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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a number of small char/misc/etc driver fixes for 7.2-rc5 that
resolve a bunch of different reported issues. Included in here are:
- rust_binder error message reporting fix
- stratix10-svc firmware driver fixes
- mei driver fix
- intel_th hardware tracing driver fix
- comedi driver fix
- uio_hv_generic driver fix
- ntsync selftest fix
- nsm misc driver fix
- some MAINTAINER file updates
All of these have been in linux-next for over a week with no reported
issues"
* tag 'char-misc-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
MAINTAINERS: Update wine-devel list address
rust_binder: only print failure if error has source
intel_th: fix MSC output device reference leak
misc: nsm: pin the module while the device is open
mei: bus: access mei_device under device_lock on cleanup
misc: nsm: only unlock nsm_dev on post-lock error paths
selftests: ntsync: correct CONFIG_NTSYNC name
comedi: comedi_parport: deal with premature interrupt
uio_hv_generic: Bind to FCopy device by default
MAINTAINERS: Add Greg Kroah-Hartman to GPIB
firmware: stratix10-svc: fix teardown order in remove to prevent race
firmware: stratix10-svc: handle NO_RESPONSE in async poll
firmware: stratix10-svc: fix FCS SMC call kernel-doc
firmware: stratix10-svc: fix memory leaks and list corruption bugs
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"There are only three devicetree fixes this time: one critical memory
corruption fix for Renesas and three minor corrections for Tegra.
The MAINTAINERS file is updated for a new maintainer of the CIX
platform and two address changes.
The rest is all driver fixes, mostly firmware:
- multiple runtime issues in ARM SCMI and FF-A firmware code, dealing
with error handling for corner cases in firmware.
- multiple fixes for reset drivers, dealing with individual platform
specific mistakes and more error handling
- minor build and runtime fixes for the Tegra SoC drivers"
* tag 'soc-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: dts: renesas: ironhide: Describe inline ECC carveouts
MAINTAINERS: Update maintainer and git tree for CIX SoC
ARM: Don't let ARMv5 platforms select USE_OF
MAINTAINERS: Update SpacemiT SoC git tree repository
firmware: arm_scmi: Rate-limit queue-full warnings in IRQ context
firmware: arm_scmi: Use 64-bit division for clock rate rounding
reset: imx7: Correct polarity of MIPI CSI resets on i.MX8MQ
reset: sunxi: fix memory region leak on ioremap failure
dt-bindings: reset: altr: add COMBOPHY_RESET for Agilex5
reset: spacemit: k3: fix USB2 ahb reset
firmware: arm_scmi: Grammar s/may needed/may be needed/
firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()
firmware: arm_ffa: Respect firmware advertised RX/TX buffer size limits
arm64: tegra: Fix CPU1 node unit-address on Tegra264
arm64: tegra: Fix CPU compatible string to cortex-a78ae on Tegra234
MAINTAINERS: .mailmap: update Jens Wiklander's email address
soc/tegra: fuse: Fix spurious straps warning on SMCCC platforms
soc/tegra: pmc: fix #ifdef block in header
drm/tegra: Fix a strange error handling path
arm64: tegra: Remove fallback compatible for GPCDMA
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into char-misc-linus
Dinh writes:
firmware: stratix10-svc: fixes for v7.2
- Fix a memory leak by explicitly using kfree() to match the list-managed lifetime
- Fix FCS SMC call documentation
- Add proper handling of a no response from the SDM
- Fix teardown order of service driver
* tag 'svc_fixes_for_v7.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
firmware: stratix10-svc: fix teardown order in remove to prevent race
firmware: stratix10-svc: handle NO_RESPONSE in async poll
firmware: stratix10-svc: fix FCS SMC call kernel-doc
firmware: stratix10-svc: fix memory leaks and list corruption bugs
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https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes
Arm SCMI/FF-A fixes for v7.2
Fix two runtime issues in the SCMI framework. Use full 64-bit division
when rounding range-based clock rates, avoiding divisor truncation and
a possible divide-by-zero on 32-bit systems. Rate-limit notification
queue-full warnings emitted from interrupt context to prevent printk
floods and prolonged system stalls during notification bursts. Also
correct a grammar error in the ARM_SCMI_POWER_CONTROL Kconfig help
text.
Fix the FF-A driver RX/TX buffer sizing logic to respect the maximum
buffer size advertised by firmware, while retaining compatibility with
older implementations that may reject PAGE_SIZE-rounded buffers.
Also fix a NULL pointer dereference in ffa_partition_info_get() by
rejecting NULL UUID strings before passing them to uuid_parse().
* tag 'scmi-ffa-fixes-7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Rate-limit queue-full warnings in IRQ context
firmware: arm_scmi: Use 64-bit division for clock rate rounding
firmware: arm_scmi: Grammar s/may needed/may be needed/
firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()
firmware: arm_ffa: Respect firmware advertised RX/TX buffer size limits
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 7.2, take #2
- Move locking for kvm_io_bus_get_dev() into the caller, ensuring
race-free checks that the returned object is of the correct type
- Fix initialisation of the page-table walk level when relaxing
permissions
- Correctly update the XN attribute when relaxing permissions
- Fix the sign extension of loads from emulated MMIO regions
- Assorted collection of fixes for pKVM's FFA proxy, together with a
couple of FFA driver adjustments
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In stratix10_svc_drv_remove(), stratix10_svc_async_exit() was called
before client devices were unregistered. This created a race window
where child devices could still be issuing service requests through
the async channels after the async infrastructure had already been
torn down.
Unregister client devices before tearing down the async threads and
channels to ensure all in-flight service calls drain before the
underlying infrastructure is destroyed.
Fixes: bcb9f4f07061 ("firmware: stratix10-svc: Add support for async communication")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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Define INTEL_SIP_SMC_STATUS_NO_RESPONSE (0x3) and handle it in
stratix10_svc_async_poll() the same way as INTEL_SIP_SMC_STATUS_BUSY,
returning -EAGAIN so callers can retry instead of treating the poll as
a hard failure.
When the Secure Device Manager has not yet produced a response for an
asynchronous transaction, ATF is expected to return
INTEL_SIP_SMC_STATUS_NO_RESPONSE. Without this handling, the service
layer maps the status to -EINVAL and async clients cannot distinguish
"not ready yet" from a real error.
Fixes: bcb9f4f07061 ("firmware: stratix10-svc: Add support for async communication")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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* for-next/scmi/fixes:
firmware: arm_scmi: Rate-limit queue-full warnings in IRQ context
firmware: arm_scmi: Use 64-bit division for clock rate rounding
firmware: arm_scmi: Grammar s/may needed/may be needed/
* for-next/ffa/fixes:
firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()
firmware: arm_ffa: Respect firmware advertised RX/TX buffer size limits
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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The scmi_notify() function is called from interrupt context to queue
received notification events onto a per-protocol kfifo. When the kfifo
is full, it logs a warning via dev_warn() for every dropped event.
Under conditions where the platform sends a burst of SCMI notifications
faster than the deferred worker can drain the queue, this results in a
flood of dev_warn() calls from IRQ context. Each call acquires the
console lock and may execute blocking console writes, causing the CPU
to be held in interrupt context for an extended period and leading to
observable system stalls.
Fix this by switching to dev_warn_ratelimited() to limit the frequency
of log messages when the notification queue is full. This reduces
console overhead in interrupt context and prevents CPU stalls caused by
excessive logging, while still preserving diagnostic visibility.
Fixes: bd31b249692e ("firmware: arm_scmi: Add notification dispatch and delivery")
Signed-off-by: Pushpendra Singh <pushpendra.singh@oss.qualcomm.com>
Link: https://patch.msgid.link/20260708072339.3021140-1-pushpendra.singh@oss.qualcomm.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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SCMI clock range descriptors report rates as 64-bit values. When handling
a range clock, scmi_clock_determine_rate() rounds the requested rate up to
the next supported step using the SCMI RATE_STEP value.
The current code uses div64_ul() for this calculation. Since div64_ul()
takes an unsigned long divisor, the 64-bit RATE_STEP value can be truncated
on 32-bit builds. In the worst case, a non-zero 64-bit step can be narrowed
to zero before the division.
Store RATE_STEP in a u64, reject a malformed zero step, and use
DIV64_U64_ROUND_UP() so the divisor is handled as a 64-bit value.
This does not change behavior for valid firmware reporting a non-zero step
that fits in unsigned long.
Tested on Xunlong Orange Pi 5 Plus / RK3588 with SCMI over SMC. SCMI
clocks probed successfully before and after the change. SCMI-backed CPU
clocks were exercised through cpufreq-dt by switching each CPU policy
between its lowest and highest available OPP.
Fixes: ecde921eb460 ("firmware: arm_scmi: Add clock determine_rate operation")
Signed-off-by: Steve Dunnagan <sdunnaga@redhat.com>
Link: https://patch.msgid.link/20260701195923.444270-1-sdunnaga@redhat.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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Use the descriptor's `ep_mem_offset` to calculate the start of the endpoint
memory access array and to comply with the FF-A spec instead of defaulting
to `sizeof(struct ffa_mem_region)`.
This requires moving `ffa_mem_region_additional_setup()` earlier in the setup
flow.
Also, add sanity checks to ensure the calculated descriptor offsets do not
exceed `max_fragsize`.
Fixes: 113580530ee7 ("firmware: arm_ffa: Update memory descriptor to support v1.1 format")
Reviewed-by: Sudeep Holla <sudeep.holla@kernel.org>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Link: https://patch.msgid.link/20260702103848.1647249-3-sebastianene@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Sashiko (locally) reports multiple out-of-bound issues in
ffa_setup_and_transmit:
1) Writing ep_mem_access->reserved can write out of bounds for FFA
versions < 1.2 as ffa_emad_size_get() returns 16 bytes in that case
while reserved has an offset of 24.
Instead of zeroing fields, memset the struct to zero first based on
the FFA version.
2) Make sure there is enough size to write constituents.
While at it, convert the only sizeof() in the driver that uses a
type instead of variable.
Reviewed-by: Sudeep Holla <sudeep.holla@kernel.org>
Fixes: 111a833dc5cb ("firmware: arm_ffa: Set reserved/MBZ fields to zero in the memory descriptors")
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Link: https://patch.msgid.link/20260702103848.1647249-2-sebastianene@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Fix a memory leak when gen_pool_alloc() fails by freeing pmem on the error
path. Switch pmem allocation from devm_kzalloc() to kzalloc() with
explicit kfree() in the free path to match its list-managed lifetime.
Remove the erroneous list_del(&svc_data_mem) which corrupted the list head
on failed lookups.
Fixes: 7ca5ce896524 ("firmware: add Intel Stratix10 service layer driver")
Cc: stable@vger.kernel.org # 5.0+
Signed-off-by: Tze Yee Ng <tze.yee.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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files)
Replace the #include of <linux/mod_devicetable.h> by the more specific
<linux/device-id/*.h> where applicable. For most cases the include
can be dropped completely, only a few drivers need one or two headers
added.
Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
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Fix grammar in the help text for the ARM_SCMI_POWER_CONTROL symbol.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/5180d04abfb8e3074a321e2eb73bacfdd61c30c5.1780499850.git.geert+renesas@glider.be
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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ffa_partition_info_get() passes uuid_str directly to uuid_parse()
without a NULL check. When a caller passes NULL, uuid_parse() ->
__uuid_parse() -> uuid_is_valid() dereferences the pointer, causing
a kernel panic:
| Unable to handle kernel NULL pointer dereference at virtual address
| 0000000000000040
| pc : uuid_parse+0x40/0xac
| lr : ffa_partition_info_get+0x1c/0x94 [arm_ffa]
Add a NULL guard before uuid_parse() so a NULL argument returns
-ENODEV instead of crashing. Callers are expected to always supply
a valid partition UUID, so NULL is not a supported input.
Fixes: d0c0bce83122 ("firmware: arm_ffa: Setup in-kernel users of FFA partitions")
Signed-off-by: Unnathi Chalicheemala <unnathi.chalicheemala@oss.qualcomm.com>
Link: https://patch.msgid.link/20260617-ffa_partition_nullptr_fix-v2-1-bc801b4ce34c@oss.qualcomm.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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FFA_FEATURES reports the minimum size and alignment boundary required
for RXTX_MAP. In FF-A v1.2 and later it can also report a maximum buffer
size, with zero meaning that no maximum is enforced.
The driver only used the minimum value and then rounded it up to PAGE_SIZE
before invoking RXTX_MAP after commit 83210251fd70 ("firmware: arm_ffa:
Use the correct buffer size during RXTX_MAP"). On systems where PAGE_SIZE
is larger than the advertised minimum, this can exceed a non-zero maximum
reported by firmware. Older implementations do not advertise a maximum and
may also reject the rounded-up size.
Decode the maximum size and clamp the page-aligned minimum to it when it
is present. If no maximum is advertised and RXTX_MAP rejects the rounded
size with INVALID_PARAMETERS, retry with the advertised minimum size.
Record drv_info->rxtx_bufsz only after RXTX_MAP succeeds so it reflects
the size registered with firmware.
While there, also update RXTX_MAP_MIN_BUFSZ() to use FIELD_GET() for
consistency.
Fixes: 83210251fd70 ("firmware: arm_ffa: Use the correct buffer size during RXTX_MAP")
Suggested-by: Sudeep Holla <sudeep.holla@kernel.org>
Signed-off-by: Seth Forshee <sforshee@nvidia.com>
Link: https://patch.msgid.link/20260602-b4-ffa-rxtx-map-fixes-v2-1-7cb06508da84@nvidia.com
(sudeep.holla: Minor rewording subject and commit message)
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull misc driver updates from Greg KH:
"Here is the big set of char, misc, iio, fpga, and other small driver
subsystems changes for 7.2-rc1.
Lots of little stuff in here, the majority being of course the IIO
driver updates, as a list they are:
- IIO driver updates and additions
- GPIB driver bugfixes and cleanups
- Android binder driver updates (rust and C version)
- counter driver updates
- MHI driver updates
- mei driver updates
- w1 driver updates
- interconnect driver updates
- Comedi driver fixes and updates
- some obsolete char drivers removed (applicom and dtlk)
- hwtracing driver updates
- other tiny driver updates
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits)
w1: ds2482: Use named initializers for arrays of i2c_device_data
firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version
firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy
coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer()
iio: adc: nxp-sar-adc: harden buffer ISR against per-channel read failure
iio: chemical: scd30: Replace manual locking with RAII locking
iio: light: tsl2591: remove unneeded tsl2591_compatible_als_persist_cycle()
iio: dac: ad5686: create bus ops struct
iio: dac: ad5686: cleanup doc header of local structs
iio: dac: ad5686: add control_sync() for single-channel devices
iio: dac: ad5686: add helpers to handle powerdown masks
iio: dac: ad5686: add of_match table to the spi driver
iio: dac: ad5686: drop enum id
iio: dac: ad5686: remove redundant register definition
iio: dac: ad5686: refactor include headers
iio: adc: ad4080: fix AD4880 chip ID
iio: light: veml3328: add support for new device
dt-bindings: iio: light: veml6030: add veml3328
fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen)
Fix a taskstats TGID aggregation bug where fields added in the TGID
query path were not preserved after thread exit, and adds a kselftest
covering the regression.
- "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko)
Improve lib/tests/string_helpers_kunit.c a little
- "lib/base64: decode fixes" (Josh Law)
Address minor issues in lib/base64.c
- "selftests/filelock: Make output more kselftestish" (Mark Brown)
Make the output from the ofdlocks test a bit easier for tooling to
work with. Also ignore the generated file
- "uaccess: unify inline vs outline copy_{from,to}_user() selection"
(Yury Norov)
Simplify the usercopy code by removing the selectability of inlining
copy_{from,to}_user().
- "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang)
Fix a number of possible issues in the ocfs2 xattr code
- "lib and lib/cmdline enhancements" (Dmitry Antipov)
Provide additional robustness checking in the cmdline handling code
and its in-kernel testing and selftests
- "cleanup the RAID6 P/Q library" (Christoph Hellwig)
Clean up the RAID6 P/Q library to match the recent updates to the
RAID 5 XOR library and other CRC/crypto libraries
- "ocfs2: harden inode validators against forged metadata" (Michael
Bommarito)
Add three structural checks to OCFS2 dinode validation so malformed
on-disk fields are rejected before ocfs2_populate_inode() copies them
into the in-core inode
- "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike
Rapoport)
Clean up the lib/raid code by using kmalloc() in more places
* tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits)
ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write
ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits
lib: interval_tree_test: validate benchmark parameters
ocfs2: avoid moving extents to occupied clusters
treewide: fix transposed "sign" typos and update spelling.txt
ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec
fat: reject BPB volumes whose data area starts beyond total sectors
selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems
lib/test_firmware: allocate the configured into_buf size
fs: efs: remove unneeded debug prints
checkpatch: cuppress warnings when Reported-by: is followed by Link:
MAINTAINERS: add Alexander as a kcov reviewer
mailmap: update Alexander Sverdlin's Email addresses
fs: fat: inode: replace sprintf() with scnprintf()
ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release()
ocfs2/dlm: require a ref for locking_state debugfs open
ocfs2: reject FITRIM ranges shorter than a cluster
ocfs2: validate fast symlink target during inode read
ocfs2: add journal NULL check in ocfs2_checkpoint_inode()
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git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull remoteproc updates from Bjorn Andersson:
- Add i.MX94 support to the i.MX remoteproc driver, covering the
Cortex-M7 and Cortex-M33 Sync cores. This also fixes programming of
non-zero System Manager CPU/LMM reset vectors.
- Move the remoteproc resource table definitions to a separate header,
so they can be used by clients that do not otherwise depend on
remoteproc. Switch the firmware resource handling over to the common
iterator.
- Update the Xilinx R5F remoteproc driver to check the remote core
state before attaching, drop a binding header dependency, and add
firmware-name based auto boot support.
- Add Qualcomm Hawi ADSP/CDSP bindings, together with Shikra RPM
bindings and CDSP, LPAICP, and MPSS PAS support. Fix a Qualcomm
minidump leak, clean up PAS and WCSS reset handling, and make the
user-visible Qualcomm naming consistent.
- Remove a duplicate STM32_RPROC Kconfig dependency and make i.MX
remoteproc instances use the device node name so multiple processors
can be distinguished in sysfs.
* tag 'rproc-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
remoteproc: qcom: pas: Drop start/stop completion from struct qcom_pas
remoteproc: qcom: pas: Add Shikra remoteproc support
dt-bindings: remoteproc: qcom,shikra-pas: Document Shikra PAS remoteprocs
dt-bindings: remoteproc: Add Shikra RPM processor compatible
remoteproc: qcom: Unify user-visible "Qualcomm" name
remoteproc: qcom: Fix leak when custom dump_segments addition fails
remoteproc: qcom_q6v5_wcss: drop redundant wcss_q6_bcr_reset
dt-bindings: remoteproc: qcom,sm8550-pas: Add Hawi CDSP compatible
dt-bindings: remoteproc: qcom,sm8550-pas: Add Hawi ADSP compatible
remoteproc: xlnx: Enable auto boot feature
dt-bindings: remoteproc: xlnx: Add firmware-name property
remoteproc: xlnx: Remove binding header dependency
remoteproc: imx_rproc: Use device node name as processor name
remoteproc: use rsc_table_for_each_entry() in rproc_handle_resources()
remoteproc: Move resource table data structure to its own header
remoteproc: xlnx: Check remote core state
remoteproc: imx_rproc: Add support for i.MX94
remoteproc: imx_rproc: Program non-zero SM CPU/LMM reset vector
dt-bindings: remoteproc: imx-rproc: Support i.MX94
remoteproc: Dead code cleanup in Kconfig for STM32_RPROC
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Pull virtio updates from Michael Tsirkin:
- new virtio CAN driver
- support for LoongArch architecture in fw_cfg
- support for firmware notifications in vdpa/octeon_ep
- support for VFs in virtio core
- fixes, cleanups all over the place, notably:
- vhost: fix vhost_get_avail_idx for a non empty ring
fixing an significant old perf regression
- READ_ONCE() annotations mean virtio ring is now
free of KCSAN warnings
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (37 commits)
can: virtio: Fix comment in UAPI header
can: virtio: Add virtio CAN driver
virtio: add num_vf callback to virtio_bus
fw_cfg: Add support for LoongArch architecture
vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
vdpa/octeon_ep: Add vDPA device event handling for firmware notifications
vdpa/octeon_ep: Use 4 bytes for mailbox signature
vdpa/octeon_ep: Fix PF->VF mailbox data address calculation
vhost_task_create: kill unnecessary .exit_signal initialization
vhost: remove unnecessary module_init/exit functions
vdpa/mlx5: Use kvzalloc_flex() for MTT command memory
vdpa_sim_net: switch to dynamic root device
vdpa_sim_blk: switch to dynamic root device
virtio-mem: Destroy mutex before freeing virtio_mem
virtio-balloon: Destroy mutex before freeing virtio_balloon
tools/virtio: fix build for kmalloc_obj API and missing stubs
virtio_ring: Add READ_ONCE annotations for device-writable fields
vduse: fix compat handling for VDUSE_IOTLB_GET_FD/VDUSE_VQ_GET_INFO
tools/virtio: check mmap return value in vringh_test
vhost/net: complete zerocopy ubufs only once
...
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Pull arm SoC code updates from Arnd Bergmann:
"The largest addition here is the revived support for the ZTE ZX SoC
platform, though this mostly documentation.
The other changes are code cleanups that deal with continued
conversion of the GPIO library away from GPIO numbers to descriptors
and a few minor bugfixes"
* tag 'soc-arm-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: Add Axiado reviewer and Maintainers
ARM: remove the last few uses of do_bad_IRQ()
ARM: imx31: Fix IIM mapping leak in revision check
ARM: imx3: Fix CCM node reference leak
ARM: orion5x: update board check in mss2_pci_init() to use the DT
arm: mvebu_v5_defconfig: remove stale MACH_LINKSTATION_LSCHL reference
ARM: mvebu: simplify of_node_put calls
ARM: mvebu: drop unnecessary NULL check
arm: boot: ep93xx: don't rely on machine_is_*() for removed board files
ARM: zte: clean up zx297520v3 doc. warnings
arm64: Kconfig: drop unneeded dependency on OF_GPIO for ARCH_MVEBU
firmware: imx: sm-misc: Make scmi_imx_misc_ctrl_nb variable static
ARM: zte: Add zx297520v3 platform support
ARM: pxa: pxa27x: attach software node to its target GPIO controller
ARM: pxa: pxa25x: attach software node to its target GPIO controller
ARM: pxa: spitz: attach software nodes to their target GPIO controllers
ARM: pxa: statify platform device definitions in spitz board file
ARM: omap2: simplify allocation for omap_device
ARM: select legacy gpiolib interfaces where used
ARM: s3c: use gpio lookup table for LEDs
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"There are a few added drivers, but mostly the normal maintenance to
drivers for firmware, memory controller and other soc specific
hardware:
- The NXP QuickEngine gets modern MSI support, which allows some
cleanups to the GICv3 irqchip chip driver
- A new SoC specific driver for the Renesas R-Car MFIS unit is added,
encapsulating support for the on-chip mailbox and hwspinlock
implementations that are not easily separated into individual
drivers
- The Qualcomm SoC drivers add support for additional SoC
implementations, and flexibility around power management for the
serial-engine driver as well as probing the LLCC driver using
custom hardware descriptions inside of the device itself.
- Added support for the Samsung thermal management unit
- A cleanup to the Tegra 'PMC' driver interfaces to remove legacy
APIs and allow multiple PMC instances everywhere.
- Updates to the TI SCI and KNAS drivers to improve suspend/resume
support.
- Minor driver changes for mediatek, xilinx, allwinner, aspeed,
tegra, broadcom, amd, microchip and starfive specific drivers
- Memory controller updates for Tegra and Renesas for additional SoC
types and other improvements.
- Firmware driver updates for Arm FF-A, SMCCC and SCMI interfaces, to
update driver probing, object lifetimes and address minor bugs"
* tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (189 commits)
Revert "firmware: zynqmp: Add dynamic CSU register discovery and sysfs interface"
Revert "Documentation: ABI: add sysfs interface for ZynqMP CSU registers"
memory: tegra234: drop dead NULL check in tegra234_mc_icc_aggregate()
memory: tegra264: drop redundant tegra264_mc_icc_aggregate()
memory: tegra186-emc: stop borrowing MC aggregate hook for EMC
soc: aspeed: cleanup dead default for ASPEED_SOCINFO
firmware: tegra: bpmp: Add support for multi-socket platforms
firmware: tegra: bpmp: Propagate debugfs errors
soc/tegra: pmc: Add Tegra238 support
soc/tegra: pmc: Restrict power-off handler to Nexus 7
soc/tegra: pmc: Populate powergate debugfs only when needed
soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard
soc/tegra: pmc: Remove unused legacy functions
soc/tegra: pmc: Create PMC context dynamically
firmware: samsung: acpm: remove compile-testing stubs
firmware: samsung: acpm: Add devm_acpm_get_by_phandle helper
firmware: samsung: acpm: Add TMU protocol support
firmware: samsung: acpm: Make acpm_ops const and access via pointer
firmware: samsung: acpm: Drop redundant _ops suffix in acpm_ops members
firmware: samsung: acpm: Annotate rx_data->cmd with __counted_by_ptr
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome-platform firmware updates from Tzung-Bi Shih:
- Add bound checks when iterating the coreboot table
- Skip failing entries only instead of aborting the whole device
populate from the coreboot table
* tag 'chrome-platform-firmware-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
firmware: google: Skip failing entries instead of aborting populate
firmware: google: Add bounds checks in coreboot_table_populate()
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interface"
This reverts commit 47d7bca76dd4f36ba0525d761f247c76ec9e4b17, which was
merged by accident.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull x86 cpuid updates from Ingo Molnar:
- CPUID API updates (Ahmed S. Darwish):
- Introduce a centralized CPUID parser
- Introduce a centralized CPUID data model
- Introduce <asm/cpuid/leaf_types.h>
- Rename cpuid_leaf()/cpuid_subleaf() APIs
- treewide: Explicitly include the x86 CPUID headers
- Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)
- Continued removal of pre-i586 support and related simplifications
(Ingo Molnar)
- Add Intel CPU model number for rugged Panther Lake (Tony Luck)
- Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao, Lukas
Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.
* tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (25 commits)
x86/cpu: Make CONFIG_X86_CX8 unconditional
x86/cpu: Remove unused !CONFIG_X86_TSC code
x86/cpuid: Update bitfields to x86-cpuid-db v3.1
tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.1
x86/cpu: Make CONFIG_X86_TSC unconditional
MAINTAINERS: Drop obsolete FPU EMULATOR section
x86/cpu: Fix a F00F bug warning and clean up surrounding code
x86/cpu: Add Intel CPU model number for rugged Panther Lake
x86/cpuid: Introduce a centralized CPUID parser
x86/cpu: Introduce a centralized CPUID data model
x86/cpuid: Introduce <asm/cpuid/leaf_types.h>
x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs
x86/cpu: Do not include the CPUID API header in asm/processor.h
Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs
x86/cpu, cpufreq: Remove AMD ELAN support
x86/fpu: Remove the math-emu/ FPU emulation library
x86/fpu: Remove the 'no387' boot option
x86/fpu: Remove MATH_EMULATION and related glue code
treewide: Explicitly include the x86 CPUID headers
x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk
...
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gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add new hardware support (i.MX93 TMU, Amlogic T7, Intel Arrow
Lake, QCom Nord, Shikra and Hawi), fix issues in a number of places in
the thermal control core and drivers, clean up code and refactor it in
preparation for future changes:
- Rework the initialization and cleanup of thermal class cooling
devices to separate DT-based cooling device registration and
cooling device registration without DT (Daniel Lezcano, Ovidiu
Panait)
- Update the cooling device DT bindings to support 3-cell cooling
device representation, where the additional cell holds an ID to
select a cooling mechanism for devices that offer multiple cooling
mechanisms, and adjust the cooling device registration code
accordingly (Gaurav Kohli, Daniel Lezcano)
- Remove dead code from two functions in the thermal core and
simplify the unregistration of thermal governors (Rafael Wysocki)
- Fix critical temperature attribute removal handling in the generic
thermal zone hwmon support code and rework that code to register a
separate hwmon class device for each thermal zone (instead of using
one hwmon class device for all thermal zones of the same type) to
address thermal zone removal deadlocks (Rafael Wysocki)
- Use attribute groups for adding temperature attributes to hwmon
class devices associated with thermal zones (Rafael Wysocki)
- Pass WQ_UNBOUND when allocating the thermal workqueue (Marco
Crivellari)
- Fix potential shift overflow in ptc_mmio_write() and improve error
handling in proc_thermal_ptc_add() in the int340x thermal control
driver (Aravind Anilraj)
- Use sysfs_emit() for cpumask printing in the Intel powerclamp
thermal driver (Yury Norov)
- Add Arrow Lake CPU models to the intel_tcc_cooling driver (Srinivas
Pandruvada)
- Add QCom Nord, Shikra and Hawi temperature sensor DT bindings
(Deepti Jaggi, Gaurav Kohli, Dipa Ramesh Mantre)
- Use devm_add_action_or_reset() for clock disable on the NVidia
soctherm and switch it to devm cooling device registration version
(Daniel Lezcano)
- Add the Amlogic T7 thermal sensor along with thermal calibration
data read from SMC calls (Ronald Claveau)
- Fix atomic temperature read in the QCom tsens driver to comply with
hardware documentation (Priyansh Jain)
- Add SpacemiT K1 thermal sensor support (Shuwei Wu)
- Add i.MX93 temperature sensor support and filter out the invalid
temperature (Jacky Bai)
- Enable by default the TMU (Thermal Monitoring Unit) on Exynos
platform (Krzysztof Kozlowski)
- Rework interrupt initialization in the Tsens driver and add the
optional wakeup source (Priyansh Jain)
- Fix typo in a comment in the TSens QCom driver (Jinseok Kim)
- Fix trailing whitespace and repeated word in the OF code, remove
quoted string splitting across lines from the iMX7 driver, and
remove a stray space from the thermal_trip_of_attr() macro
definition (Mayur Kumar)
- Update the thermal testing facility code to avoid NULL pointer
dereferences by rejecting missing command arguments and replace
sscanf() with kstrtoint() or kstrtoul() in that code (Ovidiu
Panait, Samuel Moelius)"
* tag 'thermal-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
thermal: sysfs: Replace sscanf() with kstrtoul()
thermal: testing: Replace sscanf() with kstrtoint()
thermal: testing: reject missing command arguments
thermal: intel: intel_tcc_cooling: Add Arrow Lake CPU models
thermal/drivers/qcom/tsens: Disable wakeup interrupt setup on automotive targets
thermal/drivers/qcom/tsens: Switch wake IRQ handling to PM callbacks
thermal/core: Fix missing stub for devm_thermal_cooling_device_register
dt-bindings: thermal: cooling-devices: Update support for 3 cells cooling device
thermal/of: Support cooling device ID in cooling-spec
thermal/of: Pass cdev_id and introduce devm registration helper
thermal/of: Add cooling device ID support
thermal/of: Rename the devm_thermal_of_cooling_device_register() function
thermal/core: Make cooling device OF node conditional on CONFIG_THERMAL_OF
thermal/of: Move cooling device OF helpers out of thermal core
hwmon: Use non-OF thermal cooling device registration API
thermal/core: Add devm_thermal_cooling_device_register()
thermal/core: Introduce non-OF thermal_cooling_device_register()
thermal/drivers/samsung: Enable TMU by default
thermal/driver/qoriq: Workaround unexpected temperature readings from tmu
thermal/drivers/qoriq: Add i.MX93 tmu support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull task_exec_state updates from Christian Brauner:
"This introduces a new per-task task_exec_state structure and relocates
the dumpable mode and the user namespace captured at execve() from
mm_struct onto it. It stays attached to the task for its full
lifetime.
__ptrace_may_access() and several /proc owner and visibility checks
need to consult two pieces of state for any observable task, including
zombies that have already gone through exit_mm(): the dumpable mode
and the user namespace captured at execve(). Both live on mm_struct
today, which exit_mm() clears from the task long before the task is
reaped. A reader that races with do_exit() observes task->mm == NULL
and either fails the check or falls back to init_user_ns - which
denies legitimate access to non-dumpable zombies that were running in
a nested user namespace.
mm_struct loses ->user_ns and the dumpability bits in ->flags.
MMF_DUMPABLE_BITS is reserved so the MMF_DUMP_FILTER_* layout exposed
via /proc/<pid>/coredump_filter stays stable. task->user_dumpable and
its exit_mm() snapshot are removed.
task_exec_state is the privilege domain established by an execve().
Within a thread group it is shared via refcount; across thread groups
each task has its own:
- CLONE_VM siblings (thread-group members, io_uring workers)
refcount-share the parent's exec_state.
- Non-CLONE_VM clones (fork(), vfork() without CLONE_VM) allocate a
fresh exec_state inheriting the parent's dumpable mode and user_ns.
- execve() in the child allocates a fresh instance and installs it
under task_lock + exec_update_lock via task_exec_state_replace().
- Credential changes (setresuid, capset, ...) and
prctl(PR_SET_DUMPABLE) update dumpability on the current task's
exec_state, i.e., on the thread group's shared instance.
On top of this exec_mmap() no longer tears down the old mm while
holding exec_update_lock for writing and cred_guard_mutex. Neither
lock is needed for that: exec_update_lock only exists to make the mm
swap atomic with the later commit_creds() and all its readers operate
on the new mm; none looks at the detached old mm.
The cost was real: __mmput() runs exit_mmap() over the entire old
address space and can block in exit_aio() waiting for in-flight AIO,
so execve() of a large process blocked ptrace_attach() and every
exec_update_lock reader for the duration of the teardown.
The old mm is now stashed in bprm->old_mm and released from
setup_new_exec() after both locks are dropped, with a backstop in
free_bprm() for the error paths"
* tag 'kernel-7.2-rc1.task_exec_state' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
exec: free the old mm outside the exec locks
exec_state: relocate dumpable information
ptrace: add ptracer_access_allowed()
exec: introduce struct task_exec_state
sched/coredump: introduce enum task_dumpable
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small driver fixes for 7.1-final to resolve some
reported issues. Included in here are:
- slimbus qcom driver bugfixes
- nvmem driver bugfixes
- fastrpc driver bugfixes
- stratix10 firmware driver bugfixes
All of these have been in linux-next for over a week with no
reported issues"
* tag 'char-misc-7.1-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
misc: fastrpc: fix use-after-free race in fastrpc_map_create
misc: fastrpc: Fix NULL pointer dereference in rpmsg callback
misc: fastrpc: fix DMA address corruption due to find_vma misuse
misc: fastrpc: fix use-after-free of fastrpc_user in workqueue context
slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock
slimbus: qcom-ngd-ctrl: Balance pm_runtime enablement for NGD
slimbus: qcom-ngd-ctrl: Initialize controller resources in controller
slimbus: qcom-ngd-ctrl: Register callbacks after creating the ngd
slimbus: qcom-ngd-ctrl: Correct PDR and SSR cleanup ownership
slimbus: qcom-ngd-ctrl: Fix probe error path ordering
slimbus: qcom-ngd-ctrl: Fix up platform_driver registration
slimbus: qcom-ngd-ctrl: fix OF node refcount
nvmem: core: fix use-after-free bugs in error paths
nvmem: layouts: onie-tlv: fix hang on unknown types
firmware: stratix10-rsu: Fix NULL deref on rsu_send_msg() timeout in probe
firmware: stratix10-svc: Don't fail probe when async ops unsupported
firmware: stratix10-svc: Return -EOPNOTSUPP when ATF async unsupported
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Qemu fw_cfg support was missing for LoongArch, which made some functions
unusable in virtual machines. So add the missing LoongArch defines.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260529140559.1775511-1-chenhuacai@loongson.cn>
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https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/drivers
TI SoC driver updates for v7.2
TI K3 TISCI:
- ti_sci: Add BOARDCFG_MANAGED mode for support system suspend/resume cycles
- ti_sci: Add support for restoring IRQ and clock contexts during resume.
- clk: keystone: sci-clk: Add clock restoration support.
SoC Drivers:
- k3-socinfo: Add support for identifying AM62P silicon variants via NVMEM,
along with corresponding dt-bindings update for nvmem-cells support
- k3-ringacc: Fix incorrect access mode for ring pop tail IO/proxy operations
Keystone Navigator (knav) Cleanup and Fixes:
- knav_qmss: Multiple code quality improvements
- knav_qmss_queue: Implement proper resource cleanup in the remove() path
General Cleanups:
- k3-ringacc: Use str_enabled_disabled() helper for consistency
- knav_qmss: Use %pe format specifier for PTR_ERR() printing
* tag 'ti-driver-soc-for-v7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
firmware: ti_sci: Add support for restoring clock context during resume
clk: keystone: sci-clk: Add restore_context() operation
firmware: ti_sci: Add support for restoring IRQs during resume
firmware: ti_sci: Add BOARDCFG_MANAGED mode support
soc: ti: k3-ringacc: Use str_enabled_disabled() helper
soc: ti: knav_dma: Use IOMEM_ERR_PTR() in pktdma_get_regs()
soc: ti: knav_dma: Remove dead check on unsigned args.args[0]
soc: ti: knav_dma: Remove unused DMA_PRIO_MASK macro
soc: ti: knav_qmss_acc: Fix kernel-doc Return: tag
soc: ti: knav_qmss: Fix __iomem annotations and __be32 type
soc: ti: knav_qmss: Use %pe to print PTR_ERR()
soc: ti: knav_qmss: Fix kernel-doc Return: tags
soc: ti: knav_qmss: Inline lockdep condition in for_each_handle_rcu
soc: ti: knav_qmss: Rename global kdev to knav_qdev to fix -Wshadow
soc: ti: knav_qmss: Remove remaining redundant ENOMEM printks
soc: ti: knav_qmss_queue: Implement resource cleanup in remove()
soc: ti: k3-ringacc: Fix access mode for k3_ringacc_ring_pop_tail_io/proxy
soc: ti: knav_dma: fix all kernel-doc warnings in knav_dma.h
soc: ti: k3-socinfo: Add support for AM62P variants via NVMEM
dt-bindings: hwinfo: ti,k3-socinfo: Add nvmem-cells support
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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into soc/drivers
This pull request contains Broadcom SoC drivers changes for 7.2, please
pull the following:
- Justin changes the soc_device driver to be more modern and consolidate
the initialization
- Chen-Yu updates the BCM2835 firmware Kconfig dependency and adds
COMPILE_TEST
* tag 'arm-soc/for-7.2/drivers' of https://github.com/Broadcom/stblinux:
firmware: raspberrypi: Change dependency to ARCH_BCM2835 and COMPILE_TEST
soc: brcmstb: consolidate initcall functions
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 v7.2
Improve Samsung Exynos (and Google GS101) ACPM (Alive Clock and Power
Manager) firmware driver:
1. Few code improvements.
2. Add support for protocol used to communicate with Thermal Management
Unit (TMU). This will allow to implement the thermal driver working
for newer Samsung Exynos and Google GS101 SoCs.
* tag 'samsung-drivers-7.2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
firmware: samsung: acpm: remove compile-testing stubs
firmware: samsung: acpm: Add devm_acpm_get_by_phandle helper
firmware: samsung: acpm: Add TMU protocol support
firmware: samsung: acpm: Make acpm_ops const and access via pointer
firmware: samsung: acpm: Drop redundant _ops suffix in acpm_ops members
firmware: samsung: acpm: Annotate rx_data->cmd with __counted_by_ptr
firmware: samsung: acpm: Consolidate transfer initialization helper
firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion
firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator
firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling
firmware: samsung: acpm: Fix mailbox channel leak on probe error
firmware: samsung: acpm: Fix cross-thread RX length corruption
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
firmware: tegra: Changes for v7.2-rc1
This set of changes contains another attempt at resolving a Kconfig
dependency, propagates debugfs error codes and adds support for multiple
sockets to the BPMP driver.
* tag 'tegra-for-7.2-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: bpmp: Add support for multi-socket platforms
firmware: tegra: bpmp: Propagate debugfs errors
firmware: tegra: Make TEGRA_IVC a hidden Kconfig symbol
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into char-misc-next
Dinh writes:
SoCFPGA firmware updates for v7.2
- Simplify service driver memory management by using a flexible array
- Change FCS call to get provision data to asynchronous
- Avoid blocking the call the reboot_image sysfs when busy
- Add support to query the ATF version
* tag 'svc_updates_for_v7.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version
firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy
firmware: stratix10-svc: change get provision data to async SMC call
firmware: stratix10-svc: kmalloc_array + kzalloc to flex
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Add entry in Stratix10 service layer that allow client to retrieve the ATF
version at runtime, which is useful for system diagnostics, compatibility
checks, and ensuring the correct secure firmware is in use.
The change introduces:
- A new service command definition in the Stratix10 service layer to
initiate the ATF version query.
- A corresponding macro definition in the header file to expose the command
ID for use by other components.
The service layer uses a Secure Monitor Call (SMC) to communicate with the
ATF and retrieve the version string, which can then be logged or validated
by client application.
Signed-off-by: Tze Yee Ng <tze.yee.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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Writes to the reboot_image sysfs attribute went through rsu_send_msg(),
which unconditionally takes priv->lock with mutex_lock(). If another RSU
operation is in flight (e.g. a DCMF status query from probe or a
concurrent sysfs read path), userspace writers get stuck in the kernel
waiting on the mutex instead of being told the device is busy.
Split rsu_send_msg() into an inner __rsu_send_msg_locked() helper that
performs the SMC transaction with the caller holding priv->lock, plus
two thin wrappers: rsu_send_msg() preserves the original blocking
behaviour for existing callers, and rsu_try_send_msg() uses
mutex_trylock() and returns -EBUSY immediately when the lock is held.
Use rsu_try_send_msg() from reboot_image_store() so the write returns
-EBUSY without blocking when an RSU operation is already running.
Userspace can retry on -EBUSY. No functional change for other sysfs
attributes.
This keeps blocking rsu_send_msg() for existing callers, add
rsu_try_send_msg() with -EBUSY only for reboot_image_store(). That
matches the original goal (avoid a second reboot_image write blocking
behind priv->lock) without changing sysfs behaviour for the other
attributes. The earlier idea of using mutex_trylock() in all of
rsu_send_msg() and returning -EAGAIN would have been harder to justify
for userspace (echo does not retry on that).
Tze Yee tested the patch on an Agilex SoC devkit.
[Test 1] Idle reboot_image write (success path)
Result:
# insmod stratix10-rsu.ko
# echo 0x01000000 > .../reboot_image
# echo "exit=$?"
exit=0
# ./rsu_client --log
VERSION: 0x00000202
STATE: 0x00000000
CURRENT IMAGE: 0x0000000001000000
FAIL IMAGE: 0x0000000000000000
ERROR LOC: 0x00000000
ERROR DETAILS: 0x00000000
RETRY COUNTER: 0x00000000
Operation completed
[Test 2] reboot_image while priv->lock is held (-EBUSY path)
To get a deterministic busy window without flooding the service layer,
add a local debug helper (module parameter debug_hold_lock_sec +
kthread that holds priv->lock for N seconds after probe).
Result:
# insmod stratix10-rsu.ko debug_hold_lock_sec=60
[ 121.220904] stratix10-rsu stratix10-rsu.0: TEST: RSU lock held for
60 s - try reboot_image now
# echo 0x01000000 > .../reboot_image
-sh: echo: write error: Device or resource busy
# echo "during hold: exit=$?"
during hold: exit=1
[ 183.268706] stratix10-rsu stratix10-rsu.0: TEST: RSU lock released
# echo 0x01000000 > .../reboot_image
# echo "after release: exit=$?"
after release: exit=0
Together, these results match the intended behaviour: reboot_image
fails fast with -EBUSY when the RSU mutex is already held, and
succeeds once the lock is available.
Assisted-by: Claude:claude-opus-4-7
Tested-by: Tze Yee Ng <tze.yee.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into char-misc-linus
Dinh writes:
firmware: stratix10-svc and stratix10-rsu: fixes for v7.1
- Return -EOPNOTSUPP when ATF async is not supported
- Fix SVC driver from loading entirely when asynchronous ops is not
supported in older ATF.
- Fix a NULL pointer dereference on a timeout in rsu_send_msg()
* tag 'svc_fixes_for_v7.1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
firmware: stratix10-rsu: Fix NULL deref on rsu_send_msg() timeout in probe
firmware: stratix10-svc: Don't fail probe when async ops unsupported
firmware: stratix10-svc: Return -EOPNOTSUPP when ATF async unsupported
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soc/drivers
arm64: Xilinx SOC changes for 7.2
firmware:
- Add CSU register discovery with sysfs interface
zynqmp_power:
- Fix race condition in event registration
- Fix shutdown and free rx mailbox channel
* tag 'zynqmp-soc-for-7.2' of https://github.com/Xilinx/linux-xlnx:
firmware: zynqmp: Add dynamic CSU register discovery and sysfs interface
Documentation: ABI: add sysfs interface for ZynqMP CSU registers
soc: xilinx: Shutdown and free rx mailbox channel
soc: xilinx: Fix race condition in event registration
Signed-off-by: Linus Walleij <linusw@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"Following the previous set of fixes, this addresses another
significant number of small issues found in firmware drivers (tee,
optee, qcomtee, qcom ice, exynos acpm) drivers through various tools.
This is about error handling, resource leaks, concurrency and a
use-after-free bug.
The fixes for the Qualcomm ICE driver also introduce interface changes
in the UFS and MMC drivers using it.
Outside of firmware drivers, there are a few fixes across the tree:
- Minor driver code mistakes in the Atmel EBI memory controller, the
i.MX soc ID driver and socfpga boot logic
- A defconfig change to avoid a boot time regression on multiple
qualcomm boards
- Device tree fixes for qualcomm, at91 and gemini, addressing mostly
minor configuration mistakes"
* tag 'soc-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (28 commits)
firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion
firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator
firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling
ARM: dts: gemini: Fix partition offsets
ARM: socfpga: Fix OF node refcount leak in SMP setup
soc: qcom: ice: Fix the error code when 'qcom,ice' property is not found
arm64: dts: qcom: eliza: Add power-domain and iface clk for ice node
arm64: dts: qcom: milos: Add power-domain and iface clk for ice node
tee: qcomtee: add missing va_end in early return qcomtee_object_user_init()
tee: fix params_from_user() error path in tee_ioctl_supp_recv
tee: shm: fix shm leak in register_shm_helper()
tee: fix tee_ioctl_object_invoke_arg padding
arm64: defconfig: Enable PCI M.2 power sequencing driver
scsi: ufs: ufs-qcom: Remove NULL check from devm_of_qcom_ice_get()
mmc: sdhci-msm: Remove NULL check from devm_of_qcom_ice_get()
soc: qcom: ice: Return proper error codes from devm_of_qcom_ice_get() instead of NULL
soc: qcom: ice: Return -ENODEV if the ICE platform device is not found
soc: qcom: ice: Fix race between qcom_ice_probe() and of_qcom_ice_get()
ARM: dts: microchip: sam9x7: fix GMAC clock configuration
firmware: samsung: acpm: Fix mailbox channel leak on probe error
...
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On multi-socket platforms each socket has its own BPMP that is
registered with the kernel, so the existing single fixed "bpmp"
debugfs directory name cannot accommodate more than one instance.
Group the per-socket BPMP debugfs entries under a shared top-level
/sys/kernel/debug/bpmp/ directory, with each socket's BPMP device
under a "<numa-node-id>-bpmp" subdirectory:
/sys/kernel/debug/bpmp/0-bpmp/...
/sys/kernel/debug/bpmp/1-bpmp/...
For a multi-socket platform, the root debugfs bpmp/ directory is created
by the first BPMP device that is populated. For single-socket platforms,
the existing directory structure is preserved.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The Tegra BPMP debugfs code returns -ENOMEM for most cases where calls
to debugfs_create_dir() or debugfs_create_file() fail. These debugfs
functions return an ERR_PTR with the actual error code on failure.
Therefore, update the Tegra BPMP debugfs code to propagate the actual
error code on failure.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm FF-A + SMCCC updates for v7.2
1. The FF-A core is moved onto the driver model by reverting the earlier
rootfs initcall change and registering the core as a platform driver with
a synthetic arm-ffa platform device. Enumerated FF-A devices are now
parented below the FF-A core device, and probing is deferred until pKVM
has completed its FF-A proxy initialisation.
2. The platform-driver conversion is also adjusted so systems without FF-A
support treat early unsupported transport/version discovery as a quiet
probe miss rather than a failed matched probe.
3. The register-based partition discovery path now honors the descriptor
size reported by FFA_PARTITION_INFO_GET_REGS. This keeps parsing aligned
for newer FF-A descriptor layouts while still copying only the fields the
driver understands.
4. Also included is an Arm SMCCC fix for the optional SOC_ID name call: the
name query now uses the SMC64 function ID required for returning eight
characters per register.
* tag 'ffa-updates-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_ffa: Treat missing FF-A feature on a platform as a probe miss
firmware: smccc: Fix Arm SMCCC SOC_ID name call
firmware: arm_ffa: Honor partition info descriptor size
firmware: arm_ffa: Defer probe until pKVM is initialized
firmware: arm_ffa: Set the core device as FF-A device parent
firmware: arm_ffa: Register core as a platform driver
Revert "firmware: arm_ffa: Change initcall level of ffa_init() to rootfs_initcall"
firmware: arm_ffa: Fix sched-recv callback partition lookup
firmware: arm_ffa: Snapshot notifier callbacks under lock
firmware: arm_ffa: Align RxTx buffer size before mapping
firmware: arm_ffa: Validate framework notification message layout
firmware: arm_ffa: Keep framework RX release under lock
firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies
firmware: arm_ffa: Unregister bus notifier on teardown for FF-A v1.0
firmware: arm_ffa: Fix per-vcpu self notifications handling in workqueue
firmware: arm_ffa: Avoid collapsing NPI work from different CPUs
firmware: arm_ffa: Skip free_pages on RX buffer alloc failure
firmware: arm_ffa: Check for NULL FF-A ID table while driver registration
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v7.2
1. Improve SCMI clock handling with a protocol-level determine_rate operation,
simplified per-clock rate properties, dynamic rate allocation, bounded
iterator support, lazy full-rate discovery, and hardened parent/rate
enumeration.
2. Fix several SCMI bounds and payload validation issues, including clock rate
discovery OOB handling, power domain name lookup, Powercap domain state
access, BASE_ERROR_EVENT and SENSOR_UPDATE payload sizing, and sensor config
width handling.
3. Rework SCMI transport probing for virtio and OP-TEE using per-instance
transport handles and a generic transport supplier, removing the need to
register SCMI core drivers from transport probe paths.
4. Add i.MX SCMI MISC reset reason support and print i.MX95 boot/shutdown
reasons via the System Manager interface.
5. Clean up SCMI core internals, including base-info naming, quirk parsing and
table iteration, and list iteration.
6. Fix SCPI clock provider removal so child clock providers are unregistered
using the same DT nodes used at registration time.
* tag 'scmi-updates-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (31 commits)
firmware: arm_scmi: optee: Rework transport probe sequence
firmware: arm_scmi: virtio: Rework transport probe sequence
firmware: arm_scmi: Add a generic transport supplier
firmware: arm_scmi: Add transport instance handles
firmware: arm_scmi: Fix OOB in scmi_power_name_get()
firmware: arm_scmi: Validate Powercap domains before state access
firmware: arm_scmi: Validate SENSOR_UPDATE payload size
firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size
firmware: arm_scmi: Read sensor config as 32-bit value
clk: scpi: Unregister child clock providers on remove
firmware: arm_scmi: Introduce all_rates_get clock operation
firmware: arm_scmi: Fix OOB in scmi_clock_describe_rates_get_lazy()
firmware: arm_scmi: Use bound iterators to minimize discovered rates
firmware: arm_scmi: Use proper iter_response_bound_cleanup() name
firmware: arm_scmi: Fix bound iterators returning too many items
firmware: arm_scmi: Add bound iterators support
firmware: arm_scmi: Refactor iterators internal allocation
firmware: arm_scmi: Harden clock parents discovery
firmware: arm_scmi: Make clock rates allocation dynamic
firmware: arm_scmi: Drop unused clock rate interfaces
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Introduce devm_acpm_get_by_phandle() to standardize how consumer
drivers acquire a handle to the ACPM IPC interface. Enforce the
use of the "samsung,acpm-ipc" property name across the SoC and
simplify the boilerplate code in client drivers.
The first consumer of this helper is the Exynos ACPM Thermal Management
Unit (TMU) driver. The TMU utilizes a hybrid management approach: direct
register access from the Application Processor (AP) is restricted to the
interrupt pending (INTPEND) registers for event identification.
High-level functional tasks, such as sensor initialization, threshold
programming, and temperature reads, are delegated to the ACPM firmware
via this IPC interface.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-6-8ca011d5a965@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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The Thermal Management Unit (TMU) on the Google GS101 SoC is managed
through a hybrid model shared between the kernel and the Alive Clock
and Power Manager (ACPM) firmware.
Add the protocol helpers required to communicate with the ACPM for
thermal operations, including initialization, threshold configuration,
temperature reading, and system suspend/resume handshakes.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-5-8ca011d5a965@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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Replace the embedded `struct acpm_ops` inside `struct acpm_handle` with
a pointer to a `const struct acpm_ops`.
Previously, the operations structure was embedded directly within the
handle and populated dynamically at runtime via `acpm_setup_ops()`.
This resulted in mutable function pointers and unnecessary per-instance
memory overhead.
By defining `exynos_acpm_driver_ops` statically as a `const` structure,
the function pointers are now safely housed in the read-only `.rodata`
section. This improves security by preventing function pointer
overwrites, saves memory, and slightly reduces initialization overhead
in `acpm_probe()`.
Consequently, update all consumer drivers (clk, mfd) to access the
operations via the new pointer indirection (`->ops->`). Finally, fix
the previously empty kernel-doc description for the ops member to
reflect its new pointer nature.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-4-8ca011d5a965@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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Rename the `dvfs_ops` and `pmic_ops` members of `struct acpm_ops` to
`dvfs` and `pmic` respectively.
Since these members are housed within the `acpm_ops` structure and
utilize the `acpm_*_ops` types, the `_ops` suffix on the variable names
creates unnecessary redundancy (e.g., `handle.ops.dvfs_ops`).
This cleanup removes the stuttering, leading to cleaner consumer code.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/linux-samsung-soc/CADrjBPqzKpcd9vuCmNUptCUPyPpPbHcc19-7kN-1c0RpW1e5DQ@mail.gmail.com/T/#mcce154a7e0c6cd1ca6cd5a1e37541ed7a85a84d4 [1]
Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-3-8ca011d5a965@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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Rename the `n_cmd` member of `struct acpm_rx_data` to `cmdcnt` to
maintain consistent nomenclature across the driver (aligning with
`txcnt`, `rxcnt`, and transfer helpers).
With the member renamed, annotate the dynamically allocated `cmd`
pointer with the `__counted_by_ptr(cmdcnt)` macro to improve runtime
bounds checking.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-2-8ca011d5a965@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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