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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have lots of small changes all over the place, but no huge reworks
or new drivers:
- use ioread()/iowrite() interfaces instead of raw inb()/outb() in
drivers
- make irqchips immutable due to the new warning popping up when
drivers try to modify the irqchip structures
- add new compatibles to dt-bindings for realtek-otto, renesas-rcar
and pca95xx
- add support for new models to gpio-rcar, gpio-pca953x &
gpio-realtek-otto
- allow parsing of GPIO hogs represented as children nodes of
gpio-uniphier
- define a set of common GPIO consumer strings in dt-bindings
- shrink code in gpio-ml-ioh by using more devres interfaces
- pass arguments to devm_kcalloc() in correct order in gpio-sim
- add new helpers for iterating over GPIO firmware nodes and
descriptors to gpiolib core and use it in several drivers
- drop unused syscon_regmap_lookup_by_compatible() function
- correct format specifiers and signedness of variables in GPIO ACPI
- drop unneeded error checks in gpio-ftgpio
- stop using the deprecated of_gpio.h header in gpio-zevio
- drop platform_data support in gpio-max732x
- simplify Kconfig dependencies in gpio-vf610
- use raw spinlocks where needed to make PREEMPT_RT happy
- fix return values in board files using gpio-pcf857x
- convert more drivers to using fwnode instead of of_node
- minor fixes and improvements in gpiolib core"
* tag 'gpio-updates-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (55 commits)
gpio: sifive: Make the irqchip immutable
gpio: rcar: Make the irqchip immutable
gpio: pcf857x: Make the irqchip immutable
gpio: pca953x: Make the irqchip immutable
gpio: dwapb: Make the irqchip immutable
gpio: sim: Use correct order for the parameters of devm_kcalloc()
gpio: ml-ioh: Convert to use managed functions pcim* and devm_*
gpio: ftgpio: Remove unneeded ERROR check before clk_disable_unprepare
gpio: ws16c48: Utilize iomap interface
gpio: gpio-mm: Utilize iomap interface
gpio: 104-idio-16: Utilize iomap interface
gpio: 104-idi-48: Utilize iomap interface
gpio: 104-dio-48e: Utilize iomap interface
gpio: zevio: drop of_gpio.h header
gpio: max77620: Make the irqchip immutable
dt-bindings: gpio: pca95xx: add entry for pca6408
gpio: pca953xx: Add support for pca6408
gpio: max732x: Drop unused support for irq and setup code via platform data
gpio: vf610: drop the SOC_VF610 dependency for GPIO_VF610
gpio: syscon: Remove usage of syscon_regmap_lookup_by_compatible
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
"cros_ec:
- Fix wrong error handling path
- Clean-up patches
cros_ec_chardev:
- Re-introduce cros_ec_cmd_xfer to fix ABI broken
cros_ec_lpcs:
- Support the Framework Laptop
cros_ec_typec:
- Fix NULL dereference
chromeos_acpi:
- Add ChromeOS ACPI device driver
- Fix Sphinx errors when `make htmldocs`
misc:
- Drop BUG_ON()s"
* tag 'tag-chrome-platform-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: Use imperative mood for ChromeOS ACPI sysfs ABI descriptions
platform/chrome: Use tables for values lists of ChromeOS ACPI sysfs ABI
platform/chrome: cros_ec_spi: drop BUG_ON() if `din` isn't large enough
platform/chrome: cros_ec_spi: drop unneeded BUG_ON()
platform/chrome: cros_ec_i2c: drop BUG_ON() in cros_ec_pkt_xfer_i2c()
platform/chrome: cros_ec_proto: drop BUG_ON() in cros_ec_get_host_event()
platform/chrome: cros_ec_proto: drop BUG_ON() in cros_ec_prepare_tx()
platform/chrome: correct cros_ec_prepare_tx() usage
platform/chrome: cros_ec_proto: drop unneeded BUG_ON() in prepare_packet()
platform/chrome: Add ChromeOS ACPI device driver
platform/chrome: cros_ec_typec: Check for EC driver
platform/chrome: cros_ec_lpcs: reserve the MEC LPC I/O ports first
platform/chrome: cros_ec_lpcs: detect the Framework Laptop
platform/chrome: Re-introduce cros_ec_cmd_xfer and use it for ioctls
platform/chrome: cros_ec: append newline to all logs
platform/chrome: cros_ec: sort header inclusion alphabetically
platform/chrome: cros_ec: determine `wake_enabled` in cros_ec_suspend()
platform/chrome: cros_ec: remove unused variable `was_wake_device`
platform/chrome: cros_ec: fix error handling in cros_ec_register()
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Commit e5499dd7253c ("media: lirc: revert removal of unused feature
flags") reintroduced unused feature flags in the lirc uapi header, but
failed to reintroduce the necessary exceptions for the docs.
Fixes: e5499dd7253c ("media: lirc: revert removal of unused feature flags")
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull kvm updates from Paolo Bonzini:
"S390:
- ultravisor communication device driver
- fix TEID on terminating storage key ops
RISC-V:
- Added Sv57x4 support for G-stage page table
- Added range based local HFENCE functions
- Added remote HFENCE functions based on VCPU requests
- Added ISA extension registers in ONE_REG interface
- Updated KVM RISC-V maintainers entry to cover selftests support
ARM:
- Add support for the ARMv8.6 WFxT extension
- Guard pages for the EL2 stacks
- Trap and emulate AArch32 ID registers to hide unsupported features
- Ability to select and save/restore the set of hypercalls exposed to
the guest
- Support for PSCI-initiated suspend in collaboration with userspace
- GICv3 register-based LPI invalidation support
- Move host PMU event merging into the vcpu data structure
- GICv3 ITS save/restore fixes
- The usual set of small-scale cleanups and fixes
x86:
- New ioctls to get/set TSC frequency for a whole VM
- Allow userspace to opt out of hypercall patching
- Only do MSR filtering for MSRs accessed by rdmsr/wrmsr
AMD SEV improvements:
- Add KVM_EXIT_SHUTDOWN metadata for SEV-ES
- V_TSC_AUX support
Nested virtualization improvements for AMD:
- Support for "nested nested" optimizations (nested vVMLOAD/VMSAVE,
nested vGIF)
- Allow AVIC to co-exist with a nested guest running
- Fixes for LBR virtualizations when a nested guest is running, and
nested LBR virtualization support
- PAUSE filtering for nested hypervisors
Guest support:
- Decoupling of vcpu_is_preempted from PV spinlocks"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (199 commits)
KVM: x86: Fix the intel_pt PMI handling wrongly considered from guest
KVM: selftests: x86: Sync the new name of the test case to .gitignore
Documentation: kvm: reorder ARM-specific section about KVM_SYSTEM_EVENT_SUSPEND
x86, kvm: use correct GFP flags for preemption disabled
KVM: LAPIC: Drop pending LAPIC timer injection when canceling the timer
x86/kvm: Alloc dummy async #PF token outside of raw spinlock
KVM: x86: avoid calling x86 emulator without a decoded instruction
KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak
x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave)
s390/uv_uapi: depend on CONFIG_S390
KVM: selftests: x86: Fix test failure on arch lbr capable platforms
KVM: LAPIC: Trace LAPIC timer expiration on every vmentry
KVM: s390: selftest: Test suppression indication on key prot exception
KVM: s390: Don't indicate suppression on dirtying, failing memop
selftests: drivers/s390x: Add uvdevice tests
drivers/s390/char: Add Ultravisor io device
MAINTAINERS: Update KVM RISC-V entry to cover selftests support
RISC-V: KVM: Introduce ISA extension register
RISC-V: KVM: Cleanup stale TLB entries when host CPU changes
RISC-V: KVM: Add remote HFENCE functions based on VCPU requests
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Almost all of MM here. A few things are still getting finished off,
reviewed, etc.
- Yang Shi has improved the behaviour of khugepaged collapsing of
readonly file-backed transparent hugepages.
- Johannes Weiner has arranged for zswap memory use to be tracked and
managed on a per-cgroup basis.
- Munchun Song adds a /proc knob ("hugetlb_optimize_vmemmap") for
runtime enablement of the recent huge page vmemmap optimization
feature.
- Baolin Wang contributes a series to fix some issues around hugetlb
pagetable invalidation.
- Zhenwei Pi has fixed some interactions between hwpoisoned pages and
virtualization.
- Tong Tiangen has enabled the use of the presently x86-only
page_table_check debugging feature on arm64 and riscv.
- David Vernet has done some fixup work on the memcg selftests.
- Peter Xu has taught userfaultfd to handle write protection faults
against shmem- and hugetlbfs-backed files.
- More DAMON development from SeongJae Park - adding online tuning of
the feature and support for monitoring of fixed virtual address
ranges. Also easier discovery of which monitoring operations are
available.
- Nadav Amit has done some optimization of TLB flushing during
mprotect().
- Neil Brown continues to labor away at improving our swap-over-NFS
support.
- David Hildenbrand has some fixes to anon page COWing versus
get_user_pages().
- Peng Liu fixed some errors in the core hugetlb code.
- Joao Martins has reduced the amount of memory consumed by
device-dax's compound devmaps.
- Some cleanups of the arch-specific pagemap code from Anshuman
Khandual.
- Muchun Song has found and fixed some errors in the TLB flushing of
transparent hugepages.
- Roman Gushchin has done more work on the memcg selftests.
... and, of course, many smaller fixes and cleanups. Notably, the
customary million cleanup serieses from Miaohe Lin"
* tag 'mm-stable-2022-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (381 commits)
mm: kfence: use PAGE_ALIGNED helper
selftests: vm: add the "settings" file with timeout variable
selftests: vm: add "test_hmm.sh" to TEST_FILES
selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests
selftests: vm: add migration to the .gitignore
selftests/vm/pkeys: fix typo in comment
ksm: fix typo in comment
selftests: vm: add process_mrelease tests
Revert "mm/vmscan: never demote for memcg reclaim"
mm/kfence: print disabling or re-enabling message
include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace"
include/trace/events/mmflags.h: cleanup for "tracing: incorrect gfp_t conversion"
mm: fix a potential infinite loop in start_isolate_page_range()
MAINTAINERS: add Muchun as co-maintainer for HugeTLB
zram: fix Kconfig dependency warning
mm/shmem: fix shmem folio swapoff hang
cgroup: fix an error handling path in alloc_pagecache_max_30M()
mm: damon: use HPAGE_PMD_SIZE
tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate
nodemask.h: fix compilation error with GCC12
...
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Daniel Wagner reported to me that readproc.h got deprecated. Also,
while the procps-ng library was available on Fedora, it was not available
on RHEL, which is a piece of evidence that it was not that used.
rtla uses procps-ng only to find the PID of the tracers' workload.
I used the procps-ng library to avoid reinventing the wheel. But in this
case, reinventing the wheel took me less time than the time we already
took trying to work around problems.
Implement a function that reads /proc/ entries, checking if:
- the entry is a directory
- the directory name is composed only of digits (PID)
- the directory contains the comm file
- the comm file contains a comm that matches the tracers'
workload prefix.
- then return true; otherwise, return false.
And use it instead of procps-ng.
Link: https://lkml.kernel.org/r/e8276e122ee9eb2c5a0ba8e673fb6488b924b825.1652423574.git.bristot@kernel.org
Cc: John Kacur <jkacur@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tao Zhou <tao.zhou@linux.dev>
Fixes: b1696371d865 ("rtla: Helper functions for rtla")
Reported-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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rtla's function __set_sched_attr() was borrowed from stalld, but I
forgot to update the error message to something meaningful for rtla.
Update the error message from:
boost_with_deadline failed to boost pid PID: STRERROR
to a proper one:
Failed to set sched attributes to the pid PID: STRERROR
Link: https://lkml.kernel.org/r/a2d19b2c53f6512aefd1ee7f8c1bd19d4fc8b99d.1651247710.git.bristot@kernel.org
Link: https://lore.kernel.org/r/eeded730413e7feaa13f946924bcf2cbf7dd9561.1650617571.git.bristot@kernel.org/
Fixes: b1696371d865 ("rtla: Helper functions for rtla")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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- Change to "The rtla meta-tool includes"
- Remove an unnecessary "But, "
- Adjust the formatting of the paragraph resulting from the changes.
- Simplify the wording for the libraries and tools.
Link: https://lkml.kernel.org/r/437f0accdde53713ab3cce46f3564be00487e031.1651247710.git.bristot@kernel.org
Link: https://lore.kernel.org/r/20220408161012.10544-1-jkacur@redhat.com/
Cc: Daniel Bristot de Oliveria <bristot@kernel.org>
Fixes: 79ce8f43ac5a ("rtla: Real-Time Linux Analysis tool")
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The mode on /usr/bin is often 555 these days,
but make install on rtla overwrites this with 755
Fix this by preserving the current directory if it exists.
Link: https://lkml.kernel.org/r/8c294a6961080a1970fd8b73f7bcf1e3984579e2.1651247710.git.bristot@kernel.org
Link: https://lore.kernel.org/r/20220402043939.6962-1-jkacur@redhat.com
Cc: Daniel Bristot de Oliveria <bristot@redhat.com>
Fixes: 79ce8f43ac5a ("rtla: Real-Time Linux Analysis tool")
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Fix the following null/deref_null.cocci errors:
./tools/tracing/rtla/src/osnoise_hist.c:870:31-36: ERROR: record is NULL but dereferenced.
./tools/tracing/rtla/src/osnoise_top.c:650:31-36: ERROR: record is NULL but dereferenced.
./tools/tracing/rtla/src/timerlat_hist.c:905:31-36: ERROR: record is NULL but dereferenced.
./tools/tracing/rtla/src/timerlat_top.c:700:31-36: ERROR: record is NULL but dereferenced.
"record" is NULL before calling osnoise_init_trace_tool.
Add a tag "out_free" to avoid dereferring a NULL pointer.
Link: https://lkml.kernel.org/r/ae0e4500d383db0884eb2820286afe34ca303778.1651247710.git.bristot@kernel.org
Link: https://lore.kernel.org/r/20220408151406.34823-1-wanjiabing@vivo.com/
Cc: kael_w@yeah.net
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Fixes: 51d64c3a1819 ("rtla: Add -e/--event support")
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Linus had a problem compiling RTLA, saying:
"[...] I wish the tracing tools would do a bit more package
checking and helpful error messages too, rather than just
fail with:
fatal error: tracefs.h: No such file or directory"
Which is indeed not a helpful message. Update the Makefile, adding
proper checks for the dependencies, with useful information about
how to resolve possible problems.
For example, the previous error is now reported as:
$ make
********************************************
** NOTICE: libtracefs version 1.3 or higher not found
**
** Consider installing the latest libtracefs from your
** distribution, e.g., 'dnf install libtracefs' on Fedora,
** or from source:
**
** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/
**
********************************************
These messages are inspired by the ones used on trace-cmd, as suggested
by Stevel Rostedt.
Link: https://lore.kernel.org/r/CAHk-=whxmA86E=csNv76DuxX_wYsg8mW15oUs3XTabu2Yc80yw@mail.gmail.com/
Changes from V1:
- Moved the rst2man check to the install phase (when it is used).
- Removed the procps-ng lib check [1] as it is being removed.
[1] a0f9f8c1030c66305c9b921057c3d483064d5529.1651220820.git.bristot@kernel.org
Link: https://lkml.kernel.org/r/3f1fac776c37e4b67c876a94e5a0e45ed022ff3d.1651238057.git.bristot@kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Add HOSTPKG_CONFIG env variable to allow users to override pkg-config
- Support W=e as a shorthand for KCFLAGS=-Werror
- Fix CONFIG_IKHEADERS build to support toybox cpio
- Add scripts/dummy-tools/pahole to ease distro packagers' life
- Suppress false-positive warnings from checksyscalls.sh for W=2 build
- Factor out the common code of arch/*/boot/install.sh into
scripts/install.sh
- Support 'kernel-install' tool in scripts/prune-kernel
- Refactor module-versioning to link the symbol versions at the final
link of vmlinux and modules
- Remove CONFIG_MODULE_REL_CRCS because module-versioning now works in
an arch-agnostic way
- Refactor modpost, Makefiles
* tag 'kbuild-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (56 commits)
genksyms: adjust the output format to modpost
kbuild: stop merging *.symversions
kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS
modpost: extract symbol versions from *.cmd files
modpost: add sym_find_with_module() helper
modpost: change the license of EXPORT_SYMBOL to bool type
modpost: remove left-over cross_compile declaration
kbuild: record symbol versions in *.cmd files
kbuild: generate a list of objects in vmlinux
modpost: move *.mod.c generation to write_mod_c_files()
modpost: merge add_{intree_flag,retpoline,staging_flag} to add_header
scripts/prune-kernel: Use kernel-install if available
kbuild: factor out the common installation code into scripts/install.sh
modpost: split new_symbol() to symbol allocation and hash table addition
modpost: make sym_add_exported() always allocate a new symbol
modpost: make multiple export error
modpost: dump Module.symvers in the same order of modules.order
modpost: traverse the namespace_list in order
modpost: use doubly linked list for dump_lists
modpost: traverse unresolved symbols in order
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"The asm-generic tree contains three separate changes for linux-5.19:
- The h8300 architecture is retired after it has been effectively
unmaintained for a number of years. This is the last architecture
we supported that has no MMU implementation, but there are still a
few architectures (arm, m68k, riscv, sh and xtensa) that support
CPUs with and without an MMU.
- A series to add a generic ticket spinlock that can be shared by
most architectures with a working cmpxchg or ll/sc type atomic,
including the conversion of riscv, csky and openrisc. This series
is also a prerequisite for the loongarch64 architecture port that
will come as a separate pull request.
- A cleanup of some exported uapi header files to ensure they can be
included from user space without relying on other kernel headers"
* tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
h8300: remove stale bindings and symlink
sparc: add asm/stat.h to UAPI compile-test coverage
powerpc: add asm/stat.h to UAPI compile-test coverage
mips: add asm/stat.h to UAPI compile-test coverage
riscv: add linux/bpf_perf_event.h to UAPI compile-test coverage
kbuild: prevent exported headers from including <stdlib.h>, <stdbool.h>
agpgart.h: do not include <stdlib.h> from exported header
csky: Move to generic ticket-spinlock
RISC-V: Move to queued RW locks
RISC-V: Move to generic spinlocks
openrisc: Move to ticket-spinlock
asm-generic: qrwlock: Document the spinlock fairness requirements
asm-generic: qspinlock: Indicate the use of mixed-size atomics
asm-generic: ticket-lock: New generic ticket-based spinlock
remove the h8300 architecture
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARMv4T/v5 multiplatform support from Arnd Bergmann:
"This series has been 12 years in the making, it mostly finishes the
work that was started with the founding of Linaro to clean up platform
support in the kernel.
The largest change here is a cleanup of the omap1 platform, which is
the final ARM machine type to get converted to the common-clk
subsystem. All the omap1 specific drivers are now made independent of
the mach/*.h headers to allow the platform to be part of a generic
ARMv4/v5 multiplatform kernel.
The last bit that enables this support is still missing here while we
wait for some last dependencies to make it into the mainline kernel
through other subsystems.
The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost
at the point of allowing multiplatform kernels, this work gets
completed here along with a few additional cleanup. At the same time,
the s3c24xx and s3c64xx are now deprecated and expected to get removed
in the future.
The PXA and OMAP1 bits are in a separate branch because of
dependencies. Once both branches are merged, only the three Intel
StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100)
need separate kernels, and there are no plans to include these"
* tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
ARM: ixp4xx: Consolidate Kconfig fixing issue
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: config: Refresh IXP4xx config after multiplatform
ARM: omap1: add back omap_set_dma_priority() stub
ARM: omap: fix missing declaration warnings
ARM: omap: fix address space warnings from sparse
ARM: spear: remove include/mach/ subdirectory
ARM: davinci: remove include/mach/ subdirectory
ARM: omap2: remove include/mach/ subdirectory
integrator: remove empty ap_init_early()
ARM: s3c: fix include path
MAINTAINERS: omap1: Add Janusz as an additional maintainer
ARM: omap1: htc_herald: fix typos in comments
ARM: OMAP1: fix typos in comments
ARM: OMAP1: clock: Remove noop code
ARM: OMAP1: clock: Remove unused code
ARM: OMAP1: clock: Fix UART rate reporting algorithm
ARM: OMAP1: clock: Fix early UART rate issues
ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF
ARM: omap1: fix build with no SoC selected
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM defconfig updates from Arnd Bergmann:
"Lots of smaller additions to the defconfig files for both 32-bit and
64-bit arm platforms, enabling drivers that are now usable on common
hardware, and a few options to make it possible to boot a file system
image using systemd"
* tag 'arm-defconfig-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (39 commits)
ARM: configs: Enable ASoC AC'97 glue
ARM: configs: Enable audio on BeagleBone Black in multi_v7_defconfig
ARM: configs: at91: Enable AUTOFS_FS required by systemd
ARM: configs: at91: Enable options required for systemd
ARM: configs: at91: sama7: enable CONFIG_RESET_CONTROLLER
ARM: configs: at91: sama7: add MCHP PDMC and DMIC drivers
ARM: configs: at91: sama7: Enable MTD_UBI_BLOCK
ARM: configs: at91: sama7: Enable MTD_UBI_FASTMAP
ARM: configs: at91: sama7: add xisc and csi2dc
ARM: multi_v7_defconfig: add atmel video pipeline modules
ARM: configs: at91: Remove MTD_BLOCK and use MTD_UBI_BLOCK for read only block FS
arm64: defconfig: Enable the WM8524 codec driver
arm64: defconfig: Enable modules for arm displays
arm: nomadik: drop selecting obsolete CLKSRC_NOMADIK_MTU_SCHED_CLOCK
arm64: defconfig: Enable Renesas RZ/V2M SoC
arm64: defconfig: Enable ARCH_R9A07G043
arm64: defconfig: Enable configs for DisplayPort on J721e
arm64: defconfig: Build Tegra ASRC module
ARM: multi_v7_defconfig: enable CONFIG_ARCH_BCMBCA in armv7 defconfig
arm: mediatek: select arch timer for mt7629
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann:
"There are minor updates to SoC specific drivers for chips by Rockchip,
Samsung, NVIDIA, TI, NXP, i.MX, Qualcomm, and Broadcom.
Noteworthy driver changes include:
- Several conversions of DT bindings to yaml format.
- Renesas adds driver support for R-Car V4H, RZ/V2M and RZ/G2UL SoCs.
- Qualcomm adds a bus driver for the SSC (Snapdragon Sensor Core),
and support for more chips in the RPMh power domains and the
soc-id.
- NXP has a new driver for the HDMI blk-ctrl on i.MX8MP.
- Apple M1 gains support for the on-chip NVMe controller, making it
possible to finally use the internal disks. This also includes SoC
drivers for their RTKit IPC and for the SART DMA address filter.
For other subsystems that merge their drivers through the SoC tree, we
have
- Firmware drivers for the ARM firmware stack including TEE, OP-TEE,
SCMI and FF-A get a number of smaller updates and cleanups. OP-TEE
now has a cache for firmware argument structures as an
optimization, and SCMI now supports the 3.1 version of the
specification.
- Reset controller updates to Amlogic, ASpeed, Renesas and ACPI
drivers
- Memory controller updates for Tegra, and a few updates for other
platforms"
* tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (159 commits)
memory: tegra: Add MC error logging on Tegra186 onward
memory: tegra: Add memory controller channels support
memory: tegra: Add APE memory clients for Tegra234
memory: tegra: Add Tegra234 support
nvme-apple: fix sparse endianess warnings
soc/tegra: pmc: Document core domain fields
soc: qcom: pdr: use static for servreg_* variables
soc: imx: fix semicolon.cocci warnings
soc: renesas: R-Car V3U is R-Car Gen4
soc: imx: add i.MX8MP HDMI blk-ctrl
soc: imx: imx8m-blk-ctrl: Add i.MX8MP media blk-ctrl
soc: imx: add i.MX8MP HSIO blk-ctrl
soc: imx: imx8m-blk-ctrl: set power device name
soc: qcom: llcc: Add sc8180x and sc8280xp configurations
dt-bindings: arm: msm: Add sc8180x and sc8280xp LLCC compatibles
soc/tegra: pmc: Select REGMAP
dt-bindings: reset: st,sti-powerdown: Convert to yaml
dt-bindings: reset: st,sti-picophyreset: Convert to yaml
dt-bindings: reset: socfpga: Convert to yaml
dt-bindings: reset: snps,axs10x-reset: Convert to yaml
...
|
|
Pull ARM DT updates from Arnd Bergmann:
"There are 40 branches this time, adding a lot of new hardware support,
and cleanups. Krzysztof Kozlowski continues his treewide cleanups.
There are a number of new SoCs, all of them as part of existing
families, and typically added along with a reference board:
- Renesas RZ/G2UL (R9A07G043) is the single-core version of the
RZ/G2L general-purpose MPU.
- Renesas RZ/V2M (R9A09G011) is a smart camera SoC
- Renesas R-Car V4H (R8A779G0) is an automotive chip with Cortex-A76
cores and deep learning accerlation.
- Broadcom BCM47622 is a new broadband SoC based on a quad Cortex-A7
and dual Wifi-6.
- Corstone1000 is a generic platform from Arm that is used for
designing custom SoCs, the support for now is for the Fixed Virtual
Platform emulation for it.
- Mediatek MT8195 (Kompanio 1200) is a high-end consumer chip used in
upcoming Chromebooks.
- NXP i.MXRT1050 is a Cortex-M7 based microcontroller, the first
MMU-less SoC to be added in a while
New machines based on already supported SoCs this time are mainly for
32-bit platforms and include:
- Two wireless routers based on Broadcom bcm4708
- 30 new boards based on NXP i.MX6, i.MX7 and i.MX8 families, mostly
for the industrial embedded market, and on NXP LS1021A based IOT
board.
- Two ethernet switches based on Microchip LAN966
- Eight Qualcomm Snapdragon based machines, including a smartwatch, a
Chromebook board and some phones
- Another phone based on the old ST-Ericsson Ux500 platform
- Seven STM32MP1 based boards
- Four single-board computers based on Rockchip RK3566/RK3568"
* tag 'arm-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (791 commits)
ARM: dts: kswitch-d10: enable networking
ARM: dts: lan966x: add switch node
ARM: dts: lan966x: add serdes node
ARM: dts: lan966x: add reset switch reset node
ARM: dts: lan966x: add MIIM nodes
ARM: dts: lan966x: add hwmon node
ARM: dts: lan966x: add basic Kontron KSwitch D10 support
ARM: dts: lan966x: add flexcom I2C nodes
ARM: dts: lan966x: add flexcom SPI nodes
ARM: dts: lan966x: add all flexcom usart nodes
ARM: dts: lan966x: add missing uart DMA channel
ARM: dts: lan966x: add sgpio node
ARM: dts: lan966x: swap dma channels for crypto node
ARM: dts: lan966x: rename pinctrl nodes
ARM: dts: at91: sama7g5: remove interrupt-parent from gic node
ARM: dts: at91: use generic node name for dataflash
ARM: dts: turris-omnia: Add atsha204a node
arm64: dts: mt8192: Follow binding order for SCP registers
arm64: dts: mediatek: add mtk-snfi for mt7622
arm64: dts: mediatek: mt8195-demo: enable uart1
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull 32-bit ARM SoC updates from Arnd Bergmann:
"These updates are for platform specific code in arch/arm/, mostly
fixing minor issues.
The at91 platform gains support for better power management on the
lan966 platform and new firmware on the sama5 platform. The mediatek
soc drivers in turn are enabled for the new mt8195 SoC"
* tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (34 commits)
ARM: at91: debug: add lan966 support
ARM: at91: pm: add support for sama5d2 secure suspend
ARM: at91: add code to handle secure calls
ARM: at91: Kconfig: implement PIT64B selection
ARM: at91: pm: add quirks for pm
ARM: at91: pm: use kernel documentation style
ARM: at91: pm: introduce macros for pm mode replacement
ARM: at91: pm: keep documentation inline with structure members
orion5x: fix typos in comments
ARM: hisi: Add missing of_node_put after of_find_compatible_node
ARM: shmobile: rcar-gen2: Drop comma after OF match table sentinel
ARM: shmobile: Drop commas after dt_compat sentinels
soc: mediatek: mutex: remove mt8195 MOD0 and SOF0 definition
MAINTAINERS: Add Broadcom BCMBCA entry
arm: bcmbca: add arch bcmbca machine entry
MAINTAINERS: Broadcom internal lists aren't maintainers
dt-bindings: pwrap: mediatek: Update pwrap document for mt8195
soc: mediatek: add DDP_DOMPONENT_DITHER0 enum for mt8195 vdosys0
soc: mediatek: add mtk-mutex support for mt8195 vdosys0
soc: mediatek: add mtk-mmsys support for mt8195 vdosys0
...
|
|
The commit 26623eea0da3 attempted to deal with potential leak of runtime
PM counter when opening the touchscreen device, however it ended up
erroneously dropping the counter in the case of successfully enabling the
device.
Let's address this by using pm_runtime_resume_and_get() and then executing
pm_runtime_put_sync() only when we fail to send "sense on" command to the
device.
Fixes: 26623eea0da3 ("Input: stmfts - fix reference leak in stmfts_input_open")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
|
gpio_keys module can either accept gpios or interrupts. The module
initializes delayed work in case of gpios only and is only used if
debounce timer is not used, so make sure cancel_delayed_work_sync()
is called only when its gpio-backed and debounce_use_hrtimer is false.
This fixes the issue seen below when the gpio_keys module is unloaded and
an interrupt pin is used instead of GPIO:
[ 360.297569] ------------[ cut here ]------------
[ 360.302303] WARNING: CPU: 0 PID: 237 at kernel/workqueue.c:3066 __flush_work+0x414/0x470
[ 360.310531] Modules linked in: gpio_keys(-)
[ 360.314797] CPU: 0 PID: 237 Comm: rmmod Not tainted 5.18.0-rc5-arm64-renesas-00116-g73636105874d-dirty #166
[ 360.324662] Hardware name: Renesas SMARC EVK based on r9a07g054l2 (DT)
[ 360.331270] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 360.338318] pc : __flush_work+0x414/0x470
[ 360.342385] lr : __cancel_work_timer+0x140/0x1b0
[ 360.347065] sp : ffff80000a7fba00
[ 360.350423] x29: ffff80000a7fba00 x28: ffff000012b9c5c0 x27: 0000000000000000
[ 360.357664] x26: ffff80000a7fbb80 x25: ffff80000954d0a8 x24: 0000000000000001
[ 360.364904] x23: ffff800009757000 x22: 0000000000000000 x21: ffff80000919b000
[ 360.372143] x20: ffff00000f5974e0 x19: ffff00000f5974e0 x18: ffff8000097fcf48
[ 360.379382] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000053f40
[ 360.386622] x14: ffff800009850e88 x13: 0000000000000002 x12: 000000000000a60c
[ 360.393861] x11: 000000000000a610 x10: 0000000000000000 x9 : 0000000000000008
[ 360.401100] x8 : 0101010101010101 x7 : 00000000a473c394 x6 : 0080808080808080
[ 360.408339] x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff80000919b458
[ 360.415578] x2 : ffff8000097577f0 x1 : 0000000000000001 x0 : 0000000000000000
[ 360.422818] Call trace:
[ 360.425299] __flush_work+0x414/0x470
[ 360.429012] __cancel_work_timer+0x140/0x1b0
[ 360.433340] cancel_delayed_work_sync+0x10/0x18
[ 360.437931] gpio_keys_quiesce_key+0x28/0x58 [gpio_keys]
[ 360.443327] devm_action_release+0x10/0x18
[ 360.447481] release_nodes+0x8c/0x1a0
[ 360.451194] devres_release_all+0x90/0x100
[ 360.455346] device_unbind_cleanup+0x14/0x60
[ 360.459677] device_release_driver_internal+0xe8/0x168
[ 360.464883] driver_detach+0x4c/0x90
[ 360.468509] bus_remove_driver+0x54/0xb0
[ 360.472485] driver_unregister+0x2c/0x58
[ 360.476462] platform_driver_unregister+0x10/0x18
[ 360.481230] gpio_keys_exit+0x14/0x828 [gpio_keys]
[ 360.486088] __arm64_sys_delete_module+0x1e0/0x270
[ 360.490945] invoke_syscall+0x40/0xf8
[ 360.494661] el0_svc_common.constprop.3+0xf0/0x110
[ 360.499515] do_el0_svc+0x20/0x78
[ 360.502877] el0_svc+0x48/0xf8
[ 360.505977] el0t_64_sync_handler+0x88/0xb0
[ 360.510216] el0t_64_sync+0x148/0x14c
[ 360.513930] irq event stamp: 4306
[ 360.517288] hardirqs last enabled at (4305): [<ffff8000080b0300>] __cancel_work_timer+0x130/0x1b0
[ 360.526359] hardirqs last disabled at (4306): [<ffff800008d194fc>] el1_dbg+0x24/0x88
[ 360.534204] softirqs last enabled at (4278): [<ffff8000080104a0>] _stext+0x4a0/0x5e0
[ 360.542133] softirqs last disabled at (4267): [<ffff8000080932ac>] irq_exit_rcu+0x18c/0x1b0
[ 360.550591] ---[ end trace 0000000000000000 ]---
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220524135822.14764-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
|
Use try_cmpxchg64 instead of cmpxchg64 in CMPXCHG_LOOP macro.
x86 CMPXCHG instruction returns success in ZF flag, so this
change saves a compare after cmpxchg (and related move instruction
in front of cmpxchg). The main loop of lockref_get improves from:
13: 48 89 c1 mov %rax,%rcx
16: 48 c1 f9 20 sar $0x20,%rcx
1a: 83 c1 01 add $0x1,%ecx
1d: 48 89 ce mov %rcx,%rsi
20: 89 c1 mov %eax,%ecx
22: 48 89 d0 mov %rdx,%rax
25: 48 c1 e6 20 shl $0x20,%rsi
29: 48 09 f1 or %rsi,%rcx
2c: f0 48 0f b1 4d 00 lock cmpxchg %rcx,0x0(%rbp)
32: 48 39 d0 cmp %rdx,%rax
35: 75 17 jne 4e <lockref_get+0x4e>
to:
13: 48 89 ca mov %rcx,%rdx
16: 48 c1 fa 20 sar $0x20,%rdx
1a: 83 c2 01 add $0x1,%edx
1d: 48 89 d6 mov %rdx,%rsi
20: 89 ca mov %ecx,%edx
22: 48 c1 e6 20 shl $0x20,%rsi
26: 48 09 f2 or %rsi,%rdx
29: f0 48 0f b1 55 00 lock cmpxchg %rdx,0x0(%rbp)
2f: 75 02 jne 33 <lockref_get+0x33>
[ Michael Ellerman and Mark Rutland confirm that code generation on
powerpc and arm64 respectively is also ok, even though they do not
have a native arch_try_cmpxchg() implementation, and rely on the
default fallback case - Linus ]
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman.Long@hp.com
Cc: paulmck@linux.vnet.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
DWARF register numbers and real register numbers on aarch64 are
equivalent. Remove the references to the register names from Libunwind
so that new registers are supported without having to add build time
feature checks for each new register.
The unwinder won't ask for a register that it doesn't know about and
Perf will already report an error for an unknown or unrecorded register
in the perf_reg_value() function so extra validation isn't needed.
After this change the new VG register can be read by libunwind.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-5-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Architectures can detect availability of extra registers at runtime so
use this more complete set for unwinding. This will include the VG
register on arm64 in a later commit.
If the function isn't implemented then PERF_REGS_MASK is returned and
there is no change.
Committer notes:
Added util/perf_regs.c to tools/perf/util/python-ext-sources so that
'perf test python' passes, i.e. the perf python binding has all the
symbols it needs, addressing:
$ perf test -v python
19: 'import perf' in python :
--- start ---
test child forked, pid 2037817
python usage test: "echo "import sys ; sys.path.append('/tmp/build/perf/python'); import perf" | '/usr/bin/python3' "
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /tmp/build/perf/python/perf.cpython-310-x86_64-linux-gnu.so: undefined symbol: arch__user_reg_mask
test child finished with -1
---- end ----
'import perf' in python: FAILED!
$
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Get the updated header for the newly added VG register.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: <broonie@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Fix this include path to use perf's copy of the kernel header rather
than the one from the root of the repo.
This fixes build errors when only applying the perf tools part of a
patchset rather than both sides.
Reported-by: German Gomez <german.gomez@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: German Gomez <german.gomez@arm.com>
Cc: <broonie@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
If the slang lib is not installed on the system, perf c2c tool disables TUI
mode and roll back to use stdio mode; but the flag 'c2c.use_stdio' is
missed to set true and thus it wrongly applies UI quirks in the function
ui_quirks().
This commit forces to use stdio interface if slang is not supported, and
it can avoid to apply the UI quirks and show the correct metric header.
Before:
=================================================
Shared Cache Line Distribution Pareto
=================================================
-------------------------------------------------------------------------------
0 0 0 99 0 0 0 0xaaaac17d6000
-------------------------------------------------------------------------------
0.00% 0.00% 6.06% 0.00% 0.00% 0.00% 0x20 N/A 0 0xaaaac17c25ac 0 0 43 375 18469 2 [.] 0x00000000000025ac memstress memstress[25ac] 0
0.00% 0.00% 93.94% 0.00% 0.00% 0.00% 0x29 N/A 0 0xaaaac17c3e88 0 0 173 180 135 2 [.] 0x0000000000003e88 memstress memstress[3e88] 0
After:
=================================================
Shared Cache Line Distribution Pareto
=================================================
-------------------------------------------------------------------------------
0 0 0 99 0 0 0 0xaaaac17d6000
-------------------------------------------------------------------------------
0.00% 0.00% 6.06% 0.00% 0.00% 0.00% 0x20 N/A 0 0xaaaac17c25ac 0 0 43 375 18469 2 [.] 0x00000000000025ac memstress memstress[25ac] 0
0.00% 0.00% 93.94% 0.00% 0.00% 0.00% 0x29 N/A 0 0xaaaac17c3e88 0 0 173 180 135 2 [.] 0x0000000000003e88 memstress memstress[3e88] 0
Fixes: 5a1a99cd2e4e1557 ("perf c2c report: Add main TUI browser")
Reported-by: Joe Mario <jmario@redhat.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.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>
Link: http://lore.kernel.org/lkml/20220526145400.611249-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
$ sudo ./perf test -v offcpu
88: perf record offcpu profiling tests :
--- start ---
test child forked, pid 685966
Basic off-cpu test
Basic off-cpu test [Success]
test child finished with 0
---- end ----
perf record offcpu profiling tests: Ok
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
This covers two different use cases. The first one is cgroup
filtering given by -G/--cgroup option which controls the off-cpu
profiling for tasks in the given cgroups only.
The other use case is cgroup sampling which is enabled by
--all-cgroups option and it adds PERF_SAMPLE_CGROUP to the sample_type
to set the cgroup id of the task in the sample data.
Example output.
$ sudo perf record -a --off-cpu --all-cgroups sleep 1
$ sudo perf report --stdio -s comm,cgroup --call-graph=no
...
# Samples: 144 of event 'offcpu-time'
# Event count (approx.): 48452045427
#
# Children Self Command Cgroup
# ........ ........ ............... ..........................................
#
61.57% 5.60% Chrome_ChildIOT /user.slice/user-657345.slice/user@657345.service/app.slice/...
29.51% 7.38% Web Content /user.slice/user-657345.slice/user@657345.service/app.slice/...
17.48% 1.59% Chrome_IOThread /user.slice/user-657345.slice/user@657345.service/app.slice/...
16.48% 4.12% pipewire-pulse /user.slice/user-657345.slice/user@657345.service/session.slice/...
14.48% 2.07% perf /user.slice/user-657345.slice/user@657345.service/app.slice/...
14.30% 7.15% CompositorTileW /user.slice/user-657345.slice/user@657345.service/app.slice/...
13.33% 6.67% Timer /user.slice/user-657345.slice/user@657345.service/app.slice/...
...
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Recently sched_switch tracepoint added a new argument for prev_state,
but it's hard to handle the change in a BPF program. Instead, we can
check the function prototype in BTF before loading the program.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
It should honor cpu and task filtering with -a, -C or -p, -t options.
Committer testing:
# perf record --off-cpu --cpu 1 perf bench sched messaging -l 1000
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 1.722 [sec]
[ perf record: Woken up 2 times to write data ]
[ perf record: Captured and wrote 1.446 MB perf.data (7248 samples) ]
#
# perf script | head -20
perf 97164 [001] 38287.696761: 1 cycles: ffffffffb6070174 native_write_msr+0x4 (vmlinux)
perf 97164 [001] 38287.696764: 1 cycles: ffffffffb6070174 native_write_msr+0x4 (vmlinux)
perf 97164 [001] 38287.696765: 9 cycles: ffffffffb6070174 native_write_msr+0x4 (vmlinux)
perf 97164 [001] 38287.696767: 212 cycles: ffffffffb6070176 native_write_msr+0x6 (vmlinux)
perf 97164 [001] 38287.696768: 5130 cycles: ffffffffb6070176 native_write_msr+0x6 (vmlinux)
perf 97164 [001] 38287.696770: 123063 cycles: ffffffffb6e0011e syscall_return_via_sysret+0x38 (vmlinux)
perf 97164 [001] 38287.696803: 2292748 cycles: ffffffffb636c82d __fput+0xad (vmlinux)
swapper 0 [001] 38287.702852: 1927474 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
:97513 97513 [001] 38287.767207: 1172536 cycles: ffffffffb612ff65 newidle_balance+0x5 (vmlinux)
swapper 0 [001] 38287.769567: 1073081 cycles: ffffffffb618216d ktime_get_mono_fast_ns+0xd (vmlinux)
:97533 97533 [001] 38287.770962: 984460 cycles: ffffffffb65b2900 selinux_socket_sendmsg+0x0 (vmlinux)
:97540 97540 [001] 38287.772242: 883462 cycles: ffffffffb6d0bf59 irqentry_exit_to_user_mode+0x9 (vmlinux)
swapper 0 [001] 38287.773633: 741963 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
:97552 97552 [001] 38287.774539: 606680 cycles: ffffffffb62eda0a page_add_file_rmap+0x7a (vmlinux)
:97556 97556 [001] 38287.775333: 502254 cycles: ffffffffb634f964 get_obj_cgroup_from_current+0xc4 (vmlinux)
:97561 97561 [001] 38287.776163: 427891 cycles: ffffffffb61b1522 cgroup_rstat_updated+0x22 (vmlinux)
swapper 0 [001] 38287.776854: 359030 cycles: ffffffffb612fc5e load_balance+0x9ce (vmlinux)
:97567 97567 [001] 38287.777312: 330371 cycles: ffffffffb6a8d8d0 skb_set_owner_w+0x0 (vmlinux)
:97566 97566 [001] 38287.777589: 311622 cycles: ffffffffb614a7a8 native_queued_spin_lock_slowpath+0x148 (vmlinux)
:97512 97512 [001] 38287.777671: 307851 cycles: ffffffffb62e0f35 find_vma+0x55 (vmlinux)
#
# perf record --off-cpu --cpu 4 perf bench sched messaging -l 1000
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 1.613 [sec]
[ perf record: Woken up 2 times to write data ]
[ perf record: Captured and wrote 1.415 MB perf.data (6729 samples) ]
# perf script | head -20
perf 97650 [004] 38323.728036: 1 cycles: ffffffffb6070174 native_write_msr+0x4 (vmlinux)
perf 97650 [004] 38323.728040: 1 cycles: ffffffffb6070174 native_write_msr+0x4 (vmlinux)
perf 97650 [004] 38323.728041: 9 cycles: ffffffffb6070174 native_write_msr+0x4 (vmlinux)
perf 97650 [004] 38323.728042: 208 cycles: ffffffffb6070176 native_write_msr+0x6 (vmlinux)
perf 97650 [004] 38323.728044: 5026 cycles: ffffffffb6070176 native_write_msr+0x6 (vmlinux)
perf 97650 [004] 38323.728046: 119970 cycles: ffffffffb6d0bebc syscall_exit_to_user_mode+0x1c (vmlinux)
perf 97650 [004] 38323.728078: 2190103 cycles: 54b756 perf_tool__process_synth_event+0x16 (/home/acme/bin/perf)
swapper 0 [004] 38323.783357: 1593139 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
swapper 0 [004] 38323.785352: 1593139 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
swapper 0 [004] 38323.797330: 1418936 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
swapper 0 [004] 38323.802350: 1418936 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
swapper 0 [004] 38323.806333: 1418936 cycles: ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
:97996 97996 [004] 38323.807145: 1418936 cycles: 7f5db9be6917 [unknown] ([unknown])
:97959 97959 [004] 38323.807730: 1445074 cycles: ffffffffb6329d36 memcg_slab_post_alloc_hook+0x146 (vmlinux)
:97959 97959 [004] 38323.808103: 1341584 cycles: ffffffffb62fd90f get_page_from_freelist+0x112f (vmlinux)
:97959 97959 [004] 38323.808451: 1227537 cycles: ffffffffb65b2905 selinux_socket_sendmsg+0x5 (vmlinux)
:97959 97959 [004] 38323.808768: 1184321 cycles: ffffffffb6d1ba35 _raw_spin_lock_irqsave+0x15 (vmlinux)
:97959 97959 [004] 38323.809073: 1153017 cycles: ffffffffb6a8d92d skb_set_owner_w+0x5d (vmlinux)
:97959 97959 [004] 38323.809402: 1126875 cycles: ffffffffb6329c64 memcg_slab_post_alloc_hook+0x74 (vmlinux)
:97959 97959 [004] 38323.809695: 1073248 cycles: ffffffffb6e0001d entry_SYSCALL_64+0x1d (vmlinux)
#
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add --off-cpu option to enable the off-cpu profiling with BPF. It'd
use a bpf_output event and rename it to "offcpu-time". Samples will
be synthesized at the end of the record session using data from a BPF
map which contains the aggregated off-cpu time at context switches.
So it needs root privilege to get the off-cpu profiling.
Each sample will have a separate user stacktrace so it will skip
kernel threads. The sample ip will be set from the stacktrace and
other sample data will be updated accordingly. Currently it only
handles some basic sample types.
The sample timestamp is set to a dummy value just not to bother with
other events during the sorting. So it has a very big initial value
and increase it on processing each samples.
Good thing is that it can be used together with regular profiling like
cpu cycles. If you don't want to that, you can use a dummy event to
enable off-cpu profiling only.
Example output:
$ sudo perf record --off-cpu perf bench sched messaging -l 1000
$ sudo perf report --stdio --call-graph=no
# Total Lost Samples: 0
#
# Samples: 41K of event 'cycles'
# Event count (approx.): 42137343851
...
# Samples: 1K of event 'offcpu-time'
# Event count (approx.): 587990831640
#
# Children Self Command Shared Object Symbol
# ........ ........ ............... .................. .........................
#
81.66% 0.00% sched-messaging libc-2.33.so [.] __libc_start_main
81.66% 0.00% sched-messaging perf [.] cmd_bench
81.66% 0.00% sched-messaging perf [.] main
81.66% 0.00% sched-messaging perf [.] run_builtin
81.43% 0.00% sched-messaging perf [.] bench_sched_messaging
40.86% 40.86% sched-messaging libpthread-2.33.so [.] __read
37.66% 37.66% sched-messaging libpthread-2.33.so [.] __write
2.91% 2.91% sched-messaging libc-2.33.so [.] __poll
...
As you can see it spent most of off-cpu time in read and write in
bench_sched_messaging(). The --call-graph=no was added just to make
the output concise here.
It uses perf hooks facility to control BPF program during the record
session rather than adding new BPF/off-cpu specific calls.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Currently evsel__new_idx() sets more sample_type bits when it finds a
BPF-output event. But it should honor what's recorded in the perf
data file rather than blindly sets the bits. Otherwise it could lead
to a parse error when it recorded with a modified sample_type.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Counts expected fields for various commands. No testing added for
summary mode since it is broken.
An example of the summary output is:
summary,263831,,instructions:u,1435072,100.0,0.46,insn per cycle
,,,,,1.37,stalled cycles per insn
This should be:
summary,263831,,instructions:u,1435072,100.0,0.46,insn per cycle
summary,,,,,,1.37,stalled cycles per insn
The output has 7 fields when it should have 8. Additionally, the newline
spacing is wrong, so it was excluded from testing until a fix is made.
Committer testing:
$ perf test "perf stat CSV output"
88: perf stat CSV output linter : Ok
$
$ perf test -v "perf stat CSV output"
Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc
88: perf stat CSV output linter :
--- start ---
test child forked, pid 2622839
Checking CSV output: no args [Success]
Checking CSV output: system wide [Skip] paranoid and not root
Checking CSV output: system wide [Skip] paranoid and not root
Checking CSV output: interval [Success]
Checking CSV output: event [Success]
Checking CSV output: per core [Skip] paranoid and not root
Checking CSV output: per thread [Skip] paranoid and not root
Checking CSV output: per die [Skip] paranoid and not root
Checking CSV output: per node [Skip] paranoid and not root
Checking CSV output: per socket [Skip] paranoid and not root
test child finished with 0
---- end ----
perf stat CSV output linter: Ok
$
I did a s/parnoia/paranoid/g on the [Skip] lines.
Signed-off-by: Claire Jensen <cjense@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alyssa Ross <hi@alyssa.is>
Cc: Claire Jensen <clairej735@gmail.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220525053814.3265216-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
System-wide events do not have threads, so do not propagate threads to
them.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-16-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Currently, user_requested_cpus supplants system-wide CPUs when the evlist
has_user_cpus. Change that so that system-wide events retain their own
CPUs and they are added to all_cpus.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-15-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add comments for 'system_wide' and 'requires_cpu' booleans
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-14-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Uncore events require a CPU i.e. it cannot be -1.
The evsel system_wide flag is intended for events that should be on every
CPU, which does not make sense for uncore events because uncore events do
not map one-to-one with CPUs.
These 2 requirements are not exactly the same, so introduce a new flag
'requires_cpu' for the uncore case.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-13-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Print an error message if the predetermined number of mmaps is
incorrect.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
mmap_per_evsel() will skip events that do not match the CPU, so all CPUs
can be iterated in any case.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
To support collection of system-wide events with user requested CPUs,
all_cpus must be a superset of user_requested_cpus.
In order to support all_cpus to be a superset of user_requested_cpus,
all_cpus must be used instead of user_requested_cpus when dealing with CPUs
of all events instead of CPUs of requested events.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
User space tasks can migrate between CPUs, so when tracing selected CPUs,
sideband for all CPUs is still needed. This is in preparation for allowing
system-wide events on all CPUs while the user requested events are on only
user requested CPUs.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-9-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Use evlist__add_dummy_on_all_cpus() for switch tracking in preparation for
allowing system-wide events on all CPUs while the user requested events are
on only user requested CPUs.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Use evlist__add_dummy_on_all_cpus() in record__config_text_poke() in
preparation for allowing system-wide events on all CPUs while the user
requested events are on only user requested CPUs.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add evlist__add_dummy_on_all_cpus() to enable creating a system-wide dummy
event that sets up the system-wide maps before map propagation.
For convenience, add evlist__add_aux_dummy() so that the logic can be used
whether or not the event needs to be system-wide.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Factor out evlist__dummy_event() so it can be reused.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Remove auxtrace_mmap_params__set_idx() per_cpu parameter because it isn't
needed.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add mmap_needed to auxtrace_mmap_params.
Currently an auxtrace mmap is always attempted even if the event is not an
auxtrace event. That works because, when AUX area tracing, there is always
an auxtrace event first for every mmap. Prepare for that not being the
case, which it won't be when sideband tracking events are allowed on
all CPUs even when auxtrace is limited to selected CPUs.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add a test for system-wide side band even when tracing selected CPUs.
The test fails before the patches up to "perf tools: Allow system-wide
events to keep their own CPUs" are applied, passes afterwards.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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By adding a feature test for bpf_map_create() and providing a fallback if
it isn't present in older versions of libbpf.
This also fixes the build with torvalds/master at this point:
$ git log --oneline -5 torvalds/master
babf0bb978e3c9fc (torvalds/master) Merge tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
e375780b631a5fc2 Merge tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
8b728edc5be16179 Merge tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
3f306ea2e18568f6 Merge tag 'dma-mapping-5.19-2022-05-25' of git://git.infradead.org/users/hch/dma-mapping
fbe86daca0ba878b Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
$
Coping with:
$ git log --oneline -2 d16495a982324f75
d16495a982324f75 libbpf: remove bpf_create_map*() APIs
e2371b1632b1c61c libbpf: start 1.0 development cycle
$
As the __weak function fails to build as it calls the now removed
bpf_create_map() API.
Testing:
$ rpm -q libbpf-devel
libbpf-devel-0.4.0-2.fc35.x86_64
$
$ make -C tools/perf BUILD_BPF_SKEL=1 LIBBPF_DYNAMIC=1 O=/tmp/build/perf install-bin
$ cat /tmp/build/perf/feature/test-libbpf-bpf_map_create.make.output
test-libbpf-bpf_map_create.c: In function ‘main’:
test-libbpf-bpf_map_create.c:6:16: error: implicit declaration of function ‘bpf_map_create’; did you mean ‘bpf_map_freeze’? [-Werror=implicit-function-declaration]
6 | return bpf_map_create(0 /* map_type */, NULL /* map_name */, 0, /* key_size */,
| ^~~~~~~~~~~~~~
| bpf_map_freeze
test-libbpf-bpf_map_create.c:6:87: error: expected expression before ‘,’ token
6 | return bpf_map_create(0 /* map_type */, NULL /* map_name */, 0, /* key_size */,
| ^
cc1: all warnings being treated as errors
$
$ objdump -dS /tmp/build/perf/perf | grep '<bpf_map_create>:' -A20
000000000058b290 <bpf_map_create>:
{
58b290: 55 push %rbp
58b291: 48 89 e5 mov %rsp,%rbp
58b294: 48 83 ec 10 sub $0x10,%rsp
58b298: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
58b29f: 00 00
58b2a1: 48 89 45 f8 mov %rax,-0x8(%rbp)
58b2a5: 31 c0 xor %eax,%eax
return bpf_create_map(map_type, key_size, value_size, max_entries, 0);
58b2a7: 48 8b 45 f8 mov -0x8(%rbp),%rax
58b2ab: 64 48 2b 04 25 28 00 sub %fs:0x28,%rax
58b2b2: 00 00
58b2b4: 75 10 jne 58b2c6 <bpf_map_create+0x36>
}
58b2b6: c9 leave
58b2b7: 89 d6 mov %edx,%esi
58b2b9: 89 ca mov %ecx,%edx
58b2bb: 44 89 c1 mov %r8d,%ecx
return bpf_create_map(map_type, key_size, value_size, max_entries, 0);
58b2be: 45 31 c0 xor %r8d,%r8d
$
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/linux-perf-users/Yo+XvQNKL4K5khl2@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Now that there are no more callers of nfsd_file_put() that might
hold a spin lock, ensure the lockdep infrastructure can catch
newly introduced calls to nfsd_file_put() made while a spinlock
is held.
Link: https://lore.kernel.org/linux-nfs/ece7fd1d-5fb3-5155-54ba-347cfc19bd9a@oracle.com/T/#mf1855552570cf9a9c80d1e49d91438cd9085aada
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
|
