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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc/IIO/Binder updates from Greg KH:
"Here is the big set of char/misc/iio and other driver subsystem
changes for 6.18-rc1.
Loads of different stuff in here, it was a busy development cycle in
lots of different subsystems, with over 27k new lines added to the
tree.
Included in here are:
- IIO updates including new drivers, reworking of existing apis, and
other goodness in the sensor subsystems
- MEI driver updates and additions
- NVMEM driver updates
- slimbus removal for an unused driver and some other minor updates
- coresight driver updates and additions
- MHI driver updates
- comedi driver updates and fixes
- extcon driver updates
- interconnect driver additions
- eeprom driver updates and fixes
- minor UIO driver updates
- tiny W1 driver updates
But the majority of new code is in the rust bindings and additions,
which includes:
- misc driver rust binding updates for read/write support, we can now
write "normal" misc drivers in rust fully, and the sample driver
shows how this can be done.
- Initial framework for USB driver rust bindings, which are disabled
for now in the build, due to limited support, but coming in through
this tree due to dependencies on other rust binding changes that
were in here. I'll be enabling these back on in the build in the
usb.git tree after -rc1 is out so that developers can continue to
work on these in linux-next over the next development cycle.
- Android Binder driver implemented in Rust.
This is the big one, and was driving a huge majority of the rust
binding work over the past years. Right now there are two binder
drivers in the kernel, selected only at build time as to which one
to use as binder wants to be included in the system at boot time.
The binder C maintainers all agreed on this, as eventually, they
want the C code to be removed from the tree, but it will take a few
releases to get there while both are maintained to ensure that the
rust implementation is fully stable and compliant with the existing
userspace apis.
All of these have been in linux-next for a while"
* tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (320 commits)
rust: usb: keep usb::Device private for now
rust: usb: don't retain device context for the interface parent
USB: disable rust bindings from the build for now
samples: rust: add a USB driver sample
rust: usb: add basic USB abstractions
coresight: Add label sysfs node support
dt-bindings: arm: Add label in the coresight components
coresight: tnoc: add new AMBA ID to support Trace Noc V2
coresight: Fix incorrect handling for return value of devm_kzalloc
coresight: tpda: fix the logic to setup the element size
coresight: trbe: Return NULL pointer for allocation failures
coresight: Refactor runtime PM
coresight: Make clock sequence consistent
coresight: Refactor driver data allocation
coresight: Consolidate clock enabling
coresight: Avoid enable programming clock duplicately
coresight: Appropriately disable trace bus clocks
coresight: Appropriately disable programming clocks
coresight: etm4x: Support atclk
coresight: catu: Support atclk
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It
was another normal development cycle, with lots of the usual drivers
getting updates:
- Thunderbolt driver cleanups and additions
- dwc3 driver updates
- dwc2 driver updates
- typec driver updates
- xhci driver updates and additions
- offload USB engine updates for better power management
- unused tracepoint removals
- usb gadget fixes and updates as more users start to rely on these
drivers instead of the "old" function gadget drivers
- new USB device ids
- other minor driver USB driver updates
- new USB I/O driver framework and driver additions"
The last item, the usb i/o driver, has an i2c and gpio driver added
through this tree. Those drivers were acked by the respective
subsystem maintainers.
All of these have been in linux-next for a while"
* tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (132 commits)
usb: vhci-hcd: Prevent suspending virtually attached devices
USB: serial: option: add SIMCom 8230C compositions
thunderbolt: Fix use-after-free in tb_dp_dprx_work
usb: xhci: align PORTSC trace with one-based port numbering
usb: xhci: correct indentation for PORTSC tracing function
usb: xhci: improve TR Dequeue Pointer mask
usb: xhci-pci: add support for hosts with zero USB3 ports
usb: xhci: Update a comment about Stop Endpoint retries
Revert "usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running"
usb: gadget: f_rndis: Refactor bind path to use __free()
usb: gadget: f_ecm: Refactor bind path to use __free()
usb: gadget: f_acm: Refactor bind path to use __free()
usb: gadget: f_ncm: Refactor bind path to use __free()
usb: gadget: Introduce free_usb_request helper
usb: gadget: Store endpoint pointer in usb_request
usb: host: xhci-rcar: Add Renesas RZ/G3E USB3 Host driver support
usb: host: xhci-plat: Add .post_resume_quirk for struct xhci_plat_priv
usb: host: xhci-rcar: Move R-Car reg definitions
dt-bindings: usb: Document Renesas RZ/G3E USB3HOST
usb: gadget: f_fs: Fix epfile null pointer access after ep enable.
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Benjamin Tissoires:
- haptic touchpad support (Angela Czubak and Jonathan Denose)
- support for audio jack handling on DualSense Playstation controllers
(Cristian Ciocaltea)
- allow HID-BPF to rebind a driver to hid-multitouch (Benjamin
Tissoires)
- rework hidraw ioctls to make them safer (and tested) (Benjamin
Tissoires)
- various PIDFF and universal-PIDFF fixes/improvements (Tomasz Pakuła)
- better configuration of Intel QuickI2C through ACPI (Xinpeng Sun)
- other assorted cleanups and fixes
* tag 'hid-for-linus-2025093001' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (58 commits)
HID: playstation: Switch to scoped_guard() in {dualsense|dualshock4}_output_worker()
HID: playstation: Silence sparse warnings for locking context imbalances
HID: playstation: Update SP preamp gain comment line
HID: intel-thc-hid: intel-quicki2c: support ACPI config for advanced features
HID: core: Change hid_driver to use a const char* for name
HID: hidraw: tighten ioctl command parsing
selftests/hid: hidraw: forge wrong ioctls and tests them
selftests/hid: hidraw: add more coverage for hidraw ioctls
selftests/hid: update vmtest.sh for virtme-ng
HID: playstation: Support DualSense audio jack event reporting
HID: playstation: Support DualSense audio jack hotplug detection
HID: playstation: Redefine DualSense input report status field
HID: playstation: Prefer kzalloc(sizeof(*buf)...)
HID: playstation: Document spinlock_t usage
HID: playstation: Fix all alignment and line length issues
HID: playstation: Correct spelling in comment sections
HID: playstation: Replace uint{32,16,8}_t with u{32,16,8}
HID: playstation: Simplify locking with guard() and scoped_guard()
HID: playstation: Add spaces around arithmetic operators
HID: playstation: Make use of bitfield macros
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL updates from Dave Jiang:
"The changes include adding poison injection support, fixing CXL access
coordinates when onlining CXL memory, and delaing the enumeration of
downstream switch ports for CXL hierarchy to ensure that the CXL link
is established at the time of enumeration to address a few issues
observed on AMD and Intel platforms.
Misc changes:
- Use str_plural() instead of open code for emitting strings.
- Use str_enabled_disabled() instead of ternary operator
- Fix emit of type resource_size_t argument for
validate_region_offset()
- Typo fixup in CXL driver-api documentation
- Rename CFMWS coherency restriction defines
- Add convention doc describe dealing with x86 low memory hole
and CXL
Poison Inject support:
- Move hpa_to_spa callback to new reoot decoder ops structure
- Define a SPA to HPA callback for interleave calculation with
XOR math
- Add support for SPA to DPA address translation with XOR
- Add locked variants of poison inject and clear functions
- Add inject and clear poison support by region offset
CXL access coordinates update fix:
- A comment update for hotplug memory callback prority defines
- Add node_update_perf_attrs() for updating perf attrs on a node
- Update cxl_access_coordinates() to use the new node update function
- Remove hmat_update_target_coordinates() and related code
CXL delayed downstream port enumeration and initialization:
- Add helper to detect top of CXL device topology and remove
open coding
- Add helper to delete single dport
- Add a cached copy of target_map to cxl_decoder
- Refactor decoder setup to reduce cxl_test burden
- Defer dport allocation for switch ports
- Add mock version of devm_cxl_add_dport_by_dev() for cxl_test
- Adjust the mock version of devm_cxl_switch_port_decoders_setup()
due to cxl core usage
- Setup target_map for cxl_test decoder initialization
- Change SSLBIS handler to handle single dport
- Move port register setup to when first dport appears"
* tag 'cxl-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (25 commits)
cxl: Move port register setup to when first dport appear
cxl: Change sslbis handler to only handle single dport
cxl/test: Setup target_map for cxl_test decoder initialization
cxl/test: Adjust the mock version of devm_cxl_switch_port_decoders_setup()
cxl/test: Add mock version of devm_cxl_add_dport_by_dev()
cxl: Defer dport allocation for switch ports
cxl/test: Refactor decoder setup to reduce cxl_test burden
cxl: Add a cached copy of target_map to cxl_decoder
cxl: Add helper to delete dport
cxl: Add helper to detect top of CXL device topology
cxl: Documentation/driver-api/cxl: Describe the x86 Low Memory Hole solution
cxl/acpi: Rename CFMW coherency restrictions
Documentation/driver-api: Fix typo error in cxl
acpi/hmat: Remove now unused hmat_update_target_coordinates()
cxl, acpi/hmat: Update CXL access coordinates directly instead of through HMAT
drivers/base/node: Add a helper function node_update_perf_attrs()
mm/memory_hotplug: Update comment for hotplug memory callback priorities
cxl: Fix emit of type resource_size_t argument for validate_region_offset()
cxl/region: Add inject and clear poison by region offset
cxl/core: Add locked variants of the poison inject and clear funcs
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Paul McKenney:
"Documentation updates:
- Update whatisRCU.rst and checklist.rst for recent RCU API additions
- Fix RCU documentation formatting and typos
- Replace dead Ottawa Linux Symposium links in RTFP.txt
Miscellaneous RCU updates:
- Document that rcu_barrier() hurries RCU_LAZY callbacks
- Remove redundant interrupt disabling from
rcu_preempt_deferred_qs_handler()
- Move list_for_each_rcu from list.h to rculist.h, and adjust the
include directive in kernel/cgroup/dmem.c accordingly
- Make initial set of changes to accommodate upcoming
system_percpu_wq changes
SRCU updates:
- Create an srcu_read_lock_fast_notrace() for eventual use in
tracing, including adding guards
- Document the reliance on per-CPU operations as implicit RCU readers
in __srcu_read_{,un}lock_fast()
- Document the srcu_flip() function's memory-barrier D's relationship
to SRCU-fast readers
- Remove a redundant preempt_disable() and preempt_enable() pair from
srcu_gp_start_if_needed()
Torture-test updates:
- Fix jitter.sh spin time so that it actually varies as advertised.
It is still quite coarse-grained, but at least it does now vary
- Update torture.sh help text to include the not-so-new --do-normal
parameter, which permits (for example) testing KCSAN kernels
without doing non-debug kernels
- Fix a number of false-positive diagnostics that were being
triggered by rcutorture starting before boot completed. Running
multiple near-CPU-bound rcutorture processes when there is only the
boot CPU is after all a bit excessive
- Substitute kcalloc() for kzalloc()
- Remove a redundant kfree() and NULL out kfree()ed objects"
* tag 'rcu.2025.09.26a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (31 commits)
rcu: WQ_UNBOUND added to sync_wq workqueue
rcu: WQ_PERCPU added to alloc_workqueue users
rcu: replace use of system_wq with system_percpu_wq
refperf: Set reader_tasks to NULL after kfree()
refperf: Remove redundant kfree() after torture_stop_kthread()
srcu/tiny: Remove preempt_disable/enable() in srcu_gp_start_if_needed()
srcu: Document srcu_flip() memory-barrier D relation to SRCU-fast
srcu: Document __srcu_read_{,un}lock_fast() implicit RCU readers
rculist: move list_for_each_rcu() to where it belongs
refscale: Use kcalloc() instead of kzalloc()
rcutorture: Use kcalloc() instead of kzalloc()
docs: rcu: Replace multiple dead OLS links in RTFP.txt
doc: Fix typo in RCU's torture.rst documentation
Documentation: RCU: Retitle toctree index
Documentation: RCU: Reduce toctree depth
Documentation: RCU: Wrap kvm-remote.sh rerun snippet in literal code block
rcu: docs: Requirements.rst: Abide by conventions of kernel documentation
doc: Add RCU guards to checklist.rst
doc: Update whatisRCU.rst for recent RCU API additions
rcutorture: Delay forward-progress testing until boot completes
...
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The commit 1b8abbb12128 ("bpf...d_path(): constify path argument")
constified the first parameter of the bpf_d_path(), but failed to
update it in all places. Finish constification.
Otherwise the selftest fail to build:
.../selftests/bpf/bpf_experimental.h:222:12: error: conflicting types for 'bpf_path_d_path'
222 | extern int bpf_path_d_path(const struct path *path, char *buf, size_t buf__sz) __ksym;
| ^
.../selftests/bpf/tools/include/vmlinux.h:153922:12: note: previous declaration is here
153922 | extern int bpf_path_d_path(struct path *path, char *buf, size_t buf__sz) __weak __ksym;
Fixes: 1b8abbb12128 ("bpf...d_path(): constify path argument")
Signed-off-by: Rong Tao <rongtao@cestc.cn>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Pull kvm updates from Paolo Bonzini:
"This excludes the bulk of the x86 changes, which I will send
separately. They have two not complex but relatively unusual conflicts
so I will wait for other dust to settle.
guest_memfd:
- Add support for host userspace mapping of guest_memfd-backed memory
for VM types that do NOT use support KVM_MEMORY_ATTRIBUTE_PRIVATE
(which isn't precisely the same thing as CoCo VMs, since x86's
SEV-MEM and SEV-ES have no way to detect private vs. shared).
This lays the groundwork for removal of guest memory from the
kernel direct map, as well as for limited mmap() for
guest_memfd-backed memory.
For more information see:
- commit a6ad54137af9 ("Merge branch 'guest-memfd-mmap' into HEAD")
- guest_memfd in Firecracker:
https://github.com/firecracker-microvm/firecracker/tree/feature/secret-hiding
- direct map removal:
https://lore.kernel.org/all/20250221160728.1584559-1-roypat@amazon.co.uk/
- mmap support:
https://lore.kernel.org/all/20250328153133.3504118-1-tabba@google.com/
ARM:
- Add support for FF-A 1.2 as the secure memory conduit for pKVM,
allowing more registers to be used as part of the message payload.
- Change the way pKVM allocates its VM handles, making sure that the
privileged hypervisor is never tricked into using uninitialised
data.
- Speed up MMIO range registration by avoiding unnecessary RCU
synchronisation, which results in VMs starting much quicker.
- Add the dump of the instruction stream when panic-ing in the EL2
payload, just like the rest of the kernel has always done. This
will hopefully help debugging non-VHE setups.
- Add 52bit PA support to the stage-1 page-table walker, and make use
of it to populate the fault level reported to the guest on failing
to translate a stage-1 walk.
- Add NV support to the GICv3-on-GICv5 emulation code, ensuring
feature parity for guests, irrespective of the host platform.
- Fix some really ugly architecture problems when dealing with debug
in a nested VM. This has some bad performance impacts, but is at
least correct.
- Add enough infrastructure to be able to disable EL2 features and
give effective values to the EL2 control registers. This then
allows a bunch of features to be turned off, which helps cross-host
migration.
- Large rework of the selftest infrastructure to allow most tests to
transparently run at EL2. This is the first step towards enabling
NV testing.
- Various fixes and improvements all over the map, including one BE
fix, just in time for the removal of the feature.
LoongArch:
- Detect page table walk feature on new hardware
- Add sign extension with kernel MMIO/IOCSR emulation
- Improve in-kernel IPI emulation
- Improve in-kernel PCH-PIC emulation
- Move kvm_iocsr tracepoint out of generic code
RISC-V:
- Added SBI FWFT extension for Guest/VM with misaligned delegation
and pointer masking PMLEN features
- Added ONE_REG interface for SBI FWFT extension
- Added Zicbop and bfloat16 extensions for Guest/VM
- Enabled more common KVM selftests for RISC-V
- Added SBI v3.0 PMU enhancements in KVM and perf driver
s390:
- Improve interrupt cpu for wakeup, in particular the heuristic to
decide which vCPU to deliver a floating interrupt to.
- Clear the PTE when discarding a swapped page because of CMMA; this
bug was introduced in 6.16 when refactoring gmap code.
x86 selftests:
- Add #DE coverage in the fastops test (the only exception that's
guest- triggerable in fastop-emulated instructions).
- Fix PMU selftests errors encountered on Granite Rapids (GNR),
Sierra Forest (SRF) and Clearwater Forest (CWF).
- Minor cleanups and improvements
x86 (guest side):
- For the legacy PCI hole (memory between TOLUD and 4GiB) to UC when
overriding guest MTRR for TDX/SNP to fix an issue where ACPI
auto-mapping could map devices as WB and prevent the device drivers
from mapping their devices with UC/UC-.
- Make kvm_async_pf_task_wake() a local static helper and remove its
export.
- Use native qspinlocks when running in a VM with dedicated
vCPU=>pCPU bindings even when PV_UNHALT is unsupported.
Generic:
- Remove a redundant __GFP_NOWARN from kvm_setup_async_pf() as
__GFP_NOWARN is now included in GFP_NOWAIT.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (178 commits)
KVM: s390: Fix to clear PTE when discarding a swapped page
KVM: arm64: selftests: Cover ID_AA64ISAR3_EL1 in set_id_regs
KVM: arm64: selftests: Remove a duplicate register listing in set_id_regs
KVM: arm64: selftests: Cope with arch silliness in EL2 selftest
KVM: arm64: selftests: Add basic test for running in VHE EL2
KVM: arm64: selftests: Enable EL2 by default
KVM: arm64: selftests: Initialize HCR_EL2
KVM: arm64: selftests: Use the vCPU attr for setting nr of PMU counters
KVM: arm64: selftests: Use hyp timer IRQs when test runs at EL2
KVM: arm64: selftests: Select SMCCC conduit based on current EL
KVM: arm64: selftests: Provide helper for getting default vCPU target
KVM: arm64: selftests: Alias EL1 registers to EL2 counterparts
KVM: arm64: selftests: Create a VGICv3 for 'default' VMs
KVM: arm64: selftests: Add unsanitised helpers for VGICv3 creation
KVM: arm64: selftests: Add helper to check for VGICv3 support
KVM: arm64: selftests: Initialize VGICv3 only once
KVM: arm64: selftests: Provide kvm_arch_vm_post_create() in library code
KVM: selftests: Add ex_str() to print human friendly name of exception vectors
selftests/kvm: remove stale TODO in xapic_state_test
KVM: selftests: Handle Intel Atom errata that leads to PMU event overcount
...
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Pull VFIO updates from Alex Williamson:
- Use fdinfo to expose the sysfs path of a device represented by a vfio
device file (Alex Mastro)
- Mark vfio-fsl-mc, vfio-amba, and the reset functions for
vfio-platform for removal as these are either orphaned or believed to
be unused (Alex Williamson)
- Add reviewers for vfio-platform to save it from also being marked for
removal (Mostafa Saleh, Pranjal Shrivastava)
- VFIO selftests, including basic sanity testing and minimal userspace
drivers for testing against real hardware. This is also expected to
provide integration with KVM selftests for KVM-VFIO interfaces (David
Matlack, Josh Hilke)
- Fix drivers/cdx and vfio/cdx to build without CONFIG_GENERIC_MSI_IRQ
(Nipun Gupta)
- Fix reference leak in hisi_acc (Miaoqian Lin)
- Use consistent return for unsupported device feature (Alex Mastro)
- Unwind using the correct memory free callback in vfio/pds (Zilin
Guan)
- Use IRQ_DISABLE_LAZY flag to improve handling of pre-PCI2.3 INTx and
resolve stalled interrupt on ppc64 (Timothy Pearson)
- Enable GB300 in nvgrace-gpu vfio-pci variant driver (Tushar Dave)
- Misc:
- Drop unnecessary ternary conversion in vfio/pci (Xichao Zhao)
- Grammatical fix in nvgrace-gpu (Morduan Zang)
- Update Shameer's email address (Shameer Kolothum)
- Fix document build warning (Alex Williamson)
* tag 'vfio-v6.18-rc1' of https://github.com/awilliam/linux-vfio: (48 commits)
vfio/nvgrace-gpu: Add GB300 SKU to the devid table
vfio/pci: Fix INTx handling on legacy non-PCI 2.3 devices
vfio/pds: replace bitmap_free with vfree
vfio: return -ENOTTY for unsupported device feature
hisi_acc_vfio_pci: Fix reference leak in hisi_acc_vfio_debug_init
vfio/platform: Mark reset drivers for removal
vfio/amba: Mark for removal
MAINTAINERS: Add myself as VFIO-platform reviewer
MAINTAINERS: Add myself as VFIO-platform reviewer
docs: proc.rst: Fix VFIO Device title formatting
vfio: selftests: Fix .gitignore for already tracked files
vfio/cdx: update driver to build without CONFIG_GENERIC_MSI_IRQ
cdx: don't select CONFIG_GENERIC_MSI_IRQ
MAINTAINERS: Update Shameer Kolothum's email address
vfio: selftests: Add a script to help with running VFIO selftests
vfio: selftests: Make iommufd the default iommu_mode
vfio: selftests: Add iommufd mode
vfio: selftests: Add iommufd_compat_type1{,v2} modes
vfio: selftests: Add vfio_type1v2_mode
vfio: selftests: Replicate tests across all iommu_modes
...
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Pull bpf fixes from Alexei Starovoitov:
- Fix selftests/bpf (typo, conflicts) and unbreak BPF CI (Jiri Olsa)
- Remove linux/unaligned.h dependency for libbpf_sha256 (Andrii
Nakryiko) and add a test (Eric Biggers)
- Reject negative offsets for ALU operations in the verifier (Yazhou
Tang) and add a test (Eduard Zingerman)
- Skip scalar adjustment for BPF_NEG operation if destination register
is a pointer (Brahmajit Das) and add a test (KaFai Wan)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
libbpf: Fix missing #pragma in libbpf_utils.c
selftests/bpf: Add tests for rejection of ALU ops with negative offsets
selftests/bpf: Add test for libbpf_sha256()
bpf: Reject negative offsets for ALU ops
libbpf: remove linux/unaligned.h dependency for libbpf_sha256()
libbpf: move libbpf_sha256() implementation into libbpf_utils.c
libbpf: move libbpf_errstr() into libbpf_utils.c
libbpf: remove unused libbpf_strerror_r and STRERR_BUFSIZE
libbpf: make libbpf_errno.c into more generic libbpf_utils.c
selftests/bpf: Add test for BPF_NEG alu on CONST_PTR_TO_MAP
bpf: Skip scalar adjustment for BPF_NEG if dst is a pointer
selftests/bpf: Fix realloc size in bpf_get_addrs
selftests/bpf: Fix typo in subtest_basic_usdt after merge conflict
selftests/bpf: Fix open-coded gettid syscall in uprobe syscall tests
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git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"Two minor fixes:
- Make the selftest work again on x86 platforms with iommus enabled
- Fix a compiler warning in the userspace kselftest"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd: Register iommufd mock devices with fwspec
iommu/selftest: prevent use of uninitialized variable
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git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping updates from Marek Szyprowski:
- Refactoring of DMA mapping API to physical addresses as the primary
interface instead of page+offset parameters
This gets much closer to Matthew Wilcox's long term wish for
struct-pageless IO to cacheable DRAM and is supporting memdesc
project which seeks to substantially transform how struct page works.
An advantage of this approach is the possibility of introducing
DMA_ATTR_MMIO, which covers existing 'dma_map_resource' flow in the
common paths, what in turn lets to use recently introduced
dma_iova_link() API to map PCI P2P MMIO without creating struct page
Developped by Leon Romanovsky and Jason Gunthorpe
- Minor clean-up by Petr Tesarik and Qianfeng Rong
* tag 'dma-mapping-6.18-2025-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
kmsan: fix missed kmsan_handle_dma() signature conversion
mm/hmm: properly take MMIO path
mm/hmm: migrate to physical address-based DMA mapping API
dma-mapping: export new dma_*map_phys() interface
xen: swiotlb: Open code map_resource callback
dma-mapping: implement DMA_ATTR_MMIO for dma_(un)map_page_attrs()
kmsan: convert kmsan_handle_dma to use physical addresses
dma-mapping: convert dma_direct_*map_page to be phys_addr_t based
iommu/dma: implement DMA_ATTR_MMIO for iommu_dma_(un)map_phys()
iommu/dma: rename iommu_dma_*map_page to iommu_dma_*map_phys
dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
dma-debug: refactor to use physical addresses for page mapping
iommu/dma: implement DMA_ATTR_MMIO for dma_iova_link().
dma-mapping: introduce new DMA attribute to indicate MMIO memory
swiotlb: Remove redundant __GFP_NOWARN
dma-direct: clean up the logic in __dma_direct_alloc_pages()
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Pull documentation updates from Jonathan Corbet:
"It has been a relatively busy cycle in docsland, with changes all
over:
- Bring the kernel memory-model docs into the Sphinx build in the
"literal include" mode.
- Lots of build-infrastructure work, further cleaning up long-term
kernel-doc technical debt. The sphinx-pre-install tool has been
converted to Python and updated for current systems.
- A new tool to detect when documents have been moved and generate
HTML redirects; this can be used on kernel.org (or any other site
hosting the rendered docs) to avoid breaking links.
- Automated processing of the YAML files describing the netlink
protocol.
- A significant update of the maintainer's PGP guide.
... and a seemingly endless series of typo fixes, build-problem fixes,
etc"
* tag 'docs-6.18' of git://git.lwn.net/linux: (193 commits)
Documentation/features: Update feature lists for 6.17-rc7
docs: remove cdomain.py
Documentation/process: submitting-patches: fix typo in "were do"
docs: dev-tools/lkmm: Fix typo of missing file extension
Documentation: trace: histogram: Convert ftrace docs cross-reference
Documentation: trace: histogram-design: Wrap introductory note in note:: directive
Documentation: trace: historgram-design: Separate sched_waking histogram section heading and the following diagram
Documentation: trace: histogram-design: Trim trailing vertices in diagram explanation text
Documentation: trace: histogram: Fix histogram trigger subsection number order
docs: driver-api: fix spelling of "buses".
Documentation: fbcon: Use admonition directives
Documentation: fbcon: Reindent 8th step of attach/detach/unload
Documentation: fbcon: Add boot options and attach/detach/unload section headings
docs: filesystems: sysfs: add remaining top level sysfs directory descriptions
docs: filesystems: sysfs: clarify symlink destinations in dev and bus/devices descriptions
docs: filesystems: sysfs: remove top level sysfs net directory
docs: maintainer: Fix ambiguous subheading formatting
docs: kdoc: a few more dump_typedef() tweaks
docs: kdoc: remove redundant comment stripping in dump_typedef()
docs: kdoc: remove some dead code in dump_typedef()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull file->f_path constification from Al Viro:
"Only one thing was modifying ->f_path of an opened file - acct(2).
Massaging that away and constifying a bunch of struct path * arguments
in functions that might be given &file->f_path ends up with the
situation where we can turn ->f_path into an anon union of const
struct path f_path and struct path __f_path, the latter modified only
in a few places in fs/{file_table,open,namei}.c, all for struct file
instances that are yet to be opened"
* tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (23 commits)
Have cc(1) catch attempts to modify ->f_path
kernel/acct.c: saner struct file treatment
configfs:get_target() - release path as soon as we grab configfs_item reference
apparmor/af_unix: constify struct path * arguments
ovl_is_real_file: constify realpath argument
ovl_sync_file(): constify path argument
ovl_lower_dir(): constify path argument
ovl_get_verity_digest(): constify path argument
ovl_validate_verity(): constify {meta,data}path arguments
ovl_ensure_verity_loaded(): constify datapath argument
ksmbd_vfs_set_init_posix_acl(): constify path argument
ksmbd_vfs_inherit_posix_acl(): constify path argument
ksmbd_vfs_kern_path_unlock(): constify path argument
ksmbd_vfs_path_lookup_locked(): root_share_path can be const struct path *
check_export(): constify path argument
export_operations->open(): constify path argument
rqst_exp_get_by_name(): constify path argument
nfs: constify path argument of __vfs_getattr()
bpf...d_path(): constify path argument
done_path_create(): constify path argument
...
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Metrics may generate many particularly uncore event references. The
resulting event string may then be >32kb. The parse events lex is
using "%option reject" which stores backtracking state in a buffer
sized at roughtly 30kb. If the event string is larger than this then a
buffer overflow and typically a crash happens.
The need for "%option reject" was for BPF events which were removed in
commit 3d6dfae88917 ("perf parse-events: Remove BPF event
support"). As "%option reject" is both a memory and performance cost
let's remove it and fix the parsing case for event strings being over
~30kb.
Whilst cleaning up "%option reject" make the header files accurately
reflect functions used in the code and tidy up not requiring yywrap.
Measuring on the "PMU JSON event tests" a modest reduction of 0.41%
user time and 0.27% max resident size was observed. More importantly
this change fixes parsing large metrics and event strings.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Include event parsing and regression tests for auto counter reload
and ratio-to-prev event term.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Falcon <thomas.falcon@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Provide ratio-to-prev term which allows the user to
set the event sample period of two events corresponding
to a desired ratio.
If using on an Intel x86 platform with Auto Counter Reload support, also
set corresponding event's config2 attribute with a bitmask which
counters to reset and which counters to sample if the desired ratio is
met or exceeded.
On other platforms, only the sample period is affected by the
ratio-to-prev term.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Falcon <thomas.falcon@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The feature test is unnecessary as the LIBBPF_CURRENT_VERSION_GEQ(1,7)
macro can be used instead. The only use was in perf and this is now
removed.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The feature check guarded the -DHAVE_LIBBPF_STRINGS_SUPPORT is
unnecessary as it is sufficient and easier to use the
LIBBPF_CURRENT_VERSION_GEQ macro.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The disasm feature tests feature-disassembler-four-args and
feature-disassembler-init-styled link against libopcodes part of
binutils which is license incompatible (GPLv3) with perf. Moving these
tests out of the common config will help improve build time.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Added in commit cbefd24f0aee3a5d ("tools build: Add test to check if
slang.h is in /usr/include/slang/") this feature was to fix build
support on now unsupported versions of RHEL 5 and 6. As 6 years has
passed let's remove the workaround.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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TSR_KIND_POINTER only represents percpu pointers currently. Rename it to
TSR_KIND_PERCPU_POINTER so we can use the TSR_KIND_POINTER to represent
pointer to a type.
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Zecheng Li <zecheng@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xu Liu <xliuprof@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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For the sake of Intel topdown events commit 9eac5612da1c9102 ("perf
stat: Don't skip failing group events") changed 'perf stat' error
handling making it so that more errors were fatal and didn't report
"<not supported>" events. The change outside of topdown events was
unintentional.
The notion of "fatal" error handling was introduced in commit
e0e6a6ca3ac211cc ("perf stat: Factor out open error handling") and
refined in commits like commit cb5ef60067c11cc8 ("perf stat: Error out
unsupported group leader immediately") to be an approach for avoiding
later assertion failures in the code base.
This change fixes those issues and removes the notion of a fatal error
on an event. If all events fail to open then a fatal error occurs with
the previous fatal error message. This seems to best match the notion of
supported events and allowing some errors not to stop 'perf stat', while
allowing the truly fatal no event case to terminate the tool early.
The evsel->errored flag is only used in the stat code but always just
meaning !evsel->supported although there is a comment about it being
sticky. Force all evsels to be supported in evsel__init and then clear
this when evsel__open fails. When an event is tried the supported is
set to true again. This simplifies the notion of whether an evsel is
broken.
In the get_group_fd code, fail to get a group fd when the evsel isn't
supported. If the leader isn't supported then it is also expected that
there is no group_fd as the leader will have been skipped. Therefore
change the BUG_ON test to be on supported rather than skippable. This
corrects the assertion errors that were the reason for the previous
fatal error handling.
Fixes: 9eac5612da1c9102 ("perf stat: Don't skip failing group events")
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20251002220727.1889799-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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The function create_perf_stat_counter is only used in builtin-stat.c
and contains logic about retrying events specific to
builtin-stat.c.
Move the code to builtin-stat.c to tidy this up.
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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As perf no longer tests for this feature, and it was the only user,
remove the feature test.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
[ Remove the call to main_test_get_current_dir_name() from main() in test-all.c, otherwise it will always fail ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Extend copy_file_range interface to be fully 64bit capable (Miklos)
- Add selftest for fusectl (Chen Linxuan)
- Move fuse docs into a separate directory (Bagas Sanjaya)
- Allow fuse to enter freezable state in some cases (Sergey
Senozhatsky)
- Clean up writeback accounting after removing tmp page copies (Joanne)
- Optimize virtiofs request handling (Li RongQing)
- Add synchronous FUSE_INIT support (Miklos)
- Allow server to request prune of unused inodes (Miklos)
- Fix deadlock with AIO/sync release (Darrick)
- Add some prep patches for block/iomap support (Darrick)
- Misc fixes and cleanups
* tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (26 commits)
fuse: move CREATE_TRACE_POINTS to a separate file
fuse: move the backing file idr and code into a new source file
fuse: enable FUSE_SYNCFS for all fuseblk servers
fuse: capture the unique id of fuse commands being sent
fuse: fix livelock in synchronous file put from fuseblk workers
mm: fix lockdep issues in writeback handling
fuse: add prune notification
fuse: remove redundant calls to fuse_copy_finish() in fuse_notify()
fuse: fix possibly missing fuse_copy_finish() call in fuse_notify()
fuse: remove FUSE_NOTIFY_CODE_MAX from <uapi/linux/fuse.h>
fuse: remove fuse_readpages_end() null mapping check
fuse: fix references to fuse.rst -> fuse/fuse.rst
fuse: allow synchronous FUSE_INIT
fuse: zero initialize inode private data
fuse: remove unused 'inode' parameter in fuse_passthrough_open
virtio_fs: fix the hash table using in virtio_fs_enqueue_req()
mm: remove BDI_CAP_WRITEBACK_ACCT
fuse: use default writeback accounting
virtio_fs: Remove redundant spinlock in virtio_fs_request_complete()
fuse: remove unneeded offset assignment when filling write pages
...
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Remove duplicate entry for thermal_init and add the missing entries for
thermal_exit and their respectives in cmd, events, and sampling context.
Signed-off-by: Emil Dahl Juhl <juhl.emildahl@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Instead of preserving mode, timestamp, and owner, for the object files
during installation, just preserve the mode and timestamp.
When installing as root, the installed files should be owned by root.
When installing as user, --preserve=ownership doesn't work anyway. This
makes --preserve=ownership rather pointless.
Signed-off-by: Emil Dahl Juhl <juhl.emildahl@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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To make libthermal more cross compile friendly use pkg-config to locate
libnl3. Only if that fails fall back to hardcoded /usr/include/libnl3.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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get_current_dir_name is a GNU extension not supported on, for example,
Android. There is only one use of it so let's just switch to getcwd to
avoid build and other complexity.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ida: Remove the ida_simple_xxx() API" from Christophe Jaillet
completes the removal of this legacy IDR API
- "panic: introduce panic status function family" from Jinchao Wang
provides a number of cleanups to the panic code and its various
helpers, which were rather ad-hoc and scattered all over the place
- "tools/delaytop: implement real-time keyboard interaction support"
from Fan Yu adds a few nice user-facing usability changes to the
delaytop monitoring tool
- "efi: Fix EFI boot with kexec handover (KHO)" from Evangelos
Petrongonas fixes a panic which was happening with the combination of
EFI and KHO
- "Squashfs: performance improvement and a sanity check" from Phillip
Lougher teaches squashfs's lseek() about SEEK_DATA/SEEK_HOLE. A mere
150x speedup was measured for a well-chosen microbenchmark
- plus another 50-odd singleton patches all over the place
* tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (75 commits)
Squashfs: reject negative file sizes in squashfs_read_inode()
kallsyms: use kmalloc_array() instead of kmalloc()
MAINTAINERS: update Sibi Sankar's email address
Squashfs: add SEEK_DATA/SEEK_HOLE support
Squashfs: add additional inode sanity checking
lib/genalloc: fix device leak in of_gen_pool_get()
panic: remove CONFIG_PANIC_ON_OOPS_VALUE
ocfs2: fix double free in user_cluster_connect()
checkpatch: suppress strscpy warnings for userspace tools
cramfs: fix incorrect physical page address calculation
kernel: prevent prctl(PR_SET_PDEATHSIG) from racing with parent process exit
Squashfs: fix uninit-value in squashfs_get_parent
kho: only fill kimage if KHO is finalized
ocfs2: avoid extra calls to strlen() after ocfs2_sprintf_system_inode_name()
kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
sched/task.h: fix the wrong comment on task_lock() nesting with tasklist_lock
coccinelle: platform_no_drv_owner: handle also built-in drivers
coccinelle: of_table: handle SPI device ID tables
lib/decompress: use designated initializers for struct compress_format
efi: support booting with kexec handover (KHO)
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "mm, swap: improve cluster scan strategy" from Kairui Song improves
performance and reduces the failure rate of swap cluster allocation
- "support large align and nid in Rust allocators" from Vitaly Wool
permits Rust allocators to set NUMA node and large alignment when
perforning slub and vmalloc reallocs
- "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend
DAMOS_STAT's handling of the DAMON operations sets for virtual
address spaces for ops-level DAMOS filters
- "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren
Baghdasaryan reduces mmap_lock contention during reads of
/proc/pid/maps
- "mm/mincore: minor clean up for swap cache checking" from Kairui Song
performs some cleanup in the swap code
- "mm: vm_normal_page*() improvements" from David Hildenbrand provides
code cleanup in the pagemap code
- "add persistent huge zero folio support" from Pankaj Raghav provides
a block layer speedup by optionalls making the
huge_zero_pagepersistent, instead of releasing it when its refcount
falls to zero
- "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to
the recently added Kexec Handover feature
- "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo
Stoakes turns mm_struct.flags into a bitmap. To end the constant
struggle with space shortage on 32-bit conflicting with 64-bit's
needs
- "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap
code
- "selftests/mm: Fix false positives and skip unsupported tests" from
Donet Tom fixes a few things in our selftests code
- "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised"
from David Hildenbrand "allows individual processes to opt-out of
THP=always into THP=madvise, without affecting other workloads on the
system".
It's a long story - the [1/N] changelog spells out the considerations
- "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on
the memdesc project. Please see
https://kernelnewbies.org/MatthewWilcox/Memdescs and
https://blogs.oracle.com/linux/post/introducing-memdesc
- "Tiny optimization for large read operations" from Chi Zhiling
improves the efficiency of the pagecache read path
- "Better split_huge_page_test result check" from Zi Yan improves our
folio splitting selftest code
- "test that rmap behaves as expected" from Wei Yang adds some rmap
selftests
- "remove write_cache_pages()" from Christoph Hellwig removes that
function and converts its two remaining callers
- "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD
selftests issues
- "introduce kernel file mapped folios" from Boris Burkov introduces
the concept of "kernel file pages". Using these permits btrfs to
account its metadata pages to the root cgroup, rather than to the
cgroups of random inappropriate tasks
- "mm/pageblock: improve readability of some pageblock handling" from
Wei Yang provides some readability improvements to the page allocator
code
- "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON
to understand arm32 highmem
- "tools: testing: Use existing atomic.h for vma/maple tests" from
Brendan Jackman performs some code cleanups and deduplication under
tools/testing/
- "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes
a couple of 32-bit issues in tools/testing/radix-tree.c
- "kasan: unify kasan_enabled() and remove arch-specific
implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific
initialization code into a common arch-neutral implementation
- "mm: remove zpool" from Johannes Weiner removes zspool - an
indirection layer which now only redirects to a single thing
(zsmalloc)
- "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a
couple of cleanups in the fork code
- "mm: remove nth_page()" from David Hildenbrand makes rather a lot of
adjustments at various nth_page() callsites, eventually permitting
the removal of that undesirable helper function
- "introduce kasan.write_only option in hw-tags" from Yeoreum Yun
creates a KASAN read-only mode for ARM, using that architecture's
memory tagging feature. It is felt that a read-only mode KASAN is
suitable for use in production systems rather than debug-only
- "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does
some tidying in the hugetlb folio allocation code
- "mm: establish const-correctness for pointer parameters" from Max
Kellermann makes quite a number of the MM API functions more accurate
about the constness of their arguments. This was getting in the way
of subsystems (in this case CEPH) when they attempt to improving
their own const/non-const accuracy
- "Cleanup free_pages() misuse" from Vishal Moola fixes a number of
code sites which were confused over when to use free_pages() vs
__free_pages()
- "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the
mapletree code accessible to Rust. Required by nouveau and by its
forthcoming successor: the new Rust Nova driver
- "selftests/mm: split_huge_page_test: split_pte_mapped_thp
improvements" from David Hildenbrand adds a fix and some cleanups to
the thp selftesting code
- "mm, swap: introduce swap table as swap cache (phase I)" from Chris
Li and Kairui Song is the first step along the path to implementing
"swap tables" - a new approach to swap allocation and state tracking
which is expected to yield speed and space improvements. This
patchset itself yields a 5-20% performance benefit in some situations
- "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc
layer to clean up the ptdesc code a little
- "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some
issues in our 5-level pagetable selftesting code
- "Minor fixes for memory allocation profiling" from Suren Baghdasaryan
addresses a couple of minor issues in relatively new memory
allocation profiling feature
- "Small cleanups" from Matthew Wilcox has a few cleanups in
preparation for more memdesc work
- "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from
Quanmin Yan makes some changes to DAMON in furtherance of supporting
arm highmem
- "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad
Anjum adds that compiler check to selftests code and fixes the
fallout, by removing dead code
- "Improvements to Victim Process Thawing and OOM Reaper Traversal
Order" from zhongjinji makes a number of improvements in the OOM
killer: mainly thawing a more appropriate group of victim threads so
they can release resources
- "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park
is a bunch of small and unrelated fixups for DAMON
- "mm/damon: define and use DAMON initialization check function" from
SeongJae Park implement reliability and maintainability improvements
to a recently-added bug fix
- "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from
SeongJae Park provides additional transparency to userspace clients
of the DAMON_STAT information
- "Expand scope of khugepaged anonymous collapse" from Dev Jain removes
some constraints on khubepaged's collapsing of anon VMAs. It also
increases the success rate of MADV_COLLAPSE against an anon vma
- "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()"
from Lorenzo Stoakes moves us further towards removal of
file_operations.mmap(). This patchset concentrates upon clearing up
the treatment of stacked filesystems
- "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau
provides some fixes and improvements to mlock's tracking of large
folios. /proc/meminfo's "Mlocked" field became more accurate
- "mm/ksm: Fix incorrect accounting of KSM counters during fork" from
Donet Tom fixes several user-visible KSM stats inaccuracies across
forks and adds selftest code to verify these counters
- "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses
some potential but presently benign issues in KSM's mm_slot handling
* tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits)
mm: swap: check for stable address space before operating on the VMA
mm: convert folio_page() back to a macro
mm/khugepaged: use start_addr/addr for improved readability
hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list
alloc_tag: fix boot failure due to NULL pointer dereference
mm: silence data-race in update_hiwater_rss
mm/memory-failure: don't select MEMORY_ISOLATION
mm/khugepaged: remove definition of struct khugepaged_mm_slot
mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL
hugetlb: increase number of reserving hugepages via cmdline
selftests/mm: add fork inheritance test for ksm_merging_pages counter
mm/ksm: fix incorrect KSM counter handling in mm_struct during fork
drivers/base/node: fix double free in register_one_node()
mm: remove PMD alignment constraint in execmem_vmalloc()
mm/memory_hotplug: fix typo 'esecially' -> 'especially'
mm/rmap: improve mlock tracking for large folios
mm/filemap: map entire large folio faultaround
mm/fault: try to map the entire file folio in finish_fault()
mm/rmap: mlock large folios in try_to_unmap_one()
mm/rmap: fix a mlock race condition in folio_referenced_one()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- A new layer for caching objects for allocation and free via percpu
arrays called sheaves.
The aim is to combine the good parts of SLAB (lower-overhead and
simpler percpu caching, compared to SLUB) without the past issues
with arrays for freeing remote NUMA node objects and their flushing.
It also allows more efficient kfree_rcu(), and cheaper object
preallocations for cases where the exact number of objects is
unknown, but an upper bound is.
Currently VMAs and maple nodes are using this new caching, with a
plan to enable it for all caches and remove the complex SLUB fastpath
based on cpu (partial) slabs and this_cpu_cmpxchg_double().
(Vlastimil Babka, with Liam Howlett and Pedro Falcato for the maple
tree changes)
- Re-entrant kmalloc_nolock(), which allows opportunistic allocations
from NMI and tracing/kprobe contexts.
Building on prior page allocator and memcg changes, it will result in
removing BPF-specific caches on top of slab (Alexei Starovoitov)
- Various fixes and cleanups. (Kuan-Wei Chiu, Matthew Wilcox, Suren
Baghdasaryan, Ye Liu)
* tag 'slab-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (40 commits)
slab: Introduce kmalloc_nolock() and kfree_nolock().
slab: Reuse first bit for OBJEXTS_ALLOC_FAIL
slab: Make slub local_(try)lock more precise for LOCKDEP
mm: Introduce alloc_frozen_pages_nolock()
mm: Allow GFP_ACCOUNT to be used in alloc_pages_nolock().
locking/local_lock: Introduce local_lock_is_locked().
maple_tree: Convert forking to use the sheaf interface
maple_tree: Add single node allocation support to maple state
maple_tree: Prefilled sheaf conversion and testing
tools/testing: Add support for prefilled slab sheafs
maple_tree: Replace mt_free_one() with kfree()
maple_tree: Use kfree_rcu in ma_free_rcu
testing/radix-tree/maple: Hack around kfree_rcu not existing
tools/testing: include maple-shim.c in maple.c
maple_tree: use percpu sheaves for maple_node_cache
mm, vma: use percpu sheaves for vm_area_struct cache
tools/testing: Add support for changes to slab for sheaves
slab: allow NUMA restricted allocations to use percpu sheaves
tools/testing/vma: Implement vm_refcnt reset
slab: skip percpu sheaves for remote object freeing
...
|
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core & protocols:
- Improve drop account scalability on NUMA hosts for RAW and UDP
sockets and the backlog, almost doubling the Pps capacity under DoS
- Optimize the UDP RX performance under stress, reducing contention,
revisiting the binary layout of the involved data structs and
implementing NUMA-aware locking. This improves UDP RX performance
by an additional 50%, even more under extreme conditions
- Add support for PSP encryption of TCP connections; this mechanism
has some similarities with IPsec and TLS, but offers superior HW
offloads capabilities
- Ongoing work to support Accurate ECN for TCP. AccECN allows more
than one congestion notification signal per RTT and is a building
block for Low Latency, Low Loss, and Scalable Throughput (L4S)
- Reorganize the TCP socket binary layout for data locality, reducing
the number of touched cachelines in the fastpath
- Refactor skb deferral free to better scale on large multi-NUMA
hosts, this improves TCP and UDP RX performances significantly on
such HW
- Increase the default socket memory buffer limits from 256K to 4M to
better fit modern link speeds
- Improve handling of setups with a large number of nexthop, making
dump operating scaling linearly and avoiding unneeded
synchronize_rcu() on delete
- Improve bridge handling of VLAN FDB, storing a single entry per
bridge instead of one entry per port; this makes the dump order of
magnitude faster on large switches
- Restore IP ID correctly for encapsulated packets at GSO
segmentation time, allowing GRO to merge packets in more scenarios
- Improve netfilter matching performance on large sets
- Improve MPTCP receive path performance by leveraging recently
introduced core infrastructure (skb deferral free) and adopting
recent TCP autotuning changes
- Allow bridges to redirect to a backup port when the bridge port is
administratively down
- Introduce MPTCP 'laminar' endpoint that con be used only once per
connection and simplify common MPTCP setups
- Add RCU safety to dst->dev, closing a lot of possible races
- A significant crypto library API for SCTP, MPTCP and IPv6 SR,
reducing code duplication
- Supports pulling data from an skb frag into the linear area of an
XDP buffer
Things we sprinkled into general kernel code:
- Generate netlink documentation from YAML using an integrated YAML
parser
Driver API:
- Support using IPv6 Flow Label in Rx hash computation and RSS queue
selection
- Introduce API for fetching the DMA device for a given queue,
allowing TCP zerocopy RX on more H/W setups
- Make XDP helpers compatible with unreadable memory, allowing more
easily building DevMem-enabled drivers with a unified XDP/skbs
datapath
- Add a new dedicated ethtool callback enabling drivers to provide
the number of RX rings directly, improving efficiency and clarity
in RX ring queries and RSS configuration
- Introduce a burst period for the health reporter, allowing better
handling of multiple errors due to the same root cause
- Support for DPLL phase offset exponential moving average,
controlling the average smoothing factor
Device drivers:
- Add a new Huawei driver for 3rd gen NIC (hinic3)
- Add a new SpacemiT driver for K1 ethernet MAC
- Add a generic abstraction for shared memory communication
devices (dibps)
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- Use multiple per-queue doorbell, to avoid MMIO contention
issues
- support adjacent functions, allowing them to delegate their
SR-IOV VFs to sibling PFs
- support RSS for IPSec offload
- support exposing raw cycle counters in PTP and mlx5
- support for disabling host PFs.
- Intel (100G, ice, idpf):
- ice: support for SRIOV VFs over an Active-Active link
aggregate
- ice: support for firmware logging via debugfs
- ice: support for Earliest TxTime First (ETF) hardware offload
- idpf: support basic XDP functionalities and XSk
- Broadcom (bnxt):
- support Hyper-V VF ID
- dynamic SRIOV resource allocations for RoCE
- Meta (fbnic):
- support queue API, zero-copy Rx and Tx
- support basic XDP functionalities
- devlink health support for FW crashes and OTP mem corruptions
- expand hardware stats coverage to FEC, PHY, and Pause
- Wangxun:
- support ethtool coalesce options
- support for multiple RSS contexts
- Ethernet virtual:
- Macsec:
- replace custom netlink attribute checks with policy-level
checks
- Bonding:
- support aggregator selection based on port priority
- Microsoft vNIC:
- use page pool fragments for RX buffers instead of full pages
to improve memory efficiency
- Ethernet NICs consumer, and embedded:
- Qualcomm: support Ethernet function for IPQ9574 SoC
- Airoha: implement wlan offloading via NPU
- Freescale
- enetc: add NETC timer PTP driver and add PTP support
- fec: enable the Jumbo frame support for i.MX8QM
- Renesas (R-Car S4):
- support HW offloading for layer 2 switching
- support for RZ/{T2H, N2H} SoCs
- Cadence (macb): support TAPRIO traffic scheduling
- TI:
- support for Gigabit ICSS ethernet SoC (icssm-prueth)
- Synopsys (stmmac): a lot of cleanups
- Ethernet PHYs:
- Support 10g-qxgmi phy-mode for AQR412C, Felix DSA and Lynx PCS
driver
- Support bcm63268 GPHY power control
- Support for Micrel lan8842 PHY and PTP
- Support for Aquantia AQR412 and AQR115
- CAN:
- a large CAN-XL preparation work
- reorganize raw_sock and uniqframe struct to minimize memory
usage
- rcar_canfd: update the CAN-FD handling
- WiFi:
- extended Neighbor Awareness Networking (NAN) support
- S1G channel representation cleanup
- improve S1G support
- WiFi drivers:
- Intel (iwlwifi):
- major refactor and cleanup
- Broadcom (brcm80211):
- support for AP isolation
- RealTek (rtw88/89) rtw88/89:
- preparation work for RTL8922DE support
- MediaTek (mt76):
- HW restart improvements
- MLO support
- Qualcomm/Atheros (ath10k):
- GTK rekey fixes
- Bluetooth drivers:
- btusb: support for several new IDs for MT7925
- btintel: support for BlazarIW core
- btintel_pcie: support for _suspend() / _resume()
- btintel_pcie: support for Scorpious, Panther Lake-H484 IDs"
* tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1536 commits)
net: stmmac: Add support for Allwinner A523 GMAC200
dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible
Revert "Documentation: net: add flow control guide and document ethtool API"
octeontx2-pf: fix bitmap leak
octeontx2-vf: fix bitmap leak
net/mlx5e: Use extack in set rxfh callback
net/mlx5e: Introduce mlx5e_rss_params for RSS configuration
net/mlx5e: Introduce mlx5e_rss_init_params
net/mlx5e: Remove unused mdev param from RSS indir init
net/mlx5: Improve QoS error messages with actual depth values
net/mlx5e: Prevent entering switchdev mode with inconsistent netns
net/mlx5: HWS, Generalize complex matchers
net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs
selftests/net: add tcp_port_share to .gitignore
Revert "net/mlx5e: Update and set Xon/Xoff upon MTU set"
net: add NUMA awareness to skb_attempt_defer_free()
net: use llist for sd->defer_list
net: make softnet_data.defer_count an atomic
selftests: drv-net: psp: add tests for destroying devices
selftests: drv-net: psp: add test for auto-adjusting TCP MSS
...
|
|
The recent sha256 patch uses a GCC pragma to suppress compile errors for
a packed struct, but omits a needed pragma (see related link) and thus
still raises errors: (e.g. on GCC 12.3 armhf)
libbpf_utils.c:153:29: error: packed attribute causes inefficient alignment for ‘__val’ [-Werror=attributes]
153 | struct __packed_u32 { __u32 __val; } __attribute__((packed));
| ^~~~~
Resolve by adding the GCC diagnostic pragma to ignore "-Wattributes".
Link: https://lore.kernel.org/bpf/CAP-5=fXURWoZu2j6Y8xQy23i7=DfgThq3WC1RkGFBx-4moQKYQ@mail.gmail.com/
Fixes: 4a1c9e544b8d ("libbpf: remove linux/unaligned.h dependency for libbpf_sha256()")
Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
Define a simple program using MOD, DIV, ADD instructions,
make sure that the program is rejected if invalid offset
field is used for instruction.
These are test cases for
commit 55c0ced59fe1 ("bpf: Reject negative offsets for ALU ops")
Link: https://lore.kernel.org/all/tencent_70D024BAE70A0A309A4781694C7B764B0608@qq.com/
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
open_capstone_handle is similar to capstone_init and used only by
symbol__disassemble_capstone. symbol__disassemble_capstone_powerpc
already uses capstone_init, transition symbol__disassemble_capstone
and eliminate open_capstone_handle.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Move symbolization and srcline libbfd dependencies to a separate
libbfd.c. This mirrors moving llvm and capstone code. While this code
is deprecated as it is part of BUILD_NONDISTRO license incompatible
code, moving the code to its own file minimizes disruption in the main
files.
disasm_bpf.c is moved to libbfd.c also except for
symbol__disassemble_bpf_image which is currently more of a placeholder
function rather than something that provides disassembly support.
demangle-cxx.cpp code isn't migrated as it is very limited.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
LLVM disassembly support was in disasm.c and addr2line support in
srcline.c. Move support out of these files into llvm.[ch] and remove
LLVM includes from those files. As disassembly routines can fail, make
failure the only option without HAVE_LIBLLVM_SUPPORT. For simplicity's
sake, duplicate the read_symbol utility function.
The intent with moving LLVM support into a single file is that dynamic
support, using dlopen for libllvm, can be added in later patches. This
can potentially always succeed or fail, so relying on ifdefs isn't
sufficient. Using dlopen is a useful option to minimize the perf tools
dependencies and potentially size.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support"
* tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (454 commits)
ALSA: usb-audio: don't hardcode gain for output channel of Presonus Studio
ALSA: usb-audio: add the initial mix for Presonus Studio 1824c
ALSA: doc: improved docs about quirk_flags in snd-usb-audio
ALSA: usb-audio: make param quirk_flags change-able in runtime
ALSA: usb-audio: improve module param quirk_flags
ALSA: usb-audio: add two-way convert between name and bit for QUIRK_FLAG_*
ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
ALSA: usb-audio: add mono main switch to Presonus S1824c
ALSA: compress: document 'chan_map' member in snd_dec_opus
ASoC: cs35l56: Add support for CS35L56 B2 silicon
ASoC: cs35l56: Set fw_regs table after getting REVID
ALSA: hda/realtek: Add quirk for HP Spectre 14t-ea100
ASoc: tas2783A: Fix an error code in probe()
ASoC: tlv320aic3x: Fix class-D initialization for tlv320aic3007
ASoC: qcom: sc8280xp: use sa8775p/ subdir for QCS9100 / QCS9075
ASoC: stm32: sai: manage context in set_sysclk callback
ASoC: renesas: msiof: ignore 1st FSERR
ASoC: renesas: msiof: Add note for The possibility of R/L opposite Capture
ASoC: renesas: msiof: setup both (Playback/Capture) in the same time
ASoC: renesas: msiof: tidyup DMAC stop timing
...
|
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Capstone disassembly support was split between disasm.c and
print_insn.c. Move support out of these files into capstone.[ch] and
remove include capstone/capstone.h from those files. As disassembly
routines can fail, make failure the only option without
HAVE_LIBCAPSTONE_SUPPORT. For simplicity's sake, duplicate the
read_symbol utility function.
The intent with moving capstone support into a single file is that
dynamic support, using dlopen for libcapstone, can be added in later
patches. This can potentially always succeed or fail, so relying on
ifdefs isn't sufficient. Using dlopen is a useful option to minimize
the perf tools dependencies and potentially size.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Make the map argument const as the conversion act won't modify the map
and this allows other callers to use a const struct map.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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As same reason with previous patch, use "cyles" instead of "cycles:P"
event by default to sample guest for "perf kvm top" command on Intel
platforms.
Fixes: cf8e55fe50df0c02 ("KVM: x86/pmu: Expose CPUIDs feature bits PDCM, DS, DTES64")
Reported-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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|
After KVM supports PEBS for guest on Intel platforms
(https://lore.kernel.org/all/20220411101946.20262-1-likexu@tencent.com/),
host loses the capability to sample guest with PEBS since all PEBS related
MSRs are switched to guest value after vm-entry, like IA32_DS_AREA MSR is
switched to guest GVA at vm-entry. This would lead to "perf kvm record"
fails to sample guest on Intel platforms since "cycles:P" event is used to
sample guest by default as below case shows.
sudo perf kvm record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.787 MB perf.data.guest ]
So to ensure guest record can be sampled successfully, use "cycles"
instead of "cycles:P" to sample guest record by default on Intel
platforms. With this patch, the guest record can be sampled
successfully.
sudo perf kvm record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.783 MB perf.data.guest (23 samples) ]
Fixes: cf8e55fe50df0c02 ("KVM: x86/pmu: Expose CPUIDs feature bits PDCM, DS, DTES64")
Reported-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add helper x86__is_intel_cpu() to indicate if it's a x86 intel platform.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
kvm_add_default_arch_event() helper may add 2 extra options but it
directly modifies the original argv[] array. This may cause out of range
memory access. Fix this issue.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Same with previous builtin-kvm code, perf_kwork__record() doesn't check
the memory allocation and explicitly free the allocated memory. Just fix
it.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Current code allocates rec_argv[] array, but doesn't check if the
allocation is successful and explicitly free the rec_argv[] array.
Add them back.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
tools/lib/bpf/netlink.c depends on rtnetlink.h and genetlink.h (via
nlattr.h) which then depends on if_addr.h.
tools/bpf/bpftool/link.c depends on netfilter_arp.h which then depends
on netfilter.h.
Update check-headers.sh to keep these in sync.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Darren Hart <dvhart@infradead.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jason Xing <kerneljasonxing@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maurice Lambert <mauricelambert434@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Machata <petrm@nvidia.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Yuyang Huang <yuyanghuang@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Previously the header gfp_types.h in tools points to the gfp_types.h
in include/linux. This is a problem for tools like perf, since the
tools header is supposed to be independent of the kernel
headers.
Therefore this patch copies the kernel header to the tools header and
adds a header check.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Darren Hart <dvhart@infradead.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jason Xing <kerneljasonxing@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maurice Lambert <mauricelambert434@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Machata <petrm@nvidia.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Yuyang Huang <yuyanghuang@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
small_const_nbits is defined in asm-generic/bitsperlong.h which
bitmap.h uses but doesn't include causing build failures in some build
systems. Add the missing #include.
Note the bitmap.h in tools has diverged from that of the kernel, so no
changes are made there.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Yury Norov <yury.norov@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Darren Hart <dvhart@infradead.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jason Xing <kerneljasonxing@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jonas Gottlieb <jonas.gottlieb@stackit.cloud>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maurice Lambert <mauricelambert434@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Machata <petrm@nvidia.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yuyang Huang <yuyanghuang@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
