goede <hdegoede@redhat.com>
M: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
M: Mark Gross <markgross@kernel.org>
M: Maximilian Luz <luzmaximilian@gmail.com>
L: platform-driver-x86@vger.kernel.org
@ -14757,7 +14758,7 @@ NETROM NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
S: Maintained
W: http://www.linux-ax25.org/
W: https://linux-ax25.in-berlin.de
F: include/net/netrom.h
F: include/uapi/linux/netrom.h
F: net/netrom/
@ -17680,7 +17681,7 @@ L: linux-pm@vger.kernel.org
L: linux-arm-msm@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/power/avs/qcom,cpr.yaml
F: drivers/genpd/qcom/cpr.c
F: drivers/pmdomain/qcom/cpr.c
QUALCOMM CPUFREQ DRIVER MSM8996/APQ8096
M: Ilia Lin <ilia.lin@kernel.org>
@ -18608,7 +18609,7 @@ ROSE NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
S: Maintained
W: http://www.linux-ax25.org/
W: https://linux-ax25.in-berlin.de
F: include/net/rose.h
F: include/uapi/linux/rose.h
F: net/rose/
@ -20514,7 +20515,7 @@ STARFIVE JH71XX PMU CONTROLLER DRIVER
M: Walker Chen <walker.chen@starfivetech.com>
S: Supported
F: Documentation/devicetree/bindings/power/starfive*
F: drivers/genpd/starfive/jh71xx-pmu.c
F: drivers/pmdomain/starfive/jh71xx-pmu.c
F: include/dt-bindings/power/starfive,jh7110-pmu.h
STARFIVE SOC DRIVERS
@ -21339,7 +21340,7 @@ F: drivers/irqchip/irq-ti-sci-inta.c
F: drivers/irqchip/irq-ti-sci-intr.c
F: drivers/reset/reset-ti-sci.c
F: drivers/soc/ti/ti_sci_inta_msi.c
F: drivers/genpd/ti/ti_sci_pm_domains.c
F: drivers/pmdomain/ti/ti_sci_pm_domains.c
F: include/dt-bindings/soc/ti,sci_pm_domain.h
F: include/linux/soc/ti/ti_sci_inta_msi.h
F: include/linux/soc/ti/ti_sci_protocol.h
@ -21581,7 +21582,7 @@ L: linux-kernel@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
F: drivers/genpd/ti/omap_prm.c
F: drivers/pmdomain/ti/omap_prm.c
F: drivers/soc/ti/*
TI LM49xxx FAMILY ASoC CODEC DRIVERS
@ -23424,9 +23425,11 @@ F: drivers/platform/x86/x86-android-tablets/
X86 PLATFORM DRIVERS
M: Hans de Goede <hdegoede@redhat.com>
M: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
M: Mark Gross <markgross@kernel.org>
L: platform-driver-x86@vger.kernel.org
S: Maintained
Q: https://patchwork.kernel.org/project/platform-driver-x86/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
F: drivers/platform/olpc/
F: drivers/platform/x86/

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 6
PATCHLEVEL = 6
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc4
NAME = Hurr durr I'ma ninja sloth
# *DOCUMENTATION*

5
arch/arm/boot/dts/ti/omap/motorola-mapphone-common.dtsi
View File

@ -614,12 +614,12 @@
/* Configure pwm clock source for timers 8 & 9 */
&timer8 {
assigned-clocks = <&abe_clkctrl OMAP4_TIMER8_CLKCTRL 24>;
assigned-clock-parents = <&sys_clkin_ck>;
assigned-clock-parents = <&sys_32k_ck>;
};
&timer9 {
assigned-clocks = <&l4_per_clkctrl OMAP4_TIMER9_CLKCTRL 24>;
assigned-clock-parents = <&sys_clkin_ck>;
assigned-clock-parents = <&sys_32k_ck>;
};
/*
@ -640,6 +640,7 @@
&uart3 {
interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
&omap4_pmx_core 0x17c>;
overrun-throttle-ms = <500>;
};
&uart4 {

3
arch/arm/boot/dts/ti/omap/omap3-cpu-thermal.dtsi
View File

@ -12,8 +12,7 @@ cpu_thermal: cpu-thermal {
polling-delay = <1000>; /* milliseconds */
coefficients = <0 20000>;
/* sensor ID */
thermal-sensors = <&bandgap 0>;
thermal-sensors = <&bandgap>;
cpu_trips: trips {
cpu_alert0: cpu_alert {

5
arch/arm/boot/dts/ti/omap/omap4-cpu-thermal.dtsi
View File

@ -12,7 +12,10 @@ cpu_thermal: cpu_thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
/* sensor ID */
/*
* See 44xx files for single sensor addressing, omap5 and dra7 need
* also sensor ID for addressing.
*/
thermal-sensors = <&bandgap 0>;
cpu_trips: trips {

1
arch/arm/boot/dts/ti/omap/omap443x.dtsi
View File

@ -69,6 +69,7 @@
};
&cpu_thermal {
thermal-sensors = <&bandgap>;
coefficients = <0 20000>;
};

1
arch/arm/boot/dts/ti/omap/omap4460.dtsi
View File

@ -79,6 +79,7 @@
};
&cpu_thermal {
thermal-sensors = <&bandgap>;
coefficients = <348 (-9301)>;
};

2
arch/arm/include/asm/hardware/locomo.h
View File

@ -195,7 +195,7 @@ struct locomo_driver {
#define LOCOMO_DRIVER_NAME(_ldev) ((_ldev)->dev.driver->name)
void locomo_lcd_power(struct locomo_dev *, int, unsigned int);
extern void locomolcd_power(int on);
int locomo_driver_register(struct locomo_driver *);
void locomo_driver_unregister(struct locomo_driver *);

4
arch/arm/mach-omap2/pm44xx.c
View File

@ -99,7 +99,7 @@ static int omap4_pm_suspend(void)
* possible causes.
* http://www.spinics.net/lists/arm-kernel/msg218641.html
*/
pr_warn("A possible cause could be an old bootloader - try u-boot >= v2012.07\n");
pr_debug("A possible cause could be an old bootloader - try u-boot >= v2012.07\n");
} else {
pr_info("Successfully put all powerdomains to target state\n");
}
@ -257,7 +257,7 @@ int __init omap4_pm_init(void)
* http://www.spinics.net/lists/arm-kernel/msg218641.html
*/
if (cpu_is_omap44xx())
pr_warn("OMAP4 PM: u-boot >= v2012.07 is required for full PM support\n");
pr_debug("OMAP4 PM: u-boot >= v2012.07 is required for full PM support\n");
ret = pwrdm_for_each(pwrdms_setup, NULL);
if (ret) {

2
arch/arm/mach-sa1100/include/mach/collie.h
View File

@ -16,8 +16,6 @@
#include "hardware.h" /* Gives GPIO_MAX */
extern void locomolcd_power(int on);
#define COLLIE_SCOOP_GPIO_BASE (GPIO_MAX + 1)
#define COLLIE_GPIO_CHARGE_ON (COLLIE_SCOOP_GPIO_BASE + 0)
#define COLLIE_SCP_DIAG_BOOT1 SCOOP_GPCR_PA12

4
arch/arm/mm/cache-uniphier.c
View File

@ -58,11 +58,13 @@
((op & UNIPHIER_SSCOQM_S_MASK) == UNIPHIER_SSCOQM_S_RANGE)
/**
* uniphier_cache_data - UniPhier outer cache specific data
* struct uniphier_cache_data - UniPhier outer cache specific data
*
* @ctrl_base: virtual base address of control registers
* @rev_base: virtual base address of revision registers
* @op_base: virtual base address of operation registers
* @way_ctrl_base: virtual address of the way control registers for this
* SoC revision
* @way_mask: each bit specifies if the way is present
* @nsets: number of associativity sets
* @line_size: line size in bytes

2
arch/arm/xen/enlighten.c
View File

@ -207,7 +207,7 @@ static void xen_power_off(void)
static irqreturn_t xen_arm_callback(int irq, void *arg)
{
xen_hvm_evtchn_do_upcall();
xen_evtchn_do_upcall();
return IRQ_HANDLED;
}

1
arch/arm64/boot/dts/freescale/Makefile
View File

@ -66,6 +66,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-mx8menlo.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-nitrogen-r2.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-phg.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-phyboard-polis-rdk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-prt8mm.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-tqma8mqml-mba8mx.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw71xx-0x.dtb

32
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
View File

@ -26,7 +26,7 @@
port {
hdmi_connector_in: endpoint {
remote-endpoint = <&adv7533_out>;
remote-endpoint = <&adv7535_out>;
};
};
};
@ -72,6 +72,13 @@
enable-active-high;
};
reg_vddext_3v3: regulator-vddext-3v3 {
compatible = "regulator-fixed";
regulator-name = "VDDEXT_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm1 0 5000000 0>;
@ -317,15 +324,16 @@
hdmi@3d {
compatible = "adi,adv7535";
reg = <0x3d>, <0x3c>, <0x3e>, <0x3f>;
reg-names = "main", "cec", "edid", "packet";
reg = <0x3d>;
interrupt-parent = <&gpio1>;
interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
adi,dsi-lanes = <4>;
adi,input-depth = <8>;
adi,input-colorspace = "rgb";
adi,input-clock = "1x";
adi,input-style = <1>;
adi,input-justification = "evenly";
avdd-supply = <&buck5_reg>;
dvdd-supply = <&buck5_reg>;
pvdd-supply = <&buck5_reg>;
a2vdd-supply = <&buck5_reg>;
v3p3-supply = <&reg_vddext_3v3>;
v1p2-supply = <&buck5_reg>;
ports {
#address-cells = <1>;
@ -334,7 +342,7 @@
port@0 {
reg = <0>;
adv7533_in: endpoint {
adv7535_in: endpoint {
remote-endpoint = <&dsi_out>;
};
};
@ -342,7 +350,7 @@
port@1 {
reg = <1>;
adv7533_out: endpoint {
adv7535_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
@ -448,7 +456,7 @@
reg = <1>;
dsi_out: endpoint {
remote-endpoint = <&adv7533_in>;
remote-endpoint = <&adv7535_in>;
data-lanes = <1 2 3 4>;
};
};

5
arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
View File

@ -381,9 +381,10 @@
&sai3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sai3>;
assigned-clocks = <&clk IMX8MP_CLK_SAI3>;
assigned-clocks = <&clk IMX8MP_CLK_SAI3>,
<&clk IMX8MP_AUDIO_PLL2> ;
assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>;
assigned-clock-rates = <12288000>;
assigned-clock-rates = <12288000>, <361267200>;
fsl,sai-mclk-direction-output;
status = "okay";
};

6
arch/arm64/boot/dts/freescale/imx8mp.dtsi
View File

@ -790,6 +790,12 @@
reg = <IMX8MP_POWER_DOMAIN_AUDIOMIX>;
clocks = <&clk IMX8MP_CLK_AUDIO_ROOT>,
<&clk IMX8MP_CLK_AUDIO_AXI>;
assigned-clocks = <&clk IMX8MP_CLK_AUDIO_AHB>,
<&clk IMX8MP_CLK_AUDIO_AXI_SRC>;
assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_800M>,
<&clk IMX8MP_SYS_PLL1_800M>;
assigned-clock-rates = <400000000>,
<600000000>;
};
pgc_gpu2d: power-domain@6 {

2
arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
View File

@ -81,7 +81,7 @@
&gpio1 {
pmic-irq-hog {
gpio-hog;
gpios = <2 GPIO_ACTIVE_LOW>;
gpios = <3 GPIO_ACTIVE_LOW>;
input;
line-name = "PMIC_IRQ#";
};

10
arch/arm64/boot/dts/mediatek/mt8195.dtsi
View File

@ -2957,7 +2957,7 @@
clock-names = "merge","merge_async";
power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0xc000 0x1000>;
mediatek,merge-mute = <1>;
mediatek,merge-mute;
resets = <&vdosys1 MT8195_VDOSYS1_SW0_RST_B_MERGE0_DL_ASYNC>;
};
@ -2970,7 +2970,7 @@
clock-names = "merge","merge_async";
power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0xd000 0x1000>;
mediatek,merge-mute = <1>;
mediatek,merge-mute;
resets = <&vdosys1 MT8195_VDOSYS1_SW0_RST_B_MERGE1_DL_ASYNC>;
};
@ -2983,7 +2983,7 @@
clock-names = "merge","merge_async";
power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0xe000 0x1000>;
mediatek,merge-mute = <1>;
mediatek,merge-mute;
resets = <&vdosys1 MT8195_VDOSYS1_SW0_RST_B_MERGE2_DL_ASYNC>;
};
@ -2996,7 +2996,7 @@
clock-names = "merge","merge_async";
power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0xf000 0x1000>;
mediatek,merge-mute = <1>;
mediatek,merge-mute;
resets = <&vdosys1 MT8195_VDOSYS1_SW0_RST_B_MERGE3_DL_ASYNC>;
};
@ -3009,7 +3009,7 @@
clock-names = "merge","merge_async";
power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
mediatek,gce-client-reg = <&gce0 SUBSYS_1c11XXXX 0x0000 0x1000>;
mediatek,merge-fifo-en = <1>;
mediatek,merge-fifo-en;
resets = <&vdosys1 MT8195_VDOSYS1_SW0_RST_B_MERGE4_DL_ASYNC>;
};

2
arch/arm64/configs/defconfig
View File

@ -636,6 +636,7 @@ CONFIG_POWER_RESET_MSM=y
CONFIG_POWER_RESET_QCOM_PON=m
CONFIG_POWER_RESET_XGENE=y
CONFIG_POWER_RESET_SYSCON=y
CONFIG_POWER_RESET_SYSCON_POWEROFF=y
CONFIG_SYSCON_REBOOT_MODE=y
CONFIG_NVMEM_REBOOT_MODE=m
CONFIG_BATTERY_SBS=m
@ -1175,7 +1176,6 @@ CONFIG_COMMON_CLK_S2MPS11=y
CONFIG_COMMON_CLK_PWM=y
CONFIG_COMMON_CLK_RS9_PCIE=y
CONFIG_COMMON_CLK_VC5=y
CONFIG_COMMON_CLK_NPCM8XX=y
CONFIG_COMMON_CLK_BD718XX=m
CONFIG_CLK_RASPBERRYPI=m
CONFIG_CLK_IMX8MM=y

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

@ -663,7 +663,7 @@ static inline bool supports_clearbhb(int scope)
isar2 = read_sanitised_ftr_reg(SYS_ID_AA64ISAR2_EL1);
return cpuid_feature_extract_unsigned_field(isar2,
ID_AA64ISAR2_EL1_BC_SHIFT);
ID_AA64ISAR2_EL1_CLRBHB_SHIFT);
}
const struct cpumask *system_32bit_el0_cpumask(void);

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

@ -28,7 +28,7 @@ pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
#define arch_make_huge_pte arch_make_huge_pte
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
pte_t *ptep, pte_t pte, unsigned long sz);
#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,

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

@ -118,7 +118,7 @@ void deactivate_traps_vhe_put(struct kvm_vcpu *vcpu);
u64 __guest_enter(struct kvm_vcpu *vcpu);
bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt);
bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt, u32 func_id);
#ifdef __KVM_NVHE_HYPERVISOR__
void __noreturn __hyp_do_panic(struct kvm_cpu_context *host_ctxt, u64 spsr,

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

@ -222,7 +222,8 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_EL1_CSSC_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_EL1_RPRFM_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_HIGHER_SAFE, ID_AA64ISAR2_EL1_BC_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_EL1_CLRBHB_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_EL1_BC_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_EL1_MOPS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_PTR_AUTH),
FTR_STRICT, FTR_EXACT, ID_AA64ISAR2_EL1_APA3_SHIFT, 4, 0),

2
arch/arm64/kvm/hyp/include/nvhe/ffa.h
View File

@ -12,6 +12,6 @@
#define FFA_MAX_FUNC_NUM 0x7F
int hyp_ffa_init(void *pages);
bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt);
bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt, u32 func_id);
#endif /* __KVM_HYP_FFA_H */

3
arch/arm64/kvm/hyp/nvhe/ffa.c
View File

@ -634,9 +634,8 @@ out_handled:
return true;
}
bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt, u32 func_id)
{
DECLARE_REG(u64, func_id, host_ctxt, 0);
struct arm_smccc_res res;
/*

1
arch/arm64/kvm/hyp/nvhe/hyp-init.S
View File

@ -57,6 +57,7 @@ __do_hyp_init:
cmp x0, #HVC_STUB_HCALL_NR
b.lo __kvm_handle_stub_hvc
bic x0, x0, #ARM_SMCCC_CALL_HINTS
mov x3, #KVM_HOST_SMCCC_FUNC(__kvm_hyp_init)
cmp x0, x3
b.eq 1f

8
arch/arm64/kvm/hyp/nvhe/hyp-main.c
View File

@ -368,6 +368,7 @@ static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
if (static_branch_unlikely(&kvm_protected_mode_initialized))
hcall_min = __KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize;
id &= ~ARM_SMCCC_CALL_HINTS;
id -= KVM_HOST_SMCCC_ID(0);
if (unlikely(id < hcall_min || id >= ARRAY_SIZE(host_hcall)))
@ -392,11 +393,14 @@ static void default_host_smc_handler(struct kvm_cpu_context *host_ctxt)
static void handle_host_smc(struct kvm_cpu_context *host_ctxt)
{
DECLARE_REG(u64, func_id, host_ctxt, 0);
bool handled;
handled = kvm_host_psci_handler(host_ctxt);
func_id &= ~ARM_SMCCC_CALL_HINTS;
handled = kvm_host_psci_handler(host_ctxt, func_id);
if (!handled)
handled = kvm_host_ffa_handler(host_ctxt);
handled = kvm_host_ffa_handler(host_ctxt, func_id);
if (!handled)
default_host_smc_handler(host_ctxt);

3
arch/arm64/kvm/hyp/nvhe/psci-relay.c
View File

@ -273,9 +273,8 @@ static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_
}
}
bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt)
bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt, u32 func_id)
{
DECLARE_REG(u64, func_id, host_ctxt, 0);
unsigned long ret;
switch (kvm_host_psci_config.version) {

3
arch/arm64/kvm/mmu.c
View File

@ -652,6 +652,9 @@ int hyp_alloc_private_va_range(size_t size, unsigned long *haddr)
mutex_unlock(&kvm_hyp_pgd_mutex);
if (!ret)
*haddr = base;
return ret;
}

23
arch/arm64/mm/hugetlbpage.c
View File

@ -241,15 +241,8 @@ static void clear_flush(struct mm_struct *mm,
flush_tlb_range(&vma, saddr, addr);
}
static inline struct folio *hugetlb_swap_entry_to_folio(swp_entry_t entry)
{
VM_BUG_ON(!is_migration_entry(entry) && !is_hwpoison_entry(entry));
return page_folio(pfn_to_page(swp_offset_pfn(entry)));
}
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
pte_t *ptep, pte_t pte, unsigned long sz)
{
size_t pgsize;
int i;
@ -257,13 +250,10 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
unsigned long pfn, dpfn;
pgprot_t hugeprot;
ncontig = num_contig_ptes(sz, &pgsize);
if (!pte_present(pte)) {
struct folio *folio;
folio = hugetlb_swap_entry_to_folio(pte_to_swp_entry(pte));
ncontig = num_contig_ptes(folio_size(folio), &pgsize);
for (i = 0; i < ncontig; i++, ptep++)
for (i = 0; i < ncontig; i++, ptep++, addr += pgsize)
set_pte_at(mm, addr, ptep, pte);
return;
}
@ -273,7 +263,6 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
return;
}
ncontig = find_num_contig(mm, addr, ptep, &pgsize);
pfn = pte_pfn(pte);
dpfn = pgsize >> PAGE_SHIFT;
hugeprot = pte_pgprot(pte);
@ -571,5 +560,7 @@ pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr
void huge_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep,
pte_t old_pte, pte_t pte)
{
set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
unsigned long psize = huge_page_size(hstate_vma(vma));
set_huge_pte_at(vma->vm_mm, addr, ptep, pte, psize);
}

6
arch/arm64/tools/sysreg
View File

@ -1347,7 +1347,11 @@ UnsignedEnum 51:48 RPRFM
0b0000 NI
0b0001 IMP
EndEnum
Res0 47:28
Res0 47:32
UnsignedEnum 31:28 CLRBHB
0b0000 NI
0b0001 IMP
EndEnum
UnsignedEnum 27:24 PAC_frac
0b0000 NI
0b0001 IMP

4
arch/ia64/kernel/acpi.c
View File

@ -907,3 +907,7 @@ EXPORT_SYMBOL(acpi_unregister_ioapic);
* TBD when IA64 starts to support suspend...
*/
int acpi_suspend_lowlevel(void) { return 0; }
void acpi_proc_quirk_mwait_check(void)
{
}

14
arch/loongarch/include/asm/addrspace.h
View File

@ -19,7 +19,7 @@
*/
#ifndef __ASSEMBLY__
#ifndef PHYS_OFFSET
#define PHYS_OFFSET _AC(0, UL)
#define PHYS_OFFSET _UL(0)
#endif
extern unsigned long vm_map_base;
#endif /* __ASSEMBLY__ */
@ -43,7 +43,7 @@ extern unsigned long vm_map_base;
* Memory above this physical address will be considered highmem.
*/
#ifndef HIGHMEM_START
#define HIGHMEM_START (_AC(1, UL) << _AC(DMW_PABITS, UL))
#define HIGHMEM_START (_UL(1) << _UL(DMW_PABITS))
#endif
#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
@ -65,16 +65,16 @@ extern unsigned long vm_map_base;
#define _ATYPE_
#define _ATYPE32_
#define _ATYPE64_
#define _CONST64_(x) x
#else
#define _ATYPE_ __PTRDIFF_TYPE__
#define _ATYPE32_ int
#define _ATYPE64_ __s64
#ifdef CONFIG_64BIT
#define _CONST64_(x) x ## UL
#else
#define _CONST64_(x) x ## ULL
#endif
#ifdef CONFIG_64BIT
#define _CONST64_(x) _UL(x)
#else
#define _CONST64_(x) _ULL(x)
#endif
/*

9
arch/loongarch/include/asm/elf.h
View File

@ -111,6 +111,15 @@
#define R_LARCH_TLS_GD_HI20 98
#define R_LARCH_32_PCREL 99
#define R_LARCH_RELAX 100
#define R_LARCH_DELETE 101
#define R_LARCH_ALIGN 102
#define R_LARCH_PCREL20_S2 103
#define R_LARCH_CFA 104
#define R_LARCH_ADD6 105
#define R_LARCH_SUB6 106
#define R_LARCH_ADD_ULEB128 107
#define R_LARCH_SUB_ULEB128 108
#define R_LARCH_64_PCREL 109
#ifndef ELF_ARCH

45
arch/loongarch/include/asm/exception.h Normal file
View File

@ -0,0 +1,45 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __ASM_EXCEPTION_H
#define __ASM_EXCEPTION_H
#include <asm/ptrace.h>
#include <linux/kprobes.h>
void show_registers(struct pt_regs *regs);
asmlinkage void cache_parity_error(void);
asmlinkage void noinstr do_ade(struct pt_regs *regs);
asmlinkage void noinstr do_ale(struct pt_regs *regs);
asmlinkage void noinstr do_bce(struct pt_regs *regs);
asmlinkage void noinstr do_bp(struct pt_regs *regs);
asmlinkage void noinstr do_ri(struct pt_regs *regs);
asmlinkage void noinstr do_fpu(struct pt_regs *regs);
asmlinkage void noinstr do_fpe(struct pt_regs *regs, unsigned long fcsr);
asmlinkage void noinstr do_lsx(struct pt_regs *regs);
asmlinkage void noinstr do_lasx(struct pt_regs *regs);
asmlinkage void noinstr do_lbt(struct pt_regs *regs);
asmlinkage void noinstr do_watch(struct pt_regs *regs);
asmlinkage void noinstr do_syscall(struct pt_regs *regs);
asmlinkage void noinstr do_reserved(struct pt_regs *regs);
asmlinkage void noinstr do_vint(struct pt_regs *regs, unsigned long sp);
asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
unsigned long write, unsigned long address);
asmlinkage void handle_ade(void);
asmlinkage void handle_ale(void);
asmlinkage void handle_bce(void);
asmlinkage void handle_sys(void);
asmlinkage void handle_bp(void);
asmlinkage void handle_ri(void);
asmlinkage void handle_fpu(void);
asmlinkage void handle_fpe(void);
asmlinkage void handle_lsx(void);
asmlinkage void handle_lasx(void);
asmlinkage void handle_lbt(void);
asmlinkage void handle_watch(void);
asmlinkage void handle_reserved(void);
asmlinkage void handle_vint(void);
asmlinkage void noinstr handle_loongarch_irq(struct pt_regs *regs);
#endif /* __ASM_EXCEPTION_H */

59
arch/loongarch/include/asm/kasan.h
View File

@ -10,8 +10,6 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#define __HAVE_ARCH_SHADOW_MAP
#define KASAN_SHADOW_SCALE_SHIFT 3
#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)
@ -62,61 +60,22 @@
extern bool kasan_early_stage;
extern unsigned char kasan_early_shadow_page[PAGE_SIZE];
#define kasan_mem_to_shadow kasan_mem_to_shadow
void *kasan_mem_to_shadow(const void *addr);
#define kasan_shadow_to_mem kasan_shadow_to_mem
const void *kasan_shadow_to_mem(const void *shadow_addr);
#define kasan_arch_is_ready kasan_arch_is_ready
static __always_inline bool kasan_arch_is_ready(void)
{
return !kasan_early_stage;
}
static inline void *kasan_mem_to_shadow(const void *addr)
#define addr_has_metadata addr_has_metadata
static __always_inline bool addr_has_metadata(const void *addr)
{
if (!kasan_arch_is_ready()) {
return (void *)(kasan_early_shadow_page);
} else {
unsigned long maddr = (unsigned long)addr;
unsigned long xrange = (maddr >> XRANGE_SHIFT) & 0xffff;
unsigned long offset = 0;
maddr &= XRANGE_SHADOW_MASK;
switch (xrange) {
case XKPRANGE_CC_SEG:
offset = XKPRANGE_CC_SHADOW_OFFSET;
break;
case XKPRANGE_UC_SEG:
offset = XKPRANGE_UC_SHADOW_OFFSET;
break;
case XKVRANGE_VC_SEG:
offset = XKVRANGE_VC_SHADOW_OFFSET;
break;
default:
WARN_ON(1);
return NULL;
}
return (void *)((maddr >> KASAN_SHADOW_SCALE_SHIFT) + offset);
}
}
static inline const void *kasan_shadow_to_mem(const void *shadow_addr)
{
unsigned long addr = (unsigned long)shadow_addr;
if (unlikely(addr > KASAN_SHADOW_END) ||
unlikely(addr < KASAN_SHADOW_START)) {
WARN_ON(1);
return NULL;
}
if (addr >= XKVRANGE_VC_SHADOW_OFFSET)
return (void *)(((addr - XKVRANGE_VC_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT) + XKVRANGE_VC_START);
else if (addr >= XKPRANGE_UC_SHADOW_OFFSET)
return (void *)(((addr - XKPRANGE_UC_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT) + XKPRANGE_UC_START);
else if (addr >= XKPRANGE_CC_SHADOW_OFFSET)
return (void *)(((addr - XKPRANGE_CC_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT) + XKPRANGE_CC_START);
else {
WARN_ON(1);
return NULL;
}
return (kasan_mem_to_shadow((void *)addr) != NULL);
}
void kasan_init(void);

1
arch/loongarch/include/asm/smp.h
View File

@ -70,6 +70,7 @@ struct secondary_data {
extern struct secondary_data cpuboot_data;
extern asmlinkage void smpboot_entry(void);
extern asmlinkage void start_secondary(void);
extern void calculate_cpu_foreign_map(void);

4
arch/loongarch/kernel/Makefile
View File

@ -19,6 +19,10 @@ obj-$(CONFIG_CPU_HAS_LBT) += lbt.o
obj-$(CONFIG_ARCH_STRICT_ALIGN) += unaligned.o
CFLAGS_module.o += $(call cc-option,-Wno-override-init,)
CFLAGS_syscall.o += $(call cc-option,-Wno-override-init,)
CFLAGS_perf_event.o += $(call cc-option,-Wno-override-init,)
ifdef CONFIG_FUNCTION_TRACER
ifndef CONFIG_DYNAMIC_FTRACE
obj-y += mcount.o ftrace.o

1
arch/loongarch/kernel/acpi.c
View File

@ -281,7 +281,6 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
pr_info("SRAT: PXM %u -> CPU 0x%02x -> Node %u\n", pxm, pa->apic_id, node);
}
void __init acpi_numa_arch_fixup(void) {}
#endif
void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)

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

@ -50,7 +50,6 @@ void __init memblock_init(void)
}
memblock_set_current_limit(PFN_PHYS(max_low_pfn));
memblock_set_node(0, PHYS_ADDR_MAX, &memblock.memory, 0);
/* Reserve the first 2MB */
memblock_reserve(PHYS_OFFSET, 0x200000);
@ -58,4 +57,7 @@ void __init memblock_init(void)
/* Reserve the kernel text/data/bss */
memblock_reserve(__pa_symbol(&_text),
__pa_symbol(&_end) - __pa_symbol(&_text));
memblock_set_node(0, PHYS_ADDR_MAX, &memblock.memory, 0);
memblock_set_node(0, PHYS_ADDR_MAX, &memblock.reserved, 0);
}

1
arch/loongarch/kernel/module-sections.c
View File

@ -6,6 +6,7 @@
#include <linux/elf.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleloader.h>
#include <linux/ftrace.h>
Elf_Addr module_emit_got_entry(struct module *mod, Elf_Shdr *sechdrs, Elf_Addr val)

22
arch/loongarch/kernel/module.c
View File

@ -367,6 +367,24 @@ static int apply_r_larch_got_pc(struct module *mod,
return apply_r_larch_pcala(mod, location, got, rela_stack, rela_stack_top, type);
}
static int apply_r_larch_32_pcrel(struct module *mod, u32 *location, Elf_Addr v,
s64 *rela_stack, size_t *rela_stack_top, unsigned int type)
{
ptrdiff_t offset = (void *)v - (void *)location;
*(u32 *)location = offset;
return 0;
}
static int apply_r_larch_64_pcrel(struct module *mod, u32 *location, Elf_Addr v,
s64 *rela_stack, size_t *rela_stack_top, unsigned int type)
{
ptrdiff_t offset = (void *)v - (void *)location;
*(u64 *)location = offset;
return 0;
}
/*
* reloc_handlers_rela() - Apply a particular relocation to a module
* @mod: the module to apply the reloc to
@ -382,7 +400,7 @@ typedef int (*reloc_rela_handler)(struct module *mod, u32 *location, Elf_Addr v,
/* The handlers for known reloc types */
static reloc_rela_handler reloc_rela_handlers[] = {
[R_LARCH_NONE ... R_LARCH_RELAX] = apply_r_larch_error,
[R_LARCH_NONE ... R_LARCH_64_PCREL] = apply_r_larch_error,
[R_LARCH_NONE] = apply_r_larch_none,
[R_LARCH_32] = apply_r_larch_32,
@ -396,6 +414,8 @@ static reloc_rela_handler reloc_rela_handlers[] = {
[R_LARCH_SOP_POP_32_S_10_5 ... R_LARCH_SOP_POP_32_U] = apply_r_larch_sop_imm_field,
[R_LARCH_ADD32 ... R_LARCH_SUB64] = apply_r_larch_add_sub,
[R_LARCH_PCALA_HI20...R_LARCH_PCALA64_HI12] = apply_r_larch_pcala,
[R_LARCH_32_PCREL] = apply_r_larch_32_pcrel,
[R_LARCH_64_PCREL] = apply_r_larch_64_pcrel,
};
int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,

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

@ -436,7 +436,7 @@ void __init paging_init(void)
void __init mem_init(void)
{
high_memory = (void *) __va(get_num_physpages() << PAGE_SHIFT);
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
memblock_free_all();
}

1
arch/loongarch/kernel/process.c
View File

@ -37,6 +37,7 @@
#include <asm/bootinfo.h>
#include <asm/cpu.h>
#include <asm/elf.h>
#include <asm/exec.h>
#include <asm/fpu.h>
#include <asm/lbt.h>
#include <asm/io.h>

1
arch/loongarch/kernel/relocate_kernel.S
View File

@ -72,7 +72,6 @@ copy_word:
LONG_ADDI s5, s5, -1
beqz s5, process_entry
b copy_word
b process_entry
done:
ibar 0

7
arch/loongarch/kernel/signal.c
View File

@ -13,6 +13,7 @@
#include <linux/audit.h>
#include <linux/cache.h>
#include <linux/context_tracking.h>
#include <linux/entry-common.h>
#include <linux/irqflags.h>
#include <linux/sched.h>
#include <linux/mm.h>
@ -891,8 +892,8 @@ static unsigned long setup_extcontext(struct extctx_layout *extctx, unsigned lon
return new_sp;
}
void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
struct extctx_layout *extctx)
static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
struct extctx_layout *extctx)
{
unsigned long sp;
@ -922,7 +923,7 @@ void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
* Atomically swap in the new signal mask, and wait for a signal.
*/
asmlinkage long sys_rt_sigreturn(void)
SYSCALL_DEFINE0(rt_sigreturn)
{
int sig;
sigset_t set;

3
arch/loongarch/kernel/smp.c
View File

@ -13,6 +13,7 @@
#include <linux/cpumask.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/profile.h>
#include <linux/seq_file.h>
#include <linux/smp.h>
#include <linux/threads.h>
@ -556,10 +557,12 @@ void smp_send_stop(void)
smp_call_function(stop_this_cpu, NULL, 0);
}
#ifdef CONFIG_PROFILING
int setup_profiling_timer(unsigned int multiplier)
{
return 0;
}
#endif
static void flush_tlb_all_ipi(void *info)
{

1
arch/loongarch/kernel/syscall.c
View File

@ -13,6 +13,7 @@
#include <linux/unistd.h>
#include <asm/asm.h>
#include <asm/exception.h>
#include <asm/signal.h>
#include <asm/switch_to.h>
#include <asm-generic/syscalls.h>

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

@ -29,7 +29,7 @@ static void constant_event_handler(struct clock_event_device *dev)
{
}
irqreturn_t constant_timer_interrupt(int irq, void *data)
static irqreturn_t constant_timer_interrupt(int irq, void *data)
{
int cpu = smp_processor_id();
struct clock_event_device *cd;

3
arch/loongarch/kernel/topology.c
View File

@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/acpi.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/init.h>
@ -7,6 +8,8 @@
#include <linux/percpu.h>
#include <asm/bootinfo.h>
#include <acpi/processor.h>
static DEFINE_PER_CPU(struct cpu, cpu_devices);
#ifdef CONFIG_HOTPLUG_CPU

25
arch/loongarch/kernel/traps.c
View File

@ -25,7 +25,6 @@
#include <linux/ptrace.h>
#include <linux/kgdb.h>
#include <linux/kdebug.h>
#include <linux/kprobes.h>
#include <linux/notifier.h>
#include <linux/irq.h>
#include <linux/perf_event.h>
@ -35,6 +34,7 @@
#include <asm/branch.h>
#include <asm/break.h>
#include <asm/cpu.h>
#include <asm/exception.h>
#include <asm/fpu.h>
#include <asm/lbt.h>
#include <asm/inst.h>
@ -53,21 +53,6 @@
#include "access-helper.h"
extern asmlinkage void handle_ade(void);
extern asmlinkage void handle_ale(void);
extern asmlinkage void handle_bce(void);
extern asmlinkage void handle_sys(void);
extern asmlinkage void handle_bp(void);
extern asmlinkage void handle_ri(void);
extern asmlinkage void handle_fpu(void);
extern asmlinkage void handle_fpe(void);
extern asmlinkage void handle_lbt(void);
extern asmlinkage void handle_lsx(void);
extern asmlinkage void handle_lasx(void);
extern asmlinkage void handle_reserved(void);
extern asmlinkage void handle_watch(void);
extern asmlinkage void handle_vint(void);
static void show_backtrace(struct task_struct *task, const struct pt_regs *regs,
const char *loglvl, bool user)
{
@ -439,8 +424,8 @@ static inline void setup_vint_size(unsigned int size)
* happen together with Overflow or Underflow, and `ptrace' can set
* any bits.
*/
void force_fcsr_sig(unsigned long fcsr, void __user *fault_addr,
struct task_struct *tsk)
static void force_fcsr_sig(unsigned long fcsr,
void __user *fault_addr, struct task_struct *tsk)
{
int si_code = FPE_FLTUNK;
@ -458,7 +443,7 @@ void force_fcsr_sig(unsigned long fcsr, void __user *fault_addr,
force_sig_fault(SIGFPE, si_code, fault_addr);
}
int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcsr)
static int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcsr)
{
int si_code;
@ -824,7 +809,7 @@ out:
asmlinkage void noinstr do_ri(struct pt_regs *regs)
{
int status = SIGILL;
unsigned int opcode = 0;
unsigned int __maybe_unused opcode;
unsigned int __user *era = (unsigned int __user *)exception_era(regs);
irqentry_state_t state = irqentry_enter(regs);

55
arch/loongarch/kernel/vmlinux.lds.S
View File

@ -53,33 +53,6 @@ SECTIONS
. = ALIGN(PECOFF_SEGMENT_ALIGN);
_etext = .;
/*
* struct alt_inst entries. From the header (alternative.h):
* "Alternative instructions for different CPU types or capabilities"
* Think locking instructions on spinlocks.
*/
. = ALIGN(4);
.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
__alt_instructions = .;
*(.altinstructions)
__alt_instructions_end = .;
}
#ifdef CONFIG_RELOCATABLE
. = ALIGN(8);
.la_abs : AT(ADDR(.la_abs) - LOAD_OFFSET) {
__la_abs_begin = .;
*(.la_abs)
__la_abs_end = .;
}
#endif
.got : ALIGN(16) { *(.got) }
.plt : ALIGN(16) { *(.plt) }
.got.plt : ALIGN(16) { *(.got.plt) }
.data.rel : { *(.data.rel*) }
. = ALIGN(PECOFF_SEGMENT_ALIGN);
__init_begin = .;
__inittext_begin = .;
@ -94,6 +67,18 @@ SECTIONS
__initdata_begin = .;
/*
* struct alt_inst entries. From the header (alternative.h):
* "Alternative instructions for different CPU types or capabilities"
* Think locking instructions on spinlocks.
*/
. = ALIGN(4);
.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
__alt_instructions = .;
*(.altinstructions)
__alt_instructions_end = .;
}
INIT_DATA_SECTION(16)
.exit.data : {
EXIT_DATA
@ -113,6 +98,11 @@ SECTIONS
_sdata = .;
RO_DATA(4096)
.got : ALIGN(16) { *(.got) }
.plt : ALIGN(16) { *(.plt) }
.got.plt : ALIGN(16) { *(.got.plt) }
RW_DATA(1 << CONFIG_L1_CACHE_SHIFT, PAGE_SIZE, THREAD_SIZE)
.rela.dyn : ALIGN(8) {
@ -121,6 +111,17 @@ SECTIONS
__rela_dyn_end = .;
}
.data.rel : { *(.data.rel*) }
#ifdef CONFIG_RELOCATABLE
. = ALIGN(8);
.la_abs : AT(ADDR(.la_abs) - LOAD_OFFSET) {
__la_abs_begin = .;
*(.la_abs)
__la_abs_end = .;
}
#endif
.sdata : {
*(.sdata)
}

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

@ -20,12 +20,12 @@
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kdebug.h>
#include <linux/kprobes.h>
#include <linux/perf_event.h>
#include <linux/uaccess.h>
#include <linux/kfence.h>
#include <asm/branch.h>
#include <asm/exception.h>
#include <asm/mmu_context.h>
#include <asm/ptrace.h>

12
arch/loongarch/mm/hugetlbpage.c
View File

@ -50,18 +50,6 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr,
return (pte_t *) pmd;
}
/*
* This function checks for proper alignment of input addr and len parameters.
*/
int is_aligned_hugepage_range(unsigned long addr, unsigned long len)
{
if (len & ~HPAGE_MASK)
return -EINVAL;
if (addr & ~HPAGE_MASK)
return -EINVAL;
return 0;
}
int pmd_huge(pmd_t pmd)
{
return (pmd_val(pmd) & _PAGE_HUGE) != 0;

1
arch/loongarch/mm/ioremap.c
View File

@ -4,6 +4,7 @@
*/
#include <asm/io.h>
#include <asm-generic/early_ioremap.h>
void __init __iomem *early_ioremap(u64 phys_addr, unsigned long size)
{

51
arch/loongarch/mm/kasan_init.c
View File

@ -35,6 +35,57 @@ static pgd_t kasan_pg_dir[PTRS_PER_PGD] __initdata __aligned(PAGE_SIZE);
bool kasan_early_stage = true;
void *kasan_mem_to_shadow(const void *addr)
{
if (!kasan_arch_is_ready()) {
return (void *)(kasan_early_shadow_page);
} else {
unsigned long maddr = (unsigned long)addr;
unsigned long xrange = (maddr >> XRANGE_SHIFT) & 0xffff;
unsigned long offset = 0;
maddr &= XRANGE_SHADOW_MASK;
switch (xrange) {
case XKPRANGE_CC_SEG:
offset = XKPRANGE_CC_SHADOW_OFFSET;
break;
case XKPRANGE_UC_SEG:
offset = XKPRANGE_UC_SHADOW_OFFSET;
break;
case XKVRANGE_VC_SEG:
offset = XKVRANGE_VC_SHADOW_OFFSET;
break;
default:
WARN_ON(1);
return NULL;
}
return (void *)((maddr >> KASAN_SHADOW_SCALE_SHIFT) + offset);
}
}
const void *kasan_shadow_to_mem(const void *shadow_addr)
{
unsigned long addr = (unsigned long)shadow_addr;
if (unlikely(addr > KASAN_SHADOW_END) ||
unlikely(addr < KASAN_SHADOW_START)) {
WARN_ON(1);
return NULL;
}
if (addr >= XKVRANGE_VC_SHADOW_OFFSET)
return (void *)(((addr - XKVRANGE_VC_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT) + XKVRANGE_VC_START);
else if (addr >= XKPRANGE_UC_SHADOW_OFFSET)
return (void *)(((addr - XKPRANGE_UC_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT) + XKPRANGE_UC_START);
else if (addr >= XKPRANGE_CC_SHADOW_OFFSET)
return (void *)(((addr - XKPRANGE_CC_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT) + XKPRANGE_CC_START);
else {
WARN_ON(1);
return NULL;
}
}
/*
* Alloc memory for shadow memory page table.
*/

2
arch/loongarch/mm/tlb.c
View File

@ -261,7 +261,7 @@ unsigned long pcpu_handlers[NR_CPUS];
#endif
extern long exception_handlers[VECSIZE * 128 / sizeof(long)];
void setup_tlb_handler(int cpu)
static void setup_tlb_handler(int cpu)
{
setup_ptwalker();
local_flush_tlb_all();

4
arch/mips/alchemy/devboards/db1000.c
View File

@ -164,6 +164,7 @@ static struct platform_device db1x00_audio_dev = {
/******************************************************************************/
#ifdef CONFIG_MMC_AU1X
static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
{
mmc_detect_change(ptr, msecs_to_jiffies(500));
@ -369,6 +370,7 @@ static struct platform_device db1100_mmc1_dev = {
.num_resources = ARRAY_SIZE(au1100_mmc1_res),
.resource = au1100_mmc1_res,
};
#endif /* CONFIG_MMC_AU1X */
/******************************************************************************/
@ -440,8 +442,10 @@ static struct platform_device *db1x00_devs[] = {
static struct platform_device *db1100_devs[] = {
&au1100_lcd_device,
#ifdef CONFIG_MMC_AU1X
&db1100_mmc0_dev,
&db1100_mmc1_dev,
#endif
};
int __init db1000_dev_setup(void)

6
arch/mips/alchemy/devboards/db1200.c
View File

@ -326,6 +326,7 @@ static struct platform_device db1200_ide_dev = {
/**********************************************************************/
#ifdef CONFIG_MMC_AU1X
/* SD carddetects: they're supposed to be edge-triggered, but ack
* doesn't seem to work (CPLD Rev 2). Instead, the screaming one
* is disabled and its counterpart enabled. The 200ms timeout is
@ -584,6 +585,7 @@ static struct platform_device pb1200_mmc1_dev = {
.num_resources = ARRAY_SIZE(au1200_mmc1_res),
.resource = au1200_mmc1_res,
};
#endif /* CONFIG_MMC_AU1X */
/**********************************************************************/
@ -751,7 +753,9 @@ static struct platform_device db1200_audiodma_dev = {
static struct platform_device *db1200_devs[] __initdata = {
NULL, /* PSC0, selected by S6.8 */
&db1200_ide_dev,
#ifdef CONFIG_MMC_AU1X
&db1200_mmc0_dev,
#endif
&au1200_lcd_dev,
&db1200_eth_dev,
&db1200_nand_dev,
@ -762,7 +766,9 @@ static struct platform_device *db1200_devs[] __initdata = {
};
static struct platform_device *pb1200_devs[] __initdata = {
#ifdef CONFIG_MMC_AU1X
&pb1200_mmc1_dev,
#endif
};
/* Some peripheral base addresses differ on the PB1200 */

4
arch/mips/alchemy/devboards/db1300.c
View File

@ -450,6 +450,7 @@ static struct platform_device db1300_ide_dev = {
/**********************************************************************/
#ifdef CONFIG_MMC_AU1X
static irqreturn_t db1300_mmc_cd(int irq, void *ptr)
{
disable_irq_nosync(irq);
@ -632,6 +633,7 @@ static struct platform_device db1300_sd0_dev = {
.resource = au1300_sd0_res,
.num_resources = ARRAY_SIZE(au1300_sd0_res),
};
#endif /* CONFIG_MMC_AU1X */
/**********************************************************************/
@ -767,8 +769,10 @@ static struct platform_device *db1300_dev[] __initdata = {
&db1300_5waysw_dev,
&db1300_nand_dev,
&db1300_ide_dev,
#ifdef CONFIG_MMC_AU1X
&db1300_sd0_dev,
&db1300_sd1_dev,
#endif
&db1300_lcd_dev,
&db1300_ac97_dev,
&db1300_i2s_dev,

1
arch/parisc/include/asm/cache.h
View File

@ -37,6 +37,7 @@ extern int split_tlb;
extern int dcache_stride;
extern int icache_stride;
extern struct pdc_cache_info cache_info;
extern struct pdc_btlb_info btlb_info;
void parisc_setup_cache_timing(void);
#define pdtlb(sr, addr) asm volatile("pdtlb 0(%%sr%0,%1)" \

2
arch/parisc/include/asm/hugetlb.h
View File

@ -6,7 +6,7 @@
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
pte_t *ptep, pte_t pte, unsigned long sz);
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,

8
arch/parisc/include/asm/mckinley.h
View File

@ -1,8 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ASM_PARISC_MCKINLEY_H
#define ASM_PARISC_MCKINLEY_H
/* declared in arch/parisc/kernel/setup.c */
extern struct proc_dir_entry * proc_mckinley_root;
#endif /*ASM_PARISC_MCKINLEY_H*/

5
arch/parisc/include/asm/pdc.h
View File

@ -44,10 +44,11 @@ int pdc_model_capabilities(unsigned long *capabilities);
int pdc_model_platform_info(char *orig_prod_num, char *current_prod_num, char *serial_no);
int pdc_cache_info(struct pdc_cache_info *cache);
int pdc_spaceid_bits(unsigned long *space_bits);
#ifndef CONFIG_PA20
int pdc_btlb_info(struct pdc_btlb_info *btlb);
int pdc_btlb_insert(unsigned long long vpage, unsigned long physpage, unsigned long len,
unsigned long entry_info, unsigned long slot);
int pdc_btlb_purge_all(void);
int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path);
#endif /* !CONFIG_PA20 */
int pdc_pim_toc11(struct pdc_toc_pim_11 *ret);
int pdc_pim_toc20(struct pdc_toc_pim_20 *ret);
int pdc_lan_station_id(char *lan_addr, unsigned long net_hpa);

1
arch/parisc/include/asm/processor.h
View File

@ -310,6 +310,7 @@ extern void do_syscall_trace_exit(struct pt_regs *);
struct seq_file;
extern void early_trap_init(void);
extern void collect_boot_cpu_data(void);
extern void btlb_init_per_cpu(void);
extern int show_cpuinfo (struct seq_file *m, void *v);
/* driver code in driver/parisc */

7
arch/parisc/include/asm/ropes.h
View File

@ -29,7 +29,7 @@
struct ioc {
void __iomem *ioc_hpa; /* I/O MMU base address */
char *res_map; /* resource map, bit == pdir entry */
u64 *pdir_base; /* physical base address */
__le64 *pdir_base; /* physical base address */
unsigned long ibase; /* pdir IOV Space base - shared w/lba_pci */
unsigned long imask; /* pdir IOV Space mask - shared w/lba_pci */
#ifdef ZX1_SUPPORT
@ -86,6 +86,9 @@ struct sba_device {
struct ioc ioc[MAX_IOC];
};
/* list of SBA's in system, see drivers/parisc/sba_iommu.c */
extern struct sba_device *sba_list;
#define ASTRO_RUNWAY_PORT 0x582
#define IKE_MERCED_PORT 0x803
#define REO_MERCED_PORT 0x804
@ -110,7 +113,7 @@ static inline int IS_PLUTO(struct parisc_device *d) {
#define SBA_PDIR_VALID_BIT 0x8000000000000000ULL
#define SBA_AGPGART_COOKIE 0x0000badbadc0ffeeULL
#define SBA_AGPGART_COOKIE (__force __le64) 0x0000badbadc0ffeeULL
#define SBA_FUNC_ID 0x0000 /* function id */
#define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */

15
arch/parisc/include/asm/shmparam.h
View File

@ -2,6 +2,21 @@
#ifndef _ASMPARISC_SHMPARAM_H
#define _ASMPARISC_SHMPARAM_H
/*
* PA-RISC uses virtually indexed & physically tagged (VIPT) caches
* which has strict requirements when two pages to the same physical
* address are accessed through different mappings. Read the section
* "Address Aliasing" in the arch docs for more detail:
* PA-RISC 1.1 (page 3-6):
* https://parisc.wiki.kernel.org/images-parisc/6/68/Pa11_acd.pdf
* PA-RISC 2.0 (page F-5):
* https://parisc.wiki.kernel.org/images-parisc/7/73/Parisc2.0.pdf
*
* For Linux we allow kernel and userspace to map pages on page size
* granularity (SHMLBA) but have to ensure that, if two pages are
* mapped to the same physical address, the virtual and physical
* addresses modulo SHM_COLOUR are identical.
*/
#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
#define SHM_COLOUR 0x00400000 /* shared mappings colouring */

2
arch/parisc/kernel/asm-offsets.c
View File

@ -275,6 +275,8 @@ int main(void)
* and kernel data on physical huge pages */
#ifdef CONFIG_HUGETLB_PAGE
DEFINE(HUGEPAGE_SIZE, 1UL << REAL_HPAGE_SHIFT);
#elif !defined(CONFIG_64BIT)
DEFINE(HUGEPAGE_SIZE, 4*1024*1024);
#else
DEFINE(HUGEPAGE_SIZE, PAGE_SIZE);
#endif

8
arch/parisc/kernel/cache.c
View File

@ -58,7 +58,7 @@ int pa_serialize_tlb_flushes __ro_after_init;
struct pdc_cache_info cache_info __ro_after_init;
#ifndef CONFIG_PA20
static struct pdc_btlb_info btlb_info __ro_after_init;
struct pdc_btlb_info btlb_info __ro_after_init;
#endif
DEFINE_STATIC_KEY_TRUE(parisc_has_cache);
@ -264,12 +264,6 @@ parisc_cache_init(void)
icache_stride = CAFL_STRIDE(cache_info.ic_conf);
#undef CAFL_STRIDE
#ifndef CONFIG_PA20
if (pdc_btlb_info(&btlb_info) < 0) {
memset(&btlb_info, 0, sizeof btlb_info);
}
#endif
if ((boot_cpu_data.pdc.capabilities & PDC_MODEL_NVA_MASK) ==
PDC_MODEL_NVA_UNSUPPORTED) {
printk(KERN_WARNING "parisc_cache_init: Only equivalent aliasing supported!\n");

2
arch/parisc/kernel/drivers.c
View File

@ -925,9 +925,9 @@ static __init void qemu_header(void)
pr_info("#define PARISC_MODEL \"%s\"\n\n",
boot_cpu_data.pdc.sys_model_name);
#define p ((unsigned long *)&boot_cpu_data.pdc.model)
pr_info("#define PARISC_PDC_MODEL 0x%lx, 0x%lx, 0x%lx, "
"0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx\n\n",
#define p ((unsigned long *)&boot_cpu_data.pdc.model)
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
#undef p

56
arch/parisc/kernel/firmware.c
View File

@ -687,7 +687,6 @@ int pdc_spaceid_bits(unsigned long *space_bits)
return retval;
}
#ifndef CONFIG_PA20
/**
* pdc_btlb_info - Return block TLB information.
* @btlb: The return buffer.
@ -696,18 +695,51 @@ int pdc_spaceid_bits(unsigned long *space_bits)
*/
int pdc_btlb_info(struct pdc_btlb_info *btlb)
{
int retval;
int retval;
unsigned long flags;
spin_lock_irqsave(&pdc_lock, flags);
retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0);
memcpy(btlb, pdc_result, sizeof(*btlb));
spin_unlock_irqrestore(&pdc_lock, flags);
if (IS_ENABLED(CONFIG_PA20))
return PDC_BAD_PROC;
if(retval < 0) {
btlb->max_size = 0;
}
return retval;
spin_lock_irqsave(&pdc_lock, flags);
retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0);
memcpy(btlb, pdc_result, sizeof(*btlb));
spin_unlock_irqrestore(&pdc_lock, flags);
if(retval < 0) {
btlb->max_size = 0;
}
return retval;
}
int pdc_btlb_insert(unsigned long long vpage, unsigned long physpage, unsigned long len,
unsigned long entry_info, unsigned long slot)
{
int retval;
unsigned long flags;
if (IS_ENABLED(CONFIG_PA20))
return PDC_BAD_PROC;
spin_lock_irqsave(&pdc_lock, flags);
retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INSERT, (unsigned long) (vpage >> 32),
(unsigned long) vpage, physpage, len, entry_info, slot);
spin_unlock_irqrestore(&pdc_lock, flags);
return retval;
}
int pdc_btlb_purge_all(void)
{
int retval;
unsigned long flags;
if (IS_ENABLED(CONFIG_PA20))
return PDC_BAD_PROC;
spin_lock_irqsave(&pdc_lock, flags);
retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_PURGE_ALL);
spin_unlock_irqrestore(&pdc_lock, flags);
return retval;
}
/**
@ -728,6 +760,9 @@ int pdc_mem_map_hpa(struct pdc_memory_map *address,
int retval;
unsigned long flags;
if (IS_ENABLED(CONFIG_PA20))
return PDC_BAD_PROC;
spin_lock_irqsave(&pdc_lock, flags);
memcpy(pdc_result2, mod_path, sizeof(*mod_path));
retval = mem_pdc_call(PDC_MEM_MAP, PDC_MEM_MAP_HPA, __pa(pdc_result),
@ -737,7 +772,6 @@ int pdc_mem_map_hpa(struct pdc_memory_map *address,
return retval;
}
#endif /* !CONFIG_PA20 */
/**
* pdc_lan_station_id - Get the LAN address.

16
arch/parisc/kernel/head.S
View File

@ -180,10 +180,10 @@ $pgt_fill_loop:
std %dp,0x18(%r10)
#endif
#ifdef CONFIG_64BIT
/* Get PDCE_PROC for monarch CPU. */
#define MEM_PDC_LO 0x388
#define MEM_PDC_HI 0x35C
#ifdef CONFIG_64BIT
/* Get PDCE_PROC for monarch CPU. */
ldw MEM_PDC_LO(%r0),%r3
ldw MEM_PDC_HI(%r0),%r10
depd %r10, 31, 32, %r3 /* move to upper word */
@ -269,7 +269,17 @@ stext_pdc_ret:
tovirt_r1 %r6
mtctl %r6,%cr30 /* restore task thread info */
#endif
#ifndef CONFIG_64BIT
/* clear all BTLBs */
ldi PDC_BLOCK_TLB,%arg0
load32 PA(stext_pdc_btlb_ret), %rp
ldw MEM_PDC_LO(%r0),%r3
bv (%r3)
ldi PDC_BTLB_PURGE_ALL,%arg1
stext_pdc_btlb_ret:
#endif
/* PARANOID: clear user scratch/user space SR's */
mtsp %r0,%sr0
mtsp %r0,%sr1

2
arch/parisc/kernel/irq.c
View File

@ -365,7 +365,7 @@ union irq_stack_union {
volatile unsigned int lock[1];
};
DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
static DEFINE_PER_CPU(union irq_stack_union, irq_stack_union) = {
.slock = { 1,1,1,1 },
};
#endif

2
arch/parisc/kernel/processor.c
View File

@ -368,6 +368,8 @@ int init_per_cpu(int cpunum)
/* FUTURE: Enable Performance Monitor : ccr bit 0x20 */
init_percpu_prof(cpunum);
btlb_init_per_cpu();
return ret;
}

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

@ -154,6 +154,7 @@ SECTIONS
}
/* End of data section */
. = ALIGN(PAGE_SIZE);
_edata = .;
/* BSS */

2
arch/parisc/mm/hugetlbpage.c
View File

@ -140,7 +140,7 @@ static void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
}
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t entry)
pte_t *ptep, pte_t entry, unsigned long sz)
{
__set_huge_pte_at(mm, addr, ptep, entry);
}

72
arch/parisc/mm/init.c
View File

@ -32,6 +32,7 @@
#include <asm/sections.h>
#include <asm/msgbuf.h>
#include <asm/sparsemem.h>
#include <asm/asm-offsets.h>
extern int data_start;
extern void parisc_kernel_start(void); /* Kernel entry point in head.S */
@ -720,6 +721,77 @@ void __init paging_init(void)
parisc_bootmem_free();
}
static void alloc_btlb(unsigned long start, unsigned long end, int *slot,
unsigned long entry_info)
{
const int slot_max = btlb_info.fixed_range_info.num_comb;
int min_num_pages = btlb_info.min_size;
unsigned long size;
/* map at minimum 4 pages */
if (min_num_pages < 4)
min_num_pages = 4;
size = HUGEPAGE_SIZE;
while (start < end && *slot < slot_max && size >= PAGE_SIZE) {
/* starting address must have same alignment as size! */
/* if correctly aligned and fits in double size, increase */
if (((start & (2 * size - 1)) == 0) &&
(end - start) >= (2 * size)) {
size <<= 1;
continue;
}
/* if current size alignment is too big, try smaller size */
if ((start & (size - 1)) != 0) {
size >>= 1;
continue;
}
if ((end - start) >= size) {
if ((size >> PAGE_SHIFT) >= min_num_pages)
pdc_btlb_insert(start >> PAGE_SHIFT, __pa(start) >> PAGE_SHIFT,
size >> PAGE_SHIFT, entry_info, *slot);
(*slot)++;
start += size;
continue;
}
size /= 2;
continue;
}
}
void btlb_init_per_cpu(void)
{
unsigned long s, t, e;
int slot;
/* BTLBs are not available on 64-bit CPUs */
if (IS_ENABLED(CONFIG_PA20))
return;
else if (pdc_btlb_info(&btlb_info) < 0) {
memset(&btlb_info, 0, sizeof btlb_info);
}
/* insert BLTLBs for code and data segments */
s = (uintptr_t) dereference_function_descriptor(&_stext);
e = (uintptr_t) dereference_function_descriptor(&_etext);
t = (uintptr_t) dereference_function_descriptor(&_sdata);
BUG_ON(t != e);
/* code segments */
slot = 0;
alloc_btlb(s, e, &slot, 0x13800000);
/* sanity check */
t = (uintptr_t) dereference_function_descriptor(&_edata);
e = (uintptr_t) dereference_function_descriptor(&__bss_start);
BUG_ON(t != e);
/* data segments */
s = (uintptr_t) dereference_function_descriptor(&_sdata);
e = (uintptr_t) dereference_function_descriptor(&__bss_stop);
alloc_btlb(s, e, &slot, 0x11800000);
}
#ifdef CONFIG_PA20
/*

2
arch/powerpc/Kconfig
View File

@ -255,7 +255,7 @@ config PPC
select HAVE_KPROBES
select HAVE_KPROBES_ON_FTRACE
select HAVE_KRETPROBES
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if HAVE_OBJTOOL_MCOUNT
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if HAVE_OBJTOOL_MCOUNT && (!ARCH_USING_PATCHABLE_FUNCTION_ENTRY || (!CC_IS_GCC || GCC_VERSION >= 110100))
select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S)

3
arch/powerpc/include/asm/nohash/32/hugetlb-8xx.h
View File

@ -46,7 +46,8 @@ static inline int check_and_get_huge_psize(int shift)
}
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte);
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
pte_t pte, unsigned long sz);
#define __HAVE_ARCH_HUGE_PTE_CLEAR
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,

16
arch/powerpc/kernel/hw_breakpoint.c
View File

@ -230,13 +230,15 @@ void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs)
struct arch_hw_breakpoint *info;
int i;
preempt_disable();
for (i = 0; i < nr_wp_slots(); i++) {
struct perf_event *bp = __this_cpu_read(bp_per_reg[i]);
if (unlikely(bp && counter_arch_bp(bp)->perf_single_step))
goto reset;
}
return;
goto out;
reset:
regs_set_return_msr(regs, regs->msr & ~MSR_SE);
@ -245,6 +247,9 @@ reset:
__set_breakpoint(i, info);
info->perf_single_step = false;
}
out:
preempt_enable();
}
static bool is_larx_stcx_instr(int type)
@ -363,6 +368,11 @@ static void handle_p10dd1_spurious_exception(struct perf_event **bp,
}
}
/*
* Handle a DABR or DAWR exception.
*
* Called in atomic context.
*/
int hw_breakpoint_handler(struct die_args *args)
{
bool err = false;
@ -490,6 +500,8 @@ NOKPROBE_SYMBOL(hw_breakpoint_handler);
/*
* Handle single-step exceptions following a DABR hit.
*
* Called in atomic context.
*/
static int single_step_dabr_instruction(struct die_args *args)
{
@ -541,6 +553,8 @@ NOKPROBE_SYMBOL(single_step_dabr_instruction);
/*
* Handle debug exception notifications.
*
* Called in atomic context.
*/
int hw_breakpoint_exceptions_notify(
struct notifier_block *unused, unsigned long val, void *data)

7
arch/powerpc/kernel/hw_breakpoint_constraints.c
View File

@ -131,8 +131,13 @@ void wp_get_instr_detail(struct pt_regs *regs, ppc_inst_t *instr,
int *type, int *size, unsigned long *ea)
{
struct instruction_op op;
int err;
if (__get_user_instr(*instr, (void __user *)regs->nip))
pagefault_disable();
err = __get_user_instr(*instr, (void __user *)regs->nip);
pagefault_enable();
if (err)
return;
analyse_instr(&op, regs, *instr);

27
arch/powerpc/kernel/stacktrace.c
View File

@ -73,29 +73,12 @@ int __no_sanitize_address arch_stack_walk_reliable(stack_trace_consume_fn consum
bool firstframe;
stack_end = stack_page + THREAD_SIZE;
if (!is_idle_task(task)) {
/*
* For user tasks, this is the SP value loaded on
* kernel entry, see "PACAKSAVE(r13)" in _switch() and
* system_call_common().
*
* Likewise for non-swapper kernel threads,
* this also happens to be the top of the stack
* as setup by copy_thread().
*
* Note that stack backlinks are not properly setup by
* copy_thread() and thus, a forked task() will have
* an unreliable stack trace until it's been
* _switch()'ed to for the first time.
*/
stack_end -= STACK_USER_INT_FRAME_SIZE;
} else {
/*
* idle tasks have a custom stack layout,
* c.f. cpu_idle_thread_init().
*/
// See copy_thread() for details.
if (task->flags & PF_KTHREAD)
stack_end -= STACK_FRAME_MIN_SIZE;
}
else
stack_end -= STACK_USER_INT_FRAME_SIZE;
if (task == current)
sp = current_stack_frame();

56
arch/powerpc/kernel/traps.c
View File

@ -1512,23 +1512,11 @@ static void do_program_check(struct pt_regs *regs)
return;
}
if (cpu_has_feature(CPU_FTR_DEXCR_NPHIE) && user_mode(regs)) {
ppc_inst_t insn;
if (get_user_instr(insn, (void __user *)regs->nip)) {
_exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
return;
}
if (ppc_inst_primary_opcode(insn) == 31 &&
get_xop(ppc_inst_val(insn)) == OP_31_XOP_HASHCHK) {
_exception(SIGILL, regs, ILL_ILLOPN, regs->nip);
return;
}
/* User mode considers other cases after enabling IRQs */
if (!user_mode(regs)) {
_exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
return;
}
_exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
return;
}
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
if (reason & REASON_TM) {
@ -1561,16 +1549,44 @@ static void do_program_check(struct pt_regs *regs)
/*
* If we took the program check in the kernel skip down to sending a
* SIGILL. The subsequent cases all relate to emulating instructions
* which we should only do for userspace. We also do not want to enable
* interrupts for kernel faults because that might lead to further
* faults, and loose the context of the original exception.
* SIGILL. The subsequent cases all relate to user space, such as
* emulating instructions which we should only do for user space. We
* also do not want to enable interrupts for kernel faults because that
* might lead to further faults, and loose the context of the original
* exception.
*/
if (!user_mode(regs))
goto sigill;
interrupt_cond_local_irq_enable(regs);
/*
* (reason & REASON_TRAP) is mostly handled before enabling IRQs,
* except get_user_instr() can sleep so we cannot reliably inspect the
* current instruction in that context. Now that we know we are
* handling a user space trap and can sleep, we can check if the trap
* was a hashchk failure.
*/
if (reason & REASON_TRAP) {
if (cpu_has_feature(CPU_FTR_DEXCR_NPHIE)) {
ppc_inst_t insn;
if (get_user_instr(insn, (void __user *)regs->nip)) {
_exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
return;
}
if (ppc_inst_primary_opcode(insn) == 31 &&
get_xop(ppc_inst_val(insn)) == OP_31_XOP_HASHCHK) {
_exception(SIGILL, regs, ILL_ILLOPN, regs->nip);
return;
}
}
_exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
return;
}
/* (reason & REASON_ILLEGAL) would be the obvious thing here,
* but there seems to be a hardware bug on the 405GP (RevD)
* that means ESR is sometimes set incorrectly - either to

5
arch/powerpc/mm/book3s64/hugetlbpage.c
View File

@ -143,11 +143,14 @@ pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma,
void huge_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep, pte_t old_pte, pte_t pte)
{
unsigned long psize;
if (radix_enabled())
return radix__huge_ptep_modify_prot_commit(vma, addr, ptep,
old_pte, pte);
set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
psize = huge_page_size(hstate_vma(vma));
set_huge_pte_at(vma->vm_mm, addr, ptep, pte, psize);
}
void __init hugetlbpage_init_defaultsize(void)

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