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Currently Rockchip calls iommu_device_register() before it's finished
setting up the hardware and driver state, and as such it now gets
unhappy in various ways when registration starts working the way it was
always intended to, and probing client devices straight away. Reorder
the operations to ensure that what we're registering is a prepared and
functional IOMMU instance.
Fixes: bcb81ac6ae3c ("iommu: Get DT/ACPI parsing into the proper probe path")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Quentin Schulz <quentin.schulz@cherry.de>
Tested-by: Dang Huynh <danct12@riseup.net>
Reviewed-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Tested-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/e69532f00bf49d98322b96788edb7e2e305e4006.1741886382.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Now that DT-based probing is finally happening in the right order again,
it reveals an issue in Rockchip's of_xlate, which can now be called
during registration, but is using the global dma_dev which is only
assigned later. However, this makes little sense when we're already
looking up the correct IOMMU device, who should logically be the owner
of the devm allocation anyway.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Fixes: bcb81ac6ae3c ("iommu: Get DT/ACPI parsing into the proper probe path")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Quentin Schulz <quentin.schulz@cherry.de>
Tested-by: Dang Huynh <danct12@riseup.net>
Reviewed-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Tested-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/771e91cf16b3048e93f657153b76905665878fa2.1741886382.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Jacob Keller says:
====================
net: ptp: fix egregious supported flag checks
In preparation for adding .supported_extts_flags and
.supported_perout_flags to the ptp_clock_info structure, fix a couple of
places where drivers get existing flag gets grossly incorrect.
The igb driver claims 82580 supports strictly validating PTP_RISING_EDGE
and PTP_FALLING_EDGE, but doesn't actually check the flags. Fix the driver
to require that the request match both edges, as this is implied by the
datasheet description.
The renesas driver also claims to support strict flag checking, but does
not actually check the flags either. I do not have the data sheet for this
device, so I do not know what edge it timestamps. For simplicity, just
reject all requests with PTP_STRICT_FLAGS. This essentially prevents the
PTP_EXTTS_REQUEST2 ioctl from working. Updating to correctly validate the
flags will require someone who has the hardware to confirm the behavior.
The lan743x driver supports (and strictly validates) that the request is
either PTP_RISING_EDGE or PTP_FALLING_EDGE but not both. However, it does
not check the flags are one of the known valid flags. Thus, requests for
PTP_EXT_OFF (and any future flag) will be accepted and misinterpreted. Add
the appropriate check to reject unsupported PTP_EXT_OFF requests and future
proof against new flags.
The broadcom PHY driver checks that PTP_PEROUT_PHASE is not set. This
appears to be an attempt at rejecting unsupported flags. It is not robust
against flag additions such as the PTP_PEROUT_ONE_SHOT, or anything added
in the future. Fix this by instead checking against the negation of the
supported PTP_PEROUT_DUTY_CYCLE instead.
The ptp_ocp driver supports PTP_PEROUT_PHASE and PTP_PEROUT_DUTY_CYCLE, but
does not check unsupported flags. Add the appropriate check to ensure
PTP_PEROUT_ONE_SHOT and any future flags are rejected as unsupported.
These are changes compile-tested, but I do not have hardware to validate the
behavior.
There are a number of other drivers which enable periodic output or
external timestamp requests, but which do not check flags at all. We could
go through each of these drivers one-by-one and meticulously add a flag
check. Instead, these drivers will be covered only by the upcoming
.supported_extts_flags and .supported_perout_flags checks in a net-next
series.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
====================
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-0-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The ptp_ocp_signal_from_perout() function supports PTP_PEROUT_DUTY_CYCLE
and PTP_PEROUT_PHASE. It does not support PTP_PEROUT_ONE_SHOT, but does not
reject a request with such an unsupported flag.
Add the appropriate check to ensure that unsupported requests are rejected
both for PTP_PEROUT_ONE_SHOT as well as any future flags.
Fixes: 1aa66a3a135a ("ptp: ocp: Program the signal generators via PTP_CLK_REQ_PEROUT")
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-5-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In bcm_ptp_perout_locked, the driver rejects requests which have
PTP_PEROUT_PHASE set. This appears to be an attempt to reject any
unsupported flags. Unfortunately, this only checks one flag, but does not
protect against PTP_PEROUT_ONE_SHOT, or any future flags which may be
added.
Fix the check to ensure that no flag other than the supported
PTP_PEROUT_DUTY_CYCLE is set.
Fixes: 7bfe91efd525 ("net: phy: Add support for 1PPS out and external timestamps")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-4-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The lan743x_ptp_io_event_cap_en() function checks that the given request
sets only one of PTP_RISING_EDGE or PTP_FALLING_EDGE, but not both.
However, this driver does not check whether other flags (such as
PTP_EXT_OFF) are set, nor whether any future unrecognized flags are set.
Fix this by adding the appropriate check to the lan743x_ptp_io_extts()
function.
Fixes: 60942c397af6 ("net: lan743x: Add support for PTP-IO Event Input External Timestamp (extts)")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-3-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The ravb_ptp_extts() function checks the flags coming from the
PTP_EXTTS_REQUEST ioctl, to ensure that future flags are not accepted on
accident.
This was updated to 'honor' the PTP_STRICT_FLAGS in commit 6138e687c7b6
("ptp: Introduce strict checking of external time stamp options.").
However, the driver does not *actually* validate the flags.
I originally fixed this driver to reject future flags in commit
592025a03b34 ("renesas: reject unsupported external timestamp flags"). It
is still unclear whether this hardware timestamps the rising, falling, or
both edges of the input signal.
Accepting requests with PTP_STRICT_FLAGS is a bug, as this could lead to
users mistakenly assuming a request with PTP_RISING_EDGE actually
timestamps the rising edge only.
Reject requests with PTP_STRICT_FLAGS (and hence all PTP_EXTTS_REQUEST2
requests) until someone with access to the datasheet or hardware knowledge
can confirm the timestamping behavior and update this driver.
Fixes: 6138e687c7b6 ("ptp: Introduce strict checking of external time stamp options.")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-2-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The igb_ptp_feature_enable_82580 function correctly checks that unknown
flags are not passed to the function. However, it does not actually check
PTP_RISING_EDGE or PTP_FALLING_EDGE when configuring the external timestamp
function.
The data sheet for the 82580 product says:
Upon a change in the input level of one of the SDP pins that was
configured to detect Time stamp events using the TSSDP register, a time
stamp of the system time is captured into one of the two auxiliary time
stamp registers (AUXSTMPL/H0 or AUXSTMPL/H1).
For example to define timestamping of events in the AUXSTMPL0 and
AUXSTMPH0 registers, Software should:
1. Set the TSSDP.AUX0_SDP_SEL field to select the SDP pin that detects
the level change and set the TSSDP.AUX0_TS_SDP_EN bit to 1.
2. Set the TSAUXC.EN_TS0 bit to 1 to enable timestamping
The same paragraph is in the i350 and i354 data sheets.
The wording implies that the time stamps are captured at any level change.
There does not appear to be any way to only timestamp one edge of the
signal.
Reject requests which do not set both PTP_RISING_EDGE and PTP_FALLING_EDGE
when operating under PTP_STRICT_FLAGS mode via PTP_EXTTS_REQUEST2.
Fixes: 38970eac41db ("igb: support EXTTS on 82580/i354/i350")
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-1-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Gerhard Engleder says:
====================
Support loopback mode speed selection
Previously to commit 6ff3cddc365b ("net: phylib: do not disable autoneg
for fixed speeds >= 1G") it was possible to select the speed of the
loopback mode by configuring a fixed speed before enabling the loopback
mode. Now autoneg is always enabled for >= 1G and a fixed speed of >= 1G
requires successful autoneg. Thus, the speed of the loopback mode depends
on the link partner for >= 1G. There is no technical reason to depend on
the link partner for loopback mode. With this behavior the loopback mode
is less useful for testing.
Allow PHYs to support optional speed selection for the loopback mode.
This support is implemented for the generic loopback support and for PHY
drivers, which obviously support speed selection for loopback mode.
Additionally, loopback support according to the data sheet is added to
the KSZ9031 PHY.
Extend phy_loopback() to signal link up and down if speed changes,
because a new link speed requires link up signalling.
Use this loopback speed selection in the tsnep driver to select the
loopback mode speed depending the previously active speed. User space
tests with 100 Mbps and 1 Gbps loopback are possible again.
====================
Link: https://patch.msgid.link/20250312203010.47429-1-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Use 100 Mbps only if the PHY is configured to this speed. Otherwise use
always the maximum speed of 1000 Mbps.
Also remove explicit setting of carrier on and link mode after loopback.
This is not needed anymore, because phy_loopback() with selected speed
signals the link and the speed to the MAC.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250312203010.47429-6-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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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>
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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>
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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>
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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>
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The comments for EXT_SVADE are a bit confusing. Clarify it.
Signed-off-by: Chao Du <duchao@eswincomputing.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20250221025929.31678-1-duchao@eswincomputing.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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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>
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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>
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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: 94033cd8e73b ("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>
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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>
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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>
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* 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>
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* 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>
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* 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>
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* 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>
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https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/drivers
Amlogic drivers changes for v6.15:
- GPIO interrupt controller support for Amlogic A4 and A5 SoCs
* tag 'amlogic-drivers-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
irqchip: Add support for Amlogic A4 and A5 SoCs
dt-bindings: interrupt-controller: Add support for Amlogic A4 and A5 SoCs
Link: https://lore.kernel.org/r/eeaa8d3b-4fc3-4dae-92b8-0fc590e1a070@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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* 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>
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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>
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* 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>
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soc/drivers
Reset controller updates for v6.15
* Add missing microchip,sam9x7-rstc compatible to device tree binding
documentation.
* Add SCU reset driver for i.MX8QXP and i.MX8QM.
* tag 'reset-for-v6.15' of git://git.pengutronix.de/pza/linux:
reset: imx: fix incorrect module device table
reset: imx: Add SCU reset driver for i.MX8QXP and i.MX8QM
dt-bindings: firmware: imx: add property reset-controller
dt-bindings: reset: atmel,at91sam9260-reset: add sam9x7
Link: https://lore.kernel.org/r/20250314164406.744117-1-p.zabel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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* 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>
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* 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>
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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>
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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>
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers
Samsung mach/soc changes for v6.15
1. S3C: Drop linux/fb.h header.
2. Exynos ChipID: Check if memory allocation succeeded.
* tag 'samsung-soc-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
soc: samsung: exynos-chipid: Add NULL pointer check in exynos_chipid_probe()
ARM: s3c: Do not include <linux/fb.h>
Link: https://lore.kernel.org/r/20250309185601.10616-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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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>
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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>
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https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
soc/tegra: Changes for v6.15-rc1
A simple cleanup patch to use str_yes_no() instead of an open-coded
version.
* tag 'tegra-for-6.15-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Use str_enable_disable-like helpers
Link: https://lore.kernel.org/r/20250307162332.3451523-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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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>
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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>
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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>
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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>
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https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/defconfig
Enabling of the HDMI-receiver driver and new UFS storage driver.
* tag 'v6.15-rockchip-defconfig64-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: defconfig: Enable Synopsys HDMI receiver
arm64: defconfig: Enable Rockchip UFS host driver
Link: https://lore.kernel.org/r/3415370.aeNJFYEL58@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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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
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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
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documentation
Since it's enabled unconditionally now, remove all references to it.
(Left out languages I cannot read.)
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/20250317104257.3496611-5-mingo@kernel.org
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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
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With CONFIG_SCHED_DEBUG becoming unconditional, remove the
extra 'const_debug' indirection towards __read_mostly.
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/20250317104257.3496611-3-mingo@kernel.org
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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
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https://github.com/hisilicon/linux-hisi into soc/dt
ARM64: DT: HiSilicon ARM64 DT updates for v6.15
- Add property to the ETM nodes for fixing CPU idle states
* tag 'hisi-arm64-dt-for-6.15' of https://github.com/hisilicon/linux-hisi:
arm64: dts: hi3660: Add property for fixing CPUIdle
Link: https://lore.kernel.org/r/67D968A9.7080504@hisilicon.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/dt
RISC-V Devicetrees for v6.15
Starfive:
All changes for jh7110-based boards including the removal of a dac
that does not exist and the addition of usb3 support on the star64 board
and pcie on the framework mainboard.
Microchip:
Update pcie reg properties to fix a mistake originally describing them.
Here rather than in fixes, since the driver maintains support for the
old format.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
* tag 'riscv-dt-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
riscv: dts: starfive: jh7110-pine64-star64: enable USB 3.0 port
riscv: dts: starfive: jh7110: pciephy0 USB 3.0 configuration registers
riscv: dts: starfive: fml13v01: enable pcie1
riscv: dts: starfive: remove non-existent dac from jh7110
riscv: dts: starfive: Unify regulator naming scheme
riscv: dts: microchip: update pcie reg properties to new format
Link: https://lore.kernel.org/r/20250318-favorite-presuming-bf2fcf55bf6a@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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