Use genphy_loopback() to disable loopback like ksz9031_set_loopback().
This way disable loopback is implemented only once within
genphy_loopback() and the set_loopback() implementations look similar.
Also fix comment about msleep() in the out-of loopback case which is not
executed in the out-of loopback case.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250312203010.47429-5-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The KSZ9031 PHYs requires full duplex for loopback mode. Add PHY
specific set_loopback() to ensure this.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250312203010.47429-4-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
phy_loopback() leaves it to the PHY driver to select the speed of the
loopback mode. Thus, the speed of the loopback mode depends on the PHY
driver in use.
Add support for speed selection to phy_loopback() to enable loopback
with defined speeds. Ensure that link up is signaled if speed changes
as speed is not allowed to change during link up. Link down and up is
necessary for a new speed.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Link: https://patch.msgid.link/20250312203010.47429-3-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
PHY drivers support loopback mode, but it is not possible to select the
speed of the loopback mode. The speed is chosen by the set_loopback()
operation of the PHY driver. Same is valid for genphy_loopback().
There are PHYs that support loopback with different speeds. Extend
set_loopback() to make loopback speed selection possible.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250312203010.47429-2-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Andrew Jones <ajones@ventanamicro.com> says:
The first six patches of this series are fixes and cleanups of the
unaligned access speed probing code. The next patch introduces a
kernel command line option that allows the probing to be skipped.
This command line option is a different approach than Jesse's [1].
[1] takes a cpu-list for a particular speed, supporting heterogeneous
platforms. With this approach, the kernel command line should only
be used for homogeneous platforms. [1] also only allowed 'fast' and
'slow' to be selected. This parameter also supports 'unsupported',
which could be useful for testing code paths gated on that. The final
patch adds the documentation.
[1] https://lore.kernel.org/linux-riscv/20240805173816.3722002-1-jesse@rivosinc.com/
* patches from https://lore.kernel.org/r/20250304120014.143628-10-ajones@ventanamicro.com:
Documentation/kernel-parameters: Add riscv unaligned speed parameters
riscv: Add parameter for skipping access speed tests
riscv: Fix set up of vector cpu hotplug callback
riscv: Fix set up of cpu hotplug callbacks
riscv: Change check_unaligned_access_speed_all_cpus to void
riscv: Fix check_unaligned_access_all_cpus
riscv: Fix riscv_online_cpu_vec
riscv: Annotate unaligned access init functions
Link: https://lore.kernel.org/r/20250304120014.143628-10-ajones@ventanamicro.com
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
When using EXTRA_CFLAGS, for example "EXTRA_CFLAGS=-DREFCNT_CHECKING=1",
this construct stops setting -g which you'd expect would not be affected
by adding extra flags. Additionally, EXTRA_CFLAGS should be the last
thing to be appended so that it can be used to undo any defaults. And no
condition is required, just += appends to any existing CFLAGS and also
appends or doesn't append EXTRA_CFLAGS if they are or aren't set.
It's not clear why DEBUG=1 is required for -g in Perf when in libperf
it's always on, but I don't think we need to change that behavior now
because someone may be depending on it.
Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250319114009.417865-1-james.clark@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
On linux-next
commit 72c6f57a41 ("perf pmu: Dynamically allocate tool PMU")
allocated PMU named "tool" dynamicly. However that allocation
can fail and a NULL pointer is returned. That case is currently
not handled and would result in an invalid address reference.
Add a check for NULL pointer.
Fixes: 72c6f57a41 ("perf pmu: Dynamically allocate tool PMU")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250319122820.2898333-1-tmricht@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
zfree() requires an address otherwise it frees what's in name, rather
than name itself. Pass the address of name to fix it.
This was the only incorrect occurrence in Perf found using a search.
Fixes: 8db5cabcf1 ("perf stat: Fork and launch 'perf record' when 'perf stat' needs to get retire latency value for a metric.")
Signed-off-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250319101614.190922-1-james.clark@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Kernel modules for which we cannot find a file on-disk will have a
dso->long_name that looks like "[module_name]". Prior to the commit
listed in the fixes, the dso->kernel field would be zero (for user
space), so dso__is_kallsyms() would return false. After the commit,
kernel module DSOs are correctly labeled, but the result is that
dso__is_kallsyms() erroneously returns true for those modules without a
filesystem path.
Later, build_id_cache__add() consults this value of is_kallsyms, and
when true, it copies /proc/kallsyms into the cache. Users with many
kernel modules without a filesystem path (e.g. ksplice or possibly
kernel live patch modules) have reported excessive disk space usage in
the build ID cache directory due to this behavior.
To reproduce the issue, it's enough to build a trivial out-of-tree hello
world kernel module, load it using insmod, and then use:
perf record -ag -- sleep 1
In the build ID directory, there will be a directory for your module
name containing a kallsyms file.
Fix this up by changing dso__is_kallsyms() to consult the
dso_binary_type enumeration, which is also symmetric to the above checks
for dso__is_vmlinux() and dso__is_kcore(). With this change, kallsyms is
not cached in the build-id cache for out-of-tree modules.
Fixes: 02213cec64 ("perf maps: Mark module DSOs with kernel type")
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Link: https://lore.kernel.org/r/20250318230012.2038790-1-stephen.s.brennan@oracle.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Bastien Curutchet says:
====================
selftests/bpf: Migrate test_xdp_vlan.sh into test_progs
Hi all,
This patch series continues the work to migrate the script tests into
prog_tests.
test_xdp_vlan.sh tests the ability of an XDP program to modify the VLAN
ids on the fly. This isn't currently covered by an other test in the
test_progs framework so I add a new file prog_tests/xdp_vlan.c that does
the exact same tests (same network topology, same BPF programs) and
remove the script.
====================
Link: https://patch.msgid.link/20250221-xdp_vlan-v1-0-7d29847169af@bootlin.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
test_xdp_vlan.sh isn't used by the BPF CI.
Migrate test_xdp_vlan.sh in prog_tests/xdp_vlan.c.
It uses the same BPF programs located in progs/test_xdp_vlan.c and the
same network topology.
Remove test_xdp_vlan*.sh and their Makefile entries.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250221-xdp_vlan-v1-2-7d29847169af@bootlin.com/
The __load() helper expects BPF sections to be names 'xdp' or 'tc'
Rename BPF sections so they can be loaded with the __load() helper in
upcoming patch.
Rename the BPF functions with their previous section's name.
Update the 'ip link' commands in the script to use the program name
instead of the section name to load the BPF program.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250221-xdp_vlan-v1-1-7d29847169af@bootlin.com
1. ARM Cirrus EP7211: Align GPIO node name to match what bindings
expect.
2. Loongson 2K1000: Drop incorrect spidev description, by pretending to
have there something else. This will have impact on the users of
DTS, because spidev will stop working, however no counter-proposals
of fixing this or even explaining this were proposed for half a year
after the patch was posted. Therefore drop incorrect hardware
description, hoping affected users will come if proper one, if needed.
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Merge tag 'dt-cleanup-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt into soc/dt
Minor improvements inDTS for v6.15
1. ARM Cirrus EP7211: Align GPIO node name to match what bindings
expect.
2. Loongson 2K1000: Drop incorrect spidev description, by pretending to
have there something else. This will have impact on the users of
DTS, because spidev will stop working, however no counter-proposals
of fixing this or even explaining this were proposed for half a year
after the patch was posted. Therefore drop incorrect hardware
description, hoping affected users will come if proper one, if needed.
* tag 'dt-cleanup-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
loongarch: dts: remove non-existent DAC from 2k1000-ref
ARM: dts: cirrus: ep7211: Align GPIO hog name with bindings
Link: https://lore.kernel.org/r/20250316144221.18240-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This contains a few patches that add some missing, display-related nodes
on Tegra114 and Tegra124, as well as a small fix in the display clock
used for DSI on Tegra114 and the addition of a light sensor found on the
ASUS TF101.
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Merge tag 'tegra-for-6.15-arm-dt' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt
ARM: tegra: Device tree changes for v6.15-rc1
This contains a few patches that add some missing, display-related nodes
on Tegra114 and Tegra124, as well as a small fix in the display clock
used for DSI on Tegra114 and the addition of a light sensor found on the
ASUS TF101.
* tag 'tegra-for-6.15-arm-dt' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
ARM: tegra: tf101: Add al3000a illuminance sensor node
ARM: tegra: Add DSI-A and DSI-B nodes on Tegra124
ARM: tegra: Add HDA node on Tegra114
ARM: tegra: Add ARM PMU node on Tegra114
ARM: tegra: Switch DSI-B clock parent to PLLD on Tegra114
Link: https://lore.kernel.org/r/20250307162332.3451523-4-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The kunitconfig file in a directory is used by kunit.py to enable all
necessary kernel configurations to run the tests in that subdirectory.
Add such a file for rust/.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://lore.kernel.org/r/20250208-rust-kunit-v1-2-94a026be6d72@weissschuh.net
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Usermode Linux uses "um" as primary architecture name and the underlying
physical architecture is provided in "SUBARCH".
Resolve the target architecture flags through that underlying
architecture.
This is the same pattern as used by scripts/Makefile.clang from which
the bindgen flags are derived.
[ David says:
(...) this is enough to get Rust-for-Linux working with gcc under
64-bit UML on my system.
- Miguel ]
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: David Gow <davidgow@googl.ecom>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Link: https://lore.kernel.org/r/20250208-rust-kunit-v1-1-94a026be6d72@weissschuh.net
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Exynos7870 SoC uses the ARM Mali T830 GPU, document its compatible
string with the appropriate fallback. The T830 compatible is already
defined in the panfrost driver, but was commented out as it was unused.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Link: https://lore.kernel.org/r/20250318-exynos7870-gpu-v2-1-58dc2094dc7f@disroot.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Since the i and pool->chunk_size variables are of type 'u32',
their product can wrap around and then be cast to 'u64'.
This can lead to two different XDP buffers pointing to the same
memory area.
Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.
Fixes: 94033cd8e7 ("xsk: Optimize for aligned case")
Cc: stable@vger.kernel.org
Signed-off-by: Ilia Gavrilov <Ilia.Gavrilov@infotecs.ru>
Link: https://patch.msgid.link/20250313085007.3116044-1-Ilia.Gavrilov@infotecs.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Introduce Devicetree binding for providing board-specific firmware-name
for the GENI serial engine block. Add SDM630/636 support in pd-mapper.
Clean up and fix error handling in the SSC block bus driver.
Add missing msm8916-acc compatible to resolve a number of Devicetree
validation errors.
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Merge tag 'qcom-drivers-for-6.15-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
More Qualcomm driver updates for v6.15
Introduce Devicetree binding for providing board-specific firmware-name
for the GENI serial engine block. Add SDM630/636 support in pd-mapper.
Clean up and fix error handling in the SSC block bus driver.
Add missing msm8916-acc compatible to resolve a number of Devicetree
validation errors.
* tag 'qcom-drivers-for-6.15-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
dt-bindings: power: qcom,kpss-acc-v2: add qcom,msm8916-acc compatible
bus: qcom-ssc-block-bus: Fix the error handling path of qcom_ssc_block_bus_probe()
bus: qcom-ssc-block-bus: Remove some duplicated iounmap() calls
soc: qcom: pd-mapper: Add support for SDM630/636
dt-bindings: qcom: geni-se: Add 'firmware-name' property for firmware loading
Link: https://lore.kernel.org/r/20250319142448.2279164-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Improve the client interface for the Qualcomm ICE driver to avoid
leaking references, including fixing the client drivers to call the new
function.
Adopt str_on_off() helper in AOSS driver and mark non-global servreg QMI
element info array in the PDR driver static.
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Merge tag 'qcom-drivers-for-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
Qualcomm driver updates for v6.15
Improve the client interface for the Qualcomm ICE driver to avoid
leaking references, including fixing the client drivers to call the new
function.
Adopt str_on_off() helper in AOSS driver and mark non-global servreg QMI
element info array in the PDR driver static.
* tag 'qcom-drivers-for-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
soc: qcom: Do not expose internal servreg_location_entry_ei array
soc: qcom: ice: make of_qcom_ice_get() static
scsi: ufs: qcom: fix dev reference leaked through of_qcom_ice_get
mmc: sdhci-msm: fix dev reference leaked through of_qcom_ice_get
soc: qcom: ice: introduce devm_of_qcom_ice_get
dt-bindings: soc: qcom: qcom,pmic-glink: Document SM8750 compatible
soc: qcom: Use str_enable_disable-like helpers
Link: https://lore.kernel.org/r/20250317210158.2025380-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* kvm-arm64/pmu-fixes:
: vPMU fixes for 6.15 courtesy of Akihiko Odaki
:
: Various fixes to KVM's vPMU implementation, notably ensuring
: userspace-directed changes to the PMCs are reflected in the backing perf
: events.
KVM: arm64: PMU: Reload when resetting
KVM: arm64: PMU: Reload when user modifies registers
KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs
KVM: arm64: PMU: Assume PMU presence in pmu-emul.c
KVM: arm64: PMU: Set raw values from user to PM{C,I}NTEN{SET,CLR}, PMOVS{SET,CLR}
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
* kvm-arm64/pkvm-6.15:
: pKVM updates for 6.15
:
: - SecPageTable stats for stage-2 table pages allocated by the protected
: hypervisor (Vincent Donnefort)
:
: - HCRX_EL2 trap + vCPU initialization fixes for pKVM (Fuad Tabba)
KVM: arm64: Create each pKVM hyp vcpu after its corresponding host vcpu
KVM: arm64: Factor out pKVM hyp vcpu creation to separate function
KVM: arm64: Initialize HCRX_EL2 traps in pKVM
KVM: arm64: Factor out setting HCRX_EL2 traps into separate function
KVM: arm64: Count pKVM stage-2 usage in secondary pagetable stats
KVM: arm64: Distinct pKVM teardown memcache for stage-2
KVM: arm64: Add flags to kvm_hyp_memcache
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
* kvm-arm64/writable-midr:
: Writable implementation ID registers, courtesy of Sebastian Ott
:
: Introduce a new capability that allows userspace to set the
: ID registers that identify a CPU implementation: MIDR_EL1, REVIDR_EL1,
: and AIDR_EL1. Also plug a hole in KVM's trap configuration where
: SMIDR_EL1 was readable at EL1, despite the fact that KVM does not
: support SME.
KVM: arm64: Fix documentation for KVM_CAP_ARM_WRITABLE_IMP_ID_REGS
KVM: arm64: Copy MIDR_EL1 into hyp VM when it is writable
KVM: arm64: Copy guest CTR_EL0 into hyp VM
KVM: selftests: arm64: Test writes to MIDR,REVIDR,AIDR
KVM: arm64: Allow userspace to change the implementation ID registers
KVM: arm64: Load VPIDR_EL2 with the VM's MIDR_EL1 value
KVM: arm64: Maintain per-VM copy of implementation ID regs
KVM: arm64: Set HCR_EL2.TID1 unconditionally
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
* kvm-arm64/pmuv3-asahi:
: Support PMUv3 for KVM guests on Apple silicon
:
: Take advantage of some IMPLEMENTATION DEFINED traps available on Apple
: parts to trap-and-emulate the PMUv3 registers on behalf of a KVM guest.
: Constrain the vPMU to a cycle counter and single event counter, as the
: Apple PMU has events that cannot be counted on every counter.
:
: There is a small new interface between the ARM PMU driver and KVM, where
: the PMU driver owns the PMUv3 -> hardware event mappings.
arm64: Enable IMP DEF PMUv3 traps on Apple M*
KVM: arm64: Provide 1 event counter on IMPDEF hardware
drivers/perf: apple_m1: Provide helper for mapping PMUv3 events
KVM: arm64: Remap PMUv3 events onto hardware
KVM: arm64: Advertise PMUv3 if IMPDEF traps are present
KVM: arm64: Compute synthetic sysreg ESR for Apple PMUv3 traps
KVM: arm64: Move PMUVer filtering into KVM code
KVM: arm64: Use guard() to cleanup usage of arm_pmus_lock
KVM: arm64: Drop kvm_arm_pmu_available static key
KVM: arm64: Use a cpucap to determine if system supports FEAT_PMUv3
KVM: arm64: Always support SW_INCR PMU event
KVM: arm64: Compute PMCEID from arm_pmu's event bitmaps
drivers/perf: apple_m1: Support host/guest event filtering
drivers/perf: apple_m1: Refactor event select/filter configuration
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
* kvm-arm64/pv-cpuid:
: Paravirtualized implementation ID, courtesy of Shameer Kolothum
:
: Big-little has historically been a pain in the ass to virtualize. The
: implementation ID (MIDR, REVIDR, AIDR) of a vCPU can change at the whim
: of vCPU scheduling. This can be particularly annoying when the guest
: needs to know the underlying implementation to mitigate errata.
:
: "Hyperscalers" face a similar scheduling problem, where VMs may freely
: migrate between hosts in a pool of heterogenous hardware. And yes, our
: server-class friends are equally riddled with errata too.
:
: In absence of an architected solution to this wart on the ecosystem,
: introduce support for paravirtualizing the implementation exposed
: to a VM, allowing the VMM to describe the pool of implementations that a
: VM may be exposed to due to scheduling/migration.
:
: Userspace is expected to intercept and handle these hypercalls using the
: SMCCC filter UAPI, should it choose to do so.
smccc: kvm_guest: Fix kernel builds for 32 bit arm
KVM: selftests: Add test for KVM_REG_ARM_VENDOR_HYP_BMAP_2
smccc/kvm_guest: Enable errata based on implementation CPUs
arm64: Make _midr_in_range_list() an exported function
KVM: arm64: Introduce KVM_REG_ARM_VENDOR_HYP_BMAP_2
KVM: arm64: Specify hypercall ABI for retrieving target implementations
arm64: Modify _midr_range() functions to read MIDR/REVIDR internally
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
1. Minor cleanup in Nvidia Tegra20 EMC.
2. Extend support for Mediatek MT8192 to match recommended by vendor and
improve VENC hardware behavior during stress testing.
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Merge tag 'memory-controller-drv-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers
Memory controller drivers for v6.15
1. Minor cleanup in Nvidia Tegra20 EMC.
2. Extend support for Mediatek MT8192 to match recommended by vendor and
improve VENC hardware behavior during stress testing.
* tag 'memory-controller-drv-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: mtk-smi: Add ostd setting for mt8192
memory: tegra20-emc: Drop redundant platform_get_irq() error printk
Link: https://lore.kernel.org/r/20250316143503.17620-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* kvm-arm64/nv-idregs:
: Changes to exposure of NV features, courtesy of Marc Zyngier
:
: Apply NV-specific feature restrictions at reset rather than at the point
: of KVM_RUN. This makes the true feature set visible to userspace, a
: necessary step towards save/restore support or NV VMs.
:
: Add an additional vCPU feature flag for selecting the E2H0 flavor of NV,
: such that the VHE-ness of the VM can be applied to the feature set.
KVM: arm64: selftests: Test that TGRAN*_2 fields are writable
KVM: arm64: Allow userspace to write ID_AA64MMFR0_EL1.TGRAN*_2
KVM: arm64: Advertise FEAT_ECV when possible
KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable
KVM: arm64: Allow userspace to limit NV support to nVHE
KVM: arm64: Move NV-specific capping to idreg sanitisation
KVM: arm64: Enforce NV limits on a per-idregs basis
KVM: arm64: Make ID_REG_LIMIT_FIELD_ENUM() more widely available
KVM: arm64: Consolidate idreg callbacks
KVM: arm64: Advertise NV2 in the boot messages
KVM: arm64: Mark HCR.EL2.{NV*,AT} RES0 when ID_AA64MMFR4_EL1.NV_frac is 0
KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero
KVM: arm64: Hide ID_AA64MMFR2_EL1.NV from guest and userspace
arm64: cpufeature: Handle NV_frac as a synonym of NV2
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
* kvm-arm64/nv-vgic:
: NV VGICv3 support, courtesy of Marc Zyngier
:
: Support for emulating the GIC hypervisor controls and managing shadow
: VGICv3 state for the L1 hypervisor. As part of it, bring in support for
: taking IRQs to the L1 and UAPI to manage the VGIC maintenance interrupt.
KVM: arm64: nv: Fail KVM init if asking for NV without GICv3
KVM: arm64: nv: Allow userland to set VGIC maintenance IRQ
KVM: arm64: nv: Fold GICv3 host trapping requirements into guest setup
KVM: arm64: nv: Propagate used_lrs between L1 and L0 contexts
KVM: arm64: nv: Request vPE doorbell upon nested ERET to L2
KVM: arm64: nv: Respect virtual HCR_EL2.TWx setting
KVM: arm64: nv: Add Maintenance Interrupt emulation
KVM: arm64: nv: Handle L2->L1 transition on interrupt injection
KVM: arm64: nv: Nested GICv3 emulation
KVM: arm64: nv: Sanitise ICH_HCR_EL2 accesses
KVM: arm64: nv: Plumb handling of GICv3 EL2 accesses
KVM: arm64: nv: Add ICH_*_EL2 registers to vpcu_sysreg
KVM: arm64: nv: Load timer before the GIC
arm64: sysreg: Add layout for ICH_MISR_EL2
arm64: sysreg: Add layout for ICH_VTR_EL2
arm64: sysreg: Add layout for ICH_HCR_EL2
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
* kvm-arm64/misc:
: Miscellaneous fixes/cleanups for KVM/arm64
:
: - Avoid GICv4 vLPI configuration when confronted with user error
:
: - Only attempt vLPI configuration when the target routing is an MSI
:
: - Document ordering requirements to avoid aforementioned user error
KVM: arm64: Tear down vGIC on failed vCPU creation
KVM: arm64: Document ordering requirements for irqbypass
KVM: arm64: vgic-v4: Fall back to software irqbypass if LPI not found
KVM: arm64: vgic-v4: Only WARN for HW IRQ mismatch when unmapping vLPI
KVM: arm64: vgic-v4: Only attempt vLPI mapping for actual MSIs
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
- ti-sci: Default set to ARCH_K3 for the ti sci driver in preperation for
the driver to be default set as module in defconfig.
- k3-socinfo: Explicitly build up regmap instead of depending on syscon
helper
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Merge tag 'ti-driver-soc-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/drivers
TI SoC driver updates for v6.15
- ti-sci: Default set to ARCH_K3 for the ti sci driver in preperation for
the driver to be default set as module in defconfig.
- k3-socinfo: Explicitly build up regmap instead of depending on syscon
helper
* tag 'ti-driver-soc-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
firmware: config: ti-sci: Default set to ARCH_K3 for the ti sci driver
soc: ti: k3-socinfo: Do not use syscon helper to build regmap
Link: https://lore.kernel.org/r/20250312113826.ka63nijuftgs6h52@mocker
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- A MAINTAINERS update from Ahmad Fatoum to get mxc drivers matched by
i.MX entry
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Merge tag 'imx-drivers-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/drivers
i.MX drivers changes for 6.15:
- A MAINTAINERS update from Ahmad Fatoum to get mxc drivers matched by
i.MX entry
* tag 'imx-drivers-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
MAINTAINERS: match mxc in file names by IMX / MXC entry
Link: https://lore.kernel.org/r/20250312074005.663165-1-shawnguo2@yeah.net
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Add support for Exynos USI v1 serial engines. Drivers already
supported newer IP blocks - USI v2 - present in Exynos850 and newer.
A bit older ARM64 designs, like Exynos8895 use older USI v1 block.
2. Add Exynos ACPM (Alive Clock and Power Manager) protocol driver
for Google GS101 SoC. ACPM protocol allows communication between the
power management firmware and other embedded processors.
3. Exynos2200: Add PMU, ChipID and SYSREG Devicetree bindings.
4. Exynos7870: Add PMU and ChipID Devicetree bindings.
5. Various cleanups.
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Merge tag 'samsung-drivers-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers
Samsung SoC drivers for v6.15
1. Add support for Exynos USI v1 serial engines. Drivers already
supported newer IP blocks - USI v2 - present in Exynos850 and newer.
A bit older ARM64 designs, like Exynos8895 use older USI v1 block.
2. Add Exynos ACPM (Alive Clock and Power Manager) protocol driver
for Google GS101 SoC. ACPM protocol allows communication between the
power management firmware and other embedded processors.
3. Exynos2200: Add PMU, ChipID and SYSREG Devicetree bindings.
4. Exynos7870: Add PMU and ChipID Devicetree bindings.
5. Various cleanups.
* tag 'samsung-drivers-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
dt-bindings: soc: samsung: exynos-usi: Drop unnecessary status from example
soc: samsung: include linux/array_size.h where needed
soc: samsung: exynos-chipid: add support for exynos7870
dt-bindings: soc: samsung: exynos-pmu: add exynos7870-pmu compatible
dt-bindings: hwinfo: samsung,exynos-chipid: add exynos7870-chipid compatible
soc: samsung: exynos-chipid: add exynos2200 SoC support
dt-bindings: hwinfo: samsung,exynos-chipid: add exynos2200 compatible
dt-bindings: soc: samsung: exynos-pmu: add exynos2200 compatible
dt-bindings: soc: samsung: exynos-sysreg: add sysreg compatibles for exynos2200
firmware: Exynos ACPM: Fix spelling mistake "Faile" -> "Failed"
MAINTAINERS: add entry for the Samsung Exynos ACPM mailbox protocol
firmware: add Exynos ACPM protocol driver
dt-bindings: firmware: add google,gs101-acpm-ipc
soc: samsung: usi: implement support for USIv1 and exynos8895
soc: samsung: usi: add a routine for unconfiguring the ip
dt-bindings: soc: samsung: usi: add USIv1 and samsung,exynos8895-usi
soc: samsung: Use syscon_regmap_lookup_by_phandle_args
Link: https://lore.kernel.org/r/20250309185601.10616-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Not much to this except for a simple typofix.
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Merge tag 'tegra-for-6.15-firmware' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
firmware: tegra: Changes for v6.15-rc1
Not much to this except for a simple typofix.
* tag 'tegra-for-6.15-firmware' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: bpmp: Fix typo in bpmp-abi.h
Link: https://lore.kernel.org/r/20250307162332.3451523-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This update includes:
- SoC driver support for Microchip SAMA7D65
- power management support for Microchip SAMA7D65
- power management fixes
- documentation fixes
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Merge tag 'at91-soc-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into soc/arm
Microchip AT91 SoC updates for v6.15
This update includes:
- SoC driver support for Microchip SAMA7D65
- power management support for Microchip SAMA7D65
- power management fixes
- documentation fixes
* tag 'at91-soc-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: at91: pm: Enable ULP0/ULP1 for SAMA7D65
ARM: at91: pm: Add Backup mode for SAMA7D65
ARM: at91: pm: add DT compatible support for sama7d65
ARM: at91: pm: fix at91_suspend_finish for ZQ calibration
dt-bindings: ARM: at91: add Calao USB boards
dt-bindings: ARM: at91: make separate entry for Olimex board
ARM: at91: Add Support in SoC driver for SAMA7D65
dt-bindings: atmel-sysreg: Add SAMA7D65 Chip ID
Link: https://lore.kernel.org/r/20250312173755.975074-2-claudiu.beznea@tuxon.dev
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Mark imx53_suspend_sz as __maybe_unused to fix a possible build warning
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Merge tag 'imx-soc-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/arm
i.MX SoC changes for 6.15:
- Mark imx53_suspend_sz as __maybe_unused to fix a possible build warning
* tag 'imx-soc-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: mark imx53_suspend_sz as unused
Link: https://lore.kernel.org/r/20250312074005.663165-2-shawnguo2@yeah.net
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Explicitly enable the DRM_DISPLAY_CONNECTOR module, as this is used by a
variety of boards.
Enable retimer and redriver drivers used in the USB configuration of a
variety of Qualcomm X Elite-based devices. Enable the NSS clock
controller driver for IPQ9574, the new Iris video encoder/decoder driver
and it's clock controller, as well as the QCM2290 GPU clocck ontroller.
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Merge tag 'qcom-arm64-defconfig-for-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/defconfig
Qualcomm Arm64 defconfig updates for v6.15
Explicitly enable the DRM_DISPLAY_CONNECTOR module, as this is used by a
variety of boards.
Enable retimer and redriver drivers used in the USB configuration of a
variety of Qualcomm X Elite-based devices. Enable the NSS clock
controller driver for IPQ9574, the new Iris video encoder/decoder driver
and it's clock controller, as well as the QCM2290 GPU clocck ontroller.
* tag 'qcom-arm64-defconfig-for-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: defconfig: Enable USB retimer and redriver
arm64: defconfig: Build NSS Clock Controller driver for IPQ9574
arm64: defconfig: enable Qualcomm IRIS & VIDEOCC_8550 as module
arm64: defconfig: enable DRM_DISPLAY_CONNECTOR as a module
arm64: defconfig: Enable Qualcomm QCM2290 GPU clock controller
Link: https://lore.kernel.org/r/20250319144354.2281720-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Enable Support for SPI NAND flashes on AM62Ax/J721s2 and other boards
- HSR protocol support for AM65/AM64 ICSSG based multi-port ethernet
- Greybus modules to support CC1352P7 chips on BeaglePlay
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Merge tag 'ti-k3-config-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/defconfig
TI K3 defconfig updates for v6.15
- Enable Support for SPI NAND flashes on AM62Ax/J721s2 and other boards
- HSR protocol support for AM65/AM64 ICSSG based multi-port ethernet
- Greybus modules to support CC1352P7 chips on BeaglePlay
* tag 'ti-k3-config-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
arm64: defconfig: Enable SPI NAND flashes
arm64: defconfig: Enable HSR protocol driver
arm64: defconfig: Enable gb_beagleplay
arm64: defconfig: Enable TISCI Interrupt Router and Aggregator
Link: https://lore.kernel.org/r/dec6ccc4-76df-47c3-8622-2c08035eff3e@ti.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
For more than a decade, CONFIG_SCHED_DEBUG=y has been enabled
in all the major Linux distributions:
/boot/config-6.11.0-19-generic:CONFIG_SCHED_DEBUG=y
The reason is that while originally CONFIG_SCHED_DEBUG started
out as a debugging feature, over the years (decades ...) it has
grown various bits of statistics, instrumentation and
control knobs that are useful for sysadmin and general software
development purposes as well.
But within the kernel we still pretend that there's a choice,
and sometimes code that is seemingly 'debug only' creates overhead
that should be optimized in reality.
So make it all official and make CONFIG_SCHED_DEBUG unconditional.
Now that all uses of CONFIG_SCHED_DEBUG are removed from
the code by previous patches, remove the Kconfig option as well.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Segall <bsegall@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250317104257.3496611-6-mingo@kernel.org
We leave most of the defconfigs alone (there's over 70 of them),
but let's remove CONFIG_SCHED_DEBUG from the scheduler self-test
Kconfig files.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Segall <bsegall@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/Z9szt3MpQmQ56TRd@gmail.com
All the big Linux distros enable CONFIG_SCHED_DEBUG, because
the various features it provides help not just with kernel
development, but with system administration and user-space
software development as well.
Reflect this reality and enable this functionality
unconditionally.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Segall <bsegall@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250317104257.3496611-4-mingo@kernel.org
The scheduler has this special SCHED_WARN() facility that
depends on CONFIG_SCHED_DEBUG.
Since CONFIG_SCHED_DEBUG is getting removed, convert
SCHED_WARN() to WARN_ON_ONCE().
Note that the warning output isn't 100% equivalent:
#define SCHED_WARN_ON(x) WARN_ONCE(x, #x)
Because SCHED_WARN_ON() would output the 'x' condition
as well, while WARN_ONCE() will only show a backtrace.
Hopefully these are rare enough to not really matter.
If it does, we should probably introduce a new WARN_ON()
variant that outputs the condition in stringified form,
or improve WARN_ON() itself.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Segall <bsegall@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250317104257.3496611-2-mingo@kernel.org
