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Andrew Jones <ajones@ventanamicro.com> says:
Zawrs provides two instructions (wrs.nto and wrs.sto), where both are
meant to allow the hart to enter a low-power state while waiting on a
store to a memory location. The instructions also both wait an
implementation-defined "short" duration (unless the implementation
terminates the stall for another reason). The difference is that while
wrs.sto will terminate when the duration elapses, wrs.nto, depending on
configuration, will either just keep waiting or an ILL exception will be
raised. Linux will use wrs.nto, so if platforms have an implementation
which falls in the "just keep waiting" category (which is not expected),
then it should _not_ advertise Zawrs in the hardware description.
Like wfi (and with the same {m,h}status bits to configure it), when
wrs.nto is configured to raise exceptions it's expected that the higher
privilege level will see the instruction was a wait instruction, do
something, and then resume execution following the instruction. For
example, KVM does configure exceptions for wfi (hstatus.VTW=1) and
therefore also for wrs.nto. KVM does this for wfi since it's better to
allow other tasks to be scheduled while a VCPU waits for an interrupt.
For waits such as those where wrs.nto/sto would be used, which are
typically locks, it is also a good idea for KVM to be involved, as it
can attempt to schedule the lock holding VCPU.
This series starts with Christoph's addition of the riscv
smp_cond_load_relaxed function which applies wrs.sto when available.
That patch has been reworked to use wrs.nto and to use the same approach
as Arm for the wait loop, since we can't have arbitrary C code between
the load-reserved and the wrs. Then, hwprobe support is added (since the
instructions are also usable from usermode), and finally KVM is
taught about wrs.nto, allowing guests to see and use the Zawrs
extension.
We still don't have test results from hardware, and it's not possible to
prove that using Zawrs is a win when testing on QEMU, not even when
oversubscribing VCPUs to guests. However, it is possible to use KVM
selftests to force a scenario where we can prove Zawrs does its job and
does it well. [4] is a test which does this and, on my machine, without
Zawrs it takes 16 seconds to complete and with Zawrs it takes 0.25
seconds.
This series is also available here [1]. In order to use QEMU for testing
a build with [2] is needed. In order to enable guests to use Zawrs with
KVM using kvmtool, the branch at [3] may be used.
[1] https://github.com/jones-drew/linux/commits/riscv/zawrs-v3/
[2] https://lore.kernel.org/all/20240312152901.512001-2-ajones@ventanamicro.com/
[3] https://github.com/jones-drew/kvmtool/commits/riscv/zawrs/
[4] https://github.com/jones-drew/linux/commit/cb2beccebcece10881db842ed69bdd5715cfab5d
Link: https://lore.kernel.org/r/20240426100820.14762-8-ajones@ventanamicro.com
* b4-shazam-merge:
KVM: riscv: selftests: Add Zawrs extension to get-reg-list test
KVM: riscv: Support guest wrs.nto
riscv: hwprobe: export Zawrs ISA extension
riscv: Add Zawrs support for spinlocks
dt-bindings: riscv: Add Zawrs ISA extension description
riscv: Provide a definition for 'pause'
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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* iommu/core:
docs: iommu: Remove outdated Documentation/userspace-api/iommu.rst
iommufd: Use atomic_long_try_cmpxchg() in incr_user_locked_vm()
iommu/iova: Add missing MODULE_DESCRIPTION() macro
iommu/dma: Prune redundant pgprot arguments
iommu: Make iommu_sva_domain_alloc() static
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* iommu/qualcomm/msm:
dt-bindings: iommu: Convert msm,iommu-v0 to yaml
dt-bindings: iommu: qcom,iommu: Add MSM8953 GPU IOMMU to SMMUv2 compatibles
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Export Zawrs ISA extension through hwprobe.
[Palmer: there's a gap in the numbers here as there will be a merge
conflict when this is picked up. To avoid confusion I just set the
hwprobe ID to match what it would be post-merge.]
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Clément Léger <cleger@rivosinc.com>
Link: https://lore.kernel.org/r/20240426100820.14762-12-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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* iommu/arm/smmu: (32 commits)
iommu: Move IOMMU_DIRTY_NO_CLEAR define
iommu/arm-smmu-qcom: Register the TBU driver in qcom_smmu_impl_init
iommu/arm-smmu-v3: Enable HTTU for stage1 with io-pgtable mapping
iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc
iommu/io-pgtable-arm: Add read_and_clear_dirty() support
iommu/arm-smmu-v3: Add feature detection for HTTU
iommu/arm-smmu-v3: Add support for domain_alloc_user fn
iommu/arm-smmu-qcom: record reason for deferring probe
iommu/arm-smmu: Pretty-print context fault related regs
iommu/arm-smmu-qcom-debug: Do not print for handled faults
iommu/arm-smmu: Add CB prefix to register bitfields
dt-bindings: arm-smmu: Add X1E80100 GPU SMMU
iommu/arm-smmu-v3: add missing MODULE_DESCRIPTION() macro
iommu/arm-smmu-v3: Shrink the strtab l1_desc array
iommu/arm-smmu-v3: Do not zero the strtab twice
iommu/arm-smmu-v3: Allow setting a S1 domain to a PASID
iommu/arm-smmu-v3: Allow a PASID to be set when RID is IDENTITY/BLOCKED
iommu/arm-smmu-v3: Test the STE S1DSS functionality
iommu/arm-smmu-v3: Allow IDENTITY/BLOCKED to be set while PASID is used
iommu/arm-smmu-v3: Put the SVA mmu notifier in the smmu_domain
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD
LoongArch KVM changes for v6.11
1. Add ParaVirt steal time support.
2. Add some VM migration enhancement.
3. Add perf kvm-stat support for loongarch.
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https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
Assortment of tiny fixes which are not time critical:
- Rejecting memory region operations for ucontrol mode VMs
- Rewind the PSW on host intercepts for VSIE
- Remove unneeded include
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Adds documentation of KVM_PRE_FAULT_MEMORY ioctl. [1]
It populates guest memory. It doesn't do extra operations on the
underlying technology-specific initialization [2]. For example,
CoCo-related operations won't be performed. Concretely for TDX, this API
won't invoke TDH.MEM.PAGE.ADD() or TDH.MR.EXTEND(). Vendor-specific APIs
are required for such operations.
The key point is to adapt of vcpu ioctl instead of VM ioctl. First,
populating guest memory requires vcpu. If it is VM ioctl, we need to pick
one vcpu somehow. Secondly, vcpu ioctl allows each vcpu to invoke this
ioctl in parallel. It helps to scale regarding guest memory size, e.g.,
hundreds of GB.
[1] https://lore.kernel.org/kvm/Zbrj5WKVgMsUFDtb@google.com/
[2] https://lore.kernel.org/kvm/Ze-TJh0BBOWm9spT@google.com/
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Message-ID: <9a060293c9ad9a78f1d8994cfe1311e818e99257.1712785629.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add the devicetree schema for the realtek,otto-timer present on a number
of Realtek SoCs.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240710043524.1535151-6-chris.packham@alliedtelesis.co.nz
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Add compatible string for SOPHGO SG2002 Core-Local Interrupt Controller.
Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240709-sg2002-v3-2-af779c3d139d@bootlin.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Document support for the Timer Unit (TMU) on R-Car Gen2 SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/de215e00e180c266527b7bd7cff5f75df918da98.1716985096.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Document support for the Timer Unit (TMU) on RZ/G1 SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/bdc30850526f448b8480d9a5e65e35739f416771.1716985096.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Document support for the Timer Unit (TMU) on the R-Mobile APE6 (R8A73A4)
Soc.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/17e3fd5f27ab540c8611545ad3dc5a697ca66c58.1716985096.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Add a compatible string for the interrupt controller found on the
rtl930x SoCs. The interrupt controller has registers for VPE1 so these
are added as a second reg cell.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add the rtl9302 SoC and the Cameo RTL9302C_2xRTL8224_2XGE reference
board to the list of Realtek compatible strings.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add entry for Cameo Communications (https://www.cameo.com.tw/)
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Implement ieee754 NAN2008 emulation mode.
When this mode is enabled, kernel will accept ELF file
compiled for both NaN 2008 and NaN legacy, but if hardware
does not have capability to match ELF's NaN mode, __own_fpu
will fail for corresponding thread and fpuemu will then kick
in.
This mode trade performance for correctness, while maintaining
support for both NaN mode regardless of hardware capability.
It is useful for multilib installation that have both types
of binary exist in system.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Add description for the Zawrs (Wait-on-Reservation-Set) ISA extension
which was ratified in commit 98918c844281 of riscv-isa-manual.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240426100820.14762-10-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Commit 732b32daef80 ("powerpc: Remove core support for 40x") removed 40x.
Update documentation accordingly.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/c2d64bebc514ca892a12e51a68821a6317048d3a.1720694954.git.christophe.leroy@csgroup.eu
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.11
Most likely the last "new features" pull request for v6.11 with
changes both in stack and in drivers. The big thing is the multiple
radios for wiphy feature which makes it possible to better advertise
radio capabilities to user space. mt76 enabled MLO and iwlwifi
re-enabled MLO, ath12k and rtw89 Wi-Fi 6 devices got WoWLAN support.
Major changes:
cfg80211/mac80211
* remove DEAUTH_NEED_MGD_TX_PREP flag
* multiple radios per wiphy support
mac80211_hwsim
* multi-radio wiphy support
ath12k
* DebugFS support for datapath statistics
* WCN7850: support for WoW (Wake on WLAN)
* WCN7850: device-tree bindings
ath11k
* QCA6390: device-tree bindings
iwlwifi
* mvm: re-enable Multi-Link Operation (MLO)
* aggregation (A-MSDU) optimisations
rtw89
* preparation for RTL8852BE-VT support
* WoWLAN support for WiFi 6 chips
* 36-bit PCI DMA support
mt76
* mt7925 Multi-Link Operation (MLO) support
* tag 'wireless-next-2024-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (204 commits)
wifi: mac80211: fix AP chandef capturing in CSA
wifi: iwlwifi: correctly reference TSO page information
wifi: mt76: mt792x: fix scheduler interference in drv own process
wifi: mt76: mt7925: enabling MLO when the firmware supports it
wifi: mt76: mt7925: remove the unused mt7925_mcu_set_chan_info
wifi: mt76: mt7925: update mt7925_mac_link_bss_add for MLO
wifi: mt76: mt7925: update mt7925_mcu_bss_basic_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_set_timing for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_phy_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_rate_ctrl_tlv for MLO
wifi: mt76: mt7925: add mt7925_mcu_sta_eht_mld_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_update for MLO
wifi: mt76: mt7925: update mt7925_mcu_add_bss_info for MLO
wifi: mt76: mt7925: update mt7925_mcu_bss_mld_tlv for MLO
wifi: mt76: mt7925: update mt7925_mcu_sta_mld_tlv for MLO
wifi: mt76: mt7925: add mt7925_[assign,unassign]_vif_chanctx
wifi: mt76: add def_wcid to struct mt76_wcid
wifi: mt76: mt7925: report link information in rx status
wifi: mt76: mt7925: update rate index according to link id
wifi: mt76: mt7925: add link handling in the mt7925_ipv6_addr_change
...
====================
Link: https://patch.msgid.link/20240711102353.0C849C116B1@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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On newer SoCs, the I2C hardware can require a power domain to operate.
Since the same compatible is used for older and newer SoCs make
power-domains property optional.
Signed-off-by: George Stark <gnstark@salutedevices.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
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Add compatible string for sama7d65. Like sam9x60 and sam9x7, it requires
to bind to "atmel,at91rm9200-spi".
Group these three under the same enum, sorted alphanumerically, and
remove previously added item.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240711165402.373634-1-nicolas.ferre@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Convert the Cirrus Logic CS42448/CS42888 audio CODEC bindings to DT
schema format. Set power supply properties to required only for CS42888.
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240710072756.99765-1-animeshagarwal28@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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PCI subfunctions (SF) are anchored on the auxiliary bus. PCI physical
and virtual functions are anchored on the PCI bus. The irq information
of each such function is visible to users via sysfs directory "msi_irqs"
containing files for each irq entry. However, for PCI SFs such
information is unavailable. Due to this users have no visibility on IRQs
used by the SFs.
Secondly, an SF can be multi function device supporting rdma, netdevice
and more. Without irq information at the bus level, the user is unable
to view or use the affinity of the SF IRQs.
Hence to match to the equivalent PCI PFs and VFs, add "irqs" directory,
for supporting auxiliary devices, containing file for each irq entry.
For example:
$ ls /sys/bus/auxiliary/devices/mlx5_core.sf.1/irqs/
50 51 52 53 54 55 56 57 58
Cc: Simon Horman <horms@kernel.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
v9-v10:
- remove Przemek RB
- add name field to auxiliary_irq_info (Greg and Przemek)
- handle bogus IRQ in auxiliary_device_sysfs_irq_remove (Greg)
v8-v9:
- add Przemek RB
- use guard() in auxiliary_irq_dir_prepare (Paolo)
v7-v8:
- use cleanup.h for info and name fields (Greg)
- correct error flow in auxiliary_irq_dir_prepare (Przemek)
- add documentation for new fields of auxiliary_device (Simon)
v6-v7:
- dynamically creating irqs directory when first irq file created (Greg)
- removed irqs flag and simplified the dev_add() API (Greg)
- move sysfs related new code to a new auxiliary_sysfs.c file (Greg)
v5-v6:
- removed concept of shared and exclusive and hence global xarray (Greg)
v4-v5:
- restore global mutex and replace refcount_t with simple integer (Greg)
v3->4:
- remove global mutex (Przemek)
v2->v3:
- fix function declaration in case SYSFS isn't defined
v1->v2:
- move #ifdefs from drivers/base/auxiliary.c to
include/linux/auxiliary_bus.h (Greg)
- use EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL (Greg)
- Fix kzalloc(ref) to kzalloc(*ref) (Simon)
- Add return description in auxiliary_device_sysfs_irq_add() kdoc (Simon)
- Fix auxiliary_irq_mode_show doc (kernel test boot)
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Cross-merge networking fixes after downstream PR.
Conflicts:
net/sched/act_ct.c
26488172b029 ("net/sched: Fix UAF when resolving a clash")
3abbd7ed8b76 ("act_ct: prepare for stolen verdict coming from conntrack and nat engine")
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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* for-next/vcpu-hotplug: (21 commits)
: arm64 support for virtual CPU hotplug (ACPI)
irqchip/gic-v3: Fix 'broken_rdists' unused warning when !SMP and !ACPI
arm64: Kconfig: Fix dependencies to enable ACPI_HOTPLUG_CPU
cpumask: Add enabled cpumask for present CPUs that can be brought online
arm64: document virtual CPU hotplug's expectations
arm64: Kconfig: Enable hotplug CPU on arm64 if ACPI_PROCESSOR is enabled.
arm64: arch_register_cpu() variant to check if an ACPI handle is now available.
arm64: psci: Ignore DENIED CPUs
irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs
irqchip/gic-v3: Don't return errors from gic_acpi_match_gicc()
arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry
arm64: acpi: Move get_cpu_for_acpi_id() to a header
ACPI: Add post_eject to struct acpi_scan_handler for cpu hotplug
ACPI: scan: switch to flags for acpi_scan_check_and_detach()
ACPI: processor: Register deferred CPUs from acpi_processor_get_info()
ACPI: processor: Add acpi_get_processor_handle() helper
ACPI: processor: Move checks and availability of acpi_processor earlier
ACPI: processor: Fix memory leaks in error paths of processor_add()
ACPI: processor: Return an error if acpi_processor_get_info() fails in processor_add()
ACPI: processor: Drop duplicated check on _STA (enabled + present)
cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER
...
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'for-next/mte', 'for-next/errata', 'for-next/acpi', 'for-next/gic-v3-pmr' and 'for-next/doc', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
perf: add missing MODULE_DESCRIPTION() macros
perf: arm_pmuv3: Include asm/arm_pmuv3.h from linux/perf/arm_pmuv3.h
perf: arm_v6/7_pmu: Drop non-DT probe support
perf/arm: Move 32-bit PMU drivers to drivers/perf/
perf: arm_pmuv3: Drop unnecessary IS_ENABLED(CONFIG_ARM64) check
perf: arm_pmuv3: Avoid assigning fixed cycle counter with threshold
perf: imx_perf: add support for i.MX95 platform
perf: imx_perf: fix counter start and config sequence
perf: imx_perf: refactor driver for imx93
perf: imx_perf: let the driver manage the counter usage rather the user
perf: imx_perf: add macro definitions for parsing config attr
dt-bindings: perf: fsl-imx-ddr: Add i.MX95 compatible
perf: pmuv3: Add new Cortex and Neoverse PMUs
dt-bindings: arm: pmu: Add new Cortex and Neoverse cores
perf/arm-cmn: Enable support for tertiary match group
perf/arm-cmn: Decouple wp_config registers from filter group number
* for-next/cpufeature:
: Various cpufeature infrastructure patches
arm64/cpufeature: Replace custom macros with fields from ID_AA64PFR0_EL1
KVM: arm64: Replace custom macros with fields from ID_AA64PFR0_EL1
arm64/cpufeatures/kvm: Add ARMv8.9 FEAT_ECBHB bits in ID_AA64MMFR1 register
* for-next/misc:
: Miscellaneous patches
arm64: smp: Fix missing IPI statistics
arm64: Cleanup __cpu_set_tcr_t0sz()
arm64/mm: Stop using ESR_ELx_FSC_TYPE during fault
arm64: Kconfig: fix typo in __builtin_return_adddress
ARM64: reloc_test: add missing MODULE_DESCRIPTION() macro
arm64: implement raw_smp_processor_id() using thread_info
arm64/arch_timer: include <linux/percpu.h>
* for-next/kselftest:
: arm64 kselftest updates
selftests: arm64: tags: remove the result script
selftests: arm64: tags_test: conform test to TAP output
kselftest/arm64: Fix a couple of spelling mistakes
kselftest/arm64: Fix redundancy of a testcase
kselftest/arm64: Include kernel mode NEON in fp-stress
* for-next/mte:
: MTE updates
arm64: mte: Make mte_check_tfsr_*() conditional on KASAN instead of MTE
* for-next/errata:
: Arm CPU errata workarounds
arm64: errata: Expand speculative SSBS workaround
arm64: errata: Unify speculative SSBS errata logic
arm64: cputype: Add Cortex-X925 definitions
arm64: cputype: Add Cortex-A720 definitions
arm64: cputype: Add Cortex-X3 definitions
* for-next/acpi:
: arm64 ACPI patches
ACPI: Add acpi=nospcr to disable ACPI SPCR as default console on ARM64
ACPI / amba: Drop unnecessary check for registered amba_dummy_clk
arm64: FFH: Move ACPI specific code into drivers/acpi/arm64/
arm64: cpuidle: Move ACPI specific code into drivers/acpi/arm64/
ACPI: arm64: Sort entries alphabetically
* for-next/gic-v3-pmr:
: arm64: irqchip/gic-v3: Use compiletime constant PMR values
arm64: irqchip/gic-v3: Select priorities at boot time
irqchip/gic-v3: Detect GICD_CTRL.DS and SCR_EL3.FIQ earlier
irqchip/gic-v3: Make distributor priorities variables
irqchip/gic-common: Remove sync_access callback
wordpart.h: Add REPEAT_BYTE_U32()
* for-next/doc:
: arm64 documentation updates
Documentation: arm64: Update memory.rst for TBI
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Add support for driver-specific devlink local_forwarding param.
Supported values are "enabled", "disabled" and "prioritized".
Default configuration is set to "enabled".
Add documentation in networking/devlink/ice.rst.
In previous generations of Intel NICs the transmit scheduler was only
limited by PCIe bandwidth when scheduling/assigning hairpin-bandwidth
between VFs. Changes to E810 HW design introduced scheduler limitation,
so that available hairpin-bandwidth is bound to external port speed.
In order to address this limitation and enable NFV services such as
"service chaining" a knob to adjust the scheduler config was created.
Driver can send a configuration message to the FW over admin queue and
internal FW logic will reconfigure HW to prioritize and add more BW to
VF to VF traffic. An end result, for example, 10G port will no longer
limit hairpin-bandwidth to 10G and much higher speeds can be achieved.
Devlink local_forwarding param set to "prioritized" enables higher
hairpin-bandwitdh on related PFs. Configuration is applicable only to
8x10G and 4x25G cards.
Changing local_forwarding configuration will trigger CORER reset in
order to take effect.
Example command to change current value:
devlink dev param set pci/0000:b2:00.3 name local_forwarding \
value prioritized \
cmode runtime
Co-developed-by: Michal Wilczynski <michal.wilczynski@intel.com>
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Pawel Kaminski <pawel.kaminski@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Although "TAP" word is being used already in documentation, but it hasn't
been defined in informative way for developers that how to write TAP
conformant tests and what are the benefits. Write a short brief about it.
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add compatible for EXC81W32 touchscreen controllers.
They use the same protocol and have the same resolution as EXC80H84.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240710-input-exc3000-exc81w32-v3-1-4272183628b4@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf and netfilter.
Current release - regressions:
- core: fix rc7's __skb_datagram_iter() regression
Current release - new code bugs:
- eth: bnxt: fix crashes when reducing ring count with active RSS
contexts
Previous releases - regressions:
- sched: fix UAF when resolving a clash
- skmsg: skip zero length skb in sk_msg_recvmsg2
- sunrpc: fix kernel free on connection failure in
xs_tcp_setup_socket
- tcp: avoid too many retransmit packets
- tcp: fix incorrect undo caused by DSACK of TLP retransmit
- udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
- eth: ks8851: fix deadlock with the SPI chip variant
- eth: i40e: fix XDP program unloading while removing the driver
Previous releases - always broken:
- bpf:
- fix too early release of tcx_entry
- fail bpf_timer_cancel when callback is being cancelled
- bpf: fix order of args in call to bpf_map_kvcalloc
- netfilter: nf_tables: prefer nft_chain_validate
- ppp: reject claimed-as-LCP but actually malformed packets
- wireguard: avoid unaligned 64-bit memory accesses"
* tag 'net-6.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (33 commits)
net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket
net/sched: Fix UAF when resolving a clash
net: ks8851: Fix potential TX stall after interface reopen
udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
netfilter: nf_tables: prefer nft_chain_validate
netfilter: nfnetlink_queue: drop bogus WARN_ON
ethtool: netlink: do not return SQI value if link is down
ppp: reject claimed-as-LCP but actually malformed packets
selftests/bpf: Add timer lockup selftest
net: ethernet: mtk-star-emac: set mac_managed_pm when probing
e1000e: fix force smbus during suspend flow
tcp: avoid too many retransmit packets
bpf: Defer work in bpf_timer_cancel_and_free
bpf: Fail bpf_timer_cancel when callback is being cancelled
bpf: fix order of args in call to bpf_map_kvcalloc
net: ethernet: lantiq_etop: fix double free in detach
i40e: Fix XDP program unloading while removing the driver
net: fix rc7's __skb_datagram_iter()
net: ks8851: Fix deadlock with the SPI chip variant
octeontx2-af: Fix incorrect value output on error path in rvu_check_rsrc_availability()
...
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Covert the Spreadtrum SDHCI controller bindings to DT schema.
Rename the file to match compatible. Drop assigned-* properties as
these should not be needed.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Link: https://lore.kernel.org/r/ZozY+tOkzK9yfjbo@standask-GA-A55M-S2HP
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Some userspace applications (OpenJDK for instance) uses the free MSBs
in pointers to insert additional information for their own logic and
need to get this information from somewhere. Currently they rely on
parsing /proc/cpuinfo "mmu=svxx" string to obtain the current value of
virtual address usable bits [1]. Since this reflect the raw supported
MMU mode, it might differ from the logical one used internally which is
why arch_get_mmap_end() is used. Exporting the highest mmapable address
through hwprobe will allow a more stable interface to be used. For that
purpose, add a new hwprobe key named
RISCV_HWPROBE_KEY_HIGHEST_VIRT_ADDRESS which will export the highest
userspace virtual address.
Link: https://github.com/openjdk/jdk/blob/master/src/hotspot/os_cpu/linux_riscv/vm_version_linux_riscv.cpp#L171 [1]
Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20240410144558.1104006-1-cleger@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Add compatible string for sama7d65. Like sama7g5, it currently binds to
"microchip,sam9x60-i2c" compatible string for this driver.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
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The xen_nopvspin boot parameter is deprecated since 2019. nopvspin
can be used instead.
Remove the xen_nopvspin boot parameter and replace the xen_pvspin
variable use cases with nopvspin.
This requires to move the nopvspin variable out of the .initdata
section, as it needs to be accessed for cpuhotplug, too.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Message-ID: <20240710110139.22300-1-jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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IoT interface
Document the Sierra Wireless mangOH Green SPI IoT interface as a trivial
device.
This fixes the following check:
qcom-mdm9615-wp8548-mangoh-green.dtb: /soc/gsbi@16200000/spi@16280000/spi@0: failed to match any schema with compatible: ['swir,mangoh-iotport-spi']
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240710-topic-mdm9615-mangoh-iotport-spi-bindings-v1-1-3efe20cfea8a@linaro.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Today Xen multicall debugging needs to be enabled via modifying a
define in a source file for getting debug data of multicall errors
encountered by users.
Switch multicall debugging to depend on a boot parameter "xen_mc_debug"
instead, enabling affected users to boot with the new parameter set in
order to get better diagnostics.
With debugging enabled print the following information in case at least
one of the batched calls failed:
- all calls of the batch with operation, result and caller
- all parameters of each call
- all parameters stored in the multicall data for each call
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Message-ID: <20240710092749.13595-1-jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Fix:
Documentation/ABI/testing/configfs-tsm:97: ERROR: Unexpected indentation
when building htmldocs with sphinx. I can't say I'm loving those rigid
sphinx rules but whatever, make it shut up.
Fixes: 627dc671518b ("x86/sev: Extend the config-fs attestation support for an SVSM")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20240701184557.4735ca3d@canb.auug.org.au
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the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This commit removes the "pmf.rst" document, which was associated with
the PMF driver that enabled system state updates based on TA output
actions.
The driver now uses existing input events (KEY_SCREENLOCK, KEY_SLEEP,
and KEY_SUSPEND) instead of defining new udev rules in the
"/etc/udev/rules.d/" directory. Consequently, the pmf.rst document is no
longer necessary. Therefore, the pmf.rst documentation is being removed.
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20240711052047.1531957-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Add compatible string for sama7d65. Like sama7g5, it currently binds to
"atmel,sama5d2-pwm" compatibility string for this driver, so add an
"enum" to reflect that.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240710163651.343751-1-nicolas.ferre@microchip.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
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Pull in my fixes branch to resolve an mpi3mr merge conflict reported
by sfr.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Convert enetc device binding file to yaml. Split to 3 yaml files,
'fsl,enetc.yaml', 'fsl,enetc-mdio.yaml', 'fsl,enetc-ierb.yaml'.
Additional Changes:
- Add pci<vendor id>,<production id> in compatible string.
- Ref to common ethernet-controller.yaml and mdio.yaml.
- Add Wei fang, Vladimir and Claudiu as maintainer.
- Update ENETC description.
- Remove fixed-link part.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240709214841.570154-1-Frank.Li@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The RTL8211F PHY does support LED configuration, document support
for LEDs in the binding document.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240708211649.165793-1-marex@denx.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The CXL driver provides a debugfs interface offering users the
ability to inject and clear poison to a memdev. Once a user has
injected up to the devices limit further injection requests fail
with ENXIO until a clear poison is issued.
Users may not have device specs in hand or may want to intentionally
hit the limit and then clear. Replace the usual ENXIO return status
with EBUSY so users can recognize this failure.
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Xingtao Yao <yaoxt.fnst@fujitsu.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://patch.msgid.link/825bd4c67fb55a4373c4182d999ad49d4e6b4fe7.1720316188.git.alison.schofield@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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Merge series from Rayyan Ansari <rayyan.ansari@linaro.org>:
These patches convert the remaining plain text bindings for Qualcomm
sound drivers to dt schema, so device trees can be validated against
them.
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Document bindings for the T-Head TH1520 AP sub-system clock controller.
Link: https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf
Co-developed-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Drew Fustini <dfustini@tenstorrent.com>
Link: https://lore.kernel.org/r/20240623-th1520-clk-v2-1-ad8d6432d9fb@tenstorrent.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Readers of DAMON subsystem documents index would want to further learn how
they can use DAMON from the user-space. Add the link to the admin guide.
Link: https://lkml.kernel.org/r/20240701192706.51415-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON subsystem documents index page provides a short intro of DAMON core
concepts. Add links to sections of the design document to let users
easily browse to the details.
Link: https://lkml.kernel.org/r/20240701192706.51415-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Readers of the design document would wonder how they can configure and use
specific DAMON features. Add links to sections of DAMON sysfs interface
usage document that provides the answers for easier browsing.
Link: https://lkml.kernel.org/r/20240701192706.51415-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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