Add Cortex-A720, Cortex-A725, Cortex-X1C, Cortex-X3 and Cortex-X925 into
the common data source encoding list. For everyone of these CPUs, it
technical reference manual defines the data source packet as the common
encoding format.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-8-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Add Neoverse-V2 MIDR to the common data source encoding range list.
Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com>
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-7-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The 'midr' field is replaced by the MIDR values stored in metadata (per
CPU wise). Remove the 'midr' field as it is no longer used.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-6-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Use the info in the metadata to decide if the data source feature is
supported. The CPU MIDR must be in the CPU list for the common data
source encoding.
For the metadata version 1, it doesn't include info for MIDR. In this
case, due to absent info for making decision, print out warning to
remind users to upgrade tool and returns false.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-5-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Introduce the arm_spe__is_homogeneous() function, it uses to check if
Arm SPE is homogeneous cross all CPUs.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-4-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The Neoverse CPUs follow the common data source encoding, and other
CPU variants can share the same format.
Rename the CPU list and data source definitions as common data source
names. This change prepares for appending more CPU variants.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-3-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The arm_spe__synth_data_source_generic() function is invoked when the
tool detects that CPUs do not support data source packets and falls back
to synthesizing only the memory level.
Rename it to arm_spe__synth_memory_level() for better reflecting its
purpose.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20241003185322.192357-2-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
As Ian Rogers <irogers@google.com> pointed out, intel-cqm.c is neither
used nor built. It was deleted in the following commit:
commit b24413180f ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license")
However, it resurfaced soon after in the following commit:
commit 5c9295bfe6 ("perf tests: Remove Intel CQM perf test")
It should be deleted once and for all.
Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Howard Chu <howardchu95@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Matt Fleming <mfleming@cloudflare.com>
Link: https://lore.kernel.org/r/20241011055700.4142694-1-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
It should not clear the inherit bit simply because the kernel doesn't
support the sample read with it. IOW the inherit bit should be kept
when the sample read is not requested for the event.
Fixes: 90035d3cd8 ("tools/perf: Allow inherit + PERF_SAMPLE_READ when opening events")
Acked-by: Ben Gainey <ben.gainey@arm.com>
Link: https://lore.kernel.org/r/20241009062250.730192-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
pre-migration wait time is the time that a task unnecessarily spends
on the runqueue of a CPU but doesn't get switched-in there. In terms
of tracepoints, it is the time between sched:sched_wakeup and
sched:sched_migrate_task.
Let's say a task woke up on CPU2, then it got migrated to CPU4 and
then it's switched-in to CPU4. So, here pre-migration wait time is
time that it was waiting on runqueue of CPU2 after it is woken up.
The general pattern for pre-migration to occur is:
sched:sched_wakeup
sched:sched_migrate_task
sched:sched_switch
The sched:sched_waking event is used to capture the wakeup time,
as it aligns with the existing code and only introduces a negligible
time difference.
pre-migrations are generally not useful and it increases migrations.
This metric would be helpful in testing patches mainly related to wakeup
and load-balancer code paths as better wakeup logic would choose an
optimal CPU where task would be switched-in and thereby reducing pre-
migrations.
The sample output(s) when -P or --pre-migrations is used:
=================
time cpu task name wait time sch delay run time pre-mig time
[tid/pid] (msec) (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- --------- ---------
38456.720806 [0001] schbench[28634/28574] 4.917 4.768 1.004 0.000
38456.720810 [0001] rcu_preempt[18] 3.919 0.003 0.004 0.000
38456.721800 [0006] schbench[28779/28574] 23.465 23.465 1.999 0.000
38456.722800 [0002] schbench[28773/28574] 60.371 60.237 3.955 60.197
38456.722806 [0001] schbench[28634/28574] 0.004 0.004 1.996 0.000
38456.722811 [0001] rcu_preempt[18] 1.996 0.005 0.005 0.000
38456.723800 [0000] schbench[28833/28574] 4.000 4.000 3.999 0.000
38456.723800 [0004] schbench[28762/28574] 42.951 42.839 3.999 39.867
38456.723802 [0007] schbench[28812/28574] 43.947 43.817 3.999 40.866
38456.723804 [0001] schbench[28587/28574] 7.935 7.822 0.993 0.000
Signed-off-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Link: https://lore.kernel.org/r/20241004170756.18064-1-vineethr@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The hashmap__for_each_entry[_safe] is accessing 'map' as if it's a
pointer. But it does without parentheses so passing a static hash map
with an ampersand (like &slab_hash below) caused compiler warnings due
to unmatched types.
In file included from util/bpf_lock_contention.c:5:
util/bpf_lock_contention.c: In function ‘exit_slab_cache_iter’:
linux/tools/perf/util/hashmap.h:169:32: error: invalid type argument of ‘->’ (have ‘struct hashmap’)
169 | for (bkt = 0; bkt < map->cap; bkt++) \
| ^~
util/bpf_lock_contention.c:105:9: note: in expansion of macro ‘hashmap__for_each_entry’
105 | hashmap__for_each_entry(&slab_hash, cur, bkt)
| ^~~~~~~~~~~~~~~~~~~~~~~
/home/namhyung/project/linux/tools/perf/util/hashmap.h:170:31: error: invalid type argument of ‘->’ (have ‘struct hashmap’)
170 | for (cur = map->buckets[bkt]; cur; cur = cur->next)
| ^~
util/bpf_lock_contention.c:105:9: note: in expansion of macro ‘hashmap__for_each_entry’
105 | hashmap__for_each_entry(&slab_hash, cur, bkt)
| ^~~~~~~~~~~~~~~~~~~~~~~
Cc: bpf@vger.kernel.org
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20241009202009.884884-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'v6.12-rc3' into perf-tools-next
To get the fixes in the current perf-tools tree.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
util/tool_pmu.c: In function 'evsel__tool_pmu_read':
util/tool_pmu.c:419:55: error: passing argument 2 of 'tool_pmu__read_event' from incompatible pointer type [-Werror=incompatible-pointer-types]
419 | if (!tool_pmu__read_event(ev, &val)) {
| ^~~~
| |
| long unsigned int *
util/tool_pmu.c:335:56: note: expected 'u64 *' {aka 'long long unsigned int *'} but argument is of type 'long unsigned int *'
335 | bool tool_pmu__read_event(enum tool_pmu_event ev, u64 *result)
| ~~~~~^~~~~~
Link: https://lore.kernel.org/r/Zw1XIGML32VaxE0t@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The testcase for tool_pmu failed in powerpc as below:
./perf test -v "Parsing without PMU name"
8: Tool PMU :
8.1: Parsing without PMU name : FAILED!
This happens when parse_events results in either skip or fail
of an event. Because the code invokes evlist__delete(evlist)
and "goto out".
ret = parse_events(evlist, str, &err);
if (ret) {
evlist__delete(evlist);
But in the "out" section also evlist__delete happens.
out:
evlist__delete(evlist);
return ret;
Hence remove the duplicate evlist__delete from the first path
in the testcase
With the change:
# ./perf test -v "Parsing without PMU name"
8: Tool PMU :
8.1: Parsing without PMU name : Ok
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: akanksha@linux.ibm.com
Cc: hbathini@linux.ibm.com
Cc: kjain@linux.ibm.com
Cc: maddy@linux.ibm.com
Cc: disgoel@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20241013170732.71339-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
perf fails to compile on systems with GCC version11
as below:
In file included from /usr/include/string.h:519,
from /home/athir/perf-tools-next/tools/include/linux/bitmap.h:5,
from /home/athir/perf-tools-next/tools/perf/util/pmu.h:5,
from /home/athir/perf-tools-next/tools/perf/util/evsel.h:14,
from /home/athir/perf-tools-next/tools/perf/util/evlist.h:14,
from tests/tool_pmu.c:3:
In function ‘strncpy’,
inlined from ‘do_test’ at tests/tool_pmu.c:25:3:
/usr/include/bits/string_fortified.h:95:10: error: ‘__builtin_strncpy’ specified bound 128 equals destination size [-Werror=stringop-truncation]
95 | return __builtin___strncpy_chk (__dest, __src, __len,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
96 | __glibc_objsize (__dest));
| ~~~~~~~~~~~~~~~~~~~~~~~~~
The compile error is from strncpy refernce in do_test:
strncpy(str, tool_pmu__event_to_str(ev), sizeof(str));
This behaviour is not observed with GCC version 8, but observed
with GCC version 11 . This is message from gcc for detecting
truncation while using strncpu. Use snprintf instead of strncpy
here to be safe.
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: akanksha@linux.ibm.com
Cc: hbathini@linux.ibm.com
Cc: kjain@linux.ibm.com
Cc: maddy@linux.ibm.com
Cc: disgoel@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20241013173742.71882-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag '6.12-rc2-cifs-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Two fixes for Windows symlink handling"
* tag '6.12-rc2-cifs-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix creating native symlinks pointing to current or parent directory
cifs: Improve creating native symlinks pointing to directory
Here are some small USB fixes for some reported problems for 6.12-rc3.
Include in here is:
- fix for yurex driver that was caused in -rc1
- build error fix for usbg network filesystem code
- onboard_usb_dev build fix
- dwc3 driver fixes for reported errors
- gadget driver fix
- new USB storage driver quirk
- xhci resume bugfix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for some reported problems for 6.12-rc3.
Include in here is:
- fix for yurex driver that was caused in -rc1
- build error fix for usbg network filesystem code
- onboard_usb_dev build fix
- dwc3 driver fixes for reported errors
- gadget driver fix
- new USB storage driver quirk
- xhci resume bugfix
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
net/9p/usbg: Fix build error
USB: yurex: kill needless initialization in yurex_read
Revert "usb: yurex: Replace snprintf() with the safer scnprintf() variant"
usb: xhci: Fix problem with xhci resume from suspend
usb: misc: onboard_usb_dev: introduce new config symbol for usb5744 SMBus support
usb: dwc3: core: Stop processing of pending events if controller is halted
usb: dwc3: re-enable runtime PM after failed resume
usb: storage: ignore bogus device raised by JieLi BR21 USB sound chip
usb: gadget: core: force synchronous registration
Here is a single driver core fix, and a .mailmap update, for 6.12-rc3.
The fix is for the rust driver core bindings, turned out that the
from_raw binding wasn't a good idea (don't want to pass a pointer to a
reference counted object without actually incrementing the pointer.) So
this change fixes it up as the from_raw binding came in in -rc1.
The other change is a .mailmap update.
Both have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here is a single driver core fix, and a .mailmap update.
The fix is for the rust driver core bindings, turned out that the
from_raw binding wasn't a good idea (don't want to pass a pointer to a
reference counted object without actually incrementing the pointer.)
So this change fixes it up as the from_raw binding came in in -rc1.
The other change is a .mailmap update.
Both have been in linux-next for a while with no reported issues"
* tag 'driver-core-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
mailmap: update mail for Fiona Behrens
rust: device: change the from_raw() function
- Fix crash in memcpy on 8xx due to dcbz workaround since recent changes.
Thanks to: Christophe Leroy.
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Merge tag 'powerpc-6.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
- Fix crash in memcpy on 8xx due to dcbz workaround since recent
changes
Thanks to Christophe Leroy.
* tag 'powerpc-6.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/8xx: Fix kernel DTLB miss on dcbz
four small fixes, three in drivers and one in the FC transport class
to add idempotence to state setting.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four small fixes, three in drivers and one in the FC transport class
to add idempotence to state setting"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_transport_fc: Allow setting rport state to current state
scsi: wd33c93: Don't use stale scsi_pointer value
scsi: fnic: Move flush_work initialization out of if block
scsi: ufs: Use pre-calculated offsets in ufshcd_init_lrb()
- Add missing dependencies on REGMAP_I2C for several drivers
- Fix memory leak in adt7475 driver
- Relabel Columbiaville temperature sensor in intel-m10-bmc-hwmon driver
to match other sensor labels
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Merge tag 'hwmon-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Add missing dependencies on REGMAP_I2C for several drivers
- Fix memory leak in adt7475 driver
- Relabel Columbiaville temperature sensor in intel-m10-bmc-hwmon
driver to match other sensor labels
* tag 'hwmon-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (max1668) Add missing dependency on REGMAP_I2C
hwmon: (ltc2991) Add missing dependency on REGMAP_I2C
hwmon: (adt7470) Add missing dependency on REGMAP_I2C
hwmon: (adm9240) Add missing dependency on REGMAP_I2C
hwmon: (mc34vr500) Add missing dependency on REGMAP_I2C
hwmon: (tmp513) Add missing dependency on REGMAP_I2C
hwmon: (adt7475) Fix memory leak in adt7475_fan_pwm_config()
hwmon: intel-m10-bmc-hwmon: relabel Columbiaville to CVL Die Temperature
This kselftest update for Linux 6.12-rc3 consists of several fixes
for build, run-time errors, and reporting errors:
-- ftrace: regression test for a kernel crash when running function graph
tracing and then enabling function profiler.
-- rseq: fix for mm_cid test failure.
-- vDSO:
- fixes to reporting skip and other error conditions.
- changes unconditionally build chacha and getrandom tests on
all architectures to make it easier for them to run in CIs.
- build error when sched.h to bring in CLONE_NEWTIME define.
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Merge tag 'linux_kselftest-fixes-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"Fixes for build, run-time errors, and reporting errors:
- ftrace: regression test for a kernel crash when running function
graph tracing and then enabling function profiler.
- rseq: fix for mm_cid test failure.
- vDSO:
- fixes to reporting skip and other error conditions
- changes unconditionally build chacha and getrandom tests on all
architectures to make it easier for them to run in CIs
- build error when sched.h to bring in CLONE_NEWTIME define"
* tag 'linux_kselftest-fixes-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
ftrace/selftest: Test combination of function_graph tracer and function profiler
selftests/rseq: Fix mm_cid test failure
selftests: vDSO: Explicitly include sched.h
selftests: vDSO: improve getrandom and chacha error messages
selftests: vDSO: unconditionally build getrandom test
selftests: vDSO: unconditionally build chacha test
- Disable kunit tests for arm64+ACPI
- Fix refcount issue in kunit tests
- Drop constraints on non-conformant 'interrupt-map' in fsl,ls-extirq
- Drop type ref on 'msi-parent in fsl,qoriq-mc binding
- Move elgin,jg10309-01 to its own binding from trivial-devices
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Merge tag 'devicetree-fixes-for-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Disable kunit tests for arm64+ACPI
- Fix refcount issue in kunit tests
- Drop constraints on non-conformant 'interrupt-map' in fsl,ls-extirq
- Drop type ref on 'msi-parent in fsl,qoriq-mc binding
- Move elgin,jg10309-01 to its own binding from trivial-devices
* tag 'devicetree-fixes-for-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Skip kunit tests when arm64+ACPI doesn't populate root node
of: Fix unbalanced of node refcount and memory leaks
dt-bindings: interrupt-controller: fsl,ls-extirq: workaround wrong interrupt-map number
dt-bindings: misc: fsl,qoriq-mc: remove ref for msi-parent
dt-bindings: display: elgin,jg10309-01: Add own binding
- switch fbdev drivers back to struct platform_driver::remove()
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Merge tag 'fbdev-for-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev platform driver fix from Helge Deller:
"Switch fbdev drivers back to struct platform_driver::remove()
Now that 'remove()' has been converted to the sane new API, there's
no reason for the 'remove_new()' use, so this converts back to the
traditional and simpler name.
See commits
5c5a7680e6 ("platform: Provide a remove callback that returns no value")
0edb555a65 ("platform: Make platform_driver::remove() return void")
for background to this all"
* tag 'fbdev-for-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: Switch back to struct platform_driver::remove()
- fix clock handle leak in probe() error path in gpio-aspeed
- add a dummy register read to ensure the write actually completed
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Merge tag 'gpio-fixes-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix clock handle leak in probe() error path in gpio-aspeed
- add a dummy register read to ensure the write actually completed
* tag 'gpio-fixes-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: aspeed: Use devm_clk api to manage clock source
gpio: aspeed: Add the flush write to ensure the write complete.
Localio Bugfixes:
* Remove duplicated include in localio.c
* Fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
* Fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
* Fix nfsd_file tracepoints to handle NULL rqstp pointers
Other Bugfixes:
* Fix program selection loop in svc_process_common
* Fix integer overflow in decode_rc_list()
* Prevent NULL-pointer dereference in nfs42_complete_copies()
* Fix CB_RECALL performance issues when using a large number of delegations
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Merge tag 'nfs-for-6.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"Localio Bugfixes:
- remove duplicated include in localio.c
- fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
- fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
- fix nfsd_file tracepoints to handle NULL rqstp pointers
Other Bugfixes:
- fix program selection loop in svc_process_common
- fix integer overflow in decode_rc_list()
- prevent NULL-pointer dereference in nfs42_complete_copies()
- fix CB_RECALL performance issues when using a large number of
delegations"
* tag 'nfs-for-6.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: remove revoked delegation from server's delegation list
nfsd/localio: fix nfsd_file tracepoints to handle NULL rqstp
nfs_common: fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
nfs_common: fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
SUNRPC: Fix integer overflow in decode_rc_list()
sunrpc: fix prog selection loop in svc_process_common
nfs: Remove duplicated include in localio.c
Fix rcuog kthread wakeup invocation from softirq context on a CPU
which has been marked offline. This can happen when new callbacks
are enqueued from a softirq on an offline CPU before it calls
rcutree_report_cpu_dead(). When this happens on NOCB configuration,
the rcuog wake-up is deferred through an IPI to an online CPU.
This is done to avoid call into the scheduler which can risk
arming the RT-bandwidth after hrtimers have been migrated out
and disabled. However, doing IPI call from softirq is not allowed
Fix this by forcing deferred rcuog wakeup through the NOCB timer
when the CPU is offline.
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Merge tag 'rcu.fixes.6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU fix from Neeraj Upadhyay:
"Fix rcuog kthread wakeup invocation from softirq context on a CPU
which has been marked offline.
This can happen when new callbacks are enqueued from a softirq on an
offline CPU before it calls rcutree_report_cpu_dead(). When this
happens on NOCB configuration, the rcuog wake-up is deferred through
an IPI to an online CPU. This is done to avoid call into the scheduler
which can risk arming the RT-bandwidth after hrtimers have been
migrated out and disabled.
However, doing IPI call from softirq is not allowed: Fix this by
forcing deferred rcuog wakeup through the NOCB timer when the CPU is
offline"
* tag 'rcu.fixes.6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux:
rcu/nocb: Fix rcuog wake-up from offline softirq
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Merge tag 'for-linus-6.12a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"A fix for topology information of Xen PV guests"
* tag 'for-linus-6.12a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: mark boot CPU of PV guest in MSR_IA32_APICBASE
Masami reported a bug when running function graph tracing then the
function profiler. The following commands would cause a kernel crash:
# cd /sys/kernel/tracing/
# echo function_graph > current_tracer
# echo 1 > function_profile_enabled
In that order. Create a test to test this two to make sure this does not
come back as a regression.
Link: https://lore.kernel.org/172398528350.293426.8347220120333730248.stgit@devnote2
Link: https://lore.kernel.org/all/20241010165235.35122877@gandalf.local.home/
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Merge tag 'io_uring-6.12-20241011' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Explicitly have a mshot_finished condition for IORING_OP_RECV in
multishot mode, similarly to what IORING_OP_RECVMSG has. This doesn't
fix a bug right now, but it makes it harder to actually have a bug
here if a request takes multiple iterations to finish.
- Fix handling of retry of read/write of !FMODE_NOWAIT files. If they
are pollable, that's all we need.
* tag 'io_uring-6.12-20241011' of git://git.kernel.dk/linux:
io_uring/rw: allow pollable non-blocking attempts for !FMODE_NOWAIT
io_uring/rw: fix cflags posting for single issue multishot read
- Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part of
the Intel RAPL power capping driver, make it ignore minor hardware
version mismatches (which only indicate exposing additional features)
and update register definitions in it to enable PL4 support (Zhang
Rui).
- Add Arrow Lake-U to the list of processors supporting PL4 in the MSR
part of the Intel RAPL power capping driver (Sumeet Pawnikar).
- Remove excess pci_disable_device() calls from the processor part of
the int340x thermal driver to address a warning triggered during
module unload and remove unused CPU hotplug code related to RAPL
support from it (Zhang Rui).
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Merge tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These address two issues in the TPMI module of the Intel RAPL power
capping driver and one issue in the processor part of the Intel
int340x thermal driver, update a CPU ID list and register definitions
needed for RAPL PL4 support and remove some unused code.
Specifics:
- Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part
of the Intel RAPL power capping driver, make it ignore minor
hardware version mismatches (which only indicate exposing
additional features) and update register definitions in it to
enable PL4 support (Zhang Rui)
- Add Arrow Lake-U to the list of processors supporting PL4 in the
MSR part of the Intel RAPL power capping driver (Sumeet Pawnikar)
- Remove excess pci_disable_device() calls from the processor part of
the int340x thermal driver to address a warning triggered during
module unload and remove unused CPU hotplug code related to RAPL
support from it (Zhang Rui)"
* tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: int340x: processor: Add MMIO RAPL PL4 support
thermal: intel: int340x: processor: Remove MMIO RAPL CPU hotplug support
powercap: intel_rapl_msr: Add PL4 support for Arrowlake-U
powercap: intel_rapl_tpmi: Ignore minor version change
thermal: intel: int340x: processor: Fix warning during module unload
powercap: intel_rapl_tpmi: Fix bogus register reading
Address possible use-after-free scenarios during the processing of
thermal netlink commands and during thermal zone removal (Rafael
Wysocki).
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Merge tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Address possible use-after-free scenarios during the processing of
thermal netlink commands and during thermal zone removal (Rafael
Wysocki)"
* tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Free tzp copy along with the thermal zone
thermal: core: Reference count the zone in thermal_zone_get_by_id()
Reduce the number of ACPI IRQ override DMI quirks by combining quirks
that cover similar systems while making them cover additional models
at the same time (Hans de Goede).
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Merge tag 'acpi-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"Reduce the number of ACPI IRQ override DMI quirks by combining quirks
that cover similar systems while making them cover additional models
at the same time (Hans de Goede)"
* tag 'acpi-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: resource: Fold Asus Vivobook Pro N6506M* DMI quirks together
ACPI: resource: Fold Asus ExpertBook B1402C* and B1502C* DMI quirks together
ACPI: resource: Make Asus ExpertBook B2502 matches cover more models
ACPI: resource: Make Asus ExpertBook B2402 matches cover more models
- Prevent splat from warning when setting maximum DMA segment
MMC host:
- mvsdio: Drop sg_miter support for PIO as it didn't work
- sdhci-of-dwcmshc: Prevent stale interrupt for the T-Head 1520 variant
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Merge tag 'mmc-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Prevent splat from warning when setting maximum DMA segment
MMC host:
- mvsdio: Drop sg_miter support for PIO as it didn't work
- sdhci-of-dwcmshc: Prevent stale interrupt for the T-Head 1520
variant"
* tag 'mmc-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-of-dwcmshc: Prevent stale command interrupt handling
Revert "mmc: mvsdio: Use sg_miter for PIO"
mmc: core: Only set maximum DMA segment size if DMA is supported
- Fix a hibernate regression where the disk was needlessly spun down and
then immediately spun up both when entering and when resuming from
hibernation (me)
- Update the MAINTAINERS file to remove remnants from Jens maintainership
of libata (Damien)
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Merge tag 'ata-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Fix a hibernate regression where the disk was needlessly spun down
and then immediately spun up both when entering and when resuming
from hibernation (me)
- Update the MAINTAINERS file to remove remnants from Jens
maintainership of libata (Damien)
* tag 'ata-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Update MAINTAINERS file
ata: libata: avoid superfluous disk spin down + spin up during hibernation
sched:
- Avoid leaking lockdep map
fbdev-dma:
- Only clean up deferred I/O if instanciated
amdgpu:
- Fix invalid UBSAN warnings
- Fix artifacts in MPO transitions
- Hibernation fix
amdkfd:
- Fix an eviction fence leak
radeon:
- Add late register for connectors
- Always set GEM function pointers
i915:
- HDCP refcount fix
nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style
v3d:
- Stop active perfmon before destroying it
vc4:
- Stop active perfmon before destroying it
xe:
- Drop GuC submit_wq pool
- Fix error checking with xa_store()
- Fix missing freq restore on GSC load error
- Fix wedged_mode file permission
- Fix use-after-free in ct communication
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Merge tag 'drm-fixes-2024-10-11' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly fixes haul for drm, lots of small fixes all over, amdgpu, xe
lead the way, some minor nouveau and radeon fixes, and then a bunch of
misc all over.
Nothing too scary or out of the unusual.
sched:
- Avoid leaking lockdep map
fbdev-dma:
- Only clean up deferred I/O if instanciated
amdgpu:
- Fix invalid UBSAN warnings
- Fix artifacts in MPO transitions
- Hibernation fix
amdkfd:
- Fix an eviction fence leak
radeon:
- Add late register for connectors
- Always set GEM function pointers
i915:
- HDCP refcount fix
nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style
v3d:
- Stop active perfmon before destroying it
vc4:
- Stop active perfmon before destroying it
xe:
- Drop GuC submit_wq pool
- Fix error checking with xa_store()
- Fix missing freq restore on GSC load error
- Fix wedged_mode file permission
- Fix use-after-free in ct communication"
* tag 'drm-fixes-2024-10-11' of https://gitlab.freedesktop.org/drm/kernel:
drm/fbdev-dma: Only cleanup deferred I/O if necessary
drm/xe: Make wedged_mode debugfs writable
drm/xe: Restore GT freq on GSC load error
drm/xe/guc_submit: fix xa_store() error checking
drm/xe/ct: fix xa_store() error checking
drm/xe/ct: prevent UAF in send_recv()
drm/radeon: always set GEM function pointer
nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
nouveau/dmem: Fix privileged error in copy engine channel
drm/amd/display: fix hibernate entry for DCN35+
drm/amd/display: Clear update flags after update has been applied
drm/amdgpu: partially revert powerplay `__counted_by` changes
drm/radeon: add late_register for connector
drm/amdkfd: Fix an eviction fence leak
drm/vc4: Stop the active perfmon before being destroyed
drm/v3d: Stop the active perfmon before being destroyed
drm/i915/hdcp: fix connector refcounting
drm/nouveau/gsp: remove extraneous ; after mutex
drm/xe: Drop GuC submit_wq pool
drm/sched: Use drm sched lockdep map for submit_wq
The original commit message:
"
Use current sort mechanism but the real .se_cmp() just returns 0 so
that new columns "Predicted", "Abort" and "Cycles" are created in display
but actually these keys are not the sort keys.
For example:
Overhead Source:Line Symbol Shared Object Predicted Abort Cycles
........ ............ ........ ............. ......... ..... ......
38.25% div.c:45 [.] main div 97.6% 0 3
"
Update missed commit from series "perf report: Show branch flags/cycles
in --branch-history callgraph view" to apply to current repository so that
new columns described above are visible.
Link to original series:
https://lore.kernel.org/lkml/1477876794-30749-1-git-send-email-yao.jin@linux.intel.com/
Reported-by: Dr. David Alan Gilbert <linux@treblig.org>
Suggested-by: Kan Liang <kan.liang@linux.intel.com>
Co-developed-by: Jin Yao <yao.jin@linux.intel.com>
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20241010184046.203822-1-thomas.falcon@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Ensure parsing with and without PMU creates events with the expected
config values. This ensures the tool.json doesn't get out of sync with
tool_pmu_event enum.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Use the regular PMU approaches with tool json events to reduce the
amount of special tool_pmu code - tool_pmu__config_terms and
tool_pmu__for_each_event_cb are removed. Some functions remain, like
tool_pmu__str_to_event, as conveniences to metricgroups. Add
tool_pmu__skip_event/tool_pmu__num_skip_events to handle the case that
tool json events shouldn't appear on certain architectures. This isn't
done in jevents.py due to complexity in the empty-pmu-events.c and
when all vendor json is built into the tool.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Introduce the notion of a common architecture/model that can be used
to find event tables for common PMUs like the tool PMU. By having tool
events be json standard PMU attribute configuration, descriptions,
etc. can be used and these routines are already optimized for things
like binary searching.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Add the expr literals like "#smt_on" as tool events, this allows stat
events to give the values. On my laptop with hyperthreading enabled:
```
$ perf stat -e "has_pmem,num_cores,num_cpus,num_cpus_online,num_dies,num_packages,smt_on,system_tsc_freq" true
Performance counter stats for 'true':
0 has_pmem
8 num_cores
16 num_cpus
16 num_cpus_online
1 num_dies
1 num_packages
1 smt_on
2,496,000,000 system_tsc_freq
0.001113637 seconds time elapsed
0.001218000 seconds user
0.000000000 seconds sys
```
And with hyperthreading disabled:
```
$ perf stat -e "has_pmem,num_cores,num_cpus,num_cpus_online,num_dies,num_packages,smt_on,system_tsc_freq" true
Performance counter stats for 'true':
0 has_pmem
8 num_cores
16 num_cpus
8 num_cpus_online
1 num_dies
1 num_packages
0 smt_on
2,496,000,000 system_tsc_freq
0.000802115 seconds time elapsed
0.000000000 seconds user
0.000806000 seconds sys
```
As zero matters for these values, in stat-display
should_skip_zero_counter only skip the zero value if it is not the
first aggregation index.
The tool event implementations are used in expr but not evaluated as
events for simplicity. Also core_wide isn't made a tool event as it
requires command line parameters.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Now the events are associated with the tool PMU, rename the functions
to reflect this.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
To better reflect the events listed are from the tool PMU. Rename the
enum values from PERF_TOOL_* to TOOL_PMU__EVENT_*.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Rather than treat tool events as a special kind of event, create a
tool only PMU where the events/aliases match the existing
duration_time, user_time and system_time events. Remove special
parsing and printing support for the tool events, but add function
calls for when PMU functions are called on a tool_pmu.
Move the tool PMU code in evsel into tool_pmu.c to better encapsulate
the tool event behavior in that file.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Expose config_term_name as parse_events__term_type_str so that PMUs not
in pmu.c may access it.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Hard coded terms like "config=10" are skipped by perf_pmu__config
assuming they were already applied to a perf_event_attr by parse
event's config_attr function. When doing a reverse number to name
lookup in perf_pmu__name_from_config, as the hardcoded terms aren't
applied the config value is incorrect leading to misses or false
matches. Fix this by adding a parameter to have perf_pmu__config apply
hardcoded terms too (not just in parse event's config_term_common).
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241002032016.333748-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
