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* kvm_stat: do not show halt_wait_ns since it is not a cumulative statistic
x86:
* clean ups and fixes for bus lock vmexit and lazy allocation of rmaps
* two fixes for SEV-ES (one more coming as soon as I get reviews)
* fix for static_key underflow
ARM:
* Properly refcount pages used as a concatenated stage-2 PGD
* Fix missing unlock when detecting the use of MTE+VM_SHARED
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Tools:
- kvm_stat: do not show halt_wait_ns since it is not a cumulative statistic
x86:
- clean ups and fixes for bus lock vmexit and lazy allocation of rmaps
- two fixes for SEV-ES (one more coming as soon as I get reviews)
- fix for static_key underflow
ARM:
- Properly refcount pages used as a concatenated stage-2 PGD
- Fix missing unlock when detecting the use of MTE+VM_SHARED"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SEV-ES: reduce ghcb_sa_len to 32 bits
KVM: VMX: Remove redundant handling of bus lock vmexit
KVM: kvm_stat: do not show halt_wait_ns
KVM: x86: WARN if APIC HW/SW disable static keys are non-zero on unload
Revert "KVM: x86: Open code necessary bits of kvm_lapic_set_base() at vCPU RESET"
KVM: SEV-ES: Set guest_state_protected after VMSA update
KVM: X86: fix lazy allocation of rmaps
KVM: SEV-ES: fix length of string I/O
KVM: arm64: Release mmap_lock when using VM_SHARED with MTE
KVM: arm64: Report corrupted refcount at EL2
KVM: arm64: Fix host stage-2 PGD refcount
KVM: s390: Function documentation fixes
Here are some small driver core fixes for 5.15-rc6, all of which have
been in linux-next for a while with no reported issues.
They include:
- kernfs negative dentry bugfix
- simple pm bus fixes to resolve reported issues
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core fixes for 5.15-rc6, all of which have
been in linux-next for a while with no reported issues.
They include:
- kernfs negative dentry bugfix
- simple pm bus fixes to resolve reported issues"
* tag 'driver-core-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
drivers: bus: Delete CONFIG_SIMPLE_PM_BUS
drivers: bus: simple-pm-bus: Add support for probing simple bus only devices
driver core: Reject pointless SYNC_STATE_ONLY device links
kernfs: don't create a negative dentry if inactive node exists
- Properly refcount pages used as a concatenated stage-2 PGD
- Fix missing unlock when detecting the use of MTE+VM_SHARED
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Merge tag 'kvmarm-fixes-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.15, take #2
- Properly refcount pages used as a concatenated stage-2 PGD
- Fix missing unlock when detecting the use of MTE+VM_SHARED
For non-4K PAGE_SIZE configs, the largest gigantic huge page size is
CONT_PMD_SHIFT order. On arm64 with 64K PAGE_SIZE, the gigantic page is
16G. Therefore, one should be able to specify 'hugetlb_cma=16G' on the
kernel command line so that one gigantic page can be allocated from CMA.
However, when adding such an option the following message is produced:
hugetlb_cma: cma area should be at least 8796093022208 MiB
This is because the calculation for non-4K gigantic page order is
incorrect in the arm64 specific routine arm64_hugetlb_cma_reserve().
Fixes: abb7962adc ("arm64/hugetlb: Reserve CMA areas for gigantic pages on 16K and 64K configs")
Cc: <stable@vger.kernel.org> # 5.9.x
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20211005202529.213812-1-mike.kravetz@oracle.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
There is one build fix for Arm platforms that ended up impacting most
architectures because of the way the drivers/firmware Kconfig file is
wired up:
The CONFIG_QCOM_SCM dependency have caused a number of randconfig
regressions over time, and some still remain in v5.15-rc4. The
fix we agreed on in the end is to make this symbol selected by any
driver using it, and then building it even for non-Arm platforms with
CONFIG_COMPILE_TEST.
To make this work on all architectures, the drivers/firmware/Kconfig
file needs to be included for all architectures to make the symbol
itself visible.
In a separate discussion, we found that a sound driver patch that is
pending for v5.16 needs the same change to include this Kconfig file,
so the easiest solution seems to have my Kconfig rework included in v5.15.
There is a small merge conflict against an earlier partial fix for the
QCOM_SCM dependency problems.
Finally, the branch also includes a small unrelated build fix for NOMMU
architectures.
Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/
Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/
Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fixes from Arnd Bergmann:
"There is one build fix for Arm platforms that ended up impacting most
architectures because of the way the drivers/firmware Kconfig file is
wired up:
The CONFIG_QCOM_SCM dependency have caused a number of randconfig
regressions over time, and some still remain in v5.15-rc4. The fix we
agreed on in the end is to make this symbol selected by any driver
using it, and then building it even for non-Arm platforms with
CONFIG_COMPILE_TEST.
To make this work on all architectures, the drivers/firmware/Kconfig
file needs to be included for all architectures to make the symbol
itself visible.
In a separate discussion, we found that a sound driver patch that is
pending for v5.16 needs the same change to include this Kconfig file,
so the easiest solution seems to have my Kconfig rework included in
v5.15.
Finally, the branch also includes a small unrelated build fix for
NOMMU architectures"
Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/
Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/
Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/
* tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic/io.h: give stub iounmap() on !MMU same prototype as elsewhere
qcom_scm: hide Kconfig symbol
firmware: include drivers/firmware/Kconfig unconditionally
This is a larger than normal update for Arm SoC specific code, most
of it in device trees, but also drivers and the omap and at91/sama7
platforms:
- There are four new entries to the MAINTAINERS file: Sven Peter and
Alyssa Rosenzweig for Apple M1, Romain Perier for Mstar/sigmastar,
and Vignesh Raghavendra for TI K3
- Build fixes to address randconfig warnings in sharpsl, dove, omap1,
and qcom platforms as well as the scmi and op-tee subsystems
- Regression fixes for missing CONFIG_FB and other options for several
defconfigs
- Several bug fixes for the newly added Microchip SAMA7 platform,
mostly regarding power management
- Missing SMP barriers to protect accesses to SCMI virtio device
- Regression fixes for TI OMAP, including a boot-time hang on am335x.
- Lots of bug fixes for NXP i.MX, mostly addressing incorrect settings
in devicetree files, and one revert for broken suspend.
- Fixes for ARM Juno/Vexpress devicetree files, addressing a couple
of schema warnings.
- Regression fixes for qualcomm SoC specific drivers and devicetree
files, reverting an mdt_loader change and at least pastially
reverting some of the 5.15 DTS changes, plus some minor bugfixes
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is a larger than normal update for Arm SoC specific code, most of
it in device trees, but also drivers and the omap and at91/sama7
platforms:
- There are four new entries to the MAINTAINERS file: Sven Peter and
Alyssa Rosenzweig for Apple M1, Romain Perier for Mstar/sigmastar,
and Vignesh Raghavendra for TI K3
- Build fixes to address randconfig warnings in sharpsl, dove, omap1,
and qcom platforms as well as the scmi and op-tee subsystems
- Regression fixes for missing CONFIG_FB and other options for
several defconfigs
- Several bug fixes for the newly added Microchip SAMA7 platform,
mostly regarding power management
- Missing SMP barriers to protect accesses to SCMI virtio device
- Regression fixes for TI OMAP, including a boot-time hang on am335x.
- Lots of bug fixes for NXP i.MX, mostly addressing incorrect
settings in devicetree files, and one revert for broken suspend.
- Fixes for ARM Juno/Vexpress devicetree files, addressing a couple
of schema warnings.
- Regression fixes for qualcomm SoC specific drivers and devicetree
files, reverting an mdt_loader change and at least pastially
reverting some of the 5.15 DTS changes, plus some minor bugfixes"
* tag 'armsoc-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (64 commits)
MAINTAINERS: Add Sven Peter as ARM/APPLE MACHINE maintainer
MAINTAINERS: Add Alyssa Rosenzweig as M1 reviewer
firmware: arm_scmi: Add proper barriers to scmi virtio device
firmware: arm_scmi: Simplify spinlocks in virtio transport
ARM: dts: omap3430-sdp: Fix NAND device node
bus: ti-sysc: Use CLKDM_NOAUTO for dra7 dcan1 for errata i893
ARM: sharpsl_param: work around -Wstringop-overread warning
ARM: defconfig: gemini: Restore framebuffer
ARM: dove: mark 'putc' as inline
ARM: omap1: move omap15xx local bus handling to usb.c
MAINTAINERS: Add Vignesh to TI K3 platform maintainership
arm64: dts: imx8m*-venice-gw7902: fix M2_RST# gpio
ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence
arm64: dts: ls1028a: fix eSDHC2 node
arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2
ARM: dts: at91: sama7g5ek: to not touch slew-rate for SDMMC pins
ARM: dts: at91: sama7g5ek: use proper slew-rate settings for GMACs
ARM: at91: pm: preload base address of controllers in tlb
ARM: at91: pm: group constants and addresses loading
ARM: dts: at91: sama7g5ek: add suspend voltage for ddr3l rail
...
Compile-testing drivers that require access to a firmware layer
fails when that firmware symbol is unavailable. This happened
twice this week:
- My proposed to change to rework the QCOM_SCM firmware symbol
broke on ppc64 and others.
- The cs_dsp firmware patch added device specific firmware loader
into drivers/firmware, which broke on the same set of
architectures.
We should probably do the same thing for other subsystems as well,
but fix this one first as this is a dependency for other patches
getting merged.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Simon Trimmer <simont@opensource.cirrus.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- A couple of fixes from Haibo Chen to update SPI NOR TX bus width for
i.MX6 and i.MX8 boards. This becomes necessary because spi-nor driver
starts using the setting in DT.
- Mark buck2 always-on for i.MX8MM Kontron-n801x-som board to avoid the
core supply being turned off unexpectedly.
- Fix eSDHC2 device tree settings for LS1028A SoC.
- Disable GIC CPU interface before calling stby-poweroff sequence to fix
power-off failure on i.MX6.
- Fix M2_RST# GPIO pinmux on i.MX8M venice-gw7902 boards.
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Merge tag 'imx-fixes-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.15, round 2:
- A couple of fixes from Haibo Chen to update SPI NOR TX bus width for
i.MX6 and i.MX8 boards. This becomes necessary because spi-nor driver
starts using the setting in DT.
- Mark buck2 always-on for i.MX8MM Kontron-n801x-som board to avoid the
core supply being turned off unexpectedly.
- Fix eSDHC2 device tree settings for LS1028A SoC.
- Disable GIC CPU interface before calling stby-poweroff sequence to fix
power-off failure on i.MX6.
- Fix M2_RST# GPIO pinmux on i.MX8M venice-gw7902 boards.
* tag 'imx-fixes-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: imx8m*-venice-gw7902: fix M2_RST# gpio
ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence
arm64: dts: ls1028a: fix eSDHC2 node
arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2
arm64: dts: imx8: change the spi-nor tx
ARM: dts: imx: change the spi-nor tx
Link: https://lore.kernel.org/r/20211006125734.GA10197@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The simple-pm-bus driver is mandatory for CONFIG_OF based platforms to work
with fw_devlink. So, always compile it in for CONFIG_OF and delete the
config since it's no longer necessary.
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210929000735.585237-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This starts by reverting the SC7280 CPUfreq update, which was merged
before concensus about the associated drivers changes was reached.
It then moves the reserved-memory changes done to get IPA working on the
Lenovo Yoga C630 into the Yoga specific DTS, as changing the memory map
on the platform level did break a couple of the other boards.
It fixes the HDMI audio on Trogdor and add missing Aggre2 NOC qos clocks
on SDM6{30,36,60} which prevented some boards from booting.
Lastly it enables the PON module on SM8250/QRB5165, as the lack thereof
is blocking automated testing in LKFT.
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Merge tag 'qcom-arm64-fixes-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes
Qualcomm ARM64 DTS fixes for 5.15
This starts by reverting the SC7280 CPUfreq update, which was merged
before concensus about the associated drivers changes was reached.
It then moves the reserved-memory changes done to get IPA working on the
Lenovo Yoga C630 into the Yoga specific DTS, as changing the memory map
on the platform level did break a couple of the other boards.
It fixes the HDMI audio on Trogdor and add missing Aggre2 NOC qos clocks
on SDM6{30,36,60} which prevented some boards from booting.
Lastly it enables the PON module on SM8250/QRB5165, as the lack thereof
is blocking automated testing in LKFT.
* tag 'qcom-arm64-fixes-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: dts: qcom: sdm630: Add missing a2noc qos clocks
arm64: dts: qcom: qrb5165-rb5: enabled pwrkey and resin nodes
arm64: dts: qcom: pm8150: specify reboot mode magics
arm64: dts: qcom: pm8150: use qcom,pm8998-pon binding
arm64: dts: qcom: sc7180-trogdor: Fix lpass dai link for HDMI
arm64: dts: qcom: sdm850-yoga: Reshuffle IPA memory mappings
Revert "arm64: dts: qcom: sc7280: Fixup the cpufreq node"
Link: https://lore.kernel.org/r/20210930025509.1091-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
VM_SHARED mappings are currently forbidden in a memslot with MTE to
prevent two VMs racing to sanitise the same page. However, this check
is performed while holding current->mm's mmap_lock, but fails to release
it. Fix this by releasing the lock when needed.
Fixes: ea7fc1bb1c ("KVM: arm64: Introduce MTE VM feature")
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005122031.809857-1-qperret@google.com
Some of the refcount manipulation helpers used at EL2 are instrumented
to catch a corrupted state, but not all of them are treated equally. Let's
make things more consistent by instrumenting hyp_page_ref_dec_and_test()
as well.
Acked-by: Will Deacon <will@kernel.org>
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005090155.734578-6-qperret@google.com
The KVM page-table library refcounts the pages of concatenated stage-2
PGDs individually. However, when running KVM in protected mode, the
host's stage-2 PGD is currently managed by EL2 as a single high-order
compound page, which can cause the refcount of the tail pages to reach 0
when they shouldn't, hence corrupting the page-table.
Fix this by introducing a new hyp_split_page() helper in the EL2 page
allocator (matching the kernel's split_page() function), and make use of
it from host_s2_zalloc_pages_exact().
Fixes: 1025c8c0c6 ("KVM: arm64: Wrap the host with a stage 2")
Acked-by: Will Deacon <will@kernel.org>
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005090155.734578-5-qperret@google.com
On the LS1028A this instance of the eSDHC controller is intended for
either an eMMC or eSDIO card. It doesn't provide a card detect pin and
its IO voltage is fixed at 1.8V.
Remove the bogus broken-cd property, instead add the non-removable
property. Fix the voltage-ranges property and set it to 1.8V only.
Fixes: 491d3a3fc1 ("arm64: dts: ls1028a: Add esdhc node in dts")
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The buck2 output of the PMIC is the VDD core voltage of the cpu.
Switching off this will poweroff the CPU. Add the 'regulator-always-on'
property to avoid this.
Fixes: 8668d8b2e6 ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Before commit 0e30f47232 ("mtd: spi-nor: add support for DTR protocol"),
for all PP command, it only support 1-1-1 mode, no matter the tx setting
in dts. But after the upper commit, the logic change. It will choose
the best mode(fastest mode) which flash device and spi-nor host controller
both support.
qspi and fspi host controller do not support read 1-4-4 mode. so need to
set the tx to 1, let the common code finally select read 1-1-4 mode.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Fixes: 0e30f47232 ("mtd: spi-nor: add support for DTR protocol")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
- missing TLB flush
- nested virtualization fixes for SMM (secure boot on nested hypervisor)
and other nested SVM fixes
- syscall fuzzing fixes
- live migration fix for AMD SEV
- mirror VMs now work for SEV-ES too
- fixes for reset
- possible out-of-bounds access in IOAPIC emulation
- fix enlightened VMCS on Windows 2022
ARM:
- Add missing FORCE target when building the EL2 object
- Fix a PMU probe regression on some platforms
Generic:
- KCSAN fixes
selftests:
- random fixes, mostly for clang compilation
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A bit late... I got sidetracked by back-from-vacation routines and
conferences. But most of these patches are already a few weeks old and
things look more calm on the mailing list than what this pull request
would suggest.
x86:
- missing TLB flush
- nested virtualization fixes for SMM (secure boot on nested
hypervisor) and other nested SVM fixes
- syscall fuzzing fixes
- live migration fix for AMD SEV
- mirror VMs now work for SEV-ES too
- fixes for reset
- possible out-of-bounds access in IOAPIC emulation
- fix enlightened VMCS on Windows 2022
ARM:
- Add missing FORCE target when building the EL2 object
- Fix a PMU probe regression on some platforms
Generic:
- KCSAN fixes
selftests:
- random fixes, mostly for clang compilation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (43 commits)
selftests: KVM: Explicitly use movq to read xmm registers
selftests: KVM: Call ucall_init when setting up in rseq_test
KVM: Remove tlbs_dirty
KVM: X86: Synchronize the shadow pagetable before link it
KVM: X86: Fix missed remote tlb flush in rmap_write_protect()
KVM: x86: nSVM: don't copy virt_ext from vmcb12
KVM: x86: nSVM: test eax for 4K alignment for GP errata workaround
KVM: x86: selftests: test simultaneous uses of V_IRQ from L1 and L0
KVM: x86: nSVM: restore int_vector in svm_clear_vintr
kvm: x86: Add AMD PMU MSRs to msrs_to_save_all[]
KVM: x86: nVMX: re-evaluate emulation_required on nested VM exit
KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if !from_vmentry
KVM: x86: VMX: synthesize invalid VM exit when emulating invalid guest state
KVM: x86: nSVM: refactor svm_leave_smm and smm_enter_smm
KVM: x86: SVM: call KVM_REQ_GET_NESTED_STATE_PAGES on exit from SMM mode
KVM: x86: reset pdptrs_from_userspace when exiting smm
KVM: x86: nSVM: restore the L1 host state prior to resuming nested guest on SMM exit
KVM: nVMX: Filter out all unsupported controls when eVMCS was activated
KVM: KVM: Use cpumask_available() to check for NULL cpumask when kicking vCPUs
KVM: Clean up benign vcpu->cpu data races when kicking vCPUs
...
Commit 078fb7aa6a ("arm: dts: vexpress: Fix addressing issues with
'motherboard-bus' nodes") broke booting on a couple of 32-bit VExpress
boards. The problem is #address-cells size changed, but interrupt-map
was not updated. This results in the timer interrupt (and all the
other motherboard interrupts) not getting mapped.
As the 'interrupt-map' properties are all just duplicates across boards,
just move them into vexpress-v2m.dtsi and vexpress-v2m-rs1.dtsi.
Strictly speaking, 'interrupt-map' is dependent on the parent
interrupt controller, but it's not likely we'll ever have a different
parent than GICv2 on these old platforms. If there was one,
'interrupt-map' can still be overridden.
Link: https://lore.kernel.org/r/20210924214221.1877686-1-robh@kernel.org
Fixes: 078fb7aa6a ("arm: dts: vexpress: Fix addressing issues with 'motherboard-bus' nodes")
Cc: Guillaume Tucker <guillaume.tucker@collabora.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Reported-by: Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Here are some USB driver fixes and new device ids for 5.15-rc3.
They include:
- usb-storage quirk additions
- usb-serial new device ids
- usb-serial driver fixes
- USB roothub registration bugfix to resolve a long-reported
issue
- usb gadget driver fixes for a large number of small things
- dwc2 driver fixes
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are some USB driver fixes and new device ids for 5.15-rc3.
They include:
- usb-storage quirk additions
- usb-serial new device ids
- usb-serial driver fixes
- USB roothub registration bugfix to resolve a long-reported issue
- usb gadget driver fixes for a large number of small things
- dwc2 driver fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits)
USB: serial: option: add device id for Foxconn T99W265
USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
USB: serial: cp210x: add part-number debug printk
USB: serial: cp210x: fix dropped characters with CP2102
MAINTAINERS: usb, update Peter Korsgaard's entries
usb: musb: tusb6010: uninitialized data in tusb_fifo_write_unaligned()
usb-storage: Add quirk for ScanLogic SL11R-IDE older than 2.6c
Re-enable UAS for LaCie Rugged USB3-FW with fk quirk
USB: serial: option: remove duplicate USB device ID
USB: serial: mos7840: remove duplicated 0xac24 device ID
arm64: dts: qcom: ipq8074: remove USB tx-fifo-resize property
usb: gadget: f_uac2: Populate SS descriptors' wBytesPerInterval
usb: gadget: f_uac2: Add missing companion descriptor for feedback EP
usb: dwc2: gadget: Fix ISOC transfer complete handling for DDMA
usb: core: hcd: Modularize HCD stop configuration in usb_stop_hcd()
xhci: Set HCD flag to defer primary roothub registration
usb: core: hcd: Add support for deferring roothub registration
usb: dwc2: gadget: Fix ISOC flow for BDMA and Slave
usb: dwc3: core: balance phy init and exit
Revert "USB: bcma: Add a check for devm_gpiod_get"
...
Revert a recent commit related to memory management that turned out
to be problematic (Jia He).
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Merge tag 'acpi-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Revert a recent commit related to memory management that turned out to
be problematic (Jia He)"
* tag 'acpi-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI: Add memory semantics to acpi_os_map_memory()"
- It turns out that the optimised string routines merged in 5.14 are not
safe with in-kernel MTE (KASAN_HW_TAGS) because of reading beyond the
end of a string (strcmp, strncmp). Such reading may go across a 16
byte tag granule and cause a tag check fault. When KASAN_HW_TAGS is
enabled, use the generic strcmp/strncmp C implementation.
- An errata workaround for ThunderX relied on the CPU capabilities being
enabled in a specific order. This disappeared with the automatic
generation of the cpucaps.h file (sorted alphabetically). Fix it by
checking the current CPU only rather than the system-wide capability.
- Add system_supports_mte() checks on the kernel entry/exit path and
thread switching to avoid unnecessary barriers and function calls on
systems where MTE is not supported.
- kselftests: skip arm64 tests if the required features are missing.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- It turns out that the optimised string routines merged in 5.14 are
not safe with in-kernel MTE (KASAN_HW_TAGS) because of reading beyond
the end of a string (strcmp, strncmp). Such reading may go across a
16 byte tag granule and cause a tag check fault. When KASAN_HW_TAGS
is enabled, use the generic strcmp/strncmp C implementation.
- An errata workaround for ThunderX relied on the CPU capabilities
being enabled in a specific order. This disappeared with the
automatic generation of the cpucaps.h file (sorted alphabetically).
Fix it by checking the current CPU only rather than the system-wide
capability.
- Add system_supports_mte() checks on the kernel entry/exit path and
thread switching to avoid unnecessary barriers and function calls on
systems where MTE is not supported.
- kselftests: skip arm64 tests if the required features are missing.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Restore forced disabling of KPTI on ThunderX
kselftest/arm64: signal: Skip tests if required features are missing
arm64: Mitigate MTE issues with str{n}cmp()
arm64: add MTE supported check to thread switching and syscall entry/exit
Enable powerkey and resin nodes to let the board handle POWER and
Volume- keys properly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210916151341.1797512-3-dmitry.baryshkov@linaro.org
Specify recovery and bootloader magic values to be programmed by the
qcom-pon driver. This allows the bootloader to handle
reboot-to-bootloader functionality.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210916151341.1797512-2-dmitry.baryshkov@linaro.org
Change pm8150 to use the qcom,pm8998-pon compatible string for the pon
in order to pass reboot mode properly.
Fixes: 5101f22a5c ("arm64: dts: qcom: pm8150: Add base dts file")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210916151341.1797512-1-dmitry.baryshkov@linaro.org
- Add missing FORCE target when building the EL2 object
- Fix a PMU probe regression on some platforms
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Merge tag 'kvmarm-fixes-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
KVM/arm64 fixes for 5.15, take #1
- Add missing FORCE target when building the EL2 object
- Fix a PMU probe regression on some platforms
This reverts commit 437b38c511.
The memory semantics added in commit 437b38c511 causes SystemMemory
Operation region, whose address range is not described in the EFI memory
map to be mapped as NormalNC memory on arm64 platforms (through
acpi_os_map_memory() in acpi_ex_system_memory_space_handler()).
This triggers the following abort on an ARM64 Ampere eMAG machine,
because presumably the physical address range area backing the Opregion
does not support NormalNC memory attributes driven on the bus.
Internal error: synchronous external abort: 96000410 [#1] SMP
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.14.0+ #462
Hardware name: MiTAC RAPTOR EV-883832-X3-0001/RAPTOR, BIOS 0.14 02/22/2019
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[...snip...]
Call trace:
acpi_ex_system_memory_space_handler+0x26c/0x2c8
acpi_ev_address_space_dispatch+0x228/0x2c4
acpi_ex_access_region+0x114/0x268
acpi_ex_field_datum_io+0x128/0x1b8
acpi_ex_extract_from_field+0x14c/0x2ac
acpi_ex_read_data_from_field+0x190/0x1b8
acpi_ex_resolve_node_to_value+0x1ec/0x288
acpi_ex_resolve_to_value+0x250/0x274
acpi_ds_evaluate_name_path+0xac/0x124
acpi_ds_exec_end_op+0x90/0x410
acpi_ps_parse_loop+0x4ac/0x5d8
acpi_ps_parse_aml+0xe0/0x2c8
acpi_ps_execute_method+0x19c/0x1ac
acpi_ns_evaluate+0x1f8/0x26c
acpi_ns_init_one_device+0x104/0x140
acpi_ns_walk_namespace+0x158/0x1d0
acpi_ns_initialize_devices+0x194/0x218
acpi_initialize_objects+0x48/0x50
acpi_init+0xe0/0x498
If the Opregion address range is not present in the EFI memory map there
is no way for us to determine the memory attributes to use to map it -
defaulting to NormalNC does not work (and it is not correct on a memory
region that may have read side-effects) and therefore commit
437b38c511 should be reverted, which means reverting back to the
original behavior whereby address ranges that are mapped using
acpi_os_map_memory() default to the safe devicenGnRnE attributes on
ARM64 if the mapped address range is not defined in the EFI memory map.
Fixes: 437b38c511 ("ACPI: Add memory semantics to acpi_os_map_memory()")
Signed-off-by: Jia He <justin.he@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
A noted side-effect of commit 0c6c2d3615 ("arm64: Generate cpucaps.h")
is that cpucaps are now sorted, changing the enumeration order. This
assumed no dependencies between cpucaps, which turned out not to be true
in one case. UNMAP_KERNEL_AT_EL0 currently needs to be processed after
WORKAROUND_CAVIUM_27456. ThunderX systems are incompatible with KPTI, so
unmap_kernel_at_el0() bails if WORKAROUND_CAVIUM_27456 is set. But because
of the sorting, WORKAROUND_CAVIUM_27456 will not yet have been considered
when unmap_kernel_at_el0() checks for it, so the kernel tries to
run w/ KPTI - and quickly falls over.
Because all ThunderX implementations have homogeneous CPUs, we can remove
this dependency by just checking the current CPU for the erratum.
Fixes: 0c6c2d3615 ("arm64: Generate cpucaps.h")
Cc: <stable@vger.kernel.org> # 5.13.x
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210923145002.3394558-1-dann.frazier@canonical.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Invoke rseq_handle_notify_resume() from tracehook_notify_resume() now
that the two function are always called back-to-back by architectures
that have rseq. The rseq helper is stubbed out for architectures that
don't support rseq, i.e. this is a nop across the board.
Note, tracehook_notify_resume() is horribly named and arguably does not
belong in tracehook.h as literally every line of code in it has nothing
to do with tracing. But, that's been true since commit a42c6ded82
("move key_repace_session_keyring() into tracehook_notify_resume()")
first usurped tracehook_notify_resume() back in 2012. Punt cleaning that
mess up to future patches.
No functional change intended.
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210901203030.1292304-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
As with strlen(), the patches importing the updated str{n}cmp()
implementations were originally developed and tested before the
advent of CONFIG_KASAN_HW_TAGS, and have subsequently revealed
not to be MTE-safe. Since in-kernel MTE is still a rather niche
case, let it temporarily fall back to the generic C versions for
correctness until we can figure out the best fix.
Fixes: 758602c044 ("arm64: Import latest version of Cortex Strings' strcmp")
Fixes: 020b199bc7 ("arm64: Import latest version of Cortex Strings' strncmp")
Cc: <stable@vger.kernel.org> # 5.14.x
Reported-by: Branislav Rankov <branislav.rankov@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/34dc4d12eec0adae49b0ac927df642ed10089d40.1631890770.git.robin.murphy@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This lets us avoid doing unnecessary work on hardware that does not
support MTE, and will allow us to freely use MTE instructions in the
code called by mte_thread_switch().
Since this would mean that we do a redundant check in
mte_check_tfsr_el1(), remove it and add two checks now required in its
callers. This also avoids an unnecessary DSB+ISB sequence on the syscall
exit path for hardware not supporting MTE.
Fixes: 65812c6921 ("arm64: mte: Enable async tag check fault")
Cc: <stable@vger.kernel.org> # 5.13.x
Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/I02fd000d1ef2c86c7d2952a7f099b254ec227a5d
Link: https://lore.kernel.org/r/20210915190336.398390-1-pcc@google.com
[catalin.marinas@arm.com: adjust the commit log slightly]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Russell reported that since 5.13, KVM's probing of the PMU has
started to fail on his HW. As it turns out, there is an implicit
ordering dependency between the architectural PMU probing code and
and KVM's own probing. If, due to probe ordering reasons, KVM probes
before the PMU driver, it will fail to detect the PMU and prevent it
from being advertised to guests as well as the VMM.
Obviously, this is one probing too many, and we should be able to
deal with any ordering.
Add a callback from the PMU code into KVM to advertise the registration
of a host CPU PMU, allowing for any probing order.
Fixes: 5421db1be3 ("KVM: arm64: Divorce the perf code from oprofile helpers")
Reported-by: "Russell King (Oracle)" <linux@armlinux.org.uk>
Tested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/YUYRKVflRtUytzy5@shell.armlinux.org.uk
Cc: stable@vger.kernel.org
Add FORCE so that if_changed can detect the command line change.
We'll otherwise see a compilation warning since commit e1f86d7b4b
("kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and
filechk").
arch/arm64/kvm/hyp/nvhe/Makefile:58: FORCE prerequisite is missing
Cc: David Brazdil <dbrazdil@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210907052137.1059-1-yuzenghui@huawei.com
This should be the dai for display port. Without this set properly we
fail to get audio routed through external displays on trogdor. It looks
like we picked up v4[1] of this patch when there was a v7[2]. The v7
patch still had the wrong sound-dai but at least we can fix all this up
and audio works.
Cc: Srinivasa Rao Mandadapu <srivasam@qti.qualcomm.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Fixes: b22d313e17 ("arm64: dts: qcom: sc7180-trogdor: Add lpass dai link for HDMI")
Link: https://lore.kernel.org/r/20210721080549.28822-3-srivasam@qti.qualcomm.com [1]
Link: https://lore.kernel.org/r/20210726120910.20335-3-srivasam@codeaurora.org [2]
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210811224141.1110495-1-swboyd@chromium.org
Upstream commit 2e01e0c214 ("arm64: dts: qcom: sdm850-yoga:
Enable IPA") shuffled reserved memory regions in sdm845.dtsi
to make firmware loading succeed and enable the ipa device on
sdm845-yoga but it broke the other common users of those
memory regions like Xiaomi Pocophone F1.
So this patch effectively revert those upstream commit changes
and move all the relevant changes to sdm850-lenovo-yoga-c630.dts
instead.
Fixes: 2e01e0c214 ("arm64: dts: qcom: sdm850-yoga: Enable IPA")
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210916200554.2434439-1-amit.pundir@linaro.org
- Fix the memset() size when re-initialising the SVE state.
- Mark __stack_chk_guard as __ro_after_init.
- Remove duplicate include.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes and cleanups from Catalin Marinas:
- Fix the memset() size when re-initialising the SVE state.
- Mark __stack_chk_guard as __ro_after_init.
- Remove duplicate include.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Mark __stack_chk_guard as __ro_after_init
arm64/kernel: remove duplicate include in process.c
arm64/sve: Use correct size when reinitialising SVE state
The 'motherboard-bus' node in Arm Ltd boards fails schema checks as
'simple-bus' child nodes must have a unit-address. The 'ranges' handling is
also wrong (or at least strange) as the mapping of SMC chip selects should
be in the 'arm,vexpress,v2m-p1' node rather than a generic 'simple-bus'
node. Either there's 1 too many levels of 'simple-bus' nodes or 'ranges'
should be moved down a level. The latter change is more simple, so let's do
that. As the 'ranges' value doesn't vary for a given motherboard instance,
we can move 'ranges' into the motherboard dtsi files.
Link: https://lore.kernel.org/r/20210819184239.1192395-6-robh@kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
__stack_chk_guard is setup once while init stage and never changed
after that.
Although the modification of this variable at runtime will usually
cause the kernel to crash (so does the attacker), it should be marked
as __ro_after_init, and it should not affect performance if it is
placed in the ro_after_init section.
Signed-off-by: Dan Li <ashimida@linux.alibaba.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/1631612642-102881-1-git-send-email-ashimida@linux.alibaba.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Remove all but the first include of linux/sched.h from process.c
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210902011126.29828-1-lv.ruyi@zte.com.cn
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
When we need a buffer for SVE register state we call sve_alloc() to make
sure that one is there. In order to avoid repeated allocations and frees
we keep the buffer around unless we change vector length and just memset()
it to ensure a clean register state. The function that deals with this
takes the task to operate on as an argument, however in the case where we
do a memset() we initialise using the SVE state size for the current task
rather than the task passed as an argument.
This is only an issue in the case where we are setting the register state
for a task via ptrace and the task being configured has a different vector
length to the task tracing it. In the case where the buffer is larger in
the traced process we will leak old state from the traced process to
itself, in the case where the buffer is smaller in the traced process we
will overflow the buffer and corrupt memory.
Fixes: bc0ee47603 ("arm64/sve: Core task context handling")
Cc: <stable@vger.kernel.org> # 4.15.x
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210909165356.10675-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Drop the '#interrupt-cells' property in the motherboard node which has no
effect as the node is neither an interrupt-controller or interrupt-map
(that's in the parent node).
Drop 'model' as it is not used by software nor documented.
Drop 'arm,v2m-memory-map' as it is not used by software. The purpose was
to describe which memory map, but that's all described by the DT
already.
Link: https://lore.kernel.org/r/20210819184239.1192395-4-robh@kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The arm,mhu bindings and driver do not define interrupt-names, so drop
the property to fix warnings:
arch/arm64/boot/dts/arm/juno-r2.dt.yaml: mhu@2b1f0000: 'interrupt-names' does not match any of the regexes: 'pinctrl-[0-9]+'
Link: https://lore.kernel.org/r/20210820081733.83976-3-krzysztof.kozlowski@canonical.com
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Align the watchdog and mmc device node names with the schema to fix
warnings like:
mmci@50000: $nodename:0: 'mmci@50000' does not match '^mmc(@.*)?$'
wdt@f0000: $nodename:0: 'wdt@f0000' does not match '^watchdog(@.*|-[0-9a-f])?$'
Link: https://lore.kernel.org/r/20210820081733.83976-1-krzysztof.kozlowski@canonical.com
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
tx-fifo-resize is now added by default by the dwc3-qcom driver
to the SNPS DWC3 child node.
So, lets drop the tx-fifo-resize property from dwc3-qcom nodes
as having it there will cause the dwc3-qcom driver to error and
abort probe with:
[ 1.362938] dwc3-qcom 8af8800.usb: unable to add property
[ 1.368405] dwc3-qcom 8af8800.usb: failed to register DWC3 Core, err=-17
Fixes: cefdd52fa0 ("usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default")
Signed-off-by: Robert Marko <robimarko@gmail.com>
Link: https://lore.kernel.org/r/20210902220325.1783567-1-robimarko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge patch series from Nick Desaulniers to update the minimum gcc
version to 5.1.
This is some of the left-overs from the merge window that I didn't want
to deal with yesterday, so it comes in after -rc1 but was sent before.
Gcc-4.9 support has been an annoyance for some time, and with -Werror I
had the choice of applying a fairly big patch from Kees Cook to remove a
fair number of initializer warnings (still leaving some), or this patch
series from Nick that just removes the source of the problem.
The initializer cleanups might still be worth it regardless, but
honestly, I preferred just tackling the problem with gcc-4.9 head-on.
We've been more aggressiuve about no longer having to care about
compilers that were released a long time ago, and I think it's been a
good thing.
I added a couple of patches on top to sort out a few left-overs now that
we no longer support gcc-4.x.
As noted by Arnd, as a result of this minimum compiler version upgrade
we can probably change our use of '--std=gnu89' to '--std=gnu11', and
finally start using local loop declarations etc. But this series does
_not_ yet do that.
Link: https://lore.kernel.org/all/20210909182525.372ee687@canb.auug.org.au/
Link: https://lore.kernel.org/lkml/CAK7LNASs6dvU6D3jL2GG3jW58fXfaj6VNOe55NJnTB8UPuk2pA@mail.gmail.com/
Link: https://github.com/ClangBuiltLinux/linux/issues/1438
* emailed patches from Nick Desaulniers <ndesaulniers@google.com>:
Drop some straggling mentions of gcc-4.9 as being stale
compiler_attributes.h: drop __has_attribute() support for gcc4
vmlinux.lds.h: remove old check for GCC 4.9
compiler-gcc.h: drop checks for older GCC versions
Makefile: drop GCC < 5 -fno-var-tracking-assignments workaround
arm64: remove GCC version check for ARCH_SUPPORTS_INT128
powerpc: remove GCC version check for UPD_CONSTR
riscv: remove Kconfig check for GCC version for ARCH_RV64I
Kconfig.debug: drop GCC 5+ version check for DWARF5
mm/ksm: remove old GCC 4.9+ check
compiler.h: drop fallback overflow checkers
Documentation: raise minimum supported version of GCC to 5.1
Now that GCC 5.1 is the minimally supported compiler version, this
Kconfig check is no longer necessary.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The simple-panel driver already has hard-coded timings for
"arm,rtsm-display", and as such screams at us for trying to override a
fixed mode from DT. Since the exact values probably don't matter all
that much anyway, just remove the DT node to keep boot quiet.
Link: https://lore.kernel.org/r/2701c187cf8e0762df38f68cc069ec2c29a3b5a9.1626283322.git.robin.murphy@arm.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
