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Signed-off-by: Marc Zyngier <maz@kernel.org>
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Signed-off-by: Marc Zyngier <maz@kernel.org>
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Signed-off-by: Marc Zyngier <maz@kernel.org>
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Signed-off-by: Marc Zyngier <maz@kernel.org>
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Hygon Family 18h(Dhyana) support RAPL in bit 14 of CPUID 0x80000007 EDX,
and has MSRs RAPL_PWR_UNIT/CORE_ENERGY_STAT/PKG_ENERGY_STAT. So add Hygon
Dhyana Family 18h support for RAPL.
The output is available via the energy-pkg pseudo event:
$ perf stat -a -I 1000 --per-socket -e power/energy-pkg/
[ mingo: Tidied up the initializers. ]
Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200720082205.1307-1-puwen@hygon.cn
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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MStar v7 SoCs support reset by writing a magic value to a register
in the "pmsleep" area.
This adds a node for using the syscon reboot driver to trigger a reset.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This patch adds a node for the pmsleep area so that other
drivers can access registers contained within it.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Adds the ARM PMU to the base MStar v7 dtsi.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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infinity3 has 128KB of SRAM at the IMI region.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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mercury5 family chips have 128KB of SRAM in the IMI region.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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infinity has 88KB of SRAM at the IMI region.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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All MStar v7 SoCs have an internal SRAM region that is between 64KB
(infinity2m) and 128KB(infinity3, mercury5).
The region is always at the same base address and is used for the
second stage loader (MStar IPL or u-boot SPL) and will be used for
the DDR self-refresh entry code within the kernel eventually.
This patch adds a 128KB region to the SoC and the minimum 64KB SRAM
region to the base dtsi. Families with more SRAM will override the
size in their family level dtsi.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11 workaround addresses an issue
which was fixed before the oldest supported binutils (2.23 at this time)
were released. So we can remove it now.
Acked-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Now that KVM support has been removed from the 32-bit ARM port,
drop the export kimage_voffset symbol, which no longer has any
users.
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The HARDEN_EL2_VECTORS config maps vectors at a fixed location on cores which
are susceptible to Spector variant 3a (A57, A72) to prevent defeating hyp
layout randomization by leaking the value of VBAR_EL2.
Since this feature is only applicable when EL2 layout randomization is enabled,
unify both behind the same RANDOMIZE_BASE Kconfig. Majority of code remains
conditional on a capability selected for the affected cores.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200721094445.82184-3-dbrazdil@google.com
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If there are spare bits in non-VHE hyp VA, KVM unconditionally replaces them
with a random tag chosen at init. Disable this if the kernel is built without
RANDOMIZE_BASE to align with kernel behavior.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200721094445.82184-2-dbrazdil@google.com
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Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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Drop the repeated word "the".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
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The /proc/meminfo file reports physically broken memory pages in the
HardwareCorrupted field. When the parisc kernel boots report physically
bad pages which were recorded in the page deallocation table (PDT) as
HardwareCorrupted too.
Signed-off-by: Helge Deller <deller@gmx.de>
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Fixes the filename for the 70mai midrive d08 dts.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Adds initial support for the 70mai midrive d08 dash camera.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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BreadBee is an opensource development board based on the
MStar msc313(e) SoC.
Hardware details, schematics and so on can be found at:
https://github.com/breadbee/breadbee
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This adds a family level dtsi for the mercury5 and then a
chip level dtsi for the ssc8336n chip.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This adds two family level dtsis for the infinity and infinity3
and then adds a chip level dtsi each for a chip in those families.
infinity3.dtsi includes infinity.dtsi as these SoCs share most of
their memory map and we would have a lot of duplication otherwise.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Adds initial dtsi for the base MStar/Sigmastar Armv7 SoCs.
These SoCs have very similar memory maps and this will avoid
duplicating nodes across multiple dtsis.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Initial support for the MStar/Sigmastar Armv7 based IP camera
and dashcam SoCs.
These chips are interesting in that they contain a Cortex-A7,
peripherals and system memory in a single tiny QFN package that
can be hand soldered allowing almost anyone to embed Linux
in their projects.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This patch adds i2c devices and muxes to the Sparx5 reference boards.
Link: https://lore.kernel.org/r/20200615133242.24911-11-lars.povlsen@microchip.com
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This adds a DPLL clock to the Sparx5 SoC. It is used to generate clock
to misc peripherals, specifically the SDHCI/eMMC controller.
Link: https://lore.kernel.org/r/20200615133242.24911-10-lars.povlsen@microchip.com
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The ROUT (right channel output of audio codec) was connected to INL
(left channel of audio amplifier) instead of INR (right channel of audio
amplifier).
Fixes: 8ddebad15e9b ("MIPS: qi_lb60: Migrate to devicetree")
Cc: stable@vger.kernel.org # v5.3
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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The CONFIG_MIPS_MACHINE option is dead code that hasn't been used in
years. The Kconfig option is not selected anywhere, and the
<asm/mips_machine.h> is not included anywhere either.
To make things worse, for years it co-existed with a separate MIPS
machine implementation as <asm/machine.h>. The two defined the
'mips_machine' structure with different fields, and the 'MIPS_MACHINE'
macro with different parameters. The two used the same memory area
(defined by the linker script) to store data, and you could totally use
the two at the same time for all kinds of funny results.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Since commit 3a77e0d75eed ("MIPS: ath79: drop machfiles"), this header
is not used anymore.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Clean up cpu-feature-overrides, which only repeat the default.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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If a stage-2 page-table contains an executable, read-only mapping at the
pte level (e.g. due to dirty logging being enabled), a subsequent write
fault to the same page which tries to install a larger block mapping
(e.g. due to dirty logging having been disabled) will erroneously inherit
the exec permission and consequently skip I-cache invalidation for the
rest of the block.
Ensure that exec permission is only inherited by write faults when the
new mapping is of the same size as the existing one. A subsequent
instruction abort will result in I-cache invalidation for the entire
block mapping.
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Quentin Perret <qperret@google.com>
Reviewed-by: Quentin Perret <qperret@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200723101714.15873-1-will@kernel.org
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So far, vcpu_has_ptrauth() is implemented in terms of system_supports_*_auth()
calls, which are declared "inline". In some specific conditions (clang
and SCS), the "inline" very much turns into an "out of line", which
leads to a fireworks when this predicate is evaluated on a non-VHE
system (right at the beginning of __hyp_handle_ptrauth).
Instead, make sure vcpu_has_ptrauth gets expanded inline by directly
using the cpus_have_final_cap() helpers, which are __always_inline,
generate much better code, and are the only thing that make sense when
running at EL2 on a nVHE system.
Fixes: 29eb5a3c57f7 ("KVM: arm64: Handle PtrAuth traps early")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200722162231.3689767-1-maz@kernel.org
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Xtensa always rebuilds the following even if nothing in the source code
has been changed. Passing V=2 shows the reason.
AS arch/xtensa/boot/boot-elf/bootstrap.o - due to bootstrap.o not in $(targets)
LDS arch/xtensa/boot/boot-elf/boot.lds - due to boot.lds not in $(targets)
They are built by if_changed(_dep). Add them to 'targets' so .*.cmd files
are included.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Message-Id: <20200722004707.779601-1-masahiroy@kernel.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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uImage and xipImage are always rebuilt in the xtensa kernel build
process. Add them to 'targets' to avoid that.
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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vmlinux.bin and vmlinux.bin.gz are always rebuilt in the kernel build
process. Add them to 'targets' and move them to the boot subdirectory
where their rules are. Update make rules that refer to them.
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Change "The the" to "For the".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org
Message-Id: <20200721210044.15458-1-rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Add SECCOMP to xtensa Kconfig, select HAVE_ARCH_SECCOMP_FILTER, add
TIF_SECCOMP and call secure_computing from do_syscall_trace_enter.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Use one of the reserved slots in struct user_pt_regs to return syscall
number in the GPR regset. Update syscall number from the GPR regset only
when it's non-zero.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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All bits needed for syscall audit are present on xtensa. Add
audit_syscall_entry and audit_syscall_exit calls and select
HAVE_ARCH_AUDITSYSCALL in Kconfig.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Fix dtschema validator warnings like:
l2-cache-controller@ac0000: $nodename:0:
'l2-cache-controller@ac0000' does not match '^(cache-controller|cpu)(@[0-9a-f,]+)*$'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20200626080642.4244-1-krzk@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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ASPEED device tree updates for 5.9
There is one new machine; AMD's EthanolX reference platform with an
AST2600 BMC.
Misc updates for Rainier, Tacoma, Wedge and Mihawk machines.
* tag 'aspeed-5.9-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed: (26 commits)
ARM: dts: Aspeed: tacoma: Enable EHCI controller
ARM: dts: aspeed: rainier: Enable EHCI controller
ARM: dts: aspeed: rainier: Switch OCCs to P10
ARM: dts: aspeed: rainier: Add FSI I2C masters
ARM: dts: aspeed: rainier: Add CFAM SPI controllers
ARM: dts: aspeed: rainier: Add I2C buses for NVMe use
ARM: dts: aspeed: Initial device tree for AMD EthanolX
ARM: dts: rainier: Describe GPIO mux on I2C3
ARM: dts: aspeed: wedge40: Enable pwm_tacho device
ARM: dts: aspeed: wedge40: Enable ADC device
ARM: dts: aspeed: wedge40: Disable unused i2c controllers
ARM: dts: aspeed: cmm: Fixup I2C tree
ARM: dts: aspeed: tacoma: Add CFAM reset GPIO
ARM: dts: aspeed: rainier: Add CFAM reset GPIO
ARM: dts: aspeed: tacoma: Fix gpio-key definitions
ARM: dts: rainier: Configure ball Y23 as GPIOP7 for MCLR_VPP
ARM: dts: aspeed: rainier: Add second cfam on the hub
ARM: dts: aspeed: rainier: Add line-name checkstop
ARM: dts: aspeed: tacoma: Remove checkstop gpio-key
ARM: dts: aspeed: tacoma: Enable XDMA engine
...
Link: https://lore.kernel.org/r/CACPK8Xf_Np7LtcDFhywi6Uk1EgUpb0pVVa+Lr9YEwBRjbjOKCQ@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Add device tree support for the Microsoft Lumia 950 smartphone.
It is based on msm8992 and supports booting Linux via a custom
EDK2 port.
Currently it supports:
* Screen console via EFIFB
* Booting via EFI_STUB
* SDHCI
* I2C
* PSCI core bringup
Please note that there is an implementation of EL2 startup
on this board, but it requires the user to resign from
PSCI and use spin-table instead. This revision sticks with
PSCI.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-14-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This commit adds support for the Xiaomi Libra (Mi 4C)
smartphone. It's based on the Qualcomm msm8992 SoC.
It currently supports:
* Screen console from bootloader
* SDHCI
* Regulator configuration
* Serial console
* I2C
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-13-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This lets us use clocks provided by RPM.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-12-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This SoC's firmware does not fully support the PSCI
spec, but it's good enough to bring the cores up.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-11-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add the PMU so we can get proper perf event support on this SoC.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-10-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add support for I2C to enable support for peripherals
such as touchscreens or sensors. Also add BLSP_UART2 interface.
Please note that the naming scheme follows downstream and as
abominable as it is, that's what we get.
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-9-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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